CN116785533A - Method and system for detecting needle falling off - Google Patents
Method and system for detecting needle falling off Download PDFInfo
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- CN116785533A CN116785533A CN202310871971.2A CN202310871971A CN116785533A CN 116785533 A CN116785533 A CN 116785533A CN 202310871971 A CN202310871971 A CN 202310871971A CN 116785533 A CN116785533 A CN 116785533A
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- 238000000034 method Methods 0.000 title claims description 20
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 238000001802 infusion Methods 0.000 claims description 145
- 239000007788 liquid Substances 0.000 claims description 95
- 230000002572 peristaltic effect Effects 0.000 claims description 47
- 238000002347 injection Methods 0.000 claims description 33
- 239000007924 injection Substances 0.000 claims description 33
- 230000001960 triggered effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims 2
- 238000012546 transfer Methods 0.000 description 8
- 239000003814 drug Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- 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
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- 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
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1588—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (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 belongs to the technical field of medical instrument detection control, and provides a needle falling detection method and a system.
Description
Technical Field
The invention belongs to the technical field of medical instrument detection control, and particularly relates to a method and a system for detecting needle falling.
Background
Infusion pumps such as injection pumps and infusion pumps are medical equipment commonly used in clinic, and if one end of a needle falls off carelessly in the working process of the injection pumps or the infusion pumps, medicines can not be infused into a patient body, and treatment of the patient is delayed. Therefore, when the infusion pump and the syringe pump are used, whether one end of the needle is normal or not needs to be concerned, for example, whether one end of the needle falls off or not needs to be observed, and when falling off occurs, corresponding measures need to be taken to avoid adverse effects on a patient. In the prior art, the falling-off condition of the needle is mainly detected by the medical staff through regular or irregular inspection or the medical staff is called to check when the patient detects abnormal liquid feeding. The condition of falling of manual examination syringe needle not only brings great work burden for medical personnel, increases medical cost, produces a great deal of uncertainty factor moreover easily, is unfavorable for patient's diagnosis and treatment.
In summary, the existing needle drop detection technology has the technical problems of high detection cost, large uncertainty of detection results and the like.
Disclosure of Invention
The invention aims to at least solve the defects in the prior art to a certain extent, and provides a method and a system for detecting needle falling, so as to reduce the detection cost of needle falling detection and reduce the uncertainty of needle falling detection.
In a first aspect, the present invention provides a method for detecting needle drop, including the following steps:
acquiring a working signal of a liquid inlet driving pump for driving liquid in a liquid conveying pipe to enter a user body so as to judge whether the liquid inlet driving pump is in a working state, wherein the liquid conveying pipe is connected with a needle;
when the liquid inlet driving pump is not in a working state, the current state of the needle head is obtained through the liquid inlet driving pump to serve as a first state, and when the liquid inlet driving pump is in the working state, the real-time state of the needle head is obtained through the liquid inlet driving pump to serve as a second state;
updating the first state of the needle head or judging that the needle head falls off according to the first state and the second state;
when the needle is judged to fall off, an alarm device is triggered to give out a needle falling-off alarm so as to prompt medical staff to take measures.
Further, the liquid inlet driving pump is an injection pump, the working signal of the liquid inlet driving pump for driving the liquid in the infusion tube to enter the user body is obtained to judge whether the liquid inlet driving pump is in a working state, the infusion tube is connected with the needle head, and the liquid inlet driving pump comprises:
acquiring a working signal of a syringe pump for driving liquid in an infusion tube into a user body, wherein the syringe pump comprises a driving component, a pushing component and a first pressure sensor; the driving component is connected with the pushing component; the first pressure sensor is assembled on the pushing assembly, an injector is assembled on one side of the pushing assembly, the liquid outlet end of the injector is connected with an infusion tube, and the infusion tube is connected with a needle; the driving assembly drives the pushing assembly to push the syringe so that the pushing end of the syringe is abutted with the first pressure sensor; the working signal of the injection pump is a driving signal of the driving assembly;
judging whether the injection pump is in a working state according to the driving signal of the driving assembly.
Further, the drive assembly includes motor and lead screw, judge according to the drive signal of drive assembly whether the syringe pump is in operating condition, include:
acquiring a driving signal for driving the screw rod to rotate by the motor, wherein the screw rod is connected with the pushing assembly, and the pushing assembly can be driven to push the injector by the screw rod to rotate;
judging whether the injection pump is in a working state according to a driving signal for driving the screw rod to rotate by the motor.
Further, the pushing assembly comprises a sliding block and a pushing handle; the sliding block is connected with the driving assembly and is in sliding connection with the pushing handle; the push handle is provided with the first pressure sensor and the syringe.
Further, the liquid inlet driving pump is an infusion pump, the working signal of the liquid inlet driving pump for driving the liquid in the infusion tube to enter the user body is obtained to judge whether the liquid inlet driving pump is in a working state, the infusion tube is connected with the needle head, and the liquid inlet driving pump comprises:
acquiring a working signal of an infusion pump for driving liquid in an infusion tube to enter a user body, wherein the infusion pump comprises an infusion pump body, a peristaltic device, an infusion pump door, a pump door pressing block and a second pressure sensor; the peristaltic device and the second pressure sensor are assembled on the infusion pump body, and the pump door pressing block is assembled on the infusion pump door; the infusion tube is connected with a needle head, passes through the infusion pump body and passes through the peristaltic device and the second pressure sensor; when the infusion pump door and the infusion pump body are closed, the pump door pressing block presses the infusion tube, the peristaltic device presses the infusion tube during peristaltic movement, and the working signal of the infusion pump is the peristaltic signal of the peristaltic device;
judging whether the infusion pump is in a working state according to peristaltic signals of the peristaltic device.
Further, when the liquid inlet driving pump is an injection pump, when the liquid inlet driving pump is not in a working state, acquiring the current state of the needle through the liquid inlet driving pump to be used as a first state, and when the liquid inlet driving pump is in a working state, acquiring the real-time state of the needle through the liquid inlet driving pump to be used as a second state includes:
when the injection pump is not in an operating state, the sensor of the injection pump is used for acquiring the maximum pressure P of the needle head max As a first state, the maximum pressure P of the needle max A current pressure for the needle;
when the injection pump is in a working state, acquiring the real-time pressure of the needle head through a sensor of the injection pump, wherein the real-time pressure is in the second state.
Further, the updating the first state of the needle or determining that the needle is dropped according to the first state and the second state includes:
the real-time pressure and the maximum pressure P max Comparing;
at the position ofThe real-time pressure is greater than the maximum pressure P max Updating the current pressure of the needle head when the real-time pressure is smaller than the maximum pressure P max Calculating the real-time pressure and the maximum pressure P max Is a pressure difference of (2);
judging whether the pressure difference exceeds a preset range, and judging that the needle falls off when the pressure difference exceeds the preset range.
Further, when the liquid feeding driving pump is an infusion pump, when the liquid feeding driving pump is not in a working state, acquiring the current state of the needle through the liquid feeding driving pump to be used as a first state, and when the liquid feeding driving pump is in the working state, acquiring the real-time state of the needle through the liquid feeding driving pump to be used as a second state includes:
when the infusion pump is not in a working state, the sensor of the infusion pump is used for acquiring the maximum pressure P of the needle head max As a first state, the maximum pressure P of the needle max A current pressure for the needle;
when the infusion pump is in a working state, acquiring the real-time pressure of the needle head through a sensor of the infusion pump, wherein the real-time pressure is in the second state.
Further, the updating the first state of the needle or determining that the needle is dropped according to the first state and the second state includes:
the real-time pressure and the maximum pressure P max Comparing;
at the time the real-time pressure is greater than the maximum pressure P max Updating the current pressure of the needle head when the real-time pressure is smaller than the maximum pressure P max Calculating the real-time pressure and the maximum pressure P max Is a pressure difference of (2);
judging whether the pressure difference exceeds a preset range, and judging that the needle falls off when the pressure difference exceeds the preset range.
In a second aspect, the present invention provides a needle fall off detection system comprising:
a syringe pump or infusion pump, the syringe pump comprising a drive assembly, a push assembly, and a first pressure sensor; the driving component is connected with the pushing component; the first pressure sensor is assembled on the pushing assembly, an injector is assembled on one side of the pushing assembly, the liquid outlet end of the injector is connected with an infusion tube, and the infusion tube is connected with a needle; the driving assembly drives the pushing assembly to push the syringe so that the pushing end of the syringe is abutted with the first pressure sensor; the working signal of the injection pump is a driving signal of the driving assembly; the infusion pump comprises an infusion pump body, a peristaltic device, an infusion pump door, a pump door pressing block and a second pressure sensor; the peristaltic device and the second pressure sensor are assembled on the infusion pump body, and the pump door pressing block is assembled on the infusion pump door; the infusion tube is connected with a needle head, passes through the infusion pump body and passes through the peristaltic device and the second pressure sensor; when the infusion pump door and the infusion pump body are closed, the pump door pressing block presses the infusion tube, the peristaltic device presses the infusion tube during peristaltic movement, and the working signal of the infusion pump is the peristaltic signal of the peristaltic device;
the main control module is communicated with the injection pump or the infusion pump and is used for running any needle falling detection method;
and the alarm device is communicated with the main control module and is used for sending out a needle head falling alarm under the triggering of the main control module so as to prompt medical staff to take measures.
Compared with the prior art, the invention has the beneficial effects that:
according to the needle falling detection method and system, the working signal of the liquid inlet driving pump for driving the liquid in the liquid conveying pipe to enter the user body is acquired to judge whether the liquid inlet driving pump is in a working state, the liquid conveying pipe is connected with the needle, when the liquid inlet driving pump is not in the working state, the current state of the needle is acquired as a first state through the liquid inlet driving pump, when the liquid inlet driving pump is in the working state, the real-time state of the needle is acquired as a second state through the liquid inlet driving pump, the first state of the needle is updated or the needle is judged to fall, and when the needle is judged to fall, the alarm device is triggered to send out the needle falling alarm to prompt medical staff to take measures, so that intelligent detection of needle falling is achieved, detection cost is reduced, and accuracy of detection results is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a flow chart of a method for detecting needle fall off according to an embodiment of the present invention;
FIG. 2 is a schematic view of a syringe pump according to an embodiment of the present invention;
FIG. 3 is a schematic view of another construction of a syringe pump according to an embodiment of the present invention;
FIG. 4 is a schematic view of an infusion pump according to an embodiment of the invention;
FIG. 5 is a schematic diagram of an architecture of a needle fall off detection system according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another embodiment of a needle fall off detection system.
In the drawings, each reference numeral denotes:
1. a drive assembly; 10. a screw rod; 2. a pushing assembly; 20. a slide block; 21. a push handle; 3. a first pressure sensor; 4. a syringe; 5. an infusion pump door; 50. pressing blocks of a pump door; 6. an infusion tube; 60. the flow direction of the liquid medicine; 7. an infusion pump body; 8. a peristaltic device; 9. and a second pressure sensor.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar methods or methods having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention, and all other embodiments, based on the embodiments of the present invention, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present invention.
Example 1
Referring to fig. 1-6, the present embodiment provides a method for detecting needle falling, which includes steps S101, S102, S103 and S104. The step S101, the step S102, the step S103 and the step S104 can run in the main control module, whether the liquid inlet driving pump is in a working state or not is judged by acquiring a working signal of the liquid inlet driving pump for driving the liquid in the liquid inlet pipe into a user body, the liquid inlet pipe is connected with the needle head, when the liquid inlet driving pump is not in the working state, the current state of the needle head is acquired as a first state through the liquid inlet driving pump, when the liquid inlet driving pump is in the working state, the real-time state of the needle head is acquired as a second state through the liquid inlet driving pump, the first state of the needle head is updated or the needle head is judged to fall off according to the first state and the second state, and when the needle head is judged to fall off, the alarm device is triggered to give out the needle head falling alarm so as to prompt a medical staff to take measures, thereby realizing intelligent detection of the needle head falling, reducing the detection cost and improving the accuracy of the detection result. The main control module may include a microprocessor, and the microprocessor may implement step S101, step S102, step S103, and step S104 by running a program.
Step S101, a main control module obtains a working signal of a liquid inlet driving pump for driving liquid in an infusion tube to enter a user body so as to judge whether the liquid inlet driving pump is in a working state, and the infusion tube is connected with a needle head.
It should be noted that the liquid inlet driving pump may be a syringe pump, and the syringe pump includes a driving component 1, a pushing component 2, and a first pressure sensor 3; the driving assembly 1 is connected with the pushing assembly 2; the first pressure sensor 3 is assembled on the pushing component 2, an injector 4 is assembled on one side of the pushing component 2, the liquid outlet end of the injector 4 is connected with a transfusion tube 6, and the transfusion tube 6 is connected with a needle; the driving assembly 1 drives the pushing assembly 2 to push the syringe 4 so that the pushing end of the syringe 4 is abutted against the first pressure sensor 3; the operation signal of the syringe pump is the driving signal of the driving assembly 1. The driving assembly 1 comprises a motor and a screw rod 10, wherein the motor is connected with the screw rod 10 and drives the screw rod 10 to rotate; the pushing assembly 2 comprises a sliding block 20 and a pushing handle 21; the sliding block 20 is connected with the driving assembly 1 and is in sliding connection with the pushing handle 21; the push handle 21 is provided with the first pressure sensor 3 and the syringe 4.
It should be noted that, the step of obtaining the working signal of the liquid inlet driving pump for driving the liquid in the infusion tube into the user body to determine whether the liquid inlet driving pump is in a working state, where the infusion tube is connected with the needle, may preferably include the following steps:
acquiring a working signal of a syringe pump for driving liquid in an infusion tube into a user body, wherein the syringe pump comprises a driving component, a pushing component and a first pressure sensor; the driving component is connected with the pushing component; the first pressure sensor is assembled on the pushing assembly, an injector is assembled on one side of the pushing assembly, the liquid outlet end of the injector is connected with an infusion tube, and the infusion tube is connected with a needle; the driving assembly drives the pushing assembly to push the syringe so that the pushing end of the syringe is abutted with the first pressure sensor; the working signal of the injection pump is a driving signal of the driving assembly;
judging whether the injection pump is in a working state according to the driving signal of the driving assembly.
It should be noted that, the determining whether the syringe pump is in the working state according to the driving signal of the driving assembly may preferably include the following steps:
acquiring a driving signal for driving the screw rod to rotate by the motor, wherein the screw rod is connected with the pushing assembly, and the pushing assembly can be driven to push the injector by the screw rod to rotate;
judging whether the injection pump is in a working state according to a driving signal for driving the screw rod to rotate by the motor.
It should be noted that the liquid feeding driving pump may be an infusion pump, and the infusion pump includes an infusion pump body 7, a peristaltic device 8, an infusion pump door 5, a pump door pressing block 50, and a second pressure sensor 9; the peristaltic device 8 and the second pressure sensor 9 are assembled on the infusion pump body 7, and the pump door pressing block 50 is assembled on the infusion pump door 5; the infusion tube 6 is connected with a needle head, passes through the infusion pump body 7 and passes through the peristaltic device 8 and the second pressure sensor 9; when the infusion pump door 5 and the infusion pump body 7 are closed, the pump door pressing block 50 presses the infusion tube 6, the peristaltic device 8 presses the infusion tube 6 during peristaltic motion, and the working signal of the infusion pump is the peristaltic signal of the peristaltic device 8. Wherein, the liquid medicine in the infusion tube 6 flows according to the liquid medicine flow direction 60.
Step S102, when the liquid inlet driving pump is not in a working state, the main control module obtains the current state of the needle through the liquid inlet driving pump to serve as a first state, and when the liquid inlet driving pump is in a working state, the main control module obtains the real-time state of the needle through the liquid inlet driving pump to serve as a second state.
It should be noted that, when the liquid inlet driving pump is not in the working state, the liquid inlet driving pump may acquire the current state of the needle as the first state, and when the liquid inlet driving pump is in the working state, the liquid inlet driving pump may acquire the real-time state of the needle as the second state, and may preferably include the following steps:
when the injection pump is not in an operating state, the sensor of the injection pump is used for acquiring the maximum pressure P of the needle head max As a first state, the maximum pressure P of the needle max A current pressure for the needle;
when the injection pump is in a working state, acquiring the real-time pressure of the needle head through a sensor of the injection pump, wherein the real-time pressure is in the second state.
It should be further noted that, when the liquid inlet driving pump is not in the working state, the liquid inlet driving pump may acquire the current state of the needle as the first state, and when the liquid inlet driving pump is in the working state, the liquid inlet driving pump may acquire the real-time state of the needle as the second state, and the method may preferably include the following steps:
when the infusion pump is not in a working state, the sensor of the infusion pump is used for acquiring the maximum pressure P of the needle head max As a first state, the maximum pressure P of the needle max A current pressure for the needle;
when the infusion pump is in a working state, acquiring the real-time pressure of the needle head through a sensor of the infusion pump, wherein the real-time pressure is in the second state.
Step S103, the main control module updates the first state of the needle head or judges that the needle head falls off according to the first state and the second state. The first state is updated when the first state is smaller than the second state, and the needle head is judged to fall off when the second state is smaller than the first state and exceeds a threshold value.
It should be noted that, according to the first state and the second state, updating the first state of the needle or determining that the needle is dropped off may preferably include the following steps:
the real-time pressure and the maximum pressure P max Comparing;
at the time the real-time pressure is greater than the maximum pressure P max Updating the current pressure of the needle head when the real-time pressure is smaller than the maximum pressure P max Calculating the real-time pressure and the maximum pressure P max Is a pressure difference of (2);
judging whether the pressure difference exceeds a preset range, and judging that the needle falls off when the pressure difference exceeds the preset range.
Step S104, when the main control module judges that the needle falls off, the alarm device is triggered to send out a needle falling-off alarm so as to prompt medical staff to take measures.
It should be noted that, during injection or infusion, the needle is in the user's body, and blood concentration has a blocking effect to the injection of liquid medicine, and when the needle drops, the blocking effect disappears in the twinkling of an eye to detect the pressure variation of needle in real time, thereby can judge whether the needle breaks away from the patient.
Example two
Referring to fig. 1-5, the present embodiment provides a system for detecting needle falling, which includes:
the infusion pump comprises an infusion pump body, a peristaltic device, an infusion pump door, a pump door pressing block and a second pressure sensor; the peristaltic device and the second pressure sensor are assembled on the infusion pump body, and the pump door pressing block is assembled on the infusion pump door; the infusion tube is connected with a needle head, passes through the infusion pump body and passes through the peristaltic device and the second pressure sensor; when the infusion pump door and the infusion pump body are closed, the pump door pressing block presses the infusion tube, the peristaltic device presses the infusion tube during peristaltic movement, and the working signal of the infusion pump is the peristaltic signal of the peristaltic device; the driving assembly comprises a motor and a screw rod, and the motor is connected with the screw rod and drives the screw rod to rotate; the pushing component comprises a sliding block and a pushing handle; the sliding block is connected with the driving assembly and is in sliding connection with the pushing handle; the pushing handle is provided with the first pressure sensor and the injector;
the main control module is communicated with the infusion pump and is used for running any needle falling detection method;
and the alarm device is communicated with the main control module and is used for sending out a needle head falling alarm under the triggering of the main control module so as to prompt medical staff to take measures.
In this embodiment, through obtaining the operating signal that is arranged in driving the liquid in the transfer line and gets into the internal transfer pump of user in order to judge whether the transfer pump is in operating condition, the syringe needle is connected to the transfer line, when the transfer pump is not in operating condition, obtains the current state of syringe needle through the transfer pump and regard as first state, when the transfer pump is in operating condition, obtain the second state of syringe needle through the transfer pump, according to first state with the second state, update the first state of syringe needle or judge that the syringe needle takes place to drop, when judging that the syringe needle takes place to drop, trigger alarm device and send syringe needle drop alarm to suggestion medical personnel take measures to realize the intellectual detection system that the syringe needle drops, reduce detection cost, promote the accuracy of testing result.
Example III
Referring to fig. 1-4 and fig. 6, the present embodiment provides a needle-out detection system, which includes:
a syringe pump including a drive assembly, a push assembly, and a first pressure sensor; the driving component is connected with the pushing component; the first pressure sensor is assembled on the pushing assembly, an injector is assembled on one side of the pushing assembly, the liquid outlet end of the injector is connected with an infusion tube, and the infusion tube is connected with a needle; the driving assembly drives the pushing assembly to push the syringe so that the pushing end of the syringe is abutted with the first pressure sensor; the working signal of the injection pump is a driving signal of the driving assembly;
the main control module is communicated with the injection pump and is used for running any needle falling detection method;
and the alarm device is communicated with the main control module and is used for sending out a needle head falling alarm under the triggering of the main control module so as to prompt medical staff to take measures.
In this embodiment, whether the infusion pump is in the operating condition is judged by obtaining the operating signal of the infusion pump for driving the liquid in the infusion tube to enter the user's body, the infusion tube is connected with the needle, when the infusion pump is not in the operating condition, the current state of the needle is obtained through the infusion pump to be used as the first state, when the infusion pump is in the operating condition, the second state of the needle is obtained through the infusion pump, according to the first state and the second state, the first state of the needle is updated or the needle is judged to fall off, when the needle is judged to fall off, the alarm device is triggered to give out the needle fall-off alarm so as to prompt the medical staff to take measures, thereby realizing the intelligent detection of the needle fall-off, reducing the detection cost and improving the accuracy of the detection result.
The foregoing is a description of the embodiments of the present invention, and is not to be construed as limiting the invention, since modifications in the detailed description and the application scope will become apparent to those skilled in the art upon consideration of the teaching of the embodiments of the present invention.
Claims (10)
1. The method for detecting the falling-off of the needle head is characterized by comprising the following steps of:
acquiring a working signal of a liquid inlet driving pump for driving liquid in a liquid conveying pipe to enter a user body so as to judge whether the liquid inlet driving pump is in a working state, wherein the liquid conveying pipe is connected with a needle;
when the liquid inlet driving pump is not in a working state, the current state of the needle head is obtained through the liquid inlet driving pump to serve as a first state, and when the liquid inlet driving pump is in the working state, the real-time state of the needle head is obtained through the liquid inlet driving pump to serve as a second state;
updating the first state of the needle head or judging that the needle head falls off according to the first state and the second state;
when the needle is judged to fall off, an alarm device is triggered to give out a needle falling-off alarm so as to prompt medical staff to take measures.
2. The method for detecting needle detachment of claim 1, wherein the fluid-feeding driving pump is a syringe pump, the step of obtaining an operation signal of the fluid-feeding driving pump for driving the fluid in the infusion tube into the user's body to determine whether the fluid-feeding driving pump is in an operation state, the infusion tube being connected to the needle, comprises:
acquiring a working signal of a syringe pump for driving liquid in an infusion tube into a user body, wherein the syringe pump comprises a driving component, a pushing component and a first pressure sensor; the driving component is connected with the pushing component; the first pressure sensor is assembled on the pushing assembly, an injector is assembled on one side of the pushing assembly, the liquid outlet end of the injector is connected with an infusion tube, and the infusion tube is connected with a needle; the driving assembly drives the pushing assembly to push the syringe so that the pushing end of the syringe is abutted with the first pressure sensor; the working signal of the injection pump is a driving signal of the driving assembly;
judging whether the injection pump is in a working state according to the driving signal of the driving assembly.
3. The method for detecting needle fall-off as in claim 2, wherein the driving assembly includes a motor and a screw, and the determining whether the syringe pump is in an operating state according to a driving signal of the driving assembly includes:
acquiring a driving signal for driving the screw rod to rotate by the motor, wherein the screw rod is connected with the pushing assembly, and the pushing assembly can be driven to push the injector by the screw rod to rotate;
judging whether the injection pump is in a working state according to a driving signal for driving the screw rod to rotate by the motor.
4. The method of detecting needle fall-off as in claim 2, wherein the pushing assembly comprises a slider and a push handle; the sliding block is connected with the driving assembly and is in sliding connection with the pushing handle; the push handle is provided with the first pressure sensor and the syringe.
5. The method for detecting needle detachment of claim 1, wherein the fluid-feeding driving pump is an infusion pump, the step of obtaining an operation signal of the fluid-feeding driving pump for driving the fluid in the infusion tube into the user's body to determine whether the fluid-feeding driving pump is in an operation state, the infusion tube being connected to the needle, comprises:
acquiring a working signal of an infusion pump for driving liquid in an infusion tube to enter a user body, wherein the infusion pump comprises an infusion pump body, a peristaltic device, an infusion pump door, a pump door pressing block and a second pressure sensor; the peristaltic device and the second pressure sensor are assembled on the infusion pump body, and the pump door pressing block is assembled on the infusion pump door; the infusion tube is connected with a needle head, passes through the infusion pump body and passes through the peristaltic device and the second pressure sensor; when the infusion pump door and the infusion pump body are closed, the pump door pressing block presses the infusion tube, the peristaltic device presses the infusion tube during peristaltic movement, and the working signal of the infusion pump is the peristaltic signal of the peristaltic device;
judging whether the infusion pump is in a working state according to peristaltic signals of the peristaltic device.
6. The method for detecting needle detachment of any one of claims 2-4, wherein, when the liquid-feeding driving pump is a syringe pump, the obtaining, by the liquid-feeding driving pump, the current state of the needle as a first state when the liquid-feeding driving pump is not in an operating state, and obtaining, by the liquid-feeding driving pump, the real-time state of the needle as a second state when the liquid-feeding driving pump is in an operating state, comprises:
when the injection pump is not in an operating state, the sensor of the injection pump is used for acquiring the maximum pressure P of the needle head max As a first state, the maximum pressure P of the needle max A current pressure for the needle;
when the injection pump is in a working state, acquiring the real-time pressure of the needle head through a sensor of the injection pump, wherein the real-time pressure is in the second state.
7. The method of detecting needle drop out of claim 6, wherein updating the first state of the needle or determining that the needle is dropped out based on the first state and the second state comprises:
the real-time pressure and the maximum pressure P max Comparing;
at the time the real-time pressure is greater than the maximum pressure P max Updating the current pressure of the needle head when the real-time pressure is smaller than the maximum pressure P max Calculating the real-time pressure and the maximum pressure P max Is a pressure difference of (2);
judging whether the pressure difference exceeds a preset range, and judging that the needle falls off when the pressure difference exceeds the preset range.
8. The method for detecting needle drop as defined in claim 5, wherein when the liquid-feeding driving pump is an infusion pump, the step of obtaining the current state of the needle as a first state by the liquid-feeding driving pump when the liquid-feeding driving pump is not in an operating state, and obtaining the real-time state of the needle as a second state by the liquid-feeding driving pump when the liquid-feeding driving pump is in an operating state comprises:
when the infusion pump is not in a working state, the sensor of the infusion pump is used for acquiring the maximum pressure P of the needle head max As a first state, the maximum pressure P of the needle max A current pressure for the needle;
when the infusion pump is in a working state, acquiring the real-time pressure of the needle head through a sensor of the infusion pump, wherein the real-time pressure is in the second state.
9. The method of detecting needle drop out of claim 8, wherein updating the first state of the needle or determining that the needle is dropped out based on the first state and the second state comprises:
the real-time pressure and the maximum pressure P max Comparing;
at the time the real-time pressure is greater than the maximum pressure P max Updating the current pressure of the needle head when the real-time pressure is smaller than the maximum pressure P max Calculating the real-time pressure and the maximum pressure P max Is a pressure difference of (2);
judging whether the pressure difference exceeds a preset range, and judging that the needle falls off when the pressure difference exceeds the preset range.
10. A needle fall-off detection system, comprising:
a syringe pump or infusion pump, the syringe pump comprising a drive assembly, a push assembly, and a first pressure sensor; the driving component is connected with the pushing component; the first pressure sensor is assembled on the pushing assembly, an injector is assembled on one side of the pushing assembly, the liquid outlet end of the injector is connected with an infusion tube, and the infusion tube is connected with a needle; the driving assembly drives the pushing assembly to push the syringe so that the pushing end of the syringe is abutted with the first pressure sensor; the working signal of the injection pump is a driving signal of the driving assembly; the infusion pump comprises an infusion pump body, a peristaltic device, an infusion pump door, a pump door pressing block and a second pressure sensor; the peristaltic device and the second pressure sensor are assembled on the infusion pump body, and the pump door pressing block is assembled on the infusion pump door; the infusion tube is connected with a needle head, passes through the infusion pump body and passes through the peristaltic device and the second pressure sensor; when the infusion pump door and the infusion pump body are closed, the pump door pressing block presses the infusion tube, the peristaltic device presses the infusion tube during peristaltic movement, and the working signal of the infusion pump is the peristaltic signal of the peristaltic device;
a main control module which is connected and communicated with the injection pump or the infusion pump and is used for running the needle head falling detection method as claimed in claim 7 or 9;
and the alarm device is communicated with the main control module and is used for sending out a needle head falling alarm under the triggering of the main control module so as to prompt medical staff to take measures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310871971.2A CN116785533A (en) | 2023-07-14 | 2023-07-14 | Method and system for detecting needle falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310871971.2A CN116785533A (en) | 2023-07-14 | 2023-07-14 | Method and system for detecting needle falling off |
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| Publication Number | Publication Date |
|---|---|
| CN116785533A true CN116785533A (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310871971.2A Pending CN116785533A (en) | 2023-07-14 | 2023-07-14 | Method and system for detecting needle falling off |
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| Country | Link |
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| CN (1) | CN116785533A (en) |
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2023
- 2023-07-14 CN CN202310871971.2A patent/CN116785533A/en active Pending
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