Implant applying device

Abstract

An apparatus (100) includes an adapter (110), a guide (130), and a connector (120). The adapter includes a lumen (114) extending between a proximal end (110a) and a distal end (110b). The tubular portion (111) of the adapter comprises one or more protrusions (111c1) arranged towards the distal end of the adapter. A flange portion (113) of the adapter is disposed coaxially with the tubular portion of the proximal end of the adapter. And at least one group of cavities (113a) are arranged around the flange part along the circumferential direction. The guide member and at least one cavity of the flange portion of the adapter can be trimmed to set the front rake. A head (123) of the connector is located at a proximal end (120a) of the connector. At least part of the rod part (121) of the connector is arranged in the pipe cavity of the adapter through the flange part.

Description

Technical Field

[0001] This invention relates to a medical device applicator. More specifically, this invention relates to a bone implant applicator. Background Technology

[0002] Aging, injury, and disease can cause the bones, joints, and / or ligaments in the human body to become fragile. These injuries often manifest as a decline in bodily functions, thus limiting the patient's freedom of movement.

[0003] To repair these injuries, additional supports or prostheses can be surgically implanted to strengthen the affected bone and / or joint. Typically, a hammer is used to insert the prosthesis into the cavity of the damaged bone. Afterward, if necessary, the prosthesis can be connected to other components to form an artificial joint, restoring the patient's mobility.

[0004] However, the procedures described above using conventional instruments cannot precisely align the prosthesis during insertion into the bone cavity. Typically, the prosthesis is prone to slipping, sinking, and / or rotating during insertion. Furthermore, due to the use of a hammer, different operators apply varying impact forces when inserting the prosthesis into the bone cavity. Therefore, the application of uncontrolled forces greatly increases the risk of bone fracture beneath the prosthesis.

[0005] Therefore, there is a need for a device that can overcome the problems of traditional devices. Summary of the Invention

[0006] Specific embodiments of the present invention will be described below with reference to the accompanying drawings. However, it should be understood that the disclosed embodiments are merely examples of the present invention, and the present invention can be implemented in various forms. To avoid obscuring the present invention with unnecessary detail, well-known functions or structures are not described in detail. Therefore, the specific structural and functional details disclosed in the present invention should not be interpreted as limiting, but only as the basis for the claims and as a representative basis for guiding those skilled in the art to apply the present invention in various ways in any suitable detailed structure.

[0007] This invention relates to a device comprising an adapter, a guide, and a connector. The adapter includes a proximal end, a distal end, and a lumen extending between the proximal and distal ends. The tubular portion of the adapter includes one or more protrusions facing the distal end of the adapter. The protrusions detachably connect the tubular portion to an implant. At least a portion of the tubular portion defines the lumen of the adapter. A flange of the adapter is coaxially disposed with respect to the tubular portion at the proximal end of the adapter. At least a portion of the flange defines the lumen of the adapter. At least one set of cavities is circumferentially disposed along the flange, each cavity offset relative to the other cavities. Each of the plurality of cavities corresponds to a tilt angle formed at the implantation site by the implant connected to the tubular portion of the adapter. The guide is detachably connected to at least one cavity of the flange of the adapter for setting the tilt angle. The connector includes a proximal end and a distal end. A head of the connector is disposed at the proximal end of the connector. The rod portion of the connector passes through the flange portion and is at least partially disposed within the lumen of the adapter. The distal end of the rod portion is operatively connected to the implant to insert the implant into a bone cavity. Attached Figure Description

[0008] Reading the accompanying drawings will help to better understand the above overview and the following detailed description of exemplary embodiments. The drawings illustrate exemplary structures of the invention to illustrate its content. However, the invention is not limited to the specific methods and apparatus disclosed. Furthermore, those skilled in the art will understand that the drawings are not drawn to scale.

[0009] Figure 1 An apparatus 100 according to an embodiment of the present invention is shown.

[0010] Figure 2 An adapter 110, connector 120, and guide 130 of a device 100 according to an embodiment of the present invention are shown.

[0011] Figure 2a A cross-sectional view of the adapter 110 of the device 100 in one embodiment of the present invention is shown.

[0012] Figure 2b The connection method between the adapter 110 of the device 100 and the implant 200 is shown in one embodiment of the present invention.

[0013] Figure 2 b1 shows a longitudinal cross-section of an implant 200 according to an embodiment of the present invention.

[0014] Figure 2c and Figure 2e An adapter 110 for anterior surgical approach is shown in one embodiment of the present invention.

[0015] Figure 2d and Figure 2f An adapter 110 for a posterior surgical approach is shown in one embodiment of the present invention.

[0016] Figure 3 A cross-sectional view of the connection between the adapter 110 and the connector 120 of the device 100 in one embodiment of the present invention is shown.

[0017] Figure 3a A cross-sectional view of the adapter 110 of the device 100 connected to the connector 120 is shown in another embodiment of the present invention.

[0018] Figure 3a1 A connector 120 according to another embodiment of the present invention is shown.

[0019] Figure 4 and Figure 4a A device 100 with a forward tilt angle of 0 degrees is shown in one embodiment of the present invention.

[0020] Figure 5 and Figure 5a A device 100 with a forward tilt angle of 20 degrees is shown in one embodiment of the present invention.

[0021] Figure 6 and Figure 6a An impactor 160 of a device 100 according to an embodiment of the present invention is shown, the impactor having a first subunit 160a and a second subunit 160b.

[0022] Figure 7 and Figure 7a An impactor 160 of a device 100 according to an embodiment of the present invention is shown, the impactor having a first subunit 160a and a second subunit 160b.

[0023] Figure 8 A method 300 for assembling an apparatus 100 according to an embodiment of the present invention is shown.

[0024] Figure 9 An implantation procedure 400 for inserting an implant 200 into an implantation site is shown in one embodiment of the present invention. Detailed Implementation

[0025] Before describing the invention in detail, certain words or phrases used in the invention will be defined: the terms "comprising" and "including" and their derivatives all mean including but not limited to; the term "or" is inclusive, meaning and / or; the phrases "connected to" and "related to" and their derivatives may mean including, contained in, interconnected with, contained, included in, connected to or connected to, coupled with, communicable with, cooperating with, interleaved with, juxtaposed with, near, bound to, having the properties of, etc. Definitions of certain words and phrases are provided throughout the invention, and those skilled in the art will understand that these definitions apply in many cases (if not most cases) to these defined words and phrases that have been used or will be used.

[0026] The terms "an embodiment," "a particular embodiment," or similar expressions used in this specification refer to specific features, structures, or characteristics associated with said embodiment that are included in at least one embodiment. Therefore, "in one embodiment," "a particular embodiment," and similar expressions appearing in this specification may (but do not necessarily) refer to the same embodiment, and unless expressly stated otherwise, they refer to "one or more embodiments, but not all embodiments." Unless expressly stated otherwise, "comprising," "including," "having," and variations thereof mean "including but not limited to." Unless expressly stated otherwise, the listed items do not imply that any or all of them are mutually exclusive and / or mutually inclusive. Unless expressly stated otherwise, "an," "a," and "described" also mean "one or more."

[0027] While the operations of exemplary embodiments of the methods disclosed in this invention may be described in a specific order for ease of description, it should be understood that the embodiments disclosed in this invention may include an order of operations different from the specific order disclosed. For example, in some cases, the operations described in sequence may be rearranged or performed simultaneously. Furthermore, the descriptions and disclosures associated with a particular embodiment are not limited to that embodiment and can be applied to any embodiment disclosed in this invention. Moreover, for simplicity, the accompanying drawings may not show various ways in which the systems, methods, and apparatuses disclosed in this invention are used in combination with other systems, methods, and apparatuses.

[0028] Furthermore, the features, advantages, and characteristics of the embodiments described can be combined in any suitable manner. Those skilled in the art will understand that these embodiments can be practiced without possessing one or more specific features or advantages of a particular embodiment. In other instances, some embodiments may have other features and advantages that may not be present in all embodiments. These features and advantages will become more apparent from the following description and the allocated claims, or may be learned by practicing the embodiments described below.

[0029] This invention relates to an implant delivery device (or apparatus). The device is used to align (or orient) an implant and insert it into a bone cavity (or implantation site). For example, the device is used to insert a stem prosthesis into a cavity of the femur.

[0030] Although the present invention has been described using a stem prosthesis as an example, the teachings of the present invention are equally applicable to other bone implants, and all such implants are within the scope of the teachings of the present invention.

[0031] The device of the present invention includes an adapter detachably connected to an implant. The adapter is provided with one or more indicators that enable a user to correctly orient and attach the implant to the adapter. The indicators indicate whether the implant is inside or outside the adapter.

[0032] At least two different adapters are available for the surgeon's use, one for the anterior surgical approach and the other for the posterior surgical approach. In other words, the adapters have unique medial and / or lateral markings to allow the surgeon to select the appropriate adapter based on the determined intraosseous implantation surgical approach. The surgical approach and the corresponding adapter are determined by the surgeon based on the patient's specific condition.

[0033] The adapter also includes at least one protrusion. The protrusion helps maintain the orientation of the implant relative to the adapter during implantation. In other words, the protrusion prevents the implant from rotating relative to the adapter during implantation.

[0034] The adapter also helps to set the rotational (or angular) direction of the implant relative to the implantation site during implantation. The adapter of the device includes several cavities, at least partially extending circumferentially along the adapter. Each cavity of the adapter corresponds to a predetermined anteversion angle. At least several cavities are arranged opposite each other (e.g., mirror images of each other), thereby allowing the surgeon to use the device for either limb (i.e., left or right limb) as needed.

[0035] The device also includes a guide and an impactor. By selectively orienting and connecting the guide to a cavity of the adapter, the guide helps align the adapter and implant of the device with the implantation site, thereby setting the anteversion angle as needed. During implantation, the guide is aligned with at least one anatomical landmark feature of the implantation site (e.g., the long axis of the tibia), thereby aligning the adapter and implant with the implantation site.

[0036] The impactor allows the user to apply a constant force to push the implant into the implantation site, regardless of the person using the device.

[0037] Now refer to the attached diagram, as follows: Figure 1The illustration shows an exemplary embodiment of device 100. Device 100 may include a plurality of components operatively connected to each other. For example... Figure 1 As shown, in an exemplary embodiment, the device 100 includes an adapter 110, a connector 120, a guide 130, an elongated member 140, one or more stops 150, and at least one impactor 160.

[0038] like Figure 2 The diagram shows an adapter 110, connector 120, and guide 130 of a device 100 according to an embodiment of the present invention. The adapter 110 of the device 100 includes a proximal end 110a and a distal end 110b. The adapter 110 may be made of metal or metal alloy, including but not limited to cobalt-chromium alloy, titanium, stainless steel, etc. Alternatively, the adapter 110 may be made of polymer materials, including but not limited to polyphenylene sulfone (PPSU), polyoxymethylene copolymer (POM-C), carbon fiber, reinforced plastics, etc. In an exemplary embodiment, the adapter 110 is made of biocompatible stainless steel.

[0039] The adapter 110 may include a tubular portion 111 located at the distal end 110b of the adapter 110 and a flange portion 113 located at the proximal end 110a of the adapter 110. The tubular portion 111 and the flange portion 113 may be detachably connected to each other by (but not limited to) mechanical fasteners, metal / plastic / composite / hybrid material connection methods (such as welding, press-fit, threaded connection, etc.). Alternatively, the tubular portion 111 and the flange portion 113 may form an integral structure.

[0040] The tubular portion 111 and the flange portion 113 may together form (or define) the lumen 114 (e.g. Figure 2a As shown, a lumen 114 extends from the proximal end 110a and the distal end 110b of the adapter 110. The lumen 114 of the adapter 110 may be configured to at least partially receive the connector 120 (described below). In an exemplary embodiment, the adapter 110 includes a circular lumen 114.

[0041] The tubular portion 111 has a length of at least 10 mm and a diameter of at least 2 mm. In one exemplary embodiment, the length and diameter of the tubular portion 111 are 107 mm and 15 mm, respectively. The tubular portion 111 can have any shape, including but not limited to cylindrical, elliptical, etc.

[0042] The tubular portion 111 includes one or more parts. In one exemplary embodiment, as shown... Figure 2 As shown, the tubular portion 111 includes three parts: a first portion 111a, a second portion 111b, and a third portion 111c. The first portion 111a faces the proximal end 110a and is adjacent to the flange portion 113. In an exemplary embodiment, as... Figure 2As shown, the first part 111a is cylindrical, which facilitates user operation and interaction with the adapter 110.

[0043] The first portion 111a, facing the proximal end 110a, includes a first engagement portion 111a1, at least partially extending along the length of the first portion 111a. When the connector 120 is inserted into the lumen 114 of the adapter 110 (as described below), the first engagement portion 111a1 temporarily engages with the connector 120. During implantation, the first engagement portion 111a1 prevents the connector 120 from being accidentally pulled out / retracted. In an exemplary embodiment, as... Figure 2a As shown, the first joint 111a1 includes a plurality of internal threads on the inner surface of the first part 111a (i.e., within the cavity 114 defined by the first part 111a of the tubular part 111).

[0044] The first joint 111a1 further assists the surgeon in selectively removing the connector 120 (described below) from the lumen 114 of the adapter 110 to clean / disinfect / repair the device 100 after / before implantation.

[0045] The second part 111b is located between the first part 111a and the third part 111c. Due to the presence of the second part 111b, the connector 120 can rotate freely within the lumen 114 of the adapter 110, thereby allowing the surgeon to insert the implant 200 (such as...). Figure 2b (As shown) is connected to connector 120.

[0046] Additional or optional, such as Figure 2 As shown, the second portion 111b of the tubular portion 111 has one or more cuts 111b1, thereby at least partially exposing the lumen 114 below the tubular portion 111. The cuts 111b1 can have any predetermined shape and / or angle. In an exemplary embodiment, as shown... Figure 2 and Figure 2a As shown, the second part 111b includes two through rounded rectangular cutouts 111b1 with opposite diameters, the cutouts being perpendicular to the lumen 114 of the adapter 110. The cutouts 111b1 allow the connector 120 to rotate freely within the lumen 114 of the adapter 110 without slipping out of the lumen 114 of the adapter 110 (as described below).

[0047] The third part 111c is disposed toward the distal end 110b and adjacent to the second part 111b. The third part 111c has one or more protrusions 111c1 at the distal end 110b. The protrusions 111c1 are connected to the third part 111c of the adapter 110 by means including but not limited to mechanical fasteners, metal / plastic / composite / hybrid material connections (e.g., welding, press-fit, threaded connections, etc.). In an exemplary embodiment, as... Figure 2As shown, the two protrusions 111c1 are integrally formed with the tubular portion 111 at the distal end 110b of the adapter 110. The protrusions 111c1 restrict the rotation of the implant 200 relative to the adapter 110, thereby maintaining the preset orientation of the implant 200 during implantation.

[0048] like Figure 2b The illustration shows an exemplary embodiment of an implant 200 connected to an adapter 110. The implant 200 is made of materials including, but not limited to, stainless steel, titanium, and cobalt-chromium alloys. The implant 200 can be configured for implantation into a bone cavity (not shown), for example, into the medullary canal of the femur. The implant 200 may include a neck 201 and a stem 203. A predetermined angle may be formed between the neck 201 and the stem 203, the angle corresponding to the femoral neck angle of the patient. In one embodiment, the predetermined angle ranges from 110° to 150°.

[0049] like Figure 2b As shown, in an exemplary embodiment, the stem 203 of the implant 200 is detachably connected to the tubular portion 111 of the adapter 110. Figure 2b As shown, the stem 203 of the implant 200 has one or more first recesses 203a, each corresponding to a protrusion 111c1 of the adapter 110. Therefore, when the implant 200 is connected to the adapter 110, the protrusion 111c1 of the adapter 110 engages with the corresponding first recess 203a of the stem 203. The engagement between the protrusion 111c1 of the adapter 110 and the first recess 203a of the implant 200 restricts the rotation of the implant 200 relative to the adapter 110, thereby maintaining the preset orientation of the implant 200 during implantation.

[0050] Additionally or optionally, in order to properly align the implant 200 with the adapter 110, the tubular portion 111 may be provided with at least one first indicator 111c2.

[0051] In one exemplary embodiment, such as Figure 2 and Figure 2b As shown, the first indicator 111c2 is disposed above the third portion 111c of the tubular portion 111. The first indicator 111c2 indicates the position relative to the implant 200 of the adapter 110 and / or the direction of the neck 201 of the implant 200.

[0052] In one embodiment, the tubular portion 111 of the adapter 110 is provided with a second indicator (not shown) similar to the first indicator 111c2. In an exemplary embodiment, the second indicator is disposed opposite to the first indicator 111c2. The first indicator 111c2 and the second indicator enable the surgeon to implant the implant 200 into either limb of the patient (i.e., the right or left limb) using the same adapter 110 as needed. For example, the surgeon can refer to the first indicator 111c2 when implanting the implant 200 into the femur of the right limb, and can refer to the second indicator when implanting the implant 200 into the femur of the left limb.

[0053] In one embodiment, the tubular portion 111 is provided with a first indicator 111c2. In another embodiment, the tubular portion 111 is provided with a second indicator. In yet another alternative embodiment, the tubular portion 111 is provided with both a first indicator 111c2 and a second indicator.

[0054] Although the tubular portion 111 is described as having a cylindrical structure, other functionally equivalent shapes of the tubular portion 111 are also within the scope of this invention. For example, the tubular portion 111 may include a stepped rod-like structure.

[0055] like Figure 2 As shown, the flange portion 113 of the adapter 110 is disposed axially toward the proximal end 110a along the tubular portion 111. The flange portion 113 has a length of at least 5 mm and a diameter of at least 10 mm. In an exemplary embodiment, the length and diameter of the flange portion 113 are 12.6 mm and 37.8 mm, respectively.

[0056] like Figure 2 As shown, in an exemplary embodiment, the flange portion 113 is cylindrical. Although the flange portion 113 is described as cylindrical, other functionally equivalent shapes of the flange portion 113 are also within the scope of the teachings of this invention.

[0057] The flange portion 113 may be provided with at least one set of cavities 113a for accommodating the guide member 130 (described below). The cavities 113a may be staggered with each other in the circumferential direction, such that each cavity 113a corresponds to a preset tilt angle (described below). The tilt angle ranges from -50° to 80°.

[0058] Although the example description of adapter 110 shows a cavity 113a provided on the flange portion 113, the cavity 113a may also be provided on the tubular portion 111, which is also within the scope of the present invention.

[0059] The tilt angle of cavity 113a can extend (or increase) in a preset direction, i.e., clockwise or counterclockwise (as described below). Alternatively, the tilt angle of cavity 113a can extend (or increase) towards the inside or outside of adapter 110 (as described below). The inner plane corresponds to the direction of the neck 201 of implant 200.

[0060] like Figure 2 As shown, in an exemplary embodiment, the flange 113 is provided with a set of four cavities 113a. In one embodiment, the cavities 113a are offset from each other by 10° in the circumferential direction. Therefore, the cavities 113a correspond to forward tilt angles from 0° to 30°, that is, when viewed from the proximal end 110a of the adapter 110, each cavity 113a corresponds to 0°, 10°, 20° and 30° in the clockwise direction, respectively.

[0061] In another exemplary embodiment (not shown), the flange portion 113 is provided with two sets of four cavities 113a each, namely a first set of cavities 113a and a second set of cavities 113a (not shown). Figure 2 As shown, the first set of cavities 113a is arranged circumferentially along the flange 113. The second set of cavities 113a is arranged opposite to the four cavities 113a in the first set. Therefore, the flange 113 has a total of eight cavities 113a. The first set of cavities 113a and the second set of cavities 113a allow the surgeon to insert and align the implant 200 with any limb of the patient (i.e., the right or left limb) using the same adapter 110 as needed.

[0062] In one embodiment, the flange portion 113 is provided with at least one third indicator 113b (e.g., Figure 2 and Figure 2c (as shown) and the fourth indicator 113c (as shown) Figure 2d (As shown). The third indicator 113b and the fourth indicator 113c are positioned opposite each other. The preset direction of the third indicator 113b and / or the fourth indicator 113c corresponds to the tilt angle (as described below), enabling the surgeon to determine the alignment of the inner and outer sides of the implant 200 with the inner and outer sides of the adapter 110 during implantation.

[0063] In one embodiment, the flange 113 is provided with a third indicator 113b. In another embodiment, the flange 113 is provided with a fourth indicator 113c. In another alternative embodiment, the flange 113 is provided with a third indicator 113b and a fourth indicator 113c.

[0064] like Figure 2 and Figure 2c As shown, in an exemplary embodiment, the third indicator 113b has an "MEDIAL" mark on the flange 113 to indicate the inside of the adapter 110. Figure 2dAs shown, in an exemplary embodiment, the fourth indicator 113c has a "LATERAL" mark on the flange 113 to indicate the outer side of the adapter 110. The direction of the medial and / or lateral marks relative to the anteversion angle allows the surgeon to select the adapter 110 according to the anterior or posterior surgical approach in order to insert the implant 200 into the bone cavity (described below).

[0065] The anteversion angle of cavity 113a and the directionality associated with the "medial" and "lateral" markings help the surgeon determine the surgical approach using adapter 110. For example, Figure 2c and Figure 2d The diagram shows two different orientations of adapter 110. Figure 2c and Figure 2d The "inner" and "outer" markings on the adapter 110 are interchanged. Accordingly, the first indicator 111c2 (and the second indicator) indicating the direction of the implant 200 towards the neck 201 are also reversed. Therefore, Figure 2c The adapter 110 shown illustrates that the tilt angle of cavity 113a gradually increases from the "outer" mark to the "inner" mark. Conversely, Figure 2d The adapter 110 shown illustrates that the tilt angle of cavity 113a gradually increases from the "inner" mark to the "outer" mark. Therefore, Figure 2c The adapter 110 shown is used by the surgeon for the anterior surgical approach, while Figure 2d The adapter 110 shown is used by surgeons for posterior surgical approaches.

[0066] In another embodiment, such as Figure 2e and Figure 2f As shown, the direction of increasing the tilt angle of adapter 110 is reversed (instead of swapping the "inner" marking (third indicator 113b) and the "outer" marking (fourth indicator 113c) of adapter 110 and swapping the direction of the first indicator 111c2 as described above). Therefore, Figure 2e The adapter 110 shown illustrates that the tilt angle of cavity 113a decreases from the "inner" mark to the "outer" mark. Conversely, Figure 2f The adapter 110 shown illustrates that the tilt angle of cavity 113a increases from the "inner" mark to the "outer" mark. Therefore, Figure 2e The adapter 110 shown is used by the surgeon for the anterior surgical approach. Figure 2f The adapter 110 shown is used by surgeons for posterior surgical approaches.

[0067] Although the direction of the anteversion angle is described using both "medial" and "lateral" markings, a surgeon may only need to use one of these markings to determine whether the adapter 110 is for an anterior or posterior surgical approach. Therefore, one or both markings can be used on the flange 113 of the adapter 110.

[0068] like Figure 2 The illustration shows an embodiment of connector 120. Connector 120 may be made of metal or metal alloy, including but not limited to any medical steel, cobalt-chromium alloy, titanium, stainless steel, etc. Alternatively, connector 120 may be made of polymer materials, including but not limited to polyphenylene sulfone (PPSU), polyoxymethylene copolymer (POM-C), carbon fiber, reinforced plastics, etc. In an exemplary embodiment, connector 120 is made of biocompatible stainless steel. Connector 120 may include a shank 121 and a head 123. Connector 120 includes a proximal end 120a and a distal end 120b. Head 123 may be disposed at proximal end 120a, and shank 121 may be disposed at distal end 120b. Shank 121 and head 123 may be detachably connected or fixedly connected together. Alternatively, shank 121 and head 123 may form an integral structure.

[0069] The shape of the rod 121 can correspond to the shape of the lumen 114 of the adapter 110. The length and diameter of the rod 121 can be determined based on the length and diameter of the lumen 114 of the adapter 110. In an exemplary embodiment, the length and diameter of the rod 121 are 111 mm and 6 mm, respectively.

[0070] The rod portion 121 of the connector 120 is at least partially disposed within the cavity 114 of the adapter 110 via a flange portion (113). Figure 3 As shown, in an exemplary embodiment, the rod portion 121 of the connector 120 is disposed within the cavity 114 of the adapter 110, such that the distal end 120b of the connector 120 extends from the distal end 110b of the adapter 110.

[0071] The distal end 120b (and / or the stem 121) of connector 120 is operatively connectable to implant 200. For example... Figure 2As shown in b1, the stem 203 of the implant 200 has a second recess 203b for receiving the distal end 120b of the connector 120. In an exemplary embodiment not shown, the distal end 120b of the connector 120 and the second recess 203b of the stem 203 of the implant 200 each have corresponding threads, such that the distal end 120b of the connector 120 can be fastened into the second recess 203b of the stem 203. The surgeon can connect / disconnect the connector 120 and the implant 200 by tightening / loosening the connector 120. Other functionally equivalent mechanical connections for connecting the connector 120 and the implant 200 are within the scope of the teachings of this invention.

[0072] like Figure 2 As shown, the rod portion 121 is provided with a second engagement portion 121a, at least partially extending along the length of the rod portion 121. The second engagement portion 121a is configured to temporarily engage with a first engagement portion 111a1 of the adapter 110. In an exemplary embodiment, the second engagement portion 121a includes a plurality of external threads corresponding to the internal threads of the first engagement portion 111a1 of the adapter 110.

[0073] The rod 121 of connector 120 is at least partially inserted into the lumen 114 of adapter 110 by sliding the rod 121 past the flange 113. When at least part of the rod 121 is inserted into the lumen 114, connector 120 can switch between a first configuration and a second configuration depending on the position of the second engagement 121a relative to the first engagement 111a1. In the first configuration of connector 120, the second engagement 121a is located proximal to the first engagement 111a1, i.e., the second engagement 121a is located within the first portion 111a of adapter 110. In the first configuration of connector 120, connector 120 can slide retract from adapter 110, for example, for cleaning and disinfection device 100.

[0074] like Figure 3 As shown, in the second configuration of connector 120, the second engagement 121a is located at the distal end of the first engagement 111a, that is, the second engagement 121a is located within the second portion 111b of adapter 110. In the second configuration of connector 120, connector 120 can rotate freely within the lumen 114 of adapter 110, allowing the surgeon to rotate connector 120 before initiating the implantation procedure to connect implant 200 to connector 120. In the second configuration of connector 120, because the first engagement 111a of adapter 110 obstructs the second engagement 121a of connector 120, connector 120 cannot slide back from adapter 110, thereby preventing connector 120 from accidentally detaching from adapter 110 during the implantation procedure.

[0075] To switch connector 120 between a first configuration and a second configuration, the second engagement portion 121a is first physically engaged with the first engagement portion 111a1, and then a torque is applied to rotate the second engagement portion 121a relative to the first engagement portion 111a1. Thus, the temporary engagement between the first engagement portion 111a1 and the second engagement portion 121a allows connector 120 to switch between the first and second configurations. In an exemplary embodiment, a torque is applied to connector 120 in a clockwise direction to switch connector 120 from the first configuration to the second configuration, and vice versa.

[0076] In another exemplary embodiment, such as Figure 3a and Figure 3a1 As shown, the first engagement portion 121a includes at least one plunger (or other functionally equivalent device), and the second engagement portion 121a includes a protrusion (or other functionally equivalent device). In this embodiment, the connector 120 is switched between a first configuration and a second configuration by manually pulling / pushing the protrusion of the connector 120 using the plunger.

[0077] Although the connection between the first joint 111a1 and the second joint 121a is described by embodiments such as threads, protrusion-plunger portions, etc., other functionally equivalent methods are also within the scope of the teachings of this invention.

[0078] The head 123 of connector 120 facilitates interaction between the surgeon and connector 120, for example, enabling the surgeon to apply torque to connector 120. Therefore, the head 123 of connector 120 allows the surgeon to rotate connector 120, thereby switching connector 120 between a first configuration and a second configuration, and connecting connector 120 to implant 200. Accordingly, the head 123 of connector 120 may be ergonomically shaped so that the user can comfortably grasp and manipulate (e.g., rotate) head 123. Figure 2 In the exemplary embodiment shown, the head 123 of the connector 120 is shaped like a roller with grooves.

[0079] like Figure 3 and Figure 3a As shown, the head 123 is provided with at least one cavity 123a. The cavity 123a is used to receive the elongated member 140 of the device 100 (described below).

[0080] The shape of the guide member 130 may include, but is not limited to, cylindrical, spherical, hexagonal, elliptical, triangular, etc. In one exemplary embodiment, as... Figure 2 As shown, the guide member 130 is rod-shaped. The guide member 130 can be used to align the device 100 and the implant 200 with the implantation site and with reference to the patient's anatomy (described later).

[0081] The guide member 130 may be provided with at least one axial protrusion 131. In an exemplary embodiment, the axial protrusion 131 is integrally formed with the guide member 130.

[0082] An axial protrusion 131 of the guide 130 is detachably connected to at least one cavity 113a of the adapter 110. In one exemplary embodiment, the axial protrusion 131 and the cavity 113a are provided with complementary threads, such that the axial protrusion 131 screws into one cavity 113a of the adapter 110. In another embodiment, the axial protrusion 131 snaps into one cavity 113a of the adapter 110. Other methods of connecting the guide 130 to the cavity 113a of the adapter 110 are within the scope of this invention.

[0083] Additional or optional, such as Figure 2 As shown, the guide 130 may have a rough surface 133, at least partially extending along the length of the guide 130. The rough surface 133 allows the surgeon to easily manipulate and / or hold the guide 130.

[0084] Figure 4 An exemplary embodiment (as described above) showing the coupling of device 100 with implant 200 is partially illustrated. Figure 4 As shown, the guide 130 is coupled to a cavity 113a of the adapter 110, and the forward tilt angle corresponding to the cavity 113a is zero degrees.

[0085] like Figure 4a The image shown is of device 100 as seen by a surgeon in one embodiment (corresponding to, for example, ...). Figure 4 A view of the configuration shown. Figure 4a An imaginary axis "xx" parallel to the patient's coronal plane (not shown) is also shown. The surgeon rotates the device 100 to align the guide 130 perpendicular to the imaginary axis "xx". In other words, the surgeon aligns the guide 130 parallel to the long axis of the tibia with the tibia flexed and kept perpendicular to the femur. Figure 4 and Figure 4a As shown, this alignment of the guide 130 results in the neck 201 of the implant 200 having a zero-degree forward tilt angle with the imaginary axis "xx".

[0086] The anteversion angle (or femoral anteversion angle) plays a crucial role in successful hip replacement surgery because it affects the torsional forces acting on the femur. Any deviation in the anteversion angle determined by the surgeon for each patient can alter factors such as the length of the moving arm and the joint load, negatively impacting the biomechanics of the hip joint.

[0087] and Figure 4 similar, Figure 5An exemplary embodiment (as described above) showing the connection between the device 100 and the implant 200 is partially illustrated. Figure 5 As shown, the guide 130 is connected to a cavity 113a of the adapter 110, and the forward tilt angle corresponding to the cavity 113a is 20 degrees.

[0088] like Figure 5a The image shown is of device 100 as seen by a surgeon in one embodiment (corresponding to...). Figure 5 A view of the configuration shown. The surgeon rotates the device 100 to align the guide 130 perpendicular to the imaginary axis "xx". In other words, with the tibia flexed and kept perpendicular to the femur, the surgeon aligns the guide 130 parallel to the long axis of the tibia. Figure 5 and Figure 5a As shown, this alignment of the guide 130 results in a forward tilt angle of 20 degrees between the neck 201 of the implant 200 and the imaginary axis "xx".

[0089] like Figure 4 , Figure 4a , Figure 5 and Figure 5a As shown, the connection between the axial projection 131 of the guide 130 and the cavity 113a of the adapter 110 allows the surgeon to set a preset tilt angle of the implant 200 for each patient as needed.

[0090] Although the apparatus 100 of the present invention has been described above with two examples of camber angles, the apparatus 100 of the present invention can be used with any number of camber angles, which is still within the teachings of the present invention.

[0091] like Figure 1 As shown, the elongated member 140 includes a proximal end 140a and a distal end 140b. The elongated member 140 may have a predetermined shape, including but not limited to a cylinder, a sphere, a hexagon, an ellipse, a triangle, etc. In an exemplary embodiment, the elongated member 140 is cylindrical. The length of the elongated member 140 is at least 100 mm. The diameter of the elongated member 140 is at least 5 mm. In an exemplary embodiment, the length and diameter of the elongated member 140 are 241 mm and 10 mm, respectively.

[0092] like Figure 3 and Figure 3a As shown, the distal end 140b of the elongated member 140 can be detachably connected to the cavity 123a of the head 123 of the connector 120 by means of threads, snaps, etc. Alternatively, the distal end 140b of the elongated member 140 can be fixedly connected to the cavity 123a of the head 123 of the connector 120. Therefore, the surgeon can rotate the connector 120 by rotating the elongated member 140.

[0093] like Figure 1As shown, the stop 150 can be connected to the proximal end 140a of the elongated member 140 by means of press-fit, snap-fit, welding, etc. The stop 150 may have a preset shape, including but not limited to cylindrical, spherical, hexagonal, elliptical, triangular, etc. Figure 1 As shown, in an exemplary embodiment, two cylindrical stops 150 (i.e., first stop 150a and second stop 150b) are connected to the proximal end 140a of the elongated member 140.

[0094] The first stop 150a may be disposed near the second stop 150b. The first stop 150a may be made of metal or a metal alloy, including but not limited to cobalt-chromium alloy, titanium, stainless steel, etc. In an exemplary embodiment, the first stop 150a is made of stainless steel. The length of the first stop 150a is at least 1 mm. The diameter of the first stop 150a is at least 5 mm. In an exemplary embodiment, the length and diameter of the first stop 150a are 20 mm and 25.5 mm, respectively.

[0095] Optionally, the first stop 150a enables a surgeon to use a hammer or other similar tool to strike the first stop 150a of the device 100 to insert the implant 200 into the bone cavity. In an exemplary embodiment, the force from the hammer is transmitted from the first stop 150a to the head 123 of the connector 120 via an elongated member 140.

[0096] The second stop 150b may be made of materials including, but not limited to, silicone, plastic, any load-bearing gel, polymeric material, elastomer, etc. Alternatively, the second stop 150b may include an elastic element. In one exemplary embodiment, the second stop 150b is made of a medical-grade acetal copolymer. The second stop 150b has a length of at least 5 mm and a diameter of at least 2 mm. In one exemplary embodiment, the length and diameter of the second stop 150b are 43.5 mm and 25.5 mm, respectively. The second stop 150b helps absorb any residual force from the impactor 160 (as described below).

[0097] like Figure 1 As shown, the impactor 160 is slidably disposed around the elongated member 140, located between the stop 150 and the head 123 of the connector 120. The impactor 160 is ergonomically shaped for ease of use. The impactor 160 may be made of metal or metal alloy, including but not limited to cobalt-chromium alloy, titanium, stainless steel, etc. In an exemplary embodiment, as... Figure 1 As shown, the impactor 160 is made of biocompatible stainless steel.

[0098] Low-density / low-quality bone (e.g., osteoporotic bone) is more prone to fracture under greater external forces. High-density / high-quality bone (e.g., normal / sclerotic bone) is more resistant to fracture under greater external forces. Therefore, based on the bone density / quality at the implantation site, an appropriate weight of impactor 160 is selected, and implant 200 is implanted into the bone cavity (see below for details).

[0099] like Figure 1 As shown, in one exemplary embodiment, the impactor 160 is a one-piece structure. In one exemplary embodiment, the impactor 160 weighs 1013 g and is used for osteoporotic bone. In another exemplary embodiment, the impactor 160 weighs 1457 g and is used for sclerotic bone.

[0100] The surgeon slides the impactor 160 to impact the head 123 of the connector 120, thereby transmitting a preset amount of force from the impactor 160 to the connector 120. The connector 120 transmits the preset amount of force to the implant 200, thereby enabling the implant 200 to be pushed into the bone cavity of the implantation site.

[0101] The preset force is at least proportional to the weight of the impactor 160 and / or the distance between the stop 150 and the connector 120. This distance is at least 80 mm. In one exemplary embodiment, the distance between the stop 150 and the connector 120 is 171.5 mm. The impactor 160 allows the user to apply a constant force to the implant 200, regardless of the user's input.

[0102] The surgeon slides the impactor 160 on the elongated member 140, moving it back and forth between the connector 120 and the stopper 150. Thus, when the impactor 160 returns from the connector 120 to the second stopper 150b, the second stopper 150b absorbs any residual force from the impactor 160.

[0103] In another embodiment, such as Figure 6 and Figure 6a As shown, the impactor 160 comprises two or more sub-units, such as a first sub-unit 160a and a second sub-unit 160b. The weight of the first sub-unit 160a and the second sub-unit 160b of the impactor 160 can be preset according to user requirements, at least 200 g. The first sub-unit 160a and the second sub-unit 160b of the impactor 160 can be selectively assembled onto the elongated member 140 according to the bone density and / or bone quality of the implantation site to obtain the required weight (or force) of the impactor 160.

[0104] The first subunit 160a is disposed adjacent to the second subunit 160b. The first subunit 160a and the second subunit 160b are detachably connected. In an exemplary embodiment, as shown... Figure 6a and Figure 7aAs shown, the second subunit 160b is fixed to the threaded portion 160a1 of the first subunit 160a. The manner in which the first subunit 160a and the second subunit 160b are connected to each other is within the scope of the teachings of this invention.

[0105] The impactor 160 can be switched between a first configuration and a second configuration as needed by the surgeon. In the first configuration of the impactor 160, the first subunit 160a and the second subunit 160b are interconnected and configured to slide on the elongated member 140. In the first configuration of the impactor 160, the impactor 160 is used for sclerotic bone.

[0106] In a second configuration of the impactor 160, the second subunit 160b is separated from the first subunit 160a. Furthermore, the first subunit 160a is reversibly abutted next to the second stop 150b. Therefore, only the second subunit 160b can slide past the elongated member 140. In this second configuration of the impactor 160, the impactor 160 is used for osteoporosis.

[0107] The first subunit 160a can be reversibly docked via a docking device 161 near the stop 150. In an exemplary embodiment, as shown... Figure 6 and Figure 6a As shown, the docking device 161 includes a knob 161a. The knob 161a is rotatably connected to the first subunit 160a via multiple external threads. Therefore, the first subunit 160a is provided with a hole 161b having multiple internal threads for at least partially accommodating the knob 161a.

[0108] In one exemplary embodiment, a knob 161a is secured in a hole 161b of a first subunit 160a to mate the first subunit 160a on an elongated member 140. When secured in the hole 161b, the knob 161a engages at least partially with a groove (not shown) on the elongated member 140, thereby preventing the first subunit 160a from sliding on the elongated member 140. Conversely, the knob 161a disengages from the hole 161b to disengage the first subunit 160a from the mating.

[0109] like Figure 7 and Figure 7a This is another exemplary embodiment of the first subunit 160a of the docking impactor 160. (See also...) Figure 7 As shown, in an exemplary embodiment, the docking device 161 includes a joint 161c located at the distal end of the second stop 150b on the elongated member 140. The first subunit 160a can be detachably connected to the joint 161c.

[0110] In one exemplary embodiment, the first subunit 160a and the joint 161c are provided with a plurality of complementary threads to enable the first subunit 160a to mate with the elongated member 140. Therefore, as Figure 7a As shown, the first subunit 160a is fixed to the joint 161c to prevent the first subunit 160a from sliding on the elongated member 140.

[0111] Other functionally equivalent methods of docking the first subunit 160a to the elongated member 140 are all within the scope of the teachings of this invention.

[0112] Although the impactor 160 of the present invention is described by way of example with two sub-units, impactors 160 having more than two sub-units are also within the scope of the teachings of the present invention.

[0113] like Figure 8 The illustration shows an exemplary embodiment of a method 300 for assembling device 100 before starting the implantation procedure.

[0114] The method begins in step 301, oriented the neck 201 of the implant 200 toward the inside of the adapter 110. The surgeon ensures the orientation of the neck 201 of the implant 200 based on at least one of a first indicator 111c2 (and / or a second indicator) provided on the third portion 111c of the tubular portion 111 and a third indicator 113b (and / or a fourth indicator 113c) provided on the flange portion 113.

[0115] In step 303, adapter 110 is connected to implant 200. For example... Figure 2b As shown, in an exemplary embodiment, the stem 203 of the implant 200 is detachably connected to the adapter 110. The protrusion 111c1 of the adapter 110 engages with the stem 203, thereby restricting the rotation of the implant 200 relative to the adapter 110, and thus maintaining the preset orientation of the implant 200 during implantation.

[0116] In step 305, connector 120 is connected to implant 200. In an exemplary embodiment (not shown), the distal end 120b of connector 120 and the shank 203 of implant 200 are each provided with corresponding threads, such that the distal end 120b of connector 120 can be fastened into implant 200. In other words, the surgeon screws the distal end 120b of connector 120 into the shank 203 of implant 200, thereby connecting connector 120 and implant 200.

[0117] In step 307, the impactor 160 is slidably connected (or mounted) to the elongated member 140. In an exemplary embodiment, the impactor 160 slides through the distal end 140b of the elongated member 140.

[0118] In addition, the appropriate weight of the impactor 160 can be selected based on the bone density / mass at the implantation site (e.g., Figure 1 (As shown).

[0119] Optionally, the impactor 160 may be selected to have two or more sub-units (e.g., including a first sub-unit 160a and a second sub-unit 160b, such as...). Figure 6 and Figure 7 (as shown), so that it slides on the slender member 140.

[0120] In step 309, the elongated member 140 is connected to the connector 120. In an exemplary embodiment, the elongated member 140 is connected to the head 123 of the connector 120 by screwing the distal end 140b of the elongated member 140 into the cavity 123a of the connector 120.

[0121] like Figure 9 The illustration shows an exemplary embodiment of an implantation procedure 400, in which the device 100 inserts an implant 200 into an implantation site. For the implantation procedure 400, the preparation of the device 100 involves connecting the implant 200 to the device 100, as described above (e.g.) Figure 8 (As shown).

[0122] The implantation procedure 400 begins at step 401, in which the implant 200 is inserted into the bone cavity at the implantation site. In an exemplary embodiment, the implant 200 is inserted by pushing the device 100 and / or the implant 200 into the bone cavity until resistance is felt when pushing the implant 200.

[0123] In step 403, the guide 130 is connected to the adapter 110. In an exemplary embodiment, an axial protrusion 131 of the guide 130 is detachably connected to a cavity 113a of the adapter 110. The connection between the axial protrusion 131 of the guide 130 and the cavity 113a of the adapter 110 allows the surgeon to set a preset tilt angle of the implant 200 for each patient as needed (described in the next step).

[0124] In step 405, the surgeon rotates the device 100 so that the guide 130 of the device 100 is perpendicular to the imaginary axis "xx". Due to the protrusion 111c1 of the adapter 110, the implant 200 rotates with the device 100. In an exemplary embodiment, with the tibia bent and held perpendicular to the femur, the surgeon aligns the guide 130 parallel to the long axis of the tibia. This alignment of the guide 130 sets the anteversion angle of the implant 200 relative to the implantation site.

[0125] In step 407, the impactor 160 of device 100 is used to push the implant 200 into the bone cavity of the implantation site. In an exemplary embodiment, the surgeon slides the impactor 160 to impact the head 123 of connector 120, thereby transmitting a predetermined force from the impactor 160 to connector 120. Connector 120 transmits the predetermined force to implant 200, thereby enabling the implant 200 to be pushed into the bone cavity of the implantation site. The predetermined force is at least proportional to the weight of impactor 160 and / or the distance between stopper 150 and connector 120.

[0126] Additionally or optionally, if an impactor 160 having two or more subunits (e.g., including a first subunit 160a and a second subunit 160b) is used, the impactor 160 can be switched between a first configuration and a second configuration as needed by the surgeon. In the first configuration of the impactor 160, the first subunit 160a and the second subunit 160b are interconnected and configured to slide on an elongated member 140. In the first configuration of the impactor 160, the impactor 160 is used for sclerotic bone.

[0127] In the second configuration of the impactor 160, the second subunit 160b is separated from the first subunit 160a. Furthermore, the first subunit 160a is reversibly abutted next to the second stop 150b. Therefore, only the second subunit 160b can slide past the elongated member 140. In this second configuration, the impactor 160 is used for osteoporotic bone.

[0128] In step 409, connector 120 is separated from implant 200. In an exemplary embodiment, the surgeon unscrews the distal end 120b of connector 120 from the stem 203 of implant 200, thereby separating connector 120 from implant 200.

[0129] In step 411, the device 100 is removed from the implantation site, thereby leaving the implant 200 in the bone cavity of the implantation site.

[0130] Although the implantation procedure 400 is described as impacting the implant 200 with the aid of an impactor 160, the implant 200 can also be impacted by striking the stop 150 or the head 123 of the connector 120 with a hammer. If the implant 200 is impacted by striking the connector 120, the device 100 can be assembled, for example, without the elongated member 140, the stop 150, and / or the impactor 160, which is within the scope of the teachings of this invention.

[0131] Although the implantation procedure 400 is described as being performed by a surgeon, the implantation procedure 400 may also be performed by an automated entity, such as a robotic arm (not shown), and this is within the scope of the present invention.

[0132] The present invention will now be explained through the following examples.

[0133] Example 1 (Prior Art): A stem prosthesis is implanted into the diseased femur to strengthen the affected bone. The surgeon uses a hammer to tap the stem prosthesis into the femoral cavity. The prosthesis alignment (i.e., anteversion angle) is roughly estimated visually at the implantation site. During the tapping process, the prosthesis alignment is deformed. The prosthesis slips and rotates during the tapping process. Furthermore, due to the use of a hammer, the tapping force used to tap the prosthesis into the cavity is uneven (and varies from surgeon to surgeon), resulting in fractures of the underlying bone.

[0134] Example 2 (Invention): After assembly, the device 100 of the present invention is used to insert the implant 200 into the femoral cavity. Based on a first indicator 111c2 (and a second indicator) provided on the third portion 111c of the tubular portion 111 and a third indicator 113b (and a fourth indicator 113c) provided on the flange portion 113, the neck 201 of the implant 200 faces inward toward the adapter 110. The stem 203 of the implant 200 is detachably connected to the adapter 110 by engaging a protrusion 111c1 of the adapter 110 with a corresponding first recess 203a on the stem 203. The connection between the adapter 110 and the implant 200 restricts the rotation of the implant 200 relative to the adapter 110 (during the implantation process). The distal end 120b of the connector 120 is secured to a second recess 203b of the implant 200 to connect the connector 120 and the implant 200. Impactor 160 is slidably loaded onto elongated member 140. The distal end 140b of elongated member 140 is secured to cavity 123a of connector 120 to connect elongated member 140 to connector 120.

[0135] The pusher 100 and implant 200 are inserted into the bone cavity until resistance is encountered when pushing the implant 200. The axial projection 131 of the guide 130 is detachably connected to a cavity 113a of the adapter 110. The surgeon aligns the guide 130 parallel to the long axis of the tibia while flexing the tibia perpendicular to the femur, thereby setting a preset anteversion angle for the implant 200 (which is maintained throughout the implantation process). The impactor 160 is slidably used to impact the head 123 of the connector 120, thereby pushing the implant 200 into the bone cavity at the implantation site with a uniform force (the impact force remains constant even when impacted by different surgeons). After the implant 200 is fully inserted into the femoral bone cavity, the surgeon separates the distal end 120b of the connector 120 from the stem 203 of the implant 200, thus separating the connector 120 and the implant 200. Subsequently, the device 100 is removed from the implantation site, while the implant 200 remains in the femoral cavity.

[0136] The scope of this invention is limited only by the appended claims. More generally, those skilled in the art will understand that all parameters, dimensions, materials, and structures described herein are illustrative and the actual parameters, dimensions, materials, and / or structures will depend on the specific application to which this invention is applied.

Claims

1. An apparatus (100), characterized in that, include: a. An adapter (110), the adapter (110) including a proximal end (110a), a distal end (110b), and a lumen (114) extending between the proximal end (110a) and the distal end (110b), the lumen (114) including: A tubular portion (111) includes one or more protrusions (111c1) disposed toward the distal end (110b) of the adapter (110), the protrusions (111c1) enabling the tubular portion (111) to be detachably connected to the implant (200), and at least a portion of the tubular portion (111) defines the lumen (114) of the adapter (110). A flange (113) is coaxially disposed with the tubular portion (111) at the proximal end (110a) of the adapter (110), and at least a portion of the flange (113) defines the lumen (114) of the adapter (110); and At least one set of cavities (113a) are arranged circumferentially along the flange (113), each cavity (113a) is offset from the other cavities (113a), each cavity (113a) in the cavity (113a) corresponds to a forward tilt angle, the forward tilt angle is formed by the implant (200) connected to the tubular part (111) of the adapter (110) relative to the implantation site; b. A guide (130) detachably connected to at least one cavity (113a) on the flange (113) of the adapter (110) to set the forward tilt angle; and c. A connector (120), the connector (120) including a proximal end (120a) and a distal end (120b), the connector (120) comprising: Head (123), said head (123) being disposed at the proximal end (120a) of said connector (120); and A rod (121), at least a portion of which is disposed within the lumen (114) of the adapter (110) via the flange (113), the distal end (120b) of which is operatively connected to the implant (200) for insertion into a bone cavity.

2. The apparatus (100) according to claim 1, characterized in that, The device (100) includes: a. An elongated member (140) including a proximal end (140a) and a distal end (140b), the distal end (140b) of the elongated member (140) being connected to the head (123) of the connector (120); b. One or more stops (150) connected to the proximal end (140a) of the elongated member (140); and c. At least one impactor (160) slidably disposed about the elongated member (140).

3. The apparatus (100) according to claim 1, characterized in that, The tubular portion (111) and the flange portion (113) of the adapter (110) can be detachably connected or form an integral structure.

4. The apparatus (100) according to claim 1, characterized in that, The rod (121) and head (123) of the connector (120) can be detachably connected or formed as an integral structure.

5. The apparatus (100) according to claim 1, characterized in that, The second joint (121a) of the rod (121) is used to temporarily engage with the first joint (111a1) of the adapter (110).

6. The apparatus (100) according to claim 1, characterized in that, The tubular portion (111) includes a second portion (111b) which has one or more cuts (111b1) having a preset shape and angle orientation to allow the connector (120) to rotate freely within the cavity (114) of the adapter (110) without the connector (120) sliding out of the cavity (114) of the adapter (110).

7. The apparatus (100) according to claim 1, characterized in that, The tubular portion (111) is provided with at least one first indicator (111c2) to ensure that the inside of the implant (220) is correctly oriented toward the inside of the adapter (110).

8. The apparatus (100) according to claim 1, characterized in that, The flange (113) is provided with at least one third indicator (113b) and one fourth indicator (113c), the third indicator (113b) indicating the inner side of the adapter (110) and the fourth indicator (113c) indicating the outer side of the adapter (110).

9. The apparatus (100) according to claim 1, characterized in that, The forward tilt angle of each cavity (113a) increases or decreases from the inside to the outside of the adapter (110).

10. The apparatus (100) according to claim 1, characterized in that, The at least one set of cavities (113a) includes a first set of cavities (113a) and a second set of cavities (113a), which are arranged opposite to each other.

11. The apparatus (100) according to claim 1, characterized in that, The second engagement portion (121a) of the rod portion (121) is configured to be close to or away from the first engagement portion (111a1) of the adapter (110).

12. The apparatus (100) according to claim 1, characterized in that, The distal end (140b) of the elongated member (140) is connected to the cavity (123a) of the head (123) of the connector (120).

13. The apparatus (100) according to claim 2, characterized in that, The stop (150) includes a first stop (150a) positioned close to the second stop (150b).

14. The apparatus (100) according to claim 2, characterized in that, The impactor (160) includes: a. First subunit (160a); b. A second subunit (160b), which is detachably connected to the first subunit (160a); and c. A docking device (161) for reversibly docking the first subunit (160a) to the position of the elongated member (140) near the stop (150).

15. A component, characterized in that, include: a. The apparatus (100) as described in any of the preceding claims; as well as b. An implant (200) comprising a neck (201) and a stem (203), the stem (203) comprising one or more first recesses (203a) and a second recess (203b), the first recesses (203a) of the stem (203) being detachably connected to a corresponding protrusion (111c1) of the adapter (110), and the second recesses (203b) of the stem (203) being operatively connected to the distal end (120b) of the connector (120).

Images