阅读说明：本技术 融合髋置换导板装置及其制作方法 (Fused hip replacement guide plate device and manufacturing method thereof ) 是由 柴伟 陈继营 王君玲 纪荣泉 董骧 于 2019-03-01 设计创作，主要内容包括：本公开提出一种融合髋置换导板装置及其制作方法,融合髋置换导板装置包括导向耦合装置、定位针、横杆以及导向针；导向耦合装置开设有多个第一定位孔,导向耦合装置被配置为通过分别穿设于多个第一定位孔的定位针固定于股骨；导向耦合装置开设有基准导向孔,基准导向孔的轴线与一预设的髋臼锉的入锉方向相平行；横杆上开设有多个导向孔,导向孔的轴线与基准导向孔的轴线平行,横杆被配置为以基准导向孔的轴线为转轴绕导向耦合装置转动；导向针穿设于多个基准导向孔的其中之一并固定于股骨,导向针被配置为对髋臼锉导向。(The present disclosure provides a fused hip replacement guide plate device and a manufacturing method thereof, wherein the fused hip replacement guide plate device comprises a guide coupling device, a positioning needle, a cross rod and a guide needle; the guide coupling device is provided with a plurality of first positioning holes and is configured to be fixed on the femur through positioning needles respectively penetrating through the first positioning holes; the guide coupling device is provided with a reference guide hole, and the axis of the reference guide hole is parallel to the filing direction of a preset acetabular file; the transverse rod is provided with a plurality of guide holes, the axes of the guide holes are parallel to the axis of the reference guide hole, and the transverse rod is configured to rotate around the guide coupling device by taking the axis of the reference guide hole as a rotating shaft; the guide pin is inserted through one of the plurality of reference guide holes and fixed to the femur, and the guide pin is configured to guide the acetabular file.)

1. A fused hip replacement guide plate device, characterized in that:

the fusion hip replacement guide plate device comprises a guide coupling device, a positioning needle, a cross rod and a guide needle;

the guide coupling device is provided with a first positioning hole and is configured to be fixed on the femur through positioning needles respectively penetrating through the first positioning hole;

the guide coupling device is provided with a reference guide hole, and the axis of the reference guide hole is parallel to the filing direction of a preset acetabular file;

the cross bar is provided with a plurality of guide holes, the axes of the guide holes are parallel to the axis of the reference guide hole, and the cross bar is configured to rotate around the guide coupling device by taking the axis of the reference guide hole as a rotating shaft;

the guide needle is inserted through one of the guide holes and fixed around the femur or acetabulum, and the guide needle is configured to guide an acetabular file.

2. The fused hip replacement guide plate device according to claim 1, wherein the guide coupling device comprises:

one end of the cross rod is rotatably connected with the rotating shaft structure;

the femoral neck attaching plate is provided with a plurality of first positioning holes;

one end of the connecting column is connected with the femoral neck attaching plate, and the other end of the connecting column is connected with the rotating shaft structure.

3. The fused hip replacement guide plate device according to claim 2, wherein the pivot structure is disposed through the reference guide hole;

the cross rod is provided with a connecting end and a free end, and the connecting end is rotatably sleeved at the other end of the rotating shaft structure.

4. The fused hip replacement guide plate device according to claim 3, wherein the connecting end of the cross bar has a shaft hole for the rotation shaft structure to pass through, and the connecting end is provided with a window structure communicated with the shaft hole.

5. The fused hip replacement guide plate device according to claim 1, wherein the guide coupling device comprises:

the positioning guide plate is provided with a plurality of first positioning holes;

the guide coupling plate is provided with a plurality of second positioning holes;

the positions of the second positioning holes of the guide coupling plate correspond to the positions of the first positioning holes of the positioning guide plate one by one;

the positioning guide plate is configured to be placed on a femur, and the plurality of positioning pins are respectively arranged in the plurality of first positioning holes to be fixed on the femur.

6. The fused hip replacement guide plate device according to claim 5, wherein the positioning guide plate is made from three-dimensional image anatomical data of a femur and an acetabulum.

7. The fused hip replacement guide plate device according to claim 5, wherein the guide coupling plate is provided with a boss protruding therefrom, the boss is located between the two second positioning holes, and the reference guide hole is opened in the boss.

8. The fused hip replacement guide plate device according to claim 1, wherein a plurality of the guide holes are sequentially spaced along the extending direction of the cross bar.

9. The fused hip replacement guide plate device according to claim 1, further comprising:

the guide groove structure is arranged on the guide coupling device;

wherein the guide slot arrangement is configured to guide a osteotome to resect a femoral neck.

10. A method of making a fused hip replacement guide device comprising the steps of:

establishing a hip mechanical coordinate system according to the anatomical structure of a patient, setting abduction and anteversion angles according to use requirements, and determining the direction of a reference guide hole;

constructing a rotating shaft which is overlapped with the reference guide hole, and assembling the rotating shaft with the reference guide hole;

selecting an area attached to the femoral neck according to the space and the anatomical structure of the femoral neck to generate a femoral neck attaching plate;

performing Boolean operation on the femoral neck attaching plate and the rotating shaft to generate a guide coupling device;

and providing a cross rod, and sleeving the cross rod on the rotating shaft.

Technical Field

The present disclosure relates to surgical instruments, and more particularly to a fused hip replacement guide plate device and a method for manufacturing the same.

Background

The flexion ankylosis of a patient with ankylosing spondylitis causes contracture of tissues around a hip joint, and brings great inconvenience to exposure of a visual field of total hip joint replacement surgery, particularly when a femur is osteotomy, sometimes a femoral neck cannot be dislocated conventionally at the back lower part, the movement of the hip joint is limited or even impossible, the position of a lesser trochanter needs to be determined at the moment, and the femur is osteotomy at a position 1.5cm above the lesser trochanter, but the position of the lesser trochanter is not well determined, at the moment, secondary osteotomy is needed, namely, the femur neck is firstly osteotomy at the side close to an acetabulum, and then the hip joint can be moved. At this time, the second osteotomy is performed while keeping the femoral distance of 1-1.5cm from the distal end of the femoral neck. In addition, the placement angle of the acetabular cup prosthesis of the THA operation is 40-45 degrees of abduction and 10-15 degrees of anteversion, and patients with ankylosing spondylitis are often accompanied with spinal deformity and backward extension of pelvis, the anteversion angle and the abduction angle are increased by 5 degrees when the pelvis rotates by 10 degrees, so that the angle of the acetabular cup prosthesis needs to be adjusted correspondingly. The operator can only estimate the prosthesis angle by means of the traditional X-ray, and the accurate control of the abduction anteversion angle is difficult to realize, especially in the case of the vertebral column deformity and the pelvic rotation.

Disclosure of Invention

It is a primary object of the present disclosure to overcome at least one of the above-mentioned deficiencies of the prior art and to provide a fused hip replacement guide plate arrangement that improves osteotomy accuracy.

It is another primary object of the present disclosure to overcome at least one of the above-mentioned deficiencies of the prior art and to provide a method of making a fused hip replacement guide plate assembly that improves osteotomy accuracy.

In order to achieve the purpose, the following technical scheme is adopted in the disclosure:

according to one aspect of the present disclosure, there is provided a fused hip replacement guide device comprising a guide coupling device, a locator pin, a crossbar, and a guide pin; the guide coupling device is provided with a plurality of first positioning holes and is configured to be fixed on the femur through positioning needles respectively arranged in the first positioning holes; the guide coupling device is provided with a reference guide hole, and the axis of the reference guide hole is parallel to the filing direction of a preset acetabular file; the cross bar is provided with a plurality of guide holes, the axes of the guide holes are parallel to the axes of the guide holes, and the cross bar is configured to rotate around the guide coupling device by taking the axes of the reference guide holes as a rotating shaft; the guide needle is inserted through one of the guide holes and fixed around the femur or acetabulum, and the guide needle is configured to guide an acetabular file.

According to one embodiment of the present disclosure, the guiding coupling device includes a femoral neck attachment plate, a rotation shaft structure, and a connection post. Horizontal pole one end rotationally connect in the pivot structure, the attached board of thighbone neck has seted up a plurality ofly first locating hole. One end of the connecting column is connected with the femoral neck attaching plate, and the other end of the connecting column is connected with the rotating shaft structure.

