CN215900575U

CN215900575U - Interventional artery drug administration indwelling needle

Info

Publication number: CN215900575U
Application number: CN202121561020.8U
Authority: CN
Inventors: 纪宏飞; 贺延苓
Original assignee: 6th Medical Center of PLA General Hospital
Current assignee: 6th Medical Center of PLA General Hospital
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-02-25
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses an indwelling needle for interventional arterial medicine, which comprises an extension tube and a connecting tube installed at the free end of the extension tube. The isolation tube is far from one end of the extension tube. A fixing ring is installed on the outside of the isolation tube, a needle handle is installed on the outside of the fixing ring, a tapered tube is installed at the free end of the isolation tube, and a mounting block is installed inside the isolation tube. A puncture needle is slidably connected inside, a cannula is sleeved on the outside of the puncture needle, and a positioning ring is installed on the outside of the cannula. The cannula, the puncture needle and the valve can be used together to withdraw the puncture needle after successful puncture, reducing the pain of the patient, and under the action of the membrane, preventing blockage or thrombus caused by a large amount of blood splashing, making it more convenient to take medicines It can further reduce the pain of the patient and improve the use of the indwelling needle.

Description

Interventional artery drug administration indwelling needle

Technical Field

The utility model relates to the technical field of drug delivery indwelling needles, in particular to an interventional artery drug delivery indwelling needle.

Background

The use of the indwelling needle can reduce the pain of the patient caused by repeated venipuncture and the fear of injection, reduce the anxiety of parents, facilitate clinical medication, help the critical patients to take medicine for rescue, reduce the workload of nurses and reduce the pain of the patients, so the venous indwelling needle is widely applied clinically. In the prior art, blood splash and large blood flow are easily caused after the needle core is withdrawn, and blood has the function of rapid coagulation, so that equipment blockage and blood thrombosis are easily caused, normal administration cannot be performed, and the pain of a patient is increased, so that an interventional artery administration indwelling needle is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that in the prior art, blood is easy to splash, equipment is blocked, medicine is inconvenient to convey, and pain of a patient is increased, and provides an interventional artery administration indwelling needle.

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

an interventional artery drug administration indwelling needle comprises an extension tube and a connecting tube arranged at the free end of the extension tube, and is characterized in that a puncture mechanism is arranged at one end of the connecting tube, which is far away from the extension tube;

the utility model discloses a puncture needle, including installing the spacer tube that keeps away from extension pipe one end at the connecting pipe, the externally mounted of spacer tube has solid fixed ring, gu fixed ring's externally mounted has a needle handle, the conical duct is installed to the free end of spacer tube, the internally mounted of spacer tube has the installation piece, the inside sliding connection of installation piece has the pjncture needle, the sleeve pipe has been cup jointed to the outside of pjncture needle, sheathed tube externally mounted has the holding ring, the valve is installed to one side that the installation piece is close to the pjncture needle.

Preferably, the extension pipe is kept away from the one end of connecting pipe and is installed the tube sealer, the tube sealer is kept away from the one end of extension pipe and can be dismantled the heparin cap that is connected with.

Preferably, the externally mounted of tube sealing has the malleation to connect, the malleation is connected with the end cap can be dismantled to the one end that the tube sealing was kept away from to the malleation joint.

Preferably, a single-hand clamp is arranged outside the extension pipe, a hole is formed in the single-hand clamp, and the size of the hole in the single-hand clamp is larger than the diameter of the extension pipe.

Preferably, a hole is formed in one side, close to the connecting pipe, of the isolation pipe, and the hole in the outer portion of the isolation pipe is matched with the connecting pipe.

Preferably, the puncture needle and the cannula are positioned on the same straight line, the positioning ring is positioned inside the conical tube, the conical tube is connected with the puncture needle in a sliding manner, and the fixing block is arranged inside the isolation tube.

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

1. the utility model can realize withdrawing the puncture needle after successful puncture by matching the sleeve, the puncture needle and the valve, reduces the pain of patients, prevents blockage or thrombus caused by a large amount of blood splash under the action of the film, is more convenient for medicine delivery, further reduces the pain of patients and improves the application of the indwelling needle.

2. The single-hand clamp can be matched with the extension tube for use, so that the condition that the extension tube conveys the medicine can be observed clearly, the extension tube is clamped by the single-hand clamp in a positioning mode, the phenomenon of unstable clamping of the single-hand clamp is not easy to occur, and the operation is more convenient.

Drawings

FIG. 1 is a schematic structural view of an interventional artery drug delivery indwelling needle according to the present invention;

FIG. 2 is a schematic view of the internal structure of the insulating tube according to the present invention;

FIG. 3 is a schematic perspective view of a single-handed clamp according to the present invention;

fig. 4 is an enlarged view of a portion a in fig. 1.

In the figure: 1. an extension tube; 2. sealing the tube; 3. a heparin cap; 4. a positive pressure joint; 5. an end cap; 6. clamping with a single hand; 7. a connecting pipe; 8. an isolation pipe; 9. a fixing ring; 10. a needle holding handle; 11. A tapered tube; 12. mounting blocks; 13. puncturing needle; 14. a sleeve; 15. a positioning ring; 16. a valve; 17. and (5) fixing blocks.

Detailed Description

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

Referring to fig. 1-4, an interventional artery administration indwelling needle comprises an extension tube 1 and a connecting tube 7 arranged at the free end of the extension tube 1, and is characterized in that a puncture mechanism is arranged at one end of the connecting tube 7 far away from the extension tube 1;

the puncture mechanism comprises an isolation tube 8 which is arranged at one end of a connecting tube 7 far away from an extension tube 1, a fixing ring 9 is arranged outside the isolation tube 8, a needle holding handle 10 is arranged outside the fixing ring 9, a conical tube 11 is arranged at the free end of the isolation tube 8, an installation block 12 is arranged inside the isolation tube 8, a puncture needle 13 is connected inside the installation block 12 in a sliding mode, a sleeve 14 is sleeved outside the puncture needle 13, a positioning ring 15 is arranged outside the sleeve 14, and a valve 16 is arranged on one side, close to the puncture needle 13, of the installation block 12;

the end, far away from the connecting pipe 7, of the extension pipe 1 is provided with a sealing pipe 2, the end, far away from the extension pipe 1, of the sealing pipe 2 is detachably connected with a heparin cap 3, the outside of the sealing pipe 2 is provided with a positive pressure joint 4, the end, far away from the sealing pipe 2, of the positive pressure joint 4 is detachably connected with an end cap 5, the outside of the extension pipe 1 is provided with a single-hand clamp 6, the outside of the single-hand clamp 6 is provided with a hole, the size of the hole in the outside of the single-hand clamp 6 is larger than the diameter of the extension pipe 1, when administration is required after successful puncture, the blood backflow can be prevented by extruding the single-hand clamp 6, the heparin cap 3 is opened, the medicine is conveyed through the sealing pipe 2, meanwhile, the extrusion of the single-hand clamp 6 is stopped, and the medicine enters the body of a patient through the extension pipe 1, the connecting pipe 7, the isolation pipe 8, the puncture needle 13 and the sleeve 14, so that the administration work of the patient is completed;

one side that the isolation tube 8 is close to connecting pipe 7 is seted up porosely, and the outside hole of isolation tube 8 and connecting pipe 7 looks adaptation, pjncture needle 13 is located same straight line with sleeve pipe 14, holding ring 15 is located the inside of conical duct 11, conical duct 11 and pjncture needle 13 sliding connection, the internally mounted of isolation tube 8 has fixed block 17, when puncturing patient, through handheld needle handle 10 of holding, control pjncture needle 13 punctures patient's artery, after the puncture is successful, under the pressure of arterial blood flow, promote pjncture needle 13 and withdraw, only leave sleeve pipe 14 at patient internal for the drug delivery, patient's misery has significantly reduced.

In the utility model, when in operation, the hand-held needle handle 10 punctures the artery of a patient through the puncture needle 13, and the sleeve 14 and the puncture needle 13 are punctured into the blood vessel together. After the cannula 14 has been fully inserted into the blood vessel, the needle 13 is slidably engaged with the mounting block 12 and the cannula 14 under the pressure of the blood stream. At the moment, the puncture needle 13 withdraws back, and only the soft catheter is detained in the blood vessel so as to carry out infusion treatment, so that the firmer puncture needle 13 is prevented from puncturing the blood vessel of the patient when the patient moves, and the pain of the patient is greatly reduced; under the action of the valve 16, the device can effectively prevent the blood from splashing during backflow to cause the blockage of the device or the occurrence of thrombus in the isolation tube 8, which is not beneficial to the delivery of the medicine;

when needs carry the medicine, press from both sides 6 through the extrusion one hand and prevent that blood from flowing back through extension pipe 1, open heparin cap 3, carry out the propelling movement through the envelope 2 with the medicine, the medicine then gets into in the isolation tube 8 through extension pipe 1, connecting pipe 7, gets into in the blood vessel through pjncture needle 13 and sleeve pipe 14 at last to carry out medication to patient.

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. An interventional artery administration indwelling needle comprises an extension tube (1) and a connecting tube (7) arranged at the free end of the extension tube (1), and is characterized in that a puncture mechanism is arranged at one end, far away from the extension tube (1), of the connecting tube (7);

puncture mechanism is including installing isolation tube (8) of keeping away from extension pipe (1) one end at connecting pipe (7), the externally mounted of isolation tube (8) has solid fixed ring (9), the externally mounted of solid fixed ring (9) has needle handle (10), conical tube (11) are installed to the free end of isolation tube (8), the internally mounted of isolation tube (8) has installation piece (12), the inside sliding connection of installation piece (12) has pjncture needle (13), sleeve pipe (14) have been cup jointed to the outside of pjncture needle (13), the externally mounted of sleeve pipe (14) has holding ring (15), valve (16) are installed to one side that installation piece (12) are close to pjncture needle (13).

2. The interventional artery drug administration indwelling needle according to claim 1, wherein a sealing tube (2) is installed at one end of the extension tube (1) far away from the connecting tube (7), and a heparin cap (3) is detachably connected to one end of the sealing tube (2) far away from the extension tube (1).

3. The indwelling needle for drug delivery to the interventional artery according to claim 2, wherein a positive pressure joint (4) is installed outside the sealing tube (2), and an end cap (5) is detachably connected to one end of the positive pressure joint (4) far away from the sealing tube (2).

4. An interventional artery drug delivery indwelling needle according to claim 1, wherein the extension tube (1) is externally provided with a one-hand clip (6), the one-hand clip (6) is externally provided with a hole, and the hole on the outside of the one-hand clip (6) is larger in size than the diameter of the extension tube (1).

5. An interventional artery drug delivery indwelling needle according to claim 1, wherein the side of the isolation tube (8) near the connecting tube (7) is provided with a hole, and the hole on the outside of the isolation tube (8) is matched with the connecting tube (7).

6. An interventional artery drug delivery indwelling needle according to claim 1, wherein the puncture needle (13) is aligned with the cannula (14), the positioning ring (15) is located inside the tapered tube (11), the tapered tube (11) is connected with the puncture needle (13) in a sliding manner, and the fixing block (17) is installed inside the isolation tube (8).