CN210077671U

CN210077671U - Safe-to-use blood drawing needle

Info

Publication number: CN210077671U
Application number: CN201920703239.3U
Authority: CN
Inventors: 邹蕊
Original assignee: Second Affiliated Hospital Army Medical University
Current assignee: Second Affiliated Hospital Army Medical University
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-02-18
Anticipated expiration: 2029-05-15

Abstract

The utility model discloses a safe in utilization's blood drawing needle, its structure is including drawing the blood needle, a handle, the connecting pipe, the slider, protection device and pjncture needle, be provided with protection device through drawing the blood needle lower extreme, when drawing the blood, the limit is released the pjncture needle and is pricked the puncture hole, then pierce by the person's of drawing the blood vessel, the limit is pricked and is pulled back the PVC protective sheath after that, because the spout in the fixed plate can slide on the slider, conveniently pull back, after drawing the blood, dial out the pjncture needle and leave the blood vessel, push back the fixed plate after that, make the pjncture needle in the PVC protective sheath, the security is high, effectively prevent that the nurse from taking place the condition emergence of needle stick injury after.

Description

Safe-to-use blood drawing needle

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to safe in utilization's needle of drawing blood.

Background

The blood drawing 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 protective sleeve is connected on the needle rod in a sliding way, a reset spring is arranged between the protective sleeve and the needle rod, and the initial position of the protective sleeve is positioned at the head parts of the needle head and the needle rod, but the blood drawing needle often causes needle stick injuries in the blood drawing process so as to cause cross infection to medical personnel.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, a blood drawing needle which is safe to use is provided, and the problem of cross infection to medical workers due to needle stick injuries which often occur in the blood drawing process is solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a safe in utilization's blood drawing needle, including blood drawing needle, handle, connecting pipe, slider, protection device and pjncture needle, the blood drawing needle left end is provided with the handle, blood drawing needle top is pegged graft with the connecting pipe, blood drawing needle left and right sides lower extreme bonds there is the slider, the slider lower extreme is provided with protection device, blood drawing needle bottom is provided with the pjncture needle, protection device includes roof, through-hole, spout, fixed plate, PVC protective sheath and puncture hole, the middle part is provided with the through-hole in the roof, both ends are provided with the spout about in the through-hole, both ends bond there is the fixed plate about the roof bottom, the through-hole bottom bonds there is the PVC protective sheath, the lower extreme is provided with the puncture hole in the PVC protective sheath, spout and slider spare sliding connection.

Furthermore, the inner diameter of the through hole is larger than the outer diameter of the lower end of the blood drawing needle.

Furthermore, the thickness and the width in the sliding groove are both larger than the thickness and the width of the sliding block.

Further, the thickness of the PVC protective sleeve is 0.2mm and is 0.15mm greater than the thickness of the puncture position.

Furthermore, the upper end of the PVC protective sleeve is large, the lower end of the PVC protective sleeve is small, and the length of the PVC protective sleeve is larger than the length of the puncture needle by 1 cm.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) thereby for solving because the problem that often can take place the acupuncture wound to cause cross infection to medical personnel in the process of drawing blood, be provided with protection device through the needle lower extreme of drawing blood, when drawing blood, the limit is released the pjncture needle and is punctured the puncture mouth, then pierce by the person's of drawing blood vessel, the limit is punctured and is pulled back the PVC protective sheath after that, because spout in the fixed plate can slide on the slider, conveniently pull back, after the end of drawing blood, dial out the pjncture needle and leave the blood vessel, push back the fixed plate after that, make the pjncture needle in the PVC protective sheath, the security is high, effectively prevent that the nurse from taking place the condition emergence of acupuncture wound after the blood drawing in-process.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

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

fig. 2 is a schematic structural view of the protection device of the present invention.

