CN206434403U - bone retractor - Google Patents
bone retractor Download PDFInfo
- Publication number
- CN206434403U CN206434403U CN201621181318.5U CN201621181318U CN206434403U CN 206434403 U CN206434403 U CN 206434403U CN 201621181318 U CN201621181318 U CN 201621181318U CN 206434403 U CN206434403 U CN 206434403U
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- pull needle
- screw
- connecting portion
- fixing groove
- neck
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Abstract
Bone retractor of the present utility model, is used cooperatively with pull needle, including bow arm and two connecting portions for being arranged on bow arm two ends, and two connecting portions are symmetrical arranged, and the two ends of pull needle are separately fixed on two connecting portions.It is common that pull needle is spacing and fixed using the arc groove of screw and pull needle neck, the pull needle of various outer diameter specification can be used in a structure, use is more convenient.Bow arm and connecting portion are structure as a whole.So, whole bone is integral type with retractor, more convenient compared with assembly type product.It is makrolon or acrylic material to bend arm and connecting portion, bone can be made to be made of one structure with retractor, and can be used as disposable products.
Description
Technical field
The utility model is related to a kind of bone retractor.
Background technology
When fracture occurs, it occur frequently that fracture site misplaces, needed during treatment with tractor by the bone of dislocation progressively
Draw to its normal physiological location.
Conventional tractor generally comprises a traction bow and one wears in nail, distraction procedure, and bone is horizontally through with nail is worn
Folding distal end is entered to follow closely after bone tissue, be connected with traction bow with wearing nail, by bending arm reinforcing, makes broken bone broken ends of fractured bone pairing multiple
Position, wait heal or internal fixation operation after remove tractor again.
Existing tractor, for different pull needles, need to change corresponding tractor, otherwise can go out in use
The bad phenomenon that existing pull needle is slipped.In use, needing to choose corresponding tractor, use is not convenient.
Utility model content
The technical problems to be solved in the utility model is：In order to overcome pull needle one-to-one not with tractor model
Foot, the utility model provides a kind of bone retractor.
The utility model solves the technical scheme that its technical problem used：A kind of bone retractor, matches somebody with somebody with pull needle
Conjunction is used, including bow arm and two connecting portions for being arranged on bow arm two ends, and two connecting portions are symmetrical arranged, the pull needle
Two ends are separately fixed on two connecting portions.
The connecting portion includes screw, pull needle neck, screw mounting hole and fixing groove, and the pull needle neck is from connection
The end face in portion extends to the fixed groove bottom, and the part that pull needle neck is located on fixing groove bottom surface is arc groove,
Pull needle is arranged in arc groove.
The screw mounting hole and fixing groove are sequentially coaxially set from inside to outside, and screw mounting hole is located at pull needle neck
Side, the internal diameter of the internal diameter ＞ screw mounting holes of fixing groove, screw from fixing groove through stretching in screw mounting hole, and with
Screw mounting hole is fixed, and the screw includes head and bar portion, the head outer diameter ＞ bar portion external diameters, and the head, which is located at, to be fixed
In groove, the bar portion is located in screw mounting hole；Pull needle is mutually perpendicular to screw, pull needle neck from connection end surface to
The direction of fixed groove bottom extension is tilted relative to the screw, and the pull needle is spacing by the head of screw and arc groove
And it is fixed.
The bow arm is arch, and two connecting portions are symmetrical arranged relative to bow arm.
The bow arm and connecting portion are structure as a whole.So, whole bone is integral type with retractor, compared with assembly type product more
Plus it is convenient.
The material of the bow arm and connecting portion is makrolon or acrylic material.Bone can be made to be made of one with retractor
Structure, and can be used as disposable products.
The axial direction from connection end surface to the direction of fixed groove bottom extension and the screw of the pull needle neck is pressed from both sides
Angle α is 70 ° ± 20 '.I.e. the angle of the angle of inclination of pull needle neck and screw is in corresponding relation, in the process of mutual stress
In, it is ensured that the stress equalization of pull needle, and relative to other angles, when meeting angle α, pull needle contact with pull needle neck
Point is lower, and this causes the stability of pull needle more preferably, the bad phenomenon such as will not occur slipping in use.
The pull needle neck is on the axis direction of pull needle, only in the side opening towards another connecting portion.Exist
Side outwardly is shut by connecting portion, after pull needle is located in pull needle neck, is pulled the limit of pin neck both sides
Position, it is impossible to be shifted over axially.
The beneficial effects of the utility model are, bone retractor of the present utility model, namely bone tractor, with pull needle
Use cooperatively, it is common that pull needle is spacing and fixed using the arc groove of screw and pull needle neck, can be in a structure
The pull needle of upper use various outer diameter specification, use is more convenient.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Structural representation when Fig. 1 is bone retractor of the present utility model non-mounting screw.
Another viewing angle constructions schematic diagram when Fig. 2 is bone retractor of the present utility model non-mounting screw.
Fig. 3 is that bone retractor of the present utility model installs the structural representation after pull needle.
Fig. 4 is that bone retractor of the present utility model installs the partial cutaway schematic after pull needle.
Fig. 5 is the connecting portion and the structural representation of pull needle cooperation of bone retractor of the present utility model.
Fig. 6 is the connecting portion and the structural representation of another specification pull needle cooperation of bone retractor of the present utility model.
Fig. 7 is the connecting portion and the structural representation of another specification pull needle cooperation of bone retractor of the present utility model.
1, pull needle in figure, 2, bow arm, 3, connecting portion, 31, screw, 311, head, 312, bar portion, 32, pull needle card
Groove, 321, arc groove, 33, screw mounting hole, 34, fixing groove.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", " interior ", " outer ", " far
From " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description this reality
Described with new with simplified, rather than indicate or imply that the device or element of meaning must be with specific orientation, with specific
Azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
As Figure 1-4, a kind of bone retractor, is used cooperatively with pull needle 1, including bow arm 2 and two be arranged on bow
The connecting portion 3 at the two ends of arm 2, and two connecting portions 3 are symmetrical arranged, the two ends of the pull needle 1 are separately fixed at two connecting portions 3
On.Preferably, the bow arm 2 is arch, two connecting portions 3 are symmetrical arranged relative to bow arm 2.
The connecting portion 3 includes screw 31, pull needle neck 32, screw mounting hole 33 and fixing groove 34, the pull needle
The end face of neck 32 from connecting portion 3 extends to the bottom surface of fixing groove 34, and pull needle neck 32 is located at the bottom surface of fixing groove 34
On part be arc groove 321, pull needle 1 be arranged on arc groove 321 in.Wherein, screw mounting hole 33 can be blind hole,
It can also be through hole；Fixing groove 34 is through hole, and one end of fixing groove 34 is connected with the one side of connecting portion 3, and fixing groove 34 is another
End is connected with screw mounting hole 33, and the side of fixing groove 34 is connected with pull needle neck 32, and fixing groove 34 and pull needle neck
32 intersect, and arc groove 321 is to be formed after pull needle neck 32 intersects with fixing groove 34.
The screw mounting hole 33 and fixing groove 34 are sequentially coaxially set from inside to outside, and screw mounting hole 33 is located at traction
The side of pin neck 32, the internal diameter of the internal diameter ＞ screw mounting holes 33 of fixing groove 34, screw 31 is passed through from fixing groove 34 and stretched to
In screw mounting hole 33, and fixed with screw mounting hole 33, the screw 31 includes head 311 and bar portion 312, the head
The external diameter of 311 external diameter ＞ bar portions 312, the head 311 is located in fixing groove 34, and the bar portion 312 is located in screw mounting hole 33；
Pull needle 1 is mutually perpendicular to screw 31, the direction phase extended from the end face of connecting portion 3 to the bottom surface of fixing groove 34 of pull needle neck 32
Tilted for the screw 31, the pull needle 1 is spacing and fixed by the head 311 of screw 31 and arc groove 321.
The bow arm 2 and connecting portion 3 are structure as a whole.So, whole bone is integral type with retractor, compared with assembly type product
It is more convenient.
The material of the bow arm 2 and connecting portion 3 is makrolon or acrylic material.Bone can be made to make one with retractor
Body structure, and can be used as disposable products.
The direction extended from the end face of connecting portion 3 to the bottom surface of fixing groove 34 of the pull needle neck 32 and the screw 31
Axial angle α is 70 ° ± 20 '.I.e. the angle of the angle of inclination of pull needle neck 32 and screw 31 is in corresponding relation, mutually by
During power, it is ensured that the stress equalization of pull needle 1, and relative to other angles, when meeting angle α, pull needle 1 and pull needle
The contact point of neck 32 is lower, and this causes the stability of pull needle 1 more preferably, will not occur slipping in use etc. bad existing
As.
The pull needle neck 32 is on the axis direction of pull needle 1, only in the side opening towards another connecting portion 3.
Side i.e. outwardly is shut by connecting portion 3, after pull needle 1 is located in pull needle neck 32, is pulled pin neck
32 both sides it is spacing, it is impossible to axially be shifted over.In embodiment as depicted, pull needle neck 32 only with connecting portion 3
Two adjacent sides connect.
Bone retractor of the present utility model, namely bone tractor, are used cooperatively with pull needle 1, using screw 31 with
The arc groove 321 of pull needle neck 32 is common spacing and fixed by pull needle 1, and various outer diameter can be used in a structure
The pull needle 1 of specification, use is more convenient.As illustrated in figs. 5-7, respectively external diameter φ 4mm, 3.5mm and 3.0mm pull needle with
The structural representation that connecting portion 3 coordinates, for the pull needle 1 of different size, connecting portion 3 of the present utility model can be applicable.
Bone of the present utility model is directly to draw bone by round needle with retractor, so that fracture, dislocation patient are carried out
It is effective to reset and fixed, injured limb can be enable to rest and fix, prevention and correction deformity are easy to the open surface of a wound
Observation and processing.Suitable for adult lower limb unstable fracture person, pelvic ring (ring after main finger) fracture and displacement person completely learn
Age children femoral unstable fracture person, Elbow in Children fracture (condyles) can not reset immediately and need to draw it is lower observation, detumescence with
Maintain contraposition person, the short and small cannon born fracture person that skin traction can not be implemented, such as metacarpal bone, phalanges, acetabular bone central dislocation, dislocation
Severe patient, and other need traction therapeutic and are unsuitable for skin traction person.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (6)
1. a kind of bone retractor, is used cooperatively with pull needle (1), it is characterised in that：Bow is arranged on including bow arm (2) and two
The connecting portion (3) at arm (2) two ends, and two connecting portions (3) are symmetrical arranged, the two ends of the pull needle (1) are separately fixed at two
On individual connecting portion (3)；
The connecting portion (3) includes screw (31), pull needle neck (32), screw mounting hole (33) and fixing groove (34), described
The end face of pull needle neck (32) from connecting portion (3) extends to the fixing groove (34) bottom surface, and pull needle neck (32) position
It is arc groove (321) in the part on fixing groove (34) bottom surface, pull needle (1) is arranged in arc groove (321)；
The screw mounting hole (33) and fixing groove (34) are sequentially coaxially set from inside to outside, and screw mounting hole (33) be located at lead
The side of draw pin neck (32), the internal diameter of the internal diameter ＞ screw mounting holes (33) of fixing groove (34), screw (31) is from fixing groove
(34) interior through screw mounting hole (33) is stretched to and fixed with screw mounting hole (33), the screw (31) includes head
(311) and bar portion (312), head (311) external diameter ＞ bar portions (312) external diameter, the head (311) is located at fixing groove (34)
Interior, the bar portion (312) is located in screw mounting hole (33)；Pull needle (1) is mutually perpendicular to screw (31), pull needle neck
(32) the direction extended from connecting portion (3) end face to fixing groove (34) bottom surface is tilted relative to the screw (31), described to lead
Draw pin (1) is spacing and fixed by the head (311) of screw (31) and arc groove (321).
2. bone retractor as claimed in claim 1, it is characterised in that：The bow arm (2) is arch, two connecting portions (3)
It is symmetrical arranged relative to bow arm (2).
3. bone retractor as claimed in claim 1, it is characterised in that：The bow arm (2) and connecting portion (3) are integrated knot
Structure.
4. bone retractor as claimed in claim 3, it is characterised in that：The material of the bow arm (2) and connecting portion (3) is poly-
Carbonic ester or acrylic material.
5. bone retractor as claimed in claim 1, it is characterised in that：The pull needle neck (32) from connecting portion (3)
The axial angle α of the direction that end face extends to fixing groove (34) bottom surface and the screw (31) is 70 ° ± 20 '.
6. bone retractor as claimed in claim 1, it is characterised in that：The pull needle neck (32) is in pull needle (1)
On axis direction, only in the side opening towards another connecting portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621181318.5U CN206434403U (en) | 2016-10-27 | 2016-10-27 | bone retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621181318.5U CN206434403U (en) | 2016-10-27 | 2016-10-27 | bone retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206434403U true CN206434403U (en) | 2017-08-25 |
Family
ID=59645544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621181318.5U Active CN206434403U (en) | 2016-10-27 | 2016-10-27 | bone retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206434403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11534152B2 (en) | 2020-07-10 | 2022-12-27 | Retractortho, Inc. | Stabilizing retractor system for distal radius fracture repair |
-
2016
- 2016-10-27 CN CN201621181318.5U patent/CN206434403U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11534152B2 (en) | 2020-07-10 | 2022-12-27 | Retractortho, Inc. | Stabilizing retractor system for distal radius fracture repair |
| US11583268B2 (en) | 2020-07-10 | 2023-02-21 | Retractortho, Inc. | Radiolucent, 3-D printed soft tissue retractor |
| US11779323B2 (en) | 2020-07-10 | 2023-10-10 | Retractortho, Inc. | Single use radiolucent stabilizing retractor system |
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