CN115252964B - Infusion leakage dynamic monitoring sensor - Google Patents
Infusion leakage dynamic monitoring sensor Download PDFInfo
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- CN115252964B CN115252964B CN202211067895.1A CN202211067895A CN115252964B CN 115252964 B CN115252964 B CN 115252964B CN 202211067895 A CN202211067895 A CN 202211067895A CN 115252964 B CN115252964 B CN 115252964B
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- pressure sensing
- sensitive pressure
- sleeve
- sensing layer
- 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
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 stretching-resistant film is fixedly connected to the top surface of the latex sleeve, raised friction lines are arranged on the top surface of the end part of the stretching-resistant film, a base film is fixedly connected to the inner surface of the latex sleeve, a sensitive pressure sensing layer I and a sensitive pressure sensing layer II are fixedly connected to the inner top surface and the inner bottom surface of the base film respectively, the sensitive pressure sensing layers II are connected with each other through a lead I, a lead II is fixedly connected to the top surface of the sensitive pressure sensing layer I, 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 transfusion is an important clinical administration way, can maintain the balance of water, electrolyte and acid and alkali in a human body, can maintain the stability of an internal environment, can supplement nutrition and treat diseases, has a history of hundreds of years because the clinical intravenous transfusion technology is applied to the clinic, is the most commonly used clinical technical operation nowadays because of direct and quick effect, has a very wide clinical application range, is seen from a neonate to an old person, is in emergency treatment to hospitalization, is in a treatment to examination everywhere, has an average transfusion rate of 73.35 percent for hospitalized patients, has medicine leakage in the intravenous transfusion process which is the medicine entering surrounding tissues rather than entering normal vascular passages, further causes damages of different degrees, has become a common nursing problem clinically caused by medicine extravasation due to various factors, has a clinical intravenous transfusion leakage rate of about 17.8 percent, has a child leakage rate of up to 63 percent, has not timely taken measures for the infusion, has a slight local skin color change, swelling and severe pain and even has a local necrosis and tissue injury caused by severe pain, and has a certain injury and even has a deep tissue injury.
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 contrast agent and medicine extravasation, the operation is more convenient, but its sensor can't satisfy the demand of conformality, can eliminate toxicity, high sensitivity, interference immunity, long-life and non-omission detection nature, and the box cover dismantlement of dynamic monitoring sensor is comparatively complicated for ADC, integrated circuit bus and the MCU maintenance efficiency in the box cover are lower, have 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 above purpose, the present invention adopts the following technical scheme:
the utility model provides an infusion seepage dynamic monitoring sensor, includes the latex sleeve, the top surface rigid coupling of latex sleeve has stretch-proofing membrane, stretch-proofing membrane's tip top surface is provided with protruding friction line, and the internal surface rigid coupling of latex sleeve has the base film, the interior top surface and the interior bottom surface of base film have sensitive pressure sensing layer one and sensitive pressure sensing layer two respectively the rigid coupling, interconnect through wire one between the sensitive pressure sensing layer two, the top surface of sensitive pressure sensing layer one all rigid coupling has wire two, and the rigid coupling has the extension line on the lateral wall of latex sleeve, the printing has the outer lead in the extension line, and the surface rigid coupling of extension line has fixed cover, the both ends of fixed cover all rigid coupling has the bandage one, the both ends of bandage one have connect thorn felt and soft felt respectively, and install lightning male plug on the terminal surface of extension line.
Further, the first lead and the second lead are both connected with an outer lead, the outer lead is made of ultra-soft pure silver through printing by a printer, the first sensitive pressure sensing layer is in contact connection with the second sensitive pressure sensing layer, and the top surface of the stretch-proof 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 softness of the dynamic monitoring sensor can be guaranteed, and the conformality of the dynamic monitoring sensor can be met.
Further, 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 the problem of high lattice cost.
Further, the number of the second conducting wires is four, the number of the second conducting wires corresponds to the number of the first sensitive pressure sensing layers, the thickness of the latex sleeve and the stretching resistant film is smaller than or equal to 0.6mm, the effective sensing range of the first sensitive pressure sensing layers and the second sensitive pressure sensing layers is 6X (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 arrangement 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 no-omission detection.
Further, the output joint of lightning male connector has 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 that comprises bee calling organ and OLED display screen, and MCU's bottom surface rigid coupling has the box bottom, the both ends of box bottom have the bandage two respectively rigid couplings, and the top surface rigid coupling of box bottom has the picture peg, the surface gomphosis of picture peg has cup jointed the box cover, 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 slided to cup joint on the lateral wall of box cover.
Through the scheme, the following technical effects can be achieved: the clamping block is pressed 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 inserting plate any more, the inserting plate can be moved out of the box sleeve, the box sleeve and the box bottom can be separated, the purposes of facilitating maintenance of the ADC, the integrated circuit bus and the MCU are achieved, the maintenance efficiency of the dynamic monitoring sensor is improved, and the labor cost can be reduced.
Further, the ejector rod is in a dumbbell-shaped arrangement, the end face of the clamping block is an inclined cambered surface, the inclined cambered surface faces the box sleeve, and the outer surface of the plugboard is embedded and sleeved with the side wall of the box sleeve.
Further, the ejector rod is connected with the end face of the clamping block in a contact manner, the clamping block is connected with the side wall of the box sleeve in a clamping manner, the inserting plate and the ejector rod are respectively located at four corners of the box bottom and the box sleeve, and the box bottom is connected with the box sleeve in a contact manner.
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 32-128 times through software, an independent four-channel 24bit A/D conversion chip is integrated in the ADC, and the through hole is in sliding sleeve joint 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 to be output.
Further, the box sleeve is used for fixing the box bottom through the inserting plate, the clamping block and the spring.
Further, the OLED display and the alarm are used for emitting sound and light alarm and displaying prompt text information.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the four-point monitoring arrangement of the first sensitive pressure sensing layer and the second sensitive pressure sensing layer, the defect of single-point deformation and the problem of high lattice cost are overcome, meanwhile, 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 the disposable intravenous infusion needle or the disposable intravenous retention needle, the dynamic monitoring sensor can meet the requirement of non-detection, the medical adhesive tape is used for covering the top surface of the stretch-proof film, the medical adhesive tape can fix the latex sleeve on the skin of a patient, the purpose of initially installing the dynamic monitoring sensor is achieved, the bending deformation quantity of the first sensitive pressure sensing layer and the second sensitive pressure sensing layer is low, the dynamic monitoring sensor can meet the requirement of high sensitivity, and the ADC circuit can amplify an electric signal, so that the electric signal can be converted into a digital signal through 24bit analog-digital conversion after being amplified to a certain multiple, the dynamic monitoring sensor can meet the requirement of non-detection, the first anti-interference film can further cover the dynamic monitoring sensor, the first dynamic pressure sensing layer and the second sensitive pressure sensing layer are lower in bending deformation quantity, the second dynamic monitoring sensor can be prevented from being damaged by the first sensitive pressure sensing layer, the second dynamic pressure sensing layer is prevented from being damaged by the dynamic pressure sensing layer, and the second dynamic pressure sensing layer can not be damaged by the dynamic pressure sensing layer, and the dynamic monitoring sensor can be prevented from being damaged by the deformation layer.
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, and the spring is extruded, so that the clamping block is separated from the box sleeve, the inserting plate is not fixed any more, the inserting plate can be moved out of the box sleeve, the separation of the box sleeve from the box bottom can be completed, the purposes of facilitating the overhaul of the ADC, the integrated circuit bus and the MCU are achieved, the overhaul efficiency of the dynamic monitoring sensor is improved, and the labor cost can be reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
FIG. 1 is a schematic diagram of the overall structure of a dynamic infusion leakage monitoring sensor according to the present invention;
FIG. 2 is an enlarged view of part A of the sensor for dynamically monitoring infusion leakage in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the portion B of the sensor of FIG. 1;
FIG. 4 is an enlarged view of the portion C of FIG. 1 of an infusion leakage dynamic monitoring sensor according to the present invention;
FIG. 5 is a cross-sectional view of a cassette structure of a dynamic infusion leakage monitoring sensor according to the present invention;
fig. 6 is a cross-sectional view of a box sleeve structure of a dynamic infusion leakage monitoring sensor according to the present invention.
In the figure: 1. a latex sleeve; 2. a stretch resistant film; 3. raised friction lines; 4. a base film; 5. a sensitive pressure sensing layer I; 6. a second sensitive pressure sensing layer; 7. a first conducting wire; 8. a second conducting wire; 9. an extension line; 10. an outer lead; 11. a fixed sleeve; 12. a first binding band; 13. a piece of barbed wool cloth; 14. a soft felt; 15. a lightning male plug; 16. an ADC; 17. an integrated circuit bus; 18. an MCU; 19. an alarm; 20. a box bottom; 21. a second binding band; 22. inserting plate; 23. a box sleeve; 24. a cavity; 25. a spring; 26. a clamping block; 27. a push rod; 28. and a through hole.
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.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not 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 the top surface of the latex sleeve 1 is fixedly connected with a stretch-proof film 2, the top surface of the end part of the stretch-proof film 2 is provided with a convex friction line 3, the inner surface of the latex sleeve 1 is fixedly connected with a base film 4, the inner top surface and the inner bottom surface of the base film 4 are respectively fixedly connected with a sensitive pressure sensing layer I5 and a sensitive pressure sensing layer II 6, the sensitive pressure sensing layers II 6 are mutually connected through a lead I7, the top surface of the sensitive pressure sensing layer I5 is fixedly connected with a lead II 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 fixedly connected with a binding belt I12, two ends of the binding belt I12 are respectively connected with a bristle 13 and a soft bristle 14, and a lightning male plug 15 is arranged on the end surface of the extension line 9, the first lead wire 7 and the second lead wire 8 are connected with the outer lead wire 10, the outer lead wire 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, the top surface of the stretch-proofing 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 first four sensitive pressure sensing layers 5 and the second four sensitive pressure sensing layers 6 are in one-to-one correspondence, the second lead wire 8 is provided with four, the second four lead wires 8 are in one-to-one correspondence with the first four sensitive pressure sensing layers 5, the thickness of the latex sleeve 1 and the stretch-proofing film 2 is less than or equal to 0.6mm, the effective sensing range of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 is 6X (18-28 mm), and the extension line 9 is made of flexible materials.
Specifically, when the dynamic monitoring sensor is used, the four-point monitoring arrangement of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 enables the dynamic monitoring sensor to overcome the defect of single-point deformation and the problem of higher lattice 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 the disposable intravenous infusion needle or the disposable intravenous retention needle, the dynamic monitoring sensor can meet the requirement of non-detection performance, the medical adhesive tape is used for covering the top surface of the stretch film 2, the medical adhesive tape is used for fixing the latex sleeve 1 on the skin of a patient, the purpose of primarily installing the dynamic monitoring sensor is achieved, the dynamic monitoring sensor can meet the requirement of conformability, meanwhile, the bending deformation quantity of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 is lower, the dynamic monitoring sensor can meet the requirement of high sensitivity, the binding band 12 on the fixing sleeve 11 surrounds the arm of the patient, the first soft cloth 13 and the soft cloth 14 on the first 12 can meet the requirement of non-detection performance, the medical adhesive tape is used for covering the top surface of the latex sleeve 1 on the skin of the patient, the latex sleeve 1 is further fixed on the latex sleeve 1, the latex sleeve is fixed on the two ends of the latex sleeve is further, the latex sleeve is fixed on the latex sleeve 1, and the latex sleeve is further fixed on the latex sleeve is connected with the latex sleeve 1, and the latex sleeve is further stable, and the latex sleeve is connected with the latex sleeve 1, and the latex sleeve is further at the two ends of the requirements are stable, and the latex sleeve is at the high requirements;
if the patient is in the process of intravenous transfusion, when the seepage amount reaches 0.2 milliliter, the leaked liquid (medicine) can cause the surface of the skin of the patient to bulge, and further the bottom surface of the latex sleeve 1 is extruded, so that the bottom surface of the latex sleeve 1 is extruded with 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 conveyed into the outer lead 10 through the first lead 7 and the second lead 8, finally the electric signals are conveyed into the ADC16 through the lightning male plug 15, then the electric signals are amplified through a circuit in the ADC16, the electric signals are conveyed into a 24bit A/D conversion circuit in the ADC16 after being amplified to a certain multiple, the digital signals are transmitted to the MCU18 through the integrated circuit bus 17, the digital signals are processed by the MCU18, and sends a start command to the OLED display and the alarm 19, so that the OLED display and the alarm 19 send out audible and visual alarm and text prompt information, thereby reminding medical staff and patients of infusion leakage, and the dynamic monitoring sensor can meet the demand of anti-interference performance through the signal sensing, amplifying, processing and controlling processes, when the infusion of the patients is finished, the medical staff pinches one end of the stretch-proof film 2 with the convex friction lines 3, and then tears the medical adhesive tape from the stretch-proof film 2, in the process, along with the tearing of the medical adhesive tape, the deformation resistance of the stretch-proof film 2 per se leads the deformation quantity of the stretch-proof film 2 to be lower, thereby reducing the deformation quantity of the latex sleeve 1, leading the latex sleeve 1, the sensitive pressure sensing layer 5 and the sensitive pressure sensing layer 6 not to be easy to damage, thereby prolonging the service life of the dynamic monitoring sensor, the dynamic monitoring sensor can meet the requirement of long service life, the sensor is sterilized by the sterilizing liquid, and the latex sleeve 1 has waterproof performance, so that the sterilizing liquid cannot enter the latex sleeve and pass through the base film 4, and the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 can be prevented from being damaged by the sterilizing liquid, so that the dynamic monitoring sensor can meet the requirement of being sterilizable.
Example 2:
referring to fig. 1 and fig. 4-6, the present invention provides a technical solution: the utility model provides an infusion seepage dynamic monitoring sensor, the output joint of lightning male connector 15 has ADC16, the output rigid coupling of ADC16 has integrated circuit bus 17, the other end of integrated circuit bus 17 is connected with MCU18, MCU 18's output is connected with the siren 19 that comprises bee calling organ and OLED display screen, and MCU 18's bottom surface rigid coupling has box bottom 20, the both ends of box bottom 20 have the bandage two 21 respectively rigid coupling, and the top surface rigid coupling of box bottom 20 has picture peg 22, the outer surface gomphosis of picture peg 22 has cup jointed box cover 23, and seted up cavity 24 in the lateral wall of picture peg 22, install spring 25 on the lateral wall of cavity 24, the other end rigid coupling of spring 25 has fixture block 26, through-hole 28 has been seted up on the lateral wall of box cover 23, and slide cup joint ejector pin 27 on the lateral wall of box cover 23, ejector pin 27 is dumbbell-shaped setting, the terminal surface of fixture block 26 is the slope cambered surface, and slope cambered surface towards box cover 23, the lateral wall gomphosis of picture peg 22 and box cover 23, ejector pin 27 and fixture block 26's terminal surface contact connection, fixture block 26 and box cover 23's lateral wall joint, 22 and box bottom 20 and 20 are moved respectively to the bottom 20 and 20, the extension line of box bottom 20 and 20 are connected through the extension line of box bottom 20, the sound and the extension line of extension of box 25 are fixed to the slip, the warning message is cup jointed to the box 20, the extension line is used for the bottom of the box, the extension of the box is connected to the extension of the box to the top of the box, the extension of the bottom of the box is used for the extension, and the bottom of the extension of the box.
Specifically, in the process of disassembling the box bottom 20 and the box cover 23, the ejector rods 27 on four corners of the box cover 23 are pressed, so that the ejector rods 27 extrude the end faces of the clamping blocks 26, the clamping blocks 26 are compressed and contracted into the cavity 24, and the springs 25 are extruded, so that the clamping blocks 26 are separated from the box cover 23, the clamping blocks 26 are not fixed with the inserting plate 22 any more, the inserting plate 22 can move out of the box cover 23, the separation of the box cover 23 and the box bottom 20 can be completed, the purposes of facilitating maintenance of the ADC16, the integrated circuit bus 17 and the MCU18 are achieved, the maintenance efficiency of the dynamic monitoring sensor is improved, and the labor cost can be reduced.
The working principle and the using flow of the invention are as follows: when a patient needs to dynamically monitor liquid leakage in intravenous infusion, the four-point monitoring arrangement of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 overcomes the defects of single-point deformation and the problem of high lattice 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 the disposable intravenous infusion needle or the disposable intravenous retention needle, so that the dynamic monitoring sensor can meet the requirement of non-detection, the medical adhesive tape is used for covering the top surface of the stretch-proof film 2, the medical adhesive tape is used for fixing the latex sleeve 1 on the skin of the patient, the purpose of initially installing the dynamic monitoring sensor is achieved, the dynamic monitoring sensor can meet the requirement of conformability, meanwhile, the bending deformation quantity of the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 is lower, so that the dynamic monitoring sensor can meet the requirement of high sensitivity, the first binding band 12 on the first fixing sleeve 11 surrounds the arm of a patient, the tarpaulin 13 and the soft tarpaulin 14 on the first binding band 12 are adhered to each other, the 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 an extension line 9 between the fixing sleeve 11 and the latex sleeve 1 is fixed, the fixing sleeve 11 and the latex sleeve 1 are fixed in relative position, the extension line 9 is prevented from tearing the latex sleeve 1, the pressure between the first sensitive pressure sensing layer 5 and the second sensitive pressure sensing layer 6 in the latex sleeve 1 is stable, the false alarm probability of the dynamic monitoring sensor is reduced, and the requirement of high sensitivity and conformality of the dynamic monitoring sensor is further met;
if the patient is in the process of intravenous transfusion, when the leakage amount reaches 0.2 milliliter, the leaked liquid (medicine) can cause the skin surface of the patient to bulge, and further extrudes the bottom surface of the latex sleeve 1, so that the bottom surface of the latex sleeve 1 extrudes the sensitive pressure sensing layer I5 and the sensitive pressure sensing layer II 6 through the base film 4, the sensitive pressure sensing layer I5 and the sensitive pressure sensing layer II 6 generate electric signals, the electric signals are conveyed into the outer lead 10 through the lead I7 and the lead II 8, finally the electric signals are conveyed to the ADC16 through the lightning male plug 15, then the electric signals are amplified through a circuit in the ADC16, the electric signals are conveyed into a 24bit A/D converter in the ADC16 after being amplified to a certain multiple, the digital signals are transmitted to the MCU18 through the integrated circuit bus 17, the digital signals are processed by the MCU18, and a starting command is sent to the OLED display and the alarm 19, so that the OLED display and the alarm 19 send out acousto-optic alarm and text prompt information, and further prompt medical staff and the patient to take place the leakage, and the sensor and the processing and the anti-interference performance can meet the requirements of the dynamic sensing and the processing and the monitoring process;
when the transfusion of a patient is finished, medical staff is pinched one end of the stretch-resistant film 2 with the protruding friction lines 3, then the medical adhesive tape is torn off from the stretch-resistant film 2, in the process, along with the tearing of the medical adhesive tape, the deformation resistance of the stretch-resistant film 2 is lower, so that the deformation of the latex sleeve 1 is reduced, the latex sleeve 1, the sensitive pressure sensing layer I5 and the sensitive pressure sensing layer II 6 are 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 can be disinfected by the disinfectant, and the disinfectant cannot enter the latex sleeve 1 and penetrate through the base film 4 due to the waterproof performance of the latex sleeve 1, so that the sensitive pressure sensing layer I5 and the sensitive pressure sensing layer II 6 can be prevented from being damaged by the disinfectant, the dynamic monitoring sensor can meet the requirement of being detoxified, and the operation is finished.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides an infusion seepage dynamic monitoring sensor, includes latex sleeve (1), its characterized in that, the top surface rigid coupling of latex sleeve (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 latex sleeve (1) has base film (4), the interior top surface and the interior bottom surface of base film (4) have sensitive pressure sensing layer one (5) and sensitive pressure sensing layer two (6) to be fixedly connected respectively, connect through wire one (7) interconnect between sensitive pressure sensing layer two (6), the top surface of sensitive pressure sensing layer one (5) all rigid coupling has wire two (8), and the rigid coupling has extension line (9) on the lateral wall of latex sleeve (1), printing has outer lead (10) in extension line (9), and the surface rigid coupling of extension line (9) has fixed cover (11), the both ends of fixed cover (11) all are fixedly connected with bandage one (12), the both ends of bandage one (12) have been threaded burr (13) and soft cloth (14) respectively, and have lightning bolt (15) on extension line (9) are installed.
2. The dynamic infusion leakage monitoring sensor according to claim 1, wherein the first lead (7) and the second lead (8) are connected with an outer lead (10), the outer lead (10) is made of ultra-soft pure silver through printing by a printer, 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 the first sensitive pressure sensing layer (5) and the second sensitive pressure sensing layer (6) are respectively provided with four, 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 infusion leakage monitoring sensor according to claim 1, wherein four conducting wires II (8) are arranged, the four conducting wires II (8) are in one-to-one correspondence with four sensitive pressure sensing layers I (5), the thickness of the latex sleeve (1) and the stretch-resistant film (2) is less than or equal to 0.6mm, the effective sensing range of the sensitive pressure sensing layers I (5) and II (6) is 6 x (18-28 mm), and the extension line (9) is made of flexible materials.
5. The infusion leakage dynamic monitoring sensor according to claim 1, wherein the output end of the lightning male plug connector (15) is clamped 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 fixedly connected with a binding belt II (21) respectively, 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 mounted 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, wherein the ejector rod (27) is arranged in a dumbbell shape, the end face of the clamping block (26) is an inclined cambered surface, the inclined cambered surface faces the box sleeve (23), and the outer surface of the insertion plate (22) is embedded and sleeved with the side wall of the box sleeve (23).
7. The infusion leakage dynamic monitoring sensor according to claim 5, wherein the ejector rod (27) is in contact connection with the end face of the clamping block (26), the clamping block (26) is in clamping connection with the side wall of the box sleeve (23), the insertion plate (22) and the ejector rod (27) are respectively located on four corners of the box bottom (20) and the box sleeve (23), and the box bottom (20) is in contact connection with the box sleeve (23).
8. The infusion leakage dynamic monitoring sensor according to claim 5, wherein an independent four-channel 24bit 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 in sliding sleeve connection with the extension line (9).
9. The sensor of claim 5, wherein the cassette (23) is configured to hold the cassette bottom (20) via the insert (22), the latch (26) and the spring (25).
10. The sensor of claim 5, wherein the OLED display and alarm (19) are used to provide text information and audible and visual alarms, respectively.
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