CN213941067U - Knee joint prosthesis shin bone side positioner - Google Patents
Knee joint prosthesis shin bone side positioner Download PDFInfo
- Publication number
- CN213941067U CN213941067U CN202021890358.3U CN202021890358U CN213941067U CN 213941067 U CN213941067 U CN 213941067U CN 202021890358 U CN202021890358 U CN 202021890358U CN 213941067 U CN213941067 U CN 213941067U
- Authority
- CN
- China
- Prior art keywords
- tibia
- measuring plate
- prosthesis
- marrow
- shin bone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a knee joint prosthesis shin bone side positioner, including the shin bone measuring plate and open the marrow brill, the shin bone measuring plate is with the outline looks adaptation of shin bone prosthesis, opens the marrow and bores the setting on the shin bone measuring plate, and the position that opens the marrow and bore is corresponding with the position in pulp cavity, and the shin bone measuring plate pastes the clothes on the shin bone, opens the marrow and bores and be located pulp cavity department, measures the shin bone measuring plate and can confirm with the shin bone prosthesis of shin bone looks adaptation with the outline of shin bone. The tibia measuring plate of the knee joint prosthesis tibia side positioning device is matched with the outer contour of the tibia prosthesis, the tibia measuring plate is attached to the tibia, the position where the marrow opening drill is located is the position of a marrow cavity, the marrow opening drill is rotated to open the marrow of the tibia, the marrow cavity is positioned simply, and operation is simple. After the tibia measuring plate is attached to the tibia, the outer contour of the tibia measuring plate and the outer contour of the tibia are measured, and the model of the tibia is accurately determined as the tibia measuring plate is matched with the outer contour of the tibia prosthesis, namely the outer contour of the tibia prosthesis and the outer contour of the tibia are measured.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a knee joint prosthesis shin bone side positioner.
Background
In the medical field, knee replacement is a well established orthopaedic procedure that uses a knee prosthesis to replace all or part of a patient's natural knee that has been damaged. The difference between the knee joint replacement of children and the knee joint replacement of adults lies in that factors such as the regrowth of lower limbs of children, different anatomical characteristics, soft tissue strength and the like need to be considered, and then the osteotomy position and the type of the needed knee joint prosthesis are judged. The knee joint prosthesis of the children is provided with medullary cavity extending handle structures at the femur side and the tibia side, and the prosthesis is fixed by inserting the medullary cavity extending handles into medullary cavities and supporting the prosthesis by the osteotomy surface, so that the good matching of the medullary cavity extending handles and the natural medullary cavities, the good supporting of the osteotomy surface and the prosthesis and the fitting of the prosthesis accord with the force line requirements of lower limbs of human bodies are of great importance.
At present, for the positioning of the knee joint prosthesis of the child on the tibia side, the tibia is often positioned by referring to the anatomical features of the tibia of the child through experience of a doctor. On one hand, due to the fact that doctors have different experiences and the anatomical characteristics of the tibia side of children are different from that of the tibia of adults, many doctors are difficult to find out a proper medullary cavity positioning position; on the other hand, because knee joint prostheses have a plurality of models, doctors can hardly judge and select proper prosthesis models and tibia covers by means of memory and naked eyes.
SUMMERY OF THE UTILITY MODEL
The utility model provides a knee joint prosthesis shin bone side positioner to shin bone pulp cavity location difficulty when solving present children's knee joint prosthesis installation, the prosthesis model is selected and can only rely on naked eye and experience to judge, judges the poor problem of the degree of accuracy.
The problem that the tibia marrow cavity is difficult to position when the existing knee joint prosthesis for children is judged and installed only by naked eyes and experience when the model is selected is solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a knee prosthesis tibial side positioning device comprising:
the tibia measuring plate is matched with the outer contour of the tibia prosthesis;
the marrow opening drill is arranged on the tibia measuring plate, the position of the marrow opening drill corresponds to the position of a marrow cavity, the tibia measuring plate is attached to the tibia, the marrow opening drill is located in the marrow cavity of the tibia, and a tibia prosthesis matched with the tibia is determined by measuring the outer contours of the tibia measuring plate and the tibia.
The tibia measuring plate is provided with tibia measuring plates of different specifications, and the specifications of the tibia measuring plates are matched with those of the tibia prosthesis.
The tibia measuring plate is provided with a contrasting portion, and the outer contour shape of the contrasting portion is matched with the outer contour shape of the tibia prosthesis.
The tibia measuring plate is provided with a handle part, and a long rod can be installed on the handle part.
Wherein, the drill for opening the marrow comprises:
the tibia measuring plate is arranged on the guide sleeve;
the drill rod penetrates through the guide sleeve and the tibia measuring plate and is inserted into the tibia, a drill bit is arranged at the bottom of the drill rod, a quick-change connector is arranged at the top of the drill rod, a step portion is arranged on the drill rod, and the step portion can be clamped at the top of the guide sleeve.
Wherein, the comparison part on the tibia measuring plate is in transition connection with the handle part;
a trapezoidal through hole is formed in the tibia measuring plate and is close to the marrow opening drill.
The tibia measuring plate is of an axisymmetric structure, and the axis of the marrow opening drill is located on the central axis of the tibia measuring plate.
Wherein, the opposite part is of a wing-shaped structure, and the two wings are respectively provided with a positioning hole.
Wherein, be equipped with the through-hole on the shin bone measuring plate, stock can insert in the through-hole.
Wherein the through hole is provided with at least one.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:
in the above scheme, the outer contour looks adaptation of board and tibial prosthesis is measured to knee joint prosthesis shin bone side positioner's shin bone, and when the shin bone was measured the board and is laminated on the shin bone, the position that is located the position that the marrow of opening on the shin bone was measured the board and is bored the position for the marrow chamber, rotates the marrow and bores and can open the marrow to the shin bone, and the marrow chamber location is simple, easy operation. After the tibia measuring plate is attached to the tibia, the outer contour of the tibia measuring plate and the outer contour of the tibia are measured, and the model of the tibia is accurately determined as the tibia measuring plate is matched with the outer contour of the tibia prosthesis, namely the outer contour of the tibia prosthesis and the outer contour of the tibia are measured.
Drawings
Fig. 1 is a schematic structural view of a tibial side positioning device of a knee joint prosthesis of the present invention;
FIG. 2 is a top view of the tibial side positioning device of the knee joint prosthesis of the present invention;
fig. 3 is a front view of the tibial side positioning device of the knee joint prosthesis of the present invention.
[ reference numerals ]
1. A marrow opening drill; 11. a joint; 13. positioning a drill tip;
2. a tibia measuring plate; 21. a contrasting portion; 22. positioning holes; 23. a through hole; 24. a guide sleeve; 25. a trapezoidal through hole; 26. a handle portion.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the present embodiment provides a knee joint prosthesis tibia side positioning device, which includes a tibia measurement plate 2 and a marrow opening drill 1, wherein the tibia measurement plate 2 is adapted to an outer contour of a tibia prosthesis, the marrow opening drill 1 is disposed on the tibia measurement plate 2, a position of the marrow opening drill 1 corresponds to a position of a marrow cavity, the tibia measurement plate 2 is attached to the tibia, the marrow opening drill 1 is located at the marrow cavity of the tibia, and the tibia prosthesis adapted to the tibia is determined by measuring outer contours of the tibia measurement plate 2 and the tibia. The knee joint prosthesis tibia side positioning device solves the problem that the traditional medullary cavity positioning position and tibia prosthesis model are difficult to select. The tibia measuring plate 2 is matched with the outer contour of the tibia prosthesis, namely matched with the outer contour of the tibia, when the tibia measuring plate 2 is attached to the tibia, the position of the marrow opening drill 1 on the tibia measuring plate 2 is the position of a marrow cavity, the marrow cavity can be opened by rotating the marrow opening drill 1, and the marrow cavity is simple in positioning and easy to operate. After the tibia measuring plate 2 is attached to the tibia, the outer contours of the tibia measuring plate 2 and the tibia are measured, and the model of the tibia prosthesis is determined as the tibia measuring plate 2 is matched with the outer contour of the tibia prosthesis, namely the outer contours of the tibia prosthesis and the tibia are measured.
The tibia measuring plate 2 of this implementation is equipped with the tibia measuring plate 2 of different specifications, and the specification of the tibia measuring plate 2 is adapted with the specification of the tibia prosthesis. The tibia measuring plate 2 is provided with a contrasting part 21 and a handle part 26, the outline shape of the contrasting part 21 is matched with the outline shape of the tibia prosthesis, and the handle part 26 can be provided with a long rod. One end of the tibia measuring plate 2 is provided with a comparing part 21, the other end is provided with a handle part 26, and the comparing part 21 and the handle part 26 on the tibia measuring plate 2 are in transition connection. The shape of the comparison portion 21 is consistent with the outer contour of the tibial prosthesis with the preset specification, the tibial measurement plate 2 can be correspondingly divided into different specification models according to the tibial prostheses with different specifications, the tibial measurement plates 2 with different specifications are attached to the natural tibia in sequence when the tibial measurement instrument is used, and the comparison measurement and positioning of the outer contour of the tibia are carried out through the comparison portion 21, so that the knee joint prosthesis with the most suitable specification model is selected.
The tibia measuring plate 2 of the embodiment is of an axisymmetric structure, the axis of the marrow opening drill 1 is located on the central axis of the tibia measuring plate 2, and the marrow opening drill 1 can obtain more stable support during working. Be equipped with stalk portion 26 on the shin bone measuring plate 2, mountable stock on the stalk portion 26 compares and is connected between part 21 and the stalk portion 26, and the shin bone measuring plate 2 is gone up and is close to the marrow brill 1 department and is equipped with trapezoidal through-hole 25. The opposite portion 21 is of a wing-shaped structure, the two wings are respectively provided with a positioning hole 22, and the tibia measuring plate 2 can be fixed on the tibia through the positioning holes 22 by using a long nail. The two wings are respectively provided with two positioning holes 22, and the two positioning holes 22 are preferably arranged and are respectively arranged on the two sides of the marrow-opening drill 1 symmetrically, so that the positioning is stable and reliable. The positioning hole 22 is internally threaded and is adapted to a threaded positioning pin. The wing-shaped structure is designed to fix the tibia measuring plate 2 on the natural tibia more conveniently. The handle part 26 is provided with a through hole 23 for the long rod to pass through, the doctor can compare the lower limb force lines by inserting the long rod into the through hole 23, and the comparison part 21 is in a wing-shaped structure. The number of the through holes 23 is at least 1, preferably 2, and the through holes 23 are arranged at intervals along the central axis of the tibia measuring plate 2. The trapezoidal through hole 25 facilitates observation of the tibial medullary drill 1 and the state of the tibia during medullary opening. The through hole 23 is preferably a circular structure, and a cylindrical long rod can be inserted into the circular hole so as to compare the lower limb force lines of children of different ages. One end of the opposite part 21 of the tibia measuring plate, which is far away from the handle part 26, is provided with an arc-shaped notch, and the arc-shaped notch is consistent with the outer contour of the tibia prosthesis to be used, so that the implant product with a proper size can be conveniently observed and selected.
The marrow opening drill 1 of the embodiment comprises a guide sleeve 24 and a drill rod, wherein the tibia measuring plate 2 is arranged on the guide sleeve 24; the drilling rod passes guide sleeve 24 and shin bone measuring plate 2, inserts in the shin bone, and the bottom of drilling rod is the drill bit, and the top of drilling rod is the quick change interface, is equipped with the ladder portion on the drilling rod, and the ladder portion can block in the top of guide sleeve 24. The drill rod of the embodiment is provided with a quick-change connector and a connector 11 matched with the power drill, so that the power drill can be conveniently and quickly connected. The guide sleeve 24 is designed to provide a guiding support for the drill rod. The step part on the drill rod is matched with the top end of the guide sleeve 24 to play a role in limiting, and the drilling depth of the core making drill 1 is limited. One end of the drill rod is provided with a side edge and a positioning drill tip 13, and when the marrow is opened, the positioning drill tip 13 is used for positioning, and then the side edge is used for drilling and opening the marrow.
According to the scheme, the knee joint prosthesis tibia side positioning device can be used for attaching the tibia measuring plate to the tibia in knee joint replacement surgery, particularly in hinge type knee joint prosthesis replacement surgery of children, and accurately positioning the medullary cavity; through the comparison measurement of the comparison part 21 and the natural tibia, the proper prosthesis model is quickly and accurately found; the through hole 23 of the handle part 26 can be inserted with a long rod, so that the doctor can conveniently check the lower limb force line and the operation efficiency is improved.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A knee prosthesis tibial side positioning device, comprising:
the tibia measuring plate is matched with the outer contour of the tibia prosthesis;
the marrow opening drill is arranged on the tibia measuring plate, the position of the marrow opening drill corresponds to the position of a marrow cavity, the tibia measuring plate is attached to the tibia, the marrow opening drill is located in the marrow cavity of the tibia, and a tibia prosthesis matched with the tibia is determined by measuring the outer contours of the tibia measuring plate and the tibia.
2. The knee joint prosthesis tibia lateral positioning device according to claim 1, wherein the tibia measuring plate is provided with tibia measuring plates of different specifications, and the specification of the tibia measuring plate is matched with that of the tibia prosthesis.
3. The tibial side positioning device of claim 1, wherein a contrasting portion is disposed on the tibial measurement plate, and the outer contour shape of the contrasting portion is adapted to the outer contour shape of the tibial prosthesis.
4. The knee joint prosthesis tibia lateral positioning device according to claim 1, wherein a handle portion is arranged on the tibia measuring plate, and a long rod can be mounted on the handle portion.
5. The knee joint prosthesis tibial side positioning device of claim 1, wherein the coring drill comprises:
the tibia measuring plate is arranged on the guide sleeve;
the drill rod penetrates through the guide sleeve and the tibia measuring plate and is inserted into the tibia, a drill bit is arranged at the bottom of the drill rod, a quick-change connector is arranged at the top of the drill rod, a step portion is arranged on the drill rod, and the step portion can be clamped at the top of the guide sleeve.
6. The tibial side positioning device of claim 1, wherein said tibial measurement plate has a transition connection between a counterpart and a stem;
a trapezoidal through hole is formed in the tibia measuring plate and is close to the marrow opening drill.
7. The knee joint prosthesis tibia lateral positioning device according to claim 1, wherein the tibia measuring plate is of an axisymmetric structure, and an axis of the medullary opening drill is located on a central axis of the tibia measuring plate.
8. The tibial side positioning device of claim 3, wherein said contrasting portion is a wing-shaped structure, and positioning holes are respectively formed on both wings.
9. The tibial side positioning device of claim 4, wherein said tibial measurement plate has a through hole, and said shaft is insertable into said through hole.
10. The knee prosthesis tibial side positioning device of claim 9, wherein said through hole is provided with at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021890358.3U CN213941067U (en) | 2020-09-02 | 2020-09-02 | Knee joint prosthesis shin bone side positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021890358.3U CN213941067U (en) | 2020-09-02 | 2020-09-02 | Knee joint prosthesis shin bone side positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213941067U true CN213941067U (en) | 2021-08-13 |
Family
ID=77193017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021890358.3U Expired - Fee Related CN213941067U (en) | 2020-09-02 | 2020-09-02 | Knee joint prosthesis shin bone side positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213941067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813007A (en) * | 2021-10-13 | 2021-12-21 | 山东大学齐鲁医院(青岛) | Angle-adjustable femoral punching device |
-
2020
- 2020-09-02 CN CN202021890358.3U patent/CN213941067U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813007A (en) * | 2021-10-13 | 2021-12-21 | 山东大学齐鲁医院(青岛) | Angle-adjustable femoral punching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103445829B (en) | Tibial trial apparatus and its application method | |
| CN103445828B (en) | Shin bone orthopaedic instrumentation and its application method | |
| EP0666728B1 (en) | Orthopaedic cutting instrument and prosthetic device | |
| CN104042310B (en) | For the femur orthopaedic instrumentation component for the biasing that shapes | |
| CN104042309B (en) | Femur system shank surgical instruments and its assembly method | |
| EP0140642B1 (en) | Acetabulum sizer and drill guide | |
| US9668749B2 (en) | Adjustable revision guide | |
| EP2155119B1 (en) | Flexible intramedullary rod | |
| US20120143200A1 (en) | Positioning guide and a femur bone cutting guide system | |
| CN104042256B (en) | Femur orthopaedic instrumentation for the biasing that shapes | |
| WO2002002021A2 (en) | Instruments and methods for use in performing knee surgery | |
| JPH01250250A (en) | Apparatus used in knee prosthesis method | |
| WO2008070027A3 (en) | Method and apparatus for performing an open wedge, low femoral osteotomy | |
| US3815590A (en) | Off-set trial prosthesis device and method for hip prosthesis surgery | |
| CN104013456A (en) | Femoral orthopaedic surgical instrument including a measurement device and method of use of same | |
| CN213941067U (en) | Knee joint prosthesis shin bone side positioner | |
| CN110960289B (en) | Single-condyle bone cutting guide plate and positioning method thereof | |
| CN104814786A (en) | Multi-beam reconstruction technology for knee-joint ACL (anterior cruciate ligament) for department of orthopaedics, and application of ACL multi-beam reconstruction technology | |
| CN213372578U (en) | Femoral locator for reconstruction of anterior fork ligament | |
| CN102805657A (en) | Medullary cavity file for combined hip joint replacement operation | |
| CN209770551U (en) | Reconstruction locator for dissecting anterior cruciate ligament through tibial bone canal | |
| CN110720962A (en) | Bone cutting system for knee joint replacement | |
| CN217448021U (en) | Positioning tool for positioning original hip joint center in hip joint replacement | |
| CN210541947U (en) | Near-end forming instrument | |
| CN211131266U (en) | Bone cutting system for knee joint replacement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |