CN216628828U

CN216628828U - Acetabular cup positioning assembly and acetabular cup installer

Info

Publication number: CN216628828U
Application number: CN202123072822.5U
Authority: CN
Inventors: 伍能; 石杜芳; 曾超; 申桐桐; 刘梦星
Original assignee: Wuhan Mindray Technology Co Ltd
Current assignee: Wuhan Mindray Technology Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-31
Anticipated expiration: 2031-12-08

Abstract

The application discloses an acetabular cup positioning component and an acetabular cup installer, wherein the acetabular cup positioning component comprises an angle positioning structure and a clamping structure, and the angle positioning structure is used for positioning the installation angle of an acetabular cup; the clamping structure comprises a first clamping piece and a second clamping piece which are connected with each other, the first clamping piece or the second clamping piece is connected with the angle positioning structure, the first clamping piece comprises a first clamping portion, the second clamping piece comprises a second clamping portion, the first clamping portion and the second clamping portion are arranged at intervals, and the first clamping piece and the second clamping piece are movably connected to adjust the distance between the first clamping portion and the second clamping portion. This application embodiment can rotate clamping structure to arbitrary angle around the installation pole through making the distance between clamping structure's the first clamping part and the second clamping part adjustable, then makes clamping structure's first clamping part and second clamping part centre gripping in the both sides of installation pole again, makes acetabular cup locating component realize arbitrary angle modulation in the circumference of installation pole.

Description

Acetabular cup positioning assembly and acetabular cup installer

Technical Field

The application relates to the technical field of medical equipment, in particular to an acetabular cup positioning component and an acetabular cup installer.

Background

Currently, an acetabular cup installer is commonly used in hip replacement surgery, and comprises an installation rod and an acetabular cup positioning component connected with the installation rod, when the hip replacement surgery is performed, the installation rod of the acetabular cup installer is connected with an acetabular cup, then the acetabular cup is fixed in an acetabular socket which is polished in advance through the installation rod, and an abduction angle and an anteversion angle for installing the acetabular cup are determined through the acetabular cup positioning component.

The acetabular cup positioning assembly comprises an acetabular cup positioning component, a pair of toothed plates, a plurality of teeth and a positioning rod, wherein the acetabular cup positioning component is required to rotate around the mounting rod so as to adjust the position of the acetabular cup positioning component.

However, the acetabular cup positioning component of the conventional acetabular cup installer can only rotate relative to the installation rod to a position where the two fluted discs are meshed, and cannot adjust any angle in the circumferential direction of the installation rod.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an acetabular cup positioning component and an acetabular cup installer, and aims to solve the problem that the conventional acetabular cup positioning component cannot adjust any angle in the circumferential direction of an installation rod.

The embodiment of this application provides an acetabular cup locating component, includes:

the angle positioning structure is used for positioning the installation angle of the acetabular cup;

clamping structure, clamping structure includes interconnect's first holder and second holder, first holder or the second holder with angle location structure connects, first holder includes first clamping part, the second holder includes the second clamping part, first clamping part with the relative interval setting of second clamping part, first holder with second holder swing joint is in order to adjust first clamping part with distance between the second clamping part.

Optionally, the clamping structure further includes an elastic member, one end of the elastic member is connected to the first clamping member, and the other end of the elastic member is connected to the second clamping member to apply an elastic force to the second clamping member, so that the second clamping portion moves toward the first clamping portion.

Optionally, the first clamping piece comprises a first hinge part connected with the first clamping part, and a first pressing part connected with the first hinge part; the second clamping piece comprises a second hinge part connected with the second clamping part and a second pressing part connected with the second hinge part; the first hinge part and the second hinge part are hinged with each other so as to enable the first clamping piece and the second clamping piece to be movably connected;

one end of the elastic piece is connected with the first pressing portion, and the other end of the elastic piece is connected with the second pressing portion to apply elastic force to the second pressing portion, so that the second clamping portion rotates towards the first clamping portion.

Optionally, the first clamping member comprises a first flexible layer disposed on the first clamping portion and facing the second clamping portion; the second clamping piece further comprises a second flexible layer arranged on the second clamping portion and facing the first clamping portion.

Optionally, the first clamping member includes a first connecting portion connected to the first clamping portion, the second clamping member includes a second connecting portion connected to the second clamping portion, the second connecting portion is in threaded connection with the first connecting portion, and the second connecting portion rotates relative to the first connecting portion to adjust a distance between the first clamping portion and the second clamping portion.

Optionally, the first connecting portion includes a fixing portion and an adjusting portion, which are connected to each other, the fixing portion is connected to the first clamping portion, the adjusting portion is disposed at an interval opposite to the first clamping portion, and a threaded hole penetrating through the adjusting portion is formed in a surface of the adjusting portion opposite to the first clamping portion;

the second connecting portion is rod-shaped and is inserted into the threaded hole and is in threaded connection with the threaded hole, and the second clamping portion is located at one end, close to the second clamping portion, of the second connecting portion.

Optionally, the angle positioning structure includes a base connected to the first clamping member or the second clamping member, and an abduction angle adjustment rod rotatably connected to the base;

the abduction angle adjusting rod is in damping connection with the base;

or, still be connected with first retaining member on the abduction angle adjusting rod, first retaining member with the base is connected in order to lock the abduction angle adjusting rod.

Optionally, the angle positioning structure comprises a forward-rake adjusting rod rotatably connected with the abduction angle adjusting rod;

the forward-rake adjusting rod is in damping connection with the abduction angle adjusting rod;

or the front-angle adjusting rod is further connected with a second locking piece, and the second locking piece is connected with the abduction angle adjusting rod to lock the front-angle adjusting rod.

Optionally, the base is detachably connected to the first clamping member or the second clamping member.

Optionally, the base comprises a plug part;

the first clamping piece is provided with a first jack, and the insertion part is inserted into the first jack so as to enable the angle positioning structure to be detachably connected with the first clamping piece; or,

and a second jack is formed in the second clamping piece, and the insertion part is inserted into the second jack so that the angle positioning structure is detachably connected with the second clamping piece.

The embodiment of the present application further provides an acetabular cup installer, which includes:

one end of the mounting rod is provided with a connecting part which is detachably connected with the acetabular cup;

and an acetabular cup positioning assembly as described above, the acetabular cup positioning assembly comprising:

clamping structure, clamping structure includes interconnect's first holder and second holder, first holder or the second holder with angular positioning structure connects, first holder includes first clamping part, the second holder includes the second clamping part, first clamping part with the relative interval setting of second clamping part, first holder with second holder swing joint is in order to adjust first clamping part with distance between the second clamping part, first clamping part with the centre gripping of second clamping part is in the both sides of installation pole.

The acetabular cup positioning component provided by the embodiment of the application can adjust the distance between the first clamping part and the second clamping part of the clamping structure, and the first clamping part and the second clamping part of the clamping structure are clamped on two sides of the installation rod, so that the acetabular cup positioning component can be conveniently connected with the installation rod. Meanwhile, the mounting rod can be loosened by the first clamping part and the second clamping part of the clamping structure, the clamping structure can rotate to any angle around the mounting rod, and then the first clamping part and the second clamping part of the clamping structure are clamped on two sides of the mounting rod, so that the acetabular cup positioning component can be adjusted at any angle in the circumferential direction of the mounting rod.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of an embodiment of an acetabular cup installer provided by embodiments of the present application;

FIG. 2 is a schematic structural diagram of an embodiment of a clamping structure provided in an embodiment of the present application;

FIG. 3 is another angular view of the clamping structure of FIG. 2;

FIG. 4 is a schematic structural diagram of another embodiment of a clamping structure provided in the embodiments of the present application;

FIG. 5 is a schematic structural diagram of an embodiment of an angular positioning structure provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of another embodiment of an angular positioning structure provided in the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides an acetabular cup positioning component and an acetabular cup installer. The following are detailed below.

First, an acetabular cup positioning assembly is provided in an embodiment of the present application.

Fig. 1 is a schematic structural diagram of an embodiment of an acetabular cup installer provided by an embodiment of the present application. As shown in fig. 1, acetabular cup installer 100 includes a mounting rod 200 and an acetabular cup positioning assembly 300, wherein one end of mounting rod 200 is adapted to be coupled to an acetabular cup (not shown) and acetabular cup positioning assembly 300 is mounted to mounting rod 200 for positioning the installation angle of the acetabular cup. Wherein, the installation angle of the acetabular cup comprises an anteversion angle, an abduction angle and the like of the acetabular cup.

In hip replacement surgery, the humeral head is cut off, then the acetabular socket is ground and the medullary cavity is enlarged, then one end of the mounting rod 200 is detachably connected with the acetabular cup, then the acetabular cup is mounted in the acetabular socket through the mounting rod 200, and the anteversion angle and the abduction angle of the acetabular cup are positioned through the acetabular cup positioning component 300; then, the mounting rod 200 of the acetabular cup mounter 100 is separated from the acetabular cup, and hip joint prostheses such as an acetabular liner, a ball, and a femoral stem are sequentially mounted in the acetabular cup.

Wherein, one end of the installation rod 200 can be connected with the acetabulum cup through screw threads, so that one end of the installation rod 200 is detachably connected with the acetabulum cup. Alternatively, a connecting hole may be formed in the acetabular cup, and one end of the mounting rod 200 may be inserted into the connecting hole, and one end of the mounting rod 200 may be in interference fit with the connecting hole, so that one end of the mounting rod 200 may be detachably connected to the acetabular cup. In addition, one end of the mounting rod 200 can be detachably connected with the acetabular cup through a connecting piece such as a screw and a pin.

As shown in fig. 1, the acetabular cup positioning assembly 300 includes an angular positioning feature 310 and a clamping feature 320, the angular positioning feature 310 being used to position the angle of the acetabular cup. The clamping structure 320 is coupled to the angular positioning structure 310 such that the acetabular cup positioning assembly 300 may be coupled to the mounting rod 200 by clamping the clamping structure 320 to the mounting rod 200.

As shown in fig. 2 and 3, the clamping structure 320 includes a first clamping member 321 and a second clamping member 322 connected to each other, and the first clamping member 321 or the second clamping member 322 is connected to the angle positioning structure 310, so that the clamping structure 320 and the angle positioning structure 310 are connected together. The first clamping member 321 of the clamping structure 320 includes a first clamping portion 3211, the second clamping member 322 includes a second clamping portion 3221, the first clamping portion 3211 and the second clamping portion 3221 are oppositely disposed at intervals, and the first clamping member 321 and the second clamping member 322 are movably connected to adjust a distance between the first clamping portion 3211 and the second clamping portion 3221.

Thus, when the clamping structure 320 is connected to the installation rod 200, the first clamping portion 3211 of the first clamping member 321 and the second clamping portion 3221 of the second clamping member 322 may be placed on both sides of the installation rod 200, and then the second clamping member 322 may be moved toward the first clamping member 321 to shorten the distance between the first clamping portion 3211 and the second clamping portion 3221 until the first clamping portion 3211 and the second clamping portion 3221 are clamped on both sides of the installation rod 200, so that the clamping structure 320 is clamped on the installation rod 200, thereby enabling the angle positioning structure 310 connected to the clamping structure 320 to position the installation angle of the acetabular cup.

When it is desired to rotate the acetabular cup positioning assembly 300 about the mounting rod 200 to adjust the position of the acetabular cup positioning assembly 300, the second clamping member 322 may be moved away from the first clamping member 321 to increase the distance between the first clamping portion 3211 and the second clamping portion 3221, so that the first clamping portion 3211 and the second clamping portion 3221 may release the mounting rod 200, and after the control clamping structure 320 is rotated to any angle about the mounting rod 200, the first clamping portion 3211 and the second clamping portion 3221 may be clamped on both sides of the mounting rod 200, so as to complete the adjustment of the position of the acetabular cup positioning assembly 300 in the circumferential direction of the mounting rod 200.

It can be appreciated that the acetabular cup positioning assembly 300 can be conveniently connected with the mounting rod 200 by adjusting the distance between the first clamping portion 3211 and the second clamping portion 3221 of the clamping structure 320 to clamp the first clamping portion 3211 and the second clamping portion 3221 of the clamping structure 320 on both sides of the mounting rod 200. Meanwhile, the first clamping portion 3211 and the second clamping portion 3221 can be loosened from the mounting rod 200 by the clamping structure 320, the clamping structure 320 can be rotated to any angle around the mounting rod 200, and then the first clamping portion 3211 and the second clamping portion 3221 of the clamping structure 320 are clamped at two sides of the mounting rod 200, so that the acetabular cup positioning component 300 can be adjusted to any angle in the circumferential direction of the mounting rod 200.

It should be noted that the first clamping member 321 and the second clamping member 322 may be connected in a rotating manner or in a sliding manner, and only the distance between the first clamping portion 3211 and the second clamping portion 3221 needs to be adjustable when the second clamping member 322 moves relative to the first clamping member 321.

In some embodiments, first clamp 321 and second clamp 322 are rotationally coupled. Specifically, as shown in fig. 2 and 3, the first clip includes a first hinge portion 3213 connected with the first clip portion 3211; the second clamping member 322 includes a second hinge portion 3223 connected to the second clamping portion 3221, and the first hinge portion 3213 and the second hinge portion 3223 are hinged to each other to movably connect the first clamping member 321 and the second clamping member 322. At this time, the movable connection between the first clamping member 321 and the second clamping member 322 is a rotary connection, and the distance between the first clamping portion 3211 and the second clamping portion 3221 can be adjusted by controlling the second clamping member 322 to rotate relative to the first clamping member 321.

In other embodiments, first clamp 321 and second clamp 322 are slidably connected. Specifically, a sliding rail is disposed on the first clamping member 321, the sliding rail extends along the distribution direction of the first clamping portion 3211 and the second clamping portion 3221, and the second clamping member 322 is slidably connected to the sliding rail, so that the first clamping member 321 is movably connected to the second clamping member 322. At this time, the movable connection of the first clamping member 321 and the second clamping member 322 is a sliding connection. By controlling the second clamping member 322 to slide along the sliding rail, the distance between the first clamping portion 3211 and the second clamping portion 3221 can be adjusted.

As shown in fig. 2, the clamping structure 320 further includes an elastic member 323, one end of the elastic member 323 is connected to the first clamping member 321, and the other end of the elastic member 323 is connected to the second clamping member 322 to apply an elastic force to the second clamping member 322 to move the second clamping portion 3221 toward the first clamping portion 3211. The elastic force applied to the second clamping member 322 by the elastic member 323 can make the first clamping portion 3211 and the second clamping portion 3221 clamped on both sides of the mounting rod 200 more stably.

The elastic force applied by the elastic element 323 to the second clamping element 322 may be a pushing force or a pulling force, and it is only necessary that the elastic force applied by the elastic element 323 to the second clamping element 322 can move the second clamping portion 3221 toward the first clamping portion 3211. In addition, the elastic member 323 includes any elastic structure capable of applying an elastic force to the second clamping member 322, such as a spring, a torsion spring, a tension spring, and rubber, and is not limited herein.

Specifically, the first clamping member 321 includes a first pressing portion 3214 connected to the first hinge portion 3213, and the second clamping member 322 includes a second pressing portion 3224 connected to the second hinge portion 3223. One end of the elastic member 323 is connected to the first pressing portion 3214, and the other end of the elastic member 323 is connected to the second pressing portion 3224 to apply an elastic force to the second pressing portion 3224 to rotate the second clamping portion 3221 toward the first clamping portion 3211. The operator presses the first pressing portion 3214 and the second pressing portion 3224 with one hand, so as to apply an acting force to the second pressing portion 3224, so that the second pressing portion 3224 overcomes the elastic force of the elastic member 323 and drives the second clamping portion 3221 to rotate toward the direction away from the first clamping portion 3211.

The first pressing portion 3214 and the first clamping portion 3211 of the first clamping member 321 are disposed on opposite sides of the first hinge portion 3213. The second pressing portion 3224 and the second clamping portion 3221 of the second clamping member 322 are distributed on opposite sides of the second hinge portion 3223. A hinge shaft passes through the first and

second hinge portions

3213 and 3223 to hinge the first and

second hinge portions

3213 and 3223. The elastic member 323 is a torsion spring sleeved on the hinge shaft, one end of the torsion spring abuts against one side of the first pressing portion 3214 facing the second pressing portion 3224, and the other end of the torsion spring abuts against one side of the second pressing portion 3224 facing the first pressing portion 3214, so as to apply an elastic force to the second pressing portion 3224, so that the second pressing portion 3224 drives the second clamping portion 3221 to move toward the first clamping portion 3211. Here, the elastic force of the torsion spring applied to the second pressing portion 3224 is a pushing force.

In other embodiments, the first clamping member 321 does not include the first pressing portion 3214, the second clamping member 322 does not include the second pressing portion 3224, one end of the elastic member 323 is connected to one end of the first clamping portion 3211 away from the first hinge portion 3213, and the other end of the elastic member 323 is connected to one end of the second clamping portion 3221 away from the second hinge portion 3223, so as to apply an elastic force to the second clamping portion 3221, so that the second clamping portion 3221 rotates toward the first clamping portion 3211. The elastic force applied by the elastic element 323 to the second clamping portion 3221 is a pulling force.

It should be noted that, the elastic force which the elastic member 323 applies to the second clamping member 322 to rotate the second clamping portion 3221 toward the first clamping portion 3211 is only a part of the embodiments, and when the first clamping member 321 and the second clamping member 322 are slidably connected, one end of the elastic member 323 can be connected to the first clamping member 321, and the other end of the elastic member 323 can be connected to the second clamping member 322 to apply to the second clamping member 322 an elastic force which causes the second clamping portion 3221 to slide toward the first clamping portion 3211, and the elastic force may be a pushing force or a pulling force.

In other embodiments, the clamping structure 320 may not include the elastic member 323. Specific examples thereof include: the clamping structure 320 further includes a locking member, and after the first clamping portion 3211 and the second hijacking portion of the clamping structure 320 are clamped at two sides of the mounting rod 200, the first clamping portion 321 and the second clamping portion 322 can be connected through the locking member to lock the first clamping portion 321 and the second clamping portion 322, so that the first clamping portion 3211 and the second clamping portion 3221 are more firmly clamped at two sides of the mounting rod 200. Wherein the locking elements comprise screws, bolts, pins, etc.

Or, a first magnetic attraction element may be further disposed on the first clamping element 321, a second magnetic attraction element may be disposed on the second clamping element 322, and the first magnetic attraction element and the second magnetic attraction element attract each other, so that after the first clamping portion 3211 and the second hijacking portion of the clamping structure 320 are clamped on two sides of the mounting rod 200, the first clamping portion 3211 and the second clamping portion 3221 are more firmly clamped on two sides of the mounting rod 200 through the mutual attraction between the first magnetic attraction element and the second magnetic attraction element.

In other embodiments, as shown in fig. 4, the first clamping member 321a of the clamping structure 320a includes a first connecting portion 3215 connected to the first clamping portion 3211a, the second clamping member 322a includes a second connecting portion 3225 connected to a second clamping portion (not shown), the second connecting portion 3225 is threadedly connected to the first connecting portion 3215, and the second connecting portion 3225 rotates relative to the first connecting portion 3215 to adjust the distance between the first clamping portion 3211a and the second clamping portion. It can be understood that, since the second connecting portion 3225 is threadedly connected to the first connecting portion 3215, when the second connecting portion 3225 is controlled to rotate relative to the first connecting portion 3215, the second connecting portion 3225 will also move relative to the first connecting portion 3215, so as to adjust the distance between the first clamping portion 3211a and the second clamping portion.

The first connecting portion 3215 includes a fixing portion 3216 and an adjusting portion 3217, the fixing portion 3216 is connected to the first clamping portion 3211a, the adjusting portion 3217 is spaced from the first clamping portion 3211a, and a threaded hole 3218 penetrating through the adjusting portion 3217 is formed in a surface of the adjusting portion 3217 opposite to the first clamping portion 3211 a. The second connecting portion 3225 is disposed in a rod shape, the second connecting portion 3225 is inserted into the threaded hole 3218 and is threadedly connected with the threaded hole 3218, and the second clamping portion is located at an end of the second connecting portion 3225 close to the second clamping portion. When the second connecting portion 3225 is rotated, the second clamping portion can be quickly moved closer to the first clamping portion 3211a or away from the first clamping portion 3211 a. An adjusting knob 3226 is further disposed at an end of the second connecting portion 3225 away from the second clamping portion. The second connecting portion 3225 can be controlled to rotate more easily by adjusting the knob 3226.

As shown in fig. 4, the first connecting portion 3215 further includes a supporting portion 3219, the supporting portion 3219 is located on a side of the adjusting portion 3217 away from the first clamping portion 3211a, the supporting portion 3219 and the adjusting portion 3217 are arranged at an interval, and the supporting portion 3219 is connected to the adjusting portion 3217 through a connecting structure 3227. A support hole (not shown) is formed at a position of the support portion 3219 corresponding to the threaded hole 3218, and the second connecting portion 3225 passes through the support hole, extends out of a side of the support portion 3219 away from the adjusting portion 3217, and is connected with the adjusting knob 3226. Thus, when the second connecting portion 3225 is screwed out of the threaded hole 3218 in a direction away from the first clamping portion 3211a, the supporting portion 3219 can support the second connecting portion 3225 through the supporting hole, and the second connecting portion 3225 is prevented from falling off.

Specifically, the first clamping portion 3211a of the first clamping piece 321a is plate-shaped. The adjustment portion 3217 is provided in a plate shape, and the adjustment portion 3217 is provided to face the first sandwiching portion 3211a at an interval. The adjusting portion 3217 is formed in a plate shape, and opposite sides of the adjusting portion 3217 are connected to the first clamping portion 3211a and the adjusting portion 3217, respectively. The support portion 3219 is provided in a plate shape, and the support portion 3219 is provided opposite to the adjustment portion 3217 at an interval. The connecting structure 3227 is disposed in a plate shape, and two opposite sides of the connecting structure 3227 are connected to the supporting portion 3219 and the adjusting portion 3217, respectively. The first clamping portion 3211a of the first clamping piece 321a and the first connecting portion 3215 are integrally formed.

As shown in fig. 2 and 3, the first clamping member 321 includes a first flexible layer 324 disposed on the first clamping portion 3211 and facing the second clamping portion 3221. When the first clamping portion 3211 and the second clamping portion 3221 are clamped at two sides of the mounting rod 200, the first clamping portion 3211 passes through the abutment between the first flexible layer 324 and the mounting rod 200, so as to increase the friction force between the first clamping portion 3211 and the mounting rod 200, and the clamping structure 320 is clamped on the mounting rod 200 more stably.

The first flexible layer 324 is made of a flexible material. The first flexible layer 324 may be made of a polymer material, which may include one or more of polyamide, polyethylene, polyvinyl chloride, polypropylene, silicone, rubber, and the like.

As shown in fig. 2 and 3, the second clamping member 322 includes a second flexible layer 325 disposed on the second clamping portion 3221 and facing the first clamping portion 3211. When the first and

second clamping portions

3211 and 3221 are clamped on both sides of the mounting rod 200, the second clamping portion 3221 passes through the abutment between the second flexible layer 325 and the mounting rod 200 to increase the friction force between the second clamping portion 3221 and the mounting rod 200, so that the clamping structure 320 is clamped on the mounting rod 200 more stably.

The second flexible layer 325 is made of a flexible material. The second flexible layer 325 may be made of a polymer material, which may include one or more of polyamide, polyethylene, polyvinyl chloride, polypropylene, and silicone.

It should be noted that the first flexible layer 324 may be provided on the first clamping portion 3211 and the second flexible layer 325 may be provided on the second clamping portion 3221, or only the first flexible layer 324 may be provided on the first clamping portion 3211 or only the second flexible layer 325 may be provided on the second clamping portion 3221, but of course, the former may further firmly clamp the clamping structure 320 to the mounting rod 200.

Specifically, as shown in fig. 2 and 3, the first clamping portion 3211 and the second clamping portion 3221 are respectively arc-shaped plate-shaped structures. The concave surface of the first clamping portion 3211 is opposite to the concave surface of the second clamping portion 3221. The first flexible layer 324 is disposed on a concave surface of the first clip portion 3211. The second flexible layer 325 is disposed on the concave surface of the second grip portion 3221. A limiting notch 3212 is formed in an edge of one side of the first clamping portion 3211, which is far away from the first hinge portion 3213, a limiting protrusion 3222 is disposed at one end of the second clamping portion 3221, which is far away from the second hinge portion 3223, and when the first clamping portion 3211 and the second clamping portion 3221 are clamped at two sides of the mounting rod 200, the limiting protrusion 3222 is inserted into the limiting notch 3212 to limit relative movement of the first clamping portion 3211 and the second clamping portion 3221 in the length direction of the mounting rod 200, thereby improving structural stability of the clamping structure 320.

In the embodiment of the present application, the clamping structure 320 can also be used in other medical devices. Specific examples thereof include: if the light intensity in the operative field is not enough during the operation, the angle positioning structure 310 on the holding structure 320 can be replaced by an external power lamp.

As shown in fig. 1 and 5, the angle positioning structure 310 includes a base 311 connected to the first clamp 321, and a abduction angle adjustment lever 312 rotatably connected to the base 311, and the degree of abduction angle of the abduction angle adjustment lever 312 can be adjusted by rotating the abduction angle adjustment lever 312 with respect to the base 311.

Optionally, the base 311 is detachably connected to the first clamp 321. Thus, the angular positioning structure 310 can be removed from the clamp structure 320 when the angular positioning structure 310 is not needed.

Specifically, the base 311 includes a socket 3111. The first holding member 321 is provided with a first insertion hole 3121, and the insertion portion 3111 is inserted into the first insertion hole 3121, so that the angle positioning structure 310 and the first holding member 321 are detachably connected, which is very convenient to operate.

Wherein, the radial section of the first insertion hole 3121 is a non-circular section, and the radial cross section of the socket 3111 along the first insertion hole 3121 is matched with the radial cross section of the first insertion hole 3121, so that the position of the angle positioning structure 310 relative to the first clamping member 321 is kept stable after the socket 3111 is inserted into the first insertion hole 3121. The radial cross section of the first insertion hole 3121 may be rectangular, oval, hexagonal, etc., without limitation thereto.

Specifically, as shown in fig. 3 and 4, a connection protrusion 3220 is convexly disposed on a side of the first clamping portion 3211 of the first clamping member 321 facing away from the second clamping portion 3221, and the first insertion hole 3121 is opened on the connection protrusion 3220. The radial cross section of the first insertion hole 3121 is rectangular.

The first clamping member 321 is provided with a limiting member (not shown in the figure) and an elastic pushing member (not shown in the figure), the limiting member is movably connected with the first clamping member 321, and the elastic pushing member is connected with the limiting member and applies an elastic force to the limiting member, so that the limiting member moves to a limiting position extending out of the inner side surface of the first insertion hole 3121 relative to the first clamping member 321. The surface of the opposite side of the inner side surface of the first insertion hole 3121 of the insertion part 3111 is provided with a limiting groove, and when the insertion part 3111 is inserted into the first insertion hole 3121, the limiting part is inserted into the limiting groove to limit the insertion part 3111, so that the risk that the insertion part 3111 is pulled out from the first insertion hole 3121 is reduced.

When the angle positioning structure 310 needs to be detached from the clamping structure 320, the inserting portion 3111 of the base 311 can be pulled out from the first insertion hole 3121 by force, at this time, the inserting portion 3111 exerts an acting force on the limiting member, and pushes the limiting member to move to an avoiding position retracted to the inner side surface of the first insertion hole 3121 relative to the first clamping member 321, so that the inserting portion 3111 can be pulled out from the first insertion hole 3121.

The position limiting member may be a spherical structure, and the elastic pushing member includes a spring, a torsion spring, and the like, which is not limited herein.

In other embodiments, the limiting member and the elastic pushing member may be disposed on the insertion portion 3111 of the base 311, and the limiting groove is disposed on the inner sidewall of the first insertion hole 3121. Alternatively, the socket portion 3111 is interference-fitted into the first socket 3121, so that the base 311 is detachably connected to the first clamping member 321, thereby reducing the risk of the socket portion 3111 falling out of the first socket 3121.

In other embodiments, the base 311 of the angular positioning structure 310 is coupled to the second clamp 322 to couple the angular positioning structure 310 to the clamp structure 320. The base 311 of the angular positioning structure 310 is detachably connected to the second clamping member 322, so that the angular positioning structure 310 can be detached from the clamping structure 320 when not in use. Specifically, a second insertion hole is formed in the second clamping member 322, and the insertion portion 3111 is inserted into the second insertion hole, so that the angle positioning structure 310 is detachably connected to the second clamping member 322. The connection between the base 311 and the second clamping member 322 can refer to the connection between the base 311 and the first clamping member 321, which is not described herein.

As shown in fig. 5, a first locking member 313 is further coupled to the abduction angle adjustment lever 312, and the first locking member 313 is coupled to the base 311 to lock the abduction angle adjustment lever 312. Therefore, after the abduction angle of the abduction angle adjustment rod 312 is adjusted to a proper degree, the first locking member 313 can be connected with the base 311 to lock the abduction angle adjustment rod 312, so that the abduction angle adjustment rod 312 is prevented from rotating relative to the base 311.

Specifically, a first through hole (not shown in the figure) is formed in the abduction angle adjusting lever 312, a first locking hole (not shown in the figure) is formed in the base 311, an internal thread is formed in the first locking hole, the first locking member 313 includes a first locking rod 3131 and a first locking knob 3132, one end of the first locking knob 3132 is connected with one end of the first locking rod 3131, the other end of the first locking rod 3131 is provided with an external thread, the other end of the first locking rod 3131 passes through the first through hole and is inserted into the first locking hole, and the external thread of the other end of the first locking rod 3131 is engaged with the internal thread in the first locking hole.

By rotating the first locking knob 3132, the first locking knob 3132 rotates the first locking lever 3131, so that the first locking knob 3132 approaches or moves away from the abduction angle adjustment lever 312. When the first locking knob 3132 moves to abut against the abduction angle adjustment lever 312, the first locking knob 3132 and the base 311 clamp the abduction angle adjustment lever 312 to lock the abduction angle adjustment lever 312; when the first locking knob 3132 moves to be separated from the abduction angle adjustment lever 312, the first locking knob 3132 contacts locking of the abduction angle adjustment lever 312, so that the abduction angle adjustment lever 312 can rotate around the first locking lever 3131 to adjust the number of abduction angle degrees of the abduction angle adjustment lever 312.

In other embodiments, as shown in fig. 6, the abduction angle adjustment rod 312a of the angular positioning structure 310a is in damped connection with the base 311 a. Accordingly, when a certain external force is applied to the abduction angle adjustment lever 312a, the abduction angle adjustment lever 312a can be rotated with respect to the base 311a, and when the external force disappears, the position of the abduction angle adjustment lever 312a with respect to the base 311a is maintained. This makes it possible to more conveniently adjust the abduction angle number of the abduction angle adjustment lever 312 a.

Specifically, the abduction angle adjustment lever 312a is coupled to the base 311a by a first damping screw 314, so that the abduction angle adjustment lever 312a is in damping connection with the base 311 a.

As shown in fig. 5, the angular positioning structure 310 includes a forward rake adjustment lever 315 rotatably coupled to the abduction angle adjustment lever 312. The number of forward inclination angles of the forward inclination angle adjustment lever 315 can be adjusted by rotating the forward inclination angle adjustment lever 315 with respect to the abduction angle adjustment lever 312.

The front rake angle adjustment rod 315 is further connected with a second locking member 316, and the second locking member 316 is connected with the abduction angle adjustment rod 312 to lock the front rake angle adjustment rod 315. Therefore, after the forward rake angle of the forward rake angle adjusting rod 315 is adjusted to a proper number of degrees, the forward rake angle adjusting rod 315 can be locked by connecting the second locking member 316 with the abduction angle adjusting rod 312, so that the forward rake angle adjusting rod 315 is prevented from rotating relative to the abduction angle adjusting rod 312.

Specifically, a through second through hole (not shown in the figure) is formed in the forward-rake angle adjusting rod 315, a second locking hole (not shown in the figure) is formed in the abduction angle adjusting rod 312, an internal thread is formed in the second locking hole, the second locking member 316 includes a second locking rod 3161 and a second locking knob 3162, one end of the second locking knob 3162 is connected with one end of the second locking rod 3161, the other end of the second locking rod 3161 is provided with an external thread, the other end of the second locking rod 3161 penetrates through the second through hole and is inserted into the second locking hole, and the external thread at the other end of the second locking rod 3161 is meshed with the internal thread in the second locking hole.

By rotating the second locking knob 3162, the second locking knob 3162 drives the second locking lever 3161 to rotate, so that the second locking knob 3162 approaches or leaves the front rake adjustment lever 315. When the second locking knob 3162 moves to abut against the front rake adjustment lever 315, the second locking knob 3162 and the abduction angle adjustment lever 312 clamp the front rake adjustment lever 315 to lock the front rake adjustment lever 315; when the second locking knob 3162 is moved to be separated from the forward inclination angle adjustment lever 315, the second locking knob 3162 contacts and locks the forward inclination angle adjustment lever 315, so that the forward inclination angle adjustment lever 315 can rotate around the second locking lever 3161 to adjust the forward inclination angle degree of the forward inclination angle adjustment lever 315.

In other embodiments, as shown in fig. 6, the forward rake adjustment rod 315a is in damped connection with the abduction angle adjustment rod 312 a. Accordingly, when a certain external force is applied to the forward inclination angle adjustment lever 315a, the forward inclination angle adjustment lever 315a can be rotated with respect to the abduction angle adjustment lever 312a, and when the external force disappears, the position of the forward inclination angle adjustment lever 315a with respect to the abduction angle adjustment lever 312a is maintained. This makes it possible to more conveniently adjust the number of forward inclination angles of the forward inclination angle adjustment lever 315 a.

Specifically, the forward-rake adjustment rod 315a and the abduction angle adjustment rod 312a are connected by a second damping screw 317, so that the forward-rake adjustment rod 315a and the abduction angle adjustment rod 312a are in damping connection.

Alternatively, a flare angle scale mark is provided at one end of the base 311 adjacent to the flare angle adjustment rod 312, or a flare angle scale mark is provided at one end of the flare angle adjustment rod 312 adjacent to the base 311, so as to adjust the flare angle number of the flare angle adjustment rod 312.

Alternatively, a front rake scale mark is provided at an end of the abduction angle adjustment lever 312 close to the front rake adjustment lever 315, or a front rake scale mark is provided at an end of the front rake adjustment lever 315 close to the abduction angle adjustment lever 312, so as to adjust the number of front rake angles of the front rake adjustment lever 315.

The embodiment of the application further provides an acetabular cup installer, which comprises an acetabular cup positioning component, the specific structure of the acetabular cup positioning component refers to the embodiments, and the acetabular cup installer adopts all technical schemes of all the embodiments, so that all beneficial effects brought by the technical schemes of the embodiments are at least achieved, and are not repeated herein.

The acetabular cup installer 100 comprises an installation rod 200 and an acetabular cup positioning assembly 300, wherein one end of the installation rod 200 is provided with a connecting part for detachable connection with an acetabular cup, and the first clamping part 3211 of the first clamping piece 321 and the second clamping part 3221 of the second clamping piece 322 of the acetabular cup positioning assembly 300 are clamped on two sides of the installation rod 200.

As shown in fig. 1, two position-limiting portions 210 are further disposed on the outer circumferential surface of the mounting rod 200, and the two position-limiting portions 210 are distributed on two sides of the clamping structure 320 along the length direction of the mounting rod 200 to limit the moving distance of the clamping structure 320 in the length direction of the mounting rod 200.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The acetabular cup positioning component and the acetabular cup installer provided by the embodiment of the application are described in detail, specific examples are applied in the description to explain the principle and the implementation of the application, and the description of the embodiment is only used for helping to understand the technical scheme and the core thought of the application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. An acetabular cup positioning assembly, comprising:

2. The acetabular cup positioning assembly of claim 1, wherein the clamp structure further comprises a resilient member, one end of the resilient member being connected to the first clamp and the other end of the resilient member being connected to the second clamp to apply a resilient force to the second clamp that moves the second clamp toward the first clamp.

3. The acetabular cup positioning assembly of claim 2, wherein the first clamp includes a first hinge connected to the first clamp portion and a first pressing portion connected to the first hinge; the second clamping piece comprises a second hinge part connected with the second clamping part and a second pressing part connected with the second hinge part; the first hinge part and the second hinge part are hinged with each other so as to enable the first clamping piece and the second clamping piece to be movably connected;

4. The acetabular cup positioning assembly of claim 1, wherein the first clamp includes a first flexible layer disposed on the first clamp portion and facing the second clamp portion; the second clamping piece further comprises a second flexible layer arranged on the second clamping portion and facing the first clamping portion.

5. The acetabular cup positioning assembly of claim 1, wherein the first clamp includes a first connection portion connected to the first clamp portion, the second clamp includes a second connection portion connected to the second clamp portion, the second connection portion being threadably connected to the first connection portion, the second connection portion being rotatable relative to the first connection portion to adjust a distance between the first and second clamp portions.

6. The acetabular cup positioning assembly of claim 5, wherein the first connecting portion comprises a fixing portion and an adjusting portion that are connected to each other, the fixing portion is connected to the first clamping portion, the adjusting portion is spaced apart from the first clamping portion, and a threaded hole is formed through the adjusting portion on a surface of the adjusting portion opposite to the first clamping portion;

7. The acetabular cup positioning assembly of any one of claims 1-6, wherein the angular positioning structure includes a base coupled to the first clamp or the second clamp, and an abduction angle adjustment stem rotatably coupled to the base;

the abduction angle adjusting rod is in damping connection with the base;

or still be connected with first retaining member on the abduction angle adjusting rod, first retaining member with the base is connected in order to lock abduction angle adjusting rod.

8. The acetabular cup positioning assembly of claim 7, wherein the angular positioning structure includes an anteversion adjustment rod rotationally coupled to the abduction angle adjustment rod;

9. The acetabular cup positioning assembly of claim 7, wherein the base is removably connected to the first clamp or the second clamp.

10. The acetabular cup positioning assembly of claim 9, wherein the base includes a socket portion;

11. An acetabular cup installer, comprising:

and the acetabular cup positioning assembly of any of claims 1-10, the first and second clamping portions of the acetabular cup positioning assembly clamp on opposite sides of the mounting stem.