CN114452453A - Drainage tube with pressure monitoring and flow velocity adjusting functions - Google Patents

Drainage tube with pressure monitoring and flow velocity adjusting functions Download PDF

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Publication number
CN114452453A
CN114452453A CN202111675009.9A CN202111675009A CN114452453A CN 114452453 A CN114452453 A CN 114452453A CN 202111675009 A CN202111675009 A CN 202111675009A CN 114452453 A CN114452453 A CN 114452453A
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valve
pipe
liquid
tube
groove
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CN202111675009.9A
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CN114452453B (en
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陶陶
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Anhui Provincial Hospital First Affiliated Hospital Of Ustc
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Anhui Provincial Hospital First Affiliated Hospital Of Ustc
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/24Check- or non-return valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/18General characteristics of the apparatus with alarm
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3327Measuring
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • A61M2205/3334Measuring or controlling the flow rate

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The invention discloses a drainage tube with pressure monitoring and flow rate adjusting functions, which comprises a Y-shaped connecting pipe, a drainage tube, a liquid charging tube, a flow guiding tube, a check valve group, a monitoring control device and a flow rate adjusting device, wherein the drainage tube, the liquid charging tube and the flow guiding tube are connected to the end part of the Y-shaped connecting pipe, the check valve group, the monitoring control device and the flow rate adjusting device are arranged on the pipeline, the monitoring control device is used for monitoring the liquid inflow amount and the perfusion pressure of the liquid charging tube and the liquid outflow amount of the drainage tube, and the flow rate adjusting device is used for adjusting the liquid flow rates from the flow guiding tube to the drainage tube and from the liquid charging tube to the flow guiding tube. The invention monitors the liquid inflow, perfusion pressure and liquid outflow in real time through the monitoring control device, processes the monitoring data and sends out an alarm according to the data processing result to remind medical staff to adjust the flow rate through the flow rate adjusting device, and the internal volume of the bladder is kept stable through adjusting the inflow and the outflow, thereby avoiding the problems of bladder perforation, dilution hyponatremia and hypotension caused by overhigh pressure and overlong time.

Description

Drainage tube with pressure monitoring and flow velocity adjusting functions
Technical Field
The invention relates to the technical field of medical instruments, in particular to a drainage tube with pressure monitoring and flow rate adjusting functions.
Background
In order to fill the urinary bladder and display a clean and clear operation visual field, drainage passages including flushing liquid, a Y-shaped drainage tube, an endoscope, a drainage liquid collecting bag and a drainage liquid collecting barrel need to be used in the operation.
Taking cystoscope tumor electrostomy as an example, in the operation process, an operator connects a complete surgical instrument and then enters a urethra through a flushing fluid lubrication shell, a switch is turned on to fill a bladder, the operation is started after the visual field is displayed, along with the blocking of bleeding or tissue fragments, the water flow needs to be frequently switched on and off to enter and flow out, a drainage tube used for the existing cystoscope treatment lacks a flow monitoring module, the uncertainty of the internal capacity of the bladder is caused, the inlet and outlet flow of the drainage tube cannot be adjusted according to the internal volume of the bladder, the mind of the operator is concentrated on the operation per se, the water flow can not flow out, the bladder perfusion pressure is increased, bladder perforation can be caused, or the symptoms such as dilution hyponatremia, hypotension and the like are caused due to overlong time.
Disclosure of Invention
Therefore, the invention provides the drainage tube with the functions of pressure monitoring and flow rate regulation, and the problems that the inlet and outlet flow of the drainage tube cannot be regulated according to the internal volume of the bladder, the perfusion pressure is increased and the bladder is perforated in the prior art are effectively solved.
In order to solve the technical problems, the invention specifically provides the following technical scheme: the utility model provides a drainage tube with pressure monitoring and velocity of flow regulatory function, includes Y shape connecting pipe, honeycomb duct, drainage tube, liquid filling pipe, check valve group, scope, monitor control device and velocity of flow adjusting device, the honeycomb duct is connected one side of Y shape connecting pipe, the drainage tube with the liquid filling pipe sets up the opposite side of Y shape connecting pipe, the check valve group sets up in the Y shape connecting pipe, the check valve group is used for controlling the honeycomb duct arrives the drainage tube the liquid filling pipe arrives the flow direction of honeycomb duct, the scope sets up the tip of honeycomb duct, monitor control device sets up the liquid filling pipe with the tip of drainage tube, just monitor control device is used for monitoring the liquid inflow and the pressure of filling the liquid filling pipe and monitoring the liquid outflow of drainage tube, velocity of flow adjusting device is used for adjusting the honeycomb duct arrives the drainage tube arrives the liquid outflow of drainage tube, A liquid flow rate from the charge tube to the draft tube;
the flow velocity adjusting device comprises a limiting adjusting assembly arranged in the Y-shaped connecting pipe and an installation adjusting assembly arranged on the side edge of the check valve group, the limiting adjusting assembly is used for adjusting the size of a liquid channel in the check valve group so as to adjust the flow velocity of liquid flowing from the flow guide pipe to the drainage pipe and from the liquid charging pipe to the flow guide pipe, and the installation adjusting assembly is used for adjusting the single valve group to a full-open state or an adjusting state.
As a preferable scheme of the present invention, the monitoring and controlling device includes a first water flow monitor disposed at an end of the liquid filling pipe, a second water flow monitor disposed at an end of the drainage pipe, and a data processing and alarming module, the first water flow monitor is configured to monitor a liquid inflow amount and a perfusion pressure of the liquid filling pipe and transmit detection data to the data processing and alarming module, and the second water flow monitor is configured to monitor a liquid outflow amount at an end of the drainage pipe and transmit detection data to the data processing and alarming module.
As a preferred scheme of the invention, a perfusion pressure threshold value and a water flow difference threshold value are stored in the data processing and alarming module, the data processing and alarming module compares the received perfusion pressure data with the perfusion pressure threshold value, and the data processing and alarming module gives an alarm according to the comparison result;
the data processing and alarming module calculates the difference value of the received liquid inflow and liquid outflow to obtain a water flow difference, compares the water flow difference with a water flow difference threshold value, and sends an alarm according to the comparison result.
As a preferable scheme of the present invention, the check valve set includes a groove structure disposed in the Y-shaped connecting pipe, an inflow valve assembly and an outflow valve assembly mounted in the groove structure, the groove structure is used for mounting the inflow valve assembly and the outflow valve assembly, the inflow valve assembly is used for controlling a flow direction from the liquid charging pipe to the liquid guiding pipe, and the outflow valve assembly is used for controlling a flow direction from the liquid guiding pipe to the liquid guiding pipe.
As a preferable aspect of the present invention, the tank structure includes a main tank disposed in the Y-shaped connection pipe, two branch tanks connected to end portions of the main tank, a first valve pipe and a second valve pipe connected to end portions of the Y-shaped connection pipe, and a first mounting groove and a second mounting groove disposed in the Y-shaped connection pipe and the second valve pipe, respectively, the first mounting groove and the second mounting groove being used for mounting the intake valve assembly and the outflow valve assembly, and the first valve pipe and the second valve pipe being connected to the charging pipe and the drainage pipe, respectively;
the main runner, the splitter box, the first mounting groove and the second mounting groove are communicated with each other, and the inner diameter of the first mounting groove and the inner diameter of the second mounting groove are larger than that of the splitter box.
As a preferable scheme of the present invention, the inflow valve assembly includes a first valve slot seat slidably disposed in the first mounting groove, a first trapezoidal valve core disposed at a middle position of a bottom of the first valve slot seat, and a first inclined through hole disposed at a side of the first valve slot seat, a first trapezoidal groove is disposed in the first valve pipe, and the first trapezoidal groove is engaged with the first trapezoidal valve core;
the length of the first mounting groove is greater than the length of the first valve groove seat and the first trapezoid valve core.
As a preferable scheme of the present invention, the outflow valve assembly includes a second valve slot seat slidably disposed in the second mounting groove, a second trapezoidal valve core disposed at a middle position of a bottom of the second valve slot seat, and a second inclined through hole disposed at a side of the second valve slot seat, the end of the Y-shaped connecting pipe is provided with a second stepped groove, and the second stepped groove is engaged with the second trapezoidal valve core;
the length of the second mounting groove is greater than the length of the second valve groove seat and the second trapezoid valve core.
As a preferable aspect of the present invention, the inner diameters of the upper portions of the first and second mounting grooves are smaller than the inner diameter of the lower portion, and the inner diameters of the upper portions of the first and second mounting grooves are the same as the outer diameters of the first and second valve seats.
As a preferable scheme of the present invention, the limit adjusting assembly includes a limit groove disposed on the first valve tube and the Y-shaped connecting tube, a threaded bolt threaded on the side walls of the first valve tube and the Y-shaped connecting tube, and a limit abutting block disposed at an end of the threaded bolt, an upper end of the threaded bolt extends into the limit groove, and the limit abutting block extends into the first mounting groove and the second mounting groove and abuts against upper ends of the first valve seat and the second valve seat;
the threaded bolt is rotated to drive the limiting abutting block to adjust the positions in the first mounting groove and the second mounting groove so as to limit the sliding of the first valve groove seat and the second valve groove seat.
As a preferable scheme of the present invention, the mounting adjustment assembly includes mounting protrusions disposed at an end of the Y-shaped connection pipe and outside the second valve pipe, a mounting ring disposed at an end of the Y-shaped connection pipe and on the first valve pipe, and two layers of clamping arc strips disposed in the mounting ring, and a through hole for the mounting protrusion to pass through is disposed on the single layer of clamping arc strip.
Compared with the prior art, the invention has the following beneficial effects:
the invention monitors the liquid inflow, perfusion pressure and liquid outflow in real time through the monitoring control device, processes the monitoring data and sends out an alarm according to the data processing result to remind medical staff to adjust the flow rate through the flow rate adjusting device, and the internal volume of the bladder is kept stable through adjusting the inflow and the outflow, thereby avoiding the problems of bladder perforation, dilution hyponatremia and hypotension caused by overhigh pressure and overlong time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural diagram of a drainage tube with pressure monitoring and flow rate adjusting functions according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the inlet valve assembly in a fully open position according to an embodiment of the present invention;
FIG. 3 is a schematic view of an embodiment of the present invention illustrating the inlet valve assembly in an adjusted position;
fig. 4 is a schematic structural diagram of an installation adjustment assembly in an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-Y-shaped connecting pipe; 2-a flow guide pipe; 3-a drainage tube; 4-a liquid filling pipe; 5-a check valve group; 6-endoscope; 7-monitoring the control device; 8-a flow rate regulating device;
51-tank structure; 52-an inlet valve assembly; 53-an outflow valve assembly;
71-a first water flow monitor; 72-a second water flow monitor; 73-a data processing and alarm module;
81-limit adjusting component; 82-mounting an adjustment assembly;
511-main runner; 512-splitter box; 513 — a first valve tube; 514-a second valve tube; 515-a first mounting groove; 516-a second mounting groove;
521-a first valve bowl; 522-a first ladder spool; 523-first inclined through hole; 524-first ladder groove;
531-second valve pocket; 532-a second ladder spool; 533-a second inclined through hole; 534-second ladder groove;
811-a spacing groove; 812-a threaded bolt; 813-limit resisting blocks;
821-mounting projections; 822-a mounting ring; 823-clamping the arc strips; 824-perforation.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
As shown in figure 1, the invention provides a drainage tube with pressure monitoring and flow rate adjusting functions, which monitors the inflow, perfusion pressure and outflow of liquid in real time through a monitoring control device 7, processes monitoring data and sends an alarm according to the data processing result to remind medical staff of adjusting the flow rate through a flow rate adjusting device 8, and the inflow and outflow are adjusted to keep the internal volume of the bladder stable, so that the problems of bladder perforation, dilution hyponatremia and hypotension caused by overhigh pressure for too long time are avoided.
The invention comprises a Y-shaped connecting pipe 1, a flow guide pipe 2, a drainage pipe 3, a liquid charging pipe 4, a check valve group 5, an endoscope 6, a monitoring control device 7 and a flow rate adjusting device 8, wherein the flow guide pipe 2 is connected to one side of the Y-shaped connecting pipe 1, the drainage pipe 3 and the liquid charging pipe 4 are arranged on the other side of the Y-shaped connecting pipe 1, the check valve group 5 is arranged in the Y-shaped connecting pipe 1, the check valve group 5 is used for controlling the flow direction from the flow guide pipe 2 to the drainage pipe 3 and from the liquid charging pipe 4 to the flow guide pipe 2, the endoscope 6 is arranged at the end part of the flow guide pipe 2, the monitoring control device 7 is arranged at the end parts of the liquid charging pipe 4 and the drainage pipe 3, the monitoring control device 7 is used for monitoring the liquid inflow and perfusion pressure of the liquid charging pipe 4 and the liquid outflow of the drainage pipe 3, and the flow speed adjusting device 8 is used for adjusting the liquid flow speed from the drainage pipe 2 to the drainage pipe 3 and from the liquid charging pipe 4 to the drainage pipe 2.
In the invention, a liquid charging pipe 4, a Y-shaped connecting pipe 1 and a guide pipe 2 are in the inflow direction, the outer end of the liquid charging pipe 4 is usually arranged on a flushing liquid barrel, the inner end of the guide pipe 2 is arranged in a bladder, the guide pipe 2, the Y-shaped connecting pipe 1 and a drainage pipe 3 are in the outflow direction, the outer end of the drainage pipe 3 is usually arranged on a flushing liquid collecting barrel, the inflow flushing liquid and the outflow flushing liquid are different, the inflow flushing liquid is usually clean, therefore, in the invention, the inflow and the outflow are not carried out simultaneously, or two channels are arranged on the draft tube 2 and are respectively connected with the liquid charging tube 4 and the draft tube 3, the invention can ensure that the inflow and outflow processes in the draft tube 2 are not interfered with each other, and in order to avoid the correctness of the backflow, inflow and outflow directions, the invention adopts the control valve group 5 to control the liquid flow direction between the draft tube 2 and the draft tube 3 and between the draft tube 2 and the liquid charging tube 4.
In order to roughly understand the content of the bladder, the monitoring and control device 7 is provided, the monitoring and control device 7 mainly adopts the following preferred embodiment, the monitoring and control device 7 comprises a first water flow monitor 71 arranged at the end part of the liquid charging tube 4, a second water flow monitor 72 arranged at the end part of the drainage tube 3, and a data processing and alarming module 73, the first water flow monitor 71 is used for monitoring the liquid inflow and the perfusion pressure of the liquid charging tube 4 and transmitting the detection data to the data processing and alarming module 73, and the second water flow monitor 72 is used for monitoring the liquid outflow at the end part of the drainage tube 3 and transmitting the detection data to the data processing and alarming module 73.
In this embodiment, a perfusion pressure threshold and a water flow difference threshold are stored in the data processing and alarming module 73, the data processing and alarming module 73 compares the received perfusion pressure data with the perfusion pressure threshold, the data processing and alarming module 73 gives an alarm according to the comparison result, that is, when the perfusion pressure data is higher than the perfusion pressure threshold, the data processing and alarming module 73 gives an alarm, and the medical staff adjusts the flow rate from the liquid charging tube 4 to the liquid guiding tube 2 or stops the perfusion of the flushing liquid through the flow rate adjusting device 8 according to the alarm.
In this embodiment, only start the procedure of inflowing when filling for the first time, do not start the procedure of outflowing, mainly be in order to prop up the bladder to a certain extent and be convenient for the operation, when the bladder is inside to reach certain capacity and reach certain pressure of pouring, can close the procedure of inflowing, subsequent flush fluid introduction process then need cooperate corresponding procedure of outflowing to go on simultaneously in order to guarantee the stability of the internal volume of bladder simultaneously.
In addition, the data processing and alarm module 73 calculates the difference between the received liquid inflow and liquid outflow to obtain a water inflow difference, the data processing and alarm module 73 compares the water inflow difference with a water inflow difference threshold and gives an alarm according to the comparison result, that is, when the perfusion pressure reaches a certain value and then needs to be performed, the inflow and outflow programs are simultaneously started, at this time, the liquid inflow and the liquid outflow of a single inflow and outflow are calculated to obtain a water inflow difference, when the water inflow difference is lower than the water inflow difference threshold or exceeds the water inflow difference threshold, the flow rate is correspondingly adjusted by the flow rate adjusting device 8, the specific adjusting process is that, in the actual application process, in order to keep the stability of the internal volume of the bladder, the water inflow difference threshold is usually set to 0, when the water inflow difference is lower than the water inflow difference threshold, the liquid inflow is smaller than the liquid outflow, at this time, the inflow flow rate needs to be increased or the outflow flow rate needs to be decreased by the flow rate adjusting device 8, and when the water flow difference is higher than the water flow difference threshold value, it indicates that the liquid inflow is greater than the liquid outflow, at this time, the inflow flow rate needs to be decreased or the outflow flow rate needs to be increased by the flow rate adjusting device 8.
The check valve set 5 of the present invention controls the outflow direction and the inflow direction from the draft tube 2 to the draft tube 3 and from the liquid charging tube 4 to the draft tube 2. the check valve set 5 of the present invention mainly adopts the following preferred embodiments, the check valve set 5 includes a trough body structure 51 disposed in the Y-shaped connecting tube 1, an inflow valve assembly 52 and an outflow valve assembly 53 mounted in the trough body structure 51, the trough body structure 51 is used for mounting the inflow valve assembly 52 and the outflow valve assembly 53, the inflow valve assembly 52 is used for controlling the flow direction from the liquid charging tube 4 to the draft tube 2, and the outflow valve assembly 53 is used for controlling the flow direction from the draft tube 2 to the draft tube 3.
The trough body structure 51 is used for installing the inflow valve assembly 52 and the outflow valve assembly 53 in the present embodiment, the trough body structure 51 comprises a main flow trough 511 arranged in the Y-shaped connecting pipe 1, two branch flow troughs 512 connected to the end of the main flow trough 511, a first valve pipe 513 and a second valve pipe 514 connected to the end of the Y-shaped connecting pipe 1, and a first installation groove 515 and a second installation groove 516 respectively arranged in the Y-shaped connecting pipe 1 and the second valve pipe 514, the first installation groove 515 and the second installation groove 516 are used for installing the inflow valve assembly 52 and the outflow valve assembly 53, and the first valve pipe 513 and the second valve pipe 514 are respectively connected with the charging pipe 4 and the drainage pipe 3.
According to the above description, it is possible to realize that the inflow and outflow processes in the draft tube 2 are not interfered with each other by providing two passages in the draft tube 2 to be connected to the charge tube 4 and the discharge tube 3, respectively, that is, the main flow channel 51 is provided to be partitioned, and the partitioned two parts are communicated with the two branch channels 512, respectively.
In this embodiment, the main flow channel 511, the branch flow channel 512, the first mounting groove 515, and the second mounting groove 516 are all communicated with each other, and in order to facilitate the mounting of the inflow valve assembly 52 and the outflow valve assembly 53, the inner diameters of the first mounting groove 515 and the second mounting groove 516 are larger than the inner diameter of the branch flow channel 512.
The inlet valve assembly 52 of the present invention mainly adopts the following preferred embodiments, the inlet valve assembly 52 includes a first valve slot seat 521 slidably disposed in a first installation groove 515, a first trapezoid valve core 522 disposed at the middle position of the bottom of the first valve slot seat 521, and a first inclined through hole 523 disposed at the side of the first valve slot seat 521, a first step groove 524 is disposed in the first valve pipe 513, the first step groove 524 is engaged with the first trapezoid valve core 522, and the length of the first installation groove 515 is greater than the entire length of the first valve slot seat 521 and the first trapezoid valve core 522, so that the first valve slot seat 521 can slide in the first installation groove 515.
When the flushing liquid flows from the liquid charging pipe 4 and the Y-shaped connecting pipe 1 to the first stepped groove 524, under the impact of the flushing liquid, the first stepped valve core 522 slides upwards into the first installation groove 515, because the first stepped valve core 522 is completely engaged with the first stepped groove 524 in the initial state, the first stepped valve core 522 and the first stepped groove 524 in the closed state are dispersed under the impact force of the flushing liquid, at this time, the flushing liquid flows into the liquid guiding pipe 2 through the first stepped groove 524, the first installation groove 515 and the first inclined through hole 523, and when the flushing liquid reversely enters the liquid charging pipe 4 from the liquid guiding pipe 2, the flushing liquid is blocked by the first stepped valve core 522 and cannot directly flow into the liquid charging pipe 4, so that the unidirectional flow from the liquid charging pipe 4 to the liquid guiding pipe 2 in the embodiment is realized.
The outlet valve assembly 53 of the present invention is substantially the same in design as the inlet valve assembly 52, and mainly adopts the following preferred embodiment, the outlet valve assembly 53 includes a second valve slot seat 531 slidably disposed in the second mounting groove 516, a second trapezoidal valve spool 532 disposed at the middle position of the bottom of the second valve slot seat 531, and a second inclined through hole 533 disposed at the side of the second valve slot seat 531, a second stepped groove 534 is disposed at the end of the Y-shaped connection pipe 1, and the second stepped groove 534 is engaged with the second trapezoidal valve spool 532, so that the second valve slot seat 531 can slide in the second mounting groove 516, and the length of the second mounting groove 516 is greater than the length of the second valve slot seat 531 and the second trapezoidal valve spool 532 as a whole.
When the flushing liquid flows from the main flow groove 511 and the diversion groove 512 to the second installation groove 515, the second trapezoidal valve spool 532 slides upwards in the second installation groove 515 under the impact of the flushing liquid, because the second trapezoidal valve spool 532 is completely engaged with the second stepped groove 534 in the initial state, the second trapezoidal valve spool 532 and the second stepped groove 534 in the closed state are dispersed under the impact force of the flushing liquid, at this time, the flushing liquid flows into the drainage tube 3 through the second stepped groove 534, the second installation groove 515 and the second inclined through hole 533, and the flushing liquid is blocked by the second trapezoidal valve spool 532 and cannot directly flow into the drainage tube 2 in the process of reversely entering the drainage tube 2 from the drainage tube 3, so that the unidirectional flow from the drainage tube 2 to the drainage tube 3 in the embodiment is realized.
The first and second inclined through holes 523 and 533 are provided in this embodiment to allow the rinse solution to flow therethrough, so that the rinse solution does not flow through the first and second mounting grooves 515 and 516, the inner diameters of the upper portions of the first and second mounting grooves 515 and 516 are smaller than the inner diameters of the lower portions thereof, and further, the inner diameters of the upper portions of the first and second mounting grooves 515 and 516 are the same as the outer diameters of the first and second valve seats 521 and 531 so that the first and second valve seats 521 and 531 can slide in parallel.
The invention mainly adopts a flow rate adjusting device 8 to adjust the flow rate at the position of a check valve group 5, the flow rate adjusting device 8 mainly adopts the following preferred embodiment, the flow rate adjusting device 8 comprises a limiting adjusting component 81 arranged in a Y-shaped connecting pipe 1 and an installation adjusting component 82 arranged at the side edge of the check valve group 5, the limiting adjusting component 81 is used for adjusting the size of a liquid channel in the check valve group 5 so as to adjust the liquid flow rate from a guide pipe 2 to a drainage pipe 3 and from a liquid charging pipe 4 to the guide pipe 2, and the installation adjusting component 82 is used for adjusting the single valve group 5 to a full-through state or an adjusting state.
In the practice of the present invention, the flow rates of the inlet valve assembly 52 and the outlet valve assembly 53 are substantially the same, the inlet valve assembly 52 and the outlet valve assembly 53 are initially set to the full-on state, as shown in fig. 2, the full-open state in this embodiment mainly means that the bottom of the first trapezoid spool 522 is above the first trapezoid groove 524 in the initial state, and at this time, the inflow and outflow operations can be performed through the inflow valve assembly 52 and the outflow valve assembly 53 without the impact of the flushing liquid, and conversely, the inflow valve assembly 52 and the outflow valve assembly 53 in the full-open state can also perform the function of stopping the backflow, as shown in fig. 3, the first trapezoidal valve core 522 is adjusted to be located at the bottom of the first trapezoidal groove 524, and the flow rate of the flushing liquid can be adjusted by adjusting the position of the first trapezoidal valve core 522 in the first trapezoidal groove 524 to change the flow area of the flushing liquid passing through the first trapezoidal groove 524.
The position of the first trapezoidal valve core 522 in the first trapezoidal groove 524 when flushing liquid passes through is changed mainly through the limiting adjusting assembly 81, the limiting adjusting assembly 81 mainly adopts the following preferred embodiment, the limiting adjusting assembly 81 comprises a limiting groove 811 arranged on the first valve pipe 513 and the Y-shaped connecting pipe 1, a threaded bolt 812 arranged on the side walls of the first valve pipe 513 and the Y-shaped connecting pipe 1 in a threaded manner, and a limiting abutting block 813 arranged at the end part of the threaded bolt 812, the upper end of the threaded bolt 812 extends into the limiting groove 811, and the limiting abutting block 813 extends into the first installation groove 515 and the second installation groove 516 and abuts against the upper ends of the first valve groove seat 521 and the second valve groove seat 531.
The adjusting method of this embodiment is that the threaded bolt 812 is rotated to drive the limiting and abutting block 813 to adjust the positions in the first installation groove 515 and the second installation groove 516 so as to limit the sliding of the first valve seat 521 and the second valve seat 531, that is, after the position of the limiting and abutting block 81 is adjusted, the first valve seat 521 slides up to the position of the limiting and abutting block 81 when the flushing liquid passes through, so that the positions of the first valve seat 521 and the second valve seat 531 in the first ladder groove 524 and the second ladder groove 534 can be adjusted by manually rotating the threaded bolt 812.
In addition, the single valve group 5 is adjusted to the full-open state or the adjustment state through the installation adjustment assembly 82, the limit adjustment assembly 81 can be adjusted only in the adjustment state, the installation adjustment assembly 82 mainly adopts the following preferred embodiment, as shown in fig. 4, the installation adjustment assembly 82 includes an installation protrusion 821 arranged at the end of the Y-shaped connecting pipe 1 and outside the second valve pipe 514, an installation ring 822 arranged at the end of the Y-shaped connecting pipe 1 and outside the first valve pipe 513, and two layers of clamping arc strips 823 arranged in the installation ring 822, and a through hole 824 for the installation protrusion 821 to pass through is arranged on the single layer of clamping arc strips 823.
In this embodiment, the mounting positions of the first valve pipe 513 and the second valve pipe 514 can be changed by changing the clamping position of the mounting protrusion 821, when in an adjustment state, the mounting protrusion 821 is clamped in the innermost clamping arc strip 823, at this time, the distance between the end portions of the first valve pipe 513 and the Y-shaped connection pipe 1 and the distance between the end portions of the second valve pipe 514 and the Y-shaped connection pipe 1 are shortest, and at this time, the bottom of the first trapezoidal valve core 522 is in the first stepped groove 524, at this time, the flow rate can be adjusted by the limit adjustment assembly 81, when in a full-open state, the mounting protrusion 821 is clamped between two layers of clamping arc strips, and at this time, the bottom of the first trapezoidal valve core 522 is above the first stepped groove 524.
In summary, the main implementation method of the present invention is that the inflow procedure is started when the perfusion is performed for the first time, the data processing and alarming module 73 gives an alarm when a certain amount of flushing liquid is perfused and a certain perfusion pressure is reached, the medical staff closes the inflow procedure according to the alarm, then the inflow procedure and the outflow procedure are simultaneously started when the perfusion is performed, the inflow amount and the outflow amount of the liquid of the drainage tube 3 and the liquid filling tube 4 are monitored by the first water flow monitor 71 and the second water flow monitor 72, the data processing and alarming module 73 processes the received inflow amount and the outflow amount of the liquid and sends out different alarming signals according to the processing result, an alarming signal of "the inflow amount of the liquid is small" is sent out corresponding to the inflow amount of the liquid is smaller than the outflow amount of the liquid, the medical staff rotates the threaded bolt 812 according to the signal to raise the height of the bottom surface of the second ladder valve core 522 in the second ladder groove 534, so as to raise the inflow flow rate until the data processing and alarming module 73 does not send out the alarming signal any more, the data processing and alarm module 73 sends out an alarm signal of 'small liquid outflow' corresponding to the liquid inflow greater than the liquid outflow, and medical staff rotates the threaded bolt 812 according to the signal to raise the height of the bottom surface of the first trapezoidal valve core 522 in the first stepped groove 524, so as to raise the outflow flow rate until the data processing and alarm module 73 does not send out the alarm signal any more; in the case where the data processing and alarm module 73 does not issue an alarm, the inflow and outflow procedures are automatically closed after a period of time.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims (10)

1. The utility model provides a drainage tube with pressure monitoring and velocity of flow regulatory function, its characterized in that, includes Y shape connecting pipe (1), honeycomb duct (2), drainage tube (3), liquid charge pipe (4), check valve group (5), scope (6), monitor control device (7) and velocity of flow adjusting device (8), honeycomb duct (2) are connected one side of Y shape connecting pipe (1), drainage tube (3) with liquid charge pipe (4) set up the opposite side of Y shape connecting pipe (1), check valve group (5) set up in Y shape connecting pipe (1), check valve group (5) are used for control honeycomb duct (2) extremely drainage tube (3), liquid charge pipe (4) extremely the flow direction of honeycomb duct (2), scope (6) set up the tip of honeycomb duct (2), monitor control device (7) set up liquid charge pipe (4) with the tip of drainage tube (3) The monitoring and controlling device (7) is used for monitoring the liquid inflow and the perfusion pressure of the liquid charging pipe (4) and monitoring the liquid outflow of the drainage pipe (3), and the flow speed adjusting device (8) is used for adjusting the liquid flow speed of the drainage pipe (3) from the drainage pipe (2) and the liquid charging pipe (4) from the drainage pipe (2);
flow rate adjusting device (8) are including setting up spacing adjusting part (81) in Y shape connecting pipe (1) and installing installation adjusting part (82) of check valve group (5) side, spacing adjusting part (81) are used for adjusting the size of the liquid passage in check valve group (5) is in order to adjust honeycomb duct (2) extremely drainage tube (3), liquid charging pipe (4) extremely the liquid velocity of flow of honeycomb duct (2), installation adjusting part (82) are used for adjusting single valves (5) are to the state of leading to entirely or the regulation state.
2. The drainage tube with pressure monitoring and flow rate adjusting functions according to claim 1, wherein the monitoring and controlling device (7) comprises a first water flow monitor (71) disposed at the end of the liquid charging tube (4), a second water flow monitor (72) disposed at the end of the drainage tube (3), and a data processing and alarming module (73), the first water flow monitor (71) is used for monitoring the liquid inflow and perfusion pressure of the liquid charging tube (4) and transmitting the detection data to the data processing and alarming module (73), and the second water flow monitor (72) is used for monitoring the liquid outflow at the end of the drainage tube (3) and transmitting the detection data to the data processing and alarming module (73).
3. The drainage tube with pressure monitoring and flow rate regulating functions according to claim 2, wherein a perfusion pressure threshold value and a water flow rate difference threshold value are stored in the data processing and alarming module (73), the data processing and alarming module (73) compares the received perfusion pressure data with the perfusion pressure threshold value, and the data processing and alarming module (73) gives an alarm according to the comparison result;
the data processing and alarming module (73) calculates a difference value of the received liquid inflow and liquid outflow to obtain a water flow difference, the data processing and alarming module (73) compares the water flow difference with the water flow difference threshold value, and an alarm is given according to a comparison result.
4. A drainage tube with pressure monitoring and flow rate regulating functions according to claim 3, wherein the check valve set (5) comprises a groove structure (51) arranged in the Y-shaped connecting tube (1), an inflow valve assembly (52) and an outflow valve assembly (53) arranged in the groove structure (51), the groove structure (51) is used for installing the inflow valve assembly (52) and the outflow valve assembly (53), the inflow valve assembly (52) is used for controlling the flow direction of the liquid charging tube (4) to the drainage tube (2), and the outflow valve assembly (53) is used for controlling the flow direction of the drainage tube (2) to the drainage tube (3).
5. A drainage tube with pressure monitoring and flow rate regulation functions according to claim 4, characterized in that the tank body structure (51) comprises a main flow tank (511) arranged in the Y-shaped connecting pipe (1), two branch flow tanks (512) connected to the end part of the main flow tank (511), a first valve pipe (513) and a second valve pipe (514) connected to the end part of the Y-shaped connecting pipe (1), and a first mounting groove (515) and a second mounting groove (516) respectively arranged in the Y-shaped connecting pipe (1) and the second valve pipe (514), the first and second mounting grooves (515, 516) are used for mounting the inlet valve assembly (52) and the outlet valve assembly (53), the first valve pipe (513) and the second valve pipe (514) are respectively connected with the liquid charging pipe (4) and the drainage pipe (3);
the main flow groove (511), the diversion groove (512), the first mounting groove (515) and the second mounting groove (516) are communicated with each other, and the inner diameters of the first mounting groove (515) and the second mounting groove (516) are larger than the inner diameter of the diversion groove (512).
6. The drain pipe with pressure monitoring and flow rate regulating functions according to claim 5, wherein the inflow valve assembly (52) comprises a first valve slot seat (521) slidably arranged in the first mounting groove (515), a first trapezoidal valve core (522) arranged at the middle position of the bottom of the first valve slot seat (521), and a first inclined through hole (523) arranged at the side of the first valve slot seat (521), a first stepped groove (524) is arranged in the first valve pipe (513), and the first stepped groove (524) is matched with the first trapezoidal valve core (522);
the length of the first installation groove (515) is greater than the length of the first valve seat (521) and the first trapezoid valve core (522) as a whole.
7. The drainage tube with pressure monitoring and flow rate regulating functions of claim 6, wherein the outflow valve assembly (53) comprises a second valve slot seat (531) slidably disposed in the second mounting groove (516), a second trapezoidal valve core (532) disposed at the middle position of the bottom of the second valve slot seat (531), and a second inclined through hole (533) disposed at the side of the second valve slot seat (531), the end of the Y-shaped connecting tube (1) is provided with a second trapezoidal groove (534), and the second trapezoidal groove (534) is engaged with the second trapezoidal valve core (532);
the length of the second mounting groove (516) is greater than the length of the second valve seat (531) and the second trapezoidal valve core (532) as a whole.
8. The draft tube having pressure monitoring and flow rate adjusting functions according to claim 7, wherein an upper inner diameter of said first mounting groove (515) and said second mounting groove (516) is smaller than a lower inner diameter, and an upper inner diameter of said first mounting groove (515) and said second mounting groove (516) is the same as an outer diameter of said first valve housing (521) and said second valve housing (531).
9. The drainage tube with pressure monitoring and flow rate regulating functions according to claim 8, wherein the limit adjusting assembly (81) comprises a limit groove (811) arranged on the first valve tube (513) and the Y-shaped connecting tube (1), a threaded bolt (812) threaded on the side walls of the first valve tube (513) and the Y-shaped connecting tube (1), and a limit abutting block (813) arranged at the end part of the threaded bolt (812), the upper end of the threaded bolt (812) extends into the limit groove (811), and the limit abutting block (813) extends into the first mounting groove (515) and the second mounting groove (516) and abuts against the upper ends of the first valve groove seat (521) and the second valve groove seat (531);
the threaded bolt (812) is rotated to drive the limiting abutting block (813) to adjust the positions in the first installation groove (515) and the second installation groove (516) so as to limit the sliding of the first valve groove seat (521) and the second valve groove seat (531).
10. The drainage tube with pressure monitoring and flow rate regulating functions according to claim 9, wherein the installation adjusting assembly (82) comprises an installation protrusion (821) arranged at the end of the Y-shaped connecting tube (1) and outside the second valve tube (514), an installation ring (822) arranged at the end of the Y-shaped connecting tube (1) and on the first valve tube (513), and two layers of clamping arc strips (823) arranged in the installation ring (822), and a through hole (824) for the installation protrusion (821) to pass through is arranged on the clamping arc strip (823) in a single layer.
CN202111675009.9A 2021-12-31 2021-12-31 Drainage tube with pressure monitoring and flow speed adjusting functions Active CN114452453B (en)

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