CN210963387U

CN210963387U - Needle cap and syringe capable of preventing back sleeve puncture

Info

Publication number: CN210963387U
Application number: CN201921572440.9U
Authority: CN
Inventors: 吴妍
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-10
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a prevent back cover stabbing needle cap and prevent back cover stabbing syringe belongs to the medical instrument field, should prevent back cover stabbing needle cap including set up at the front end and be used for accomodating the syringe needle of syringe needle and take in the pipe and set up the cylinder sleeve pipe at the rear end and be used for entangling the syringe cylinder, the syringe needle is accomodate the pipe and is cylindrical, the cylinder sleeve pipe is first half open-ended semi-cylindrical, the sheathed tube internal diameter of cylinder is the same with the external diameter of syringe cylinder, the sheathed tube internal diameter of cylinder is greater than the syringe needle is accomodate the internal diameter of pipe, the syringe needle is accomodate pipe and cylinder sleeve pipe and is passed through the toper transition surface and connect, the sheathed tube bottom of cylinder is provided with first locating plane. The utility model can greatly improve the success rate of the back-cover needle cap, greatly reduce the incidence rate of needle-prick injuries and reduce the infection rate of hospitals.

Description

Needle cap and syringe capable of preventing back sleeve puncture

Technical Field

The utility model relates to the field of medical appliances, in particular to a needle cap and an injector for preventing back sleeve puncture.

Background

At present, the injector mainly comprises a piston, a syringe, a separated needle head and a needle cap matched with the needle head, and the needle cap plays a role in sleeving protection. One end of the needle cap is provided with an opening for inserting the needle head, the needle cap is taken down when in use, and the two hands are taken up and sleeved back relatively after the use. However, in the injection process, except for holding the syringe by the right hand, the doctor or the nurse needs to press the patient with a cotton swab to stop bleeding after the needle is pulled out, so that the doctor or the nurse has difficulty in freeing the two hands to sleeve the needle cap back on the syringe barrel in the process, and the doctor or the nurse often needs to sleeve the needle cap back by one hand. With the development and the specification of medical behaviors, in order to prevent infection caused by needle stick injury when the used needle is sleeved back, the used needle is not sleeved back by both hands, and is required to be sleeved back by one hand. However, the opening area of the existing needle cap is small, so that when medical staff hold the needle cylinder to back the needle cap, the needle cap is not easy to be operated by a single hand, and then the accident of needle stick injury is caused, and unnecessary loss is brought.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a prevent back cover stabbing needle cap and prevent back cover stabbing syringe, the utility model discloses can increase substantially back cover needle cap success rate to greatly reduced acupuncture's incidence that hurts reduces the infection rate of hospital.

The utility model provides a technical scheme as follows:

the utility model provides a prevent back cover stabbing needle cap, is including setting up at the front end and being used for accomodating the syringe needle of syringe needle and setting up the cylinder sleeve pipe at the rear end and being used for entangling the syringe cylinder, the syringe needle is accomodate the pipe and is cylindrical, the cylinder sleeve pipe is first half open-ended semicircle pillar-shaped, the sheathed tube internal diameter of cylinder is the same with the external diameter of syringe cylinder, the sheathed tube internal diameter of cylinder is greater than the internal diameter that the pipe was accomodate to the needle, the syringe needle is accomodate the pipe and is passed through the toper transition face with the cylinder sleeve pipe and connect, the sheathed tube bottom of cylinder is provided with first locating.

Furthermore, a first clamping groove for clamping the syringe of the injector is formed in the inner wall of the syringe sleeve.

Furthermore, a second clamping groove for clamping a syringe pintle is arranged at the joint of the conical transition surface and the needle head accommodating tube.

Furthermore, a second positioning plane is arranged at the bottom of the needle head accommodating tube, and the height of the second positioning plane is the same as that of the first positioning plane.

Further, two side surfaces of the outer surface of the syringe jacket are perpendicular to the first positioning plane.

Further, two side surfaces of the outer surface of the needle receiving tube are perpendicular to the second positioning plane.

Furthermore, a first inclined opening is formed in the upper portion of the conical transition surface, a second inclined opening is formed in the upper portion of the rear end of the syringe sleeve, the first inclined opening and the second inclined opening are inclined towards the front upper portion, and the first inclined opening and the second inclined opening form an inclined plane inclined towards the front upper portion.

Furthermore, the length of the syringe sleeve is more than or equal to 1 cm.

Further, the inclination of the conical transition surface is 130 °.

The syringe comprises a piston, a needle cylinder, a needle head, a pintle and the needle cap for preventing back sleeve puncture, wherein the needle head is contained in the needle head containing pipe, and the needle cylinder is sleeved in the needle cylinder sleeve.

The utility model discloses following beneficial effect has:

the utility model discloses because the sheathed tube diameter of cylinder is greater than the diameter that the syringe needle accomodates the pipe, consequently makes the open area increase of needle cap 1-2 times to first half open-ended open semi-cylindrical makes the increase of direct view field of vision area, and the operation field of vision is wide, reduces the field of vision blind area of original syringe needle cap open end greatly, has increased operating space, thereby the medical staff of being convenient for light, quick, accurately overlaps the needle cap again. Meanwhile, the bottom end of the outer part of the needle cylinder sleeve forms a horizontal positioning surface, so that the needle cap cannot roll after being placed on the operating table, and the bottom surface of the needle cylinder sleeve can effectively limit the needle cap to roll when the needle cap is sleeved back. The utility model can greatly improve the success rate of the back-cover needle cap, greatly reduce the incidence rate of needle-prick injuries and reduce the infection rate of hospitals.

Drawings

FIG. 1 is a front view of one embodiment of a back-cover puncture preventing needle cap of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a front view of another embodiment of the anti-back sleeve puncture needle cap of the present invention;

FIG. 5 is a front view of yet another embodiment of the anti-back sleeve puncture needle cap of the present invention;

FIGS. 6-8 are schematic views of the process of the middle back needle cap of the present invention;

FIG. 9 is a front view of the anti-back sleeve stab syringe of the present invention;

fig. 10 is a top view of fig. 9.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

On the one hand, the utility model provides a prevent back cover stabbing needle cap 100, as shown in fig. 1-10, including setting up at the front end and being used for accomodating syringe needle 400 the syringe needle accomodate pipe 1 and set up at the rear end and be used for entangling syringe cylinder 300's cylinder sleeve pipe 2, syringe needle accomodates pipe 1 and is cylindrical, cylinder sleeve pipe 2 is the semi-cylindrical of first half opening (opening part reference numeral is 13), cylinder sleeve pipe 2's internal diameter is the same with syringe cylinder 300's external diameter, cylinder sleeve pipe 2's internal diameter is greater than the internal diameter that syringe needle accomodates pipe 1, syringe needle accomodates pipe 1 and cylinder sleeve pipe 2 and passes through toper transition face 3 and connect, cylinder sleeve pipe 2's bottom is provided with first locating plane 4.

The orientation of the utility model is defined as follows: as shown in FIG. 1, the right end (i.e., needle end) is the front end, the left end (i.e., syringe end) is the rear end, and the up-down direction is the direction shown in FIG. 1.

The utility model discloses take off the needle cap during use and place the operation panel on, the laminating of first locating plane is on the operation panel. The utility model discloses set the rear end (cylinder sleeve) of needle cap into first half open-ended semi-cylindrical, when the single hand back cover needle cap, with syringe needle from the top down through the first half opening of cylinder sleeve get into in the cylinder sleeve (as shown in fig. 6), then inject the dart (as shown in fig. 7) forward for the syringe needle gets into the syringe needle from the cylinder sleeve through the toper transition face and accomodates by the syringe needle storage tube in, the syringe needle gets into the syringe sleeve and entangles by the cylinder sleeve simultaneously, accomplish the operation of back cover needle cap, as shown in fig. 8.

The utility model discloses in, because the sheathed tube diameter of cylinder is greater than the diameter that the syringe needle accomodates the pipe, consequently make the open area increase of needle cap 1-2 times to first half open-ended open semi-cylindrical makes the increase of direct view field of vision area, and the operation field of vision is wide, reduces the field of vision blind area of original syringe needle cap open end greatly, has increased operating space, thereby the medical staff of being convenient for easily, fast, accurately overlaps the needle cap again. Meanwhile, the bottom end of the outer part of the needle cylinder sleeve forms a horizontal positioning surface, so that the needle cap cannot roll after being placed on the operating table, and the bottom surface of the needle cylinder sleeve can effectively limit the needle cap to roll when the needle cap is sleeved back. The utility model can greatly improve the success rate of the back-cover needle cap, greatly reduce the incidence rate of needle-prick injuries and reduce the infection rate of hospitals.

The inner wall of the syringe sleeve 2 of the utility model is provided with a first clamping groove 5 for clamping the syringe 300, as shown in figure 2. The upper half part of the syringe sleeve is in an open semi-cylindrical shape with an opening, and after the needle cap is sleeved back, the syringe sleeve is wrapped on the syringe in a semi-wrapping manner. The first clamping groove is used for clamping the syringe, so that the problems of loose connection and possible separation of the syringe sleeve and the syringe caused by half-wrapping are prevented.

The junction of the conical transition surface 3 and the needle receiving tube 1 is provided with a second catch 6 for catching a syringe pintle 500, as shown in fig. 2. After the medical staff quickly and accurately sleeve the needle cap, the second clamping groove clamps the pintle, so that the needle head of the sharp tool can be conveniently taken down for processing the sharp tool.

The utility model discloses can also be provided with second locating plane 7 in the bottom of syringe needle storage tube 1, second locating plane 7 highly the same with first locating plane 4's height, as shown in fig. 4, second locating plane and the cooperation of first locating plane further guarantee the steady placing of needle cap on the operation panel, prevent the roll of needle cap on the operation panel.

Preferably, both lateral surfaces 8 of the outer surface of the barrel casing 2 are perpendicular to the first positioning plane 4. The two sides 9 of the outer surface of the needle receiving tube 1 are perpendicular to the second orientation plane 7 as shown in figures 3 and 4. The vertical bottom surface and the two side surfaces can effectively limit the needle cap to roll.

As an improvement of the present invention, as shown in fig. 5, a first inclined opening 10 is provided on the upper portion of the tapered transition surface 3, a second inclined opening 11 is provided on the upper portion of the rear end of the cylinder casing 1, the first inclined opening 10 and the second inclined opening 11 are inclined toward the front upper side, and the first inclined opening 10 and the second inclined opening 11 constitute an inclined plane 12 inclined toward the front upper side.

The utility model discloses with toper transition face upper portion and cylinder sleeve pipe rear end upper portion slope opening, cut off partly, form the slope plane of top slope forward for toper transition face and cylinder sleeve pipe rear end upper portion expose partly. The conical transition surface and the rear end of the syringe sleeve are similar to the syringe sleeve and form an open type partial cylinder with an opening at the upper half part, so that when the needle cap is sleeved back, the operation visual field is wider, and the operation space is larger. And because a part is cut off at the rear end of the syringe sleeve, the rear end face of the syringe sleeve is not completely vertical to the axis of the syringe sleeve, and the cut-off part is inclined to the axis of the syringe sleeve, so that the opening area of the rear end face of the syringe sleeve is increased, and the needle head can enter the needle head accommodating tube from the syringe sleeve through a conical transition surface more conveniently.

As the specific size of the utility model is set, the length of the syringe sleeve 2 is more than or equal to 1cm, and enough length is provided for clamping the syringe. The inclination of the conical transition surface 3 is preferably 130 °. The needle cap material for preventing back sleeve stabbing of the utility model can be transparent plastic.

In one aspect, the present invention provides an anti-back-cover puncture syringe, as shown in fig. 9 and 10, comprising a piston 200, a syringe 300, a needle 400, a pintle 500 and the aforementioned anti-back-cover puncture needle cap 100, wherein the needle 400 is accommodated in the needle accommodating tube 1, and the syringe 300 is sleeved in the syringe sleeve 2.

When being provided with first draw-in groove on the inner wall of cylinder sleeve pipe, first draw-in groove blocks the cylinder, when the junction of toper transition face and syringe needle receiving tube was provided with the second draw-in groove, the second draw-in groove blocked the pintle.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a prevent back cover stabbing needle cap which characterized in that, is including setting up at the front end and being used for accomodating the syringe needle of syringe needle and setting up the cylinder sleeve pipe at the rear end and being used for entangling the syringe cylinder, the syringe needle is accomodate the pipe and is cylindrically, the cylinder sleeve pipe is first half open-ended semicylindrical, the internal diameter of cylinder sleeve pipe is the same with the external diameter of syringe cylinder, the internal diameter of cylinder sleeve pipe is greater than the internal diameter that the pipe was accomodate to the syringe needle, syringe needle accomodate pipe and cylinder sleeve pipe pass through the toper transition face and connect, the sheathed tube bottom of cylinder is provided with first locating plane.

2. The needle cap of claim 1, wherein the inner wall of the syringe sleeve is provided with a first clamping groove for clamping the syringe of the injector.

3. The needle cap of claim 2, wherein the tapered transition surface is provided with a second groove at the junction with the needle receiving tube for retaining a syringe needle.

4. The anti-back-sleeve puncture needle cap according to claim 1, wherein a second positioning plane is provided at the bottom of the needle receiving tube, and the height of the second positioning plane is the same as the height of the first positioning plane.

5. The anti-back-cover-puncture needle cap according to claim 4, wherein two side surfaces of the outer surface of the barrel casing are perpendicular to the first positioning plane.

6. The anti-back-sleeve puncture needle cap according to claim 4, wherein two sides of the outer surface of the needle receiving tube are perpendicular to the second positioning plane.

7. The needle cap of any one of claims 1 to 6, wherein the tapered transition surface has a first inclined opening at an upper portion thereof, and a second inclined opening at an upper portion thereof at the rear end of the barrel casing, the first inclined opening and the second inclined opening being inclined forward and upward, the first inclined opening and the second inclined opening forming an inclined plane inclined forward and upward.

8. The needle cap of claim 7, wherein the length of the syringe sleeve is greater than or equal to 1 cm.

9. The anti-back-sleeve puncture needle cap according to claim 8, wherein the inclination of the tapered transition surface is 130 °.

10. An anti-back-cover-pricking syringe, comprising a piston, a syringe, a needle, a pintle and the anti-back-cover-pricking needle cap of any one of claims 1 to 9, wherein the needle is received in the needle receiving tube, and the syringe is sleeved in the syringe sleeve.