CN208081339U - A kind of tendon fixation device - Google Patents
A kind of tendon fixation device Download PDFInfo
- Publication number
- CN208081339U CN208081339U CN201721071429.5U CN201721071429U CN208081339U CN 208081339 U CN208081339 U CN 208081339U CN 201721071429 U CN201721071429 U CN 201721071429U CN 208081339 U CN208081339 U CN 208081339U
- Authority
- CN
- China
- Prior art keywords
- expansion
- fixing end
- tendon
- extrusion screw
- fixation device
- 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
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a kind of tendon fixation device, including absorbable extrusion screw and mating expansion sheath, the absorbable extrusion screw is made of tapered squeezing portion and fixed part, its tapered squeezing portion axis direction is equipped with handle hole, fixed part is equipped with fastening thread a, the expansion sheath approximation bullet moulding, lead in its inside, it is made of expansion fixing end and unexpansive fixing end, the deformable leaflet that the expansion fixing end is distributed by four central symmetries is constituted, it is provided with fastening thread b in the unexpansive fixing end, fixed effect can be reached with fastening thread a cooperations on extrusion screw.The utility model tendon fixation device effectively improves fixed effect when tendon is fixed, and enhances anti-drop function, and the working strength for the person that alleviates clinical manipulation improves procedure efficiency.
Description
Technical field
The utility model is related to technical field of medical equipment, and in particular to a kind of tendon fixation device.
Background technology
Tendon, that is, muscle.Invest joint is muscle, is wrapped in outside tendon and is fascia.Each piece of skeletal muscle is all divided into belly of muscle and flesh
Tendon two parts, belly of muscle are made of muscle fibre, and the red matter of color is soft, have contractility, tendon to be made of dense connective tissue, color in vain compared with
Firmly, without contractility.The tendon of long flesh is in circle strand more, and the tendon of platysma is wealthy and thin, is in membranaceous, is called aponeurosis (aponeuroses).Muscle is hard
It is tough bold, to the function of the locomotive organs such as joint muscle Constrained and protection.
Cruciate ligament is one of most common and serious athletic injury, and ligamentaum cruciatum tearing causes joint instability, such as
Malpractice can cause instability of knee, subsequent articular cartilage damage to eventually lead to the generation of osteoarthropathy, seriously affect knee pass
Function is saved, causes patient's daily routines limited, and gradually cause the decline of self-care ability and the forfeiture of self-confidence.Extrusion screw is used
In carrying out ligamentaum cruciatum reparation under arthroscope, fixed tendon is in the healing in osseous tunnel, ensureing tendon.
The extrusion screw product that the country uses at present is generally Titanium Alloy Screw or bioabsorbable interference screw, these products are main
Have：
First, the defect of therapy.The therapy of Cruciate ligament reconstruction art mainly has extrusion screw nesting to fix, band
Line holdfast buckles fixation and gate nail Suspending fixation with line card.There is a serious defect in these methods：Tendon is not tight
Close to be fixed on bone road wall, tendon will produce " pendulum effect " or " bungee jumping effect " when movement, in sharp osseous tunnel internal orifice position
It is upper constantly slit, tendon may be caused loosely even to be broken, reduce joint motions function.Meanwhile tendon cannot well and
Bone road wall contact, it is difficult to form tenostosis, influence tendon-bone and restore.
Second is that the defect of design.The Design of Screw Thread of screw is at sharp tapping screw thread.Due to the osseous tunnel drilled out when operation
It is big or slightly smaller with screw diameter etc., equivalent diameter tendon graft is also implanted into osseous tunnel, at this time screw it is sharp from
Tapping is easy to cutting tendon graft and bone road wall, leads to tendon graft mechanical properties decrease and cannot be fixedly secured,
Tendon is broken again in moving after surgery when serious.In addition, threaded tip is easily bent deformation during squeezing bone road
Fixed force is caused to decline.
Utility model content
The purpose of the utility model is to overcome the above-mentioned problems in the prior art, provide a kind of tendon fixation dress
It sets, effectively improves fixed effect when tendon is fixed, enhance anti-drop function, the work for the person that alleviates clinical manipulation is strong
Degree improves procedure efficiency.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions：
A kind of tendon fixation device, including absorbable extrusion screw and mating expansion sheath, the absorbable extrusion screw
It is made of tapered squeezing portion and fixed part, tapered squeezing portion axis direction is equipped with handle hole, and fixed part is equipped with fastening thread
A, the expansion sheath are the mellow and full taper in tip, lead in inside, are made of expansion fixing end and unexpansive fixing end, institute
It states the deformable leaflet that expansion fixing end is distributed by four central symmetries to constitute, fastening is provided in the unexpansive fixing end
Screw thread b can reach fixed effect with fastening thread a cooperations on extrusion screw.
Preferably, the tapered squeezing portion and fixed part at an angle, when absorbable extrusion screw screws in and expands sheath,
Tapered squeezing portion can oppress expansion sheath expansion to achieve the effect that fixed tendon, while can prevent expansion sheath abjection marrow
Road increases fixed effect.
Preferably, the expansion sheath appearance is evenly distributed with limit pawl and guided way.
Preferably, it when the unexpansive fixing end bottom is equipped with extrusion screw screw-in expansion sheath is prevented, is stranded inside expansion sheath
The conducting orifice of gas or tired liquid.
The utility model has the beneficial effects that：
1, utility model tendon fixation device effectively improves fixed effect when tendon is fixed, and enhances anticreep work(
Can, the working strength for the person that alleviates clinical manipulation improves procedure efficiency.
2, the tapered squeezing portion of the utility model tendon fixation device and fixed part at an angle, spiral shell are squeezed absorbable
When nail screws in expansion sheath, tapered squeezing portion can oppress expansion sheath expansion to achieve the effect that fixed tendon, while can be to prevent
Only expansion sheath abjection marrow road, increases fixed effect.
3, the deformable leaflet structure that the expansion fixing end of the utility model tendon fixation device is distributed by four central symmetries
At can outwardly be expanded under the compressing in tapered squeezing portion, when absorbable extrusion screw is screwed in reach fixed Anti-extrusion
Effect.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of tendon fixation device described in the utility model；
Fig. 2 is tendon fixation device working state schematic representation described in the utility model；
Fig. 3 is absorbable extrusion screw described in the utility model and schematic cross-section；
Fig. 4 is the vertical view of absorbable extrusion screw described in the utility model；
Fig. 5 is the dimensional structure diagram of absorbable extrusion screw described in the utility model；
Fig. 6 is expansion sheath described in the utility model and schematic cross-section；
Fig. 7 is the vertical view of expansion sheath described in the utility model；
Fig. 8 is expansion sheath dimensional structure diagram described in the utility model；
In attached drawing, parts list represented by the reference numerals are as follows：
1- can absorb extrusion screw, and 2- expands sheath, 11- tapered squeezings portion, 12- fixed parts, 13- handle holes, 21- expansions
Fixing end, the unexpansive fixing ends of 22-, 23- limit pawls, 24- guided ways, the deformable leaflets of 121- fastening threads a, 211-,
221- fastening threads b, 222- conducting orifice.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The all other embodiment obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1 shown in -8, the utility model is a kind of tendon fixation device, including absorbable extrusion screw (1) and
Mating expansion sheath (2), the absorbable extrusion screw (1) are made of tapered squeezing portion (11) and fixed part (12), taper
Press section (11) axis direction is equipped with handle hole (13), and fixed part (12) is equipped with fastening thread a (121), the expansion sheath (2)
Approximate bullet moulding is led in inside, is made of expansion fixing end (21) and unexpansive fixing end (22), the expansion fixation
The deformable leaflet (211) that end (21) is distributed by four central symmetries is constituted, and is provided in the unexpansive fixing end (22)
Fastening thread b (221) can reach fixed effect with fastening thread a (121) cooperations on extrusion screw (1).
Wherein, tapered squeezing portion (11) and fixed part (12) at an angle, are screwed in absorbable extrusion screw (1) and are expanded
When sheath (2), tapered squeezing portion (11) can oppress expansion sheath (2) and expand to achieve the effect that fixed tendon, while can be to prevent
Only expansion sheath (2) deviates from marrow road, increases fixed effect.
Wherein, expansion sheath (2) appearance is evenly distributed with limit pawl (23) and guided way (24).
Wherein, when unexpansive fixing end (22) bottom is equipped with extrusion screw (1) screw-in expansion sheath (2) are prevented, sheath (2) is expanded
The conducting orifice (222) of internal trapped gas or tired liquid.
One of the present embodiment has particular application as：Expansion sheath (2) is first inserted by a kind of tendon fixation device when in use
Marrow road, when insertion, downwards on one side and expansion sheath (2) sheath body institute is angled by limit pawl (23) position on expansion sheath (2)
For the acute angle less than 30 °, and it is provided with guided way (24) with sheath, therefore expands sheath (2) and be inserted into time saving and energy saving when marrow road, reduces
Tendon improves the working efficiency of operator to the possibility of tunnel internal by band simultaneously；
After the completion of expanding sheath (2) insertion, absorbable extrusion screw (1) is screwed in by handle hole (13) using specific purpose tool
Sheath (2) is expanded, being threaded to tapered squeezing portion (11) top surface, sheath (2) top is substantially flush can not continue screw-in with expansion；At this point,
The expansion fixing end (21) of expansion sheath (2) is since the compressing of tapered squeezing portion (11) expands outward, to squeeze tendon and bone
Marrow road achievees the effect that fixation is anti-slip；It effectively improves fixed effect when tendon is fixed, and enhances anti-drop function,
The working strength for the person that alleviates clinical manipulation improves procedure efficiency.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiments or example
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, does not limit the specific implementation mode that the utility model is only described yet.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, to enable skilled artisan to be best understood by and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (4)
1. a kind of tendon fixation device, it is characterised in that：It is described including absorbable extrusion screw (1) and mating expansion sheath (2)
Absorbable extrusion screw (1) is made of tapered squeezing portion (11) and fixed part (12), and tapered squeezing portion (11) axis direction is set
There are handle hole (13), fixed part (12) to be equipped with fastening thread a (121), the expansion sheath (2) is the mellow and full taper in tip,
Lead in inside, is made of expansion fixing end (21) and unexpansive fixing end (22), the expansion fixing end (21) is by four centers
Symmetrical deformable leaflet (211) is constituted, and fastening thread b (221) is provided in the unexpansive fixing end (22), can
To reach fixed effect with fastening thread a (121) cooperations on extrusion screw (1).
2. a kind of tendon fixation device as described in claim 1, it is characterised in that：The tapered squeezing portion (11) and fixed part
(12) at an angle.
3. a kind of tendon fixation device as described in claim 1, it is characterised in that：Expansion sheath (2) appearance is uniformly distributed
There are limit pawl (23) and guided way (24).
4. a kind of tendon fixation device as described in claim 1, it is characterised in that：Unexpansive fixing end (22) bottom is set
When preventing extrusion screw (1) from screwing in expansion sheath (2), the conducting orifice (222) of the internal trapped gas of expansion sheath (2) or tired liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721071429.5U CN208081339U (en) | 2017-08-23 | 2017-08-23 | A kind of tendon fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721071429.5U CN208081339U (en) | 2017-08-23 | 2017-08-23 | A kind of tendon fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208081339U true CN208081339U (en) | 2018-11-13 |
Family
ID=64067165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721071429.5U Expired - Fee Related CN208081339U (en) | 2017-08-23 | 2017-08-23 | A kind of tendon fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208081339U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567983A (en) * | 2018-11-28 | 2019-04-05 | 北京航空航天大学 | Horn-like implantation material and its method for implantation |
| CN111700675A (en) * | 2020-05-28 | 2020-09-25 | 广州新诚生物科技有限公司 | Interface screw |
| CN111820968A (en) * | 2020-07-18 | 2020-10-27 | 北京中安泰华科技有限公司 | Expansion type fixing pin |
| CN113974730A (en) * | 2021-12-30 | 2022-01-28 | 杭州锐健马斯汀医疗器材有限公司 | Fixing system |
-
2017
- 2017-08-23 CN CN201721071429.5U patent/CN208081339U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567983A (en) * | 2018-11-28 | 2019-04-05 | 北京航空航天大学 | Horn-like implantation material and its method for implantation |
| CN111700675A (en) * | 2020-05-28 | 2020-09-25 | 广州新诚生物科技有限公司 | Interface screw |
| CN111820968A (en) * | 2020-07-18 | 2020-10-27 | 北京中安泰华科技有限公司 | Expansion type fixing pin |
| CN113974730A (en) * | 2021-12-30 | 2022-01-28 | 杭州锐健马斯汀医疗器材有限公司 | Fixing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208081339U (en) | A kind of tendon fixation device | |
| CN103315798B (en) | Bone tunnel fixator for anterior cruciate ligament reconstruction | |
| CN208725787U (en) | The assembly of bone nail has | |
| CN104905859A (en) | Fixing device, fixing method and application method for reconstruction of cruciate ligaments | |
| CN201197743Y (en) | Anti-loose bone nail | |
| CN112754639A (en) | Novel interface screw | |
| CN103099668B (en) | Expanding type extrusion nail | |
| CN205411233U (en) | Hollow interface nail | |
| CN207613859U (en) | A kind of casing type pressure peg | |
| AU2015217404A1 (en) | Flexible bone dilator | |
| CN209661713U (en) | A kind of tendon fixed sleeve part | |
| CN205073002U (en) | Distal end inflation is from locking -type intramedullary nail | |
| CN205094565U (en) | Fixing device of kneecap fracture | |
| CN204072300U (en) | A kind of bone screw | |
| CN206745483U (en) | A kind of femoral prosthesis handle for femur size trochanteric fracture | |
| CN105943103B (en) | Anchoring piece | |
| CN210697713U (en) | A take line metal anchor for soft tissue is fixed | |
| CN107714119B (en) | Interface screw of reverse installation | |
| CN202723961U (en) | Lower patella polar aggregator | |
| CN219895891U (en) | Expansion bone nail | |
| CN207477587U (en) | Shape memory fracture fixing apparatus | |
| CN216652429U (en) | Novel fracture fixation device | |
| CN205988317U (en) | Intramedullary nail with lock circle shoulder pole type high screw thread spongy bone pinning | |
| CN211796672U (en) | Medical single nail with hole | |
| CN216294225U (en) | Anatomical form locking plate screw 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: 20181113 Termination date: 20190823 |