CN111388186A

CN111388186A - Medicine dispensing device

Info

Publication number: CN111388186A
Application number: CN202010238564.4A
Authority: CN
Inventors: 范丽琪
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-07-10

Abstract

The invention discloses a medicine dispensing device which comprises a liquid storage bottle, a spray rod, a connecting pipe and a dispensing mechanism, wherein liquid medicine is arranged in the liquid storage bottle; the spray rod is rod-shaped, and a spray pipe is arranged in the spray rod along the axial direction; two ends of the connecting pipe are respectively connected and communicated with the liquid storage bottle and the spray rod, and a guide cylinder communicated with the connecting pipe is arranged in the connecting pipe; the dropping mechanism is arranged in the connecting pipe and extends out of the guide cylinder, and the dropping mechanism is pressed in a dropping mode, so that the liquid medicine in the liquid storage bottle can be sucked into the connecting pipe and can be driven to be quantitatively sprayed out of the spray rod. Provides a medicine dispensing device, thereby achieving the purpose of dispensing medicine conveniently, quickly and quantitatively.

Description

Medicine dispensing device

Technical Field

The invention relates to a medical instrument, in particular to a medicine dropping device.

Background

In clinical practice, dosing is required for medicine delivery, for example, in ophthalmology, due to the limited amount of liquid medicine contained in the eye socket of the eye, dosing is required when dispensing eye drops. The traditional eye drop bottle is simple in structure, when medical staff feed medicine to a patient, the eye drop bottle is usually used for manually dropping the liquid medicine, in the dropping process, the eye medicine amount is completely manually controlled through clinical experience of medical workers, and if the force is too large, medicine waste is caused; if the force is too low, the dosage is insufficient, and the treatment effect cannot be achieved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a medicine ordering device to achieve the purpose of quantitative medicine feeding.

In order to achieve the purpose, the invention is realized by the following technical scheme: an administration device comprising:

the liquid storage bottle is internally provided with liquid medicine;

the spray rod is rod-shaped, and a spray pipe is arranged in the spray rod along the axial direction;

the two ends of the connecting pipe are respectively connected and communicated with the liquid storage bottle and the spray rod, and the middle part of the connecting pipe is provided with a guide cylinder communicated with the connecting pipe;

the dropping mechanism is arranged in the connecting pipe and extends out of the guide cylinder, and the dropping mechanism is pressed in a dropping mode to suck the liquid medicine in the liquid storage bottle into the connecting pipe and drive the liquid medicine to be quantitatively sprayed out of the spray rod.

Furthermore, the dropping mechanism comprises a suction pipe, a driving assembly, a first sealing assembly and a second sealing assembly, one end of the connecting pipe is a suction end, the other end of the connecting pipe is a liquid outlet end, the suction end is communicated with the liquid storage bottle, the suction pipe is arranged on the suction end and extends to the bottom of the liquid storage bottle, and the liquid outlet end is connected with the spray rod and communicated with the spray pipe; the guide cylinder is arranged on the side wall of the connecting pipe and communicated with the connecting pipe, and the driving assembly can be inserted into the guide cylinder in a sliding manner; the first sealing assembly is arranged in the suction end and close to the liquid storage bottle; the second sealing assembly is arranged in the spray pipe and blocks a channel between the spray pipe and the suction end; the driving assembly is pressed to drive the first sealing assembly to move towards the pipe orifice close to the suction pipe and block the pipe orifice of the suction pipe, and meanwhile, the second sealing assembly is driven to move towards the direction far away from the liquid outlet end, so that the spray pipe and the liquid outlet end are in a communicated state.

Further, the driving assembly comprises a piston and a third elastic piece, the piston can be inserted into the guide cylinder in a closed mode, one end of the third elastic piece is arranged at the bottom of the piston, and the other end of the third elastic piece is arranged on the side wall of the connecting bin.

Further, the first sealing assembly comprises a first fixing plate, a first elastic piece and a first plug, the first fixing plate and the suction end are coaxially arranged, the outer wall of the first fixing plate and the inner wall of the suction end are arranged at intervals, the first elastic piece is arranged on the first fixing plate and extends towards the direction close to the suction tube, and the first plug is arranged on the first elastic piece and close to the suction tube; the second sealing assembly comprises a second fixing plate, a second elastic piece and a second plug, the second fixing plate is hollow, the second fixing plate is arranged on the pipe wall of the spray pipe, the second elastic piece is arranged on the second fixing plate and extends towards the direction close to the suction pipe, and the second plug is plugged on the suction pipe.

