CN215068598U - Infusion detection device based on optical fiber Fabry-Perot detection principle - Google Patents
Infusion detection device based on optical fiber Fabry-Perot detection principle Download PDFInfo
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- CN215068598U CN215068598U CN202121509712.8U CN202121509712U CN215068598U CN 215068598 U CN215068598 U CN 215068598U CN 202121509712 U CN202121509712 U CN 202121509712U CN 215068598 U CN215068598 U CN 215068598U
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Abstract
The utility model discloses an infusion detection device based on optical fiber Fabry-Perot detection principle, including the optical fiber sensing unit, the optical fiber sensing unit is installed on the transfer line, the optical fiber sensing unit is provided with first sense terminal and second sense terminal, and first sense terminal and second sense terminal are located the both sides of transfer line respectively and with the outer wall butt of transfer line, the terminal surface that the first sense terminal is close to the transfer line is the plane of reflection, runs through being provided with first optic fibre in the second sense terminal, the one end of first optic fibre with the outer wall butt of transfer line and corresponding with the plane of reflection; the other end of the first optical fiber is used for connecting the photoelectric detection unit. The utility model discloses an optic fibre fabry-perot detects whether to contain liquid in the principle detects the transfer line, sends detected signal and is used for the work of control alarm unit, can not cause the pollution to input liquid in the course of the work.
Description
Technical Field
The utility model relates to a clinical medical treatment technical field especially relates to an infusion detection device based on optic fibre fabry-perot detects principle.
Background
Among the current clinical treatment systems, intravenous infusion is one of the most important treatment methods. When a patient is transfused, the body of the patient is positioned below the transfusion bottle, so that the residual amount of the solution in the transfusion bottle cannot be seen clearly, and therefore, a nurse or family is usually required to take care of the patient all the time. If the transfusion tube is not pulled out in time after the liquid in the transfusion bottle is transfused, blood can flow backwards, and certain danger is caused to a patient. Therefore, an infusion alarm is urgently needed, unnecessary manpower is not wasted in the process of intravenous infusion of a patient, and the safety of the patient in the infusion process can be ensured.
At present, various solutions have been proposed at home and abroad to solve the above-mentioned problems, and the methods mainly include a floating ball method, a capacitance method, a probe method, a weighing method, a droplet detection method, and the like. The floating ball method is to place the floating ball on the liquid level of the inner solution, and the floating ball reaches the bottom end of the infusion bottle to trigger the alarm after the liquid is infused. The capacitance method is to place the infusion bottle on one side of a capacitance sensor and judge whether liquid exists in the infusion bottle or not through judging the capacitance of the sensor. The probe method is to insert two probes into the infusion bottle and detect the resistance value between the two probes to judge whether the liquid in the infusion bottle is completely infused. The weighing method is used for judging whether the liquid book in the infusion bottle is input completely by weighing the weight of the infusion bottle, the principle of the method is simple, but the operation is more complicated, and different parameters are set for different infusion bottles. The existing liquid detection method adopts a photoelectric detection method, judges whether transfusion is finished or not by detecting an infrared pulse signal generated when liquid medicine drops in a dropping funnel, and is not popularized on a large scale.
The prior art has the defect that an infusion detection device based on an optical fiber Fabry-Perot detection principle is lacked, and an infusion alarm is controlled to work by adopting the optical fiber Fabry-Perot detection principle.
SUMMERY OF THE UTILITY MODEL
In view of at least one defect of prior art, the utility model aims at providing an infusion detection device based on optic fibre amber detects principle adopts optic fibre amber to detect whether contain liquid in the principle detects the transfer line, sends the detected signal and is used for the work of control alarm unit, can not cause the pollution to input liquid in the course of the work.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an infusion detection device based on an optical fiber Fabry-Perot detection principle comprises an optical fiber sensing unit, a photoelectric detection unit and an alarm unit, wherein the optical fiber sensing unit is arranged on an infusion tube and is used for detecting whether the infusion tube contains liquid or not; the optical fiber sensing unit is provided with a first detection end and a second detection end, the first detection end and the second detection end are respectively positioned at two sides of the infusion tube and are abutted against the outer wall of the infusion tube, the end face, close to the infusion tube, of the first detection end is a reflection surface, a first optical fiber penetrates through the second detection end, and one end of the first optical fiber is abutted against the outer wall of the infusion tube and corresponds to the reflection surface; the other end of the first optical fiber is used for connecting the photoelectric detection unit.
The alarm unit is connected with the optical fiber sensing unit through the photoelectric detection unit to acquire a signal of the optical fiber sensing unit, and the alarm unit sends alarm information according to the acquired signal.
The optical fiber sensing unit is used for detecting whether the infusion tube contains liquid or not, and can be clamped and fixed at the infusion tube at the upper end of the Murphy tube when in use; the rear end of the optical fiber sensing unit is connected with a photoelectric detection unit, the photoelectric detection unit is fixed on a platform of the supporting frame, and the rear end of the photoelectric detection unit is connected with an alarm unit.
The reflecting surface of the first detection end in the optical fiber sensing unit corresponds to one end of the first optical fiber, the end face of the first optical fiber, which is opposite to the reflecting surface, is flat, the first detection end and the second detection end clamp the infusion tube when in use, and the first optical fiber transmits the detected sensing signal to the photoelectric detection unit at the rear end. The photoelectric detection unit is responsible for handling the signal that first optic fibre was collected, and when liquid was from having to having or not in the transfer line, the signal that optic fibre sensing unit was collected around changed, triggers rear end alarm unit this moment, and alarm unit sends out the police dispatch newspaper and reminds medical personnel to carry out relevant medical care operation.
The infusion tube fixing device is characterized by further comprising a groove-shaped mounting frame, the front part and the upper and lower ends of the mounting frame are both provided with openings, a first detection end is fixedly arranged on the left side of an inner cavity of the mounting frame, a second detection end is arranged on the right side of the inner cavity of the mounting frame, and the inner side of the second detection end is arc-shaped and is matched with the outer wall of the infusion tube; a transfusion tube is arranged between the first detection end and the second detection end in a penetrating way; the other end of the first optical fiber extends out of the mounting rack through a first via hole formed in the right side wall of the mounting rack and is used for being connected with the photoelectric detection unit.
The groove-shaped mounting frame is used for mounting the optical fiber sensing unit, the infusion tube is placed between the first detection end and the second detection end when the infusion tube is used, and the arc inner side face of the second detection end is beneficial to fixing the optical fiber sensing unit on the infusion tube to prevent falling off.
A sliding plate is fixedly arranged at the right end of the second detection end and is connected with the inner wall of the right side of the mounting rack through a spring; handles are arranged at the front end and the rear end of the sliding plate, the handles at the rear end extend out of the mounting frame through sliding holes formed in the rear wall of the mounting frame, and the handles at the rear end can slide left and right in the sliding holes. The slide plate is also provided with a via hole through which the first optical fiber passes.
The handles at the front end and the rear end of the sliding plate are captured by one hand, the spring is compressed towards the right side, the distance between the first detection end and the second detection end is increased, the infusion tube is placed between the first detection end and the second detection end by the other hand, and the handles are released; the second detection end moves leftwards under the action of the restoring force of the spring, and the infusion tube is clamped between the first detection end and the second detection end.
The photoelectric detection unit comprises a light source, a spectrometer and an optical fiber coupler, wherein the light source is connected with an input interface of the optical fiber coupler through a second optical fiber, and the other end of the first optical fiber is connected with a first connecting interface of the optical fiber coupler; the spectrometer is connected with the second connection interface of the optical fiber coupler through a third optical fiber.
The photoelectric detection unit is provided with the spectrum appearance, light source and fiber coupler, the light source is responsible for sending test light and sends the test light to fiber coupler through the second optic fibre, fiber coupler is responsible for the second optic fibre with the connection light source, the first optic fibre of optical fiber sensing unit and the third optic fibre coupling that is connected to the spectrum appearance are in the same place, the spectrum appearance becomes the signal of telecommunication with the light signal conversion that first optic fibre transmission was returned and transmits alarm unit for, liquid is from having to not having in the transfer line, the signal that the optical fiber sensing unit was collected around changes, trigger rear end alarm unit this moment, alarm unit sends the police dispatch newspaper and reminds medical personnel to carry out relevant medical care operation.
The alarm unit is provided with a single chip microcomputer, the signal output end of the spectrograph is connected with the signal input end of the single chip microcomputer, and the single chip microcomputer is also connected with a Bluetooth module, a buzzer alarm and a light alarm; the singlechip is connected with a start-stop switch and a sound switch.
The alarm unit is provided with a single chip microcomputer, the single chip microcomputer is connected with a buzzer alarm, a light alarm and a Bluetooth module, the Bluetooth module can transmit an alarm instruction to a nurse station terminal, and the sound switch can control whether the buzzer alarm buzzes or not; at night, the single chip microcomputer can acquire the instruction of the sound switch to control the buzzer alarm to stop sounding, so that the influence on other people to sleep is avoided. The start-stop switch can control the start and stop of the alarm unit. After the photoelectric detection unit is arranged on the infusion tube, a nurse can press the start-stop switch to control the alarm unit to start working; after the infusion is finished, the start-stop switch is pressed again to control the alarm unit to stop working.
The mounting frame is also provided with a clamping and stopping device; the clamping and stopping device is arranged below the first detection end and the second detection end and comprises a rubber base plate, a square clamping plate, an end cover and a screw rod motor; the rubber base plate is arranged on the inner wall of the left side of the mounting frame, the clamping plate is arranged on the right side of the inner cavity of the mounting frame in a sliding mode and is opposite to the rubber base plate, the end cover is fixedly arranged on the right side wall of the clamping plate, the lead screw motor is arranged on the outer wall of the right side of the mounting frame, the left end of a lead screw of the lead screw motor extends into the inner cavity of the mounting frame through a second through hole formed in the right side wall of the mounting frame, the left end of the lead screw extends into the end cover through a through hole formed in the right side wall of the end cover, the left end of the lead screw is connected with an end head, and the end head is located in the end cover; the alarm unit is connected with a screw motor through a motor driving module to drive the screw motor to rotate; the alarm unit is connected with a motor reset switch.
The effect that above-mentioned structure set up does: when liquid in the infusion tube is changed from the existence to the nonexistence, signals collected by the optical fiber sensing unit are changed, the rear end alarm unit is triggered, and the alarm unit gives an alarm to remind medical staff of carrying out related medical care operation; meanwhile, the alarm unit is connected with a screw motor through a motor driving module to drive the screw motor to rotate in the forward direction; the left end of the screw rod moves leftwards to push the clamping plate to slide leftwards until the infusion tube is clamped; when a motor reset switch is pressed down, the alarm unit is connected with a screw motor through a motor driving module to drive the screw motor to rotate reversely; the left end of the screw rod moves to the right, and the clamping plate is pushed by the end cover to slide to the right until the transfusion tube is released. The rubber base plate plays a role in buffering in the clamping stopping process.
By the device, when no liquid exists in the infusion tube, the automatic clamping and stopping can be realized by the clamping and stopping device.
The lower end opening of the mounting frame is abutted with the upper end of the Murphy tube.
The utility model provides a transfusion detection device based on optic fibre Fabry-Perot detects principle adopts optic fibre Fabry-Perot to detect whether contain liquid in the transfer line, sends the detected signal and is used for controlling alarm unit work, can not cause the pollution to the input liquid in the course of the work.
Drawings
FIG. 1 is a block diagram of an optical fiber sensing unit and a clamping device;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
fig. 4 is a circuit block diagram of the present invention;
fig. 5 is a usage state diagram of the present invention;
FIG. 6 is a circuit diagram of a single chip microcomputer;
FIG. 7 is a circuit diagram of a buzzer siren;
FIG. 8 is a circuit diagram of a light alarm;
FIG. 9 is a circuit diagram of a motor drive module;
fig. 10 is a circuit diagram of a power module of the single chip microcomputer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-10, an infusion detection device based on the optical fiber fabry-perot detection principle comprises an optical fiber sensing unit 1, a photoelectric detection unit 2 and an alarm unit 3, wherein the optical fiber sensing unit 1 is mounted on an infusion tube 10 and used for detecting whether the infusion tube 10 contains liquid or not; the optical fiber sensing unit 1 is provided with a first detection end 11 and a second detection end 12, the first detection end 11 and the second detection end 12 are respectively positioned at two sides of the infusion tube 10 and are abutted against the outer wall of the infusion tube 10, the end surface of the first detection end 11 close to the infusion tube 10 is a reflection surface, a first optical fiber 121 penetrates through the second detection end 12, one end of the first optical fiber 121 is abutted against the outer wall of the infusion tube 10 and corresponds to the reflection surface, and the end of the first optical fiber 121 is fixed on the second detection end 12; the other end of the first optical fiber 121 is connected with the photoelectric detection unit 2; the alarm unit 3 is connected with the optical fiber sensing unit 1 through the photoelectric detection unit 2 to acquire signals thereof, and the alarm unit 3 sends alarm information according to the acquired signals.
The optical fiber sensing unit 1 is used for detecting whether the infusion tube 10 contains liquid or not, and can clamp and fix the infusion tube 10 at the upper end of the Murphy's dropper 5 when in use; the rear end of the optical fiber sensing unit 1 is connected with the photoelectric detection unit 2, the photoelectric detection unit 2 is fixed on a platform of the support frame 7, and the rear end of the photoelectric detection unit 2 is connected with the alarm unit 3.
The optical fiber sensing unit 1 is shown in fig. 1-2. The reflecting surface of the first detection end 11 in the optical fiber sensing unit 1 corresponds to one end of the first optical fiber 121, the end surface of the first optical fiber 121 opposite to the reflecting surface is flat, the infusion tube 10 is clamped by the first detection end 11 and the second detection end 12 when the infusion tube is used, and the first optical fiber 121 transmits the detected sensing signal to the photoelectric detection unit 2 at the rear end. The photoelectric detection unit 2 is responsible for processing the signal that first optic fibre 121 was collected, and when liquid was from having to having or not in transfer line 10, the signal that the optic fibre sensing unit 1 was collected from the front to back changed, triggers rear end alarm unit 3 this moment, and alarm unit 3 sends out the police dispatch newspaper and reminds medical personnel to carry out relevant medical care operation.
Fig. 5 is a diagram of a usage state of the present invention, in which a movable base 6 is placed on the ground, a support frame 7 is installed on the base 6, and a photoelectric detection unit 2 and an alarm unit 3 are placed on a platform on one side of the support frame 7; an infusion bottle 8 is hung at the top of the support frame 7; the bottom end of the infusion bottle 8 is connected with a Murphy's dropper 5 through an infusion tube 10, and the optical fiber sensing unit 1 is clamped and fixed at the infusion tube 10 at the upper end of the Murphy's dropper 5.
The photoelectric detection unit 2 and the alarm unit 3 are provided with a shell, the spectrometer 22, the light source 21, the optical fiber coupler 23 and the single chip microcomputer are placed in the shell, and the Bluetooth module 32, the buzzer alarm, the light alarm, the start-stop switch and the sound switch are embedded on the surface of the shell; the surface of the shell is also provided with a through hole which is not shown. A power supply module is also arranged in the shell and supplies power to the spectrometer 22, the singlechip and the Bluetooth module 32. The Bluetooth module 32 can adopt HC-06 Bluetooth module; the circuit diagram is not shown. In addition, the single chip microcomputer can also output alarm signals through the WIFI module, the 4G mobile communication module and the like; and sending an alarm to remind medical staff to carry out related medical care operations.
As shown in fig. 1 and 2. One end of the first optical fiber 121 and the reflection surface of the second detection end 12 are respectively fixed on both sides of the infusion tube 10, and the smooth end surface of the first optical fiber 121 and the reflection surface of the first detection end 11 constitute a Fabry-Perot cavity, wherein the first optical fiber 121 itself serves as a transmission element for light input and light output. The interference light after the emergent light emitted by the first optical fiber 121 interferes with the reflected light of the reflecting surface is coupled into the first optical fiber 121 to form an interference light signal; the optical path of the Fabry-Perot cavity when liquid exists in the infusion tube 10 is larger than that when no liquid exists in the infusion tube 10, the generated interference signals are different, and the interference signals are demodulated through the photoelectric detection unit 2 at the rear end of the optical fiber sensing unit 1, so that whether the liquid exists in the infusion tube 10 at the moment can be known.
The technology that the singlechip 31 is connected with the spectrometer 22 through a DuPont line and identifies whether liquid exists in the infusion tube 10 through interference light signals is the prior mature technology.
The interference light signal is related to the refractive index n of the material in the Fabry-Perot cavity, namely the optical path of the Fabry-Perot cavity.
The refractive index of a typical liquid in a medical infusion bottle is approximately equal to 1 for air as shown in the table below.
| Liquid, method for producing the same and use thereof | Refractive index |
| Physiological saline | 1.334765 |
| Distilled water | 1.32850 |
| Glucose liquid | 1.34210 |
。
The infusion tube is characterized by further comprising a groove-shaped mounting frame 13, the front part and the upper and lower ends of the mounting frame 13 are both provided with openings, a first detection end 11 is fixedly arranged on the left side of an inner cavity of the mounting frame 13, a second detection end 12 is arranged on the right side of the inner cavity of the mounting frame 13, and the inner side of the second detection end 12 is arc-shaped and is matched with the outer wall of the infusion tube 10; an infusion tube 10 is arranged between the first detection end 11 and the second detection end 12 in a penetrating way; the other end of the first optical fiber 121 extends out of the photoelectric detection unit 2 through a first via hole 132 formed in the right side wall of the mounting frame 13.
The groove-shaped mounting frame 13 is used for mounting the optical fiber sensing unit 1, when the infusion tube 10 is placed between the first detection end 11 and the second detection end 12, and the arc inner side surface of the second detection end 12 is beneficial to fixing the optical fiber sensing unit 1 on the infusion tube 10 to prevent falling off.
A sliding plate 14 is fixedly arranged at the right end of the second detection end 12, and the sliding plate 14 is connected with the right inner wall of the mounting rack 13 through a spring 15; handles 141 are further disposed at the front and rear ends of the slide plate 14, the handle 141 at the rear end extends out of the mounting frame 13 through a slide hole 131 formed in the rear wall of the mounting frame 13, and the handle 141 at the rear end can slide left and right in the slide hole 131. The sled 14 is also provided with a via through which the first optical fiber 121 passes.
Firstly, the handles 141 at the front end and the rear end of the sliding plate 14 are grasped by one hand, the spring 15 is compressed towards the right side, the distance between the first detection end 11 and the second detection end 12 is increased, the infusion tube 10 is placed between the first detection end 11 and the second detection end 12 by the other hand, and the handles 141 are released; the second detection end 12 moves leftwards under the action of the restoring force of the spring 15, and the infusion tube 10 is clamped between the first detection end 11 and the second detection end 12; then, the start-stop switch of the singlechip 31 is turned on, the alarm unit 3 starts to work, when no liquid exists in the infusion bottle 8, the infusion tube 10 at the lower end of the infusion bottle 8 also has no liquid, at this time, the optical fiber sensing unit 1 triggers the alarm unit 3, the alarm unit 3 can transmit corresponding alarm information to a nurse station terminal through the Bluetooth module 32, and meanwhile, the buzzer alarm and the light alarm can be controlled to work, and the start-stop switch is pressed again; the buzzer alarm and the light alarm stop working.
The photoelectric detection unit 2 comprises a light source 21, a spectrometer 22 and an optical fiber coupler 23, wherein the light source 21 is connected with an input interface of the optical fiber coupler 23 through a second optical fiber 211, and the other end of the first optical fiber 121 is connected with a first connection interface of the optical fiber coupler 23; the spectrometer 22 is connected to the second connection interface of the fiber coupler 23 via a third optical fiber 221.
The photoelectric detection unit 2 is provided with a spectrometer 22, a light source 21 and an optical fiber coupler 23, the light source 21 is responsible for emitting test light and sending the test light to the optical fiber coupler 23 through a second optical fiber 211, the optical fiber coupler 23 is responsible for coupling the second optical fiber 211 connected with the light source 21, a first optical fiber 121 of the optical fiber sensing unit 1 and a third optical fiber 221 connected with the spectrometer 22 together, the spectrometer 22 converts an optical signal transmitted back by the first optical fiber 121 into an electric signal and transmits the electric signal to the alarm unit 3, when liquid in the infusion tube 10 is available or unavailable, signals collected in front and back of the optical fiber sensing unit 1 are changed, the rear end alarm unit 3 is triggered at the moment, and the alarm unit 3 sends an alarm to remind medical personnel of carrying out related medical care operations.
The fiber ends of the fiber coupler, which are connected with the fiber sensing unit 1, the connection light source 21 and the connection spectrometer 23, are all FC connectors.
The light source 21 is a laser light source.
The alarm unit 3 is provided with a single chip microcomputer 31, the signal output end of the spectrometer 22 is connected with the signal input end of the single chip microcomputer 31, and the single chip microcomputer 31 is further connected with a Bluetooth module 32, a buzzer alarm and a light alarm; the single chip microcomputer 31 is connected with a start-stop switch and a sound switch.
The alarm unit 3 is provided with a singlechip 31, the singlechip 31 is connected with a buzzer alarm, a light alarm and a Bluetooth module 32, the Bluetooth module 32 can transmit an alarm instruction to a nurse station terminal, and a sound switch can control whether the buzzer alarm buzzes or not; at night, the single chip microcomputer can acquire the instruction of the sound switch to control the buzzer alarm to stop sounding, so that the influence on other people to sleep is avoided. The start-stop switch can control the start and stop of the alarm unit 3. After the nurse installs the photoelectric detection unit 2 on the infusion tube 10, the start-stop switch can be pressed to control the alarm unit 3 to start working; after the transfusion is finished, the start-stop switch is pressed again to control the alarm unit 3 to stop working.
The singlechip 31 can be an stc89c52 singlechip or an STM32 singlechip. The spectrometer 22 is connected with the single chip microcomputer 31 through a corresponding interface to send a detection signal to the single chip microcomputer, and an output detection signal of the photoelectric detection unit 2 can be connected with the stc89c52 single chip microcomputer through the interface P34 and the interface P37. The port BEEP of the buzzer alarm is connected with a corresponding control pin of the stc89c52 singlechip, and the other port is connected with a power supply VCC through a 100R resistor. The negative electrodes of the eight LED lamps D1-D8 are connected with a port from P20 to P27 of the stc89c52 singlechip through corresponding resistors, and the positive electrodes of the eight LED lamps D1-D8 are connected with a power supply VCC.
When the electric signal of the photoelectric detection unit 2 is normal, when the infusion tube 10 has liquid and can not trigger a signal, the P34 input signal is 0, when the infusion tube 10 has no liquid, the input signal is changed into 1, the light alarm and the buzzer alarm are driven to give an alarm, the light alarm and the buzzer alarm are controlled by the singlechip 31 to continuously give an alarm in one minute, and meanwhile, the alarm is given out through the Bluetooth module 32, and the alarm is not given out after the reset signal is manually pressed.
Preferably, a time delay device is arranged in the single chip 31, when the single chip 31 obtains the trigger signal, the trigger signal is detected again after time delay of 10-30 seconds through the time delay device, and if the trigger signal still exists, alarm is started.
As shown in fig. 1 and 3, the mounting frame 13 is further provided with a clamping and stopping device 4; the clamping and stopping device 4 is arranged below the first detection end 11 and the second detection end 12, and the clamping and stopping device 4 comprises a rubber backing plate 41, a square clamping plate 42, an end cover 43 and a screw rod motor 44; the rubber backing plate 41 is arranged on the inner wall of the left side of the mounting frame 13, the clamping plate 42 is arranged on the right side of the inner cavity of the mounting frame 13 in a sliding mode and is opposite to the rubber backing plate 41, the clamping plate 42 can slide left and right along the rear wall of the inner cavity of the mounting frame 13, the end cover 43 is fixedly arranged on the right side wall of the clamping plate 42, the screw rod motor 44 is arranged on the outer wall of the right side of the mounting frame 13, the left end of a screw rod 441 of the screw rod motor 44 extends into the inner cavity of the mounting frame 13 through a second through hole formed in the right side wall of the mounting frame 13, the left end of the screw rod 441 extends into the end cover 43 through a through hole formed in the right side wall of the end cover 43, the left end of the screw rod 441 is connected with an end 442, the end 442 is located in the end cover 43, and the outer diameter of the end 442 is larger than that of the corresponding through hole formed in the right side wall of the end cover 43; the alarm unit 3 is connected with a screw motor 44 through a motor driving module to drive the screw motor to rotate; the alarm unit 3 is connected with a motor reset switch. The lead screw motor 44 is a through-type lead screw motor.
The effect that above-mentioned structure set up does: when the liquid in the infusion tube 10 is changed from the existence to the nonexistence, the signals collected from the front and the back of the optical fiber sensing unit 1 are changed, the rear end alarm unit 3 is triggered at the moment, and the alarm unit 3 sends out an alarm to remind medical staff of carrying out related medical care operation; meanwhile, the alarm unit 3 is connected with a screw motor 44 through a motor driving module to drive the screw motor to rotate in the positive direction; the left end of the screw rod 441 moves leftwards to push the clamping plate 42 to slide leftwards until the infusion tube 10 is clamped; when a motor reset switch is pressed, the alarm unit 3 is connected with a screw motor 44 through a motor driving module to drive the screw motor to rotate reversely; the left end of the screw 441 moves to the right, and pushes the clamp plate 42 to slide to the right until the infusion tube 10 is released.
By the device, when no liquid exists in the infusion tube 10, the automatic clamping and stopping can be realized by the clamping and stopping device 4; the above structure helps prevent medical personnel from accidents due to alarm fatigue that does not shut down the infusion tube 10 in time.
A limiting plate 42a is fixedly arranged at the front end of the clamping plate 42, and the limiting plate 42a extends towards the left side of the mounting frame 13 to prevent the infusion tube 10 from sliding out of the mounting frame 13 in the clamping and stopping process.
A rotary baffle plate can be arranged on one side of the front end of the mounting frame 13, and the front end opening of the mounting frame 13 is blocked or opened through the rotation of the baffle plate, so that the infusion tube 10 is prevented from sliding out of the mounting frame 13; the figure is omitted.
Finally, it is noted that: the above list is only the concrete implementation example of the present invention, and of course those skilled in the art can make modifications and variations to the present invention, and if these modifications and variations fall within the scope of the claims of the present invention and their equivalent technology, they should be considered as the protection scope of the present invention.
Claims (5)
1. The infusion detection device based on the optical fiber Fabry-Perot detection principle is characterized by comprising an optical fiber sensing unit (1), wherein the optical fiber sensing unit (1) is arranged on an infusion tube (10) and is used for detecting whether the infusion tube (10) contains liquid or not; the optical fiber sensing unit (1) is provided with a first detection end (11) and a second detection end (12), the first detection end (11) and the second detection end (12) are respectively positioned at two sides of the infusion tube (10) and are abutted against the outer wall of the infusion tube (10), the end face, close to the infusion tube (10), of the first detection end (11) is a reflection surface, a first optical fiber (121) penetrates through the second detection end (12), and one end of the first optical fiber (121) is abutted against the outer wall of the infusion tube (10) and corresponds to the reflection surface; the other end of the first optical fiber (121) is used for connecting the photoelectric detection unit (2).
2. The infusion detection device based on the fiber-optic Fabry-Perot detection principle according to claim 1, characterized in that: the infusion tube is characterized by further comprising a groove-shaped mounting frame (13), the front part and the upper and lower ends of the mounting frame (13) are both opened, a first detection end (11) is fixedly arranged on the left side of an inner cavity of the mounting frame (13), a second detection end (12) is arranged on the right side of the inner cavity of the mounting frame (13), and the inner side of the second detection end (12) is arc-shaped and is matched with the outer wall of the infusion tube (10); an infusion tube (10) is arranged between the first detection end (11) and the second detection end (12) in a penetrating way; the other end of the first optical fiber (121) extends out of the mounting frame (13) through a first through hole (132) formed in the right side wall of the mounting frame (13).
3. The infusion detection device based on the fiber-optic Fabry-Perot detection principle according to claim 2, characterized in that: a sliding plate (14) is fixedly arranged at the right end of the second detection end (12), and the sliding plate (14) is connected with the inner wall of the right side of the mounting rack (13) through a spring (15); handles (141) are further arranged at the front end and the rear end of the sliding plate (14), the handle (141) at the rear end extends out of the mounting rack (13) through a sliding hole (131) formed in the rear wall of the mounting rack (13), and the handle (141) at the rear end can slide left and right in the sliding hole (131).
4. The infusion detection device based on the fiber-optic Fabry-Perot detection principle according to claim 2, characterized in that: the mounting frame (13) is also provided with a clamping and stopping device (4); the clamping and stopping device (4) is arranged below the first detection end (11) and the second detection end (12), and the clamping and stopping device (4) comprises a rubber base plate (41), a square clamping plate (42), an end cover (43) and a screw rod motor (44); rubber tie plate (41) sets up in the left side inner wall of mounting bracket (13), and splint (42) slide and set up in the inner chamber right side of mounting bracket (13) and just to rubber tie plate (41), the fixed end cover (43) that is provided with of right side wall of splint (42), lead screw motor (44) are installed to the right side outer wall of mounting bracket (13), and lead screw (441) left end of lead screw motor (44) stretches into mounting bracket (13) inner chamber through the second via hole that mounting bracket (13) right side wall was seted up, and lead screw (441) left end stretches into in end cover (43) through the through-hole that end cover (43) right side wall was seted up, and lead screw (441) left end is connected with end (442), and end (442) are located end cover (43).
5. The infusion detection device based on the fiber-optic Fabry-Perot detection principle according to claim 2, characterized in that: the lower end opening of the mounting rack (13) is abutted against the upper end of the Murphy tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509712.8U CN215068598U (en) | 2021-07-05 | 2021-07-05 | Infusion detection device based on optical fiber Fabry-Perot detection principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509712.8U CN215068598U (en) | 2021-07-05 | 2021-07-05 | Infusion detection device based on optical fiber Fabry-Perot detection principle |
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