CN213822969U

CN213822969U - Safe extraction device for syringe needle

Info

Publication number: CN213822969U
Application number: CN202020499005.4U
Authority: CN
Inventors: 陈倩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-07-30
Anticipated expiration: 2030-04-07

Abstract

The utility model relates to a safe drawing device of a syringe needle, which comprises a shell, wherein the shell is provided with an opening; the clamping groove is positioned in the shell and made of elastic materials, the notch of the clamping groove faces the opening, and a through hole is formed in the bottom of the clamping groove; a telescopic machanism, telescopic machanism includes knock-out pole and driver, the driver install in on the shell, the knock-out pole certainly the driver to open-ended direction extends, the driver drive the knock-out pole passes the perforation is stretched into or is stretched out the centre gripping groove. The needle head is installed by using the clamping groove instead of fingers, so that the fingers and the needle head keep a certain distance, and the fingers are prevented from being pricked by the needle head due to misoperation.

Description

Safe extraction device for syringe needle

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a safe draw-out device of syringe needle.

Background

For some people who need to take insulin for a long time, a needle cylinder for injecting insulin is prepared, wherein a needle and the needle cylinder are kept separately for safety and convenient keeping, the needle is fixed in a needle cap, the needle cap is arranged on the needle cylinder when the needle needs to be used, the needle is left on the needle cylinder through rotation, the needle cap is separated, the needle cap is arranged on the needle after the needle is taken out, the needle is pulled away, although the needle cap prevents hands from being pricked by the needle when the needle is arranged, when the needle is removed, the needle cap is pressed on the needle again, the volume of the needle cap is small, and if the needle cap is not stably held, fingers are easily pricked by the needle.

Disclosure of Invention

An object of the utility model is to provide a safe draw-out device of syringe needle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a safe extraction device for a syringe needle comprises a shell, wherein the shell is provided with an opening; the clamping groove is positioned in the shell and made of elastic materials, the notch of the clamping groove faces the opening, and a through hole is formed in the bottom of the clamping groove; a telescopic machanism, telescopic machanism includes knock-out pole and driver, the driver install in on the shell, the knock-out pole certainly the driver to open-ended direction extends, the driver drive the knock-out pole passes the perforation is stretched into or is stretched out the centre gripping groove.

Further, the shell internal surface is equipped with the internal thread, the driver includes knob and promotion portion, the knob is located outside the shell, the knob drives the promotion portion is rotatory, the surface of promotion portion is equipped with the external screw thread, the external screw thread with the internal thread cooperatees, the promotion portion drives the ejector pin rotation.

Furthermore, a pushing plate is arranged on one side of the knob and is semi-annular, the pushing portion comprises a main body and an outer ring, the outer ring is fixed to the side face of the main body, the external threads are located on the surface of the outer ring, the diameter of the outer ring is the same as that of the pushing plate, the main body is clamped between the outer ring and the pushing plate, the pushing plate pushes the outer ring to rotate, and the main body is fixed to the ejection rod.

Furthermore, the outer surface of the knob is provided with friction lines.

Further, a plurality of dents are arranged on the inner wall of the clamping groove and distributed at intervals along the inner wall of the clamping groove.

Further, the clamping groove is made of rubber or silica gel.

The utility model has the advantages that: the needle head is installed by using the clamping groove instead of fingers, so that the fingers and the needle head keep a certain distance, and the fingers are prevented from being pricked by the needle head due to misoperation.

Drawings

The figures further illustrate the invention, but the embodiments in the figures do not constitute any limitation of the invention.

Fig. 1 is a schematic structural diagram according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of the telescoping mechanism;

fig. 4 is an assembly diagram according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 4, an embodiment of the present invention provides a safe drawing device for a syringe needle, which includes a housing 1, a holding groove 2 and a telescopic mechanism 3. The shell 1 is cylindrical, the shell 1 is provided with an opening 11, and the other end of the shell 1 opposite to the opening 11 is provided with an inlet. The utility model discloses a syringe needle cover cap, including shell 1, centre gripping groove 2, opening 11, centre gripping groove 2 is located in the shell 1, just centre gripping groove 2 passes through glue to be fixed in the shell 1, centre gripping groove 2 is made by elastic material, the notch orientation in centre gripping groove 2 opening 11, the notch in centre gripping groove 2 with opening 11 is the same, the shape design in centre gripping groove 2 is unanimous with the shape of syringe needle cover cap 4, just the inner chamber size in centre gripping groove 2 slightly is less than the size of syringe needle cover cap 4, the tank bottom in centre gripping groove 2 is equipped with perforation 22. The telescopic mechanism 3 comprises an ejection rod 31 and a driver 32, the driver 32 is installed on the housing 1, the ejection rod 31 extends from the driver 32 to the direction of the opening 11, and the driver 32 drives the ejection rod 31 to pass through the through hole 22 and extend into or out of the clamping groove 2.

As shown in fig. 1-4, in an actual use process, the opening 11 is aligned with the needle cap 4 and inserted, the needle cap 4 is embedded into the clamping groove 2, and the needle cap 4 is in interference fit with the clamping groove 2, a user takes up the housing 1 and inserts the needle cylinder to be mounted, and then slightly rotates and pulls the housing away, so that the needle can be fixed on the needle cylinder, and the needle cap 4 is left in the clamping groove 2; after using the syringe, the user only needs to take the housing 1, insert the opening 11 opposite to the needle, slightly rotate the needle cap 4 to fix the needle, pull the needle away from the syringe, and eject the needle cap 4 by using the driver 32, so that the needle can be left on the needle cap 4 and the needle cap 4 can be separated from the clamping groove 2. Through using centre gripping groove 2 replaces the finger installation syringe needle, makes the finger keep certain distance with the syringe needle, avoids being pricked by the syringe needle because of the finger of misoperation.

As shown in fig. 2 to 4, the inner surface of the housing 1 is provided with an internal thread 12, the driver 32 includes a knob 33 and a pushing portion 34, the knob 33 is located outside the housing 1, the knob 33 drives the pushing portion 34 to rotate, the outer surface of the pushing portion 34 is provided with an external thread 35, the external thread 35 is matched with the internal thread 12, and the pushing portion 34 drives the ejector rod 31 to rotate. When the knob 33 is used for rotating, the knob 33 drives the pushing part 34 to rotate, the pushing part 34 can advance or retreat in the shell 1 due to the external thread 35, and the pushing rod also advances or retreats along with the pushing part 34. In one embodiment, the knob 33, the pushing portion 34 and the ejector rod 31 are fixed together, and when the knob 33 is rotated by a user, the knob 33 advances or retreats together with the ejector rod.

As shown in fig. 2-4, in another embodiment, a pushing plate 36 is disposed on one side of the knob 33, the pushing plate 36 is integrated with the knob 33, the knob 33 is disposed on one side of the inlet, the knob 33 can only rotate at the inlet without advancing or retreating, the pushing plate 36 is disposed in the housing 1, the pushing plate 36 is in a half-ring shape, the pushing portion 34 includes a main body 37 and an outer ring 38, the outer ring 38 is fixed on a side surface of the main body 37, the external thread 35 is disposed on a surface of the outer ring 38, a diameter of the outer ring 38 is the same as a diameter of the pushing plate 36, the outer ring 38 and the pushing plate 36 together form a cylindrical structure, the main body 37 is sandwiched between the outer ring 38 and the pushing plate 36, the main body 37 is fixed to the ejector rod 31, the pushing plate 36 pushes the outer ring 38 to rotate, when the knob 33 is rotated, the knob 33 rotates, the push plate 36 pushes the outer ring 38 to rotate without contacting the internal thread 12, the body 37 rotates with the push plate 36, the outer ring 38 advances or retreats due to the internal thread 12, and the ejector rod 31 advances or retreats with the outer ring 38.

As shown in fig. 2-4, the outer surface of the knob 33 is provided with friction lines 39 to facilitate the user to grasp the knob 33 for rotation. The inner wall in centre gripping groove 2 is equipped with many indents 21, indents 21 is followed the inner wall interval distribution in centre gripping groove 2, centre gripping groove 2 is made by rubber or silica gel, improves centre gripping groove 2 with friction between the syringe needle block 4 makes centre gripping groove 2 can more firmly grasp syringe needle block 4.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A syringe needle safety extraction device, comprising:

a housing, said housing having an opening;

the clamping groove is positioned in the shell and made of elastic materials, the notch of the clamping groove faces the opening, and a through hole is formed in the bottom of the clamping groove;

a telescopic machanism, telescopic machanism includes knock-out pole and driver, the driver install in on the shell, the knock-out pole certainly the driver to open-ended direction extends, the driver drive the knock-out pole passes the perforation is stretched into or is stretched out the centre gripping groove.

2. The syringe needle safety extraction device of claim 1, wherein: the utility model discloses a push rod, including shell, driver, knob, promotion portion, the shell internal surface is equipped with the internal thread, the driver includes knob and promotion portion, the knob is located outside the shell, the knob drives promotion portion is rotatory, the surface of promotion portion is equipped with the external screw thread, the external screw thread with the internal thread cooperatees, it is rotatory that promotion portion drives the knock-out rod.

3. The syringe needle safety extraction device of claim 2, wherein: the push part comprises a main body and an outer ring, the outer ring is fixed on the side face of the main body, the outer thread is located on the surface of the outer ring, the diameter of the outer ring is the same as that of the push plate, the main body is clamped between the outer ring and the push plate, the push plate pushes the outer ring to rotate, and the main body is fixed with the ejection rod.

4. The syringe needle safety extraction device of claim 2, wherein: the outer surface of the knob is provided with friction grains.

5. The syringe needle safety extraction device of claim 1, wherein: the inner wall of the clamping groove is provided with a plurality of dents which are distributed at intervals along the inner wall of the clamping groove.

6. The syringe needle safety extraction device of claim 5, wherein: the clamping groove is made of rubber or silica gel.