CN2801073Y - Retrosigmoidal locking hole enterring route declinator - Google Patents
Retrosigmoidal locking hole enterring route declinator Download PDFInfo
- Publication number
- CN2801073Y CN2801073Y CN 200520083569 CN200520083569U CN2801073Y CN 2801073 Y CN2801073 Y CN 2801073Y CN 200520083569 CN200520083569 CN 200520083569 CN 200520083569 U CN200520083569 U CN 200520083569U CN 2801073 Y CN2801073 Y CN 2801073Y
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- handles
- keyhole
- utility
- model
- arms
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Abstract
The utility model relates to a retractor for keyhole craniotomy through suboccipital retrosigmoid sinuses. The utility model comprises handles, a locking device, a front arm and a shift pawl. The middle parts of the two handles are hinged together. The locking device is arranged between the two handles. Back arms on the front parts of the handles are hinged with the front arms. The front arches of the two front arms respectively form a bending arc shape. The front end of each front arm is provided with the shifting pawl which is vertical with the plane that the two front arms are positioned. The shifting pawls are respectively and oppositely arranged. The shifting pawls are respectively shortened to form a structure that the front part is high and the back part is low from front to back. The shift pawl gradually forms an outwards inclined and expanded shape from the root part to the front end. The utility model is used for keyhole craniotomy through suboccipital retrosigmoid sinuses of neurosurgery to be used as a retraction instrument. The occipitoposterior muscle group is conveniently retracted, and the effective bone window is enlarged. The utility model is suitable for carrying out the keyhole operation under the microscope, and the clinical use is convenient.
Description
Technical field:
This utility model relates to a kind of neurosurgery retrosigmoid approach lockhole commonly used and opens cranium and retract apparatus.
Background technology:
Neurosurgery exposes occipital bone traditional posterior fossa retractor commonly used for retracting in carrying out the retrosigmoid approach operation for a long time, and this apparatus mainly satisfies the needs of traditional naked eyes operation.Adopt operating microscope and keyhole surgery to increase gradually in recent years, retractor in the past is not suitable for adopting microscopically to carry out keyhole surgery, it is big that traditional back cranium retractor exposes otch, especially when exposing retrosigmoid approach, this traction apparatus exposure can not be satisfied local edge of a knife district soft tissue thickness and differ, the excessive operative approach sight line that influences of retractor, clinical use inconvenience.
Summary of the invention:
The purpose of this utility model provides keyhole approach retractor behind a kind of sigmoid sinus, conveniently retracts pillow back muscle group, has enlarged effective bone window, conveniently carries out the retrosigmoid approach operation.
The purpose of this utility model realizes as follows: keyhole approach retractor behind this sigmoid sinus, relate to handle, dead lock, forearm, pusher dog, two handles middle part is hinged, be provided with dead lock between two handles, the forward postbrachium front end of handle is hinged with forearm, the front end of forearm has pusher dog, above structure is driven device as traditional back cranium nest, but the moderate dimensions that this retractor can be done, being more suitable for retrosigmoid approach operating microscope throwing photograph and operation technique uses, be characterized in: the pusher dog on two forearms shortens from front to back successively, the low structure in high back before forming, and such shape helps retracting pillow back muscle group.
Pusher dog on two forearms is arranged one by one relatively, makes during operation that to retract pillow back muscle group stressed evenly.
The anterior arch of two forearms is crooked arc, and both arms can surround ellipticity like this, have enlarged effective bone window, the carrying out of convenient operation.
Pusher dog is progressively outward-dipping shape from the root to the front end, and front end is opened, and also helps enlarging the size of effective bone window.
Can be designed as 4 pusher dogs on each forearm, can satisfy the needs that retract pillow back muscle group.
Keyhole approach retractor behind this sigmoid sinus aims at the retrosigmoid approach operation designing, conveniently retracts pillow back muscle group, has enlarged effective bone window, is fit to adopt microscopically to carry out keyhole surgery, and is clinical easy to use.
Description of drawings:
Accompanying drawing is the structural representation of keyhole approach retractor behind this utility model sigmoid sinus.
The specific embodiment:
With reference to accompanying drawing, it relates to handle 1, dead lock 2, forearm 4, pusher dog 5, two handles, 1 middle part is hinged, be provided with dead lock 2 between two handles 1, handle 1 forward postbrachium 3 front ends are hinged with forearm 4, the anterior arch 6 of two forearms 4 is crooked arc, the front end of each forearm 4 has 4 and the subvertical pusher dog 5 in plane, two forearms, 4 place, pusher dog 5 is arranged one by one relatively, pusher dog 5 shortens from front to back successively, the low structure in high back before forming, pusher dog 5 are outward-dipping open shape progressively from the root to the front end.
Claims (5)
1, keyhole approach retractor behind a kind of sigmoid sinus, relate to handle, dead lock, forearm, pusher dog, two handles middle part is hinged, be provided with dead lock between two handles, the forward postbrachium front end of handle is hinged with forearm, the front end of forearm has pusher dog, it is characterized in that: the pusher dog (5) on two forearms (4) shortens from front to back successively, the low structure in high back before forming.
2, keyhole approach retractor behind the sigmoid sinus according to claim 1 is characterized in that: the pusher dog (5) on two forearms (4) is arranged one by one relatively.
3, keyhole approach retractor behind the sigmoid sinus according to claim 1 is characterized in that: the anterior arch (6) of two forearms (4) is crooked arc.
4, keyhole approach retractor behind the sigmoid sinus according to claim 1 is characterized in that: pusher dog (5) is progressively outward-dipping shape from the root to the front end.
5, keyhole approach retractor behind the sigmoid sinus according to claim 1 is characterized in that: 4 pusher dogs (5) are arranged on each forearm (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520083569 CN2801073Y (en) | 2005-05-25 | 2005-05-25 | Retrosigmoidal locking hole enterring route declinator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520083569 CN2801073Y (en) | 2005-05-25 | 2005-05-25 | Retrosigmoidal locking hole enterring route declinator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2801073Y true CN2801073Y (en) | 2006-08-02 |
Family
ID=36845776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520083569 Expired - Fee Related CN2801073Y (en) | 2005-05-25 | 2005-05-25 | Retrosigmoidal locking hole enterring route declinator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2801073Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9795370B2 (en) | 2014-08-13 | 2017-10-24 | Nuvasive, Inc. | Minimally disruptive retractor and associated methods for spinal surgery |
| CN110403650A (en) * | 2019-07-23 | 2019-11-05 | 四川省肿瘤医院 | A device for tissue compression and displacement in axillary endoscopy for thyroid surgery |
-
2005
- 2005-05-25 CN CN 200520083569 patent/CN2801073Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9795370B2 (en) | 2014-08-13 | 2017-10-24 | Nuvasive, Inc. | Minimally disruptive retractor and associated methods for spinal surgery |
| US10660628B2 (en) | 2014-08-13 | 2020-05-26 | Nuvasive, Inc. | Minimally disruptive retractor and associated methods for spinal surgery |
| US11399816B2 (en) | 2014-08-13 | 2022-08-02 | Nuvasive, Inc. | Minimally disruptive retractor and associated methods for spinal surgery |
| US12108947B2 (en) | 2014-08-13 | 2024-10-08 | Nuvasive, Inc. | Minimally disruptive retractor and associated methods for spinal surgery |
| CN110403650A (en) * | 2019-07-23 | 2019-11-05 | 四川省肿瘤医院 | A device for tissue compression and displacement in axillary endoscopy for thyroid surgery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 |