CN220175842U

CN220175842U - Adjustable medicine feeder

Info

Publication number: CN220175842U
Application number: CN202320331430.6U
Authority: CN
Inventors: 熊凡雨
Original assignee: Fifth Medical Center of PLA General Hospital
Current assignee: Fifth Medical Center of PLA General Hospital
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-12-15
Anticipated expiration: 2033-02-28

Abstract

The utility model discloses an adjustable drug delivery device, which relates to the technical field of drug delivery devices and comprises a body structure and a drug delivery structure: the body structure comprises a pipe body, one end of the pipe body is arc-shaped, a liquid outlet is formed in the middle of the end, a piston is arranged in the pipe body, the tail of the piston is connected with a thin rod which is horizontal and penetrates through the tail of the pipe body, a push plate is arranged at the tail of the thin rod, and the push plate can be taken down; the administration structure comprises a screw rod formed by arranging threads on the peripheral side of a thin rod, wherein the screw rod is in threaded penetrating connection with the tail part of the tube body, and one end of the screw rod, which is far away from the push plate, is connected with the piston through a bearing. According to the utility model, the screw is formed by arranging the screw thread on the outer periphery of the thin rod, the screw is in threaded connection with the tail of the pipe body, and the head of the screw is connected with the piston through the bearing, so that the screw can be rotated to push the piston to move for discharging liquid, the distance of the piston to move is fixed every round of rotation of the screw, the liquid discharge amount is also fixed, and the liquid discharge amount can be better controlled.

Description

Adjustable medicine feeder

Technical Field

The utility model relates to the technical field of drug delivery devices, in particular to an adjustable drug delivery device.

Background

The drug delivery device can be connected with the needle tube of the needle head for drug delivery, can also extend into the cavity of a human body for drug delivery, and is applied to gynaecology and obstetrics patients, oral cavity patients and the like.

The drug delivery device is generally similar to a needle tube structure, the front end of the drug delivery device is not provided with a needle head, and the drug delivery device is of an arc-shaped structure and is convenient to insert into a body for drug delivery. For example, in chinese patent publication No. CN214807798U, a self-lubricating channel drug delivery device is proposed, which uses a push handle to push a piston to deliver drug, and even if some drug delivery devices are provided with scales, the push handle is controlled by a human hand, so that the amount of drug delivered each time cannot be controlled well.

Disclosure of Invention

The technical problems to be solved are as follows: the amount of each dose administered by the dispenser is not well controlled.

The technical scheme is as follows: an adjustable applicator comprising a body structure and an administration structure: the body structure comprises a pipe body, one end of the pipe body is arc-shaped, a liquid outlet is formed in the middle of the end, a piston is arranged in the pipe body, the tail of the piston is connected with a thin rod which is horizontal and penetrates through the tail of the pipe body, a push plate is arranged at the tail of the thin rod, and the push plate can be taken down; the structure of dosing includes the screw rod that the screw thread formed is offered to slender rod periphery side, and the afterbody screw thread through connection of screw rod and body, and its one end that keeps away from the push pedal passes through the bearing and is connected with the piston, so, rotatable screw rod promotes the piston to remove and goes out liquid, and the screw rod every round, the distance that the piston moved is fixed, and the play liquid measure is also fixed, so, what of the control liquid measure that can be better.

Further, the bearing is positioned in the piston, the outer ring of the bearing is fixed with the piston, and the inner ring of the bearing is in interference fit with the screw rod, so that the piston cannot rotate together when the screw rod rotates, namely the movement of the piston cannot be influenced.

Further, the reason that the push plate can be removed is that the stud is arranged on the inner side of the push plate, and the outer end of the thin rod is provided with a screw hole matched with the stud, so that the thin rod is connected with the push plate through the stud and the screw hole in a screwing mode.

Further, the afterbody opening of body, the opening part sets up a set of lid, and the internal thread is seted up to the inboard of cover, and the external screw thread with internal screw thread looks adaptation is seted up to the afterbody periphery side of body for body and cover are the screw thread and screw rod and cover screw thread through connection, under the prerequisite that the push pedal is removable, the cover also is removable, so, can be convenient wash the inside of body.

Further, the head of the piston is arc-shaped to fit the head of the tube so that it can fit the arc-shaped inner wall of the tube.

Further, the periphery side of the tube body is fixedly sleeved with a silica gel ring, the back surface of the silica gel ring is attached to the front surface of the sleeve cover, and the outer diameter of the silica gel ring is larger than the diameter of the sleeve cover, so that when the tube body stretches into a cavity of a patient, the silica gel ring can block the cavity opening of the patient from contacting the sleeve cover, and discomfort of the patient caused by the sleeve cover is prevented.

