CN116236635A - Clinical medicine is with peritoneal dialysis liquid exchange device and liquid auxiliary system that trades thereof - Google Patents

Clinical medicine is with peritoneal dialysis liquid exchange device and liquid auxiliary system that trades thereof Download PDF

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CN116236635A
CN116236635A CN202310451278.XA CN202310451278A CN116236635A CN 116236635 A CN116236635 A CN 116236635A CN 202310451278 A CN202310451278 A CN 202310451278A CN 116236635 A CN116236635 A CN 116236635A
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liquid
patient
cavity
pipe
waste liquid
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刘冠辰
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Jiamusi University
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Jiamusi University
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    • 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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
    • A61M1/282—Operational modes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • 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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
    • A61M1/287—Dialysates therefor
    • 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
    • A61M2205/18—General characteristics of the apparatus with alarm
    • 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
    • A61M2205/3334—Measuring or controlling the flow rate
    • 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
    • A61M2205/3368—Temperature
    • 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
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Emergency Medicine (AREA)
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  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • External Artificial Organs (AREA)

Abstract

The invention relates to the technical field of peritoneal dialysis solution exchange, and in particular discloses a peritoneal dialysis solution exchange device for clinical medicine, which comprises a solution exchange box, wherein a dialysis bag placing cavity, a heating cavity, a mounting cavity and a waste liquid bag placing cavity are arranged in the solution exchange box; the heating component is arranged in the heating cavity and is used for heating the dialysate flowing through the heating cavity; the pipe storage box is connected in the installation cavity in a sliding manner and is used for storing and sterilizing the liquid exchange pipe; the liquid delivery assembly is arranged in the mounting cavity and is used for delivering the dialyzate into a patient through the liquid exchange tube; according to the invention, the dialysate in the dialysis bag is conveyed into a patient through the liquid exchange tube at a proper speed by the liquid conveying component, the dialysate flows through the heating cavity in the process of conveying the dialysate into the patient, and the heating components in the synchronous heating cavities can heat and heat the flowing dialysate, so that the condition that discomfort is not caused to the patient due to too high speed or low temperature when the dialysate is conveyed into the patient is ensured.

Description

Clinical medicine is with peritoneal dialysis liquid exchange device and liquid auxiliary system that trades thereof
Technical Field
The invention relates to the technical field of peritoneal dialysis solution exchange, in particular to a peritoneal dialysis solution exchange device and a solution exchange auxiliary system for clinical medicine.
Background
Peritoneal dialysis is to utilize the characteristic that the peritoneal membrane is used as a semi-permeable membrane, and the prepared dialysate is regularly and regularly poured into the peritoneal cavity of a patient through a catheter by the action of gravity, and the mass at the high concentration side moves to the low concentration side (dispersion effect) due to the concentration gradient difference of solutes at the two sides of the peritoneal membrane; the water moves from the hypotonic side to the hypertonic side (osmosis), and is continuously replaced by the peritoneal dialysis solution, so that the purposes of removing metabolic products and toxic substances in the body and correcting water and electrolyte balance disorder are achieved, and the device is widely used for patients with renal dysfunction.
The existing peritoneal dialysis fluid exchange device is a device for peritoneal dialysis treatment, and comprises a peritoneal dialysis fluid bag, a catheter, a connector and the like, wherein dialysis fluid is filled in the peritoneal cavity, the peritoneal dialysis fluid bag is connected into the peritoneal cavity through the catheter and the connector, waste and redundant liquid in the peritoneal cavity are discharged through the action of gravity, and new dialysis fluid is poured into the peritoneal cavity, so that the purposes of continuous and stable treatment and treatment effects are achieved.
The liquid feeding speed of the peritoneal dialysis liquid changing device in the technology cannot be intelligently controlled for patients in different body health states in the liquid changing process, discomfort and even adverse reactions, such as abdominal pain, hypotension, nausea, vomiting and other related symptoms, can be caused for some patients in the dialysis process, and the lower temperature of the dialysis liquid in the dialysis process can also cause the discomfort of the patients, such as abdominal pain, muscle spasm, hypotension and other related symptoms.
Disclosure of Invention
The invention aims to provide an abdominal liquid-permeable liquid-changing device for clinical medicine and a liquid-changing auxiliary system thereof, which solve the following technical problems:
how to intelligently control the speed of the dialysate to be fed into a patient and synchronously heat the dialysate to a proper temperature.
The aim of the invention can be achieved by the following technical scheme:
an abdomen penetrating fluid changing device for clinical medicine comprises a fluid changing box, wherein a dialysis bag placing cavity, a heating cavity, an installation cavity and a waste fluid bag placing cavity are arranged in the fluid changing box;
the heating component is arranged in the heating cavity and is used for heating the dialysate flowing through the heating cavity;
the pipe storage box is connected in the mounting cavity in a sliding manner and is used for storing and sterilizing the liquid exchange pipe;
the liquid delivery assembly is arranged in the mounting cavity and is used for delivering the dialyzate into a patient through the liquid exchange tube;
the waste liquid bag placing box is connected in the waste liquid bag placing cavity in a sliding mode and is used for temporarily placing the waste liquid bag.
In an embodiment, the heating assembly includes a heat exchange tube and a heating rod, both of which are fixedly connected in the heating cavity.
Further, the liquid delivery assembly comprises a liquid pump, a liquid suction pipe is communicated with the input end of the liquid pump, one end of the liquid suction pipe, far away from the liquid pump, extends into the dialysis bag placing cavity, an infusion tube is communicated with the output end of the liquid pump, one end, far away from the liquid pump, of the infusion tube extends into the heat exchange cavity to be communicated with one end of the heat exchange tube, and a one-way valve is arranged in the infusion tube.
Further, the liquid exchange tube comprises a liquid inlet tube and a waste liquid tube, flow sensors are arranged in the liquid inlet tube and the waste liquid tube, and one end of the liquid inlet tube extends into the heating cavity and is communicated with the other end of the heat exchange tube;
the inner wall of the mounting cavity is fixedly connected with a control cylinder for controlling the opening and closing of a waste liquid pipe, one end of the waste liquid pipe is communicated with the control cylinder, the other end of the waste liquid pipe is fixedly connected with a patient connecting port, a temperature sensor is arranged in the patient connecting port, and the other end of the liquid inlet pipe is communicated with the waste liquid pipe in the direction close to the patient connecting port;
the control section of thick bamboo is last to be linked together has waste liquid communicating pipe, waste liquid communicating pipe keeps away from control section of thick bamboo one end and extends to waste liquid bag and place the intracavity intercommunication and have waste liquid bag connecting pipe, waste liquid bag connecting pipe is located waste liquid bag and places the box.
Further, sliding connection has the dog in the control section of thick bamboo, fixedly connected with extension spring on the dog, extension spring keeps away from dog a bit fixed connection on the control section of thick bamboo inner wall, the lower liquid hole that is linked together with the control section of thick bamboo is seted up to the heating chamber bottom, the heating chamber top intercommunication has the liquid feeding pipe, threaded connection has sealed lid on the liquid feeding pipe.
The utility model provides an auxiliary system is traded liquid with peritoneal dialysis to clinical medicine, is applied to a clinical medicine and trades liquid device with peritoneal dialysis, still includes:
the analysis control module is used for performing analysis control on the heating rod, the electromagnetic valve and the liquid pump;
the battery module is used for supplying power to the heating rod, the electromagnetic valve, the liquid pump, the temperature sensor and the flow sensor;
the warning module is used for sending warning when the device fails;
and the patient state monitoring module is used for monitoring the physical state of the patient.
Further, the working process of the analysis control module is as follows:
s1, collecting flow velocity information of waste liquid in a waste liquid pipe, judging whether the waste liquid is discharged or not, and analyzing and recording the amount of the discharged waste liquid;
s2, after the waste liquid is completely discharged, acquiring relevant state information of the body of the patient in real time through a patient state monitoring module, obtaining the speed of the input dialysate suitable for the patient, and controlling a liquid pump and a heating rod to work;
s3, monitoring the flow rate of the dialysate in the liquid inlet pipe and the temperature of the dialysate flowing through the patient connecting port, if data which are inconsistent with theoretical data are monitored, indicating that the device is out of order, timely sending out warning, and controlling the liquid pump and the heating rod to stop working.
Further, in the analysis process of obtaining the input dialysate speed in step S2, it is:
by the formula
Figure BDA0004197493430000041
Calculating the infusion speed V suitable for the patient a ；
Wherein alpha is i (t) is the real-time value of the sign information of the ith patient, alpha oi Standard reference value sigma for the i-th patient sign information i The weight coefficient of the sign information of the ith patient is f, and the f is the optimal infusion speed corresponding function of the patient.
Further, the output power P of the liquid pump a ＝V a *θ；
Wherein θ is a power coefficient corresponding to the dialysate flow rate;
heating power P of heating rod r ＝|T a -T o |*V a *θ；
Wherein the T is a T is the temperature before the dialysate is not heated o For proper patient temperature, θ is the endothermic power coefficient of the dialysate.
Further, the specific process of warning in step S3 is as follows:
input speed V to suitable patient a Set proper temperature T of human body o And the actual input speed V c Actual input dialysate temperature T c And (3) performing comparison:
if V c ＝V a And T is c ＝T o The normal operation of the device is illustrated;
otherwise, the device is proved to be in fault, the analysis control module controls the liquid pump and the heating rod to stop working, and the warning module sends warning;
wherein the V is c For the data acquired by the flow sensor in the liquid inlet pipe, T c The acquired data is collected for a temperature sensor within the patient connection port.
The invention has the beneficial effects that:
(1) According to the invention, the dialysate in the dialysis bag is conveyed into a patient through the liquid exchange tube at a proper speed by the liquid conveying component, the dialysate flows through the heating cavity in the process of conveying the dialysate into the patient, and the heating components in the synchronous heating cavities can heat and heat the flowing dialysate, so that the condition that discomfort is not caused to the patient due to too high speed or low temperature when the dialysate is conveyed into the patient is ensured.
(2) When the liquid pump and the heating rod work, part of the dialysate is conveyed into the liquid inlet pipe by the liquid pump at the beginning stage, and after entering the patient connecting port, the dialysate flows into the waste liquid bag through the waste liquid pipe, the control cylinder, the waste liquid communicating pipe and the waste liquid bag connecting pipe, so that the waste liquid remained in the patient connecting port and a small part of the waste liquid entering the liquid inlet pipe in the waste liquid discharging process can be discharged and cleaned, and the subsequent conveyance of the dialysate into the patient can be ensured not to be polluted.
(3) According to the invention, the first sterilizing lamp, the second sterilizing lamp and the third sterilizing lamp are started to emit ultraviolet rays to continuously sterilize the dialysis bag placing cavity, the pipe storage box and the waste liquid bag placing box, the electromagnetic valve is controlled to be opened, sterilizing liquid can flow into the dialysis bag placing cavity, the pipe storage box is further sterilized through the sterilizing liquid, the liquid pump pumps and conveys the sterilizing liquid into the pipe storage box, the liquid inlet pipe, the waste liquid pipe and the control cylinder which are contained in the pipe storage box are further sterilized, and when the liquid level of the sterilizing liquid exceeds the communicating ports of the waste liquid communicating pipe and the waste liquid pipe, the sterilizing liquid in the pipe storage box can flow into the waste liquid bag placing box, and the waste liquid bag placing box is further sterilized.
(4) According to the invention, the infusion speed which is most suitable for the corresponding patient can be obtained according to the acquired physical sign information of the patient in real time, and the corresponding power is output by controlling the liquid pump and the heating rod, so that the temperature and the input speed of the dialysate which is input into the patient can be intelligently controlled, and the problem of discomfort of the patient caused by speed or temperature discomfort in the use process of the conventional peritoneal dialysis liquid exchange device can be avoided.
(5) The invention can collect the flow rate in the liquid inlet pipe and the temperature in the patient connecting port in real time, and compared with the proper input speed of the patient dialysate and the proper set temperature of the human body, the working state of the device is monitored in real time, and when the device fails, the input of the dialysate is effectively controlled to stop in time, so that the damage to the patient is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an peritoneal dialysis solution exchange device for clinical medicine according to the present invention;
fig. 2 is a schematic diagram of a structure of an peritoneal dialysis solution exchange device for clinical medicine according to the present invention;
fig. 3 is a schematic diagram III of a clinical medical peritoneal dialysis solution exchange device according to the present invention;
FIG. 4 is an enlarged view of a partial structure of the area A in FIG. 3 according to the present invention;
fig. 5 is a schematic structural diagram of an peritoneal dialysis solution exchange device for clinical medicine according to the present invention;
FIG. 6 is a schematic view of a control cylinder part of an peritoneal dialysis solution exchange device for clinical medicine according to the present invention;
FIG. 7 is a schematic view of the structure of a patient connection port portion of an peritoneal dialysis solution exchange device according to the present invention;
fig. 8 is a flowchart of the steps of the analysis control module of the auxiliary system for the peritoneal dialysis solution for clinical medicine.
Reference numerals: 1. a liquid changing box; 11. a mounting cavity; 12. a dialysis bag placement cavity; 121. a first sterilizing lamp; 123. a through hole; 13. a waste liquid bag placing cavity; 14. a heating chamber; 141. sealing cover; 143. a heat exchange tube; 144. a heating rod; 145. a liquid discharging hole; 2. a pipe storage box; 21. a liquid inlet pipe; 22. a waste liquid pipe; 221. a patient connection port; 23. a waste liquid communicating tube; 24. a control cylinder; 241. a stop block; 242. a tension spring; 25. a second sterilizing lamp; 3. a waste liquid bag placing box; 31. a waste liquid bag connecting pipe; 32. a third sterilizing lamp; 4. a cover plate; 5. a liquid pump; 51. a pipette; 52. an infusion tube; 6. an analysis control module; 7. a battery module; 8. and a warning module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, in one embodiment, an abdominal liquid-permeable liquid-changing device for clinical medicine is provided, which comprises a liquid-changing box 1, wherein a dialysis bag placing cavity 12, a heating cavity 14, a mounting cavity 11 and a waste liquid bag placing cavity 13 are arranged in the liquid-changing box 1;
a heating assembly disposed within the heating chamber 14 for heating the dialysate flowing through the heating chamber 14;
the pipe storage box 2 is connected in the installation cavity 11 in a sliding manner and is used for storing and sterilizing the liquid exchange pipe;
the liquid delivery component is arranged in the installation cavity 11 and is used for delivering the dialyzate into a patient through the liquid exchange tube;
the waste liquid bag placing box 3 is connected in the waste liquid bag placing cavity 13 in a sliding mode and is used for temporarily placing the waste liquid bag.
Through above-mentioned technical scheme, the dialysis bag that this device in-process of using can place the dialysis in-process with the dialysis bag and place the chamber 12 in to be linked together with the liquid delivery subassembly, place the waste liquid bag in waste liquid bag place the chamber 13 and with trade liquid tubular product intercommunication, then derive the expense in the patient's body to the waste liquid bag through trading liquid tubular product in, the rethread liquid delivery subassembly carries the patient in with the dialysis liquid in the dialysis bag through trading liquid tubular product at suitable speed, the dialysis liquid can flow through heating chamber 14 in the in-process that carries to the patient, the heating element in the synchronous heating chamber 14 can heat the dialysis liquid that flows through to guarantee that the dialysis liquid can not cause the discomfort to the patient because of speed is too fast or low temperature when being carried to the patient.
As an embodiment of the present invention, referring to fig. 3 to 7, the heating assembly includes a heat exchange tube 143 and a heating rod 144, and the heat exchange tube 143 and the heating rod 144 are fixedly connected in the heating chamber 14.
Through the above technical scheme, the device needs to be filled with a proper amount of disinfectant in the heating cavity 14 in the use process, the disinfectant can be heated in the working process of the heating rod 144, and the heat exchange tube 143 positioned in the heating cavity 14 after the disinfectant is heated, so that the dialysate flowing through the heat exchange tube 143 can be heated.
The liquid delivery assembly comprises a liquid pump 5, a liquid suction pipe 51 is communicated with the input end of the liquid pump 5, one end, far away from the liquid pump 5, of the liquid suction pipe 51 extends into the dialysis bag placement cavity 12, an infusion tube 52 is communicated with the output end of the liquid pump 5, one end, far away from the liquid pump 5, of the infusion tube 52 extends into the heat exchange cavity heating cavity 14 and is communicated with one end of a heat exchange tube 143, and a one-way valve is arranged in the infusion tube 52.
The liquid exchange tube comprises a liquid inlet tube 21 and a waste liquid tube 22, flow sensors are arranged in the liquid inlet tube 21 and the waste liquid tube 22, and one end of the liquid inlet tube 21 extends into the heating cavity 14 and is communicated with the other end of the heat exchange tube 143;
a control cylinder 24 is fixedly connected to the inner wall of the installation cavity 11 and used for controlling the opening and closing of the waste liquid pipe 22, one end of the waste liquid pipe 22 is communicated with the control cylinder 24, the other end of the waste liquid pipe 22 is fixedly connected with a patient connecting port 221, a temperature sensor is installed in the patient connecting port 221, and the other end of the liquid inlet pipe 21 is communicated with the waste liquid pipe 22 in the direction close to the patient connecting port 221;
the control cylinder 24 is communicated with a waste liquid communicating pipe 23, one end of the waste liquid communicating pipe 23 far away from the control cylinder 24 extends into the waste liquid bag placing cavity 13, and is communicated with a waste liquid bag connecting pipe 31, and the waste liquid bag connecting pipe 31 is positioned in the waste liquid bag placing box 3.
Through the technical proposal, during the use process of the device, a proper amount of disinfectant is added into the heating cavity 14, then the device is placed at a position lower than the abdomen of a patient, a dialysis bag can be placed into the dialysis bag placement cavity 12, an output pipe of the dialysis bag is communicated with one end of a liquid suction pipe 51 positioned in the dialysis bag placement cavity 12, the cover plate 4 is closed, a waste liquid bag is placed into the waste liquid bag placement box 3, an input end of the waste liquid bag is communicated with a waste liquid bag connecting pipe 31 positioned in the waste liquid bag placement cavity 13, the waste liquid bag placement box 3 is slidingly pushed into the waste liquid bag placement cavity 13, then the pipe storage box 2 is pulled out, the patient connecting port 221 is connected with a dialysis liquid connecting pipe reserved on the patient, and at the moment, waste liquid in the patient flows into the waste liquid bag through the patient connecting port 221, the waste liquid pipe 22, the control cylinder 24, the waste liquid connecting pipe 23 and the waste liquid bag connecting pipe 31 under the action of dead weight, when the waste liquid is completely discharged, the liquid pump 5 and the heating rod 144 are started, the heating rod 144 can heat the sterilizing liquid in the heating cavity 14 to the temperature required by heating the dialyzing liquid, meanwhile, the liquid pump 5 can pump out the dialyzing liquid in the dialyzing bag through the liquid suction pipe 51, the dialyzing liquid is conveyed to the heat exchange pipe 143 through the liquid conveying pipe 52, the dialyzing liquid conveyed into the heat exchange pipe 143 can be heated under the effect of the sterilizing liquid with proper temperature in the heating cavity 14 and continuously flows out through the liquid conveying pipe 21 and continuously flows into the patient through the patient connecting port 221, and then the peritoneal dialysis liquid exchange of the patient is completed, and when the waste liquid flows into the patient connecting port 221, the waste liquid pipe 22, the control cylinder 24, the waste liquid communicating pipe 23 and the waste liquid bag connecting pipe 31 only flow into the waste liquid bag through the one-way valve in the liquid conveying pipe 52, the control cylinder 24 blocks the space between the waste liquid communication tube 23 and the waste liquid tube 22, thereby ensuring that the dialysate flows into the human body through the patient connection port 221.
The control cylinder 24 is connected with a baffle 241 in a sliding way, a tension spring 242 is fixedly connected to the baffle 241, one point of the tension spring 242 away from the baffle 241 is fixedly connected to the inner wall of the control cylinder 24, a liquid discharging hole 145 communicated with the control cylinder 24 is formed in the bottom of the heating cavity 14, a liquid adding pipe is communicated with the top of the heating cavity 14, and a sealing cover 141 is connected to the liquid adding pipe in a threaded way.
Through the technical scheme, when the device is used, after a proper amount of disinfectant is added into the heating cavity 14, the disinfectant is required to be connected onto the liquid adding pipe through the sealing cover 141 in a threaded manner, so that the heating cavity 14 is sealed, then when the disinfectant is completely discharged, the liquid pump 5 and the heating rod 144 are controlled to work, when the temperature of the disinfectant in the heating cavity 14 does not reach the temperature required by heating the dialysate at the beginning stage, part of the dialysate is conveyed into the liquid inlet pipe 21 by the liquid pump 5, after the part of the dialysate enters the patient connecting port 221, the part of the dialysate is communicated with the liquid outlet pipe 22 and the liquid outlet communicating pipe 23, and flows into the liquid outlet bag through the liquid outlet pipe 22, the control cylinder 24, the liquid outlet communicating pipe 23 and the liquid outlet bag connecting pipe 31 under the action of gravity, so that the waste liquid remained in the patient connecting port 221 and a small part of the waste liquid entering the liquid inlet pipe 21 in the process of discharging the waste liquid can be discharged and cleaned, so as to ensure that the subsequent dialysis fluid delivered into the patient can not be polluted, when the temperature of the disinfection fluid in the heating cavity 14 reaches the temperature required by heating the dialysis fluid, the disinfection fluid in the cavity of the heating cavity 14 and the air at the upper part expand under the principle of thermal expansion and cold contraction, and the heating cavity 14 is in a sealing state, so that the air pressure in the heating cavity 14 is increased, part of the disinfection fluid can be extruded into the control cylinder 24 through the lower liquid hole 145 by the increased air pressure, the baffle 241 is pushed downwards under the action of overcoming the tension of the tension spring 242, the baffle 241 is used for blocking the communication between the waste liquid communicating pipe 23 and the waste liquid pipe 22, the purpose of blocking the waste liquid pipe 22 is achieved, the dialysis fluid discharged through the liquid inlet pipe 21 at the beginning stage is fully flushed in the liquid inlet pipe 21 and the patient connecting port 221, the subsequent dialysate entering the patient connection port 221 through the liquid inlet pipe 21 can be completely conveyed into the patient due to the plugging of the waste liquid pipe 22, so that the purpose of conveying the dialysate into the patient after the waste liquid in the liquid inlet pipe 21 and the patient connection port 221 is discharged is achieved, the cleanliness of the input dialysate can be ensured, and the health of the patient is facilitated.
The through hole 123 that is linked together with heating chamber 14 has been seted up in the dialysis bag is placed chamber 12, installs the solenoid valve in the through hole 123, and the first disinfection lamp 121 of fixedly connected with is placed to the dialysis bag on the chamber 12, and the second disinfection lamp 25 of fixedly connected with is placed to tubular product receiver 2, and the waste liquid bag is placed chamber 13 in fixedly connected with third disinfection lamp 32.
Through the technical scheme, after the device is used for changing the peritoneal dialysis solution of a patient, the dialysis bag in the dialysis bag placement cavity 12 is taken out, the cover plate 4 is closed, the waste liquid bag in the waste liquid bag placement box 3 is taken out, the waste liquid bag placement box 3 is pushed into the waste liquid bag placement cavity 13, the liquid inlet pipe 21, the waste liquid pipe 22 and the patient connecting port 221 can be contained in the pipe storage box 2, the pipe storage box 2 is pushed into the installation cavity 11, then the first sterilizing lamp 121, the second sterilizing lamp 25 and the third sterilizing lamp 32 are started, the first sterilizing lamp 121, the second sterilizing lamp 25 and the third sterilizing lamp 32 can emit ultraviolet rays to continuously sterilize the dialysis bag placement cavity 12, the pipe storage box 2 and the waste liquid bag placement box 3, the electromagnetic valve positioned in the through hole 123 is controlled to be opened, so that the sterilizing solution in the heating cavity 14 can flow into the dialysis bag placement cavity 12 through the through hole 123, the stopper 241 in the control tube 24 is reset under the tension of the tension spring 242, the blocking of the waste liquid communicating pipe 23 and the waste liquid pipe 22 is canceled, the tube storage box 2 is further sterilized by the sterilizing liquid, then the liquid pump 5 is started, the sterilizing liquid flowing into the dialysis bag storage cavity 12 is pumped by the liquid pump 5 through the liquid suction pipe 51 and is conveyed into the tube storage box 2 through the liquid conveying pipe 52, the heat exchange pipe 143, the liquid inlet pipe 21 and the patient connecting port 221, the liquid inlet pipe 21, the waste liquid pipe 22 and the control tube 24 which are accommodated in the tube storage box 2 are further sterilized, and the sterilizing liquid in the tube storage box 2 is gradually increased along with the continuous conveying of the sterilizing liquid into the tube storage box 2 by the liquid pump 5, when the liquid level of the sterilizing liquid exceeds the communicating port of the waste liquid communicating pipe 23 and the waste liquid pipe 22 which are positioned on the control tube 24, the sterilizing liquid in the tube storage box 2 can be conveyed out under the atmospheric pressure through the patient connecting port 221, the waste liquid pipe 22, the control cylinder 24, the waste liquid communicating pipe 23 and the waste liquid bag connecting pipe 31 flow into the waste liquid bag placing box 3, and continuously pumping the disinfectant in the pipe storage box 2 until the liquid level of the disinfectant is lower than the opening of the patient connecting port 221 placed at the bottom of the pipe storage box 2, so that the disinfectant in the pipe storage box 2 can be fully discharged into the waste liquid bag placing box 3, and the waste liquid bag placing box 3 is further disinfected.
Referring to fig. 1-8, an auxiliary system for changing liquid of an abdominal cavity for clinical medicine is provided, which is applied to an apparatus for changing liquid of an abdominal cavity for clinical medicine, and further comprises;
the analysis control module 6 is used for performing analysis control on the heating rod 144, the electromagnetic valve and the liquid pump 5;
a battery module 7 for supplying power to the heating rod 144, the solenoid valve, the liquid pump 5, the temperature sensor and the flow sensor;
the warning module 8 is used for sending warning when the device fails;
and the patient state monitoring module is used for monitoring the physical state of the patient.
The working process of the analysis control module 6 is as follows:
s1, collecting flow velocity information of waste liquid in a waste liquid pipe 22, judging whether the waste liquid is discharged or not, and analyzing and recording the amount of the discharged waste liquid;
s2, after the complete discharge of the waste liquid is monitored, acquiring relevant state information of the body of the patient in real time through a patient state monitoring module, obtaining the speed of the input dialysate suitable for the patient, and controlling the liquid pump 5 and the heating rod 144 to work;
s3, monitoring the flow rate of the dialysate in the liquid inlet pipe 21 and the temperature of the dialysate flowing through the patient connecting port 221, if data which does not accord with theoretical data are monitored, indicating that the device is out of order, timely sending out warning, and controlling the liquid pump 5 and the heating rod 144 to stop working.
In the analysis process of obtaining the input dialysate speed in step S2, the steps are as follows:
by the formula
Figure BDA0004197493430000121
Calculating the infusion speed V suitable for the patient a ；
Wherein alpha is i (t) is the real-time value of the sign information of the ith patient, alpha oi Is the standard reference value of the ith patient sign information, and the patient sign information comprises, but is not limited to, blood pressure, heart rate, body temperature and blood sugar, sigma i The weight coefficient of the sign information of the ith patient can be obtained by fitting according to empirical numerical calculation, f is a function corresponding to the optimal infusion speed of the patient, and f can be obtained by modeling according to the optimal input dialysate speed of the patient corresponding to each sign information of the patient.
Output power P of liquid pump 5 a ＝V a *θ；
Wherein θ is a power coefficient corresponding to the flow rate of the dialysate, and can be obtained by fitting according to empirical numerical calculation, so that the output power of the liquid pump 5 can be conveniently controlled and regulated;
heating power P of heating rod 144 r ＝|T a -T o |*V a *θ；
Wherein T is a T is the temperature before the dialysate is not heated o In order to adapt to the temperature of the patient, θ is the endothermic power coefficient of the dialysate, and can be obtained by fitting according to empirical numerical calculation, so that the heating power of the heating rod 144 can be conveniently controlled and adjusted.
Through the technical scheme, the system can acquire the speed of the input dialysate which is most suitable for a patient through the real-time acquired body-related state information, and analyze and acquire the heating power required by heating the dialysate to the proper temperature in the process of inputting the dialysate at the speed, so that the liquid pump 5 and the heating rod 144 are controlled to heat the dialysate and convey the dialysate into the patient, the purposes of intelligently controlling the speed of inputting the dialysate into the patient and synchronously heating the dialysate to the proper temperature are achieved, and the problem of discomfort of the patient caused by speed or temperature discomfort in the use process of the conventional peritoneal dialysis fluid exchange device can be avoided.
The specific process of warning in the step S3 is as follows:
input speed V to suitable patient a Set proper temperature T of human body o And the actual input speed V c Actual input dialysate temperature T c And (3) performing comparison:
if V c ＝V a And T is c ＝T o The normal operation of the device is illustrated;
otherwise, the device is proved to be in fault, the analysis control module 6 controls the liquid pump 5 and the heating rod 144 to stop working, and the warning module 8 sends out warning;
wherein V is c For data acquired by flow sensor in inlet pipe 21, T c The data acquired by the temperature sensor in the patient connection port 221 are acquired in real time, the conveying speed of the dialysate in the liquid inlet pipe 21 and the temperature in the patient connection port 221 are acquired in real time, and compared with the proper input speed of the dialysate for the patient and the proper set temperature for the human body, the working state of the device can be monitored in real time, and when faults occur, the input of the dialysate is effectively controlled to stop in time, so that the damage to the patient is avoided.
The foregoing describes one embodiment of the present invention in detail, but the disclosure is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims (10)

1. The abdomen penetrating fluid changing device for clinical medicine is characterized by comprising a fluid changing box (1), wherein a dialysis bag placing cavity (12), a heating cavity (14), an installation cavity (11) and a waste fluid bag placing cavity (13) are arranged in the fluid changing box (1);
the heating component is arranged in the heating cavity (14) and is used for heating the dialysate flowing through the heating cavity;
the pipe storage box (2) is connected in the installation cavity (11) in a sliding manner and is used for storing and sterilizing the liquid exchange pipe;
the liquid delivery assembly is arranged in the mounting cavity (11) and is used for delivering the dialysate into a patient through the liquid exchange tube;
the waste liquid bag placing box (3) is connected in the waste liquid bag placing cavity (13) in a sliding mode and is used for temporarily placing the waste liquid bag.
2. The peritoneal dialysis fluid exchange device of claim 1, wherein the heating assembly comprises a heat exchange tube (143) and a heating rod (144), and both the heat exchange tube (143) and the heating rod (144) are fixedly connected in the heating chamber (14).
3. The peritoneal dialysis solution exchange device for clinical medicine according to claim 2, wherein the solution delivery assembly comprises a liquid pump (5), a liquid suction pipe (51) is communicated with the input end of the liquid pump (5), one end of the liquid suction pipe (51) away from the liquid pump (5) extends into the dialysis bag placement cavity (12), an infusion tube (52) is communicated with the output end of the liquid pump (5), one end of the infusion tube (52) away from the liquid pump (5) extends into the heat exchange cavity (14) and is communicated with one end of the heat exchange tube (143), and a one-way valve is arranged in the infusion tube (52).
4. A clinical medicine peritoneal dialysis fluid exchange device according to claim 3, wherein the fluid exchange tube comprises a fluid inlet tube (21) and a waste fluid tube (22), wherein flow sensors are arranged in the fluid inlet tube (21) and the waste fluid tube (22), and one end of the fluid inlet tube (21) extends into the heating cavity (14) and is communicated with the other end of the heat exchange tube (143);
a control cylinder (24) is fixedly connected to the inner wall of the mounting cavity (11) and used for controlling the opening and closing of the waste liquid pipe (22), one end of the waste liquid pipe (22) is communicated with the control cylinder (24), the other end of the waste liquid pipe (22) is fixedly connected with a patient connecting port (221), a temperature sensor is arranged in the patient connecting port (221), and the other end of the liquid inlet pipe (21) is communicated with the waste liquid pipe (22) in the direction close to the patient connecting port (221);
the control cylinder (24) is communicated with a waste liquid communicating pipe (23), one end of the waste liquid communicating pipe (23) far away from the control cylinder (24) extends to the waste liquid bag placing cavity (13) and is internally connected with a waste liquid bag connecting pipe (31), and the waste liquid bag connecting pipe (31) is positioned in the waste liquid bag placing box (3).
5. The peritoneal dialysis fluid exchange device for clinical medicine according to claim 4, wherein a stopper (241) is slidably connected to the control cylinder (24), a tension spring (242) is fixedly connected to the stopper (241), the tension spring (242) is fixedly connected to the inner wall of the control cylinder (24) at a point far away from the stopper (241), a lower fluid hole (145) communicated with the control cylinder (24) is formed in the bottom of the heating cavity (14), a fluid filling pipe is communicated with the top of the heating cavity (14), and a sealing cover (141) is connected to the fluid filling pipe in a threaded manner.
6. An auxiliary system for changing liquid of an abdominal cavity for clinical medicine, which is applied to the device for changing liquid of an abdominal cavity for clinical medicine according to any one of claims 1-5, and is characterized by further comprising:
the analysis control module (6) is used for performing analysis control on the heating rod (144), the electromagnetic valve and the liquid pump (5);
the battery module (7) is used for supplying power to the heating rod (144), the electromagnetic valve, the liquid pump (5), the temperature sensor and the flow sensor;
the warning module (8) is used for sending warning when the device fails;
and the patient state monitoring module is used for monitoring the physical state of the patient.
7. The auxiliary system for exchange of peritoneal fluid for clinical medicine according to claim 6, wherein the working process of the analysis control module (6) is as follows:
s1, collecting flow velocity information of waste liquid in a waste liquid pipe (22), judging whether the waste liquid is discharged or not, and analyzing and recording the amount of the discharged waste liquid;
s2, after the complete discharge of the waste liquid is monitored, acquiring relevant state information of the body of the patient in real time through a patient state monitoring module, obtaining the speed of the input dialysate suitable for the patient, and controlling the liquid pump (5) and the heating rod (144) to work;
s3, monitoring the flow rate of the dialysate in the liquid inlet pipe (21) and the temperature of the dialysate flowing through the patient connecting port (221), if data which are inconsistent with theoretical data are monitored, indicating that the device is out of order, timely sending out warning, and controlling the liquid pump (5) and the heating rod (144) to stop working.
8. The auxiliary system for changing liquid of abdominal cavity for clinical medicine according to claim 7, wherein in the analysis process of obtaining the input dialysate velocity in the step S2, it is:
by the formula
Figure FDA0004197493420000031
Calculating the infusion speed V suitable for the patient a ；
Wherein alpha is i (t) is the real-time value of the sign information of the ith patient, alpha oi Standard reference value sigma for the i-th patient sign information i The weight coefficient of the sign information of the ith patient is f, and the f is the optimal infusion speed corresponding function of the patient.
9. An auxiliary system for changing liquid of abdominal cavity for clinical medicine according to claim 8, characterized in that the output power P of the liquid pump (5) a ＝V a *θ；
Wherein θ is a power coefficient corresponding to the dialysate flow rate;
heating power of the heating rod (144)
Figure FDA0004197493420000032
Wherein the T is a T is the temperature before the dialysate is not heated o In order to be suitable for the temperature of the patient,
Figure FDA0004197493420000041
is the endothermic power coefficient of the dialysate.
10. The auxiliary system for changing liquid of abdominal cavity for clinical medicine according to claim 9, wherein the specific process of warning in step S3 is as follows:
input speed V to suitable patient a Set proper temperature T of human body o And the actual input speed V c Actual input dialysate temperature T c And (3) performing comparison:
if V c ＝V a And T is c ＝T o The normal operation of the device is illustrated;
otherwise, the device is proved to be faulty, the analysis control module (6) controls the liquid pump (5) and the heating rod (144) to stop working, and the warning module (8) sends out warning;
wherein the V is c For the data acquired by the flow sensor in the liquid inlet pipe (21), T c Acquired data is collected for a temperature sensor within a patient connection port (221).
CN202310451278.XA 2023-04-25 2023-04-25 Clinical medicine is with peritoneal dialysis liquid exchange device and liquid auxiliary system that trades thereof Withdrawn CN116236635A (en)

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Application publication date: 20230609