CN2209532Y

CN2209532Y - Electric-driving fluid expeller for intravenous injection

Info

Publication number: CN2209532Y
Application number: CN 94244847
Authority: CN
Inventors: 纪文龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-31
Filing date: 1994-12-31
Publication date: 1995-10-11
Anticipated expiration: 2004-12-31

Abstract

The utility model relates to an electric-driving fluid expeller for intravenous injection, belonging to the field of medical care. The utility model is composed of a casing, an injector, an electrical machine, a change gear set, a threaded rod, a battery box, a control circuit and a warning circuit. The threaded rod is longitudinally moved in rotation under the drive of the electric machine to impel an injector piston to complete injection. The utility model has the advantages of simple structure, low energy consumption, low cost, stable and adjustable injection speed, wide application environment and convenient push and carryover. The electric-driving fluid expeller for the intravenous injection is an ideal injection medical utensil for lightening a nurse's labor intensity and enhancing work efficiency.

Description

Electric-driving fluid expeller for intravenous injection

This utility model relates to a kind of electronic liquid extruding device of intravenous injection of medical field.

Medical personnel often need to inject the medicinal liquid of heavy dose of (mostly more than 40 milliliters) to patient, sometimes the liquor strength height is thick, when requiring must speed limit slowly to inject, a nurse once can only single-mindedly give a patient injection in the past, once took more than ten minutes, tried hard to recommend pressure with finger entirely during injection, it is difficult stable to annotate speed, after once having injected, hands acid arm fiber crops, not only painstakingly but also time-consuming.

It is stable that the purpose of this utility model provides a kind of notes speed, and speed is adjustable, replaces the electronic liquid extruding device of intravenous injection of manual feed medicinal liquid.

The purpose of this utility model is to realize like this, the electronic liquid extruding device of a kind of intravenous injection, it is characterized in that constituting by housing, syringe, motor, speed changing transmission gear, screw rod, battery case, control and warning circuit, syringe and screw rod place a side of housing, be provided with the garden dish between one end of screw rod and the piston of syringe, be rotary with the setscrew nut that is fixed on two side bodies on the one end screw rod of garden dish, battery case, motor, control and warning circuit place the opposite side of housing, and the rotating shaft of motor drives the screw rod rotation through speed changing transmission gear; Control and warning circuit be by capacitor C 1, C2, resistance R 1-R5, diode D1, D2, Y and control contact switch K formation; The empty tube of syringe protuberance both sides housing wall is provided with bayonet socket; Be fixed with contact switch on the one side body wall at syringe piston two ends; Be equipped with one deck soft material between garden dish and the syringe piston; Behind the source, driven by motor speed change transmitting gear makes screw rod rotation reach, thereby slowly intravenous injection is finished in the motion of pushing syringe piston, and when the garden dish was run into contact switch, warning circuit was connected, light emitting diode and send sound and light alarm simultaneously.

This utility model is simple in structure, power consumption less, cost is low, it is stable to annotate speed, speed is adjustable, suitable environment is wide, is easy to carry, and can alleviate nurse's labor intensity and improve work efficiency.

Accompanying drawing 1 is this utility model structural representation;

Accompanying drawing 2 is this utility model control and warning circuit figure.

In the accompanying drawing: the 1st, housing, the 2nd, empty tube, the 3rd, bayonet socket, the 4th, piston, the 5th, garden dish, the 6th, setscrew nut, the 7th, change-speed gearing group, the 8th, screw rod, the 9th, control and warning box, the 10th, motor, the 11st, battery case, the 12nd, nipple, the 13rd, scalp injection needle, the 14th, contact switch.

Further specify this utility model with accompanying drawing in conjunction with the embodiments, housing 1 separated into two parts made from poly (methyl methacrylate) plate, by empty tube 2, the side that syringe that piston 4 constitutes and screw rod 8 place housing 1, welding fixedly coils 5 in the garden on the screw rod 8 of nearly piston handle one end, be equipped with soft material between garden dish 5 and the piston handle, for preventing screw rod 8 swing at the volley, the garden is coiled to be rotary with on the screw rod of an end and is fixed on two setscrew nuts 6 on the housing, be lined with around the empty tube 2 on two side bodies of the empty tube of soft material 2 projections a bayonet socket 3 is arranged, can prevent moving axially of empty tube 2, be fixed with contact switch 14 on the housing of nearly bayonet socket 3 one sides, battery case 11, motor 10, control and warning box 9 place the opposite side of housing 1, the rotating shaft of motor 10 drives change-speed gearing group 7, screw rod 8 is through a gear of change-speed gearing group 7, scalp injection needle 13 is enclosed within on the nipple 12 and places in the cone tank of

housing

1,10 of energized rear motors rotate and through change-speed gearing group 7 make screw rod 8 reaches or after move.

Claims

1, the electronic liquid extruding device of a kind of intravenous injection, it is characterized in that constituting by housing, syringe, motor, speed changing transmission gear screw rod, battery case, control and warning circuit, syringe and screw rod place a side of housing, be provided with the garden dish between the piston of one end of screw rod and notes device, the garden is coiled on the screw rod of an end and is rotary with the setscrew nut that is fixed on two side bodies, battery case, motor, control and warning circuit place the opposite side of housing, and the rotating shaft of motor drives the screw rod rotation through speed changing transmission gear.

2, the electronic liquid extruding device of intravenous injection according to claim 1 is characterized in that control and warning circuit by capacitor C 1, C2, resistance R 1-R5, and diode D1, D2, Y and control contact switch K constitute.

3, the electronic liquid extruding device of intravenous injection according to claim 1 is characterized in that the empty tube of syringe protuberance both sides housing wall is provided with bayonet socket.

4, the electronic liquid extruding device of intravenous injection according to claim 1 is characterized in that being fixed with contact switch on the side body wall at syringe piston stroke two ends.

5, the electronic liquid extruding device of intravenous injection according to claim 1 is characterized in that being equipped with one deck soft material between garden dish and the syringe piston.

6, the electronic liquid extruding device of intravenous injection according to claim 1 is characterized in that syringe nipple places a level of housing in cone tank.