According to one embodiment of the present disclosure, the rotating shaft structure is inserted into the reference guide hole; the cross rod is provided with a connecting end and a free end, and the connecting end is rotatably sleeved at the other end of the rotating shaft structure.

According to one of the embodiments of the present disclosure, the connecting end of the cross bar has a shaft hole for the rotation shaft structure to penetrate through, and the connecting end is provided with a window opening structure communicated with the shaft hole.

According to one embodiment of the present disclosure, the guide coupling device includes a positioning guide and a guide coupling plate. The positioning guide plate is provided with a plurality of first positioning holes; the guide coupling plate is provided with a plurality of second positioning holes; the positions of the second positioning holes of the guide coupling plate correspond to the positions of the first positioning holes of the positioning guide plate one by one; the positioning guide plate is configured to be placed on a femur, and the plurality of positioning pins are respectively arranged in the plurality of first positioning holes to be fixed on the femur.

According to one embodiment of the present disclosure, the positioning guide is made from three-dimensional image anatomical data of a femur and an acetabulum.

According to one embodiment of the present disclosure, a boss is convexly disposed on the guide coupling plate, the boss is located between the two second positioning holes, and the reference guiding hole is opened in the boss.

According to one embodiment of the present disclosure, the positioning pin is a k-wire. The guide holes are sequentially arranged at intervals along the extension direction of the cross rod.

According to one embodiment of the present disclosure, the fused hip replacement guide plate device further comprises: the guide groove structure is arranged on the guide coupling device; wherein the guide slot arrangement is configured to guide a osteotome to resect a femoral neck.

According to another aspect of the present disclosure, there is provided a method of making a fused hip replacement guide plate device, comprising the steps of:

establishing a hip mechanical coordinate system according to the anatomical structure of a patient, setting abduction and anteversion angles according to use requirements, and determining the direction of a reference guide hole;

constructing a rotating shaft which is overlapped with the reference guide hole, and assembling the rotating shaft with the reference guide hole;

selecting an area attached to the femoral neck according to the space and the anatomical structure of the femoral neck to generate a femoral neck attaching plate;

performing Boolean operation on the femoral neck attaching plate and the rotating shaft to generate a guide coupling device;

and providing a cross rod, and sleeving the cross rod on the rotating shaft.

According to the technical scheme, the fused hip replacement guide plate device and the manufacturing method thereof have the advantages and positive effects that:

the utility model provides a fuse hip replacement baffle device includes direction coupling device and horizontal pole, and direction coupling device sets up the axis and the reference guiding hole that the income file direction of predetermined acetabular bone file is parallel, and the horizontal pole rotationally connects in the reference guiding hole and sets up the parallel guiding hole of a plurality of axes and reference guiding hole's axis. In view of the above, the horizontal pole is used for using the axis of benchmark guiding hole to rotate around direction coupling device as the pivot to for operator's intraoperative mill file acetabular bone provides accurate direction, greatly improved the osteotomy accuracy.

Drawings

Various objects, features and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments thereof, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the disclosure and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is a schematic diagram of a fused hip replacement guide plate arrangement according to an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating a structure of a positioning guide according to an exemplary embodiment;

FIG. 3 is a schematic structural diagram illustrating a guide coupling plate according to an exemplary embodiment;

FIG. 4 is a schematic view of the cross bar construction;

FIG. 5 is a schematic diagram of a fused hip replacement guide plate arrangement according to an exemplary embodiment;

FIG. 6 shows a schematic view of a fused hip replacement guide plate arrangement according to another exemplary embodiment.

The reference numerals are explained below:

100. a fused hip replacement guide plate device;

110. a guide coupling device;

111. a first positioning hole;

112. a reference guide hole;

113. boss

120. A positioning pin;

130. a cross bar;

131. guide hole

132. A connecting end;

1321. a shaft hole;

1322. a windowing structure;

133. a free end;

150. a rotating shaft structure;

160. connecting columns;

170. positioning the guide plate;

171. a second positioning hole;

172. a guide coupling plate;

173. a femoral neck attachment plate;

180. the guide way structure.

Detailed Description

Exemplary embodiments that embody features and advantages of the present disclosure are described in detail below in the specification. It is to be understood that the disclosure is capable of various modifications in various embodiments without departing from the scope of the disclosure, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

In the following description of various exemplary embodiments of the disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the disclosure may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized, and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the disclosure, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of this disclosure.

As shown in fig. 1, in the present embodiment, the fused hip replacement guide device 100 mainly includes a guide coupling device 110, a positioning pin 120, a cross bar 130, and a guide pin. Referring to fig. 2-6 in combination, a schematic structural view of a positioning guide embodying the principles of the present disclosure is representatively illustrated in fig. 2; a schematic structural view of a guide coupling plate capable of embodying the principles of the present disclosure is representatively illustrated in fig. 3; FIG. 4 representatively shows a schematic view of the cross bar construction; FIG. 5 is a schematic diagram of a fused hip replacement guide plate arrangement according to an exemplary embodiment; FIG. 6 shows a schematic view of a fused hip replacement guide plate arrangement according to another exemplary embodiment. The structure, connection mode and functional relationship of the main components of the fused hip replacement guide plate device proposed by the present disclosure are described in detail below with reference to the above drawings.

As shown in fig. 1, in the present embodiment, the guide coupling device 110 has a plurality of first positioning holes 111, and the guide coupling device 110 is fixed to the femur by positioning pins 120 inserted into the plurality of first positioning holes 111. The guide coupling device 110 is provided with a reference guide hole 112, and the axis of the reference guide hole 112 is parallel to the filing direction of a preset acetabular file. One end of the cross bar 130 is rotatably connected to the rotating shaft structure 150, the cross bar 130 is provided with a plurality of guide holes 131, the axes of the guide holes 131 are parallel to the axis of the reference guide hole 112, and the cross bar 130 is configured to rotate around the guide coupling device 110 by taking the axis of the reference guide hole 112 as a rotating shaft. A guide pin is selectively inserted through one of the plurality of guide holes 131 and fixed around the femur or acetabulum, and the guide pin is used for guiding an acetabular file. Accordingly, the cross bar 130 is used for rotating around the guide coupling device 110 by taking the axis of the reference guide hole 112 as a rotating shaft, so that an accurate direction is provided for an operator to file the acetabulum in an operation, and the bone cutting accuracy is greatly improved.

Further, as shown in fig. 3, in the present embodiment, the guide coupling device 110 is provided with two second positioning holes 172, and the two second positioning holes 172 are spaced apart from each other. After the guiding coupling device 110 is stabilized with the patient's bone, the two second positioning holes 172 are used to position the guiding coupling device 110 in the patient's bone, and the two positioning pins 120 are inserted through the two second positioning holes 172 to fix the position of the guiding coupling device 110 in the bone. In other embodiments, the number of the second positioning holes 172 may not be limited to two, but may also be two or more, and the two or more second positioning holes 172 are spaced apart to fix the position of the guide coupling device 110 in the bone.

Further, as shown in fig. 4, in the present embodiment, a plurality of guide holes 131 are sequentially arranged at intervals in the extending direction of the cross bar 130. The plurality of guide holes 131 arranged at sequential intervals allows the guide needle to pass through at different positions, and also improves the accuracy of the insertion position of the guide needle.

Further, as shown in fig. 5, based on the design that the plurality of guide holes 131 are sequentially arranged at intervals in the extending direction of the cross bar 130, in the present embodiment, the plurality of guide holes 131 are uniformly arranged at intervals. The guide holes 131 arranged at regular intervals can improve the accuracy of the position where the pilot pin 120 is inserted into the cross bar 130.

Further, as shown in fig. 5, in the present embodiment, the positioning pin 120 may preferably be a k-wire, and the guiding pin may preferably be a k-wire.

Further, as shown in fig. 1, in the present embodiment, the guiding coupling device 110 is made according to three-dimensional image anatomical data of the femur and the acetabulum. The guiding coupling device 110 supported by the three-dimensional image anatomical data can accurately set the proper abduction and forward inclination angles of the patient before the operation.