CN106139299A - A kind of Portable veinous transfusion device - Google Patents
A kind of Portable veinous transfusion device Download PDFInfo
- Publication number
- CN106139299A CN106139299A CN201610523411.8A CN201610523411A CN106139299A CN 106139299 A CN106139299 A CN 106139299A CN 201610523411 A CN201610523411 A CN 201610523411A CN 106139299 A CN106139299 A CN 106139299A
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- Prior art keywords
- transfusion
- pinch roller
- frame axle
- veinous
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/155—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by gas introduced into the reservoir
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M2005/1401—Functional features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of control, Portable veinous transfusion device of energy all weather operations based on gas pressure and machinery quantitative transfusion.It uses air pressure, peristaltic pump and mechanical clock technology, provides transfusion power by compressed gas, is limited and regulated inchworm motor rotating speed by escapement actuator linkage gear gear to control transfusion speed, to be weakened the work pulsation of wriggling measure motor by ripple damper to improve injection quality, to be prevented unexpected in infusion process losing blood by one-way clutch.Its simple and stable structure, reliable operation, capacity of resisting disturbance are strong, easy to operate, small in volume, disguise are strong, can preferably meet rescue of battlefield, field treatment and the medium-term and long-term deposit of daily treatment, ambulatory infusion treatment and the needs of all weather operations, be particularly suitable for the special infusions such as anti-oxidation and lucifuge simultaneously.
Description
Technical field
The present invention relates to a kind of Portable veinous transfusion device, be specifically related to a kind of for rescue of battlefield, field treatment and day
The Portable intravenous infusion device technique field controlled based on gas pressure and mechanical flow of often treatment.
Background technology
At present, common intravenous transfusion device mainly has conventional intravenous transfusion device and electronic intravenous transfusion device two kinds.Routine intravenous
Arteries and veins transfusion device potential energy, as transfusion power, must be placed in liquid relatively by transfusion people's certain altitude, liquid self potential energy
Become kinetic energy, overcome vein pressure and infusion pipeline resistance to enter human vein, monitor and control with dropper and flow regulator simultaneously
Transfusion speed processed, completes venous transfusion.There is the problem that need to big with work space, mobile in transfusion difficulty, it is impossible to meet open country
Outer treatment and rescue of battlefield need.Electronic intravenous transfusion device, usually utilizes motor to drive peristaltic pump to complete venous transfusion, and leads to
Cross electric machine speed regulation and control transfusion speed.There is the problem that one is the bigger torque of peristaltic pump job demand, required motor, subtract
Speed device and the system weight of battery and volume are relatively big, inconvenient to carry;Two be battery field or battlefield charging and change the most inconvenient,
Self-discharge of battery characteristic makes it inappropriate for long-term war preparedness and stores;Three is complicated electric machine speed regulation control system functional reliability
Low;Four is that electric machine control system was easily lost efficacy by high-intensity magnetic field, electric jamming, is not suitable for modernized war.
Summary of the invention
For problem above, the invention discloses a kind of control, energy whole day based on gas pressure and machinery quantitative transfusion
Wait the Portable veinous transfusion device of work.It uses classical ripe pressure technology, peristaltic pump technology and mechanical clock technology, uses
Compressed gas provide transfusion power, is limited by escapement actuator linkage gear gear and is regulated inchworm motor rotating speed control defeated
Liquid speed, arranges ripple damper simultaneously and weakens the work pulsation of wriggling measure motor to improve injection quality, to arrange one-way clutch
Device prevents unexpected in infusion process losing blood.This technical scheme simple and stable structure, reliable operation, capacity of resisting disturbance are strong, operation side
Just, small in volume, disguised strong, can preferably meet rescue of battlefield, field treatment and the medium-term and long-term deposit of daily treatment, shifting
Dynamic infusion treatment and the needs of all weather operations, and the probability occurring surprisingly to lose blood can be substantially reduced in infusion process, the most special
It is not suitable for the special infusions such as anti-oxidation and lucifuge.
The feature that the present invention is concrete is: 1. compare with conventional intravenous transfusion device, provides transfusion power, liquid by compressed gas
Without possessing position potential energy, compact conformation, work space are little.2. compare with electronic transfusion device (the two wriggling structure is identical, but one
Individual for driving link--pump, the present invention are driven member--motor, operation principle and actual efficacy are completely different), one is transfusion power
Directly provided by compressed gas, limited by escapement actuator constraint inchworm motor and regulated transfusion speed, it is not necessary to motor drives, dynamic
Power source is readily available and recovers;Two is simpler without the electric elements such as motor, controller, power supply, structure and work, stable,
Weight and volume is little.
Concrete structure, connection and work process
1, structure composition
A kind of Portable veinous transfusion device disclosed by the invention, total by device for exerting, liquid dispensing apparatus and three, control device
Become composition;Device for exerting is made up of gas bomb, decompression venting valve and appendix;Liquid dispensing apparatus is by two-chamber fluid bag, tube for transfusion, arteries and veins
Fluctuation dampers, filter, syringe needle connecting tube and syringe needle composition, ripple damper is by shell, base plate and the elasticity with air-vent
Rubber membrane forms;Control device to be made up of measure motor of wriggling, one-way clutch, gear shift and escape wheel speed regulator, compacted
Dynamic measure motor is made up of housing, pinch roller track, elastic patch, wheel carrier, pinch roller, wheel frame axle, and elastic patch is pasted onto pinch roller rail
In road, its cornerite more than adjacent two pinch roller cornerites (ensure in work tube for transfusion can by least one pinch roller and pinch roller track and
Elastic patch compression is formed and seals).
2, install and couple
The gas feed of decompression venting valve, decompression venting valve gas outlet and two-chamber fluid bag air chamber is installed on gas bomb
Between couple with appendix, the import on the liquid outlet of two-chamber fluid bag and ripple damper base plate, ripple damper base plate
On outlet couple with tube for transfusion successively with filter inlet, filter outlet couples with syringe needle syringe needle connecting tube, pinch roller rail
Pasting elastic patch, wheel carrier centre bore fixed installation wheel frame axle in road on roller surface, wheel carrier outer rim installs pinch roller, housing cavity
Centre bore installs wheel frame axle, and wheel frame axle fixedly mounts gear shift gear, and (i.e. wheel frame axle is the defeated of gear shift
Enter axle), one-way clutch is installed between wheel frame axle and housing, the end output gear shaft of gear shift fixedly mounts and catches
The escape wheel of vertical speed regulator, the tube for transfusion between import on two-chamber fluid bag liquid outlet and ripple damper base plate, put into
Formed between pinch roller and elastic patch and by the compression of pinch roller track and seal.
Accompanying drawing explanation
Fig. 1 is this transfusion system structure schematic diagram.
Fig. 2 is operating diagram during normal infusion.
Fig. 3 is the operating diagram during leakage of two-chamber fluid bag.
Except the structure title indicated in figure, sequence number is as follows with parts title corresponding relation:
1-gas bomb, 2-decompression venting valve, 3-appendix, 4-two-chamber fluid bag, 5-tube for transfusion, 6-housing, 7-pinch roller rail
Road, 8-elastic patch, 9-wheel carrier, 10-pinch roller, 11-wheel frame axle, 12-gear shift, 13-escape wheel speed regulator, 14-shell,
15-base plate, 16-rubber elastic membrane, 17-filter, 18-syringe needle connecting tube, 19-syringe needle, 20-one-way clutch
Detailed description of the invention
One, structure couples
As it is shown in figure 1, the present invention is made up of device for exerting, liquid dispensing apparatus and three assemblies of control device, be respectively provided with into
System provides operation power, contains and carry the function such as liquid, control transfusion speed;Device for exerting is steady by gas bomb (1), decompression
Pressure valve (2) and appendix (3) composition;Liquid dispensing apparatus is by two-chamber fluid bag (4), tube for transfusion (5), ripple damper, filter
(17), syringe needle connecting tube (18) and syringe needle (19) composition, ripple damper is by with the shell (14) of air-vent and base plate (15)
And rubber elastic membrane (16) composition;Control device by measure motor of wriggling, one-way clutch (20), gear shift (12)
Forming with escape wheel speed regulator (13), wriggling measure motor is by housing (6), pinch roller track (7), elastic patch (8), wheel carrier (9), pressure
Wheel (10), wheel frame axle (11) composition.
Decompression venting valve (2), decompression venting valve (2) gas outlet and two-chamber fluid bag (4) air are installed on gas bomb (1)
Couple, on two-chamber fluid bag (4) liquid outlet and ripple damper base plate (15) with appendix (5) between the gas feed in chamber
Couple with tube for transfusion successively between outlet and filter (17) import between import, on ripple damper base plate (15), filter
Couple by syringe needle connecting tube (18) between device (17) outlet and syringe needle (19) import.Shell is pasted on pinch roller track (7) interior roller surface
Elastic patch (8), the centre bore of wheel carrier (9) installs wheel frame axle (11), wheel carrier (9) outer rim installation pinch roller (10), housing (6) inner chamber
Centre bore install wheel frame axle (11), wheel frame axle (11) fixedly mounts the driving gear (wheel frame axle of gear shift (12)
Power shaft for gear shift), one-way clutch (20), change set are installed between wheel frame axle (11) and housing (6)
Fixedly mounting the escape wheel of escape wheel speed regulator (13) on the end output gear shaft of structure (12), the movable assembling of pinch roller track (7) is also
It is fixed on housing (6), the tube for transfusion portion between liquid outlet and ripple damper base plate (15) import of two-chamber fluid bag (4)
Divide and put between pinch roller (10) and elastic patch (8).
Two, job analysis
1, working condition during normal infusion
As in figure 2 it is shown, first gas bomb (1) will input the compressed gas of enough pressure, working condition of the present invention before Gong Zuo
As follows: to open decompression venting valve (2), the compressed gas in gas bomb (1) is depressurized and exports continuously by decompression venting valve (2)
The energy set meets the gas of transfusion needs pressure;→ above-mentioned gas continues into two-chamber fluid bag (4) by appendix (3)
Air chamber, by liquid in the medial septum of two-chamber fluid bag (4) liquid chambers to two-chamber fluid bag (4) apply continuous print,
Stable pressure, have the liquid of relevant pressure continuously enter tube for transfusion (5) (now, air chamber volume be gradually increased, liquid chambers
Volume reduces the most accordingly.In figure, in tube for transfusion (5), arrow show fluid pressure transmission and flow direction);→ due to transfusion
Pipe (5) is extruded to be formed by elastic patch (8) and at least one pinch roller (10) and seals, and produces pressure differential sealing both sides;→ at liquid
Under body pressure, the tube for transfusion (5) that sealing both sides are deformed has the trend resiled.But due to above-mentioned pressure differential
Existing, the tube for transfusion (5) on the left of sealing promotes and seals pinch roller (10) and drive wheel carrier (9) to rotate counterclockwise (i.e. wriggling metering horse
Reach rotation), seal simultaneously the tube for transfusion (5) on right side by rotate in an anti-clockwise direction compression, sealing station is with pinch roller (10) edge, position
Circumference rotates counterclockwise, and liquid is sealed pinch roller (10) extruding and carries to the right continuously;→ become by gear due to wheel frame axle (11)
Speed mechanism (12) couples escape wheel speed regulator (13), and wheel carrier (9) velocity of rotation (corresponding transfusion speed) is limited by escape wheel speed regulator (13)
It is scheduled in a stationary value, and can be adjusted by the hairspring length adjusting escape wheel speed regulator (13);It is simultaneously attached to wheel frame axle
(11) steel ball of the one-way clutch (20) on is pushed away by wheel frame axle (11), cannot realize between wheel frame axle (11) and housing (6)
Self-locking, wheel frame axle (11) can rotate in direction as shown in Figure 1 together with wheel carrier (9);Liquid on the right side of sealing in → tube for transfusion (5) leads to
Cross the import of ripple damper base plate (15), the sky that the base plate (15) of entrance ripple damper and rubber elastic membrane (16) form
Chamber, (there is pulsation in the work of wriggling measure motor, when output fluid pressure is low, elastic to make rubber elastic membrane (16) elastic expansion
Rubber membrane (16) resilience carries out compensating liquid, with stable transfusion pressure and flow, improves injection quality), simultaneously through base plate (15)
Outlet enters filter (17) and purifies and by syringe needle connecting tube (18) and syringe needle (19) input human vein.
2, the working condition during leakage of two-chamber fluid bag
As it is shown on figure 3, the intensity of two-chamber fluid bag (4) is the most weak in present configuration, easily it is pierced leakage.Based on described in 1,
When infusion process occurs air chamber and liquid chambers one or the two leak simultaneously, seal left side liquid and pass back into two-chamber fluid bag
(4) or by break discharge to its exterior, on the left of sealing, the fluid pressure in tube for transfusion reduces, when (quiet less than right atrial pressure
Pulse pressure) time, venous pressure promotes wheel carrier (9) one minute angle of reversion, and (in figure, in left side tube for transfusion (5), arrow show venous blood
Hydraulic coupling direction of transfer), one-way clutch (20) will wheel frame axle (11) locking, wheel carrier (9) or wriggling measure motor can not continue
Continuous reversion, and now still sealed pinch roller (10) due to tube for transfusion (5) and persistently end sealing, venous blood cannot go successively to defeated
Liquid applicator system, has stopped accident of losing blood and has occurred.
Claims (5)
1. a Portable veinous transfusion device, it is characterised in that: total in groups by device for exerting, liquid dispensing apparatus and control device three
Become;Device for exerting is made up of gas bomb (1), decompression venting valve (2) and appendix (3);Liquid dispensing apparatus by two-chamber fluid bag (4),
Tube for transfusion (5), ripple damper, filter (17), syringe needle connecting tube (18) and syringe needle (19) composition;Ripple damper is by shell
(14), base plate (15) and rubber elastic membrane (16) composition;Control device by measure motor of wriggling, one-way clutch (20), gear
Gear (12) and escape wheel speed regulator (13) composition, wriggling measure motor is by housing (6), pinch roller track (7), elastic patch
(8), wheel carrier (9), pinch roller (10), wheel frame axle (11) composition.
2. Portable veinous transfusion device as claimed in claim 1, it is characterised in that: gas bomb installs decompression venting valve on (1)
(2), couple with appendix (5) between the gas feed of decompression venting valve (2) gas outlet and two-chamber fluid bag (4) air chamber,
Between import on two-chamber fluid bag (4) liquid outlet and ripple damper base plate (15), on ripple damper base plate (15)
Couple with tube for transfusion successively between outlet and filter (17) import, between filter (17) outlet and syringe needle (19) import, use pin
Head connecting tube (18) couples, and pinch roller track (7) interior roller surface is pasted shell elastic patch (8), and the centre bore of wheel carrier (9) installs wheel
Frame axle (11), wheel carrier (9) outer rim installation pinch roller (10), the centre bore of housing (6) inner chamber installs wheel frame axle (11), wheel frame axle (11)
The driving gear (wheel frame axle is the power shaft of gear shift) of upper fixed installation gear shift (12), wheel frame axle (11)
And one-way clutch (20) is installed between housing (6), the end output gear shaft of gear shift (12) fixedly mounts and catches
The escape wheel of vertical speed regulator (13), the movable assembling of pinch roller track (7) is also fixed on housing (6), the liquid of two-chamber fluid bag (4)
Tube for transfusion between outlet and ripple damper base plate (15) import is partially placed between pinch roller (10) and elastic patch (8).
3. Portable veinous transfusion device as claimed in claim 1, it is characterised in that: that transfusion power is exported by gas bomb (1),
Through decompression venting valve (2) decompression, the compressed gas offer of voltage stabilizing.
4. Portable veinous transfusion device as claimed in claim 1, it is characterised in that: transfusion speed is joined by escape wheel speed regulator (13)
Moving gear gear (12) limits wriggling measure motor rotating speed and realizes, and can be long by adjusting the hairspring of escape wheel speed regulator (13)
Degree is adjusted.
5. Portable veinous transfusion device as claimed in claim 1, it is characterised in that: pacify between wheel frame axle (11) and housing (6)
Dress one-way clutch (20), prevents because two-chamber fluid bag (4) leakage causes the reversion of wriggling measure motor to occur in infusion process
Accident lose blood.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610523411.8A CN106139299A (en) | 2016-06-28 | 2016-06-28 | A kind of Portable veinous transfusion device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610523411.8A CN106139299A (en) | 2016-06-28 | 2016-06-28 | A kind of Portable veinous transfusion device |
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CN106139299A true CN106139299A (en) | 2016-11-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201610523411.8A Pending CN106139299A (en) | 2016-06-28 | 2016-06-28 | A kind of Portable veinous transfusion device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108223342A (en) * | 2017-12-08 | 2018-06-29 | 东莞市松研智达工业设计有限公司 | A kind of peristaltic pump that pulsation is eliminated using guide rail |
CN108309388A (en) * | 2018-03-18 | 2018-07-24 | 武汉市中西医结合医院(武汉市第医院) | A kind of external genital hemostasis by compression trousers |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2107925U (en) * | 1991-11-26 | 1992-06-24 | 洪涛 | Portable medical transfusion apparatus |
US6109895A (en) * | 1996-09-10 | 2000-08-29 | Conseil-Ray S.A. | Portable peristaltic pump |
CN2401193Y (en) * | 1999-11-24 | 2000-10-18 | 柳林 | Transfusion speed regulator |
CN2502710Y (en) * | 2001-09-24 | 2002-07-31 | 乔鹏涛 | Pumping-type transfusion system using bagged fluid |
CN201049118Y (en) * | 2007-05-08 | 2008-04-23 | 邱金和 | Portable venous drip structure |
CN204099148U (en) * | 2014-07-02 | 2015-01-14 | 上海盛拓医疗器械有限公司 | The ripple damper of ultra micro flow measurement pump |
-
2016
- 2016-06-28 CN CN201610523411.8A patent/CN106139299A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2107925U (en) * | 1991-11-26 | 1992-06-24 | 洪涛 | Portable medical transfusion apparatus |
US6109895A (en) * | 1996-09-10 | 2000-08-29 | Conseil-Ray S.A. | Portable peristaltic pump |
CN2401193Y (en) * | 1999-11-24 | 2000-10-18 | 柳林 | Transfusion speed regulator |
CN2502710Y (en) * | 2001-09-24 | 2002-07-31 | 乔鹏涛 | Pumping-type transfusion system using bagged fluid |
CN201049118Y (en) * | 2007-05-08 | 2008-04-23 | 邱金和 | Portable venous drip structure |
CN204099148U (en) * | 2014-07-02 | 2015-01-14 | 上海盛拓医疗器械有限公司 | The ripple damper of ultra micro flow measurement pump |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108223342A (en) * | 2017-12-08 | 2018-06-29 | 东莞市松研智达工业设计有限公司 | A kind of peristaltic pump that pulsation is eliminated using guide rail |
CN108309388A (en) * | 2018-03-18 | 2018-07-24 | 武汉市中西医结合医院(武汉市第医院) | A kind of external genital hemostasis by compression trousers |
CN108309388B (en) * | 2018-03-18 | 2023-11-03 | 武汉市中西医结合医院(武汉市第一医院) | Compression hemostatic trousers for pudendum |
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Application publication date: 20161123 |