CN219271790U

CN219271790U - Insulin injection structure

Info

Publication number: CN219271790U
Application number: CN202222463207.5U
Authority: CN
Inventors: 肖璟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-18
Filing date: 2022-09-18
Publication date: 2023-06-30
Anticipated expiration: 2032-09-18

Abstract

The utility model discloses an insulin injection structure, which comprises a pen body, a pen rack, a pen refill, a pen cap and a needle head, wherein a clamping mechanism used for clamping an inner needle cap and facilitating the disassembly and assembly of a patient is arranged in the pen cap, the inner needle cap is sleeved on the outer side of a needle body of the needle head, and the needle head is movably clamped with the inner needle cap through a convex ring fixedly connected with the inner needle cap.

Description

Insulin injection structure

Technical Field

The utility model relates to the technical field of insulin pens, in particular to an insulin injection structure.

Background

The needle of the insulin injection pen used for many times is also a disposable article, and the needle cap are required to be discarded after the insulin injection pen is used, so that the needle cap can be usually returned to the needle in order to avoid accidental injury caused by needle recovery, but because the needle cap is small in size, certain hidden danger still exists when the needle cap is covered. To this end, the present utility model provides an insulin injection structure.

Disclosure of Invention

The present utility model is directed to an insulin injection structure, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an insulin injection structure, includes pen body, penholder, refill, pen cap and syringe needle, the internally mounted of pen cap has the fixture that is used for the convenient patient's dismouting of centre gripping inner needle cap, the outer side at the syringe needle body is cup jointed to the inner needle cap, and fixture's setting can make the patient take off the inner needle cap from the syringe needle under the condition of contactless inner needle cap, perhaps install the inner needle cap again on the syringe needle, the syringe needle is through its fixedly connected with bulge loop and inner needle cap movable joint on the inner needle cap, open the annular with bulge loop looks adaptation, bulge loop and annular are interference fit.

Preferably, the fixture includes elastic rubber piece, elastic rubber piece fixed connection is in the inside of pen cap, open on the terminal surface of elastic rubber piece have with the jack of interior needle cap looks adaptation, the elasticity of elastic rubber piece self can make the lateral wall of jack clip the interior needle cap that will be located its inside under the condition that does not have external force, avoid interior needle cap to drop, open on the both sides of elastic rubber piece and being located the pen cap has the through-hole, and the inside fixedly connected with rubber membrane of through-hole, the patient can make the elastic rubber piece warp the extrusion and be located the inside interior needle cap of jack through pressing the rubber membrane, with pen body and pen cap separately this moment, can take off interior needle cap.

Preferably, the shape of the jack is a horn shape with large outside and small inside, and the horn-shaped arrangement can enable the inner needle cap to be better inserted into the jack.

Preferably, the clamping mechanism comprises a fixing ring and an inserting ring, the pen cap comprises a sleeve and an inserting rod, one end of the inserting rod is inserted into the sleeve, the inserting rod and the sleeve are connected with each other through a rubber tube with folds, the inserting rod can slide but cannot be separated from the sleeve through the arrangement of the rubber tube, the fixing ring is fixedly connected to the inner side wall of the sleeve, the inserting ring is fixedly connected to the inner end face of the inserting rod, and one end of the inserting rod, which is fixedly connected with the inserting ring, is inserted into the sleeve;

the shape of the inner side surface of the fixed ring is a horn shape with large outside and small inside, the shape of the outer side surface of the insert ring is matched with the shape of the inner side surface of the fixed ring, and when the insert ring moves downwards, the insert ring deforms under the action of the inner diameter of the fixed ring, so that the inner needle cap is clamped.

Preferably, the inner side surface of the fixing ring is fixedly connected with an extrusion ring, the inner end surface of the insertion ring is an arc surface, and the extrusion ring can enable the insertion ring to better extrude the inner needle cap.

Compared with the prior art, the utility model has the beneficial effects that: by arranging the pen cap and the clamping mechanism, the utility model realizes that the needle with the inner needle cap can be inserted into the pen cap after the needle is arranged on the pen core, and the inner needle cap is removed or sleeved back by the clamping mechanism without contacting the inner needle cap, so that the risk of accidental stabbing is reduced.

Drawings

FIG. 1 is a schematic overall structure of a first embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1 in accordance with the present utility model;

FIG. 3 is a cross-sectional view of the cap of the present utility model;

FIG. 4 is an exploded view of FIG. 3 in accordance with the present utility model;

FIG. 5 is a schematic diagram of the overall structure of a second embodiment of the present utility model;

FIG. 6 is an exploded view of FIG. 5 in accordance with the present utility model;

FIG. 7 is a cross-sectional view of a sleeve according to the present utility model

FIG. 8 is an exploded view of FIG. 7 in accordance with the present utility model;

fig. 9 is an exploded view of the inner needle cap and needle of the present utility model.

