CN214678944U

CN214678944U - Retractor for neurosurgery operation

Info

Publication number: CN214678944U
Application number: CN202023262551.5U
Authority: CN
Inventors: 王利
Original assignee: Air Force Medical University of PLA
Current assignee: Air Force Medical University of PLA
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-12
Anticipated expiration: 2030-12-29

Abstract

The utility model provides a retractor for neurosurgery, which comprises a retractor part, wherein the retractor part comprises an outer ring, a retractor assembly and an arc auxiliary sheet; a plurality of cavities are formed in the outer circular ring, the retracting assembly comprises a plurality of groups of adjusting assemblies and retracting claws which are fixedly connected, a plurality of groups of arc-shaped auxiliary pieces are detachably connected with the retracting claws, and the adjusting assemblies are movably connected with the outer circular ring; the two groups of binding bands are respectively fixedly connected to the two ends of the outer circular ring; adjust through adjusting part and lead out the claw, avoid manual too big secondary injury that brings of dynamics of leading out, secondly through supplementary flat wound lifting surface area that enlarges of arc, reduce the dynamics on the single stress point.

Description

Retractor for neurosurgery operation

Technical Field

The utility model relates to the technical field of medical supplies, concretely relates to neurosurgery is with leading out device.

Background

When the skull or vertebra operation of neurosurgery is carried out, in order to expose the focus, the operation is needed, the skin and muscle tissues at the knife edge need to be pulled towards two sides by external force, so that a visual field range with a certain area is formed at the wound, the exposure of the nerve tissues is facilitated, and the doctor can see clearly and carry out the operation in the wound. At the moment, the retractor is required to be used for assisting the operation, the retractor can be used for retracting tissues, exposing the operation field and facilitating exploration and operation, the common retractor is made by utilizing the lever principle, is similar to a scissors in shape, one end of the common retractor is provided with a positioning device, the other end of the common retractor is provided with a rake-shaped structure which can extend into a wound, and part of the common retractor is retracted in a mode of being pulled open and fixed by a poking claw. However, the former needs an assistant to hold the retractor for a long time and keep the posture, and is difficult to keep a state of standing still in the process, while the latter is manually retracted by medical staff, so that the retracting force is difficult to ensure, the situation that the patient is damaged secondarily due to overlarge force is easy to occur, and the wound cannot be adjusted properly, and the stress points of the mode are usually concentrated on a plurality of pusher dogs, so that the contact position of the pusher dogs is damaged deeply due to long-time operation.

In view of the foregoing, there is a need for a retractor device for neurosurgery.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a convenient fixed, can freely adjust the pull-out dynamics and have the neural surgery operation of many stress points with leading out the device.

In order to achieve the above object, the utility model adopts the technical scheme that a neurosurgery is with leading out device includes:

the retracting part comprises an outer ring, a retracting assembly and an arc auxiliary sheet; a plurality of cavities are arranged in the outer circular ring, the retracting assembly comprises a plurality of groups of adjusting assemblies and retracting claws which are fixedly connected, a plurality of groups of arc-shaped auxiliary sheets are detachably connected with the retracting claws, and the adjusting assemblies are movably connected with the outer circular ring;

the bandage, the bandage is equipped with two sets ofly, and it is fixed connection respectively in outside ring both ends.

Preferably, the cavity comprises a circular cavity and a strip-shaped cavity which are integrally formed, and the front end and the rear end of the strip-shaped cavity penetrate through the inner wall and the outer wall of the outer circular ring.

Preferably, the adjusting component comprises a rotary handle, a gear and a rack, the gear is located in the circular cavity, the rack is located in the bar-shaped cavity and is meshed with the gear, the rotary handle is located on the outer circular ring, the rotary handle penetrates through the top wall of the outer circular ring and is fixedly connected with the gear, and the rotary handle is in threaded connection with the outer circular ring.

Preferably, the retracting claw comprises a rectangular connecting block and an arc-shaped claw, the arc-shaped claw is fixedly connected to the bottom of the rectangular connecting block, and two rectangular grooves are formed in the rectangular connecting block.

Preferably, the arc-shaped auxiliary sheet is of an inverted convex shape, rectangular convex blocks are arranged at the bottoms of the convex parts at the two ends of the arc-shaped auxiliary sheet, and the rectangular convex blocks are matched and connected with the rectangular grooves.

Preferably, the two groups of straps are connected by the magic tapes on the side far away from the outer ring, and the inner sides of the straps are provided with air bags.

Preferably, the bandage is provided with an inflation and deflation port, and the inflation and deflation port is fixedly connected with the air bag.

Preferably, the arc-shaped auxiliary piece is made of elastic plastic materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a neurosurgery is with leading out device, being equipped with of its adjusting part can make medical personnel adjust the dynamics of leading out size through rotating the handle, and then adjust the wound size, and it has avoided the simple manpower to adjust the too big condition that causes the damage to the patient of dynamics that appears.

2. The utility model discloses a neurosurgery is with leading out device, its arc auxiliary plate uses the wound to a plurality of claws and arc auxiliary plates of leading out with the reaction force evenly distributed that lead out the device to the claw and the arc auxiliary plate of leading out with the cooperation of leading out the claw, avoids single impetus to go up the dynamics too big, can both produce certain guard action to patient and device.

Drawings

Fig. 1 is a schematic view of the overall structure of the retractor device for neurosurgery provided by the present invention;

fig. 2 is a schematic structural view of a retracting claw in the embodiment of the present invention;

fig. 3 is a schematic sectional view of the retractor according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic structural view of an arc-shaped auxiliary plate in an embodiment of the present invention;

description of reference numerals:

1. a retracting part; 10. an outer ring; 101. a cavity; 1010. a circular cavity; 1011. a strip-shaped cavity; 11. a retraction assembly; 110 an adjustment assembly; 1101. turning a handle; 1102. a gear; 1103. a rack; 111. retracting the claws; 1110. a rectangular connecting block; 11101. a rectangular groove; 1111. an arc-shaped claw; 12. an arc-shaped auxiliary sheet; 120. a rectangular bump;

2. binding bands; 20. an air bag; 21. an air discharge port;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-5, a retractor device for neurosurgery comprises:

the retractor part 1 comprises an outer ring 10, a retractor assembly 11 and an arc auxiliary sheet 12; a plurality of cavities 101 are formed in the outer circular ring 10, the retracting assembly 11 comprises a plurality of groups of adjusting assemblies 110 and retracting claws 111 which are fixedly connected, a plurality of groups of arc-shaped auxiliary pieces 12 are arranged and detachably connected with the retracting claws 111, and the adjusting assemblies 110 are movably connected with the outer circular ring 10;

and two groups of binding bands 2 are arranged, and are respectively and fixedly connected to two ends of the outer circular ring 10.

When the bandage is used specifically, the bandage 2 is firstly tied on the body of a patient, the wound of the patient is positioned in the middle of the outer side circular ring 2, then the air bag 20 is inflated by the external air pump, the air bags 20 on the two bandage 2 are uniformly inflated until the bandage 2 is only tied on the body of the patient, at the moment, the outer side circular ring 10 cannot shake easily, and the risk that the bandage 2 ties the body of the patient cannot be generated due to the existence of the air bags 20;

then the arc-shaped auxiliary sheet 12 is taken down, the retracting claw 111 is manually inserted into the wound of a patient, then the rotating handle 1101 is rotated, the rotating handle 1101 rotates the gear 1102 in the cavity 101, the gear 1102 rotates the rack 1103 meshed with the gear 1102 to move, the moving of the rack 1103 drives the retracting claw 111 at the other end to retract the wound of the patient through the retracting claw 111, the speed is uniform firstly in the mode that the retracting claw 111 is pulled through multiple linkage of the rotating handle 1101, the retracting force is convenient to adjust by medical staff, and then the shape of the retracting claw 111 can be changed by adjusting the retracting amount of the retracting claws 111 to meet the requirements of the medical staff;

after the wound is retracted through the retracting claw 111, in order to avoid that the reaction force of the wound of the patient only exerts force on the retracting claw 111, the rectangular convex block 120 on one side of the arc-shaped auxiliary sheet 12 is inserted into the rectangular groove 11101 on the rectangular connecting block 1110, the rectangular convex block 120 on the other side of the arc-shaped auxiliary sheet 12 is inserted into the rectangular groove 11101 on the adjacent rectangular connecting block 1110, attention is paid to enable the concave surface of the arc-shaped auxiliary sheet 12 to face the wound, the mounted arc-shaped auxiliary sheet 12 is attached to the skin at the wound, part of the reaction force generated by the wound can be shared by the retracting claw 111, and the injury of the retracting claw 111 to the skin at the wound is indirectly reduced.

Specifically, the cavity 101 includes a circular cavity 1010 and a strip-shaped cavity 1011 formed integrally, and the front end and the rear end of the strip-shaped cavity 1011 penetrate through the inner wall and the outer wall of the outer circular ring 10.

Specifically, the adjusting assembly 110 comprises a rotary handle 1101, a gear 1102 and a rack 1103, the gear 1102 is located in the circular cavity 1010, the rack 1103 is located in the bar-shaped cavity 1011 and is engaged with the gear 1102, the rotary handle 1101 is located on the outer ring 10, penetrates through the top wall of the outer ring 10 and is fixedly connected with the gear 1102, and is in threaded connection with the outer ring 10; the gear 1102 in the circular cavity 1010 is controlled by the rotary handle 1101 on the outer side of the top wall of the circular cavity 1010, the gear 1102 rotates to drive the rack 1103 in the bar-shaped cavity 1011 to move, and then the retracting claw 111 is driven to move, and the traditional manual retracting mode is replaced by mechanical adjustment, so that the retracting force is controlled conveniently.

Specifically, the retracting claw 111 comprises a rectangular connecting block 1110 and an arc-shaped claw 1111, the arc-shaped claw 1111 is fixedly connected to the bottom of the rectangular connecting block 1110, and two rectangular grooves 11101 are formed in the rectangular connecting block 1110.

Specifically, the arc-shaped auxiliary piece 12 is of an inverted convex shape, the bottom of the convex part at two ends of the arc-shaped auxiliary piece is provided with a rectangular convex block 120, and the rectangular convex block 120 is connected with the rectangular groove 11101 in a matching manner;

fix supplementary piece 12 of arc through the rectangle recess 11101 on the rectangle connecting block 1110 on retracting the claw 111, and disperse the reaction force of wound department through the supplementary piece 12 of installation arc, avoid the impetus to concentrate on arc claw 1111, cause the injury to patient's wound department skin or arc claw 1111.

Specifically, two sets of 2 bandage keep away from one side magic subsides of outside ring 10 are connected, just 2 inboard of bandage are equipped with gasbag 20.

Specifically, the binding band 2 is provided with an inflation and deflation port 21, and the inflation and deflation port 21 is fixedly connected with the air bag 20;

the air bag 20 in the bandage 2 is inflated through the inflation and deflation port 21, the air bag 20 avoids the direct tightening injury of the bandage 2 to the patient, and the air bag can flexibly play a role of fixing the retracting part 1 according to different statures of different patients.

Specifically, the arc-shaped auxiliary piece 12 is made of an elastic plastic material; because the different deformation that needs the supplementary piece 12 of arc to produce of wound shape size, and need share certain wound reaction force, need certain thickness, the above-mentioned problem can perfectly be solved to the elastic plastic material.

The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A neurosurgical retraction device, comprising:

the retractor comprises a retractor part (1), wherein the retractor part (1) comprises an outer circular ring (10), a retractor assembly (11) and an arc auxiliary sheet (12); a plurality of cavities (101) are formed in the outer circular ring (10), the retracting assembly (11) comprises a plurality of groups of adjusting assemblies (110) and retracting claws (111) which are fixedly connected, a plurality of groups of arc-shaped auxiliary sheets (12) are detachably connected with the retracting claws (111), and the adjusting assemblies (110) are movably connected with the outer circular ring (10);

the binding bands (2) are arranged in two groups, and the two groups of binding bands (2) are fixedly connected to the two ends of the outer circular ring (10) respectively.

2. A neurosurgical retraction device as claimed in claim 1, wherein:

the cavity (101) comprises a circular cavity (1010) and a strip-shaped cavity (1011) which are integrally formed, and the front end and the rear end of the strip-shaped cavity (1011) penetrate through the inner wall and the outer wall of the outer circular ring (10).

3. A neurosurgical retraction device as claimed in claim 2, wherein:

the adjusting assembly (110) comprises a rotary handle (1101), a gear (1102) and a rack (1103), the gear (1102) is located in the circular cavity (1010), the rack (1103) is located in the strip-shaped cavity (1011) and meshed with the gear (1102), the rotary handle (1101) is located on the outer circular ring (10), penetrates through the top wall of the outer circular ring (10) and then is fixedly connected with the gear (1102), and the rotary handle is in threaded connection with the outer circular ring (10).

4. A neurosurgical retraction device as claimed in claim 3, wherein:

draw out claw (111) including rectangle connecting block (1110) and arc claw (1111), arc claw (1111) fixed connection in rectangle connecting block (1110) bottom, be equipped with two rectangle recesses (11101) on rectangle connecting block (1110).

5. A neurosurgical retraction device according to claim 4, wherein:

the arc-shaped auxiliary sheet (12) is of an inverted convex shape, rectangular convex blocks (120) are arranged at the bottoms of the convex parts at the two ends of the arc-shaped auxiliary sheet, and the rectangular convex blocks (120) are matched and connected with the rectangular grooves (11101).

6. A neurosurgical retraction device as claimed in claim 1, wherein:

two sets of bandage (2) are kept away from one side magic subsides of outside ring (10) are connected, just bandage (2) inboard is equipped with gasbag (20).

7. A neurosurgical retraction device according to claim 6, wherein: the bandage (2) is provided with an air inflation and deflation port (21), and the air inflation and deflation port (21) is fixedly connected with the air bag (20).

8. A neurosurgical retraction device as claimed in claim 1, wherein: the arc-shaped auxiliary sheet (12) is made of elastic plastic materials.