CN217489288U

CN217489288U - Dispensing device

Info

Publication number: CN217489288U
Application number: CN202220537423.7U
Authority: CN
Inventors: 李开雄; 李晓燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-09-27
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses a medicine dispenser, which comprises an outer sleeve, a core bar and a sheath, wherein the top of the core bar is provided with a piston, and the top of the outer sleeve is provided with a needle head; the outer sleeve, the sheath and the needle head are all integrated plastic products, and particularly, a cavity and a core of the outer sleeve, the sheath and the needle head are reserved when a mold is manufactured, and the mold is formed by injection molding of an injection molding machine; the core rod and the piston are produced by other dies and then are arranged in the outer sleeve; the needle head is positioned in the sheath, and the lower part of the needle head is connected with the top of the sheath; the liquid channel on the needle is communicated with the inner cavity of the outer sleeve. The utility model discloses overcoat and syringe needle set up as an organic whole, and the production link is few, and is efficient, and the production process is environmental protection very, and low in manufacturing cost can avoid simultaneously because of the loaded down with trivial details operation that the syringe needle easily drops and bring.

Description

Dispensing device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to medicine dispenser.

Background

Traditional injection medicine dispensing device comprises needle tubing, needle file, sheath, overcoat, core bar, 6 accessories of piston, and the syringe needle is the steel needle, and the steel needle that dispenses at present uses the side opening syringe needle to be main, and three bevel syringe needles are for assisting, and these two kinds of syringe needles are because the processing link is many, have some problems of various kinds, if: the side hole syringe needle has that the flow is not enough, the drill way warp, there is the washing dead angle in the cone cavity, and the medicine extraction is not thorough night, has the liquid medicine to remain the quality problems such as in the cone cavity of syringe needle after adding medicine, and the needle point of system all can produce some sweeps and dust with the polishing in side hole syringe needle course of working, and the problem that produces the bottle plug chip easily when three sloping syringe needles exist the puncture bottle plug, and the point portion of these two kinds of syringe needles has the easy outer fish tail, stabs medical science and recovery processing operating personnel's phenomenon.

The two needle dispensers also share some problems, such as: the needle base is easy to fall off, the sheath needs to be sleeved on the needle base after use, the needle base with the needle head needs to be separated from the outer sleeve joint, the needle base and the outer sleeve joint are respectively placed in different recycling boxes, the operation is not only troublesome, but also risks of being injured and infected by the needle point, chemical raw materials such as oil removal agents, brightening agents, cleaning agents and phosphoric acid are needed for processing the stainless steel needle head, the stainless steel needle head is not environment-friendly, influences the body of workers, both the stainless steel needle head and the worker need 6 accessories, several assembling devices are needed, broken hairs, small foreign matters and the like are easily generated due to more production processes and are attached to products, and then subsequent after-sale quality complaints and disputes are caused, which is a quality problem with the most complaints of users, and further because of more accessories, required dies, staff, pad printing, assembling devices and less consumable materials exist, the processing of the stainless steel needle tube is only carried out, and the production from upstream to downstream processes is carried out, the method needs more than 30 procedures of high-temperature melting, buttock making, hot rolling, heat treatment, cold rolling, dephosphorization, acid pickling, detection, belt making, welding, tube drawing, straightening, leakage detection, sleeve, tube cutting, deburring, deoiling, tumbling, separation, dehydration, needle point making, polishing, hole making, cleaning and the like of raw materials, the treatment after the production and the use of the method not only needs a large amount of energy consumption, but also can cause adverse effect on the environment,

the scale mark on traditional overcoat need be with the printing machine, printing ink, banana oil, there are printing ink pollution overcoat's inner wall and surface in process of production, the scale mark off position scheduling problem, influence product quality, debugging equipment and production process all can produce some waste products, and dilute printing ink and need use banana oil, this smell is also relatively bad smell, long-term operation can influence workman's health, and the scale mark of printing just sees not clearly when the darker liquid medicine of colour is joined in marriage to convert a bit, the light-proof dispensing ware that has is because the overcoat colour is also relatively dark, if meet the colour of liquid medicine also when relatively dark, then also see not clearly, bring inconvenience for the operation, can cause the dose inaccurate.

In addition, the injection type medicine dispenser that does not have exhaust function that current commonly uses, because xiLin bottle is sealed, when the extraction of liquid medicine and filling, the positive negative pressure in the bottle can not automatically regulated, lead to the work of dispensing very hard, in order to solve this problem, along with medical technology's continuous development, the medicine dispenser of exhaust formula has also followed utility model and has come out, but these medicine dispensers of exhaust formula have exhaust function, but the accessory is many, and the production link is many, and manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medicine dispenser adopts overcoat, syringe needle of integral type, and production is convenient, has avoided the problem because of the syringe needle drops and brings.

A medicine dispenser comprises an outer sleeve and a core rod, wherein a piston is arranged at the top of the core rod.

The outer sleeve and the needle head are arranged integrally, production links are few, efficiency is high, the production process is very environment-friendly, manufacturing cost is low, and meanwhile, complex operation caused by the fact that the needle head is easy to drop can be avoided.

Preferably, the needle protection device further comprises a sheath which is integrally and partially connected with the outer sleeve and encloses the needle inside the sheath.

Preferably, a wedge-shaped notch is reserved at the unconnected position of the sheath and the outer sleeve, so that the sheath can be conveniently broken and separated from the lower connected position.

Preferably, an avoiding notch for avoiding the needle head when the sheath is broken off is arranged on one side of the sheath corresponding to the wedge-shaped notch.

Preferably, the top of the sheath is provided with an inclined plane, the inclined plane is inclined upwards along the direction horizontally deviating from the avoidance gap, and the inclination angle is 30-33 degrees; more preferably, the inclination angle of the slope is 32 degrees.

Preferably, the needle is further provided with an air channel extending from the needle tip side of the needle to the outer sleeve direction, and two ports of the air channel are communicated with the outside.

Preferably, the gas channel is an L-shaped channel which is arranged inside the needle and has a circular cross section.

Preferably, the gas channel is a groove-shaped channel arranged on the side wall of the needle head; more preferably, the edge of the notch of the groove-shaped channel is arc-shaped, so that the rubber plug cannot be cut when the needle head rotates.

Preferably, the core rod is provided with scale marks for displaying the volume of the liquid in the outer sleeve and numbers matched with the corresponding scale marks.

Preferably, the scale marks are notch strip-shaped hollow scale marks or inner hollow strip-shaped scale marks; the numbers are concave, convex or hollow.

The reverse measurement scale is the fretwork, and the digit of reverse mark is also the fretwork, reserves the model when the mould preparation through injection moulding machine-shaping, need not later stage printing for replace the traditional printing scale on the ware overcoat that dispenses, this scale is clear, not only can be used to daily ordinary liquid medicine to join in marriage and convert, still is applicable to joining in marriage of the liquid medicine that needs the light-resistant, can solve traditional printing scale mark because of the liquid medicine colour is dark and overcoat colour is darker and see not clear the vexation of scale mark.

The utility model has the advantages that:

(1) the outer sleeve and the needle head are arranged integrally, the production link is few, the efficiency is high, the production process is very environment-friendly, the manufacturing cost is low, and meanwhile, the complex operation caused by the fact that the needle head is easy to fall off can be avoided.

(2) The needle head is provided with a gas channel, so that the pressure in the bottle can be automatically adjusted, and the rapid dispensing work can be easily realized along with the push-pull of the core rod.

(3) Through set up reverse fretwork scale mark and digit on the core bar, can effectively solve traditional printing scale mark because of the dark and darker vexation of not seeing clearly the scale mark of overcoat colour of liquid medicine colour.

Drawings

FIG. 1 is a schematic structural view of a dispenser with an "L" shaped gas passageway;

FIG. 2 is a schematic cross-sectional view of the needle of FIG. 1;

FIG. 3 is a schematic structural view of a dispenser with a slotted gas passage;

fig. 4 is a schematic cross-sectional view of the needle of fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 1 and 2, the dispenser comprises an outer sleeve 1, a core rod 2 and a sheath 3, wherein the top of the core rod is provided with a piston 4, and the top of the outer sleeve 1 is provided with a needle 5. The outer sleeve 1, the sheath 3 and the needle head 5 are all-plastic products, and particularly, when a mold is manufactured, a cavity and a core of the outer sleeve, the sheath and the needle head are reserved, and the mold is formed by injection molding through an injection molding machine. The core rod 2 and the piston 4 are produced for a further mould and then both placed in the outer jacket 3. The length of the needle head 5 is about 21-23 mm, the diameter of the needle head is not more than 4mm, the needle head is positioned in the sheath 3, and the lower part of the needle head is connected with the top of the outer sleeve 1; the liquid passage 51 of the needle 5 has a diameter of 1.2mm and communicates with the lumen of the outer sleeve 1.

The top of the sheath 3 is provided with a slope 31, the angle between the slope 31 and the axis of the sheath 3 is 32 degrees, and the slope 31 is used for separating the sheath 3 from the sheath 1 by pinching and holding with big fingers when dispensing is needed, so as to expose the needle 5. The breaking method comprises the following specific steps: the big thumb and the index finger are used together, the big thumb is placed on the inclined plane 31 of the sheath 3, the index finger is placed on the back of the inclined plane 31, then the index finger is bent to be used as an auxiliary fulcrum of the lever principle, the two fingers are pinched, and the big thumb is pulled in the opposite direction of the inclined plane 31, so that the sheath 3 can be easily broken and separated from the outer sleeve 1 connected below; in order to prevent the needle 5 from being touched when the sheath 3 is broken, an avoiding notch 32 is formed in one side of the sheath 3 on the inclined surface 31, that is, the large thumb finger is forcibly broken in a direction opposite to the avoiding notch 32.

In order to better break and separate the sheath 3 from the lower connection part, in this embodiment, the sheath 3 is partially connected with the jacket 1, specifically, a wedge-shaped notch 33 is left at the non-connection part of the sheath 3 and the jacket 1, a horizontal straight line 331 is below the wedge-shaped notch 33, an oblique line 332 is above the wedge-shaped notch, the horizontal straight line 331 and the oblique line 332 form an included angle of 28 degrees, and the included angle is sharp and is also the included angle formed by the connection part of the sheath 3 and the jacket 1.

It should be noted that: the integrated outer sleeve 1, the jacket 3 and the needle head 5 are made of PP plastic with good low-temperature brittleness, the jacket of the integrated product made of the material is good in breaking effect, the broken plastic is dry and crisp, the strength of the jacket is increased under the condition that the thickness of the jacket wall is increased to about 1mm, meanwhile, the brittleness of the jacket is also increased, the plastic with good toughness is not suitable to be used as the raw material for production, the jacket of the integrated product made of the plastic has connecting ribs after being broken, and the color of the core rod is white and is the most preferred item.

In this embodiment, the needle 5 is further provided with an air passage 52, the air passage 52 extends from the needle tip side of the needle 5 to the direction of the outer sleeve 1, and two ports of the air passage are both communicated with the outside for balancing the air pressure inside and outside the bottle during dispensing. Specifically, the gas passage 52 is provided in the needle 5, the diameter of the gas passage thereof is 0.9mm, and the gas passage 52 is an "L" shaped passage having a circular cross section. In other alternative embodiments, the air passage 52 is of another structure, as shown in fig. 3 and 4, the air passage 52 is arranged on the sidewall of the needle 5 and is groove-shaped, the width of the groove-shaped passage 521 is 0.4mm, and the depth of the groove-shaped passage 521 is 0.6mm, and the notch edge is an arc-shaped surface 5211, which has the function that the needle 5 does not cut the plug when rotating.

In this embodiment, the blades of the core bar 2 are provided with scale marks for reverse measurement for displaying the volume of the liquid in the outer sleeve 1, and the blades are also provided with numbers 21 matched with the corresponding scale marks. The scale marks are gap strip-shaped hollow scale marks 22 or inner hollow strip-shaped scale marks 23, and the numbers 21 are in an inward concave shape, an outward convex shape or a hollow shape. The scale marks 22 or 23 and the number 21 may be provided on one side or both sides of the blade of the core bar 2.

The setting method of reverse hollow scale is that the outer sleeve 1, the core bar 2 and the piston 4 with the same specification and model are matched, so that the measuring reference line 41 (the first circle of outward convex circle line on the piston) on the piston 4 is superposed with the traditional printed 0 scale line on the outer sleeve 1, at this time, the top of the turned edge 11 of the outer sleeve 1 is taken as the reverse measuring reference line 111, the position of the reverse measuring reference line 111 corresponding to the leaf of the core bar 2 is set as the reverse 0 scale line, the distance between the position and the two ends of the core bar 2 is calculated, according to the size, a convex scale line model is arranged at the same position on the plane of the cavity of the two parting surfaces of the mould, the other scale lines are arranged in parallel in reverse analogy according to the set distance, the height of the model with the scale lines reserved is the same as the thickness of the leaf of the same parting surface, and the complete leaf and scale line model are formed after the two parting surfaces are assembled, the hollow scale marks are formed after injection molding. The model of the reversely marked hollow-out figure 21 is set in the same way as the scale marks. The difference between the setting method of the notch strip-shaped hollowed scale mark 22 and the inner hollowed strip-shaped scale mark 23 model lies in that the notch strip-shaped hollowed scale mark 22 model is close to the edge, i.e. the notch strip-shaped hollowed scale mark is vertically arranged inwards from the edge of the sheet of the die cavity, and the inner hollowed strip-shaped scale mark 23 is vertically and parallelly arranged inwards from the edge of the sheet of the die cavity by about 0.4mm, taking a 20mm medicine dispenser as an example, the length of the short scale mark is about 2mm, the length of the long scale mark is about 4mm, the width is 0.6-0.8 mm, the line width of the digital model is preferably 0.5-0.6, and the setting is under the long scale mark.

The utility model discloses medicine dispenser's application method: when the penicillin bottle stopper is a 2-fork 3-fork bottle stopper, the needle heads are all inserted into the bottle, then the bottle opening faces downwards, the core rod is slowly pulled to extract liquid medicine, and when the liquid medicine is not completely extracted in the bottle, the needle heads are rotationally pulled out by about a half and then are continuously extracted to be clean. When the bottle stopper is a flat mouth or 1 fork, the operation of extracting the liquid medicine can be carried out only by inserting half of the needle head.

When the liquid medicine is filled into the bottle, the needle head is inserted into the bottle firstly, then the liquid medicine is filled into the bottle, at the moment, the bottle opening needs to be upward, the filling speed is properly slowed down at the later stage of filling the liquid medicine, because the vapor bubbles can be generated in the liquid medicine bottle when the filling speed is too high, the liquid medicine in the liquid medicine bottle is gradually increased, and the phenomenon that a small amount of vapor bubbles and the liquid medicine are sprayed outwards from the gas channel easily occurs. Through such operation, the phenomenon that liquid medicine is sprayed outwards when liquid medicine is added is not generated or reduced, and the pressure in the bottle can be automatically adjusted through the air passage according to the force of pushing and pulling the core rod.

When needs location ration medicine adding, rotate the core bar earlier before liquid medicine pours into with the scale mark when adding medicine normal within range of sight, hold the medicine dispenser, then go with the thumb of both hands with spacing stainless steel wire card pressure entering corresponding fretwork scale mark inside, short scale is pressed to the extreme as far as, or inserts the scale mark the inside with little steel pipe, makes its both ends card realize location ration on the turn-up of overcoat.

When liquid medicine is added into a bottle, a rotary type inserting method can be used, namely, the medicine is inserted while rotating, retraction of the plastic needle head can be reduced, liquid medicine is injected again, actual operation is very simple, the medicine dispenser is used for simply pounding the tip part of the needle head on a table board or a penicillin bottle, the tip part of the needle head is changed into a flat head from a sharp head, and therefore when follow-up recovery is ensured, scratching and stabbing of recovery processing personnel are avoided, and classification and processing are very simple because a steel needle is not involved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A medicine dispenser comprises an outer sleeve and a core rod, wherein a piston is arranged at the top of the core rod; the medicine dispenser further comprises a sheath, the sheath and the outer sleeve are integrally arranged and partially connected, and the needle is enclosed in the sheath.

2. A dispenser according to claim 1, wherein the sheath is provided with a wedge-shaped gap at the point where it is not joined to the jacket.

3. The dispenser according to claim 2, wherein an avoiding notch for avoiding the needle when the sheath is broken off is arranged on one side of the sheath corresponding to the wedge-shaped notch.

4. The dispenser according to claim 3, wherein the top of the sheath is provided with an inclined surface, the inclined surface is inclined upwards along a direction horizontally departing from the avoidance gap, and the inclination angle is 30-33 degrees.

5. The dispenser according to claim 1, wherein the needle is further provided with a gas channel extending from the needle tip side of the needle to the outer sleeve direction, and two ports of the gas channel are communicated with the outside.

6. The dispenser of claim 5 wherein the gas passageway is an "L" shaped passageway disposed within the needle and having a circular cross-section.

7. The dispenser of claim 5 wherein the gas passageway is a slotted passageway provided in the sidewall of the needle.

8. A dispenser according to claim 1, wherein the core rod is provided with graduations for indicating the volume of liquid in the sheath, and numerals matching the corresponding graduations.

9. The medicine dispenser according to claim 8, wherein the scale lines are notched strip-shaped hollowed scale lines or inner hollowed strip-shaped scale lines; the numbers are concave, convex or hollow.