CN204072288U - A kind of monolateral exterior fixation bracket - Google Patents
A kind of monolateral exterior fixation bracket Download PDFInfo
- Publication number
- CN204072288U CN204072288U CN201420398519.5U CN201420398519U CN204072288U CN 204072288 U CN204072288 U CN 204072288U CN 201420398519 U CN201420398519 U CN 201420398519U CN 204072288 U CN204072288 U CN 204072288U
- Authority
- CN
- China
- Prior art keywords
- straight type
- fixation bracket
- nail clip
- exterior fixation
- spicule
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 18
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 14
- 229920002530 polyetherether ketone Polymers 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 208000012201 sexual and gender identity disease Diseases 0.000 description 1
- 208000015891 sexual disease Diseases 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
This utility model relates to a kind of monolateral exterior fixation bracket, belongs to surgical medical equipment technical field.This monolateral exterior fixation bracket comprises spicule and support body, it is characterized in that: described support body comprises nail clip and the middle nail clip of straight type outside slide track bar, straight type; Outside straight type, nail clip and the middle nail clip of straight type are fixed on slide track bar by housing screw, and can slide up and down along slide track bar; Outside straight type, the bottom of nail clip and the middle nail clip of straight type is provided with T-shaped swivel nut, and middle part is provided with spicule hole, and top is provided with pressing plate, and pressing plate is connected with pressing plate seat by lock-screw, and housing screw and lock-screw all match with T-shaped swivel nut.This exterior fixation bracket structure is simple, easily operates, and fracture is less likely to occur stressed member.
Description
Technical field
This utility model relates to a kind of monolateral exterior fixation bracket, belongs to surgical medical equipment technical field.
Background technology
The fixed form that treatment extremity fracture is conventional has extenal fixation formula and internally-fixed two kinds.It is fixing etc. that extenal fixation mode comprises plintlet, plaster bandage, exterior fixation bracket, traction braking, and methods of internal fixation then comprises by surgical incision muscular tissue, assigns steel plate, draw point, screw etc.
Adopt methods of internal fixation treatment extremity fracture no doubt can improve the reduction of the fracture, but take out fixed apparatus and need to carry out second operation, with the addition of misery to patient, and intra-operative very easily infects, cause limbs generating function sexual disorders after union of fracture.
Exterior fixation bracket is entered fracture two ends pin or nail bit, after will penetrate fracture outward at skin pin be fixed in exterior fixation bracket, there is following effect: the good reset that can keep fracture end; Fracture two ends can be retracted to extend limbs; Can condensation technique be utilized, promote union of fracture; Early stage angulation deformity and rotation deformity can be corrected, as old fracture.
In orthopaedic surgical procedure, extenal fixation has the features such as operation wound is little, easy and simple to handle, functional diversities, but postoperative handicapped, the needle track caused to patient loosens and infect and the inconvenience of postoperative Imaging Study is the principal element that govern extenal fixation development always.In tradition exterior fixation bracket, material used generally adopts aluminium alloy and rustless steel.As everyone knows, titanium alloy has excellent specific strength performance, fiber reinforcement type polyether-ether-ketone (PEEK) due to its material light, light-permeable and be nonmagneticly widely used in medical apparatus and instruments, but, fiber reinforcement type polyether-ether-ketone (PEEK) material is due to its poor toughness, and the stressed member using it to produce often also exists very large risk of breakage.
Notification number is that the utility model of CN202277375U discloses a kind of exterior fixation bracket, comprises main frame body, clamp assembly, prelum, bone anchoring elements and commutation assembly, and wherein main frame body and clamp assembly are because macromolecular material is made, and all have female thread.Because this novel female thread is set directly in main frame body and clamp assembly material, and helicitic texture part is stressed member, is easy to rupture.
Utility model content
The purpose of this utility model is: overcome the defect that prior art exists, propose a kind of monolateral exterior fixation bracket, and this exterior fixation bracket structure is simple, easily operates, and fracture is less likely to occur stressed member.
The purpose of this utility model is realized by following technical proposals:
A kind of monolateral exterior fixation bracket, comprises spicule and support body, it is characterized in that: described support body comprises nail clip and the middle nail clip of straight type outside slide track bar, straight type; Outside straight type, nail clip and the middle nail clip of straight type are fixed on slide track bar by housing screw, and can slide up and down along slide track bar; Outside straight type, the bottom of nail clip and the middle nail clip of straight type is provided with T-shaped swivel nut, and middle part is provided with spicule hole, and top is provided with pressing plate, and pressing plate is connected with pressing plate seat by lock-screw, and housing screw and lock-screw all match with T-shaped swivel nut.
As preferably, described slide track bar is U-shaped, and is provided with elongated slot in the middle of U-shaped bottom, U-shaped bottom is also provided with reinforcement.
As preferably, described slide track bar is provided with scale.
As preferably, described T-shaped swivel nut has 2.
As preferably, described spicule hole has 5.
As preferably, described monolateral exterior fixation bracket also comprises spicule replacement bar.
As preferably, the material of described support body is fiber reinforcement type polyether-ether-ketone (PEEK).
As preferably, described T-shaped swivel nut is made up of TC4 material.
The beneficial effects of the utility model: a kind of monolateral exterior fixation bracket of this utility model, this exterior fixation bracket structure is simple, easily operates, and outside straight type, the bottom of nail clip and the middle nail clip of straight type is provided with T-shaped swivel nut, makes stressed member that fracture be less likely to occur.Basis is novel has inlayed into T-shaped swivel nut in PEEK material, play and prevent revolving effect, in T-shaped swivel nut, there is helicitic texture, it is made for TC4 material, like this, when screwing lock-screw or housing screw, pulling force is just delivered to the square bottom surface of T-shaped swivel nut by helicitic texture and acts on seat surface, prevents the original direct thread that the screw thread that PEEK material directly makes causes due to insufficient strength to burst apart; Slide track bar is that U-shaped bottom is provided with reinforcement, enhances its integral rigidity; Arrange 2 T-shaped swivel nuts, outside the middle nail clip of straight type and straight type, nail clip is sliding into reinforcement, has namely blocked housing screw and has been connected with T-shaped swivel nut at a place, can change like this to another place.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining this utility model, is not formed improper restriction of the present utility model.
Fig. 1 is the structural representation of a kind of monolateral exterior fixation bracket of this utility model;
Fig. 2 is the side view of nail clip in the middle of straight type;
Fig. 3 is the sectional view of Fig. 2 along A-A;
Fig. 4 is the sectional view of nail clip outside straight type;
Fig. 5 is the side view of slide track bar;
Fig. 6 is the top view of slide track bar;
Fig. 7 is slide track bar side sectional view;
Fig. 8 is the structural representation of spicule replacement bar;
Fig. 9 is the structural representation of T-shaped swivel nut;
Labelling in figure: 1-slide track bar, nail clip outside the straight type of 2-, nail clip in the middle of the straight type of 3-, 4-spicule replacement bar, 5-spicule, 6-elongated slot, 7-reinforcement, 21-pressing plate seat, 22-pressing plate, 23-lock-screw, 24-T type swivel nut, 25-housing screw, 26-spicule hole.
Detailed description of the invention
it should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe this utility model in detail in conjunction with the embodiments.
As shown in Figures 1 to 4, a kind of monolateral exterior fixation bracket, comprises spicule 5 and support body, and described support body comprises nail clip 2 and the middle nail clip 3 of straight type outside slide track bar 1, straight type; Outside straight type, nail clip 2 and the middle nail clip 3 of straight type are fixed on slide track bar 1 by housing screw 23, and can slide up and down along slide track bar 1; Outside straight type, the bottom of nail clip 2 and the middle nail clip 3 of straight type is provided with 2 T-shaped swivel nuts 24, middle part is provided with spicule hole 26, top is provided with pressing plate 22, and pressing plate 22 is connected with pressing plate seat 21 by lock-screw 23, and housing screw 25 and lock-screw 23 all match with T-shaped swivel nut 24.Monolateral exterior fixation bracket also comprises spicule replacement bar 4, and the structure of spicule replacement bar 4 as shown in Figure 8.The material of support body is fiber reinforcement type polyether-ether-ketone (PEEK), and T-shaped swivel nut is made up of TC4 material.
Fig. 5 to Fig. 7 is the structural representation of slide track bar 1, and slide track bar 1 is U-shaped, and be provided with elongated slot 6 in the middle of U-shaped bottom, U-shaped bottom is also provided with reinforcement 7, and slide track bar 1 is provided with scale.
This utility model structure is simple, easily operates, and outside straight type, the bottom of nail clip 2 and the middle nail clip 3 of straight type is provided with T-shaped swivel nut 24, as shown in Figure 9, makes stressed member that fracture be less likely to occur.Basis is novel has inlayed into T-shaped swivel nut 24 in PEEK material, play and prevent revolving effect, in T-shaped swivel nut 24, there is helicitic texture, it is made for TC4 material, like this, when screwing lock-screw 23 or housing screw 25, pulling force is just delivered to the T-shaped square bottom surface of swivel nut 24 by helicitic texture and acts on seat surface, prevents the original direct thread that the screw thread that PEEK material directly makes causes due to insufficient strength to burst apart; Slide track bar 1 is provided with reinforcement 7 for U-shaped bottom, enhances its integral rigidity; Arrange 2 T-shaped swivel nuts 24, outside the middle nail clip 2 of straight type and straight type, nail clip 3 is sliding into reinforcement 7, has namely blocked housing screw 25 and has been connected with T-shaped swivel nut 25 at a place, can change like this to another place.
When using outermost two spicule holes 26 to fix two spicules 5 in performing the operation (span is maximum), because pressing plate 22 and pressing plate seat 21 are all that PEEK material is made, flexural deformation problem is there is in lock-screw 23 screwing operations, at this moment spicule replacement bar can be placed in middle spicule hole 26, span is reduced, obviously improves the rigidity of total.A rule is followed in the placement of spicule 5 and spicule replacement bar 4: be exactly that the zone line that formed of guarantee two lock-screws 23 has two spicule holes 26, all will there be spicule 5 or spicule replacement bar 4 in each spicule hole 26 of two side areas.As shown in Figure 3, be provided with 5 spicule holes, from left to right number consecutively is (1), (2), (3), (4), (5), needs to use spicule replacement bar when implanting two pieces of spicules 5 in operation, substantially three kinds of situations are had: when spicule is placed on 1,5, in replacement bar suggestion placement 3 hole; When spicule be placed on 1,2(or 3,4) hole time, replacement bar suggestion is placed in 5 holes; When spicule be placed on 5,2(or 3,4) hole time, replacement bar suggestion is placed in 1 hole, does not just need spicule replacement bar when Operation three pieces of spicules.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a monolateral exterior fixation bracket, comprises spicule and support body, it is characterized in that: described support body comprises nail clip and the middle nail clip of straight type outside slide track bar, straight type; Outside straight type, nail clip and the middle nail clip of straight type are fixed on slide track bar by housing screw, and can slide up and down along slide track bar; Outside straight type, the bottom of nail clip and the middle nail clip of straight type is provided with T-shaped swivel nut, and middle part is provided with spicule hole, and top is provided with pressing plate, and pressing plate is connected with pressing plate seat by lock-screw, and housing screw and lock-screw all match with T-shaped swivel nut.
2. monolateral exterior fixation bracket according to claim 1, is characterized in that: described slide track bar is U-shaped, and be provided with elongated slot in the middle of U-shaped bottom, U-shaped bottom is also provided with reinforcement.
3. monolateral exterior fixation bracket according to claim 2, is characterized in that: described slide track bar is provided with scale.
4. monolateral exterior fixation bracket according to claim 1, is characterized in that: described T-shaped swivel nut has 2.
5. monolateral exterior fixation bracket according to claim 1, is characterized in that: described spicule hole has 5.
6. monolateral exterior fixation bracket according to claim 1, is characterized in that: described monolateral exterior fixation bracket also comprises spicule replacement bar.
7. the monolateral exterior fixation bracket according to any one of claim 1 to 6, is characterized in that: the material of described support body is fiber reinforcement type polyether-ether-ketone.
8. the monolateral exterior fixation bracket according to any one of claim 1 to 6, is characterized in that: described T-shaped swivel nut is made up of TC4 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398519.5U CN204072288U (en) | 2014-07-18 | 2014-07-18 | A kind of monolateral exterior fixation bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398519.5U CN204072288U (en) | 2014-07-18 | 2014-07-18 | A kind of monolateral exterior fixation bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204072288U true CN204072288U (en) | 2015-01-07 |
Family
ID=52165060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420398519.5U Expired - Lifetime CN204072288U (en) | 2014-07-18 | 2014-07-18 | A kind of monolateral exterior fixation bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204072288U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539616A (en) * | 2015-09-17 | 2017-03-29 | 埃客(上海)医用设备有限公司 | Monolateral fracture cradle |
-
2014
- 2014-07-18 CN CN201420398519.5U patent/CN204072288U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539616A (en) * | 2015-09-17 | 2017-03-29 | 埃客(上海)医用设备有限公司 | Monolateral fracture cradle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150107 |