CN217793056U - Support structure and knee joint axial displacement measuring instrument - Google Patents
Support structure and knee joint axial displacement measuring instrument Download PDFInfo
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- CN217793056U CN217793056U CN202221497346.3U CN202221497346U CN217793056U CN 217793056 U CN217793056 U CN 217793056U CN 202221497346 U CN202221497346 U CN 202221497346U CN 217793056 U CN217793056 U CN 217793056U
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Abstract
The application relates to a supporting structure and knee joint axial displacement measuring apparatu, it is including the support body that is used for installing the measuring part, is equipped with on the support body to be used for installing fixed mounting with the shin bone, still be equipped with on the support body and be used for the setting element with the patella location, the setting element is kept away from the one end of patella and is set up towards the direction skew slope of keeping away from the shin bone. This application has the effect that improves the accuracy that patient's knee joint ligament detected.
Description
Technical Field
The application relates to the field of medical detection instruments, in particular to a support structure and a knee joint axial displacement measuring instrument.
Background
Knee ligament injury is one of the most common and serious sports injuries, and ligament tears cause instability of the knee joint. The drawer test or the axial displacement test is a common method for checking whether the anterior cruciate ligament or the posterior cruciate ligament of the knee joint is damaged. In addition, knee joint ligament reconstruction surgery is a common surgery for treating unstable knee joints caused by ligament tear, and after the surgery, in the rehabilitation process, the ligament treatment condition can be detected and evaluated in a staged manner, and usually, a drawer or an axial displacement test is also required for judgment.
The drawer test specifically comprises the following steps: because the lower end of the anterior cruciate ligament is attached to the front of the intercondylar eminence of the tibia, obliquely and externally upwards, attached to the inner surface of the lateral condyle of the femur, and tensed when stretching the knee, and can prevent the tibia from moving forwards, when a drawer test is performed, the patient lies on the back, holds the upper end of the tibia of the knee with both hands, and applies pressure forwards, if the tibia can move forwards, the fracture of the anterior cruciate ligament is prompted, the lower end of the posterior cruciate ligament is attached to the back of the intercondylar eminence of the tibia, obliquely and internally upwards, attached to the outer surface of the medial condyle of the femur, and tense when bending the knee, and can prevent the tibia from moving backwards, when the patient bends the knee drawer test in the supine position, the examiner also holds the upper end of the tibia, not forwards, but backwards. If the tibia can move posteriorly, it is an indication that the posterior cruciate ligament is broken.
The drawer test is an inspection method for evaluating the damage condition of the anterior cruciate ligament and the posterior cruciate ligament by judging the tibial displacement according to the experience and the hand feeling of an inspector, and has the problems that the judgment of the displacement is not accurate, the damage condition is further caused, and the judgment of the displacement is not accurate, and the damage result evaluation is not accurate.
Therefore, the knee joint measuring device who has provided one kind to be applied to drawer test now includes the mounting bracket and installs the measuring apparatu on the mounting bracket, and knee joint measuring device is fixed in between surveyed shin bone and the thighbone through the mounting bracket, and the measuring end of measuring apparatu supports on the shin bone, then carries out the drawer experiment, and the measuring end of measuring apparatu can acquire the shin bone for the displacement volume of thighbone, and the person of examining can damage the aassessment through audio-visual measuring result. However, in the drawer experiment, the detected leg needs to be subjected to force application, knee bending and other detection operations in the experiment process, and the knee joint measuring device is low in positioning stability, so that the measuring end of the measuring instrument is prone to deviation, and the detection accuracy is affected.
SUMMERY OF THE UTILITY MODEL
In order to improve the accuracy that patient's knee joint ligament detected, this application provides a supporting structure and knee joint axle moves measuring apparatu.
The application provides a supporting structure adopts following technical scheme: the utility model provides a support structure, is equipped with on the support body and is used for installing fixed mounting with the shin bone including the support body that is used for installing the measuring part, still be equipped with on the support body and be used for the setting element with the patella location, the setting element is kept away from the one end of patella and is set up towards the direction skew slope of keeping away from the shin bone.
By adopting the technical scheme, when the support structure is applied to a drawer test, the fixing piece of the support structure is fixed on the tibia, and the positioning piece is positioned on the patella. And the patella is located the preceding of shin bone upper end and thighbone lower extreme, and the patella can slide in the joint smoothly when knee joint bending extension, and then the setting element of support body can be along with the crooked extension trend of patella movement track in order to adapt to the knee joint for it is stable to keep balance relatively between the setting element of being located the patella and the mounting that is fixed in on the shin bone, in order to improve the positional stability of support body and the shank of being surveyed of knee bending in-process, and then improves the measurement stability of installing the measuring part on the support body. When the drawer is experimental simultaneously, install the measuring terminal of the measuring part on the support body and contradict and carry out the measuring in shin bone tuberosity position, and the one end that the kneecap was kept away from to the setting element on the support body is towards the direction skew slope setting of keeping away from the shin bone, then based on supporting structure, be the contained angle overall arrangement between the location axis of the measurement axis of measuring part and setting element in the measurement process, triangle-shaped distribution structure positional stability is high, the measurement terminal of the measuring part of being convenient for is to the location accuracy of shin bone tuberosity position, reduce and measure skew phenomenon, improve measuring accuracy.
Preferably, the setting element includes first connecting portion and first laminating portion, the one end and the this body coupling of support of first connecting portion, the other end and the first laminating portion of first connecting portion are connected, first laminating portion circular arc sets up, first laminating portion and knee patella part phase adaptation, the one end of patella is kept away from to first connecting portion is towards the direction skew slope setting of keeping away from the shin bone.
Through adopting above-mentioned technical scheme, the first laminating portion that the circular arc set up improves the area of contact of location laminating at knee patella position to further improve the stability of setting element in the drawer test process, and then further improve measuring accuracy.
Preferably, the lower end of the first connecting part is connected to one side of the first attaching part close to the measuring part.
Through adopting above-mentioned technical scheme, the lower extreme of first connecting portion is fixed in one side that first laminating portion is close to the measuring part to the convenience is carrying out the drawer test in-process, and the palm is pressed at the upper surface of first laminating portion, thereby further improves the stability of support body, thereby further improves the accuracy that detects.
Preferably, the fixing member is a fastening band.
Through adopting above-mentioned technical scheme, the fastening area of connecting on the support body is convenient for the support body installation to tie up tightly and fix in shank shin bone department.
Preferably, the support body still is provided with the connecting piece that leans on in shin bone department, the connecting piece includes second connecting portion and second laminating portion, the one end and the this body coupling of support of second connecting portion, the other end and the second laminating portion of second connecting portion are connected, second laminating portion circular arc sets up, the laminating of second laminating portion is in shank shin bone department, the fastening area is connected with second laminating portion.
Through adopting above-mentioned technical scheme, the second laminating portion that the circular arc set up improves the area of contact of location laminating in shank shin bone department to improve the stability of fastening band installation fixing in shank shin bone department, and then improve the stability of bearing structure in the drawer test process, and then further improve the accuracy that detects.
Preferably, hook parts are arranged at two ends of the second attaching part, and a plurality of hanging holes used for hanging the hook parts are formed in the fastening belt at intervals along the length direction.
Through adopting above-mentioned technical scheme, according to patient's shank size selection hanging on the fastening band establish the hole hang establish on the hook portion on second laminating portion, the dismouting of the fastening band of being convenient for and the elasticity of adjusting the fastening band and fixing on the shank.
Preferably, the support body is provided with an adjusting mounting seat for driving the measuring part to adjust the position along the length direction.
Through adopting above-mentioned technical scheme, the measuring part adjusts the different condition of different patient leg length through adjusting the position of mount pad on the support body.
Preferably, the adjusting and mounting seat comprises a mounting block and an adjusting knob, the support body is provided with an adjusting hole along the length direction, and a screw rod section of the adjusting knob penetrates through the adjusting hole to be in threaded connection with the mounting block.
Through adopting above-mentioned technical scheme, through threaded connection at the adjust knob of installation piece, conveniently adjust the mount pad unblock or fix on the support body to be convenient for adjust the regulation that the mount pad drove the measuring piece.
On the other hand, the application also provides a knee joint axial displacement measuring instrument, which adopts the following technical scheme:
a knee joint axial displacement measuring instrument comprises a measuring piece and the bracket structure, wherein the measuring piece is installed on a bracket body, and the measuring end of the measuring piece is used for being in contact with the tuberosity position of a tibia of a calf.
By adopting the technical scheme, when the drawer is tested, the fixing piece of the support structure is fixed on the tibia, and the positioning piece is positioned on the patella. And the patella is located the preceding of shin bone upper end and thighbone lower extreme, and the patella can slide in the joint smoothly when knee joint bending extension, and then the setting element of support body can be along with the crooked extension trend of patella movement track in order to adapt to the knee joint for it is stable to keep balance relatively between the setting element of being located the patella and the mounting that is fixed in on the shin bone, in order to improve the positional stability of support body and the shank of being surveyed of knee bending in-process, and then improves the measurement stability of installing the measuring part on the support body. Install the measuring terminal of the measuring part on the support body simultaneously and contradict and carry out the measuring in shin bone tuberosity position, and the one end that the patella was kept away from to the setting element on the support body is towards the direction skew slope setting of keeping away from the shin bone, be the contained angle overall arrangement between the location axis of the measuring axis of measuring part and setting element in the measurement process, triangle-shaped distribution structure positioning stability is high, the measuring terminal pair of the measuring part of being convenient for is to the location accuracy of shin bone tuberosity position, reduce and measure the skew phenomenon, improve measuring accuracy.
Preferably, installation piece one side is provided with the right angle breach, the casing of measuring part outwards extends has perpendicular locating piece, fixed connection can be dismantled in right angle breach department to perpendicular locating piece.
Through adopting above-mentioned technical scheme, through the vertical position calibration location of the perpendicular locating piece of right angle breach assistance on the installation piece to reduce the straightness's of measurement skew that hangs down.
To sum up, during the drawer test, the support body is tied up through the fastening area and is fixed in shank shin bone department, and the first laminating portion location of setting element is laminated on the patella. And the patella is located the preceding of shin bone upper end and thighbone lower extreme, and the patella can slide in the joint smoothly when knee joint bending is extended, and the setting element can be along with the curved extension trend of patella movement track in order to adapt to the knee joint for it is stable to keep balance relatively between the setting element of patella and the fastening area of being fixed in on the shin bone to be located, with the improvement bend in-process support body with by the positional stability of survey shank, and then improves the measurement stability who installs the measuring part on the support body. Install the measuring terminal of the measuring part on the support body simultaneously and contradict and carry out the measurement in shin bone tuberosity position, and the one end that the kneecap was kept away from to the setting element on the support body is towards the direction skew slope setting of keeping away from the shin bone, be the contained angle overall arrangement between the location axis of the measuring axis of measuring part and setting element in the measurement process, triangle-shaped distribution structure positioning stability is high, the measuring terminal pair of the measuring part of being convenient for is to the location accuracy of shin bone tuberosity position, reduce and measure the skew phenomenon, improve measuring accuracy.
Drawings
Fig. 1 is a schematic view of a stent structure in an embodiment of the present application.
Fig. 2 is a schematic view of the structure of the measuring instrument installed on the measuring leg in the embodiment of the application.
Fig. 3 is a schematic view of the overall structure of the measuring instrument in the embodiment of the present application.
Fig. 4 is a schematic overall structure diagram of another view angle of the measuring instrument in the embodiment of the present application.
FIG. 5 is a schematic view of a mounting structure of a measuring instrument during a drawer test according to an embodiment of the present application.
Description of reference numerals: 1. a stent body; 11. an adjustment hole; 2. a positioning member; 21. a first connection portion; 22. a first bonding portion; 3. a connecting member; 31. a second connecting portion; 32. a second bonding portion; 321. a hook portion; 33. a fastening tape; 331. hanging holes; 4. a measuring member; 41. a measuring head; 42. a vertical positioning block; 5. adjusting the mounting seat; 51. mounting blocks; 511. a right-angle notch; 52. and adjusting a knob.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a support structure. Referring to fig. 1 and 2, the bracket structure includes a bracket body 1 in an elongated arrangement, and the bracket body 1 is used for mounting a measuring part 4. One end of the bracket body 1 is provided with a positioning part 2 used for positioning the patella, the other end of the bracket body 1 is provided with a connecting part 3 used for abutting against the tibia of the crus, and the connecting part 3 is provided with a fixing part used for being fixedly installed with the tibia. The positioning piece 2 and the connecting piece 3 are positioned on the same side of the bracket body 1.
One end of the positioning piece 2 far away from the patella is obliquely arranged in a deviation way towards the direction far away from the tibia. Specifically, the positioning element 2 includes a first connecting portion 21 and a first attaching portion 22, one end of the first connecting portion 21 is connected to the bracket body 1, and the other end of the first connecting portion 21 is connected to the first attaching portion 22. And the lower end of the first connecting portion 21 is connected to the side of the first attaching portion 22 close to the measuring member 4. In addition, one end of the first connecting portion 21, which is far away from the patella, is obliquely arranged in a manner of deviating towards the direction far away from the tibia, so that an acute angle is formed between the first connecting portion 21 and the bracket body 1. The first fitting part 22 is arranged in an arc shape, and the first fitting part 22 is adapted to be placed at the patella part. In the drawer is experimental, the palm is pressed at the upper surface of first laminating portion 22, install the measuring terminal of measuring part 4 on support body 1 and contradict and carry out the measurement in shin bone tuberosity position, and the one end that the patella was kept away from to setting element 2 on the support body 1 is towards the direction skew slope setting of keeping away from the shin bone, be the contained angle overall arrangement between the measuring axis of measuring part 4 and the location axis of setting element 2 in the measurement process, triangle-shaped distribution structure positioning stability is high, the measuring terminal pair of measuring part 4 of being convenient for is to the location accuracy of shin bone tuberosity position, reduce and measure skew phenomenon, improve measuring accuracy.
The connecting piece 3 comprises a second connecting part 31 and a second attaching part 32, one end of the second connecting part 31 is connected with the bracket body 1, the other end of the second connecting part 31 is connected with the second attaching part 32, the second attaching part 32 is arranged in a circular arc shape, and the second attaching part 32 is attached to the calf shank. Hook portions 321 are arranged at two ends of the second attaching portion 32, the fixing member is a fastening belt 33, and a plurality of hanging holes 331 used for hanging the hook portions 321 are formed in the fastening belt 33 at intervals along the length direction. The bracket body 1 is fastened and fixed at the shin of the lower leg through the fastening belt 33 hung on the second attaching part 32, and the hanging hole 331 on the fastening belt 33 is hung on the hook part 321 on the second attaching part 32 according to the size of the lower leg of the patient, so that the fastening belt 33 can be conveniently assembled and disassembled and the tightness of the fastening belt 33 fixed on the lower leg can be conveniently adjusted.
In order to adapt to the leg length of different patients, the bracket body 1 is provided with an adjusting mounting seat 5 for driving the measuring part 4 to adjust the position along the length direction. The adjusting mounting base 5 comprises a mounting block 51 and an adjusting knob 52, the support body 1 extends along the length direction and is provided with an adjusting hole 11, and a screw rod section of the adjusting knob 52 penetrates through the adjusting hole 11 and is in threaded connection with the mounting block 51. Through threaded connection at the adjust knob 52 of installation piece 51, conveniently adjust the unblock of mount pad 5 or fix on support body 1 to be convenient for adjust the regulation that mount pad 5 drove measuring piece 4. In other embodiments, the adjusting hole 11 may be provided in plurality at intervals along the length direction of the stent body 1.
The implementation principle of the support structure in the embodiment of the application is as follows: during the drawer test, the second attaching portion 32 is abutted against the calf shank and is fastened and fixed at the calf shank through the fastening belt 33, and the first attaching portion 22 is positioned and attached to the patella. And the patella is located the preceding of shin bone upper end and thighbone lower extreme, and the patella can slide in the joint smoothly when the knee joint is crooked to straighten, and setting element 2 can be along with the curved trend of straightening of patella motion orbit in order to adapt to the knee joint for it is stable to keep balance relatively between the setting element 2 of locating at the patella and the fastening belt 33 that is fixed in on the shin bone, in order to improve the positional stability of support body 1 with the shank of being surveyed of knee bending in-process, and then improve the measurement stability of installing measuring part 4 on support body 1. Install simultaneously the measuring terminal of measuring part 4 on support body 1 and contradict and carry out the measurement in shin bone tuberosity position, and the one end that setting element 2 kept away from the patella is towards the direction skew slope setting of keeping away from the shin bone, be the contained angle overall arrangement between the measuring axis of measuring part 4 and the location axis of setting element 2 in the measurement process, triangle-shaped distribution structure positional stability is high, the measuring terminal of measuring part 4 of being convenient for is to the location accuracy of shin bone tuberosity position, reduce and measure the skew phenomenon, improve measuring accuracy.
The application also discloses a knee joint axial displacement measuring instrument, and referring to fig. 2, the knee joint axial displacement measuring instrument comprises the support structure and the measuring piece 4. While the measuring member 4 in this embodiment is a dial gauge, in other embodiments a dial gauge or other measuring instrument for measuring the location of the calf shank tuberosity can be used. And the digital display ruler is adopted as the ruler in the embodiment.
Referring to fig. 3 and 4, the measuring part 4 is installed on the adjusting installation seat 5 of the support body 1, specifically, one side of the installation block 51 of the adjusting installation seat 5 is provided with a right-angle notch 511, the casing of the percentile ruler extends outwards to form a vertical positioning block 42, the vertical positioning block 42 is detachably and fixedly connected to the right-angle notch 511, and when the vertical positioning block 42 is fixed, the vertical positioning block 42 is used for assisting vertical positioning through the right-angle notch 511, so that the verticality of installation of the measuring part 4 and the support body 1 is ensured. The vertical positioning block 42 in this embodiment is fixed to the mounting block 51 by screws. The measuring scale of the percentile scale extends through the adjustment hole 11 for abutment with the tibial tuberosity location.
The measuring end of the measuring member 4 is fixedly provided with a measuring head 41, and the cross-sectional area of the measuring head 41 is larger than the cross-sectional area of the measuring end. The measurement head 41 increases the contact area with the knee detection portion, thereby reducing the measurement error.
The method for using the knee joint axial displacement measuring instrument in the drawer test is combined with the attached figure 5.
1. The knee joint axis displacement measuring instrument is prepared, and the fastening band 33 is opened.
2. A pillow was placed under the patient's thigh to achieve 25 ° flexion to ensure that the patient's muscles were relaxed.
3. The first attaching part 22 of the positioning part 2 of the measuring instrument is aligned and placed on the middle part of the patella, the second attaching part 32 of the connecting part 3 of the measuring instrument is placed on the sick calf, and the fastening belt 33 is wound and fixed on the tibia. And loosening the adjusting knob, sliding the digital display dial indicator to enable the measuring head 41 of the digital display dial indicator to abut against the center of the tibial tuberosity, and screwing the adjusting knob.
4. The measuring head 41 contacts the tibial tuberosity and the ZERO key is pressed, and the reading is reset to ZERO.
5. After the drawer test operation is carried out, the digital display ruler displays the displacement value, and damage assessment can be carried out according to the displacement value.
Meanwhile, the knee joint axial displacement measuring instrument can also be applied to lateral stress tests, axial displacement tests, patient autonomous tests, raman tests and the like.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a supporting structure, is equipped with on support body (1) including support body (1) that is used for installing measuring part (4) and is used for installing fixed mounting, its characterized in that with the shin bone: the support is characterized in that a positioning piece (2) used for being positioned with a patella is further arranged on the support body (1), and one end, far away from the patella, of the positioning piece (2) is obliquely arranged in a direction of being far away from the tibia in a deviation mode.
2. A support structure according to claim 1, wherein: the locating element (2) includes first connecting portion (21) and first laminating portion (22), the one end and the support body (1) of first connecting portion (21) are connected, the other end and the first laminating portion (22) of first connecting portion (21) are connected, first laminating portion (22) circular arc setting, first laminating portion (22) and knee patellar part phase adaptation, the one end of patella is kept away from in first connecting portion (21) towards the direction skew slope setting of keeping away from the tibia.
3. A support structure according to claim 2, wherein: the lower end of the first connecting part (21) is connected to one side, close to the measuring piece (4), of the first attaching part (22).
4. A support structure according to claim 1, wherein: the fixing part is a fastening belt (33).
5. A support structure according to claim 4, wherein: the bracket body (1) is further provided with a connecting piece (3) abutted to the tibia, the connecting piece (3) comprises a second connecting portion (31) and a second attaching portion (32), one end of the second connecting portion (31) is connected with the bracket body (1), the other end of the second connecting portion (31) is connected with the second attaching portion (32), the second attaching portion (32) is arranged in a circular arc mode, the second attaching portion (32) is attached to the tibia of the lower leg, and a fastening belt (33) is connected with the second attaching portion (32).
6. A support structure according to claim 5, wherein: hook portions (321) are arranged at two ends of the second attaching portion (32), and a plurality of hanging holes (331) used for hanging the hook portions (321) are formed in the fastening belt (33) at intervals along the length direction.
7. A support structure according to claim 1, wherein: the support body (1) is provided with an adjusting mounting seat (5) for driving the measuring piece (4) to adjust the position along the length direction.
8. A support structure according to claim 7, wherein: adjust mount pad (5) including installation piece (51) and adjust knob (52), regulation hole (11) have been seted up along length direction in support body (1), the screw rod section of adjust knob (52) passes regulation hole (11) and installation piece (51) threaded connection.
9. A knee joint axial displacement measuring instrument is characterized in that: comprising a measuring member (4) and a mounting structure according to any one of claims 1 to 6, the measuring member (4) being mounted on the mounting body (1), the measuring end of the measuring member (4) being adapted to contact the calf shank tuberosity location.
10. The knee joint axis displacement measuring instrument of claim 9, wherein: be provided with on support body (1) and be used for driving regulation mount pad (5) that measuring part (4) followed length direction adjusting position, adjust mount pad (5) including installation piece (51) and adjust knob (52), regulation hole (11) have been seted up along length direction in support body (1), the screw rod section of adjust knob (52) passes regulation hole (11) and installation piece (51) threaded connection, installation piece (51) one side is provided with right angle breach (511), the casing of measuring part (4) outwards extends has vertical locating piece (42), fixed connection can be dismantled in right angle breach (511) department in vertical locating piece (42).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221497346.3U CN217793056U (en) | 2022-06-15 | 2022-06-15 | Support structure and knee joint axial displacement measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221497346.3U CN217793056U (en) | 2022-06-15 | 2022-06-15 | Support structure and knee joint axial displacement measuring instrument |
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| CN217793056U true CN217793056U (en) | 2022-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117158976A (en) * | 2023-11-03 | 2023-12-05 | 北京大学第三医院（北京大学第三临床医学院） | Novel forward looseness measuring instrument for knee joint |
-
2022
- 2022-06-15 CN CN202221497346.3U patent/CN217793056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117158976A (en) * | 2023-11-03 | 2023-12-05 | 北京大学第三医院（北京大学第三临床医学院） | Novel forward looseness measuring instrument for knee joint |
| CN117158976B (en) * | 2023-11-03 | 2024-01-30 | 北京大学第三医院（北京大学第三临床医学院） | Novel forward looseness measuring instrument for knee joint |
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Address after: 102600 A018, floor 1, building 1, No. 25, Jinghai Second Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing Tianxing Medical Co.,Ltd. Address before: 102600 A018, floor 1, building 1, No. 25, Jinghai Second Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING TIANXING BOMAIDI MEDICAL EQUIPMENT Co.,Ltd. |