CN205796208U

CN205796208U - The extension tube structure of micro pump

Info

Publication number: CN205796208U
Application number: CN201620218626.4U
Authority: CN
Inventors: 贺成芳; 龙霞
Original assignee: LUZHOU TCM HOSPITAL
Current assignee: LUZHOU TCM HOSPITAL
Priority date: 2016-03-18
Filing date: 2016-03-18
Publication date: 2016-12-14
Anticipated expiration: 2026-03-18

Abstract

This utility model relates to medical equipment technical field, disclose the extension tube structure of a kind of micro pump, including the infusion needle (1) being sequentially communicated, extension tube (2), liquid storaging device, the interior caliber of extension tube (2) is equal with the interior caliber of infusion needle (1), use between extension tube (2) with infusion needle (1) and threaded, extension tube is made directly to be tightly connected with infusion needle, increase the steadiness that extension tube is connected with infusion needle, the medicinal liquid that in changing, caliber is stranded in extension tube with minimizing simultaneously, and then reduce the waste of medicine.

Description

The extension tube structure of micro pump

Technical field

This utility model relates to medical equipment technical field, is the extension tube structure of a kind of micro pump.

Background technology

Micro-injection pump can by medicine accurately, uniformly, constantly in infusion human body, the reasonably injection speed of regulating drug Degree, strictly controls drug dose, it is ensured that the valid density that medicine is optimal, for the medicine of the various urgent need of continuous infusion, as all kinds of Angiokinesis medicine, antiarrhythmic drug, electrolyte solution, anesthetics, the infusion etc. of pediatric medicament, to reduce complication Occurring, it is easy and simple to handle, can alleviate workload when rescuing critical patient, improves work efficiency, accurately, safely, effectively joins Close doctor to rescue.

Existing micro pump extension tube total length 1500mm, outer diameter tube 3mm, internal diameter of the pipeline about 0.25mm, internal diameter of the pipeline is more than The diameter of infusion needle, is directly sleeved on extension tube on infusion needle, makes to there is certain seam between extension tube and infusion needle Gap, air easily enters in extension tube from this gap, and extension tube is connected insecure with infusion needle, easily comes off, causes Liquid medicine contamination and waste.Further, first wanting air-out when by infusion of drug into the human body, air-out need to expend medicine about 8ml, the most often changes a drug waste about 8ml so that enters the medicine in patient body and does not reach doctor and expect expectation medicine Amount, thus affect the treatment.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of liquid waste that reduces the most does not affects infusion velocity The extension tube structure of micro pump.

The extension tube structure of the technical scheme is that micro pump of this utility model, including the transfusion needle being sequentially communicated Head, extension tube, liquid storaging device, the caliber of extension tube and the equal diameters of infusion needle, between extension tube and infusion needle Use threaded, make extension tube directly be tightly connected with infusion needle, increase the steadiness that extension tube is connected with infusion needle, The air that in changing, caliber is stranded in extension tube with minimizing simultaneously, and then reduce the waste of medicine.

Further, the liquid feeding end connecting bolt of infusion needle, there is through hole along bolt is axially arranged, the liquid outlet of extension tube Connect and have the nut mated with described bolt, while making infusion needle connect with extension tube, it is possible to so that liquid is from extension tube Interior inflow infusion needle.

Further, the aperture of described through hole is equal with the interior caliber of extension tube, it is ensured that liquid enters transfusion evenly Syringe needle.

The beneficial effects of the utility model are: use the extension tube of internal diameter of the pipeline and infusion needle equal diameters, and both Between use threaded, reduce the amount of the air entered in extension tube, and then the waste of medicine when decreasing air-out.

Accompanying drawing explanation

Fig. 1 is infusion needle of the present utility model and bolted schematic diagram.

Fig. 2 is the schematic diagram that extension tube of the present utility model is connected with nut.

Figure is labeled as: 1-infusion needle, 2-extension tube, 3-through hole, 4-bolt, 5-nut.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is further illustrated.

As shown in Figure 1, 2, the extension tube structure of micro pump of the present utility model, including the infusion needle 1 being sequentially communicated, prolong The equal diameters of long tube 2, liquid storaging device, the caliber of extension tube 2 and infusion needle 1, between extension tube 2 and infusion needle 1 Use threaded, during practical operation, only need to existing conventional micro pump extension tube 2 pipe diameter slightly be reduced connected The equal diameters of infusion needle 1, concrete can be set to 2mm by the external diameter of extension tube 2, and its internal diameter is set to 0.13mm, extends Pipe 2 pipe range does not become 1500mm, then liquid sequentially passes through extension tube 2 from liquid storaging device, and infusion needle 1 infusion enters in human body Time, aerofluxus need to expend medicine less than 4ml, both decrease drug waste, medication can be made again more accurate, the liquid feeding end of infusion needle 1 Connecting bolt 4, has through hole 3 along bolt 4 is axially arranged, and the liquid outlet of extension tube 2 connects the nut 5 mated with described bolt 4, Liquid can be made to flow into infusion needle from extension tube, be simultaneously connected with conveniently, the aperture of described through hole 3 and the interior caliber of extension tube 2 Equal, it is ensured that liquid enters syringe needle evenly, it is simple to observe and ensure that curative effect.

Claims

1. the extension tube structure of micro pump, including the infusion needle (1) being sequentially communicated, extension tube (2), liquid storaging device, its Be characterised by: the interior caliber of extension tube (2) is equal with the interior caliber of infusion needle (1), extension tube (2) and infusion needle (1) it Between use threaded.

2. according to the extension tube structure of the micro pump described in claim 1, it is characterised in that: the liquid feeding end of infusion needle (1) is even Connecting bolt (4), has through hole (3) along bolt (4) is axially arranged, and the liquid outlet of extension tube (2) connects to have and mates with described bolt (4) Nut (5).

3. according to the extension tube structure of the micro pump described in claim 2, it is characterised in that: the aperture of described through hole (3) with prolong The interior caliber of long tube (2) is equal.