CN214965649U

CN214965649U - Blood taking needle with retraction structure

Info

Publication number: CN214965649U
Application number: CN202023260225.0U
Authority: CN
Inventors: 彭金文
Original assignee: Huaian Hailun Medical Equipment Co ltd
Current assignee: Huaian Hailun Medical Equipment Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-12-03
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to the technical field of blood taking needles, in particular to a blood taking needle with a retraction structure, which comprises a sleeve, wherein the top surface of the sleeve is provided with a connecting handle, the end part of the connecting handle is sleeved with a transfusion hose, the bottom surface of the sleeve is provided with a flexible connecting piece, the surface of the flexible connecting piece is provided with a point bonding bulge, the point bonding bulge is fixed on the surface of a needle head, the needle head is inserted into the sleeve, the end part of the needle head is sleeved with a damping ring, the outer side of the needle head is sleeved with a punching ring and a lantern ring, the punching ring is fixed on the surface of the lantern ring, and the inner ring surface of the punching ring is provided with a rubber ring; the beneficial effects are that: the utility model provides a blood taking needle with return structure of contracting is at sleeve pipe bottom grafting syringe needle, and the syringe needle glues the flexible even piece of protruding connection through the point, and the syringe needle uses the back, will glue the protruding back of cutting off a little, can push the sleeve pipe with the syringe needle in, and the damping circle extrusion is avoided the syringe needle to drop downwards between sleeve pipe and the syringe needle, so realizes the sleeve pipe to the protection of syringe needle.

Description

Blood taking needle with retraction structure

Technical Field

The utility model relates to a blood taking needle technical field specifically is a blood taking needle with return structure that contracts.

Background

The blood taking needle is an instrument for collecting blood samples in the medical examination process and consists of a needle head and a needle rod, wherein the needle head is arranged at the head part of the needle rod, a sheath is connected on the needle rod in a sliding way, a return spring is arranged between the sheath and the needle rod, and the initial position of the sheath is positioned at the head parts of the needle head and the needle rod;

in the prior art, after the blood taking needle is used, the needle head needs to be broken off, but the broken needle is exposed outside and still has the hidden trouble of mistakenly pricking workers; therefore, the utility model provides a blood taking needle with a retraction structure for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blood taking needle with return structure of contracting to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a blood taking needle with structure of returning, includes the sleeve pipe, sheathed tube top surface is provided with the connection handle, and the tip cover of connection handle is equipped with the infusion hose, and sheathed tube bottom surface is provided with flexible even piece, flexible even surface of piece is provided with glues the arch a bit, the point glues the arch and fixes the surface at the syringe needle, the syringe needle is pegged graft in the sleeve pipe, and the tip cover of syringe needle is equipped with the damping circle, and the outside cover of syringe needle is equipped with die-cut ring and the lantern ring, the surface at the lantern ring is fixed to die-cut ring, and the interior anchor ring of die-cut ring is provided with the rubber circle.

Preferably, the sleeve and the connecting handle are both in a circular tube-shaped structure, the inner diameter of the connecting handle is equal to that of the sleeve, and the outer shape of the connecting handle is smaller than the outer diameter of the sleeve.

Preferably, the flexible connecting sheets are of circular arc-shaped plate structures, the number of the flexible connecting sheets is multiple, and the flexible connecting sheets are distributed in a cross-shaped arrangement.

Preferably, the point bonding bulge is positioned between the needle head and the flexible connecting piece, the damping ring is in a circular ring structure with a circular arc-shaped section, and the damping ring is extruded between the inner wall of the sleeve and the outer wall of the needle head.

Preferably, die-cut ring is round platform shape loop configuration, and the inner ring mouth of die-cut ring is circular cylinder structure, and the lantern ring is ring shape platelike structure, and the inner ring diameter of the lantern ring equals with the inner ring diameter of die-cut ring, and the rubber circle is the section and is convex ring configuration, and the rubber circle is provided with a plurality ofly, and a plurality of rubber circles are along die-cut ring row distribution from top to bottom.

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

1. the utility model provides a blood taking needle with retraction structure is at sleeve pipe bottom grafting syringe needle, and the syringe needle passes through some to glue the arch and connects flexible even piece, and after the syringe needle used, cut off some to glue the arch, can push the syringe needle into the sleeve pipe, and the damping circle extrudes between sleeve pipe and syringe needle, avoids the syringe needle to drop downwards, so realizes the protection of sleeve pipe to the syringe needle;

2. the utility model provides a blood taking needle with return structure of contracting establishes die-cut ring and the lantern ring at syringe needle outside cover, along the syringe needle slip lantern ring, make die-cut ring will a little glue the arch cut off can, easy operation is convenient.

Drawings

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

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a schematic view of the structure of the syringe needle retracted into the casing according to the present invention.

