CN201668486U - Intramedullary nail - Google Patents
Intramedullary nail Download PDFInfo
- Publication number
- CN201668486U CN201668486U CN2010201682166U CN201020168216U CN201668486U CN 201668486 U CN201668486 U CN 201668486U CN 2010201682166 U CN2010201682166 U CN 2010201682166U CN 201020168216 U CN201020168216 U CN 201020168216U CN 201668486 U CN201668486 U CN 201668486U
- Authority
- CN
- China
- Prior art keywords
- intramedullary pin
- hole
- sealing cap
- pin bar
- intramedullary nail
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000006837 decompression Effects 0.000 claims abstract description 10
- 241001079814 Symphyotrichum pilosum Species 0.000 abstract 6
- 235000004224 Typha angustifolia Nutrition 0.000 abstract 6
- 238000005452 bending Methods 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
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- Surgical Instruments (AREA)
Abstract
The utility model discloses an intramedullary nail, which comprises an intramedullary nail rod and a sealing cap, wherein the tail portions of the near ends of the sealing cap and the intramedullary nail rod are connected through threads, the far end of the intramedullary nail rod is thin, the far end is thick, the intramedullary nail rod is provided with a long shaft rod with a certain bending degree, the intramedullary nail is provided with a long through hole on the axial direction, the far end of the intramedullary nail rod is orderly provided with a decompression plane and a locking hole, and the near end of the decompression rod is provided with an oblique non-circular tension hole. The tail ends of the sealing cap and the long through hole of the intramedullary nail rod are connected through threads, and the sealing cap is also provided with a through hole on the axial direction. The tension hole is matched with a corresponding shaped tension bolt, and the tension bolt can not rotate after the intramedullary nail is provided with the tension bolt, thereby reducing the uncomfortable feeling.
Description
Technical field
This utility model relates to a kind of intramedullary pin.
Background technology
When fracture takes place in human skeleton, can use intramedullary pin to connect knochenbruch usually, intramedullary pin generally means the long steel nail that is placed in the medullary cavity.Such as the femur and the tibia of lower limb, after an end of bone is opened wound and put into intramedullary pin, lag screw and staple are installed respectively at the near-end and the far-end of intramedullary pin, can prevent the rotation and the shortening of bone.Usually the hole of the lag screw of installing on the intramedullary pin is designed to circle, and after columniform lag screw installation was mixed in circular pulling force hole, lag screw rotated easily, brings incompatible sense to the wounded, even pain.
The utility model content
The purpose of this utility model is to provide intramedullary pin, and is simple in structure, can prevent effectively that lag screw from rotating, and reduces the wounded's incompatibility sense.
The technical scheme that realizes this utility model purpose is: a kind of intramedullary pin, comprise intramedullary pin bar and sealing cap, sealing cap is connected with the tailing screw flight of the near-end of intramedullary pin bar, described intramedullary pin bar is that the thin near-end of far-end is thick, and have a long shaft rod of certain flexibility, the intramedullary pin bar is axially arranged with long through-hole, and the far-end of intramedullary pin bar is provided with decompression Plane and locking hole successively, and the near-end of intramedullary pin bar is provided with oblique non-circular pulling force hole; Described sealing cap is threaded with the tail end of the long through-hole of intramedullary pin bar, sealing cap axially also be provided with through hole.
The rear of the long through-hole of described intramedullary pin bar is followed successively by the sealing cap screw and compresses screw, and the intramedullary pin bar is threaded with sealing cap by the sealing cap screw.
The far-end of described intramedullary pin bar is provided with many decompression Plane.
The two ends in described intramedullary pin bar upper pulling force hole are provided with locating platform.
The afterbody of the near-end of described intramedullary pin bar is provided with groove.
The utlity model has following beneficial effect: the near-end of (1) intramedullary pin bar of the present utility model is provided with oblique non-circular pulling force hole, the lag screw of respective shapes is mixed in the pulling force hole of this shape, after installing lag screw on the intramedullary pin, lag screw can not rotate, and reduces the wounded's incompatibility sense.
(2) rear of the long through-hole of intramedullary pin bar of the present utility model is followed successively by the sealing cap screw and compresses screw, behind the installation clamp nut, can compress lag screw like this in compressing screw, makes lag screw be not easy to produce and slides.
(3) far-end of intramedullary pin bar of the present utility model is provided with many decompression Plane, and bone marrow marrow blood flow was unimpeded after this structure made the wounded that intramedullary pin is installed, and the fracture portions healing rate is fast.
(4) two ends in intramedullary pin bar upper pulling force of the present utility model hole are provided with locating platform, and this structure makes can accurately aim at pulling force hole on the intramedullary pin bar when lag screw is installed.
(5) afterbody of the near-end of intramedullary pin bar of the present utility model is provided with groove, and this structure can play the effect that auxiliary intra medullary nail is installed.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment also in conjunction with the accompanying drawings, this utility model is described in further detail, wherein below
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of this utility model intramedullary pin bar.
Fig. 3 is the structural representation of this utility model sealing cap.
Fig. 4 is the structural representation of this utility model pulling force hole and locating platform.
Fig. 5 is the structural representation of tail end of the near-end of this utility model intramedullary pin bar.
Label is in the accompanying drawing:
The specific embodiment
(embodiment 1)
See Fig. 1 to Fig. 5, present embodiment comprises intramedullary pin bar 1 and sealing cap 2.
Sealing cap 2 is connected with the tailing screw flight of the near-end of intramedullary pin bar 1, intramedullary pin bar 1 is that the thin near-end of far-end is thick, and have a long shaft rod of certain flexibility, intramedullary pin bar 1 is axially arranged with long through-hole 11, the rear of the long through-hole 11 of intramedullary pin bar 1 is followed successively by sealing cap screw 11-1 and compresses screw 11-2, intramedullary pin bar 1 is threaded with sealing cap 2 by sealing cap screw 11-1, the far-end of intramedullary pin bar 1 is provided with decompression Plane 12 and locking hole 13 successively, decompression Plane 12 is provided with many, the near-end of intramedullary pin bar 1 is provided with oblique non-circular pulling force hole 14, the two ends in pulling force hole 14 are provided with locating platform 15, and the afterbody of the near-end of intramedullary pin bar 1 is provided with groove 16.Sealing cap 2 is threaded with the tail end of the long through-hole 11 of intramedullary pin bar 1, sealing cap 2 axially also be provided with through hole 21.
Should be appreciated that specific embodiment described above only is used to explain this utility model, and be not used in qualification this utility model.Conspicuous variation of being extended out by spirit of the present utility model or change still are among the protection domain of the present utility model.
Claims (5)
1. intramedullary pin, it is characterized in that: comprise intramedullary pin bar (1) and sealing cap (2), sealing cap (2) is connected with the tailing screw flight of the near-end of intramedullary pin bar (1), described intramedullary pin bar (1) is that the thin near-end of far-end is thick, and have a long shaft rod of certain flexibility, intramedullary pin bar (1) is axially arranged with long through-hole (11), and the far-end of intramedullary pin bar (1) is provided with decompression Plane (12) and locking hole (13) successively, and the near-end of intramedullary pin bar (1) is provided with oblique non-circular pulling force hole (14); Described sealing cap (2) is threaded with the tail end of the long through-hole (11) of intramedullary pin bar (1), sealing cap (2) axially also be provided with through hole (21).
2. intramedullary pin according to claim 1, it is characterized in that: the rear of the long through-hole (11) of described intramedullary pin bar (1) is followed successively by sealing cap screw (11-1) and compresses screw (11-2), and intramedullary pin bar (1) is threaded with sealing cap (2) by sealing cap screw (11-1).
3. intramedullary pin according to claim 2 is characterized in that: the far-end of described intramedullary pin bar (1) is provided with many decompression Plane (12).
4. intramedullary pin according to claim 3 is characterized in that: the two ends in described intramedullary pin bar (1) upper pulling force hole (14) are provided with locating platform (15).
5. intramedullary pin according to claim 3 is characterized in that: the afterbody of the near-end of described intramedullary pin bar (1) is provided with groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201682166U CN201668486U (en) | 2010-04-23 | 2010-04-23 | Intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201682166U CN201668486U (en) | 2010-04-23 | 2010-04-23 | Intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201668486U true CN201668486U (en) | 2010-12-15 |
Family
ID=43325900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201682166U Expired - Fee Related CN201668486U (en) | 2010-04-23 | 2010-04-23 | Intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201668486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103417283A (en) * | 2013-08-14 | 2013-12-04 | 刘长城 | Intramedullary nail |
-
2010
- 2010-04-23 CN CN2010201682166U patent/CN201668486U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103417283A (en) * | 2013-08-14 | 2013-12-04 | 刘长城 | Intramedullary nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TRAUSON MEDICAL INSTRUMENT (CHINA) CO., LTD. Free format text: FORMER NAME: TRAUSON MEDICAL INSTRUMENT (JIANGSU) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213163 Renmin West Road, Niu Tong Town, Wujin District, Jiangsu, Changzhou Patentee after: Trauson Medical Instrument (China) Company Limited Address before: 213163 Renmin West Road, Niu Tong Town, Wujin District, Jiangsu, Changzhou Patentee before: Trauson Medical Instrument (Jiangsu) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20190423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |