CN102058915B

CN102058915B - Medical constant speed transfusion device

Info

Publication number: CN102058915B
Application number: CN 200910225298
Authority: CN
Inventors: 宋玲琴; 张纯; 刘小旭
Original assignee: Second Affiliated Hospital Army Medical University
Current assignee: Second Affiliated Hospital Army Medical University
Priority date: 2009-11-17
Filing date: 2009-11-17
Publication date: 2013-04-17
Anticipated expiration: 2029-11-17
Also published as: CN102058915A

Abstract

The invention discloses a medical constant speed transfusion device, which comprises a pushing mechanism, a positioning device, a time controller, a transfusion device and a circuit system. The conventional mode of suspending-bottle transfusion and the conventional administration mode of the elastic retraction of liquid storage bags have the defect of poor accuracy of administration speed. An injector for the conventional micro-transfusion device has small capacity, and needs to be replaced repeatedly under the condition of long-time transfusion, so the continuous transfusion and curative effect are influenced due to transfusion interruption. In the medical constant speed transfusion device, the pushing mechanism is provided with a worm speed reducer, a single-phase controlled rectifying speed regulation circuit is adopted for realizing dual-control speed regulation, a mechanical wriggle device is provided to push the mechanical wriggle device stably at the constant speed to perform the continuous transfusion; the time controller realizes transfusion delay, transfusion intermittence and the programming of delayed transfusion through the regulation of halt and boot-up; and a high-capacity storage injection device is arranged to meet the requirement of one-time transfusion. The medical constant speed transfusion device is convenient to use and economic, relieves nursing workload, improves the life quality and curative effect of patients, and is suitable to be used for one-time transfusion and chemotherapy patients in clinic.

Description

Medical constant speed transfusion device

Technical field

The present invention relates to a kind of medical constant speed transfusion device.

Background technology

Present traditional infusion model, it is inconvenient to utilize the transfusion of transfusion bottle height to use, being not suitable with the patient infuses for a long time, tube for transfusion may come off to pollute and infuse and interrupt increasing medical-risk and nursing work load, cause easily that without the control reflux blood back causes the blood coagulation artery-clogging, cause patient's anxiety and anxiety, administration Non-intermittent function can not satisfy clinical demand, there is the poor defective of injection speed degree of accuracy in existing reservoir elastical retraction administering mode, the syringe capacity of existing micro-infusion set coupling is little, syringe need to be repeatedly changed in long-time transfusion, cause transfusion to interrupt affecting continuous infusion and curative effect, being not suitable for the large patient of injected dose uses, the Chemotherapy of Tumor Patients medicine needs repeatedly during continuous intravenous infusion administration, need therebetween intermittently, need repeatedly set administration time has increased nursing work load, and the present invention designs a kind of the propelling and the infusion set that can disposable setting program control continues at the uniform velocity administration of transfusion one for this reason, reduce nursing work load, satisfy the patient clinical demand.

Summary of the invention

The deficiency that the object of the invention is to overcome prior art designs, and finishes by the following technical programs.

Medical constant speed transfusion device comprises that propulsive mechanism 1, positioner 2, time controller 3, infusion set 4, Circuits System 5 consist of.

Propulsive mechanism 1 by DC micromotor 6, fixed support 7, worm reducer 8, all gear 11, tooth bar 12, guide pin bushing support 13, advance limit switch 20, retraction limit switch 21 not to form.

Positioner 2 is connected frid 15 and is formed by upper locating piece 25, lower location 26, pull bar 24, spring 37, movable fork 46, the terminal positioning groove plate 48 of storage notes device, piston-rod end.

Time controller 3 by shut down to regulate 28, start regulates 29, start regulates 33, time control power supply indicator 32, open 45 soon, halt indicator 30, start display lamp 31 form.

Infusion set 4 is comprised of storage notes device 18, liquid outlet 43, drug delivery port 35, flexible pipe 36, accurate filter 38, check valve 49, venous duct 34, syringe needle 47.

Circuits System 5 advances limit switch 20, retraction limit switch 21 and alarm to form by total power light 39, total power switch 40, D.C. voltmeter 41, the voltage-regulation 42 of installing on single-phase controlled rectification alignment circuit 56, time control circuit 57, warning circuit 58, permutator and electric control panel 27 panels in the electric control panel 27.

The present invention has the following advantages compared with the prior art:

1, propulsive mechanism and storage are annotated the device isolation and are arranged pollution-freely, and fltting speed realizes by mechanical reduction and single-phase controlled rectification speed governing dual control, and is provided with the mechanical creeping device, can stablize at the uniform velocity to advance and implement to continue transfusion.

2, special-purpose large capacity storage is set and annotates device, satisfy the disposable infusion demand, repeatedly change bottle or syringe in avoiding infusing and cause the patient to infuse to interrupt the harm that causes.

3, the present invention have easy to use, economical, alleviate nursing work load, improved Quality of Life and curative effect.

Description of drawings

Fig. 1 is overall structure sketch map of the present invention

Fig. 2 is the top view of Fig. 1 propulsive mechanism 1 (pulling out tube for transfusion)

Fig. 3 is the panel figure of Fig. 1 electric control panel 27

Fig. 4 is the B-B cutaway view of Fig. 1

Fig. 5 is the front view that the terminal positioning groove plate 48 of device is annotated in 2 storages of Fig. 1 positioner

Fig. 6 is the top view of Fig. 5

Fig. 7 is that Fig. 1 stores up the front view of annotating device 18

Fig. 8 is the elasticity orientation assemble figure that device 18 is annotated in 2 storages of Fig. 1 positioner

Fig. 9 is that the A of Fig. 1 propulsive mechanism 1 is to view

Figure 10 is the side view of Fig. 7

Figure 11 is Circuits System block diagram of the present invention

Figure 12 is the electrical schematic diagram of the single-phase controlled rectification alignment circuit 56 of Figure 11

Among the figure: propulsive mechanism 1; positioner 2; time controller 3; infusion set 4; Circuits System 5; DC micromotor 6; fixed support 7; worm reducer 8; motor worm 9; worm gear 10; gear 11; tooth bar 12; guide pin bushing support 13; movable fork 14; piston-rod end connects frid 15; piston rod 16; piston 17; device 18 is annotated in storage; piston-rod end; advance limit switch 20; retraction limit switch 21; base plate 22; device end 23 is annotated in storage; pull bar 24; upper locating piece 25; lower locating piece 26; electric control panel 27; shut down and regulate 28; start regulates 29; halt indicator 30; start display lamp 31; time control power supply indicator 32; start regulates 33; venous duct 34; drug delivery port 35; flexible pipe 36; spring 37; accurate filter 38; total power light 39; total power switch 40; D.C. voltmeter 41; voltage-regulation 42; liquid outlet 43; guide groove 44; open soon 45; fixation fork 46; syringe needle 47; device end positioning groove plate 48 is annotated in storage; check valve 49; permutator; alarm; permanent opening pad 52; pull bar fixed bolster 53; slider bar 54; bar ferrum 55; single-phase controlled rectification alignment circuit 56; time control circuit 57; warning circuit 58.

The specific embodiment

Ring flange on the DC micromotor 6 is threaded fixing with fixed support 7, fixed support 7 bottoms and base plate 22 welding, motor worm 9 in the worm reducer 8 and the assembling of worm gear 10 engaged transmission, worm gear 10 in-line gears 11 and the horizontal drive assembly of tooth bar 12 engagements, slider bar 55 on the tooth bar 12 and guide groove 44 slidable fit on the guide pin bushing support 13, the hole of tooth bar S end and the assembling of movable bolt axle, piston 17 on the piston rod 16 is annotated device 18 endoporus sealing slidable fit with storage, storage notes device terminal 23 is annotated device end positioning groove plate 48 slidable fit with storage and is put in place, piston-rod end is connected frid 15 slidable fit and connects with the piston rod end, lower locating piece 26 bottom M screws and base plate 22 are connected by screw fixing, fixation fork 46 on the upper locating piece 25H end is flexibly connected by bearing pin with the bar ferrum 55 that is fixed on lower locating piece 26, to store up notes device 18 and be placed on closed upper locating piece 25 on the lower locating piece 26, mention pull bar 24 and the fixed bolster 53 on the pull bar is placed realization resilient clamp assembling on the permanent opening pad 52 that is fixed on the upper locating piece 25, when piston 17 is finished reciprocal effective travel, behind the tooth bar end, be connected frid 15 underlyings with the piston rod end and retraction limit switch 21 be set respectively and advance limit switch 20.Liquid outlet 43, drug delivery port 35, accurate filter 38, check valve 49 that the storage of infusion set 4 is annotated on the device 18 connect with flexible pipe 36 pipes respectively, and check valve liquid outlet and venous duct 34 pipes connect.Accurately filter 38 designs are ellipsoid, and load has comfort at patient's arm during transfusion.In the single-phase 220V power supply access electric control panel 27, output control line is connected with DC micromotor 6, the single-phase controlled rectification alignment circuit 56 of electric control panel 27 interior devices, time control circuit 57, warning circuit 58 advance limit switch 20, retraction limit switch 21 and device in siren and the interlock of the circuit in the electric control panel 27 control of nurses' office.The present invention is by single-phase controlled rectification alignment circuit; main circuit adopts the SCR AC adjust blood pressure; and be provided with silicon controlled overvoltage resistance-capacitance protection; its control circuit is regulated DC voltage by potentiometer; stepless speed regulation and worm gear reducer dual control realize low-speed running and propelling; its speed can be according to patient's requirements set of infusing; implement the applicable coupling of dual control speed governing low capacity micromachine; all gear 11 and tooth bar 12 engaged transmission are set not can realize that the empty between cog wriggling of having a rest advances; be applicable to the clinical practice that the patient at the uniform velocity infuses; the transfusion of being administered once property of chemotherapy regulates by two groups of starts and conversion is regulated in one group of shutdown; set time-delay; intermittently; time-delay; transfusion intermittence and complete alarm treat that the nursing staff in time processes, and realize programming operations.

The present invention is applicable to the clinical practice of long-time transfusion and patients undergoing chemotherapy.

Claims

1. A medical uniform infusion device is characterized in that it comprises a propulsion mechanism (1), a positioning device (2), a time controller (3), an infusion device (4), a circuit system (5), and the propulsion mechanism (1) The flange on the micro DC motor (6) is threadedly connected to the fixed bracket (7) and fixed, the lower part of the fixed bracket (7) is welded to the bottom plate (22), and the motor worm (9) in the worm gear reducer (8) ) is engaged with the worm wheel (10), and the coaxial gear (11) of the worm wheel (10) is engaged with the rack (12). The guide groove (14) is slidably assembled, the hole on the S end of the rack (12) is assembled with the movable fork pin shaft, and the M screw hole at the bottom of the lower positioning block (26) on the positioning device (2) passes through the bottom plate (22) The screw is connected and fixed, and the syringe (18) is placed on the lower positioning block (26). The connecting groove plate (15) is slidably assembled in place, the fixed fork (46) on the H end of the upper positioning block (25) is movably assembled with the bar iron (55) pin on the lower positioning block (26), and the lower positioning block (26) Install the spring and install the pull bar (24), turn and close the upper positioning block (25), and the pull rod fixing pad (53) on the pull bar is placed on the fixed opening pad (52) fixed on the upper positioning block (25) to realize Elastic clamping assembly, the time controller (3) is adjusted by the time control circuit (57) in the electric control panel (27) and the stop adjustment (28) and start adjustment (29) on the panel of the electric control panel (27). , 33), quick start (45), time-controlled power supply indicator light (32), stop indicator light (30), start indicator light (31) connection composition, on the piston rod (16) of described infusion device (4) The piston (17) of the piston (17) is sealed and slidably assembled with the inner hole of the syringe (18), and the liquid outlet (43), the drug delivery port (35), the precision filter ( 38), the one-way valve (49) is pipe-connected with the hose (36) respectively, and the liquid outlet of the one-way valve is pipe-connected with the venous catheter (34), and the circuit system (5) is controlled by the Single-phase controllable rectification speed regulating circuit (56), time control circuit (57), alarm circuit (58), transfer switch and the total power indicator light (39) of the device on the panel of electric control panel (27), the total power switch ( 40), a DC voltmeter (41) and a voltage regulator (42), the single-phase 220V power supply is connected to the electric control panel (27), the output control line is connected to the micro DC motor (6), and the electric control panel (27) The single-phase controllable rectification speed regulating circuit (56), the time control circuit (57), the alarm circuit (58), the advancing limit switch (20), the retracting limit switch (21) and the The alarm that is installed in the nurse's office is controlled in linkage with the circuit in the electric control panel (27).

2. The medical constant-velocity infusion device according to claim 1, characterized in that, the gear (11) on the propulsion mechanism (1) is designed as a partial gear.

3. The medical uniform infusion device according to claim 1, characterized in that the precision filter (38) on the infusion device (4) is designed as an ellipsoid.