CN209220471U - The embedded sliding thorn type bone nail of one kind - Google Patents
The embedded sliding thorn type bone nail of one kind Download PDFInfo
- Publication number
- CN209220471U CN209220471U CN201821463446.8U CN201821463446U CN209220471U CN 209220471 U CN209220471 U CN 209220471U CN 201821463446 U CN201821463446 U CN 201821463446U CN 209220471 U CN209220471 U CN 209220471U
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- China
- Prior art keywords
- bone nail
- cap
- bone
- interior bar
- outer tube
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Abstract
The utility model discloses a kind of embedded sliding thorn type bone nail, including bone nail, bone nail outer tube, bone nail interior bar, the cap wall of bone nail cap is threadedly coupled with bone nail outer tube upper end, the center of the crown of bone nail cap is equipped with through-hole, the bone nail outer tube is equipped with tip, limited block is equipped with close to one end of tip in bone nail outer tube wall, the bone nail interior bar is contained in the chamber of bone nail outer tube formation, limiting slot is equipped in one end that bone nail interior bar is directed toward tip, the limiting slot is slidably connected with limited block, the through-hole that the other end of bone nail interior bar passes through bone nail cap is slidably connected with bone nail cap, bone nail interior bar is being located at crown upper limb equipped with upper pole cap, lower pole cap is equipped with being located at crown lower edge, bone nail is equipped on the bar wall of bone nail interior bar to pierce, the acanthopore to match with bone nail thorn is equipped on the tube wall of bone nail outer tube.The utility model is sturdy and durable, and structure is simple, easy to disassemble to diaphysis without dissection when use, is conducive to the faster rehabilitation of patient.
Description
Technical field
The utility model relates to medical instruments fields, and in particular to the embedded sliding thorn type bone nail of one kind.
Background technique
In bone surgery, especially spinal operation uses pedicle nail often to fix, and bone nail screw thread used is logical
It is arranged frequently with full step, front end uses single thread, and rear end uses double thread；Bone nail is time-consuming and laborious when being screwed into, screw thread pair
The shear action of diaphysis is big, and diaphysis is be easy to cause to damage, and causes post-operative recovery slow.
The document of Patent No. 201720167814.3 discloses a kind of dark line bone nail, and the dark line bone nail is for existing
Deficiency in technology designs socket joint type bone nail bar, using chamber sliding in slidingtype and sliding sting cooperation, realizes bone nail dark line formula nail
Thorn, the technical solution are circumferentially with multiple interior sliding chambers in bone nail interior bar circle, by rotation bone nail interior bar to drive sliding sting to exist
Interior sliding chamber, which moves back and forth, stretches out or withdraws to alleviate bone nail to the shear action of diaphysis, and fixed damage reduces, and is conducive to suffer from
Person's post-operative recovery.
Although the patent plays above-mentioned beneficial effect, following problems are still remained: 1, due to by interior sliding chamber
It is arranged in bone nail interior bar, causes the structure of bone nail interior bar uneven, in the case where stress, especially for thinner bone
Follow closely interior bar, it is easy to it fractures when turning, once fractureing, sliding sting can not be withdrawn, or sliding sting can not stretch out,
It will make bone nail that can not fix, or can not be removed in the dismounting of bone nail；It 2, is seperated with bone nail interior bar due to sliding sting
, in the case where such small structure, manufacturing process can be more complicated, or even is difficult to realize.
Summary of the invention
In order to overcome the deficiencies of the prior art, the utility model discloses the embedded sliding thorn type bone nails of one kind.
To achieve the above object, the technical solution of the utility model is:
The embedded sliding thorn type bone nail of one kind, including bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3, the cap of the bone nail cap 1
Wall 101 is threadedly coupled with 2 upper end of bone nail outer tube, and the center of the crown 102 of bone nail cap 1 is equipped with through-hole, the bone nail
Outer tube 2 is equipped with tip 201, is equipped with limited block 203, the bone nail interior bar close to one end of tip 201 in 2 inner wall of bone nail outer tube
3 are contained in the chamber of the formation of bone nail outer tube 2, are equipped with limiting slot 302 in one end that bone nail interior bar 3 is directed toward tip 201, described
Limiting slot 302 is slidably connected with limited block 203, and the other end of bone nail interior bar 3 passes through the through-hole of bone nail cap 1 and bone nail cap 1 slides
Connection, bone nail interior bar 3 are being located at 102 upper limb of crown equipped with upper pole cap 304, are equipped with lower pole cap being located at 102 lower edge of crown
305, it is equipped with bone nail thorn 301 on the bar wall 303 of bone nail interior bar 3, is equipped on the tube wall 202 of bone nail outer tube 2 and bone nail thorn 301
The acanthopore 204 of matching.
Preferably, the periphery of the crown 102 of the bone nail cap 1 is hexagon.
Preferably, the limiting slot 302 is 2, and has the limited block 203 of 2 matchings.
Preferably, the inner wall of the acanthopore 204 tilts obliquely upward.
Preferably, the number of the acanthopore 204 is identical as bone nail thorn 301.
Preferably, the bone nail thorn 301 is triangle slab organization.
Preferably, the bone nail thorn 301 is trigonal pyramidal structure.
Preferably, the bone nail thorn 301 is conical structure.
Preferably, the bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3 are that titanium alloy is made.
Preferably, the titanium alloy is 6 aluminium of titanium, 4 vanadium.
Beneficial effect
A kind of beneficial effect of embedded sliding thorn type bone nail of the utility model is divided into 4 parts:
1, the bone nail interior bar 3 of the utility model and bone nail thorn are integral structures, it is not necessary that interior sliding chamber is arranged in bone nail interior bar 3, from
And keep bone nail interior bar 3 sturdy and durable, reduce unnecessary accident risk.
2, the utility model structure is simple, is only made of bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3, simple process and low cost
It is honest and clean.
3, the utility model effectively alleviates the effect of bone nail cutting diaphysis, and it is very easy to operate, it is only necessary to utilize
Bone nail cap 1 pulls bone nail interior bar 3 back and forth, so that it may realize the stretching and withdrawal of bone nail thorn 301.
4, relative to above patent document, the bone nail interior bar 3 of the utility model is real in a manner of sliding up and down rather than horizontally rotate
The stretching and withdrawal for having showed bone nail thorn 301, keep bone nail interior bar 3 more durable.
Detailed description of the invention
A kind of Fig. 1: the front screenshot under embedded sliding thorn type bone nail bone nail thorn stretching state；
A kind of Fig. 2: the front screenshot under embedded sliding thorn type bone nail bone nail thorn retracted state；
1: bone nail cap, 2: bone nail outer tube；3: bone nail interior bar, 101: cap wall, 102: crown, 201: tip, 202: tube wall,
203: limited block, 204: acanthopore, 301: bone nail thorn, 302: limiting slot, 303: bar wall, 304: upper pole cap, 305: lower pole cap.
Specific embodiment
As described below, the only preferred embodiment of the utility model is not intended to limit the protection scope of the utility model, it is all
Made any modifications, equivalent replacements, and improvements etc., should be included in the protection of the utility model within the spirit and principle of the utility model
Within the scope of.
Embodiment 1:
The embedded sliding thorn type bone nail of one kind, including bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3, the cap of the bone nail cap 1
Wall 101 is threadedly coupled with 2 upper end of bone nail outer tube, and the center of the crown 102 of bone nail cap 1 is equipped with through-hole, the bone nail
Outer tube 2 is equipped with tip 201, is equipped with limited block 203, the bone nail interior bar close to one end of tip 201 in 2 inner wall of bone nail outer tube
3 are contained in the chamber of the formation of bone nail outer tube 2, are equipped with limiting slot 302 in one end that bone nail interior bar 3 is directed toward tip 201, described
Limiting slot 302 is slidably connected with limited block 203, and the other end of bone nail interior bar 3 passes through the through-hole of bone nail cap 1 and bone nail cap 1 slides
Connection, bone nail interior bar 3 are being located at 102 upper limb of crown equipped with upper pole cap 304, are equipped with lower pole cap being located at 102 lower edge of crown
305, it is equipped with bone nail thorn 301 on the bar wall 303 of bone nail interior bar 3, is equipped on the tube wall 202 of bone nail outer tube 2 and bone nail thorn 301
The acanthopore 204 of matching；
The periphery of the crown 102 of the bone nail cap 1 is hexagon；
The limiting slot 302 is 2, and has the limited block 203 of 2 matchings；
The inner wall of the acanthopore 204 tilts obliquely upward；
The number of the acanthopore 204 is identical as bone nail thorn 301；
The bone nail thorn 301 is triangle slab organization；
The excellent bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3 are that titanium alloy is made；
The titanium alloy is 6 aluminium of titanium, 4 vanadium.
Cap wall 101 is threadedly coupled with 2 upper end of bone nail outer tube, rotates bone nail cap 1, bone nail interior bar 3 can be driven to tip
201 or bone nail cap 1 direction it is mobile, when bone nail interior bar 3 is mobile to the direction of tip 201, bone nail thorn 301 is withdrawn, in pipe
Under the extruding of wall 202, it is close to 303 outside of bar wall, when bone nail interior bar 3 is mobile to the direction of bone nail cap 1, bone nail pierces 301 edges
The inner wall of acanthopore 204 skid off, the rotation of bone nail cap 1 to a certain extent when, bone nail thorn 301 is fully extended in outside tube wall 202, thus
Realize fixed function.
Embodiment 2:
The embedded sliding thorn type bone nail of one kind, including bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3, the cap of the bone nail cap 1
Wall 101 is threadedly coupled with 2 upper end of bone nail outer tube, and the center of the crown 102 of bone nail cap 1 is equipped with through-hole, the bone nail
Outer tube 2 is equipped with tip 201, is equipped with limited block 203, the bone nail interior bar close to one end of tip 201 in 2 inner wall of bone nail outer tube
3 are contained in the chamber of the formation of bone nail outer tube 2, are equipped with limiting slot 302 in one end that bone nail interior bar 3 is directed toward tip 201, described
Limiting slot 302 is slidably connected with limited block 203, and the other end of bone nail interior bar 3 passes through the through-hole of bone nail cap 1 and bone nail cap 1 slides
Connection, bone nail interior bar 3 are being located at 102 upper limb of crown equipped with upper pole cap 304, are equipped with lower pole cap being located at 102 lower edge of crown
305, it is equipped with bone nail thorn 301 on the bar wall 303 of bone nail interior bar 3, is equipped on the tube wall 202 of bone nail outer tube 2 and bone nail thorn 301
The acanthopore 204 of matching；
The bone nail thorn 301 is trigonal pyramidal structure；
The excellent bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3 are that titanium alloy is made.
The engaging of limited block 203 and limiting slot 302 can be such that bone nail interior bar 3 does not revolve with the rotation of bone nail cap 1
Turn, to make bone nail interior bar 3 that can only move back and forth along the fixed-direction of limiting slot 302, can thus accurately control bone
The mobile route of sting 301 makes bone nail thorn 301 accurately be pierced by or withdraw from acanthopore 205.
Upper pole cap 304 and lower pole cap 305 actually play the role of 3 upper end of bone nail interior bar being limited in bone nail cap 1, by
It is slidably connected in bone nail cap 1 and bone nail interior bar 3 by through-hole, therefore, when bone nail cap 1 rotates, can only make about 3 bone nail interior bar
It is mobile, without generating the active force rotated horizontally.
Embodiment 3:
The embedded sliding thorn type bone nail of one kind, including bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3, the cap of the bone nail cap 1
Wall 101 is threadedly coupled with 2 upper end of bone nail outer tube, and the center of the crown 102 of bone nail cap 1 is equipped with through-hole, the bone nail
Outer tube 2 is equipped with tip 201, is equipped with limited block 203, the bone nail interior bar close to one end of tip 201 in 2 inner wall of bone nail outer tube
3 are contained in the chamber of the formation of bone nail outer tube 2, are equipped with limiting slot 302 in one end that bone nail interior bar 3 is directed toward tip 201, described
Limiting slot 302 is slidably connected with limited block 203, and the other end of bone nail interior bar 3 passes through the through-hole of bone nail cap 1 and bone nail cap 1 slides
Connection, bone nail interior bar 3 are being located at 102 upper limb of crown equipped with upper pole cap 304, are equipped with lower pole cap being located at 102 lower edge of crown
305, it is equipped with bone nail thorn 301 on the bar wall 303 of bone nail interior bar 3, is equipped on the tube wall 202 of bone nail outer tube 2 and bone nail thorn 301
The acanthopore 204 of matching；
The periphery of the crown 102 of the bone nail cap 1 is hexagon；
The limiting slot 302 is 2, and has the limited block 203 of 2 matchings；
The inner wall of the acanthopore 204 tilts obliquely upward；
The number of the acanthopore 204 is identical as bone nail thorn 301；
The bone nail thorn 301 is conical structure；
The excellent bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3 are that titanium alloy is made.
