CN104970875A - Far-end axial indication locking intramedullary nail - Google Patents
Far-end axial indication locking intramedullary nail Download PDFInfo
- Publication number
- CN104970875A CN104970875A CN201510430036.8A CN201510430036A CN104970875A CN 104970875 A CN104970875 A CN 104970875A CN 201510430036 A CN201510430036 A CN 201510430036A CN 104970875 A CN104970875 A CN 104970875A
- Authority
- CN
- China
- Prior art keywords
- intramedullary nail
- nail
- locking
- far
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
Abstract
The invention provides a far-end axial indication locking intramedullary nail. Via the cooperation of a sighting device, positioning and locking of far-end locking holes of an intramedullary nail are achieved. The intramedullary nail comprises a nail body part with an inner cavity. The back end of the nail body part is provided with two locking holes axially penetrating the inner cavity. The intramedullary nail also comprises an indication guide pipe cooperatively penetrating through the inner cavity of the nail body part during positioning adjustment. The indication guide pipe is provided with a hollow inner cavity in which a soft drill can penetrate during an operation. A hollow sleeve which can be slidably pushed out of the locking holes is arranged in a front outlet end of the hollow inner cavity. According to the invention, by using the locking holes of the intramedullary nail as adjusting indication holes, the hollow sleeve in the indication guide pipe is used for leading the soft drill out of the surface of the human skin and then the hollow sleeve is locked, so the central line of a sighting device adjusting support can be adjusted to be consistent with the drilling-out axis of the soft drill. Thus, hole pair far-end lock nails corresponding to sighting device can be very easily locked, so operation time can be shortened, difficulty level of fixation operation in the intramedullary nail is reduced and locking success rate of the higher far-end lock nail is increased.
Description
Technical field
The present invention relates to technical field of medical instruments, especially a kind of distal shaft is to index strip lock intramedullary nail.
Background technology
Because intramedullary nail with lock has fixed, indication is wide, union of fracture rate advantages of higher, obtain promotion and application widely at present, unique unfortunately distal lockhole location is very difficult, is sometimes even through outside hole, causes unnecessary damage or lockhole failure.Existing intramedullary nail with lock is all designed with a locating platform at far-end, and this platform is exactly sight location and fixing benchmark.In practical operation, must first find this locating platform and by fixed for the locating rod on the sight locking just carrying out distal lockhole.The pinning position fixing process using intramedullary pin to join installing apparatus is: the otch being first an about 1cm by the locating hole on localizer fixed mount in distal femur, then bit drills hole is used, find the locating platform of main nail far-end after entering pulp cavity, then use localizer, fix leading platform.Because institute's bore diameter size is limited, often reliably can not find main nail platform, even if or find, hole can not reliably be fixed, and even again can be shifted in operation, causes pinning to locate unsuccessfully, and therefore repeatedly hole and damage cortical bone outside distal part of femur, to nail loose, reduce surgical quality, even occur some complication that should not occur.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, provides a kind of and locates convenience, can improve locking effect, distal shaft easy and simple to handle to index strip lock intramedullary nail.
The technical solution adopted for the present invention to solve the technical problems is: a kind of distal shaft is to index strip lock intramedullary nail, location and the locking in intra medullary nail far-end locking hole is realized with the use of sight, comprise the rivet nut portion with inner chamber, rear end, rivet nut portion has the lock hole of two radial penetration inner chambers, also comprise when location regulates and coordinate the instruction conduit penetrating intracavity in described rivet nut portion, when described instruction conduit has an operation for soft drill into hollow cavity, be provided with the hollow bushing slidably released outside lock hole before described hollow cavity in the port of export.
Specifically, the rear end of described instruction conduit and the rear end clamping of rivet nut portion inner chamber.
Further, described hollow cavity front end has the upper bending section corresponding with lock hole position.
Preferably, described hollow bushing is pushed out outside the lock hole of near-end through upper bending section.
For ease of regulating and controlling scope, between the extension line of described hollow bushing axis and the centrage of lock hole, form the angle α of 0 ° ~ 45 °.
The invention has the beneficial effects as follows: the lock hole of intramedullary pin is doubled as adjustment indicator hole by the present invention, soft brill is guided to get out human skin and lock by the hollow bushing in instruction conduit, sight can be regulated the centrage of support to be adjusted to get out axis with soft brill consistent, so just according to hole corresponding on sight, distal locking nail be locked easily.Relative to locating platform mode, can lack an otch, thus can alleviate the misery of patient during operation, shorten operating time, reduce intramedullary pin internal fixation operation difficulty, what obtain higher distal locking nail is locked into power.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is using state schematic diagram of the present invention.
In figure, 1. rivet nut portion 1-1. inner chamber 1-2. lock holes 2. indicate bending section 3. hollow bushing 4. sight 4-1. on conduit 2-1. hollow cavity 2-2. to regulate support
Detailed description of the invention
The present invention is further illustrated with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of distal shaft is as shown in Figure 1 to index strip lock intramedullary nail, location and the locking of intra medullary nail far-end locking hole 1-2 is realized with the use of sight 4, comprise rivet nut portion 1, the location with inner chamber 1-1 and coordinate the instruction conduit 2 that penetrates in described rivet nut portion 1 inner chamber 1-1 when regulating, be positioned at the lock hole 1-2 that rear end, rivet nut portion 1 has two radial penetration inner chamber 1-1, the rear end of described instruction conduit 2 and the rear end clamping of rivet nut portion 1 inner chamber 1-1.
When described instruction conduit 2 has an operation for soft drill into hollow cavity 2-1, described hollow cavity 2-1 front end has the upper bending section 2-2 corresponding with lock hole 1-2 position, be provided with the hollow bushing 3 slidably released outside lock hole 1-2 before described hollow cavity 2-1 in the port of export, described hollow bushing 3 is pushed out outside the lock hole 1-2 of near-end through upper bending section 2-2.
Simultaneously for ease of regulating and controlling scope, between the extension line of hollow bushing 3 axis outside release lock hole 1-2 and the centrage of lock hole 1-2, form the angle α of 0 ° ~ 45 °.
Operation principle: during use, first instruction conduit 2 is penetrated in the inner chamber 1-1 in rivet nut portion 1, the rear end of instruction conduit 2 is threaded with the rear end of inner chamber 1-1, by witness marker, instruction conduit 2 is in place, , guarantee to indicate the upper bending section 2-2 of the hollow cavity 2-1 of conduit 2 to export to align with indicator hole position (i.e. the lock hole 1-2 on the left side), at this moment the outlet opening of bending section 2-2 on hollow cavity 2-1 can be seen from the lock hole 1-2 on the left side, and hollow bushing 3 coordinates and to be placed in before hollow cavity 2-1 in the port of export, then use instrument hollow bushing 3 to be pushed into upper bending section 2-2 to export, until exceed left side lock hole 1-2 outer surface 1-1.5mm, again sight 4 is fixed with rivet nut portion 1, loading has been held the intramedullary cavity in hole successfully and has been attached it to position, the soft hollow cavity 2-1 drilling through instruction conduit 2 is used to pierce, through hollow bushing 3 until get out skin surface, then hollow tubing conductor is penetrated the soft brill end that gets out and hollow tubing conductor is pinned, according to soft brill position, soft brill gets out angle and is formed within the scope of the angle α of 0 ° ~ 45 ° between the extension line and the centrage of lock hole 1-2 of hollow bushing 3 axis, simultaneously the extension line of hollow bushing 3 axis and the centrage of lock hole 1-2 form one and regulate plane, be now the adjustment support 4-1 of adjustable sight 4, guaranteeing to regulate the centrage of support 4-1 to be positioned at above-mentioned plane and soft brill, to get out axis consistent, fix and regulate complete adjustment support 4-1, then instruction conduit 2 is extracted from the inner chamber 1-1 in rivet nut portion 1, finally just can lock distal locking nail according to hole corresponding on sight 4.
The present invention is by improving the location structure of intramedullary nail with lock, eliminate far-end locating platform, an otch can be lacked during such operation, alleviate the misery of patient, shorten operating time, reduce iatrogenic injury, reduce intramedullary pin internal fixation operation difficulty, higher distal locking nail can be obtained and be locked into power, make operation technique easy, reduce complication, be more suitable for and apply in field environment, emergency repair disaster relief operations and basic hospital.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. a distal shaft is to index strip lock intramedullary nail, location and the locking in intra medullary nail far-end locking hole (1-2) is realized with the use of sight (4), comprise the rivet nut portion (1) with inner chamber (1-1), rivet nut portion (1) rear end has the lock hole (1-2) of two radial penetration inner chambers (1-1), it is characterized in that: also comprise when location regulates and coordinate the instruction conduit (2) penetrated in described rivet nut portion (1) inner chamber (1-1), when described instruction conduit (2) has an operation for soft drill into hollow cavity (2-1), be provided with in described hollow cavity (2-1) the front port of export and slidably release lock hole (1-2) hollow bushing outward (3).
2. distal shaft according to claim 1 is to index strip lock intramedullary nail, it is characterized in that: the rear end of described instruction conduit (2) and the rear end clamping of rivet nut portion (1) inner chamber (1-1).
3. distal shaft according to claim 1 is to index strip lock intramedullary nail, it is characterized in that: described hollow cavity (2-1) front end has the upper bending section (2-2) corresponding with lock hole (1-2) position.
4. distal shaft according to claim 3 is to index strip lock intramedullary nail, it is characterized in that: described hollow bushing (3) is pushed out the lock hole (1-2) of near-end outward through upper bending section (2-2).
5. distal shaft according to claim 1 is to index strip lock intramedullary nail, it is characterized in that: the angle (α) forming 0 ° ~ 45 ° between the extension line of described hollow bushing (3) axis and the centrage of lock hole (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430036.8A CN104970875A (en) | 2015-07-21 | 2015-07-21 | Far-end axial indication locking intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430036.8A CN104970875A (en) | 2015-07-21 | 2015-07-21 | Far-end axial indication locking intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104970875A true CN104970875A (en) | 2015-10-14 |
Family
ID=54268210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510430036.8A Pending CN104970875A (en) | 2015-07-21 | 2015-07-21 | Far-end axial indication locking intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104970875A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN110495944A (en) * | 2019-09-20 | 2019-11-26 | 杨春 | A kind of femoral interlocking nail guid needle finder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4781181A (en) * | 1985-08-27 | 1988-11-01 | Zimmer, S.A. | Boring sensor for intramedullary nail and corresponding intramedullary nail |
| CN201675983U (en) * | 2010-04-28 | 2010-12-22 | 常州华森医疗器械有限公司 | Punching device used in coordination with intramedullary nail |
| CN102665582A (en) * | 2009-11-19 | 2012-09-12 | 帝纪麦德奥托公司 | Intermedullary system and method |
| CN204971540U (en) * | 2015-07-21 | 2016-01-20 | 常州华强医疗器械科技有限公司 | Distal end axial index strip lock intramedullary nail |
-
2015
- 2015-07-21 CN CN201510430036.8A patent/CN104970875A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4781181A (en) * | 1985-08-27 | 1988-11-01 | Zimmer, S.A. | Boring sensor for intramedullary nail and corresponding intramedullary nail |
| CN102665582A (en) * | 2009-11-19 | 2012-09-12 | 帝纪麦德奥托公司 | Intermedullary system and method |
| CN201675983U (en) * | 2010-04-28 | 2010-12-22 | 常州华森医疗器械有限公司 | Punching device used in coordination with intramedullary nail |
| CN204971540U (en) * | 2015-07-21 | 2016-01-20 | 常州华强医疗器械科技有限公司 | Distal end axial index strip lock intramedullary nail |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN108742811B (en) * | 2018-07-09 | 2020-06-19 | 常州华森医疗器械有限公司 | Anti-rotation intramedullary nail suite |
| CN110495944A (en) * | 2019-09-20 | 2019-11-26 | 杨春 | A kind of femoral interlocking nail guid needle finder |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151014 |
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