CN210990453U - Pneumoperitoneum machine and high-low pressure air inlet separation device thereof - Google Patents
Pneumoperitoneum machine and high-low pressure air inlet separation device thereof Download PDFInfo
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- CN210990453U CN210990453U CN201921005552.6U CN201921005552U CN210990453U CN 210990453 U CN210990453 U CN 210990453U CN 201921005552 U CN201921005552 U CN 201921005552U CN 210990453 U CN210990453 U CN 210990453U
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Abstract
The application provides an pneumoperitoneum machine and high-low pressure air inlet separator thereof. The device comprises a high-pressure air inlet, a first reverse flow limiting element, a pressure reduction module, an air outlet, a low-pressure air inlet and a second reverse flow limiting element; the high-pressure air inlet is used for being connected with a high-pressure air source, the first reverse flow limiting element is connected between the high-pressure air inlet and the pressure reducing module, and the air outlet is connected to one end, far away from the high-pressure air inlet, of the pressure reducing module; the high-pressure gas input through the high-pressure gas inlet and the first backflow limiting element is decompressed through the decompression module and then is supplied through the gas outlet; the low-pressure air inlet is used for being connected with a low-pressure air source, and the second backflow limiting element is connected between the low-pressure air inlet and the air outlet; the low-pressure gas input through the low-pressure gas inlet and the second backflow limiting element is supplied through the gas outlet. This application can effectively avoid high low pressure air supply to insert the mistake, reduces high pressure use risk.
Description
Technical Field
The application relates to the field of laparoscopic surgery, in particular to a pneumoperitoneum machine and a high-low pressure air inlet separating device thereof。
Background
With the progress of scientific technology and the demand for aesthetics, minimally invasive surgery has developed rapidly in recent years, with laparoscopic surgery being the most important. Pneumoperitoneum is required to be established during laparoscopic surgery to provide the operator with an adequate field of view while still providing adequate operating space. According to clinical requirements, considering the influence on the functions of a human body, the medium used for establishing pneumoperitoneum in the laparoscopic surgery is carbon dioxide, the carbon dioxide is generally stored in a steel cylinder, the pressure of the low-temperature liquid carbon dioxide filled into the steel cylinder is generally 6-8MPa at room temperature, the pressure is higher, and certain potential safety hazards exist in the using process.
The pneumoperitoneum machine on the existing market mostly adopts the scheme that the high-low pressure interface is unified, namely, the air inlet of the pneumoperitoneum machine can be connected with a low-pressure pipe, namely, the high-pressure gas in the steel cylinder is decompressed through a decompression valve, and meanwhile, the high-pressure pipe can be connected, namely, the high-pressure gas in the steel cylinder is directly connected with the pneumoperitoneum machine. Therefore, the high-low pressure air inlet interface is unified, so that a user is difficult to distinguish whether high-pressure air or low-pressure air is connected into the pneumoperitoneum machine, and accidents are easy to happen.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application discloses pneumoperitoneum machine and high-low pressure air inlet separator thereof can correctly separate high-low pressure air inlets to solve the problem.
The embodiment of the application discloses high low pressure air inlet separator includes: the backflow prevention device comprises a high-pressure air inlet, a first backflow limiting element, a pressure reduction module, an air outlet, a low-pressure air inlet and a second backflow limiting element; the high-pressure air inlet is used for being connected with a high-pressure air source, the first reverse flow limiting element is connected between the high-pressure air inlet and the pressure reducing module, and the air outlet is connected to one end, far away from the high-pressure air inlet, of the pressure reducing module; the high-pressure gas input through the high-pressure gas inlet and the first backflow limiting element is decompressed through the decompression module and then is supplied through the gas outlet; the low-pressure air inlet is used for being connected with a low-pressure air source, and the second backflow limiting element is connected between the low-pressure air inlet and the air outlet; the low-pressure gas input through the low-pressure gas inlet and the second backflow limiting element is supplied through the gas outlet.
The utility model discloses pneumoperitoneum machine, which comprises a main engine, set up on the host computer there is high low pressure air inlet separator, pneumoperitoneum machine still includes the pneumoperitoneum pipe, the one end of pneumoperitoneum pipe is connected the gas outlet, the other end are used for being connected with surgical equipment aerifys and form the operation space that has predetermined field of vision scope in order to patient's abdominal cavity.
The utility model provides a pneumoperitoneum machine and high low pressure air inlet separator thereof, via the high pressure air inlet with the first high-pressure gas who flows backward the restriction element input passes through after the relief pressure valve decompression the gas outlet carries out the air feed, via the low pressure air inlet with the second flows backward the low-pressure gas of restriction element input passes through the gas outlet carries out the air feed, more helps the user to divide clear the high pressurized air source or the low pressurized air source that inserts the pneumoperitoneum machine, reduces high pressure use risk.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a high-low pressure inlet separation device in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a sealing joint for a high-pressure intake port according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a sealing joint for a low-pressure intake port according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a high-low pressure inlet separation device in another embodiment of the present application.
Figure 5 is a block diagram of a pneumoperitoneum machine in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The description which follows is a preferred embodiment for carrying out the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a high-pressure and low-pressure air inlet separation device 10 according to an embodiment of the present application. The high and low pressure inlet separation device 10 comprises a high pressure inlet 101, a first reverse flow restriction element 102, a pressure reduction module 103, an outlet 104, a low pressure inlet 105 and a second reverse flow restriction element 106. The high-pressure air inlet 101 is used for connecting a high-pressure air source 200. The first backflow-limiting element 102 is connected between the high-pressure gas inlet 101 and the pressure-reducing module 103. The air outlet 104 is connected to one end of the pressure reduction module 103 far away from the high-pressure air inlet 101. The high-pressure gas input through the high-pressure gas inlet 101 and the first backflow limiting element 102 is decompressed by the decompression module 103 and then supplied through the gas outlet 104. The low-pressure gas inlet 105 is used for connecting a low-pressure gas source 300. The second backflow restriction element 106 is connected between the low pressure inlet 105 and the outlet 104. The low-pressure gas supplied via the low-pressure gas inlet 105 and the second backflow restriction element 106 is supplied through the gas outlet 104.
Thus, in this application, high low pressure air inlet separator 10 includes high pressure air inlet 101 and low pressure air inlet 105, via high pressure air inlet 101 with the high-pressure gas process of the palirrhea restrictive element 102 input of first decompression module 103 decompression back is passed through gas outlet 104 supplies gas, via low pressure air inlet 105 with the low-pressure gas of the palirrhea restrictive element 106 input of second passes through gas outlet 104 supplies gas, and high low pressure gas circuit separation more helps the user to divide clear what insert be high pressure air supply 200 or low pressure air supply 300, reduces high pressure use risk.
Specifically, in one embodiment, the high pressure gas source 200 is a gas source with a pressure above 1MPa, and the low pressure gas source 300 is a gas source with a pressure of 400-600 kPa.
Specifically, in one embodiment, the first backflow-limiting element 102 is a high-pressure one-way valve or a shuttle valve that allows the gas flow to flow in the direction from the high-pressure gas inlet 101 to the gas outlet 104, but does not allow the gas flow to flow in the direction from the gas outlet 104 to the high-pressure gas inlet 101 in the opposite direction, and prevents the gas from flowing in the opposite direction. The second backflow-limiting element 106 is a low-pressure one-way valve or shuttle valve that allows the flow of gas in the direction from the low-pressure gas inlet 105 to the gas outlet 104, but does not allow the flow of gas in the direction from the gas outlet 104 to the low-pressure gas inlet 105 in the opposite direction, preventing the flow of gas in the opposite direction. Therefore, the first backflow limiting element 102 and the second backflow limiting element 106 ensure that the high-pressure and low-pressure air inlet paths are independent of each other, cannot affect each other, and ensure the safety of air supply.
Specifically, in one embodiment, the high pressure inlet 101 and the low pressure inlet 105 are different in structure and/or size, and the sealing joints respectively engaged with the high pressure inlet 101 and the low pressure inlet 105 are different in structure and/or size. Specifically, in one embodiment, the difference in structure and/or size between the high pressure inlet 101 and the low pressure inlet 105 may be, but is not limited to, a difference in fitting structure, a difference in fitting size, wherein the fitting size includes, but is not limited to, a difference in thread size, and the like. Therefore, the sealing joints respectively matching with the high pressure gas inlet 101 and the low pressure gas inlet 105 are mutually exclusive, that is, the sealing joint connecting with the high pressure gas source 200 cannot be connected to the low pressure gas inlet 105, and the sealing joint connecting with the low pressure gas source 300 cannot be connected to the high pressure gas inlet 101, so that the dangerous event of connecting the high pressure gas source 200 to the low pressure gas inlet 105 can be completely avoided.
Specifically, in one embodiment, referring to fig. 2, the sealing joint engaged with the high-pressure air inlet 101 is a ball-end sealing joint 1010. In one embodiment, the ball-sealing joint 1010 is made of stainless steel, and can withstand high pressure of 10MPa or more.
The ball-end sealing joint 1010 includes an end cap 1011, a connecting rod 1013, and a ball joint 1015. The end cap 1011 is disk-shaped. The connecting rod 1013 has a cylindrical shape. The connecting rod 1013 is connected between the end cap 1011 and the ball joint 1015. The diameters of the end cover 1011, the connecting rod 1013 and the spherical joint 1015 are gradually reduced, the diameter difference between the end cover 1011 and the connecting rod 1013 is large, and the diameter difference between the connecting rod 1013 and the spherical joint 1015 is small. Further, the connecting rod 1013 is stepped. The diameter of the connecting rod 1013 on the side near the end cap 1011 is larger than the diameter of the connecting rod 1013 on the side near the ball joint 1015. It will be appreciated that the configuration of the high pressure inlet 101 is compatible with the configuration of the ball-end seal joint 1010 with which it is engaged. And will not be described in detail herein. It can be understood that the ball-sealing joint 1010 is connected with the connecting pipe of the high-pressure air source 200, and in practical use, the ball-sealing joint 1010 needs to be connected to the high-pressure air inlet 101 by means of an external tool.
Specifically, in one embodiment, referring also to fig. 3, the sealing joint that mates with the low pressure inlet 105 is a through joint 1050. In one embodiment, the through joint 1050 is a through joint that can be manually screwed, for example, the through joint 1050 may be a dis joint using YY/T0799-.
The through joint 1050 includes a nut 1051 and a screw 1053. The nut 1051 and the screw 1053 are both cylindrical. The nut 1051 is coupled to one end of the screw 1053. The diameter of the screw 1053 is smaller than the diameter of the nut 1051, and the difference in diameter between the nut 1051 and the screw 1053 is smaller than the difference in diameter between the end cap 1011 and the connecting rod 1013. A thread 1055 is arranged at one end of the screw 1053 close to the nut 1051. It will be appreciated that the configuration of the low pressure inlet 105 is compatible with the configuration of the through-connection 1050 with which it is mated. The through joint 1050 is connected to the connecting pipe of the low pressure gas source 300, and in practical use, the through joint 1050 is connected to the low pressure gas inlet 105 only by hand.
Therefore, due to the different structures and/or sizes of the high-pressure air inlet 101 and the low-pressure air inlet 105, and the different connection manners between the high-pressure air inlet 101 and the ball-sealing joint 1010 and between the low-pressure air inlet 105 and the through-connection 1050, the high-pressure air inlet 101 and the low-pressure air inlet 105 are mutually exclusive in design, that is, the ball-sealing joint 1010 connected with the high-pressure air source 200 cannot be connected to the low-pressure air inlet 105, and the through-connection 1050 connected with the low-pressure air source 300 cannot be connected to the high-pressure air inlet 101. Thus, the occurrence of the event that the high pressure gas source 200 is connected to the low pressure gas inlet 105 can be fundamentally prevented.
Further, in an embodiment, referring to fig. 1 again, an end of the second backflow limiting element 106 away from the low pressure gas inlet 105 is further connected to the pressure reduction module 103, so that the low pressure gas input through the low pressure gas inlet 105 and the second backflow limiting element 106 is supplied after being reduced in pressure by the pressure reduction module 103.
Specifically, in one embodiment, the pressure reducing module 103 includes a high pressure reducing valve 1031 and a low pressure reducing valve 1033, one end of the high pressure reducing valve 1031 is connected to one end of the first reverse flow limiting element 102 away from the high pressure air inlet 101, the other end of the high pressure reducing valve 1031 is connected to one end of the low pressure reducing valve 1033, and the other end of the low pressure reducing valve 1033 is connected to the air outlet 104; the end of the second reverse flow restriction element 106 remote from the low pressure inlet 105 is also connected between the high pressure relief valve 1031 and the low pressure relief valve 1033.
Thus, the flow of air entering from the low pressure inlet 105 may also be reduced by the low pressure relief valve 1033, further avoiding the risk of misconnecting the high pressure air source 200 to the low pressure inlet 105.
It is understood that, referring to fig. 4, in other embodiments, the pressure reducing module 103 comprises a high pressure reducing valve 1031 and a low pressure reducing valve 1033, one end of the high pressure reducing valve 1031 is connected to one end of the first reverse flow limiting element 102 away from the high pressure air inlet 101, the other end of the high pressure reducing valve 1031 is connected to one end of the low pressure reducing valve 1033, and the other end of the low pressure reducing valve 1033 is connected to the air outlet 104; the second reverse flow restriction element 106 is also connected to an end of the high pressure relief valve 1031 near the high pressure inlet port 101.
Thus, the air flow entering from the low pressure air inlet 105 can also pass through the pressure reduction of the high pressure relief valve 1031 and the low pressure relief valve 1033, thereby further avoiding the danger of mistakenly connecting the high pressure air source 200 to the low pressure air inlet 105.
It will be appreciated that in other embodiments the pressure relief module 103 is a primary pressure relief valve, the end of which adjacent the high pressure inlet 101 is connected to the second backflow restriction element 106.
Thus, the flow of gas entering from the low pressure inlet 105 may also be reduced by the primary pressure reducing valve, further avoiding the risk of connecting a high pressure gas source 200 to the low pressure inlet 105 by mistake.
It will be appreciated that in other embodiments, the pressure relief module 103 is a two-stage pressure relief valve, the end of which near the high pressure inlet 101 is connected to the second backflow restriction element 106.
Thus, the flow of gas entering from the low pressure inlet 105 may also be reduced by the two-stage pressure reducing valve, further avoiding the risk of connecting a high pressure gas source 200 to the low pressure inlet 105 by mistake.
It is understood that other air path elements, such as a speed regulating valve, etc., may be connected between the pressure reducing module 103 and the air outlet 104. Therefore, the pressure reducing module 103 is connected to the air outlet 104, including but not limited to, the pressure reducing module 103 is directly connected to the air outlet 104, or the pressure reducing module 103 is connected to the air outlet 104 through other air path elements.
Referring to fig. 5, fig. 5 is a block diagram of a pneumoperitoneum machine 100 according to an embodiment of the present application. The pneumoperitoneum machine 100 is used for building pneumoperitoneum to increase the abdominal pressure and move up the diaphragm during laparoscopic surgery, so that a good visual field and an enough operation space are provided for the surgery, and the surgery can be smoothly performed. Specifically, the pneumoperitoneum machine 100 includes a main machine 11 and a pneumoperitoneum tube 12. The high-low pressure air inlet separation device 10 is arranged on the main machine 11. One end of the pneumoperitoneum tube 12 is connected to the air outlet 104, and the other end is used for connecting with a surgical device 400 to ventilate the abdominal cavity of the patient and form a surgical operation space with a preset visual field range.
Specifically, in one embodiment, the high pressure inlet 101 is a high pressure inlet of the pneumoperitoneum machine 100, and the low pressure inlet 105 is a low pressure inlet of the pneumoperitoneum machine 100. The air outlet 104 is an air outlet of the pneumoperitoneum machine 100 and is used for being connected with a pneumoperitoneum tube 12.
Thus, the high and low pressure inlets of the pneumoperitoneum machine 100 are separated, avoiding the risk of connecting the high pressure gas source 200 to the low pressure inlet 105 by mistake.
In the embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and embodiments of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (11)
1. A high and low pressure air inlet separation apparatus, comprising: the backflow prevention device comprises a high-pressure air inlet, a first backflow limiting element, a pressure reduction module, an air outlet, a low-pressure air inlet and a second backflow limiting element; the high-pressure air inlet is used for being connected with a high-pressure air source, the first reverse flow limiting element is connected between the high-pressure air inlet and the pressure reducing module, and the air outlet is connected to one end, far away from the high-pressure air inlet, of the pressure reducing module; the high-pressure gas input through the high-pressure gas inlet and the first backflow limiting element is decompressed through the decompression module and then is supplied through the gas outlet; the low-pressure air inlet is used for being connected with a low-pressure air source, and the second backflow limiting element is connected between the low-pressure air inlet and the air outlet; the low-pressure gas input through the low-pressure gas inlet and the second backflow limiting element is supplied through the gas outlet.
2. The high and low pressure inlet separation device of claim 1, wherein the first reverse flow restriction element is a high pressure check valve or a shuttle valve; the second reverse flow restriction element is a low pressure check valve or a shuttle valve.
3. High and low pressure inlet port separation apparatus as claimed in claim 1, wherein the high pressure inlet port and the low pressure inlet port are of different construction and/or size; the sealing joints respectively cooperating with the high-pressure inlet and the low-pressure inlet are of different structures and/or sizes.
4. The high and low pressure inlet port separation device of claim 3, wherein the high pressure inlet port sealing joint is a ball-end sealing joint; the sealing joint of the low-pressure air inlet is a straight joint.
5. The high and low pressure inlet port separation device of claim 4, wherein the ball-end seal joint is a stainless steel seal joint; the straight-through joint is a straight-through joint which can be manually screwed.
6. The high-low pressure gas inlet separation device according to claim 1, wherein an end of the second backflow restriction element remote from the low pressure gas inlet is further connected to the pressure reduction module, so that low pressure gas input through the low pressure gas inlet and the second backflow restriction element is supplied through the gas outlet after being reduced in pressure by the pressure reduction module.
7. The high-low pressure air inlet separating device according to claim 6, wherein the pressure reducing module comprises a high pressure reducing valve and a low pressure reducing valve, one end of the high pressure reducing valve is connected to one end of the first reverse flow limiting element far away from the high pressure air inlet, the other end of the high pressure reducing valve is connected with one end of the low pressure reducing valve, and the other end of the low pressure reducing valve is connected with the air outlet; the end of the second reverse flow limiting element, which is far away from the low-pressure air inlet, is also connected between the high-pressure reducing valve and the low-pressure reducing valve.
8. The high-low pressure air inlet separating device according to claim 6, wherein the pressure reducing module comprises a high pressure reducing valve and a low pressure reducing valve, one end of the high pressure reducing valve is connected to one end of the first reverse flow limiting element far away from the high pressure air inlet, the other end of the high pressure reducing valve is connected with one end of the low pressure reducing valve, and the other end of the low pressure reducing valve is connected with the air outlet; the second backflow-limiting element is also connected to an end of the high-pressure relief valve proximate the high-pressure inlet.
9. The high and low pressure inlet separation device of claim 6, wherein the pressure reducing module is a primary pressure reducing valve, one end of the primary pressure reducing valve near the high pressure inlet being connected to the second reverse flow restriction element.
10. The high and low pressure inlet separation device of claim 6, wherein the pressure relief module is a secondary pressure relief valve, one end of the secondary pressure relief valve near the high pressure inlet being connected to the second reverse flow restriction element.
11. A pneumoperitoneum machine, comprising a main machine, wherein the main machine is provided with a high-low pressure air inlet separation device, wherein the high-low pressure air inlet separation device is the high-low pressure air inlet separation device according to any one of claims 1 to 10, and the pneumoperitoneum machine further comprises a pneumoperitoneum tube, one end of the pneumoperitoneum tube is connected with the air outlet, and the other end of the pneumoperitoneum tube is used for being connected with surgical equipment so as to inflate the abdominal cavity of a patient and form a surgical operation space with a preset visual field range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921005552.6U CN210990453U (en) | 2019-06-28 | 2019-06-28 | Pneumoperitoneum machine and high-low pressure air inlet separation device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921005552.6U CN210990453U (en) | 2019-06-28 | 2019-06-28 | Pneumoperitoneum machine and high-low pressure air inlet separation device thereof |
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| CN210990453U true CN210990453U (en) | 2020-07-14 |
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| CN201921005552.6U Active CN210990453U (en) | 2019-06-28 | 2019-06-28 | Pneumoperitoneum machine and high-low pressure air inlet separation device thereof |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Mindray Animal Medical Technology Co.,Ltd. Assignor: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS Co.,Ltd. Contract record no.: X2022440020009 Denomination of utility model: Insufflation machine and its high and low pressure air inlet separation device Granted publication date: 20200714 License type: Common License Record date: 20220804 |
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