CN115252964A - Dynamic monitoring sensor for infusion leakage - Google Patents
Dynamic monitoring sensor for infusion leakage Download PDFInfo
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- CN115252964A CN115252964A CN202211067895.1A CN202211067895A CN115252964A CN 115252964 A CN115252964 A CN 115252964A CN 202211067895 A CN202211067895 A CN 202211067895A CN 115252964 A CN115252964 A CN 115252964A
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- pressure sensing
- sensitive pressure
- monitoring sensor
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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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/16836—Monitoring, detecting, signalling or eliminating infusion flow anomalies by sensing tissue properties at the infusion site, e.g. for detecting infiltration
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/15—Detection of leaks
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
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- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a dynamic monitoring sensor for infusion leakage, which belongs to the field of medical equipment and comprises a latex sleeve, wherein a stretch-resistant film is fixedly connected to the top surface of the latex sleeve, raised friction grains are arranged on the top surface of the end part of the stretch-resistant film, a base film is fixedly connected to the inner surface of the latex sleeve, a first sensitive pressure sensing layer and a second sensitive pressure sensing layer are respectively and fixedly connected to the inner top surface and the inner bottom surface of the base film, the first sensitive pressure sensing layers and the second sensitive pressure sensing layers are connected with each other through a first lead, the top surface of the first sensitive pressure sensing layer is fixedly connected with a second lead, and an extension line is fixedly connected to the side wall of the latex sleeve.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a dynamic monitoring sensor for infusion leakage.
Background
The intravenous infusion is an important administration route in clinic, can maintain the balance of water, electrolytes and acid-base in a human body, can maintain the stability of an internal environment, and can supplement nutrition and treat diseases, the intravenous infusion technology has been used clinically for hundreds of years, is the most common technical operation in clinic at present due to direct and quick effect, has a very wide clinical application range, and is from newborn to old people, from outpatient emergency treatment to hospitalization, from treatment to inspection, the average infusion rate of inpatients is 73.35%, the drug leakage in the intravenous infusion process refers to the fact that drugs enter peripheral tissues instead of normal vascular passages, so that different degrees of damage is caused, the clinical drug extravasation caused by various factors becomes a common nursing problem, the incidence rate of the intravenous infusion leakage is about 17.8% according to literature reports, the incidence rate of the child infusion leakage can reach 63%, the occurrence rate of the drug leakage is not taken for patients who have undergone the infusion and do not take timely measures, the patients can have local skin color change, swelling, local skin pain and local tissue necrosis caused by different degrees, and even serious organ necrosis can be caused by disputes.
Through retrieval, chinese patent No. ZL202021223351.6 discloses a novel wearable infusion leakage detection alarm device, although can realize the full-automatic dynamic detection of the extravasation of contrast media and medicines, the operation is more convenient, but its sensor can't satisfy the requirements of conformability, sterilizability, high sensitivity, anti-interference, long life and no leakage, and the box cover of the dynamic monitoring sensor is dismantled comparatively complicatedly, so that ADC, integrated circuit bus and MCU in the box cover have lower maintenance efficiency, brought the problem of sensor defect.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a dynamic monitoring sensor for infusion leakage.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an infusion seepage dynamic monitoring sensor, includes the emulsion cover, the top surface rigid coupling of emulsion cover has the stretch-proofing membrane, the tip top surface of stretch-proofing membrane is provided with protruding friction line, and the internal surface rigid coupling of emulsion cover has the base film, the interior top surface of base film and interior bottom surface rigid coupling respectively have sensitive pressure sensing layer one and sensitive pressure sensing layer two, through a wire interconnect between the sensitive pressure sensing layer two, the equal rigid coupling of top surface of sensitive pressure sensing layer one has wire two, and the rigid coupling has the extension line on the lateral wall of emulsion cover, the printing has the outer lead in the extension line, and the outer surface rigid coupling of extension line has fixed cover, the equal rigid coupling in both ends of fixed cover has bandage one, the both ends of bandage one are threaded respectively and are connected with thorn coarse cotton cloth and soft coarse cotton cloth, and install public plug-in connector of lightning on the terminal surface of extension line.
Furthermore, the first lead and the second lead are connected with an outer lead, the outer lead is made of ultra-soft pure silver serving as a raw material through printing of a printing machine, the first sensitive pressure sensing layer is in contact connection with the second sensitive pressure sensing layer, and the top surface of the stretch-resistant film is a frosted surface.
Through the scheme, the following technical effects can be achieved: the outer lead can be bent at will, so that the flexibility of the dynamic monitoring sensor can be guaranteed, and the conformality of the dynamic monitoring sensor can be met.
Furthermore, the first sensitive pressure sensing layer and the second sensitive pressure sensing layer are respectively provided with four, and the four first sensitive pressure sensing layers and the four second sensitive pressure sensing layers are in one-to-one correspondence.
Through the scheme, the following technical effects can be achieved: the dynamic monitoring sensor overcomes the defects of single-point deformation and high dot matrix cost.
Furthermore, the number of the second leads is four, the four second leads correspond to the four first sensitive pressure sensing layers one by one, the thickness of the latex sleeve and the stretch-proofing film is less than or equal to 0.6mm, the effective sensing range of the first sensitive pressure sensing layers and the effective sensing range of the second sensitive pressure sensing layers are 6 x (18-28) mm, and the extension line is made of flexible materials.
Through the scheme, the following technical effects can be achieved: the four-point monitoring device of the first sensitive pressure sensing layer and the second sensitive pressure sensing layer can completely cover all possible leakage points of the disposable intravenous infusion needle or the disposable intravenous retention needle, so that the dynamic monitoring sensor can meet the requirement of non-leakage detection.
Furtherly, the output joint of public bayonet joint of lightning has the ADC, the output rigid coupling of ADC has the integrated circuit bus, the other end of integrated circuit bus is connected with MCU, MCU's output is connected with the siren of constituteing by bee calling organ and OLED display screen, and MCU's bottom surface rigid coupling has the box bottom, the both ends difference rigid coupling of box bottom has bandage two, and the top surface rigid coupling of box bottom has the picture peg, the box cover has been cup jointed to the surface gomphosis of picture peg, and has seted up the cavity in the lateral wall of picture peg, install the spring on the lateral wall of cavity, the other end rigid coupling of spring has the fixture block, the through-hole has been seted up on the lateral wall of box cover, and the ejector pin has been cup jointed in the slip on the lateral wall of box cover.
Through the scheme, the following technical effects can be achieved: the clamping block is compressed and contracted into the cavity, the spring is extruded, the clamping block is separated from the box sleeve, the clamping block is not fixed with the plug board, the plug board can be moved out of the box sleeve, the box sleeve and the box bottom can be separated, the purpose of facilitating maintenance of the ADC, the integrated circuit bus and the MCU is achieved, maintenance efficiency of the dynamic monitoring sensor is improved, and labor cost can be reduced.
Furthermore, the ejector pin is the dumbbell type setting, the terminal surface of fixture block is the slope cambered surface, and the slope cambered surface is towards the box cover, the surface of picture peg cup joints with the lateral wall gomphosis of box cover.
Furthermore, the ejector rod is in contact connection with the end face of the clamping block, the clamping block is clamped with the side wall of the box sleeve, the inserting plate and the ejector rod are respectively located on the four corners of the box bottom and the four corners of the box sleeve, and the box bottom is in contact connection with the box sleeve.
Through the scheme, the following technical effects can be achieved: the structure is reasonable, and the expected effect is convenient to achieve.
Furthermore, the ADC is used for amplifying signals, the amplification factor can be set between 32 times and 128 times through software, an independent four-channel 24-bit A/D conversion chip is integrated in the ADC, and the through hole is in sliding sleeve connection with the extension line.
Through the scheme, the following technical effects can be achieved: the analog electric signal is amplified and then converted into a digital signal by a 24bit A/D conversion chip for output.
Furthermore, the box cover fixes the box bottom through an inserting plate, a clamping block and a spring.
Further, the OLED display and the alarm are used for giving out sound and light alarms and displaying prompt text messages.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention enables the dynamic monitoring sensor to overcome the defects of single-point deformation and higher dot matrix cost through the four-point monitoring arrangement of the first sensitive pressure sensing layer and the second sensitive pressure sensing layer, simultaneously the four-point monitoring arrangement of the first sensitive pressure sensing layer and the second sensitive pressure sensing layer can completely cover all possible leakage points of a disposable intravenous infusion needle or a disposable venous indwelling needle, so that the dynamic monitoring sensor can meet the requirement of non-leakage detection, the top surface of the stretch-resistant film is covered by the medical adhesive tape, so that the medical adhesive tape fixes the latex sleeve on the skin of a patient, the aim of initially installing the dynamic monitoring sensor is fulfilled, the dynamic monitoring sensor can meet the requirement of conformability, simultaneously the bending variables of the first sensitive pressure sensing layer and the second sensitive pressure sensing layer are lower, so that the dynamic monitoring sensor can meet the requirement of high sensitivity, meanwhile, the electric signal is amplified through the ADC circuit, the electric signal is converted into a digital signal through 24-bit analog-to-digital conversion after being amplified to a certain multiple, so that the dynamic monitoring sensor can meet the requirement on interference resistance, the deformation quantity of the stretch-resistant film is lower through the deformation resistance of the stretch-resistant film, the deformation quantity of the latex sleeve is reduced, the latex sleeve, the first sensitive pressure sensing layer and the second sensitive pressure sensing layer are not easy to damage, the service life of the dynamic monitoring sensor can be prolonged, the dynamic monitoring sensor can meet the requirement on long service life, and the disinfectant cannot penetrate through the waterproof performance of the latex sleeve, so that the first sensitive pressure sensing layer and the second sensitive pressure sensing layer are prevented from being damaged by the disinfectant, and the dynamic monitoring sensor can meet the requirement on toxicity elimination.
2. According to the invention, the end face of the clamping block is extruded by the ejector rod, so that the clamping block is compressed and contracted into the cavity, the spring is extruded, and the clamping block is separated from the box sleeve, so that the clamping block does not fix the plug board any more, the plug board can move out of the box sleeve, the box sleeve can be separated from the box bottom, the purpose of facilitating the overhaul of the ADC, the integrated circuit bus and the MCU is achieved, the overhaul efficiency of the dynamic monitoring sensor is improved, and the labor cost can be reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic diagram of the overall structure of a dynamic monitoring sensor for infusion leakage according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1 of a dynamic monitoring sensor for infusion leakage according to the present invention;
FIG. 3 is an enlarged view of the part B in FIG. 1 of a dynamic monitoring sensor for infusion leakage according to the present invention;
FIG. 4 is an enlarged view of the portion C in FIG. 1 of a dynamic monitoring sensor for infusion leakage according to the present invention;
FIG. 5 is a sectional view of a cassette structure of a dynamic monitoring sensor for infusion leakage according to the present invention;
fig. 6 is a sectional view of a cassette structure of a dynamic monitoring sensor for infusion leakage according to the present invention.
In the figure: 1. a latex sleeve; 2. a stretch resistant film; 3. protruding friction lines; 4. a base film; 5. a first sensitive pressure sensing layer; 6. a second sensitive pressure sensing layer; 7. a first lead; 8. a second conducting wire; 9. an extension line; 10. an outer lead; 11. fixing a sleeve; 12. binding a first belt; 13. a burling cloth; 14. a soft felt; 15. a lightning male plug-in connector; 16. an ADC; 17. an integrated circuit bus; 18. MCU; 19. an alarm; 20. a box bottom; 21. a second binding band; 22. inserting plates; 23. a box sleeve; 24. a cavity; 25. a spring; 26. a clamping block; 27. a top rod; 28. and a through hole.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Example 1:
referring to fig. 1-3, the present invention provides a technical solution: a dynamic monitoring sensor for infusion leakage comprises a latex sleeve 1, wherein a top surface of the latex sleeve 1 is fixedly connected with a stretch-proof membrane 2, the top surface of the end part of the stretch-proof membrane 2 is provided with raised friction grains 3, the inner surface of the latex sleeve 1 is fixedly connected with a base membrane 4, the inner top surface and the inner bottom surface of the base membrane 4 are respectively fixedly connected with a first sensitive pressure sensing layer 5 and a second sensitive pressure sensing layer 6, the second sensitive pressure sensing layers 6 are connected with each other through a first lead 7, the top surface of the first sensitive pressure sensing layer 5 is fixedly connected with a second lead 8, the side wall of the latex sleeve 1 is fixedly connected with an extension line 9, an outer lead 10 is printed in the extension line 9, the outer surface of the extension line 9 is fixedly connected with a fixing sleeve 11, two ends of the fixing sleeve 11 are respectively and fixedly connected with a first binding belt 12, two ends of the first binding belt 12 are respectively connected with a burl cloth 13 and a lightning soft cloth 14, and the end surface of the extension line 9 is provided with a male plug 15, the first lead 7 and the second lead 8 are both connected with the outer lead 10, the outer lead 10 is made of ultra-soft pure silver through printing by a printing machine, the first sensitive pressure sensing layer 5 is in contact connection with the second sensitive pressure sensing layer 6, the top surface of the stretch-resistant film 2 is a frosted surface, the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 are respectively provided with four, the four first sensitive pressure sensing layers 5 are in one-to-one correspondence with the four second sensitive pressure sensing layers 6, the four second leads 8 are in one-to-one correspondence with the four first sensitive pressure sensing layers 5, the thickness of the latex sleeve 1 and the stretch-resistant film 2 is smaller than or equal to 0.6mm, the effective sensing ranges of the first sensitive pressure sensing layers 5 and the second sensitive pressure sensing layers 6 are 6 x (18 x-28) mm, and the extension line 9 is made of a flexible material.
Specifically, when the dynamic monitoring sensor is used, because of the four-point monitoring arrangement of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6, the dynamic monitoring sensor overcomes the defect of single-point deformation and the problem of high dot array cost, meanwhile, the four-point monitoring arrangement of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 can completely cover all possible leakage points of a disposable intravenous infusion needle or a disposable venous indwelling needle, so that the dynamic monitoring sensor can meet the requirement of non-omission, the top surface of the stretch-resistant film 2 is covered by the medical adhesive tape, so that the latex sleeve 1 is fixed on the skin of a patient by the medical adhesive tape, the purpose of primarily installing the dynamic monitoring sensor is achieved, the dynamic monitoring sensor can meet the requirement of conformality, meanwhile, the bending variable of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 is low, so that the dynamic monitoring sensor can meet the requirement of high sensitivity, the first 12 on the fixed sleeve 11 surrounds the arm of the patient, and the felt 13 and the soft felt 14 on the arm are adhered to each other, so that the two ends of the first sensitive pressure sensing layer 12 are connected, thereby further reducing the possibility of fixing the first sensitive sensing layer 1 and fixing the latex sleeve 11, and further reducing the requirement of fixing the dynamic monitoring sensor, and fixing the possibility of fixing the latex sleeve 1 of fixing the flexible pressure sensing layer 1 and the flexible sensing layer 1, and the flexible sensing layer 1;
if a patient leaks during intravenous infusion, when the leakage amount reaches 0.2 ml, the leaked liquid (medicine) can cause the skin surface of the patient to swell, the bottom surface of the latex sleeve 1 is further pressed, so that the bottom surface of the latex sleeve 1 presses the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 through the base film 4, the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 generate electric signals, the electric signals are transmitted into the outer lead 10 through the first lead 7 and the second lead 8, finally the electric signals are transmitted to the ADC16 through the lightning male plug connector 15 and are amplified through a circuit inside the ADC16, the electric signals are amplified to a certain multiple and then transmitted into a 24-bit A/D conversion circuit inside the ADC16, the electric signals are converted into digital signals, the digital signals are transmitted to the MCU18 through the integrated circuit bus 17, and the MCU18 processes the digital signals, and sends a start command to the OLED display and the alarm 19, so that the OLED display and the alarm 19 send sound and light alarms and text prompt messages to remind medical personnel and patients of the phenomenon of infusion leakage, and through the signal sensing, amplifying, processing and controlling processes, the dynamic monitoring sensor can meet the requirement of anti-interference performance, when the patient completes infusion, the medical personnel pinches one end of the stretch-resistant film 2 with the raised friction lines 3 and then tears the medical adhesive tape from the stretch-resistant film 2, in the process, along with the tearing of the medical adhesive tape, the deformation performance of the stretch-resistant film 2 is enabled to be lower by the deformation resistance of the stretch-resistant film 2, so that the deformation performance of the latex sleeve 1 is reduced, the latex sleeve 1, the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 are not easy to damage, and the service life of the dynamic monitoring sensor can be prolonged, make the dynamic monitoring sensor can satisfy the demand of long-life nature, the rethread antiseptic solution is disinfected the sensor, because of emulsion cover 1 has waterproof performance, make the antiseptic solution can't get into its inside and pass base film 4, thereby can avoid sensitive pressure sensing layer one 5 and sensitive pressure sensing layer two 6 to be damaged by the antiseptic solution, make the dynamic monitoring sensor can satisfy the demand that can disinfect.
Example 2:
referring to fig. 1, 4-6, the present invention provides a technical solution: a dynamic monitoring sensor for infusion seepage is characterized in that an ADC16 is clamped at the output end of a lightning male plug-in connector 15, an integrated circuit bus 17 is fixedly connected at the output end of the ADC16, an MCU18 is connected at the other end of the integrated circuit bus 17, an alarm 19 consisting of a buzzer and an OLED display screen is connected at the output end of the MCU18, a box bottom 20 is fixedly connected at the bottom surface of the MCU18, two binding bands 21 are respectively fixedly connected at two ends of the box bottom 20, an inserting plate 22 is fixedly connected at the top surface of the box bottom 20, a box sleeve 23 is sleeved on the outer surface of the inserting plate 22 in an embedded manner, a cavity 24 is formed in the side wall of the inserting plate 22, a spring 25 is installed on the side wall of the cavity 24, and a clamping block 26 is fixedly connected at the other end of the spring 25, the side wall of the box sleeve 23 is provided with a through hole 28, the side wall of the box sleeve 23 is sleeved with a mandril 27 in a sliding mode, the mandril 27 is arranged in a dumbbell shape, the end face of the clamping block 26 is an inclined arc face, the inclined arc face faces the box sleeve 23, the outer surface of the plug plate 22 is sleeved with the side wall of the box sleeve 23 in an embedded mode, the mandril 27 is connected with the end face of the clamping block 26 in a contact mode, the clamping block 26 is clamped with the side wall of the box sleeve 23, the plug plate 22 and the mandril 27 are respectively displaced on the four corners of the box bottom 20 and the box sleeve 23, the box bottom 20 is connected with the box sleeve 23 in a contact mode, the through hole 28 is sleeved with the extension line 9 in a sliding mode, the box sleeve 23 fixes the box bottom 20 through the plug plate 22, the clamping block 26 and the spring 25, and the alarm 19 is used for giving out sound and light alarms and prompting text information.
Specifically, at the in-process of dismantling box bottom 20 and box cover 23, push down ejector pin 27 on the box cover 23 four corners, make ejector pin 27 extrude the terminal surface of fixture block 26, make fixture block 26 pressurized shrink to in the cavity 24, and extrude spring 25, make fixture block 26 and box cover 23 separation, thereby make fixture block 26 no longer fixed picture peg 22, thereby make picture peg 22 can move out box cover 23, thereby can accomplish the separation of box cover 23 and box bottom 20, reach the ADC16 of being convenient for, integrated circuit bus 17 and MCU18 purpose of overhauing, make the maintenance efficiency of dynamic monitoring sensor improve, thereby can reduce the cost of labor.
The working principle and the using process of the invention are as follows: when a patient needs to dynamically monitor liquid leakage in venous transfusion, the dynamic monitoring sensor overcomes the defects of single-point deformation and high dot matrix cost due to four-point monitoring arrangement of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6, all possible leakage points of a disposable venous transfusion needle or a disposable venous indwelling needle can be completely covered by the four-point monitoring arrangement of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6, the dynamic monitoring sensor can meet the requirement of non-leakage detection, the top surface of the stretch-resistant film 2 is covered by the medical adhesive tape, the medical adhesive tape is used for fixing the latex sleeve 1 on the skin of the patient, the purpose of primarily installing the dynamic monitoring sensor is achieved, the dynamic monitoring sensor can meet the requirement of conformality, and meanwhile, the bending variables of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 are low, the dynamic monitoring sensor can meet the requirement of high sensitivity, the first binding band 12 on the first binding band 11 surrounds the arm of the patient, the first burr cloth 13 on the first binding band 12 and the soft fur cloth 14 are adhered to each other, two ends of the first binding band 12 are connected, the first binding band 12 is tightly attached to the arm of the patient, the fixing sleeve 11 is further fixed, the length of the extension line 9 from the fixing sleeve 11 to the latex sleeve 1 is fixed, the relative position of the fixing sleeve 11 and the latex sleeve 1 is fixed, the latex sleeve 1 is further prevented from being pulled by the extension line 9, the pressure between the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 in the latex sleeve 1 and the skin is stable, the probability of misinformation of the dynamic monitoring sensor is reduced, and the requirements of high sensitivity and adaptability of the dynamic monitoring sensor are further met;
if a patient is in the process of intravenous infusion and when infusion leakage occurs, when the leakage amount reaches 0.2 ml, the leaked liquid (medicine) can cause the skin surface of the patient to swell, the bottom surface of the latex sleeve 1 is further pressed, so that the bottom surface of the latex sleeve 1 presses the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 through the base film 4, the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 generate electric signals, the electric signals are transmitted into the outer lead 10 through the first lead 7 and the second lead 8, finally the electric signals are transmitted to the ADC16 through the lightning male plug connector 15 and are amplified through a circuit inside the ADC16, the electric signals are amplified to a certain multiple and then transmitted into a 24bit A/D converter inside the ADC16, the electric signals are converted into digital signals, the digital signals are transmitted to the MCU18 through the integrated circuit bus 17, the digital signals are processed by the MCU18, a starting command is sent to the OLED display and the alarm 19, the OLED display and the alarm 19 send out acousto-optic alarm and further remind personnel of the occurrence of leakage and the phenomenon of the leakage, so that the leakage can be monitored and the anti-interference monitoring process of the infusion can be realized through the above-interference sensor and the infusion sensor;
when the patient infusion is completed, medical personnel pinches one end of the stretch-resistant film 2 with the protruding friction lines 3, the medical adhesive tape is torn from the stretch-resistant film 2, in the process, along with the tearing of the medical adhesive tape, the deformation of the stretch-resistant film 2 is low due to the deformation resistance of the stretch-resistant film 2, the deformation of the latex sleeve 1 is reduced, the latex sleeve 1 is made to be not easy to damage, the service life of the dynamic monitoring sensor can be prolonged, the dynamic monitoring sensor can meet the requirement of long service life, the sensor is disinfected by the disinfection solution, the latex sleeve 1 has waterproof performance, the disinfection solution cannot enter the interior of the latex sleeve and penetrate through the base film 4, the situation that the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 are damaged by the disinfection solution can be avoided, the dynamic monitoring sensor can meet the requirement of toxicity elimination, and the operation is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides an infusion seepage dynamic monitoring sensor, includes emulsion cover (1), its characterized in that, the top surface rigid coupling of emulsion cover (1) has stretch-proofing membrane (2), the tip top surface of stretch-proofing membrane (2) is provided with protruding friction line (3), and the internal surface rigid coupling of emulsion cover (1) has base film (4), the interior top surface and the interior bottom surface of base film (4) rigid coupling respectively have sensitive pressure sensing layer one (5) and sensitive pressure sensing layer two (6), through wire one (7) interconnect between sensitive pressure sensing layer two (6), the equal rigid coupling of top surface of sensitive pressure sensing layer one (5) has wire two (8), and the rigid coupling has extension line (9) on the lateral wall of emulsion cover (1), the printing has outer lead (10) in extension line (9), and the outer surface rigid coupling of extension line (9) has fixed cover (11), the equal rigid coupling in both ends of fixed cover (11) has one (12), the both ends of one (12) are threaded respectively and are connect bandage (13) and soft nappe (14), and the public joint (15) are installed to lightning.
2. The dynamic monitoring sensor for the infusion leakage according to claim 1, wherein the first lead (7) and the second lead (8) are both connected with an outer lead (10), the outer lead (10) is made of ultra-soft pure silver through printing by a printing machine, the first sensitive pressure sensing layer (5) and the second sensitive pressure sensing layer (6) are in contact connection, and the top surface of the stretch-resistant film (2) is a frosted surface.
3. The dynamic monitoring sensor for infusion leakage according to claim 1, wherein four first sensitive pressure sensing layers (5) and four second sensitive pressure sensing layers (6) are respectively arranged, and the four first sensitive pressure sensing layers (5) and the four second sensitive pressure sensing layers (6) are in one-to-one correspondence.
4. The dynamic monitoring sensor for the infusion leakage according to claim 1, characterized in that four leads two (8) are provided, and four leads two (8) correspond to four sensitive pressure sensing layers one (5) one by one, the thickness of the latex sleeve (1) and the stretch-proof membrane (2) is less than or equal to 0.6mm, the effective sensing range of the sensitive pressure sensing layers one (5) and two (6) is 6 x (18-28) mm, and the extension line (9) is made of flexible material.
5. The dynamic monitoring sensor for infusion leakage as claimed in claim 1, wherein the output end of the lightning male plug connector (15) is connected with an ADC (16), the output end of the ADC (16) is fixedly connected with an integrated circuit bus (17), the other end of the integrated circuit bus (17) is connected with an MCU (18), the output end of the MCU (18) is connected with an alarm (19) consisting of a buzzer and an OLED display screen, the bottom surface of the MCU (18) is fixedly connected with a box bottom (20), two ends of the box bottom (20) are respectively and fixedly connected with two binding bands (21), the top surface of the box bottom (20) is fixedly connected with a plug board (22), the outer surface of the plug board (22) is embedded with a box sleeve (23), a cavity (24) is formed in the side wall of the plug board (22), a spring (25) is installed on the side wall of the cavity (24), the other end of the spring (25) is fixedly connected with a clamping block (26), a through hole (28) is formed in the side wall of the box sleeve (23), and a push rod (27) is sleeved on the side wall of the box sleeve (23) in a sliding manner.
6. The dynamic monitoring sensor for infusion leakage according to claim 5, characterized in that the ejector rod (27) is disposed in a dumbbell shape, the end face of the clamping block (26) is an inclined arc face facing the case cover (23), and the outer surface of the insertion plate (22) is embedded and sleeved with the side wall of the case cover (23).
7. The dynamic monitoring sensor for infusion leakage according to claim 5, characterized in that the ejector rod (27) is in contact connection with the end face of a clamping block (26), the clamping block (26) is clamped with the side wall of the cassette sleeve (23), the inserting plate (22) and the ejector rod (27) are respectively positioned on the four corners of the cassette bottom (20) and the cassette sleeve (23), and the cassette bottom (20) and the cassette sleeve (23) are in contact connection.
8. The dynamic monitoring sensor for infusion leakage according to claim 5, characterized in that a separate four-channel 24-bit A/D conversion chip is integrated in the ADC (16), the ADC (16) is used for amplifying signals, the amplification factor can be set between 32-128 times through software, and the through hole (28) is slidably sleeved with the extension line (9).
9. The dynamic monitoring sensor for infusion leakage according to claim 5, wherein the cassette cover (23) is fixed on the cassette bottom (20) through an inserting plate (22), a clamping block (26) and a spring (25).
10. The dynamic infusion leakage monitoring sensor according to claim 5, wherein the OLED display and the alarm (19) are used for prompting text messages and giving out audible and visual alarms respectively.
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| CN202211067895.1A CN115252964B (en) | 2022-09-01 | 2022-09-01 | Infusion leakage dynamic monitoring sensor |
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| CN115252964B (en) | 2023-06-16 |
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