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CN108969810A - A kind of automatic jet control device - Google Patents

A kind of automatic jet control device Download PDF

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Publication number
CN108969810A
CN108969810A CN201810659528.8A CN201810659528A CN108969810A CN 108969810 A CN108969810 A CN 108969810A CN 201810659528 A CN201810659528 A CN 201810659528A CN 108969810 A CN108969810 A CN 108969810A
Authority
CN
China
Prior art keywords
converter
current
limiting
fixing seat
control device
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.)
Pending
Application number
CN201810659528.8A
Other languages
Chinese (zh)
Inventor
沈建兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Baishikang Medical Devices Co Ltd
Original Assignee
Suzhou Baishikang Medical Devices Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Baishikang Medical Devices Co Ltd filed Critical Suzhou Baishikang Medical Devices Co Ltd
Priority to CN201810659528.8A priority Critical patent/CN108969810A/en
Publication of CN108969810A publication Critical patent/CN108969810A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71Suction drainage systems
    • A61M1/74Suction control
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71Suction drainage systems
    • A61M1/74Suction control
    • A61M1/743Suction control by changing the cross-section of the line, e.g. flow regulating valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • A61M2205/3334Measuring or controlling the flow rate

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention discloses a kind of automatic jet control devices, current limliting fixing seat including hollow cylinder, groove is equipped on the inside of the current limliting fixing seat, current limiting jacking part built in the groove, one end far from the current limliting fixing seat inside center of the current limliting jacking part connects pushing mechanism, the pushing mechanism connects converter, the converter includes digital analog converter and analog-digital converter, the converter is connect with control unit, the color difference measurement fixed ring of one end connection hollow cylindrical of the current limliting fixing seat, the color difference measurement fixed ring inner sidewall is equipped with color difference inductor, the color difference inductor is electrically connected with the converter.Automatic jet control device structure of the invention is simple, and automatization level is high, flexibly and can accurately insure that drainage safety.

Description

Automatic drainage control device
Technical Field
The invention relates to the technical field of medical equipment, in particular to an automatic drainage control device.
Background
When a critically ill patient drains liquid in vivo to the outside of the body, parameters (such as drainage rate, drainage liquid amount and the like) in the drainage process are generally required to be quantified, and the drainage is ensured to be safely carried out as far as possible. In the traditional medical drainage process, medical staff are required to check, observe, summarize and judge the drainage liquid outflow condition in real time, and further judge the content of the solution in the body and the rehabilitation condition of a patient, but the drainage mode has higher requirements on the experience of the medical staff and cannot objectively and timely process measures which should be taken under the conditions of different drainage parameters.
On the other hand, when drainage is performed, medical staff are often required to observe the drainage condition, and under the condition that one medical staff needs to monitor a plurality of patients at the same time, the patients are not monitored in time, necessary measures are taken, more adverse results are caused to the patients, and even the life health of the patients is endangered.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides an automatic drainage control device which is simple in structure, high in automation level and capable of flexibly and accurately ensuring drainage safety.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides an automatic drainage control device, includes hollow cylindrical current-limiting fixing base, current-limiting fixing base inboard is equipped with the recess, the recess embeds there is current-limiting jack-up portion, keeping away from of current-limiting jack-up portion pushing mechanism is connected to the one end at the inside center of current-limiting fixing base, pushing mechanism connects the converter, the converter includes digital analog converter and analog to digital converter, the converter is connected with the control unit, the solid fixed ring of hollow cylindrical colour difference survey is connected to the one end of current-limiting fixing base, the solid fixed ring inside wall of colour difference survey is equipped with the colour difference inductor, the colour difference inductor with the converter electricity is connected.
Preferably, the pushing mechanism comprises a pushing rod, a connecting hole is formed in the side wall of the current-limiting fixing seat, the connecting hole is communicated with the groove, a sliding shaft sleeve is fixed on the connecting hole, the sliding shaft sleeve penetrates through the connecting hole and is fixed on the side wall of the current-limiting fixing seat, one end of the pushing rod penetrates through the sliding shaft sleeve and is connected with the current-limiting jacking portion, the pushing rod can push the current-limiting jacking portion to slide along the direction perpendicular to the side wall of the current-limiting fixing seat, the other end of the pushing rod is connected with a pneumatic propulsion assembly, and the pneumatic propulsion assembly is electrically connected with the converter.
Preferably, the pneumatic propeller assembly comprises a propeller fixing seat and a button cell, an isolation plate is arranged inside the propeller fixing seat, the isolation plate isolates the propeller fixing seat into a button cell fixing cabin and a pressure cabin, an air vent is formed in the isolation plate and communicated with the button cell fixing cabin and the pressure cabin, the button cell is fixed inside the button cell fixing cabin, a push plate is arranged in the pressure cabin, the push plate is far away from one side of the isolation plate and connected with a push rod, the button cell is connected with a pneumatic controller, and the pneumatic controller is electrically connected with a converter.
Preferably, the propeller fixing seat is provided with an air outlet, the air outlet is externally connected with an exhaust valve, an exhaust hole is formed in the exhaust valve, the exhaust valve is connected with an adjusting rod, one end of the adjusting rod is provided with a ventilation adjusting hole, the ventilation adjusting hole is arranged in the exhaust hole, the other end of the adjusting rod is connected with a driving cylinder, and the driving cylinder is electrically connected with the converter.
Preferably, the other end of the current-limiting fixed seat is connected with a hollow cylindrical flow measurement fixed ring, a flow measurement detector is arranged on the inner side wall of the flow measurement fixed ring, and the flow measurement detector is electrically connected with the converter.
Preferably, the flow rate measurement fixing ring and the chromatic aberration measurement fixing ring are respectively screwed to the end of the flow-limiting fixing base.
After adopting the structure, compared with the prior art, the automatic drainage control device has the following advantages:
(1) the device utilizes the phenomenon that the button cell (such as a lead storage battery) can generate hydrogen under specific conditions (such as short circuit and charging process), utilizes the generated hydrogen to control the driving force, can keep the pressure state for a long time without continuously consuming electric energy when the pressure reaches a fixed value, and is more energy-saving and environment-friendly;
(2) by using the device, corresponding measures can be taken in time in the abnormal drainage state, so that more safety guarantee is provided for the drainage process;
(3) the control unit is used for automatically controlling the whole device, so that the medical efficiency is greatly improved, and the requirement of high efficiency and convenience for people is met;
(4) the device is simple, has high automation degree, reduces the monitoring pressure of medical staff, reduces the medical risk, and has convenient carrying and high use flexibility.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial cross-sectional view of the discharge valve;
wherein,
1. the flow measuring device comprises a flow-limiting fixed seat, 2 a groove, 3 a flow-limiting jacking part, 4 a converter, 5 a control unit, 6 a color difference measuring fixed ring, 7 a color difference sensor, 8 a push rod, 9 a sliding shaft sleeve, 10 a propeller fixed seat, 11 a button cell, 12 a separation plate, 13 a button cell fixed cabin, 14 a pressure cabin, 15 a push plate, 16 a pneumatic controller, 17 an exhaust valve, 18 an exhaust hole, 19 an adjusting rod, 20 a ventilation adjusting hole, 21 a driving cylinder, 22 a flow measuring fixed ring and 23 a flow measuring detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an automatic drainage control device which comprises a hollow cylindrical current-limiting fixed seat 1, wherein a groove 2 is arranged on the inner side of the current-limiting fixed seat 1, a current-limiting jacking part 3 is arranged in the groove 2, one end, far away from the inner center of the current-limiting fixed seat 1, of the current-limiting jacking part 3 is connected with a pushing mechanism, the pushing mechanism is connected with a converter 4, the converter 4 comprises a digital-to-analog converter and an analog-to-digital converter, the converter 4 is connected with a control unit 5, one end of the current-limiting fixed seat 1 is connected with a hollow cylindrical color difference determination fixed ring 6, a color difference sensor 7 is arranged on the inner side wall of the color difference determination fixed ring 6, and.
Push mechanism includes catch bar 8, be equipped with the connecting hole on the 1 lateral wall of current-limiting fixing base, the connecting hole with recess 2 intercommunication, be fixed with slip axle sleeve 9 on the connecting hole, slip axle sleeve 9 runs through the connecting hole is fixed on the 1 lateral wall of current-limiting fixing base, the one end of catch bar 8 runs through slip axle sleeve 9 with current-limiting jack-up portion 3 is connected, catch bar 8 can promote current-limiting jack-up portion 3 makes it slide along 1 lateral wall direction of perpendicular current-limiting fixing base, the other end of catch bar 8 is connected with the pneumatic subassembly that impels, the pneumatic subassembly that impels with converter 4 electricity is connected.
Pneumatic propeller subassembly includes propeller fixing base 10 and button cell 11, propeller fixing base 10 is inside to be equipped with division board 12, division board 12 will propeller fixing base 10 is kept apart for button cell stationary bin 13 and pressure cabin 14, be equipped with the air vent on the division board, the air vent intercommunication button cell stationary bin and pressure cabin, hydrogen get into in the pressure cabin 14 by this air vent when button cell release hydrogen, button cell 11 is fixed inside the button cell stationary bin 13, 14 is equipped with push pedal 15 in the pressure cabin, push pedal 15 keeps away from one side of division board 12 with catch bar 8 is connected, button cell 11 connects pneumatic controller 16, pneumatic controller 16 is connected with converter 4 electricity. The control unit 5 controls the pneumatic controller 16 by sending a signal to the converter 4, and then adjusts and controls the hydrogen release amount of the button cell by the pneumatic controller 16 to achieve the purpose of controlling the pressure, and under the pushing of the pressure, the push rod 8 extrudes the flow-limiting jacking part 3 to further extrude the drainage tube to achieve the purpose of limiting or preventing drainage.
Be equipped with the venthole on propeller fixing base 10, the outer discharge valve 17 of venthole, the inside exhaust hole 18 that is equipped with of discharge valve 17, discharge valve 17 connects regulation pole 19, the one end of adjusting pole 19 is equipped with the regulation hole of ventilating 20, place in the regulation hole of ventilating 20 in the exhaust hole 18, the other end of adjusting pole 19 is connected and is driven actuating cylinder 21, drive actuating cylinder 21 with the converter 4 electricity is connected. The overlapped part of the exhaust hole 18 and the ventilation adjusting hole 20 is a ventilation and circulation channel, the size of the ventilation and circulation channel for charging and discharging air is determined by controlling the overlapped area between the exhaust hole 18 and the ventilation adjusting hole 20 (namely, the dotted filling part in fig. 2, and the ventilation adjusting hole 20 is shown to slide left and right in fig. 2 to achieve the adjustment purpose), and the air discharging speed can be flexibly controlled in the air discharging process needing to reduce the pressure.
The other end of the current-limiting fixed seat 1 is connected with a hollow cylindrical flow measurement fixed ring 22, a flow measurement detector 23 is arranged on the inner side wall of the flow measurement fixed ring 22, and the flow measurement detector 23 is electrically connected with the converter 4. The flow measuring fixing ring 22 and the chromatic aberration measuring fixing ring 6 are respectively in threaded connection with the end part of the current-limiting fixing base. The threaded connection mode enables the positions of the flow measuring fixing ring 22 and the chromatic aberration measuring fixing ring 6 to be more accurate, further increases the monitoring of relevant data in the drainage process, increases the accuracy and improves the medical level.
The working principle is as follows:
the drainage tube penetrates through the color difference measuring fixing ring 6, the current-limiting fixing seat 1 and the flow measuring fixing ring 22 in sequence, and drainage liquid is led out of the drainage tube.
Before using, color difference inductor 7 can be in real time through the change control of drainage liquid's colour in the drainage tube and acquire the information that drainage liquid colour changes, it is before the drainage begins, the control unit 5 has preset programming language, if can normally drain when drainage liquid colour in a certain specific scope, can normally drain when drainage speed in a certain specific scope, in case exceed above-mentioned predetermined value or not in corresponding numerical value range, the control unit 5 sends and stops or restricts drainage in the drainage tube, after stopping or the current-limiting, wait for medical personnel's subsequent processing, prevent that the drainage is improper, cause more serious medical problem.
When the medical staff does not monitor in time that measures cannot be taken, if the color of the drainage liquid is abnormal (such as the blood color component is high in the drainage process, namely the drained liquid contains blood with high concentration and the like), the refractive index of the liquid in the drainage tube changes correspondingly, the color difference sensor 7 senses the signal at the moment, the signal passes through the converter 4 and the control unit 5 in sequence, after the control unit 5 obtains information, the control unit 5 sends the signal to the converter 4 to control the pneumatic controller 16, then the pneumatic controller 16 adjusts and controls the amount of hydrogen released by the button cell 11, the released hydrogen enters the pressure chamber 14, under the pushing of pressure, the push rod 8 extrudes the current-limiting jacking part 3 to further extrude the drainage tube, the drainage tube deforms to prevent or limit the delivery of the drainage liquid, and after the drainage is prevented or limited, the follow-up treatment of the medical staff is waited, on one hand, medical accidents which are caused by improper drainage and even endanger life and health are effectively prevented, on the other hand, diseases such as infection and the like caused by overflow of drainage liquid are also prevented, the automatic control level is higher, and the probability of medical risks is reduced.
After the drainage abnormity is processed, when normal drainage is needed, at the moment, a signal for recovering normal work is converted into a language which can be identified by the driving cylinder 21 through the converter 4 by the control unit 5, the driving cylinder 21 is started, the adjusting rod 19 is moved, the exhaust hole 18 is partially overlapped with the ventilation adjusting hole 20, redundant hydrogen is discharged, the pressure is reduced, and the drainage tube is recovered to the drainage state.
In the continuous washing and drainage operation, when medical staff cannot take measures without timely monitoring, the drainage speed of drainage liquid is monitored, so that on one hand, the content of the drained liquid can be calculated, the drained body fluid is in a normal range, and if the drainage speed exceeds a preset range, drainage needs to be prevented or limited; on the other hand, when the inside of the drainage tube is blocked, drainage can not be normally carried out, and drainage prevention measures can be taken in time.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. An automatic drainage control device which characterized in that: including hollow columniform current-limiting fixing base, current-limiting fixing base inboard is equipped with the recess, the recess embeds there is current-limiting jack-up portion, keeping away from of current-limiting jack-up portion pushing mechanism is connected to the one end at the inside center of current-limiting fixing base, pushing mechanism connects the converter, the converter includes digital analog converter and analog to digital converter, the converter is connected with the control unit, the solid fixed ring of hollow columniform colour difference survey is connected to the one end of current-limiting fixing base, the solid fixed ring inside wall of colour difference survey is equipped with the colour difference inductor, the colour difference inductor with the converter electricity is.
2. The automatic drain control device of claim 1, wherein: the pushing mechanism comprises a pushing rod, a connecting hole is formed in the side wall of the current-limiting fixing seat, the connecting hole is communicated with the groove, a sliding shaft sleeve is fixed to the connecting hole, the sliding shaft sleeve penetrates through the connecting hole and is fixed to the side wall of the current-limiting fixing seat, one end of the pushing rod penetrates through the sliding shaft sleeve and is connected with the current-limiting jacking portion, the pushing rod can push the current-limiting jacking portion to slide along the direction perpendicular to the side wall of the current-limiting fixing seat, the other end of the pushing rod is connected with a pneumatic propulsion assembly, and the pneumatic propulsion assembly is electrically connected with the converter.
3. The automatic drain control device of claim 2, wherein: the pneumatic propeller component comprises a propeller fixing seat and a button cell, wherein a partition plate is arranged inside the propeller fixing seat, the partition plate is used for isolating the propeller fixing seat into a button cell fixing cabin and a pressure cabin, an air vent is formed in the partition plate and communicated with the button cell fixing cabin and the pressure cabin, the button cell is fixed inside the button cell fixing cabin, a push plate is arranged in the pressure cabin, the push plate is far away from one side of the partition plate and connected with a push rod, the button cell is connected with a pneumatic controller, and the pneumatic controller is electrically connected with a converter.
4. The automatic drainage control device of claim 3, wherein: be equipped with the venthole on the propeller fixing base, the outer discharge valve of venthole, the inside exhaust hole that is equipped with of discharge valve, discharge valve connects the regulation pole, the one end of adjusting the pole is equipped with the regulation hole of ventilating, place in the regulation hole of ventilating in the exhaust hole, the other end of adjusting the pole is connected and is driven actuating cylinder, drive actuating cylinder with the converter electricity is connected.
5. The automatic drain control device of claim 1, wherein: the other end of the current-limiting fixing seat is connected with a hollow cylindrical flow measurement fixing ring, a flow measurement detector is arranged on the inner side wall of the flow measurement fixing ring, and the flow measurement detector is electrically connected with the converter.
6. The automatic drainage control device of claim 4, wherein: the flow measurement fixing ring and the chromatic aberration measurement fixing ring are respectively in threaded connection with the end part of the current-limiting fixing seat.
CN201810659528.8A 2018-06-25 2018-06-25 A kind of automatic jet control device Pending CN108969810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810659528.8A CN108969810A (en) 2018-06-25 2018-06-25 A kind of automatic jet control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810659528.8A CN108969810A (en) 2018-06-25 2018-06-25 A kind of automatic jet control device

Publications (1)

Publication Number Publication Date
CN108969810A true CN108969810A (en) 2018-12-11

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Application Number Title Priority Date Filing Date
CN201810659528.8A Pending CN108969810A (en) 2018-06-25 2018-06-25 A kind of automatic jet control device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109939331A (en) * 2019-04-18 2019-06-28 常州市第二人民医院 One kind can monitor pipeline timing squeezer
CN110693624A (en) * 2019-11-05 2020-01-17 江汉大学 Animal experiment catheterization device
CN111658844A (en) * 2020-07-03 2020-09-15 浙江省肿瘤医院 Intelligent drainage control valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2056718U (en) * 1989-09-06 1990-05-02 北京市西山孵化设备厂 Plastic diaphragm control valve for diaphragm cylinder
WO2011116393A1 (en) * 2010-03-19 2011-09-22 University Of Washington Drainage systems for excess body fluids
CN103133713A (en) * 2011-11-28 2013-06-05 北京长峰金鼎科技有限公司 Vibrating type pinch valve capable of consecutively adjusting open degree
CN103453167A (en) * 2013-08-30 2013-12-18 广州柴油机厂股份有限公司 Quantitative control valve of fuel gas entering cylinder on gas engine
CN105142697A (en) * 2013-03-15 2015-12-09 德卡产品有限公司 System, method, and apparatus for monitoring, regulating, or controlling fluid flow
CN107497004A (en) * 2017-10-10 2017-12-22 西安汇智医疗集团有限公司 A kind of intelligent drainage of cerebrospinal fluid control and identification alarm system
CN107503951A (en) * 2017-10-12 2017-12-22 泽尼特泵业(苏州)有限公司 A kind of electronic type automatic oiling submersible pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2056718U (en) * 1989-09-06 1990-05-02 北京市西山孵化设备厂 Plastic diaphragm control valve for diaphragm cylinder
WO2011116393A1 (en) * 2010-03-19 2011-09-22 University Of Washington Drainage systems for excess body fluids
CN103133713A (en) * 2011-11-28 2013-06-05 北京长峰金鼎科技有限公司 Vibrating type pinch valve capable of consecutively adjusting open degree
CN105142697A (en) * 2013-03-15 2015-12-09 德卡产品有限公司 System, method, and apparatus for monitoring, regulating, or controlling fluid flow
CN103453167A (en) * 2013-08-30 2013-12-18 广州柴油机厂股份有限公司 Quantitative control valve of fuel gas entering cylinder on gas engine
CN107497004A (en) * 2017-10-10 2017-12-22 西安汇智医疗集团有限公司 A kind of intelligent drainage of cerebrospinal fluid control and identification alarm system
CN107503951A (en) * 2017-10-12 2017-12-22 泽尼特泵业(苏州)有限公司 A kind of electronic type automatic oiling submersible pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109939331A (en) * 2019-04-18 2019-06-28 常州市第二人民医院 One kind can monitor pipeline timing squeezer
CN110693624A (en) * 2019-11-05 2020-01-17 江汉大学 Animal experiment catheterization device
CN111658844A (en) * 2020-07-03 2020-09-15 浙江省肿瘤医院 Intelligent drainage control valve

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Application publication date: 20181211