In the figure: the infusion device comprises a sleeve 1, a connecting handle 2, an infusion hose 3, a flexible connecting sheet 4, a point-gluing bulge 5, a needle 6, a damping ring 7, a punching ring 8, a lantern ring 9 and a rubber ring 10.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution: a blood taking needle with a retraction structure comprises a sleeve 1, wherein a connecting handle 2 is arranged on the top surface of the sleeve 1, the sleeve 1 and the connecting handle 2 are both in a circular tube-shaped structure, the inner diameter of the connecting handle 2 is equal to that of the sleeve 1, the outer shape of the connecting handle 2 is smaller than the outer diameter of the sleeve 1, and an infusion hose 3 is sleeved at the end part of the connecting handle 2;

the bottom surface of the sleeve 1 is provided with a plurality of flexible connecting pieces 4, the flexible connecting pieces 4 are of circular arc-shaped plate structures, the flexible connecting pieces 4 are arranged in a cross shape, the surfaces of the flexible connecting pieces 4 are provided with point bonding bulges 5, the point bonding bulges 5 are fixed on the surfaces of needles 6, the needles 6 are inserted in the sleeve 1, the end parts of the needles 6 are sleeved with damping rings 7, the point bonding bulges 5 are positioned between the needles 6 and the flexible connecting pieces 4, the damping rings 7 are of circular ring structures with circular arc-shaped sections, and the damping rings 7 are extruded between the inner wall of the sleeve 1 and the outer wall of the needles 6;

the outer side of the needle 6 is sleeved with a punching ring 8 and a lantern ring 9, the punching ring 8 is fixed on the surface of the lantern ring 9, the inner ring surface of the punching ring 8 is provided with a rubber ring 10, the punching ring 8 is of a circular truncated cone-shaped annular structure, the inner ring opening of the punching ring 8 is of a circular cylindrical structure, the lantern ring 9 is of a circular annular plate-shaped structure, the inner ring diameter of the lantern ring 9 is equal to the inner ring diameter of the punching ring 8, the rubber ring 10 is of a circular ring structure with a circular arc-shaped section, the rubber rings 10 are provided with a plurality of rubber rings 10 which are distributed along the punching ring 8 in an up-down arrangement manner, the lantern ring 9 drives the punching ring 8 to slide along the needle 6, the reinforcing point sticking bulge 5 of the punching ring 8 is cut off, and then the needle point of the needle 6 is pushed to knock the desktop, the needle 6 can be pushed into the sleeve 1, the damping ring 7 is squeezed between the sleeve 1 and the needle 6, the needle 6 is prevented from falling off, and the punching ring 8 and the lantern ring 9 protect the needle tip of the needle 6.

The working principle is as follows: during the in-service use, as shown with reference to figure 1, syringe needle 6 exposes and satisfies normal use, when syringe needle 6 needs to be destroyed after using, the top pushes away lantern ring 9 and drives die-cut ring 8 and slide along syringe needle 6, die-cut ring 8 adds the point and glues protruding 5 and cut off, then strike the desktop with the needle point of syringe needle 6, can push syringe needle 6 into sleeve pipe 1, damping circle 7 extrusion is between sleeve pipe 1 and syringe needle 6, avoid syringe needle 6 to drop, and die-cut ring 8 and lantern ring 9 are to the needle point protection of syringe needle 6, the state is shown with reference to figure 2 this moment, avoid syringe needle 6 to use the back mistake and prick medical personnel.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A blood lancet with a retraction structure, comprising a cannula (1), characterized in that: the top surface of sleeve pipe (1) is provided with connection handle (2), and the tip cover of connection handle (2) is equipped with infusion hose (3), and the bottom surface of sleeve pipe (1) is provided with flexible even piece (4), the surface of flexible even piece (4) is provided with glues arch (5) a bit, the point glues protruding (5) and fixes the surface at syringe needle (6), syringe needle (6) are pegged graft in sleeve pipe (1), and the tip cover of syringe needle (6) is equipped with damping ring (7), and the outside cover of syringe needle (6) is equipped with die-cut ring (8) and lantern ring (9), the surface at the lantern ring (9) is fixed in die-cut ring (8), and the interior anchor ring of die-cut ring (8) is provided with rubber circle (10).

2. The lancet with retraction structure of claim 1, wherein: the sleeve (1) and the connecting handle (2) are both in a circular tube structure, the inner diameter of the connecting handle (2) is equal to that of the sleeve (1), and the outer shape of the connecting handle (2) is smaller than the outer diameter of the sleeve (1).

3. The lancet with retraction structure of claim 1, wherein: the flexible connecting sheets (4) are of arc-shaped plate structures, a plurality of flexible connecting sheets (4) are arranged, and the flexible connecting sheets (4) are distributed in a cross-shaped arrangement.

4. The lancet with retraction structure of claim 1, wherein: the point bonding bulge (5) is positioned between the needle head (6) and the flexible connecting piece (4), the damping ring (7) is of a circular ring structure with a circular arc-shaped section, and the damping ring (7) is extruded between the inner wall of the sleeve (1) and the outer wall of the needle head (6).

5. The lancet with retraction structure of claim 1, wherein: die-cut ring (8) are round platform shape loop configuration, and the inner ring mouth of die-cut ring (8) is circular cylinder structure, and lantern ring (9) are ring shape platelike structure, and the inner ring diameter of lantern ring (9) equals with the inner ring diameter of die-cut ring (8), and rubber circle (10) are the section and are convex loop configuration, and rubber circle (10) are provided with a plurality ofly, and a plurality of rubber circles (10) are along die-cut ring (8) and arrange the distribution from top to bottom.