CN2576242Y - Medical flushing device - Google Patents
Medical flushing device Download PDFInfo
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- CN2576242Y CN2576242Y CN 02249349 CN02249349U CN2576242Y CN 2576242 Y CN2576242 Y CN 2576242Y CN 02249349 CN02249349 CN 02249349 CN 02249349 U CN02249349 U CN 02249349U CN 2576242 Y CN2576242 Y CN 2576242Y
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- liquid
- storing barrel
- pressure
- liquid storing
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Abstract
The utility model relates to medical flushing equipment, which belongs to a surgery appliance. The utility model comprises a liquid storing barrel, a liquid outlet pipe, an electromagnetic air pump, an air inlet pipe, an air inlet valve, a pressurizing chamber, a non-return air valve, an air pressure inductor, a buzzer and a control circuit, wherein, the interior of the liquid storing barrel is divided into a liquid chamber and a gas chamber by an elastic capsular bag, two outlets are arranged on a rigid casing of the liquid storing barrel, and the elastic capsular bag is connected with one of the outlets. The electromagnetic air pump is connected with the pressurizing chamber by the non-return air valve, the pressurizing chamber is connected with the gas chamber of the liquid storing barrel by the air inlet valve, and the liquid cavity of the liquid storing chamber is connected with the liquid outlet tube which is connected with minimally invasive surgery equipment or a catheter to flush. The air inlet valve is controlled by the air pressure inductor communicated with the gas chamber, and the buzzer is triggered by the air pressure inductor in the pressurizing chamber. The utility model has the advantages of automatic liquid feeding, constant pressure flushing and large capacity of the liquid storing barrel. The medical flushing equipment accords with the principle of sterile operation and automatically alarm before liquid is used up. The utility model is especially suitable for minimally invasive surgery, inspecting auxiliary irrigation and bladder irrigation of urinary surgery.
Description
Technical field this utility model relates to a kind of surgical instruments, particularly relates to a kind of surgery flusher, is particularly useful for the auxiliary flushing and the bladder irrigation of Urology Surgery Minimally Invasive Surgery, inspection.
Background technology is along with the progress of science and technology, and the Minimally Invasive Surgery apparatus is widely used in clinical, particularly in the Urology Surgery field, as resection of prostate art, prostate vaporization electrotomy, cystoscope, ureteroscope, PCN etc.These operations or inspection all need water feeding and washing, and the patient of resection of prostate postoperative and hematuria also needs continuous bladder irrigation.During the heavy hyperabsorption of flushing liquor, can cause the TURP syndrome in the existing known road art, and flushing liquor absorbs heavily with the pressure that washes and becomes positive correlation, the big more art of the pressure of flushing and flow velocity open country is clear more.Therefore, guaranteeing that the art open country clearly under the prerequisite, heavily absorbs for reducing flushing liquor, best selection is flushing pressure 60～80 centimeter water columns (6～8 kPas), 250～350 milliliters of flow velocity per minutes.We change flushing pressure by the height change that hangs the liquid bottle at present, these flushing fluid volumes are big, longer duration, in fact existing water supply installation is equivalent to 500 or 1000 milliliters infusion bottle, in the process of using, need personnel to monitor, open 500 milliliters of transfusion barrel, liquid feeding repeatedly, it is extremely loaded down with trivial details to work.In case cut off the water supply, will cause operative failure or catheter to be stopped up by clot, increase patient's misery.
In the prior art Chinese patent application number for the CN93205930 denomination of invention for the resection of prostate water supply installation discloses a kind of medical operation equipment.By water supply container, syringe pipe, syringe pipe control valve, water container, connect the negative pressure trachea of negative pressure device and valve, water inlet pipe and the water intaking valve of negative pressure trachea, the controlled valve between water container and the water supply container is formed.This device does not solve the water resources problem that supplies water, because in the art, postoperative irrigation liquid is physiological saline solution, 5% glucose solution or 4% mannitol solution, 500 milliliters of present used dosage form heap(ed) capacities, a large amount of flushings needs manually to prepare in advance, there is secondary pollution problem, has only when running into emergency operation constantly to add water; Pipeline, valve are many, are unfavorable for sterilization; The negative pressure pipe communicates with outside air, is unfavorable for the state that keeps aseptic; Pressure is uncontrollable during flushing, increases the syndromic danger of TURP takes place.
Chinese patent application number is that a kind of multipurpose operation flushing and suction machine discloses a kind of medical operation equipment for the CN90216851 denomination of invention, particularly multipurpose operation flushing and suction machine is made up of sluice gun, syringe pipe, trachea, suction catheter, roll-in pump, liquid containing bottle, gas control switch, air pump, vacuum meter, negative pressure pump, decelerator, motor, controllable silicon regulator, transformator and on and off switch.Wherein, sluice gun is formed towards the suction pipe road by being connected with roll-in pump, liquid containing bottle towards suction pipe; Connect to form pneumatic pipeline by trachea and gas control switch, air pump, by suction catheter and liquid containing bottle, suction adjusting knob, vacuum meter, negative pressure pump connect, and form to attract pipeline.Negative pressure pump, air pump, motor, pneumatic switch, controllable silicon regulator, transformator and power supply are connected.This equipment can not be controlled the pressure of flushing, and the liquid containing bottle capacity is little, needs manually to change, use during the simple bladder irrigation in ward inconvenient, and complex structure, cost height.
Summary of the invention can't constant voltage flushing, narrow application range in order to overcome existing equipment, the device for storing liquid capacity is little and cause the deficiency of flushing liquor secondary pollution easily, this utility model provides a kind of medical flushing device, this equipment meets sterile working's principle, can not only automatic liquid supply, the constant voltage flushing, and in the art, the postoperative bladder irrigation all can use.
The technical scheme that its technical problem that solves this utility model adopts is: medical feed flow flushing device comprises liquid storing barrel, drain pipe, Electromagnetic air pump, air inlet pipe, it is characterized in that: be divided into two chambeies by the resilient bladder bag in the liquid storing barrel, two outlets are arranged on the liquid storing barrel outer rigid housing, the resilient bladder bag is connected with one of them outlet, a chamber dress liquid is arranged, another then is an air chamber, sealing outlet back forms two annular seal spaces, Electromagnetic air pump connects the liquid storing barrel air chamber through air inlet pipe, the liquid storing barrel liquid chambers links to each other with drain pipe, drain pipe catcher art equipment or catheter flushing.
According to the equation of state PV=MRT/U of ideal gas Boyle's law, we can derive P=(RT/U) M/V, show certain gas under the situation of temperature, constancy of volume, and when quality increased, pressure increased.Utilize Electromagnetic air pump to pump into gas, the pressure in the liquid storing barrel air chamber is increased, the pressure difference between air chamber and the atmosphere flows out the liquid in the liquid storing barrel liquid chambers.Owing to the isolation of capsular bag is arranged, can avoid of the pollution of airborne antibacterial to flushing liquor.
In order to reach the constant voltage flushing, two kinds of control system can be arranged.First kind is the potential energy difference of utilizing object, i.e. during Electromagnetic air pump work, the air pressure that constantly changes in the liquid containing bottle air chamber is converted into constant pressure.Electromagnetic air pump pumps into gas, makes liquid be transported to the buffer memory bottle of eminence, and potential energy official post liquid flows into bladder with certain pressure, washes.Electromagnetic air pump connects the liquid storing barrel air chamber through air inlet pipe, and the liquid storing barrel liquid chambers links to each other with drain pipe, and drain pipe connects the buffer memory bottle of eminence, and the buffer memory bottle is through drain pipe catcher art equipment or catheter flushing, and the buffer memory bottle hangs on the hook of height water level sensor.On the spring of height in the water level sensor inductive switch is arranged, two iron plates are arranged on the sidewall, the residing position of inductive switch on spring during corresponding respectively high and low water level.Inductive switch triggers Electromagnetic air pump by control circuit.When liquid feeding reached high water level, the weight of buffer memory bottle made the spring elongation, and inductive switch is triggered by iron plate, and Electromagnetic air pump is quit work; Along with liquid flows out, the weight of buffer memory bottle reduces, and when spring foreshortens to the low water level iron plate, triggers inductive switch, restarts Electromagnetic air pump, so repeatedly, guarantee flushing continue carry out.
Also can utilize the on and off switch of photoelectric sensor control Electromagnetic air pump, two photoelectric sensors are invested transparent buffer memory bottle sidewall, corresponding respectively selected high and low water level.
When second kind of control system was feed flow, the pressure in the liquid storing barrel air chamber remained unchanged.According to law of connected vessels, establish bladder and liquid storing barrel and be in same horizontal plane, under the situation of the elastical retraction power of not considering capsular bag, can obtain being added in the pressure that pressure on the capsular bag equals fluid mouth of pipe liquid.That is to say that as long as we keep, and the pressure in the air chamber is constant, just can guarantee to wash under constant pressure.According to the equation of state PV=MRT/U of ideal gas Boyle's law, we can derive P=(RT/U) M/V, show certain gas under temperature-resistant situation, when volume increases, keep pressure constant, need to increase in proportion the quality of gas.If the original volume of liquid storing barrel air chamber is V
1, liquid increases to V after discharging
2, at this moment only needing Electromagnetic air pump to pump into quality is M=PU (V
2-V
1The gas of)/RT can keep pressure P constant.The air pressure induction apparatus communicates with the liquid storing barrel air chamber, and the air pressure induction apparatus triggers Electromagnetic air pump by control circuit, drain pipe catcher art equipment or catheter flushing.Design although it is so can guarantee the constant-pressure liquid supply flushing, but need start Electromagnetic air pump repeatedly, can produce noise, influences patient's rest.
Therefore, we are connected pressure cabin between Electromagnetic air pump and liquid storing barrel air chamber, and the volume of establishing liquid storing barrel is V, and the pressure of flushing liquor is P, and liquid chambers equals V, be the liquid emptying, and the quality that need pump into gas is M
1=P
1VU/RT.As by disposable the providing of pressure cabin (establish volume also for V), the mass M of gas in the pressure cabin then
2=2M
1=P
2VU/RT, i.e. P
2=2P
1=2P.Once pumping into the pressure cabin quality is M
2Gas, utilize pressure difference between pressure cabin and the liquid storing barrel air chamber as power.After liquid flowed out, it is big that air chamber becomes, and pressure diminishes, and air intake valve is open, and the gas of pressure cabin enters, and pressure increases to P, and air intake valve is closed, and prevents that the pressure in the air chamber from continuing to increase.Because liquid is constantly to flow out, so the air intake valve continuous openness, gas constantly enters air chamber from pressure cabin, guarantees that the pressure of air chamber is P.The constant pressure that washes can be guaranteed like this, the noise jamming of Electromagnetic air pump can be avoided starting repeatedly again.The air pressure induction apparatus communicates with the liquid storing barrel air chamber, air pressure induction apparatus control air intake valve, drain pipe catcher art equipment or catheter flushing.According to the air pressure Displaying Meter of pressure cabin, the on and off switch of Artificial Control Electromagnetic air pump; Also can the air pressure induction apparatus be installed in pressure cabin, the air pressure induction apparatus triggers Electromagnetic air pump by control circuit.
Liquid emptying warning system is connected to form by induction apparatus, control circuit, buzzer.During to emptying, weight can change liquid storing barrel from full liquid, and the spring under its base also can correspondingly stretch.When emptying, on the base corresponding side walls inductive switch is installed.When the base rising, the iron plate of its below will trigger inductive switch, starts buzzer warning.Our also available varistor is as induction apparatus.
When pressure cabin was installed on the equipment, also available air pressure induction apparatus was as the emptying induction apparatus of reporting to the police.When once providing whole desired gas by pressure cabin, along with the outflow of liquid, the pressure in the pressure cabin reduces gradually.When the liquid emptying of liquid storing barrel, the pressure in the pressure cabin is to equal P.According to this feature, we monitor with baroreceptor, when the pressure in the pressure cabin during near P, start buzzer warning, show liquid storing barrel emptying soon, need to prepare the replacing liquid storing barrel.
The flow rate regulation of flushing liquor places on the drain pipe with existing transfusion control valve, meets existing use habit.During operation, standard-sized sheet is put; During bladder irrigation, draw the shade of courageous and upright liquid according to catheter and regulate flow velocity.
The beneficial effects of the utility model are that automatic liquid supply, constant voltage flushing, liquid emptying are reported to the police; In the art, the postoperative bladder irrigation all can use, and is and simple in structure, the device for storing liquid capacity is big.The liquid bag of liquid storing barrel is a disposable medical article, concentrates and irritate liquid, sterilization, encapsulates, is convenient to management, and air and liquid are isolated during the pressurization feed flow, avoid secondary pollution; Place in the liquid storing barrel damage in the time of can avoiding transporting.The liquid storing barrel of this equipment also can with the supporting use of roller press type feed pump of ureteroscope.
Description of drawings further specifies this utility model below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of liquid storing barrel.
Fig. 2 is the structural representation of band flexible pipe liquid storing barrel.
Fig. 3 is embodiment 1 of the present utility model, the medical flushing device of suspension type constant voltage, and liquid emptying induction apparatus is an inductive switch.
Fig. 4 is the structural representation of the suspension type height water level sensor of embodiment 1.
Fig. 5 is embodiment 2 of the present utility model, the medical flushing device of air-pressure type constant-pressure, and liquid emptying induction apparatus is an inductive switch.
Fig. 6 is embodiment 3 of the present utility model, the medical flushing device of air-pressure type constant-pressure, and liquid emptying induction apparatus is the air pressure induction apparatus.
1. liquid storing barrel shells, 2. resilient bladder bag, 3. Electromagnetic air pump among the figure, 4. air inlet pipe, 5. suspension type height water level sensor, 6. buffer memory bottle, 7. iron plate, 8. spring, 9. inductive switch, 10. instrument or display, 11. air intake valves, 12. air pressure induction apparatuss, 13. pressure cabin, 14. drain pipes, 15. bases, 16. the breather cheek valve door, 17. have the flexible pipe of side opening.
The specific embodiment has two outlets on the liquid storing barrel shell 1 in Fig. 1, resilient bladder bag 2 is connected with one of them outlet.After the sealing outlet, form two annular seal spaces in liquid storing barrel, a chamber dress liquid is arranged, another then is an air chamber, and air inlet pipe 4 links to each other with air chamber, and drain pipe 14 links to each other with liquid chambers.
In Fig. 2, in the resilient bladder bag of liquid storing barrel a flexible pipe is arranged, 3～5 side openings are arranged on the tube wall, flexible pipe is connected with drain pipe.When being used for the ureteroscope operation, the outlet of opening air cavity, drain pipe is connected with the roll-in pump, can wash.
In embodiment illustrated in fig. 31, Electromagnetic air pump 3 is through the air chamber of air inlet pipe 4 connection liquid storing barrels, and liquid chambers connects buffer memory bottles 6 through drain pipe 14, and the drain pipe of buffer memory bottle connects surgical apparatus or catheter.The buffer memory bottle hangs on the hook of suspension type height water level sensor 5, hook is connected with the spring 8 that has inductive switch 9, on the sidewall of suspension type height water level sensor inside two iron plates are arranged, the residing position of inductive switch on spring during corresponding respectively high and low water level.Inductive switch triggers Electromagnetic air pump by control circuit.Place the base 15 of liquid storing barrel and hang iron plate 7, reaching on the pairing position of warning liquid measure iron plate has inductive switch 9, and inductive switch triggers buzzer by control circuit, and base is fixed on the spring.During buffer memory bottle low water level, the inductive switch in the water level sensor is triggered by the iron plate of low water level, makes Electromagnetic air pump work, and the water in the buffer memory bottle increases gradually; When arriving high water level, the spring elongation causes inductive switch to be triggered by the iron plate of high water level correspondence, cuts off the power supply of Electromagnetic air pump.So repeatedly, the speed of buffer memory bottle and pump liquid, guarantees to wash incessantly from the effusive speed of buffer memory bottle greater than flushing liquor on the automatic pump liquid.Along with the weight of liquid containing bottle alleviates gradually, base also slowly raises, and when the residue liquid measure equaled to report to the police liquid measure, the iron plate of base triggered inductive switch, started buzzer warning.
In embodiment illustrated in fig. 52, Electromagnetic air pump 3 connects pressure cabin 13 through air inlet pipe 4, Non-return air valve 16, and pressure cabin is through the air chamber of air intake valve 11 connection liquid storing barrels, and liquid chambers connects surgical apparatus or catheters through drain pipe 14.Air pressure induction apparatus 12 communicates with the air chamber of liquid containing bottle, control air intake valve 11.Air pressure induction apparatus 12 in the pressure cabin 13 triggers Electromagnetic air pump by control circuit.Place the base 15 of liquid storing barrel and hang iron plate 7, reaching on the pairing position of warning liquid measure iron plate has inductive switch 9, and inductive switch triggers buzzer by control circuit, and base is fixed on the spring.Start Electromagnetic air pump, the pressure in liquid storing barrel air chamber, the pressure cabin increases gradually, and when the pressure of liquid storing barrel air chamber equaled P, the air pressure induction apparatus was closed air intake valve; When the pressure of pressure cabin equaled 2P, the air pressure induction apparatus cut off the power supply of Electromagnetic air pump by control circuit.Drain pipe is connected with the catheter of indwelling, regulates flow velocity and wash.Along with the outflow of liquid, the liquid chambers volume-diminished, and the air chamber volume increases, pressure reduces, the air pressure induction apparatus makes air intake valve open; Pressure difference between pressure cabin and the liquid storing barrel air chamber makes gas enter air chamber from pressure cabin, and when pressure increased to P, Air control valve was closed.So repeatedly, guarantee under constant pressure, to wash.
In embodiment illustrated in fig. 63, Electromagnetic air pump 3 connects pressure cabin 13 through air inlet pipe 4, Non-return air valve 16, and pressure cabin is through the air chamber of air intake valve 11 connection liquid storing barrels, and liquid chambers connects surgical apparatus or catheters through drain pipe 14.Air pressure induction apparatus 12 communicates with the air chamber of liquid containing bottle, control air intake valve 11.Air pressure induction apparatus 12 in the pressure cabin 13 triggers buzzer, Electromagnetic air pump by control circuit.Pressure difference during flushing between pressure cabin and the liquid storing barrel air chamber makes gas enter air chamber from pressure cabin.Along with the minimizing of gas, the pressure of pressure cabin constantly reduces, and when pressure during near P, the air pressure induction apparatus starts buzzer warning, shows that the liquid of liquid storing barrel will be used up, and please prepare to change.
Claims (10)
1, a kind of medical device for storing liquid is characterized in that: be divided into two chambeies by the resilient bladder bag in the liquid storing barrel, two outlets are arranged on the liquid storing barrel outer rigid housing, the resilient bladder bag is connected with one of them outlet, a chamber dress liquid is arranged, and another then is an air chamber, and sealing outlet back forms two annular seal spaces.
2, a kind of medical flushing device comprises liquid storing barrel, drain pipe, Electromagnetic air pump, air inlet pipe, it is characterized in that: Electromagnetic air pump links to each other with the liquid storing barrel air chamber through air inlet pipe, and drain pipe links to each other with the liquid storing barrel liquid chambers.
3, medical flushing device according to claim 2, it is characterized in that: increase the flushing pressure control system, form by buffer memory bottle, spring, inductive switch, iron plate, drain pipe connects the buffer memory bottle, buffer memory bottle graft catheter is hung inductive switch on the spring, two iron plates are arranged on the shell medial wall, the residing position of inductive switch on spring during respectively corresponding high and low water level, inductive switch triggers Electromagnetic air pump.
4, medical flushing device according to claim 2, it is characterized in that: increase the flushing pressure control system, form by air pressure induction apparatus, Non-return air valve, control circuit, Electromagnetic air pump connects the liquid storing barrel air chamber through air inlet pipe, Non-return air valve, the air pressure induction apparatus communicates with the liquid storing barrel air chamber, and the air pressure induction apparatus triggers Electromagnetic air pump.
5, medical flushing device according to claim 2, it is characterized in that: increase the flushing pressure control system, comprise electron pressure induction apparatus, Non-return air valve, control circuit, with the electron pressure induction apparatus, the electron pressure induction apparatus triggers Electromagnetic air pump on the drain pipe.
6, medical flushing device according to claim 2, it is characterized in that: between Electromagnetic air pump and the liquid storing barrel air chamber pressure cabin is arranged, pressure cabin connects the air pressure induction apparatus, the air chamber that connects liquid storing barrel through air intake valve, air inlet pipe, other has the air pressure induction apparatus to communicate with air chamber, pressure cabin links to each other with Electromagnetic air pump through Non-return air valve, and the air pressure induction apparatus of pressure cabin triggers Electromagnetic air pump, the air pressure induction apparatus that communicates with liquid storing barrel air chamber control air intake valve.
7, medical flushing device according to claim 2, it is characterized in that: between Electromagnetic air pump and the liquid storing barrel air chamber pressure cabin is arranged, pressure cabin connects the air pressure induction apparatus, the air chamber that connects liquid storing barrel through air intake valve, air inlet pipe, pressure cabin links to each other with Electromagnetic air pump through Non-return air valve, electron pressure induction apparatus on the drain pipe connects control circuit, the control air intake valve, and the air pressure induction apparatus of pressure cabin triggers Electromagnetic air pump.
8, according to claim 6 or 7 described medical flushing devices, it is characterized in that: the air pressure induction apparatus of pressure cabin triggers buzzer.
9, medical flushing device according to claim 2, it is characterized in that: the liquid emptying alarm that increases liquid storing barrel, be placed under the base of liquid storing barrel, form by spring, inductive switch, control circuit, iron plate, base, base is fixed on the spring, base is hung iron plate down, and reaching has inductive switch on the pairing position of warning liquid measure iron plate, and inductive switch triggers buzzer.
10, medical flushing device according to claim 9 is characterized in that: replace inductive switch with varistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02249349 CN2576242Y (en) | 2002-11-08 | 2002-11-08 | Medical flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02249349 CN2576242Y (en) | 2002-11-08 | 2002-11-08 | Medical flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2576242Y true CN2576242Y (en) | 2003-10-01 |
Family
ID=33719798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02249349 Expired - Fee Related CN2576242Y (en) | 2002-11-08 | 2002-11-08 | Medical flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2576242Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813559A (en) * | 2012-08-27 | 2012-12-12 | 山东大学 | Full-automatic hemoperfusion device |
| CN105675215A (en) * | 2016-01-04 | 2016-06-15 | 西安航天动力技术研究所 | Hydraulic air pressure test device |
| CN107308537A (en) * | 2017-06-30 | 2017-11-03 | 陈伟景 | A kind of atomizer for medicine |
| CN108421108A (en) * | 2018-03-21 | 2018-08-21 | 叶晓坚 | A kind of GI Medicine lavage apparatus |
| CN109568707A (en) * | 2019-01-26 | 2019-04-05 | 郑州工业应用技术学院 | A kind of improved Gynecological washing chlorination equipment |
| CN113907805A (en) * | 2021-09-30 | 2022-01-11 | 广安市人民医院 | Controllable formula cardiac operation art field blowing washing liquid device |
-
2002
- 2002-11-08 CN CN 02249349 patent/CN2576242Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813559A (en) * | 2012-08-27 | 2012-12-12 | 山东大学 | Full-automatic hemoperfusion device |
| CN105675215A (en) * | 2016-01-04 | 2016-06-15 | 西安航天动力技术研究所 | Hydraulic air pressure test device |
| CN107308537A (en) * | 2017-06-30 | 2017-11-03 | 陈伟景 | A kind of atomizer for medicine |
| CN107308537B (en) * | 2017-06-30 | 2020-12-15 | 中山市英博气雾阀有限公司 | Medical sprayer |
| CN108421108A (en) * | 2018-03-21 | 2018-08-21 | 叶晓坚 | A kind of GI Medicine lavage apparatus |
| CN109568707A (en) * | 2019-01-26 | 2019-04-05 | 郑州工业应用技术学院 | A kind of improved Gynecological washing chlorination equipment |
| CN113907805A (en) * | 2021-09-30 | 2022-01-11 | 广安市人民医院 | Controllable formula cardiac operation art field blowing washing liquid device |
| CN113907805B (en) * | 2021-09-30 | 2023-10-20 | 广安市人民医院 | Controllable operative field blowing and flushing device in heart operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |