CN108096660A - A kind of flushing aspirator of pressure adjustable - Google Patents

A kind of flushing aspirator of pressure adjustable Download PDF

Info

Publication number
CN108096660A
CN108096660A CN201810015361.1A CN201810015361A CN108096660A CN 108096660 A CN108096660 A CN 108096660A CN 201810015361 A CN201810015361 A CN 201810015361A CN 108096660 A CN108096660 A CN 108096660A
Authority
CN
China
Prior art keywords
pressure
main component
pressure regulating
flushing aspirator
work head
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
CN201810015361.1A
Other languages
Chinese (zh)
Inventor
刘鸿箫
尤斌
凌云鹏
谢斌
方颖
李红武
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.)
Germany Opi Surgical Instruments Ltd
Rotmain (beijing) Medical Equipment Development Co Ltd
Original Assignee
Germany Opi Surgical Instruments Ltd
Rotmain (beijing) Medical Equipment Development 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 Germany Opi Surgical Instruments Ltd, Rotmain (beijing) Medical Equipment Development Co Ltd filed Critical Germany Opi Surgical Instruments Ltd
Priority to CN201810015361.1A priority Critical patent/CN108096660A/en
Publication of CN108096660A publication Critical patent/CN108096660A/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
    • A61M3/00Medical syringes, e.g. enemata; Irrigators
    • A61M3/02Enemata; Irrigators
    • A61M3/0233Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs
    • A61M3/0237Enemata; Irrigators characterised by liquid supply means, e.g. from pressurised reservoirs the pressure being generated in the reservoir, e.g. by gas generating tablets
    • 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
    • A61M3/00Medical syringes, e.g. enemata; Irrigators
    • A61M3/02Enemata; Irrigators
    • A61M3/0279Cannula; Nozzles; Tips; their connection means
    • 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
    • A61M2205/3337Controlling, regulating pressure or flow by means of a valve by-passing a pump

Landscapes

  • Health & Medical Sciences (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)
  • External Artificial Organs (AREA)

Abstract

A kind of flushing aspirator of pressure adjustable, it includes main component and the connecting tube connected with main component and work head, the slow storage chamber connected respectively with connecting tube and work head is equipped in main component, is additionally provided on main component with the pressure regulation chamber modules of slow chamber and coordinates the pressure regulating valve component for adjusting work head operating pressure with the pressure regulation chamber modules;The pressure regulation chamber modules include several regulator holes being located on main component, and the pressure regulating cavity with the cooperation of pressure regulating valve component is communicated between regulator hole and slow storage chamber;Pressure regulating valve component includes the control valve with pressure regulating cavity cooperation, and control valve is fixedly connected with a slide-and-guide bar set along main component length direction;Slide-and-guide bar is arranged a guide sleeve away from one end periphery of control valve.The present invention is a kind of simpler integral flushing aspirator compact, use scope is wide of structure, and operating pressure flexible adjustment is convenient, improves convenience and reliability that flushing aspirator uses, beneficial to the efficiency for improving operation.

Description

A kind of flushing aspirator of pressure adjustable
Technical field
The present invention relates to medical irrigation aspirator tool, especially a kind of flushing aspirator of pressure adjustable.
Background technology
Watery blood or impurity foreign matter at wound are rinsed in operation causes visual area clear, and key effect is played to the success of operation; Flusher and aspirator pipeline separate in conventional method, and conduit is long and more, cumbersome, turn especially between I & A It changes and is used to replace conduit, it is necessary to consume the plenty of time, greatly extend operating time, add the danger of operation.
In order to solve this problem, those skilled in the art devise the integral flushing that structure is more compact, highly practical Aspirator, representative structure integral flushing aspirator as disclosed in Chinese patent ZL200910127513.8, it is whole by Hard rinses suction tube and soft flush pipe, soft suction tube composition, and it is straight tube that the hard, which rinses suction tube leading portion, and back segment is Bend pipe is separated into I & A two passes in straight tube, and in back segment bifurcated respectively into bend pipe, the end of bend pipe is in two passes Vertebra shape mouth connects respectively with the soft flush pipe, soft suction tube;It is opened above the irrigation channel of straight tube equipped with a push button It closes, is opened when water outlet is needed, to regulate and control water yield;Attraction channel one end of straight tube is porous opening, is so not easy handle Tissue sucking.
However the structure still has the technical issues of larger, especially flush pipe and suction tube point in specific implementation From having a higher requirement to operation operating surface, actual use limitation is larger, and operating process is complicated;On the other hand, either It rinses or attracts all in accordance with different situation adjusting work pressures, traditional type is controlled by pumping source, however pump work pressure Power to the head that works needs pipeline connection, and the pressure loss is larger, it is difficult to accomplish to accurately control, operating pressure adjusts difficulty also very greatly, Reduce the efficiency and quality of surgical procedure.
The content of the invention
The object of the present invention is to provide a kind of flushing aspirator of pressure adjustable, it have it is compact-sized, easy to adjust and Control the advantages of reliable and stable.
The present invention is achieved like this, a kind of flushing aspirator of pressure adjustable, it includes main component and and main body The connecting tube of part connection and work head, which is characterized in that the slow storage connected respectively with connecting tube and work head is equipped in main component Chamber, is additionally provided on main component with the pressure regulation chamber modules of slow chamber and coordinates with the pressure regulation chamber modules and adjust work head The pressure regulating valve component of operating pressure.
The pressure regulation chamber modules include several regulator holes being located on main component, are connected between regulator hole and slow storage chamber There is the pressure regulating cavity with the cooperation of pressure regulating valve component.
The pressure regulating valve component includes the control valve with pressure regulating cavity cooperation, and control valve is fixedly connected with one along main body The slide-and-guide bar that part length direction is set;Slide-and-guide bar is arranged a guide sleeve away from one end periphery of control valve, is oriented to Slide-and-guide bar periphery between set and control valve is also surrounded with spring.
The pressure regulating valve component further includes the slidable adjustment set that guide sleeve is driven to be slided along slide-and-guide bar;It should Slidable adjustment set is slidably connected with the guide groove set along main component length direction, and several are additionally provided on main component and is fixed Slidable adjustment covers the gear of position.
Preferably:The pressure regulating valve component further includes the silk that guide sleeve is driven to be slided along slide-and-guide bar Bar, one end of the screw are connected with guide sleeve screw drive, and the output shaft of the other end and motor is sequentially connected.
Preferably:The main component is connected with the screw thread with the cooperation of main component inner thread away from one end of work head Pipe;The screwed pipe is equipped with gear item, other end closing close to one end of guide sleeve, and is also associated with driving its rotation on screwed pipe Spiral arm.
Preferably:One end that the main component deviates from work head is also associated with dismountable tail-hood.
Beneficial effects of the present invention are:The present invention is a kind of wide integration stamped of the simpler compact, use scope of structure Aspirator is washed, suction tube and flush pipe are integrated on a work head by it, disclosure satisfy that the operation needs of various wound faces;Together When by delay storage chamber 3 design so that work head will not be directly delivered to by coming from the active force of connecting tube, and then act on wound Hinder face, but make work head that there is suitable operating pressure after the buffering of too slow storage chamber, pressure regulation;On the other hand, pressure regulation is passed through The cooperation of chamber modules and pressure regulating valve component can adjust slow storage chamber warp in real time during instrumentation according to different needs Pressure regulation chamber modules and external gap, and then change the pressure adjusted in slow storage chamber, so that work head has and can flexibly adjust The operating pressure of section improves convenience and reliability that flushing aspirator uses, beneficial to the efficiency for improving operation.
Description of the drawings
Fig. 1 is the Structure explosion diagram of one embodiment of the invention.
Fig. 2 is the Standard figure of embodiment illustrated in fig. 1.
Fig. 3 is structure diagram when embodiment illustrated in fig. 1 works.
Fig. 4 is main component middle gear of the present invention and the positional structure schematic diagram of guide groove.
Fig. 5 is the attachment structure schematic diagram of slidable adjustment set and gear and guide groove.
Structure diagram when Fig. 6 is second of embodiment work of the present invention.
Structure diagram when Fig. 7 is the third embodiment work of the invention.
In the figure 1, connecting tube 2, work is first 3, main component 4, control valve 5, slide-and-guide bar 6, spring 7, slidable adjustment Set 8, guide sleeve 9, tail-hood 10, screw 11, motor 12, screwed pipe.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings.
As shown in Figs. 1-5, it is so to realize that the present invention, which is, and the flushing aspirator of the pressure adjustable includes main component 3 And the connecting tube 1 that is connected with main component 3 and work first 2, be structurally characterized in that, be equipped in main component 3 respectively with connecting tube 1 and The slow storage chambers 301 of first 2 connection of work, be additionally provided on main component 3 the pressure regulation chamber modules that are connected with slow storage chamber 301 and with the tune Chamber modules cooperation is pressed to adjust the pressure regulating valve component of first 2 operating pressure of work;When operating control, connecting tube 1 and outside Pump is connected, for that first flushing liquid of 2 conveying with certain pressure intensity of slow storage chamber 301 and work, can also be generated by pumping Negative pressure by work it is first 2 attract operation in spot;On the one hand due to the design of slow storage chamber 301 so that come from connecting tube 1 Active force will not be directly delivered to work first 2, and then act on wound face, but make after the buffering of too slow storage chamber 301, pressure regulation Work first 2 has suitable operating pressure;On the other hand, by the cooperation of pressure regulation chamber modules and pressure regulating valve component, in device Slow storage chamber 301 can be adjusted in tool operating process in real time according to different needs through pressure regulation chamber modules and external gap, and then Change the pressure adjusted in slow storage chamber 301 so that work first 2 have can flexible modulation operating pressure.
The key structure of the present invention is pressure regulation chamber modules, pressure regulating valve component and pressure regulation chamber modules and pressure regulator valve The locations of structures design of door component, in the specific implementation, one of the pressure regulation chamber modules implements structure such as Fig. 2 and Fig. 3 institutes Show, it includes several regulator holes 303 being located on main component 3, is communicated between regulator hole 303 and slow storage chamber 301 and pressure regulation The pressure regulating cavity 302 of valve member cooperation;So connected due to delaying storage chamber 301 by pressure regulating cavity 302 through regulator hole 303 with outside, As long as the gap size that control pressure regulating cavity 302 is connected with outside, it is possible to flexibly change in the case of 1 invariablenes pressure of liquid of connecting tube The pressure of slow storage chamber 301, and then adjust the operating pressure of work first 2;The implementation structure of certain pressure regulation chamber modules not office Be limited to this, in actual design, if the pressure regulation chamber modules can be connected between slow storage chamber 301 and outside, and with tune The cooperation of pressure valve component changes slow storage chamber 301 and the size of external communication gap.
In order to improve the convenience for controlling to adjust operation, the present invention, which is also optimized the structure of pressure regulating valve component, to be set Meter particularly may be divided into following three kinds of implementation structure;
The pressure regulating valve component includes the control valve 4 coordinated with pressure regulating cavity 302, and control valve 4 is fixedly connected with one The slide-and-guide bar 5 set along 3 length direction of main component;Slide-and-guide bar 5 is arranged one away from one end periphery of control valve 4 and leads To set 8,5 periphery of slide-and-guide bar between guide sleeve 8 and control valve 4 is also surrounded with spring 6;As long as so mobile guide set 8, it is made to be moved along slide-and-guide bar 5 to control valve 4, guide sleeve 8 can compress spring 6, and the elastic force using spring 6 is compeled Control valve 4 is made constantly to tie up pressure regulating cavity 302, and then reduces the gap that regulator hole 303 is connected with slow storage chamber 301, is thus changed The pressure of slow storage chamber 301 is become.
Based on said structure, in one embodiment of the pressure regulating valve component, it include for drive guide sleeve 8 along The slidable adjustment set 7 that slide-and-guide bar 5 slides;Slidable adjustment set 7 and the guide groove set along 3 length direction of main component 305 are slidably connected, and several are additionally provided on main component 3 and fixes the gear 304 that slidable adjustment covers 7 positions, such as Fig. 4 and Fig. 5 institutes Show;It is so moved by 7 drive guide sleeve 8 of slidable adjustment set, slidable adjustment set 7 is located at outside main component 3, operation movement It is more convenient, slidable adjustment set 7 is fixed with screens due to being provided with multiple gears 304 on main component 3, slidable adjustment covers 7 edges It after guide groove 305 slides into suitable position and is secured on corresponding gear 304, it is simple in structure, it is easy to control, rationally The quantity of gear 304 is set to be remarkably improved the precision of pressure adjusting.
Certainly, in order to preferably meet the needs of digitlization, automation control, the pressure regulating valve component can also use Second of embodiment, specifically as shown in fig. 6, the pressure regulating valve component further includes to drive guide sleeve 8 along slide-and-guide bar 5 The screw 10 of slip, one end of the screw 10 are connected with 8 screw drive of guide sleeve, and the output shaft transmission of the other end and motor 11 connects It connects;As long as so control the rotation of motor 11, it is possible to the flexible of guide sleeve 8 is driven through screw 10, and then according to above-mentioned principle Change the pressure of slow storage chamber 301.In order to improve the closure of instrument and maintainability, in above-mentioned two embodiment, the main body One end that part 3 deviates from work first 2 is also associated with dismountable tail-hood 9.
In order to be further simplified structure, pressure regulating valve component of the present invention can also use the third embodiment, described such as Fig. 7 Shown, the main component 3 is connected with the screwed pipe 12 with the cooperation of 3 inner thread of main component away from one end of work first 2;The screw thread Pipe 12 is equipped with gear item 1201, other end closing close to one end of guide sleeve 8, and is also associated with driving its rotation on screwed pipe 12 Spiral arm 1202;As long as by 1202 rotated threaded tubular 12 of spiral arm, under helicitic texture cooperation, screwed pipe 12 will be along main body 3 inner wall of part stretches, and then using gear item 1201 guide sleeve 8 is promoted to move, and changes the pressure of slow storage chamber 301 according to above-mentioned principle By force.
By taking flushing process as an example, when practical operation designs, the connector of connecting tube 1 is general female Luer, product By the way that flushing liquid is injected into slow storage chamber 301 into connecting tube 1, promoted using slidable adjustment set 7, screw 10 or screwed pipe 12 Guide sleeve 8 moves, and when guide sleeve 8 gets over forward compression springs 6, obtained pressure will be bigger in slow storage chamber 301, so that First 2 hydraulic pressure gone out must be worked also can be bigger, conversely, the water that work first 2 is gone out will become smaller, so by adjusting spring The pressure of 6 pairs of control valves 4 adjusts the flushing pressure of work first 2.The flushing aspirator is simple in structure, operates conveniently, Meet the needs of medical staff by different flushing pressures, solve normal developing aspirator pressure it is unadjustable or adjust Press the problems such as cumbersome.

Claims (7)

1. a kind of flushing aspirator of pressure adjustable, it includes main component (3) and the connecting tube (1) connected with main component (3) With work head (2), which is characterized in that be equipped with the slow storage chamber connected respectively with connecting tube (1) and work head (2) in main component (3) (301), the pressure regulation chamber modules connected with slow storage chamber (301) are additionally provided on main component (3) and are matched somebody with somebody with the pressure regulation chamber modules Close the pressure regulating valve component for adjusting work head (2) operating pressure.
2. the flushing aspirator of pressure adjustable as described in claim 1, which is characterized in that the pressure regulation chamber modules include being located at Several regulator holes (303) on main component (3), are communicated with and pressure regulating valve group between regulator hole (303) and slow storage chamber (301) The pressure regulating cavity (302) of part cooperation.
3. the flushing aspirator of pressure adjustable as claimed in claim 2, which is characterized in that the pressure regulating valve component includes and tune The control valve (4) that chamber (302) is pressed to coordinate, control valve (4) are fixedly connected with a cunning set along main component (3) length direction Action-oriented bar (5);
Slide-and-guide bar (5) is arranged a guide sleeve (8), guide sleeve (8) and control valve away from one end periphery of control valve (4) (4) slide-and-guide bar (5) periphery between is also surrounded with spring (6).
4. the flushing aspirator of pressure adjustable as claimed in claim 3, which is characterized in that the pressure regulating valve component further includes use In the slidable adjustment set (7) that driving guide sleeve (8) is slided along slide-and-guide bar (5);
The slidable adjustment set (7) is slidably connected with the guide groove (305) set along main component (3) length direction, and main component (3) several gears (304) for fixing slidable adjustment set (7) position are additionally provided on.
5. the flushing aspirator of pressure adjustable as claimed in claim 3, which is characterized in that the pressure regulating valve component further includes use In the screw (10) that driving guide sleeve (8) is slided along slide-and-guide bar (5), one end and guide sleeve (8) spiral shell of the screw (10) Line is drivingly connected, and the output shaft of the other end and motor (11) is sequentially connected.
6. the flushing aspirator of pressure adjustable as claimed in claim 3, which is characterized in that the main component (3) deviates from work head (2) one end is connected with the screwed pipe (12) with the cooperation of main component (3) inner thread;
The screwed pipe (12) is equipped with gear item (1201) close to one end of guide sleeve (8), and the other end is closed, and on screwed pipe (12) It is also associated with the spiral arm (1202) that it is driven to rotate.
7. the flushing aspirator of pressure adjustable as described in any one in claim 1-5, which is characterized in that the main component (3) one end deviated from work head (2) is also associated with dismountable tail-hood (9).
CN201810015361.1A 2018-01-08 2018-01-08 A kind of flushing aspirator of pressure adjustable Pending CN108096660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810015361.1A CN108096660A (en) 2018-01-08 2018-01-08 A kind of flushing aspirator of pressure adjustable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810015361.1A CN108096660A (en) 2018-01-08 2018-01-08 A kind of flushing aspirator of pressure adjustable

Publications (1)

Publication Number Publication Date
CN108096660A true CN108096660A (en) 2018-06-01

Family

ID=62218908

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810015361.1A Pending CN108096660A (en) 2018-01-08 2018-01-08 A kind of flushing aspirator of pressure adjustable

Country Status (1)

Country Link
CN (1) CN108096660A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2365554Y (en) * 1998-12-28 2000-02-23 周慧民 Automatic flow balancing device
CN1345606A (en) * 2000-09-25 2002-04-24 张迎建 Output flow divider for large intestine hydrotherapy instrument
CN101074744A (en) * 2007-06-26 2007-11-21 河海大学 Batch pressure-differential controlling valve
CN101912640A (en) * 2010-08-17 2010-12-15 陈刚 Handheld electric enemator
CN202220689U (en) * 2011-09-26 2012-05-16 温州仁谦汽车油泵有限公司 Novel constant pressure valve
CN203634552U (en) * 2013-10-23 2014-06-11 艾科美医疗器械(深圳)有限公司 Pressure adjusting and limiting type enemator
CN104613223A (en) * 2015-01-30 2015-05-13 胡维毅 Self-acting type manual multifunctional mortar flow regulating valve
CN205781169U (en) * 2016-06-27 2016-12-07 台州中天卫厨有限公司 A kind of micro-hydraulic pressure pressure-stabilizing pressure regulation valve
CN205842179U (en) * 2016-07-28 2016-12-28 吴延勃 Air pressure pump with feeding pressure stabilizing device
CN208426476U (en) * 2018-01-08 2019-01-25 美茵(北京)医疗器械研发有限公司 A kind of flushing aspirator of pressure adjustable

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2365554Y (en) * 1998-12-28 2000-02-23 周慧民 Automatic flow balancing device
CN1345606A (en) * 2000-09-25 2002-04-24 张迎建 Output flow divider for large intestine hydrotherapy instrument
CN101074744A (en) * 2007-06-26 2007-11-21 河海大学 Batch pressure-differential controlling valve
CN101912640A (en) * 2010-08-17 2010-12-15 陈刚 Handheld electric enemator
CN202220689U (en) * 2011-09-26 2012-05-16 温州仁谦汽车油泵有限公司 Novel constant pressure valve
CN203634552U (en) * 2013-10-23 2014-06-11 艾科美医疗器械(深圳)有限公司 Pressure adjusting and limiting type enemator
CN104613223A (en) * 2015-01-30 2015-05-13 胡维毅 Self-acting type manual multifunctional mortar flow regulating valve
CN205781169U (en) * 2016-06-27 2016-12-07 台州中天卫厨有限公司 A kind of micro-hydraulic pressure pressure-stabilizing pressure regulation valve
CN205842179U (en) * 2016-07-28 2016-12-28 吴延勃 Air pressure pump with feeding pressure stabilizing device
CN208426476U (en) * 2018-01-08 2019-01-25 美茵(北京)医疗器械研发有限公司 A kind of flushing aspirator of pressure adjustable

Similar Documents

Publication Publication Date Title
CA1221563A (en) Ultrasonic endodontic dental apparatus
US4278078A (en) Lavage handpiece
US9084846B2 (en) Combination suction regulator for medical use
JPH08238312A (en) Pipe set and irrigation device
EP0287693A1 (en) Apparatus for dental treatment provided with check valve in fluid passage
EP0600942A1 (en) Endoscopic device actuator and method
CN208426476U (en) A kind of flushing aspirator of pressure adjustable
CN108096660A (en) A kind of flushing aspirator of pressure adjustable
JPWO2019013229A1 (en) Suction device with water injection function
CN111714252A (en) Valve conveying device
US3851643A (en) On-off arrangement for a liquid jet hand appliance
CN219109847U (en) Tricuspid valve conveying handle
CN2280497Y (en) Multifunction supersonic operation scalpel
CN212395134U (en) Valve conveying device
CN105852992A (en) Tooth root canal flushing device
DE602004000886D1 (en) Motor-operated flow-regulating liquid valve, in particular for refrigerants
CN114712659A (en) Hydraulic drive type anesthesia boosting instrument
CN210249978U (en) Medical grinding cutter that one hand was buckled
CN211610938U (en) Flushing and sucking assembly
CN211024462U (en) Medical flushing aspirator
CN114306771A (en) Thoracic cavity hydrops drainage puncture device for thoracic oncology department
CN219061971U (en) Electromagnetic pump capable of adjusting pressure and flow
CN209884844U (en) Intracardiac package puncture drawing liquid device for branch of academic or vocational study
JPH0523351A (en) Fluid control valve apparatus for dental handpiece
CN110680980A (en) Medical flushing aspirator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination