CN217592870U

CN217592870U - Disposable blood taking needle

Info

Publication number: CN217592870U
Application number: CN202220619131.8U
Authority: CN
Inventors: 张翠娟; 邓奇
Original assignee: Fourth Medical Center General Hospital of Chinese PLA
Current assignee: Fourth Medical Center General Hospital of Chinese PLA
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-10-18
Anticipated expiration: 2032-03-21

Abstract

The utility model provides a disposable blood taking needle, which comprises a shell and a slide block which is arranged in the shell and can slide along the length direction of the shell, wherein one end of the slide block is provided with a needle body, the other end of the slide block is provided with a pressing rod, one end of the shell is provided with a through hole for the needle body to pass through, the other end of the shell is provided with an opening for the pressing rod to extend out, the needle body is sleeved with a spring, one end of the spring is contacted with the inner wall of the shell, and the other end of the spring is contacted with the slide block; the utility model provides a disposable blood taking needle simple structure through setting up parts such as casing and slider, can carry on spacingly to the sliding distance of slider, guarantees that the needle body pierces the degree of depth of patient's finger department skin the same, has solved among the prior art and has needed medical personnel to puncture, the different problem of the depth of puncture to patient's finger according to experience.

Description

Disposable blood taking needle

Technical Field

The utility model belongs to the technical field of the medical treatment, concretely relates to disposable blood taking needle.

Background

The blood sugar blood taking needle is used for taking a blood for a patient so as to be convenient for follow-up detection of blood sugar, the blood taking needle sold in the market is not provided with a limiting device generally, medical staff is required to puncture the fingers of the patient according to experience, the puncturing depth is different, discomfort is brought to the patient, chinese patent CN204683616U provides a safety blood taking needle for a blood glucose meter, the safety blood taking needle comprises a blood taking barrel body and a pressing barrel body which are connected vertically, a blood taking sliding block and a blood taking needle are arranged in the blood taking barrel body, the pressing sliding block is arranged in the pressing barrel body, the defect that the depth of the patient is different from the wound left due to the fact that the extending length of the blood taking needle cannot be controlled in the prior art can be reduced, the device is complex in structure and many parts, if the device is abandoned once, and great waste can be caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a disposable blood taking needle, the concrete scheme is as follows:

this disposable blood taking needle includes the casing and sets up in the casing and can follow the gliding slider of casing length direction, and the one end of slider is equipped with the needle body, and the other end is equipped with presses the depression bar, and the one end of casing is equipped with the through-hole that supplies the needle body to pass through, and the other end is equipped with and supplies to press the opening that the depression bar stretches out, and the cover is equipped with the spring on the needle body, and spring one end contacts with shells inner wall, and the other end contacts with the slider.

Furthermore, the outer side wall of the pressing rod is provided with a plurality of easy-to-fold rods, first scales are marked on the outer side wall of the pressing rod along the length direction of the pressing rod, and different easy-to-fold rods correspond to different first scales.

Furthermore, the disposable blood taking needle further comprises a limiting part sleeved on the outer side of the pressing rod, the outer side wall of the limiting part is in threaded connection with the opening, a separation blade is arranged at the top end of the pressing rod, the outer diameter of the separation blade is larger than the inner diameter of the limiting part, and second scales are arranged on the outer side wall of the limiting part along the axial direction of the outer side wall.

Furthermore, a sealing film is arranged at the through hole.

The beneficial effects of the utility model reside in that: the utility model provides a disposable blood taking needle simple structure through setting up parts such as casing and slider, can carry on spacingly to the sliding distance of slider, guarantees that the needle body pierces the degree of depth of patient's finger department skin the same, has solved and has needed medical personnel to puncture, the different problem of the depth of puncture to patient's finger according to experience among the prior art.

Drawings

FIG. 1 is a sectional view of a disposable lancet in an embodiment;

FIG. 2 is a schematic view showing the structure of the pressing rod in the embodiment;

FIG. 3 is a sectional view of the disposable lancet of the embodiment;

FIG. 4 is a sectional view of the disposable lancet of the embodiment.

Reference numbers and designations: 1. the device comprises a shell, 2, a sliding block, 3, a needle body, 4, a pressing rod, 5, a through hole, 6, an opening, 7, a spring, 8, first scales, 9, a limiting part, 10, a blocking piece, 11 and a sealing film.

Detailed Description

The following examples further illustrate the invention but are not to be construed as limiting the invention. Modifications and substitutions of methods, steps or conditions of the present invention are within the scope of the present invention without departing from the spirit and substance of the present invention.

The embodiment provides a disposable blood taking needle, as shown in fig. 1, this disposable blood taking needle includes casing 1 and sets up in casing 1 and can follow the gliding slider 2 of casing 1 length direction, the one end of slider 2 is equipped with needle body 3, the other end is equipped with presses depression bar 4, the one end of casing 1 is equipped with the through-hole 5 that supplies needle body 3 to pass through, the other end is equipped with the opening 6 that supplies to press depression bar 4 to stretch out, the cover is equipped with spring 7 on the needle body 3, spring 7 one end contacts with casing 1 inner wall, the other end contacts with slider 2.

Wherein, the needle body and the pressing rod are fixedly connected with the sliding block, such as bonding and the like, and the elasticity of the spring is enough to eject the sliding block to the direction of the pressing rod to eject the needle body into the shell; when the blood taking needle is used, a medical worker holds the shell, and makes one end with the through hole contact with the skin of a patient, and then the pressing rod can be pushed downwards to enable the needle body to penetrate into the skin of the patient through the through hole; at this moment, the disposable blood taking needle simple structure that this embodiment provided through setting up parts such as casing and slider, can carry on spacingly to the sliding distance of slider, guarantees that the needle body pierces the degree of depth of patient's finger department skin the same, has solved and has needed medical personnel to puncture, the different problem of the depth of puncture to patient's finger according to experience among the prior art.

In some embodiments, as shown in fig. 2, the outer side wall of the pressing rod 4 is provided with a plurality of easy-folding rods 7, the outer side wall of the pressing rod 4 is marked with first scales 8 along the length direction thereof, and different easy-folding rods 7 correspond to different first scales 8.

Wherein, medical personnel's accessible roll over easily the pole with it down, during the use, can select to roll over the easy pole of suitable position down according to patient's skin condition, when promoting to press the pressure pole, can block on the casing top according to the remaining easy pole of rolling over of pressure pole, comes the distance that the control needle body stretches out the through-hole in proper order, and then the control needle body pierces the degree of depth in patient's skin, simple structure, easily operation.

In some embodiments, as shown in fig. 3, the disposable blood collection needle further includes a limiting member 9 sleeved outside the pressing rod 4, an outer side wall of the limiting member 9 is in threaded connection with the opening 6, a blocking piece 10 is disposed at a top end of the pressing rod 4, an outer diameter of the blocking piece 10 is larger than an inner diameter of the limiting member 9, and a second scale is disposed on an outer side wall of the limiting member 9 along an axial direction thereof.

The limiting part is hollow cylindrical and is sleeved outside the pressing rod, the blocking piece is fixedly connected with the pressing rod, and when the needle is used, the limiting part can be rotated through the relative opening to enable the limiting part to move upwards or downwards relative to the pressing rod, the specific position of the limiting part determines the distance of pressing down of the pressing rod, and then the distance of the needle body extending out of the through hole can be controlled.

In some embodiments, as shown in fig. 4, a sealing film 11 is provided at the through hole 5.

This embodiment can avoid the needle body to be contaminated through setting up sealing film.

In summary, the preferred embodiments of the present invention are only examples, and the scope of the present invention is not limited thereto, and all equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification are within the scope covered by the present invention.

Claims

1. The utility model provides a disposable blood taking needle, its characterized in that, disposable blood taking needle include casing (1) and set up in casing (1) is interior and can be followed casing (1) gliding slider (2) of length direction, the one end of slider (2) is equipped with needle body (3), and the other end is equipped with presses depression bar (4), the one end of casing (1) is equipped with the confession through-hole (5) that needle body (3) pass through, the other end is equipped with the confession press opening (6) that depression bar (4) stretch out, the cover is equipped with spring (7) on needle body (3), spring (7) one end with casing (1) inner wall contacts, the other end with slider (2) contacts.

2. The disposable blood taking needle according to claim 1, wherein a plurality of easy-to-fold rods (7) are provided on the outer side wall of the pressing rod (4), a first scale (8) is marked on the outer side wall of the pressing rod (4) along the length direction of the pressing rod, and different easy-to-fold rods (7) correspond to different first scales (8).

3. The disposable blood taking needle according to claim 1, further comprising a limiting member (9) sleeved outside the pressing rod (4), wherein the outer side wall of the limiting member (9) is in threaded connection with the opening (6), a blocking piece (10) is arranged at the top end of the pressing rod (4), the outer diameter of the blocking piece (10) is larger than the inner diameter of the limiting member (9), and a second scale is arranged on the outer side wall of the limiting member (9) along the axial direction of the blocking piece.

4. The disposable lancet according to claim 1, characterized in that a sealing film (11) is provided at the through hole (5).