CN215687867U

CN215687867U - Special disposable blood taking needle for blood test

Info

Publication number: CN215687867U
Application number: CN202122030374.6U
Authority: CN
Inventors: 王磊
Original assignee: Qingdao Blood Center
Current assignee: Qingdao Blood Center
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-02-01
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a special disposable blood taking needle for blood examination, wherein an opening is formed in the upper end of a needle cylinder, a needle tube is inserted into the needle cylinder through the opening, two guide holes are symmetrically formed in the side surface of the needle cylinder, a plurality of stop blocks are fixedly connected to the inner side wall of the needle cylinder, a plurality of support blocks are arranged on the support blocks, all the support blocks are fixedly connected with the side wall of a spring sleeve, the lower end surface of each support block is correspondingly contacted with the upper end surface of one stop block, the lower end of a spring is fixedly connected with the inner end surface of the spring sleeve, the upper end of the spring is fixedly connected with the inner top surface of the needle cylinder, two sliding handles are symmetrically arranged on the side surface of the spring sleeve, both the two sliding handles are fixedly connected with the spring sleeve, the two sliding handles are respectively and slidably connected into the two guide holes, and a needle head is fixedly connected to the lower end of the spring sleeve, can effectively relieve the pain of a blood-sampled person during blood sampling.

Description

Special disposable blood taking needle for blood test

Technical Field

The utility model relates to the field of disposable blood taking needles, in particular to a disposable blood taking needle special for blood test.

Background

When a patient is ill or a patient is in a hospital for physical examination, blood may need to be drawn for testing, and a blood taking needle is an instrument for collecting blood samples in the medical examination process, and is disposable, namely, the blood taking needle is used once and then can be discarded, so that the risk of cross infection caused by repeated use is avoided. Many of the items used in hospitals today are disposable, like infusion sets, syringes, surgical needles, endoscopic poking cards, gloves, urine bags, ureters, drainage bags etc. This adds a portion of the cost but greatly reduces the chance of cross-contamination.

The existing disposable blood taking needle mostly takes blood through a pressing type, is easy to shake when being inserted into the skin of a human body, and has the slow needle inserting speed to cause the blood-taking person to generate obvious pain, so that the technical problem is solved, and the special disposable blood taking needle for blood examination with high needle inserting speed and accurate needle inserting is necessarily provided to overcome the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a disposable blood taking needle special for blood test, which has high needle inserting speed.

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

a disposable blood taking needle special for blood examination comprises a needle cylinder, a needle tube and a needle head, wherein an opening is formed in the upper end of the needle cylinder, the needle tube is inserted into the needle cylinder through the opening, two guide holes are symmetrically formed in the side face of the needle cylinder, each guide hole consists of two vertical guide holes and one transverse guide hole, a plurality of check blocks are fixedly connected to the inner side wall of the needle cylinder, a spring sleeve, a spring and a support block are arranged on the inner side of the needle cylinder, the support block is provided with a plurality of support blocks, all the support blocks are fixedly connected with the side wall of the spring sleeve, the lower end face of each support block correspondingly contacts with the upper end face of one check block, the lower end face of each support block and the upper end face of each check block are tooth-shaped, the lower end face of each support block is correspondingly meshed with the upper end face of the check block, the lower end face of the spring sleeve is fixedly connected with the inner end face of the spring sleeve, and the upper end of the spring is fixedly connected with the inner top face of the needle cylinder, the side symmetry of spring sleeve is provided with two slip handles, and two slip handles all with spring sleeve fixed connection and two slip handles difference sliding connection in two guiding holes, syringe needle fixed connection is at spring sleeve's lower extreme and syringe needle and needle tubing intercommunication.

On the basis of the technical scheme, the utility model also provides the following optional technical scheme:

in one alternative: and a sealing rubber ring is arranged at the opening at the upper end of the needle cylinder, and dustproof rubber strips are arranged at the two guide holes.

In one alternative: the lower end part of the needle cylinder is conical, the conical head part of the lower end of the needle cylinder is a cylindrical cylinder, and the cylindrical cylinder is connected with a rubber sleeve in a sealing mode.

In one alternative: the dog has three and three dog equidistant fixed connection on the inside wall of cylinder.

In one alternative: the lower ends of the two sliding handles are provided with grooves. In one alternative:

compared with the prior art, the utility model has the following beneficial effects:

1. according to the disposable blood taking needle special for blood examination, a needle cylinder of the blood taking needle is aligned to a blood taking part, one hand presses the needle cylinder, the other hand pulls the two sliding handles upwards by two fingers respectively, when the sliding handles move upwards to the top end of the guide hole, the two sliding handles are rotated, the spring sleeve synchronously rotates along with the sliding handles, three supporting blocks on the spring sleeve are all separated from contact with corresponding stop blocks, when the two sliding handles slide to the most lateral end of the guide hole respectively, the sliding handles are released, and a needle head quickly penetrates into the skin of a person to be blood-sampled under the action of a spring, so that the pain of the person to be blood-sampled can be effectively relieved;

2. according to the disposable blood taking needle special for blood examination, the opening at the upper end of the needle cylinder is provided with the sealing rubber ring, and the two guide holes are provided with the dustproof rubber strips, so that the sterile environment in the needle cylinder is ensured, and the rubber sleeve can prevent the needle head from being polluted by external bacteria before being used;

drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an external structural view of the present invention.

Fig. 3 is a three-dimensional structure diagram of a partial structure in the present invention.

Fig. 4 is a three-dimensional structure diagram of the supporting block according to the present invention.

Notations for reference numerals: the needle cylinder 1, the needle tube 2, the needle head 3, the guide hole 4, the stop block 5, the spring sleeve 6, the spring 7, the supporting block 8, the sliding handle 9, the groove 10, the sealing rubber ring 11, the dustproof rubber strip 12, the cylindrical cylinder 13 and the rubber sleeve 14.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the utility model. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.

Example 1

Referring to fig. 1 to 4, in the embodiment of the present invention, a disposable blood taking needle special for blood test includes a needle cylinder 1, a needle tube 2, and a needle head 3, the upper end of the needle cylinder 1 is open, the needle tube 2 is inserted into the needle cylinder 1 through the opening, two guide holes 4 are symmetrically disposed on a side surface of the needle cylinder 1, each of the two guide holes 4 is composed of two vertical guide holes and one horizontal guide hole, a plurality of stoppers 5 are fixedly connected to an inner side wall of the needle cylinder 1, a spring sleeve 6, a spring 7, and a support block 8 are disposed on the inner side of the needle cylinder 1, a plurality of support blocks 8 are disposed on the support blocks 8, all the support blocks 8 are fixedly connected to a side wall of the spring sleeve 6, a lower end surface of each support block 8 correspondingly contacts an upper end surface of one stopper 5, a lower end surface of each support block 8 and an upper end surface of the stopper 5 are tooth-shaped, and a lower end surface of each support block 8 is correspondingly engaged with an upper end surface of the stopper 5, the supporting block 8 can be locked, the supporting block 8 is prevented from being separated from the stop block 5 due to oscillation, the lower end of the spring 7 is fixedly connected with the inner end face of the spring sleeve 6, the upper end of the spring 7 is fixedly connected with the inner top face of the needle cylinder 1, two sliding handles 9 are symmetrically arranged on the side face of the spring sleeve 6, the two sliding handles 9 are fixedly connected with the spring sleeve 6, the two sliding handles 9 are respectively and slidably connected into the two guide holes 4, the needle 3 is fixedly connected to the lower end of the spring sleeve 6, and the needle 3 is communicated with the needle tube 1; a sealing rubber ring 11 is arranged at an opening at the upper end of the needle cylinder 1, and dustproof rubber strips 12 are arranged at the positions of the two guide holes 4, so that the sterile environment in the needle cylinder 1 is ensured;

the three stop blocks 5 are fixedly connected to the inner side wall of the needle cylinder 1 at equal intervals;

the lower ends of the two sliding handles 9 are provided with grooves 10, so that the phenomenon of hand slip when the sliding handles 9 are pulled can be prevented.

When medical personnel use this special disposable blood taking needle of blood test, aim at blood sampling position with blood taking needle cylinder 1, cylinder 1 is pressed to one hand, another hand upwards stimulates two slip handles 9 respectively with two fingers, when slip handle 9 upwards moved to guiding hole 4 top, rotate two slip handles 9, so spring sleeve 6 rotates along with slip handle 9 is synchronous with spring sleeve 6 fixed connection for two slip handles 9, three supporting shoe 8 on the spring sleeve 6 all breaks away from the contact with corresponding dog 5, when two slip handles 9 slide respectively to the most lateral end of guiding hole 4, loosen slip handle 9, spring 7 promotes syringe 3 and pops out syringe 1 and pierces the blood sampling position and take a blood sample.

Example 2

The embodiment of the utility model is different from the embodiment 1 in that the lower end part of the needle cylinder 1 is conical, the conical head part of the lower end of the needle cylinder 1 is a cylindrical cylinder 13, and a rubber sleeve 14 is hermetically connected to the cylindrical cylinder 13;

the cylindrical barrel 13 serves as a guide for the needle 3 and the rubber sleeve 14 prevents contamination of the needle before use.

The above description is only for the specific embodiments disclosed in the present specification, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope disclosed in the present specification, and all such changes or substitutions should be covered by the scope of the present disclosure. Therefore, the protection scope disclosed in the specification shall be subject to the protection scope of the claims.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a special disposable blood taking needle of blood test, includes cylinder (1), needle tubing (2), syringe needle (3), its characterized in that, cylinder (1) upper end opening and needle tubing (2) insert inside cylinder (1) through this opening, the side symmetry of cylinder (1) is provided with two guiding holes (4), and two guiding holes (4) comprise by two vertical guiding holes and a horizontal guiding hole, the inside wall fixedly connected with a plurality of dog (5) of cylinder (1), cylinder (1) inboard are provided with spring sleeve (6), spring (7), supporting shoe (8) have a plurality of and all supporting shoe (8) all with the lateral wall fixed connection of spring sleeve (6), the lower terminal surface of every supporting shoe (8) all corresponds the up end of contacting dog (5), the lower terminal surface of every supporting shoe (8) and the up end of dog (5) are the profile of tooth and the lower extreme of every supporting shoe (8) The face all corresponds the meshing with the up end of dog (5), the interior terminal surface of the lower extreme fixed connection spring sleeve (6) of spring (7) and the interior top surface of the upper end fixed connection cylinder (1) of spring (7), the side symmetry of spring sleeve (6) is provided with two slip handles (9), and two slip handles (9) all with spring sleeve (6) fixed connection and two slip handles (9) sliding connection respectively in two guiding holes (4), syringe needle (3) fixed connection is in the lower extreme of spring sleeve (6) and syringe needle (3) and needle tubing (2) intercommunication.

2. The disposable blood taking needle special for blood test according to claim 1, wherein a sealing rubber ring (11) is arranged at the opening of the upper end of the needle cylinder (1), and dustproof rubber strips (12) are arranged at the two guide holes (4).

3. The disposable blood collection needle for blood test according to claim 2, wherein the lower end of the needle cylinder (1) is conical and the conical head part of the lower end of the needle cylinder (1) is a cylindrical cylinder (13), and a rubber sleeve (14) is hermetically connected to the cylindrical cylinder (13).

4. The disposable blood collection needle for blood test according to claim 1, wherein the three stoppers (5) are fixedly connected to the inner sidewall of the cylinder (1) at equal intervals, and the three stoppers (5) are fixed to the inner sidewall of the cylinder (1) at equal intervals.

5. The disposable blood collection needle for blood test according to claim 1, wherein the lower ends of both sliding handles (9) are provided with a groove (10).