CN205947846U - Extender in rotary -type limbs marrow of machinery - Google Patents
Extender in rotary -type limbs marrow of machinery Download PDFInfo
- Publication number
- CN205947846U CN205947846U CN201620701207.6U CN201620701207U CN205947846U CN 205947846 U CN205947846 U CN 205947846U CN 201620701207 U CN201620701207 U CN 201620701207U CN 205947846 U CN205947846 U CN 205947846U
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- CN
- China
- Prior art keywords
- intramedullary nail
- left end
- intramedullary pin
- intramedullary
- hand member
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Abstract
The utility model discloses an extender in rotary -type limbs marrow of machinery, including intramedullary nail left end, spring, intramedullary nail right -hand member and intramedullary nail body, the intramedullary nail body comprises intramedullary nail left end and intramedullary nail right -hand member, and the tail end of intramedullary nail right -hand member is located the inside of the front end of intramedullary nail left end, the tail end of intramedullary nail left end is equipped with lock nail hole, and the inside of the front end of intramedullary nail left end is equipped with gland nut, gland nut's front end is equipped with the spring, and the intermediate position department of spring installs first rotatory piece and the rotatory piece of second, the one end that gland nut was kept away from to the spring is located the inside of the tail end of intramedullary nail right -hand member. The utility model discloses a design of machinery sleeve rotation type can lean on that patient's joint activity is rotatory to be driven an inside ware that leads and lead and open, need not to adjust through external fixator, has reduced the number of times of operation, has practiced thrift therapeutical cost, should design the limbs extension of mainly used thighbone, shin bone.
Description
Technical field
This utility model is related to medical apparatus and instruments technical field, extends in specially a kind of mechanical rotary-type limbs marrow
Device.
Background technology
Traditional limb lengthening mainly takes ring external fixation support, easily cause nerve and blood vessel injury, pin track infection,
Screw way loosens, follows closely point pain and form cicatrix.It is also subjected to larger society and stress using the sufferers themselves of support arm；Ring
The method that shape external fixer combines normal intramedullary pin, this technology can shorten the use time of support arm, be easy in patient's stretching later stage
Removed, promote patient articular's activity simultaneously to improve stationarity, effectively reduce the incidence rate of fracture, it is to avoid outside life-time service
The related complication that frame occurs, but must be adjusted by exterior fixation bracket during extending, and need Repeated Operation, increase
Treatment cost.
Content of the invention
The purpose of this utility model is to provide a kind of mechanical rotary-type limbs intramedullary lengtheing nail, to solve above-mentioned background skill
The problem proposing in art.
For achieving the above object, this utility model provides following technical scheme：Extend in a kind of mechanical rotary-type limbs marrow
Device, including intramedullary pin left end, spring, intramedullary pin right-hand member and intramedullary pin body, described intramedullary pin body is by intramedullary pin left end and marrow
Interior nail right-hand member is constituted, and the tail end of intramedullary pin right-hand member is located at the inside of the front end of intramedullary pin left end, the tail of described intramedullary pin left end
End is provided with locking nail hole, and the inside of the front end of intramedullary pin left end is provided with clamp nut, and the front end of described clamp nut is provided with spring, bullet
The middle position of spring is provided with the first spill spin block and the second spill spin block, and described spring is located in marrow away from one end of clamp nut
The inside of the tail end of nail right-hand member.
Preferably, the front end of described intramedullary pin left end is provided with protective jacket.
Preferably, described first spill spin block and the second spill spin block are all located at the inside of intramedullary pin left end, and the second spill spin block
Outside positioned at the first spill spin block.
Preferably, described second spill spin block is provided with reciprocal latch structure.
Compared with prior art, the beneficial effects of the utility model are：This equipment adopts mechanical sleeves swiveling design, can
Internal Distraction Apparatus stretching is rotarily driven with the joint motion by patient, need not be adjusted by exterior fixation bracket, decrease operation
Number of times, has saved treatment cost, and this is designed primarily for the limb lengthening of femur, tibia.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is internal structure schematic diagram of the present utility model.
In figure：1- intramedullary pin left end；2- clamp nut；3- spring；4- first spill spin block；5- second spill spin block；In 6- marrow
Nail right-hand member；7- locking nail hole；8- intramedullary pin body.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Refer to Fig. 1 and Fig. 2, a kind of embodiment that this utility model provides：Extend in a kind of mechanical rotary-type limbs marrow
Device, including intramedullary pin left end 1, spring 3, intramedullary pin right-hand member 6 and intramedullary pin body 8, intramedullary pin body 8 is by intramedullary pin left end 1 He
Intramedullary pin right-hand member 6 is constituted, and the tail end of intramedullary pin right-hand member 6 is located at the inside of the front end of intramedullary pin left end 1, intramedullary pin left end 1
Front end is provided with protective jacket, and the tail end of intramedullary pin left end 1 is provided with locking nail hole 7, and the inside of the front end of intramedullary pin left end 1 is provided with compression
Nut 2, the front end of clamp nut 2 is provided with spring 3, and the middle position of spring 3 is provided with the first spill spin block 4 and the second spill spin block
5, the first spill spin block 4 and the second spill spin block 5 are all located at the inside of intramedullary pin left end 1, and the second spill spin block 5 is located at the first spill spin block
4 outside, the second spill spin block 5 is provided with reciprocal latch structure, spring 3 away from clamp nut 2 one end be located at intramedullary pin right-hand member 6 tail
The inside at end.
Operation principle：During use, using mechanical sleeves swiveling design, belong to full-implantation type extender, be by patient
Joint motion rotarily drives internal Distraction Apparatus stretching, and in the presence of spill spin block, achievable one direction extends intramedullary pin right-hand member 6,
And limited by spring 3 and clamp nut 2, when external force acts on intramedullary pin body 8, spill spin block rotates, thus can
Intramedullary pin right-hand member 6 one direction is made to extend.Limb lengthening, is on the basis of long bone of limbs osteotomy, daily slow stretching limbs, can
Realize Limb lengthening.At present, realizing limb lengthening apparatus is usually external fixator, with Ilizarov external fixator as representative.But,
Be fixed on outward prolongation limbs, have the shortcomings that certain, such as pin site infection, wear external fixator overlong time, be unfavorable for limb function
Exercise, life inconvenience etc..Rotary-type limbs intramedullary lengtheing nail, during limb lengthening, it is to avoid the shortcoming of outer fixation, prolongs
Long limbs are relatively easy, decrease the misery of patient, the patient of the increase comfortableness in limb lengthening.In limb lengthening,
Cleverly twist suffering limb, you can realize limb lengthening, extend simple.This invention device, in terms of limb lengthening, projects its advantage.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as limiting
Involved claim.
Claims (4)
1. a kind of mechanical rotary-type limbs intramedullary lengtheing nail it is characterised in that：Including in intramedullary pin left end (1), spring (3), marrow
Nail right-hand member (6) and intramedullary pin body (8), intramedullary pin body (8) is made up of intramedullary pin left end (1) and intramedullary pin right-hand member (6), and marrow
The tail end of interior nail right-hand member (6) is located at the inside of the front end of intramedullary pin left end (1), and the tail end of intramedullary pin left end (1) is provided with locking nail hole
(7), the inside of the front end of intramedullary pin left end (1) is provided with clamp nut (2), and the front end of clamp nut (2) is provided with spring (3), bullet
The middle position of spring (3) is provided with the first spill spin block (4) and the second spill spin block (5), and spring (3) is away from clamp nut (2)
One end is located at the inside of the tail end of intramedullary pin right-hand member (6).
2. the mechanical rotary-type limbs intramedullary lengtheing nail of one kind according to claim 1 it is characterised in that：Described intramedullary pin is left
The front end at end (1) is provided with protective jacket.
3. the mechanical rotary-type limbs intramedullary lengtheing nail of one kind according to claim 1 it is characterised in that：Described first rotation
Block (4) and the second spill spin block (5) are all located at the inside of intramedullary pin left end (1), and the second spill spin block (5) is located at the first spill spin block
(4) outside.
4. the mechanical rotary-type limbs intramedullary lengtheing nail of one kind according to claim 1 it is characterised in that：Described second rotation
Block (5) is provided with reciprocal latch structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620701207.6U CN205947846U (en) | 2016-06-30 | 2016-06-30 | Extender in rotary -type limbs marrow of machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620701207.6U CN205947846U (en) | 2016-06-30 | 2016-06-30 | Extender in rotary -type limbs marrow of machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205947846U true CN205947846U (en) | 2017-02-15 |
Family
ID=57969211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620701207.6U Expired - Fee Related CN205947846U (en) | 2016-06-30 | 2016-06-30 | Extender in rotary -type limbs marrow of machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205947846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974809A (en) * | 2021-12-15 | 2022-01-28 | 河北医科大学第三医院 | Tibia intramedullary nail |
-
2016
- 2016-06-30 CN CN201620701207.6U patent/CN205947846U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974809A (en) * | 2021-12-15 | 2022-01-28 | 河北医科大学第三医院 | Tibia intramedullary nail |
| CN113974809B (en) * | 2021-12-15 | 2023-07-18 | 河北医科大学第三医院 | Tibia intramedullary nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170215 Termination date: 20200630 |