Joint revision surgical osteotome blade and surgical osteotome blade

Abstract

The present application relates to a joint revision surgical osteotome blade and surgical osteotome blade comprising a surgical osteotome blade guide block having a plurality of posterior blade guide slots, a central cavity, and a plurality of anterior guide slots having a bi-directionally adjustable L-shaped guide plate. A central cavity of the surgical osteotome blade guide block receives a handle trunnion fastened and fastened to a prosthesis to be removed. The blade guide block is fastened to the trunnion of the prosthesis to be removed using a shank trunnion fastening member housed within the guide block. Straight, curved, flexible, rigid, and composite curved osteotome blades are guided by the blade guide slots to cut the implant out of the bone. Joint revision surgical osteotome blades and surgical osteotome blades facilitate rapid, efficient, and complete removal of existing prostheses during joint revision procedures, and significantly improve positive medical outcomes of joint revision procedures.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This non-provisional patent application is a divisional application of U.S. patent application serial number 18 / 075,574, which is a part-continuation application of applicant's patent application serial number 17 / 899,521 filed on August 30, 2022, which is a part-continuation application of applicant's patent application serial number 17 / 542,636 filed on December 6, 2021, which is a part-continuation application of applicant's patent application serial number 17 / 218,000 filed on March 30, 2021, which is a part-continuation application of serial number 16 / 398,564 filed on April 30, 2019, and which has become U.S. Patent No. 11,116,525 issued on September 14, 2021, which claims the benefit of U.S. provisional patent application serial number 62 / 665,894 filed on May 2, 2018. Technical Field

[0001] The present application relates to a surgical device for revision joint replacement surgery in the hip, shoulder, and knee joints. More specifically, the present application relates to a joint revision surgical osteotome blade and osteotome blade for removing existing implants, and includes a osteotome blade / osteotome guide block, a surgical slide hammer, a locking osteotome blade / osteotome handle, and a plurality of uniquely shaped flexible medial femoral calcar osteotome blades / osteotomes, rigid anterior and posterior osteotome blades / osteotomes, and a curved lateral shoulder release osteotome blade / osteotome. The osteotome blade / osteotome guide block has a plurality of rear blade guide slots, a central cavity, and a plurality of guide slots with bidirectionally adjustable L-shaped guide plates. The blade guide block central cavity is positioned above the trunnion end of the existing prosthesis to be removed and secured to the prosthesis. Straight, curved, and compound curved osteotome blades are guided by the blade guide slots to freely cut the prosthesis. The guide block is secured to the implant and is adjustable to guide the direction and angle of the blade inserted into it. The flexible and rigid blades then separate the implant from the bone, allowing for removal via the action of a slide hammer. The adjustable guide block, along with straight, curved, and compound-curved osteotome blades / osteotomes in various sizes and configurations, and related accessories, are sold as a complete surgeon's kit. The revision osteotome blades and osteotome blades facilitate the quick, efficient, and complete removal of existing prostheses during revision joint surgery. Background Art

[0002] There is a growing need to provide new and improved methods for performing delicate surgical procedures, including hip, shoulder, and knee revisions. These procedures are similar in that an implant must be inserted into the primary bone in the area, and when problems arise with the implant, the prosthesis must be removed.

[0003] Like any other mechanical device, a total hip replacement can be subject to various forms of mechanical or biological failure. Such failure may require a revision hip replacement to address the cause of the failure and its consequences. Revision of a total hip replacement sometimes requires removal of the femoral implant.

[0004] A revision hip implant consists of four parts that work together to restore the original function of the ball and socket joint, namely, (1) a metal hip stem that inserts into the top of the femur; (2) a metal cup that holds the cup liner; (3) a cup liner that holds the femoral head; and (4) a femoral head or ball that attaches to the top of the hip stem and inserts into the cup liner to form the ball and socket joint.

[0005] Wear and tear of plastic components has unpleasant side effects. Tiny plastic particles that wear away are attacked by the body's immune system, and this immune response also attacks the healthy bone surrounding the implant. This leads to a condition called osteolysis, in which the bone in the area surrounding a joint implant softens as it is absorbed by the body, making the implant unstable and requiring revision.

[0006] If the bone next to the primary implant is fractured in an accident, revision surgery may be necessary to provide a safe, stable joint. In this case, the original implant may need to be removed, the fracture addressed, and a revision joint implanted.

[0007] In a low percentage of cases, the hip joint may become infected after surgery. While infections can be successfully treated with antibiotics, some severe cases may require follow-up revision surgery.

[0008] Revision hip replacements are performed relatively infrequently. In the United States, approximately 18 revision hip replacements are performed for every 100 hip replacements. The most common reasons for revision are: (1) recurrent (repeated) dislocation of the hip replacement; (2) mechanical failure (wear and tear of the implant—loosening or rupture); and (3) infection.

[0009] Numerous innovations have been proposed in the prior art for various revision joint surgical devices. While these innovations may be suitable for their specific individual purposes, they differ from the revision joint surgical osteotome and osteotome blades of the present invention, as compared below. The following is an overview of those prior art patents that are most relevant to the revision joint surgical osteotome and osteotome blades at hand, along with a description outlining the differences between the features of the present application and those of the prior art.

[0010] U.S. Patent No. 10,959,738 to Sweitzer provides an osteotome designed for inserting and removing a medical device implant. The osteotome includes a handle, a blade attachment assembly surrounding a first end of the handle for receiving a blade, and a wing assembly surrounding a second end of the handle opposite the first end. The wing assembly further includes wings extending outward from the handle.

[0011] Authorize Rivera, the U.S. Patent number 11,191,651 of Jr. discloses and teaches a kind of implant removal instrument, this implant removal instrument is used for removing femoral implant from femur by providing U-shaped body basically, this body has the substantially rectangular opening positioned thereon, allows to place U-shaped body basically above the neck of femoral implant, makes the sharpening front edge of U-shaped body directly contact with the inner surface of femoral implant basically.U-shaped body can have front side edge, and these front side edges extend beyond front edge to allow front side edge to cut the front side surface and the rear side surface of implant.

[0012] U.S. Published Patent Application No. 2022 / 0125591A1 to Rivera, Jr. discloses and claims a tool and associated method for removing a prosthetic implant. Although the tool can be used to remove a variety of different prosthetic implants, it is particularly suitable for removing femoral implants. In one embodiment, a lateral tool and a medial tool are utilized simultaneously. The lateral tool includes a generally arcuate shape having upright sidewalls defining an arcuate interior. Thus, the lateral tool is sized to follow the contour of the lateral side of the femoral implant. The medial tool includes opposing sidewalls defining an interior opening. The opening is sized to accommodate the neck of the femoral implant, thereby allowing the tool to closely follow the medial bone / implant interface.

[0013] Amino's U.S. Disclosed Patent Application No. 2022 / 0240948A1 teaches and describes a thin-blade osteotome system for separating the outer surface of an orthopedic implant and the inner surface of a bone from each other, the thin-blade osteotome system comprising: a thin-blade osteotome having a blade tip at a distal end portion in the longitudinal direction; and a hammer direction changing tool that engages with the thin-blade osteotome to apply force in the thrust direction of the blade tip. The thin-blade osteotome includes a hammer air supply portion, preferably a through-hole penetrating in the thickness direction, at a predetermined position on the proximal side closer to the surgeon. The hammer direction changing tool includes: a hammer portion to be hammered, the hammer portion being located at the proximal end portion; and a recess formed at the distal end portion to engage with the circumferential inner surface of the through-hole.

[0014] None of the aforementioned prior art teaches or suggests the specific unique features and components of joint revision surgical osteotome blades and surgical osteotome blades, and therefore indicates a need for further improvements in various types of surgical device systems that can be used for these purposes, namely, to make the removal of existing prostheses and implants easier and revision surgery more efficient and effective, thereby improving patient outcomes.

[0015] In this regard, before explaining in detail at least one embodiment of the present invention, it should be understood that the present invention is not limited in its application to the details of construction or arrangement of components set forth in the following description or illustrated in the accompanying drawings. The present invention is capable of other embodiments and of being practiced and carried out in various ways. Furthermore, it should be understood that the phraseology and terminology employed herein are for illustrative purposes only and should not be construed as limiting. Summary of the Invention

[0016] The primary advantage of revision osteotome blades and osteotome blades is that they enable significantly faster, safer, and more successful revision procedures to be performed, resulting in significantly less blood loss during revision procedures and much shorter operating room times during revision procedures.

[0017] Another advantage of using the revision osteotome blade and the osteotome blade is that the revision joint surgery can be performed with fewer instruments and tools (such as cables and long handles) during surgery.

[0018] Another advantage of using revision osteotome blades and osteotome blades is that full weight bearing is achieved in a shorter time after revision joint surgery, with fewer complications during and after revision joint surgery, resulting in lower morbidity and mortality after revision joint surgery.

[0019] Another advantage of using a revision osteotome blade and osteotome blade is that it will accommodate the removal of collared femoral stems, which are more difficult to remove than non-collared stems.

[0020] An advantage of the revision osteotome blades and osteotome blades is that they provide a surgical system having four main components, including (1) an osteotome / osteotome blade guide block assembly; (2) a surgical slide hammer; (3) an osteotome blade / osteotome locking handle assembly; and (4) a variety of flexible and rigid osteotome / osteotome cutting blades.

[0021] An advantage of a revision osteotome blade and a surgical osteotome blade is that it provides a surgical slide hammer that can be attached to a guide block for rapid implant removal during a revision joint surgical procedure.

[0022] Another advantage of the revision osteotome blades and osteotome blades is that it provides a osteotome blade / osteotome locking handle assembly that allows for rapid insertion and removal of various osteotome blades / osteotomes as needed by the surgeon during a revision surgical procedure.

[0023] Another advantage of the revision joint surgical device is the provision of flexible, uniquely shaped medial calcar bone tome blades and osteotome blades, curved lateral shoulder release bone tome blades and osteotome blades, universal bone tome blades and osteotome blades, and anterior and posterior bone tome blades and osteotome blades.

[0024] Another advantage of the revision joint surgical device is that a flexible, uniquely shaped medial calcar osteotome blade is provided having spoon-shaped and fork-shaped sharpened cutting edges, as both an osteotome blade with bevels on both sides of the cutting edge and a surgical osteotome blade with a bevel on one side of the cutting edge.

[0025] Another advantage of the revision joint surgical device is the provision of flexible and rigid osteotome blades and osteotome blades in the form of curved lateral shoulder release osteotome blades and osteotome blades.

[0026] Another advantage of the revision joint surgical device is the provision of rigid, uniquely shaped anterior and posterior osteotome blades and osteotome blades.

[0027] Another advantage of the revision joint surgical device is that it provides a flexible, uniquely shaped medial femoral osteotome blade with spoon-shaped and fork-shaped sharpened cutting edges, as both a osteotome blade with bevels on both sides of the cutting edge and a surgical osteotome blade with a bevel on one side of the cutting edge, which have an elongated blade shaft and a narrower cutting edge.

[0028] In summary, the four main components of the revision arthroplasty system and method, namely: (1) a tome blade / osteotomy guide block assembly; (2) a tome blade / osteotomy locking handle assembly; (3) a surgical slide hammer; and (4) a revision arthroplasty tome blade and various flexible femoral calcar tome blades / osteotomes, lateral shoulder release blades, anterior and posterior blades, and a universal release osteotome work together to make implant removal more efficient, less time-consuming, and with significantly less patient blood loss, all of which result in improved patient outcomes. In addition, the system can be adjusted for any size and shape of implant to be removed, including prostheses with and without collars. A guide block assembly embodiment of the revision arthroplasty system and method, wherein the assembled tome blade / osteotomy guide block can be adjusted in two separate ways, the guide block having an adjustable L-shaped tome blade / osteotomy guide plate having a lower portion and an upper portion. First, the adjustment plate retaining screw can be turned outward (raised) or inward (lowered) to retract or extend the lower adjustment plate toward or away from the handle. Second, the adjustment plate retaining screw can be completely removed and the lower section of the guide plate shifted to a different guide slot within the plurality of blade guide slots that is closer to or farther from the handle to be removed. One or both of the aforementioned guide plate adjustments can be made to successfully guide the cutting blade down handles of different sizes, and in this way, the guide block assembly can accommodate different sizes of handles to be removed during revision surgery. Furthermore, both collared and collarless handles can be removed by making appropriate adjustments to the length and distance of the adjustable guide plate.

[0029] A joint revision surgery system is provided, which includes: (a) a bone scalpel blade and a surgical osteotome blade guide block assembly, the surgical osteotome blade / surgical osteotome guide block assembly having: a central cavity and a plurality of bone scalpel blade guide slots at the front; a handle trunnion fastening member, the handle trunnion fastening member can be installed in the central cavity and fastened to the bone scalpel blade guide block; an L-shaped adjustable blade guide plate, the L-shaped adjustable blade guide plate can be movably positioned in the plurality of bone scalpel blade / surgical osteotome guide slots at the front; and a plurality of bone scalpel blade / surgical osteotome guide slots at the rear, the plurality of bone scalpel blade / surgical osteotome guide slots at the rear for receiving bone scalpel blades and surgical osteotome; (b) a surgical slide hammer assembly; (c) a bone scalpel blade / surgical osteotome locking handle assembly; and (d) a plurality of bone scalpel blades and a surgical osteotome blade comprising a osteotome blade having a flexible and rigid blade shaft; wherein the assembled osteotome blade / surgical osteotome guide block is attached to an implanted femoral stem to be removed by attaching the handle trunnion fastening member to the handle trunnion, and then the L-shaped adjustable guide plate is adjusted upward and downward using the retaining screw, and the L-shaped adjustable guide plate is adjusted forward and backward by extending the lower section of the adjustable guide plate into one or more of the plurality of guide slots defined by the guide block assembly, and then the flexible osteotome blade is extended downward through the anterior osteotome blade guide slot that accommodates the L-shaped adjustable guide plate, and the rigid osteotome blade is extended downward through the posterior slot to reach the femoral stem, thereby separating the femoral stem from the femur during revision surgery. What is the difference between a surgical osteotome and an osteotome blade? An osteotome is an orthopedic instrument typically used for cutting bone. Surgical osteotome is used for bone reshaping. Functionally, the main difference is that an osteotome has one beveled edge, while a chisel has two beveled edges. Additionally, a flexible medial femoral calcar osteotome blade having a spoon-shaped and fork-shaped cutting edge can be configured as an osteotome blade having two beveled sharpened cutting edges, or as a surgical osteotome in which only one side of the sharpened cutting edge is beveled. It is also an aspect of the present invention that all blades disclosed and described herein can be configured as osteotome blades or surgical osteotome blades, can be flexible or rigid, and can be curved and compound curved (curved in two planes). Osteotomes and surgical osteotome chisels are collectively referred to as osteotome, i.e., a group of surgical blades that includes a subgroup of surgical osteotome.

[0030] Continuing with the above description, it should be recognized that the optimal dimensional relationships of the components of the revision osteotome blade and the osteotome blade, including variations in size, material, shape, form, function and mode of operation, assembly and use, are considered obvious to those skilled in the art, and all relationships equivalent to the relationships shown in the drawings and described in the specification are intended to be encompassed by the present invention. Therefore, the foregoing is considered to be merely illustrative of the principles of the revision osteotome blade and the osteotome blade. Further, since those skilled in the art will readily make various modifications and changes, it is not intended to limit the revision osteotome blade and the osteotome blade of the present invention to the exact structure and operation shown and described, and therefore, all suitable modifications and equivalents may be attributed to and fall within the scope of this application.

[0031] Although the apparatus and method have been or will be described in a functional sense for the sake of grammatical fluency, it is to be expressly understood that the claims should not in any way be construed as necessarily limited to the "means" construction or "step" limitations unless expressly stated pursuant to 35 USC 112 or similar applicable law, but should be given the full scope of meaning and equivalents provided by the definitions in the claims under the doctrine of judicial equivalence, and in such case, claims expressly stated pursuant to 35 USC 112 should be given their full legal equivalent effect pursuant to 35 USC 112 or similar applicable law. Turning now to the following figures, the joint revision surgery apparatus can be better visualized, wherein like elements are designated by like reference numerals. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments of revision osteotome blades and osteotome blades and, together with the description, serve to explain the principles of the present application.

[0033] Figure 1 Depicted is a top side elevation perspective view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade / surgical osteotome guide block having an adjustable L-shaped osteotome blade guide plate fully extended downwardly.

[0034] Figure 2 Depicted is a side elevational view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully extended downwardly.

[0035] Figure 3 Depicted is an enlarged side elevation view of an upper section guide plate and a guide plate adjustment screw with an integral retention washer welded to the underside of the upper section guide plate.

[0036] Figure 4 Depicted is a front view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully extended downwardly.

[0037] Figure 5 Describes how Figure 4 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is shown illustrating an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully extended downwardly.

[0038] Figure 6 Depicted is a top plan view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate.

[0039] Figure 7 Depicted is a side elevation view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate.

[0040] Figure 8 Depicted is a bottom view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate.

[0041] Figure 9 Depicted is a top side elevation perspective view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate.

[0042] Figure 10 Depicted is a bottom rear view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate.

[0043] Figure 11 Depicted is a top side elevation perspective view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully retracted upward.

[0044] Figure 12 Depicted is a side elevational view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully retracted upward.

[0045] Figure 13Depicted is a front view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully retracted upward.

[0046] Figure 14 Depicts Figure 13 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully retracted upward.

[0047] Figure 15 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully extended downwardly and positioned in a center osteotome blade guide slot within the guide block.

[0048] Figure 16 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully retracted upward and positioned in a center osteotome blade guide slot within the guide block.

[0049] Figure 17 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully extended downwardly and positioned in an uppermost osteotome blade guide slot within the guide block.

[0050] Figure 18 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled osteotome blade guide block having an adjustable L-shaped osteotome blade guide plate fully retracted upward and positioned in an uppermost osteotome blade guide slot within the guide block.

[0051] Figure 19 Depicted is a side view of a shank-trunnion fastener.

[0052] Figure 20 Describes how Figure 19 A cross-sectional view of a shank-trunnion fastener is shown.

[0053] Figure 21 Depicted is a bottom view of a shank-trunnion fastener.

[0054] Figure 22 Depicted is a side perspective view of a shank-trunnion fastener.

[0055] Figure 23Depicted is an exploded view of an alternative embodiment of a revision joint surgical apparatus showing an assembled treadmill blade guide block having adjustable L-shaped treadmill blade guide plates illustrating the position of the treadmill blades prior to insertion into the front and rear treadmill blade guide slots within the guide block.

[0056] Figure 24 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled treadmill blade guide block having adjustable L-shaped treadmill blade guide plates showing surgical treadmill blades inserted into anterior and posterior treadmill blade guide slots within the guide block for removing a collarless implanted femoral stem.

[0057] Figure 25 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled treadmill blade guide block having adjustable L-shaped treadmill blade guide plates showing surgical treadmill blades inserted into anterior and posterior treadmill blade guide slots within the guide block for removing a collarless implanted femoral stem.

[0058] Figure 26 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled treadmill blade guide block having an adjustable L-shaped treadmill blade guide plate, showing treadmill blades inserted into anterior and posterior treadmill blade guide slots within the guide block for removing a collarless implant femoral stem.

[0059] Figure 27 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled treadmill blade guide block having an adjustable L-shaped treadmill blade guide plate, showing treadmill blades inserted into anterior and posterior treadmill blade guide slots within the guide block for removing a collarless implant femoral stem.

[0060] Figure 28 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled treadmill blade guide block having an adjustable L-shaped treadmill blade guide plate, showing treadmill blades inserted into anterior and posterior treadmill blade guide slots within the guide block for removing a collarless implant femoral stem.

[0061] Figure 29 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled treadmill blade guide block having an adjustable L-shaped treadmill blade guide plate, showing treadmill blades inserted into anterior and posterior treadmill blade guide slots within the guide block for removing a collared implant femoral stem.

[0062] Figure 30 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus is depicted showing an assembled treadmill blade guide block having an adjustable L-shaped treadmill blade guide plate, showing treadmill blades inserted into anterior and posterior treadmill blade guide slots within the guide block for removing a collared implant femoral stem.

[0063] Figure 31 Depicts a top view of the heavy curved blade, curved tip, and metal end cap.

[0064] Figure 32 Depicts a side view of the heavy curved blade, curved tip, and metal end cap.

[0065] Figure 33 Depicts a top view of a thin curved blade, curved tip, and metal end cap.

[0066] Figure 34 Depicts a side view of a thin curved blade, curved tip, and metal end cap.

[0067] Figure 35 Depicted is a top view of a straight, narrow, flat blade with an osteotome-shaped tip and a metal end cap.

[0068] Figure 36 Depicts a top view of a straight, broad, flat blade with a triangular tip and a metal end cap.

[0069] Figure 37 Depicts a side view of the thin curved blade, pointed end, straight handle, and metal end cap.

[0070] Figure 38 Depicts a side view of a two-part handle with a thin curved blade, pointed end, and closed metal end cap.

[0071] Figure 39 Depicted is a top side elevation perspective view of a surgical slide hammer attachable to an assembled scalpel blade guide block.

[0072] Figure 40 Depicted is a top plan view of a surgical slide hammer attachable to an assembled osteotome blade / osteotome guide block.

[0073] Figure 41 Depicted is a side elevation view of a surgical slide hammer attachable to an assembled osteotome blade / osteotome guide block.

[0074] Figure 42 Depicted is a bottom view of a surgical slide hammer attachable to an assembled osteotome blade / osteotome guide block.

[0075] Figure 43 Describes how Figure 41 A surgical slide hammer is shown attached to an assembled osteotome blade / osteotome guide block rotated 90 degrees in a rotated side elevation view.

[0076] Figure 44 Depicted is a top side elevation perspective view of a surgical slide hammer attachable to an assembled osteotome blade guide block, shown here in position attached to the assembled osteotome blade guide block.

[0077] Figure 45 Depicted is a side elevation view of a surgical slide hammer attachable to an assembled osteotome blade guide block, shown here in position attached to the assembled osteotome blade guide block.

[0078] Figure 46 A rear view of a surgical slide hammer attachable to an assembled osteotome blade guide block is depicted, shown here with the surgical slide hammer attached in position to the assembled osteotome blade guide block.

[0079] Figure 47 Depicts Figure 46 A cross-sectional view of a surgical slide hammer attachable to an assembled osteotome blade guide block is shown here with the surgical slide hammer attached in position to the assembled osteotome blade guide block.

[0080] Figure 48 Depicted is a bottom view of a surgical slide hammer attachable to an assembled osteotome blade guide block, shown here with the surgical slide hammer in position attached to the assembled osteotome blade guide block.

[0081] Figure 49 Depicted is a top side elevation perspective view of a surgical slide hammer attachable to an assembled osteotome blade guide block, shown here in position attached to the assembled osteotome blade guide block.

[0082] Figure 50 Depicted is a top plan view of a surgical slide hammer attachable to an assembled osteotome blade guide block, shown here in position attached to the assembled osteotome blade guide block.

[0083] Figure 51 Depicted is a side elevation view of a surgical slide hammer attachable to an assembled osteotome blade guide block, shown here in position attached to the assembled osteotome blade guide block.

[0084] Figure 52 Depicted is a top side elevation perspective view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an outward locked position, thereby securing the surgical osteotome blade therein.

[0085] Figure 53 Depicted is a bottom side elevation perspective view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an outward locked position, thereby securing the surgical osteotome blade therein.

[0086] Figure 54 Depicted is a top side elevation perspective view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an inward unlocked position, thus enabling insertion and removal of the surgical osteotome blade.

[0087] Figure 55 Depicted is a top side elevation exploded view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an inward unlocked position, thus enabling insertion and removal of the surgical osteotome blade.

[0088] Figure 56 Depicted is a bottom side elevation exploded view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an inward unlocked position, thus enabling insertion and removal of the surgical osteotome blade.

[0089] Figure 57 Depicted is a front view of a surgical blade locking osteotome handle assembly with a surgical osteotome blade inserted therein.

[0090] Figure 58 Depicted is a side elevation view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an inward unlocked position, thus enabling insertion and removal of the surgical osteotome blade.

[0091] Figure 59 Depicted is a top plan view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an outward locked position, which secures the surgical osteotome blade therein.

[0092] Figure 60 Depicted is a bottom view of a surgical blade locking osteotome handle assembly with a surgical osteotome blade inserted therein, and showing the locking lever in an outward locked position, which secures the surgical osteotome blade therein.

[0093] Figure 61 Depicted is a front view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an outward locked position, thereby securing the surgical osteotome blade therein.

[0094] Figure 62 Describes how Figure 61A cross-sectional view of a surgical blade locking osteotome handle assembly is shown having a surgical blade inserted therein and showing the locking lever in an outward locked position thereby securing the surgical osteotome blade therein.

[0095] Figure 63 Depicted is a top view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an inward unlocked position, thus enabling insertion and removal of the surgical osteotome blade.

[0096] Figure 64 Depicted is a front view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an inward, unlocked position, thus enabling insertion and removal of the surgical osteotome blade.

[0097] Figure 65 Depicted is a bottom view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein and showing the locking lever in a closed position.

[0098] Figure 66 Depicted is a side elevation view of a surgical blade locking osteotome handle assembly with a surgical blade inserted therein, and showing the locking lever in an inward unlocked position, thus enabling insertion and removal of the surgical osteotome blade.

[0099] Figure 67 Depicted is a cross-sectional side elevation view of a surgical blade locking osteotome handle assembly with a scalpel blade inserted therein, shown here attached in position to a scalpel blade guide block assembly.

[0100] Figure 68 Describes how Figure 67 A rear view of a surgical blade locking osteotome handle assembly is shown with a surgical blade inserted therein, shown here attached in position to a surgical blade guide block assembly.

[0101] Figure 69 Depicted is a top side elevation view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge.

[0102] Figure 70 Depicted is an anterior view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge.

[0103] Figure 71 Describes how Figure 70 A cross-sectional view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge is shown.

[0104] Figure 72Depicted is a top plan view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge.

[0105] Figure 73 Depicted is a bottom view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge.

[0106] Figure 74 Depicted is a posterior view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge.

[0107] Figure 75 Depicted is a left lateral elevational view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge.

[0108] Figure 76 Depicted is an anterior view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge.

[0109] Figure 77 Depicts a right lateral elevational view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge, showing Figure 75 the opposite side of the .

[0110] Figure 78 Depicted is a bottom view of a flexible medial calcar osteotome blade having a spoon-shaped cutting edge and an elongated blade shaft.

[0111] Figure 79 Depicted is a top plan view of a flexible medial calcar osteotome blade having a spoon-shaped cutting edge and an elongated blade shaft.

[0112] Figure 80 Depicted is a posterior view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge and an elongated blade shaft.

[0113] Figure 81 Depicted is a left lateral elevational view of a flexible medial calcar osteotome blade having a spoon-shaped cutting edge and an elongated blade shaft.

[0114] Figure 82 Depicted is a front view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge and an elongated blade shaft.

[0115] Figure 83 Depicted is a right lateral elevational view of a flexible medial calcar osteotome blade having a spoon-shaped cutting edge and an elongated blade shaft.

[0116] Figure 84 Depicted is a top side elevation perspective view of a flexible medial calcar osteotome blade having a spoon-shaped cutting edge and an elongated blade shaft.

[0117] Figure 85 Depicted is a front view of a flexible medial calcar osteotome blade with a spoon-shaped cutting edge and an elongated blade shaft.

[0118] Figure 86 Describes how Figure 85 A cross-sectional view of a flexible medial calcar osteotome blade is shown having a scoop-shaped cutting edge and an elongated blade shaft.

[0119] Figure 87 Depicted is a top side elevation perspective view of a flexible medial calcar osteotome blade having a forked cutting edge and an elongated blade shaft.

[0120] Figure 88 Depicted is a front view of a flexible medial calcar osteotome blade with a forked cutting edge and an elongated blade shaft.

[0121] Figure 89 Describes how Figure 88 A cross-sectional view of a flexible medial calcar osteotome blade is shown having a forked cutting edge and an elongated blade shaft.

[0122] Figure 90 Depicted is a top plan view of a flexible medial calcar osteotome blade having a forked cutting edge.

[0123] Figure 91 Depicted is a bottom view of a flexible medial calcar osteotome blade with a forked cutting edge.

[0124] Figure 92 Depicted is a posterior view of a flexible medial calcar osteotome blade with a forked cutting edge.

[0125] Figure 93 Depicted is a left lateral elevational view of a flexible medial calcar osteotome blade having a forked cutting edge.

[0126] Figure 94 Depicted is a front view of a flexible medial calcar osteotome blade with a forked cutting edge.

[0127] Figure 95 Depicted is a right lateral elevational view of a flexible medial calcar osteotome blade having a forked cutting edge.

[0128] Figure 96 Depicted is a top side elevation perspective view of a flexible medial calcar osteotome blade having a forked cutting edge and an elongated blade shaft.

[0129] Figure 97 Depicted is a front view of a flexible medial calcar osteotome blade with a forked cutting edge and an elongated blade shaft.

[0130] Figure 98 Describes how Figure 97 A cross-sectional view of a flexible medial calcar osteotome blade is shown having a forked cutting edge and an elongated blade shaft.

[0131] Figure 99Depicted is a top plan view of a flexible medial calcar osteotome blade having a forked cutting edge and an elongated blade shaft.

[0132] Figure 100 Depicted is a bottom view of a flexible medial calcar osteotome blade having a forked cutting edge and an elongated blade shaft.

[0133] Figure 101 Depicted is a posterior view of a flexible medial calcar osteotome blade with a forked cutting edge and an elongated blade shaft.

[0134] Figure 102 Depicted is a left lateral elevational view of a flexible medial calcar osteotome blade having a forked cutting edge and an elongated blade shaft.

[0135] Figure 103 Depicted is a front view of a flexible medial calcar osteotome blade with a forked cutting edge and an elongated blade shaft.

[0136] Figure 104 Depicted is a right lateral elevational view of a flexible medial calcar osteotome blade having a forked cutting edge and an elongated blade shaft.

[0137] Figure 105 Depicted is a top plan view of a curved lateral shoulder releasing a bone cutter blade.

[0138] Figure 106 Depicts a bottom view of the osteotome blade with the curved lateral shoulder releasing it.

[0139] Figure 107 Left lateral elevation depicting the curved lateral shoulder releasing the osteotome blade.

[0140] Figure 108 Anterior view depicting the curved lateral shoulder releasing the osteotome blade.

[0141] Figure 109 Right lateral elevation depicting the curved lateral shoulder releasing the osteotome blade.

[0142] Figure 110 A top side elevation view depicting a curved lateral shoulder releasing a bone knife blade.

[0143] Figure 111 A top side elevation view depicting a curved lateral shoulder releasing a bone knife blade.

[0144] Figure 112 Anterior view depicting the curved lateral shoulder releasing the osteotome blade.

[0145] Figure 113 Describes how Figure 112 A cross-sectional view of the curved lateral shoulder shown releasing the osteotome blade.

[0146] Figure 114 Depicted is a top plan view of a curved lateral shoulder releasing a bone tome blade having a protruding stop feature on the blade shaft.

[0147] Figure 115 Depicted is a bottom view of a curved lateral shoulder releasing a osteotome blade having a protruding stop feature on the blade shaft.

[0148] Figure 116 Depicted is a posterior view of a curved lateral shoulder releasing a bone cutter blade having a protruding stop feature on the blade shaft.

[0149] Figure 117 Depicted is a front view of a curved lateral shoulder releasing a bone cutter blade having a protruding stop feature on the blade shaft.

[0150] Figure 118 Depicted is a right side elevation view of a curved lateral shoulder releasing a bone tome blade having a protruding stop feature on the blade shaft.

[0151] Figure 119 Depicted is a left side elevation view of a curved lateral shoulder releasing a bone cutter blade having a protruding stop feature on the blade shaft.

[0152] Figure 120 Depicted is a top side elevation perspective view of a curved lateral shoulder releasing a bone knife blade having a protruding stop feature on the blade shaft.

[0153] Figure 121 Depicted is a front view of a curved lateral shoulder releasing a bone cutter blade having a protruding stop feature on the blade shaft.

[0154] Figure 122 Describes how Figure 121 A cross-sectional view of a bone tome blade shown with a curved lateral shoulder releasing a protruding stop feature on the blade shaft.

[0155] Figure 123 Depicted is a top side elevation perspective view of a universal release osteotome blade.

[0156] Figure 124 Depicted is a front view of a universal release osteotome blade.

[0157] Figure 125 Describes how Figure 124 A cross-sectional view of a universal release osteotome blade is shown.

[0158] Figure 126 Depicted is a top plan view of a universal release osteotome blade.

[0159] Figure 127 Depicted is a bottom view of a universal release osteotome blade.

[0160] Figure 128 Depicted is a posterior view of a Universal Release Osteotome Blade.

[0161] Figure 129 Depicted is a left side elevation view of a universal release osteotome blade.

[0162] Figure 130 Depicted is a front view of a universal release osteotome blade.

[0163] Figure 131 Depicted is a right side elevation view of a universal release osteotome blade.

[0164] Figure 132 Depicted are top side elevation perspective views of anterior and posterior osteotome blades having a left curved cutting edge and a right straight cutting edge.

[0165] Figure 133 Depicted are front views of anterior and posterior osteotome blades having a curved cutting edge on the left and a straight cutting edge on the right.

[0166] Figure 134 Describes how Figure 133 Shown are cross-sectional views of anterior and posterior osteotome blades having a left curved cutting edge and a right straight cutting edge.

[0167] Figure 135 Depicted are top plan views of anterior and posterior osteotome blades having a left curved cutting edge and a right straight cutting edge.

[0168] Figure 136 Depicted are bottom views of anterior and posterior osteotome blades having a left curved cutting edge and a right straight cutting edge.

[0169] Figure 137 Depicted are posterior views of anterior and posterior osteotome blades having a curved cutting edge on the left and a straight cutting edge on the right.

[0170] Figure 138 Depicted are left side elevation views of anterior and posterior osteotome blades having a left curved cutting edge and a right straight cutting edge.

[0171] Figure 139 Depicted are front views of anterior and posterior osteotome blades having a curved cutting edge on the left and a straight cutting edge on the right.

[0172] Figure 140Depicted are right side elevation views of anterior and posterior osteotome blades having a left curved cutting edge and a right straight cutting edge.

[0173] Figure 141 Depicts a top side elevation perspective view of anterior and posterior osteotome blades having a right curved cutting edge and a left straight cutting edge, the osteotome blades being configured to Figures 132 to 140 Mirror image of blade shown.

[0174] Figure 142 Depicted are front views of anterior and posterior osteotome blades having a right curved cutting edge and a left straight cutting edge.

[0175] Figure 143 Describes how Figure 142 Shown are cross-sectional views of anterior and posterior osteotome blades having a right curved cutting edge and a left straight cutting edge.

[0176] Figure 144 Depicted are top plan views of anterior and posterior osteotome blades having a right curved cutting edge and a left straight cutting edge.

[0177] Figure 145 Depicted are bottom views of anterior and posterior osteotome blades having a right curved cutting edge and a left straight cutting edge.

[0178] Figure 146 Depicted are posterior views of anterior and posterior osteotome blades having a right curved cutting edge and a left straight cutting edge.

[0179] Figure 147 Depicted are left side elevation views of anterior and posterior osteotome blades having a right side curved cutting edge and a left side straight cutting edge.

[0180] Figure 148 Depicted are front views of anterior and posterior osteotome blades having a right curved cutting edge and a left straight cutting edge.

[0181] Figure 149 Depicted are right side elevation views of anterior and posterior osteotome blades having a right side curved cutting edge and a left side straight cutting edge.

[0182] Figure 150 Depicted is a front view of a bone knife handle having a flexible medial calcar scoop blade attached thereto, wherein the flexible medial calcar scoop blade extends through and is guided by a guide block assembly and cuts the medial calcar away from an implanted femoral stem.

[0183] Figure 151Depicted is a top side elevation perspective view of a bone knife handle having a flexible medial calcar scoop blade attached thereto, wherein the flexible medial calcar scoop blade extends through and is guided by a guide block assembly and cuts the medial calcar away from an implanted femoral stem.

[0184] Figure 152 Depicted is a posterior view of a bone knife handle having a flexible medial calcar scoop blade attached thereto, wherein the flexible medial calcar scoop blade extends through and is guided by the guide block assembly and cuts the medial calcar away from the implanted femoral stem.

[0185] Figure 153 Describes how Figure 152 A cross-sectional view of a bone tread handle is shown having a flexible medial calcar scoop blade attached thereto, wherein the flexible medial calcar scoop blade extends through and is guided by the guide block assembly and cuts the medial calcar away from an implanted femoral stem.

[0186] Figure 154 Depicted is a front view of a bone knife handle having a flexible medial calcar fork blade attached thereto, wherein the flexible medial calcar fork blade extends through and is guided by a guide block assembly and cuts the medial calcar away from an implanted femoral stem.

[0187] Figure 155 Depicted is a top side elevation perspective view of a bone knife handle having a flexible medial calcar fork blade attached thereto, wherein the flexible medial calcar fork blade extends through and is guided by a guide block assembly and cuts the medial calcar away from an implanted femoral stem.

[0188] Figure 156 Depicted is a posterior view of a bone knife handle having a flexible medial calcar fork blade attached thereto, wherein the flexible medial calcar fork blade extends through and is guided by a guide block assembly and cuts the medial calcar away from an implanted femoral stem.

[0189] Figure 157 Describes how Figure 156 A cross-sectional view of a bone knife handle is shown having a flexible medial calcar fork blade attached thereto, wherein the flexible medial calcar fork blade extends through and is guided by the guide block assembly and cuts the medial calcar away from an implanted femoral stem. DETAILED DESCRIPTION

[0190] As required, detailed embodiments 10A, 20, 100, 140, 200, 220, 260, 270, 280, 290, 300, 320, 340, 350, and 370 of the present invention for revision osteotome and osteotome blades are disclosed herein. However, it should be understood that the disclosed embodiments are merely examples of designs that can be implemented in various forms. Therefore, the specific functional and structural details disclosed herein should not be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed configuration.

[0191] Figure 1 A top side elevation perspective view of an embodiment of a revision joint surgical apparatus 10A is depicted showing an assembled osteotome blade / surgical osteotome guide block 20 (hereinafter referred to as osteotome blade guide block 20) ​​having an adjustable L-shaped osteotome blade guide plate 38 that extends fully downwardly and is positioned in the forward-most blade guide slot within a plurality of blade guide slots 36. As previously described in U.S. Patent Application Serial No. 17 / 899,521 and U.S. Patent Application Serial No. 18 / 075,574 (both of which are incorporated herein in their entireties), the guide block is made of two half sections 22 and 24 that are secured together using hexagon socket head cap screws and alignment pins (see below). Figure 23 2 and 3. The L-shaped osteotome blade guide plate has an upper portion 26 and a lower portion 38. The upper guide plate portion includes an adjustable guide plate retaining screw slot 28 in which an adjustable guide plate retaining screw 30 is threaded into a threaded hole (not shown) and into the guide block assembly 20. The plurality of front blade guide slots 36 for receiving the adjustable guide plate 38 and osteotome blade (not shown, see below) and the central cavity 40 are integral to the guide block assembly 20. The central cavity 40 is configured to receive a trunnion fastening member 44 (in Figure 5), and the trunnion fastening member is tightened using a tightening nut 46. In addition, the assembled guide block 20 defines a plurality of rear blade guide slots. In this way, the guide block can be adjusted for any size femoral stem implant to be removed during revision surgery. The various adjustments are described in more detail below. This view clearly shows the position of the guide plate adjustment screw 30 and the adjustment screw slot 28 within the upper section of the L-shaped guide plate 26. The adjustment screw 30 can be adjusted up and down by screwing in or out of the assembled guide block 20, and the adjustment screw can be placed in any of the plurality of blade guide slots 36 within the guide block 20. In order to move the lower section guide plate 38 to another guide slot in the plurality of guide slots 36, the adjustment screw 30 must be screwed out and removed, and then replaced by sliding it to another position so that the guide plate lower section 38 can be placed in a different guide slot 36.

[0192] Figure 2 A side elevation view of an embodiment of a revision joint surgical apparatus 10A is depicted showing an assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate 38 fully downwardly extended. This view better illustrates the lower guide plate 38 extending downwardly below the guide block assembly 20.

[0193] Figure 3 An enlarged side elevation view of the upper section guide plate 26 and the guide plate adjusting screw 30 with an integral retaining washer 40 welded to the underside of the upper section guide plate 26 is depicted. The guide plate retaining screw 30 is partially unscrewed here, exposing a threaded section 42. The retaining washer allows the guide plate upper section 26 to be raised and secured in a high position when the adjusting plate retaining screw 30 is screwed upward, or lowered when the retaining washer is screwed downward. A freely rotating retaining washer (see FIG. 4 ) is envisioned. Figure 14 The illustrated retention washer 41 may be used in place of the welded-on retention washer 40 to accomplish the same task of securing the adjustment plates 26 and 38 .

[0194] Figure 4 A front view of an alternative embodiment of a revision joint surgical device 10A is depicted, showing an assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate 38 that extends fully downward. As previously described in U.S. patent application Ser. No. 17 / 899,521 (which is incorporated herein in its entirety), the guide block is made of two half sections 22 and 24. This view better illustrates the lower guide plate 38 extending downward into a plurality of front blade guide slots 36 within the guide block assembly 20.

[0195] Figure 5 Depicts Figure 4FIG2 is a cross-sectional view of an embodiment of a revision joint surgical device 10A, showing an assembled osteotome blade / osteotome guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 26 and a fully downwardly extending lower section 38. This view illustrates the position of the central cavity 40 and the trunnion fastening member 44 secured by the fastening nut 46 within the central cavity 40. The cross-sectional view also clearly illustrates the plurality of blade guide slots 36 and the lower guide plate 38 extending downwardly into the forwardmost guide slot of the plurality of guide slots 36. The lower guide plate 38 can be adjusted by removing the retaining screw 30 and shifting the lower guide plate 38 to a different slot within the plurality of guide slots 36 so that it can be positioned in any of the plurality of guide slots 36.

[0196] Figure 6 A top plan view of an embodiment of a revision joint surgical apparatus 10A is depicted showing an assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate. As previously described, the guide block is made of two half sections 22 and 24 that are held together using hexagon socket head screws and alignment pins (see below). Figure 23 ). The L-shaped osteotome blade guide plate has an upper portion 26 and a lower portion 38. The upper guide plate portion includes an adjustable guide plate retaining screw slot 28 in which an adjustable guide plate retaining screw 30 is threaded into a threaded hole (not shown here) and into the guide block assembly 20. A plurality of front blade guide slots 36 for receiving the adjustable guide plate 38 and osteotome blade (not shown, see below) and a central cavity 40 are integral to the guide block assembly 20. The central cavity 40 is configured to receive a trunnion fastening member 44 (at Figure 14 4 and 5. The guide block 20 is assembled and secured with a plurality of rear blade guide slots. In front of these guide blade slots 32 are threaded holes 34 that receive T-handles or eyebolts (not shown) (see FIG. Figure 23 ). In this way, the guide block can be adjusted for any size femoral stem implant encountered during revision surgery to be removed. The various adjustments are described in more detail below.

[0197] Figure 7 A side elevational view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted, showing the assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 26 and a lower section 38, the same parts of which are included in the drawing. This view better illustrates the lower guide plate 38 extending downwardly from the guide block assembly 20.

[0198] Figure 8A bottom view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted, showing the assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 26 and lower section 38, the same components of which are included in this figure. This view better illustrates the upper guide plate retaining screw slot 28 and the rear blade guide slot 32 integral to the guide block assembly 20.

[0199] Figure 9 A top side elevation perspective view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing an assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 26 and lower section 38, the drawing including identical parts. In front of the guide blade slot 32 is a threaded hole 34 that receives a T-handle or eyebolt (not shown) (see FIG. Figure 23 ). This view better illustrates the lower guide plate 38 extending downwardly below the guide block assembly 20 and the trunnion fastening member 44 retaining nut 46.

[0200] Figure 10 A bottom rear view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted, showing the assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 26 and lower section 38, the same parts of which are included in the accompanying drawings. This view better illustrates the location of the centrally located cavity 40, the lower guide plate 38 extending downwardly below the guide block assembly 20, the central cavity 40, and the plurality of guide blade slots 36.

[0201] Figure 11 A top side elevation perspective view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing an assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 26 and a fully upwardly retracted lower section 38. This view better illustrates the adjustment slot 28 in the guide plate upper section 26, which allows the guide plate lower section 38 to be repositioned into a different slot within the plurality of guide slots 36. In this manner, the lower guide plate 38 can be positioned in any of the slots comprising the plurality of guide slots 36 and can therefore be adjusted forwardly (toward the femoral stem implant) and backwardly (away from the femoral stem implant) to accommodate different sized femoral stem implants to be removed during revision surgery.

[0202] Figure 12A side elevation view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing an assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 26 and a lower section 38, with the lower section guide plate 38 fully retracted upward. Here, the retaining screw 30 has been rotated to extend outward along the screw thread 42. The retaining washer 41 prevents the upper section guide plate 26 from falling back downward toward the guide block assembly 20. In this manner, the lower guide plate 38 can be adjusted upward away from the femoral stem implant and downward toward the femoral stem implant to accommodate different sizes of femoral stem implants to be removed during revision surgery.

[0203] Figure 13 A front view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing the assembled osteotome blade guide block 20 with the partially upwardly retracted adjustable L-shaped osteotome blade guide plates 26 and 38. The front view better illustrates the threaded portion 42 of the retaining screw 30.

[0204] Figure 14 Describes how Figure 13 A cross-sectional view of an alternative embodiment of the revision joint surgical apparatus 10A is shown in FIG, showing the assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade lower guide plate 38 and an upper guide plate section 26 that is fully retracted upward. Here, the threaded portion 42 of the guide plate retaining screw 30 is completely outward and the upper section guide plate 26 is being retained by the retaining washer 41. Likewise, the lower section guide plate 38 is in the forward most guide slot position within the plurality of guide slots 36. The cross-sectional view also clearly shows the central cavity 40, the trunnion fastening member 44 and the fastening nut 46, as well as the rear blade guide slot 32 and the portion for receiving the eyebolt (not shown, see FIG. Figures 23 to 30 ) threaded hole 34. This location is farthest from the medial side of the femur and will accommodate larger or collared femoral stem implants.

[0205] Figure 15 A cross-sectional view of an alternative embodiment of a revision joint surgical device 10A is depicted showing an assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 26 and a lower section 38 that extends completely downward and is positioned in a middle osteotome blade guide slot within the guide block. This view clearly shows that the lower section guide plate 38 has been moved and repositioned in a middle guide slot within the plurality of guide slots 36. This position is midway from the medial side of the femur and will accommodate medium-sized femoral stem implants.

[0206] Figure 16A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing the assembled treadmill blade guide block 20 having an adjustable L-shaped treadmill blade guide plate lower section 38 fully retracted upward and positioned in a middle treadmill blade guide slot within a plurality of guide slots 36 integral to the guide block assembly 700. The cross-sectional view also shows the retaining washer 41 that holds the upper section guide plate 26 in the raised position.

[0207] Figure 17 A cross-sectional view of an alternative embodiment of the joint revision surgical device 10A is depicted showing an assembled osteotome blade guide block 20 having an adjustable L-shaped osteotome blade guide plate upper section 706 and a lower section 38 that extends completely downward and is positioned in the osteotome blade guide slot closest to the central cavity 40 within the guide block. This view clearly shows that the lower section guide plate 38 has been moved and repositioned in the guide slot closest to the central cavity 40, and thus, the lower section guide plate is now positioned closest to the femoral stem implant to be removed during revision surgery. This position is closest to the medial side of the femur and will accommodate smaller femoral stem implants.

[0208] Figure 18 A cross-sectional view of an alternative embodiment of the revision joint surgical apparatus 10A is depicted showing the assembled treadmill blade guide block 20 having an adjustable L-shaped treadmill blade guide plate lower section 38 fully retracted upward and positioned in a middle treadmill blade guide slot within the plurality of guide slots 36 integral to the guide block assembly 20. The cross-sectional view also shows a retaining washer 41 that holds the upper section guide plate 26 in a high position. This position, closest to the medial side of the femur but fully retracted upward, will accommodate small to medium-sized femoral stem implants.

[0209] Figure 19 A side elevation view of a shank trunnion fastener 80 is depicted having a threaded portion 82 and a recess 84 extending the length of the threaded portion 82. The shank trunnion fastener 80 is conical in shape and tapers from a large diameter to a small diameter toward the threaded portion 82. The recess 84 serves to orient the shank trunnion fastener 80 within the central cavity 40 of the assembly 20 and, when installed therein, prevents the shank trunnion fastener 80 from rotating during a revision surgical procedure.

[0210] Figure 20 Describes how Figure 19A cross-sectional view of a shank trunnion fastener 80 is shown. The shank trunnion fastener 80 has a partially hollow body 88 having a ribbed inner portion 86 that extends approximately halfway from a major diameter to a minor diameter proximal to the threaded portion 82. Within the outer body 88 of the shank trunnion fastener 80 is the ribbed inner portion 86 having a plurality of circular ribs 90 thereon. The ribbed inner portion 86 is slidably attached to the outer body. The ribbed inner portion 90 within the hollow section 86 also has an external groove (not shown, see below). Figure 101 When the nut 46 is placed on the threaded portion 82 and tightened, this causes the ribbed inner portion 86 to move upward within the outer body 88 of the shank trunnion fastener 80 and tighten the shank trunnion fastener 80 around the shank trunnion 132 by reducing the overall diameter of the ribbed inner portion 86 (see FIG. Figure 24 ). See below for further description of this operation.

[0211] Figure 21 A bottom view of the shank trunnion fastener 80 is depicted, showing the outer body 88 and the ribbed inner portion 90 within the hollow section 86. Four grooves 92, 94, 96, and 98 are positioned 90 degrees from one another around the ribbed inner portion 86. In operation, the shank trunnion fastener 80 is placed on the shank trunnion 132, and the plurality of circular ribs 90 contact the upper section of the shank trunnion 132. When the nut 46 is placed on the threaded portion 82 and tightened, this causes the ribbed inner portion to move upward in the outer body 88 and tighten the shank trunnion fastener 80 around the shank trunnion 132 by reducing the overall diameter of the ribbed inner portion 86 around the shank trunnion. The four grooves 92, 94, 96, and 98 clamp together, and the groove gap distance decreases as the nut 46 is tightened and the ribbed inner portion 86 moves relative to the outer body 88. This effectively clamps the shank trunnion fastener 80 tightly and securely to the shank trunnion 132. Once tightened, the shank trunnion 80 cannot be released from the shank trunnion fastener 80 until the nut 46 is loosened and the diameter of the ribbed inner portion 86 increases to its original size. A standard wrench (such as a 10 mm box end wrench) can be used to tighten and loosen the nut 46.

[0212] Figure 22A side perspective view of the shank trunnion fastener 80 is depicted, showing a threaded portion 82 having a groove 84 therein, and a ribbed inner portion 86 having four grooves therein, one of which 94 is labeled with a reference numeral. It is envisioned that different sized shank trunnion fasteners 80 will be available to accommodate different sized shank trunnions to be removed. The different sized shank trunnion fasteners 80 will be easily installed by placing the shank trunnion fastener 80 into the central cavity 40 and then tightening it in place using the nut 46. In this manner, the shank trunnion fastener 80 will also be replaceable and reusable because, after the shank is removed, the shank trunnion 132 is released when the nut 46 is loosened.

[0213] Figure 23 An exploded view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing a disassembled treadmill blade guide block assembly 20 having adjustable L-shaped treadmill blade guide plates 26 and 38 and illustrating its use during revision surgery 100 relative to the medial treadmill blade 116 and the posterior treadmill blade 122 prior to insertion into the anterior treadmill blade guide slot 36 and the posterior treadmill blade guide slot 32 within the guide block assembly 20, as well as its relative position relative to the femoral stem implant 130 and the femoral stem implant trunnion portion 132. Assembly of the two half sections 22 and 24 is accomplished using hexagon socket head cap screws 52, 54, 56, and 58 and alignment pins 60 and 62. Also shown is an eyebolt 50 and an internally threaded hole 34 for receiving the externally threaded eyebolt 50. The medial calcar blade 116 includes a blade shaft 114 that is attached to a handle adapter 112 that allows for fastening to the handle 110. The posterior blade 122 includes a blade shaft 120.

[0214] Figure 24A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing an assembled treadmill blade guide block 20 having an adjustable L-shaped treadmill blade guide plate being used during revision surgery 100, showing treadmill blades 116 and 122 inserted into the front treadmill blade guide slot 36 and the rear treadmill blade guide slot 32 within the assembled guide block 20 for removing a collarless implant femoral stem 130. Note that the guide plate lower section 38 has been inserted into the farthest guide slot (away from the femoral stem implant) within the plurality of guide slots 36. Also, note that the guide plate adjustment screw 30 is fully threaded into the guide block such that the guide plate lower section 38 is farthest from the femoral stem implant to be removed. The trunnion fastening member 44 is securely fastened to the trunnion portion 132 of the stem 130. The posterior blade shaft 120 and cutting blade 122 extend downwardly through the posterior guide slot 32 and cut the posterior portion of the collarless implant femoral stem 130. The medial femoral blade 116 advances downwardly through the plurality of guide slots 36 and is guided by the position of the guide plate lower section 38. The blade 116 contacts the collarless implant femoral stem 130. Figure 24 1 to 4 of a revision surgical procedure for removing a femoral stem implant are shown, namely, Step 1: Adjusting the guide plate height and slot position for the type and size of the femoral stem implant to be removed; Step 2: Fastening the trunnion portion 132 to the trunnion fastening member 44; Step 3: Inserting the posterior cutting blade through the posterior blade guide slot 32; Step 4: After all adjustments have been made to the guide plate and the posterior or posterior cutting blade 122 has been inserted, then beginning to insert the medial calcar blade 116. In this manner, the correct and appropriate adjustments have been made to accommodate the size and shape of the femoral stem implant 130 to be removed using the guide block assembly 20 of the revision arthroplasty device 10A during subsequent steps of the revision surgical procedure.

[0215] Figure 25 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing the assembled treadmill blade guide block 20 with adjustable L-shaped treadmill blade guide plates 26 and 38 being used during a revision surgery 100, showing treadmill blades 116 and 122 inserted into the anterior treadmill blade guide slot 36 and the posterior treadmill blade guide slot 32 within the assembled guide block 20 for removing a collarless implant femoral stem. Figure 25 Step 5 of the revision surgical procedure for removing a femoral stem implant is shown, namely, Step 5: Inserting the medial calcar cutting blade 116 until it contacts the femoral stem implant 130 to be removed.

[0216] Figure 26A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing the assembled treadmill blade guide block 20 with adjustable L-shaped treadmill blade guide plates 26 and 38 being used during a revision surgery 100, showing treadmill blades 116 and 122 inserted into the anterior treadmill blade guide slot 36 and the posterior treadmill blade guide slot 32 within the assembled guide block 700 for removing a collarless implant femoral stem. Figure 26 Step 6 of the revision surgical procedure for removing a collarless femoral stem implant 130 is shown, i.e., Step 6: Continue to depress and move the medial calcar cutting blade 116 until it advances past the initial point of contact with the femoral stem implant 130 to be removed and begins to separate the femoral stem implant from the femur. Figure 26 , note that the L-shaped guide plates 26 and 38 are positioned in the guide slots farthest from the femoral stem implant 130. Also note that the guide plate lower section 38 is secured at its lowest point that is closest to the femoral stem implant 130 that is to be removed during revision surgery.

[0217] Figure 27 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing the assembled treadmill blade guide block 20 with adjustable L-shaped treadmill blade guide plates 26 and 38 being used during a revision surgery 100, showing treadmill blades 116 and 122 inserted into the anterior treadmill blade guide slot 36 and the posterior treadmill blade guide slot 32 within the assembled guide block 20 for removing a collarless implant femoral stem. Figure 27 Also shown is step 6 of the revision surgical procedure for removing the femoral stem implant 130, i.e., step 6: continuing to depress and move the medial calcar cutting blade 116 until it advances past the initial point of contact with the femoral stem implant 130 to be removed and begins to cut the femoral stem implant away from the femur. Figure 27 , note that the L-shaped guide plates 26 and 38 are positioned in the guide slots closest to the collarless femoral stem implant 130. Also note that the guide plate lower section 38 is secured in a slightly elevated position relative to its lowest point, further from the collarless femoral stem implant 130 to be removed during revision surgery.

[0218] Figure 28A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing the assembled treadmill blade guide block 20 with adjustable L-shaped treadmill blade guide plates 26 and 38 being used during a revision surgery 100, showing treadmill blades 116 and 122 inserted into the anterior treadmill blade guide slot 36 and the posterior treadmill blade guide slot 32 within the assembled guide block 20 for removing a collarless implant femoral stem. Figure 28 Also shown is step 6 of the revision surgical procedure for removing the femoral stem implant 130, i.e., step 6: continuing to depress and move the medial calcar cutting blade 116 until it advances past the initial point of contact with the femoral stem implant 130 to be removed and begins to cut the femoral stem implant away from the femur. Figure 28 , note that the L-shaped guide plates 26 and 38 are positioned in the guide slots closest to the femoral stem implant 130. This view better illustrates the retention washer 41, which is used to hold the guide plate upper section 26 high when the adjustment plate retaining screw 30 is raised. Also note that the guide plate lower section 38 is secured in a more elevated position relative to its lowest point, further from the femoral stem implant 130 to be removed during revision surgery.

[0219] Figure 29 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing the assembled treadmill blade guide block 20 with adjustable L-shaped treadmill blade guide plates 26 and 38 being used during a revision surgery 140, showing treadmill blades 116 and 122 inserted into the anterior and posterior treadmill blade guide slots 36 and 32 within the assembled guide block 20 for removal of a collared implant femoral stem 142 including a collar 146. The femoral stem trunnion section 144 has been secured to the trunnion securing member 44. Figure 29 Step 5 of the revision surgical procedure for removing a collared femoral stem implant is shown, namely, Step 5: Inserting the medial calcar cutting blade 116 until it makes initial contact with the collared femoral stem implant 140 to be removed, thereby bypassing the collar 146 on the collared stem 142. Figure 29, note that the L-shaped guide plates 26 and 38 are positioned within a guide slot in the middle section of the plurality of guide slots 26, a mid-range distance from the collared femoral stem implant 142. Note also that the adjustment plate retaining screw 30 is slightly raised, thereby allowing the guide plate lower section 38 to guide the cutting blade 116 under the collar 146 on the collared stem 142. This view better illustrates the retaining washer 41, which is used to hold the guide plate upper section 26 up when the adjustment plate retaining screw 30 is raised. Note also that the guide plate lower section 38 is secured in a more elevated position relative to its lowest point, further from the collared femoral stem implant 142 to be removed during revision surgery.

[0220] Figure 30 A cross-sectional view of an alternative embodiment of a revision joint surgical apparatus 10A is depicted showing the assembled treadmill blade guide block 20 with adjustable L-shaped treadmill blade guide plates 26 and 38 being used during a revision surgery 140, showing treadmill blades 116 and 122 inserted into the anterior and posterior treadmill blade guide slots 36 and 32 within the assembled guide block 20 for removal of a collared implant femoral stem 142. The collared femoral stem trunnion section 144 has been secured to the trunnion securing member 44. Figure 30 Also shown is step 6 of the revision surgical procedure for removing the collared femoral stem implant 142, i.e., step 6: continuing to depress and move the medial calcar cutting blade 116 until it advances past the initial point of contact with the collared femoral stem implant 142 to be removed and begins to cut the collared femoral stem implant 142 away from the femur. Figure 30 , it is noted that the L-shaped guide plates 26 and 38 are positioned in the guide slots closest to the collared femoral stem implant 142. It is noted that the guide plate lower section 38 is secured at a more elevated position relative to its lowest point, further away from the collared femoral stem implant 142 to be removed during revision surgery. This allows the guide plate 38 to guide the cutting blade 116 downward past the collar 146 on the collared stem 142. These two aforementioned two-way distance adjustments allow the guide block 20 to be used with different sized collared femoral stem implants (such as in this embodiment). Figure 29 and Figure 30 shown) and collarless femoral stem implants (as previously Figures 24 to 28 shown).

[0221] Figure 31 A top view of a heavy duty composite curved prosthetic blade 148 having a curved tip 150 and a metal end cap 152 is depicted.

[0222] Figure 32 Describes how Figure 31A side view of a heavy duty composite curved prosthetic blade 148 having a curved tip 150 and a metal end cap 152 is shown.

[0223] Figure 33 A top view of a low profile composite curved prosthetic blade 156 having a curved pointed end 158 and a metal end cap 154 ​​is depicted.

[0224] Figure 34 Describes how Figure 33 A side view of a thin composite curved prosthetic blade 156 having a curved pointed end 158 and a metal end cap 154 ​​is shown.

[0225] Figure 35 A top view of a straight narrow flat blade 162 having an osteotome-shaped tip 164 and a metal end cap 160 is depicted.

[0226] Figure 36 A top view of a straight, wide, flat blade 168 having a triangular tip 170 and a metal end cap 166 is depicted.

[0227] Figure 37 A side view of a thin, compound curved prosthetic blade 176 having a compound curved pointed cutting edge 178 with a straight handle 174 and a metal end cap 172 is depicted.

[0228] Figure 38 A side view of a thin, compound curved prosthetic blade 184 having a two-part handle 180 is depicted, and a metal end cap 182 is here enclosed within the two-part handle 180. The thin, compound curved prosthetic blade 184 has a compound curved pointed cutting edge 186.

[0229] Figure 39 A top, side elevation perspective view of a surgical slide hammer assembly 200 that can be attached to an assembled scalpel blade guide block (not shown) is depicted. The slide hammer assembly 200 includes a slide hammer handle 202 having an upper slide hammer handle surface 204 and a lower slide hammer handle surface 206. The slide hammer handle 202 moves up and down on a handle shaft having a lower slide hammer handle shaft section 208 and an upper slide hammer handle shaft section 210. A threaded attachment member nut 214 is located at the end of the lower slide hammer handle shaft section 208, and the diameter of the threaded attachment member nut 214 is wider than the diameter of the lower slide hammer handle shaft section 208. Similarly, a slide hammer impact cap 212 is located at the top of the upper slide hammer handle shaft section 210. The diameter of the slide hammer impact cap 212 is also wider than the diameter of the upper slide hammer handle shaft section 210.

[0230] Figure 40Depicted is a top plan view of a surgical slide hammer assembly 200 that can be attached to an assembled scalpel blade guide block (not shown). In this top plan view of the slide hammer assembly 200, the slide hammer handle 202 and the slide hammer impact cap 212 can be seen.

[0231] Figure 41 Depicted is a side elevation view of a surgical slide hammer assembly 200 that can be attached to an assembled scalpel blade guide block (not shown). In this top plan view of the slide hammer assembly 200, the slide hammer handle 202 and the slide hammer threaded attachment member nut 214 can be seen.

[0232] Figure 42 A bottom view of a surgical slide hammer assembly 200, which can be attached to an assembled scalpel blade guide block (not shown), is depicted. The slide hammer assembly 200 includes a slide hammer handle 202 having an upper slide hammer handle surface 204 and a lower slide hammer handle surface 206. The slide hammer handle 202 moves up and down on a handle shaft having a lower slide hammer handle shaft section 208 and an upper slide hammer handle shaft section 210. A threaded attachment member nut 214 is located at the end of the lower slide hammer handle shaft section 208, and the diameter of the threaded attachment member nut 214 is wider than the diameter of the lower slide hammer handle shaft section 208. Similarly, a slide hammer impact cap 212 is located at the top of the upper slide hammer handle shaft section 210. The diameter of the slide hammer impact cap 212 is also wider than the diameter of the upper slide hammer handle shaft section 210.

[0233] Figure 43 Describes how Figure 41 A surgical slide hammer assembly 200, which can be attached to an assembled scalpel blade guide block, is shown in a rotated side elevational view after being rotated 90 degrees. Similarly, the slide hammer assembly 200 includes a slide hammer handle 202 having an upper slide hammer handle surface 204 and a lower slide hammer handle surface 206. The slide hammer handle 202 moves up and down on a handle shaft having a lower slide hammer handle shaft section 208 and an upper slide hammer handle shaft section 210. A threaded attachment member nut 214 is located at the end of the lower slide hammer handle shaft section 208, and the diameter of the threaded attachment member nut 214 is wider than the diameter of the lower slide hammer handle section 208. Similarly, a slide hammer impact cap 212 is located at the top of the upper slide hammer handle shaft section 210. The diameter of the slide hammer impact cap 212 is also wider than the diameter of the upper slide hammer handle shaft section 210.

[0234] Figure 44 A top side elevation perspective view of a surgical slide hammer assembly 200 attachable to an assembled osteotome blade guide block is depicted, shown here in position attached to the assembled osteotome blade guide block 20. An externally threaded attachment member nut 214 is threaded into an internally threaded hole 34 located on the top surface of the assembled osteotome blade guide block 20 (see FIG. Figure 47 ).

[0235] Figure 45 A side elevation view of a surgical slide hammer assembly 200 that can be attached to an assembled osteotome blade guide block is depicted, shown here in position attached to the assembled osteotome blade guide block 20. An externally threaded attachment member nut 214 is threaded into an internally threaded hole 34 located on the top surface of the assembled osteotome blade guide block 20. In operation, the externally threaded attachment member 214 is threaded into the internally threaded hole 34 of the guide block 20, and the handle is then moved upward (see motion arrow) to strike the slide hammer impact cap 212 to remove the implant 130 attached to the guide block assembly 20.

[0236] Figure 46 A rear view of a surgical slide hammer assembly 200 that can be attached to an assembled osteotome blade guide block is depicted, shown here with the surgical slide hammer assembly in position attached to the assembled osteotome blade guide block 20. An externally threaded attachment member nut 214 is threaded into an internally threaded hole 34 located on the top surface of the assembled osteotome blade guide block 20. In operation, the externally threaded attachment member 214 is threaded into the internally threaded hole 34 of the guide block 20, and then the handle is moved upward to strike the slide hammer impact cap 212 to remove the implant 130 attached to the guide block assembly 20.

[0237] Figure 47 Depicts Figure 46 1 is a cross-sectional view of a surgical slide hammer assembly 200 that can be attached to an assembled osteotome blade guide block 20, shown here in position attached to the assembled osteotome blade guide block 20. In this cross-sectional view, the externally threaded attachment member nut 214 is clearly shown threaded into the internally threaded hole 34 located on the top surface of the assembled osteotome blade guide block 20. Once attached, the slide hammer handle 202 slides upward to impact the end cap 212, and the momentum pulls the guide block 20 and the stem trunnion fastening member 44 attached to the implant 130 upward and out of the femur during revision surgery.

[0238] Figure 48 A bottom view of a surgical slide hammer assembly 200 attachable to an assembled osteotome blade guide block 20 is depicted, shown here in position attached to the assembled osteotome blade guide block 20. This bottom view shows more detail of the slide hammer handle 202 and the guide block 20 having the guide plate upper and lower sections 26, 38, and the rear guide slot 32.

[0239] Figure 49A top side elevation perspective view of a surgical slide hammer assembly 200 attachable to an assembled osteotome blade guide block 20 is depicted, shown here in position attached to the assembled osteotome blade guide block 20. This view more clearly illustrates the slide hammer handle 202 and impact end cap 212, as well as further details of the guide block 20, showing the attached slide hammer threaded nut 214 and trunnion fastening member 44, and the guide plate lower section 38.

[0240] Figure 50 A top plan view of a surgical slide hammer assembly 200 attachable to an assembled osteotome blade guide block 20 is depicted, shown here in position attached to the assembled osteotome blade guide block 20. This top plan view more clearly illustrates the slide hammer handle 202 and the impact end cap 212, as well as further details of the guide block 20, showing the adjustment screw 30 and the trunnion fastening member 44.

[0241] Figure 51 A side elevation view of a surgical slide hammer assembly 200 that can be attached to an assembled osteotome blade guide block 20 is depicted, shown here in position attached to the assembled osteotome blade guide block 20. This view more clearly shows the slide hammer handle 202 and impact end cap 212, as well as further details of the guide block 20, showing the attached slide hammer threaded nut 214 and trunnion fastening member 44, and the guide plate lower section 38. In operation, the externally threaded attachment member 214 is threaded into the internally threaded hole 34 of the guide block 20, and the handle is then moved upward (see motion arrows) to strike the slide hammer impact cap 212 to remove the implant 130 attached to the guide block assembly 20. Thus, once attached, the slide hammer handle 202 slides upward to impact the end cap 212, and the momentum pulls the guide block 20 and the handle trunnion fastening member 44 attached to the implant 130 upward and out of the femur during revision surgery.

[0242] Figure 52 A top side elevation perspective view of a surgical blade locking osteotome handle assembly 220 is depicted with a surgical osteotome blade 238 inserted therein and showing a locking rod 230 in an outward locked or open position, which secures the surgical osteotome blade therein in the open position. The surgical blade locking osteotome handle assembly 220 includes a handle 222 having an impact lower end 224 and a two-part locking chamber consisting of a lower locking chamber 226 and an upper locking chamber 228. The locking chamber houses a locking rod 230 that is inserted into a locking rod slot 232. The locking chamber sections 226 and 228 are secured to the handle using two retaining screws 234 and 236. In the Figure 52In the embodiment shown in FIG. 2 , a bone scalpel blade 238 having a cutting edge 240 is inserted into the locking handle assembly 220 and the locking lever 230 is in the outward locked position, which secures the surgical bone scalpel blade therein in the open position. To unlock the bone scalpel blade 238 in the locking chambers 226 and 228, the locking lever 230 is pushed inward into the closed or unlocked position, thereby allowing the bone scalpel blade 238 to be inserted or removed (see FIG. 2 ). Figures 54 to 58 ).

[0243] Figure 53 A bottom side elevation perspective view of a surgical blade locking osteotome handle assembly 220 is depicted with a surgical osteotome blade 238 inserted therein and showing the locking rod 230 in an outward locked or open position, which secures the surgical osteotome blade therein in the open position. The surgical blade locking osteotome handle assembly 220 includes a handle 222 having an impact lower end 224 and a two-part locking chamber consisting of a lower locking chamber 226 and an upper locking chamber 228. The locking chamber houses a locking rod 230 that is inserted into a locking rod slot 232. The locking chamber sections 226 and 228 are secured to the handle using two retaining screws 234 and 236. In the Figure 53 In the embodiment shown in FIG. 2 , a bone scalpel blade 238 having a cutting edge 240 is inserted into the locking handle assembly 220, and the locking lever 230 is in the outwardly open or locked position, thereby allowing the bone scalpel blade 238 to be secured within the handle. To unlock the bone scalpel blade 238 from the locking chambers 226 and 228, the locking lever 230 is pushed inwardly, which releases the surgical bone scalpel blade (see FIG. Figures 54 to 58 ). In this manner, various scalpel blades are easily removed and replaced within the handle 220 and then locked into place for use in various surgical procedures.

[0244] Figure 54 A top side elevation perspective view of the surgical blade locking osteotome handle assembly 220 with the surgical osteotome blade 238 inserted therein is depicted, and the locking lever 230 is shown in an inwardly pushed unlocked position, which allows insertion and removal of the surgical osteotome blade. Here, as shown, the locking lever 230 has been pushed into the locking lever slot 232. In this manner, the osteotome blade 238 is unlocked within the handle 222 for subsequent insertion and removal of the osteotome blade as needed for a surgical procedure.

[0245] Figure 55A top, side elevation, exploded view of a surgical blade locking osteotome handle assembly 220 is depicted with a surgical osteotome blade 238 inserted therein, and the locking lever 230 is shown in an inwardly pushed, unlocked position, which allows insertion and removal of the surgical osteotome blade. The exploded view illustrates the inner workings of the locking handle 220. The two locking chamber portions 226 and 228 house the locking lever 230 and a locking lever spring 244, which is seated in a locking lever spring recess 248 machined into and integral to the lower chamber half 228. The locking lever 230 includes a frame defining a central opening that, when assembled, presses against the locking lever spring 244. The handle 222 has an upper surface 252, a mounting post 250, and retaining screw holes 254 and 256. The mounting post includes a plurality of recesses 258 that allow the osteotome blade to be inserted and locked in place by the locking lever 230 when the locking lever 230 is in the outward, open position (fully ejected). In operation, the osteotome blade 238 includes locking slots 242 that are securely locked in place by the locking lever 230 when the locking lever 230 is in the outward position or fully ejected from the locking slot 232 formed by the two-part locking chambers 226 and 228. The locking lever 230 is under pressure from a locking lever spring 244 and is maintained in the outward, locked position when used by the surgeon due to the pressure exerted by the locking lever spring 244.

[0246] Figure 56A perspective exploded view, viewed from above and from the side, of a surgical blade locking osteotome handle assembly with a scalpel blade inserted therein is depicted, with the locking lever 230 shown in an inwardly pushed, unlocked position, which allows insertion and removal of the scalpel blade. This exploded view also details the inner workings of the locking handle 220. The two locking chamber portions 226 and 228 house the locking lever 230 and a locking lever spring 244, which resides in a locking lever spring recess 248 machined into and integral to the lower chamber half 228. The locking lever 230 includes a frame defining a central opening that, when assembled, rests against the locking lever spring 244. The handle 222 has an upper surface 252, a mounting post 250, and retaining screw holes 254 and 256. The mounting post includes a plurality of recesses 258 that allow the osteotome blade to be inserted and locked in place by the locking lever 230 when the locking lever 230 is in the outwardly opened position (fully ejected). In operation, the osteotome blade 238 includes locking slots 242 that are securely locked in place by the locking lever 230 when the locking lever 230 is in the outward position or fully ejected from the locking slot 232 formed by the two-part locking chambers 226 and 228. The locking lever 230 is under pressure from a locking lever spring 244 and is maintained in the outward locked position when used by the surgeon due to the pressure exerted by the locking lever spring 244.

[0247] Figure 57 A front view of the surgical blade locking osteotome handle assembly 220 is depicted with a surgical osteotome blade 238 inserted therein, and the locking lever (not visible in this view) is shown in an inwardly pushed or unlocked position (not shown), which will allow insertion and removal of the surgical osteotome blade.

[0248] Figure 58 A side elevation view of the scalpel blade locking osteotome handle assembly 220 with a scalpel blade 238 inserted therein is depicted, and the locking bar 230 is shown in an inwardly pushed, unlocked position, which allows the insertion and removal of the scalpel blade. In operation, the locking bar 230 will be pushed in, the blade will be removed and / or inserted, and then the locking bar spring 244 pressure will allow the locking bar 230 to automatically return to the locked or outward position. In this way, the scalpel blade 238 is locked in its normal locked configuration within the handle 222 (locking bar fully ejected), and then the locking bar 230 is pushed inward to unlock the scalpel blade so that the scalpel blade can be subsequently inserted and removed for use in a surgical procedure as needed. Thus, the scalpel blade can be easily removed and replaced using the scalpel blade locking osteotome handle assembly 220, depending on the stage of the surgical procedure or the needs of the surgeon during the surgical procedure.

[0249] Figure 59A top plan view of a surgical blade locking osteotome handle assembly 220 is depicted with a surgical osteotome blade 240 inserted therein, and illustrating the locking lever 230 in either an open or locked position. In this view, the retaining screws 234 and 236, as well as the mounting post 250 and the locking lever 230 in the open position are clearly shown.

[0250] Figure 60 A bottom view of a surgical blade locking osteotome handle assembly 220 is depicted with a surgical osteotome blade (not visible here) inserted therein. In this view, the handle 222 impact base 224 is clearly shown. In operation, the handle 222 can be used to insert the surgical osteotome blade to cut bone, and when the bone is difficult to cut, the impact end 224 can be manually hammered by hand or by using a surgical hammer to allow the surgeon to cut the bone more easily and quickly.

[0251] Figure 61 A front view of the surgical blade locking osteotome handle assembly 220 is depicted with the surgical blade 238 inserted therein.

[0252] Figure 62 Describes how Figure 61 The cross-sectional view of the surgical blade locking osteotome handle assembly 220 with the surgical osteotome blade 238 inserted therein is shown.In this cross-sectional view, visible mounting post 250, lower locking chamber half 226 and upper locking chamber half 228 are assembled on the mounting post.These two halves 226 and 228 define a groove, in which a locking rod spring 244 is located.Locking rod 230 is shown in the figure, and locking rod spring 244 forces locking rod to be in open or locked position.When locking rod 230 is open or in locked position, locking rod 230 locks the blade end into the handle (as described below) by contacting the groove in the surgical blade locking plate.

[0253] Figure 63 A top view of the surgical blade locking osteotome handle assembly 220 is depicted with the surgical osteotome blade 238 inserted therein, and the locking lever 230 is shown in an inwardly pushed or unlocked position. When the locking lever 230 is in this pushed or unlocked position, insertion and removal of the surgical osteotome blade 238 is facilitated. This view is similar to Figure 59 The view in FIG. 1 shows the Figure 59 The part shown (see Figure 59 ) similar parts.

[0254] Figure 64 A front view of the surgical blade locking osteotome handle assembly 220 is depicted with the surgical osteotome blade 238 inserted therein, and the locking lever 230 is shown in an inwardly pushed or unlocked position. When the locking lever 230 is in this pushed or unlocked position, insertion and removal of the surgical osteotome blade 238 is facilitated. This view is similar to Figure 61 The view in FIG. 1 shows the Figure 61 The part shown (see Figure 61 ) similar parts.

[0255] Figure 65 A bottom view of the surgical blade locking osteotome handle assembly 220 is depicted with the surgical osteotome blade 238 inserted therein, and the locking lever 230 is shown in an inwardly pushed or unlocked position. When the locking lever 230 is in this pushed or unlocked position, insertion and removal of the surgical osteotome blade 238 is facilitated. This view is similar to Figure 60 The view in FIG. 1 shows the Figure 60 The part shown (see Figure 60 ) similar parts.

[0256] Figure 66 A side elevation view of the surgical blade locking osteotome handle assembly 220 is depicted with the surgical osteotome blade 238 inserted therein, and the locking lever 230 is shown in an inwardly pushed or unlocked position. When the locking lever 230 is in this pushed or unlocked position, insertion and removal of the surgical osteotome blade 238 is facilitated. This view is similar to Figure 58 but in the opposite orientation and showing the same Figure 58 The part shown (see Figure 58 ) similar parts.

[0257] Figure 67 A rear view of the surgical blade locking osteotome handle assembly 220 is depicted with the surgical blade locking osteotome handle assembly 220 having the surgical blade 238 inserted therein, shown here attached in position to the surgical blade guide block assembly 20. In this view, the surgical blade guide block assembly 20 is attached to the implant 130 and is being used to guide the osteotome blade 238 downwardly through the guide block rear guide slot (see FIG. Figure 68 ), in order to cut the shoulder section of the implant 130 away from the bone (not shown).

[0258] Figure 68 Describes how Figure 67A cross-sectional side elevation view of a surgical blade locking osteotome handle assembly 220 is shown with a scalpel blade 238 inserted therein, shown here with the scalpel blade locking osteotome handle assembly attached to the scalpel blade guide block assembly 20 in place. Recall that the scalpel blade guide block assembly 20 includes a lower guide plate 38, a guide plate adjustment screw 30, and a trunnion fastening member 44, which is securely held to the scalpel blade guide block assembly 20 by a nut 46. The plurality of rear guide slots 32 are also clearly visible. Based on the size of the implant 130, the surgeon selects a single slot within the plurality of rear guide slots 32 to extend the blade 238 downward, which has been secured to the handle 222, and the locking lever 230 is in the outward or locked position. In this manner, the lateral shoulder of the implant 130 is cut away from the bone (not shown) for release during a revision surgical procedure. The use of the osteotome blade 238 secured within the handle assembly 220, combined with extending the blade 238 downward through the guide slot to make the cut, makes the revision procedure very efficient and time-saving, resulting in significantly improved patient outcomes.

[0259] Figure 69 A top, side elevation perspective view of a flexible medial femoral calcar bone tome blade 260 having a scoop-shaped cutting edge 262 is depicted. The flexible medial femoral calcar bone tome blade 260 having a scoop-shaped cutting edge 262 also includes the following features: a blade shaft 264 and a blade insert plate 266 distal to the scoop-shaped cutting edge 262. The blade insert plate 266 is defined with one or more blade locking slots 268. These blade locking slots 268 allow the flexible medial femoral calcar bone tome blade 260 having a scoop-shaped cutting edge 262 to be securely locked into the surgical blade locking bone tome handle assembly 220 (see above for details). The scoop-shaped cutting edge 262 is both flexible and includes a uniquely designed curvature with a sharpened scoop-shaped cutting edge to more efficiently separate the medial femoral calcar implant surface from the bone. What is the difference between a surgical osteotome and an osteotome blade? An osteotome is an orthopedic instrument typically used to cut bone. Surgical osteotome is used for bone reshaping. Functionally, the main difference is that an osteotome has one beveled edge, while a bone cutter has two beveled edges. Additionally, the flexible medial femoral calcar osteotome blade 260 with a spoon-shaped cutting edge 262 can be configured as an osteotome blade with two beveled sharpened cutting edges, or as a surgical osteotome in which only one side of the sharpened cutting edge is beveled. Figure 69 , a flexible medial calcar bone tread blade 260 is shown having a scoop-shaped cutting edge 262 having an osteotome-style cutting edge beveled on only one side. It is envisioned that the same flexible medial calcar bone tread blade 260 having a scoop-shaped cutting edge 262 can be configured as a bone tread blade having sharpened cutting edges beveled on both sides.

[0260] Figure 70Described the front view of the flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262. The flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262 also includes the following features: a blade shaft 264 and a blade insert plate 266 distal to the spoon-shaped cutting edge 262. The blade insert plate 266 is defined with one or more blade locking grooves 268. These blade locking grooves 268 allow the flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262 to be securely locked into the surgical blade locking osteotome handle assembly 220 (see details above). The spoon-shaped cutting edge 262 is both flexible and also includes a unique curvature of design with a sharpened spoon-shaped cutting edge so that the femoral calcar medial implant surface and the bone are cut more efficiently.

[0261] Figure 71 Describes how Figure 70 The cross-sectional view of the flexible femoral calcaneus blade 260 with a spoon-shaped cutting edge 262 is shown. The flexible femoral calcaneus blade 260 with a spoon-shaped cutting edge 262 also includes the following features: a blade shaft 264 and a blade insert plate 266 distal to the spoon-shaped cutting edge 262. The blade insert plate 266 is defined with one or more blade locking grooves 268. These blade locking grooves 268 allow the flexible femoral calcaneus blade 260 with a spoon-shaped cutting edge 262 to be securely locked into the surgical blade locking bone cutter handle assembly 220 (see details above). The spoon-shaped cutting edge 262 is both flexible and also includes a unique curvature of design with a sharpened spoon-shaped cutting edge so that the femoral calcaneus implant surface and the bone are cut more efficiently.

[0262] Figure 72 A top plan view of a flexible medial calcar osteotome blade 260 having a scoop-shaped cutting edge 262 and a blade insert plate 266 is depicted.

[0263] Figure 73 A bottom view of a flexible medial calcar osteotome blade 260 having a scoop-shaped cutting edge 262 and a blade insert plate 266 is depicted.

[0264] Figure 74Described the rear view of the flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262. The flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262 also includes the following features: a blade shaft 264 and a blade insert plate 266 distal to the spoon-shaped cutting edge 262. The blade insert plate 266 is defined with one or more blade locking grooves 268. These blade locking grooves 268 allow the flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262 to be securely locked into the surgical blade locking osteotome handle assembly 220 (see details above). The spoon-shaped cutting edge 262 is both flexible and also includes a unique curvature of design with a sharpened spoon-shaped cutting edge so that the femoral calcar medial implant surface and the bone are cut more efficiently.

[0265] Figure 75 Described the left side elevation view of the flexible femoral calcaneus blade 260 inside with spoon-shaped cutting edge 262.The flexible femoral calcaneus blade 260 inside with spoon-shaped cutting edge 262 also comprises following features: blade shaft 264 and blade insert plate 266 at spoon-shaped cutting edge 262 distal ends.The blade insert plate 266 is defined with one or more blade locking grooves 268.These blade locking grooves 268 allow the flexible femoral calcaneus blade 260 inside with spoon-shaped cutting edge 262 to be locked firmly in the surgical blade locking bone cutter handle assembly 220 (referring to the details above).The spoon-shaped cutting edge 262 is both flexible, and also comprises the unique curvature of the design with sharpening spoon-shaped cutting edge, so that more efficiently the femoral calcaneus implant surface and bone are cut open.

[0266] Figure 76 Described the front view of the flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262. The flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262 also includes the following features: a blade shaft 264 and a blade insert plate 266 distal to the spoon-shaped cutting edge 262. The blade insert plate 266 is defined with one or more blade locking grooves 268. These blade locking grooves 268 allow the flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262 to be securely locked into the surgical blade locking osteotome handle assembly 220 (see details above). The spoon-shaped cutting edge 262 is both flexible and also includes a unique curvature of design with a sharpened spoon-shaped cutting edge so that the femoral calcar medial implant surface and the bone are cut more efficiently.

[0267] Figure 77 Depicted is a right side elevational view of a flexible medial calcar osteotome blade 260 having a spoon-shaped cutting edge 262, showing Figure 75The opposite side of the present invention. The flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262 also includes the following features: a blade shaft 264 and a blade insert plate 266 distal to the spoon-shaped cutting edge 262. The blade insert plate 266 is defined with one or more blade locking grooves 268. These blade locking grooves 268 allow the flexible femoral calcar medial osteotome blade 260 with a spoon-shaped cutting edge 262 to be securely locked into the surgical blade locking osteotome handle assembly 220 (see details above). The spoon-shaped cutting edge 262 is both flexible and also includes a unique curvature of design with a sharpened spoon-shaped cutting edge so that the femoral calcar medial implant surface and the bone are cut more efficiently.

[0268] Figure 78 Depicts the Figures 69 to 77 A bottom view of an elongated flexible medial calcaneal osteotome blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown compared to the flexible medial calcaneal osteotome blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264 .

[0269] Figure 79 Depicts the Figures 69 to 77 A top plan view of a flexible medial calcar bone tome blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown compared to the flexible medial calcar bone tome blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264.

[0270] Figure 80 Depicts the Figures 69 to 77A rear view of a flexible medial calcar bone tome blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown, compared to the flexible medial calcar bone tome blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264. The elongated flexible medial calcar bone tome blade 270 having the narrower scoop-shaped cutting edge 272 and the elongated blade shaft 274 also includes the following features: an elongated blade shaft 274 and a blade insert plate 276 distal to the narrower scoop-shaped cutting edge 272. The blade insert plate 276 has one or more blade locking slots 278 defined therein. These blade locking slots 278 allow the flexible medial calcar bone tome blade 270 having the scoop-shaped cutting edge 272 to be securely locked into the surgical blade locking bone tome handle assembly 220 (see details above). The narrower scoop shaped cutting edge 272 is both flexible and also includes a uniquely designed curved surface with a sharpened scoop shaped cutting edge to allow for more efficient cutting of the medial calcar implant surface from the bone. What is the difference between a surgical osteotome and a bone cutter blade? An osteotome is an orthopedic instrument typically used to cut bone. Surgical osteotome are used for bone reshaping. Functionally, the main difference is that an osteotome has one beveled edge, while a bone cutter has two beveled edges. Additionally, the flexible medial calcar osteotome blade 270 with the scoop shaped cutting edge 272 can be configured as a bone cutter blade having two beveled sharpened cutting edges, or as a surgical osteotome wherein only one side of the sharpened cutting edge is beveled. Here, in Figure 80 , a flexible medial calcar bone tread blade 270 is shown having a scoop-shaped cutting edge 272 having an osteotome-style cutting edge beveled on only one side. It is contemplated that the same flexible medial calcar bone tread blade 270 having a scoop-shaped cutting edge 272 can be configured as an osteotread blade having sharpened cutting edges beveled on both sides. Since the osteotread blade comprises a surgical osteotome, from this point on, the osteotread blade / surgical osteotome will be referred to simply as an osteotread blade.

[0271] Figure 81 Depicts the Figures 69 to 77 A left side elevation view of a flexible medial calcar osteotome blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown, compared to the flexible medial calcar osteotome blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264. The elongated flexible medial calcar osteotome blade 270 having the narrower scoop-shaped cutting edge 272 and the elongated blade shaft 274 further features the elongated blade shaft 274 and a blade insert plate 276 distal to the narrower scoop-shaped cutting edge 272. The blade insert plate 276 defines one or more blade locking slots 278 therein.

[0272] Figure 82 Depicts the Figures 69 to 77A front view of a flexible medial calcar osteotome blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown, compared to the flexible medial calcar osteotome blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264. The elongated flexible medial calcar osteotome blade 270 having the narrower scoop-shaped cutting edge 272 and the elongated blade shaft 274 further features the elongated blade shaft 274 and a blade insert plate 276 distal to the narrower scoop-shaped cutting edge 272. The blade insert plate 276 has one or more blade locking slots 278 defined therein.

[0273] Figure 83 Depicts the Figures 69 to 77 A right side elevational view of a flexible medial calcar osteotome blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown, compared to the flexible medial calcar osteotome blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264. The elongated flexible medial calcar osteotome blade 270 having the narrower scoop-shaped cutting edge 272 and the elongated blade shaft 274 further features the elongated blade shaft 274 and a blade insert plate 276 distal to the narrower scoop-shaped cutting edge 272. The blade insert plate 276 defines one or more blade locking slots 278 therein.

[0274] Figure 84 Depicts the Figures 69 to 77 A top side elevation perspective view of a flexible medial calcar bone tread blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown compared to the flexible medial calcar bone tread blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264. The elongated flexible medial calcar bone tread blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 also includes the same features as previously described. Figures 78 to 83 Parts similar to those shown.

[0275] Figure 85 Depicts the Figures 69 to 77 A front view of a flexible medial calcar bone tread blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown compared to the flexible medial calcar bone tread blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264. The elongated flexible medial calcar bone tread blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 also includes the same features as previously described. Figures 78 to 83 Parts similar to those shown.

[0276] Figure 86 Depicts the Figures 69 to 77A cross-sectional view of a flexible medial calcar bone tread blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 is shown compared to the flexible medial calcar bone tread blade 260 having a scoop-shaped cutting edge 262 and a shorter blade shaft 264. The elongated flexible medial calcar bone tread blade 270 having a narrower scoop-shaped cutting edge 272 and an elongated blade shaft 274 also includes the same features as previously described. Figures 78 to 83 A portion similar to the portion shown.

[0277] Figure 87 A top side elevation perspective view of a flexible medial calcar bone tread blade 280 having a forked cutting edge 282 is depicted. The flexible medial calcar bone tread blade 280 having a forked cutting edge 282 also includes the following features: a blade shaft 284 and a blade insert plate 286 distal to the forked cutting edge 282. One or more blade locking slots 288 are defined on the blade insert plate 286. These blade locking slots 288 allow the flexible medial calcar bone tread blade 280 having a forked cutting edge 282 to be securely locked into the surgical blade locking bone tread handle assembly 220 (see details above). What is the difference between a surgical osteotome and an osteotome blade? An osteotome is an orthopedic instrument typically used to cut bone. Surgical osteotome is used for bone reshaping. Functionally, the main difference is that an osteotome has one beveled edge, while a bone cutter has two beveled edges. Additionally, the flexible medial calcar bone cutter blade 2860 having a spoon-shaped cutting edge 282 can be configured as a bone cutter blade having two beveled sharpened cutting edges, or as a surgical osteotome in which only one side of the sharpened cutting edge is beveled. Figure 87 , a flexible medial calcar bone tread blade 280 is shown having a scoop-shaped cutting edge 282 having an osteotome-style cutting edge beveled on only one side. It is envisioned that the same flexible medial calcar bone tread blade 280 having a scoop-shaped cutting edge 282 can be configured as a bone tread blade having sharpened cutting edges beveled on both sides.

[0278] Figure 88 A front view of a flexible medial calcar bone tome blade 280 having a forked cutting edge 282 is depicted. The flexible medial calcar bone tome blade 280 having a forked cutting edge 282 further includes the following features: a blade shaft 284 and a blade insert plate 286 distal to the forked cutting edge 282. The blade insert plate 286 has one or more blade locking slots 288 defined therein. These blade locking slots 288 allow the flexible medial calcar bone tome blade 280 having a forked cutting edge 282 to be securely locked into the surgical blade locking bone tome handle assembly 220 (see above for details).

[0279] Figure 89 Describes how Figure 88The cross-sectional view of the flexible femoral calcaneus blade 280 with forked cutting edge 282 shown.The flexible femoral calcaneus blade 280 with forked cutting edge 282 also includes the following features: blade shaft 284 and a blade insert plate 286 distal to forked cutting edge 282. The blade insert plate 286 is defined with one or more blade locking grooves 288. These blade locking grooves 288 allow the flexible femoral calcaneus blade 280 with forked cutting edge 282 to be securely locked into the surgical blade locking bone cutter handle assembly 220 (see details above). The forked cutting edge 282 is both flexible and comprises a unique curvature of design with a sharpened forked cutting edge, so that the femoral calcaneus implant surface and the bone are cut significantly and more efficiently.

[0280] Figure 90 A top plan view of a flexible medial calcar osteotome blade 280 having a forked cutting edge 282 and a blade insert plate 286 is depicted.

[0281] Figure 91 A bottom view of a flexible medial calcar osteotome blade 280 having a forked cutting edge 282 and a blade insert plate 286 is depicted.

[0282] Figure 92 Describes how Figure 87 A rear view of the flexible medial femoral osteotome blade 280 having a forked cutting edge 282 is shown. The flexible medial femoral osteotome blade 280 having a forked cutting edge 282 also includes the following features: a blade shaft 284 and a blade insert plate 286 distal to the forked cutting edge 282. The blade insert plate 286 is defined with one or more blade locking slots 288. What is the difference between a surgical osteotome and a osteotome blade? An osteotome is an orthopedic instrument typically used for cutting bone. Surgical osteotome are used for bone reshaping. Functionally, the main difference is that an osteotome has one beveled edge, while a osteotome has two beveled edges. Additionally, the flexible medial femoral osteotome blade 280 having a forked cutting edge 282 can be configured as a osteotome blade having two beveled sharpened cutting edges, or as a surgical osteotome in which only one side of the sharpened cutting edge is beveled. Here, in Figure 92 , a flexible medial calcar bone tread blade 280 is shown having a forked cutting edge 282 having an osteotome-style cutting edge beveled on only one side. It is envisioned that the same flexible medial calcar bone tread blade 280 having a forked cutting edge 282 can be configured as a bone tread blade having sharpened cutting edges beveled on both sides.

[0283] Figure 93 Describes how Figure 87A left side elevation view of a flexible medial calcar bone tome blade 280 having a forked cutting edge 282 is shown. The flexible medial calcar bone tome blade 280 having a forked cutting edge 282 further includes the following features: a blade shaft 284 and a blade insert plate 286 distal to the forked cutting edge 282. The blade insert plate 286 has one or more blade locking slots 288 defined therein.

[0284] Figure 94 Describes how Figure 87 A front view of a flexible medial calcar bone tome blade 280 having a forked cutting edge 282 is shown. The flexible medial calcar bone tome blade 280 having a forked cutting edge 282 further includes the following features: a blade shaft 284 and a blade insert plate 286 distal to the forked cutting edge 282. The blade insert plate 286 has one or more blade locking slots 288 defined therein.

[0285] Figure 95 Describes how Figure 87 A right side elevation view of a flexible medial calcar bone tome blade 280 having a forked cutting edge 282 is shown. The flexible medial calcar bone tome blade 280 having a forked cutting edge 282 further includes the following features: a blade shaft 284 and a blade insert plate 286 distal to the forked cutting edge 282. The blade insert plate 286 has one or more blade locking slots 288 defined therein.

[0286] Figure 96 Depicts the Figures 87 to 95 A top side elevation perspective view of a flexible medial calcar bone tome blade 290 having a narrower forked cutting edge 292 and an elongated blade shaft 294 is shown, compared to the flexible medial calcar bone tome blade 280 having a forked cutting edge 282 and a shorter blade shaft 284. The elongated flexible medial calcar bone tome blade 290 having the narrower forked cutting edge 292 and the elongated blade shaft 294 also includes the following features: an elongated blade shaft 294 and a blade insert plate 296 distal to the narrower forked cutting edge 292. The blade insert plate 296 defines one or more blade locking slots 298. These blade locking slots 298 allow the elongated flexible medial calcar bone tome blade 290 having the narrower forked cutting edge 292 to be securely locked into the surgical blade locking bone tome handle assembly 220 (see details above). The narrower scoop-shaped cutting edge 292 is both flexible and includes a uniquely designed curved surface with a sharpened scoop-shaped cutting edge to more efficiently cut the medial calcar implant surface from the bone.

[0287] Figure 97A front view of a flexible medial calcar bone tome blade 290 having a narrow forked cutting edge 292 and an elongated blade shaft 294 is depicted. One or more blade locking slots 298 are defined on the blade insert plate 296. These blade locking slots 298 allow the elongated flexible medial calcar bone tome blade 290 having a narrower forked cutting edge 292 to be securely locked into the surgical blade locking bone tome handle assembly 220 (see above for details).

[0288] Figure 98 Describes how Figure 97 A cross-sectional view of a flexible medial calcar bone tome blade 290 is shown having a narrow forked cutting edge 292 and an elongated blade shaft 294. The flexible medial calcar bone tome blade 290 having a forked cutting edge 292 also includes the following features: a blade shaft 294 and a blade insert plate 296 distal to the forked cutting edge 292.

[0289] Figure 99 A top plan view of a flexible medial calcar osteotome blade 290 having a narrow forked cutting edge 292 and an elongated blade shaft 294 is depicted, and the positions of the narrow forked cutting edge 292 and blade insert plate 296 are shown.

[0290] Figure 100 A bottom view of a flexible medial calcar osteotome blade 290 having a narrow forked cutting edge 292 and an elongated blade shaft 294 is depicted, and the positions of the narrow forked cutting edge 292 and blade insert plate 296 are shown.

[0291] Figure 101 A rear view of a flexible medial calcar bone tome blade 290 having a narrow forked cutting edge 292 and an elongated blade shaft 294 is depicted, and the elongated blade shaft 294 is shown along with a blade insert plate 296 and one or more blade locking slots 298 therein. What is the difference between a surgical osteotome and a osteotome blade? An osteotome is an orthopedic instrument typically used for cutting bone. Surgical osteotome are used for bone reshaping. Functionally, the main difference is that an osteotome has one beveled edge, while a bone cutter has two beveled edges. Additionally, the flexible medial calcar bone tome blade 290 having a forked cutting edge 292 can be configured as an osteotome blade having two beveled sharpened cutting edges, or as a surgical osteotome in which only one side of the sharpened cutting edge is beveled. Here, in Figure 101 , a flexible medial calcar bone tread blade 290 is shown having a forked cutting edge 292 having an osteotome-style cutting edge beveled on only one side. It is contemplated that the same flexible medial calcar bone tread blade 290 having a forked cutting edge 292 can be configured as a bone tread blade having sharpened cutting edges beveled on both sides.

[0292] Figure 102A left side elevation view of a flexible medial calcar osteotome blade 290 having a narrow forked cutting edge 292 and an elongated blade shaft 294 is depicted, with the elongated blade shaft 294 and blade insert plate 296 shown.

[0293] Figure 103 Described the front view of the medial osteotome blade of flexible femur calcaneus with forked cutting edge and elongated blade shaft.Blade insert plate 286 is limited with one or more blade locking grooves 288.These blade locking grooves 288 allow the medial osteotome blade 280 of flexible femur calcaneus with forked cutting edge 282 to be locked firmly in the surgical blade locking osteotome handle assembly 220 (referring to the details above).Forked cutting edge 282 is both flexible, and comprises the unique curvature of the design with sharpening forked cutting edge again, so that significantly more efficiently the medial femur calcaneus implant surface and bone cutting are opened.

[0294] Figure 104 A right side elevation view of a flexible medial calcar osteotome blade 290 having a narrow, forked cutting edge 292 and an elongated blade shaft 294 is depicted, with the elongated blade shaft 294 and blade insert plate 296 shown.

[0295] Figure 105 A top plan view of a curved lateral shoulder release osteotome blade 300 is depicted, showing the curved cutting edge 302 and the flat blade insert plate 308 .

[0296] Figure 106 A bottom view of a curved lateral shoulder release osteotome blade 300 is depicted, showing the curved cutting edge 302 and the flat blade insert plate 308 .

[0297] Figure 107 A left side elevation view of a curved lateral shoulder release osteotome blade 300 is depicted, showing a curved cutting edge 302. Additional features of the curved lateral shoulder release osteotome blade 300 include a blade shaft 304 having a blade shaft narrow section 306 before reaching a blade insert plate 308.

[0298] Figure 108 A front view of a curved lateral shoulder release osteotome blade 300 is depicted, showing a curved cutting edge 302. Additional features of the curved lateral shoulder release osteotome blade 300 include a curved blade shaft 304 having a flat blade shaft narrow section 306 before reaching a flat blade insert plate 308. One or more blade locking slots 310 are located within the blade insert plate 308.

[0299] Figure 109A right side elevation view of a curved lateral shoulder release osteotome blade 300 is depicted, showing a curved cutting edge 302. Additional features of the curved lateral shoulder release osteotome blade 300 include a curved blade shaft 304 having a flat blade shaft narrow section 306 before reaching a flat blade insert plate 308.

[0300] Figure 110 A top side elevation perspective view of a curved lateral shoulder release osteotome blade 300 is depicted, showing a curved cutting edge 302. Additional features of the curved lateral shoulder release osteotome blade 300 include a curved blade shaft 304 having a flat blade shaft narrow section 306 before reaching a flat blade insert plate 308. One or more blade locking slots 310 are located within the blade insert plate 308.

[0301] Figure 111 A top side elevation perspective view of a curved lateral shoulder release osteotome blade 300 is depicted, showing a curved cutting edge 302. Additional features of the curved lateral shoulder release osteotome blade 300 include a curved blade shaft 304 having a flat blade shaft narrow section 306 before reaching a flat blade insert plate 308. One or more blade locking slots 310 are located within the flat blade insert plate 308.

[0302] Figure 112 A front view of a curved lateral shoulder release osteotome blade 300 is depicted, showing the curved cutting edge 302. Additional features of the curved lateral shoulder release osteotome blade 300 are clearly seen, including a curved blade shaft 304 having a flat blade shaft narrow section 306 before reaching a blade insert plate 308, and one or more blade locking slots 310 located within the flat blade insert plate 308.

[0303] Figure 113 Describes how Figure 112 A cross-sectional view of a curved lateral shoulder release osteotome blade 300 is shown, demonstrating the curved cutting edge 302. Additional features of the curved lateral shoulder release osteotome blade 300 are clearly seen, including a curved blade shaft 304 having a blade shaft narrow section 306 before reaching a blade insert plate 308.

[0304] Figure 114 Depicted is a top plan view of an alternative embodiment of a curved lateral shoulder release osteotome blade 320 having a protruding stop 326 feature on the curved blade shaft 324. In this view, the blade insert plate 328 is also clearly visible.

[0305] Figure 115Depicted is a bottom view of a curved lateral shoulder release osteotome blade 320 having a protruding stop 326 feature on the curved blade shaft 324. In this view, the blade insert plate 328 is also clearly visible.

[0306] Figure 116 A rear view of a curved lateral shoulder release osteotome blade 320 is depicted, which has a protruding stop 326 feature on the curved blade shaft 324. The protruding stop feature 326 is located approximately halfway along the curved blade shaft 324 between the cutting edge 322 and the blade insert plate 328. The curved blade shaft 324 also has a narrowed section above the blade insert plate 328. Additional features of the blade insert plate 328 include one or more blade locking slots 330 located within the blade insert plate 328. What is the difference between a surgical osteotome and an osteotome blade? An osteotome is an orthopedic instrument typically used to cut bone. Surgical osteotome is used for bone reshaping. Functionally, the main difference is that an osteotome has one beveled edge, while a bone cutter has two beveled edges. Additionally, the curved lateral shoulder release osteotome blade 320 having a protruding stop 326 feature on the curved blade shaft can be configured as an osteotome blade having two beveled sharpened cutting edges, or as a surgical osteotome in which only one side of the sharpened cutting edge is beveled. Figure 116 , a curved lateral shoulder release osteotome blade 320 is shown having a protruding stop 326 feature on the curved blade shaft 324, the osteotome blade having an osteotome-style cutting edge beveled on only one side. It is envisioned that the same curved lateral shoulder release osteotome blade 320 having a protruding stop 326 feature on the curved blade shaft 324 can be configured as an osteotome blade having a sharpened cutting edge beveled on both sides.

[0307] Figure 117 A front view of a curved lateral shoulder release osteotome blade 320 is depicted, which has a protruding stop 326 feature on a curved blade shaft 324. Again, the protruding stop feature 326 is located approximately halfway along the curved blade shaft 324 between the cutting edge 322 and the blade insert plate 328. The curved blade shaft 324 also has a narrowed section above the blade insert plate 328. Additional features of the blade insert plate 328 include one or more blade locking slots 330 located within the blade insert plate 328.

[0308] Figure 118 Depicted is a right side elevational view of a curved lateral shoulder release osteotome blade 320 having a protruding stop feature 326 on a curved blade shaft 324. This right side elevational view illustrates the positioning of the protruding stop feature 326 relative to the position of the cutting edge 322 and the blade insert plate 328.

[0309] Figure 119Depicted is a left side elevation view of a curved lateral shoulder releasing a bone tread blade 320 having a protruding stop feature 326 on the blade shaft. This left side elevation view also better illustrates the positioning of the protruding stop feature 326 relative to the position of the cutting edge 322 and the blade insert plate 328.

[0310] Figure 120 A top, side elevation perspective view of a curved lateral shoulder release osteotome blade 320 is depicted, having a protruding stop feature 326 on the blade shaft. This top, side elevation perspective view also better illustrates the positioning of the protruding stop feature 326 relative to the cutting edge 322 and the blade insert plate 328. The protruding stop feature 326 is located approximately halfway along the curved blade shaft 324 between the cutting edge 322 and the blade insert plate 328. The curved blade shaft 324 also has a narrowed section above the blade insert plate 328. Additional features of the blade insert plate 328 include one or more blade locking slots 330 located within the blade insert plate 328. In operation, the curved lateral shoulder release osteotome blade 320 is first locked into the handle assembly 220 and then inserted into one of the plurality of rear guide slots 32 within the guide block assembly 20. The surgeon then applies downward pressure on the handle assembly 220 during revision surgery, causing the curved lateral shoulder to release the osteotome blade 320 to extend downward and cut the lateral shoulder of the implant 130 (see FIG. Figure 68 ).exist Figure 68 The surgical blade 238 shown in FIG is equivalent to the surgical blade 238 shown in FIG. Figure 120 The curved lateral shoulder shown in FIG releases the osteotome blade 320. In this manner, the lateral shoulder of the implant is released from the bone, thereby allowing the medial, anterior, and posterior sides of the femoral calcar to be released to remove the implant 130 from the bone.

[0311] Figure 121 A front view of a curved lateral shoulder release bone tread blade 320 having a protruding stop feature 326 on the blade shaft is depicted, and this view also better illustrates the positioning of the protruding stop feature 326 relative to the position of the cutting edge 322 and the blade insert plate 328. The protruding stop feature 326 is located approximately halfway along the curved blade shaft 324 between the cutting edge 322 and the blade insert plate 328. The curved blade shaft 324 also has a narrowed section above the blade insert plate 328. Additional features of the blade insert plate 328 include one or more blade locking slots 330 located within the blade insert plate 328. A protruding stop feature is provided on the blade shaft.

[0312] Figure 122 Describes how Figure 121A cross-sectional view of a curved lateral shoulder release osteotome blade 320 is shown having a protruding stop feature 326 on a curved blade shaft 324. The cross-sectional view illustrates the blade cutting edge 322, the curved blade shaft 326 having a narrow section, the positioning of the blade insert plate 328, and the positioning of the protruding stop feature 326 relative to the position of the cutting edge 322 and the blade insert plate 328.

[0313] Figure 123 Depicted is a top side elevation perspective view of a universal release osteotome blade 340. The universal release osteotome blade 340 is flat, semi-rigid, and features a sharpened osteotome-shaped pointed cutting edge 342, a flat osteotome blade shaft 344, and a blade insert plate 346 having one or more blade locking slots 348 therein.

[0314] Figure 124 A front view of a universal release osteotome blade 340 is depicted and also illustrates the location of the following features: a sharpened osteotome-shaped pointed cutting edge 342, a flat osteotome blade shaft 344, and a blade insert plate 346 having one or more blade locking slots 348 therein.

[0315] Figure 125 Describes how Figure 124 A cross-sectional view of a universal release osteotome bone chisel blade 340 is shown. The universal release osteotome bone chisel blade 340 includes a sharpened osteotome-shaped pointed cutting edge 342, a flat osteotome blade shaft 344, and a blade insert plate 346, as shown in FIG. Figure 125 Visible in.

[0316] Figure 126 A top plan view of a universal release osteotome blade 340 is depicted showing a sharpened osteotome-shaped cutting edge 342 located at the top of the universal release osteotome blade 340 .

[0317] Figure 127 A bottom view of the universal release osteotome blade 340 is depicted, showing the blade insert plate 346 located at the bottom of the universal release osteotome blade 340.

[0318] Figure 128 Depicted is a rear view of a universal release osteotome blade 340. The universal release osteotome blade 340 is flat, semi-rigid, and features a sharpened osteotome-shaped pointed cutting edge 342, a flat osteotome blade shaft 344, and a blade insert plate 346 having one or more blade locking slots 348 therein.

[0319] Figure 129Depicted is a left side elevational view of a universal release osteotome bone chisel blade 340. The positions of the sharpened osteotome-shaped pointed cutting edge 342, the flat osteotome blade shaft 344, and the blade insert plate 346 are shown.

[0320] Figure 130 Depicted is a front view of a universal release osteotome blade 340 that is flat, semi-rigid, and features a sharpened osteotome-shaped pointed cutting edge 342, a flat osteotome blade shaft 344, and a blade insert plate 346 having one or more blade locking slots 348 therein.

[0321] Figure 131 Depicted is a right side elevational view of a universal release osteotome blade 340. The positions of the sharpened osteotome-shaped pointed cutting edge 342, the flat osteotome blade shaft 344, and the blade insert plate 346 are shown.

[0322] Figure 132 Depicted is a top side elevation perspective view of a front and rear osteotome blade 350 having a sharpened pointed cutting edge 352, a left sharpened curved cutting edge 358, and a right sharpened straight cutting edge 354, wherein the left curvature defines a blade protrusion section 356 on the left side of the cutting blade. Additional features of the front and rear osteotome blades 350 include a blade shaft 360 and a blade insert plate 362 having one or more blade locking slots 364 therein.

[0323] Figure 133 Depicted is a front view of a front and rear osteotome blade 350 having a sharpened pointed cutting edge 352, a left sharpened curved cutting edge 358, and a right sharpened straight cutting edge 354, clearly showing that the left curvature defines a blade protrusion section 356 on the left side of the cutting blade, and features of the front and rear osteotome blade 350 include a blade shaft 360 and a blade insert plate 362 having one or more blade locking slots 364 therein.

[0324] Figure 134 Describes how Figure 133 Shown is a cross-sectional view of the front and rear osteotome blade 350. Here, the sharpened pointed cutting edge 352, blade shaft 360 and blade insert plate 362 are all visible in this cross-sectional view.

[0325] Figure 135 A top plan view of the front and back osteotome blades 360 is depicted, illustrating the positioning of the sharpened pointed cutting edge 352 and the right sharpened straight cutting edge 354 .

[0326] Figure 136 Depicted are bottom views of the anterior and posterior osteotome blades 360 illustrating the positioning of the blade projection sections 356 and the blade insert plate 362 .

[0327] Figure 137 A rear view of the front and rear osteotome blades 350 is depicted, having a sharpened pointed cutting edge 352, a left sharpened curved cutting edge (the back side 368 of the left sharpened curved cutting edge is shown here), and a right sharpened straight cutting edge (the back side 366 of the right sharpened straight cutting edge is shown here). Additional features of the front and rear osteotome blades 350 are also visible, including a blade shaft 360 and a blade insert plate 362 having one or more blade locking slots 364 therein.

[0328] Figure 138 A left side elevation view of the anterior and posterior osteotome blade 350 is depicted, showing the sharpened pointed cutting edge 352, the left side sharpened curved cutting edge 358, and the blade insert plate 362.

[0329] Figure 139 Depicted is a front view of a front and rear osteotome blade 350 having a sharpened pointed cutting edge 352, a left curved cutting edge 358, and a right straight cutting edge 354, wherein the left curvature defines a blade protrusion section 356 on the left side of the cutting blade. Additional features of the front and rear osteotome blades 350 include a blade shaft 360 and a blade insert plate 362 having one or more blade locking slots 364, all of which can be seen herein.

[0330] Figure 140 A right side elevation view of the anterior and posterior osteotome blade 350 is depicted, showing the sharpened pointed cutting edge 352 , the right straight cutting edge 354 , the blade shaft 360 , and the blade insert plate 362 .

[0331] Figure 141 Depicted are top side elevation perspective views of anterior and posterior osteotome blades 370 having a sharpened pointed cutting edge 372, a right curved cutting edge 378, and a left straight cutting edge 374, wherein the right curvature defines a blade protrusion section 376 on the right side of the cutting blade, the osteotome blade being configured to Figures 132 to 140 Additional features of the front and rear osteotome blades 370 include a blade shaft 380, a blade insert plate 382, ​​and one or more blade locking slots 384 located within the blade insert plate 382. In operation, the locking slots 384 are used to lock the blades into place within the osteotome blade handle assembly 220 (see above). Figures 52 to 66 ).

[0332] Figure 142Depicted is a front view of a front and rear osteotome blade 370 having a sharpened pointed cutting edge 372, a right curved cutting edge 378, and a left straight cutting edge 374, wherein the right curvature defines a blade protrusion section 376 on the right side of the cutting blade, the osteotome blade being configured to Figures 132 to 140 Additional features of the front and rear osteotome blades 370 include a blade shaft 380 , a blade insert plate 382 , and one or more blade locking slots 384 within the blade insert plate 382 .

[0333] Figure 143 Describes how Figure 142 A cross-sectional view of the front and rear osteotome blade 370 is shown having a sharpened pointed cutting edge 372, a right curved cutting edge 378. The cross-sectional view illustrates the sharpened pointed cutting edge 372, the left straight cutting edge 374, the blade shaft 380, and the blade insert plate 382.

[0334] Figure 144 Depicted are top plan views of the anterior and posterior osteotome blades 370 showing the right curved cutting edge 378 and the blade insert plate 382.

[0335] Figure 145 Depicted is a bottom view of the front and rear osteotome blades 370 showing the blade insert plate 382 and the blade protrusion section 376 on the right side of the cutting blade.

[0336] Figure 146 Depicted is a rear view of anterior and posterior osteotome blade 370 having a sharpened pointed cutting edge 372, a right side sharpened curved cutting edge 378 (not shown here, see Figure 142 ) (shown here is the back side 386 of the right sharpened curved cutting edge) and the left sharpened straight cutting edge 374 (not shown here, see Figure 142 ) (The back side 388 of the left sharpened straight cutting edge is shown here.) Additional features of the front and rear osteotome blades 370 are also visible here, including the blade shaft 380 and the blade insert plate 382 having one or more blade locking slots 384 therein.

[0337] Figure 147 Describes how Figure 142 Shown is a left side elevational view of the front and rear osteotome blade 370 having a sharpened pointed cutting edge 372, a right side curved cutting edge 378. The cross-sectional view illustrates the sharpened pointed cutting edge 372, the left side straight cutting edge 374, the blade shaft 380, and the blade insert plate 382.

[0338] Figure 148Depicted is a front view of a front and rear osteotome blade 370 having a sharpened pointed cutting edge 372, a right curved cutting edge 378, and a left straight cutting edge 374, wherein the right curvature defines a blade protrusion section 376 on the right side of the cutting blade, the osteotome blade being configured to Figures 132 to 140 Additional features of the front and rear osteotome blades 370 include a blade shaft 380 , a blade insert plate 382 , and one or more blade locking slots 384 within the blade insert plate 382 .

[0339] Figure 149 Depicted is a right side elevational view of the front and rear osteotome blades 370 having sharpened pointed cutting edges 372. Also seen in this view are the right side curved cutting edge 378 and the blade insert plate 382.

[0340] Figure 150 A front view of a bone cutting blade locking handle assembly 220 is depicted having a flexible medial calcar scoop blade 260 attached thereto, wherein the flexible medial calcar scoop blade 260 extends through and is guided by the guide block assembly 20 and cuts the medial calcar away from the implanted femoral stem 130. Figure 150 Demonstrates the use of Figures 1 to 149 Once the guide block assembly 20 is adjusted for the size and shape of the implant using the upper guide plate 26, lower guide plate 38, and held securely by the guide plate adjustment screw 30, the blade can be moved downward (see directional arrow) to cut the implant 130 from the bone (not shown). The flexible medial calcar scoop-shaped blade 260 is secured to the osteotome handle assembly 220 and flexes as it passes downward along the contour of the medial calcar of the implant.

[0341] Figure 151 Depicted is a top side elevation perspective view of a bone scalpel blade locking handle assembly 220 having a flexible medial calcar scoop blade 260 attached thereto, wherein the flexible medial calcar scoop blade 260 extends through and is guided by the guide block assembly 20 and cuts the medial calcar away from the implanted femoral stem. Figure 150 Demonstrates the use of Figures 1 to 149 Prior to inserting the blade 260, the guide block is secured to the trunnion of the implant using the trunnion securing member 44, and the guide plate 38 is adjusted to the size and contour of the medial surface of the femoral calcar of the implant. After the implant is cut from the bone, the slide hammer assembly 200 is screwed into the guide block 20, and the implant is removed upward from the bone by an upward striking motion.

[0342] Figure 152A posterior view of the osteotome blade locking handle assembly 220 is depicted having a flexible medial calcar scoop blade 260 attached thereto, wherein the flexible medial calcar scoop blade 260 extends through and is guided by the guide block assembly 20 and cuts the medial calcar away from the implanted femoral stem 130. Figure 150 Demonstrates the use of Figures 1 to 149 The cutting edge 262 of the flexible medial calcar spoon blade 260, secured by the osteotome handle assembly 220, is guided by the adjusted guide block assembly 20 to cut along the contour of the medial calcar of the implant 130. The lateral shoulder of the implant is then separated from the bone using the curved lateral shoulder release blade, see Figure 67 and Figure 68 In addition, use Figures 132 to 149 The osteotome blades described in the present invention cut the anterior and posterior implant surfaces from the bone. The same osteotome blade locking handle assembly 220 is used in each osteotome operation because various osteotome blades can be easily removed and replaced as needed during revision surgery procedures.

[0343] Figure 153 Describes how Figure 152 A cross-sectional view of a bone tread blade locking handle 220 is shown having a flexible medial calcar scoop blade attached thereto, wherein the flexible medial calcar scoop blade 260 extends through and is guided by the guide block assembly 20 and cuts the medial calcar away from the implanted femoral stem 130. Figure 150 Demonstrates the use of Figures 1 to 149 In this view, it is clear that the guide block assembly 20 is adjusted to the size and shape of the implant using the upper guide plate 26, lower guide plate 38, and is securely held in place by the guide plate adjustment screw 30. Figure 153 Also shown are locking handles 222 and locking rods 230 for securing blade 260 in place to allow the flexible medial calcar scoop blade 260 to move in a downward or upward direction (see directional arrows). The cutting edge 262 of the flexible medial calcar scoop blade 260, secured by the osteotome handle assembly 220, is guided by the adjusted guide block assembly 20 to cut along the contour of the medial calcar of the implant 130. In this case, the implant is collarless, but it should be understood that the revision osteotome blades and osteotome blades described herein can be used equally well to remove collared implants.

[0344] Figure 154A front view of a bone cutter blade locking handle assembly 220 is depicted having a flexible medial calcar forked blade 260 attached thereto, wherein the flexible medial calcar forked blade 280 extends through and is guided by the guide block assembly 20 and cuts the medial calcar away from the implanted femoral stem 130. Figure 154 Demonstrates the use of Figures 1 to 149 Once the guide block assembly 20 is adjusted to the size and shape of the implant using the upper guide plate 26 and lower guide plate 38 and held securely by the guide plate adjustment screw 30, the blade can be moved downward (see directional arrow) to cut the implant 130 from the bone (not shown). The flexible medial calcar forked blade 280 is secured to the osteotome handle assembly 220 and flexes as it passes downward along the contour of the medial calcar of the implant, thereby cutting the implant 130 from the bone using the cutting edge 282.

[0345] Figure 155 A top side elevation perspective view of a bone cutter blade locking handle assembly 220 is depicted having a flexible medial calcar forked blade 280 attached thereto, wherein the flexible medial calcar forked blade 280 extends through and is guided by the guide block assembly 20 and cuts the medial calcar away from the implanted femoral stem. Figure 150 Demonstrates the use of Figures 1 to 149 Prior to inserting the flexible medial calcar fork blade 280, the guide block is fastened to the trunnion of the implant using the trunnion fastening member 44, and the guide plate 38 is adjusted to the size and contour of the medial calcar surface of the implant. After the implant is cut from the bone, the slide hammer assembly 200 (not shown) is screwed into the guide block 20 at the internal threaded hole 34, and the implant is removed upward from the bone by an upward impact motion.

[0346] Figure 156 A posterior view of the osteotome blade locking handle assembly 220 is depicted having a flexible medial calcar scoop blade 260 attached thereto, wherein the flexible medial calcar scoop blade 260 extends through and is guided by the guide block assembly 20 and cuts the medial calcar away from the implanted femoral stem 130. Figure 150 Demonstrates the use of Figures 1 to 149 The cutting edge 262 of the flexible medial calcar spoon blade 260, secured by the osteotome handle assembly 220, is guided by the adjusted guide block assembly 20 to cut along the contour of the medial calcar of the implant 130. The lateral shoulder of the implant is then separated from the bone using the curved lateral shoulder release blade, see Figure 67 and Figure 68 In addition, use Figures 132 to 149The osteotome blades described in the present invention cut the anterior and posterior implant surfaces from the bone. The same osteotome blade locking handle assembly 220 is used in each osteotome operation because various osteotome blades can be easily removed and replaced as needed during revision surgery procedures.

[0347] Figure 157 Describes how Figure 156 A cross-sectional view of a bone tread blade locking handle 220 is shown having a flexible medial calcar fork blade 280 attached thereto, wherein the flexible medial calcar spoon blade 280 extends through and is guided by the guide block assembly 20 and cuts the medial calcar away from the implanted femoral stem 130. Figure 150 Demonstrates the use of Figures 1 to 149 In this view, it is clear that the guide block assembly 20 is adjusted to the size and shape of the implant using the upper guide plate 26, lower guide plate 38, and is securely held in place by the guide plate adjustment screw 30. Figure 153 Also shown are a locking handle 222 and a locking rod 230 for securing the flexible medial calcar scoop blade 280 in place to allow the blade 260 to move in a downward or upward direction (see directional arrows). The cutting edge 282 of the flexible medial calcar scoop blade 280, secured by the osteotome handle assembly 220, is guided by the adjusted guide block assembly 20 to cut along the contour of the medial calcar of the implant 130. After the implant is cut from the bone, the slide hammer assembly 200 is screwed into the guide block 20 and the implant is removed upward from the bone by an upward impact motion. In this case, the implant is collarless, but it will be understood that the revision osteotome blades and osteotome blades described herein work equally well for removing collared implants. Figure 157 It is then demonstrated that these four major components of the system work together to efficiently remove the implant in significantly less time, with significantly less blood loss, and therefore with significantly improved revision surgery patient outcomes.

[0348] In summary, the four main components of the revision arthroplasty surgical system and method, namely: (1) the guide block assembly 20; (2) the osteotome blade locking handle assembly 220; (3) the slide hammer; and (4) the various flexible medial femoral osteotome blades, lateral shoulder release blades, anterior and posterior blades, and universal release osteotome blades of the revision arthroplasty surgical osteotome blades and surgical osteotome blades work together to make implant removal more efficient, less time-consuming, and with significantly less patient blood loss, all of which result in improved patient outcomes. In addition, the system can be adjusted for any size and shape of implant to be removed, including prostheses with and without collars. The guide block assembly 20 embodiment 10A of the revision arthroplasty surgical system and method, wherein the assembled osteotome blade guide block 20 can be adjusted in two separate ways, the guide block having adjustable L-shaped osteotome blade guide plates 26 and 38. First, the adjustment plate retaining screw 30 can be turned outward (raised) or inward (lowered) to retract or extend the lower adjustment plate 38 toward or away from the handle. Secondly, the adjustment plate retaining screw 30 can be completely removed, and the guide plate lower section 38 can be shifted to a different guide slot within the plurality of guide slots 36, one closer to or farther from the shank to be removed. One or both of the aforementioned guide plate adjustments can be made to successfully guide the cutting blade downward to shanks of varying sizes. In this manner, the guide block assembly 20 can accommodate shanks of varying sizes to be removed during revision surgery. Furthermore, both collared and collarless shanks can be removed by appropriately adjusting the length and distance of the adjustable guide plates. Regarding the various osteotome blades and surgical osteotomes described herein, an osteotome is an orthopedic instrument typically used for cutting bone. Surgical osteotomes are used for bone reshaping. Functionally, the primary difference is that an osteotome has a single beveled edge, while a bone cutter has two beveled edges. Furthermore, the flexible medial femoral calcar osteotome blade with a spoon-shaped and fork-shaped cutting edge can be configured as an osteotome blade with two beveled sharpened cutting edges, or as a surgical osteotome in which only one side of the sharpened cutting edge is beveled. It is also an aspect of the present invention that all blades disclosed and described herein can be configured as osteotome blades or surgical osteotome blades, can be flexible or rigid, and can be curved and compound curved (curved in two planes).

[0349] In addition to the two-piece construction of the assembled scalpel blade guide block 20, it is contemplated that the scalpel blade guide block assembly 20 of the present invention can be manufactured and formed in one piece, formed by molding or computer numerical control (CNC) from a single piece of material, including but not limited to metal, plastic, wood, ceramic, and composite materials. Similarly, it is contemplated that the shank trunnion fastening member of the present invention can be manufactured and formed in one piece or two pieces, formed by molding or computer numerical control (CNC) from one piece or two pieces of material, including but not limited to metal, plastic, wood, ceramic, and composite materials.

[0350] During revision joint surgery, the removal of implanted prostheses (such as femoral stems) is a challenging problem for surgeons. The present invention makes the removal process significantly easier, faster, more efficient, and much less invasive to the patient. In summary, the following are the 12 steps of the surgical procedure for removing a femoral stem using the revision joint surgery devices 10P and 10Q according to the present invention:

[0351] Steps of a femoral stem extraction procedure utilizing the guide block assembly 20 of Example 10A (Adjustable Guide Plate Method).

[0352] 1. Approach the hip joint according to the surgeon's preference, i.e., anterior, posterior, or lateral.

[0353] 2. Release the soft tissue and dislocate the hip. Remove the femoral head. Remove soft tissue as needed to expose the bone-implant interface. Use a Lambotte osteotome to define the bone-implant interface. If a collared handle is found, remove a small amount of bone below the collar to allow the flexible osteotome to access the handle below the collar.

[0354] 3. Next, use the anterior and posterior specific osteotome to advance the anterior and posterior osteotome blades along the anterior and posterior surfaces of the implant to release the anterior and posterior surfaces of the implant from the bone.

[0355] 4. After releasing the front and rear surfaces, select the appropriate trunnion fastening member adapter.

[0356] 5. Tighten the guide block trunnion fastening member to the shank trunnion and use the fastening nut to fasten the trunnion fastening member to the guide block.

[0357] 6. Next, select the appropriate slot and place the adjustable guide plate into the slot. After selecting the correct slot, screw it into the block and adjust the guide plate to the appropriate depth.

[0358] 7. Next, advance the flexible medial calcar bone cutter blade along the calcar. As the blade is advanced, adjust the guide plate as needed to separate the medial calcar implant surface from the bone.

[0359] 8. Remove the flexible medial calcar osteotome blade.

[0360] 9. Next, select the correct slot next to the bone release tool and advance the curved lateral shoulder release tool blade until the lateral shoulder releases from the bone.

[0361] 10. Thread the slide hammer into the threaded hole on the upper surface of the guide block assembly.

[0362] 11. Move the slide hammer handle upward, striking it against the upper impact cap until the implant is fully released.

[0363] 12. Remove the implant by moving the slide hammer upward.

[0364] The revision osteotome blades and surgical osteotome blade components 10A, 20, 100, 140, 200, 220, 260, 270, 280, 290, 300, 320, 340, 350, and 370 shown in the drawings and described in detail herein disclose arrangements of elements of a particular construction and configuration for illustrating preferred embodiments of the structure and method of operation of the present invention. However, it should be understood that elements having different constructions and configurations and other arrangements thereof, in addition to those shown and described, may be employed to provide revision osteotome blades and surgical osteotome blade components 10A, 20, 100, 140, 200, 220, 260, 270, 280, 290, 300, 320, 340, 350, and 370 in accordance with the spirit of the present application, and such changes, substitutions, and modifications as may occur to those skilled in the art are deemed to fall within the scope of the present application as broadly defined in the appended claims.

[0365] Although certain embodiments of the present invention have been described, these embodiments are presented by way of example only and are not intended to limit the scope of this disclosure. In fact, the novel methods and systems described herein can be implemented in a variety of other forms. In addition, various omissions, substitutions, and changes can be made to the systems and methods described herein without departing from the spirit of this disclosure. For example, a part of an embodiment described herein can replace another part in another embodiment described herein. The attached claims and their equivalents are intended to cover such forms or modifications that should fall within the scope and spirit of this disclosure. Therefore, the scope of the present invention is limited only by reference to the attached claims.

[0366] Features, materials, characteristics or groups described in conjunction with a particular aspect, embodiment or example should be understood to be applicable to any other aspect, embodiment or example described in this section or elsewhere in this specification, unless incompatible therewith. All features disclosed in this specification (including any accompanying claims, abstract and drawings) and / or all steps of any method or process so disclosed may be combined in any combination, except where at least some of such features and / or steps are mutually exclusive combinations. The invention is not limited to the details of any foregoing embodiments. The present protection extends to any novel feature, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel step, or any novel combination, of the steps of any method or process so disclosed.

[0367] Furthermore, certain features described in this disclosure in the context of separate implementations may also be implemented in combination in a single implementation. Conversely, different features described in the context of a single implementation may also be implemented in multiple implementations separately or in any suitable subcombination. Furthermore, although certain features may be described above as functioning in certain combinations, in some cases one or more features from a claimed combination may be removed from the combination, and the combination may be claimed as a subcombination or a variant of the subcombination.

[0368] In addition, although certain operations may be depicted in the drawings or described in this specification in a particular order, such operations need not be performed in the particular order shown or in a sequential order, or all of the illustrated operations need not be performed to achieve the desired result. Other operations not depicted or described may be incorporated into these exemplary methods and processes. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the described operations. In addition, these operations may be rearranged or reordered in other implementations. Those skilled in the art will appreciate that, in some embodiments, the actual steps taken in the processes shown and / or disclosed may differ from the steps shown in the drawings. Depending on the embodiment, some of the above steps may be removed and other steps may be added. In addition, the features and attributes of the specific embodiments disclosed above may be combined in different ways to form additional embodiments, all of which fall within the scope of this disclosure. Furthermore, the separation of various system components in the implementations described above should not be understood as requiring such separation in all implementations, but rather it should be understood that the described components and systems may generally be integrated together into a single product or packaged into multiple products.

[0369] For purposes of this disclosure, certain aspects, advantages, and novel features are described herein. Not all such advantages may be achieved according to any particular embodiment. Thus, for example, those skilled in the art will recognize that this disclosure may be implemented or practiced in a manner that achieves one advantage or group of advantages as taught herein without necessarily achieving other advantages as may be taught or suggested herein.

[0370] Unless expressly stated otherwise, or otherwise understood within the context in which they are used, conditional language such as "can," "might," "might," or "may" is generally intended to convey that some embodiments include, while other embodiments do not, certain features, elements, and / or steps. Thus, such conditional language is generally not intended to imply that features, elements, and / or steps are in any way required by one or more embodiments, or that one or more embodiments necessarily include logic for determining, with or without user input or prompting, that such features, elements, and / or steps are included in or to be implemented in any particular embodiment.

[0371] Unless expressly stated otherwise, or otherwise understood within the context as used, linking language such as the phrase "at least one of X, Y, and Z" is generally used to convey that something, an item, etc. can be X, Y, or Z. Thus, such linking language is generally not intended to imply that certain embodiments require the presence of at least one of X, at least one of Y, and at least one of Z.

[0372] As used herein, language of degree, such as the terms "substantially," "approximately," "generally," and "substantially" as used herein, refers to a value, amount, or characteristic that is close to a stated value, amount, or characteristic that still performs the desired function or achieves the desired result. For example, the terms "substantially," "approximately," "generally," and "substantially" may refer to an amount that is less than 10% of the stated amount, less than 5% of the stated amount, less than 1% of the stated amount, less than 0.1% of the stated amount, or less than 0.01% of the stated amount. As another example, in certain embodiments, the terms "substantially parallel" and "substantially parallel" refer to a value, amount, or characteristic that deviates from perfect parallelism by less than or equal to 15 degrees, 10 degrees, 5 degrees, 3 degrees, 1 degree, or 0.1 degrees.

[0373] The scope of the present disclosure is not intended to be limited by the specific disclosure of preferred embodiments in this section or elsewhere in this specification, and may be limited by the claims in this section or elsewhere in this specification or in the future. The claim language is to be interpreted broadly based on the language employed in the claims and not limited to the examples described in this specification or during the prosecution of the application, which examples are to be construed as non-exclusive.

[0374] Furthermore, the purpose of the aforementioned abstract is to enable the U.S. Patent and Trademark Office, foreign patent offices worldwide, persons of ordinary skill who are not familiar with patent or legal terminology or language, and particularly scientists, engineers, and practitioners in the field, to quickly ascertain the nature and substance of the technical disclosure of the present application upon a cursory review. The abstract is neither intended to define the invention of the present application as indicated by the claims nor to limit the scope of the invention in any way.

Claims

1. A calcar medial osteotome blade for joint revision surgery, comprising: (a) Spoon-shaped cutting edge; (b) blade shaft; as well as (c) Blade insert plate.

2. The medial femoral calcar osteotome blade for revision joint surgery according to claim 1, wherein: The spoon-shaped cutting edge is beveled on both sides of the cutting edge.

3. The medial femoral calcar osteotome blade for revision joint surgery according to claim 1, wherein: The spoon-shaped cutting edge is beveled on one side of the cutting edge.

4. The medial femoral calcar osteotome blade for revision joint surgery according to claim 1, wherein: The blade shaft is flexible.

5. The medial femoral calcar osteotome blade for revision joint surgery according to claim 1, wherein: The blade shaft is elongated.

6. A calcar medial osteotome blade for joint revision surgery, comprising: (a) Forked cutting edge; (b) blade shaft; as well as (c) Blade insert plate.

7. The medial calcar bone tome blade for joint revision surgery according to claim 6, wherein: The fork-shaped cutting edge is beveled on both sides of the cutting edge.

8. The medial calcar bone tread blade for joint revision surgery according to claim 6, wherein: The fork-shaped cutting edge is beveled on one side of the cutting edge.

9. The medial calcar bone tome blade for joint revision surgery according to claim 6, wherein: The blade shaft is flexible.

10. The medial calcar bone tome blade for joint revision surgery according to claim 6, wherein: The blade shaft is elongated.

11. A curved lateral shoulder release osteotome blade for joint revision surgery, comprising: (a) Curved cutting edge; (b) blade shaft; as well as (c) Blade insert plate.

12. The curved lateral shoulder release osteotome blade for revision joint surgery according to claim 11, wherein: The curved cutting edge is beveled on both sides of the cutting edge.

13. The curved lateral shoulder release osteotome blade for revision joint surgery according to claim 11, wherein: The spoon-shaped cutting edge is beveled on one side of the curved cutting edge.

14. The medial calcar osteotome blade for revision joint surgery according to claim 11, wherein: The blade shaft further includes a blade stopping protrusion.

15. The medial calcar osteotome blade for revision joint surgery according to claim 11, wherein: The blade shaft is rigid.

16. A universal release osteotome blade for joint revision surgery, comprising: (a) V-shaped pointed cutting edge; (b) blade shaft; as well as (c) Blade insert plate.

17. The universal releasing osteotome blade for joint revision surgery according to claim 16, wherein: The curved cutting edge is beveled on one side of the pointed cutting edge.

18. The universal releasing osteotome blade for joint revision surgery according to claim 16, wherein: The blade shaft is rigid.

19. A front and back release blade for joint revision surgery, comprising: (a) Pointed cutting edge; (b) a blade projection defining an elongated curved cutting edge; (c) straight elongated cutting edges; (d) a blade shaft; and (e) Blade insert plate.

20. The revision joint surgery anterior and posterior release blade of claim 19, wherein: The pointed cutting edge, the elongated curved cutting edge, and the straight elongated cutting edge are all beveled on one side of the cutting edge.

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