[go: up one dir, main page]

CN116510102A - Drainage pipeline blocking state monitoring system - Google Patents

Drainage pipeline blocking state monitoring system Download PDF

Info

Publication number
CN116510102A
CN116510102A CN202310757002.4A CN202310757002A CN116510102A CN 116510102 A CN116510102 A CN 116510102A CN 202310757002 A CN202310757002 A CN 202310757002A CN 116510102 A CN116510102 A CN 116510102A
Authority
CN
China
Prior art keywords
drainage
urine
catheter
pressure
monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310757002.4A
Other languages
Chinese (zh)
Inventor
阮雪红
陈旭良
崔伟伟
张丹
阮东耀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Winziss Medical Group Co ltd
Original Assignee
Xi'an Winziss Medical Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Winziss Medical Group Co ltd filed Critical Xi'an Winziss Medical Group Co ltd
Priority to CN202310757002.4A priority Critical patent/CN116510102A/en
Publication of CN116510102A publication Critical patent/CN116510102A/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/69—Drainage containers not being adapted for subjection to vacuum, e.g. bags
    • 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
    • A61M1/70—Gravity drainage systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M2025/0001—Catheters; Hollow probes for pressure measurement
    • A61M2025/0002—Catheters; Hollow probes for pressure measurement with a pressure sensor at the distal end
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0496—Urine
    • 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
    • A61M2205/3327—Measuring
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/35—Communication
    • 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
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • 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
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502—User interfaces, e.g. screens or keyboards
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Surgery (AREA)
  • Epidemiology (AREA)
  • Urology & Nephrology (AREA)
  • External Artificial Organs (AREA)

Abstract

The invention relates to a drainage pipeline blockage state monitoring system which mainly comprises a monitoring instrument and a special drainage catheter. The intelligent drainage catheter has the beneficial effects that the monitoring instrument is combined with the special drainage catheter, the drainage state of the indwelling catheterization patient is dynamically monitored according to the algorithm model in the embedded software, and the states of oliguria, catheter blockage or drainage tube blockage of the patient are timely prompted. The medical staff can intervene in time, the clinical risk of blockage of the drainage pipeline is reduced, the blank in the technical field is filled, and the drainage pipeline is worthy of clinical popularization and use.

Description

Drainage pipeline blocking state monitoring system
Technical Field
The invention relates to a drainage pipeline blockage state monitoring system which is used for dynamically monitoring the unobstructed performance of a urinary catheter in the urine drainage process, and belongs to the field of medical instruments or nursing products.
Background
Catheterization is a common clinical technical means, and specifically comprises the steps of inserting a catheter into a bladder through a urethra, and draining urine into a urine collection bag. Patients with urinary tract obstruction, patients with anesthesia surgery, and comatose critically ill patients, etc., typically require a catheter to be left in the patient's urethra (i.e., a catheter) for a long period of time until it is able to spontaneously urinate after recovery.
The blockage of the drainage pipeline is a common risk of indwelling the catheter, and inorganic salt, protein and other substances in urine are attached to the wall of the catheter or the catheter is twisted due to the change of the body position of a patient in the long-time indwelling process of the catheter, so that the blockage of the drainage pipeline is a main factor. Especially after transurethral prostatoplasia electrotomy (TURP), the surgical wound is much more bleeding and may be accompanied by surgical tissue fragments. During the period, although nursing means such as bladder irrigation and the like are adopted, 14 percent of occurrence rate of tube blockage is still reported clinically. The drainage pipeline is blocked to cause urination obstruction, urine can not be normally discharged, acute urinary retention is caused, symptoms such as bladder area expansion, severe abdominal pain and the like are caused, and pain and psychological fear of a patient are increased. A more serious consequence is that if an intervention is not found and performed in time, it may lead to dilatation of the patient ureter, hydronephrosis, with impairment of renal function.
Drainage line blockage, despite the significant clinical risk, is currently not an effective dynamic monitoring means. The unobstructed nature of drainage pipeline highly relies on medical personnel to look over at regularly, or the patient relies on the self-perception of bladder inflation, and this kind of guardianship mode wastes time and energy, and the time efficiency is poor, can not in time discover drainage pipeline jam state. In particular, for patients with bladder irrigation following TURP, a large amount of fluid enters the bladder rapidly per minute, allowing short treatment times following line blockage; alternatively, the clinical risk is greater in patients with coma and neurogenic bladder dysfunction where the bladder is not self-perceived as full or distending. Therefore, the inventor provides a drainage pipeline blocking state monitoring system, which fills the blank of the prior clinical technology.
Disclosure of Invention
The invention relates to a drainage pipeline blockage state monitoring system which mainly comprises a monitoring instrument and a special drainage catheter. The monitoring instrument mainly comprises a control main board, a pressure sensor, a flow sensor and a communication module; the special drainage catheter mainly comprises a catheter, a three-way joint, a calendaring long tube, a drainage tube and a urine collecting bag.
The control main board is an integrated circuit constructed based on a core processor, a memory, a signal processor and the like, and the core processor adopts a single chip Microcomputer (MCU). The core processor is communicated with the pressure sensor, the flow sensor and the communication module for working. The control main board is also internally provided with embedded software, the embedded software is burnt in a memory, and the functions of the embedded software comprise hardware driving, program control and an algorithm model for recognizing the drainage state.
The pressure sensor is used for dynamically monitoring the pressure value in the drainage pipeline, the pressure sensor sends the pressure data obtained by dynamic monitoring to the core processor, and a pressure measuring interface of the pressure sensor is communicated with the pressure measuring extension pipe. The pressure sensor is arranged in the monitoring instrument, and the pressure measuring interface of the pressure sensor is arranged on the outer side of the shell of the monitoring instrument. In order to reduce the length of the measurement extension tube and shorten the measurement response time, the pressure sensor can be independently packaged and used as a plug-and-play plug-in component of the monitoring instrument. For example, the pressure sensor is packaged into a pressure measuring module similar to a small square box, the pressure measuring module is connected and communicated with the monitoring instrument through a USB data line, a pressure measuring interface is arranged on the periphery of the pressure measuring module, and the pressure measuring interface is connected with the pressure measuring extension tube.
The flow sensor is used for monitoring the outflow of urine in the drainage tube, and the flow sensor sends urine volume data obtained by dynamic monitoring to the core processor. According to different monitoring technical modes, the optional flow sensor comprises any one or a combination of a plurality of gravity sensors, infrared liquid drop sensors, optical fiber flow sensors, turbine flow sensors and the like.
The installation modes of the flow sensors are inconsistent according to the different flow sensors. For example, a suspension gravity sensor is adopted, the measurement precision is not lower than 0.1g, and the error is not more than +/-10%. The gravity sensor is arranged at the bottom or the side surface of the monitoring instrument, the urine collection bag is hung on a hanging hook of the gravity sensor, and after the urine flows from the bladder to the urine collection bag, the outflow of the urine is dynamically sensed through the gravity sensor.
For another example, an infrared drop sensor can be used, specifically, a mofei dropping funnel is arranged in the drainage tube,
the infrared liquid drop sensor is arranged at the periphery of the mof dropping funnel, when no urine liquid drop passes through the mof dropping funnel, a receiving tube of the infrared liquid drop sensor is conducted by light, and an output signal is marked as 0; when urine drops pass through the mof dropping funnel, the drops refract light, the luminous flux of the receiving tube is insufficient, and the output signal is marked as 1, so that the number of the urine drops in unit time is calculated. Since the volume of urine per drop is substantially constant, the volume of each drop is multiplied by the number of drops, i.e., the amount of urine drawn per unit time.
The communication module adopts a conventional Bluetooth or WiFi module, and is used for remote uploading of local data of the monitoring instrument or remote interaction with other electronic equipment. For example, the monitoring instrument communicates with an upper computer, and the upper computer comprises a computer (including an integrated machine, a tablet personal computer, an iPad and the like), a mobile phone or a handheld medical information terminal. For example, the user data of the monitoring instrument is sent to a nurse station or a patient mobile phone App, so that data remote interaction is realized.
The special drainage catheter is a special consumable matched with a monitoring instrument for use, and is usually disposable. Wherein:
the catheter is a flexible pipeline which is remained in the bladder and guides urine out of the body. The catheter is generally divided into multiple specifications such as a double-cavity catheter, a three-cavity catheter, a temperature measuring catheter and the like according to different structures and purposes.
The three-way joint is used for switching and communicating the catheter, the pressure measurement extension tube and the drainage tube, the upper interface of the three-way joint is communicated with the catheter, the lower interface is communicated with the drainage tube, and the side interface is communicated with the pressure measurement extension tube. The side interface communicated with the pressure measuring extension tube is a pressure measuring datum point for measuring the pressure in the drainage pipeline by the monitoring instrument.
The pressure measuring long tube is a flexible pipeline which is communicated with the three-way joint and the pressure measuring interface of the pressure sensor, two ends of the pressure measuring long tube are respectively provided with a quick joint, one quick joint is communicated with the three-way joint, and the other quick joint is communicated with the pressure measuring interface of the pressure sensor. The pressure measuring and rolling long tube has the main effects of dynamically conducting the pressure in the drainage pipeline to the pressure sensor, and simultaneously isolating urine from a pressure measuring interface of the pressure sensor through air in the pressure measuring and extending tube pipeline, so that the pressure sensor is prevented from being polluted by the urine.
The drainage tube is a flexible pipeline for connecting the catheter and the urine collecting bag, and is used for draining urine in the bladder into the urine collecting bag. The front end of the drainage tube is communicated with the catheter by a three-way joint, and the tail end of the drainage tube is communicated with the urine collecting bag. If the infrared liquid drop sensor is adopted to measure the urine flow, the drainage tube is also provided with a Morfei dropping funnel.
The special drainage catheter is made of medical polymer materials, the catheter is usually made of latex and silica gel materials, the three-way joint, the calendaring long tube and the drainage tube are made of medical polyvinyl chloride materials, and the urine collecting bag is made of PE film materials.
In the urine drainage process, a monitoring instrument is combined with a special drainage catheter, the urine flow and the pressure value in the lumen are dynamically collected, and the unobstructed performance of the urinary catheter is dynamically monitored according to a drainage state identification model built in embedded software. Based on the structural characteristics of the invention, a great amount of practical researches show that the pressure data in the drainage pipeline obtained by the pressure sensor in the clinical real-world drainage process is that the joint part of the three-way joint and the pressure measurement extension pipe is used as a pressure measurement datum point: when the drainage hole of the catheter or the catheter cavity is blocked at the upstream of the pressure measuring datum point, the pressure value in the catheter cavity is lower than-5 cmH 2 O, in particular at-5 cmH 2 O～-45cmH 2 O is between the two; when the inner cavity of the drainage tube at the downstream of the pressure measuring datum point is blocked, the pressure value in the tube cavity is not less than 0cmH 2 O, along with the continuous increase of urine secreted by the bladder, the pressure value in the lumen is continuously increased; when the drainage of the pipeline between the catheter and the urine collecting bag is smooth, the pressure value in the cavity of the catheter is kept at-5 cmH 2 O～5cmH 2 And O.
According to the characteristic of pressure change in different states in the drainage pipeline, the construction method of the algorithm model for identifying the drainage state in the embedded software comprises the following steps: to monitor the duration (min), urine flow (ml/min) and intraluminal pressure value (cmH) 2 And O) three element construction algorithms dynamically prompt the monitoring result of the internal blocking state of the drainage pipeline according to the change relation between the urine flow and the pressure value in the monitoring time. Wherein the intra-lumen pressureThe force value is measured data of pressure in the drainage pipeline, the monitoring time length and the urine flow are variable values which are set by medical staff according to individual characteristics of patients, the monitoring time length is set between 1min and 30min, and the urine flow is set between 0.2ml/min and 2ml/min. During the monitoring period, the urine flow is lower than a set threshold value, and the intra-lumen pressure value is lower than-5 cmH 2 When O, prompting the blockage of the drainage hole of the catheter or the catheter cavity; during the monitoring period, the urine flow is lower than the set threshold value and the intra-lumen pressure value is not less than 0cmH 2 O and when the O is slowly increased along with the time, prompting the inner cavity of the drainage tube to be blocked; during the monitoring period, the urine flow is lower than the set threshold value, and the intra-lumen pressure value is kept at-5 cmH 2 O～5cmH 2 And between O, prompting the catheter to smoothly drain to the urine collecting bag, wherein the patient is in a oliguria or non-oliguria state.
For example, the algorithm model for default drainage state identification in embedded software is that the monitoring time is 5min (settable), the urine flow threshold is 0.3ml/min (settable), and the algorithm model is as follows:
s1: when the urine flow is greater than 1.5ml in every 5 minutes, and the intraluminal pressure value is at-5 cmH 2 O～5cmH 2 And when the drainage state is normal, the monitoring result prompts that the drainage state is normal.
S2: when the urine flow is less than 1.5ml in every 5 minutes, and the intraluminal pressure value is-5 cmH 2 O～5cmH 2 And when the urine is in the range of O, the monitoring result prompts little urine or no urine, and warning information is sent.
S3: when the urine flow is less than 1.5ml per 5 minutes, and the intraluminal pressure value is below-5 cmH 2 And when the catheter is blocked, the monitoring result prompts the catheter to be blocked, and warning information is sent.
S4: when the urine flow is less than 1.5ml in every 5 minutes, the pressure value in the lumen is not less than 0cmH 2 And when O is slowly increased along with time, the monitoring result prompts that the inner cavity of the drainage tube is blocked, and warning information is sent.
Obviously, according to different patient characteristics, medical personnel can independently set up different with monitoring duration (min), urine flow threshold value (ml/min), satisfy the dynamic guardianship of different patient drainage states. For example, for a normal patient with stable vital signs, the monitoring time period is set to 15min, and the urine flow threshold is set to 1.5ml/min; for ICU patients with low urine volume, the monitoring time period is set to 10min, and the urine flow threshold is set to 1.0ml/min; for patients with bladder irrigation where a large amount of fluid enters the body, the monitoring period is set to 2min and the urine flow threshold is set to 2ml/min.
The invention has the beneficial effects that the monitoring instrument is combined with the special drainage catheter, the drainage state of the indwelling catheterization patient is dynamically monitored according to the algorithm model in the embedded software, and the states of oliguria, catheter blockage or drainage tube blockage of the patient are timely prompted. The medical staff can intervene in time, the clinical risk of blockage of the drainage pipeline is reduced, the blank in the technical field is filled, and the drainage pipeline is worthy of clinical popularization and use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention
FIG. 2 is a block diagram of the working principle of the present invention
The figure shows: monitoring instrument 100, pressure sensor 101, infrared drop sensor 102, USB line 103, gravity sensor 104, catheter 201, three-way connector 202, pressure measurement extension tube 203, drainage tube 204, urine collection bag 205, and mofei dropping funnel 206.
Description of the embodiments
The present invention will be specifically described below with reference to the drawings and examples.
Example 1: the monitoring instrument 100 of the present invention is prepared by
1. As shown in fig. 2, a schematic diagram of the monitoring apparatus 100 is designed, and the main component list is as follows:
the core processor adopts a model STC89C52 singlechip (STC company); the pressure sensor 101 adopts the model GZP6847 micro (without tin) with the measuring range of-50 KPa to 50KPa; the infrared drop sensor 102 employs a set of infrared pairs of tubes to make a scanning grating; the gravity sensor 104 adopts SBT620 (Guangzhou), the maximum error is 0.3%, and the measuring range is 0-5 kg; the communication module adopts a WiFi module, the model QCA9377 (high-pass company), the storage module adopts a three-star HY27US08561A chip, and the storage capacity is 32M.
The functional keys of the man-machine interaction interface adopt ohm dragon company B3F type touch switch buttons, and the size is 12 x 7.3. The display screen (1-3) adopts 2.9 inch LCD liquid crystal, and the working voltage is DC3.0V; the sound prompter adopts a conventional buzzer, and the internal power supply is 10000mA and a 3.7V rechargeable lithium battery (Yi-tui company).
The PCB is designed according to the conventional integrated circuit technology, and an electronic patch or welding process is adopted to prepare a control main board, wherein the length of the control main board is 90mm, and the width of the control main board is 60mm.
2. Designing a protective shell mold matched with the size of the control main board, wherein a USB line 103 interface and a DC charging interface are required to be arranged on the right side of the protective shell; the front of the protective shell is provided with an observation window matched with the liquid crystal screen, and functional keys are arranged below the observation window, and comprise an on-off key, a monitoring duration setting key, a urine flow setting key and the like; the left side of the protective housing is provided with a limit groove which can be matched with the size of the mof dropping funnel 206, and the infrared drop sensor 102 is arranged on the left side of the mof dropping funnel 206.
Example 2 preparation method of drainage catheter special for use in the invention
1. As shown in fig. 1, an extrusion die for preparing a catheter 201, a pressure measuring extension tube 203 and a drainage tube 204 is prepared, wherein the size of the catheter 201 is 18Fr, and the length of the pressure measuring extension tube 203 is 30cm and the inner diameter is 2mm; the length of the drainage tube 204 is 120cm and the inner diameter is 8mm.
And (3) preparing injection molds of the three-way joint 202 and the mof dropping funnel 206, wherein the sizes of the joints of the three-way joint 202 and the mof dropping funnel 206 are in airtight fit with the catheter 201, the pressure measuring extension tube 203 and the drainage tube 204.
The urine collection bag 205 was sealed with a PP film by high-frequency heat sealing, and the volume was 2000ml.
2. The three-way joint 202 of each part is bonded with the head of the pressure measurement extension tube 203 and the head of the drainage tube 204 by adopting medical glue (such as cyclohexanone, etc.), the tail of the drainage tube 204 is bonded with the urine collection bag 205, and the tensile strength of the fixed bonding part is checked to be not lower than 10N without leakage points.
Example 3 application of the present invention in conjunction with a monitoring apparatus 100 and a dedicated drainage catheter
1. As shown in fig. 1, a catheter 201 is communicated with a three-way joint 202 in a sealing way, the front end of a pressure measurement extension tube 203 is communicated with the three-way joint 202, the rear end of the pressure measurement extension tube 203 is communicated with a pressure sensor 101, and the head of a drainage tube 204 is communicated with the three-way joint 202.
2. The mof funnel 206 according to the dedicated drainage catheter is inserted into the flow monitoring card slot on the left side of the monitoring instrument 100.
3. The pressure sensor 101 is communicated with the right side interface of the monitoring instrument 100 by adopting a USB line 103, and the urine collection bag is vertically hung on a gravity sensor 104 hanging arm of the monitoring instrument 100.
4. The catheter 201 is placed in the bladder of a patient, the power supply of the monitoring instrument 100 is turned on, the monitoring time period is set to be 5min, and the urine flow threshold value is set to be 0.5ml/min, so that the dynamic monitoring of the drainage state can be realized.
The drawings and examples are only for the purpose of illustrating the invention and are not to be construed as limiting the invention, although reference is made to the preferred embodiments
While the invention has been described in detail with reference to the specific embodiments thereof, it will be understood by those skilled in the art that various changes may be made and equivalents substituted for elements thereof without departing from the spirit and scope of the invention, and it is intended to cover in the appended claims any and all such modifications as fall within the true scope of the invention.

Claims (9)

1. The utility model provides a drainage pipeline jam state monitoring system mainly comprises guardianship instrument (100) and special drainage pipe, wherein guardianship instrument (100) mainly comprises control mainboard, pressure sensor (101), flow sensor and communication module; the special drainage catheter mainly comprises a catheter (201), a three-way joint (202), a pressure measurement extension tube (203), a drainage tube (204) and a urine collection bag (205); the core processor is communicated with the pressure sensor (101), the flow sensor and the communication module for working; the embedded software is also arranged in the control main board and burnt in the memory, and the functions of the embedded software comprise hardware driving, program control and an algorithm model for recognizing the drainage state; the construction method of the algorithm model for identifying the drainage state in the embedded software comprises the following steps: to monitor the duration (min), urine flow (ml/min) and intraluminal pressure value (cmH) 2 O) three elements of the construction algorithm,and dynamically prompting a monitoring result of the internal blocking state of the drainage pipeline according to the change relation between the urine flow and the pressure value in the monitoring time.
2. The drainage tube blockage status monitoring system of claim 1, further characterized by: the three-way joint (202) is used for switching and communicating the catheter (201), the pressure measuring extension tube (203) and the drainage tube (204), the upper interface of the three-way joint (202) is communicated with the catheter (201), the lower interface is communicated with the drainage tube (204), and the side interface is communicated with the pressure measuring extension tube (203); the side interface communicated with the pressure measuring long tube (203) is a pressure measuring reference point for measuring the pressure in the drainage pipeline by the monitoring instrument (100).
3. The drainage tube blockage status monitoring system of claim 1, further characterized by: the main function of the pressure measuring and extending pipe (203) is to dynamically conduct the pressure in the drainage pipeline to the pressure sensor (101), and meanwhile, urine is isolated from a pressure measuring interface of the pressure sensor (101) through air in the pressure measuring and extending pipe (203) pipeline, so that the pressure sensor (101) is prevented from being polluted by the urine.
4. The drainage tube blockage status monitoring system of claim 1, further characterized by: in the urine drainage process, the monitoring instrument (100) is combined with a special drainage catheter, the urine flow and the intraluminal pressure value are dynamically collected, and the smoothness performance of the catheter (201) is dynamically monitored according to a drainage state identification model built in embedded software.
5. The drainage tube blockage status monitoring system of claim 1, further characterized by: when the drainage hole of the catheter (201) or the cavity of the catheter (201) is blocked at the upstream of the pressure measuring datum point, the pressure value in the cavity is lower than-5 cmH 2 O, in particular at-5 cmH 2 O～-45cmH 2 O is between the two; intra-lumen pressure value when lumen of drainage tube (204) downstream of pressure measurement reference point is blocked≧0cmH 2 O, along with the continuous increase of urine secreted by the bladder, the pressure value in the lumen is continuously increased; while the pressure value in the tube cavity is kept at-5 cmH when the drainage of the pipeline between the catheter (201) and the urine collecting bag (205) is smooth 2 O～5cmH 2 And O.
6. The drainage tube blockage status monitoring system of claim 1, further characterized by: the pressure value in the lumen is measured data of the pressure in the drainage pipeline, the monitoring time length and the urine flow are variable values which are set by medical staff according to individual characteristics of patients, the monitoring time length is set between 1min and 30min, and the urine flow is set between 0.2ml/min and 2ml/min.
7. The drainage tube blockage status monitoring system of claim 1, further characterized by: during the monitoring period, the urine flow is lower than a set threshold value, and the intra-lumen pressure value is lower than-5 cmH 2 When in O, prompting the blockage of a drainage hole of the catheter (201) or the inner cavity of the catheter (201); during the monitoring period, the urine flow is lower than the set threshold value and the intra-lumen pressure value is not less than 0cmH 2 O and slowly increasing along with time, prompting that the inner cavity of the drainage tube (204) is blocked; during the monitoring period, the urine flow is lower than the set threshold value, and the intra-lumen pressure value is kept at-5 cmH 2 O～5cmH 2 Between O, the catheter (201) is prompted to drain smoothly to the urine collection bag (205), but the patient is in a urine-free or urine-free state.
8. The drainage tube blockage status monitoring system of claim 1, further characterized by: the default algorithm model for drainage state identification in the embedded software is that the monitoring time is 5min (settable), the urine flow threshold is 0.3ml/min (settable), and the algorithm model is as follows:
s1: when the urine flow is greater than 1.5ml in every 5 minutes, and the intraluminal pressure value is at-5 cmH 2 O～5cmH 2 When the drainage state is normal, the monitoring result prompts that the drainage state is normal;
s2: when urine flow is within 5 minutesLess than 1.5ml, and the intra-lumen pressure value is-5 cmH 2 O～5cmH 2 When the urine is between the two parts O, the monitoring result prompts little urine or no urine, and warning information is sent;
s3: when the urine flow is less than 1.5ml per 5 minutes, and the intraluminal pressure value is below-5 cmH 2 When in O, the monitoring result prompts the blockage of the catheter (201) and sends warning information;
s4: when the urine flow is less than 1.5ml in every 5 minutes, the pressure value in the lumen is not less than 0cmH 2 And when O is slowly increased along with time, the monitoring result prompts that the inner cavity of the drainage tube (204) is blocked, and warning information is sent.
9. The drainage tube blockage status monitoring system of claim 1, further characterized by: the pressure measuring module is communicated with the monitoring instrument (100) through a USB data line (103), a pressure measuring interface is arranged on the periphery of the pressure measuring module, and the pressure measuring interface is connected with the pressure measuring extension tube (203).
CN202310757002.4A 2023-06-26 2023-06-26 Drainage pipeline blocking state monitoring system Pending CN116510102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310757002.4A CN116510102A (en) 2023-06-26 2023-06-26 Drainage pipeline blocking state monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310757002.4A CN116510102A (en) 2023-06-26 2023-06-26 Drainage pipeline blocking state monitoring system

Publications (1)

Publication Number Publication Date
CN116510102A true CN116510102A (en) 2023-08-01

Family

ID=87406615

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310757002.4A Pending CN116510102A (en) 2023-06-26 2023-06-26 Drainage pipeline blocking state monitoring system

Country Status (1)

Country Link
CN (1) CN116510102A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118105083A (en) * 2024-04-17 2024-05-31 长春理工大学 Urine volume measuring device
CN118319308A (en) * 2024-04-22 2024-07-12 长春理工大学 A bladder monitoring method and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118105083A (en) * 2024-04-17 2024-05-31 长春理工大学 Urine volume measuring device
CN118319308A (en) * 2024-04-22 2024-07-12 长春理工大学 A bladder monitoring method and system

Similar Documents

Publication Publication Date Title
CN116510102A (en) Drainage pipeline blocking state monitoring system
CN207101553U (en) Intelligent pressure catheter
CN113679895A (en) Urethral catheterization training system for human bladder function rehabilitation
CN112773950A (en) Indwelling manometric catheterization device, bladder monitor using same and application method
WO2013143361A1 (en) System and method for monitoring bladder and abdominal pressures, and bladder function recovery system
CN203263900U (en) Multifunctional retention catheterization device
CN208799249U (en) A kind of bladder temperature, pressure dynamic monitor
CN114949398A (en) Indwelling catheterization monitoring equipment and application method
CN220175704U (en) Drainage pipeline blocking state monitoring system
CN201399152Y (en) Catheter device with temperature sensor
CN115430018A (en) Visual urethral catheterization device
CN114129804B (en) Device for enema and rectal pressure detection of critical patient
CN211486133U (en) Catheter with pressure sensor
CN211584505U (en) Intelligent double-cavity air bag catheter
CN201260721Y (en) Safe type three-chamber temperature measurement catheter
CN205948168U (en) But real -time supervision pressure catheter
CN209361615U (en) Portable temperature display device and catheter temp measuring system for catheter thermometric
CN209770965U (en) Intelligent urethral catheterization device
CN108837197B (en) Drainage pipeline for measuring temperature, pressure and urine
CN209361616U (en) A kind of anti-clogging catheter
CN214912429U (en) A urinary catheter for continuous temperature measurement and pressure measurement
CN207591096U (en) A kind of three-chamber thermometric pressure measurement urethral catheterization device
CN215821873U (en) Medical uropoiesis surgery expansion drainage device
CN212593249U (en) A lumbar puncture external drainage flow monitoring device
CN213099746U (en) Catheter with warning function and recording urine volume

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination