CN109172888A - Medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument - Google Patents
Medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument Download PDFInfo
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- CN109172888A CN109172888A CN201811187582.3A CN201811187582A CN109172888A CN 109172888 A CN109172888 A CN 109172888A CN 201811187582 A CN201811187582 A CN 201811187582A CN 109172888 A CN109172888 A CN 109172888A
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- China
- Prior art keywords
- pressure
- negative pressure
- drainage
- drainage bottle
- therapeutic equipment
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- 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
-
- A61M1/0023—
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
-
- 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
- A61M2205/18—General characteristics of the apparatus with alarm
-
- 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
- A61M2205/3331—Pressure; Flow
Abstract
The invention discloses a kind of medicinal intelligent pressure regulation suction sputums to attract negative pressure therapeutic instrument, including therapeutic equipment ontology and drainage bottle, human-computer interaction interface, warning device, Intaker controller, pressure release electromagnetic valve, pressure sensor, liquid level sensor and embedded microcomputer system are provided in therapeutic equipment ontology;Human-computer interaction interface, warning device, Intaker controller, pressure release electromagnetic valve, pressure sensor, liquid level sensor are connect with embedded microcomputer system, and therapeutic equipment need to connect hospital's negative pressure source;The Intaker controller is separately connected negative pressure source and drainage bottle by conduit, and the drainage bottle is communicated by pressure release electromagnetic valve with atmospheric environment, and drainage bottle and therapeutic equipment ontology junction are provided with pressure sensor and liquid level sensor.The configuration of the present invention is simple can maintain patient's end pressure when attracting treatment according to patient's weight intelligent selection suction sputum pressure when suction sputum, and it is safe to be provided with tissue adsorptions alarm, decompression alarm, drainage flow and drainage speed warning device, use.
Description
Technical field
The invention belongs to technical field of medical equipment, attract negative pressure treatment more particularly to a kind of medicinal intelligent pressure regulation suction sputum
Instrument.
Background technique
In curative activity, many patients need to attract.Such as the wound drainages of suction sputum, surgical site infections, the acute and chronic surface of a wound/
The negative pressure treatment etc. of infective wound surface.The negative pressure of hospital is provided by central negative pressure station, generally in 200-300mmHg or so, is conveyed to
Each clinical department ward.The negative pressure bottle connection sputum aspirator tube or negative tube of each department's utility machine pressure regulation, are disposed for patient.
The negative pressure therapeutic instrument of mechanical pressure regulation has the drawback that 1. pressure transients.The negative pressure therapeutic instrument one of mechanical pressure regulation
As using the pipeline aperture at control switch, regulate and control negative pressure.In patient end, such as the negative pressure dressing of closed negative pressure drainage treatment,
It, can accurate control negative pressure when the aperture of gas leakage is constant.But in actual application, the gas leakage of patient end is not often permanent
It is fixed.During attracting, if drainage tube can be completely enclosed after the hole of postoperative suction tube is adsorbed on patient organ above;Surface of a wound envelope
If close negative pressure drainage treatment patient's dressing sealing it is extraordinary when, almost complete sealing can also be caused.At this point, mechanical negative
Even if pressing regulating device aperture very small, the negative pressure for also resulting in patient end is equal or close to the negative pressure of central negative potential source, i.e. ,-
300mmHg or so.Pressure transient will have a direct impact on the treatment or prognosis of patient.2. dangerous.As mentioned, machine
Tool regulating device, the pressure that may result in patient end reach or close to negative 200-300mmHg.Drainage tube conduction hole or
When person's slot is adsorbed onto patient organ, as enteron aisle perhaps the tube wall of big blood vessel when especially these organs have wound or
When lesion, pressure can lead to bowel perforation, and angiorrhoxis leads to death or serious problems.3. medical staff and trouble
The heavy workload of person family members.For example patient's suction sputum when, need to adjust suction sputum pressure according to different patients, and suction sputum pressure is difficult standard
Really maintain.In Wound-surface negative pressure treatment, in order to maintain negative pressure appropriate, it is often necessary to which medical staff often adjusts negative pressure.If
It gives these work to family numbers of patients, often results in family numbers of patients pressure increase, and often cannot be by negative pressure adjusted and controlled to perfect condition.4.
The negative pressure therapeutic instrument of mechanical pressure regulation cannot provide effective vacuum suction for wound drainage.Wound drainage needs lower negative pressure,
About -3 to -10mmHg can meet the requirements.But the existing negative pressure adjusted and controlled device of machinery can not be effective and maintains this lower negative pressure.Make
With disposable negative pressure drainage ball (negative pressure suction ball of the bright based high molecular Medical Devices Co., Ltd. production of such as Suzhou New District) Chang Yin
Wound gas leakage, which causes to attract, fails, the generation of cause injury mouthful hydrops and infection.
Therefore, the emphasis how to solve the above problems as those skilled in the art's research.
Summary of the invention
It is an object of the invention to provide a kind of medicinal intelligent pressure regulation suction sputums to attract negative pressure therapeutic instrument, can be fully solved above-mentioned
In place of the deficiencies in the prior art.
The purpose of the present invention is realized by following technical proposals:
A kind of medicinal intelligent pressure regulation suction sputum attraction negative pressure therapeutic instrument, including therapeutic equipment ontology and drainage bottle, the therapeutic equipment
Human-computer interaction interface, embedded microcomputer system, warning device, Intaker controller, pressure release electromagnetic valve, pressure are provided in ontology
Force snesor and liquid level sensor, the inlet duct include stepper motor and throttle valve, the human-computer interaction interface, alarm dress
It sets, stepper motor, pressure release electromagnetic valve, pressure sensor and liquid level sensor are connect with embedded microcomputer system, the section
The central negative potential source or external negative pressure source that stream valve is provided by the first tracheae and institute connects, and throttle valve passes through the second tracheae and drains
Bottle connection, the drainage bottle are communicated by pressure release electromagnetic valve with atmospheric environment, and the drainage bottle is connect with therapeutic equipment ontology,
Drainage bottle and therapeutic equipment ontology junction are provided with pressure sensor and liquid level sensor.
Preferably, the human-computer interaction interface is touch screen or is liquid crystal display and key combination.
Preferably, being provided with Quick Release sealing structure on the drainage bottle.
Compared with prior art, the beneficial effects of the present invention are:
1. the configuration of the present invention is simple, design rationally, can substitute Hospitals at Present commonly mechanical negative pressure control apparatus, can have
Effect maintains patient's end pressure, the significantly work load of mitigation medical staff and family numbers of patients.
2. the present invention can effectively prevent patient end hypertonia, when patient end hypertonia, passes through pressure relief device solenoid valve
Pressure is down to setting value by II, to prevent injuries of tissues and organs caused by hypertonia.
3. being equipped with warning device, in decompression, drainage flow is excessive, drainage speed is too fast, tissue adsorptions alarm, it is ensured that
Therapeutic effect (decompression alarm) prevents big bleeding (the excessive alarm of drainage speed, drainage flow), and prevents tissue damage (tissue suction
Attached alarm).
4. the present invention can stablize in -3 to -10mmHg pressure limits and maintain negative pressure, sustainable, effective, safety maintains wound
Mouth drainage.
5. the present invention can store patient basis, and according to weight intelligent selection suction sputum pressure, and be controlled by air inlet
Device and relief valve control pressure, prevent sputum aspirator tube from adsorbing caused hypertonia and tunica mucosa tracheae damage problem after tracheae.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention;
Fig. 2 is circuit connection schematic diagram of the invention;
Fig. 3 is the exploded view of Quick Release sealing structure;
Fig. 4 is state diagram when Quick Release sealing structure unscrews;
Fig. 5 is state diagram when Quick Release sealing structure screws.
Appended drawing reference: 1- human-computer interaction interface, the embedded microcomputer system of 2-, 3- warning device, 4- stepper motor, 5- section
Flow valve, 6- pressure release electromagnetic valve, 7- pressure sensor, 8- drainage bottle, 9- liquid level sensor, 801- top cover, 802- sealing ring, 803-
Lid eaves, 804- fixing piece, 805- body, 806- snap close piece, 807- bottleneck upper limb.
Specific embodiment
The present invention is further illustrated with attached drawing combined with specific embodiments below.
Embodiment one
As shown in Figure 1 to Figure 2, a kind of medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument, including therapeutic equipment ontology and draws
Bottle 8 is flowed, therapeutic equipment ontology includes human-computer interaction interface 1, embedded microcomputer system 2, warning device 3, Intaker controller, lets out
Pressure electromagnetic valve 6, pressure sensor 7, liquid level sensor 9, drainage bottle 8.Inlet duct includes stepper motor 4 interconnected and section
Flow valve 5, human-computer interaction interface 1, warning device 3, stepper motor 4, pressure release electromagnetic valve 6, pressure sensor 7 and liquid level sensor 9
It is connect with embedded microcomputer system 2, the central negative potential source or external negative pressure source that throttle valve 5 is provided by the first tracheae and institute
Connection, throttle valve 5 are connect by the second tracheae with drainage bottle 8, and drainage bottle 8 passes through pressure release electromagnetic valve 6 and atmospheric environment phase
Logical, the connection of 8 therapeutic equipment ontology of drainage bottle, drainage bottle 8 and therapeutic equipment ontology junction are equipped with pressure sensor 7 and level sensing
Device 9.
In the present embodiment, the serial ports capacitance touch screen of 1 model great Cai scientific & technical corporation of human-computer interaction interface production is embedded
Microcomputer system 2 is mitsubishi FX2N PLC controller, and warning device 3 is the miniature electric buzzer FMQ- of full industry electric appliance production
2724,4 model TELESKY board 42BYGH34 of stepper motor, 5 model De Lixi one-way throttle valve RE02 of throttle valve, pressure release
The 0520D solenoid valve of 6 model Foshan power of solenoid valve hereby electronics scientific technology co's production, pressure sensor 7 are that Beijing Austria rises certainly
Pressure Sensor Precision-the 0.7mmHg of dynamicization science and technology production, the production of 9 model gold porcelain science and technology of liquid level sensor
NU200F18TR precision 0.1mm.
Intelligentized control method of the present invention can be realized following exclusive function:
1. suction sputum function: suction pressure value can be set according to weight section in the setting page of the operation page;By screen
Curtain suction sputum button, stepper motor 4 control throttle valve 5 and connect negative pressure, and negative pressure source connects drainage bottle;By pressure sensor, when negative
It forces down when corresponding weight section negative pressure setting value 5mmHg, stepper motor 4 controls throttle valve 5 and reduces gas flowing, works as negative pressure value
When 5mmHg higher than setting value, stepper motor 4 controls throttle valve 5 and increases gas flowing.By liquid level sensor, when in drainage bottle
Amount of liquid be more than setting value when, buzzer warning;Alarm sound can be 5 minutes by mute button temporary close, but suction sputum
Function is unaffected.
Such as setting 60kg or more suction sputum pressure -200mmHg, 40-60kg suction sputum pressure -160mmHg, 10-40kg suction sputum
Pressure -120mmHg is less than 10kg suction sputum pressure -80mmHg.If patient is 65kg adult, after inputting patient's weight information, insertion
It is that (PLC will maintain suction sputum pressure to -200mmHg that type micro-computer system (this preferred embodiment is PLC), which can automatically select suction sputum pressure,
Between -190 to -210mmHg).Pressoreceptor impression drainage pressure of the inside of a bottle, is passed to PLC, PLC controls stepper motor and opens
Throttle valve, when draining pressure of the inside of a bottle higher than -200mmHg (by taking setting value -200mmHg as an example) during suction sputum, stepper motor
Persistently open throttle valve;When draining pressure of the inside of a bottle between -190 to -210mmHg, throttle valve maintains current location;In pressure
When lower than -210mmHg, stepper motor progressively closes off throttle valve.If pressure is lower than -220mmHg, PLC control pressure release electromagnetic valve is beaten
Drive row pressure release into, PLC control electromagnetic valve II is closed when pressure release is to 210mmHg.
2. wound drainage function: electromagnetic valve I (it is normally closed, it is connected to drainage bottle and negative pressure source, for drawing in 4 miscarriage bottles
Raw negative pressure) and electromagnetic valve II (normally closed, to be connected to drainage bottle and outside air, be used for negative pressure pressure release in bottle).Pressure sensor prison
Negative pressure value in bottle is surveyed, under micro computer (PLC or industrial control board etc.) control, by two solenoid valves, is generated in drainage bottle special
Determine negative pressure.It can according to need, the pressure size of wound drainage is set, general -3 to -10mmHg.
Under wound drainage mode, setting wound drainage negative pressure is -5mmHg, and PLC is by control drainage negative pressure in -3mmHg
To -7mmHg.Pressure sensor experiences negative pressure in drainage bottle, if be lower than -7mmHg, pressure release electromagnetic valve is opened, and carries out pressure release,
It is closed when extremely -7mmHg;If negative pressure is higher than -3mmHg in drainage bottle, step motor control throttle valve opens big air-flow, until -5mmHg
When maintain throttle valve position.
3. suction hole adsorbs tissue warning function: if negative pressure value maintenance is good and stepper motor and throttle valve do not work
Between more than 30 minutes and/or drainage flow in 60 minutes lower than the 1/3 of the estimated drainage flow of wound, therapeutic equipment alarm prompts suction hole
It is adsorbed on histoorgan, easily causes organ or tissue to damage for a long time.
Principle: the liquid exudation every square centimeter of 1. head and neck wounds and amount of bleeding 1-5ml/24 hours;Trunk four limbs wound
Mouth liquid every square centimeter oozes out and amount of bleeding 0.4-3ml/24 hours.If drainage tube adsorbs tissue, the drainage flow in drainage bottle
It will not change.2. wound is in inflammatory phase, and wound cannot completely enclose in 48 hours after wound closing after surgery,
It cannot be fully sealed with the external world.If the lengthy pressure in drainage bottle remains unchanged and solenoid valve does not work, then within this time
Illustrate that drainage tube adsorbs tissue.
Under wound drainage mode, inputs the patients surgery end time and input patient wound's area, wound belongs to
Head and neck or trunk four limbs;It presses and starts to attract key.PLC is detected in drainage bottle by pressure sensor and liquid level sensor
Pressure and drainage flow.If patients surgery wound has carried out neck lymph dissection operation, wound area about 150cm in head and neck2,
16 hours after surgery drainage bottle pressures persistently maintain between -4 to -6mmHg 30 minutes and solenoid valve does not work, small nearly 1
When interior drainage flow be less than 1ml (should be in 6-30ml), therapeutic equipment alarm.
4. decompression, drainage flow are excessive, the too fast warning function of drainage speed: by pressure sensor, liquid level sensor, passing through
PLC, in decompression, drainage flow is excessive and the too fast alarm of drainage speed.
Decompression alarm: in setting page setup decompression alarm pressure value and duration, such as treatment negative pressure be set as-
120mmHg, decompression -20mmHg (step motor control throttle valve opens to the maximum, still 20mmHg higher than setting value), decompression time
15 minutes.I.e. patient's negative pressure can only achieve between -100mmHg or following, and the duration has been more than 15 minutes, and PLC will lead to
Cross warning device alarm.
Drainage flow and drainage speed alarm: setting the page can be set drainage flow alarm value and drainage speed alarm
Value.For example drainage flow alarming value is located at 600ml, drainage speed alarm setting is in 300ml/h.When by start button, PLC starts to count
Calculate drainage or the negative pressure treatment time, PLC by liquid level sensor detection drainage bottle in drainage flow, and with drainage flow divided by when
Between calculate drainage speed.When drainage flow is more than 600ml or drainage speed is more than 300ml/h, alarm.
5. curve function: curve function button is set on touch screen, when click real-time negative pressure, drainage flow and drainage time meeting
It is converted into " curve graph display pattern ".The curve changed over time according to real-time negative pressure value, it can be determined that negative pressure treatment it is effective
Property;According to the curve of drainage flow and drainage speed and time change, can mention in formula wound whether have bleeding and whether be
The bleeding of Delayed onset.
Embodiment two
As shown in Figures 1 to 5, a kind of medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument, including therapeutic equipment ontology and draws
Bottle 8 is flowed, therapeutic equipment ontology includes human-computer interaction interface 1, embedded microcomputer system 2, warning device 3, Intaker controller, lets out
Pressure electromagnetic valve 6, pressure sensor 7, liquid level sensor 9, drainage bottle 8.Inlet duct includes stepper motor 4 interconnected and section
Flow valve 5, human-computer interaction interface 1, warning device 3, stepper motor 4, pressure release electromagnetic valve 6, pressure sensor 7 and liquid level sensor 9
It is electrically connected with embedded microcomputer system 2, the central negative potential source or external negative pressure that ball valve 5 passes through the first tracheae and institute's offer
Source connection, ball valve 5 are connect by the second tracheae with drainage bottle 8, and drainage bottle 8 passes through pressure release electromagnetic valve 6 and atmospheric environment phase
Logical, drainage bottle 8 is connect with therapeutic equipment ontology, and drainage bottle 8 and therapeutic equipment ontology junction are equipped with pressure sensor 7 and liquid level biography
Sensor 9.
In the present embodiment, Quick Release sealing structure is provided on drainage bottle 8, specifically, drainage bottle 8 includes bottle cap and body
805, bottle cap include top cover 801, sealing ring 802 and with the integrally formed lid eaves 803 of top cover 801;The inside of lid eaves 803 has
Fixing piece 804,805 outer surface of body is close to bottle mouth position integrally formed with snap close piece 806.The work of the Quick Release sealing structure is former
Reason: as shown in figure 3, when bottle cap does not screw body 805, snap close piece 806 is located at the side of fixing piece 804, on drainage bottle bottleneck
Edge 807 is contacted with sealing ring 802, but sealing ring 802 is not compressed;Bottle cap screws body 805, and snap close piece 806 rotates to solid
Determine the top of part 804, drains 807 compresses seal 802 of bottleneck upper limb, achieve the effect that sealing.This design facilitates therapeutic equipment sheet
Installing and dismounting between body and drainage bottle 8.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (3)
1. a kind of medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument, it is characterised in that: including therapeutic equipment ontology and drainage bottle
(8), be provided in the therapeutic equipment ontology human-computer interaction interface (1), embedded microcomputer system (2), warning device (3), into
Gas control device, pressure release electromagnetic valve (6), pressure sensor (7) and liquid level sensor (9), the inlet duct include stepping electricity
Machine (4) and throttle valve (5), the human-computer interaction interface (1), warning device (3), stepper motor (4), pressure release electromagnetic valve (6), pressure
Force snesor (7) and liquid level sensor (9) are connect with embedded microcomputer system (2), and the throttle valve (5) passes through the first gas
The central negative potential source provided with institute to be provided or external negative pressure source is connect, throttle valve (5) is connect by the second tracheae with drainage bottle (8),
The drainage bottle (8) is communicated by pressure release electromagnetic valve (6) with atmospheric environment, and the drainage bottle (8) and therapeutic equipment ontology connect
It connects, drainage bottle (8) and therapeutic equipment ontology junction are provided with pressure sensor (7) and liquid level sensor (9).
2. a kind of medicinal intelligent pressure regulation suction sputum according to claim 1 attracts negative pressure therapeutic instrument, it is characterised in that: the people
Machine interactive interface (1) is touch screen or is liquid crystal display and key combination.
3. a kind of medicinal intelligent pressure regulation suction sputum according to claim 1 attracts negative pressure therapeutic instrument, it is characterised in that: described to draw
Quick Release sealing structure is provided on stream bottle (8).
Priority Applications (2)
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CN201811187582.3A CN109172888A (en) | 2018-10-12 | 2018-10-12 | Medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument |
PCT/CN2019/110245 WO2020073932A1 (en) | 2018-10-12 | 2019-10-10 | Medical intelligent sputum aspiration negative-pressure therapeutic apparatus with adjustable pressure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811187582.3A CN109172888A (en) | 2018-10-12 | 2018-10-12 | Medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument |
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CN201811187582.3A Pending CN109172888A (en) | 2018-10-12 | 2018-10-12 | Medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument |
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WO (1) | WO2020073932A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020073932A1 (en) * | 2018-10-12 | 2020-04-16 | 谭泓 | Medical intelligent sputum aspiration negative-pressure therapeutic apparatus with adjustable pressure |
CN111265726A (en) * | 2020-01-16 | 2020-06-12 | 上海理工大学 | Drainage liquid measuring device and method |
CN111420142A (en) * | 2020-04-30 | 2020-07-17 | 厦门中翎易优创科技有限公司 | Composite pressure therapeutic apparatus and use method thereof |
CN113440222A (en) * | 2021-07-13 | 2021-09-28 | 上海埃尔顿医疗器械有限公司 | Negative pressure adsorption mechanism and negative pressure system applied to surgical instrument |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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TR2021012786A2 (en) * | 2021-08-12 | 2021-09-21 | Vascuthera Medikal Arge Ihracat Ithalat Ltd Sirketi | PROGRAMMABLE AUTOMATIC RESISTANCE ASPIRATION SYSTEM |
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CN102274573A (en) * | 2011-05-17 | 2011-12-14 | 北京航空航天大学 | Microprocessor core-based dual negative pressure regulation type wound negative pressure therapy device |
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CN209270426U (en) * | 2018-10-12 | 2019-08-20 | 谭泓 | Medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument |
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CN109172888A (en) * | 2018-10-12 | 2019-01-11 | 谭泓 | Medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument |
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Patent Citations (3)
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CN102274573A (en) * | 2011-05-17 | 2011-12-14 | 北京航空航天大学 | Microprocessor core-based dual negative pressure regulation type wound negative pressure therapy device |
CN108211022A (en) * | 2018-01-17 | 2018-06-29 | 绵阳美科电子设备有限责任公司 | A kind of automatic sputum elimination machine and its method of work |
CN209270426U (en) * | 2018-10-12 | 2019-08-20 | 谭泓 | Medicinal intelligent pressure regulation suction sputum attracts negative pressure therapeutic instrument |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020073932A1 (en) * | 2018-10-12 | 2020-04-16 | 谭泓 | Medical intelligent sputum aspiration negative-pressure therapeutic apparatus with adjustable pressure |
CN111265726A (en) * | 2020-01-16 | 2020-06-12 | 上海理工大学 | Drainage liquid measuring device and method |
CN111420142A (en) * | 2020-04-30 | 2020-07-17 | 厦门中翎易优创科技有限公司 | Composite pressure therapeutic apparatus and use method thereof |
CN113440222A (en) * | 2021-07-13 | 2021-09-28 | 上海埃尔顿医疗器械有限公司 | Negative pressure adsorption mechanism and negative pressure system applied to surgical instrument |
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