CN109288548A - Recommend formula pneumoperitoneum instrument certainly with pneumoperitoneum flow control - Google Patents
Recommend formula pneumoperitoneum instrument certainly with pneumoperitoneum flow control Download PDFInfo
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- CN109288548A CN109288548A CN201810998273.8A CN201810998273A CN109288548A CN 109288548 A CN109288548 A CN 109288548A CN 201810998273 A CN201810998273 A CN 201810998273A CN 109288548 A CN109288548 A CN 109288548A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
Abstract
The present invention provides a kind of recommendation formula pneumoperitoneum instrument certainly with pneumoperitoneum flow control, the pneumoperitoneum instrument includes central control unit, proportional control valve, switch electromagnetic valve, mass-air-flow sensor and baroceptor, wherein: proportional control valve, switch electromagnetic valve, mass-air-flow sensor and baroceptor are arranged on supply air line, are connect with central control unit；Central control unit is for obtaining throughput parameter and pneumatic parameter, when pneumatic parameter is less than preset first pneumatic parameter, according to throughput parameter and preset Standard Gases flow parameter output pwm signal, pwm signal is adjusted the throughput parameter in supply air line with realizing for the switch time ratio of control valve to be adjusted；It is also used to close proportional control valve and switch electromagnetic valve when pneumatic parameter is greater than or equal to the first pneumatic parameter.The present invention can be improved visual effects.
Description
Technical field
The present invention relates to pneumoperitoneum instrument technical fields, and in particular to a kind of to recommend formula pneumoperitoneum certainly with pneumoperitoneum flow control
Instrument.
Background technique
In Minimally Invasive Surgery, the body cavity of patient with operation is expanded by injection CO2 gas, provides ideal for endoscopic surgery
Video condition and enough operative spaces.Traditional method of CO2 gas injection is to carry out adjusting gas flow using switch valve
And the air pressure of control cavity, main operational principle is: the air pressure in abdominal cavity is acquired, by the atmospheric pressure value of acquisition and pre-set value
It is compared, if it is greater than predetermined value, is shut off switch valve, if it is less than predetermined value, just open switch valve, to reach control
The purpose of flow and pressure.
In the state that abdominal pressure reaches balance, shake, therefore meeting can be all generated in the moment that switch valve is opened and is closed
Seriously affect the visual effects in operation.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of recommends formula pneumoperitoneum instrument with pneumoperitoneum flow control certainly,
It can be improved visual effects.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
Invention provides a kind of recommendation formula pneumoperitoneum instrument, including central control unit, ratio control certainly with pneumoperitoneum flow control
Valve, switch electromagnetic valve, mass-air-flow sensor and baroceptor processed, in which:
The proportional control valve, the switch electromagnetic valve, the mass-air-flow sensor and the baroceptor are respectively provided with
It is connect on supply air line, and with the central control unit；The mass-air-flow sensor is for detecting the supply air line
Throughput parameter；The baroceptor is used to detect the pneumatic parameter of the supply air line；Wherein, the supply air line is
Pipeline of the pneumoperitoneum instrument to patient's body lumen input gas；
The central control unit, for obtaining the throughput parameter and the pneumatic parameter, in the pneumatic parameter
When less than preset first pneumatic parameter, according to the throughput parameter and preset Standard Gases flow parameter output pwm signal,
The pwm signal is for being adjusted the switch time ratio of the control valve, to realize to the gas in the supply air line
Flow parameter is adjusted；It is also used to close the ratio when the pneumatic parameter is greater than or equal to first pneumatic parameter
Example control valve and the switch electromagnetic valve.
(3) beneficial effect
The embodiment of the invention provides a kind of to recommend formula pneumoperitoneum instrument with pneumoperitoneum flow control certainly, is provided with ratio and controls
Valve, and central control unit realizes that the switch proportional time of comparative example control valve is adjusted using PWM algorithm, thus realization pair
The fine tuning of throughput parameter in supply air line, and then realize the fine tuning to air pressure, i.e., it is adjusted in supply air line by no ladder
Gas flow, and then realize and precisely and smoothly adjust to pneumoperitoneum pressure solve gas brought by the moment of switch valve opening and closing
It presses instantaneous variation, video to shake temperature, improves visual effects.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 shows the structural schematic diagram of pneumoperitoneum instrument in one embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In a first aspect, the present invention provides a kind of recommendation formula pneumoperitoneum instrument certainly with pneumoperitoneum flow control, as shown in Figure 1, should
Pneumoperitoneum instrument includes central control unit, proportional control valve, switch electromagnetic valve, mass-air-flow sensor and baroceptor, in which:
The proportional control valve, the switch electromagnetic valve, the mass-air-flow sensor and the baroceptor are respectively provided with
It is connect on supply air line, and with the central control unit；The mass-air-flow sensor is for detecting the supply air line
Throughput parameter；The baroceptor is used to detect the pneumatic parameter of the supply air line；Wherein, the supply air line is
Pipeline of the pneumoperitoneum instrument to patient's body lumen input gas；
The central control unit, for obtaining the throughput parameter and the pneumatic parameter, in the pneumatic parameter
When less than preset first pneumatic parameter, according to the throughput parameter and preset Standard Gases flow parameter output pwm signal,
The pwm signal is for being adjusted the switch time ratio of the control valve, to realize to the gas in the supply air line
Flow parameter is adjusted；It is also used to close the ratio when the pneumatic parameter is greater than or equal to first pneumatic parameter
Example control valve and the switch electromagnetic valve.
It will be appreciated that supply air line is referred to as output pipe, i.e., out of pneumoperitoneum instrument output gas to patient's body lumen
Gas piping.
It will be appreciated that gas here can be carbon dioxide gas.
It will be appreciated that pneumatic parameter is pressure, throughput parameter is gas velocity.
It will be appreciated that proportional control valve, switch electromagnetic valve and the gas bleeder valve being subsequently noted are arranged at supply air line
On, it is connect with central control unit, and can be connect by metal-oxide-semiconductor with central control unit.
It will be appreciated that central control unit is controlled using PWM algorithm comparative example control valve, specifically: in
The standard throughput ginseng of throughput parameter (for example, air velocity) and setting that centre control unit detects mass-air-flow sensor
Number is compared, if throughput parameter is less than the Standard Gases flow parameter, increases the duty ratio of the pwm signal of output, thus
The pulse width for increasing output end air-flow, to increase output gas flow；And if throughput parameter be greater than the Standard Gases flow parameter,
Then reduce the duty ratio of the pwm signal of output, to reduce the pulse width of output end air-flow, to reduce output gas flow.It can
See, is finely adjusted by the air-flow that supply air line output end may be implemented in the PWM algorithm that central control unit uses, to keep
Near preset Standard Gases flow parameter.
Here, corresponding pwm signal is exported to metal-oxide-semiconductor according to comparison result, opening for proportional control valve is controlled by metal-oxide-semiconductor
Logical and closing, and then the switch time ratio of proportional control valve is controlled, so that the gas in supply air line passes through ratio control
A series of equal high-frequency impulse air-flow of amplitudes is obtained after valve processed, i.e. realization " exhale-stop " formula gas supply.Within the regular hour, this
The tolerance of a little high-frequency impulse air-flows is equivalent to the tolerance of conventional switch mode one switch bout, so can be realized gas in this way
The accurate control and gas transmission of flow are steady.Here, the switch time ratio of comparative example control valve is adjusted, and may be implemented to arteries and veins
The width of qi of chong channel ascending adversely stream is adjusted, and then changes the air-flow size of supply air line output end.
It will be appreciated that the air-flow size of supply air line output end is adjusted by using PWM algorithm realization, in turn
The pressure of the output gas of supply air line is adjusted in realization, since PWM algorithm is accomplished that the fine tuning to throughput,
Adjusting to output gas pressure is also fine tuning.In practical applications, detect in baroceptor pneumatic parameter (for example,
Pressure) less than in the case where preset first pneumatic parameter, it can realize the tune of gas pressure indirectly using above-mentioned PWM algorithm
Section.It is possible that the pneumatic parameter (for example, pressure) that baroceptor detects occur exceeds or reaches preset first gas
The case where pressing parameter, such situation are possible as the failure of pneumoperitoneum instrument a part and lead to not through above-mentioned PWM algorithm
The air pressure of output gas is adjusted in the mode being finely adjusted, and can close proportional control valve and switch electromagnetic valve at this time, i.e.,
Stop the output of supply air line, until the pneumatic parameter that baroceptor detects is again less than the first pneumatic parameter.
But when appearance can not reduce supply air line air pressure by way of closing proportional control valve and switch electromagnetic valve
The case where when, in order to avoid leading to the generation of dangerous situation because crossing hyperbar, gas bleeder valve can also be set in pneumoperitoneum instrument, let out
Air valve can be set on supply air line, and connect with central control unit, when central control unit determines that baroceptor is examined
When the pneumatic parameter measured is greater than or equal to the second pneumatic parameter, then gas bleeder valve is opened, starts to lose heart, until in supply air line
Air pressure is under the first pneumatic parameter.
It will be appreciated that the second pneumatic parameter is greater than the first pneumatic parameter.When the pneumatic parameter that baroceptor detects
When more than or equal to the first pneumatic parameter, proportional control valve and switching control pilot are closed.When the air pressure that baroceptor detects
When parameter is greater than or equal to the second pneumatic parameter, then on the basis of closing proportional control valve and switching control pilot, opens and lose heart
Valve.
Certainly, proportional control valve and switch electromagnetic valve can be simultaneously closed off when being not required to gas supply, prevents proportional control valve
Inside appearance machinery is stuck, is not closed completely and leaks, and realizes the double protection to supply air line.
In practical applications, the baroceptor of the input gas atmosphere for detecting carbon dioxide tank can also be set,
To monitor the gas flow in carbon dioxide tank, alarm is issued when it is lower than particular value, reminds medical staff.
In some embodiments, as described in Figure 1, pneumoperitoneum instrument provided by the invention can also include storage unit and man-machine friendship
Mutually screen, in which:
The storage unit connects the central control unit, for storing the corresponding data set of multiple age brackets；
The human-computer interaction screen, connects the central control unit, shows multiple age bracket options thereon, and for examining
When measuring any option in the multiple age bracket option and being selected, trigger signal is sent to the central control unit；
The central control unit is also used to when receiving the trigger signal, according to the option selected corresponding year
Data set corresponding to age section, determines the air pressure recommendation and throughput recommendation for being directed to the age bracket, and the air pressure is pushed away
It recommends value and the throughput recommendation is shown on the human-computer interaction screen.
In practical applications, all age group may include: newborn, children, adult, the elderly etc..
It in practical applications, may include a plurality of record content in the data set of each age bracket, every record content can be with
Including air pressure, throughput, the access times under the gentle flow set of the air pressure, abdominal cavity Pressure Inflation to specified air pressure threshold value model
Average time used and this record within the scope of gas mean temperature, abdominal cavity Pressure Inflation to specified air pressure threshold value when enclosing interior
The timestamp of content.For example, { p:8, s:20, ts:20, c:20, t:480, st:1528969758 }.Wherein, p is pressure, and s is
Throughput, ts are access times, and c is gas mean temperature, and t is the average time used, and st is timestamp.
It will be appreciated that medical staff can select any of multiple age bracket options to select on human-computer interaction screen
, central control unit is extracted from storage unit by the corresponding data set of selection option, and then calculates throughput recommendation
With air pressure recommendation, and two recommendations are shown on human-computer interaction screen, for medical staff's reference, for example, according to air pressure
Above-mentioned first pneumatic parameter and/or the second pneumatic parameter is arranged in recommendation, and above-mentioned standard air-flow is arranged according to throughput recommendation
Measure parameter.
Here, for each age bracket, corresponding throughput recommendation and air pressure recommendation can be all calculated, thus
When calculating recommendation, it is contemplated that this feature of the difference of different age group, so that recommendation more has reference value.
Gas temperature on average in above-mentioned data set is depending on the temperature that repeated detection arrives, it is therefore desirable to setting temperature
Sensor is spent, temperature sensor can be set on the supply air line, connect with the central control unit, for detecting
State the gas temperature in supply air line.
Wherein, central control unit can determine that the air pressure recommendation and the throughput are recommended using following steps
Value:
A1, the suitable score value that every record content is calculated using the first formula, first formula include:
In formula, g is to be suitble to score value, a1、a2And a3For weighted value, tsmaxFor access times in a plurality of record content
Maximum value, tmaxFor time used average in a plurality of record content maximum value, c is to record abdominal cavity in content in this
Gas mean temperature when within the scope of Pressure Inflation to specified air pressure threshold value, t are to record abdominal cavity Pressure Inflation in content in this
The average time used within the scope of to specified air pressure threshold value, ts is to record the access times in content in this.
Wherein, the central control unit can specifically calculate the weighted value in first formula according to third formula
a1, the third formula includes:
a1(t)=a0e-25(t-1)
In formula, t is all numbers in the case where being chronomere with week where the timestamp of current record content, timestamp
Closer, all numbers at place are smaller.
For example, if the timestamp of current record content within nearest one week, t 1；If the time of current record content
Stamp is within nearest two weeks, then t is 2.
Wherein, three weighted value a1、a2And a3And be 1, i.e. a1+a2+a3=1.
A2, using the air pressure in record content corresponding to the maximum value in obtained multiple suitable score values as the gas
Press recommendation and using the throughput in the corresponding record content of the maximum value as throughput recommendation.
It will be appreciated that the more proof air pressures of access times and the combination of throughput are better in record content, it is average
Temperature is better closer to body temperature, and the shorter inflate the time used the better, integrates, g value is higher, it was demonstrated that corresponding air pressure and
The combination of throughput is more suitable for patient, thus here using maximum g value it is corresponding record content in air pressure as
Air pressure recommendation, using the throughput in the corresponding record content of maximum g value as throughput recommendation.
In some embodiments, central control unit can also carry out the record content in the data set in storage unit
It updates or deletes, to guarantee the data validity of data set.
Wherein, the process that central control unit is updated the data set in storage unit includes:
The pneumoperitoneum instrument in use, first time abdominal cavity air pressure and default pressure difference in specified threshold
When maintaining preset duration, to current gas pressure, current throughput, current gas temperatures, this abdominal cavity Pressure Inflation to specified air pressure
Time used and timestamp in threshold range are recorded；If in current record content including the current gas pressure and described
The record of current throughput, then add 1 to corresponding access times, and be updated to timestamp, is calculated more using the second formula
Average time used and gas mean temperature, second formula after new includes:
In formula, n is updated average time used or updated gas mean temperature, and o is being averaged before updating
Gas mean temperature before time used or update, ts are access times before this update, and r is this abdominal cavity Pressure Inflation
Time used or the current gas temperatures within the scope of to specified air pressure threshold value.
For example, the gas mean temperature at first 10 times is 37.2 DEG C, this gas temperature is 37.1 DEG C, then new gas
Mean temperature is n=(37.2*9+37.1)/10.
Certainly, if not having current record content in storage unit, current record content is added in data set,
And access times are 1.
Here, the update to access times is realized to the mode of access times plus 1, when replacing old using new timestamp
Between the mode stabbed realize the update to timestamp, it is real by way of the old average time used is replaced the new average time used
Now to the update of time averagely used, old gas mean temperature is replaced by new gas mean temperature, realization pair
The update of gas mean temperature.
Wherein, the process that central control unit deletes the record content in data set in storage unit can wrap
It includes: if the item number of the corresponding data centralized recording content of each age bracket of storage unit storage is greater than preset maximum item
Number, then by the least note of access times in the record content of the smallest default number of branches of timestamp in the corresponding data set of the age bracket
Content is recorded to delete.
That is, after the item number of the record content in the corresponding data set of some age bracket is greater than certain item number,
Just the smallest record content of access times in the smallest a certain number of record contents of timestamp is deleted, it in this way can be by the time
The smallest record content of earliest and access times is deleted.
In the conventional technology, in pneumoperitoneum instrument use process, medical staff needs to combine experience to pressure and throughput
It is configured, is difficult in view of temperature and inflationtime the two factors, and here according to patient's gas replenishment process in historical data
In gas temperature, inflationtime, pressure, throughput and access times group be combined into medical staff to provide suitable pressure gentle
The combination of flow.
Pneumoperitoneum instrument provided by the invention is provided with proportional control valve, and is realized by central control unit using PWM algorithm
The switch proportional time of comparative example control valve is adjusted, to realize the fine tuning to throughput parameter in supply air line, in turn
It realizes the fine tuning to air pressure, i.e., the gas flow in supply air line is adjusted by no ladder, and then realize accurate to pneumoperitoneum pressure
And smoothly adjust, it solves air pressure instantaneous variation brought by the moment of switch valve opening and closing, video shake temperature, improves picture
Quality.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of recommend formula pneumoperitoneum instrument with pneumoperitoneum flow control certainly, which is characterized in that including central control unit, ratio control
Valve, switch electromagnetic valve, mass-air-flow sensor and baroceptor processed, in which:
The proportional control valve, the switch electromagnetic valve, the mass-air-flow sensor and the baroceptor are arranged at confession
On air pipe, and it is connect with the central control unit；The mass-air-flow sensor is used to detect the gas of the supply air line
Flow parameter；The baroceptor is used to detect the pneumatic parameter of the supply air line；Wherein, the supply air line is described
Pipeline of the pneumoperitoneum instrument to patient's body lumen input gas；
The central control unit is less than for obtaining the throughput parameter and the pneumatic parameter in the pneumatic parameter
It is described according to the throughput parameter and preset Standard Gases flow parameter output pwm signal when preset first pneumatic parameter
Pwm signal is for being adjusted the switch time ratio of the control valve, to realize to the throughput in the supply air line
Parameter is adjusted；It is also used to close the ratio control when the pneumatic parameter is greater than or equal to first pneumatic parameter
Valve processed and the switch electromagnetic valve.
2. pneumoperitoneum instrument according to claim 1, which is characterized in that
The pneumoperitoneum instrument further include:
Gas bleeder valve, setting are connect on the supply air line, and with the central control unit；
Corresponding, the central control unit is also used to open when the pneumatic parameter is greater than or equal to the second pneumatic parameter
Gas bleeder valve；Wherein, second pneumatic parameter is greater than first pneumatic parameter.
3. pneumoperitoneum instrument according to claim 1, which is characterized in that the pneumoperitoneum instrument further includes storage unit and human-computer interaction
Screen, in which:
The storage unit connects the central control unit, for storing the corresponding data set of multiple age brackets；
The human-computer interaction screen, connects the central control unit, shows multiple age bracket options thereon, and for detecting
When any option in the multiple age bracket option is selected, trigger signal is sent to the central control unit；
The central control unit is also used to when receiving the trigger signal, according to the corresponding age bracket of the option selected
Corresponding data set determines the air pressure recommendation and throughput recommendation for being directed to the age bracket, and by the air pressure recommendation
It is shown on the human-computer interaction screen with the throughput recommendation.
4. pneumoperitoneum instrument according to claim 3, which is characterized in that
The pneumoperitoneum instrument further include:
Temperature sensor is arranged on the supply air line, connect with the central control unit, for detecting the air supply pipe
Gas temperature in road；
The corresponding data set of all age group stored in the storage unit includes a plurality of record content, in every record
Hold includes air pressure, throughput, the access times under the gentle flow set of the air pressure, abdominal cavity Pressure Inflation to specified air pressure threshold value
Average time used and this note within the scope of gas mean temperature, abdominal cavity Pressure Inflation to specified air pressure threshold value when in range
Record the timestamp of content；
Corresponding, the central control unit is used to determine that the air pressure recommendation and the throughput are recommended using following steps
Value:
The suitable score value of every record content is calculated using the first formula, first formula includes:
In formula, g is to be suitble to score value, a1、a2And a3For weighted value, tsmaxIt is maximum for access times in a plurality of record content
Value, tmaxFor time used average in a plurality of record content maximum value, c is to record abdominal cavity air pressure in content in this
Gas mean temperature when being inflated within the scope of specified air pressure threshold value, t are to record abdominal cavity Pressure Inflation in content in this extremely to refer to
Determine the average time used within the scope of air pressure threshold value, ts is to record the access times in content in this；
Air pressure in record content corresponding to maximum value in obtained multiple suitable score values is recommended as the air pressure
It is worth and using the throughput in the corresponding record content of the maximum value as throughput recommendation.
5. pneumoperitoneum instrument according to claim 4, which is characterized in that the central control unit is also used to single to the storage
Data set in member is updated, and is specifically included:
The pneumoperitoneum instrument in use, maintained in specified threshold in first time abdominal cavity air pressure and the difference of default pressure
When preset duration, to current gas pressure, current throughput, current gas temperatures, this abdominal cavity Pressure Inflation to specified air pressure threshold value
Time used and timestamp in range are recorded；
If in current record content including the record of the current gas pressure and the current throughput, to corresponding using secondary
Number plus 1, and timestamp is updated, updated average time used and gas mean temperature are calculated using the second formula,
Second formula includes:
In formula, n is updated average time used or updated gas mean temperature, and o is average used before updating
Gas mean temperature before time or update, ts are access times before this update, and r is that this abdominal cavity Pressure Inflation extremely refers to
Determine the time used or the current gas temperatures within the scope of air pressure threshold value.
6. pneumoperitoneum instrument according to claim 5, which is characterized in that the central control unit is also used to single to the storage
Record content in data set in member is deleted, and is specifically included:
If the item number of the corresponding data centralized recording content of each age bracket of the storage unit storage is greater than preset maximum
Item number, then by access times are least in the record content of the smallest default number of branches of timestamp in the corresponding data set of the age bracket
Content is recorded to delete.
7. pneumoperitoneum instrument according to claim 4, which is characterized in that the central control unit is specifically used for according to third public affairs
Formula calculates the weighted value a in first formula1, the third formula includes:
a1(t)=a0e-25(t-1)
In formula, t is all numbers in the case where being chronomere with week where the timestamp of current record content, and timestamp is got over
Closely, all numbers at place are smaller.
8. pneumoperitoneum instrument according to claim 3, which is characterized in that the human-computer interaction screen is also used to show air pressure and air-flow
The set interface of amount, for medical staff's manual setting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998273.8A CN109288548A (en) | 2018-08-29 | 2018-08-29 | Recommend formula pneumoperitoneum instrument certainly with pneumoperitoneum flow control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998273.8A CN109288548A (en) | 2018-08-29 | 2018-08-29 | Recommend formula pneumoperitoneum instrument certainly with pneumoperitoneum flow control |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810998273.8A Pending CN109288548A (en) | 2018-08-29 | 2018-08-29 | Recommend formula pneumoperitoneum instrument certainly with pneumoperitoneum flow control |
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| CN110664479A (en) * | 2019-09-30 | 2020-01-10 | 严立 | Gas flow rate adjusting device for controlling gas supply device and jet stripping system |
| CN113171142A (en) * | 2021-04-13 | 2021-07-27 | 西安申兆光电科技有限公司 | Pneumoperitoneum machine and control method |
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| CN105431093A (en) * | 2013-08-06 | 2016-03-23 | 奥林巴斯株式会社 | Pneumoperitoneum apparatus |
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| CN105813537A (en) * | 2013-12-26 | 2016-07-27 | 奥林巴斯株式会社 | Insufflator |
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| CN105431093A (en) * | 2013-08-06 | 2016-03-23 | 奥林巴斯株式会社 | Pneumoperitoneum apparatus |
| CN105813537A (en) * | 2013-12-26 | 2016-07-27 | 奥林巴斯株式会社 | Insufflator |
| JP2016052478A (en) * | 2014-09-04 | 2016-04-14 | オリンパス株式会社 | Pneumoperitoneum device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110664479A (en) * | 2019-09-30 | 2020-01-10 | 严立 | Gas flow rate adjusting device for controlling gas supply device and jet stripping system |
| CN113171142A (en) * | 2021-04-13 | 2021-07-27 | 西安申兆光电科技有限公司 | Pneumoperitoneum machine and control method |
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Application publication date: 20190201 |