CN216703070U

CN216703070U - Hemodialysis trocar convenient to puncture

Info

Publication number: CN216703070U
Application number: CN202121815281.8U
Authority: CN
Inventors: 陈文�; 赵君; 胡玉倩
Original assignee: 6th Medical Center of PLA General Hospital
Current assignee: 6th Medical Center of PLA General Hospital
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-06-10
Anticipated expiration: 2031-08-05

Abstract

The utility model discloses a hemodialysis trocar convenient for puncture, which relates to the technical field of hemodialysis and comprises a trocar body and a sleeve fixedly arranged at the insertion end of the trocar body, wherein a puncture needle is movably arranged in the trocar body, a fixing mechanism is arranged on the puncture needle, the fixing mechanism comprises a plug head in threaded connection with one end of the trocar body, which is far away from the sleeve, one end of the puncture needle, which is far away from the sleeve, is fixedly connected with the plug head, one end of the plug head, which is far away from the puncture needle, is fixedly provided with a sleeve with an opening at one side, the side wall of the sleeve is provided with a hole groove, and a fixing component is arranged in the sleeve. According to the utility model, the puncture needle inserted into the blood vessel of the patient is fixed through the fixing mechanism, the puncture needle is prevented from moving or falling off in the blood vessel, and then the insertion nozzle is inserted into the blood vessel, so that the problem that medical staff need to fix the puncture needle by hand in the prior art is solved, the operation of the medical staff is facilitated, and the puncture work is further facilitated.

Description

Hemodialysis trocar convenient to puncture

Technical Field

The utility model relates to the technical field of hemodialysis, in particular to a hemodialysis trocar convenient for puncture.

Background

Hemodialysis is to introduce the blood of a patient into a dialyzer through a connecting pipe by means of venipuncture, direct connection of a catheter and the like, to discharge redundant toxins and moisture in the blood of the patient out of the body through functions of dispersion, filtration, convection and the like of a hemodialysis filtration membrane, and to re-transfuse the residual completely filtered blood into the body of the patient.

In the prior art, during hemodialysis, a puncture needle is inserted into a blood vessel of a patient, in order to prevent the puncture needle from moving in the blood vessel or the puncture needle from falling off, a medical worker needs to fix the puncture needle with one hand, then insert a trocar into the blood vessel with the other hand, and only use one hand to control the trocar, so that the operation is very inconvenient, the trocar is easily inserted to a deviated position, and hemodialysis of the patient is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defect that in the prior art, medical staff fixes a puncture needle by one hand and inserts a trocar into a blood vessel by the other hand, which is inconvenient in operation mode, and provides a hemodialysis trocar convenient for puncture.

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

the utility model provides a hemodialysis trocar convenient to puncture, includes trocar body and the fixed sleeve pipe that sets up and insert the end at the trocar body, this internal activity of trocar is provided with the pjncture needle, be provided with fixed establishment on the pjncture needle, fixed establishment includes that threaded connection keeps away from the chock plug of sleeve pipe one end at the trocar body, sheathed tube one end and chock plug fixed connection are kept away from to the pjncture needle, the fixed open sleeve in one side area that is provided with of the one end that the pjncture needle was kept away from to the chock plug, the hole groove has been seted up to telescopic lateral wall, be provided with fixed subassembly in the sleeve.

The above technical solution further comprises:

the fixed subassembly is including fixed block A who sets up in the sleeve, fixed one side that the trocar body was kept away from to fixed block A is fixed and is provided with the spring, the fixed block B that is provided with of one end that fixed block A was kept away from to the spring, the fixed elastic component that is provided with of lateral wall of fixed block B, the fixed inserted block that is provided with and the hole groove is corresponding that keeps away from fixed one end of fixed block B to the elastic component.

One side of the insertion block, which is far away from the elastic piece, is an inclined tangent plane.

The inserting end of the sleeve is fixedly provided with a plug nozzle, and the plug nozzle is in a cone shape.

And a clamping ring A is fixedly arranged on the part of the trocar body close to the fixing component.

The trocar body is fixedly communicated with a connecting pipe, and a clamping ring B is fixedly arranged on the connecting pipe.

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

1. according to the utility model, the puncture needle inserted into the blood vessel of the patient is fixed through the fixing mechanism, the puncture needle is prevented from moving or falling off in the blood vessel, and then the insertion nozzle is inserted into the blood vessel, so that the problem that medical staff need to fix the puncture needle by hand in the prior art is solved, the operation of the medical staff is facilitated, and the puncture work is further facilitated.

2. According to the utility model, the inclined tangent plane is arranged on the insertion block, so that the operation step of extruding the insertion block by medical personnel is omitted, the operation of the medical personnel is further facilitated, and the efficiency of the puncture work is improved.

Drawings

FIG. 1 is a front view of a hemodialysis trocar for facilitating puncture according to the present invention;

FIG. 2 is a side view of a hemodialysis trocar for facilitating puncture according to the present invention;

FIG. 3 is a schematic view of a partial structure of a hemodialysis trocar for facilitating puncture according to the present invention;

fig. 4 is a schematic structural diagram of an insert block according to the present invention.

In the figure: 1. a trocar body; 2. a sleeve; 3. puncturing needle; 4. a sleeve; 5. a plug head; 6. a spring; 7. a fixed block B; 8. inserting a block; 9. an elastic member; 10. a connecting pipe; 11. a clamping ring A; 12. a clamping ring B; 13. a hole groove; 14. inserting a nozzle; 15. and a fixed block A.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1-3, the hemodialysis trocar convenient for puncture provided by the utility model comprises a trocar body 1 and a cannula 2 fixedly arranged at an insertion end of the trocar body 1, wherein a puncture needle 3 is movably arranged in the trocar body 1, a fixing mechanism is arranged on the puncture needle 3, the fixing mechanism comprises a plug 5 in threaded connection with one end of the trocar body 1 far away from the cannula 2, one end of the puncture needle 3 far away from the cannula 2 is fixedly connected with the plug 5, one end of the plug 5 far away from the puncture needle 3 is fixedly provided with a sleeve 4 with an opening at one side, the side wall of the sleeve 4 is provided with a hole groove 13, and a fixing component is arranged in the sleeve 4;

the fixing component comprises a fixing block A15 fixedly arranged in the sleeve 4, a spring 6 is fixedly arranged on one side of the fixing block A15 far away from the trocar body 1, a fixing block B7 is fixedly arranged on one end, far away from the fixing block A15, of the spring 6, an elastic piece 9 is fixedly arranged on the side wall of the fixing block B7, and an inserting block 8 corresponding to the hole groove 13 is fixedly arranged on one end, far away from the fixing block B7, of the elastic piece 9;

in this embodiment, the puncture needle 3 is fixed by the fixing mechanism, which facilitates the work of medical staff, and when puncturing, the insertion nozzle 14 is opposite to the blood vessel on the skin of the patient, then the sleeve 4 is rotated to rotate the chock plug 5 into the trocar body 1, the chock plug 5 drives the puncture needle 3 to move along the trocar body 1 and to be inserted into the blood vessel, then the fixed block B7 is pressed towards the direction of the sleeve 4, the fixed block B7 compresses the spring 6, the fixed block B7 drives the plug block 8 to move towards the inside of the sleeve 4, then the inserting block 8 is extruded, the inserting block 8 extrudes the elastic piece 9 and moves into the sleeve 4, the fixing block B7 is continuously pressed towards the direction of the sleeve 4, the fixing block B7 drives the inserting block 8 to be inserted into the hole groove 13, and the inserting block 8 and the hole groove 13 are mutually clamped, the puncture needle 3 is fixed, and the insertion nozzle 14 is inserted into the blood vessel, thereby completing the puncture operation before dialysis.

Example 2

As shown in fig. 4, based on embodiment 1, the side of the insert block 8 away from the elastic element 9 is an inclined tangent plane;

in this embodiment, the setting of tangent plane more makes things convenient for the fixed to puncture needle 3, further make things convenient for medical personnel's operation, after puncture needle 3 inserted the blood vessel, press fixed block B7 to the direction of sleeve 4, fixed block B7 compression spring 6, fixed block B7 drives inserted block 8 to the internal motion of sleeve 4, when inserted block 8 and sleeve 4 contacted, under the effect of elastic component 9 and tangent plane, inserted block 8 moved to the direction of elastic component 9 automatically, inserted block 8 moved to in the sleeve 4, when meetting hole groove 13, under the effect of elastic component 9, inserted block 8 popped out from hole groove 13, and with hole groove 13 chucking each other, and then accomplish the fixed to puncture needle 3.

Example 3

As shown in fig. 1-2, based on the

above embodiment

1 or 2, the insertion end of the casing 2 is fixedly provided with the spigot 14, and the spigot 14 is in a cone shape;

a clamping ring A11 is fixedly arranged on the part of the trocar body 1 close to the fixing component;

a connecting pipe 10 is fixedly communicated with the trocar body 1, and a clamping ring B12 is fixedly arranged on the connecting pipe 10;

in this embodiment, the conical insertion nozzle 14 has a diameter smaller than the diameter of the other end, so that the insertion nozzle 14 can be conveniently inserted into the blood vessel and can be connected with the cannula 2, the clamping ring a11 is arranged to prevent blood from flowing out from the end of the trocar body 1 far away from the cannula 2, the connecting pipe 10 is arranged to conveniently connect the trocar body 1 with the dialyzer, and the connecting pipe 10 can be opened and closed by the clamping ring B12.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a hemodialysis trocar convenient to puncture, includes trocar body (1) and fixed sleeve pipe (2) that set up and insert the end at trocar body (1), trocar body (1) internalization is provided with pjncture needle (3), a serial communication port, be provided with fixed establishment on pjncture needle (3), fixed establishment includes that threaded connection keeps away from chock plug (5) of sleeve pipe (2) one end in trocar body (1), the one end and chock plug (5) fixed connection of sleeve pipe (2) are kept away from in pjncture needle (3), the one end that pjncture needle (3) were kept away from in chock plug (5) is fixed and is provided with one side and takes open sleeve (4), hole groove (13) have been seted up to the lateral wall of sleeve (4), be provided with fixed subassembly in sleeve (4).

2. The hemodialysis trocar convenient for puncture according to claim 1, wherein the fixing component comprises a fixing block A (15) fixedly arranged in the sleeve (4), a spring (6) is fixedly arranged on one side of the fixing block A (15) far away from the trocar body (1), a fixing block B (7) is fixedly arranged at one end of the spring (6) far away from the fixing block A (15), an elastic member (9) is fixedly arranged on the side wall of the fixing block B (7), and an inserting block (8) corresponding to the hole groove (13) is fixedly arranged at one end of the elastic member (9) far away from the fixing block B (7).

3. A hemodialysis trocar for facilitating puncture according to claim 2, wherein a side of the insert block (8) far away from the elastic member (9) is an inclined tangent plane.

4. A hemodialysis trocar for facilitating puncture according to claim 1, wherein a spigot (14) is fixedly arranged at the insertion end of the cannula (2), and the spigot (14) is cone-shaped.

5. A hemodialysis trocar for facilitating puncture according to claim 1, wherein a clamp ring a (11) is fixedly arranged on the trocar body (1) near the fixing component.

6. The hemodialysis trocar for facilitating puncture according to claim 1, wherein a connecting pipe (10) is fixedly communicated with the trocar body (1), and a clamping ring B (12) is fixedly arranged on the connecting pipe (10).