CN210843235U

CN210843235U - Adjustable neurosurgery nerve retractor

Info

Publication number: CN210843235U
Application number: CN201921556978.0U
Authority: CN
Inventors: 刘永; 孙杨; 靳俊功; 王潆; 孟强
Original assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Current assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-06-26
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a regulation formula neurosurgery nerve drag hook, including the couple body, the couple body includes solid end and sets up the cavity end in solid end one side, and fixed cover is served to the cavity is equipped with the handle cover, and the one end fixedly connected with negative pressure ware of cavity end, the cavity is served and is equipped with rotatory lock solid mechanism and with rotatory lock solid mechanism matched with actuating mechanism, rotatory lock solid mechanism includes the pivot of fixed mounting in cavity end one side, and fixed cover is equipped with the rubber sleeve in the pivot, and one side of cavity end is rotated and is installed the swinging head, and solid end fixed cover is established on the swinging head, and the rubber sleeve is located the swinging head. The utility model relates to a rationally, convenient operation is convenient for adjust the contained angle between solid end and the hollow end according to actual need, avoids appearing sheltering from doctor's sight at the in-process that the drag hook body was pull, and is convenient for carry out pulling of different angles to the scalp according to actual need, and the doctor of being convenient for operates, is favorable to using.

Description

Adjustable neurosurgery nerve retractor

Technical Field

The utility model relates to a neurosurgery nerve drag hook technical field especially relates to regulation formula neurosurgery nerve drag hook.

Background

The brain surgery generally refers to neurosurgery, the neurosurgery research scope includes the etiology and pathogenesis of diseases such as congenital dysplasia of nervous system, trauma, infection, tumor, vasculopathy and hereditary metabolic disorder, the brain surgery is a surgical method, the surgery is taken as a main treatment means, a science for researching diseases of brain, spinal cord and peripheral nervous system is adopted, when the brain surgery is performed on a patient clinically, mostly a drag hook is used for dragging a scalp to expose an operation visual field, through retrieval and authorization notice number CN205994529U, the nerve drag hook for the brain surgery is disclosed, which comprises a drag hook main body and a drag hook groove, wherein the drag hook main body is divided into a solid end and a hollow end, the solid end and the hollow end form an angle of 90 degrees and are fixedly connected, a transfusion tube is arranged inside the solid end, a liquid containing groove is arranged at the top of the solid end, the drag hook groove and a probing lamp tube are arranged at the bottom of the solid end, the nerve retractor for cerebral surgery is characterized in that a concave disc is arranged on one side of the hollow end, a concave disc hole is formed in the middle of the concave disc, a handheld handle is arranged in the middle of the hollow end, a rear-end interface is arranged on the other side of the hollow end, and the rear-end interface is connected with a negative pressure device; an additional light source channel is not needed, and unnecessary trauma is reduced; the assistant load is reduced, the labor force of medical staff is liberated, and therefore the problem of high cooperation difficulty caused by multi-person operation is solved.

Above-mentioned patent still has some inadequacies, be not convenient for adjust the contained angle between solid end and the hollow end, it is little according to the wound, the little wicresoft theory of wound, must lead to the limitation in operation space, use the in-process that the scalp was pull to the drag hook, cause the drag hook to block the condition in doctor's operation field of vision easily, and be not convenient for carry out pulling of different angles to the scalp according to actual need, and then influence the doctor operation, reduce the quality that the doctor operates, can not satisfy the user demand, therefore we have proposed regulation formula brain surgery department of neurosurgery drag hook and have been used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an adjustable neurosurgery nerve retractor for brain surgery.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the adjustable neurosurgery nerve retractor comprises a hook body, wherein the hook body comprises a solid end and a hollow end arranged on one side of the solid end, a handle sleeve is fixedly sleeved on the hollow end, a negative pressure device is fixedly connected with one end of the hollow end, a rotary locking mechanism and a driving mechanism matched with the rotary locking mechanism are arranged on the hollow end, the rotary locking mechanism comprises a rotating shaft fixedly installed on one side of the hollow end, a rubber sleeve is fixedly sleeved on the rotating shaft, a rotating pipe is rotatably installed on one side of the hollow end, the solid end is fixedly sleeved on the rotating pipe, the rubber sleeve is positioned in the rotating pipe, a ring groove with one side provided with an opening is formed in the side wall of the rotating pipe, four arc plates are arranged in the rotating pipe and are arranged in a ring shape, the rubber sleeve is positioned among the four arc plates, a plurality of sharp blocks are fixedly installed on one side of the arc plate close to the rubber sleeve, and the sharp ends of, one side of the arc plate far away from the rubber sleeve is fixedly provided with a screw rod, one end of the screw rod far away from the corresponding arc plate extends into the annular groove and is fixedly provided with an installation block, one side of the installation block far away from the corresponding screw rod is fixedly provided with positioning rods, and the rotating pipes are slidably sleeved on the four positioning rods.

Preferably, the driving mechanism comprises four mounting pipes fixedly mounted on the inner wall of one side of the annular groove, the four mounting pipes are arranged in an annular shape, the mounting pipes are sleeved on the corresponding screw rods, one ends, far away from the corresponding arc-shaped plates, of the mounting pipes are rotatably mounted with first bevel gears, the first bevel gears are sleeved on the corresponding screw rods in a threaded manner, one sides of the four first bevel gears are meshed with the same second bevel gear, a connecting pipe is rotatably sleeved in the annular groove, one side, far away from the four first bevel gears, of one end of the connecting pipe and one side, far away from the four first bevel gears, of the second bevel gear, the connecting pipe extends out of the rotating pipe and is fixedly mounted with a knob, and the.

Preferably, the outer side of the rubber sleeve is not in contact with the side wall of the rotating pipe.

Preferably, the side wall of the annular groove is annularly provided with four rectangular grooves, and the side wall of each rectangular groove is in sliding connection with the outer side of the corresponding positioning rod.

Preferably, the side wall of the mounting tube is not in contact with the outer side of the corresponding screw.

Preferably, one side of the first bevel gear, which is close to the corresponding arc-shaped plate, is provided with a threaded hole, and the threaded hole is in threaded connection with the corresponding screw.

Preferably, one side of the first bevel gear, which is far away from the rubber sleeve, is fixedly provided with a circular sliding rail, one end of the installation pipe is provided with a circular sliding groove, and the circular sliding rail is in sliding connection with the corresponding circular sliding groove.

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

the rotary knob is rotated in a forward direction through the second bevel gear on the connecting pipe, the knob drives the four first bevel gears meshed with the knob to rotate, the first bevel gears rotate to drive the corresponding screw to move towards a direction far away from the rubber sleeve, the screw drives the corresponding arc plate to move towards a direction far away from the rubber sleeve, the arc plate drives the corresponding sharp blocks to be separated from the outer side of the rubber sleeve, then the rotary pipe is rotated in the forward direction, the rotary pipe drives the solid end to rotate towards a direction far away from the hollow end, so that an included angle between the solid end and the hollow end is increased, after the adjustment is completed, the rotary pipe is stopped to rotate, then the rotary knob is rotated in a reverse direction, and the moving direction of the rotary knob is opposite to that of the forward direction, the arc-shaped plate drives the corresponding sharp blocks to squeeze the outer side of the rubber sleeve tightly, and the solid end is fixed under the action of friction force of the sharp blocks and the rubber sleeve, so that the adjustment of an included angle between the solid end and the hollow end is completed.

The utility model relates to a rationally, convenient operation is convenient for adjust the contained angle between solid end and the hollow end according to actual need, avoids appearing sheltering from doctor's sight at the in-process that the drag hook body was pull, and is convenient for carry out pulling of different angles to the scalp according to actual need, and the doctor of being convenient for operates, is favorable to using.

Drawings

Fig. 1 is a schematic structural view of an adjustable neurosurgery retractor for brain surgery according to the present invention;

fig. 2 is a schematic sectional structural view of the adjustable neurosurgery nerve retractor for brain surgery of the present invention;

FIG. 3 is a schematic structural view of a portion A of FIG. 2 in an uninstalled state of a second bevel gear;

FIG. 4 is a schematic structural diagram of portion B of FIG. 3;

FIG. 5 is a side cross-sectional structural view of FIG. 1;

fig. 6 is a schematic structural view of a second bevel gear in a mounted state of a portion a in fig. 2.

In the figure: the device comprises a solid end 1, a hollow end 2, a rotating shaft 3, a rubber sleeve 4, a rotating pipe 5, a second bevel gear 6, an annular groove 7, an arc-shaped plate 8, a screw rod 9, a mounting pipe 10, a first bevel gear 11, a mounting block 12, a positioning rod 13, a connecting pipe 14 and a knob 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-6, the adjustable neurosurgery retractor comprises a hook body, the hook body comprises a solid end 1 and a hollow end 2 arranged at one side of the solid end 1, a handle sleeve is fixedly sleeved on the hollow end 2, one end of the hollow end 2 is fixedly connected with a negative pressure device, a rotary locking mechanism and a driving mechanism matched with the rotary locking mechanism are arranged on the hollow end 2, the rotary locking mechanism comprises a rotating shaft 3 fixedly arranged at one side of the hollow end 2, a rubber sleeve 4 is fixedly sleeved on the rotating shaft 3, a rotating pipe 5 is rotatably arranged at one side of the hollow end 2, the solid end 1 is fixedly sleeved on the rotating pipe 5, the rubber sleeve 4 is positioned in the rotating pipe 5, an annular groove 7 with an opening at one side is arranged on the side wall of the rotating pipe 5, four arc plates 8 are arranged in an annular shape in the rotating pipe 5, and the rubber sleeve 4 is positioned between the four arc plates 8, one side fixed mounting that the arc 8 is close to rubber sleeve 4 has a plurality of sharp pieces, the most advanced and the outside in close contact with of rubber sleeve 4 of sharp piece, one side fixed mounting that rubber sleeve 4 was kept away from to arc 8 has screw rod 9, screw rod 9 keeps away from one end of corresponding arc 8 and extends to in ring channel 7 and fixed mounting has installation piece 12, one side fixed mounting that corresponding screw rod 9 was kept away from to installation piece 12 has locating lever 13, the cover is established on four locating levers 13 to the 5 slip cap of swinging head tube, the utility model relates to a rationally, convenient operation, be convenient for adjust the contained angle between solid end 1 and the hollow end 2 according to actual need, avoid appearing sheltering from doctor's sight at the towed in-process of drag hook body, and be convenient for carry out the drawing of different angles to the scalp according to actual need, the doctor's operation of being convenient.

In the utility model, the driving mechanism comprises four mounting pipes 10 fixedly mounted on the inner wall of one side of the ring groove 7, the four mounting pipes 10 are arranged in a ring shape, the mounting pipes 10 are sleeved on the corresponding screw rods 9, one end of each mounting pipe 10 far away from the corresponding arc-shaped plate 8 is rotatably mounted with a first bevel gear 11, the first bevel gear 11 is screwed on the corresponding screw rods 9, one side of each first bevel gear 11 is meshed with a second bevel gear 6, a connecting pipe 14 is rotatably sleeved in the ring groove 7, one end of the connecting pipe 14 is fixedly mounted with one side of the second bevel gear 6 far away from the four first bevel gears 11, one end of the connecting pipe 14 far away from the second bevel gear 6 extends out of the rotating pipe 5 and is fixedly mounted with a knob 15, the connecting pipe 14 is sleeved on the rotating shaft 3, the outer side of the rubber sleeve 4 is not contacted with the side wall of the rotating pipe 5, four rectangular grooves are annularly arranged, the lateral wall of rectangular channel and the outside sliding connection of the locating lever 13 that corresponds, the lateral wall of installation pipe 10 and the outside contactless of the screw rod 9 that corresponds, first bevel gear 11 is close to one side set up threaded hole of the arc 8 that corresponds, threaded hole and the screw rod 9 threaded connection that corresponds, one side fixed mounting that rubber sleeve 4 was kept away from to first bevel gear 11 has ring shape slide rail, and ring shape spout has been seted up to the one end of installation pipe 10, ring shape slide rail and the ring shape spout sliding connection that corresponds, the utility model relates to a rationally, convenient operation, be convenient for adjust the contained angle between solid end 1 and the hollow end 2 according to actual need, avoid appearing sheltering from doctor's sight at the towed in-process of drag hook body, and be convenient for carry out different angles's traction to the scalp according to actual need, the doctor's of being convenient for operates.

Example two

Referring to fig. 1-6, the adjustable neurosurgery retractor comprises a hook body, the hook body comprises a solid end 1 and a hollow end 2 arranged on one side of the solid end 1, a handle sleeve is fixedly sleeved on the hollow end 2 through glue, a negative pressure device is fixed on one end of the hollow end 2 through a thread, a rotary locking mechanism and a driving mechanism matched with the rotary locking mechanism are arranged on the hollow end 2, the rotary locking mechanism comprises a rotating shaft 3 fixed on one side of the hollow end 2 in a welding manner, a rubber sleeve 4 is fixedly sleeved on the rotating shaft 3 through glue, a rotating pipe 5 is rotatably arranged on one side of the hollow end 2 through a first bearing, the solid end 1 is fixedly sleeved on the rotating pipe 5, the rubber sleeve 4 is positioned in the rotating pipe 5, an annular groove 7 with one side provided with an opening is arranged on the side wall of the rotating pipe 5, four arc-shaped plates 8 are arranged in the rotating pipe 5, and, rubber sleeve 4 is located between four arc 8, one side that arc 8 is close to rubber sleeve 4 is fixed with a plurality of sharp pieces through glue bonding, the most advanced of sharp piece and rubber sleeve 4's outside in close contact with, one side welding that rubber sleeve 4 was kept away from to arc 8 has screw rod 9, screw rod 9 keeps away from corresponding arc 8 one end extend to in the ring channel 7 and the welding has installation piece 12, installation piece 12 keeps away from one side welding of corresponding screw rod 9 has locating lever 13, the cover is established on four locating levers 13 to the 5 slip caps of swinging head pipe, the utility model relates to a rationally, convenient operation is convenient for adjust the contained angle between solid end 1 and hollow end 2 according to actual need, avoids appearing sheltering from doctor's sight at the towed in-process of drag hook body, and is convenient for carry out the drawing of different angles to the scalp according to actual need, the doctor's operation of being convenient for, is favorable to use.

In the utility model, the driving mechanism comprises four mounting pipes 10 welded on the inner wall of one side of the ring-shaped groove 7, the four mounting pipes 10 are arranged in a ring shape, the mounting pipes 10 are sleeved on the corresponding screw rods 9, one end of each mounting pipe 10 far away from the corresponding arc-shaped plate 8 is rotatably provided with a first bevel gear 11, the first bevel gear 11 is sleeved on the corresponding screw rod 9 in a threaded manner, one side of each first bevel gear 11 is meshed with a second bevel gear 6, a connecting pipe 14 is rotatably sleeved in the ring-shaped groove 7 through a second bearing, one end of the connecting pipe 14 is welded with one side of the second bevel gear 6 far away from the four first bevel gears 11, one end of the connecting pipe 14 far away from the second bevel gear 6 extends out of the rotating pipe 5 and is welded with a knob 15, the connecting pipe 14 is sleeved on the rotating shaft 3, the outer side of the rubber sleeve 4 is not contacted with the side wall of the rotating pipe 5, the lateral wall of rectangular channel and the outside sliding connection of the locating lever 13 that corresponds, the lateral wall of installation pipe 10 and the outside contactless of the screw rod 9 that corresponds, first bevel gear 11 is close to one side set up threaded hole of the arc 8 that corresponds, threaded hole and the screw rod 9 threaded connection that corresponds, and first bevel gear 11 has the ring shape slide rail near one side welding of rubber sleeve 4, and the ring shape spout has been seted up to the one end of installation pipe 10, ring shape slide rail and the ring shape spout sliding connection that corresponds, the utility model relates to a rationally, convenient operation, be convenient for adjust the contained angle between solid end 1 and the hollow end 2 according to actual need, avoid appearing sheltering from doctor's sight at the towed in-process of drag hook body, and be convenient for carry out the drawing of different angles to the scalp according to actual need, the doctor's of being convenient for operates.

The working principle is as follows: when the angle adjusting device is used, when an included angle between the solid end 1 and the hollow end 2 needs to be adjusted according to actual needs, the knob 15 is rotated in a forward direction, the knob 15 drives the connecting pipe 14 to rotate, the connecting pipe 14 drives the second bevel gear 6 to rotate, the second bevel gear 6 drives the four first bevel gears 11 engaged with the second bevel gear to rotate, under the action of a threaded hole formed in one side of the first bevel gear 11, the first bevel gear 11 rotates to drive the corresponding screw 9 to move towards a position far away from the rubber sleeve 4, the screw 9 drives the corresponding mounting block 12 to move towards a direction far away from the rubber sleeve 4, the mounting block 12 drives the corresponding positioning rod 13 to slide in the rectangular groove, meanwhile, the screw 9 drives the corresponding arc plate 8 to move towards a direction far away from the rubber sleeve 4, the arc plate 8 drives the corresponding sharp blocks to be separated from the outer side of the rubber sleeve 4, and further the fixation of the rotating pipe 5 is released, then the rotating pipe 5 is rotated forwards, the rotating pipe 5 drives the solid end 1 to rotate leftwards, so that the included angle between the solid end 1 and the hollow end 2 is enlarged, after the adjustment is finished, the rotation of the rotating tube 5 is stopped, and then the knob 15 is rotated in the reverse direction, which is the same as the movement direction of the knob 15 rotated in the forward direction, so that the arc-shaped plate 8 drives the corresponding plurality of the sharp blocks to move towards the direction close to the rubber sleeve 4, the sharp ends of the plurality of the sharp blocks are used for tightly extruding the outer side of the rubber sleeve 4, under the action of the friction force between the sharp block and the rubber sleeve 4, the rotating pipe 5 is fixed, and further the solid end 1 is fixed, the included angle between the solid end 1 and the hollow end 2 is adjusted conveniently according to actual needs, the view of a doctor is prevented from being shielded in the traction process of the drag hook body, traction of different angles is conveniently carried out on the scalp according to actual needs, and the doctor can perform surgery conveniently.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The adjustable neurosurgery nerve retractor comprises a hook body, wherein the hook body comprises a solid end and a hollow end arranged on one side of the solid end, a handle sleeve is fixedly sleeved on the hollow end, and one end of the hollow end is fixedly connected with a negative pressure device, the neurosurgery nerve retractor is characterized in that the hollow end is provided with a rotary locking mechanism and a driving mechanism matched with the rotary locking mechanism, the rotary locking mechanism comprises a rotating shaft fixedly arranged on one side of the hollow end, a rubber sleeve is fixedly sleeved on the rotating shaft, a rotating pipe is rotatably arranged on one side of the hollow end, the solid end is fixedly sleeved on the rotating pipe, the rubber sleeve is positioned in the rotating pipe, a ring groove with one side provided with an opening is arranged on the side wall of the rotating pipe, four arc-shaped plates are arranged in the rotating pipe, the four arc-shaped plates are arranged in a ring shape, the rubber sleeve is positioned between the four arc-shaped, the most advanced of point piece and the outside in close contact with of rubber sleeve, one side fixed mounting that the rubber sleeve was kept away from to the arc has the screw rod, and the one end that the corresponding arc was kept away from to the screw rod extends to in the ring channel and fixed mounting has the installation piece, and one side fixed mounting that the corresponding screw rod was kept away from to the installation piece has the locating lever, and the rotating-tube slip cap is established on four locating levers.

2. The adjustable neurosurgical retractor for the brain surgery according to claim 1, wherein the driving mechanism comprises four mounting tubes fixedly mounted on an inner wall of one side of the annular groove, the four mounting tubes are arranged in an annular shape, the mounting tubes are sleeved on corresponding screw rods, one ends of the mounting tubes far away from the corresponding arc plates are rotatably mounted with first bevel gears, the first bevel gears are in threaded sleeve connection with the corresponding screw rods, one side of each of the four first bevel gears is meshed with a same second bevel gear, a connecting tube is rotatably sleeved in the annular groove, one ends of the connecting tubes and one sides of the second bevel gears far away from the four first bevel gears are fixedly mounted, one ends of the connecting tubes far away from the second bevel gears extend out of the rotating tubes and are fixedly mounted with knobs, and the connecting tubes are sleeved on the rotating.

3. The adjustable neurosurgical retractor of claim 1 wherein the outer side of the rubber sleeve is not in contact with the side wall of the rotating tube.

4. The adjustable neurosurgical retractor for the brain surgery according to claim 1, wherein four rectangular grooves are annularly formed in the side wall of the annular groove, and the side wall of each rectangular groove is slidably connected with the outer side of the corresponding positioning rod.

5. The adjustable neurosurgical retractor of claim 2 wherein the side walls of the mounting tube do not contact the outside of the respective threaded rod.

6. The adjustable neurosurgical retractor for the brain surgery according to claim 2, wherein one side of the first bevel gear, which is close to the corresponding arc-shaped plate, is provided with a threaded hole, and the threaded hole is in threaded connection with the corresponding screw rod.

7. The adjustable neurosurgical retractor for the brain surgery according to claim 2, wherein a circular sliding rail is fixedly installed on one side of the first bevel gear, which is far away from the rubber sleeve, one end of the installation pipe is provided with a circular sliding groove, and the circular sliding rail is in sliding connection with the corresponding circular sliding groove.