CN204158481U - A kind of pedicle nail gag - Google Patents
A kind of pedicle nail gag Download PDFInfo
- Publication number
- CN204158481U CN204158481U CN201320497426.3U CN201320497426U CN204158481U CN 204158481 U CN204158481 U CN 204158481U CN 201320497426 U CN201320497426 U CN 201320497426U CN 204158481 U CN204158481 U CN 204158481U
- Authority
- CN
- China
- Prior art keywords
- gag
- pedicle nail
- handle portion
- cross
- cylinder
- 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 - Lifetime
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- Prostheses (AREA)
Abstract
A kind of pedicle nail gag, overall in T shape or T-shaped, can be also cross, comprise handle portion, gag head portion, connect cylinder.Gag head portion is trapezoidal rectangular pyramid, and section configuration is trapezoidal, and gag head portion one end is trapezoidal rectangular pyramid, and the other end is naturally excessively for connecting cylinder, and it is circular or oval for connecting cylinder cross section, and is connected with handle portion.Described pedicle nail gag is used in pedicle internal fixation operation, before being screwed into pedicle nail, carry out opening location to the position being screwed into pedicle nail, can not produce slippage, shift phenomenon during to guarantee that pedicle nail is screwed into, guarantee pedicle nail accurately pedicle is screwed into vertebral body.Thus improve success rate of operation, reduce operation risk.
Description
One, technical field
The present invention relates to a kind of pedicle nail gag, for operation in by pedicle nail like clockwork pedicle be screwed into vertebral body.
Two, background technology
In pedicle internal fixation operation, need pedicle nail pedicle to be screwed into vertebral body, but pedicle nail is screwed into surface, place for concavo-convex Irregular Boundary Surface, sclerotin is that cortical bone is comparatively hard.Therefore more difficult when being screwed into pedicle nail, be difficult to ensure that pedicle nail is screwed into by desired position, slippage, skew can be produced.So that operative failure and surgical effect undesirable.So in pedicle internal fixation operation, can pedicle be screwed into vertebral body is accurately successful surgery whether key by pedicle nail.Therefore pedicle nail precise positioning and do not produce slippage when ensureing that pedicle nail is screwed into, skew is exactly key in key.There is no corresponding easy easy-to-use effective instrument at present, therefore invented this instrument one pedicle nail gag, to realize this key a bit.
Three, summary of the invention
According to goal of the invention of the present invention, wherein provide a kind of pedicle nail gag, comprise handle portion 1, gag head portion 2, connect cylinder 3, gag head portion 2 is connected with handle portion 1 by connecting cylinder 3.
According to the further goal of the invention of the present invention, wherein gag head portion 2 is trapezoidal rectangular pyramid, and its cross section is trapezoidal.
According to the further goal of the invention of the present invention, wherein gag head portion 2 gag head portion 2 also can be cone rectangle rectangular pyramid, and its cross section is rectangle, or is triangular pyramid, and its cross section is triangle.
According to the further goal of the invention of the present invention, it is circular or oval for wherein connecting cylinder 3 cross section.
According to the further goal of the invention of the present invention, wherein pedicle nail gag entirety is in T shape.
According to the further goal of the invention of the present invention, wherein pedicle nail gag entirety is in cross.
According to the further goal of the invention of the present invention, wherein connect cylinder 3 and the connected mode between handle portion 1 for welding, hinged, riveting method is connected.
According to the further goal of the invention of the present invention, wherein connect cylinder 3 and the connected mode between handle portion 1 for engaging, fastening, chimeric mode connects.
According to the further goal of the invention of the present invention, multiple engaging, fastening, chimeric point are wherein set on connection cylinder 3 to adjust the length of connection cylinder 3 in handle portion less than 1.
According to the further goal of the invention of the present invention, wherein the cross section of handle portion 1 can be circle, ellipse, square or rectangular, trapezoidal, and its surface can arrange screw thread, granule, reticulate pattern increase frictional force, also can be convenient to clamping by setting unit groove.
According to the further goal of the invention of the present invention, wherein in pedicle nail gag, entirety is stainless steel, handle portion 1 be connected cylinder 3 hollow arrange, to reduce the weight of whole pedicle nail gag.
Four, accompanying drawing explanation
Fig. 1 is pedicle nail gag schematic diagram of the present invention.
Fig. 2 is the section configuration schematic diagram of pedicle nail gag head portion of the present invention.
Reference numeral: 1 is handle portion, 2 is gag head portion, and 3 for connecting cylinder.
Five, detailed description of the invention
A kind of pedicle nail gag, overall in T shape, also can be cross, as shown in Figure 1, comprise handle portion 1, gag head portion 2, connect cylinder 3.Gag head portion 2 is trapezoidal rectangular pyramid, and cross sectional shape is trapezoidal, as shown in Figure 2, gag head portion 2 one end is trapezoidal rectangular pyramid, and gag head portion 2 also can be cone rectangle rectangular pyramid, and its cross section is rectangle, or be triangular pyramid, its cross section is triangle.The transition of other end nature is for connecting cylinder 3, and it is circular or oval for connecting cylinder 3 cross section, and is connected with handle portion 1.The trapezoidal cross-section shape of gag head portion 2 ensure that the sharp of gag side edge, guarantees to be easy to cutting to bone when carrying out opening location, and the bone be cut off bits are easy to discharge.Connect cylinder 3 when pedicle nail gag entirety is in cross to intersect with handle portion 1, and the termination connecting cylinder 3 projects upwards (not shown) in the middle part of handle portion 1, connect cylinder 3 with the connected mode between handle portion 1 can be weld, hinged, rivet, engage, fasten, the various ways such as chimeric, when it connects for engaging, fastening, multiple engaging, fastening, chimeric point can be set on connection cylinder 3 to adjust the length of connection cylinder 3 in handle portion less than 1, meet the needs of difference operation.The cross section of handle portion 1 can be circle, ellipse, square or rectangular, trapezoidal etc., and its surface can arrange screw thread, granule, reticulate pattern etc. increases frictional force, also can be convenient to clamping by setting unit groove.In pedicle nail gag, entirety can be stainless steel, handle portion 1 be connected cylinder 3 can hollow arrange, to reduce the weight of whole pedicle nail gag.
Described pedicle nail gag is used in pedicle internal fixation operation, before being screwed into pedicle nail, carry out opening location to the position being screwed into pedicle nail, can not produce slippage, shift phenomenon during to guarantee that pedicle nail is screwed into, guarantee pedicle nail accurately pedicle is screwed into vertebral body.Thus improve success rate of operation, reduce operation risk.
Although previous description and drawings describe the preferred embodiments of the present invention, being understood that when not departing from spirit of the present invention, various additional, amendment can being produced at this and replacing.It will be apparent to those of skill in the art that when not departing from spirit of the present invention or intrinsic propesties, and other elements, material and parts can be utilized to realize the present invention with other specific form, structure, layout, ratio.Those skilled in the art will recognize: the present invention can use structure, layout, ratio, material and the parts and other many amendments that use in invention reality, and these are modified in when not departing from principle of the present invention and are adapted to special environment and operational requirements especially.Therefore, current disclosed embodiment should be understood to illustrative in all respects but not it be asked to the restriction of the scope of protection.
Claims (5)
1. a pedicle nail gag, comprise handle portion (1), gag head portion (2), connect cylinder (3), gag head portion (2) is connected with handle portion (1) by connecting cylinder (3), it is characterized in that gag head portion (2) is for trapezoidal rectangular pyramid, its cross section is trapezoidal, gag head portion (2) for its cross section of rectangle rectangular pyramid be rectangle, or for its cross section of triangular pyramid is triangle, wherein connect cylinder (3) cross section for circular or oval, wherein pedicle nail gag entirety is in cross, the cross section of handle portion (1) is circular or is ellipse, or square, or rectangle, or it is trapezoidal, its surface arranges screw thread or granule or reticulate pattern increases frictional force, or arrange groove be convenient to clamping, wherein gag head portion (2) is trapezoidal, rectangle, triangular section shape ensure that the sharp of gag side edge, guarantee to be easy to cutting to bone when carrying out opening location, and the bone be cut off bits are easy to discharge.
2. pedicle nail gag as claimed in claim 1, is characterized in that the connected mode wherein connected between cylinder (3) with handle portion (1) is that welding manner is connected, or articulated manner connects, or riveting method connects.
3. pedicle nail gag as claimed in claim 1, is characterized in that the connected mode wherein connected between cylinder (3) with handle portion (1) is that snap fit is connected, or manner connects, or chimeric mode connects.
4. pedicle nail gag as claimed in claim 3, is characterized in that in connection cylinder (3), arranging multiple engaging or fastening or be fitted together to point connecting cylinder (3) in handle portion (1) length below to adjust.
5. as the pedicle nail gag as described in arbitrary in claim 1-3, it is characterized in that overall in pedicle nail gag is stainless steel, handle portion (1) be connected cylinder (3) hollow arrange, to reduce the weight of whole pedicle nail gag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497426.3U CN204158481U (en) | 2013-08-15 | 2013-08-15 | A kind of pedicle nail gag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497426.3U CN204158481U (en) | 2013-08-15 | 2013-08-15 | A kind of pedicle nail gag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204158481U true CN204158481U (en) | 2015-02-18 |
Family
ID=52532220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320497426.3U Expired - Lifetime CN204158481U (en) | 2013-08-15 | 2013-08-15 | A kind of pedicle nail gag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204158481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104783878A (en) * | 2015-04-29 | 2015-07-22 | 浙江博硕倍生物科技有限公司 | Absorbable self-locking fixing bar and preparing method thereof |
| CN105816235A (en) * | 2016-02-26 | 2016-08-03 | 邓宇 | Rotating arm knife of thoracolumbar vertebral fracture posterior micro-wound screw-rod fixation percutaneous reduction system |
-
2013
- 2013-08-15 CN CN201320497426.3U patent/CN204158481U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104783878A (en) * | 2015-04-29 | 2015-07-22 | 浙江博硕倍生物科技有限公司 | Absorbable self-locking fixing bar and preparing method thereof |
| CN104783878B (en) * | 2015-04-29 | 2016-10-12 | 天津博硕倍生物科技有限公司 | Absorbable self-locking hold-down bars and preparation method thereof |
| CN105816235A (en) * | 2016-02-26 | 2016-08-03 | 邓宇 | Rotating arm knife of thoracolumbar vertebral fracture posterior micro-wound screw-rod fixation percutaneous reduction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing SMTP Technology Co.,Ltd. Document name: Notice of examination and approval of fee reduction |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150218 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Ma Hui Document name: Notice of Termination of Patent Rights |