CN213554464U

CN213554464U - Insulin pen

Info

Publication number: CN213554464U
Application number: CN202021193199.1U
Authority: CN
Inventors: 程昌琴
Original assignee: Yongchuan Hospital of Chongqing Medical University
Current assignee: Yongchuan Hospital of Chongqing Medical University
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-06-29
Anticipated expiration: 2030-06-24

Abstract

The utility model belongs to the technical field of medical instrument, concretely relates to insulin pen, including shell, dosage adjust knob, refill frame, connector and pen cap, refill frame demountable installation is on the shell, install the insulin refill in the refill frame, insulin refill lower extreme is equipped with the block rubber, the annular groove has been seted up on the pen cap, movable mounting has the movable sleeve on the pen cap, the internal diameter size of movable sleeve and the external diameter size phase-match of refill frame, the length size of movable sleeve is greater than the length size of connector. The purpose is as follows: the problem of the syringe needle waste is caused to the syringe needle upper end easy bending when the syringe needle that current insulin pen structural defect leads to is installed.

Description

Insulin pen

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to insulin pen.

Background

Insulin injection is required every day for more serious diabetics, and an insulin pen is a common tool for injecting insulin. When the patient is injecting, the insulin refill filled with insulin is filled into the insulin pen, after the patient pierces the insulin needle into the skin, the insulin pen is pressed, and the insulin can be injected into the body.

Before the insulin is injected by a patient with a urine disease using an insulin pen at every time, a needle matched with the insulin pen needs to be installed on the insulin pen for injection, the needle is a disposable product and generally consists of a needle point 401 and a connecting sleeve 402, and in order to ensure that the needle is not polluted, the needle is usually protected by an outer needle cap 41, an inner needle cap 42 and a protective sheet.

When the syringe needle is installed, tear the protection sheet, insert the connector 13 of the insulin pen of having installed the insulin refill in the adapter sleeve 402 for on the upper end of needle point 401 inserts the rubber block 14 of insulin refill, outwards extract the insulin pen again, through the interconnect of connector 13 with adapter sleeve 402, pull out the syringe needle from outer syringe needle cap 41, take off interior syringe needle cap 42 from the syringe needle again, at this moment, can carry out the insulin injection through the insulin pen.

However, since the needle point 401 has a small diameter, when the connector 13 of the insulin pen with the insulin pen refill is inserted into the connecting sleeve 402, and the upper end of the needle point 401 is inserted into the rubber block 14 of the insulin pen refill, once the insertion angle of the insulin pen does not completely coincide with the needle point 401, the upper end of the needle point 401 is easily bent, and the rubber block 14 cannot be smoothly and completely punctured by the upper end of the needle point 401.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aims to provide an insulin pen for solving the problem that when a needle head caused by the structural defects of the existing insulin pen is installed, the upper end of the needle head is easy to bend, thereby causing the waste of the needle head.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

the utility model provides an insulin pen, includes shell, dosage adjust knob, refill frame, connector and cap for a brush, refill frame demountable installation is on the shell, install the insulin refill in the refill frame, insulin refill lower extreme is equipped with the block rubber, the annular groove has been seted up on the cap for a brush, movable mounting has the movable sleeve on the cap for a brush, the internal diameter size of movable sleeve and the external diameter size phase-match of refill frame, the length size of movable sleeve is greater than the length size of connector.

Further, the movable sleeve is hinged on the pen cap. By the structural design, when the insulin pen is not used, the movable sleeve can be rotated to be coaxial with the pen cap, the pen refill holder is arranged in the movable sleeve and the pen cap in a penetrating mode, the movable sleeve is used as one part of the pen cap, the movable sleeve does not occupy other spaces, and the insulin pen is convenient to carry.

Further inject, cap for brush upper end outer wall integrated into one piece has first lug, threaded blind hole has been seted up on the first lug, the movable sleeve outer wall integrated into one piece has the second lug, the via hole has been seted up on the second lug, wear to be equipped with connecting bolt in the via hole, connecting bolt and threaded blind hole spiro union. According to the structural design, the pen cap is hinged with the movable sleeve through the connecting bolt arranged on the first convex block and the second convex block, so that the pen cap is hinged with the movable sleeve, and the pen cap is simple in structure and convenient to install.

Further limiting, a threaded through hole is formed in the second protruding block, a ball plunger is screwed in the threaded through hole, a first hemispherical groove is formed in the first protruding block, and the ball head portion of the ball plunger is located in the first hemispherical groove. Due to the structural design, when the movable sleeve is rotated to be coaxial with the pen cap, a clear hand feeling can be provided for a user through the mutual matching of the ball plunger and the first hemispherical groove, and the user is reminded of rotating in place; meanwhile, the movable sleeve can be fixed at the position through the mutual matching of the ball plunger and the first hemispherical groove, so that the insertion of the connector is facilitated.

Further, the first bump is provided with a second hemispherical groove. Due to the structural design, when the pen cap and the movable sleeve are completely staggered, the ball head part of the ball plunger is clamped in the second hemispherical groove, and at the moment, the movable sleeve can be fixed at the position through mutual matching of the ball plunger and the second hemispherical groove, so that the influence of the movable sleeve on the installation and installation process is avoided when the outer needle cap with the needle head arranged in the pen cap is installed.

Further limit, the lower end of the pen cap is fixedly provided with a pen clip. By the structural design, the insulin pen can be clamped in the pocket through the pen clamp, and is convenient to carry.

Adopt above-mentioned technical scheme's utility model, have following advantage:

1. the movable sleeve is matched with the pen refill holder, the pen refill holder is pressed downwards to play a guiding role, and the annular groove in the pen cap and the flanging of the outer needle cap are matched for positioning, so that the problems that the insertion angle of the insulin pen is not completely overlapped with the needle point, the upper end of the needle point is bent, and further the needle head is wasted are solved;

2. the connecting bolt who installs on pen cap and the movable sleeve through first lug and the second lug is articulated, when insulin pen does not use, can rotate the movable sleeve to coaxial with the pen cap, wears to establish in movable sleeve and pen cap the refill frame again, uses the movable sleeve as partly of pen cap, and the movable sleeve does not occupy all the other spaces, convenient to carry.

3. Through the mutual matching of the ball plunger and the first hemispherical groove, a clear hand feeling can be provided for a user when the movable sleeve is rotated, and the user is reminded that the movable sleeve is rotated in place; meanwhile, the movable sleeve can be fixed at the position through the mutual matching of the ball plunger and the first hemispherical groove, so that the insertion of the connector is facilitated.

4. Through the mutual matching of the ball plunger and the second hemispherical groove, when the pen cap and the movable sleeve are completely staggered, the ball head part of the ball plunger is clamped in the second hemispherical groove, at the moment, the movable sleeve can be fixed at the position through the mutual matching of the ball plunger and the second hemispherical groove, and the influence of the movable sleeve on the installation and installation process is avoided when the outer needle cap with the needle head is arranged in the pen cap.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a schematic structural diagram of a carrying state of an embodiment of an insulin pen according to the present invention;

FIG. 2 is a schematic structural view of an insulin pen according to an embodiment of the present invention in a use state;

fig. 3 is a schematic view of a partial cross-sectional structure of an insulin pen in an operating state according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic structural view of the housing, the cartridge holder and the connector of an embodiment of the insulin pen of the present invention;

fig. 6 is a schematic structural view of a pen cap and a movable sleeve part in an embodiment of the insulin pen of the present invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 6;

the main element symbols are as follows:

a shell 1, a dosage adjusting knob 11, a pen refill holder 12, a connector 13, a rubber block 14,

A pen cap 2, an annular groove 21,

A movable sleeve 3, a pen clip 31,

A needle tip 401, a connecting sleeve 402, an outer needle cap 41, a flanging 411, an inner needle cap 42,

A first bump 51, a threaded blind hole 510,

The second bump 52, the via hole 520, the through screw hole 521, the first hemispherical groove 511, and the second hemispherical groove 512.

Detailed Description

The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 7, the insulin pen of this embodiment includes a housing 1, a dose adjustment knob 11, a pen core holder 12, a connector 13 and a pen cap 2, wherein the pen core holder 12 is detachably mounted on the housing 1, an insulin pen core is mounted in the pen core holder 12, a rubber block 14 is disposed at the lower end of the insulin pen core, an annular groove 21 is formed in the pen cap 2, a movable sleeve 3 is movably mounted on the pen cap 2, the inner diameter of the movable sleeve 3 is matched with the outer diameter of the pen core holder 12, and the length of the movable sleeve 3 is greater than the length of the connector 13.

The movable sleeve 3 is hinged on the pen cap 2. When the insulin pen is not used, the movable sleeve 3 can be rotated to be coaxial with the pen cap 2, the pen refill holder 12 is arranged in the movable sleeve 3 and the pen cap 2 in a penetrating mode, the movable sleeve 3 is used as one part of the pen cap 2, the movable sleeve 3 does not occupy other spaces, and the insulin pen is convenient to carry.

The outer wall integrated into one piece of cap for brush 2 upper end has first lug 51, has seted up screw thread blind hole 510 on the

first lug

51, and 3 outer wall integrated into one piece of movable sleeve have second lug 52, have seted up via hole 520 on the second lug 52, wear to be equipped with connecting bolt in the via hole 520, connecting bolt and screw thread blind hole 510 spiro union. The pen cap 2 is hinged with the movable sleeve 3 through the connecting bolts arranged on the first convex block 51 and the second convex block 52, so that the pen cap 2 is hinged with the movable sleeve 3, and the pen cap is simple in structure and convenient to install.

The second protrusion 52 is provided with a threaded through hole 521, a ball plunger is screwed in the threaded through hole 521, the first protrusion 51 is provided with a first hemispherical groove 511, and the ball head part of the ball plunger is located in the first hemispherical groove 511. When the movable sleeve 3 is rotated to be coaxial with the pen cap 2, a clear hand feeling can be provided for a user through the mutual matching of the ball plunger and the first hemispherical groove 511, and the user is reminded of rotating in place; meanwhile, the movable sleeve 3 can be fixed at the position through the mutual matching of the ball plunger and the first hemispherical groove 511, so that the insertion of the connector 13 is facilitated.

The first bump 51 is provided with a second hemispherical groove 512. When the pen cap 2 and the movable sleeve 3 are completely staggered, the ball head part of the ball plunger is clamped in the second hemispherical groove 512, at the moment, the movable sleeve 3 can be fixed at the position through mutual matching of the ball plunger and the second hemispherical groove 512, and the influence of the movable sleeve 3 on the installation and installation process is avoided when the outer needle cap 41 with a needle head is arranged in the pen cap 2.

The lower end of the pen cap 2 is fixedly provided with a pen clip 31. The insulin pen can be clamped in the pocket through the pen clamp 31, and is convenient to carry.

In this embodiment, in use, the cap 2 is removed, and the movable sleeve 3 is rotated, so that the ball head portion of the ball plunger enters the second hemispherical groove 512 from the first hemispherical groove 511, and at this time, the annular groove 21 at the upper end of the cap 2 is exposed;

then the protective sheet on the outer needle cap 41 is torn off, the outer needle cap 41 with the needle inside is placed into the pen cap 2, so that the flanging 411 of the outer needle cap 41 is placed in the annular groove 21 (the outer diameter of the flanging 411 is matched with the inner diameter of the annular groove 21), then the movable sleeve 3 is rotated, so that the ball head part of the ball head plunger enters the first hemispherical groove 511 again from the second hemispherical groove 512, at the moment, the movable sleeve 3 is coaxial with the pen cap 2,

then, the insulin pen with the insulin pen refill is inserted into the movable sleeve 3 until the connecting head 13 enters the connecting sleeve 402, the connecting sleeve is pressed downwards continuously, the upper end of the needle point 401 punctures the rubber block 14, at the moment, the insulin pen is pulled out, the connecting sleeve 402 is pulled out from the outer needle cap 41 and the pen cap 2, and then the inner needle cap 42 is taken down from the needle point 401, so that insulin injection can be carried out.

The insulin pen provided by the utility model is introduced in detail. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides an insulin pen, includes shell (1), dose knob (11), refill frame (12), connector (13) and pen cap (2), refill frame (12) demountable installation is on shell (1), install the insulin refill in refill frame (12), insulin refill lower extreme is equipped with rubber block (14), its characterized in that: the pen cap is characterized in that an annular groove (21) is formed in the pen cap (2), a movable sleeve (3) is movably mounted on the pen cap (2), the inner diameter of the movable sleeve (3) is matched with the outer diameter of the refill holder (12), and the length of the movable sleeve (3) is larger than that of the connector (13).

2. An insulin pen according to claim 1, characterized in that: the movable sleeve (3) is hinged on the pen cap (2).

3. An insulin pen according to claim 2, characterized in that: pen cap (2) upper end outer wall integrated into one piece has first lug (51), threaded blind hole (510) has been seted up on first lug (51), movable sleeve (3) outer wall integrated into one piece has second lug (52), via hole (520) have been seted up on second lug (52), wear to be equipped with connecting bolt in via hole (520), connecting bolt and threaded blind hole (510) spiro union.

4. An insulin pen according to claim 3, characterized in that: the second bump (52) is provided with a threaded through hole (521), the threaded through hole (521) is screwed with the ball plunger, the first bump (51) is provided with a first hemispherical groove (511), and the ball head part of the ball plunger is positioned in the first hemispherical groove (511).

5. An insulin pen according to claim 3, characterized in that: the first bump (51) is provided with a second hemispherical groove (512).

6. An insulin pen according to claim 1, characterized in that: the lower end of the pen cap (2) is fixedly provided with a pen clip (31).