CN204484273U - Screw structure - Google Patents
Screw structure Download PDFInfo
- Publication number
- CN204484273U CN204484273U CN201520109617.7U CN201520109617U CN204484273U CN 204484273 U CN204484273 U CN 204484273U CN 201520109617 U CN201520109617 U CN 201520109617U CN 204484273 U CN204484273 U CN 204484273U
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- ligament
- bolt structure
- nail
- thread
- 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
- 210000003041 ligament Anatomy 0.000 claims abstract description 51
- 210000000689 upper leg Anatomy 0.000 claims description 22
- 210000002303 tibia Anatomy 0.000 claims description 18
- 210000000988 bone and bone Anatomy 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 8
- 238000002513 implantation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 239000007943 implant Substances 0.000 description 2
- 210000001699 lower leg Anatomy 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Abstract
A screw structure for ligament operation is composed of a female screw with external screw thread and a connecting space. The utility model discloses a screw structure is still including the sub-nail that possesses first connecting portion and second connecting portion, and this first connecting portion are inserted and are located this connection space to be connected with this female nail, and a ligament is connected in this second connecting portion confession.
Description
Technical field
This utility model relates to a kind of bolt structure, espespecially a kind of bolt structure possessing mother's nail and the son nail that can movablely engage.
Background technology
Movement relation between thigh femur and calf shank, is driven by muscle and ligament, and all must be undertaken by the motion of thigh and shank internode, so the sport injury of ligament also the most often betides this because majority moves.
When damage occurs ligament, the natural ligament at allosome ligament or other position is migrated to impaired sentencing and rebuilds, be a kind of common operation method.In this operation method, namely the one end of the natural ligament transplanted can be fixed on femur, and the other end of natural ligament then can be fixed on tibia.
But existing implantation of ligament equipment A, as Endobutton, as shown in Figure 5A, it uses schematic diagram as shown in Figure 5 B to its structural representation.Specifically, when using transplanting equipment A, need first flatten again after the hard bone pull-out of femur end thus produce gap, and also can cause the axial polar effect that stretches tight to strain, meanwhile, because be fastened on hard bone, therefore cause the total length of ligament 5 ' to extend, easily make ligament 5 ' swing in bone inner tunnel and produce rain brush effect, moreover its Superficial Foreign Body sense also exist all the time.
In addition, existing implantation of ligament equipment B, as interference screw equipment, it uses schematic diagram as shown in Figure 5 C.Specifically, it also because utilizing the fixed form of compressing ligament 5 ', thus can produce the shortcoming expanding tunnel when implanting, moreover also because the fixed form of compressing ligament 5 ', ligament 5 ' is more likely pullled destruction.
Therefore, how to provide one when ligament reconstructive, can be fixed in bone, and avoid the operation structure that improper compressing and ligament torsion occur, be the problem that industry is urgently to be resolved hurrily.
Summary of the invention
In view of the various shortcoming of prior art, one of main purpose of the present utility model, is namely to provide one when implantation of ligament, can be fixed in bone, and avoids the structure that improper compressing and ligament torsion occur.
In order to achieve the above object with other object, this utility model provides a kind of bolt structure, and it is for carrying out ligament reconstructive operation, comprise: female nail, be arranged in a bone, and possess the external screw thread being formed in this mother nail outer peripheral face, and be formed in the inner connection space of this mother nail; And son nail, possess the first connecting portion and the second connecting portion, wherein, this first connecting portion is inserted in this connection space and is connected to follow closely with this mother, and this second connecting portion is for connection one ligament.
Implement in kenel one, female nail can be arranged at femur, and ligament can be connected between femur and tibia.
Implement in kenel one, this ligament is connected between a femur and a tibia; This connection space possesses female thread, and this first connecting portion possesses the connecting thread corresponding with this female thread.
Implement in kenel one, the pitch of this female thread is less than this externally threaded pitch.
Implement in kenel one, this female thread is formed in the subregion of this connection space near the one end of planting for this first connecting portion, and this connecting thread is formed in the subregion of this first connecting portion away from one end of this second connecting portion.
Implement in kenel one, the length forming the subregion of this female thread equals the length of the subregion forming this connecting thread.
Implement in kenel one, this ligament is connected between a femur and a tibia; One end that this connection space is planted for this first connecting portion forms flange, and this first connecting portion forms the elastic snap fit of tool away from one end of this second connecting portion.
Implement in kenel one, the length of this flange equals the length that this first connecting portion does not form the region of this snap fit.
Implement in kenel one, this ligament is connected between a femur and a tibia; This second connecting portion possesses the passage be formed in this second connecting portion, and this passage passes for suture to connect this ligament.
Implement in kenel one, the first connecting portion is vertical arranges with this for this passage.
Implement in kenel one, this ligament is connected between a femur and a tibia; The diameter of this mother nail equals the diameter of this second connecting portion, wherein, this bolt structure be arranged at this femoral far from this tibia 1/3rd region in.
The beneficial effects of the utility model are: compared to prior art, because technology of the present utility model is by being fixed on femur and tibia with sub nail by ligament by the mutual movable mother's nail mated, so, any meeting makes ligament that the stress of improper torsion occur, namely the activity relationship between following closely by mother's nail and son is absorbed, and then reaches the surgical target not making ligament that improper torsion occurs.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of bolt structure of the present utility model;
Fig. 2 is the structural representation of another embodiment of bolt structure of the present utility model;
Fig. 3 is the structural representation of the embodiment again of bolt structure of the present utility model;
Fig. 4 is an application schematic diagram of bolt structure of the present utility model;
Fig. 5 A is the structural representation of existing transplanting equipment;
Fig. 5 B is the application schematic diagram of the transplanting equipment shown in Fig. 5 A; And
Fig. 5 C is the application schematic diagram of another existing transplanting equipment.
Wherein, description of reference numerals is as follows:
Bolt structure 1,2,3
Female nail 10,20,30
Son nail 11,21,31
External screw thread 100,200,300
Connection space 101,201,301
Female thread 1010,2010
Connecting thread 1100,2101
Flange 302
Snap fit 3100
Suture 4,6
Ligament 5,5 '
Nail 7
Femur 8
Tibia 9
Transplant equipment A, B
Detailed description of the invention
Structure, ratio, size etc. that this description institute accompanying drawing illustrates, content only in order to coordinate description to disclose, for the understanding of personage and the reading of being familiar with this skill, and be not used to limit the enforceable qualifications of this utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that this utility model can produce and the object that can reach, still all should drop on technology contents that this utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", the term such as D score and " ", be also only be convenient to describe understand, and be not used to limit the enforceable scope of this utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of this utility model.
Please first consult Fig. 1, to understand an embodiment of the present utility model.As shown in the figure, bolt structure 1 comprises female nail 10 and son nail 11.
Female nail 10 is arranged in a bone, and possesses the external screw thread 100 being formed in this mother nail 10 outer peripheral faces, and is formed in the connection space 101 of this mother nail 10 inside.Implement kenel one, female nail 10 can be arranged in femur.Son nail 11 possesses the first connecting portion 110 and the second connecting portion 111, and wherein, this first connecting portion 110 is inserted in this connection space 101 and is flexibly connected to follow closely 10 with this mother, and this second connecting portion 111 is for connection one ligament.
In the present embodiment, this connection space 101 can possess female thread 1010, and this first connecting portion 110 possesses the connecting thread 1100 corresponding with this female thread 1010, completes flexible connection by this.And the pitch of this female thread 1010, the pitch of this external screw thread 100 can be less than.In operation process, female nail 10 carries out torsion by instrument and locks, and is with mover to follow closely 11 by axially entering among female nail, but does not make son nail 11 occur excessively to reverse.For simplified illustration, the thin portion in operation process operates this utility model and is omitted.
Moreover as shown in Figure 2, it is for illustrating another embodiment of the present utility model.In the present embodiment, female nail 20 has external screw thread 200 similar in appearance to the component of previous embodiment and connection space 201 equally, and son nail 21 has the first connecting portion 210 and the second connecting portion 211 of the component similar in appearance to previous embodiment equally.With previous embodiment unlike, female thread 2010 only can be formed in the subregion of connection space 201 near the one end of planting for the first connecting portion 210, as shown in the figure, and connecting thread 2101 only can be formed in the subregion of the first connecting portion 210 away from one end of the second connecting portion 211, as shown in the figure.Moreover, form the zone length of the subregion of female thread 2010, the zone length of the subregion forming connecting thread 2101 can be equaled.In this embodiment, first connecting portion 210 is inserted in after in connection space 201 completely, the rotation that female nail 20 and son follow closely 21 namely can not interlock, namely also son nail 21 can be followed closely 20 relative to mother and dallies, therefore, female nail 20 except son being followed closely 21 drives to precalculated position, more can absorb the stress making natural ligament that improper torsion occurs further in operation process.
In addition, as shown in Figure 3, it is for illustrating another embodiment of the present utility model.In the present embodiment, female nail 30 has external screw thread 300 similar in appearance to the component of previous embodiment and connection space 301 equally, and son nail 31 has the first connecting portion 310 and the second connecting portion 311 of the component similar in appearance to previous embodiment equally.
The one end of planting for this first connecting portion 310 unlike, this connection space 301 with previous embodiment can form flange 302, and this first connecting portion 310 can form the elastic snap fit 3100 of tool away from one end of this second connecting portion 311.When planting, the elastic snap fit 3100 of tool can first inwardly shrink because of supporting of flange 302, at snap fit 3100 by after flange 302, the elastic snap fit 3100 of tool namely can the reinstatement because of elasticity itself, support to produce with flange 302, thus complete female nail 30 and follow closely being flexibly connected between 31 with son.Meanwhile, during actual implantation, female nail 30 first can lock femur, and son nail 31 can be fixed in mother's nail 30 by the reverse mode drawn in again.In comparison, previous embodiment is when reality is implanted, and son nail 11 (21) then first can lock female nail 10 (21) a small amount of thread numbers, then follows closely 10 (21) via mother and be with mover to follow closely 11 (21) simultaneously.
In the present embodiment, the length of this flange 302, can equal the length that this first connecting portion 310 does not form the region of this snap fit 3100.This second connecting portion 311 can possess the passage 3110 be formed in this second connecting portion 311, and this passage 3110 can for suture through the ligament to connect transplanting.This passage 3110 can the first connecting portion 310 be vertical arranges with this.
Certainly, other embodiment aforesaid, all can possess the passage 3110 be formed in this second connecting portion 311.And any embodiment of the present utility model, the diameter of female nail 10 (20 or 30), can equal the diameter of this second connecting portion 111 (211 or 311).In addition, after having implanted, because the rotation of son nail 11 (21,31) can not be restricted in, so can not cause the shortcoming excessively reversed.
When actual enforcement operation completes, as shown in Figure 4, bolt structure 1 (2 or 3) can be embedded in femur 8, son nail connects the one end of the ligament 5 transplanted by suture 4, the other end multiple connection of ligament 5 has suture 6,6, suture is fixed in the hard bone district of tibia 9 by nail 7, also namely ligament 5 can be connected between femur 8 and tibia 9, because this nail 7 is fixed in the hard bone district of tibia 9, can avoid having ligament as prior art pullling and allow the shortcoming of user foreign body sensation.Moreover, bolt structure 1 (2 or 3) is after implantation completes, can be arranged in femur 8 away from the region of 1/3rd of tibia 9, also that is, femur 8 long-range (distal) 1/3rd region in, this benefit resides in reduced the length needed for ligament implant, except obtaining property is higher, and the problem of rear generation stability deficiency of simultaneously can avoiding making because the long caused stiffness (stiffness) of ligament implant length is lower having performed the operation.
Compared to prior art, due to bolt structure of the present utility model, mutually to mate between following closely with son by mother's nail, with the characteristic absorbing stress by architectural characteristic simultaneously, the stress that can make the ligament of transplanting that improper torsion occurs is avoided to be applied directly on ligament, in other words, due to mother nail and son follow closely between activity relationship can absorb stress, not only can complete hands art smoothly, the probability that improper torsion occurs ligament also can significantly reduce, simultaneously, also can not have prior art and there is gap, stretch tight polar effect, rain brush effect, Superficial Foreign Body sense, or the improper shortcoming expanding implantation tunnel.
Above-described embodiment in order to illustrative principle of the present utility model and effect thereof, but not for limiting this utility model.Any personage haveing the knack of this skill all without prejudice under spirit of the present utility model and category, can modify to above-described embodiment.Therefore rights protection scope of the present utility model, should listed by the scope of appending claims.
Claims (10)
1. a bolt structure, it, for carrying out operation on ligament, is characterized in that, comprising:
Female nail, is arranged in a bone, and possesses the external screw thread being formed in this mother nail outer peripheral face and the connection space being formed in this mother nail inside; And
Son nail, possess the first connecting portion and the second connecting portion, wherein, this first connecting portion is inserted in this connection space and is connected to follow closely with this mother, and this second connecting portion is for connection one ligament.
2. bolt structure as claimed in claim 1, it is characterized in that, this ligament is connected between a femur and a tibia; This connection space possesses female thread, and this first connecting portion possesses the connecting thread corresponding with this female thread.
3. bolt structure as claimed in claim 2, it is characterized in that, the pitch of this female thread is less than this externally threaded pitch.
4. bolt structure as claimed in claim 2, it is characterized in that, this female thread is formed in the subregion of this connection space near the one end of planting for this first connecting portion, and this connecting thread is formed in the subregion of this first connecting portion away from one end of this second connecting portion.
5. bolt structure as claimed in claim 4, it is characterized in that, the length forming the subregion of this female thread equals the length of the subregion forming this connecting thread.
6. bolt structure as claimed in claim 1, it is characterized in that, this ligament is connected between a femur and a tibia; One end that this connection space is planted for this first connecting portion forms flange, and this first connecting portion forms the elastic snap fit of tool away from one end of this second connecting portion.
7. bolt structure as claimed in claim 6, it is characterized in that, the length of this flange equals the length that this first connecting portion does not form the region of this snap fit.
8. bolt structure as claimed in claim 1, it is characterized in that, this ligament is connected between a femur and a tibia; This second connecting portion possesses the passage be formed in this second connecting portion, and this passage passes for suture to connect this ligament.
9. bolt structure as claimed in claim 8, is characterized in that, the first connecting portion is vertical arranges with this for this passage.
10. bolt structure as claimed in any one of claims 1-9 wherein, it is characterized in that, this ligament is connected between a femur and a tibia; The diameter of this mother nail equals the diameter of this second connecting portion, wherein, this bolt structure be arranged at this femoral far from this tibia 1/3rd region in.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103202836 | 2014-02-19 | ||
| TW103202836U TWM480987U (en) | 2014-02-19 | 2014-02-19 | Structure of cap screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204484273U true CN204484273U (en) | 2015-07-22 |
Family
ID=51723154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520109617.7U Active CN204484273U (en) | 2014-02-19 | 2015-02-13 | Screw structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204484273U (en) |
| TW (1) | TWM480987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055049A (en) * | 2015-09-21 | 2015-11-18 | 中南大学湘雅医院 | Endoprosthesis for reestablishment of knee joint cruciate ligaments under full arthroscope |
-
2014
- 2014-02-19 TW TW103202836U patent/TWM480987U/en unknown
-
2015
- 2015-02-13 CN CN201520109617.7U patent/CN204484273U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055049A (en) * | 2015-09-21 | 2015-11-18 | 中南大学湘雅医院 | Endoprosthesis for reestablishment of knee joint cruciate ligaments under full arthroscope |
| CN105055049B (en) * | 2015-09-21 | 2017-04-12 | 中南大学湘雅医院 | Endoprosthesis for reestablishment of knee joint cruciate ligaments under full arthroscope |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM480987U (en) | 2014-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |