CN209107314U - Knee joint tester - Google Patents
Knee joint tester Download PDFInfo
- Publication number
- CN209107314U CN209107314U CN201821485041.4U CN201821485041U CN209107314U CN 209107314 U CN209107314 U CN 209107314U CN 201821485041 U CN201821485041 U CN 201821485041U CN 209107314 U CN209107314 U CN 209107314U
- Authority
- CN
- China
- Prior art keywords
- knee joint
- swivel mount
- knee
- rack
- joint tester
- 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.)
- Active
Links
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to a kind of knee joint testers, including rack, swivel mount and angular transducer, the rack is connected with knee locating piece, one end of the swivel mount is rotatably connected with the rack, the other end of the swivel mount is equipped with abutting portion towards the side close to the knee locating piece, the swivel mount is equipped with mounting plate close to the side of the abutting portion, and the swivel mount is equipped with handle portion, and the angular transducer is used to measure the angle between the swivel mount and the rack.Above-mentioned knee joint tester is the distance value that shin bone Forward is obtained using angular transducer and geometric knowledge, can objectively and accurately test knee joint stability.
Description
Technical field
The utility model relates to medical inspection device technical fields, more particularly to a kind of knee joint tester.
Background technique
Anterior cruciate ligament, also known as anterior cruciate ligament are located in knee joint, connect femur and shin bone, and main function is limitation
Shin bone excessively shifts forward.It is complete to make one physical efficiency to maintain kneed stability with other structures collective effect in knee joint for it
At various complicated and highly difficult lower limb movements.Anterior cruciate ligament is the important forward direction rock-steady structure of knee joint, can be tight after damage
Ghost image rings knee joint function, if be not treated in time, spraining repeatedly occurs in joint, easily causes the weight such as articular cartilage, meniscus
The damage for wanting structure leads to the generation of joint premature aging and osteoarthropathy.But clinically examining for cross ligament damage
It is disconnected usually to be closed using Lachman drawer test (La Heman drawer test), the inspection of knee joint x-ray, Magnetic resonance imaging or knee
Save mirror hand inspection.Most common of them, it is most convenient that Lachman drawer test.
Lachman drawer test: patient lies down on bed, and about 30 degree of knee buckling, biped is flat on bed, keeps loosening.Inspection
The person of looking into is seated on bed, resists patient's biped and is allowed to fixed, and both hands hold kneed ligament tibia end, draws shank forwards, estimates shin
The distance of sacrolisthesis shows cross ligament damage apart from excessive.However, the test relies on the micro-judgment of doctor substantially,
There is apparent subjectivity, same patient is tested by different doctors may obtain different conclusions, and there is test inaccuracy
Problem.
Summary of the invention
Based on this, it is necessary to for the problem of test inaccuracy, provide a kind of knee joint tester, it can be objective and accurate
Knee joint stability is tested on ground.
A kind of knee joint tester, including rack, swivel mount and angular transducer, the rack are connected with knee positioning
Part, one end of the swivel mount are rotatably connected with the rack, and the other end of the swivel mount is positioned towards close to the knee
The side of part is equipped with abutting portion, and the swivel mount is equipped with mounting plate close to the side of the abutting portion, and the swivel mount is equipped with and mentions
Hand, the angular transducer are used to measure the angle between the swivel mount and the rack.
For above-mentioned knee joint tester in use, knee locating piece is fixed on the knee of human body, abutting portion contradicts human body
Ligament tibia end, mounting plate are fixed on the shank of human body, and user exerts oneself pull-up handle portion, then swivel mount and rack occur to turn
Dynamic, swivel mount drives abutting portion, ligament tibia end mobile, and angular transducer measures the rotation angle of swivel mount, according to geometric knowledge, root
According to the rotation angle, the distance value of shin bone Forward can be calculated.Therefore, above-mentioned knee joint tester is to utilize angular transducer
The distance value of shin bone Forward is obtained with geometric knowledge, can objectively and accurately test knee joint stability.
The knee locating piece includes being connected to the connecting rod of the rack and positioned at the company in one of the embodiments,
The knee tabletting of bar lower end.
Above-mentioned knee joint tester further includes screw element in one of the embodiments, the rack be equipped with mounting hole and
The threaded hole being connected to the side of the mounting hole, the connecting rod are slidably disposed in the mounting hole, the knee joint
Tester further includes the screw element closed with the corresponding threaded holes, and the screw element may pass through the threaded hole to fasten the company
Bar.
The connecting rod upwardly extends far from one end of the knee tabletting and is equipped with a ball in one of the embodiments,
Body.
The handle portion is located at side of the swivel mount far from the abutting portion in one of the embodiments,.
Above-mentioned knee joint tester further includes controller in one of the embodiments, and the handle portion is equipped with zeroing and presses
Button, the controller are electrically connected with the angular transducer, the zero-setting button respectively.
The swivel mount is additionally provided with display, the display and controller electricity in one of the embodiments,
Property connection.
The handle portion is equipped with force snesor in one of the embodiments, and the force snesor is for detecting described mention
The pulling force that hand is subject to, the force snesor and the controller are electrically connected.
The controller is equipped with data storage cell and communication interface, the communication interface in one of the embodiments,
It is electrically connected with the data storage cell, the data that the data storage cell stores for being transmitted to by the communication interface
It is external.
The bottom of the mounting plate is equipped with arc plate in one of the embodiments, and the both ends of the arc plate are connected with removable
The elastic band unloaded.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of knee joint tester described in an embodiment of the present invention；
Fig. 2 is another visual angle figure of Fig. 1；
Fig. 3 is to remove the structural schematic diagram after shell in Fig. 1.
100, rack, 110, knee locating piece, 111, connecting rod, 112, knee tabletting, 113, sphere, 114, screw element,
200, swivel mount, 210, abutting portion, 220, handle portion, 221, zero-setting button, 230, mounting plate, 231, arc plate, 300, angle biography
Sensor, 400, controller, 410, display, 420, power supply, 500, shell.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.
A kind of knee joint tester combined with Figure 1 and Figure 2, including rack 100, swivel mount 200 and angular transducer 300 (see
Fig. 3).Rack 100 is connected with knee locating piece 110, and one end and the rack 100 of swivel mount 200 are rotatably connected, swivel mount 200
The other end be equipped with abutting portion 210 towards the side close to knee locating piece 110, swivel mount 200 sets close to the side of abutting portion 210
There is mounting plate 230.Specifically, the bottom of mounting plate 230 is equipped with arc plate 231.Arc plate 231 is convenient for fitting with the shank of human body,
It is more easily bound with shank, also improves the comfort level of tester.The inside of arc plate 231 is sticked flexible gasket.The two of arc plate 231
End is connected with dismountable elastic band, adjusting elasticity band when test, to improve the stability of connection.Wherein, arc plate 231 can be
One, it is two or more.Swivel mount 200 is equipped with handle portion 220, and angular transducer 300 is for measuring swivel mount 200 and rack
Angle between 100.
In use, knee locating piece 110 is fixed on the knee of human body, abutting portion 210 contradicts above-mentioned knee joint tester
The ligament tibia end of human body, mounting plate 230 are fixed on the shank of human body, and user exerts oneself pull-up handle portion 220, then swivel mount
200 rotate with rack 100, and swivel mount 200 drives abutting portion 210, ligament tibia end mobile, and angular transducer 300 measures rotation
The rotation angle of frame 200 can calculate the distance value of shin bone Forward according to the rotation angle according to geometric knowledge.Therefore,
Above-mentioned knee joint tester is the distance value that shin bone Forward is obtained using angular transducer 300 and geometric knowledge, being capable of objective standard
Knee joint stability really is tested, as a result accuracy and repeatability with higher.
Fig. 1 is combined in one of the embodiments, and knee locating piece 110 includes 111 He of connecting rod for being connected to rack 100
Knee tabletting 112 positioned at 111 lower end of connecting rod.Specifically, knee tabletting 112 is circular piece, is preferably fitted with knee.Knee
Lid tabletting 112 facilitates pressing on knee, so that rack 100 keeps opposing stationary with knee.
Wherein, in conjunction with Fig. 1, above-mentioned knee joint tester further includes screw element 114.Rack 100 be equipped with mounting hole and with peace
The threaded hole of the side connection in hole is filled, connecting rod 111 is slidably disposed in mounting hole, and knee joint tester further includes and screw thread
The screw element 114 that hole matches, screw element 114 may pass through threaded hole to fasten connecting rod 111.According to the different body of each tester
Type, adjustable connecting rod 111 change the position of knee tabletting 112, are allowed to be easier to be fixed on knee, and versatility is good, are applicable in
In the patient of all ages and classes.
Fig. 1 is combined in one of the embodiments, and connecting rod 111 is upwardly extended and is equipped with far from one end of knee tabletting 112
One sphere 113.The structure of sphere 113 designs, and holds the sphere 113 convenient for medical staff's hand, and apply to knee tabletting 112 and press
Power.
Fig. 1 to Fig. 3 is combined in one of the embodiments, and handle portion 220 is located at swivel mount 200 far from abutting portion 210
Side.On swivel mount 200, abutting portion 210 contradicts ligament tibia end, and handle portion 220 is located at the other side of swivel mount 200, favorably
It operates and exerts a force in medical staff.Specifically, abutting portion 210 is that the end bending of swivel mount 200 is formed.Abutting portion 210 and people
The position of body contact has a plane, avoids tenderness ligament tibia end.
Fig. 1 and Fig. 3 is combined in one of the embodiments, and above-mentioned knee joint tester further includes controller 400.Handle
Portion 220 is equipped with zero-setting button 221.Controller 400 is electrically connected with angular transducer 300, zero-setting button 221 respectively.Zeroing is pressed
Button 221 is reset, then angular transducer 300 measures the angle of rotation angle value that obtained angle value is swivel mount 200, utilizes the rotation
The moving distance value of abutting portion 210, that is, the moving distance value of ligament tibia end can be directly calculated in angle value.
Fig. 1 and Fig. 3 is combined in one of the embodiments, and swivel mount 200 is additionally provided with display 410, display 410
It is electrically connected with controller 400.The moving distance value of the ligament tibia end measured is sent to display 410 by controller 400, is convenient for phase
Pass personnel can intuitively know test result by display 410.Specifically, display 410 is touch screen, can facilitate phase
Pass personnel's direct control operation, and comparison left and right sides knee joint stability.The knee joint tester is also equipped with power supply 420.
Power supply 420 is that display screen and controller 400 provide electric energy.
Fig. 1 and Fig. 3 is combined in one of the embodiments, and handle portion 220 is equipped with force snesor, and force snesor is for examining
The pulling force that handle portion 220 is subject to is surveyed, force snesor and controller 400 are electrically connected.In this way, controller 400 can know handle
The moving distance data of pulling force data and ligament tibia end that portion 220 applies.It is appreciated that handle portion 220 is specially handle.
Fig. 1 and Fig. 3 is combined in one of the embodiments, controller 400 is equipped with data storage cell and communication interface,
Communication interface and data storage cell are electrically connected, and communication interface is used to for the data that data storage cell stores being transmitted to outer
Portion.Communication interface can be one of wireless communication interface, USB interface, Com interface or I2C interface or a variety of.Data storage
The data of unit storage can be by communications interface transmission to server or USB flash disk, so that subsequent data are analyzed and are handled.
It is appreciated that combining Fig. 1, which further includes shell 500.Shell 500 is used to protect internal electricity
Gas component, such as controller 400, display 410, power supply 420 and angular transducer 300.Wherein, shell 500 is in display 410
It is respectively arranged with opening with the position in handle portion 220, is exposed convenient for handle portion 220, display 410.
Simply introduce the application method of knee joint tester in the utility model again below: firstly, mounting plate 230 is bundled in
On shank, it can specifically pass through arc plate 231 and the fixed shank of elastic band.Secondly, knee locating piece 110 is fixed on knee, and press
Dynamic zero-setting button 221.Then, medical staff presses sphere 113 on the other hand, so that rack 100 is stationary, the other hand pulls handle
Portion 220, so that swivel mount 200 rotates, angular transducer 300 measures the angle of rotation angle value, and abutting portion is calculated in controller 400
210 moving distance value.The moving distance value is shown on the display 410.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of knee joint tester, which is characterized in that including rack, swivel mount and angular transducer, the rack is connected with
Knee locating piece, one end of the swivel mount are rotatably connected with the rack, and the other end of the swivel mount is towards close to described
The side of knee locating piece is equipped with abutting portion, and the swivel mount is equipped with mounting plate, the rotation close to the side of the abutting portion
It is provided with handle portion, the angular transducer is used to measure the angle between the swivel mount and the rack.
2. knee joint tester according to claim 1, which is characterized in that the knee locating piece is described including being connected to
The connecting rod of rack and knee tabletting positioned at the connecting rod lower end.
3. knee joint tester according to claim 2, which is characterized in that further include screw element, the rack is equipped with peace
Dress hole and the threaded hole being connected to the side of the mounting hole, the connecting rod is slidably disposed in the mounting hole, described
Knee joint tester further includes the screw element closed with the corresponding threaded holes, and the screw element may pass through the threaded hole to fasten
The connecting rod.
4. knee joint tester according to claim 2, which is characterized in that the connecting rod far from the knee tabletting one
End upwardly extends and is equipped with a sphere.
5. knee joint tester according to claim 1, which is characterized in that it is separate that the handle portion is located at the swivel mount
The side of the abutting portion.
6. knee joint tester according to claim 1, which is characterized in that further include controller, the handle portion is equipped with
Zero-setting button, the controller are electrically connected with the angular transducer, the zero-setting button respectively.
7. knee joint tester according to claim 6, which is characterized in that the swivel mount is additionally provided with display, institute
It states display and the controller is electrically connected.
8. knee joint tester according to claim 6, which is characterized in that the handle portion is equipped with force snesor, described
Force snesor is electrically connected for detecting the pulling force that the handle portion is subject to, the force snesor and the controller.
9. knee joint tester according to claim 6, which is characterized in that the controller be equipped with data storage cell and
Communication interface, the communication interface and the data storage cell are electrically connected, and the communication interface is for depositing the data
The data of storage unit storage are transmitted to outside.
10. according to claim 1 to knee joint tester described in 9 any one, which is characterized in that the bottom of the mounting plate
Equipped with arc plate, the both ends of the arc plate are connected with dismountable elastic band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821485041.4U CN209107314U (en) | 2018-09-11 | 2018-09-11 | Knee joint tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821485041.4U CN209107314U (en) | 2018-09-11 | 2018-09-11 | Knee joint tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209107314U true CN209107314U (en) | 2019-07-16 |
Family
ID=67198327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821485041.4U Active CN209107314U (en) | 2018-09-11 | 2018-09-11 | Knee joint tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209107314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575143A (en) * | 2019-09-26 | 2019-12-17 | 北京大学第三医院（北京大学第三临床医学院） | Knee joint looseness measuring instrument |
-
2018
- 2018-09-11 CN CN201821485041.4U patent/CN209107314U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575143A (en) * | 2019-09-26 | 2019-12-17 | 北京大学第三医院（北京大学第三临床医学院） | Knee joint looseness measuring instrument |
| WO2021057445A1 (en) * | 2019-09-26 | 2021-04-01 | 北京大学第三医院（北京大学第三临床医学院） | Knee joint laxity measuring instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Peart et al. | Use of mobile applications to collect data in sport, health, and exercise science: A narrative review | |
| US20110213275A1 (en) | Device for determining the stability of a knee joint | |
| AU2009256441B2 (en) | Systems and methods for performing surface electromyography and range-of-motion tests | |
| US7661309B2 (en) | Angle and force measurement instrument | |
| CN100423689C (en) | A portable electrocardiosignal measuring device | |
| CN110432872A (en) | Ligamentous injury of knee joint assessment equipment and method | |
| JP5589480B2 (en) | Body fat measuring device | |
| CN209107314U (en) | Knee joint tester | |
| US20040260208A1 (en) | Knee laxity measurement | |
| WO2011097615A1 (en) | Shoulder torque and range of motion device | |
| CN107028616A (en) | Ankle-joint muscle strength test device | |
| CN110575143A (en) | Knee joint looseness measuring instrument | |
| CN210931366U (en) | Knee joint looseness measuring instrument | |
| CN208958123U (en) | A kind of portable ankle joint angle digital measuring apparatus | |
| CN212037526U (en) | Plantar pressure acquisition device used in foot load simulation CT | |
| CN112244881A (en) | Wearable lower limb joint rehabilitation measuring device | |
| JP7136585B2 (en) | Electronics | |
| CN213993565U (en) | Lower limb joint rehabilitation measuring device | |
| CN109394226A (en) | A kind of human body flexibility quality evaluates and tests training equipment and evaluating method | |
| KR20210015398A (en) | Tourniquet with Automatic blood pressure gauge | |
| CN204971288U (en) | Old man's body examination machine | |
| CN220572191U (en) | Orthopedic joint rehabilitation evaluation device | |
| CN211798628U (en) | Handheld rapid body anteflexion determinator | |
| CN215839128U (en) | Portable pressurizing bed board for joints of spine and lower limbs | |
| CN217987578U (en) | Human knee joint biomechanics characteristic testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |