CN216169210U

CN216169210U - Remaining needle convenient for blood drawing

Info

Publication number: CN216169210U
Application number: CN202122407287.8U
Authority: CN
Inventors: 娄洁香; 周丽萍
Original assignee: Affiliated Sir Run Run Shaw Hospital of School of Medicine Zhejiang University
Current assignee: Affiliated Sir Run Run Shaw Hospital of School of Medicine Zhejiang University
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses an indwelling needle convenient for blood drawing, which comprises a three-way joint and an output needle body, wherein one end of the three-way joint is provided with a slot, one end of the output needle body is fixedly provided with an insertion tube capable of being inserted into the slot, the inner wall of the slot is provided with an L-shaped groove, the L-shaped groove comprises a vertical groove and a horizontal groove, the vertical groove extends along the axis direction of the slot, the horizontal groove is connected with one end of the vertical groove extending into the slot, a limiting bulge is fixed on the outer wall of the insertion tube, the insertion tube is rotated after the limiting bulge is inserted into the vertical groove, the limiting bulge is inserted into the horizontal groove, and one end of the horizontal groove far away from the vertical groove is provided with a limiting groove. The indwelling needle can realize infusion and blood drawing, is very convenient, and relieves the pain of patients.

Description

Remaining needle convenient for blood drawing

Technical Field

The utility model belongs to the technical field of remaining needles, and particularly relates to a remaining needle convenient for blood drawing.

Background

The use of the indwelling needle can reduce the pain and the fear of injection caused by repeated venipuncture, facilitate clinical medication, rescue medication of critical patients, reduce the workload of nurses, and reduce the clinical wide application of the venous indwelling needle.

At present, an indwelling needle is generally used for infusion in clinic, and the existing indwelling needle comprises an indwelling needle body, a puncture needle, a transparent tee joint and a tee joint, wherein one end of the tee joint is fixedly connected with a joint cap, and the other end of the tee joint is connected with a heparin cap.

If will take a blood sample to the patient and just will use the blood taking needle, the patent of publication No. CN201642029U discloses a blood taking needle, and the blood taking needle includes input needle body and output needle body, and the output of input needle body is connected with the body, is fixed with output joint on the body, is fixed with the intubate on the output needle body, pegs graft through intubate and output joint. However, blood collection and transfusion are performed separately, which can cause more pain to patients.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an indwelling needle convenient for blood drawing, which can realize infusion and blood drawing and is very convenient.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a keep somewhere needle convenient to bloodletting, includes three way connection and output needle body, three way connection's one end is equipped with the slot, and the one end of output needle body is fixed with the intubate that can peg graft with the slot, the inner wall of slot is equipped with L type groove, L type groove includes vertical groove and horizontal groove, and vertical groove extends along the axis direction of slot, and horizontal groove is connected with the one end that vertical groove extended into in the slot, be fixed with spacing arch on the outer wall of intubate, spacing arch rotates the intubate after pegging graft with vertical groove, and spacing arch is pegged graft with horizontal groove.

Further, the sealing ring is arranged between the bottom surface of the slot and the insertion pipe.

Furthermore, one end of the horizontal groove, which is far away from the vertical groove, is provided with a limiting groove.

Furthermore, a butting ring is fixed at one end of the insertion tube, which is far away from the output needle body.

Further, the cross section of the abutting ring is triangular.

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

(1) the indwelling needle can realize infusion and blood drawing, is very convenient and relieves the pain of patients;

(2) the output needle body and the three-way joint are conveniently connected by inserting the limiting protrusion and the limiting groove;

(3) the leakproofness of junction can be increased to the sealing ring, avoids the condition that junction blood appears spilling.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention with the cartridge and the socket separated;

FIG. 3 is a schematic view of the interior of the socket;

fig. 4 is a schematic structural view of the insert cylinder.

In the figure: 1. puncturing needle; 2. a indwelling needle body; 3. a transparent tee joint; 4. a three-way joint; 5. inserting a tube; 6. outputting a needle body; 7. a limiting bulge; 8. a seal ring; 9. a slot; 10. a vertical slot; 11. a horizontal groove; 12. a limiting groove; 13. an abutment ring.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution of an indwelling needle for facilitating blood drawing: the utility model provides a keep somewhere needle convenient to draw blood, is including keeping somewhere needle body 2, pjncture needle 1, transparent tee bend 3 and three way connection 4, and three way connection 4's one end fixedly connected with connects emits, and three way connection 4's the other end is equipped with slot 9, can dismantle on slot 9 and be connected with heparin cap or output needle body 6. The indwelling needle can realize infusion and blood drawing, is very convenient and relieves the pain of patients.

The one end of output needle body 6 is fixed with can be with the intubate 5 of pegging graft of slot 9, the inner wall of slot 9 is equipped with L type groove, L type groove includes vertical groove 10 and horizontal groove 11, vertical groove 10 extends along the axis direction of slot 9, horizontal groove 11 extends into the one end in the slot 9 with vertical groove 10 and is connected, be fixed with spacing arch 7 on the outer wall of intubate 5, spacing arch 7 rotates intubate 5 with vertical groove 10 grafting back, spacing arch 7 is pegged graft with horizontal groove 11.

The indwelling needle further comprises a sealing ring 8, the sealing ring 8 is arranged between the bottom surface of the slot 9 and the insertion tube 5, and a limiting groove 12 is arranged at one end, far away from the vertical groove 10, of the horizontal groove 11.

When the output needle body 6 and the slot 9 are required to be connected together, firstly, the limiting bulge 7 on the insertion tube 5 is inserted into the vertical groove 10, when the insertion tube is about to be inserted to the bottom, the acting force of the sealing ring 8 is given, the sealing ring 8 is compressed, then the insertion tube 5 is rotated, the limiting bulge 7 is inserted into the horizontal groove 11, until the limiting bulge 7 is positioned below the limiting groove 12, the sealing ring 8 gives the rebound force of the insertion tube 5 at the moment, the limiting bulge 7 enters the limiting groove 12, and therefore the output needle body 6 and the three-way joint 4 are connected together.

The sealing ring 8 can increase the sealing performance of the joint and avoid the leakage of blood at the joint.

An abutting ring 13 is fixed at one end of the cannula 5 far away from the output needle body 6, and the cross section of the abutting ring 13 is triangular. The abutment ring 13 can be inserted into the sealing ring 8, so that the outer diameter of the sealing ring 8 is enlarged, and the sealing performance of the joint of the insertion tube 5 and the slot 9 is better increased.

The connection part of the heparin cap and the slot 9 has the same structure as the cannula 5, so that the heparin cap can be disassembled and assembled.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a keep somewhere needle convenient to bloodletting, includes three way connection and output needle body, three way connection's one end is equipped with the slot, and the one end of output needle body is fixed with the intubate that can peg graft with the slot, its characterized in that: the inner wall of slot is equipped with L type groove, L type groove includes vertical groove and horizontal groove, and vertical groove extends along the axis direction of slot, and the horizontal groove is connected with the one end that vertical groove extended into in the slot, be fixed with spacing arch on the outer wall of intubate, spacing arch rotates the intubate after pegging graft with vertical groove, and spacing arch is pegged graft with the horizontal groove.

2. An indwelling needle for facilitating blood drawing as claimed in claim 1, wherein: still include the sealing ring, the sealing ring sets up between the bottom surface of slot and intubate.

3. An indwelling needle for facilitating blood drawing as claimed in claim 1, wherein: and one end of the horizontal groove, which is far away from the vertical groove, is provided with a limiting groove.

4. An indwelling needle for facilitating blood drawing as claimed in claim 1, wherein: and one end of the intubation tube, which is far away from the output needle body, is fixed with a butting ring.

5. An indwelling needle for facilitating blood drawing as claimed in claim 4, wherein: the cross section of the abutting ring is triangular.