CN204336977U - Lead screw linkage formula neurosurgery retractor - Google Patents
Lead screw linkage formula neurosurgery retractor Download PDFInfo
- Publication number
- CN204336977U CN204336977U CN201420782952.9U CN201420782952U CN204336977U CN 204336977 U CN204336977 U CN 204336977U CN 201420782952 U CN201420782952 U CN 201420782952U CN 204336977 U CN204336977 U CN 204336977U
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- CN
- China
- Prior art keywords
- driving levers
- leading screw
- leading
- lead screw
- screw
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of lead screw linkage formula neurosurgery retractor, relate to neurosurgery equipment technical field.It comprises and is symmetrical arranged in splay two driving levers, leading screws, and the screw thread of leading screw is divided into two sections of reverse threads in the longitudinal direction; The leading section of two driving levers is all provided with pusher dog; The rear end of two driving levers is hinged, and the rear portion of two driving levers respectively has a through hole; Two through holes are symmetrical arranged; A sleeve pipe is all hinged with in each through hole; The two ends of leading screw are connected with two casing threads respectively; The middle part of leading screw is fixed with regulating wheel.The beneficial effects of the utility model are under the prerequisite not reducing surgical field of view, reduce the space that operating equipment takies, and are conducive to reducing operation risk.
Description
Technical field
This utility model relates to neurosurgery equipment technical field, especially a kind of retractor.
Background technology
Usually need when neurosurgery row skull or spinal operation to retract skin and muscular tissue, conventional is a kind of retractor utilizing lever principle to make, cumulative volume occupied during tractive is large, visual area when impact operation is carried out exposes, in neurosurgery process, good visual area exposes and can be described as one of key that whole successful surgery carries out, the one side improving visual area exposure depends on the size of tractive opening, also relevant with shared volume during retractor tractive on the other hand, the size of retractor had both affected the operation of operation, also the exposure of visual area can be disturbed, reduce retractor volume during operation, visual area can be increased expose, reduce operation risk.
Utility model content
Technical problem to be solved in the utility model, be the technical deficiency for above-mentioned existence, provide a kind of lead screw linkage formula neurosurgery retractor, under the prerequisite not reducing surgical field of view, reduce the space that operating equipment takies, be conducive to reducing operation risk.
The technical solution adopted in the utility model is: provide lead screw linkage formula neurosurgery retractor, and comprise and be symmetrical arranged in splay two driving levers, leading screws, the screw thread of leading screw is divided into two sections of reverse threads in the longitudinal direction; The leading section of two driving levers is all provided with pusher dog; The rear end of two driving levers is hinged, and the rear portion of two driving levers respectively has a through hole; Two through holes are symmetrical arranged; A sleeve pipe is all hinged with in each through hole; The two ends of leading screw are connected with two casing threads respectively; The middle part of leading screw is fixed with regulating wheel.
Further optimization the technical program, the two ends of the leading screw of lead screw linkage formula neurosurgery retractor are all fixed with the limited cap that a diameter is greater than sleeve pipe bore.
Further optimization the technical program, the leading section of each driving lever of lead screw linkage formula neurosurgery retractor all has multiple circular trough straight up; The lower end of pusher dog is provided with at least two locating rods coordinated with circular trough grafting; Each pusher dog is all fixed on corresponding driving lever by locating rod.
Compared with traditional neurosurgery retractor, adopt technique scheme, the beneficial effects of the utility model are:
1, traditional neurosurgery retractor all adopts the arm of force and driving lever lever construction arranged in a crossed manner, and this utility model adjusts the angle of two driving levers by rotational lead screw, the lever intersection arm of force is no longer set, this reduces the space that operating equipment takies, and can not surgical field of view be reduced.
2, structure of the present utility model is simple, and operation accurately.3, the hinged place of two sleeve pipes and two driving levers surrounds triangular shape structure, and this structure is simple, firm.In addition, two sections of reverse threads of leading screw are telescopic joint with two respectively, and during rotational lead screw, in opposite directions or adverse movement, range of accommodation is large, and the rotating speed that speed speed can be taken turns by regulating and controlling controls for the driving lever of both sides; Finally, leading screw is connected with casing threads and inherently has inverse-stopping functions, eliminates the non-return location structure of traditional retractor.
3, pusher dog is fixed in the circular trough of driving lever by the mode of grafting, and the position of pusher dog and quantity can according to leading scalloping size adjusting, easy for installation, highly versatile.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation at this utility model leading screw place;
Fig. 3 is the decomposing schematic representation of Fig. 2.
In figure, 1, driving lever; 2, leading screw; 3, reverse thread; 4, pusher dog; 5, through hole; 6, sleeve pipe; 7, regulating wheel; 8, limited cap; 9, circular trough; 10, locating rod.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
As shown in Figure 1, lead screw linkage formula neurosurgery retractor comprises and is symmetrical arranged in splay two driving levers 1, leading screw 2, and the screw thread of leading screw 2 is divided into two sections of reverse threads 3 in the longitudinal direction; As shown in Figure 2, the two ends of leading screw 2 are all fixed with the limited cap 8 that a diameter is greater than sleeve pipe 6 bore; The leading section of two driving levers 1 is all provided with pusher dog 4; As shown in Figure 3, the leading section of each driving lever 1 all has multiple circular trough 9 straight up; The lower end of pusher dog 4 is provided with at least two locating rods 10 coordinated with circular trough 9 grafting; Each pusher dog 4 is all fixed on corresponding driving lever 1 by locating rod 10; The rear end of two driving levers 1 is hinged, and the rear portion of two driving levers 1 respectively has a through hole 5; Two through holes 5 are symmetrical arranged; A sleeve pipe 6 is all hinged with in each through hole 5; The two ends of leading screw 2 are threaded with two sleeve pipes 6 respectively; The middle part of leading screw 2 is fixed with regulating wheel 7.
3, the hinged place of two sleeve pipes 6 and two driving levers 1 surrounds triangular shape structure, and this structure is simple, firm.In addition, two sections of reverse threads 3 of leading screw 2 are connected with two sleeve pipes 6 respectively, and during rotational lead screw 2, in opposite directions or adverse movement, range of accommodation is large for the driving lever 1 of both sides, and the rotating speed that speed speed can take turns 7 by regulating and controlling controls; Finally, leading screw 2 is threaded with sleeve pipe 6 and inherently has inverse-stopping functions, eliminates the non-return location structure of traditional retractor, and in use, two pusher dogs 4 are inserted tissue cut by the hinged place of hand-held two driving levers 1 of user; Then rotate regulating wheel 7 according to the length of tissue cut, the angle of two driving levers 1 is increased, forces pusher dog 4 to be retracted by otch.Shape and the length adjustment of otch can be affirmed in the quantity of pusher dog 4 and position, directly locating rod 10 are inserted or are extracted in circular trough 9 during grafting pusher dog 4.
Claims (3)
1. a lead screw linkage formula neurosurgery retractor, is characterized in that: comprise and be symmetrical arranged in splay two driving levers (1), leading screw (2), the screw thread of leading screw (2) is divided into two sections of reverse threads (3) in the longitudinal direction; The leading section of two driving levers (1) is all provided with pusher dog (4); The rear end of two driving levers (1) is hinged, and the rear portion of two driving levers (1) respectively has a through hole (5); Two through holes (5) are symmetrical arranged; A sleeve pipe (6) is all hinged with in each through hole (5); The two ends of leading screw (2) are threaded with two sleeve pipes (6) respectively; The middle part of leading screw (2) is fixed with regulating wheel (7).
2. lead screw linkage formula neurosurgery retractor according to claim 1, is characterized in that: the two ends of leading screw (2) are all fixed with the limited cap (8) that a diameter is greater than sleeve pipe (6) bore.
3. lead screw linkage formula neurosurgery retractor according to claim 1, is characterized in that: the leading section of each driving lever (1) all has multiple circular trough (9) straight up; The lower end of pusher dog (4) is provided with at least two locating rods (10) coordinated with circular trough (9) grafting; Each pusher dog (4) is all fixed on corresponding driving lever (1) by locating rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782952.9U CN204336977U (en) | 2014-12-13 | 2014-12-13 | Lead screw linkage formula neurosurgery retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782952.9U CN204336977U (en) | 2014-12-13 | 2014-12-13 | Lead screw linkage formula neurosurgery retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204336977U true CN204336977U (en) | 2015-05-20 |
Family
ID=53220287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420782952.9U Expired - Fee Related CN204336977U (en) | 2014-12-13 | 2014-12-13 | Lead screw linkage formula neurosurgery retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204336977U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104605903A (en) * | 2015-02-12 | 2015-05-13 | 贺新宁 | Minimally invasive surgery opening pressurizer |
| CN106859709A (en) * | 2016-12-28 | 2017-06-20 | 四川大学华西医院 | A kind of cervical vertebra drag hook |
| CN111839625A (en) * | 2020-08-27 | 2020-10-30 | 王倩 | Novel rib retractor |
-
2014
- 2014-12-13 CN CN201420782952.9U patent/CN204336977U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104605903A (en) * | 2015-02-12 | 2015-05-13 | 贺新宁 | Minimally invasive surgery opening pressurizer |
| CN106859709A (en) * | 2016-12-28 | 2017-06-20 | 四川大学华西医院 | A kind of cervical vertebra drag hook |
| CN106859709B (en) * | 2016-12-28 | 2019-04-23 | 四川大学华西医院 | A kind of cervical vertebra drag hook |
| CN111839625A (en) * | 2020-08-27 | 2020-10-30 | 王倩 | Novel rib retractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |