CN213641423U - Knee joint pulley pressure sensing type thighbone examination mould - Google Patents
Knee joint pulley pressure sensing type thighbone examination mould Download PDFInfo
- Publication number
- CN213641423U CN213641423U CN202021699054.9U CN202021699054U CN213641423U CN 213641423 U CN213641423 U CN 213641423U CN 202021699054 U CN202021699054 U CN 202021699054U CN 213641423 U CN213641423 U CN 213641423U
- Authority
- CN
- China
- Prior art keywords
- sensor array
- pressure sensor
- femur
- patella
- test model
- 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
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 20
- 210000001694 thigh bone Anatomy 0.000 title description 5
- 210000000689 upper leg Anatomy 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 14
- 210000004417 patella Anatomy 0.000 claims abstract description 14
- 210000003127 knee Anatomy 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 5
- 210000004285 patellofemoral joint Anatomy 0.000 abstract description 14
- 210000004872 soft tissue Anatomy 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 208000006820 Arthralgia Diseases 0.000 description 1
- 208000012659 Joint disease Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 229940126680 traditional chinese medicines Drugs 0.000 description 1
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a knee joint pulley pressure sensing type femur test model, which comprises a femur test model body, wherein a pressure sensor array which is a cambered surface is embedded at the cambered end of the femur test model body close to a patella; the inner cambered surface end of the pressure sensor array is positioned in the femur test mould body and is internally provided with an installation cavity; the installation cavity is internally provided with a circuit board, a battery electrically connected with the circuit board, a processor, a wireless communication device and an FPC interface. The utility model has the advantages that: the pressure sensor array is embedded at the arc-shaped end of the femur trial body close to the patella, so that in the test process of artificial knee joint replacement trial, the pressure value of the patellofemoral joint at different knee bending angles can be accurately measured, the contact area of the patellofemoral joint and the sliding track of the patella are simulated, the adjustment of the matching degree of the patellofemoral joint is guided, the femur trial body is suitable for the accurate adjustment of the balance of the soft tissues at the inner side and the outer side of the patella, and the operation effect is improved.
Description
Technical Field
The utility model relates to a thighbone examination mould specifically indicates knee joint coaster pressure sensing type thighbone examination mould.
Background
With the increasing aging of the population, the number of patients with knee joint diseases is on the rising trend, the number of artificial knee joint replacement operations performed by hospitals every year is more and more, the problems of knee joint pain and function loss of patients are solved by the artificial knee joint replacement operations, the pain of the patients is relieved, and the life quality is greatly improved. In the knee joint replacement operation, besides recovering good lower limb force line and good tension balance of inner soft tissue, the tension of the inner soft tissue and the outer soft tissue of the patella and the pressure of the patellofemoral joint need to be adjusted, and the precalgia of the knee can be caused by unstable patella or overhigh pressure of the patellofemoral joint, which is one of the reasons of the traditional Chinese medicines influencing the curative effect after the knee joint replacement operation. At present, patellofemoral joint soft tissue balance and stress assessment are generally completed manually by surgeons according to experience, and the knee joint replacement surgery effect is not improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a knee joint coaster pressure sensing type thighbone examination mould, it has simple structure, convenient to use's characteristics.
In order to achieve the purpose, the knee joint pulley pressure sensing type femur test model designed by the utility model comprises a femur test model body, wherein a pressure sensor array in a cambered surface is embedded at the cambered end of the femur test model body, which is close to the patella; the pressure sensor array is composed of a plurality of flexible film type pressure sensors, the outer arc surface end of the pressure sensor array is flush with the arc end, and the inner arc surface end of the pressure sensor array is positioned in the femur test model body and is internally provided with an installation cavity; a circuit board, a battery, a processor, a wireless communication device and an FPC interface which are electrically connected with the circuit board are arranged in the mounting cavity; the pressure sensor array is electrically connected with the processor through the FPC interface, and the processor is connected with the wireless communication device.
Further, the trial model also comprises a display in wireless communication connection with the wireless communication device.
Furthermore, a supporting cushion block is arranged in the mounting cavity; the circuit board is arranged on one side of the supporting cushion block back to the pressure sensor array.
Further, the contour shape and the arc area of the supporting cushion block and the pressure sensor array are the same.
The utility model has the advantages that: the pressure sensor array is embedded at the arc-shaped end of the femur trial body close to the patella, so that in the test process of artificial knee joint replacement trial, the pressure value of the patellofemoral joint at different knee bending angles can be accurately measured, the contact area of the patellofemoral joint and the sliding track of the patella are simulated, the adjustment of the matching degree of the patellofemoral joint is guided, the accurate adjustment of the balance of the inner and outer soft tissues of the patella is suitable, and the operation effect is improved.
Drawings
Fig. 1 is the structural schematic diagram of the knee joint pulley pressure sensing type femur test model of the present invention.
Fig. 2 is a schematic sectional structure view of fig. 1.
In the drawings, 1, a femur test model body; 2. an array of pressure sensors; 3. a mounting cavity; 4. a circuit board; 5. a battery; 6. a processor; 7. a wireless communication device; 8, FPC interface; 9. and supporting the cushion block.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The knee joint pulley pressure sensing type femur test model shown in fig. 1 and 2 comprises a femur test model body 1, wherein a pressure sensor array 2 in a cambered surface is embedded at the cambered end close to the patella; the pressure sensor array 2 consists of a plurality of flexible film type pressure sensors, the outer arc surface end of the pressure sensor array 2 is flush with the arc end, and the inner arc surface end of the pressure sensor array 2 is positioned in the femur test model body 1 and is internally provided with an installation cavity 3; a circuit board 4, a battery 5 electrically connected with the circuit board 4, a processor 6, a wireless communication device 7 and an FPC interface 8 are arranged in the mounting cavity 3; the pressure sensor array 2 is electrically connected to the processor 6 through the FPC interface 8, and the processor 6 is connected to the wireless communication device 7. A supporting cushion block 9 is also arranged in the mounting cavity 3; the circuit board 4 is arranged on one side of the supporting cushion block 9, which is back to the pressure sensor array 2. The contour shape and the arc area of the supporting cushion block 9 are the same as those of the pressure sensor array 2.
In order to feed back the patellofemoral joint contact area and the patella sliding track more clearly, the trial model for guiding the adjustment of the patellofemoral joint matching degree further comprises a display connected with the wireless communication device 7 in a wireless communication mode.
In order to monitor the state of a knee joint replacement prosthesis in the prior art, a pressure sensor assembly is generally arranged on a tibial prosthesis or a femoral prosthesis or a cushion block between the tibial prosthesis and the femoral prosthesis, and the state of the replacement prosthesis is detected through the pressure sensor; this approach can guide the medial and lateral soft tissue balance of the knee joint, but cannot detect patellofemoral joint soft tissue tension. The femur trial model of the embodiment is utilized to measure the pressure value of the patellofemoral joint at different knee bending angles in advance, simulate the contact area of the patellofemoral joint and the patella sliding track, design and adjust the replacement prosthesis according to the simulated contact area and the sliding track, and effectively improve the later stage operation effect and prolong the service life of the implanted prosthesis.
It will be apparent that the foregoing is merely a preferred embodiment of the invention and that numerous changes, including the number, size, shape and type of pressure sensors, may be made therein without departing from the true spirit and scope of the invention. Accordingly, any modifications, equivalents, improvements and the like which are obvious to those skilled in the art are intended to be included within the scope of the present invention.
Claims (4)
1. A knee joint pulley pressure sensing type femur test model is characterized by comprising a femur test model body (1), wherein a pressure sensor array (2) in a cambered surface is embedded at the cambered end close to a patella; the pressure sensor array (2) is composed of a plurality of flexible film type pressure sensors, the outer arc surface end of the pressure sensor array (2) is flush with the arc end, and the inner arc surface end of the pressure sensor array (2) is positioned in the femur test model body (1) and is internally provided with an installation cavity (3); a circuit board (4), a battery (5) electrically connected with the circuit board (4), a processor (6), a wireless communication device (7) and an FPC interface (8) are arranged in the mounting cavity (3); the pressure sensor array (2) is electrically connected with the processor (6) through the FPC interface (8), and the processor (6) is connected with the wireless communication device (7).
2. The knee pulley pressure sensing femoral trial of claim 1 further comprising a display in wireless communication connection with the wireless communication device (7).
3. The knee pulley pressure sensing type femur test model according to claim 1, wherein a support cushion block (9) is further provided in the mounting cavity (3); the circuit board (4) is arranged on one side, back to the pressure sensor array (2), of the supporting cushion block (9).
4. The knee pulley pressure sensing femoral trial of claim 3 wherein the bolster block (9) is the same size as the contour and arc area of the pressure sensor array (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021699054.9U CN213641423U (en) | 2020-08-14 | 2020-08-14 | Knee joint pulley pressure sensing type thighbone examination mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021699054.9U CN213641423U (en) | 2020-08-14 | 2020-08-14 | Knee joint pulley pressure sensing type thighbone examination mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213641423U true CN213641423U (en) | 2021-07-09 |
Family
ID=76692444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021699054.9U Expired - Fee Related CN213641423U (en) | 2020-08-14 | 2020-08-14 | Knee joint pulley pressure sensing type thighbone examination mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213641423U (en) |
-
2020
- 2020-08-14 CN CN202021699054.9U patent/CN213641423U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9044159B2 (en) | Measurement and use of in-socket residual limb volume change data for prosthetic fitting | |
| US6468232B1 (en) | Method and apparatus for measuring properties of the pelvic floor muscles | |
| CN103565438B (en) | Ligament balance regulates auxiliary device and knee joint bending thereof and outward turning angle computation method | |
| JP2012500667A (en) | Force sensing method for partial and total knee arthroplasty | |
| CN110638476B (en) | Gap-adjustable knee joint pressure measuring device for total knee arthroplasty | |
| CN111419253A (en) | Knee joint soft tissue pressure measuring device, measuring system and measuring method | |
| CN105832448A (en) | Intelligent knee joint tibia platform test pad module | |
| CN105919607A (en) | Human body knee joint soft tissue pressure and track measurement system | |
| CN112370218A (en) | Pressure measurement device, system and method for patella replacement | |
| CN202740012U (en) | Ligament balance regulation auxiliary device | |
| CN213641423U (en) | Knee joint pulley pressure sensing type thighbone examination mould | |
| JP3604391B2 (en) | Urinary incontinence treatment device | |
| US10595752B2 (en) | Diagnostic probe for measuring the deformation of an internal cavity | |
| CN211187200U (en) | Artificial knee joint replacement pressure measuring device | |
| CN211187302U (en) | Gap-adjustable knee joint pressure measuring device for total knee joint replacement | |
| CN109009320A (en) | Knee osteotomy angle measurement unit | |
| CN215584483U (en) | Adjustable knee joint pressure measuring device for total knee joint replacement | |
| CN214761635U (en) | Hip joint replacement acetabulum position change measuring device | |
| CN215228854U (en) | Pressure measuring device and system for patella replacement | |
| KR20090042553A (en) | Thigh muscles of contract pressure and electromyography gauge senser | |
| CN114452053A (en) | Gap-adjustable knee joint pressure measuring device for total knee joint replacement | |
| CN210990216U (en) | Knee joint stress inductor | |
| CN221750821U (en) | A knee joint pressure measurement appearance for knee joint replacement art | |
| CN220459456U (en) | Novel knee joint pressure measuring instrument for knee joint replacement | |
| CN113633443A (en) | Knee joint operation auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210709 |