CN117531057A - Hepatobiliary pancreatic surgery drainage device - Google Patents
Hepatobiliary pancreatic surgery drainage device Download PDFInfo
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- CN117531057A CN117531057A CN202311827746.5A CN202311827746A CN117531057A CN 117531057 A CN117531057 A CN 117531057A CN 202311827746 A CN202311827746 A CN 202311827746A CN 117531057 A CN117531057 A CN 117531057A
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- air pressure
- pressure
- drainage
- liquid storage
- storage container
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- 238000001356 surgical procedure Methods 0.000 title abstract description 5
- 238000003860 storage Methods 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 230000001105 regulatory effect Effects 0.000 claims abstract description 43
- 210000000056 organ Anatomy 0.000 claims abstract description 35
- 238000011010 flushing procedure Methods 0.000 claims abstract description 33
- 238000004140 cleaning Methods 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000005485 electric heating Methods 0.000 claims abstract description 17
- 210000000496 pancreas Anatomy 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 17
- 238000007460 surgical drainage Methods 0.000 claims description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 11
- 239000011780 sodium chloride Substances 0.000 claims description 11
- 230000037303 wrinkles Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims 3
- 239000012530 fluid Substances 0.000 claims 1
- 238000003973 irrigation Methods 0.000 claims 1
- 230000002262 irrigation Effects 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract description 3
- 239000002504 physiological saline solution Substances 0.000 description 18
- 238000005406 washing Methods 0.000 description 10
- 210000004185 liver Anatomy 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 206010020488 hydrocele Diseases 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002757 inflammatory effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000007363 regulatory process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/73—Suction drainage systems comprising sensors or indicators for physical values
- A61M1/734—Visual indicating means for flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/73—Suction drainage systems comprising sensors or indicators for physical values
- A61M1/732—Visual indicating means for vacuum pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/77—Suction-irrigation systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1042—Alimentary tract
- A61M2210/1071—Liver; Hepar
Abstract
The invention provides a hepatobiliary pancreas surgery drainage device which comprises a liquid storage container, a first air pressure adjusting device, a second air pressure adjusting device and a drainage tube, wherein the first air pressure adjusting device is connected with the liquid storage container through a first air pressure valve, the second air pressure adjusting device is connected with the liquid storage container through a second air pressure valve, the drainage tube stretches into the liquid storage container, and an exhaust valve, a second flow detection device, an electric heating device, a first flow detection device, a first cleaning module, a second cleaning module, a first miniature ultrasonic transducer and a second miniature ultrasonic transducer are sequentially arranged on the drainage tube. According to the invention, the target pressure of the negative drainage pressure is set according to the contraction change of the inner wall of the diseased organ, the negative drainage pressure is slowly regulated through air pressure balance, the safety and the comfort of negative drainage are greatly improved, and the folds of the inner wall of the diseased organ are subjected to targeted flushing, so that the residual effusion and the attached solid foreign matters are reduced.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a liver, gall and pancreas surgical drainage device.
Background
When treating hydrocele of liver, gall and pancreas, hepatobiliary department often needs to drain the patient, and drain effusion, inflammatory seepage and pus of diseased organs of the patient out of the body so as to reduce infection of the diseased organs of the patient and create conditions for subsequent treatment. The cleaner and more thorough the effusion in the diseased organ of the patient is, the more bacteria breeding of the diseased organ can be inhibited, and the faster the subsequent wound surface of the patient heals. However, there are many folds on the inner wall of the diseased organ, and a certain residual effusion is inevitably left in the folds, and in the drainage process, as the effusion in the diseased organ is reduced, solid foreign matters in the effusion can be separated out and attached to the folds on the inner wall of the diseased organ, and the existence of the residual effusion and attached solid foreign matters is unfavorable for postoperative rehabilitation of liver, gall and pancreas, and meanwhile, bacteria breeding is easily caused.
Disclosure of Invention
In order to solve the technical problems that in the prior art, the hepatobiliary pancreatic surgery drainage device is easy to cause residual effusion and attached solid foreign matters, the hepatobiliary pancreatic surgery drainage device comprises a liquid storage container, a first air pressure adjusting device, a second air pressure adjusting device and a drainage tube, wherein the first air pressure adjusting device is connected with the liquid storage container through a first air pressure valve, the second air pressure adjusting device is connected with the liquid storage container through a second air pressure valve, the drainage tube penetrates into the liquid storage container, and an exhaust valve, a second flow detecting device, an electric heating device, a first flow detecting device, a first cleaning module, a second cleaning module, a first micro ultrasonic transducer and a second micro ultrasonic transducer are sequentially arranged on the drainage tube;
the first micro ultrasonic transducer and the second micro ultrasonic transducer are symmetrically arranged on the upper surface and the lower surface of the drainage tube and are positioned at the port of the drainage tube, and are used for judging shrinkage changes of the inner wall of a diseased organ so as to set target pressure of drainage negative pressure;
the first cleaning module and the second cleaning module are symmetrically arranged on the upper surface and the lower surface of the drainage tube and are used for flushing in a targeted manner according to the distribution condition of folds in the diseased organ;
the exhaust valve is arranged at the part of the drainage tube, which is deep into the liquid storage container, the second flow detection device, the electric heating device and the first flow detection device are positioned between the exhaust valve and the first cleaning module and are positioned at the part of the drainage tube, which is outside the liquid storage container, and the smoothness of the drainage process is ensured by the mutual matching of the electric heating device and the exhaust valve;
the liquid storage container, the first air pressure adjusting device and the second air pressure adjusting device are matched with each other to realize slow adjustment of drainage negative pressure through air pressure balance.
Preferably, the first cleaning module comprises a first physiological saline storage device, a first conveying device and a first flushing device, the first conveying device is connected with the first physiological saline storage device and the first flushing device, the first conveying device conveys physiological saline to the first flushing device, the first flushing device sprays physiological saline to the inner wall folds of the diseased organ, the second cleaning module comprises a second physiological saline storage device, a second conveying device and a second flushing device, the second conveying device is connected with the second physiological saline storage device and the second flushing device, the second conveying device conveys physiological saline to the second flushing device, and the second flushing device sprays physiological saline to the inner wall folds of the diseased organ.
Preferably, the first flushing device comprises a first base, a first sliding cover, a first micro spray head and a first micro camera, wherein the first micro spray head and the first micro camera are alternately arranged on the surface of the first base, the first base can provide physiological saline for the first micro spray head, and the first sliding cover is arranged above the first base.
Preferably, in the working process, the first cleaning module and the second cleaning module are both located in the diseased organ, the first sliding cover is opened, the first miniature camera shoots the diseased organ, the distribution situation of wrinkles in the diseased organ can be obtained by analyzing shooting pictures, whether each first miniature spray head is opened or not is controlled according to the distribution situation of wrinkles, and the opening area of each first miniature spray head is large or small.
Preferably, in the working process, the first flow detection device and the second flow detection device detect actual flow in the drainage tube, and when the actual flow is lower than a flow threshold, the electric heating device is started to open the exhaust valve.
Preferably, the first flow detection device and the second flow detection device both adopt external clamping type ultrasonic flow meters, and the electric heating device adopts an electric heating film wrapping the drainage tube.
Preferably, the regulation of the drainage negative pressure is carried out in such a way that a target pressure P of the drainage negative pressure is determined T Setting an intermediate pressure P M Regulating the pressure of the first air pressure regulating device to a target pressure P T1 Regulating the pressure of the second air pressure regulating device to a target pressure P T2 The first air pressure valve is opened, the second air pressure valve is closed, and the pressure inside the liquid storage container reaches the middle pressure P through air pressure balance after the liquid storage container is communicated with the first air pressure regulating device M Subsequently, the first air pressure valve is closed, the second air pressure valve is opened, and the pressure inside the liquid storage container reaches the target pressure P through the air pressure balance after the liquid storage container is communicated with the second air pressure regulating device T And, the pressure inside the liquid storage container is maintained at a target pressure P by the second air pressure adjusting device T 。
Preferably, the intermediate pressure P M ＝(P C +P T ) 2, wherein P C The target pressure P is the current pressure inside the liquid storage container T1 ＝[P M (V C +V PA1 )-V C P C ]/V PA1 Wherein V is C For the current gas volume of the reservoir, V PA1 For the volume of the first air pressure regulating device, the target pressure P T2 ＝[P T (V C +V PA2 )-V C P M ]/V PA2 Wherein V is PA2 Is the volume of the second air pressure regulating device.
Preferably, the reservoir includes a first pressure sensor and a level sensor.
Preferably, the first air pressure adjusting device comprises an air pressure adjusting container and an air conveying pipe, the air conveying pipe stretches into the air pressure adjusting container, a second pressure sensor is arranged inside the air pressure adjusting container, and an air inlet valve, a fine adjusting vacuum pump and a rough adjusting vacuum pump are sequentially arranged on the air conveying pipe.
Compared with the prior art, the invention has the following beneficial effects:
the target pressure of drainage negative pressure is set according to the shrinkage change of the inner wall of the diseased organ, the drainage negative pressure is slowly regulated through air pressure balance, the safety and the comfort of negative pressure drainage are greatly improved, and the folds of the inner wall of the diseased organ are subjected to targeted flushing, so that residual effusion and attached solid foreign matters are reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of a hepatobiliary pancreatic surgical drainage device of the present invention;
FIG. 2 is a schematic view of the first flushing device of the present invention;
fig. 3 is a schematic structural view of a first air pressure regulating device of the present invention.
In the figure, the liquid storage container 1-first pressure sensor 102-liquid level sensor 2-first air pressure regulating device, 21-air pressure regulating container, 22-second pressure sensor, 23-first miniature spray head, 134-first miniature camera head, 14-second miniature vacuum pump, 26-rough vacuum pump, 3-second air pressure regulating device, 4-first air pressure valve, 5-second air pressure valve, 6-drainage tube, 7-exhaust valve, 8-second flow detection device, 9-electric heating device, 10-first flow detection device, 11-first miniature saline storage device, 12-first conveying device, 13-first flushing device, 131-first base, 132-first sliding cover, 133-first miniature spray head, 134-first miniature camera head, 14-second miniature saline storage device, 15-second conveying device, 16-second flushing device, 17-first miniature ultrasonic transducer and 18-second miniature ultrasonic transducer.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present invention, a specific embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1, the hepatobiliary pancreatic surgical drainage device provided by the invention comprises a liquid storage container 1, a first air pressure adjusting device 2, a second air pressure adjusting device 3 and a drainage tube 6. The first air pressure regulating device 2 is connected with the liquid storage container 1 through the first air pressure valve 4, the second air pressure regulating device 3 is connected with the liquid storage container 1 through the second air pressure valve 5, and the drainage tube 6 penetrates into the liquid storage container 1. The exhaust valve 7, the second flow detection device 8, the electric heating device 9, the first flow detection device 10, the first cleaning module, the second cleaning module, the first miniature ultrasonic transducer 17 and the second miniature ultrasonic transducer 18 are sequentially arranged on the drainage tube 6.
The first micro ultrasonic transducer 17 and the second micro ultrasonic transducer 18 are symmetrically arranged on the upper surface and the lower surface of the drainage tube 6 and are positioned at the port of the drainage tube 6, the first micro ultrasonic transducer 17 and the second micro ultrasonic transducer 18 generate high-frequency ultrasonic waves, the high-frequency ultrasonic waves are scattered and reflected at the inner wall of a diseased organ, the ultrasonic waves partially reflected back are converted back into electric signals by the micro ultrasonic transducers, the distance between the micro ultrasonic transducers and the specific position of the inner wall can be obtained through analyzing the electric signals, in the working process, the first micro ultrasonic transducer 17 and the second micro ultrasonic transducer 18 penetrate into the diseased organ, the distance between the first micro ultrasonic transducer 17 and the specific position of the inner wall is continuously detected, the shrinkage change of the inner wall of the diseased organ is judged according to the change of the distance, the magnitude of the drainage negative pressure is adjusted according to the shrinkage change of the inner wall, and the target pressure of the drainage negative pressure is set.
The first washing module and the second washing module are symmetrically arranged on the upper surface and the lower surface of the drainage tube 6, as shown in fig. 1 and 2, the first washing module comprises a first physiological saline storage device 11, a first conveying device 12 and a first flushing device 13, the first conveying device 12 is connected with the first physiological saline storage device 11 and the first flushing device 13, the first conveying device 12 conveys physiological saline to the first flushing device 13, the first flushing device 13 sprays the physiological saline to the inner wall folds of a diseased organ, the first flushing device 13 comprises a first base 131, a first sliding cover 132, a first micro spray head 133 and a first micro camera 134, the first micro spray head 133 and the first micro camera 134 are alternately arranged on the surface of the first base 131, the first base 131 can provide the physiological saline to the first micro spray head 133, and the first sliding cover 132 is arranged above the first base 131. The second washing module comprises a second physiological saline storage device 14, a second conveying device 15 and a second washing device 16, wherein the second conveying device 15 is connected with the second physiological saline storage device 14 and the second washing device 16, the second conveying device 15 conveys physiological saline to the second washing device 16, the second washing device 16 sprays physiological saline to the folds of the inner wall of a diseased organ, and the structure of the second washing device 16 is the same as that of the first washing device 13. In the working process, the first cleaning module and the second cleaning module are both located in the diseased organ, the first sliding cover 132 of the first flushing device 13 is opened, the first miniature camera 134 shoots the diseased organ, the wrinkle distribution situation in the diseased organ can be obtained by analyzing the shooting picture, whether each first miniature spray head is opened or not and the opening area size of each first miniature spray head are controlled according to the wrinkle distribution situation, and the working mode of the second flushing device 16 is the same as that of the first flushing device 13.
The exhaust valve 7 is arranged at the part of the drainage tube 6 penetrating into the liquid storage container 1, the second flow detection device 8, the electric heating device 9 and the first flow detection device 10 are positioned between the exhaust valve 7 and the first cleaning module, all are positioned at the part of the drainage tube 6 outside the liquid storage container 1, the first flow detection device 10 and the second flow detection device 8 are respectively provided with an external clamping type ultrasonic flowmeter, the electric heating device 9 is provided with an electric heating film for wrapping the drainage tube, in the working process, the first flow detection device 10 and the second flow detection device 8 detect the actual flow in the drainage tube 6, when the actual flow is lower than a flow threshold, the electric heating device 9 is started, the exhaust valve 7 is opened, so that factors of blockage caused by excessive air in the drainage tube, large accumulated liquid viscosity and the like which possibly exist are eliminated, and the smoothness of the drainage process is ensured.
The liquid storage container 1, the first air pressure adjusting device 2 and the second air pressure adjusting device 3 are mutually matched, so that gradient adjustment of drainage negative pressure is realized, and the adjusting process is as follows: determining a target pressure P of the drainage negative pressure T Setting an intermediate pressure P M ＝(P C +P T ) 2, wherein P C For the current pressure inside the reservoir, the pressure of the first pressure regulating device 2 is regulatedTo the target pressure P T1 The pressure of the second air pressure regulating device 3 is regulated to the target pressure P T2 The first air pressure valve 4 is opened, the second air pressure valve 5 is closed, and the pressure inside the liquid storage container 1 reaches the middle pressure P through the air pressure balance after the liquid storage container 1 is communicated with the first air pressure regulating device 2 M Subsequently, the first air pressure valve 4 is closed, the second air pressure valve 5 is opened, and the pressure inside the liquid storage container 1 reaches the target pressure P through the air pressure balance after the liquid storage container 1 and the second air pressure regulating device 3 are communicated T And the pressure inside the liquid storage container 1 is maintained at the target pressure P by the second air pressure adjusting device 3 T . Specifically, according to the ideal gas law and the pressure balance principle, the pressure P= (P) after two containers with different pressures are communicated 1 V 1 +P 2 V 2 )/(V 1 +V 2 )，P 1 V 1 And P 2 V 2 Respectively representing the pressure and the volume of different containers, in order to ensure that the air pressure after the liquid storage container 1 is communicated with the first air pressure regulating device 2 reaches the intermediate pressure P M The target pressure P of the first air pressure adjusting device 2 is set T1 ＝[P M (V C +V PA1 )-V C P C ]/V PA1 ，V C For the current gas volume of the reservoir, V PA1 For ensuring that the air pressure of the liquid storage container 1 and the second air pressure regulating device 3 after being communicated reaches the target pressure P T The target pressure P of the second air pressure adjusting device 3 is set T2 ＝[P T (V C +V PA2 )-V C P M ]/V PA2 ，V PA2 In the calculation, it is assumed that the volume of the gas in the liquid storage container is not changed during the air pressure adjustment process, so as to simplify the operation.
As shown in fig. 1 and 3, the liquid storage container 1 includes a first pressure sensor 101 and a liquid level sensor 102, where the liquid level sensor 102 is configured to detect a current height of the liquid product, and is implemented based on the height of the liquid product: 1) Calculating the current gas volume of the liquid storage container according to the height of the accumulated liquid, and adjusting the drainage negative pressure; 2) When the height of the effusion is larger than the warning valueAnd controlling the hepatobiliary pancreatic surgical drainage device to stop working. The first air pressure adjusting device 2 comprises an air pressure adjusting container 21 and an air pipe 23, the air pipe 23 stretches into the air pressure adjusting container 21, a second pressure sensor 22 is arranged inside the air pressure adjusting container 21, and an air inlet valve 24, a fine adjusting vacuum pump 25 and a rough adjusting vacuum pump 26 are sequentially arranged on the air pipe 23. The fine vacuum pump 25 and the rough vacuum pump 26 are micro vacuum pumps, and the flow rate of the fine vacuum pump 25 is smaller than that of the rough vacuum pump 26, specifically, the flow rate of the fine vacuum pump 25 is 0.2L/min, and the flow rate of the rough vacuum pump 26 is 1L/min. During operation, the internal pressure of the first air pressure regulating device 2 is regulated to the target pressure P by the mutual cooperation of the air inlet valve 24, the fine regulating vacuum pump 25 and the rough regulating vacuum pump 26 T1 The first air pressure valve 4 is opened, the second air pressure valve 5 is closed, the air pressure balance is carried out after the liquid storage container 1 and the first air pressure regulating device 2 are communicated, and the actual air pressure balance process is different from the ideal air pressure balance process, and the target pressure P T1 The calculation of (1) ignores the change of the gas volume in the liquid storage container, and the pressure after the actual air pressure is balanced and the intermediate pressure P M There is a certain deviation, therefore, it is necessary to determine whether the air pressure is stable according to the first pressure sensor 101 and the second pressure sensor 22, and when the air pressure is stable, the pressure after the actual air pressure is balanced is adjusted to the intermediate pressure P by the mutual cooperation of the air inlet valve 24 and the fine-tuning vacuum pump 25 M . The structure and the operation of the second air pressure adjusting device 3 during the air pressure adjusting process are the same as those of the first air pressure adjusting device 2, and it should be noted that the second air pressure adjusting device 3 maintains the target pressure P T Only the intake valve and the fine tuning vacuum pump need to be invoked in the process of (a).
Compared with the prior art, the invention has the following beneficial effects:
1) The contraction change of the inner wall of the diseased organ is judged through the miniature ultrasonic transducer, and the target pressure of the drainage negative pressure is set according to the contraction change of the inner wall, so that the damage to a patient caused by excessive suction force is avoided.
2) The first cleaning module and the second cleaning module are used for flushing in a targeted mode according to the fold distribution condition inside the diseased organ so as to reduce residual effusion and attached solid foreign matters.
3) The smoothness of the drainage process is ensured by the mutual matching of the electric heating device and the exhaust valve.
4) The drainage negative pressure is slowly regulated through air pressure balance by mutually matching the liquid storage container 1, the first air pressure regulating device 2 and the second air pressure regulating device 3, so that uncomfortable feeling of a patient in the pressure regulating process is greatly reduced.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention. It should be noted that equivalent changes to the solution of the present invention without departing from the design structure and principle of the present invention are considered as the protection scope of the present invention for those skilled in the art.
Claims (10)
1. The hepatobiliary and pancreas surgical drainage device is characterized by comprising a liquid storage container, a first air pressure adjusting device, a second air pressure adjusting device and a drainage tube, wherein the first air pressure adjusting device is connected with the liquid storage container through a first air pressure valve, the second air pressure adjusting device is connected with the liquid storage container through a second air pressure valve, the drainage tube penetrates into the liquid storage container, and an exhaust valve, a second flow detection device, an electric heating device, a first flow detection device, a first cleaning module, a second cleaning module, a first miniature ultrasonic transducer and a second miniature ultrasonic transducer are sequentially arranged in the drainage tube;
the first micro ultrasonic transducer and the second micro ultrasonic transducer are symmetrically arranged on the upper surface and the lower surface of the drainage tube and are positioned at the port of the drainage tube, and are used for judging shrinkage changes of the inner wall of a diseased organ so as to set target pressure of drainage negative pressure;
the first cleaning module and the second cleaning module are symmetrically arranged on the upper surface and the lower surface of the drainage tube and are used for flushing in a targeted manner according to the distribution condition of folds in the diseased organ;
the exhaust valve is arranged at the part of the drainage tube, which is deep into the liquid storage container, the second flow detection device, the electric heating device and the first flow detection device are positioned between the exhaust valve and the first cleaning module and are positioned at the part of the drainage tube, which is outside the liquid storage container, and the smoothness of the drainage process is ensured by the mutual matching of the electric heating device and the exhaust valve;
the liquid storage container, the first air pressure adjusting device and the second air pressure adjusting device are matched with each other to realize slow adjustment of drainage negative pressure through air pressure balance.
2. The hepatobiliary pancreatic surgical drainage device of claim 1, wherein said first cleaning module comprises a first saline reservoir, a first delivery device and a first flushing device, said first delivery device is coupled to said first saline reservoir and said first flushing device, said first delivery device delivers saline to said first flushing device, said first flushing device sprays saline to the inner wall folds of the diseased organ, said second cleaning module comprises a second saline reservoir, a second delivery device, and a second flushing device, said second delivery device is coupled to said second saline reservoir and said second flushing device, said second delivery device delivers saline to said second flushing device, said second flushing device sprays saline to the inner wall folds of the diseased organ.
3. The hepatobiliary pancreatic surgical drainage device of claim 2, wherein said first irrigation device comprises a first base, a first sliding cover, a first micro-spray head, and a first micro-camera, said first micro-spray head and said first micro-camera are alternately disposed on a surface of said first base, said first base is capable of providing saline to said first micro-spray head, and said first sliding cover is disposed above said first base.
4. The hepatobiliary pancreatic surgical drainage device according to claim 3, wherein in the working process, the first cleaning module and the second cleaning module are both positioned inside the diseased organ, the first sliding cover is opened, the first miniature camera shoots the inside of the diseased organ, the distribution of wrinkles inside the diseased organ can be obtained by analyzing the shooting picture, and whether each first miniature spray head is opened or not and the opening area size of each first miniature spray head are controlled according to the distribution of wrinkles.
5. The hepatobiliary pancreatic drainage device of claim 1, wherein during operation said first and second flow detection devices detect actual flow in the drain, and when the actual flow is below a flow threshold, said electrical heating device is turned on, opening said exhaust valve.
6. The hepatobiliary pancreatic surgical drainage device of claim 5, wherein said first flow detection device and said second flow detection device each employ an external clamp type ultrasonic flow meter, and said electrical heating device employs an electrical heating membrane that surrounds the drainage tube.
7. The hepatobiliary pancreatic surgical drainage device according to claim 1, wherein the negative drainage pressure is adjusted to determine a target pressure P of the negative drainage pressure T Setting an intermediate pressure P M Regulating the pressure of the first air pressure regulating device to a target pressure P T1 Regulating the pressure of the second air pressure regulating device to a target pressure P T2 The first air pressure valve is opened, the second air pressure valve is closed, and the pressure inside the liquid storage container reaches the middle pressure P through air pressure balance after the liquid storage container is communicated with the first air pressure regulating device M Subsequently, the first air pressure valve is closed, the second air pressure valve is opened, and the pressure inside the liquid storage container reaches the target pressure P through the air pressure balance after the liquid storage container is communicated with the second air pressure regulating device T And, the pressure inside the liquid storage container is maintained at a target pressure P by the second air pressure adjusting device T 。
8. The hepatobiliary pancreatic surgical drainage device of claim 7, wherein the intermediate pressure P M ＝(P C +P T ) 2, wherein P C The target pressure P is the current pressure inside the liquid storage container T1 ＝[P M (V C +V PA1 )-V C P C ]/V PA1 Wherein V is C For the current gas volume of the reservoir, V PA1 For the volume of the first air pressure regulating device, the target pressure P T2 ＝[P T (V C +V PA2 )-V C P M ]/V PA2 Wherein V is PA2 Is the volume of the second air pressure regulating device.
9. The hepatobiliary pancreatic surgical drainage device of any one of claims 7 to 8, wherein said reservoir includes a first pressure sensor and a fluid level sensor.
10. The hepatobiliary pancreatic surgical drainage device according to any one of claims 7 to 8, wherein said first air pressure regulating device comprises an air pressure regulating container and an air delivery pipe, said air delivery pipe extends into said air pressure regulating container, a second pressure sensor is provided inside said air pressure regulating container, and an air intake valve, a fine tuning vacuum pump and a coarse tuning vacuum pump are sequentially provided in said air delivery pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311827746.5A CN117531057A (en) | 2023-12-28 | 2023-12-28 | Hepatobiliary pancreatic surgery drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311827746.5A CN117531057A (en) | 2023-12-28 | 2023-12-28 | Hepatobiliary pancreatic surgery drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117531057A true CN117531057A (en) | 2024-02-09 |
Family
ID=89790284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311827746.5A Pending CN117531057A (en) | 2023-12-28 | 2023-12-28 | Hepatobiliary pancreatic surgery drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117531057A (en) |
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2023
- 2023-12-28 CN CN202311827746.5A patent/CN117531057A/en active Pending
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