118 results about "Osteotome" patented technology

A rotary osteotome for deep reach applications. The body of the osteotome has a tapered end that supports helically spiraling flutes. Substantially margin-less (without margin) working edges are interleaved between the flutes to provide compaction action when rotated in a non cutting direction. The body also has an elongated cylindrical stopper section. An irrigation conduit passes through the center of the stopper section and emerges at a plurality of outlet orifices that function as independent nozzles for irrigating fluid. The outlet orifices are generally elliptical in shape and spaced around the body to maintain balance. The irrigation conduit has a main trunk that opens to a flow splitter, which in turn divides the flow of irrigating fluid into substantially equal branches. Each branch is angled at an acute trajectory relative to the longitudinal axis, in the direction of said apical end, between about 10° and 45°.

An apparatus can include an osteotome blade including an elongate main body extending from a proximal end to a distal end, the elongate main body having a curved cross-section and defining a helical path along at least a portion of a longitudinal axis of the elongate main body, wherein the distal end includes a distal cutting edge.

A rotary tool configured for high-speed condensing and / or cutting action to enlarge a hole. The tool has a body around which is formed a plurality of flutes. Each flute has a cutting face on one side and a densifying face on the other side. A land between adjacent flutes establishes a substantially margin-less working edge along each cutting face. The working edges are configured to produce osseodensification when the tool is operated in the condensing mode. A transverse valley is formed at the apical end of the body. The valley is a relief in the tip that creates several secondary cut / grind edges that are useful to produce and evenly distribute bone debris. When withdrawing the rotary osteotome from an enlarged hole, a small button of bone debris remains at the bottom of the hole. The button remnant facilitates new bone ingrowth and osseointegration of a subsequently installed anchor.

A depth stop for a drilling tool to form a hole of predetermined depth. The depth stop includes an interface portion that couples directly to the shank of the osteotome via interlocking spur and groove features. The interface has a cap flange and a tapered skirt. The underside of the cap flange establishes a reference surface for a tubular key that slides onto the tapered skirt and is held there by friction. The skirt is formed with a relief directly under the cap flange to facilitate haptic confirmation of proper connection. Elongated irrigation windows in the key expose a domed transition on the osteotome, thereby facilitating irrigation. The depth stop can be used, optionally, with an alignment jig designed with a precision guide bushing. The guide bushing is semi-cylindrical and terminates with an internal abutment step against which the lower end of the key engages at full depth.

A surgical bone cutting system includes a trajectory guide and an osteotome or trepanation tool with a generally square cutting tip that creates a corridor through bone, for example, in the context of spine, through a facet joint or other vertebral structure and to the disc space between two vertebrata for any of a variety of surgical procedures, including but not limited to disc prep and cage insertion. The osteotome fits into the trajectory guide to contact bone and effect creating a bony corridor. In some embodiments, the trajectory guide includes a cylindrical allograft collection chamber, and the trajectory guide and osteotome fit into standard tubular retractors and are agnostic with respect to receiving standard drill bits or a powered auger insertable through a center through channel.

An implantation kit including a rotational osteotome and an implant is disclosed. The rotational osteotome includes a plurality of steps of different diametrical sizes, a tip, and at least one flute; and every step includes an annular bottom bevel to provide a cutting edge and recessed section. The implant includes a body having a cylindrical head section and a conical section provided with an external thread and a plurality of spiral flutes. The conical section has a downward tapered profile correspondingly aligned with the recessed sections. The cylindrical head section has a straight cylindrical profile matching that of the step having the largest diametrical size. With the above arrangements, an implant hole on a bone can be formed in only one drilling with one single osteotome for fixedly holding the implant therein. Therefore, the time needed for dental and orthopedic surgeries is largely shortened while better osseointegration can be achieved.

A rotary osteotome for deep reach applications. The body of the osteotome has a tapered end that supports helically spiraling flutes. Substantially margin-less (without margin) working edges are interleaved between the flutes to provide compaction action when rotated in a non-cutting direction. The body also has an elongated cylindrical stopper section. An irrigation conduit passes through the center of the stopper section and emerges at a plurality of outlet orifices that function as independent nozzles for irrigating fluid. The outlet orifices are generally elliptical in shape and spaced around the body to maintain balance. The irrigation conduit has a main trunk that opens to a flow splitter, which in turn divides the flow of irrigating fluid into substantially equal branches. Each branch is angled at an acute trajectory relative to the longitudinal axis, in the direction of said apical end, between about 10° and 45°.

The utility model relates to an ultrasonic osteotome positioning structure and an ultrasonic osteotome device, and relates to the technical field of dental medical instruments. When the first connecting piece and the second connecting piece in the ultrasonic osteotome positioning structure are connected in an inserted mode, the first contact portion of the first matching face and the second matching face is a small-area portion, the area of the first matching face and the second matching face which are in contact subsequently can be increased along with the increase of the inserting depth, friction force is increased, and the service life of the ultrasonic osteotome is prolonged. The first connecting piece and the second connecting piece are connected more tightly, and the connecting precision is improved. Due to the fact that the area of the initial contact surface is small, in the initial inserting stage, even if the inserting direction deviates, adjustment can be conducted easily, the gap generated when the first matching surface and the second matching surface are completely matched is further reduced, and the accuracy and stability of connection between the first connecting piece and the second connecting piece are improved. In the operation, the risk that the reference piece shakes relative to the blade point part is reduced, and the accuracy of the determined position of the blade point part is further improved.

The utility model discloses an ultrasound osteotome and a knife handle thereof, the knife handle is used for connecting an osteotome knife, the osteotome knife is provided with a hole path communicated with the outside, the knife handle comprises an osteotome shell, an ultrasound generating assembly and a cooling pipe assembly, the ultrasound generating assembly is fixedly connected in an inner cavity of the osteotome shell, and the cooling pipe assembly is fixedly connected in the inner cavity of the osteotome shell. The osteotome cutter is fixedly connected to the front end of the ultrasonic generation assembly, the cooling pipe assembly comprises a capillary tube and a cooling pipe unit, the capillary tube is arranged in a center hole formed in the center of the ultrasonic generation assembly in the axial direction, the front end of the capillary tube is communicated with a hole path formed in the osteotome cutter, and the cooling pipe unit is arranged in the hole path. And the rear end of the capillary tube is connected with the cooling tube unit so as to transmit a cooling medium to the capillary tube and a hole path of the osteotome tool through the cooling tube unit. According to the utility model, the cooling medium can be released to play a cleaning role when the osteotome works, and the problems of short circuit, abnormity and the like caused by overheating of the ultrasonic generating component can be avoided.

The utility model relates to the field of medical instruments, in particular to an annular ultrasonic osteotome for maxillary sinus internal lifting operation, which comprises a working handle, and a cutting head or a water stripping head is detachably mounted on the working handle. The cutting head comprises a first connecting section and a blade section, one end of the first connecting section is detachably connected with the working handle, the other end of the first connecting section is connected with the blade section, and a blade is arranged at one end of the blade section; the thickness of the blade part is gradually increased; the water stripping head comprises a second connecting section and a water outlet section, one end of the second connecting section is detachably connected with the working handle, and the other end is connected with one end of the water outlet section; a stripping water outlet is formed in the end part of the other end of the water outlet section; a stripping water channel is formed in the water stripping head and communicated with the stripping water outlet. According to the annular ultrasonic osteotome, in the maxillary sinus membrane lifting operation, the subsinus cortical bone can be completely reserved, and the punching rate of the maxillary sinus membrane can be reduced.

The present application is directed a Joint Revision Surgery System and Method which includes a surgical osteotome blade guide block which has a plurality of rearward blade guide slots, a central cavity and a plurality of forward guide slots having a two-way adjustable L-shaped guide plate. The surgical osteotome blade guide block central cavity houses a stem trunnion securing and is secured to the prosthesis to be extracted. The guide blade block is secured to the trunnion of the prosthesis to be extracted using a stem trunnion securing member housed within the guide block. Straight, curved, flexible and rigid and compound curved osteotome blades are guided by the blade guide slots to cut the implant free from the bone. The Joint Revision Surgery System and Method facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

The ultrasonic osteotome for the joint surgery is characterized in that the ultrasonic osteotome comprises a piezoelectric transducer (1), an amplitude-change pole (2) and a tool bit (3), the amplitude-change pole (2) is arranged at the front end of the piezoelectric transducer (1), and the tool bit (3) is arranged at the front end of the amplitude-change pole (2); the tool bit (3) comprises a large-end cylinder (31), a transition R angle (32), a small-end cylinder (33) and a cutting part (34); the width of the cutting part (34) is 4-5 mm, the thickness of the cutting part (34) is 2-3 mm, an oval receding groove (341) is formed in the middle of the cutting part, sawteeth (342) are arranged on the two side walls in the axis direction, and the number of the sawteeth on one side is 20-25. The utility model has the advantages of simple design, low processing cost, large amplitude, high safety and the like, and is very suitable for ultrasonic osteotome for joint surgery.

The present invention relates to the technical field of medical devices, and particularly to an ultrasonic bone scalpel power test device. The solution includes: a base, a motion structure, a fixing structure, and a detection structure; the motion structure includes a first bracket, a slider, and a motor. The first bracket is fixed on the base, the slider is slidably connected to the first bracket, and the motor drives the slider to make a vertical reciprocating motion along the first bracket; the fixing structure includes a second bracket, and the second bracket is fixedly connected to the slider; a first groove, a second groove, and a locking structure are provided on the second bracket. The second groove is located at the top of the first groove and is communicated with the first groove. The locking structure is used to fix the ultrasonic bone scalpel in the first groove, and the second groove is used to support the pipeline of the ultrasonic bone scalpel; the detection structure is connected to the second bracket, and the detection structure is used to detect the magnitude of the cutting force when the ultrasonic bone scalpel moves. The device of the present invention can automatically control the ultrasonic bone scalpel to perform cutting measurement at a uniform speed and with a uniform force, avoiding human errors during manual measurement.

Disclosed are a method for determining a position of an ultrasonic osteotome (10), a system, a computer-readable storage medium, and a computer program product. The method includes: obtaining an acoustic impedance signal of the ultrasonic osteotome (10); and determining a current position of the ultrasonic osteotome (10) in bone tissue to be cut based on the acoustic impedance signal. In this way, an operator (50) can conveniently obtain the position of the ultrasonic osteotome (10) in real time, which can effectively prevent a movement path of the ultrasonic osteotome (10) from deviating from a target path, thereby reducing damage to soft tissue during surgery.

An apparatus is described herein comprising an osteotome and a sheath, wherein the proximal end of the osteotome comprises a handle, wherein the distal end of the osteotome comprises a blade, wherein an intermediate stem joins the handle and the blade, the proximal end of the sheath comprising an attachment component, wherein a surface of the distal end of the sheath comprises a hollowed region, wherein the hollowed region comprises a stem, the proximal end of the stem comprising a securing component for receiving and securing the attachment component of the sheath, the blade comprising a blade curvature, wherein a surface of the blade curvature comprises a recessed opening, the recessed opening, and the stem, the attachment component, and the securing component configured to cooperate in securing the sheath to the blade.

This invention provides a coronoid process osteotomy knife for the ulna, comprising a first knife blade. The first knife blade includes a first blade body and a first handle. A first intersection point is formed at the connection between the first blade body and the first handle. The right side of the first blade body and the right side of the first handle intersect at the first intersection point, forming an angle α1 of 190-220°. In use, the first knife blade utilizes the right side of the first blade body to avoid obstruction by the protruding portion in the middle of the coronoid fossa, reaching the osteophyte on the coronoid process of the ulna. During the resection, the inner curved surface of the first blade body is used to remove the osteophyte into a smooth arc surface consistent with the arcuate contour of the coronoid process, leaving no step. This invention's coronoid process osteotomy knife for the ulna, by utilizing the right side of the first blade body to avoid obstruction by the wall of the coronoid fossa, reaches the "blind zone"; then, by using the inner curved surface of the first blade body to conform to the original arcuate contour of the coronoid process, it thoroughly removes the osteophyte, achieving complete cleaning of the inner and outer sides of the coronoid process, solving the problem of traditional knife blades being unable to completely remove osteophytes due to angle limitations.

A surgical instrument, and method for use, where the surgical instrument is configured to be inserted into a bone. The surgical instrument can include an elongate arm, a handle having a force application surface, and a working end. The working end can include a first blade, a second blade facing the first blade, and a slot extending longitudinally between the first blade and the second blade.

1. Name of the product in this design: Bone Carving Knife. 2. Purpose of this design: This design is used for human bone repair in surgical procedures. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

In view of various problems when a treatment that embeds an implant body or a treatment that embeds an embedded body such as an autologous tooth is performed, an osteotome for a dental treatment corresponding thereto or the like is provided. To implement this, an osteotome according to the present disclosure is an osteotome 60 used as an instrument which is embedded from a surface layer of a treatment area in a jaw region of a patient into a deep portion to apply an impact in expanding or compressing a bone so as to displace a position of a mucosa behind the treatment area and includes a body portion corresponding to a main body portion of the osteotome and an end portion 63 formed at a distal end of the body portion to displace the position of the mucosa. A diameter of the end portion 63 has a size appropriate for transplant of an autogenous tooth.

This application relates to the field of medical device technology, specifically to an extramedullary positioning distal femoral osteotomy device for knee replacement, comprising an osteotomy plate, an axial indicator, a rotating component, and a reference plate. The osteotomy plate has a reference end face and an abutment end face, with a cutting suture and pin holes provided on the reference end face. The axial indicator is rotatably mounted on the reference end face; the rotating component is rotatably mounted on the reference end face; the reference plate is slidably mounted on the rotating component, and the reference plate can slide on the rotating component in a direction away from or close to the rotation axis of the rotating component, with the reference plate perpendicular to the reference end face. In this application, the axial indicator determines the direction of the patient's femoral axis, ensuring that the movement of the osteotomy plate is consistent with the direction of the femoral axis, thereby improving the accuracy of the cutting position during surgery. The rotating component and the reference plate allow the surgeon to adjust according to the preoperatively determined angle of the prosthesis articular surface, enabling precise matching of the cutting suture angle with the prosthesis articular surface, further improving the precision of the surgery.

The utility model relates to the technical field of surgical supplies, and discloses a surgical knife which comprises a first knife head used for cervical vertebra canalis expanding door opening. The first tool bit comprises a first body part, a first flat part and a protruding part. One end of the first flat part is connected with the first main body part and is used for being inserted into a cut cervical vertebral plate; the protruding parts are connected with the first flat part, the protruding parts are located on the two sides of the first flat part in the thickness direction of the first flat part, and the protruding parts on the two sides are used for achieving the limiting effect and achieving the over-depth limiting function. Therefore, the first flat part is prevented from being inserted too deep, iatrogenic injury to the spinal cord is prevented, and medical negligence is avoided or reduced. And the lever can be used as a fulcrum of the lever, so that the slotted cervical vertebral plate can be conveniently pried open. In the operation process, after the ultrasonic osteotome is used for cutting the cervical vertebra vertebral plate and a gap is formed, the gap can be expanded through the first tool bit.

The invention relates to the field of medical instruments, in particular to a power assembly for an ultrasonic osteotome and the ultrasonic osteotome. A power assembly for an ultrasonic osteotome comprises a motor used for providing power for a tool bit, the tool bit is fixed to the front end of an amplitude-change pole, the amplitude-change pole receives torque output by the motor through a second linkage piece and a first linkage piece, the second linkage piece is provided with a linkage groove and is arranged on the amplitude-change pole, and the first linkage piece is arranged on the first linkage piece. The first linkage piece is provided with a linkage protrusion movably matched in the linkage groove, and the output end of the motor rotates to enable the linkage protrusion to do reciprocating motion in the axial direction of the amplitude-change pole. The first linkage piece moves in the axial direction of the amplitude-change pole under the action of the motor, so that the linkage protrusion moves in the axial direction of the amplitude-change pole and pushes the amplitude-change pole with the second linkage piece to move in the axial direction of the amplitude-change pole.

A joint revision surgical system is provided that includes: (a) an osteotome blade / surgical osteotome guide block assembly having: a centrally located cavity and a plurality of anterior osteotome blade guide slots; a shank trunnion fastening member mountable within the central cavity and fastened to the osteotome blade guide block; the L-shaped adjustable blade guide plate is movably positioned in the plurality of osteotome blades / surgical osteotome guide grooves positioned at the front part; and a plurality of posterior osteotome blade / surgical osteotome guide slots, the plurality of posterior osteotome blade / surgical osteotome guide slots for receiving an osteotome blade and a surgical osteotome; (b) a surgical ram assembly; (c) an osteotome blade / surgical osteotome locking handle assembly; and (d) a plurality of osteotome blades / surgical osteotomes including osteotome blades having flexible and rigid blade shafts; wherein the assembled osteotome blade / surgical osteotome guide block is attached to an implanted femoral stem to be removed by attaching the stem trunnion fastening member to a trunnion of the stem.

The utility model provides a double-channel endoscope drainage osteotome, and belongs to the technical field of medical instruments. The utility model provides a double-channel endoscopic drainage osteotome which comprises an osteotome body, a tool bit is arranged at the lower end of the osteotome body, a drainage groove is formed in the osteotome body, the drainage groove is formed in the length direction of the osteotome body, and the drainage groove extends to the upper end of the tool bit. According to the double-channel endoscope drainage osteotome, the drainage groove is formed in the length direction of the osteotome body, cleaning water can flow out of the body of a patient through the drainage groove, the cleaning water is prevented from being accumulated in the body of the patient, the drainage efficiency is improved, and the operation duration is shortened.

The present application relates to a kind of femur osteotomes, the femur osteotome includes: clamping assembly and guide plate assembly, the clamping assembly includes connected clamp head and clamping arm component, the clamping arm component has for clamping femur clamping channel, the size of the clamping channel is adjustable, the guide plate assembly includes osteotomy guide plate and first connecting component, the osteotomy guide plate is detachably connected with the clamp head by the first connecting component, osteotomy groove is provided on the osteotomy guide plate, and the groove wall of the osteotomy groove is orthogonal to the axial direction of the clamping channel.The femur osteotome of the present application is higher in accuracy, easy to assemble, and simple to operate.

An osteotome with replaceable blades. The osteotome includes a replaceable blade portion and a handle portion. The blade portion is detachably affixed to the handle portion. Replaceable blade portions are affixed to the reusable handle portion. The blade portions have a tool edge portion and blade shaft portion. The blade shaft portion extends between the base and a proximal end having an externally threaded portion. The handle portion has a hand grip portion and a handle shaft portion. A threaded coupler is provided. The proximal end of the blade shaft portion and the distal end of the handle shaft portion include complementary interlocking end pieces, which prevent rotation therebetween. An interior shaft and strike plate in the handle portion assure steel-to-steel contact from the strike plate to the sharp distal end.

The invention discloses an oral implant bone splitting chisel and a use method, the chisel comprises a holding part, a buffer area and a working head part which are distributed in a T-shaped structure; the holding part is a rod body and is provided with an anti-slip structure on the surface, and the axis is vertically and fixedly connected with the axis of the buffer area; the working head comprises a guide face and a guide blade, the splitting blade is of a wedge-shaped structure, a cutting edge is arc-shaped, arc-shaped transition faces are arranged on the two sides of the cutting edge, fillet transition is arranged at the tip end, the thickness of the cutting edge is gradually increased from the tip end to the root portion, and the holding portion and the buffer area are of an integral or detachable structure. The holding stability is improved through the T-shaped structure, bone tissue friction and damage are reduced through the design of the arc-shaped cutting edges and the round corners, the detachable working head can meet the requirements of different operation areas (a straight neck is used for an anterior tooth area, and a bent neck is used for a posterior tooth area), and multi-direction precise bone splitting is achieved; the use method is adaptive to different alveolar bone forms and bone cortex thicknesses, the operation steps are standard and controllable, the cleavage range is effectively controlled, the operation risk is reduced, the safety and convenience of the implant surgery are improved, and the device is suitable for various oral implant bone cleavage surgeries.

The utility model discloses a medical power osteotome which comprises an electric saw rod outer sleeve (1), one end of the electric saw rod outer sleeve (1) is connected with one end of an electric saw rod assembly, the other end of the electric saw rod assembly is provided with a knife protective sleeve (2), a driving shaft (3) is rotationally installed in the electric saw rod assembly, one end of the driving shaft (3) is provided with a cam connecting assembly, and the other end of the driving shaft (3) is provided with a knife protective sleeve (2). A connecting shaft (4) is installed in the electric saw rod outer sleeve (1), a cylindrical cam (5) is arranged on the connecting shaft (4), the cam connecting assembly is connected with the cylindrical cam (5), and a cutter (6) is installed at the other end of the driving shaft (3). According to the utility model, the use cost can be effectively reduced, and the problem of heat generation during working can be solved.

The utility model discloses a medical tool bit and an ultrasonic osteotome, and relates to the technical field of medical instruments, and the medical tool bit comprises a tool bit main body; the connecting part is arranged at one end of the tool bit body, external threads are arranged on the periphery of the connecting part, the external threads are used for being connected with a driving handle, and a rounded corner structure is arranged at the tooth bottom of the external threads. According to the technical scheme, the possibility that the tool bit is damaged is reduced.

The invention discloses an ultrasonic osteotome system which comprises a shell, an ultrasonic transducer, a tool bit and a temperature sensor. A first extension channel and a second extension channel which are communicated with each other are respectively arranged in the ultrasonic transducer and the cutter head, and the two ends of the first extension channel in the length direction of the shell are communicated; the second extension channel is through towards one end of the ultrasonic transducer in the length direction of the shell; the connecting part of the temperature sensor is connected with the shell, the extending part of the temperature sensor penetrates through the first extending channel and the second extending channel, and the detecting part of the temperature sensor is located in the second extending channel. The temperature sensor is additionally arranged in the ultrasonic osteotome system, the temperature of the osteotome head is measured through the detection part, and the measurement precision and the operation safety are improved. In addition, the temperature sensor is arranged in the ultrasonic transducer and the scalpel head in a penetrating mode, the temperature sensor can be protected, interference of the temperature sensor on use of the ultrasonic osteotome system can be prevented, and the operation safety is further improved.