CN215129685U

CN215129685U - Puncture trocar for western medicine department

Info

Publication number: CN215129685U
Application number: CN202023089347.8U
Authority: CN
Inventors: 徐祥凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-12-14
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a puncture trocar for western medicine department, in particular to the technical field of medical instruments, which comprises a connecting seat and a sleeve arranged at one side of the connecting seat, wherein a sliding mechanism and a moving mechanism arranged inside the sliding mechanism are arranged inside the connecting seat; the sliding mechanism comprises a sliding chute, push blocks are symmetrically arranged in the sliding chute in a sliding mode, a compression spring is fixedly arranged between the sliding chute and the push blocks, a limiting block is arranged at the bottom of the sliding chute in a sliding mode, and an extension spring is fixedly arranged between the sliding chute and the limiting block; the moving mechanism comprises a moving block. The utility model discloses a be equipped with slide mechanism and moving mechanism, by tensile extension spring can produce the pulling force to the movable block through the stopper to eliminate the resilience force that compression spring produced, make the movable block can stably drive the pjncture needle and accomplish the operation of moving back the needle, medical personnel can accomplish the process of puncture and moving back the needle by one hand.

Description

Puncture trocar for western medicine department

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, the utility model relates to a puncture trocar for western medicine department.

Background

With the development of medical technology and medical instrument technology, a plurality of original operations for opening the chest and the abdomen can be performed by minimally invasive endoscopic surgery at present, and an instrument called a cannula puncture needle is used in the minimally invasive endoscopic surgery.

The existing puncture trocar can extract the puncture needle by adopting a two-hand or one-hand operation technology, but when the puncture trocar is operated by one hand, the hand of an operator needs to move from an initial puncture position to another position to extract the puncture needle, the needle cannot be retracted under the condition that the hand does not move, and the needle retraction efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a puncture trocar for western medicine department, the utility model aims to solve the technical problem that: how to provide a trocar for one-handed operation.

In order to achieve the above object, the utility model provides a following technical scheme: a puncture trocar for western medicine department comprises a connecting seat and a sleeve arranged on one side of the connecting seat, wherein a sliding mechanism and a moving mechanism arranged in the sliding mechanism are arranged in the connecting seat;

the sliding mechanism comprises a sliding chute, push blocks are symmetrically arranged in the sliding chute in a sliding mode, a compression spring is fixedly arranged between the sliding chute and the push blocks, a limiting block is arranged at the bottom of the sliding chute in a sliding mode, and an extension spring is fixedly arranged between the sliding chute and the limiting block;

the moving mechanism comprises a moving block, a puncture needle is fixedly arranged on one side of the moving block, push grooves clamped with the push block are symmetrically arranged on the outer side of the moving block, a limiting groove clamped with the limiting block is arranged at the bottom of the moving block, and a trigger mechanism is arranged above the sliding groove;

the trigger mechanism comprises a trigger plate fixedly connected with the connecting seat, a trigger rod is arranged at the top of the trigger plate in a sliding mode, a trigger cylinder connected with the trigger rod in a sliding mode is arranged inside the trigger block, air pipes are symmetrically communicated with the outer side of the trigger cylinder, an air bag is arranged at the other end of each air pipe, a clamping block is arranged at the position, close to the air bag, of the connecting seat in a sliding mode, and a clamping groove connected with the clamping block in a clamping mode is formed in the surface of the moving block.

In a preferred embodiment, the inner wall of the sliding groove is further provided with a guide block protruding outwards, and the moving block is provided with a guide groove connected with the guide block in a sliding manner.

In a preferred embodiment, a return spring is fixedly arranged at the bottom of the trigger rod, and the interior of the trigger cylinder is hollow.

In a preferred embodiment, anti-slip layers are arranged on two sides of the moving block, anti-slip lines are formed in the surfaces of the anti-slip layers, and the anti-slip layers are made of silica gel materials.

In a preferred embodiment, the cannula has a larger diameter than the puncture needle, and the puncture needle is insertable into the cannula.

In a preferred embodiment, the connecting seat is internally provided with a slot for accommodating the push block and the limiting block to slide.

In a preferred embodiment, the trigger cylinder is filled with compressed gas.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be equipped with slide mechanism and moving mechanism, when going on withdrawing the needle, medical personnel can press the trigger lever, the gasbag in the trachea can discover deformation and outwards expand, expanded gasbag can promote fixture block and draw-in groove separation, stretched extension spring can produce the pulling force to the movable block through the stopper, thereby eliminate the resilience force that compression spring produced, make the movable block can stably drive the pjncture needle and accomplish the operation of withdrawing the needle, medical personnel can accomplish the process of puncture and withdrawing the needle with one hand, other hand can be used for operating devices such as ultrasonic probe and fix a position the blood vessel, effectively promoted the puncture accuracy, reduced the operation degree of difficulty, excellent in use effect;

2. the utility model discloses a be equipped with guide block and guide way, the cooperation of guide block and guide way is used, self stationarity when guaranteeing to slide, and then avoids taking place the vibrations problem, and anti-skidding line can increase and point frictional force, avoids taking place the problem of skidding, improves the security of operation, can inject the slip direction of ejector pad and stopper through the fluting, and then guarantees the smoothness nature of moving back the needle.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a perspective view of the overall structure of the present invention.

Fig. 4 is the schematic structural diagram of the trigger cylinder and the trigger rod of the present invention.

The reference signs are: 1. a connecting seat; 2. a sleeve; 3. a chute; 4. a compression spring; 5. a limiting block; 6. an extension spring; 7. a moving block; 8. puncturing needle; 9. pushing the groove; 10. a trigger plate; 11. a trigger lever; 12. a trigger block; 13. a trigger cylinder; 14. an air tube; 15. an air bag; 16. a clamping block; 17. a card slot; 18. a guide block; 19. a guide groove; 20. a return spring; 21. an anti-slip layer; 22. anti-skid lines; 23. grooving; 55. and (7) pushing the block.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a puncture trocar for western medicine department, which comprises a connecting seat 1 and a sleeve 2 arranged at one side of the connecting seat 1, wherein a sliding mechanism and a moving mechanism arranged inside the sliding mechanism are arranged inside the connecting seat 1;

the sliding mechanism comprises a sliding chute 3, push blocks 55 are symmetrically arranged in the sliding chute 3 in a sliding mode, a compression spring 4 is fixedly arranged between the sliding chute 3 and the push blocks 55, a limiting block 5 is arranged at the bottom of the sliding chute 3 in a sliding mode, an extension spring 6 is fixedly arranged between the sliding chute 3 and the limiting block 5, and the extension spring 6 which is extended can generate pulling force on a moving block 7 through the limiting block 5, so that the resilience force generated by the compression spring 4 is eliminated, and the moving block 7 can stably drive a puncture needle 8 to complete needle withdrawing operation;

the moving mechanism comprises a moving block 7, a puncture needle 8 is fixedly arranged on one side of the moving block 7, push grooves 9 which are clamped with a push block 55 are symmetrically arranged on the outer side of the moving block 7, a limiting groove which is clamped with a limiting block 5 is arranged at the bottom of the moving block 7, and a trigger mechanism is arranged above the sliding groove 3;

the triggering mechanism comprises a triggering plate 10 fixedly connected with the connecting seat 1, a triggering rod 11 is arranged at the top of the triggering plate 10 in a sliding mode, a triggering cylinder 13 in sliding connection with the triggering rod 11 is arranged inside the triggering block 12, air pipes 14 are symmetrically communicated with the outer side of the triggering cylinder 13, an air bag 15 is arranged at the other end of the air pipe 14, a clamping block 16 is arranged at a position, close to the air bag 15, of the connecting seat 1 in a sliding mode, a clamping groove 17 clamped with the clamping block 16 is arranged on the surface of the moving block 7, and the clamping groove 17 can be clamped with the clamping block 16 to fix the moving block 7.

The diameter of the sleeve 2 is larger than that of the puncture needle 8, the puncture needle 8 can be inserted into the sleeve 2, the triggering cylinder 13 is filled with compressed gas, and the compressed gas can expand the air bag 15 so as to push the clamping block 16 to be separated from the clamping groove 17.

As shown in fig. 1 to 4, the embodiment specifically is: when the puncture needle withdrawing device is used, the moving block 7 can be pushed into the sliding groove 3, the moving block 7 can synchronously push the push block 55 and the limiting block 5 to move through the push groove 9 and the limiting groove, when the push block 55 and the limiting block 5 move, the spring deforms and is compressed or stretched, when the moving block 7 slides to a preset position, the clamping groove 17 in the moving block 7 can be clamped with the clamping block 16 to fix the moving block 7, the puncture needle 8 can penetrate through the sleeve 2 at the moment, medical personnel can perform puncture operation, when the needle withdrawing needs to be performed, the medical personnel can press the trigger rod 11, the trigger rod 11 can move downwards and extrude compressed gas into the air inlet pipe 14, the air bag 15 in the air pipe 14 can find deformation and expand outwards, the expanded air bag 15 can push the clamping block 16 to be separated from the clamping groove 17, at the moment, the compressed compression spring 4 can release the elastic force, the moving block 7 is pushed through the push block 55, the stretched extension spring 6 can generate tensile force on the moving block 7 through the limiting block 5, thereby eliminate the resilience force that compression spring 4 produced, make movable block 7 can stably drive pjncture needle 8 and accomplish the operation of moving back the needle, wherein compression spring 4's elasticity is 0.3kg, and extension spring 6's elasticity is 0.1kg, makes medical personnel can accomplish the process of puncture and moving back the needle by one hand, and other hands can be used to operate devices such as supersound probe and fix a position the blood vessel, has effectively promoted the puncture accuracy, has reduced the operation degree of difficulty, excellent in use effect.

The inner wall of the sliding groove 3 is further provided with a guide block 18 protruding outwards, the moving block 7 is provided with a guide groove 19 connected with the guide block 18 in a sliding mode, a reset spring 20 is fixedly arranged at the bottom of the trigger rod 11, the trigger cylinder 13 is arranged in a hollow mode, anti-skid layers 21 are arranged on two sides of the moving block 7, anti-skid grains 22 are formed in the surfaces of the anti-skid layers 21, and the anti-skid layers 21 are made of silica gel materials. Connecting seat 1 is inside to be equipped with and to hold the gliding fluting 23 of ejector pad 55 and stopper 5, and the gliding direction of ejector pad 55 and stopper 5 can be injectd to fluting 23, smoothness when avoiding guaranteeing ejector pad 55 and stopper 5 motion.

As shown in fig. 1 to 4, the embodiment specifically is: during the use, the cooperation of guide block 18 and guide way 19 is used, can play the guide effect to the slip of movable block 7, the stationarity of self when guaranteeing to slide, and then avoid taking place the vibrations problem, can improve medical personnel's comfort level in use through skid resistant course 21, anti-skidding line 22 in its outside can increase and point the frictional force, avoid taking place the problem of skidding, improve the security of operation, can inject ejector pad 55 and stopper 5's slip direction through fluting 23, smoothness nature when avoiding guaranteeing ejector pad 55 and stopper 5 motion, and then guarantee the smoothness nature of moving back the needle.

The utility model discloses the theory of operation:

referring to the attached drawings 1-4 of the specification, when the moving block 7 slides to a preset position, the clamping groove 17 on the moving block 7 is clamped with the clamping block 16 to fix the moving block 7, at the moment, the puncture needle 8 penetrates through the sleeve 2, medical staff can perform puncture operation, when the needle is to be withdrawn, the medical staff can press the trigger rod 11, the trigger rod 11 can move downwards and extrude compressed gas into the air inlet pipe 14, the air bag 15 in the air pipe 14 can find deformation and expand outwards, the expanded air bag 15 can push the clamping block 16 to be separated from the clamping groove 17, at the moment, the compressed compression spring 4 can release the elastic force, the moving block 7 is pushed by the push block 55, the stretched tension spring 6 can generate tensile force on the moving block 7 through the limiting block 5, so that the rebound force generated by the compression spring 4 is eliminated, and the moving block 7 can stably drive the puncture needle 8 to complete the needle withdrawal operation;

referring to the attached drawings 1-4 in the specification, the guide block 18 and the guide groove 19 are used in cooperation, so that the sliding of the moving block 7 can be guided, the use comfort of medical personnel can be improved through the anti-skid layer 21, the friction force between the anti-skid threads 22 on the outer side of the anti-skid layer and fingers can be increased, and the sliding direction of the push block 55 and the limiting block 5 can be limited through the groove 23.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a western medicine internal medicine puncture trocar, includes connecting seat (1) to and install sleeve pipe (2) in connecting seat (1) one side, its characterized in that: a sliding mechanism and a moving mechanism arranged in the sliding mechanism are arranged in the connecting seat (1);

the sliding mechanism comprises a sliding chute (3), push blocks (55) are symmetrically arranged in the sliding chute (3) in a sliding mode, a compression spring (4) is fixedly arranged between the sliding chute (3) and the push blocks (55), a limiting block (5) is arranged at the bottom of the sliding chute (3) in a sliding mode, and an extension spring (6) is fixedly arranged between the sliding chute (3) and the limiting block (5);

the moving mechanism comprises a moving block (7), a puncture needle (8) is fixedly arranged on one side of the moving block (7), push grooves (9) which are clamped with push blocks (55) are symmetrically arranged on the outer side of the moving block (7), limiting grooves which are clamped with limiting blocks (5) are arranged at the bottom of the moving block (7), and a trigger mechanism is arranged above the sliding groove (3);

the trigger mechanism comprises a trigger plate (10) fixedly connected with a connecting seat (1), a trigger block (12) is arranged at the top of the trigger plate (10) in a sliding mode, a trigger cylinder (13) slidably connected with a trigger rod (11) is arranged inside the trigger block (12), air pipes (14) are symmetrically communicated with the outer side of the trigger cylinder (13), an air bag (15) is arranged at the other end of each air pipe (14), a clamping block (16) is arranged at a position, close to the air bag (15), of the connecting seat (1) in a sliding mode, and a clamping groove (17) clamped with the clamping block (16) is formed in the surface of a moving block (7).

2. A western medical puncturing trocar according to claim 1, wherein: the inner wall of the sliding groove (3) is further provided with a guide block (18) protruding outwards, and the moving block (7) is provided with a guide groove (19) connected with the guide block (18) in a sliding mode.

3. A western medical puncturing trocar according to claim 1, wherein: the bottom of the trigger rod (11) is fixedly provided with a return spring (20), and the interior of the trigger cylinder (13) is hollow.

4. A western medical puncturing trocar according to claim 1, wherein: anti-skidding layers (21) are arranged on two sides of the moving block (7), anti-skidding lines (22) are formed in the surfaces of the anti-skidding layers (21), and the anti-skidding layers (21) are made of silica gel materials.

5. A western medical puncturing trocar according to claim 1, wherein: the diameter of the sleeve (2) is larger than that of the puncture needle (8), and the puncture needle (8) can be inserted into the sleeve (2) in a penetrating mode.

6. A western medical puncturing trocar according to claim 1, wherein: the connecting seat (1) is internally provided with a slot (23) for accommodating the push block (55) and the limiting block (5) to slide.

7. A western medical puncturing trocar according to claim 1, wherein: the trigger cylinder (13) is filled with compressed gas.