In the figure: a blood drawing needle-1, a handle-2, a connecting tube-3, a slide block-4, a protective device-5, a puncture needle-6, a top plate-51, a through hole-52, a chute-53, a fixed plate-54, a PVC protective sleeve-55 and a puncture opening-56.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, the present invention provides a blood drawing needle which is safe: including taking out blood needle 1, handle 2, connecting pipe 3, slider 4, protection device 5 and pjncture needle 6, 1 left end of taking out blood needle is provided with

handle

2, 1 top of taking out blood needle is pegged graft with connecting

pipe

3, 1 left and right sides lower extreme of taking out blood needle bonds and has

slider

4, 4 lower extremes of slider are provided with

protection device

5, 1 bottom of taking out blood needle is provided with pjncture needle 6, protection device 5 includes roof 51, through-hole 52, spout 53, fixed plate 54, PVC protective sheath 55 and puncture port 56, the middle part is provided with through-hole 52 in the roof 51, both ends are provided with spout 53 about in the through-hole 52, both ends bond and have fixed plate 54 about roof 51 bottom, it has PVC protective sheath 55 to bond bottom through-hole 52, the lower extreme is provided with puncture port 56 in PVC protective sheath 55, spout.

Wherein, the inner diameter of the through hole 52 is larger than the outer diameter of the lower end of the blood drawing needle 1, so that the sliding is convenient.

Wherein, thickness and width all are greater than slider 4 thickness and width in the spout 53, and it is smooth to slide, effectual.

The thickness of the PVC protective sleeve 55 is 0.2mm, and is 0.15mm larger than the thickness of the puncture 56, the thickness is moderate, the effect is good, and the puncture is convenient.

The upper end of the PVC protective sleeve 55 is large, the lower end of the PVC protective sleeve 55 is small, the length of the PVC protective sleeve 55 is larger than that of the puncture needle 6 by 1cm, the mechanical energy can be conveniently moved, and the protection performance is strong.

The working principle is as follows: when the blood drawing needle needs to be used, firstly, the blood drawing part is disinfected, then the blood drawing needle is used for drawing blood, the connecting pipe 3 needs to be connected into the back drawing needle cylinder, then a user holds the handle 2 on the blood drawing needle 1 to push in, the lower end of the blood drawing needle is provided with a protective device 5, when drawing blood, the handle 2 is pushed out of the puncture needle 6 under the action of force to puncture the puncture opening 56, then pricks into the blood vessel of the person to be bled, then the PVC protective sleeve 55 is pulled back while the prick is carried out, the sliding groove 53 in the fixed plate can slide on the sliding block 4, the pull-back is convenient, the exposure of the needle head before the blood drawing can be avoided, the danger is reduced, after the blood drawing is finished, the puncture needle 6 is pulled out to leave the blood vessel, then, the fixing plate 51 is pushed back, so that the puncture needle 6 is arranged in the PVC protective sleeve 55, the safety is high, and the condition that a nurse generates a needle stick injury after the blood drawing process is effectively prevented.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

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. A blood drawing needle safe in use is characterized in that: the structure of the novel blood drawing needle comprises a blood drawing needle (1), a handle (2), a connecting pipe (3), a sliding block (4), a protection device (5) and a puncture needle (6), wherein the handle (2) is arranged at the left end of the blood drawing needle (1), the top of the blood drawing needle (1) is spliced with the connecting pipe (3), the sliding block (4) is bonded at the lower ends of the left side and the right side of the blood drawing needle (1), the protection device (5) is arranged at the lower end of the sliding block (4), the puncture needle (6) is arranged at the bottom of the blood drawing needle (1), the protection device (5) comprises a top plate (51), a through hole (52), a sliding groove (53), a fixing plate (54), a PVC protective sleeve (55) and a puncture hole (56), the through hole (52) is arranged in the middle part of the top plate (51), the sliding grooves (53) are arranged at the left end and the right, the bottom of the through hole (52) is bonded with a PVC protective sleeve (55), a puncture (56) is arranged at the inner lower end of the PVC protective sleeve (55), and the sliding groove (53) is connected with the sliding block (4) in a sliding manner.

2. A safety blood drawing needle as recited in claim 1, wherein: the inner diameter of the through hole (52) is larger than the outer diameter of the lower end of the blood drawing needle (1).

3. A safety blood drawing needle as recited in claim 1, wherein: the thickness and the width in the sliding groove (53) are both larger than those of the sliding block (4).

4. A safety blood drawing needle as recited in claim 1, wherein: the thickness of the PVC protective sleeve (55) is 0.2mm and is 0.15mm larger than the thickness of the puncture (56).

5. A safety blood drawing needle as recited in claim 1, wherein: the upper end of the PVC protective sleeve (55) is large, the lower end of the PVC protective sleeve is small, and the length of the PVC protective sleeve (55) is 1cm greater than that of the puncture needle (6).