Furthermore, the first sealing assembly further comprises a limiting block, and the limiting block is arranged on the inner wall of the suction end and can abut against the first fixing plate.

Furthermore, the drip mechanism also comprises a safety fastener, the safety fastener comprises a buckle ring, the buckle ring is in an arc shape, and the buckle ring is coaxially arranged with the guide cylinder and is positioned at one end far away from the connecting pipe; the middle part of the inner wall of the safety buckle is provided with an annular groove, the groove is close to one side of the connecting pipe, a guide groove is formed in the axial direction of the safety buckle, a strip-shaped convex rib is arranged on the side wall of one end of the connecting pipe, and the convex rib can be slidably clamped in the groove.

Further, the safety fastener further comprises a stop block, wherein the stop block is arranged in the groove and is positioned at the edge of the guide groove.

Further, the safety fastener further comprises a fourth elastic piece, wherein the fourth elastic piece is arranged on the side wall of the convex rib and extends along the direction perpendicular to the convex rib.

Furthermore, the drip mechanism further comprises a limiting rod, the limiting rod is clamped on the connecting pipe and located at a position opposite to the piston, one end of the limiting rod is located outside the connecting pipe, the other end of the limiting rod is inserted into the connecting pipe, and the end part of the limiting rod can be close to or far away from the piston to move.

Furthermore, the spray pipe is located and is kept away from drip mechanism one end and is the wave form.

The invention has the beneficial effects that:

the medicine dropping device comprises a liquid storage bottle, a spray rod and a dropping mechanism. The drip mechanism comprises a connecting pipe, a guide cylinder, a suction pipe, a driving assembly, a first sealing assembly and a second sealing assembly. When the dropping mechanism is used, only the electric dropping mechanism needs to be pressed down, and the liquid medicine in the liquid storage bottle is sucked into the dropping mechanism and is quantitatively sprayed out of the spray rod. Then the dosing can be completed. The device is simple to operate, safe and quantitative. Thereby achieving the purpose of convenient, rapid and quantitative medicine application.

Drawings

FIG. 1 is a schematic view of a medicine applying device according to the present invention;

FIG. 2 is a schematic view of a medicine dispensing device according to the present invention;

FIG. 3 is a schematic view of a piston of a medicine dispensing device according to the present invention;

FIG. 4 is a schematic view of a dispensing device according to the present invention with ribs on the piston not inserted into the guide grooves;

FIG. 5 is a schematic view of a piston of a medicine dispensing device according to the present invention, with a rib inserted into a guide groove;

reference numerals: 100-liquid storage bottle, 200-spray rod, 210-spray tube, 300-connecting tube, 310 guide tube, 320-suction end, 330-liquid outlet end, 400-drip mechanism, 410-suction tube, 420-driving component, 421-piston, 422-third elastic component, 430-first sealing component, 431-first fixing plate, 432-first elastic component, 433-first plug, 440-second sealing component, 441-second fixing plate, 442-second elastic component, 443-second plug, 450-safety port and 460-limiting rod.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 5, the present embodiment provides a medicine spotting device including a liquid storage bottle 100, a spray bar 200, a connection pipe 300, and a spotting mechanism 400. Is used for quantitative spot-type medicine feeding.

Specifically, the liquid storage bottle 100 is filled with liquid medicine. In practical use, the liquid storage bottle 100 may be provided with a liquid inlet, and the liquid inlet is covered by a plug capable of being opened. When the medicine liquid in the medicine is used up, the medicine liquid can be added through the medicine inlet.

The spray rod 200 is rod-shaped, and a spray pipe 210 is axially arranged in the spray rod 200. The liquid medicine may be sprayed through the spray tube 210. In this embodiment, in order to prevent the excessive force of the ejected drug solution, the end of the nozzle 210 away from the drip mechanism 400 is formed in a corrugated shape. The liquid medicine reaches the end of the nozzle 210, and the speed of the liquid medicine is slowed by the bellows, and the liquid medicine finally flows out in a drip shape. Both ends of the connection pipe 300 are connected and communicated with the liquid storage bottle 100 and the spray bar 200, respectively, and a guide cylinder 310 communicated with the connection pipe 300 is provided in the middle of the connection pipe 300. The drip mechanism 400 is disposed in the connection tube 300 and protrudes from the guide cylinder 310. The drip mechanism 400 is driven by a small pressure to suck the liquid medicine in the liquid bottle 100 into the connection tube 300 and to discharge the liquid medicine from the spray bar 200 in a constant amount.

Specifically, the drip mechanism 400 includes a suction tube 410, a drive assembly 420, and first and

second seal assemblies

430 and 440. The connection tube 300 has a suction end 320 at one end and a liquid outlet end 330 at the other end. The suction end 320 is communicated with the liquid storage bottle 100, and the suction end 320 is provided with a suction tube 410, and the suction tube 410 extends to the bottom of the liquid storage bottle 100. The liquid outlet end 330 is connected to the spray bar 200 and communicates with the spray bar 210. The guide cylinder 310 is provided at a sidewall of the connection pipe 300 and communicates therewith. The driving assembly 420 is slidably inserted into the guide cylinder 310. The first sealing assembly 430 is disposed within the suction end 320 and proximate to the reservoir 100; the second seal assembly 440 is disposed within the nozzle 210 and blocks the passage between the nozzle 210 and the suction end 320. The driving assembly 420 is pressed to drive the first sealing assembly 430 to move towards the nozzle of the suction tube 410 and block the nozzle of the suction tube 410, and simultaneously drive the second sealing assembly 440 to move away from the liquid outlet end 330 so that the liquid outlet end 210 is communicated with the liquid outlet end 330.

The driving assembly 420 includes a piston 421 and a third elastic member 422. The piston 421 can be closely inserted into the guide cylinder 310. One end of the third elastic member 422 is disposed at the bottom of the piston 421, and the other end is disposed at the side wall of the connection chamber. The first sealing assembly 430 includes a first fixing plate 431, a first elastic member 432 and a second stopper 443. The first fixing plate 431 is coaxially disposed with the suction end 320, and an outer wall of the first fixing plate 431 is spaced apart from an inner wall of the suction end 320. The first elastic member 432 is provided on the first fixing plate 431 and extends in a direction approaching the suction tube 410. A first stopper 433 is disposed on the first elastic member and adjacent to the suction pipe 410. The second sealing assembly 440 includes a second fixing plate 441, a second elastic member 442 and a second stopper 443. The second fixing plate 441 is hollow, and the second fixing plate 441 is disposed on an inner wall of the suction end 320. The second elastic member 442 is disposed in the second fixing plate 441, the second elastic member 442 is disposed on the second fixing plate 441 and extends in a direction approaching the suction tube 410, and the second stopper 443 is closed on the suction tube 410.

When in use, in a normal state, the first elastic element 432 of the first sealing assembly 430 is in a relaxed state, the first plug 433 is not blocked on the suction tube 410, and the suction tube 410 is in a communication state; the second stopper 443 is blocked at the intersection of the nozzle 210 and the liquid outlet end 330 under the action of the second elastic member 442, when the piston 421 is pressed in a direction close to the connection tube 300, the liquid medicine pushes the first fixing plate 431 to advance in a direction close to the liquid storage bottle 100, so that the first stopper 433 blocks the suction tube 410, and meanwhile, the liquid medicine impacts the second stopper 443, the second elastic member 442 is compressed, the channel of the nozzle 210 is opened, and a certain amount of liquid medicine is ejected from the nozzle 210; after the piston 421 is released, the piston 421 is pushed to retreat under the action of the third elastic member 422, the pressure in the connecting tube 300 is reduced and is in a negative pressure state, the liquid medicine in the liquid storage bottle 100 impacts the first plug 433, the first elastic member 432 contracts, the channel of the suction tube 410 is opened, and the liquid medicine enters the connecting tube 300; meanwhile, under the action of the external atmospheric pressure and the restoring force of the second elastic member 442, the second stopper 443 is re-blocked at the intersection of the nozzle 210 and the connection pipe 300, and the passage flowing into the nozzle 210 is closed.

In this embodiment, the first sealing assembly 430 further includes a stopper 434. The stopper 434 is disposed on the inner wall of the suction end 320 and can abut against the first fixing plate 431. The limiting block 434 can limit the first fixing plate 431, and prevent the first fixing plate 431 from driving the first plug 433 to jump around in the connecting pipe 300.

The drive assembly 420 also includes, as a preferred embodiment, a safety catch 450. The safety catch 450 is used to prevent the piston 421 from being accidentally pressed to spray, which in turn causes the safety catch 450 to include a snap ring 451. The retaining ring 451 is arc-shaped, and the retaining ring 451 is coaxially disposed with the guide cylinder 310 and located at an end away from the connection pipe 300. The middle of the inner wall of the safety catch 450 is provided with an annular groove 452. A guide groove 453 is formed at one side of the groove 452 close to the connection pipe 300 along the axial direction of the safety catch 450. A strip-shaped rib 456 is provided on the side wall of the end of the piston 421 away from the connecting pipe 300. The ribs 456 are slidably received in the grooves 452. When medicine is not needed to be administered, the rib 456 is clamped in the groove 452, when medicine is needed to be administered, the piston 421 is rotated, the rib 456 on the piston 421 is aligned with the guide groove 453, then the piston 421 is pressed downwards, and the rib 456 slides into the guide groove 453, so that the medicine liquid can be sucked.

As a preferred embodiment, the safety catch 450 also includes a stop 454. A stopper 454 is provided in the groove 452 and is positioned at an edge of the guide groove 453. When the rib 456 rotates with the stopper 454, the piston 421 can be pressed down to spray, which is convenient for operation and use.

As a more preferred embodiment, the safety buckle 450 further includes a fourth elastic member 455. The fourth elastic member 455 enables the piston 421 to be automatically reset. The fourth elastic member 455 is disposed at a sidewall of the rib 456 and extends in a direction perpendicular to the rib 456. When the spray gun is used, the piston 421 needs to be rotated in a direction close to the fixed direction of the stopper 454, when the convex rib 456 cannot rotate, the piston 421 is aligned with the guide groove 453, at the moment, the piston 421 is pressed downwards for spraying, after the spraying is finished, the piston 421 is loosened, under the action of the third elastic member 422, the piston 421 retreats, when the convex rib 456 falls off the guide groove 453 and then enters the groove 452, and under the left and right of the fourth elastic member 455, the piston 421 reversely rotates and automatically resets.

In this embodiment, the dispensing device further includes a limiting rod 460. The limit rod 460 is clamped on the connection tube 300 and located opposite to the piston 421. One end of the limiting rod 460 is located outside the connecting pipe 300, and the other end is inserted into the connecting pipe 300. The end of the stopper 460 can move closer to or away from the piston 421. The limiting rod 460 is used for controlling the stroke of the piston 421, so as to change the disposable dropping amount. In this embodiment, the limit rod 460 is preferably a screw rod, and when the amount of the medicine ejected at one time needs to be changed, the amount of the medicine ejected at one time is reduced by rotating the screw rod in the direction close to the piston 421; the reverse rotation can improve the dosage sprayed at one time. In other embodiments, the limitable rod 460 can also limit the position through other directions, such as a clip, a limiting pin, and the like.

The specific use method of the medicine dropping device comprises the following steps:

before use, the liquid medicine is stored in the liquid storage bottle 100 through the medicine inlet, and the length of the limiting rod 460 extending into the connecting pipe 300 is adjusted according to the disposable required medicine amount, so that the expansion amount of the piston 421 is controlled to be matched with the medicine to be sprayed; then, the piston 421 is rotated, and after the rib 456 abuts against the stopper 454, the piston 421 is pressed downwards, and the liquid medicine passes through the nozzle 210 and finally flows out from the end of the nozzle 210; after the medicine is taken once, the piston 421 is released, the piston 421 is reset under the action of the third elastic member 422 and the fourth elastic member 455, and the operation is repeated when the medicine is taken next time.

The medicine adding device comprises a liquid storage bottle 100, a spray rod 200, a connecting pipe 300 and a drip mechanism 400. The drip mechanism 400 includes a suction tube 410, a drive assembly 420, and a first seal assembly 430 and a second seal assembly 440. The driving assembly 420 includes a piston 421 and a third elastic member 422. When in use, the piston 421 is only pressed to inject the medicine in a fixed amount. When the medicine feeding amount needs to be adjusted once, the length of the limiting rod 460 extending into the connecting pipe 300 is only needed; the safety buckle 450 has the function of preventing accidental medicine spraying, and when the medicine dispensing device is used, the piston 421 needs to be rotated first, and then the piston 421 is pressed down to spray, so that one medicine dispensing operation is completed; then the piston 421 is loosened, and the piston 421 is reset, so as to prevent the waste of the liquid medicine caused by accidental operation. It is operationally simple, safe and quantitative. Thereby achieving convenient, rapid and quantitative medicine dispensing operation.

