CN203234824U - Gas supply device for digestive endoscope - Google Patents
Gas supply device for digestive endoscope Download PDFInfo
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- CN203234824U CN203234824U CN 201220389903 CN201220389903U CN203234824U CN 203234824 U CN203234824 U CN 203234824U CN 201220389903 CN201220389903 CN 201220389903 CN 201220389903 U CN201220389903 U CN 201220389903U CN 203234824 U CN203234824 U CN 203234824U
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- feeder
- flow value
- digestive endoscopy
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Abstract
A gas supply device for a digestive endoscope comprises a gas storage tank, a gas source input connector, a gas pressure monitor, a pressure reduction module, an output flow monitor, a gas source output connector and a gas injection bottle. The gas storage tank is used for storing gas, the gas source input connector is connected with the gas storage tank, the gas pressure monitor is used for monitoring the gas pressure of the gas source input connector, the pressure reduction module is used for regulating the pressure of the gas output by the gas storage tank to a pressure range which can be borne by the endoscope, the output flow monitor is connected with the pressure reduction module and used for monitoring the real-time flow of the gas, the gas source output connector is connected with the output flow monitor, and the gas injection bottle is connected with a water injection bottle connector of the digestive endoscope. A gas inlet connector is arranged on the gas injection bottle and connected with the gas source output connector in a sealing mode. The gas supply device for the digestive endoscope has the advantage that a gas source can be directly replaced on the premise that the original structure of the endoscope is not changed.
Description
Technical field
This utility model relates to a kind of feeder for digestive endoscopy.
Background technology
In the digestive endoscopy field, normally take air as medium, by to patient's nature tract gas injection water filling, can provide suitable surgical field of view and space for digestive endoscopy, the assisting operation treatment.Along with the development of digestive endoscopy technology, in the digestive endoscopy treatment, adopt more and more the high-frequency electrical treatment, there is the risk that patient tissue is burnt when using air dielectric.
Use the advantage of carbon dioxide that 2 points are arranged:
The one, carbon dioxide is as a kind of noble gas, when using high frequency electric knife to cut to operate with blood coagulation very high safety arranged, and can avoid burning of tissue.Therefore adopt the carbon dioxide gas body medium to become and carry out human body natural's tract and in natural tract, have the relevant high-frequency electrical of tract (such as positions such as bile duct, pancreas) of opening to treat the necessary safety conditions of performing the operation.
The 2nd, carbon dioxide is easy to be absorbed by human cell tissue.
The carbon dioxide gas body medium is also more abundant on the impact research of human body.There are some researches show that carbon dioxide can absorb a large amount of heat when becoming as gaseous state from liquid state, a large amount of gases enter that the people knows from experience so that 1 ~ 3 ℃ of patient's temperature decline, thereby cause that the patient does not seriously accommodate complication, and operation risk improves.When taking the carbon dioxide constant temperature measures, when making gas near the blood heat, can greatly reduce the complication such as pain behind the corrective surgery and vomiting.
The therapeutic laparoscopy operation of domestic main flow hospital has been experienced from using air dielectric to the technical development process of using CO 2 medium, has accumulated a large amount of successful surgery examples.But the carbon dioxide for laparoscopy pneumoperitoneum apparatus of present clinical use has essential difference from aspects such as flow, pressure, feedback control principles, can not be used in digestive endoscopy.
And because the complex structure of digestive endoscopy can't directly be changed original source of the gas and feeder, therefore how the air source of the gas being replaced with carbon dioxide air source is the technical issues that need to address.
The utility model content
For solve in the prior art can't be under the prerequisite that does not change the scope original structure the direct shortcoming of exchange gas source, this utility model provides a kind of feeder that can be directly used in digestive endoscopy.
The feeder that is used for digestive endoscopy, the air accumulator that comprises stored-gas, with the tank connected source of the gas input interface of gas storage, the gas pressure monitoring device of the gas pressure of monitoring source of the gas input interface, the pressure that air accumulator is exported gas is adjusted to the pressure-reduction module of the pressure limit that scope can bear, be connected the also output flow monitor of gas-monitoring real-time traffic with pressure-reduction module, with the source of the gas output interface that is connected with the output flow monitor, and the gas injection bottle that is connected with the water injection bottle interface of digestive endoscopy; The gas injection bottle is provided with intake interface, and intake interface and source of the gas output interface are tightly connected.
Further, storing carbon dioxide in the air accumulator, feeder also comprises the pneumatic filter that is arranged between source of the gas input interface and the gas pressure monitor impurity that is used for the filtering carbon dioxide, be arranged between gas pressure monitoring device and the pressure-reduction module carbon dioxide is carried out thermostatically controlled conditioning oven, and be arranged at electromagnetic valve between gas pressure monitoring device and the Output estimation device.
Further, flow described feeder and also have flow controller, prestore lower limit flow value and upper flow value in the flow controller;
In the actual flow value input flow rate controller that the Output estimation device obtains, flow controller compares respectively actual flow value and upper flow value, actual flow value and lower limit flow value, when the actual flow value greater than upper flow value or actual flow value during less than the lower limit flow value, the Output estimation device sends reports to the police and cuts off electromagnetic valve.
Further, pressure-reduction module comprises the second air relief valve that the first air relief valve that input is connected with conditioning oven and outfan are connected with electromagnetic valve, the outfan of the first air relief valve is connected with the input of the second air relief valve, and the first air relief valve and the second air relief valve are all with corresponding safety relief valve.
Further, feeder also comprises the gauge tap that the control electromagnetic valve opens or cuts out, and gauge tap is panel inching button or foot switch or wire controlling button.
Further, electromagnetic valve is connected with intervalometer, and intervalometer turn-offs electromagnetic valve according to timing length; The timing length of intervalometer has a plurality of.
Further, feeder also comprises display module, and display module is connected with the gas pressure monitoring device, and display module shows gas pressure value in real time.Display module is liquid crystal display screen or LCD display.
Technical conceive of the present utility model is: carbon dioxide air source gas after filtration, thermoregulation, secondary or the above gas decompression of secondary, meet temperature and the air pressure that treatment requires to reach, the operator realizes or regularly air feed control direct to the carbon dioxide of digestion therapeutic endoscopy by the control electromagnetic valve.
The effect of pneumatic filter is foreign body and the impurity of eliminating in the carbon dioxide, and (for example adopting 0.5um filter element or other standard filtering core) prevents from the follow-up air relief valve fault that causes because of foreign body impurity from improving security of supply gas.
Gas pressure monitoring device monitoring input bleed pressure state, the pressure signal that the gas pressure monitoring device obtains is inputted display device by pressure transmitter, and display device shows gas pressure value in real time.Give alarm and initiatively cut off electromagnetic valve and block carbon dioxide and export at the source of the gas below the 343.2KPa and more than the 1.400MPa for pressure; Atmospheric pressure state in normal air feed scope 343.2KPa～1.400MPa is dynamically shown by display unit.
Conditioning oven is used for the carbon dioxide of input is carried out preheating, guarantees that the output gas temperature prevents that supercool gas from directly entering human body natural's tract under the surgical condition in 15 ℃～35 ℃.Conditioning oven adopts low-voltage direct control, is provided with specified operating point and is 36～40 ℃ highly sensitive bimetal plate heat protector, when because fault when causing gas temperature unusual, can be cut off heating automatically.Using the purpose of conditioning oven is to keep carbon dioxide constant temperature, can reduce the complication such as pain behind the corrective surgery and vomiting.
The carbon dioxide that the first decompressor will enter main frame is reduced to suitable for low pressure; (its amount of exports definite value can be arbitrary value in 100 KPa～500KPa scope); its output is provided with the safety relief protector, abnormal air-pressure is discharged, with the safety of protection rear class device pipeline.The safety relief value of backing stage pressure reducers allows in the air pressure range in the maximum of rear class decompressor.
The second decompressor is as second level gas pressure reducer, equally also with the safety relief protector.Its input air pressure is in 100KPa～500KPa, is output as 0～45KPa, safety relief value 45 KPa.By two-stage (or more than) measures to reduce stresses, and all with pressure relief device, its single failure risk reduces greatly, and gas path component all adopts and prohibits oil and prohibit the water conservancy project skill simultaneously, can be safely to digestion endoscopic surgery system supply carbon dioxide.
The effect of electromagnetic valve is controlled output of opening or turn-offing carbon dioxide.Feeder provides multiple control modes, as: panel inching button, foot switch, wire controlling button etc., to make things convenient for practical operation.
Simultaneously, the output of carbon dioxide there is regularly turn-off function.The timing mode of operator selectable majority kind duration carries out the service time restriction to output gas, and the time is to automatically shutting down electromagnetic valve, to prevent from forgeing and saving source of the gas.
The output flow monitor is set not only can the Real Time Monitoring gas flow, avoids gas temperature too high or too low.The more important thing is, when electromagnetic valve for adjusting aperture not, if gas flow reduces, illustrate that then the digestive tract of human body has pathological changes, such as perforation, gas can't automatically be got rid of and gather in human abdominal cavity by human body alimentary canal, causes the intrinsic pressure rising of human body, gas flow to reduce.Therefore, when gas flow was lower than lower limit flow, necessary shut electromagnetic valve prevented that gas from continuing to accumulate in the human body, plays a protective role.
Feeder can adopt the high-brightness wide visual angle display screens such as OLED, LED, LCD, display floater can vertically or tilt, and displaying contents comprises Displaying timer pattern, regularly elapsed time, bleed pressure prompting, gas temperature, output state prompting, fault prompting etc.
The control assembly of feeder is used for Gather and input gas pressure signal, temperature signal, gas output pressure or flow signal, and signal monitored, temperature is regulated and control, electromagnetic valve is controlled, abnormal air-pressure, temperature are reported to the police also can initiatively cut off electromagnetic valve.
The utlity model has the advantage of direct exchange gas source under the prerequisite that does not change the scope original structure.
Description of drawings
Fig. 1 is frame diagram of the present utility model.
Fig. 2 is front schematic view of the present utility model.
Fig. 3 is schematic rear view of the present utility model.
Fig. 4 is parts connection diagram of the present utility model.
The specific embodiment
With reference to accompanying drawing, further specify this utility model:
The feeder that is used for digestive endoscopy, the air accumulator that comprises stored-gas, with the tank connected source of the gas input interface of gas storage 6a, the gas pressure monitoring device 7b of the gas pressure of monitoring source of the gas input interface, the pressure that air accumulator is exported gas is adjusted to the pressure-reduction module of the pressure limit that scope can bear, be connected the also output flow monitor 7g of gas-monitoring real-time traffic with pressure-reduction module, with the source of the gas output interface 6b that is connected with output flow monitor 7g, the gas injection bottle and the power supply that are connected with the water injection bottle interface of digestive endoscopy; The gas injection bottle is provided with intake interface, and intake interface and source of the gas output interface 6b are tightly connected.
Storing carbon dioxide in the air accumulator, usually carbon dioxide be with storage in liquid in steel cylinder, certainly, also can use the carbon dioxide air source of central gas supply.Feeder also comprises the pneumatic filter 7a that is arranged between source of the gas input interface 6a and the gas pressure monitor 7b impurity that is used for the filtering carbon dioxide, be arranged between gas pressure monitoring device 7b and the pressure-reduction module carbon dioxide is carried out thermostatically controlled conditioning oven 7c, and be arranged at the electromagnetic valve 7f between gas pressure monitoring device 7b and the output flow monitor.Certainly, also can store other in the air accumulator and be applicable to the gas that scope uses, such as noble gas.
The aperture of electromagnetic valve 7f is controlled by flow controller, and in the flow signal input flow rate controller that the output flow monitor measures, flow controller carries out feedback control according to this flow signal to electromagnetic valve 7f.The pneumatic filter 7a of feeder, conditioning oven 7c, pressure-reduction module, electromagnetic valve 7f and output flow monitor 7g all are packaged in the casing 6, source of the gas input interface 6a, source of the gas output interface 6b all expose to casing 6, source of the gas input interface 6a connects air accumulator by air inlet pipeline 1, and source of the gas output interface 6b connects water injection bottle by outlet pipe 3.Also be provided with the DLL 6e of the chip program of electromagnetic valve switch interface 6c and editor's flow controller on the casing 6, and the power interface 6d that connects power supply 10 by power line 5.Casing 6 is made for metal material, and 6 pairs of installations of casing all parts within it plays safety protection function, and forms complete metal-conduction connection, to satisfy EMC Requirements.Shell 6 is ground connection reliably.
Described feeder also has flow controller, prestores lower limit flow value and upper flow value in the flow controller;
In the actual flow value input flow rate controller that Output estimation device 7g obtains, flow controller compares respectively actual flow value and upper flow value, actual flow value and lower limit flow value, when the actual flow value greater than upper flow value or actual flow value during less than the lower limit flow value, Output estimation device 7g sends and reports to the police and cut off electromagnetic valve 7f.When the actual flow value is higher than the upper flow value, may cause the caloric receptivity of gas excessive, cause the interior drop in temperature of human body excessive, affect endoscopic surgery and human body viscera.When actual flow is lower than lower limit flow; then be likely because in the body cavity pathological changes is arranged; cause inputting the gas of human body in the body cavity inner accumulated; cause the intrinsic pressure increase of human body and then cause inputting throughput and reduce; must cut off electromagnetic valve and stop air feed this moment; avoid human body is caused damage, play protection patient's effect.
Pressure-reduction module comprises the second air relief valve 7e that the first air relief valve 7d that input is connected with conditioning oven 7c and outfan are connected with electromagnetic valve 7f, the outfan of the first air relief valve 7d is connected with the input of the second air relief valve 7e, and the first air relief valve 7d and the second air relief valve 7e are all with corresponding safety relief valve.
Feeder also comprises the gauge tap 4 that control electromagnetic valve 7f opens or closes, and gauge tap 4 is panel inching button or foot switch or wire controlling button.
Feeder also comprises display module 8, and display module 8 is connected with gas pressure monitoring device 7b, and display module 8 shows gas pressure value in real time.Display module 8 is liquid crystal display screen or LCD display.
Technical conceive of the present utility model is: carbon dioxide air source gas after filtration, thermoregulation, secondary or the above gas decompression of secondary, meet temperature and the air pressure that treatment requires to reach, the operator realizes or regularly air feed control direct to the carbon dioxide of digestion therapeutic endoscopy by control electromagnetic valve 7f.
The effect of pneumatic filter 7a is foreign body and the impurity of eliminating in the carbon dioxide, and (for example adopting 0.5um filter element or other standard filtering core) prevents from the follow-up air relief valve fault that causes because of foreign body impurity from improving security of supply gas.
Gas pressure monitoring device 7b monitoring input bleed pressure state, the pressure signal that gas pressure monitoring device 7b obtains is inputted display device by pressure transmitter, and display device shows gas pressure value in real time.Give alarm and initiatively cut off electromagnetic valve 7f and block carbon dioxide and export at the source of the gas below the 343.2KPa and more than the 1.400MPa for pressure; Atmospheric pressure state in normal air feed scope 343.2KPa～1.400MPa is dynamically shown by display unit.
Conditioning oven 7c is used for the carbon dioxide of input is carried out preheating, guarantees that the output gas temperature prevents that supercool gas from directly entering human body natural's tract under the surgical condition in 15 ℃～35 ℃.Conditioning oven 7c adopts low-voltage direct control, is provided with specified operating point and is 36～40 ℃ highly sensitive bimetal plate heat protector, when because fault when causing gas temperature unusual, can be cut off heating automatically.Using the purpose of conditioning oven 7c is to keep carbon dioxide constant temperature, can reduce the complication such as pain behind the corrective surgery and vomiting.
The carbon dioxide that the first decompressor will enter main frame is reduced to suitable for low pressure; (its amount of exports definite value can be arbitrary value in 100 KPa～500KPa scope); its output is provided with the safety relief protector, abnormal air-pressure is discharged, with the safety of protection rear class device pipeline.The safety relief value of backing stage pressure reducers allows in the air pressure range in the maximum of rear class decompressor.
The second decompressor is as second level gas pressure reducer, equally also with the safety relief protector.Its input air pressure is in 100KPa～500KPa, is output as 0～45KPa, safety relief value 45 KPa.By two-stage (or more than) measures to reduce stresses, and all with pressure relief device, its single failure risk reduces greatly, and gas path component all adopts and prohibits oil and prohibit the water conservancy project skill simultaneously, can be safely to digestion endoscopic surgery system supply carbon dioxide.
The effect of electromagnetic valve 7f is controlled output of opening or turn-offing carbon dioxide.Feeder provides multiple control modes, as: panel inching button, foot switch, wire controlling button etc., to make things convenient for practical operation.
Simultaneously, the output of carbon dioxide there is regularly turn-off function.The timing mode of operator selectable majority kind duration carries out the service time restriction to output gas, and the time is to automatically shutting down electromagnetic valve 7f, to prevent from forgeing and saving source of the gas.
The output flow monitor is set not only can the Real Time Monitoring gas flow, avoids gas temperature too high or too low.The more important thing is, when electromagnetic valve for adjusting 7f aperture not, if gas flow reduces, the digestive tract that human body then is described has pathological changes, such as perforation, gas can't and gather in human abdominal cavity by the automatic eliminating of human body alimentary canal, causes the intrinsic pressure rising of human body, gas flow to reduce.Therefore, when gas flow was lower than lower limit flow, necessary shut electromagnetic valve 7f prevented that gas from continuing to accumulate in the human body, plays a protective role.
Feeder can adopt the high-brightness wide visual angle display screens such as OLED, LED, LCD, display floater can vertically or tilt, and displaying contents comprises Displaying timer pattern, regularly elapsed time, bleed pressure prompting, gas temperature, output state prompting, fault prompting etc.
The control assembly of feeder is used for Gather and input gas pressure signal, temperature signal, gas output pressure or flow signal, and signal monitored, temperature is regulated and control, 7f controls to electromagnetic valve, abnormal air-pressure, temperature is reported to the police also can initiatively cut off electromagnetic valve 7f.
The utlity model has the advantage of direct exchange gas source under the prerequisite that does not change the scope original structure.
The described content of this description embodiment only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reaches the equivalent technologies means that design can be expected according to this utility model in those skilled in the art.
Claims (9)
1. the feeder that is used for digestive endoscopy, the air accumulator that comprises stored-gas, with the tank connected source of the gas input interface of gas storage, the gas pressure monitoring device of the gas pressure of monitoring source of the gas input interface, the pressure that air accumulator is exported gas is adjusted to the pressure-reduction module of the pressure limit that scope can bear, be connected the also Output estimation device of gas-monitoring real-time traffic with pressure-reduction module, with the source of the gas output interface that is connected with the Output estimation device, and the gas injection bottle that is connected with the water injection bottle interface of digestive endoscopy; The gas injection bottle is provided with intake interface, and intake interface and source of the gas output interface are tightly connected.
2. the feeder for digestive endoscopy as claimed in claim 1, it is characterized in that: storing carbon dioxide in the air accumulator, feeder also comprises the pneumatic filter that is arranged between source of the gas input interface and the gas pressure monitor impurity that is used for the filtering carbon dioxide, be arranged between gas pressure monitoring device and the pressure-reduction module carbon dioxide is carried out thermostatically controlled conditioning oven, and be arranged at electromagnetic valve between gas pressure monitoring device and the Output estimation device.
3. the feeder for digestive endoscopy as claimed in claim 2, it is characterized in that: described feeder also has flow controller, prestores lower limit flow value and upper flow value in the flow controller;
In the actual flow value input flow rate controller that the Output estimation device obtains, flow controller compares respectively actual flow value and upper flow value, actual flow value and lower limit flow value, when the actual flow value greater than upper flow value or actual flow value during less than the lower limit flow value, the Output estimation device sends reports to the police and cuts off electromagnetic valve.
4. such as the described feeder for digestive endoscopy of one of claim 1-3, it is characterized in that: pressure-reduction module comprises the second air relief valve that the first air relief valve that input is connected with conditioning oven and outfan are connected with electromagnetic valve, the outfan of the first air relief valve is connected with the input of the second air relief valve, and the first air relief valve and the second air relief valve are all with corresponding safety relief valve.
5. the feeder for digestive endoscopy as claimed in claim 4 is characterized in that: feeder also comprises the gauge tap that the control electromagnetic valve opens or cuts out, and gauge tap is panel inching button or foot switch or wire controlling button.
6. the feeder for digestive endoscopy as claimed in claim 5, it is characterized in that: electromagnetic valve is connected with intervalometer, and intervalometer turn-offs electromagnetic valve according to timing length; The timing length of intervalometer has a plurality of.
7. the feeder for digestive endoscopy as claimed in claim 6, it is characterized in that: feeder also comprises display module, and display module is connected with the gas pressure monitoring device, and display module shows gas pressure value in real time.
8. the feeder for digestive endoscopy as claimed in claim 7, it is characterized in that: display module is liquid crystal display screen or LCD display.
9. the feeder for digestive endoscopy as claimed in claim 1 is characterized in that: gases used in the air accumulator is noble gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389903 CN203234824U (en) | 2012-08-07 | 2012-08-07 | Gas supply device for digestive endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389903 CN203234824U (en) | 2012-08-07 | 2012-08-07 | Gas supply device for digestive endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203234824U true CN203234824U (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220389903 Expired - Lifetime CN203234824U (en) | 2012-08-07 | 2012-08-07 | Gas supply device for digestive endoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203234824U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102871730A (en) * | 2012-08-07 | 2013-01-16 | 李兆申 | Gas supply device for digestive endoscope |
| CN104545774A (en) * | 2015-01-30 | 2015-04-29 | 合肥德铭电子有限公司 | Integrated, mobile and minimally invasive electronic endoscope system |
-
2012
- 2012-08-07 CN CN 201220389903 patent/CN203234824U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102871730A (en) * | 2012-08-07 | 2013-01-16 | 李兆申 | Gas supply device for digestive endoscope |
| CN102871730B (en) * | 2012-08-07 | 2014-12-31 | 李兆申 | Gas supply device for digestive endoscope |
| CN104545774A (en) * | 2015-01-30 | 2015-04-29 | 合肥德铭电子有限公司 | Integrated, mobile and minimally invasive electronic endoscope system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200433 No. 168 Changhai Road, Shanghai, Yangpu District Co-patentee after: Wang Dong Patentee after: Li Zhaoshen Co-patentee after: Wu Renpei Co-patentee after: Hangzhou Anjisi Medical Science and Technology Co.,Ltd. Address before: 200433 No. 168 Changhai Road, Shanghai, Yangpu District Co-patentee before: Wang Dong Patentee before: Li Zhaoshen Co-patentee before: Wu Renpei Co-patentee before: HANGZHOU AGS MEDTECH Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200409 Address after: 311100 Building 597 Kangxin Road, Yuhang District, Hangzhou City, Zhejiang Province, 5 and 6 (except room 103 and 202) Patentee after: Hangzhou Anjisi Medical Science and Technology Co.,Ltd. Address before: 200433 No. 168 Changhai Road, Shanghai, Yangpu District Co-patentee before: Wang Dong Patentee before: Li Zhaoshen Co-patentee before: Wu Renpei Co-patentee before: Hangzhou Anjisi Medical Science and Technology Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |