CN215653382U

CN215653382U - Quantitative drug feeder for dermatology department

Info

Publication number: CN215653382U
Application number: CN202122201718.5U
Authority: CN
Inventors: 王芸芸; 余平子; 王秀红
Original assignee: Guizhou Medical University
Current assignee: Guizhou Medical University
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-01-28
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a quantitative drug feeder for dermatology, which comprises a drug injection cylinder, wherein a mounting box is fixedly connected to the position, close to the left end, of the lower surface of the drug injection cylinder, a quantitative mechanism is arranged inside the mounting box, a piston ball cap is arranged inside the drug injection cylinder, a connecting rod is fixedly connected to the right side wall of the piston ball cap, the right end of the connecting rod penetrates through the side wall of the drug injection cylinder and is fixedly connected with a pressing plate, a discharge pipe is fixedly connected to the left end of the drug injection cylinder, the left end of the drug injection cylinder is fixedly connected with a discharge pipe, the motor shaft can drive an intermittent gear to rotate after a stepping motor is started through the arrangement of the quantitative mechanism, the involution state between a displacement through hole and a fixed through hole is further controlled, the force for extruding the connecting rod is fixed, the single drug output is controlled by customizing the aperture size of the displacement through hole and the aperture of the fixed through hole, the involution times of the displacement through hole and the fixed through hole are controlled, the two drug output is fixed as multiples of the single drug output, achieving the purpose of quantitative administration.

Description

Quantitative drug feeder for dermatology department

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a quantitative drug feeder for dermatology.

Background

Many skin diseases are infectious clinically, a method of directly administering medicine to a diseased part is mostly adopted during treatment, and in order to enable the medicine to be absorbed by the skin more quickly, a mode of extruding ointment to the skin surface of a patient through a medicine administration device and then uniformly applying the ointment to the diseased part by medical staff is mainly adopted.

At present, although some drug delivery devices specially used for dermatology department exist clinically, certain defects still exist, namely in the using process, the discharge amount of ointment cannot be controlled, the phenomenon that the ointment is extruded too much is easily caused, the redundant ointment cannot be absorbed by the skin, and the ointment is very wasted.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a dermatological quantitative dispenser that solves the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a skin branch of academic or vocational study ration ware of dosing, includes annotates the feed cylinder, annotate the position fixed connection mounting box that feed cylinder lower surface is close to the left end, the inside of mounting box is equipped with quantitative mechanism, the inside of annotating the feed cylinder is equipped with the piston ball cap, the right side wall fixedly connected with connecting rod of piston ball cap, the right-hand member of connecting rod runs through annotates feed cylinder lateral wall and fixedly connected with press the pressing plate, the left end fixedly connected with discharging pipe of annotating the feed cylinder.

Preferably, the dosing mechanism includes step motor, step motor fixed mounting is on the inside wall of mounting box, the inside wall fixedly connected with seal cover of mounting box, the upper end of seal cover runs through annotate the feed cylinder lateral wall and extend to the inside of annotating the feed cylinder, the inside wall sliding connection of seal cover has the lifter plate, the mounting groove has been seted up to the lateral wall of lifter plate, symmetry fixedly connected with driven rack around the inside wall of mounting groove, the left end of step motor shaft runs through seal cover lateral wall and fixedly connected with intermittent type gear.

Preferably, the dosing mechanism further comprises a partition plate, the partition plate is fixedly connected with the inner side wall of the injection cylinder and is in close contact with the lifting plate, a fixing through hole and a displacement through hole are formed in the side walls of the partition plate and the lifting plate respectively, the fixing through hole and the displacement through hole are opposite, the intermittent gear is located inside the mounting groove, and the intermittent gear is meshed with the driven rack.

Preferably, the upper surface of the injection cylinder is fixedly connected with an injection pipe, the lower end of the injection pipe penetrates through the side wall of the injection cylinder and extends to a position between the partition plate and the piston ball cap, and a sealing valve is installed between the injection pipes in series.

Preferably, the upper surface of the charging barrel is fixedly connected with a vent pipe, the lower end of the vent pipe penetrates through the side wall of the charging barrel and extends to the position between the partition plate and the piston ball cap, and a one-way air valve is installed between the vent pipes in series.

Preferably, the outside cover of connecting rod is equipped with the spring, both ends respectively with the right side wall of piston ball cap and the inside wall fixed connection of annotating the feed cylinder about the spring.

Preferably, the position of annotating the feed cylinder lower surface and being close to the right-hand member fixedly connected with grab handle, annotate the lateral wall of feed cylinder and install the observation window.

Compared with the prior art, the utility model has the beneficial effects that:

(1) this ware is dosed to dermatology department's ration, through setting up quantitative mechanism, can be after step motor starts, the motor shaft drives intermittent gear and rotates, and then control is displaced the state of closing between through-hole and the fixed through-hole, the dynamics of extrusion connecting rod is fixed, the aperture size control single dosage of displacing through-hole and fixed through-hole through customization, through control displacement through-hole and fixed through-hole to closing the number of times, make the fixed multiple that once dosage of dosage through both, reach the purpose of dosing quantitatively, the discharge amount of current ware uncontrollable ointment of dosing has been solved, lead to appearing the ointment and extrude too much problem.

(2) This ware is dosed to dermatology department, through setting up notes material pipe and breather pipe, can make fixed through-hole and displacement through-hole misplace completely when annotating the ointment between the inside baffle of feed cylinder and the piston ball cap, open the seal valve, with the export of ointment container with annotate the material pipe and closing, pull the pressing plate right, drive piston ball cap through the connecting rod and move right, inhale the feed cylinder with the inside ointment of ointment container, solved current ware of dosing and wasted time and energy when adding medicine to device inside through going out the medicine mouth in reverse.

Drawings

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

FIG. 2 is a front sectional perspective view of the present invention;

FIG. 3 is a side cross-sectional view of the present invention;

fig. 4 is an enlarged view of the structure at a in fig. 2 according to the present invention.

In the figure: 1. a charging barrel is injected; 2. mounting a box; 3. a dosing mechanism; 301. displacing the through hole; 302. sealing sleeves; 303. a lifting plate; 304. a driven rack; 305. mounting grooves; 306. an intermittent gear; 307. a stepping motor; 308. a partition plate; 309. a fixing through hole; 4. a one-way air valve; 5. a breather pipe; 6. a sealing valve; 7. a material injection pipe; 8. a discharge pipe; 9. an observation window; 10. a handle; 11. a pressing plate; 12. a connecting rod; 13. a spring; 14. a piston ball cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a quantitative drug delivery device for dermatology, comprising a drug injection barrel 1, wherein a mounting box 2 is fixedly connected to the lower surface of the drug injection barrel 1 near the left end, a quantitative mechanism 3 is arranged inside the mounting box 2, a piston ball cap 14 is arranged inside the drug injection barrel 1, the right side wall of the piston ball cap 14 is fixedly connected with a connecting rod 12, the right end of the connecting rod 12 penetrates through the side wall of the drug injection barrel 1 and is fixedly connected with a pressing plate 11, and a discharge pipe 8 is fixedly connected to the left end of the drug injection barrel 1.

In this embodiment, preferably, the quantitative mechanism 3 includes a stepping motor 307, the stepping motor 307 is fixedly installed on the inner sidewall of the installation box 2, the inner sidewall of the installation box 2 is fixedly connected with a sealing sleeve 302, the upper end of the sealing sleeve 302 penetrates through the sidewall of the injection cylinder 1 and extends into the injection cylinder 1, the inner sidewall of the sealing sleeve 302 is slidably connected with a lifting plate 303, the sidewall of the lifting plate 303 is provided with an installation groove 305, the inner sidewall of the installation groove 305 is longitudinally and symmetrically and fixedly connected with driven racks 304, the left end of a motor shaft of the stepping motor 307 penetrates through the sidewall of the sealing sleeve 302 and is fixedly connected with an intermittent gear 306, by providing the quantitative mechanism 3, after the stepping motor 307 is started, the motor shaft drives the intermittent gear 306 to rotate, the lifting plate 303 is driven to move up and down in a reciprocating manner by the alternate engagement of the intermittent gear 306 and the two sets of driven racks 304, and further controls the involution state between the through hole 301 and the fixed through hole 309, the time length that the ointment in the material injection barrel 1 can be extruded outwards is fixed, and the purpose of quantitative administration is achieved.

In this embodiment, preferably, the quantitative mechanism 3 further includes a partition plate 308, the partition plate 308 is fixedly connected to an inner side wall of the material injection barrel 1, the partition plate 308 is in close contact with the lifting plate 303, the partition plate 308 and the lifting plate 303 are respectively provided with a fixing through hole 309 and a displacement through hole 301, the fixing through hole 309 and the displacement through hole 301 are opposite, the intermittent gear 306 is located inside the installation groove 305, the intermittent gear 306 is engaged with the driven rack 304, the lifting plate 303 is driven to ascend when the intermittent gear 306 is engaged with the front driven rack 304, the displacement through hole 301 and the fixing through hole 309 are changed from being completely opposite to being completely dislocated, then the intermittent gear 306 stops rotating, in this process, the ointment inside the material injection barrel 1 is allowed to pass through the fixing through hole 309 and the displacement through hole 301 in sequence, the time length of the material injection barrel 1 discharged by the material discharge pipe 8 is fixed, and further quantitative material discharge is realized, when the medicine is administered again, the intermittent gear 306 continues to rotate, engages with the rear driven rack 304, drives the lifting plate 303 to descend, enables the displacement through hole 301 to be matched with the fixed through hole 309 again, and repeats the operations.

In this embodiment, preferably, the upper surface of the material injection barrel 1 is fixedly connected with a material injection pipe 7, the lower end of the material injection pipe 7 penetrates through the side wall of the material injection barrel 1 and extends to a position between the partition plate 308 and the piston ball cap 14, a sealing valve 6 is installed between the material injection pipes 7 in series, the pipe diameter of the material injection pipe 7 is larger than that of the material discharge pipe 8, when ointment is injected into the material injection barrel 1, the displacement through hole 301 and the fixing through hole 309 are completely staggered, the sealing valve 6 is opened, the outlet of the ointment container is aligned with the material injection pipe 7, the pressing plate 11 is pulled rightwards, the piston ball cap 14 is driven by the connecting rod 12 to move rightwards, the space between the piston ball cap 14 and the partition plate 308 is expanded, the air pressure is reduced, the ointment in the ointment container is sucked into the space between the piston ball cap 14 and the partition plate 308 in the material injection barrel 1, and then the sealing valve 6 is closed.

In this embodiment, preferably, the upper surface of the syringe barrel 1 is fixedly connected with the vent pipe 5, the lower end of the vent pipe 5 penetrates through the side wall of the syringe barrel 1 and extends to a position between the partition plate 308 and the piston ball cap 14, the one-way air valve 4 is installed between the vent pipes 5 in series, the one-way air valve 4 only allows air inside the syringe barrel 1 to flow to the outside of the syringe barrel 1, external air is not allowed to enter the syringe barrel 1 through the vent pipe 5, after the maximum amount of ointment is sucked into the syringe barrel 1, the pressing plate 11 is pushed leftwards, air entering the syringe barrel 1 is discharged out of the syringe barrel 1 through the vent pipe 5, and then the ointment is compacted, so that the accuracy of quantitative administration is improved.

In this embodiment, it is preferred, the outside cover of connecting rod 12 is equipped with spring 13, spring 13 about both ends respectively with the right side wall of piston ball cap 14 and the inside wall fixed connection of annotating feed cylinder 1, through setting up spring 13, can prescribe a limit to the initial position of connecting rod 12 under the unstressed condition, reserve the activity space for when annotating the medicament through annotating material pipe 7.

In this embodiment, preferably, annotate the position fixedly connected with grab handle 10 that the lower surface of feed cylinder 1 is close to the right-hand member, annotate the lateral wall of feed cylinder 1 and install observation window 9, through setting up grab handle 10, the medical staff of being convenient for four indicates clasp handle 10, the thumb is pressed pressing plate 11, uses the device, and through setting up observation window 9, observation window 9 is the transparent glass material, and the medical staff of being convenient for sees the content of annotating the inside ointment of feed cylinder 1 through observation window 9, in time annotates the ointment.

The working principle and the using process of the utility model are as follows: when the device is used, the stepping motor 307 is started, the motor shaft drives the intermittent gear 306 to rotate, when the intermittent gear 306 is meshed with the front driven rack 304, the lifting plate 303 is driven to ascend, the displacement through hole 301 and the fixed through hole 309 are changed from complete involution to complete dislocation, then the intermittent gear 306 stops rotating, the pressing plate 11 is extruded leftwards in the process, as ointment in the injection cylinder 1 is allowed to pass through the fixed through hole 309 and the displacement through hole 301 in sequence, the time length for discharging the injection cylinder 1 from the discharge pipe 8 is fixed, namely the drug output under the state that the fixed through hole 309 and the displacement through hole 301 are involuted once is fixed, when the drug is administered again, the intermittent gear 306 continues rotating and is meshed with the rear driven rack 304 to drive the lifting plate 303 to descend, the displacement through hole 301 and the fixed through hole 309 are involuted again, the drug output is fixed to be multiple of the drug output by controlling the involution times of the displacement through hole 301 and the fixed through hole 309, the quantitative administration purpose is achieved, when the ointment between the partition 308 inside the material injection cylinder 1 and the piston ball cap 14 is used up, the fixed through hole 309 and the displacement through hole 301 are involuted, the spring 13 contracts to move the piston ball cap 14 to the left side of the injection tube 7, then, the fixed through hole 309 and the displacement through hole 301 are completely staggered, the sealing valve 6 is opened, the outlet of the ointment container is aligned with the material injection pipe 7, the pressing plate 11 is pulled rightwards, the piston ball cap 14 is driven by the connecting rod 12 to move rightwards, the space between the piston ball cap 14 and the clapboard 308 is expanded, the air pressure is reduced, ointment in the ointment container is sucked into the space between the piston ball cap 14 and the clapboard 308 in the charging barrel 1, then, the sealing valve 6 is closed, the pressing plate 11 is pushed leftwards, air entering the injection cylinder 1 is discharged out of the injection cylinder 1 through the vent pipe 5, ointment is compacted, and the accuracy of quantitative dosing is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A dermatological dosing device comprising an infusion cartridge (1), characterized in that: annotate position fixed connection mounting box (2) that feed cylinder (1) lower surface is close to the left end, the inside of mounting box (2) is equipped with dosing mechanism (3), the inside of annotating feed cylinder (1) is equipped with piston ball cap (14), the right side wall fixedly connected with connecting rod (12) of piston ball cap (14), the right-hand member of connecting rod (12) runs through annotates feed cylinder (1) lateral wall and fixedly connected with pressing plate (11), the left end fixedly connected with discharging pipe (8) of annotating feed cylinder (1).

2. A dermatological dosing device according to claim 1, wherein: quantitative mechanism (3) include step motor (307), step motor (307) fixed mounting is on the inside wall of mounting box (2), inside wall fixedly connected with seal cover (302) of mounting box (2), the upper end of seal cover (302) is run through annotate feed cylinder (1) lateral wall and extend to annotate the inside of feed cylinder (1), the inside wall sliding connection of seal cover (302) has lifter plate (303), mounting groove (305) have been seted up to the lateral wall of lifter plate (303), symmetry fixedly connected with driven rack (304) around the inside wall of mounting groove (305), the left end of step motor (307) motor shaft runs through seal cover (302) lateral wall and fixedly connected with intermittent type gear (306).

3. A dermatological dosing device according to claim 2, characterized in that: the quantitative mechanism (3) further comprises a partition plate (308), the partition plate (308) is fixedly connected with the inner side wall of the injection cylinder (1), the partition plate (308) is in close contact with the lifting plate (303), the side walls of the partition plate (308) and the lifting plate (303) are respectively provided with a fixing through hole (309) and a displacement through hole (301), the fixing through hole (309) and the displacement through hole (301) are oppositely arranged, the intermittent gear (306) is located inside the mounting groove (305), and the intermittent gear (306) is meshed with the driven rack (304).

4. A dermatological dosing device according to claim 3, wherein: the upper surface of the material injection barrel (1) is fixedly connected with a material injection pipe (7), the lower end of the material injection pipe (7) penetrates through the side wall of the material injection barrel (1) and extends to a position between the partition plate (308) and the piston ball cap (14), and a sealing valve (6) is installed between the material injection pipes (7) in series.

5. A dermatological dosing device according to claim 3, wherein: annotate the last fixed surface of feed cylinder (1) and be connected with breather pipe (5), and the lower extreme of breather pipe (5) runs through the feed cylinder (1) lateral wall of annotating and extends to the position between baffle (308) and piston ball cap (14), establish ties between breather pipe (5) and install one-way air valve (4).

6. A dermatological dosing device according to claim 1, wherein: the outside cover of connecting rod (12) is equipped with spring (13), both ends respectively with the right side wall of piston ball cap (14) and the inside wall fixed connection of annotating feed cylinder (1) about spring (13).

7. A dermatological dosing device according to claim 1, wherein: annotate the position fixedly connected with grab handle (10) that feed cylinder (1) lower surface is close to the right-hand member, annotate the lateral wall of feed cylinder (1) and install observation window (9).