The technical effects are as follows: according to the utility model, the screw is formed by arranging the screw thread on the outer periphery of the thin rod, the screw is in threaded connection with the tail of the pipe body, and the head of the screw is connected with the piston through the bearing, so that the screw can be rotated to push the piston to move for discharging liquid, the distance of the piston to move is fixed every round of rotation of the screw, the liquid discharge amount is also fixed, and the liquid discharge amount can be better controlled.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of the front view of the present utility model;

FIG. 3 is a schematic view of the internal structure of the present utility model;

FIG. 4 is a schematic view of the tail structure of the present utility model;

reference numerals: 1. a tube body; 2. a liquid outlet; 3. a piston; 4. a thin rod; 5. a push plate; 6. a stud; 7. a cover; 8. an internal thread; 9. an external thread; 10. and a silica gel ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

The adjustable drug delivery device provided in this embodiment, as shown in fig. 1, 2 and 3, includes a body structure and a drug delivery structure, wherein:

the body structure comprises a pipe body 1, one end of the pipe body 1 is arc-shaped, a liquid outlet 2 is formed in the middle of the arc-shaped end, a piston 3 is arranged in the pipe body 1, the tail part of the piston 3 is connected with a horizontal thin rod 4 penetrating through the tail part of the pipe body 1, a push plate 5 is arranged at the tail part of the thin rod 4, the push plate 5 and the thin rod 4 jointly form a push handle, in addition, the push plate 5 is removable, as shown in fig. 4, a stud 6 is arranged at the inner side of the push plate 5, and meanwhile, a screw hole matched with the stud 6 is formed at the outer end of the thin rod 4, so that the push plate 5 is connected with the thin rod through the stud 6 in a screwing mode;

the structure of dosing includes the screw rod that the screw thread formed is offered to 4 periphery sides of slender rod, and this screw rod and the afterbody screw thread through connection of body 1, and its one end that keeps away from push pedal 5 is connected with piston 3 through the bearing, so, can rotate the screw rod under the prerequisite that does not influence piston 3 and promote piston 3 removal and go out liquid, and the distance that piston 3 moved is fixed every round of screw rod, goes out the liquid measure and also fixes, so, the how much of liquid measure is gone out in the control that can be better.

In addition to the above:

first, the above-mentioned bearing is located in the piston 3, its outer race is fixed with the piston 3, its inner race and screw rod interference fit, so when the screw rod rotates, the piston 3 can not rotate together, can not influence the removal of piston 3 promptly.

As shown in fig. 4, a cover 7 is arranged at the tail opening of the pipe body 1, an internal thread 8 is arranged at the inner side of the cover 7, and an external thread 9 matched with the internal thread 8 is arranged at the outer peripheral side of the tail of the pipe body 1, so that the pipe body 1 and the cover 7 are in threaded engagement, and the cover 7 is also removable on the premise that the push plate 5 is removable, thus the inside of the pipe body 1 can be conveniently cleaned; on the premise of installing the cover 7, the screw rod is connected with the cover 7 in a threaded penetrating way.

Third, as shown in fig. 3, the head of the piston 3 is arc-shaped to fit with the head of the pipe body 1, so that it can fit with the arc-shaped inner wall of the pipe body 1.

Fourth, as shown in fig. 4, a silica gel ring 10 is fixedly sleeved on the outer peripheral side of the tube body 1, on one hand, the back surface of the silica gel ring 10 is attached to the front surface of the cover 7, and on the other hand, the outer diameter of the silica gel ring is larger than the diameter of the cover 7, so that when the tube body 1 stretches into a cavity of a patient, the silica gel ring 10 can block the cavity of the patient from contacting the cover 7, and discomfort of the patient caused by the cover 7 is prevented.

In the idle position of the device, all the electric devices and the matched drivers are arranged, and all the driving devices refer to power elements, electric devices and matched power sources which are connected through wires by a person skilled in the art, and the specific connection means is to be referred to the description above, the electric connection of the electric devices is completed according to the sequence of work, and the detailed connection means is a well-known technology in the art.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. An adjustable applicator comprising a body structure and an administration structure:

the body structure comprises a pipe body (1), one end of the pipe body (1) is arc-shaped, a liquid outlet (2) is formed in the middle of the end, a piston (3) is arranged in the pipe body (1), the tail of the piston (3) is connected with a horizontal thin rod (4) penetrating through the tail of the pipe body (1), a push plate (5) is arranged at the tail of the thin rod (4), and the body structure is characterized in that a stud (6) is arranged at the inner side of the push plate (5), a screw hole matched with the stud (6) is formed in the outer end of the thin rod (4), and the thin rod is connected with the push plate (5) in a screwing mode through the stud (6) and the screw hole, so that the push plate (5) can be taken down; in addition, a set of cover (7) is arranged at the tail opening of the pipe body (1), an internal thread (8) is arranged at the inner side of the cover (7), and an external thread (9) matched with the internal thread (8) is arranged at the outer peripheral side of the tail of the pipe body (1), so that the pipe body (1) and the cover (7) are in threaded engagement; meanwhile, a silica gel ring (10) is fixedly sleeved on the outer peripheral side of the pipe body (1), the back surface of the silica gel ring (10) is attached to the front surface of the sleeve cover (7), and the outer diameter of the silica gel ring is larger than the diameter of the sleeve cover (7);

the drug delivery structure comprises a screw rod formed by arranging threads on the outer circumferential side of a thin rod (4), wherein the screw rod is in threaded penetrating connection with the tail thread of a pipe body (1), one end of the screw rod, which is far away from a push plate (5), is connected with a piston (3) through a bearing, the bearing is positioned in the piston (3), the outer ring of the bearing is fixed with the piston (3), and the inner ring of the bearing is in interference fit with the screw rod.

2. An adjustable drug delivery device according to claim 1, characterized in that the head of the piston (3) is arc-shaped to fit the head of the tube (1) so that it can fit the arc-shaped inner wall of the tube (1).