In the figure: 1. the pen comprises a pen body, 2, a pen rack, 3, a pen core, 4, a pen cap, 401, a sleeve, 402, a plug rod, 5, a needle, 6, a pen clip, 7, a convex ring, 8, a ring groove, 9, an elastic rubber block, 10, a jack, 11, a rubber film, 12, a fixed ring, 13, a plug ring, 14, a rubber tube, 15, a squeezing ring, 16 and an inner needle cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-9, the present utility model provides a technical solution: the utility model provides an insulin injection structure, includes pen body 1, penholder 2, refill 3, cap 4 and syringe needle 5, still is equipped with pen clamp 6 on the cap 4 in addition, and the same with prior art's structure refill 3 is installed on penholder 2, and pen holder 2 is installed on pen body 1, and syringe needle 5 is installed on refill 3 when using, and cap 4 and pen body 1 interconnect cover are in the outside of pen holder 2 when not using.

The function is the same with other insulin injection pens of prior art, and the internally mounted of pen body 1 has the push rod (because it is the prior art of wide application to the technical problem that this application solved mainly concentrates on the position of pen cap 4, is not unnecessary with it, so do not make in detail), can control the injection of refill 3 inside insulin, and its one end of being connected with refill 3 before syringe needle 5 uses is covered with the sticker, can avoid syringe needle 5 to receive the pollution.

The specific internally mounted of pen cap 4 is used for the fixture of the convenient patient dismouting of centre gripping inner needle cap 16, inner needle cap 16 cup joints in the outside of the needle body of syringe needle 5, and fixture's setting can make the patient take off inner needle cap 16 from syringe needle 5 under the circumstances of contactless inner needle cap 16, perhaps install inner needle cap 16 again on syringe needle 5 to under the prerequisite of avoiding patient injury, can throw away inner needle cap 16 together on syringe needle 5, make things convenient for subsequent recovery processing work.

Specifically, the needle 5 is movably clamped with the inner needle cap 16 through the convex ring 7 fixedly connected with the needle, the inner needle cap 16 is provided with the annular groove 8 (made of plastic) matched with the convex ring 7, and the convex ring 7 and the annular groove 8 are in interference fit, so that the inner needle cap 16 can not fall off from the needle 5 at will, and the needle body of the needle 5 can be protected.

Examples

The fixture can adopt the following form, fixture includes elastic rubber piece 9, and elastic rubber piece 9 fixed connection is in the inside of cap 4, open on the terminal surface of elastic rubber piece 9 have with the jack 10 of interior cap 16 looks adaptation, jack 10 is located elastic rubber piece 9 and is close to on the terminal surface of cap 4 opening part, install syringe needle 5 on refill 3 earlier when using, then with cap 4 interconnect with body 1 again, the inside of jack 10 can be inserted to interior cap 16 at this moment, the internal diameter of jack 10 slightly is less than the external diameter of interior cap 16, under the condition that does not have external force, elastic rubber piece 9 self elasticity can make the lateral wall of jack 10 will be located its inside interior cap 16, avoid interior cap 16 to drop, jack 10 is less than the frictional force between bulge loop 7 and the annular 8 to interior cap 16, can be under the condition that does not extrude elastic rubber piece 9 from outside, make interior cap 16 and syringe needle 5 move together, both sides and be located cap 4 and interconnect with body 1, and can take out of the cap 5 through the inside cap 11 and the cap 11 and take out of the cap 5 into contact with the cap 5 again, can realize that the cap 1 can be taken out of the cap 5 is located the cap 5 with the inside cap 5 and the cap 11 is located to the cap 5, can be taken out of contact with the cap 1 again, can realize the cap 1.

Specifically, the shape of the insertion hole 10 is a horn shape with a large outside and a small inside, and as shown in fig. 4, the lower end of the insertion hole 10 is an outer end, and the horn-shaped arrangement can enable the inner needle cap 16 to be better inserted into the insertion hole 10.

Examples

In order to avoid improper force, the inner needle cap 16 cannot be removed, and the clamping mechanism further comprises a fixing ring 12 and an inserting ring 13, wherein the pen cap 4 comprises a sleeve 401 and an inserting rod 402, one end of the inserting rod 402 is inserted into the sleeve 401, the inserting rod 402 and the sleeve 401 are connected with each other through a rubber tube 14 with folds, one end of the inserting rod 402 inserted into the sleeve 401 can slide freely within a certain range, but the inserting rod 402 cannot be separated from the sleeve 401, the fixing ring 12 is fixedly connected to the inner side wall of the sleeve 401, the inserting ring 13 is fixedly connected to the inner end face of the inserting rod 402, one end of the inserting rod 402 is fixedly connected with the inserting ring 13 and is inserted into the sleeve 401, and at the moment, the inserting ring 13 is inserted into the fixing ring 12;

the shape of the inner side surface of the fixed ring 12 is a horn shape with large outside and small inside, as shown in fig. 8, the upper end of the fixed ring 12 is an outer end, the shape of the outer side surface of the insert ring 13 is matched with the shape of the inner side surface of the fixed ring 12, the inner diameter of the insert ring 13 is matched with the size of the inner needle cap 16, as shown in fig. 7, when the insert ring 13 moves downwards, the insert ring 13 deforms under the action of the inner diameter of the fixed ring 12, so that the inner needle cap 16 is clamped, and at the moment, the pen body 1 and the pen cap 4 are separated by holding the sleeve 401, and the inner needle cap 16 can be separated from the needle head 5;

when the inner needle cap 16 needs to be covered on the needle head 5, the pen body 1 and the pen cap 4 are connected with each other, at the moment, the inner needle cap 16 can be plugged on the needle body of the needle head 5 again, then the pen clip 6 (arranged on the outer side of the inserted rod 402) is pushed, the inserted rod 402 moves in a direction away from the sleeve 401, the inserted rod 402 drives the inserted ring 13 to move together, the fixed ring 12 cannot squeeze the inserted ring 13, the inserted ring 13 cannot squeeze the inner needle cap 16, and at the moment, the inner needle cap 16 moves outside the pen cap 4 together with the needle head 5;

since the length of the movement of the plunger 402 is the same each time, the shape of the fixing ring 12 to change the insert ring 13 is also constant, and the pressing force of the insert ring 13 to the inner cap 16 is also constant, so that the cap 4 is not easily separated from the pen body 1 due to the pressing force being too large and the inner cap 16 is not fixed due to the pressing force being too small, so that it moves to the outside of the cap 4 together with the needle 5, compared with the first embodiment.

Specifically, the inner side surface of the fixing ring 12 is fixedly connected with an extrusion ring 15, the inner end surface of the insert ring 13 is an arc surface, and the extrusion ring 15 can better apply extrusion force to the insert ring 13, so that the insert ring 13 can better extrude the inner needle cap 16.

Working principle: when injection is needed, the needle head 5 is firstly arranged on the pen core 3, then the pen cap 4 is connected with the pen body 1 again, the clamping mechanism is controlled to clamp the inner needle cap 16, and then the pen body 1 and the pen cap 4 can be separated, so that the inner needle cap 16 separates the needle head 5;

after the injection is finished, the pen body 1 and the pen cap 4 are connected with each other (at the moment, the inner needle cap 16 and the pen needle 5 are reconnected together), the clamping mechanism is not used for clamping the inner needle cap 16, then the pen body 1 and the pen cap 4 can be separated, the pen needle 5 drives the inner needle cap 16 to move outside the pen cap 4 together, and then the pen needle 5 and the pen core 3 are removed, so that the pen needle 5 can be discarded or collected.

Claims

1. Insulin injection structure, including body (1), penholder (2), refill (3), pen cap (4) and syringe needle (5), its characterized in that: the pen is characterized in that a clamping mechanism used for clamping an inner needle cap (16) is arranged in the pen cap (4), the inner needle cap (16) is sleeved on the outer side of a needle body of the needle head (5), and the needle head (5) is movably clamped with the inner needle cap (16) through a convex ring (7) fixedly connected with the needle head.

2. An insulin injection structure according to claim 1, characterized in that: the clamping mechanism comprises an elastic rubber block (9), a jack (10) matched with the inner needle cap (16) is formed in the end face of the elastic rubber block (9), through holes are formed in the two sides of the elastic rubber block (9) and located on the pen cap (4), and a rubber film (11) is fixedly connected to the inside of each through hole.

3. An insulin injection structure according to claim 2, characterized in that: the shape of the jack (10) is a horn shape with large outside and small inside.

4. An insulin injection structure according to claim 1, characterized in that: the pen cap (4) comprises a sleeve (401) and an inserting rod (402), one end of the inserting rod (402) is inserted into the sleeve (401), the inserting rod (402) and the sleeve (401) are connected with each other through a rubber tube (14) with folds, the fixing ring (12) is fixedly connected to the inner side wall of the sleeve (401), and the inserting ring (13) is fixedly connected to the inner end face of the inserting rod (402);

the shape of the inner side surface of the fixed ring (12) is a horn shape with large outside and small inside, and the shape of the outer side surface of the inserting ring (13) is matched with the shape of the inner side surface of the fixed ring (12).

5. An insulin injection structure according to claim 4, characterized in that: an extrusion ring (15) is fixedly connected to the inner side surface of the fixed ring (12), and the inner end surface of the insertion ring (13) is an arc surface.