CN115429979A

CN115429979A - Insulin pen prevents acupuncture needle point

Info

Publication number: CN115429979A
Application number: CN202210953393.2A
Authority: CN
Inventors: 陈晶晶; 黄靓; 严晓玲
Original assignee: Affiliated Hospital of Nantong University
Current assignee: Affiliated Hospital of Nantong University
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-06
Anticipated expiration: 2042-08-10
Also published as: CN115429979B

Abstract

The invention discloses an insulin pen anti-acupuncture needle point, which comprises an outer needle cap, an inner needle cap and a needle head; the needle comprises a needle body and a needle seat, and a plurality of grooves are formed in the periphery of the needle seat; the outer needle cap comprises a cap body and a moving ring; the moving ring is arranged at the rear end of the cap body and is hinged with the cap body; the inner side wall of the moving ring is provided with a plurality of convex blocks matched with the grooves; the moving ring is limited on the needle head seat through a limiting component. The invention is convenient for installing the outer needle cap and prevents the outer needle cap from being stabbed when being installed.

Description

Insulin pen prevents acupuncture needle point

Technical Field

The invention relates to the technical field of medical equipment, in particular to an insulin pen needle-prick prevention needle point.

Background

Insulin injection devices such as insulin pens and injection needles have been widely used as a method for treating diabetes. The main function of the device is to accurately infuse insulin into the body of a diabetic patient through an injection device so as to achieve the purpose of controlling the blood sugar of the patient.

The existing injection needle comprises a needle base, a needle head, an inner needle cap and an outer needle cap, wherein the outer needle cap and the inner needle cap are sequentially removed before use, and the insulin injection needle is directly exposed outside. Because the syringe needle is through using the back, can't used again, need take off the syringe needle after the injection, because current syringe needle does not have protective structure, the easy emergence accident mistake touches the syringe needle and leads to cross infection.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an insulin pen which can prevent a needle point from being punctured, is convenient for installing an outer needle cap and can prevent the outer needle cap from being punctured when being installed.

In order to solve the technical problems, the invention adopts the following technical scheme: an insulin pen needle-prick prevention needle tip comprises an outer needle cap, an inner needle cap and a needle head; the needle head comprises a needle head body and a needle head seat; the needle head seat comprises an external connecting sleeve and a needle mounting seat arranged in the connecting sleeve; a plurality of grooves are formed in the periphery of the connecting sleeve; the outer needle cap comprises a cap body and a moving ring; the moving ring is arranged at the rear end of the cap body and is hinged with the cap body; the inner side wall of the moving ring is provided with a plurality of convex blocks matched with the grooves; the movable ring is limited on the connecting sleeve through a limiting component; the needle head seat is also provided with an inner needle cap detaching component.

Furthermore, the inner side wall of the cap body is provided with a convex strip which is matched with the groove.

Furthermore, a first magnetic block is arranged outside the needle head seat; and a second magnetic block is arranged on the outer side of the cap body.

Furthermore, the limiting assembly is a limiting stop block arranged at the foremost end of the groove.

Furthermore, a protective sleeve is arranged outside the needle head seat; the protective sleeve is in sliding connection with the needle head seat; a plurality of grooves are formed in the outer side of the anti-slip sleeve; the movable ring is connected with the anti-slip sleeve in a sliding way.

Furthermore, the rear end of the needle head seat is provided with a limiting stop ring, and the rear end of the protective sleeve is connected with the limiting stop ring through a return spring.

Furthermore, the inner needle cap detaching assembly comprises a pushing ring arranged at the front end of the injection needle mounting seat, a pushing ring control assembly arranged in the injection needle mounting seat and a triggering assembly arranged on the connecting sleeve; the two sides of the injection needle mounting seat are symmetrically provided with pushing ring control assemblies, and a first channel, a second channel, a telescopic spring, a fixed block and a movable block of each pushing ring control assembly are arranged on the two sides of the injection needle mounting seat; the first channel and the second channel are vertically arranged and communicated with each other; the first channel is arranged at one end of the injection needle mounting seat facing the inner needle cap, and the front end of the first channel is opened; the second channel is arranged on one side, facing the inner side wall of the connecting sleeve, of the injection needle mounting seat, and the end part of the second channel is open; the movable block is connected with the fixed block through a telescopic spring and is close to the inner needle cap; the fixed block is connected with the second channel in a sliding mode and is controlled to enter the first channel by the trigger assembly; the bottom of the movable block is connected with the bottom of the second channel through a return spring.

Furthermore, the trigger assembly comprises a guide rod connected with the fixed block; the outer side wall of the connecting sleeve is provided with a sliding chute; a sliding block is arranged in the sliding groove; the sliding block is arranged in the sliding groove through a return spring, and the front end of the sliding block is provided with a first inclined surface; the top of the guide rod extends into the sliding groove, and a second inclined plane is arranged on the rear side of the top of the guide rod.

Furthermore, a cotton ball channel is arranged at the head end of the outer needle cap; the side wall of the outer needle cap is provided with a cotton ball body; the rear side of the cotton ball body is connected with the inner side wall of the outer needle cap in a sliding manner; the foremost end of the cotton ball channel is provided with a traction rope through hole, one end of the traction rope penetrates through the traction rope through hole to be connected with the cotton ball body, and the other end of the traction rope is connected with a pull ring on the outer side of the outer needle cap.

The beneficial effects of the invention are as follows:

1) The outer needle cap comprises the cap body and the moving ring, the moving ring is connected with the needle head seat in a sliding mode and limited on the needle head seat, the cap body is hinged with the moving ring, and through the structural arrangement, after injection is finished, the cap body and the needle head seat are installed in a butt joint mode, and accidental puncture when the outer needle cap is installed is avoided.

2) The inner cap body is taken down through the inner needle cap detaching assembly, so that the contact between the hand and the position of the injection needle is reduced, and the accidental puncture is effectively avoided.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

FIG. 3 is a schematic view showing a state where the moving ring moves to the foremost end of the needle base.

FIG. 4 is a schematic view of the inner cap body being removed after the cap body is inverted.

Figure 5 is a schematic view of the connection of the shield and needle mount of example 2.

FIG. 6 is a schematic view of the inner cap detachment assembly.

Fig. 7 is a schematic view of an outer needle cap with a cotton ball.

Detailed Description

The technical solution of the present invention will be clearly and completely described by the following embodiments.

Example 1

Referring to fig. 1-4, the insulin pen with the anti-needle-stick needle tip comprises an outer needle cap 1, an inner needle cap 2 and a needle head 3.

The needle 3 comprises a needle body 31 and a needle seat 32; the needle seat 32 comprises an external connecting sleeve 321 and a needle mounting seat 322 arranged in the connecting sleeve 321; the periphery of the connecting sleeve 321 is provided with a plurality of grooves 33; the inner needle cap 2 is sleeved on the injection needle and positioned at the front end of the mounting seat 322, and the rear end of the inner needle cap 2 is abutted against the front end of the mounting seat 322. The outer needle cap is sleeved on the periphery of the connecting sleeve 321 to hide the inner needle cap 2 inside. The needle head seat is also provided with an inner needle cap detaching component.

The outer needle cap 1 in this embodiment includes a cap body 11 and a moving ring 12.

The moving ring 12 is disposed at the rear end of the cap body 11 and is hinged to the cap body 11. The front end of one side of the moving ring 12 is fixedly provided with a first connecting seat, the rear end of one side of the cap body 11 is provided with a second connecting seat, the first connecting seat and the second connecting seat are connected through a rotating shaft, and the cap body 11 can turn around the rotating shaft.

According to the invention, the inner side wall of the moving ring 12 is provided with a plurality of lugs 13 matched with the grooves 33, and as the lugs arranged on the moving ring 12 are in sliding connection with the grooves 33 on the needle head seat 32, the moving ring is limited to move transversely and cannot rotate in the circumferential direction of the needle head seat 32, so that the needle head seat 32 can be driven to rotate by rotating the moving ring 12 or the cap body 11, and the pillow is convenient to mount and dismount.

The moving ring 12 of the present invention is limited on the needle head seat 32 by a limiting component, which is a limiting stopper 34 arranged at the foremost end of the groove 33. The present invention ensures that moving ring 12 does not disengage needle mount 32 by the provision of a stop assembly.

Preferably, the inner side wall of the cap body 11 of the present invention is provided with a convex strip 14 engaging with the groove 33, so as to ensure that the needle seat 32 is driven to rotate when the cap body 11 is rotated, thereby preventing the joint between the cap body and the shift ring 12 from being damaged when the cap body 11 is rotated.

Preferably, a magnetic block I51 is arranged outside the needle head seat 32; the outer side of the cap body 11 is provided with a second magnetic block 52.

In the embodiment, a first magnetic block 51 and a second magnetic block 52 which are mutually attracted are arranged; after the cap body is turned over, the cap body is adsorbed on the side wall of the needle head seat 32, and insulin injection is not influenced.

The working principle of the embodiment is as follows:

the needle point of this embodiment is when using, at first install the needle point on insulin pen, then the pulling cap body, drive the shifting ring and remove to the foremost end of syringe needle seat, then the cap body is along the pivot upset cap body, the cap body adsorbs the lateral wall at syringe needle seat, take off interior needle cap 2 can, the exhaust air, the measurement of dosage regulation insulin pen according to the doctor, inject, after the injection, one-hand steerable cap body is along pivot upset to with insulin pen horizontally position promptly, the cap body advances the accurate counterpoint with the syringe needle seat, promote the cap body can, and behind the upset cap body, the cap body covers the syringe needle body rather than inside, prevent to be stabbed by the pillow. Can avoid the problems that the needle head seat can not be aligned and the needle head is easy to be punctured when the outer needle cap is sleeved by a single hand in the prior art.

Example 2

As shown in fig. 5, on the basis of embodiment 1, in this embodiment, a protecting cover 4 is arranged outside a needle seat 32; the protective sleeve 4 is connected with the needle head seat 32 in a sliding way; the outer side of the anti-skid sleeve 4 is provided with a plurality of grooves 33; the moving ring 12 is slidably connected with the anti-slip sleeve 4.

The rear end of the needle head seat 32 is provided with a limit stop ring 5, and the rear end of the protective sleeve 4 is connected with the limit stop ring 5 through a return spring 6.

The protecting sleeve 4 in the embodiment extends to the front end of the needle head seat 32, and the foremost end of the needle head body 31 is positioned in the protecting sleeve 4, so that puncture can be effectively prevented, when in injection, a body generates certain pressure on the protecting sleeve 4 to push the protecting sleeve 4 to retreat, and the needle head body 31 is exposed, so that the injection is not influenced; after injection is finished, the protective sleeve 4 is reset under the action of the reset spring 6, so that puncture is prevented more effectively; finally, as in embodiment 1, the cap body is turned over and pushed, so that the outer cap body can be easily installed.

Example 3

As shown in FIG. 3, the present invention has an inner cap removal assembly disposed on needle holder 32; the needle cap detaching component comprises a pushing ring 71 arranged at the front end of the injection needle mounting seat 322, a pushing ring control component arranged in the injection needle mounting seat 322 and a triggering component arranged on the connecting sleeve 321; two sides of the injection needle mounting seat 322 are symmetrically provided with a push ring control assembly, wherein the push ring control assembly comprises a first channel 72, a second channel 73, a telescopic spring 74, a fixed block 75 and a movable block 76; the first channel 72 and the second channel 73 are vertically arranged and communicated with each other; the first channel 72 is arranged at one end of the needle mounting seat 322 facing the inner needle cap 2, and the front end is open; the second channel 73 is arranged on one side of the needle mounting seat 322 facing the inner side wall of the connecting sleeve 321, and the end part of the second channel is open; the movable block 76 is connected with the fixed block 75 through the telescopic spring 74, and the movable block 76 is close to the inner needle cap 2; the fixed block 75 is connected with the second channel 73 in a sliding mode, and the triggering assembly controls the fixed block to enter the first channel 72; the bottom of the movable block 76 is connected with the bottom of the second channel 73 through a return spring 77.

The trigger assembly of the present invention includes a guide bar 77 connected to the fixing block 75; the outer side wall of the connecting sleeve 321 is provided with a chute 78; a slide block 79 is arranged in the sliding groove 78; the sliding block 79 is arranged in the sliding groove 78 through a return spring, and the front end of the sliding block 79 is provided with a first inclined surface 80; the top of the guide rod 77 extends into the sliding groove 78, and the rear side of the top of the guide rod 77 is provided with a second inclined surface 81.

According to the invention, by pushing the sliding block 79, the first inclined plane 80 of the sliding block 79 is matched with the second inclined plane 81 arranged on the rear side of the top of the guide rod 77, the guide rod 77 is pressed downwards in the forward moving process of the sliding block, the guide rod drives the fixed block 75 to move downwards, and a synchronous rod is preferably arranged between the fixed block and the movable block; the synchronous rod is fixed on the fixed block 75, the movable block is provided with a round hole matched with the synchronous rod, and the movable block is sleeved on the synchronous rod through the round hole, so that the fixed block synchronously drives the movable block to move downwards, when the movable block moves downwards to the first channel, the movable block is ejected out of the first channel under the action of the telescopic spring 74, and the movable block drives the push ring 71 to push the inner needle cap 2 down from the injection needle.

The head end of the outer needle cap 1 of the invention is provided with a cotton ball channel 86; the side wall of the outer needle cap 1 is provided with a cotton ball 82; the rear side of the cotton ball 82 is connected with the inner side wall of the outer needle cap 1 in a sliding manner; the foremost end of the cotton ball channel 86 is provided with a traction rope through hole 83, one end of the traction rope 84 passes through the traction rope through hole 83 to be connected with the cotton ball body 82, and the other end of the traction rope 84 is connected with a pull ring 85 on the outer side of the outer needle cap 1.

After insulin is injected, the injection part needs to be pressed by a cotton swab and the like, the cotton swab needs to be found everywhere during ordinary use, the operation is not convenient, and the operation is not convenient because the cotton swab is held by one hand and the cotton swab is injected by one hand during injection. The cotton ball body 82 is arranged in the outer needle cap 1, on one hand, the cotton ball body is not polluted, the cotton ball body can be pulled out through the pull ring before or after injection, the cotton ball body is positioned at the end opening of the outer cap body, the outer cap is covered, and the injection part is pressed by adopting the cotton ball body at the end part of the outer cap body.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention.

Claims

1. An insulin pen needle-prick prevention needle point comprises an outer needle cap (1), an inner needle cap (2) and a needle head (3); the method is characterized in that: the needle (3) comprises a needle body (31) and a needle seat (32); the needle seat (32) comprises an external connecting sleeve (321) and a needle mounting seat (322) arranged in the connecting sleeve (321); a plurality of grooves (33) are formed in the periphery of the connecting sleeve (321); the outer needle cap (1) comprises a cap body (11) and a moving ring (12); the moving ring (12) is arranged at the rear end of the cap body (11) and is hinged with the cap body (11); the inner side wall of the moving ring (12) is provided with a plurality of lugs (13) matched with the grooves (33); the movable ring (12) is limited on the connecting sleeve (321) through a limiting component; the needle head seat (32) is also provided with an inner needle cap detaching assembly.

2. The insulin pen needle stick prevention point of claim 1, characterized in that: the inner side wall of the cap body (11) is provided with a convex strip (14) which is matched with the groove (33).

3. The insulin pen needle stick prevention point according to claim 1, characterized in that: a first magnetic block (51) is arranged outside the needle head seat (32); a second magnetic block (52) is arranged on the outer side of the cap body (11).

4. The insulin pen needle stick tip of claim, wherein: the limiting component is a limiting stop (34) arranged at the foremost end of the groove (33).

5. The insulin pen needle stick prevention point of claim 1, characterized in that: a protective sleeve (4) is arranged outside the needle head seat (32); the protective sleeve (4) is in sliding connection with the needle head seat (32); a plurality of grooves (33) are arranged on the outer side of the anti-skid sleeve (4); the moving ring (12) is connected with the anti-slip sleeve (4) in a sliding way.

6. The insulin pen needle stick prevention point of claim 1, characterized in that: the rear end of the needle head seat (32) is provided with a limiting stop ring (5), and the rear end of the protective sleeve (4) is connected with the limiting stop ring (5) through a return spring (6).

7. The insulin pen needle stick prevention point of claim 1, characterized in that: the inner needle cap detaching assembly comprises a pushing ring (71) arranged at the front end of the injection needle mounting seat (322), a pushing ring control assembly arranged in the injection needle mounting seat (322) and a triggering assembly arranged on the connecting sleeve (321); push ring control assemblies are symmetrically arranged on two sides of the injection needle mounting seat (322), and a first channel (72), a second channel (73), an expansion spring (74), a fixed block (75) and a movable block (76) of the push ring control assemblies are arranged on the two sides of the injection needle mounting seat; the first channel (72) and the second channel (73) are vertically arranged and are communicated with each other; the first channel (72) is arranged at one end, facing the inner needle cap (2), of the injection needle mounting seat (322), and the front end of the first channel is open; the second channel (73) is arranged on one side, facing the inner side wall of the connecting sleeve (321), of the injection needle mounting seat (322), and the end part of the second channel is open; the movable block (76) is connected with the fixed block (75) through a telescopic spring (74), and the movable block (76) is close to the inner needle cap (2); the fixed block (75) is connected with the second channel (73) in a sliding mode and is controlled to enter the first channel (72) by the trigger assembly; the bottom of the movable block (76) is connected with the bottom of the second channel (73) through a return spring (77).

8. The insulin pen needle stick prevention tip according to claim 7, characterized in that: the trigger component comprises a guide rod (77) connected with the fixed block (75); the outer side wall of the connecting sleeve (321) is provided with a sliding groove (78); a slide block (79) is arranged in the sliding groove (78); the sliding block (79) is arranged in the sliding groove (78) through a return spring, and the front end of the sliding block (79) is provided with a first inclined plane (80); the top of the guide rod (77) extends into the sliding groove (78), and a second inclined plane (81) is arranged on the rear side of the top of the guide rod (77).

9. The insulin pen needle stick prevention point of claim 1, characterized in that: the head end of the outer needle cap (1) is provided with a cotton ball channel (86); the side wall of the outer needle cap (1) is provided with a cotton ball body (82); the rear side of the cotton ball body (82) is connected with the inner side wall of the outer needle cap (1) in a sliding manner; the foremost end of the cotton ball channel (86) is provided with a traction rope through hole (83), one end of the traction rope (84) penetrates through the traction rope through hole (83) to be connected with the cotton ball body (82), and the other end of the traction rope is connected with a pull ring (85) on the outer side of the outer needle cap (1).