Finally, it should be noted that: while there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An administration set, comprising:

the liquid storage bottle is internally provided with liquid medicine;

2. The medication dispensing device of claim 1, wherein: the drip mechanism comprises a suction pipe, a driving assembly, a first sealing assembly and a second sealing assembly, one end of the connecting pipe is a suction end, the other end of the connecting pipe is a liquid outlet end, the suction end is communicated with the liquid storage bottle, the suction pipe is arranged on the suction end, the suction pipe extends to the bottom of the liquid storage bottle, and the liquid outlet end is connected with the spray rod and communicated with the spray pipe; the guide cylinder is arranged on the side wall of the connecting pipe and communicated with the connecting pipe, and the driving assembly can be inserted into the guide cylinder in a sliding manner; the first sealing assembly is arranged in the suction end and close to the liquid storage bottle; the second sealing assembly is arranged in the spray pipe and blocks a channel between the spray pipe and the suction end; the driving assembly is pressed to drive the first sealing assembly to move towards the pipe orifice close to the suction pipe and block the pipe orifice of the suction pipe, and meanwhile, the second sealing assembly is driven to move towards the direction far away from the liquid outlet end, so that the spray pipe and the liquid outlet end are in a communicated state.

3. The medication dispensing device of claim 2, wherein: the driving assembly comprises a piston and a third elastic piece, the piston can be inserted into the guide cylinder in a closed mode, one end of the third elastic piece is arranged at the bottom of the piston, and the other end of the third elastic piece is arranged on the side wall of the connecting bin.

4. The medication dispensing device of claim 2, wherein: the first sealing assembly comprises a first fixing plate, a first elastic piece and a first plug, the first fixing plate and the suction end are coaxially arranged, the outer wall of the first fixing plate and the inner wall of the suction end are arranged at intervals, the first elastic piece is arranged on the first fixing plate and extends towards the direction close to the suction tube, and the first plug is arranged on the first elastic piece and close to the suction tube; the second sealing assembly comprises a second fixing plate, a second elastic piece and a second plug, the second fixing plate is hollow, the second fixing plate is arranged on the pipe wall of the spray pipe, the second elastic piece is arranged on the second fixing plate and extends towards the direction close to the suction pipe, and the second plug is plugged on the suction pipe.

5. The medication dispensing device of claim 4, wherein: the first sealing assembly further comprises a limiting block, and the limiting block is arranged on the inner wall of the suction end and can abut against the first fixing plate.

6. The medication dispensing device of claim 3, wherein: the drip mechanism further comprises a safety fastener, the safety fastener comprises a buckle ring, the buckle ring is in an arc shape, and the buckle ring and the guide cylinder are coaxially arranged and are positioned at one end far away from the connecting pipe; the middle part of the inner wall of the safety buckle is provided with an annular groove, the groove is close to one side of the connecting pipe, a guide groove is formed in the axial direction of the safety buckle, a strip-shaped convex rib is arranged on the side wall of one end of the connecting pipe, and the convex rib can be slidably clamped in the groove.

7. The medication dispensing device of claim 6, wherein: the safety fastener further comprises a stop block, wherein the stop block is arranged in the groove and is positioned at the edge of the guide groove.

8. The medication dispensing device of claim 6, wherein: the safety fastener further comprises a fourth elastic piece, wherein the fourth elastic piece is arranged on the side wall of the convex rib and extends along the direction perpendicular to the convex rib.

9. The medication dispensing device of claim 3, wherein: the drip mechanism further comprises a limiting rod, the limiting rod is clamped on the connecting pipe and located at a position opposite to the piston, one end of the limiting rod is located outside the connecting pipe, the other end of the limiting rod is inserted into the connecting pipe, and the end part of the limiting rod can be close to or far away from the piston to move.

10. The medication dispensing device of claim 1, wherein: the spray pipe is located and is kept away from drip mechanism one end is the ripple shape.