CN211245003U

CN211245003U - Dosing device for department of respiration

Info

Publication number: CN211245003U
Application number: CN201921993378.0U
Authority: CN
Inventors: 周勇
Original assignee: Chongqing Rongchang District People's Hospital
Current assignee: Chongqing Rongchang District People's Hospital
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-14
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a drug delivery device for the department of respiration, which comprises a tube body, a spray head and a liquid storage tank, the interior of the tube body is divided into a first cavity and a second cavity, a first piston is arranged in the first cavity in a sliding mode, a slide rod is fixedly arranged on the left side of the first piston, the free end of the slide rod penetrates through the tube body and is fixedly provided with a push rod, a second piston is arranged in the second cavity, the injector head is connected with the right end of the tube body, and is communicated with the second cavity, the liquid storage tank is positioned above the second cavity, the bottom of the tube body is provided with a communicating tube, the communicating pipe is communicated with the first cavity and the second cavity, the one-way valve is arranged on the communicating pipe, an air outlet is arranged on the right side of the second piston on the pipe wall of the pipe body, the pipe body is internally provided with a placing groove between the first cavity and the second cavity, and a U-shaped limiting block is installed in the placing groove. The utility model discloses can spray after multiple liquid medicine misce bene.

Description

Dosing device for department of respiration

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a device of dosing of department of respiration.

Background

The atomized inhalation therapy is an important and effective therapy method in the respiratory system disease therapy, the atomized inhalator is adopted to atomize the liquid medicine into tiny particles, and the medicine enters the respiratory tract and the lung for deposition in a respiratory inhalation mode, thereby achieving the aim of painless, rapid and effective therapy.

Chinese utility model patent (publication No. CN208911160U) discloses a deep drug feeding device for department of respiratory department, which comprises a main tube body, wherein one end of the main tube body is provided with a spray head, a piston is connected in the main tube body in a sliding way, one side of the piston far away from the spray head is fixedly connected with a slide bar, one end of the slide bar far away from the piston runs through the inner wall of the main tube body and is fixedly connected with a push rod, one end of the push rod is inserted with a guide rod in a sliding way, one end of the guide rod is fixedly connected with the main tube body, one end of the guide rod far away from the main tube body is fixedly connected with a limit block, the bottom of the main tube body near one end of the push rod is fixedly connected with a handle, the top of the main tube body near one end of the spray head is provided with a liquid storage box, the top of the, the liquid injection device is characterized in that a fixing plug is inserted in the liquid injection port in a sliding manner, the inner bottom of the liquid storage tank is communicated with the interior of the main pipe body through a liquid guide pipe, a liquid guide valve is connected to the liquid guide pipe in a threaded manner, and a lighting device is arranged at the bottom of the main pipe body close to one end of the injection head.

Above-mentioned department of respiration is with going deep device of dosing mixes the back blowout with multiple medicine, can control the dose of medicine simultaneously, does not have agitating unit to stir the liquid medicine in multiple liquid medicine inflow body and mixes for the liquid medicine mixes and to be inhomogeneous inadequately, thereby influences the result of use.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at: provides a drug delivery device for department of respiration, which is used for solving the problem that a plurality of kinds of liquid medicine are not fully and uniformly mixed in the existing drug delivery device.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

a drug delivery device for a respiratory department comprises a tube body, a spray head and a liquid storage tank, wherein the interior of the tube body is divided into a first cavity and a second cavity, a first piston is arranged in the first cavity in a sliding manner, a slide rod is fixedly arranged on the left side of the first piston, the free end of the slide rod penetrates through the tube body and is fixedly provided with a push rod, a second piston is arranged in the second cavity, the spray head is connected with the right end of the tube body and is communicated with the second cavity, the liquid storage tank is positioned above the second cavity, the top of the liquid storage tank is provided with a liquid injection hole, a fixing plug is arranged in the liquid injection hole, a connecting tube is connected between the bottom of the liquid storage tank and the tube body, one end of the connecting tube is communicated with the interior of the liquid storage tank, the other end of the connecting tube is communicated, the improved pipe body structure is characterized in that the communicating pipe is communicated with a first cavity and a second cavity, the communicating pipe is provided with a one-way valve, the one-way valve is arranged on the outer wall of the middle position of the second cavity, the pipe wall of the pipe body is provided with a gas outlet on the right side of the second piston, the gas outlet is communicated with the second cavity, the gas outlet is covered with a waterproof and breathable film, a placing groove is formed in the pipe body and between the first cavity and the second cavity, a U-shaped limiting block is arranged in the placing groove, a second spring is arranged below the limiting block in the placing groove, and a groove matched with the limiting block in size and shape is formed in the second piston.

Further, a pressure limiting valve is installed on the injection head. Due to the structural design, the situation that the second piston does not move yet is avoided, and the liquid medicine enters the injection head to be sprayed out.

Furthermore, a plurality of grooves are arranged on the push rod. The medical staff can hold the medical staff conveniently due to the structural design.

Further, a first spring is arranged between the push rod and the tube body, and a thin wire is connected between the first piston and the second piston. With the structure, the first spring enables the first piston to automatically reset after use, and the first piston pulls the second piston to reset by the thin wire.

Further, a support rod is arranged between the liquid storage tank and the pipe body. Such structural design can let and be connected more firmly between liquid reserve tank and the body.

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

1. the utility model discloses a promote first piston, make the gas in the first cavity stir the multiple liquid medicine in the second cavity through communicating pipe process check valve, make multiple liquid medicine mixing.

2. Through the stopper that sets up between first cavity and the second cavity, before letting first piston contactless second piston, the second piston is in fixed state, move to the right along with first piston, the stopper can be extruded by first piston, make the stopper move down, the second piston is no longer fixed, then first piston is pushing away the second piston and is moving right together, cross the gas outlet after, the increase of second cavity internal pressure, the pressure limiting valve is opened, the liquid medicine is extruded to the injector head, and then injects the respiratory track with the liquid medicine.

Drawings

FIG. 1 is a schematic view of a drug delivery device for respiratory department of the present invention;

FIG. 2 is a schematic sectional view of the administration device of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 1;

the device comprises a pipe body 1, a liquid storage tank 2, an injector head 3, a first cavity 4, a second cavity 5, a sliding rod 6, a first spring 7, a push rod 8, a connecting pipe 9, a valve 10, a communicating pipe 11, an air outlet 12, a one-way valve 13, a supporting rod 14, a first piston 15, a second piston 16, a fixed plug 17, a limiting block 18 and a limiting groove 19.

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. 1-4, the utility model discloses a device of dosing of department of respiration, including body 1, injector head 3 and liquid reserve tank 2, body 1 is inside to be divided into first cavity 4 and second cavity 5, slidable mounting has first piston 15 in the first cavity 4, first piston 15's left side fixedly connected with slide bar 6, body 1 and fixed mounting have push rod 8 are worn out to slide bar 6's free end, a plurality of recesses have been seted up on the push rod 8, the recess shape is and points assorted wave, the wave laminates with pointing more, let medical staff more comfortable when using, prevent to skid. Pushing the push rod 8 to the right pushes the first piston 15 to the right under the action of the slide rod 6. The second piston 16 is installed in the second cavity 5, the injection head 3 is connected with the right end of the pipe body 1 and communicated with the second cavity 5, the injection head 3 is provided with a pressure limiting valve, and the pressure limiting valve is in threaded connection with the injection head 3, so that liquid medicine is prevented from being injected out of the injection head 3 when the second piston 16 does not move. Liquid reserve tank 2 is located 5 tops of second cavity, and 2 tops of liquid reserve tank have been seted up and have been annotated the liquid hole, annotates the downthehole fixed stopper 17 of installing of liquid hole, is connected with connecting pipe 9 between 2 bottoms of liquid reserve tank and the body 1, the one end and the inside intercommunication of liquid reserve tank 2 of connecting pipe 9, the other end and the intercommunication of second cavity 5, install valve 10 on the connecting pipe 9, through opening valve 10 for the liquid medicine can follow liquid reserve tank 2 and flow into in the second cavity 5.

The bottom of body 1 is connected with communicating pipe 11, and communicating pipe 11 communicates first cavity 4 and second cavity 5, and installs check valve 13 on communicating pipe 11, and check valve 13 installs on the outer wall of second cavity 5 intermediate position, has seted up gas outlet 12 on the pipe wall of body 1 on the right side of second piston 16, and gas outlet 12 communicates with each other with second cavity 5, and gas outlet 12 coats and is stamped waterproof ventilated membrane. Air in the first cavity 4 enters the one-way valve 13 through the communicating pipe 11 and enters the second cavity 5, and small bubbles are generated to stir and uniformly mix liquid medicine in the second cavity 5; as the air bubbles enter the second chamber 5, the pressure in the second chamber 5 increases and the excess air in the second chamber 5 can be exhausted through the air outlet 12.

The placing groove is formed in the pipe body 1 and is arranged between the first cavity 4 and the second cavity 5, the limiting block 18 in a U shape is arranged in the placing groove, the second spring is arranged below the limiting block 18 in the placing groove, and the limiting groove 19 matched with the limiting block 18 in size and shape is formed in the second piston 16. The limiting block 18 has a fixing effect on the second piston 16, when the first piston 15 moves rightwards to the limiting block 18, the limiting block 18 is extruded to enable the limiting block 18 to move downwards, the second piston 16 is no longer in a fixed state, the first piston 15 is continuously pushed, the first piston 15 drives the second piston 16 to move rightwards together, and the liquid medicine is extruded to the injection head 3.

The sliding rod 6 is sleeved with a first spring 7, a thin wire is connected between the first piston 15 and the second piston 16, the first piston 15 can be reset through the arrangement of the first spring 7, when the first piston 15 is reset, the thin wire pulls the second piston 16, the second piston 16 is reset, and secondary use of the device is facilitated.

The bracing piece 14 is installed to liquid reserve tank 2, and the bracing piece 14 strengthens the relation of connection between liquid reserve tank 2 and the body 1, makes to be connected more firmly between the two.

The utility model discloses a use method as follows: firstly, injecting liquid medicine into the liquid storage tank 2 from the liquid injection hole, opening the valve 10 to enable the liquid medicine to flow into the second cavity 5, closing the valve 10, then holding the push rod 8 by hand, pushing the push rod 8 to the right to drive the first piston 15 to move rightwards, at the moment, the second piston 16 is in a fixed state due to the limiting block 18, moving the first piston 15 rightwards, extruding gas in the first cavity 4 to the one-way valve 13 through the communicating pipe 11, stirring the liquid medicine in the second cavity 5 through the one-way valve 13 by air, discharging redundant gas in the second cavity 5 through the exhaust port 12, when the first piston 15 moves rightwards to extrude the limiting block 18, moving the limiting block 18 downwards to enable the second piston 16 to move rightwards, enabling the first piston 15 to continuously move rightwards to touch the second piston 16, moving the first piston 15 and the second piston 16 together, after crossing the air outlet 12, increasing the pressure in the second cavity 5, the pressure limiting valve is opened, and the liquid medicine is extruded to the injection head 3 for injection; when the injection is finished, the hand is released, the first piston 15 is driven to automatically reset due to the elastic force of the first spring 7, the second piston 16 moves leftwards along with the traction of the thin line, the limiting groove 19 is matched with the limiting block 18, and the second piston 16 is reset and fixed.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. The utility model provides a device of dosing of department of respiration, includes body (1), injection head (3) and liquid reserve tank (2), its characterized in that: the injection device is characterized in that the inside of the pipe body (1) is divided into a first cavity (4) and a second cavity (5), a first piston (15) is arranged in the first cavity (4) in a sliding mode, a sliding rod (6) is fixedly arranged on the left side of the first piston (15), the free end of the sliding rod (6) penetrates out of the pipe body (1) and is fixedly provided with a push rod (8), a second piston (16) is arranged in the second cavity (5), the injection head (3) is connected with the right end of the pipe body (1) and is communicated with the second cavity (5), the liquid storage tank (2) is positioned above the second cavity (5), a liquid injection hole is formed in the top of the liquid storage tank (2), a fixing plug (21) is arranged in the liquid injection hole, a connecting pipe (9) is connected between the bottom of the liquid storage tank (2) and the pipe body (1), one end of the connecting pipe (9) is, the other end of the connecting pipe (9) is communicated with the second cavity (5), a valve (10) is installed on the connecting pipe (9), the bottom of the pipe body (1) is connected with a communicating pipe (11), the communicating pipe (11) is communicated with the first cavity (4) and the second cavity (5), a one-way valve (13) is installed on the communicating pipe (11), the one-way valve (13) is installed on the outer wall of the middle position of the second cavity (5), an air outlet (12) is formed in the right side of a second piston (16) on the pipe wall of the pipe body (1), the air outlet (12) is communicated with the second cavity (5), a waterproof breathable film covers the air outlet (12), a placing groove is formed in the pipe body (1) and is formed between the first cavity (4) and the second cavity (5), a U-shaped limiting block (18) is installed in the placing groove, and a second spring is installed below the limiting block (18) in the placing groove, and a groove (19) matched with the limiting block (18) in size and shape is formed in the second piston (16).

2. A respiratory drug delivery device as claimed in claim 1, wherein: the injector head (3) is provided with a pressure limiting valve, and the pressure limiting valve is in threaded connection with the injector head (3).

3. A respiratory drug delivery device as claimed in claim 2, wherein: the push rod (8) is provided with a plurality of grooves.

4. A respiratory drug delivery device as claimed in claim 3, wherein: the sliding rod (6) is sleeved with a first spring (7) between the push rod (8) and the pipe body (1), and a fine wire is connected between the first piston (15) and the second piston (16).

5. A respiratory drug delivery device as claimed in claim 4, wherein: a support rod (14) is arranged between the liquid storage tank (2) and the tube body (1).