Limiting slot 302 is 2, and has the limited block 203 of 2 matchings, can make the limit effect of bone nail interior bar 3 more in this way
It is good, it prevents from slipping.
Embodiment 4:
The embedded sliding thorn type bone nail of one kind, including bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3, the cap of the bone nail cap 1
Wall 101 is threadedly coupled with 2 upper end of bone nail outer tube, and the center of the crown 102 of bone nail cap 1 is equipped with through-hole, the bone nail
Outer tube 2 is equipped with tip 201, is equipped with limited block 203, the bone nail interior bar close to one end of tip 201 in 2 inner wall of bone nail outer tube
3 are contained in the chamber of the formation of bone nail outer tube 2, are equipped with limiting slot 302 in one end that bone nail interior bar 3 is directed toward tip 201, described
Limiting slot 302 is slidably connected with limited block 203, and the other end of bone nail interior bar 3 passes through the through-hole of bone nail cap 1 and bone nail cap 1 slides
Connection, bone nail interior bar 3 are being located at 102 upper limb of crown equipped with upper pole cap 304, are equipped with lower pole cap being located at 102 lower edge of crown
305, it is equipped with bone nail thorn 301 on the bar wall 303 of bone nail interior bar 3, is equipped on the tube wall 202 of bone nail outer tube 2 and bone nail thorn 301
The acanthopore 204 of matching；
The periphery of the crown 102 of the bone nail cap 1 is hexagon；
The limiting slot 302 is 2, and has the limited block 203 of 2 matchings；
The inner wall of the acanthopore 204 tilts obliquely upward；
The number of the acanthopore 204 is identical as bone nail thorn 301；
The bone nail thorn 301 is triangle slab organization；
The excellent bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3 are that titanium alloy is made.
The inner wall of acanthopore 204 tilts obliquely upward, has cooperated the mobile track of bone nail thorn 301 well, bone nail is made to pierce 301
It skids off or withdraws and is more convenient.
Titanium alloy has very strong rebound effect, can be very good to complete above-mentioned cunning using the bone nail thorn 301 of this characteristic
Out or withdraw movement, to realize the function of the utility model bone nail.
Embodiment 5:
The embedded sliding thorn type bone nail of one kind, including bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3, the cap of the bone nail cap 1
Wall 101 is threadedly coupled with 2 upper end of bone nail outer tube, and the center of the crown 102 of bone nail cap 1 is equipped with through-hole, the bone nail
Outer tube 2 is equipped with tip 201, is equipped with limited block 203, the bone nail interior bar close to one end of tip 201 in 2 inner wall of bone nail outer tube
3 are contained in the chamber of the formation of bone nail outer tube 2, are equipped with limiting slot 302 in one end that bone nail interior bar 3 is directed toward tip 201, described
Limiting slot 302 is slidably connected with limited block 203, and the other end of bone nail interior bar 3 passes through the through-hole of bone nail cap 1 and bone nail cap 1 slides
Connection, bone nail interior bar 3 are being located at 102 upper limb of crown equipped with upper pole cap 304, are equipped with lower pole cap being located at 102 lower edge of crown
305, it is equipped with bone nail thorn 301 on the bar wall 303 of bone nail interior bar 3, is equipped on the tube wall 202 of bone nail outer tube 2 and bone nail thorn 301
The acanthopore 204 of matching；；
The periphery of the crown 102 of the bone nail cap 1 is hexagon；
The limiting slot 302 is 2, and has the limited block 203 of 2 matchings；
The inner wall of the acanthopore 204 tilts obliquely upward；
The number of the acanthopore 204 is identical as bone nail thorn 301；
The bone nail thorn 301 is conical structure；
The excellent bone nail cap 1, bone nail outer tube 2, bone nail interior bar 3 are that titanium alloy is made.
In the state that bone nail thorn 301 is fully extended, good fixed function can be played, bone in the prior art is avoided
Nail cutting diaphysis, and the utility model bone nail is easy to disassemble, after withdrawing bone nail thorn 301, extracts the utility model bone nail, avoids existing
The problem of not only laborious bone nail but also injury diaphysis are screwed out in technology, is conducive to patient's rehabilitation as soon as possible.
Claims (10)
1. the embedded sliding thorn type bone nail of one kind, it is characterized in that: including bone nail, bone nail outer tube, bone nail interior bar, the cap wall and bone of bone nail cap
Nail outer tube upper end is threadedly coupled, and the center of the crown of bone nail cap is equipped with through-hole, and the bone nail outer tube is equipped with tip,
Bone nail outer tube wall is equipped with limited block close to one end of tip, and the bone nail interior bar is contained in the chamber of bone nail outer tube formation
It is interior, it is equipped with limiting slot in one end that bone nail interior bar is directed toward tip, the limiting slot is slidably connected with limited block, bone nail interior bar
The through-hole that the other end passes through bone nail cap is slidably connected with bone nail cap, and bone nail interior bar is being equipped with upper pole cap at crown upper limb,
It is equipped with lower pole cap positioned at crown lower edge, bone nail is equipped on the bar wall of bone nail interior bar and is pierced, is equipped on the tube wall of bone nail outer tube
The acanthopore to match with bone nail thorn.
2. a kind of embedded sliding thorn type bone nail as described in claim 1, it is characterized in that: the periphery of the crown of the bone nail cap is
Hexagon.
3. a kind of embedded sliding thorn type bone nail as described in claim 1, it is characterized in that: the limiting slot is 2, and has 2
The limited block of matching.
4. such as claim 1, a kind of 3 described in any item embedded sliding thorn type bone nails, it is characterized in that: the inner wall of the acanthopore is to oblique
Inclined upward.
5. such as a kind of described in any item embedded sliding thorn type bone nails of claim 1,3, it is characterized in that: the number and bone of the acanthopore
Sting is identical.
6. a kind of embedded sliding thorn type bone nail as described in claim 1, it is characterized in that: the bone nail thorn is triangle slab organization.
7. a kind of embedded sliding thorn type bone nail as described in claim 1, it is characterized in that: the bone nail thorn is trigonal pyramidal structure.
8. a kind of embedded sliding thorn type bone nail as described in claim 1, it is characterized in that: the bone nail thorn is conical structure.
9. such as a kind of described in any item embedded sliding thorn type bone nails of claim 1,2,3,6,7,8, it is characterized in that: the bone nail
Cap, bone nail outer tube, bone nail interior bar are that titanium alloy is made.
10. a kind of embedded sliding thorn type bone nail as claimed in claim 9, it is characterized in that: the titanium alloy is 6 aluminium of titanium, 4 vanadium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821463446.8U CN209220471U (en) | 2018-09-07 | 2018-09-07 | The embedded sliding thorn type bone nail of one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821463446.8U CN209220471U (en) | 2018-09-07 | 2018-09-07 | The embedded sliding thorn type bone nail of one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209220471U true CN209220471U (en) | 2019-08-09 |
Family
ID=67498458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821463446.8U Expired - Fee Related CN209220471U (en) | 2018-09-07 | 2018-09-07 | The embedded sliding thorn type bone nail of one kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209220471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603234A (en) * | 2020-05-23 | 2020-09-01 | 徐州长风生物科技有限公司 | High-holding-force anti-back bone screw |
| CN111616787A (en) * | 2020-05-23 | 2020-09-04 | 徐州长风生物科技有限公司 | Prestress anti-back bone screw assembly |
-
2018
- 2018-09-07 CN CN201821463446.8U patent/CN209220471U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603234A (en) * | 2020-05-23 | 2020-09-01 | 徐州长风生物科技有限公司 | High-holding-force anti-back bone screw |
| CN111616787A (en) * | 2020-05-23 | 2020-09-04 | 徐州长风生物科技有限公司 | Prestress anti-back bone screw assembly |
| CN111616787B (en) * | 2020-05-23 | 2022-01-18 | 上海市闵行区中心医院 | Prestress anti-back bone screw assembly |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190809 Termination date: 20200907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |