CN111795926A - Tester for measuring tension and friction performance between medical anchor and suture - Google Patents
Tester for measuring tension and friction performance between medical anchor and suture Download PDFInfo
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- CN111795926A CN111795926A CN202010728533.7A CN202010728533A CN111795926A CN 111795926 A CN111795926 A CN 111795926A CN 202010728533 A CN202010728533 A CN 202010728533A CN 111795926 A CN111795926 A CN 111795926A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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Abstract
A tester for measuring tension and friction performance between medical anchors and sutures comprises a workbench, a base arranged on the workbench, a swing arm pivoted on one side of the base, and an anchor seat opposite to the swing arm, wherein the anchor seat is provided with an anchor fixing table, the swing arm is provided with an anchor fixing block, the tail of the anchor is fixed on the anchor fixing table in an upward mode, one end of the suture penetrates through the tail of the anchor, the other end of the suture is wound on the anchor fixing block, the base is also internally provided with a rotating motor for driving the swing arm to swing left and right, the rotating motor is connected with the swing arm, the suture fixing block is also provided with a deformation sensor, the tester can test critical tension values between anchors and sutures of different types and friction performance under different tension values, and therefore different anchors and sutures can be matched according to different clinical requirements, prevent the fracture of the anchor and the suture in clinical application caused by the inconsistent critical force value or the friction performance and the failure of the operation.
Description
Technical Field
The invention relates to a measuring device, in particular to a tester for measuring the tension and the friction performance between a medical anchor and a suture.
Background
The matching use of the anchor nail and the suture is a very common repairing tool for elbow joint ligament avulsion, patella key insertion point avulsion, lateral accessory ligament insertion point avulsion, achilles tendon insertion point avulsion and other ligament insertion point avulsion in the department of traumatology at present.
When in use, the anchor is screwed into the corresponding bone, one end of the suture is penetrated into the tail part of the anchor, and the other end of the suture is sutured with the soft tissue of the spinous process and tied and tightened.
However, the types of the existing anchors and sutures on the market are different, and the materials are also different, so that the possibility that the anchors and the sutures are broken due to long-term compression friction fatigue state or in an operation in the process of matching use of some anchors and sutures is caused, and the repair failure is caused. Therefore, a tester capable of testing the common tension and friction performance between various anchors and sutures is urgently needed to ensure that the performance of the tester meets the clinical treatment and use requirements.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a tester for measuring the tension and the friction performance between a medical anchor and a suture.
The technical scheme for solving the technical problem is as follows: a tester for measuring tension and friction performance between a medical anchor and a suture comprises a workbench, a base arranged on the workbench, a swing arm pivoted on one side of the base, and an anchor seat opposite to the swing arm, wherein the anchor seat is provided with an anchor fixing table, the swing arm is provided with a suture fixing block, the tail of the anchor is upwards fixed on the anchor fixing table, one end of the suture penetrates through the tail of the anchor, the other end of the suture is wound on the suture fixing block, the base is internally provided with a rotating motor for driving the swing arm to swing left and right, the rotating motor is connected with the swing arm, and the suture fixing block is also provided with a deformation inductor;
the tester also comprises a lifting mechanism for adjusting the height of the suture fixing block, a first position adjusting mechanism for adjusting the upper position and the lower position of the anchor fixing table, a second adjusting mechanism for adjusting the left position and the right position of the anchor fixing table, and a limiting mechanism for preventing the swing arm from excessively rotating.
Preferably, the lifting mechanism comprises a lifting motor arranged in the base, a lead screw connected with the lifting motor, and a linkage block arranged on the lead screw, and the linkage block is fixed with the suture fixing block.
Preferably, the first position adjusting mechanism comprises a first adjusting plate fixed on the workbench and a first adjusting rod in threaded connection with the first adjusting plate, and the other end of the first adjusting rod is connected with the anchor seat.
Preferably, the anchor seat is further provided with an adjusting groove matched with the first adjusting rod for adjustment.
Preferably, the second adjusting mechanism comprises a second adjusting plate fixed on the anchor seat and a second adjusting rod in threaded connection with the second adjusting plate, and the other end of the second adjusting rod is connected with the anchor fixing platform.
Preferably, the anchor seat is provided with a sliding chute, the anchor fixing platform is provided with a sliding opening matched with the sliding chute, and the sliding opening is positioned in the sliding chute and moves up and down along the sliding chute.
Preferably, the limiting mechanism comprises limiting blocks symmetrically arranged on the left side and the right side of the swing arm, and the limiting blocks extend outwards in an inclined manner to form a limiting surface.
Preferably, the limiting block is further provided with a limiting adjusting screw, the limiting adjusting screw is in threaded connection with the limiting block, and the limiting adjusting screw is vertically screwed in or screwed out of the limiting surface.
Preferably, the thread fixing block is further provided with a threading screw, the threading screw is fixed through two fastening nuts, and the threading screw is further provided with a winding opening convenient for winding the thread.
Preferably, a fixing groove is formed in the anchor fixing table, T-shaped blocks of different types are arranged in the fixing groove, and a fastening screw is further arranged on one side of the anchor fixing table.
The invention has the beneficial effects that: can test the critical tension value between the anchor of different models and the suture and be in the frictional behavior under the different tension value through this tester to different anchor and suture are matchd according to different clinical demands, prevent that inconsistent critical tension value or frictional behavior and make anchor and suture use and produce the fracture and lead to the operation failure in clinical time.
Drawings
Fig. 1 is an overall structural view of the present invention.
Fig. 2 is another perspective view of the overall construction of the present invention.
Fig. 3 is another perspective view of the overall construction of the present invention.
Fig. 4 is an enlarged view a of fig. 3 of the present invention.
Fig. 5 is an enlarged view B of fig. 3 of the present invention.
Fig. 6 is a half-sectional view of the anchor mounting table with an anchor according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 6, a tester for measuring the tension and friction between a medical anchor and a suture, comprising a workbench 1, a base 2 arranged on the workbench 1, a swing arm 3 pivoted on one side of the base 2, and an anchor holder 4 facing the swing arm 3, wherein the anchor holder 4 is provided with an anchor fixing table 5, the swing arm 3 is provided with a suture fixing block 6, when the tester is used, the tail of the anchor 7 is fixed on the anchor fixing table 5 upwards, one end of the suture 8 is inserted into the tail of the anchor 7, the other end of the suture 8 is wound on the suture fixing block 6, the base 2 is further provided with a rotating motor (not shown in the drawing because the rotating motor is arranged inside the base 2) for driving the swing arm 3 to swing left and right, the rotating motor is connected with the swing arm 3, thereby this rotation motor drives this swing arm 3 and sways and realize the relative anchor of suture and rotate when using, simulates the state of clinical operation or the anchor 7 and the suture 8 after the operation is accomplished through above-mentioned design. And can also control the swing arm 3 to rotate to different critical angles through this rotation motor, so also can produce different pulling forces and frictional force between anchor 7 and the suture 8 to under the circumstances of incessantly rocking, measure the frictional behavior between anchor 7 and the suture 8 when different pulling force values. The suture fixing block 6 is also provided with a deformation inductor 9. Produce deformation and reflect the different pulling forces that suture fixed block 6 received the suture through this deformation inductor 9, then turn into different pulling force values through outside data conversion module with the deformation value and carry outside host computer at last to can reflect the pulling force value that can bear when the anchor of different models and suture cooperate through this pulling force value, so that satisfy different clinical treatment demands.
And the tester also comprises a lifting mechanism 10 for adjusting the height of the suture fixing block 6, a first position adjusting mechanism 11 for adjusting the upper and lower positions of the anchor fixing table 5, a second adjusting mechanism 12 for adjusting the left and right positions of the anchor fixing table 5 and a limiting mechanism 13 for preventing the swing arm 3 from excessively rotating.
The specific structure of the lifting mechanism 10 includes a lifting motor (not shown in the drawings because the lifting motor is in the base 2) arranged in the base 2, a lead screw 14 connected with the lifting motor, and a linkage block 15 arranged on the lead screw 14, wherein the linkage block 15 is fixed with the suture fixing block 6. Thereby drive lead screw 14 through elevator motor and further drive suture fixed block 6 oscilaltion through linkage block 15 to the realization is to the taut work of different suture length, and because adjust to different distances between linkage block 15 and the suture fixed block 6 and can realize different drawing degree, thereby can also further adjust the pulling force size between anchor 7 and the suture 8 through this mechanism.
The first position adjusting mechanism 11 specifically comprises a first adjusting plate 17 fixed on the workbench, and a first adjusting rod 18 in threaded connection with the first adjusting plate 17, and the other end of the first adjusting rod 18 is connected with the anchor seat 4. When the device is used, the first adjusting rod 18 is rotated to drive the anchor seat 4 to move left and right, so that the anchor fixing platform 5 is further driven to move left and right, and finally, the left and right positions of the anchor on the anchor fixing platform 5 are adjusted.
Preferably, the anchor holder 4 is further provided with an adjusting groove 19 which is matched with the first adjusting rod 18 for adjustment. So that when the first adjusting rod 18 moves the anchor seat 4 left and right, the screw for fixing the anchor seat 4 can move in the adjusting slot 19, thereby facilitating the fixing of the anchor seat 4.
The second adjusting mechanism 12 includes a second adjusting plate 20 fixed on the anchor seat, and a second adjusting rod 21 in threaded connection with the second adjusting plate 20, and the other end of the second adjusting rod 21 is connected to the anchor fixing platform 5. When the device is used, the second adjusting rod 21 drives the anchor fixing platform 5 to move up and down, and finally the up-and-down position of the anchor on the anchor fixing platform 5 is adjusted.
Preferably, the structure for the up-and-down movement of the mating anchor fixing table 5 is: the anchor holder 4 is provided with a sliding chute 22, the anchor fixing platform 5 is provided with a sliding opening 23 matched with the sliding chute 22, and the sliding opening 23 is positioned in the sliding chute 22 and moves up and down along the sliding chute 22, so that the anchor fixing platform 5 moves up and down along the anchor holder 4.
The specific structure of the limiting mechanism 13 comprises limiting blocks 24 symmetrically arranged at the left side and the right side of the swing arm 3, and the limiting blocks 24 extend outwards in an inclined manner to form a limiting surface 25. When the swing arm mechanism is used, due to the arrangement of the limiting surface 25, two sides of the swing arm 3 can be in contact with the limiting surface 25 in the rotating process, so that the limiting surface 25 plays a limiting role, the swing arm 3 is prevented from continuously swinging outwards due to inertia in the swinging process to damage nearby objects or people, and meanwhile, the swing arm 3 is prevented from excessively rotating to damage parts.
Preferably, the limiting block 24 is further provided with a limiting adjusting screw 26, the limiting adjusting screw 26 is connected with the limiting block 24 through a thread, and the limiting adjusting screw 26 can be vertically screwed into or screwed out of the limiting surface 25 during use. When the swing arm 3 has a smaller swing amplitude, the adjusting screw 26 can be screwed out of the limiting surface 25 so that the adjusting screw 26 contacts with the swing arm 3 to generate limiting, and certainly, the limiting adjusting screw 26 can be screwed into the limiting surface 25 so that the limiting surface 25 directly contacts with the swing arm 3.
In this embodiment, the thread fixing block 6 is further provided with a threading screw 27, the threading screw 27 is fixed by two fastening nuts 28, and the threading screw 27 is further provided with a winding port 29 for facilitating winding of the thread. The suture is threaded from the winding port 29, so that the stability of the fixation of the suture at the 6 end of the suture fixing block is ensured, the suture is prevented from sliding out and being clamped at other positions, and the test effect of tension is influenced.
In this embodiment, a fixing recess 30 is provided in the anchor fixing table 5, T-shaped blocks 31 of different types are provided in the fixing recess 30, and a fastening screw 32 is further provided on one side of the anchor fixing table 31. The anchor is fixed through the T-shaped block 31 and the screw connected through the threads, the T-shaped block 31 is locked through the fastening screw 32 to prevent the T-shaped block 31 from shaking, and the stability of anchor fixing is guaranteed.
The above embodiment is only one of the preferable embodiments of the present patent, and any changes made without departing from the scope of the present patent are within the scope of the present patent.
Claims (10)
1. The utility model provides a measure tensile force and frictional behavior's tester between medical anchor and suture, includes the workstation, its characterized in that: the swing arm is provided with a suture fixing block, the tail part of the anchor is upwards fixed on the anchor fixing block, one end of the suture penetrates through the tail part of the anchor, the other end of the suture is wound on the suture fixing block, a rotating motor for driving the swing arm to swing left and right is further arranged in the base, the rotating motor is connected with the swing arm, and the suture fixing block is further provided with a deformation inductor;
the tester also comprises a lifting mechanism for adjusting the height of the suture fixing block, a first position adjusting mechanism for adjusting the upper position and the lower position of the anchor fixing table, a second adjusting mechanism for adjusting the left position and the right position of the anchor fixing table, and a limiting mechanism for preventing the swing arm from excessively rotating.
2. The tester for measuring tension and friction between a medical anchor and a suture of claim 1, wherein: the lifting mechanism comprises a lifting motor arranged in the base, a screw rod connected with the lifting motor and a linkage block arranged on the screw rod, and the linkage block is fixed with the suture fixing block.
3. The tester for measuring tension and friction between a medical anchor and a suture of claim 1, wherein: the first position adjusting mechanism comprises a first adjusting plate fixed on the workbench and a first adjusting rod in threaded connection with the first adjusting plate, and the other end of the first adjusting rod is connected with the anchor nail seat.
4. The tester of claim 3 wherein the tester is configured to measure tension and friction between the medical anchor and the suture, and wherein: and the anchor nail seat is also provided with an adjusting groove which is matched with the first adjusting rod for adjustment.
5. The tester for measuring tension and friction between a medical anchor and a suture of claim 1, wherein: the second adjusting mechanism comprises a second adjusting plate fixed on the anchor nail seat and a second adjusting rod in threaded connection with the second adjusting plate, and the other end of the second adjusting rod is connected with the anchor fixing platform.
6. The tester for measuring tension and friction between a medical anchor and a suture of claim 5, wherein: the anchor fixing platform is provided with a sliding opening matched with the sliding groove, and the sliding opening is positioned in the sliding groove and moves up and down along the sliding groove.
7. The tester for measuring tension and friction between a medical anchor and a suture of claim 1, wherein: the limiting mechanism comprises limiting blocks which are symmetrically arranged at the left side and the right side of the swing arm, and the limiting blocks extend outwards in an inclined manner to form a limiting surface.
8. The tester of claim 7 wherein the tester is adapted to measure tension and friction between the medical anchor and the suture, and wherein: the limiting block is also provided with a limiting adjusting screw, the limiting adjusting screw is in threaded connection with the limiting block, and the limiting adjusting screw is vertically screwed in or screwed out of the limiting surface.
9. The tester for measuring tension and friction between a medical anchor and a suture of claim 1, wherein: the thread fixing block is further provided with a threading screw, the threading screw is fixed through two fastening nuts, and the threading screw is further provided with a winding opening convenient for winding a thread.
10. The tester for measuring tension and friction between a medical anchor and a suture of claim 1, wherein: the anchor fixing platform is internally provided with a fixing groove, the fixing groove is internally provided with T-shaped blocks of different models, and one side of the anchor fixing platform is also provided with a fastening screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010728533.7A CN111795926B (en) | 2020-07-27 | 2020-07-27 | Tester for measuring tension and friction performance between medical anchor and suture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010728533.7A CN111795926B (en) | 2020-07-27 | 2020-07-27 | Tester for measuring tension and friction performance between medical anchor and suture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111795926A true CN111795926A (en) | 2020-10-20 |
| CN111795926B CN111795926B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010728533.7A Active CN111795926B (en) | 2020-07-27 | 2020-07-27 | Tester for measuring tension and friction performance between medical anchor and suture |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB353743A (en) * | 1930-09-01 | 1931-07-30 | Smith Major & Stevens Ltd | Improvements in or connected with apparatus for testing steel wire ropes |
| CN2835986Y (en) * | 2005-08-19 | 2006-11-08 | 中华人民共和国深圳出入境检验检疫局 | Fixing device for automatic deflection experiment testing instrument |
| JP2008203092A (en) * | 2007-02-20 | 2008-09-04 | Kobe Steel Ltd | Bending fatigue testing device |
| CN203658181U (en) * | 2013-11-26 | 2014-06-18 | 浙江省检验检疫科学技术研究院 | Novel self-adaptive mechanism for toy steel wire fatigue test |
| CN205786132U (en) * | 2016-06-02 | 2016-12-07 | 福建世纪电缆有限公司 | A kind of cable conductor single line bend test device |
| CN106596393A (en) * | 2016-12-05 | 2017-04-26 | 上海交通大学 | Multi-angle medical apparatus frictional property simulator when penetrating and crossing tissue |
| CN206515173U (en) * | 2017-03-09 | 2017-09-22 | 东莞市朋诚新材料科技有限公司 | A kind of electric wire crooked test machine |
| CN206531736U (en) * | 2017-03-09 | 2017-09-29 | 安徽理工大学 | One kind building optical cable bend resistance performance testing device |
| CN108398344A (en) * | 2018-02-26 | 2018-08-14 | 合肥工业大学 | It is a kind of can in-situ observation material internal fatigue crack growth frictional wear test device |
| CN108982258A (en) * | 2018-09-26 | 2018-12-11 | 东莞市丰易仪器有限公司 | A kind of automatic flexing tester |
| CN109374459A (en) * | 2018-09-06 | 2019-02-22 | 东华大学 | A kind of orthopaedics suture dynamic bending friction performance testing device and method |
-
2020
- 2020-07-27 CN CN202010728533.7A patent/CN111795926B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB353743A (en) * | 1930-09-01 | 1931-07-30 | Smith Major & Stevens Ltd | Improvements in or connected with apparatus for testing steel wire ropes |
| CN2835986Y (en) * | 2005-08-19 | 2006-11-08 | 中华人民共和国深圳出入境检验检疫局 | Fixing device for automatic deflection experiment testing instrument |
| JP2008203092A (en) * | 2007-02-20 | 2008-09-04 | Kobe Steel Ltd | Bending fatigue testing device |
| CN203658181U (en) * | 2013-11-26 | 2014-06-18 | 浙江省检验检疫科学技术研究院 | Novel self-adaptive mechanism for toy steel wire fatigue test |
| CN205786132U (en) * | 2016-06-02 | 2016-12-07 | 福建世纪电缆有限公司 | A kind of cable conductor single line bend test device |
| CN106596393A (en) * | 2016-12-05 | 2017-04-26 | 上海交通大学 | Multi-angle medical apparatus frictional property simulator when penetrating and crossing tissue |
| CN206515173U (en) * | 2017-03-09 | 2017-09-22 | 东莞市朋诚新材料科技有限公司 | A kind of electric wire crooked test machine |
| CN206531736U (en) * | 2017-03-09 | 2017-09-29 | 安徽理工大学 | One kind building optical cable bend resistance performance testing device |
| CN108398344A (en) * | 2018-02-26 | 2018-08-14 | 合肥工业大学 | It is a kind of can in-situ observation material internal fatigue crack growth frictional wear test device |
| CN109374459A (en) * | 2018-09-06 | 2019-02-22 | 东华大学 | A kind of orthopaedics suture dynamic bending friction performance testing device and method |
| CN108982258A (en) * | 2018-09-26 | 2018-12-11 | 东莞市丰易仪器有限公司 | A kind of automatic flexing tester |
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| Publication number | Publication date |
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| CN111795926B (en) | 2023-03-24 |
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