CN213191784U

CN213191784U - Novel insulin pen

Info

Publication number: CN213191784U
Application number: CN202020468658.6U
Authority: CN
Inventors: 姚静珠; 陆维
Original assignee: Shanghai Jiading District Central Hospital
Current assignee: Shanghai Jiading District Central Hospital
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2021-05-14
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a novel insulin pen, which belongs to the technical field of medical instruments and is used for solving the technical problems that when medical staff or patients of insulin pens in the prior art remove needles in the using process, hands are easily accidentally injured by mistake in the operating process, and are easily infected by bacteria and viruses in medical wastes when being pricked, so that great potential safety hazards exist; the utility model is provided with a pen body with a pen cap, a needle seat provided with a needle head, and a needle cap covering the outside of the needle seat; wherein, the handwriting can be connected with the needle file plug, and the needle file inner wall is formed with the locating hole symmetrically, still including can follow the handwriting radially flexible, be used for with the locating hole block and fix the button on the handwriting with the needle file to and take off the needle device, take off the needle device and laid along handwriting axis direction towards the needle file exert effort, drive the needle file keep away from the elastic drive ware of handwriting, the utility model has the advantages of novel structure, can get rid of the syringe needle safely, avoid accidental injury personnel, safe in utilization.

Description

Novel insulin pen

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a novel insulin pen.

Background

The insulin pen is convenient to use, the complicated process of extracting insulin in an insulin medicine bottle by using an injector is avoided, a refill can be replaced after being used up, and the insulin pen is convenient to use and mainly comprises a pen body, a pen cap, a refill frame and a pen needle assembly, wherein the pen needle assembly is used for one time;

the traditional pen needle assembly mainly comprises an outer needle protecting cap, an inner needle protecting cap and a needle seat provided with a needle head, wherein the needle head is packaged in the outer needle protecting cap and the inner needle protecting cap through aseptic disinfection treatment before use, the needle head needs to be used in time after being unsealed, otherwise, the surface of the needle head exposed outside is easily infected by the hands or other objects of a user, and the like;

therefore, in view of the above problems, it is necessary to provide a novel insulin pen with a novel structure, which can safely remove the needle and prevent accidental injury to people.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defect that prior art exists, providing a novel insulin pen novel structure, can get rid of the syringe needle safely, avoid accidental injury personnel, safe in utilization.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model discloses a novel insulin pen, include:

a pen body with a pen cap;

a needle holder provided with a needle, and

a needle cap covering the outside of the needle base;

the pen body with the needle file can plug and draw the connection, the needle file inner wall is formed with the locating hole symmetrically, still include

A button which can radially stretch along the pen body and is used for being clamped with the positioning hole and fixing the needle seat on the pen body, and

the needle releasing device is provided with an elastic driver which applies acting force towards the needle base along the axial direction of the pen body and drives the needle base to be far away from the pen body.

Further, the button is a pressing type telescopic button;

the button is far away from the pen body side and is provided with a bulge which is clamped with or separated from the positioning hole.

Further, the needle releasing device comprises an ejector rod formed on the needle seat and an accommodating groove formed in the pen body and allowing the ejector rod to enter;

the position of the ejector rod corresponds to the position of the positioning hole;

the accommodating groove is positioned at the inlet end of the ejector rod and is of an inverted conical structure;

the elastic driver is installed in the accommodating groove;

the elastic driver is a compression spring;

one end of the compression spring is in contact with the ejector rod, the other end of the compression spring can be in contact with the accommodating groove, and the compression spring extends axially along the pen body to drive the needle seat to be far away from the pen body.

Furthermore, the elastic driver is positioned at the end of the ejector rod and is provided with a stop block in a spherical structure, and the stop block is used for contacting with the ejector rod.

Further, the needle releasing device comprises an ejector rod in contact with the needle base and an accommodating groove which is formed in the pen body and can allow the ejector rod to enter and exit;

the elastic driver is arranged between the accommodating groove and the ejector rod, and the ejector rod is driven by the elastic driver to extend out of the accommodating groove and push the needle seat to be far away from the pen body;

the elastic driver is a compression spring;

Furthermore, a connecting part is formed at the contact end of the ejector rod and the elastic driver and is used for being in sliding connection with the side wall of the accommodating groove.

Further, the needle cap can be detachably and movably connected with the needle seat.

Furthermore, the needle cap comprises an inner needle cap covering the outside of the needle head and an outer needle cap covering the outside of the inner needle cap;

wherein, the needle stand with the inner needle cap, the inner needle cap with the swing joint that outer needle cap all can dismantle.

Further, the needle cap is fixedly connected with the needle seat.

Further, the needle cap comprises an inner needle cap covering the outside of the needle head, an outer needle cap covering the outside of the inner needle cap and fixedly connected with the needle seat, and

the cutting sleeve is connected to the inner part of the outer needle cap in a sliding way and is clamped with the inner needle cap and/or the outer needle cap;

a spring is arranged between the inner needle cap and the needle seat and is used for driving the inner needle cap to be far away from the needle seat so as to cover the needle head in the inner needle cap;

the top end of the inner needle cap is provided with a passage through which the needle head can pass;

the end of the outer needle cap, which is far away from the needle seat, is provided with a through hole through which the inner needle cap and the needle head pass.

In the technical scheme, the utility model provides a novel insulin pen;

has the advantages that:

the utility model discloses an insulin pen includes handwriting and needle file, handwriting and needle file can the plug be connected, through set up the locating hole on the needle file, the handwriting is through button and locating hole block with needle file fixed connection on the handwriting, secondly, the handwriting still is not equipped with the device of taking off the needle, the device of taking off the needle is provided with the elastic drive, in the time of the use, press the button, the button breaks away from the needle file, the elastic drive needle file breaks away from the handwriting, the syringe needle is got rid of to safety, reduce user contact needle seat contact probability, injure the risk that the hand leads to infecting when avoiding the user to pull out the needle file through manual, improve this insulin pen safety in utilization, moreover, the steam generator is simple in structure, high.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is an exploded view of a novel insulin pen disclosed by the present invention;

FIG. 2 is a schematic view of the overall structure of FIG. 1;

FIG. 3 is a schematic structural view of a novel insulin pen needle removal device disclosed by the present invention;

fig. 4 is a schematic structural view of another embodiment of the novel insulin pen needle removal device disclosed by the invention;

fig. 5 is an exploded view of another embodiment of a novel insulin pen disclosed by the present invention;

fig. 6 is a schematic view of the overall structure of fig. 5.

Description of reference numerals:

a pen body 1; a needle seat 2; a needle head 3; a needle cap 4; a button 5; a needle removal device 6;

an inner needle cap 401; an outer needle cap 402; a channel 403; a ferrule 404; a spring 405; a first card slot 406; a second card slot 407;

a projection 501;

a top rod 601; an accommodating groove 602; an elastic driver 603; a stop block 604; a connecting portion 605.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1;

the utility model relates to a novel insulin pen, include:

a pen body 1 with a pen cap;

a needle holder 2 provided with a needle 3, and

a needle cap 4 covering the outside of the needle base 2;

the pen body 1 and the needle base 2 can be connected in a plugging way and also comprise

A button 5 which can be extended and retracted along the radial direction of the pen body 1 and is used for being clamped with the positioning hole and fixing the needle base 2 on the pen body 1, and

the needle releasing device 6 is provided with an elastic driver 603 which applies acting force to the needle base 2 along the axial direction of the pen body 1 and drives the needle base 2 to be far away from the pen body 1.

Specifically, as shown in fig. 1-2, the structure comprises a pen body 1, a needle base 2, a needle head 3, a needle cap 4, a button 5 and a needle releasing device 6;

the pen body 1 is a pen body which is provided with a pen cap and can replace a pen core in the prior art, the insulin pen is convenient to reuse, a needle cap 4 covers the outer part of a needle base 2 fixedly connected with a needle head 3, the pen body 1 is positioned at one end of the pen core and can be inserted with the needle base 2, when the needle base 2 is inserted on the pen body 1, the needle head 3 can penetrate into the pen body 1 and is communicated with the pen core, the bottom wall of the needle base 2 is in sealing contact with the top end of the pen body 1 through a sealing layer, positioning holes are symmetrically formed in two sides of the inner wall of the base 2 and are through holes, the positions of the positioning holes can be conveniently observed from the outer part of the needle base 2, a button 5 is arranged at the end of the pen core of the pen body 1 and is of a telescopic structure, the button 5 is in an extending state when the external force is not applied;

the pen body 1 is further provided with a needle releasing device 6, the needle releasing device 6 is provided with an elastic driver 603, and the elastic driver 603 can apply acting force to the needle seat 2 along the axial direction of the pen body 1 to push the needle seat 2 away from the pen body 1;

when the pen is used, after injection is finished, the end of the needle seat 2 of the pen body 1 is aligned with the containing port of the sharps box, the button 5 is pressed, the button 5 is contracted and separated from the positioning hole to release the needle seat 2, and the needle seat 2 is ejected away from the pen body 1 under the action of the elastic driver 603 and enters the sharps box;

in the structure, the needle base 2 is fixedly connected with the pen body 1 in a clamping manner through the telescopic button 5, when the button 5 is separated from the needle base 2, the elastic driver 603 arranged on the needle separating device 6 drives the needle base 2 to be separated from the pen body 1, so that a needle head is safely removed, the risk of infection caused by hurting hands when a user pulls the needle base 2 manually is avoided, the use safety of the insulin pen is improved, and the structure is simple and convenient to use;

as shown in fig. 3;

preferably, the button 5 is a push type telescopic button;

the button 5 is provided with a protrusion 501 which is engaged with or disengaged from the positioning hole on the side away from the pen body 1.

Specifically, in the structure, the button 5 is a pressing type telescopic button, a bulge 501 is arranged on the contact side of the button 5 and the inner wall of the needle seat, the bulge 501 is clamped or separated with a positioning hole, and the button 5 is in an ejecting state in a free state;

when the pen is used, external force is applied to the button 5, the button 5 is pressed, the button 5 drives the protrusion 501 to be concave in the pen body 1, the protrusion 501 is separated from the positioning hole to release the needle base 2, and the pen is simple to operate and convenient to use;

as shown in fig. 3;

in a preferred embodiment, the needle-removing device 6 comprises a push rod 601 formed on the needle base 2 and a containing groove 602 formed on the pen body 1 and allowing the push rod 601 to enter;

the position of the ejector rod 601 corresponds to the position of the positioning hole;

the accommodating groove 602 is positioned at the inlet end of the ejector rod 601 and is of an inverted conical structure;

the elastic driver 603 is installed in the accommodating groove 602;

the elastic driver 603 is a compression spring;

one end of the compression spring is in contact with the ejector rod 601, the other end of the compression spring can be in contact with the accommodating groove 602, and the compression spring extends along the axial direction of the pen body 1 to drive the needle seat 2 to be far away from the pen body 1.

Specifically, referring to fig. 3, the needle removing device 6 in this embodiment includes a top rod 601, a receiving groove 602, and an elastic driver 603;

the needle base 2 is provided with a mandril 601 along the axial direction of the pen body 1, the end of the pen body 1, which is positioned at the needle base 2, is provided with a containing groove 602 along the axial direction, an elastic driver 603 is arranged in the containing groove 602, the elastic driver 603 is a compression spring, when the needle base 2 is connected with the pen body 1, the mandril 601 extends into the containing groove 602 and compresses the elastic driver 603 to contract, when a bulge 601 of the button 5 is separated from the locating hole, the elastic driver 603 is compressed to extend and drive the needle base 2 to be separated from the pen body 1, the position of the mandril 601 in the structure corresponds to the position of the locating hole, a user can conveniently find the position of the mandril 601 and can quickly connect the needle base 2 with the pen body 1, the use is convenient, the installation time is saved, in addition, the containing groove 602 is positioned at the inlet end of the mandril 601 to be an, the convenience in use is improved;

in addition, referring to fig. 3, in the embodiment, preferably, the elastic driver 603 is provided with a stopper 604 having a spherical structure at the end of the top rod 601 for contacting with the top rod 601.

Specifically, the elastic driver 603 is provided with a stop block 604 at the end of the top rod 601, the stop block 604 is in a spherical structure, the stop block 604 is in small clearance fit with the inner wall of the accommodating groove 602, the structure can stop the elastic driver 603 from separating from the accommodating groove 602 through the stop block 604, and meanwhile, the elastic driver 603 is in transition contact with the top rod 601 through the stop block 604, so that the stable stress of the top rod 601 is facilitated;

as shown in fig. 4;

in another preferred embodiment, the needle-removing device 6 comprises a push rod 601 contacting with the needle seat 2 and a holding groove 602 which is opened on the pen body 1 and can allow the push rod 601 to enter and exit;

an elastic driver 603 is arranged between the accommodating groove 602 and the ejector rod 601, and the ejector rod 601 is driven by the elastic driver 603 to extend out of the accommodating groove 602 and push the needle seat 2 to be far away from the pen body 1;

the elastic driver 603 is a compression spring;

Specifically, referring to fig. 4, the needle removing device 6 in this embodiment includes a top rod 601, a receiving groove 602, and an elastic driver 603;

a containing groove 602 is axially formed at the end of the pen body 1 located on the needle seat 2, a push rod 601 and an elastic driver 603 are installed in the containing groove 602, preferably, a connecting part 605 is formed at the contact end of the push rod 601 and the elastic driver 603 for sliding connection with the side wall of the containing groove 602, the push rod 601 is in contact with the elastic driver 603 through the connecting part 605, the connecting part 605 is in sliding connection with the containing groove 602, and the end of the push rod 601 far away from the connecting part 605 can extend out of the containing groove 602 under the action of the elastic driver 603; the structure prevents the ejector rod 601 from separating from the accommodating groove 602 through the connecting part 605 fixedly connected to the tail end of the ejector rod 601, and meanwhile, the connecting part 605 is in sliding connection with the accommodating groove 602 to ensure that the needle base 2 is separated from the pen body 1 in a direction parallel to the axis of the pen body 1, so that the needle base 2 is ensured to be stressed uniformly and quickly separated;

referring to fig. 4, when in use, when the needle holder 2 is inserted into the pen body 1, the bottom wall of the needle holder 2 pushes the ejector rod 601 to compress the elastic driver 603 for contraction, and when the protrusion 501 of the button 5 releases the needle holder 2, the elastic driver 603 extends to drive the needle holder 2 to separate from the pen body 1, so that the structure is simple and the use is convenient;

as shown in fig. 1;

in another preferred embodiment, the needle cap 4 is removably attachable to the needle hub 2.

Specifically, the needle cap 4 is detachably and movably connected with the needle base 2, the needle cap 4 can be any one of the needle caps 4 capable of covering the needle head 3 in the prior art, the universality of the needle cap 4 is ensured, the manufacturing cost is reduced, and preferably, the needle cap 4 comprises an inner needle cap 401 covering the outside of the needle head 3 and an outer needle cap 402 covering the outside of the inner needle cap 401; wherein, the needle stand 2 and the inner needle cap 401, the inner needle cap 401 and the outer needle cap 402 can be detachably and movably connected.

See fig. 5, 6;

in another preferred embodiment, the needle cap 4 is fixedly connected with the needle hub 2.

Preferably, the needle cap 4 comprises an inner needle cap 401 covering the outside of the needle 3 and an outer needle cap 402 covering the outside of the inner needle cap 401 and fixedly connected with the needle holder 2, and

a cutting sleeve 404 which is connected in a sliding way inside the outer needle cap 402 and is clamped with the inner needle cap 401 and/or the outer needle cap 402;

a spring 405 is arranged between the inner needle cap 401 and the needle stand 2 and is used for driving the inner needle cap 401 to be far away from the needle stand 2 so as to cover the needle head 3 in the inner needle cap 401;

the top end of the inner needle cap 401 is provided with a channel 403 through which the needle head 3 can pass;

the end of the outer needle cap 402 far away from the needle base 2 is provided with a through hole through which the inner needle cap 401 and the needle head 3 pass.

Specifically, the needle cap 4 in the structure comprises an inner needle cap 401, an outer needle cap 402, a clamping sleeve 404 and a spring 405;

referring to fig. 5, an inner needle cap 401 and a ferrule 404 are sequentially arranged inside an outer needle cap 402, a spring 405 is arranged between the inner needle cap 401 and the ferrule 404, and the spring 405 is a compression spring;

the inner needle cap 401 covers the outside of the needle 3, a channel 403 through which the needle 3 can extend is arranged at the end of the inner needle cap 401 away from the needle base 2, and a flange is formed at the end of the inner needle cap 401 located on the needle base 2;

a first clamping groove 406 capable of being clamped with the flange plate of the inner needle cap 401 is arranged on the inner wall of the clamping sleeve 404;

one end of the outer needle cap 402 is fixedly connected with the needle base 2, the other end of the outer needle cap is provided with a through hole, the inner needle cap 401 can be exposed outside the outer needle cap 402 through the through hole, a second clamping groove 407 is distributed at the end, located at the through hole, of the outer needle cap 402, and the outer needle cap 402 is clamped with the clamping sleeve 404 through the second clamping groove 407 to fix the inner needle cap 401 on the outer needle cap 402;

when the pen is used, as shown in fig. 6, when the needle holder 2 is connected with the pen body 1, the needle 3 of the needle holder 2 extends into the pen body 1 to be communicated with the pen core and is aligned with the skin of a patient, the needle 3 penetrates through the channel 403 of the inner needle cap 401 to penetrate into the skin, the skin pushes the inner needle cap 401 to contract, the flange of the inner needle cap 401 is clamped with the first clamping groove 406, as shown in fig. 5, after injection is finished, the needle is pulled out, the spring drives the inner needle cap 401 to drive the clamping sleeve 404 to be away from the needle holder 2 to cover the needle 3 in the inner needle cap 401 and the outer needle cap 402, the clamping sleeve 404 slides to the position of the second clamping groove 407, and the second clamping groove 407 of the clamping sleeve 404 is clamped to fixedly connect;

through

needle cap

4 and 2 fixed connection of needle file in this structure, saved 3 take off 4 operating steps of needle cap of syringe needle, further reduce the step that the user contacted syringe needle 3, and then reduce the probability of stabbing the hand when handling the syringe needle, improve this insulin pen safety in utilization.

In the technical scheme, the utility model provides a novel insulin pen;

has the advantages that:

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A novel insulin pen comprising:

a pen body (1) with a pen cap;

a needle holder (2) provided with a needle (3), and

a needle cap (4) covering the outside of the needle base (2), which is characterized in that;

the pen body (1) and the needle base (2) can be connected in a plugging and unplugging manner, positioning holes are symmetrically formed in the inner wall of the needle base (2), and the pen further comprises

A button (5) which can radially stretch along the pen body (1), is used for being clamped with the positioning hole and fixing the needle seat (2) on the pen body (1), and

the needle releasing device (6) is provided with an elastic driver (603) which applies acting force to the needle base (2) along the axial direction of the pen body (1) and drives the needle base (2) to be far away from the pen body (1).

2. The novel insulin pen of claim 1, wherein;

the button (5) is a pressing type telescopic button;

and a bulge (501) which is clamped or separated with the positioning hole is formed on the side of the button (5) far away from the pen body (1).

3. The novel insulin pen of claim 1, wherein;

the needle removing device (6) comprises a push rod (601) formed on the needle seat (2) and an accommodating groove (602) formed in the pen body (1) and allowing the push rod (601) to enter;

the position of the ejector rod (601) corresponds to the position of the positioning hole;

the accommodating groove (602) is positioned at the inlet end of the ejector rod (601) and is of an inverted conical structure;

the elastic driver (603) is installed in the accommodating groove (602);

the elastic driver (603) is a compression spring;

one end of the compression spring is in contact with the ejector rod (601), the other end of the compression spring can be in contact with the accommodating groove (602), and the compression spring extends and drives the needle seat (2) to be far away from the pen body (1) along the axial direction of the pen body (1).

4. The novel insulin pen of claim 3, wherein;

the elastic driver (603) is provided with a stop block (604) in a spherical structure at the end of the ejector rod (601) and is used for contacting with the ejector rod (601).

5. The novel insulin pen of claim 1, wherein;

the needle removing device (6) comprises a push rod (601) contacted with the needle seat (2) and a containing groove (602) which is arranged on the pen body (1) and can allow the push rod (601) to enter and exit;

the elastic driver (603) is arranged between the accommodating groove (602) and the ejector rod (601), and the ejector rod (601) is driven by the elastic driver (603) to extend out of the accommodating groove (602) and push the needle seat (2) to be far away from the pen body (1);

the elastic driver (603) is a compression spring;

6. The novel insulin pen of claim 5, wherein;

the contact end of the ejector rod (601) and the elastic driver (603) is provided with a connecting part (605) which is used for being in sliding connection with the side wall of the accommodating groove (602).

7. A novel insulin pen according to any one of claims 1 to 6, characterized in that;

the needle cap (4) can be detachably and movably connected with the needle seat (2).

8. The novel insulin pen of claim 7, wherein;

the needle cap (4) comprises an inner needle cap (401) covering the outside of the needle head (3) and an outer needle cap (402) covering the outside of the inner needle cap (401);

the needle seat (2) and the inner needle cap (401) and the outer needle cap (402) are movably connected in a detachable mode.

9. A novel insulin pen according to any one of claims 1 to 6, characterized in that;

the needle cap (4) is fixedly connected with the needle stand (2).

10. The novel insulin pen of claim 9, wherein;

the needle cap (4) comprises an inner needle cap (401) covering the outside of the needle head (3) and an outer needle cap (402) covering the outside of the inner needle cap (401) and fixedly connected with the needle seat (2), and

a cutting sleeve (404) which is connected inside the outer needle cap (402) in a sliding way and is clamped with the inner needle cap (401) and/or the outer needle cap (402);

a spring (405) is arranged between the inner needle cap (401) and the needle seat (2) and used for driving the inner needle cap (401) to be far away from the needle seat (2) to cover the needle head (3) in the inner needle cap (401);

the top end of the inner needle cap (401) is provided with a channel (403) through which the needle (3) can pass;

the end, far away from the needle seat (2), of the outer needle cap (402) is provided with a through hole through which the inner needle cap (401) and the needle head (3) pass.