CN210843235U - Adjustable neurosurgery nerve retractor - Google Patents

Abstract

The utility model discloses an adjustable brain surgery nerve retractor, which comprises a hook body, 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 handle sleeve. Negative pressure device, the hollow end is provided with a rotary locking mechanism and a driving mechanism matched with the rotary locking mechanism, the rotary locking mechanism includes a rotating shaft fixedly installed on one side of the hollow end, and the rotating shaft is fixedly sleeved with A rubber sleeve, one side of the hollow end is rotatably installed with a rotating pipe, the solid end is fixedly sleeved on the rotating pipe, and the rubber sleeve is located in the rotating pipe. The utility model has reasonable design and convenient operation, which is convenient to adjust the angle between the solid end and the hollow end according to actual needs, avoids blocking the doctor's sight during the pulling process of the retractor body, and facilitates the operation of the scalp according to actual needs. Different angles of traction are convenient for doctors to operate and use.

Description

Adjustable brain surgery nerve retractor

technical field

The utility model relates to the technical field of neurological retractors for brain surgery, in particular to an adjustable neurological retractor for brain surgery.

Background technique

Brain surgery generally refers to neurosurgery. The scope of neurosurgery research includes the etiology and pathogenesis of diseases such as congenital developmental abnormalities of the nervous system, trauma, infections, tumors, vascular lesions, and genetic metabolic disorders. With surgery as the main treatment method, it is a science that studies diseases of the brain, spinal cord and peripheral nervous system. Clinically, when performing brain surgery on patients, most of the patients are used to pull the scalp to expose the surgical field. After retrieval, the authorization announcement number CN205994529U, Disclosed is a nerve retractor for brain surgery, comprising a retractor main body and a retractor groove, the retractor main body is divided into a solid end and a hollow end, the solid end and the hollow end are at an angle of 90 degrees and are fixedly connected, and the The inside of the solid end is provided with an infusion tube, the top of the solid end is provided with a liquid holding tank, the bottom of the solid end is provided with the hook groove and the searchlight tube, one side of the hollow end is provided with a concave plate, and the middle of the concave plate is provided with The concave plate hole, the middle part of the hollow end is provided with a hand-held handle, the other side of the hollow end is provided with a rear end interface, and the rear end interface is connected to a negative pressure device, this kind of nerve retractor for brain surgery can be used for traction, suction and The injection operations do not interfere with each other, reducing the possibility of errors; no additional light source channels are needed, reducing unnecessary trauma; reducing the load of assistants and liberating the labor force of medical staff, thereby solving the problem of difficult collaboration caused by multi-person operations.

The above patent still has some shortcomings, and it is inconvenient to adjust the angle between the solid end and the hollow end. According to the minimally invasive concept of small wound and minimal trauma, it will inevitably lead to the limitation of the operation space. In the process of using the retractor to pull the scalp , it is easy to cause the retractor to block the doctor's surgical field of vision, and it is not convenient to pull the scalp at different angles according to actual needs, which will affect the doctor's operation, reduce the quality of the doctor's operation, and cannot meet the needs of use. Therefore, we propose an adjustable brain surgery. The nerve retractor is used to solve the above problems.

Utility model content

The purpose of the utility model is to solve the shortcomings of the prior art, and propose an adjustable brain surgery nerve retractor.

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

The adjustable neurological retractor for brain surgery includes a hook body, the hook body includes 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 a negative pressure device is fixedly connected to one end of the hollow end. The hollow end is provided with a rotating locking mechanism and a driving mechanism matched with the rotating locking mechanism. The rotating locking mechanism includes a rotating shaft fixedly installed on one side of the hollow end, and a rubber sleeve is fixed on the rotating shaft. A rotating tube is rotatably installed on one side, the solid end is fixedly sleeved on the rotating tube, the rubber sleeve is located in the rotating tube, the side wall of the rotating tube is provided with an annular groove with an opening on one side, and four arc-shaped plates are arranged in the rotating tube. The four arc-shaped plates are arranged in a ring shape, and the rubber sleeve is located between the four arc-shaped plates. A plurality of pointed blocks are fixedly installed on the side of the arc-shaped plate close to the rubber sleeve. The tips of the pointed blocks are in close contact with the outer side of the rubber sleeve. A screw rod is fixedly installed on the side of the shaped plate away from the rubber sleeve, the end of the screw rod away from the corresponding arc-shaped plate extends into the annular groove and a mounting block is fixedly installed, and a positioning rod is fixedly installed on the side of the mounting block away from the corresponding screw rod. The tube is slidably sleeved on the four positioning rods.

Preferably, the driving mechanism includes four installation pipes fixedly installed on the inner wall of one side of the annular groove, the four installation pipes are arranged in a ring shape, the installation pipes are sleeved on the corresponding screw rods, and the installation pipes are far away from the corresponding arc plate. One end is rotatably installed with a first bevel gear, the first bevel gear is threadedly sleeved on the corresponding screw, one side of the four first bevel gears is meshed with the same second bevel gear, and the annular groove is rotated and sleeved There is a connecting pipe, one end of the connecting pipe is fixedly installed with the side of the second bevel gear away from the four first bevel gears, and the end of the connecting pipe away from the second bevel gear extends to the outside of the rotating pipe and is fixedly installed with a knob, connecting The tube is sleeved on the rotating shaft.

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

Preferably, four rectangular grooves are annularly formed on the side walls of the annular grooves, and the side walls of the rectangular grooves are slidably connected to the outer sides of the corresponding positioning rods.

Preferably, the side wall of the installation pipe is not in contact with the outer side of the corresponding screw.

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

Preferably, an annular slide rail is fixedly installed on the side of the first bevel gear away from the rubber sleeve, and one end of the installation pipe is provided with an annular slide slot, and the annular slide rail is connected to the corresponding annular slide slot. Slide to connect.

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

Through the solid end, the hollow end, the rotating shaft, the rubber sleeve, the rotating tube, the second bevel gear, the annular groove, the arc plate, the screw, the mounting tube, the first bevel gear, the mounting block, the positioning rod, the connecting tube and the knob Cooperate, turn the knob in the positive direction, the knob drives the four first bevel gears meshing with it to rotate through the second bevel gear on the connecting pipe, and the rotation of the first bevel gear drives the corresponding screw to move away from the rubber sleeve. , the screw drives the corresponding arc-shaped plate to move away from the rubber sleeve, the arc-shaped plate drives the corresponding multiple pointed blocks to separate from the outer side of the rubber sleeve, and then rotates the rotating tube in a positive direction, and the rotating tube drives the solid end away from the hollow end. Rotate in the opposite direction, so that the angle between the solid end and the hollow end becomes larger. After the adjustment is completed, stop rotating the rotating tube, and then turn the knob in the opposite direction. The corresponding plurality of pointed blocks squeeze the outer side of the rubber sleeve, and under the action of the frictional force between the pointed block and the rubber sleeve, the solid end is fixed, thereby completing the angle adjustment between the solid end and the hollow end.

The utility model has reasonable design and convenient operation, which is convenient to adjust the angle between the solid end and the hollow end according to actual needs, avoids blocking the doctor's sight during the pulling process of the retractor body, and facilitates the operation of the scalp according to actual needs. Different angles of traction are convenient for doctors to operate and use.

Description of drawings

Fig. 1 is the structural representation of the adjustable brain surgery nerve retractor proposed by the utility model;

Fig. 2 is the sectional structure schematic diagram of the adjustable brain surgery nerve retractor proposed by the utility model;

FIG. 3 is a schematic structural diagram of the second bevel gear of the part A in FIG. 2 in an unmounted state;

Fig. 4 is the structural representation of part B in Fig. 3;

Fig. 5 is the side sectional structure schematic diagram of Fig. 1;

FIG. 6 is a schematic structural diagram of the installation state of the second bevel gear in part A of FIG. 2 .

In the figure: 1 solid end, 2 hollow end, 3 rotating shaft, 4 rubber sleeve, 5 rotating tube, 6 second bevel gear, 7 annular groove, 8 arc plate, 9 screw, 10 installation tube, 11 first bevel Gears, 12 mounting blocks, 13 positioning rods, 14 connecting pipes, 15 knobs.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Example 1

1-6, the adjustable brain surgery nerve retractor includes a hook body, the hook body includes a solid end 1 and a hollow end 2 arranged on one side of the solid end 1, the hollow end 2 is fixedly sleeved with a handle cover, and the hollow end 2 A negative pressure device is fixedly connected to one end of the hollow end 2, and 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 includes a rotating shaft 3 fixedly installed on one side of the hollow end 2. The upper fixed sleeve is provided with a rubber sleeve 4, one side of the hollow end 2 is rotatably installed with a rotating pipe 5, the solid end 1 is fixedly sleeved on the rotating pipe 5, the rubber sleeve 4 is located in the rotating pipe 5, and the side wall of the rotating pipe 5 is installed. There is an annular groove 7 with an opening on one side, and four arc-shaped plates 8 are arranged in the rotating tube 5. The four arc-shaped plates 8 are arranged in a ring shape, and the rubber sleeve 4 is located between the four arc-shaped plates 8. The arc-shaped plates 8 A plurality of pointed blocks are fixedly installed on the side close to the rubber sleeve 4, and the tips of the pointed blocks are in close contact with the outer side of the rubber sleeve 4. The side of the arc plate 8 away from the rubber sleeve 4 is fixedly installed with a screw 9, and the screw 9 is far away from the corresponding One end of the arc-shaped plate 8 extends into the annular groove 7 and is fixedly installed with a mounting block 12. The side of the mounting block 12 away from the corresponding screw 9 is fixedly mounted with a positioning rod 13, and the rotating tube 5 is slidably sleeved on the four positioning rods 13. On the other hand, the utility model has reasonable design and convenient operation, which is convenient to adjust the angle between the solid end 1 and the hollow end 2 according to actual needs, avoids blocking the doctor's sight during the pulling process of the retractor body, and is convenient according to the actual situation. The scalp needs to be pulled at different angles, which is convenient for doctors to operate and use.

In the present invention, the driving mechanism includes four installation pipes 10 fixedly installed on the inner wall of one side of the annular groove 7, the four installation pipes 10 are arranged in a ring shape, the installation pipes 10 are sleeved on the corresponding screw rods 9, and the installation pipes 10 are far away from One end of the corresponding arc-shaped plate 8 is rotatably installed with a first bevel gear 11, the first bevel gear 11 is threadedly sleeved on the corresponding screw 9, and one side of the four first bevel gears 11 is engaged with the same first bevel gear 11. Two bevel gears 6, a connecting pipe 14 is rotatably sleeved in the annular groove 7, one end of the connecting pipe 14 is fixedly installed with the side of the second bevel gear 6 away from the four first bevel gears 11, and the connecting pipe 14 is away from the first bevel gear 11. One end of the two bevel gears 6 extends to the outside of the rotating tube 5 and a knob 15 is fixedly installed. The connecting tube 14 is sleeved on the rotating shaft 3, the outer side of the rubber sleeve 4 does not contact the side wall of the rotating tube 5, and the side of the annular groove 7 Four rectangular grooves are formed on the wall in a ring shape. The side walls of the rectangular grooves are slidably connected to the outer sides of the corresponding positioning rods 13. The side walls of the mounting pipes 10 are not in contact with the outer sides of the corresponding screw rods 9. One side of the corresponding arc-shaped plate 8 is provided with a threaded hole, and the threaded hole is threadedly connected with the corresponding screw 9. The side of the first bevel gear 11 away from the rubber sleeve 4 is fixedly installed with an annular slide rail. One end is provided with a circular chute, and the circular slide rail is slidably connected with the corresponding circular chute. The utility model has reasonable design and convenient operation, which facilitates the clamping between the solid end 1 and the hollow end 2 according to actual needs. The angle is adjusted to avoid blocking the doctor's sight during the pulling process of the retractor body, and it is convenient to carry out different angles of pulling the scalp according to actual needs, which is convenient for the doctor's operation and convenient for use.

Embodiment 2

1-6, the adjustable brain surgery nerve retractor includes a hook body, and the hook body includes a solid end 1 and a hollow end 2 arranged on one side of the solid end 1. One end of the end 2 is threadedly fixed with a negative pressure device, and the hollow end 2 is provided with a rotary locking mechanism and a driving mechanism matched with the rotary locking mechanism. The rotating shaft 3 is provided with a rubber sleeve 4 through a fixed sleeve with glue, one side of the hollow end 2 is rotatably installed with a rotating pipe 5 through a first bearing, the solid end 1 is fixedly sleeved on the rotating pipe 5, and the rubber sleeve 4 is located in the rotating pipe 5. , the side wall of the rotating pipe 5 is provided with an annular groove 7 with an opening on one side, and four arc-shaped plates 8 are arranged in the rotating pipe 5. The four arc-shaped plates 8 are arranged in a ring shape, and the rubber sleeve 4 is located in the four arc-shaped Between the plates 8, the side of the arc-shaped plate 8 close to the rubber sleeve 4 is fixed with a plurality of pointed blocks through glue, and the tips of the pointed blocks are in close contact with the outer side of the rubber sleeve 4, and the arc-shaped plate 8 is far away from the rubber sleeve 4. A screw 9 is welded on the side, and one end of the screw 9 away from the corresponding arc-shaped plate 8 extends into the annular groove 7 and is welded with a mounting block 12. The side of the mounting block 12 away from the corresponding screw 9 is welded with a positioning rod 13. The sliding sleeves are set on the four positioning rods 13. The utility model has reasonable design and convenient operation, which is convenient to adjust the angle between the solid end 1 and the hollow end 2 according to actual needs, so as to avoid blocking during the pulling process of the hook body. It can keep the doctor's sight, and it is convenient to perform different angles of traction on the scalp according to actual needs, which is convenient for the doctor to operate and is beneficial to use.

In the present invention, the driving mechanism includes four installation pipes 10 welded on the inner wall of one side of the annular groove 7. The four installation pipes 10 are arranged in a ring shape. One end of the arc-shaped plate 8 is rotatably installed with a first bevel gear 11, the first bevel gear 11 is threadedly sleeved on the corresponding screw 9, and one side of the four first bevel gears 11 is meshed with the same second bevel gear 11. The bevel gear 6, the annular groove 7 is provided with a connecting pipe 14 through the second bearing. One end of the connecting pipe 14 is welded with the side of the second bevel gear 6 away from the four first bevel gears 11. The end of 14 away from the second bevel gear 6 extends to the outside 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 in contact with the side wall of the rotating pipe 5, and the annular groove 7 Four rectangular grooves are annularly opened on the side wall of the groove, the side wall of the rectangular groove is slidably connected with the outer side of the corresponding positioning rod 13, the side wall of the mounting pipe 10 is not in contact with the outer side of the corresponding screw 9, and the first bevel gear 11 is provided with a threaded hole on one side close to the corresponding arc-shaped plate 8, and the threaded hole is threadedly connected with the corresponding screw 9. The side of the first bevel gear 11 close to the rubber sleeve 4 is welded with an annular slide rail, and the installation pipe 10 One end is provided with an annular sliding groove, and the annular sliding rail is slidably connected with the corresponding annular sliding groove. The included angle is adjusted to avoid blocking the doctor's sight during the pulling process of the retractor body, and it is convenient to perform different angles of pulling on the scalp according to actual needs, which is convenient for the doctor to operate and use.

Working principle: When in use, when the angle between the solid end 1 and the hollow end 2 needs to be adjusted according to actual needs, turn the knob 15 in the forward direction, the knob 15 drives the connecting tube 14 to rotate, and the connecting tube 14 drives the second umbrella shape When the gear 6 rotates, the second bevel gear 6 drives the four first bevel gears 11 meshing with it to rotate, and the first bevel gear 11 rotates under the action of the threaded hole opened on one side of the first bevel gear 11 Drive the corresponding screw 9 to move away from the rubber sleeve 4 , the screw 9 drives the corresponding mounting block 12 to move away from the rubber sleeve 4 , the mounting block 12 drives the corresponding positioning rod 13 to slide in the rectangular groove, and the screw 9 The corresponding arc-shaped plate 8 is driven to move away from the rubber sleeve 4, and the arc-shaped plate 8 drives the corresponding plurality of pointed blocks to separate from the outer side of the rubber sleeve 4, thereby releasing the fixing of the rotating tube 5, and then rotating in the forward direction. Rotate the pipe 5, the rotating pipe 5 drives the solid end 1 to rotate to the left, so that the angle between the solid end 1 and the hollow end 2 becomes larger. Similarly, the movement direction of the forward rotation knob 15 is opposite, so that the arc-shaped plate 8 drives the corresponding plurality of pointed blocks to move toward the direction close to the rubber sleeve 4, so that the tips of the multiple pointed blocks all squeeze the outer side of the rubber sleeve 4. Under the action of the friction between the tip block and the rubber sleeve 4, the rotating tube 5 is fixed, and then the solid end 1 is fixed, so that it is convenient to adjust the angle between the solid end 1 and the hollow end 2 according to actual needs. It avoids blocking the doctor's sight during the pulling process of the retractor body, and is convenient for pulling the scalp at different angles according to actual needs, which is convenient for the doctor to operate.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

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.

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