CN2829652Y - Combined intramedullary pin with lock - Google Patents
Combined intramedullary pin with lock Download PDFInfo
- Publication number
- CN2829652Y CN2829652Y CN 200520086296 CN200520086296U CN2829652Y CN 2829652 Y CN2829652 Y CN 2829652Y CN 200520086296 CN200520086296 CN 200520086296 CN 200520086296 U CN200520086296 U CN 200520086296U CN 2829652 Y CN2829652 Y CN 2829652Y
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- intramedullary needle
- involutory
- nail
- far away
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Abstract
This utility model relates to a kind of combination type intramedullary nail with nail, comprise far away section intramedullary needle and near section hollow intramedullary needle, respectively be provided with the self-locking nail hole on section intramedullary needle far away and the nearly section intramedullary needle, there is one involutory section on the top of section intramedullary needle far away and the bottom of nearly section intramedullary needle, involutory section part, section intramedullary needle far away is inserted in the inner chamber of near section intramedullary needle, in involutory section part of section intramedullary needle far away one thread center's blind hole of stretching under the end face is arranged, this thread center's blind hole inward turning is inserted with the body of rod of involutory screw rod, the pole cap of involutory screw rod is arranged in one section inner chamber under the self-locking nail hole of near section intramedullary needle, and the pole cap end face of involutory screw rod is provided with screw device.This combination type intramedullary nail with nail, structure is more simple, and section intramedullary needle far away is in the same place with nearly section intramedullary needle close apposition, forms an integral body, and intensity is big, makes fracture site involutory closely, has avoided the bone strength reduction.
Description
Technical field
This utility model relates to a kind of intramedullary nail with nail, a kind of combination type intramedullary nail with nail of more specifically saying so.
Background technology
Femur is the thickest long bone of human body, and muscle group is big and strong around the femur, after because of exogenous injury, and clinical Therapeutic Method, many in recent years employing external fixers or intramedullary nail with nail are fixed.The former since on external fixer the external long spiro nail of resected femur limited the activity of muscle group, make muscle group can not obtain taking exercise and degenerating, influence the patient and walks.Adopt fixedly fracture site of intramedullary nail with nail, no matter be closed reduction fixedly or open reduction fix, because backshank is away from set terminal, must rely on C type arm radioscopy machine, after aiming is positioned at self-locking nail hole on the backshank, insert self-locking nail again in the self-locking nail hole, this just makes operative doctor and patient be exposed under the X-radiation, causes the injury to human body.The employing patent No. is 03112338.4 the interior pressurization of femur marrow holder, though do not need C type arm radioscopy machine just can undergo surgery, but the deficiency of this patent is: 1, a section intramedullary needle far away and a nearly section intramedullary needle are involutory by the drive that spins anti-rotary sleeve promotion fracture near-end and far-end, occurring the docking site in involutory process easily can not put in place fully, thereby make far away section intramedullary needle and nearly section intramedullary needle have the possibility of circling round, influence the intensity of docking site structure; 2, complex structure, the cost height;
Summary of the invention
The purpose of this utility model provides a kind of docking site intensity combination type intramedullary nail with nail big, simple in structure.
In order to realize above-mentioned purpose, the combination type intramedullary nail with nail that is provided, comprise far away section intramedullary needle and nearly section intramedullary needle, respectively be provided with the self-locking nail hole on section intramedullary needle far away and the nearly section intramedullary needle, there is one involutory section on the top of section intramedullary needle far away and the bottom of nearly section intramedullary needle, its construction features is that nearly section intramedullary needle is hollow, involutory section part, section intramedullary needle far away is inserted in the inner chamber of near section intramedullary needle, in involutory section part of section intramedullary needle far away one thread center's blind hole of stretching under the end face is arranged, this thread center's blind hole inward turning is inserted with the body of rod of involutory screw rod, the pole cap of involutory screw rod is arranged in one section inner chamber under the self-locking nail hole of near section intramedullary needle, and the pole cap end face of involutory screw rod is provided with screw device.
Above-mentioned screw device is to screw groove, also can be the projection of screwing of band corner angle.
