CN219148559U

CN219148559U - Drug delivery device

Info

Publication number: CN219148559U
Application number: CN202223400255.6U
Authority: CN
Inventors: 李萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-09
Anticipated expiration: 2032-12-19

Abstract

The utility model belongs to the technical field of infants, and particularly relates to a drug delivery device, which comprises a tube body, wherein a pushing plate is connected inside the tube body in a sliding way, a pushing rod is fixed at the front end of the pushing plate, a pushing piece is fixed at the front end of the pushing rod, a conical tube head is fixed at the tail end of the tube body, the conical tube head is communicated with the inside of the tube body, a fixing plate is fixed inside the tube body, a fixing ring is fixed inside the tube body below the fixing plate, and a moving rod penetrates through the top end of the fixing plate; according to the utility model, the drug delivery device is used by matching the fixed plate, the movable rod, the fixed plate, the movable plate, the spring and the fixed ring, so that the position of the inside of the tube body close to the bottom end is closed, a user can inject the liquid medicine into the inside of the tube body, and the device can avoid the limitation that the liquid medicine is easy to leak out from the outlet of the conical tube head when in use.

Description

Drug delivery device

Technical Field

The utility model belongs to the technical field of infants, and particularly relates to a drug delivery device.

Background

At present, a common drug delivery device mainly comprises a piston, a core rod, a tube body and a drug delivery tube, wherein the drug delivery tube is inserted into a drug delivery position when a patient is delivered, and the piston is pushed to inject drugs;

in the prior art, a plurality of drug delivery devices are provided, for example, chinese patent application No. 201320047531.7 discloses a novel drug delivery device which comprises a cylinder body, a push-pull rod and a piston, wherein the piston is arranged in the cylinder body in a matched manner, a push rod is arranged at the central position of the front end of the piston, and the central position of the rear end of the piston is connected with the push-pull rod; a shield is arranged on the outer side surface of the cylinder; the front end of the cylinder body is provided with a circular tube communicated with the inner cavity of the cylinder body, and the inner diameter of the circular tube is larger than the diameter of the push rod; the drug delivery pipe is inserted on the circular pipe, the shape of the drug delivery pipe is conical with the upper part thick and the lower part thin, and the inner diameter of the drug delivery pipe is larger than the diameter of the push rod; the nipple is in threaded connection with the outer side surface of the cylinder body through a gland; the outer side surface of the cylinder body is provided with scale values. The utility model is applicable to solid medicines and liquid medicines, can conveniently feed medicines for infants, can accurately measure the medicines without spilling, and has simple operation and humanization;

however, when the device is used for feeding liquid medicine to infants, when the liquid medicine is put into the barrel, the front end of the barrel is provided with the circular tube communicated with the inner cavity of the barrel, so that the liquid medicine just put into the barrel can leak out from the outlet of the circular tube, and the device has certain limitation when in use.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a drug delivery device which has the characteristic of preventing the liquid medicine from leaking.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a device of dosing, includes the body, the inside of body has the push plate through sliding connection, the front end of push plate is fixed with the catch bar, the front end of catch bar is fixed with the catch bar, the tail end of body is fixed with the toper tube head, toper tube head and the inside UNICOM of body, the inside of body is fixed with the fixed plate, the inside of body is located the below of fixed plate and is fixed with solid fixed ring, the top of fixed plate runs through there is the movable rod, the top of movable rod is fixed with the stationary blade, the bottom of stationary blade is fixed with the movable plate, the outer wall of movable rod still overlaps and is equipped with the spring.

As a preferred embodiment of the present utility model, the distance between the fixing plate and the fixing ring is greater than the height of the moving plate.

As a preferable technical scheme of the utility model, the diameter of the pushing plate is consistent with the inner diameter of the pipe body.

As a preferable technical scheme of the utility model, the top end of the fixing ring is provided with an inclined plane notch.

As a preferable technical scheme of the utility model, the outer wall of the pipe body is provided with two symmetrically distributed pressing plates.

As a preferable technical scheme of the utility model, the outer walls of the pressing plate and the pushing piece are both glued with rubber sleeves.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the drug delivery device is used by matching the fixed plate, the movable rod, the fixed plate, the movable plate, the spring and the fixed ring, so that the position of the inside of the tube body close to the bottom end is closed, a user can inject the liquid medicine into the inside of the tube body, and the device can avoid the limitation that the liquid medicine is easy to leak out from the outlet of the conical tube head when in use.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a pipe body according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure A in the present utility model;

in the figure: 1. a tube body; 2. a pushing plate; 3. a push rod; 4. a pushing piece; 5. a conical tube head; 6. pressing the plate; 7. a fixing plate; 8. a moving rod; 9. a fixing piece; 10. a moving plate; 11. a spring; 12. a fixing ring; 13. bevel notch; 14. a rubber sleeve.

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. 1-3, the present utility model provides the following technical solutions: in the embodiment, the drug delivery device comprises a tube body 1, wherein a pushing plate 2 is connected inside the tube body 1 in a sliding way, a pushing rod 3 is fixed at the front end of the pushing plate 2, a pushing plate 4 is fixed at the front end of the pushing rod 3, a conical tube head 5 is fixed at the tail end of the tube body 1, the conical tube head 5 is communicated with the inside of the tube body 1, a fixing plate 7 is fixed inside the tube body 1, a fixing ring 12 is fixed below the fixing plate 7 inside the tube body 1, a moving rod 8 penetrates through the top end of the fixing plate 7, a fixing plate 9 is fixed at the top end of the moving rod 8, a moving plate 10 is fixed at the bottom end of the fixing plate 9, and a spring 11 is sleeved on the outer wall of the moving rod 8; when the device is used, when the spring 11 is in the initial position, the head end can prop against the fixing plate 9, the tail end can prop against the fixing plate 7, so that the movable plate 10 is tightly attached to the inner diameter of the fixing ring 12, the position, close to the tail end, of the inside of the tube body 1 is closed, and then the liquid medicine is injected from the top end of the tube body 1, and when the liquid medicine is injected into the inside of the tube body 1 from the top end of the tube body 1, the liquid medicine stays on the top surface of the movable plate 10 and cannot move continuously, at the moment, the push rod 3 is inserted into the inside of the tube body 1, the push plate 4 is pressed again, so that the push plate 2 presses the fixing plate 9 downwards, the movable plate 10 can be opened for medicine feeding, and the device can avoid the liquid medicine which is just injected into the inside of the tube body 1 from leaking from the outlet of the cone-shaped tube head 5 when the device is used, so that the liquid medicine is easy to leak from the outlet of the cone-shaped tube head 5.

Specifically, as can be seen from fig. 2, in this embodiment, the distance between the fixing plate 7 and the fixing ring 12 is greater than the height of the moving plate 10; when the pushing plate 2 is to be pulled out of the inside of the pipe body 1, the pushing plate 2 and the moving plate 10 are in a vacuum state, so that the moving plate 10 is driven to move upwards when the pushing plate 2 is to be pulled out of the inside of the pipe body 1, the pushing plate 2 and the moving plate 10 are prevented from being in a vacuum state, and the pushing plate 2 is convenient to pull out of the inside of the pipe body 1 when in use.

Specifically, as can be seen from fig. 2, in this embodiment, the diameter of the pushing plate 2 is identical to the inner diameter of the tube 1; can make the inside diameter of push plate 2 and body 1 closely laminate, prevent when promoting the liquid medicine, the liquid medicine overflows from the outer wall of push plate 2, and during the use, it is comparatively convenient.

Specifically, as can be seen from fig. 3, in this embodiment, the top end of the fixing ring 12 is provided with an inclined slot 13; can avoid the medicine liquid from accumulating on the top end of the fixed ring 12, so that the medicine liquid is convenient to convey and is more convenient to use.

Specifically, as can be seen from fig. 1, in this embodiment, two symmetrically distributed pressing plates 6 are arranged on the outer wall of the tube body 1; when in use, two fingers of a user can drag the pressing plate 6 and then press the pushing piece 4, so that the use is more convenient.

Specifically, as can be seen from fig. 1, in this embodiment, rubber sleeves 14 are glued to the outer walls of the pressing plate 6 and the pushing plate 4; the rubber sleeve 14 can reduce friction between the finger of a user and the outer wall of the pushing piece 4 by the pressing plate 6; when in use, the utility model is more convenient.

The working principle and the using flow of the utility model are as follows: in the drug delivery device, firstly, the pushing plate 2 is pulled out of the inside of the tube body 1, then the liquid medicine is injected from the top end of the tube body 1, and because the position of the inside of the tube body 1 close to the tail end is already closed, when the liquid medicine is injected into the inside of the tube body 1 from the top end of the tube body 1, the liquid medicine stays on the top surface of the movable plate 10 and cannot move continuously, at the moment, the pushing rod 3 is inserted into the inside of the tube body 1, and then the pushing plate 4 is pressed, so that the pushing plate 2 presses the fixing plate 9 downwards, the movable plate 10 can be opened for drug delivery, and the limitation that the liquid medicine is easy to leak from the outlet of the conical tube head 5 can be avoided when the device is used.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A drug delivery device comprising a tube (1), characterized in that: the inside of body (1) is through sliding connection has push plate (2), the front end of push plate (2) is fixed with catch bar (3), the front end of catch bar (3) is fixed with push plate (4), the tail end of body (1) is fixed with toper tube head (5), toper tube head (5) and the inside UNICOM of body (1), the inside of body (1) is fixed with fixed plate (7), the inside of body (1) is located the below of fixed plate (7) and is fixed with solid fixed ring (12), movable rod (8) have been run through on the top of fixed plate (7), the top of movable rod (8) is fixed with stationary blade (9), the bottom of stationary blade (9) is fixed with movable blade (10), the outer wall of movable rod (8) still overlaps and is equipped with spring (11).

2. A drug delivery device according to claim 1, wherein: the distance between the fixing plate (7) and the fixing ring (12) is higher than the height of the moving sheet (10).

3. A drug delivery device according to claim 1, wherein: the diameter of the pushing plate (2) is consistent with the inner diameter of the pipe body (1).

4. A drug delivery device according to claim 1, wherein: an inclined plane notch (13) is formed in the top end of the fixing ring (12).

5. A drug delivery device according to claim 1, wherein: the outer wall of the pipe body (1) is provided with two symmetrically distributed pressing plates (6).

6. A drug delivery device according to claim 5, wherein: the outer walls of the pressing plate (6) and the pushing piece (4) are glued with rubber sleeves (14).