CN217339618U - Prevent stabbing insulin pen - Google Patents

Abstract

The utility model provides a prevent stabbing insulin pen belongs to insulin pen technical field. The prior art is easy to stab. The injection push key is characterized in that an extension rod is arranged on the top of the injection push key in an upward mode, the penetrating channel is used for containing an insulin pen, the puncture-proof device comprises a button and a switching device, the top end of the button extends out of the puncture-proof shell from the penetrating channel, the bottom end of the button penetrates through the clamping ring and abuts against the top of the rotating ring, a movable channel penetrates through the button and is communicated with the penetrating channel, the extension rod extends out of the movable channel in an upward mode, the extension rod and the button are not interfered with each other, dislocation devices are symmetrically arranged on two sides of the side wall of the lower portion of the penetrating channel at the bottom of the rotating ring and are used for driving a needle head to be separated from the pen body, and in a first state, the needle head extends out of the bottom of the puncture-proof shell; in the second state, the needle is retracted into the puncture-proof shell; in a third state, the dislocation device drives the needle head to be separated from the pen body; the button is used for people to press so as to control the switching device to work, and the first state, the second state and the third state are sequentially switched and circulated. Preventing puncture.

Description

Prevent stabbing insulin pen

Technical Field

The utility model belongs to the technical field of prevent stabbing insulin pen, in particular to prevent stabbing insulin pen.

Background

The insulin pen avoids the tedious process that the patient draws insulin in the insulin medicine bottle by using an injector, can avoid the embarrassment that the patient injects insulin in public places, and brings convenience for the patient with poor eyesight or even blindness to inject insulin.

In the prior art, the needle of the insulin pen is connected with the refill of the insulin pen for preventing the insulin pen from being punctured through threads, and after the medical staff injects the insulin for patients, the needle needs to be screwed off by hands, so that the insulin pen is easy to puncture.

Disclosure of Invention

The utility model aims at providing a prevent stabbing insulin pen to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: an anti-stab insulin pen is characterized by comprising an anti-stab mechanism, an insulin pen and a needle head, wherein the insulin pen comprises a pen body and an injection push key, the needle head is detachably connected with the bottom of the pen body, an extension rod is upwards arranged at the top of the injection push key, the anti-stab mechanism comprises an anti-stab shell and an anti-stab device arranged in the anti-stab shell, a penetrating channel is arranged in the anti-stab shell in a penetrating manner and used for accommodating the insulin pen, the anti-stab device comprises a button and a switching device, the top end of the button extends out of the anti-stab shell from the penetrating channel, the switching device comprises a clamping ring and a rotating ring, the bottom end of the button penetrates through the clamping ring and is abutted against the top of the rotating ring, a movable channel is arranged in a penetrating manner and communicated with the penetrating channel, and the extension rod extends upwards from the movable channel, the extension rod and the button are not interfered with each other, dislocation devices are symmetrically arranged on two sides of the side wall of the lower part of the penetrating channel at the bottom of the rotating ring and used for driving the needle head to be separated from the pen body, and in a first state, the needle head extends out of the bottom of the puncture-proof shell; a second state in which the needle is retracted within the puncture resistant housing; in a third state, the dislocation device drives the needle head to be separated from the pen body; the button is used for being pressed by a person to control the switching device to work so that the first state, the second state and the third state are sequentially switched and circulated.

The utility model discloses a theory of operation: in the first state, the needle head extends out from the bottom of the puncture-proof shell, and the extension rod extends upwards from the movable channel on the button, so that even if the injection push key is positioned in the puncture-proof shell, medical personnel can inject insulin for a patient by pressing the extension rod; if the patient needs to wait for a moment in case of occurrence and cannot inject immediately, the medical staff can press the button to enter the second state, and the needle head is positioned in the puncture-proof shell and cannot puncture the medical staff, so that the safety is high; when the needle head needs to be taken off after the injection of the patient, the medical staff presses the button again, the needle head is separated from the pen body and drops outside from the inside of the wearing passage, and the medical staff can take the utility model discloses take sharp weapon box top, the needle head can directly fall into the sharp weapon box like this.

In the insulin pen with the puncture prevention function, the puncture prevention shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are connected through threads to form the puncture prevention shell.

In the stab-resistant insulin pen, a convex ring is fixedly arranged at the upper part of the pen body, an annular bulge is arranged on the lower side wall of the penetrating channel along the circumference, a first return spring is fixed on the annular bulge, the top of the first return spring is abutted to the bottom of the convex ring, the peripheral wall of the clamping ring is fixed on the side wall of the penetrating channel in the upper shell, a plurality of notch groups are arranged on the lower side wall of the clamping ring, each notch group comprises a first notch, a second notch and a third notch, the lengths of the first notch, the second notch and the third notch are sequentially reduced, the bottoms of the first notch, the second notch and the third notch are arc-shaped inclined planes, the connecting parts among the first notch, the second notch and the third notch are inclined planes, and extending grooves are formed by upwards extending the first notch, the second notch and the third notch on the inner side wall of the clamping ring, the button bottom is provided with a plurality of tooth's sockets along the girth, be provided with a plurality of stoppers on the lateral wall of button lower part, the extension groove is used for supplying the stopper card is gone into, every the stopper all is located two between the tooth's socket, evenly distributed has a plurality of jack catchs on the lateral wall of swivel becket, the bottom butt of button is in the top of swivel becket makes the jack catch card is gone into the tooth's socket, when the people pressed down the button, the jack catch can block into in first breach or second breach or the third breach, the bottom of swivel becket is used for the butt to be in the top of bulge loop, wear to establish and still be provided with the butt piece on the passageway lateral wall, the butt piece is located the below of second breach.

In foretell prevent stabbing insulin pen, the butt joint mouth that is used for the butt joint syringe needle is offered to the handwriting bottom, the syringe needle includes the pedestal and installs the needle tubing on the pedestal, the one end tip that the needle tubing was kept away from to the pedestal is provided with the card portion of going into to the butt joint mouth that is used for going into, be provided with the dislocation ring on the one end lateral wall that the needle tubing was kept away from to the pedestal, the dislocation device is including dislocating piece and second reset spring, the holding tank has all been seted up to the internal passageway lower part both sides lateral wall of wearing to establish of inferior valve, second reset spring's one end is fixed in the bottom of holding tank, second reset spring's the other end with the one end fixed connection of dislocating piece, the one end that the second reset spring was kept away from to the dislocation piece sets up to the inclined plane, the inclined plane is from the lateral wall of wearing to establish the passageway to central downward sloping gradually.

Compared with the prior art, the utility model has the advantages of prevent stabbing.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a schematic view of a part of the structure of the present invention.

Fig. 3 is a schematic sectional structure view in the first state of the present invention.

Fig. 4 is a schematic cross-sectional view of the second state of the present invention.

Fig. 5 is a schematic cross-sectional view of the third state of the present invention.

Fig. 6 is a schematic structural view of the middle button and the snap ring of the present invention.

In the figure, 1, a stab-resistant mechanism; 2. an insulin pen; 3. a needle head; 4. a pen body; 5. an injection push key; 6. an extension rod; 7. a butt joint port; 8. a convex ring; 9. a base body; 10. a needle tube; 11. dislocation loops; 12. a stab-resistant housing; 13. a stab-resistant device; 14. a channel is arranged in a penetrating way; 15. an annular projection; 16. a first return spring; 17. a button; 18. a snap ring; 19. a rotating ring; 20. a set of notches; 21. a first notch; 22. a second notch; 23. a third notch; 24. an extension groove; 25. a tooth socket; 26. a limiting block; 27. a movable channel; 28. a claw; 29. a dislocation device; 30. a dislocation block; 31. a second return spring; 32. accommodating a tank; 33. an upper housing; 34. a lower housing; 35. a butting block; 36. a snap-in portion; 37. and a switching device.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-6, the stab-resistant insulin pen comprises a stab-resistant mechanism 1, an insulin pen 2 and a needle 3, wherein the insulin pen 2 comprises a pen body 4 and an injection push button 5, the needle 3 is detachably connected with the bottom of the pen body 4, an extension rod 6 is upwardly arranged at the top of the injection push button 5, the stab-resistant mechanism 1 comprises a stab-resistant housing 12 and a stab-resistant device 13 arranged in the stab-resistant housing 12, the stab-resistant housing 12 is provided with a through passage 14 through which the through passage 14 penetrates, the insulin pen 2 is accommodated in the through passage 14, the stab-resistant device 13 comprises a button 17 and a switching device 37, the top end of the button 17 extends out of the stab-resistant housing 12 from the through passage 14, the switching device 37 comprises a snap ring 18 and a rotating ring 19, the bottom end of the button 17 penetrates through the snap ring 18 to abut against the top of the rotating ring 19, the button 17 is provided with a movable passage 27 through which the movable passage 27 is communicated with the through passage 14, the extension rod 6 extends upwardly from the movable passage 27, the extension rod 6 and the button 17 do not interfere with each other, dislocation devices 29 are symmetrically arranged on two sides of the lower side wall of the penetrating channel 14 at the bottom of the rotating ring 19, the dislocation devices 29 are used for driving the needle head 3 to be separated from the pen body 4, and in a first state, the needle head 3 extends out of the bottom of the puncture-proof shell 12; in a second state, the needle 3 is retracted into the anti-prick housing 12; in the third state, the dislocation device 29 drives the needle head 3 to be separated from the pen body 4; the button 17 is pressed by a person to control the operation of the switching device 37 so that the first state, the second state, and the third state are sequentially switched and circulated.

In further detail, the puncture-proof housing 12 comprises an upper housing 33 and a lower housing 34, the upper housing 33 and the lower housing 34 are connected by screw threads to form the puncture-proof housing 12, so that the upper housing 33 and the lower housing 34 can be disassembled, then a new insulin pen 2 is inserted into the lower housing 34, the upper housing 33 is connected by butt joint, and the screw threads are tightly connected and are convenient to disassemble.

In more detail, the upper portion of the pen body 4 is fixedly provided with a convex ring 8, the lower side wall of the through passage 14 is provided with an annular protrusion 15 along the circumference, the annular protrusion 15 is fixed with a first return spring 16, the top of the first return spring 16 abuts against the bottom of the convex ring 8, the outer circumferential wall of the clamping ring 18 is fixed on the side wall of the through passage 14 in the upper shell 33, the lower side wall of the clamping ring 18 is provided with a plurality of notch groups 20, each notch group 20 comprises a first notch 21, a second notch 22 and a third notch 23, the lengths of the first notch 21, the second notch 22 and the third notch 23 are sequentially reduced, the bottoms of the first notch 21, the second notch 22 and the third notch 23 are provided with arc inclined planes, the connecting portions among the first notch 21, the second notch 22 and the third notch 23 are inclined planes, the first notch 21, the second notch 22 and the third notch 23 all extend upwards to form an extension groove 24 on the inner side wall of the clamping ring 18, the bottom of the button 17 is provided with a plurality of tooth grooves 25 along the circumference, the side wall of the lower part of the button 17 is provided with a plurality of limiting blocks 26, the extension groove 24 is used for the limiting blocks 26 to be clamped in, each limiting block 26 is positioned between two tooth grooves 25, a plurality of clamping claws 28 are uniformly distributed on the side wall of the rotating ring 19, the bottom of the button 17 is abutted against the top of the rotating ring 19 to ensure that the clamping claws 28 are clamped in the tooth grooves 25, when a person presses the button 17, the clamping claws 28 can be clamped in the first notch 21, the second notch 22 or the third notch 23, the bottom of the rotating ring 19 is abutted against the top of the convex ring 8, the side wall of the penetrating channel 14 is also provided with an abutting block 35, and the abutting block 35 is positioned below the second notch 22; under the first state, the claw 28 is clamped in the second notch 22, at the moment, the needle head 3 extends out from the bottom of the puncture-proof shell 12, when a patient needs to inject, a medical worker can press the extension rod 6 to push the injection push key 5 to inject the patient, if the situation occurs when the patient injects, a user needs to wait for a period of time or the medical worker presses the button 17 to enter the second state, at the moment, the needle head 3 is retracted into the puncture-proof shell 12, the medical worker does not need to worry about being punctured, the medical worker presses the button 17 again, the claw 28 is clamped in the tooth groove 25, because the limiting block 26 is positioned in the extension groove 24, the tip of the claw 28 is positioned in the middle of the side wall with the tooth groove 25 inclined upwards, the button 17 descends to drive the rotating ring 19 to descend, the limiting block 26 also moves downwards into the second notch 22, the claw 28 leaves the second notch 22, and the distance between the abutting block 35 and the opening of the second notch 22 is enough for the claw 28 to enable the tip of the claw 28 descending into the tip of the top of the claw 28 to contact with the connection between the second notch 22 and the first notch 22 The bottom of the claw 28 will abut against the top of the abutting block 35, which can prevent the medical staff from pressing the button 17 to push the needle 3 too much to lower the convex ring 8 on the needle 3 to the bottom of the dislocation block 30, thereby causing the needle 3 to detach from the insulin pen 2, the button 17 is released, the rotating ring 19 is lifted up under the action of the first return spring 16, the claw 28 is lifted up along the side wall inclined upwards along the tooth slot 25 until the tip of the claw 28 abuts against the bottom of the tooth slot 25, the claw 28 enters the first notch 21 along the inclined plane of the connection part between the second notch 22 and the first notch 21 in the process, the length of the first notch 21 is longest, therefore, the needle 3 will retract into the puncture-proof housing 12, the medical staff presses the button 17 again, likewise, the claw 28 is transferred from the first notch 21 to the third notch 23, due to the arrangement of the inclined plane, the dislocation block 30 will be pressed and retracted into the accommodating groove 32 by the dislocation ring 11 when moving downwards, the needle 3 now protrudes from the bottom of the puncture proof housing 12 and the dislocation loop 11 on the needle 3 is located below the dislocation block 30.

In more detail, the bottom of the pen body 4 is provided with a docking port 7 for docking the needle 3, the needle 3 comprises a seat body 9 and a needle tube 10 installed on the seat body 9, the end part of one end of the seat body 9, which is far away from the needle tube 10, is provided with a clamping part 36 for clamping the needle tube 7, the side wall of one end of the seat body 9, which is far away from the needle tube 10, is provided with a dislocation ring 11, the dislocation device 29 comprises a dislocation block 30 and a second return spring 31, the side walls of the two sides of the lower part of the through channel 14 in the lower shell 34 are both provided with accommodating grooves 32, one end of the second return spring 31 is fixed at the bottom of the accommodating grooves 32, the other end of the second return spring 31 is fixedly connected with one end of the dislocation block 30, which is far away from the second return spring 31, is set as an inclined plane, and the inclined plane gradually inclines downwards from the side wall of the through channel 14 to the center; the button 17 is pressed down again in the second state, the claw 28 is transferred to the first second gap from the third gap 23 again, namely, the second state is transferred, the claw 28 is lifted and transferred to the second gap 22, the dislocation ring 11 is propped against by the dislocation block 30, and the needle head 3 and the pen body 4 are clamped into the butt joint port 7 through the clamping part 36, so that the needle head 3 can be separated from the pen body 4 under the action of the lifting force and the dislocation block 30, the third state is achieved, the medical staff is not required to manually screw down the needle head 3, and the safety is very high.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although a large number of terms are used here more, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (4)

1. The utility model provides a prevent stinging insulin pen, its characterized in that, including preventing stinging mechanism (1), insulin pen (2) and syringe needle (3), insulin pen (2) are including handwriting (4) and injection push away key (5), syringe needle (3) with the bottom of handwriting (4) can be dismantled and be connected, the injection pushes away key (5) top and upwards is provided with extension rod (6), prevent stinging mechanism (1) including preventing stinging casing (12) and set up in preventing stinging device (13) of preventing stinging casing (12), prevent stinging casing (12) and run through being provided with and wear to establish passageway (14), wear to establish passageway (14) and be used for holding insulin pen (2), prevent stinging device (13) including button (17) and auto-change over device (37), button (17) top is worn to establish passageway (14) and is stretched out prevent stinging casing (12), auto change over device (37) include joint ring (18) and rotating ring (19), the bottom end of the button (17) penetrates through the clamping ring (18) and abuts against the top of the rotating ring (19), a movable channel (27) penetrates through the button (17), the movable channel (27) is communicated with the penetrating channel (14), the extension rod (6) extends upwards from the movable channel (27), the extension rod (6) and the button (17) are not interfered with each other, dislocation devices (29) are symmetrically arranged on two sides of the side wall of the lower portion of the penetrating channel (14) at the bottom of the rotating ring (19), the dislocation devices (29) are used for driving the needle head (3) to be separated from the pen body (4), and in a first state, the needle head (3) extends out from the bottom of the puncture-proof shell (12); a second state, the needle (3) being retracted into the puncture-proof housing (12); in a third state, the dislocation device (29) drives the needle head (3) to be separated from the pen body (4); the button (17) is used for being pressed by a person so as to control the switching device (37) to work, so that the first state, the second state and the third state are sequentially switched and circulated.

2. A puncture-proof insulin pen according to claim 1, wherein the puncture-proof housing (12) comprises an upper housing (33) and a lower housing (34), the upper housing (33) and the lower housing (34) are connected by screw threads to form the puncture-proof housing (12).

3. The insulin pen with the stab prevention function according to claim 2, wherein a convex ring (8) is fixedly arranged at the upper part of the pen body (4), an annular protrusion (15) is arranged on the lower side wall of the through channel (14) along the circumference, a first return spring (16) is fixed on the annular protrusion (15), the top of the first return spring (16) abuts against the bottom of the convex ring (8), the outer circumferential wall of the clamping ring (18) is fixed on the side wall of the through channel (14) in the upper shell (33), a plurality of notch groups (20) are arranged on the lower side wall of the clamping ring (18), each notch group (20) comprises a first notch (21), a second notch (22) and a third notch (23), the lengths of the first notch (21), the second notch (22) and the third notch (23) are sequentially reduced, and the first notch (21) and the second notch (22) are sequentially reduced, The bottom of the second notch (22) and the bottom of the third notch (23) are arc-shaped inclined planes, the connecting parts among the first notch (21), the second notch (22) and the third notch (23) are inclined planes, the first notch (21), the second notch (22) and the third notch (23) are respectively extended upwards to form an extending groove (24) on the inner side wall of the clamping ring (18), the bottom of the button (17) is provided with a plurality of tooth grooves (25) along the circumference, the side wall of the lower part of the button (17) is provided with a plurality of limiting blocks (26), the extending groove (24) is used for clamping the limiting blocks (26), each limiting block (26) is positioned between two tooth grooves (25), the side wall of the rotating ring (19) is uniformly provided with a plurality of clamping claws (28), the bottom of the button (17) is abutted to the top of the rotating ring (19) to ensure that the clamping claws (28) are clamped into the tooth grooves (25), when the people pushes down button (17), jack catch (28) can be gone into in first breach (21) or second breach (22) or third breach (23), the bottom of rotating ring (19) is used for the butt and is in the top of bulge loop (8), wear to establish still to be provided with butt piece (35) on passageway (14) lateral wall, butt piece (35) are located the below of second breach (22).

4. The insulin pen with the stab prevention function according to claim 3, wherein the bottom of the pen body (4) is provided with a docking port (7) for docking the needle (3), the needle (3) comprises a seat body (9) and a needle tube (10) mounted on the seat body (9), the end of the seat body (9) far away from the needle tube (10) is provided with a clamping portion (36) for clamping the docking port (7), the sidewall of the seat body (9) far away from the needle tube (10) is provided with a dislocation ring (11), the dislocation device (29) comprises a dislocation block (30) and a second return spring (31), the sidewalls of the two sides of the lower portion of the through channel (14) in the lower housing (34) are both provided with accommodating grooves (32), one end of the second return spring (31) is fixed at the bottom of the accommodating grooves (32), and the other end of the second return spring (31) is fixedly connected with one end of the dislocation block (30), one end, far away from the second return spring (31), of the dislocation block (30) is set to be an inclined plane, and the inclined plane gradually inclines downwards from the side wall of the penetrating channel (14) to the center.

Images