CN1058150A

CN1058150A - Medical pneumatic injector

Info

Publication number: CN1058150A
Application number: CN 90104742
Authority: CN
Inventors: 冯建光
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-07-14
Filing date: 1990-07-14
Publication date: 1992-01-29

Abstract

The present invention relates to medical apparatus technique, particularly medical pneumatic injector.Mainly by syringe needle, tube for transfusion, Gu bottle device, pneumatic tube, air pressure glueballs (jar), the relief valve ball float, compositions such as inserting needle device, wherein solid bottle device is by little funnel female cap, seal washer, compositions such as elastic, little infundibulate has covered and syringe needle, tube for transfusion joint that tube for transfusion communicates and the pressure pipe joint that is connected with pneumatic tube, normal injection bottle bottleneck engages hermetically and is tightly suppressed and fix by elastic with little funnel female cap, bottleneck vertically downward, the air pressure glueballs (jar) that is connected with pneumatic tube presses gas through pneumatic tube, Gu bottle device, enter injection bottle, medicinal liquid is pressed through tube for transfusion, syringe needle and inject human body.

Description

Medical pneumatic injector

The present invention relates to medical apparatus technique, particularly a kind of medical pneumatic injector.

Existing syringe mainly contains two classes, and a class is an ordinary syringe, is made up of syringe needle, glass syringe and piston push rod, need first aspiration medicinal liquid, nurse's hands often to contact patient skin during use, can not be simultaneously give many people's injections, not only inconvenience but also unhygienic was made then cost height of disposable syringe.Another kind of is the garter that is used for venous transfusion, need be hung in the use on the high garter frame, and it is just large and small to be unfavorable for that patient gets up.

The objective of the invention is to overcome the deficiency of above-mentioned existing injector technology, and a kind of easy to use, health is provided, can realizes injecting semi-automatic medical pneumatic injector.

The method that realizes the object of the invention is provided by following principle, measure, accompanying drawing, structure and working condition thereof.

Principle of the present invention and measure: syringe is made up of syringe needle, tube for transfusion, solid bottle device, injection bottle, relief valve ball float, pneumatic tube, intake valve, bacteria filter, air pressure glueballs (jar) and inserting needle device etc.One end of tube for transfusion connects syringe needle, and the other end connects solid bottle device, and solid bottle device connects the injection bottle of opening, and connection pneumatic tube, intake valve, air pressure valve and bacteria filter, and pneumatic tube connects air pressure glueballs (jar) again, thereby is linked to be unified passage hermetically.The relief valve ball float is placed in the injection bottle, and the bottleneck of injection bottle vertically downward during injection.The inserting needle device is a kind of spring launch mechanism, is made up of body, push pin axle, spring, switch, folder etc., can fix, plug and unplug syringe needle.Press the inserting needle switch during injection, syringe needle just inserts patient's muscle automatically, the repress moulding ball of taking offence, air pressure just through pneumatic tube, a solid bottle device, enter in the injection bottle, medicinal liquid is pressed through tube for transfusion and syringe needle by enough air pressure simultaneously and is injected patient's muscle, press after finishing and pull out the pin switch, the inserting needle device is just extracted syringe needle automatically.

A plurality of injecting units of being made up of syringe needle, tube for transfusion, solid bottle device, inserting needle device can be connected with an atmospheric pressure jar with a pneumatic tube with arranging, be assembled into semi-automatic synchronous pneumatic injector, be equipped with into, pull out the pin main switch on it, inject for a plurality of patients synchronously.Can also be mounted to semi-automatic synchronous pneumatic injector, distribute injection synchronously for each injecting unit by a big injection bottle and a separating tube, and can inject synchronously with medicinal liquid function.

Manufactured materials of the present invention and technology can adopt the material and the technology of existing medical apparatus.

Fig. 1 is the pneumatic injector embodiment partial cutaway schematic that proposes according to invention.

Fig. 2 is the profile of solid bottle device parts of the present invention.

Fig. 3 is the sketch map of cylinder type liquid speed display components of the present invention.

Fig. 4 is the sketch map of semi-automatic synchronous pneumatic injector embodiment of the present invention.

Fig. 5 is the sketch map with semi-automatic synchronous pneumatic injector embodiment of packing medicinal liquid function of the present invention.

Describe details of the present invention and working condition in detail below in conjunction with above-mentioned accompanying drawing.

The present invention is made up of the syringe needle 1 of working in coordination, tube for transfusion 2, solid bottle device 3, injection bottle 12, (or cylinder type liquid speed display 16), relief valve ball float 15, pneumatic tube 4, the valve 18 of calming the anger, intake valve 17, bacteria filter 19, baroswitch 35, air pressure glueballs (jar) 5, air inlet needle 6 each parts.

Gu bottle device 3 is made up of the little funnel female cap 7, seal washer 8, tube for transfusion joint 9, pressure pipe joint 10, elastic 11, tabletting 13, the suspension hook 14 that cooperatively interact.Tube for transfusion joint 9 and pressure pipe joint 10 are fixed on the little funnel female cap 7 simultaneously, respectively there is the little funnel in an aperture and the funnel female cap 7 to communicate, the radius of little funnel female cap 7 is greater than the maximum radius of injection bottleneck, and the radius of little funnel is then less than the least radius of injection bottleneck; The interior radius of circle of seal washer 8 is less than the radius of injection bottleneck, and injection bottle 12 is the injection bottle of existing common injection, bottleneck sever require smooth; Little funnel female cap 7 and seal washer 8 can cooperate hermetically with the bottleneck of injection bottle 12, and elastic 11 and tabletting 13 are pressed in injection bottle 12 on the little funnel female cap 7, and suspension hook 14 is fixed on the tabletting 13, injection bottle 12 can be hung with being inverted.The manufactured materials of little funnel female cap 7 is medical grade rubber or medical non-toxic plastic or rustless steel etc.Relief valve ball float 15 is put into injection bottle 12, and its effect is the little funnel that can stop up automatically after injection is finished by injection in the bottle in the little funnel female cap 7, makes gas can not enter tube for transfusion 2 and syringe needle 1, so that in the human body.Gu the tube for transfusion joint 9 of bottle on the device 3 with have the tube for transfusion 2 that the medical silicon rubber of usefulness that crushing resistance, a termination connect syringe needle 1 makes and be connected, or can directly be connected with existing common syringe needle, maybe can make the syringe needle shape and be used as the syringe needle use, pressure pipe joint 10 then is connected with pneumatic tube 4.The valve 18 of calming the anger, intake valve 17, bacteria filter 19(are housed on the pneumatic tube 4 can be made at pneumatic tube 4 with clean cotton plug), baroswitch 35, its other end is connecting air pressure glueballs (jar) 5; Pneumatic tube 4, the valve 18 of calming the anger, intake valve 17 gentle moulding balls 5 can adopt the same structure parts on the existing sphygomanometer.The relief valve ball float is a microballoon.

Inserting needle device 6 by the body 20 that cooperatively interacts, the axle 21 of pushing pin, syringe needle folder 22, inserting needle spring 23, pull out needle spring 24, inserting needle switch 25, pull out pin switch 26, push rod 27, pipe covers 28,

fixation clamp

29 and 30, and 32(2 on syringe folder), boosting bar 33, boosting spring 34 compositions.Wherein,

fixation clamp

29,30 and syringe folder 32 are separately fixed on the body 20, syringe needle folder 22 is fixed on an end of the axle 21 of pushing pin, one end of inserting needle spring 23 is fixed on the axle 21 of pushing pin, the elastic force that pulls out needle spring 24 is greater than inserting needle spring 23, and axle 21 length that move that guarantee to push pin are greater than depth of needle, in the time of in working order, inserting needle spring 23 and pull out the distance at interval of corresponding end between the needle spring 24 desired depth of needle when equaling to inject, an end of inserting needle spring 23 start and are pressed on the corresponding end of pulling out needle spring 24 after finishing.One end of boosting spring 34 is fixed on the syringe folder 32, the other end is fixed on the boosting bar 33, there is one to be used for the top flat 45 that roof pressure piston push rod 44 on the boosting bar 33, and guarantee distance that the piston push rod 44 on the syringe-type inflator 31 moves greater than 5 centimetres, the hand push power when its elastic force is injected greater than ordinary syringe.A guiding aperture is respectively opened at body 20 two ends, and the axle of pushing pin 21 can be moved back and forth ordinatedly.

Working condition is, at first with syringe needle 1, tube for transfusion 2, Gu bottle device 3, injection bottle 12, relief valve ball float 15, pneumatic tube 4, the valve 18 of calming the anger, intake valve 17, bacteria filter 19, air pressure glueballs (jar) 5 couples together, constitute unified passage, solid bottle device 3 is clipped in the fixation clamp 29 of inserting needle device 6, pneumatic tube 4 is clipped in fixation clamp 30, syringe needle 1 is clipped on the syringe needle folder 22, promote push rod 27, make and pull out pin switch 26 and inserting needle switch 25 enters duty, the gas of getting rid of syringe needle 1 and tube for transfusion 2, sterilize then patient's skin, syringe needle 1 is aimed at this skin part, press inserting needle switch 25, inserting needle spring 23 axle 21 of pushing pin, syringe needle 1 are promoted and are inserted patient's injection site; Press air pressure glueballs 5(and maybe will be filled with the switch opens of compressed-air actuated air pressure tank), gas is just pressed little funnel female cap 7 on pneumatic tube 4, solid bottle device 3, is entered in the injection bottle 12, and injection is pressed through tube for transfusion 2 and syringe needle 1 and is injected patient's injection site; Press after finishing and pull out pin switch 26, pull out that needle spring 24 just promotes inserting needle spring 23 and the axle 21 of pushing pin moves backward, syringe needle 1 is extracted.

During as disposable injection, only need to change syringe needle 1, tube for transfusion 2 and little funnel female cap 7 and get final product, other parts can continue use.And same only need of sterilization gets final product syringe needle 1, tube for transfusion 2,7 sterilizations of little funnel female cap.Only need during blood drawing 18 reversal connections of air pressure valve are got final product.

When being used for the venous transfusion garter, can save inserting needle device 6, directly syringe needle is inserted venous patient, suspension hook 14 is hung on the sick bed, other operation is identical with above-mentioned situation.

When injecting for a plurality of patients simultaneously, adopt the semi-automatic synchronous pneumatic injector (or semi-automatic synchronous pneumatic injector) (seeing Fig. 4, Fig. 5) that assembles by a plurality of said syringe with packing medicinal liquid function.

Semi-automatic synchronous pneumatic injector is the injecting unit of being made up of syringe needle 1, tube for transfusion 2, solid bottle device 3, injection bottle 12, relief valve ball float 15, inserting needle device 6 a plurality of, be arranged in a row regularly, pressure pipe joint 10 on each bottle device 3 is connected on the same pneumatic tube 4, pneumatic tube 4 is connected with an atmospheric pressure jar 5 again, each inserting needle switch 25 on baroswitch 35 each inserting needle device 6 is installed on it and is pulled out pin switch 26 and is linked up and done to handle synchronously by a synchronous push rod 37 of inserting needle and the synchronous push rod 38 of pin of eradicating respectively.During injection, earlier each injecting unit is connected, installs, get rid of the gas in various 1 and the tube for transfusion 2, allow each patient be sitting on each bench 43 sterilization and make the injection site aim at each syringe needle 1, promote the synchronous push rod 37 of inserting needle then, each syringe needle 1 just inserts each patient's injection site simultaneously, open baroswitch 35, air pressure just injects injection each patient's injection site simultaneously, after finishing, the synchronous push rod 38 of pin is pulled out in promotion, and each syringe needle is extracted simultaneously.

Semi-automatic synchronous pneumatic injector with packing medicinal liquid function is on the basis of above-mentioned semi-automatic synchronous syringe, the separating tube 39 that each tube for transfusion joint 9 on the solid bottle device 3 of each injecting unit is being connected a large-scale injection bottle 12 with same connects respectively, pacify a separatory main switch 40 simultaneously, injection bottle 12 on each injecting unit is replaced by cylinder type liquid speed display 16, each tube for transfusion 2 is connected with each cylinder type liquid speed display 16, and a transfuse switch 41 is installed respectively, make Synchronization Control by a synchronous push rod 42 of the transfuse switch that cooperates with each switch.Large-scale injection bottle 12 connects a pneumatic tube 4(simultaneously and communicates with the atmospheric pressure jar), a baroswitch 36 is installed on it.During the packing injection, handle the synchronous push rod 42 of transfuse switch earlier, close each tube for transfusion 2, open separatory main switch 40 and baroswitch 36 again, injection in the large-scale injection bottle 12 are pressed through separating tube 39 to enter each little funnel female cap 7 and cylinder type liquid speed display 16, after being measured, satisfying injection volume, close separatory main switch 40, handle the synchronous push rod 42 of transfuse switch again, open each transfuse switch 41, get rid of the gas in each tube for transfusion 2 and the syringe needle 1.Other injection manipulation is then identical with above-mentioned semi-automatic synchronous syringe.Injection finishes only to be needed each syringe needle 1 and tube for transfusion 2 are changed, and can continue to patient injection, and other parts do not need again every day or replacing is installed at every turn.

The foregoing description illustrates that advantage of the present invention is, easy to operate, hands can not contact patient skin, the sterilization volume is little, any existing injection bottle can be as building block of the present invention, and price is extremely low when using as disposable syringe, and it is just large and small to be convenient to patient when being used for the garter of venous transfusion, inject also can for many people synchronously, realize that injection is semi-automatic.Be applicable to hospital and family, especially disposable injection and injection synchronously.

Claims

1, medical pneumatic injector, it is characterized in that, form by the syringe needle 1 that cooperatively interacts, tube for transfusion 2, solid bottle device 3, injection bottle 12 (or the cylinder type liquid of vertex of a cone shape speed display 16), pneumatic tube 4, intake valve 17, the valve 18 of calming the anger, bacteria filter 19, baroswitch 35, air pressure glueballs (jar) 5, inserting needle device 6, relief valve ball float 15 parts.

2, syringe according to claim 1, it is characterized in that, Gu bottle device 3 is by little funnel female cap 7, seal washer 8, elastic 11, tabletting 13 is formed, the material of little funnel female cap 7 is a medical stainless steel, rubber, polyethylene or metal, there are tube for transfusion joint 9 and pressure pipe joint 10(an aperture respectively to be arranged and cover little funnel and communicate on it), tube for transfusion joint 9 can match with existing common syringe needle, or syringe needle, elastic 11 is installed on little funnel female cap 7 and the tabletting 13, suspension hook 14 is arranged on the tabletting 13, injection bottle 12 can be existing various injection bottles, bottleneck that its quilt is severed matches hermetically with the little funnel on the little funnel female cap 7, bottle is pushed down on little funnel female cap 7 by elastic 11 and tabletting 13, is placed with relief valve ball float 15 in the bottle; Elastic 11 and tabletting 13 can be replaced by the interior short tube that spring is housed.

3, according to claim 1,2 described syringes, it is characterized in that, syringe needle 1 connects an end of tube for transfusion 2, a switch can be installed on the tube for transfusion 2, its other end connects tube for transfusion joint 9, the bottleneck of injection bottle 12 is connected on the little funnel female cap 7 (by seal washer 8 sealings) pressure pipe joint 10 and is connected with an end of pneumatic tube 4, intake valve 17 is installed on the pneumatic tube 4, air pressure valve 18, bacteria filter 19(makes in pneumatic tube 4 with clean cotton plug), pneumatic tube 4 other ends are connected with air pressure glueballs (jar) 5, baroswitch is installed on it closes 35, thereby constitute the unified heavy connection of pipe of sealing.

4, syringe according to claim 1 is characterized in that, it can be the same parts that has now on the sphygomanometer that intake valve 17, air pressure are pressed door 18, air pressure glueballs 5.

5, syringe according to claim 1, it is characterized in that, inserting needle device 6 by body 20 push pin axle 21, syringe needle folder 22, inserting needle spring 23, pull out needle spring 24, inserting needle switch 25, pull out pin switch 26, push rod 27, pipe covers 28, fixation clamp 29, the fixation clamp 30 of fixed air pressure pipe 4, the syringe that can fix bottle device 3 presss from both sides 32, boosting bar 33(has a top top flat 45 on it), boosting spring 34 forms.Wherein each spring can be the elastic force elastic.The two terminal circle of body 20 respectively have in the heart one with push pin the axle 21 guiding apertures that match, fixation clamp 29,30 and syringe folder 32 are separately fixed on the body 20, one end of inserting needle spring 23 is fixed on the axle 21 of pushing pin, push rod 27 is fixed on the end that pulls out needle spring 24, the inserting needle spring 23 injection depth of needle that separately distance equals to stipulate in working order the time with the corresponding end of pulling out needle spring 24, pull out needle spring 24 elastic force definitely greater than the elastic force of inserting needle spring 23, make the injection depth of needle of axle 21 length that move of pushing pin simultaneously greater than regulation.The material of inserting needle device 6 is rustless steel or metal, plastics.

6, according to claim 1,2,3,5 described syringes, it is characterized in that, it can be a kind of semi-automatic synchronous pneumatic injector, promptly by syringe needle 1, tube for transfusion 2, a solid bottle device 3, injection bottle 12, inserting needle device 6 each one form an injecting unit, arrange respectively by a plurality of injecting units again and be fixed into a row, pressure pipe joint 10 on each solid bottle device 3 connects same pneumatic tube 4 that is connected with an atmospheric pressure jar 5 respectively, and a baroswitch 35 is arranged on it; Each inserting needle device 6 advance, pull out the pin switch respectively by the synchronous push rod 37 of inserting needle, pull out the synchronous push rod 38 of pin and connect together.

7, according to claim 1,2,3,5,6 described syringes, it is characterized in that, it can be a kind of semi-automatic synchronous pneumatic injector with packing injection function, the solid bottle device 3 of its each injecting unit is being fixed a cylinder type liquid speed display 16 that is connected with tube for transfusion 2 ordinatedly, each tube for transfusion joint 9 up connects same separating tube 39 respectively, separating tube 39 is connected with large-scale injection bottle 12, a separatory main switch 40 is installed on it, large-scale injection bottle 12 is connected with a pneumatic tube 4 simultaneously, by baroswitch 36 controls.A transfuse switch 41 is installed respectively on each tube for transfusion 2, is linked up and control by the synchronous push rod 42 of transfuse switch.Other device is identical with the described semi-automatic synchronous pneumatic injector of claim 6.