CN204766827U - Power device of infusion power pump - Google Patents

Abstract

Power device of infusion power pump includes the motor, and rotatory ring is connected to the motor, and connective bar one end is connected through the connecting piece to rotatory ring, and driving head fix to its other end, and this connecting piece enables driving head when rotatory ring is rotatory flexible along connective bar axial direction, and driving head contacts dynamic for the pump elastomeric element of liquid medicine filter. The beneficial effects of the utility model are that: comparing with prior art, having adopted power drive device and the dynamic cooperation of liquid medicine filter for the pump, especially the cooperation of rotatory ring, bearing, curved surface parts makes the utility model discloses break away from out gravity, enlarged venous transfusion's practicality and convenience.

Description

A kind of power set of kinetic pump of infusing

Technical field

This utility model relates to field of medical appliances, is specifically related to infusion apparatus.

Background technology

Make a general survey of the clinical department of domestic and international medical institutions at different levels, venous transfusion is common, the most general clinical therapeutic modality.The inpatient of about 90% all needs to accept infusion treatment according to investigations.And conventional infusion method still use more than 100 year before " Mo Feishi " fixing suspension bracket of inventing, liquid bottle (bag) is hung on the certain altitude higher than patient site of puncture, promoting liquid by liquid gravity enters blood; And because working standard falls behind, dynamic filtration transfusion is still blank at home, by this traditional infusion method of liquid gravity, the main restriction by infusion power, fixing suspension bracket is needed to assist, actual use in there is many shortcomings: one, position is relatively fixing, limitation of activity: the common patient in medical space or accompany people to hold high on liquid bottle to carry out every inspection downstairs, even go up lavatory.Two, transhipment difficulty: without sufficient space placement infusion bottle institute outside, in field or patient transport way, in driving process, liquid bottle amplitude of fluctuation greatly, both dangerously can not infuse effectively.Three, accurately can not control transfusion speed: lose blood seriously in rescue, the high risk patient such as dehydration time, uncontrollable in official hour quantitative infusion accurately, the method infusion is often static infusion model.Four, in liquid, microgranule, not through filtering, causes the additional injury of the secondary of patient.

Utility model content

This utility model, for overcoming above-mentioned deficiency, provides a kind of infusion set power set not using gravity to infuse.

The technical solution of the utility model is specially:

The power set of transfusion kinetic pump comprise motor, motor connects rotating ring, rotating ring connects pitman one end by connector, its other end fixed conveyor head, this connector can make driving head stretch along pitman axial direction when rotating ring rotates, the elastomeric element of driving head contact dynamic pump liquid medicine filter.

Described rotating ring and the connector of pitman comprise the curve part and two bearings be fixed on rotating ring that are connected pitman, and bearing can move in a circle along the curved end of curve part; The curved end of curve part is arranged alternately protuberance and depressed part, and bearing is when the protuberance of the curved end of curve part moves to depressed part, and the relative distance of rotating ring and pitman reduces gradually, otherwise relative distance increases gradually.

Described protuberance or depressed part are symmetrical arranged by the center of circle of bearing rotary annulus.

The beneficial effects of the utility model are: compared to the prior art, have employed the cooperation of Power Drive Unit and dynamic pump liquid medicine filter, the particularly cooperation of rotating ring, bearing, curve part, makes this utility model be separated from gravity, expands practicality and the convenience of venous transfusion.

Accompanying drawing explanation

Fig. 1 is schematic diagram of the present utility model.

Fig. 2 is the structural scheme of mechanism of dynamic pump liquid medicine filter.

Fig. 3 is the generalized section of Fig. 2.

Fig. 4 is the schematic diagram of infusion set.

Fig. 5 is the flow chart of infusion set.

Detailed description of the invention

As Fig. 1-Fig. 4, a kind of dynamically transfusion system comprises fixed mount 1, fixed mount 1 is fixed with the memorizer 5(such as infusion bottle storing infusion medicine), memorizer 5 connects dynamic pump liquid medicine filter 3 by tube for transfusion 2, and dynamic pump connects transfusion with liquid medicine filter 3 by tube for transfusion 2 and thrusts portion 4(such as transfusion needle).

As Fig. 2, Fig. 3, dynamic pump liquid medicine filter 3 comprises the cavity that chamber wall 33 is formed, its opening fixing seal elastomeric element 30, the common connection method such as fixed form is that interference connects, bonding, flange, engaging, screw thread or screw.Chamber wall 33 is provided with the liquid feeding end 32 and liquid outlet 34 that connect tube for transfusion 2, and liquid feeding end 32 and liquid outlet 34 are respectively provided with a check valve 35, and the medicinal liquid of check valve 35 is along the direction circulation of thrusting portion 4 from memorizer 5 to transfusion.Elastomeric element 30 can be elastomeric material tabletting or resorption diaphragm.Be provided with drainage screen 36 in cavity, the pore size of drainage screen 36 can be arranged according to the actual requirements.

Over cap 31 is provided with in the outside of elastomeric element 30; when the connection of itself and chamber wall 33 is for being connected together; be provided with sealing ring 37 therebetween; sealing ring 37 and over cap 31 contact surface are provided with scrobicular ring 38; over cap 31 is provided with the bulge loop 39 mated with scrobicular ring 38 at correspondence position; like this, what over cap 31 connected is tight.When elastomeric element 30 works, over cap 31 will be taken off.

The dynamic pump elastomeric element 30 of liquid medicine filter 3 connects Power Drive Unit 8, as Fig. 1, Power Drive Unit 8 comprises motor 81, motor 81 connects rotating ring 82, rotating ring 82 connects pitman 85 one end by connector, pitman 85 other end fixed conveyor 86, this connector can make driving head 86 move along pitman 85 axial direction when rotating ring 82 rotates, driving head 86 contacts the elastomeric element 30 of dynamic pump liquid medicine filter 3.Motor 81 connects battery, and battery has charging inlet.

Rotating ring 82 and the connector of pitman 85 can be the parts of the common convert rotational motion rectilinear motion such as cam, leading screw, rack-and-pinion, also can as Fig. 1, this connector comprises the curve part 84 and two bearings 83 be fixed on rotating ring 82 that connect pitman 85, and bearing 83 can move in a circle along the curved end of curve part 84.The curved end of curve part 84 is arranged alternately protuberance 841 and depressed part 842, bearing 83 is when the protuberance 841 of the curved end of curve part 84 moves to depressed part 842, rotating ring 82 reduces gradually with the relative distance of pitman 85, otherwise relative distance increases gradually.In order to stable, protuberance 841 or depressed part 842 are symmetrical arranged by the center of circle of bearing 83 rotating ring.

When the battery of driving device 8 does not have electric energy, other external force can be used as the power resources of dynamic pump liquid medicine filter, such as the elastomeric element of manual squeezing dynamic pump liquid medicine filter, not affect use of the present utility model.

As Fig. 5, this utility model is provided with microcontroller electrical connection electric motor, and the manual adjustments switch of driving device 8 connects microcontroller.Microcontroller connects audible-visual annunciator.

Microcontroller is provided with infrared receiving device, can receive the signal of the infrared dispensing device mated with it.

As Fig. 4, Fig. 5, this utility model is provided with checkout gear 6, and checkout gear 6 comprises the electric capacity outside fixing tube for transfusion 2, and the two poles of the earth of electric capacity are clipped in the symmetric position outside tube for transfusion 2, and checkout gear 6 connects microcontroller.

This utility model is applicable to various transfusion device.

Its operation principle is:

As Fig. 1-Fig. 5, when this utility model uses, after ready, by the manual adjustments switch opens of driving device 8, motor 81 is started working, rotating ring 82 and bearing 83 start to rotate, when bearing 83 runs the protuberance 841 of the curved end of curve part 84, rotating ring 82 is maximum with the distance of driving head 86, promote the elastomeric element 30 that driving head 86 extrudes dynamic pump liquid medicine filter 3, the volume of its cavity diminishes pressure change greatly, medicinal liquid in cavity is flowed out, because the setting of check valve, can not circulate to memorizer 5 direction, portion 4 can only be thrust to transfusion to flow out, medicinal liquid flows to and thrusts portion 4, when bearing 83 runs the depressed part 842 of the curved end of curve part 84, rotating ring 82 is minimum with the distance of driving head 86, the elastomeric element 30 of dynamic pump liquid medicine filter 3 is recovered, the volume of its cavity becomes large pressure and diminishes, medicinal liquid in cavity is flowed into, because the setting of check valve, thrusting direction, portion 4 to transfusion can not circulate, can only flow into from memorizer 5, the medicinal liquid in cavity is supplemented.Motor 81 continuous firing, medicinal liquid is constantly transported in patient body.

Can according to the different demands of patient, adjust the manual adjustments switch of driving device 8 or press infrared dispensing device button, its Signal transmissions is to microcontroller, the rotating speed of microcontroller adjustment motor 81, change the round number of times of the elastomeric element 30 of driving head 86 and dynamic pump liquid medicine filter 3, the speed of regulating transfusion.

But some medicines can only specific speed, and can lock with infrared dispensing device, now, manual adjustments switch just loses regulating action.

If when the medicinal liquid conveying of memorizer 5 is complete, tube for transfusion 2 starts to enter air, because liquids and gases can make capacitance size different, when air enters the electric capacity place of checkout gear 6, checkout gear 6 detect simultaneously by signal transmission to microcontroller, microcontroller makes Power Drive Unit 8 quit work, and makes audible-visual annunciator start working simultaneously, reminds patient and nursing staff to carry out follow-up work.

Present patent application is with the not squeezable characteristic of liquid, adopt the engineering means driving liquid flow under external force, comprehensive physical, machinery and calculating auto-control technology, thus change traditional infusion power, provide a kind of novel dynamic filtration transfusion device driving device for clinical.This dynamic transfusion auxiliary device device mainly has following critical function:

In order to realize automatic control, automatically, early warning and portable dynamic overall goal, the primary structure of device comprise power drive, dynamic filtration fusion case, auto-alarm function, automatically anti-backflow system, infusion velocity adjustment, infrared remote control lock speed, etc. 5 parts.

1. dynamic transfusion self-control infusion dynamic structure: this structure adopts extrahigh energy battery (once charging can continuous operation 200 hours), can be kinetic energy by converting electric energy, and by microprocessor-based control, reach and regulate and control amount of infusion as required.

2. novel dynamic filtration dynamic pump liquid medicine filter: this structure transforms in traditional infusion device structure, can contact with dynamic structure, there is quick despatch interface, and accept the kinetic energy of dynamically transfusion driving device, promote liquid and complete transfusion work along liquid-transport pipe-line directed flow.(simultaneously quick despatch interface has protective housing, may be used for normal gravity transfusion) dynamic filtration dynamic pump liquid medicine filter is a part for novel infusion, with infusion power in conjunction with time completed (practical operation is less than 10 seconds) by quick despatch interface.

3. auto-alarm function: when liquid infusion is complete, sends urgent group flashing light and continuous audible alarm immediately, and cuts off the Power output of driving device.Change new liq to point out or terminate transfusion.

4. automatic anti-backflow system: when liquid infusion is complete, fast automatic startup lock function immediately, response time < 1 second.Major function is also deposited in case at infusion power, and transfusion speed can be adjusted to 0 by system automatically, enters vein with air-prevention, also stops venous blood reflux to occur blood coagulation phenomenon to tube for transfusion simultaneously.

5. infusion velocity adjusting function: transfusion speed can carry out stepless time adjustment and speed directly inputs locked: can for varying with each individual, due to illness different, differently because of medicine choose transfusion speed.As by amount of liquid infusion velocity (50ml/min or 1000ml/min etc.) input automatic control automatic chip, need to reach transfusion speed accurately according to conditions of patients.

Operation sequence is: be positioned on liquid frame by infusion liquid (bottle, bag); open mouth of infusion bottle (bag) lid; routine disinfection; being connected with transfusion device liquid feeding end, kettle being dripped as dripping kettle rack, dynamic filtration fusion case is removed protective housing and load in the forced locking device of infusion dynamic structure; open host power switch; and then flow-controlled device is selected required infusion velocity, after automatic drained air, the transfusion port of export is connected with patient's trocar and can implements to infuse.Major advantage:

1. change infusion power, do not rely on the self gravitation of liquid, also do not need additional power supply, dynamic pump liquid medicine filter, manual inflation etc. to be infusion power.Utilize dynamic filtration fusion case transfer structure to be kinetic energy by converting electric energy first, then be that infusion powered liquid is along the directed intravasation of liquid-transport pipe-line by kinetic energy.

2. do not need drip stand, do not affect activity, the high position changing traditional infusion hangs the pattern of bottle, Postural immobilization, not by the restriction of infusion bottle suspension height, make liquid can be placed on any position of close health, no matter patient sits, sleeping, walking all does not affect normal infusion.

3. the wounded transport conveniently, do not need with drip stand, light small and exquisite (gross weight < 500g), easy to carry, especially, in transportation of patients way, space occupy-place is little, and infusion velocity is accurate, hidden performance is good, is especially practically applicable to ambulance, forward position, battlefield rescues that the wounded are more real has shown its safety, motility and disguise.

Scientific in principle, diverse in function, by the automatic control of automatic controller, disposablely can reach control speed and (can be fast or slow, there is dynamic pump liquid medicine filter function), filter (2um, 3um, 5um), early warning and anti-backflow function, substantially increase the intelligent and safety of transfusion.

Claims (3)

1. the power set of a kinetic pump of infusing, comprise motor (81), it is characterized in that: described motor (81) connects rotating ring (82), rotating ring (82) connects pitman (85) one end by connector, its other end fixed conveyor head (86), this connector can make driving head (86) stretch along pitman (85) axial direction when rotating ring (82) rotates, driving head (86) contact dynamic pump liquid medicine filter.

2. the power set of transfusion kinetic pump as claimed in claim 1, it is characterized in that: described rotating ring (82) and the connector of pitman (85) comprise the curve part (84) and two bearings (83) be fixed on rotating ring (82) that are connected pitman (85), and bearing (83) can move in a circle along the curved end of curve part (84);

The curved end of bearing (83) is arranged alternately protuberance (841) and depressed part (842), the curved end of curve part (84) is arranged alternately protuberance (841) and depressed part (842), bearing (83) is when the protuberance (841) of the curved end of curve part (84) moves to depressed part (842), rotating ring (82) reduces gradually with the relative distance of pitman (85), otherwise relative distance increases gradually.

3. the power set of transfusion kinetic pump as claimed in claim 2, is characterized in that: described protuberance (841) or depressed part (842) are symmetrical arranged by the center of circle of bearing (83) rotating ring.