CN1094314A

CN1094314A - Spring-switch type automatic stop liquid alarm infusion system

Info

Publication number: CN1094314A
Application number: CN 93105101
Authority: CN
Inventors: 易宏举
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-30
Filing date: 1993-04-30
Publication date: 1994-11-02

Abstract

Spring-switch type automatic stop liquid alarm infusion system, be to install a cantilever lever on drip stand column top, adorn a hook under the bar, the column bottom is installed support arm successively, display, warner and supply socket, the electric magnet of display and warner and electromagnetic clamp is connected in parallel on the lead of drip stand inside, snap switch is hung on the hook of cantilever lever, lead in its lead and the drip stand joins, constitute the electric control circuit of this device, transfusion device is hung the switching of just being controlled electromagnetic clamp under snap switch by the folding of snap switch, to reach the purpose of automatic stop liquid and alarm.

Description

Spring-switch type automatic stop liquid alarm infusion system

The present invention is a kind of infusion set of infusing and alarming of can stopping automatically, is specially adapted to medical transfusion, replaces manually monitoring and stops the liquid operation, belongs to fluid automatic control technology field.

The medical Transfusion device structure that can see at home at present is fairly simple, stops hydraulic control system and is difficult to grasp, and must manually monitor when infusing, and touring attention is checked, even the nursing staff checks meticulously malpractice takes place unavoidably also, and labor intensity is big.Many in the world countries adopt the work of automatic control technology infusion monitoring, for example, European patent EP-225158 " transfusion system that has compressor pump " is to utilize in the infusion process, when the pressure differential that produces in tube for transfusion reaches a set-point, trigger alarm and stop transfusion by the pressure-strain instrument; British patent GB-2063071 " medical delivery system " is that the system of a mensuration of assembling hydraulic pressure makes the pressure-strain instrument start electromagnetic switch equally, sends warning signal and stops transfusion, and these system's complex structures, the cost height is difficult for applying.

The purpose of this invention is to provide a kind of in infusion process, when liquid is reduced to safe liquid level, can automatic stop liquid, alarm and cost transfusion system low, easy to use.

The present invention is by drip stand, electromagnetic clamp, and snap switch and transfusion device four parts are formed.Cantilever lever of drip stand column top installing, a hook is installed in the below of cantilever rod end, in order to hanger spring switch and transfusion device, the place support arm of installation that is higher than the infusion monitoring pipe on column is used for supporting transfusion catheter, display, warner and supply socket are housed under it, lead penetrates drip stand, and the electric magnet of display, warner and electromagnetic clamp is connected in parallel on this lead.Two folder thighs of electromagnetic clamp are connected by intermediate connecting shaft, one of suit opens and closes spring on the connecting axle, install the pair of metal hook at a folder burst handle middle part, one of them hook is installed on the folder thigh with bearing pin, its afterbody becomes yoke type and corresponding with the electric magnet that is installed in this folder burst back, constitute electromagnetic switch, the peristome of electromagnetic clamp is provided with a pince-nez, in order to prevent that pressing from both sides a mouthful interior conduit deviates from.Snap switch is to adorn a spring in the housing, the hook at two ends stretches out from the housing two ends, and open one in housing sidewall and indicate graduated chute, the control mark and the catalyst with the telescopic spring motion that can be set in arbitrary position on the groove is housed in the groove, the external end head of catalyst is corresponding with the control mark, inner termination is connected with the shell inner spring, junction point has been taked insulation measures, the control target moves or fixes and finished by its trip bolt, the control mark is connected with two binding posts of case top respectively with the lead of catalyst by enclosure interior, and with connect at the binding post place from two leads in the drip stand, form a closed circuit, this snap switch upper end is suspended on the hook of drip stand cantilever end, is hanging transfusion device on the carbine of lower end.Transfusion device is a general infusion set, the upper end is hooked on the snap switch, and the lower end is connecting tube for transfusion and monitor tube, and the partial holder of tube for transfusion is passed the electromagnetism pince-nez and infused on support arm, control the switching of electromagnetic clamp by the automatic folding of snap switch, reach and stop the purpose of infusing and alarming automatically.

Enumerate embodiments of the invention below in conjunction with accompanying drawing:

Fig. 1 is a rough package drawing of the present invention.

Fig. 2 is the organigram of snap switch.

Fig. 3 is control mark, the assembling sketch map of catalyst in chute of snap switch.

Fig. 4 is the structural representation of electromagnetic clamp.

Among the figure: 1-cantilever lever, 2-hook, 3-snap switch, 4-medicine bottle, the 5-conduit, 6-support arm, 7-monitor tube, 8-electromagnetic clamp, the 9-column, 10-frame inside conductor, 11-display, the 12-warner, 13-electrical socket, 14-binding post, 15-spring inside conductor, the 16-spring, 17-controls mark, the 18-catalyst, 19-chute, 20-housing, 21-pince-nez, 22-press from both sides thigh, 23-connecting axle, 24-presss from both sides spring, 25-binding post, 26-metal hanger, the 27-hold-down screw, 28-binding post, 29-electric magnet, the 30-yoke, 31-binding post, 32-bearing pin.

Fig. 5 is a circuit diagram.

Among the figure: A-snap switch, B-electromagnetic switch, 11-display, 12-warner.

At first snap switch 3 is suspended on the hook 2 of cantilever lever 1, again the frame inside conductor of drip stand is connected on the binding post 14 of snap switch 3, form a closed circuit, bottom at snap switch 3 hangs up medicine bottle 4 then, connect conduit 5 and monitor tube 7, after conduit 5 partial holders are on support arm 6, with metal hanger 26 engagements of electromagnetic clamp, conduit 5 is inserted in the pince-nez 21, in order to liquid communication.Then according to hanging medicine weight spring 16 positions of tensile calibrating length on chute 19 are adjusted control mark 17 and it is fixed, external power supply just can begin transfusion work after inserting electrical socket 13.At this moment, because the weight of medicine bottle 4 pulls to the below to catalyst 18, can not contact with control mark 17, be that snap switch A disconnects, working properly the carrying out of infusing is along with its extension of minimizing gradually of medicinal liquid is heavy more and more lighter, spring 16 shrinks, affect catalyst 18 to reset, when the bottle herb liquid reaches safe liquid level, just contact with control mark 17, it is snap switch A closure, connect circuit, this moment, display 11 had light to show that warner 12 sends audio alarm.Electric current is by electromagnetic switch B simultaneously, electric magnet 29 is with yoke 30 adhesives, because the leverage that yoke 30 rotates around bearing pin 32, two briar tooths of metal hanger 26 are thrown off, two of alligator clamp folders strands 22 are flicked rapidly by spring 24, the spring mouth is closed immediately stuck with tube for transfusion 5, just stops transfusion automatically and cuts off circuit.Even can not in time carry out transfusion nursing,, guarantee the safety of transfusion nursing work because the holding function of alligator clamp can not make residue medicinal liquid or air enter human body along conduit yet.

Claims

1, a kind of by drip stand, electromagnetic clamp, the spring-switch type automatic stop liquid alarm infusion system that snap switch and transfusion device constitute, it is characterized in that: a cantilever lever is installed on drip stand column top, a hook is installed in the below of cantilever rod end, a support arm is adorned in the place that is higher than the infusion monitoring pipe on column, display down is housed, warner and supply socket, the electric magnet of display and warner and electromagnetic clamp is connected in parallel on the lead that penetrates drip stand inside, snap switch is hung on the hook of cantilever lever, the interior lead of lead in the snap switch and drip stand connects mutually, and transfusion device then is suspended on the lower end of snap switch.

2, automatic stop alarm infusion system according to claim 1, it is characterized in that: snap switch is to adorn a spring in housing, the hook at two ends stretches out from the housing two ends, and open one in housing sidewall and indicate graduated chute, the control mark and the catalyst with the telescopic spring motion that can be set in arbitrary position on the groove is housed in the groove, the external end head of catalyst is corresponding with the control mark, inner termination and the insulation of shell inner spring are joined, the control target moves or fixes and finished by its trip bolt, control mark and catalyst join with two binding posts of case top respectively with the lead of enclosure interior, and with connect at the binding post place from two leads in the drip stand, constitute this system electric control loop.