CN204261125U

CN204261125U - A kind of Jing Pei center Special dispensing device

Info

Publication number: CN204261125U
Application number: CN201420548328.2U
Authority: CN
Inventors: 吴彩芳; 吕开广
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-09-23
Filing date: 2014-09-23
Publication date: 2015-04-15
Anticipated expiration: 2024-09-23

Abstract

A kind of Jing Pei center Special dispensing device, promote according to national intravenous administration centralized configuration center, should its demand and the Special dispensing product that designs, be made up of special needle for dispensing medicine and special injection with low resistance, convenient when needle for dispensing medicine solves cillin bottle and the configuration of ampoule quasi drugs, pollute and the problem of foreign body, syringe solves existing injection with low resistance, and easily overflow plug water problem in inefficacy rear end.

Description

A kind of Jing Pei center Special dispensing device

Technical field

A kind of Jing Pei center Special dispensing device that this utility model provides, belongs to medical instruments field, particularly relates to infusion apparatus.

Background technology

The syringe that existing infusion mode uses, needle design is unreasonable, syringe rubber plug resistance is excessive, the injection with low resistance that market occurs, can not lose efficacy by good seal, time unloaded, resistance is low, and during loading, resistance raises, and does not have the effect of lower resistance, load the syringe that resistance does not raise, structurally reduce the magnitude of interference of plug, reduce resistance, along with the continuity of time after dispatching from the factory, easily there is failure phenomenon in plug, cillin bottle packaging compounding medicine, due to the plug of repeatedly puncture cillin bottle and large liquid, easily causes leakage and particle contamination; The compounding medicine of ampoule packaging, use conventional needle, cannot once aspirate, the glass granules opening ampoule generation enters medicinal liquid, patient is caused to injure unavoidably all the life, in the application of publication number CN202086793U, disclose a kind of needle for dispensing medicine define needle tubing to the length of needle stand and side opening to the distance of needle stand, be intended to solve cillin bottle and make up a prescription aspiration procedure no longer back stitching, utilize the pressure in bottle to be got rid of by medicinal liquid clean; But the problem do not considered is: 1, the size of pin hole and the relative position of pin hole on needle tubing and the change being engaged in liquid stream in container of drug bottle, on the impact of the powder medicine dissolution velocity of cillin bottle packaging; 2, the inconvenience caused is aspirated to ampoule class packaging water aqua type medicine, and avoiding of glass granules pollution opened by ampoule; 3, for this product cost of consumption class consumptive material in enormous quantities of needle tubing and the impact of production technology, the length of needle tubing and the huge to Product Process cost impact of pin hole position, even cannot produce, and the cost of material of this series products is compared with process costs and substantially can be ignored, and therefore likely cannot reduce costs and significantly improve on the contrary.Along with popularizing of national intravenous administration centralized configuration center system, the centralization of making up a prescription brings Special dispensing equipment and equipment tight demand, equipment makes up a prescription and easily completes the compounding medicine of simple prescription in enormous quantities, for complicated prescription and fragmentary compounding medicine, then configuration cycle is long and cost is high, need by the time because equipment makes up a prescription, therefore the application provides a kind of dispenser being more suitable for Jing Pei center, as a quiet part of joining solution organic whole.

Summary of the invention

The application provides a kind of Jing Pei center Special dispensing device, takes into full account the deficiencies in the prior art, the technical scheme proposed in conjunction with the complexity of pharmaceutical packing, prescription and the limitation of production technology.Dispenser by syringe needle and make up a prescription injection its form, syringe needle is made up of needle tubing and needle stand, needle tubing is side-hole needle, dispensing injector with pin is made up of urceolus, push rod and core print, the needle point of its needle tubing is L1:L2=1:1 to the distance L1 at side opening center and side opening center to the proportionate relationship of the distance L2 of needle stand, or L1:L2=9:10, and its tolerance is ± 0.5mm, the length L5 of side opening and the pass of needle tubing diameter D are L5=2.5D, and its tolerance is ± 0.2mm, needle point is 8 ± 0.5mm, 9 ± 0.5mm, 10 ± 0.5mm to the distance L1 value at side opening center, the total length L of needle tubing is not less than 22mm, and is not more than 30mm, the setting of this relation, consider the specification of drug bottle length and diameter, syringe is released pin hole liquid outlet quantity and flow stream velocity and forms angle of incidence, the type of flow of liquid in drug bottle, powder medicine is washed away to the dynamics of dispersion, the dimensions of ampoule bottle bottleneck and shape, the surface tension of liquid is to ampoule packaging medicinal liquid exhaustion degree and ampoule is opened to the composite factors such as the suction degree that produces glass chip and set, value 8 ± the 0.5mm of the corresponding L1 of L1:L2=1:1, 9 ± 0.5mm, value 9 ± the 0.5mm of the corresponding L1 of L1:L2=9:10, 10 ± 0.5mm, coordinate the length of pin hole and the relation of diameter, the drug bottle being directed to different-diameter and the length be applicable to separately has good disorderly eddy current, be conducive to the dispersion accelerate dissolution of medicine, meet pin hole in ampoule bottle medicinal liquid aspiration procedure simultaneously and leave the suitable distance of bottle wall, glass chip is made to leave in bottle, the surface tension of liquid is utilized but medicinal liquid to be aspirated clean requirement, can directly aspirate totally for the thicker glue lid on cillin bottle, thinner Jiao Gai some angles that tilts also can reach same effect under capillary effect, the syringe needle feature of the application meets making up a prescription of cillin bottle powder and ampoule water preparation simultaneously, play the effect raising the efficiency and prevent pollution treatment from contaminating, side opening relative position, hole cooperation that is long and needle tubing length solves manufacturing process problem, utilize existing process conditions can low cost complete manufacture in enormous quantities, the cooperation of core print wide arc gap is assembled on push rod, core print is assembled to core print by plug and is configured to, plug arranges a sealing ring, core print erection has two annular muscle that can slide along outer tube inner wall, the annular muscle of core print frame ensures that plug does not occur tilting when sliding in urceolus, the wide arc gap of push rod coordinates, leave move place, the impact of the inclination of push rod in operating process on core print is made to be reduced to minimum, plug can reduce resistance when the normal magnitude of interference can ensure that again the magnitude of interference enough and not lost efficacy, no matter there is no-load, the lower resistance that plug is real relative to the constant realization of frictional force size of urceolus, reduce the labor intensity made up a prescription in process.

Accompanying drawing illustrates:

A kind of Jing Pei center of Fig. 1 Special dispensing device assembling schematic diagram

A kind of form core print assembling of Fig. 2 schematic diagram

Fig. 3 separately plants form core print assembling schematic diagram

Fig. 4 plants form core print assembling schematic diagram again

Fig. 5 plants form core print assembling schematic diagram again

Fig. 6 syringe needle schematic diagram

Fig. 7 ampoule medicine makes up a prescription schematic diagram

Fig. 8 cillin bottle medicine makes up a prescription schematic diagram

In figure

1 needle tubing, 11 side openings, 2 needle stands, 3 plugs, 31 plug sealing rings, 32 plug screens, 4 core print framves, 41, 42 core print frame annular muscle, 43 core print framves are to push rod screens, 44 core print frame part I, 45 core print frame part II, 5 push rods, 51 push rod screens, 6 urceolus, 7 ampoule medicament bottles, 8 chipss of glass, 9 cillin bottle medicine bottles, L1 needle point is to the distance at side opening center, L2 side opening center is to the distance of needle stand, L3 needle point to side opening center in the distance that drug bottle wall projects, L4 needle tubing root to side opening center in the distance that drug bottle wall projects, the hole of L5 side opening is long, the diameter of D needle tubing, E liquid stream injection direction.

Detailed description of the invention:

The structure of core print is not limited to form disclosed in embodiment, can have the distortion of various ways, all at the row of the protection of claim.

Embodiment 1:

Needle tubing 1 bonding is arranged on needle stand 2 and forms syringe needle, syringe needle is installed in the female Luer of syringe urceolus 6, the front end that cap-like structure plug 3 is installed to core print frame 4 by plug screens 32 forms core print, push rod 5 is installed to core print frame to push rod screens 43 position by push rod screens 51, be placed into the inner chamber of urceolus 6, form a complete special medicine dissolving device in Jing Pei center, wherein on needle tubing, needle point is L1:L2=1:1 to the distance L1 at side opening center and side opening center to the proportionate relationship of the distance L2 of needle stand, or L1:L2=9:10, its tolerance is ± 0.5mm, the length L5 of side opening and the pass of needle tubing diameter D are L5=2.5D, its tolerance is ± 0.2mm, needle point is 8 ± 0.5mm, 9 ± 0.5mm, 10 ± 0.5mm to the distance L1 value at side opening center, the total length L of needle tubing is not less than 22mm, and is not more than 30mm, when the medicine packed ampoule makes up a prescription, L1:L2=L3:L4 can be found out by Fig. 7, the middle chips of glass 8 that the distance of L4 is greater than ampoule bottle precipitates position, according to the specification of ampoule bottle and the capillary data demand of water, surface tension is on the impact of chips of glass, and chips of glass, at ampoule bottle wall built-up precipitation status, selects needle tubing and the angle of bottle wall and the relative position relation of pin hole, ensure to exhaust in medicinal liquid aspiration procedure medicinal liquid, and leave the chips of glass of precipitation, certainly, the selection of design parameter also will consider the dissolving preparation of cillin bottle packaging medicine, illustrated by Fig. 8, data selection liquid stream according to drug bottle diameter and length specification sprays angle, the length L5 of pin hole and the relation of needle tubing diameter D is determined in the scope of statistics of syringe flow stream velocity, simultaneously pin hole affects the formation of cillin bottle inner liquid medicine eddy current to the distance of needle point, whether the form of eddy current contributes to smashing medicated powder group, dispersion medicated powder, incorrect flow regime can make medicated powder agglomerating, be unfavorable for dissolving, consider that medicinal liquid pumps the value that relation selects L1 simultaneously, the surface tension of medicinal liquid is utilized to pump medicinal liquid, consider equipment clamping in processing technique, molding, go-on-go, the problems such as cleaning, at above-mentioned relation L1:L2, choose suitable value in the scope of L1, L5, L, meet the requirement that the requirement of making up a prescription meets production technology simultaneously, plug 3 on syringe core print changes single sealing ring into by many sealing rings and uses the normal magnitude of interference, to reduce the frictional force of urceolus 6 and plug 3, increase core print frame 4 simultaneously, core print frame 4 arranges two annular muscle 41, 42, annular muscle slides along the inwall of urceolus 6, to keep the rectilinear motion not run-off the straight of plug 3, the connection of push rod 5 and core print adopts wide arc gap fit system, ensure that the impact of inclination on core print of push rod is minimum, this design realizes the lower resistance of whole process of making up a prescription, produce the plug inefficacy phenomenon of leakage caused because the push rod in the continuity of time or operating process tilts after dispatching from the factory to occur with preventing plug.Such Jing Pei center Special dispensing device meets the requirement that medicinal liquid dissolves configuration and reduces labor intensity, can ensure that again production technology is simple, reduce costs.

Embodiment 2

As shown in Figure 3, the front end having the plug 3 of circulus to be installed to core print frame 4 by plug screens 32 forms core print, other parts are identical with embodiment 1, this structure can reduce the hardness of Rubber plug material, increase its elasticity when not increasing friction force, increase the magnitude of interference, ensure the sealing property of sealing ring.

Embodiment 3

As shown in Figure 4, core print frame 4 is by two part core print frame part I44, core print frame part II45 is formed, plug 3 is the circulus of hollow or the hollow annular structure of being out of shape as shown in Figure 5, be installed on core print frame, other structures are identical with embodiment 1, this structure can shorten the length of core print, annular muscle simultaneously on core print frame ensures core print not run-off the straight in the process of making up a prescription, dispenser entirety is shortened, even if Rubber plug material does not change and can increase the magnitude of interference yet and not increase frictional force simultaneously, not only ensure sealing property but also lower resistance can be ensured, make dispenser short and small easy to use, reduce costs.

Claims

1. a Zhong Jingpei center Special dispensing device, by syringe needle and make up a prescription injection its form, syringe needle is made up of needle tubing and needle stand, needle tubing is side-hole needle, and dispensing injector with pin is made up of urceolus, push rod and core print, it is characterized in that: the needle point of needle tubing is L1:L2=1:1 to the distance L1 at side opening center and side opening center to the proportionate relationship of the distance L2 of needle stand, or L1:L2=9:10, its tolerance is ± 0.5mm, and the length L5 of side opening and the pass of needle tubing diameter D are L5=2.5D, and its tolerance is ± 0.2mm; The cooperation of core print wide arc gap is assembled on push rod, and core print is assembled to core print by plug and is configured to, and plug arranges a sealing ring, and core print erection has two annular muscle slided along outer tube inner wall.

2. a kind of Jing Pei center according to claim 1 Special dispensing device, is characterized in that: needle point is 8 ± 0.5mm, 9 ± 0.5mm, 10 ± 0.5mm to the distance L1 value at side opening center.

3. a kind of Jing Pei center according to claim 1 Special dispensing device, is characterized in that: the total length L of needle tubing is not less than 22mm and is not more than 30mm.

4. a kind of Jing Pei center according to claim 1 Special dispensing device, is characterized in that: the structure of the respective outer side edges core print frame of plug can be the circulus of cap-like structure or circulus or hollow.