The quantity in above-mentioned self-locking nail hole respectively is provided with two on section intramedullary needle far away and the nearly section intramedullary needle.
In order to make more close apposition of far away section intramedullary needle and nearly section intramedullary needle, be provided with arc notch or arc convex, be provided with corresponding arc convex or arc notch in the position that nearly section intramedullary needle is positioned at involutory section section start in the position that section intramedullary needle outer wall far away is positioned at involutory section section start.
Combination type intramedullary nail with nail provided by the utility model is applicable to open reduction internal fixation Fracture of femur.To the patient of Fracture of femur is taken place, after expanding marrow in the art, record the nearly section of fracture and the section pulp cavity degree of depth far away, choose diameter, far away section intramedullary needle and nearly section intramedullary needle that length is fit to, be presented to respectively in fracture section far away pulp cavity and the nearly section pulp cavity, locate to install sight involutory section of section intramedullary needle far away, self-locking nail is inserted in self-locking nail hole on the aiming section far away intramedullary needle after the boring, remove sight, make in the time of the disconnected section of reseting fracture two involutory section of far away section intramedullary needle and nearly section intramedullary needle involutory, by the downward pushing tow in the end of near section intramedullary needle, rotate, make involutory section complete involutory, arc convex enters in the arc notch fully, the involutory screw rod of packing into, and tighten, on nearly section intramedullary needle, install sight, if fracture site is still gapped, can be by sight pushing tow fracture near-end, involutory fracture site pressurizes, after the gap disappeared, self-locking nail was inserted in the self-locking nail hole on the nearly section of the aiming intramedullary needle after the boring, remove sight, the flushing otch, sew up.
Combination type intramedullary nail with nail provided by the utility model, not only do not need C type arm radioscopy machine just can finish operation smoothly, stop operative doctor and fracture patient suffers X-ray injury, but also have following characteristics: 1, section intramedullary needle far away is in the same place by arc convex, arc notch and involutory screw rod close apposition with nearly section intramedullary needle, forms an integral body, and intensity is big, neither loose spacious, can not rotate yet, make fracture site involutory closely, avoid the bone strength reduction; 2, saved anti-rotary sleeve, structure is more simple, has reduced production cost.
Description of drawings
Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings, wherein:
Fig. 1 is the outline drawing of the described combination type intramedullary nail with nail of embodiment;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the outline drawing of near section intramedullary needle wherein;
Fig. 4 is the outline drawing of far away section intramedullary needle wherein.
Among the figure: 1 is section intramedullary needle far away, and 2 is nearly section intramedullary needle, and 3 is the self-locking nail hole, and 4 is involutory screw rod, and 5 is screw device, and 6 is arc notch, and 7 is arc convex.
The specific embodiment
With reference to accompanying drawing, the described combination type intramedullary nail with nail of embodiment, comprise far away section intramedullary needle 1 and nearly section intramedullary needle 2, nearly section intramedullary needle 2 is hollow, the epimere of nearly section intramedullary needle 2 mills flat, inwall is threaded, be beneficial to operation technique, section intramedullary needle 1 far away can be solid, also can be hollow, respectively be provided with two self-locking nail holes 3 on section intramedullary needle 1 far away and the nearly section intramedullary needle 2, there is one involutory section on the top of section intramedullary needle 1 far away and the bottom of nearly section intramedullary needle 2, involutory section part, section intramedullary needle 1 far away is inserted in the inner chamber of near section intramedullary needle 2, when far away section intramedullary needle 1 selected for use when solid, its involutory section part has thread center's blind hole of stretching under the end face, this thread center's blind hole inward turning is inserted with the body of rod of involutory screw rod 4, when far away section intramedullary needle 1 selected for use when hollow, the body of rod of involutory screw rod 4 spins with involutory section inwall of section intramedullary needle 1 far away, the pole cap of involutory screw rod 4 is arranged in one section inner chamber under the self-locking nail hole 3 of near section intramedullary needle 2, the pole cap end face of involutory screw rod 4 is provided with screw device 5, screw device 5 is to screw groove, also can be the projection of screwing of band corner angle, that draw among the figure be the former.
In order to make more close apposition of far away section intramedullary needle and nearly section intramedullary needle, be provided with arc convex 7, be provided with corresponding arc notch 6 in the position that section intramedullary needle 1 outer wall far away is positioned at involutory section section start in the position that nearly section intramedullary needle 2 is positioned at involutory section section start, also can be provided with arc notch 6 in the position that section intramedullary needle 1 outer wall far away is positioned at involutory section section start, be provided with corresponding arc convex 7 in the position that nearly section intramedullary needle 2 is positioned at involutory section section start, that draw among the figure is the former.
Claims (5)
1, a kind of combination type intramedullary nail with nail, comprise far away section intramedullary needle (1) and nearly section intramedullary needle (2), respectively be provided with self-locking nail hole (3) on section intramedullary needle (1) far away and the nearly section intramedullary needle (2), there is one involutory section on the top of section intramedullary needle far away (1) and the bottom of nearly section intramedullary needle (2), it is characterized in that nearly section intramedullary needle (2) is hollow, involutory section part, section intramedullary needle far away (1) is inserted in the inner chamber of near section intramedullary needle (2), in involutory section part of section intramedullary needle far away (1) thread center's blind hole of stretching under the end face is arranged, this thread center's blind hole inward turning is inserted with the body of rod of involutory screw rod (4), the pole cap of involutory screw rod (4) is arranged in one section inner chamber under the self-locking nail hole (3) of near section intramedullary needle (2), and the pole cap end face of involutory screw rod (4) is provided with screw device (5).
2, combination type intramedullary nail with nail according to claim 1 is characterized in that screw device (5) is to screw groove.
3, combination type intramedullary nail with nail according to claim 1 is characterized in that screw device (5) is the projection of screwing of band corner angle.
4, combination type intramedullary nail with nail according to claim 1 is characterized in that the quantity of self-locking nail hole (3), respectively is provided with two on section intramedullary needle (1) far away and near section intramedullary needle (2).
5,, it is characterized in that being provided with arc notch (6) or arc convex (7), being provided with corresponding arc convex (7) or arc notch (6) in the position that near section intramedullary needle (2) is positioned at involutory section section start in the position that is positioned at involutory section section start at section intramedullary needle (1) outer wall far away according to claim 1,2,3 or 4 described combination type intramedullary nail with nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086296 CN2829652Y (en) | 2005-08-17 | 2005-08-17 | Combined intramedullary pin with lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086296 CN2829652Y (en) | 2005-08-17 | 2005-08-17 | Combined intramedullary pin with lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2829652Y true CN2829652Y (en) | 2006-10-25 |
Family
ID=37134575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520086296 Expired - Fee Related CN2829652Y (en) | 2005-08-17 | 2005-08-17 | Combined intramedullary pin with lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2829652Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433798A (en) * | 2018-04-16 | 2018-08-24 | 无锡市第九人民医院 | A kind of intramedullary nail with locking steel plate effect |
| CN111973255A (en) * | 2020-06-23 | 2020-11-24 | 杨润松 | Combined intramedullary pin for fixing femoral fracture |
| CN112244976A (en) * | 2020-10-22 | 2021-01-22 | 中国科学院力学研究所 | Pre-stored energy type wireless electronic control extension intramedullary needle |
| CN111973255B (en) * | 2020-06-23 | 2024-05-31 | 杨润松 | Combined marrow needle for fixing femur fracture |
-
2005
- 2005-08-17 CN CN 200520086296 patent/CN2829652Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433798A (en) * | 2018-04-16 | 2018-08-24 | 无锡市第九人民医院 | A kind of intramedullary nail with locking steel plate effect |
| CN108433798B (en) * | 2018-04-16 | 2023-12-22 | 无锡市第九人民医院 | Intramedullary nail with steel plate locking effect |
| CN111973255A (en) * | 2020-06-23 | 2020-11-24 | 杨润松 | Combined intramedullary pin for fixing femoral fracture |
| CN111973255B (en) * | 2020-06-23 | 2024-05-31 | 杨润松 | Combined marrow needle for fixing femur fracture |
| CN112244976A (en) * | 2020-10-22 | 2021-01-22 | 中国科学院力学研究所 | Pre-stored energy type wireless electronic control extension intramedullary needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |