CN206044711U - A kind of double thread interlocking pressing type intramedullary pin - Google Patents
A kind of double thread interlocking pressing type intramedullary pin Download PDFInfo
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- CN206044711U CN206044711U CN201620633679.2U CN201620633679U CN206044711U CN 206044711 U CN206044711 U CN 206044711U CN 201620633679 U CN201620633679 U CN 201620633679U CN 206044711 U CN206044711 U CN 206044711U
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Abstract
This utility model is related to the structure-design technique field of intramedullary pin, and the pressing type intramedullary pin more particularly, it relates to a kind of double thread is interlocked, the intramedullary pin include：Mutually form the leading portion nail and back segment nail of angle, be arranged on back segment nail the first installing hole of sidepiece, the first screw being arranged in the first installing hole and the second screw, the first installing hole section is Pear-Shaped, the first screw includes：First main body, along the first axially arranged cell body of the first main body and the second cell body, the first arc-shaped gear being arranged between the first cell body and the second cell body, the second arc-shaped gear for being arranged on the first body front part；Second screw includes：External thread section and ailhead section, external thread section and the first arc-shaped gear, the matching of the second arc-shaped gear, ailhead section sidepiece and the matching of the second cell body.The structure design of double thread interlocking pressing type intramedullary pin of the present utility model is relatively reasonable, and chain pressurization locking, convenient and practical, suitable further genralrlization application can be realized to intramedullary pin.
Description
Technical field
This utility model is related to the structure-design technique field of intramedullary pin, more particularly, it relates to a kind of double thread interlocking
Pressing type intramedullary pin.
Background technology
Intramedullary pin is a kind of conventional Fracture internal fixaiion equipment, is generally used for metacarpal bone, radius, humerus, femur, tibia etc.
The interior fixation of long bone fracture.Intramedullary pin of the prior art includes two kinds, and one kind is that rivet nut is provided with through hole, another kind of to include rivet nut
With sealing cap, effect is：Rotation deformity of fracturing can be prevented, inner matter risk of breakage is reduced, is reduced destruction, the guarantor transported to periosteum blood
Stay somatomedin, the problem that intramedullary pin of the prior art is present is：Screw is undesirable to the locking effect of intramedullary pin, makes unavoidably
Produce deformity, affect healing into fracture.For the problems referred to above, it is this area to develop a kind of double thread interlocking pressing type intramedullary pin
Technical staff's technical problem urgently to be resolved hurrily.
Utility model content
Technical problem to be solved in the utility model is：It is to overcome the technical problem mentioned in above-mentioned background technology, existing
There is provided that a kind of structure design is relatively reasonable, convenient and practical double thread interlocking pressing type intramedullary pin.
This utility model solves the technical scheme adopted by its technical problem：In a kind of double thread interlocking pressing type marrow
Nail, the intramedullary pin include：The leading portion nail and back segment nail of angle is mutually formed, the first installing hole of back segment nail sidepiece is arranged on, is set
Put the first screw and the second screw in the first installing hole, the first installing hole section is Pear-Shaped, the first screw includes：
First main body, along the first axially arranged cell body of the first main body and the second cell body, be arranged between the first cell body and the second cell body
The first arc-shaped gear, be arranged on the second arc-shaped gear of the first body front part；Second screw includes：External thread section and ailhead section, outward
Thread segment and the first arc-shaped gear, the matching of the second arc-shaped gear, ailhead section sidepiece and the matching of the second cell body.
Further, the longitudinal section of the first cell body and the second cell body described in above-mentioned technical proposal is arc, the first cell body
With the second cell body dead in line, the first cell body length is 3-5 times of the second cell body length；Second arc-shaped gear is by front then deep
Degree is gradually reduced, and the first screw axial is provided with the first access holes.
Further, the nail of leading portion described in above-mentioned technical proposal and back segment are followed closely and are fixedly connected, and intramedullary pin is axially disposed the
Two access holes, back segment nail end are provided with sealing cap hole, and leading portion nail front portion is provided with the second installing hole and is matched with the second installing hole
Fixed nail.
Further, the first installing hole described in above-mentioned technical proposal is axially and back segment nail is axially formed angle, the first main body
Rear end is provided with flat recess, and ailhead section end is provided with inner hexagonal hole.
Beneficial effect：Compared with prior art, the structure design of double thread interlocking pressing type intramedullary pin of the present utility model
It is relatively reasonable, chain pressurization locking, convenient and practical, suitable further genralrlization application can be realized to intramedullary pin.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used needed for description of the prior art does and simply introduces, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, on the premise of work is not paid, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation after the 6, first screw 2 of fixed nail, the second screw 3 are removed in Fig. 1；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the structural representation of the first screw 2；
Fig. 5 is the structural representation of the second screw 3；
In figure, 1. back segment nail, 11. first installing holes, 2. the first screw, 20. first cell bodies, 21. second cell bodies, 22. the
One arc-shaped gear, 23. second arc-shaped gears, 3. the second screw, 30. external thread sections, 31. ailhead sections, 4. the second access holes, 5. sealing cap
Hole, 6. fixes nail.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated, shown embodiment is not to claim institute
The utility model content of record plays any restriction effect, also, the full content of the composition represented by example below is not limited to
Necessary to solution as the utility model described in claim.
Embodiment one
A kind of double thread interlocking pressing type intramedullary pin as shown in drawings, the intramedullary pin include：Before mutually forming angle
Duan Ding and back segment nail 1, the first installing hole 11 for being arranged on back segment 1 sidepiece of nail, the first screw 2 being arranged in the first installing hole 11
With the second screw 3,11 section of the first installing hole is Pear-Shaped, and the first screw 2 includes：First main body, along the first main body axle
To the first cell body 20 and the second cell body 21, the first arc-shaped gear being arranged between the first cell body 20 and the second cell body 21 that arrange
22nd, it is arranged on the second arc-shaped gear 23 of the first body front part；Second screw 3 includes：External thread section 30 and ailhead section 31, external screw thread
Section 30 and the first arc-shaped gear 22, the second arc-shaped gear 23 are matched, and 31 sidepiece of ailhead section and the second cell body 21 are matched；The first described peace
The cross sectional shape in dress hole 11 is the profile that two intersecting great circles and roundlet are formed, and 2 external diameter of the first screw is more than outside the second screw 3
The angle number of degrees that footpath, leading portion nail and back segment nail 1 are formed are determined according to the practical situation of different users, different mount points.
Embodiment two
The present embodiment is further describing on the basis of above-described embodiment one, described, and the first screw axial is provided with
The longitudinal section of the first access holes, the first cell body 20 and the second cell body 21 is arc, 21 axis of the first cell body 20 and the second cell body
Overlap, 20 length of the first cell body is 4 times of 21 length of the second cell body；Second arc-shaped gear 23 is gradually subtracted by front then depth
It is little.
Embodiment three
The present embodiment is further describing on the basis of above-described embodiment one or embodiment two, and the leading portion nail is with after
Section nail 1 is fixedly connected, and intramedullary pin is axially disposed the second access holes 4, and back segment is followed closely 1 end and is provided with sealing cap hole 5, before leading portion nail
The fixed nail 6 that portion is provided with the second installing hole and is matched with the second installing hole；First installing hole 11 is axially and back segment follows closely 1 axial shape
Into angle, the angle number of degrees are determined according to the practical situation of different users, different mount points；First body rear is arranged
There is flat recess, 31 end of ailhead section is provided with inner hexagonal hole.
In structure of the present utility model, the first installing hole 11 is designed as section, and for Pear-Shaped, (small one and large one, industry is interior again
Referred to as " 8 " word hole) structure, can facilitate and be implanted into two pieces of screws (the first screw 2 and the second screw 3) in the first installing hole 11,
During use, first the first screw 2 is screwed in the macropore of the first installing hole 11, the first arc-shaped gear 22 is made towards the first installing hole 11
Aperture, then the second screw 3 is screwed in the aperture of the first installing hole 11, make the second screw 3 and the first arc-shaped gear 22, the second arc
Tooth 23 is intermeshed, as the second screw 3 is screwed in bone and the second screw 3 is mutual with the first arc-shaped gear 22, the second arc-shaped gear 23
After engagement, the first screw 2 and the second screw 3 are installed, that is, the structure that section is Pear-Shaped is defined, with the first installing hole 11
Cross section Design is coincide, therefore, the power formation double thread that the second screw 3 can be produced to the first screw 2 vertically after the implantation is chain
Pressure effect, convenient and practical, suitable further genralrlization application.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use that this practicality is new
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (5)
1. a kind of double thread interlocking pressing type intramedullary pin, is characterized in that：The intramedullary pin includes：Mutually form angle leading portion nail and
Back segment nail, the first installing hole for being arranged on back segment nail sidepiece, the first screw being arranged in the first installing hole and the second screw, institute
The first installing hole section is stated for Pear-Shaped, the first screw includes：First main body, along the first axially arranged cell body of the first main body and
Second cell body, the first arc-shaped gear being arranged between the first cell body and the second cell body, the second arc for being arranged on the first body front part
Shape tooth；Second screw includes：External thread section and ailhead section, external thread section and the first arc-shaped gear, the matching of the second arc-shaped gear, ailhead section
Sidepiece and the matching of the second cell body.
2. a kind of double thread interlocking pressing type intramedullary pin according to claim 1, is characterized in that：First cell body and
The longitudinal section of two cell bodies is arc, the first cell body and the second cell body dead in line, and the first cell body length is the second cell body length
3-5 times.
3. a kind of double thread interlocking pressing type intramedullary pin according to claim 1, is characterized in that：Second arc-shaped gear by
Front then depth is gradually reduced.
4. a kind of double thread interlocking pressing type intramedullary pin according to claim 1, is characterized in that：The leading portion nail and back segment
Nail is fixedly connected, and intramedullary pin is axially disposed the second access holes, and back segment nail end is provided with sealing cap hole, and leading portion nail is anterior to be arranged
The fixed nail for having the second installing hole and matching with the second installing hole.
5. a kind of double thread interlocking pressing type intramedullary pin according to claim 1, is characterized in that：Described first installs hole axle
Angle is axially formed to back segment nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633679.2U CN206044711U (en) | 2016-06-24 | 2016-06-24 | A kind of double thread interlocking pressing type intramedullary pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633679.2U CN206044711U (en) | 2016-06-24 | 2016-06-24 | A kind of double thread interlocking pressing type intramedullary pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206044711U true CN206044711U (en) | 2017-03-29 |
Family
ID=58371900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620633679.2U Active CN206044711U (en) | 2016-06-24 | 2016-06-24 | A kind of double thread interlocking pressing type intramedullary pin |
Country Status (1)
| Country | Link |
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| CN (1) | CN206044711U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107115141A (en) * | 2017-07-14 | 2017-09-01 | 成都贝施美医疗设备有限公司 | A kind of telescopic near end of thighbone attachment means |
| CN107126250A (en) * | 2017-06-01 | 2017-09-05 | 成都贝施美医疗设备有限公司 | A kind of radial type near end of thighbone bindiny mechanism |
| CN107198563A (en) * | 2017-06-01 | 2017-09-26 | 成都贝施美生物科技有限公司 | A kind of fractured near end of thighbone connector |
-
2016
- 2016-06-24 CN CN201620633679.2U patent/CN206044711U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126250A (en) * | 2017-06-01 | 2017-09-05 | 成都贝施美医疗设备有限公司 | A kind of radial type near end of thighbone bindiny mechanism |
| CN107198563A (en) * | 2017-06-01 | 2017-09-26 | 成都贝施美生物科技有限公司 | A kind of fractured near end of thighbone connector |
| CN107115141A (en) * | 2017-07-14 | 2017-09-01 | 成都贝施美医疗设备有限公司 | A kind of telescopic near end of thighbone attachment means |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 Changzhou, Jiangsu new North District, Jinsha River Road, No. 10 Patentee after: Dean medical technology Ltd Address before: 213000 Changzhou, Jiangsu new North District, Jinsha River Road, No. 10 Patentee before: Changzhou Dean Medical Machinery Co., Ltd. |