CN202314705U

CN202314705U - Transfusion alarm

Info

Publication number: CN202314705U
Application number: CN201120461858XU
Authority: CN
Inventors: 包云芸
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-14
Filing date: 2011-11-14
Publication date: 2012-07-11
Anticipated expiration: 2021-11-14

Abstract

The utility model relates to a transfusion alarm, which comprises a liquid level detection device and an alarming device, wherein the liquid level detection device comprises a puncture needle body, a light emitting diode, a light sensitive diode, a floater, a first optical fiber and a second optical fiber. The transfusion alarm has the advantages of novel structure and low manufacture cost, is safe and reliable, is convenient to use and is suitable for mass production. The liquid level is detected by the photoelectric principle, i.e. a signal is transferred to the alarming device via an optical fiber, so that the transfusion alarm has high alarming accuracy, is not affected by the liquid medicine container, liquid medicine and the like and does not generate electrolytic reaction to the liquid medicine. In the transfusion alarm, the light emitting diode, the light sensitive diode and the optical fiber are all packaged in the puncture needle body, and therefore the transfusion alarm has the characteristics of high reliability and the like and is convenient to disinfect. In the transfusion alarm, the liquid level detection device and the alarming device can be separated, and the liquid level detection device can serve as a disposable device to guarantee safety. The alarming device can be reused, and therefore, the transfusion alarm has the characteristics of energy conservation, environmental friendliness and the like.

Description

Infusion alarm

Technical field

This utility model relates to the auxiliary alarming device of a kind of medical infusion, particularly a kind of infusion alarm.

Background technology

The autoalarm of medical infusion has multiple principle, like weighing principle, electrode principle, float principle, capacitance principle, vibration principle, photovoltaic principals etc.The relatively poor complex structure of weighing principle precision wherein, the electrode principle possibly produce reaction to medicinal liquid, and capacitance principle and vibration principle cost are higher, and factors such as float theory structure complicacy are so far in hospital, being used on a large scale.Make that infusion alarm is simple in structure, cost is low, low in energy consumption, reliable and stable, do not pollute medicinal liquid, be fit to various medicinal liquids, really make things convenient for hospital and patient to use, must continue improvement.

Summary of the invention

The purpose of this utility model is exactly the weak point in the background technology, and a kind of infusion alarm is provided.

For achieving the above object; This utility model adopts following technical scheme: infusion alarm; Comprise liquid level sensor and alarm device, said liquid level sensor comprises puncture needle body, light emitting diode, light sensitive diode, float, first optical fiber and second optical fiber, and said puncture needle body comprises syringe needle, the needle stand that is connected with syringe needle; The syringe needle upper end is provided with the flow of liquid port near the needle point place; First optical fiber and second optical fiber axially are encapsulated in respectively in the syringe needle between flow of liquid port and the needle stand, are provided with the float that can cover first optical fiber, second optical fiber upper end port in the flow of liquid port, and this float lower end is coated with reflectorized material; Be encapsulated in the needle stand respectively after Light-Emitting Diode, the light sensitive diode serial connection; And the lower end with first optical fiber, second optical fiber is communicated with respectively, two power lines at serial connection back Light-Emitting Diode and light sensitive diode two ends and be connected in Light-Emitting Diode and light sensitive diode between ground wire on the circuit stretch out respectively outside the needle stand, said alarm device connects with power line, ground wire respectively.

A kind of optimization for this utility model; Said alarm device comprises signal warning lamp, buzzer, power supply; End after signal warning lamp and the buzzer parallel connection is connected with positive source or negative pole; Its other end is communicated with the power line of light sensitive diode, and the positive and negative end of power supply is connected to form the loop with power line, the ground wire at Light-Emitting Diode two ends respectively.

A kind of optimization for this utility model; Said alarm device comprises signal warning lamp, buzzer, power supply, single-chip microcomputer; End after signal warning lamp and the buzzer parallel connection is connected with single-chip microcomputer; Calling system control connection on its other end and the sick bed, power positive cathode two ends are connected with power line, the ground wire at single-chip microcomputer and Light-Emitting Diode two ends respectively, and the power line of said light sensitive diode is connected with single-chip microcomputer.

A kind of optimization for this utility model; Said alarm device comprises that also wireless signal transmitter, ID number are provided with circuit, wireless signal receiver, receiving terminal single-chip microcomputer, nurse station terminal; ID number circuit, wireless signal transmitter being set is connected with single-chip microcomputer respectively; Nurse station terminal, wireless signal receiver are connected with the receiving terminal single-chip microcomputer respectively, and wireless signal transmitter is connected with the wireless signal receiver wireless network.

A kind of optimization for this utility model; Said flow of liquid port comprises with the concentric concentric holes of syringe needle and is communicated with concentric holes and the connected entrance of syringe needle outer wall; Said first optical fiber, second optical fiber upper end maintain an equal level with the axial diapire of concentric holes; Said float is positioned at the light path top on concentric holes first optical fiber, second optical fiber, and said float upper end is taper, and the concentric holes upper end is provided with the awl mouth.

For a kind of optimization of this utility model, the puncture needle body adopts opaque material to process, and said float adopts medical material to process replaceable one-tenth phototriode of said light sensitive diode or photoconductive resistance.

A kind of optimization for this utility model; The replaceable one-tenth of said float cross section is the prism of isosceles trapezoid shape; This prism lower end covers on first optical fiber, second optical fiber upper end port; And it is relative with side, prismatical both sides respectively that the port of said first optical fiber, second optical fiber upper end sees through prismatical lower surface, and the side of said prism both sides is obliquely.

For a kind of optimization of this utility model, the replaceable one-tenth glass fiber of said optical fiber.

For a kind of optimization of this utility model, connect through terminal between liquid level sensor and the alarm device.

A kind of method for using of infusion alarm comprises the medical liquid container that is provided with bottle stopper, and this medical liquid container is the bottle stopper end and is provided with down; The needle section lease making bottle stopper of puncture needle body is inserted in the medical liquid container, make the flow of liquid port of syringe needle be positioned at medical liquid container, because the effect of medicinal liquid; Float in the flow of liquid port, float to this liquid communication bore to chamber, upper end wall, then with alarm device respectively with needle stand on power line, ground wire connect, this moment float floated to a high position; The liquid level sensor energising is started working; The light that Light-Emitting Diode sends is passed in the medicinal liquid through first optical fiber, and the reflecting surface through the float lower end reflects in medicinal liquid then, is passed to light sensitive diode by the acceptance of second optical fiber and with the light that receives; Light sensitive diode sends a signal to alarm device, and this moment, alarm device did not send alarm signal; When the medicinal liquid liquid level progressively descends, when being lower than the flow of liquid port position of puncture needle body, float progressively descends under action of gravity; Up to the float lower surface light path of first optical fiber, second optical fiber upper end is covered when blocking fully, at this moment, the light that Light-Emitting Diode sends can't get into medicinal liquid through first optical fiber; More can't arrive light sensitive diode through second optical fiber; Therefore, light sensitive diode will not produce low level signal because of receiving optical signal, trigger alarm device and produce alarm signal.

This utility model is compared with background technology, have simple in structure, safe and reliable, low cost of manufacture, easy to use, be fit to produce in enormous quantities; Utilize photovoltaic principals to detect liquid level, promptly transmit signal to alarm device with optical fiber, it is high to have the caution accuracy, does not receive factor affecting such as medical liquid container, medicinal liquid, can be to the medicinal liquid reaction that produces electrolysis; This device all is encapsulated in light emitting diode, light sensitive diode and optical fiber in the puncture needle body has characteristics such as reliability height, convenient sterilizing; This device can separate liquid level sensor with alarm device, can guarantee safety with liquid level sensor as disposable device, and wherein alarm device is reusable, has characteristics such as energy-conserving and environment-protective.

Description of drawings

Fig. 1 is the structural representation of liquid level sensor.

Fig. 2 is the principle schematic of liquid level sensor and alarm device combination in the infusion alarm.

Fig. 3 is the principle schematic of liquid level sensor and a kind of alarm device combination in the infusion alarm.

Fig. 4 is the principle schematic of liquid level sensor and another kind of alarm device combination in the infusion alarm.

Fig. 5 is the user mode figure when around prism, having medicinal liquid to cover.

Fig. 6 is user mode figure when around prism, not having medicinal liquid to cover.

The specific embodiment

Embodiment 1: with reference to Fig. 1～4.Infusion alarm comprises liquid level sensor and alarm device, connects through terminal 20 between liquid level sensor and the alarm device.Said liquid level sensor comprises puncture needle body, light emitting diode 3, light sensitive diode 4, float 7, first optical fiber 5 and second optical fiber 6; Said puncture needle body comprises syringe needle 1, the needle stand 2 that is connected with syringe needle 1; Syringe needle 1 upper end is provided with flow of liquid port 1a near the needle point place; First optical fiber 5 and second optical fiber 6 axially are encapsulated in respectively in the syringe needle 1 between flow of liquid port 1a and the needle stand 2; Be provided with the float 7 that can cover first optical fiber 5, second optical fiber, 6 upper end ports in the flow of liquid port 1a; These float 7 lower ends are coated with reflectorized material 7a, are encapsulated in respectively in the needle stand 2 after Light-Emitting Diode 3, light sensitive diode 4 serial connections, and are communicated with the lower end of first optical fiber 5, second optical fiber 6 respectively; Two power lines 8 and the power lines 10 at serial connection back Light-Emitting Diode 3 and light sensitive diode 4 two ends and be connected in Light-Emitting Diode 3 and light sensitive diode 4 between ground wire 9 on the circuit stretch out respectively outside the needle stand 2, said alarm device connects with power line 8 and power line 10 and ground wire 9 respectively.The puncture needle body adopts opaque material to process, and said float 7 adopts medical material to process.

Embodiment 2: with reference to Fig. 1 and 2.Said alarm device comprises signal warning lamp 12, buzzer 13, power supply 11; End after signal warning lamp 12 and buzzer 13 parallel connections is connected with power supply 11 negative or positive electrodes; Its other end is communicated with the power line 10 of light sensitive diode 4, and the positive and negative end of power supply 11 is connected to form the loop with power line 8, the ground wire 9 at Light-Emitting Diode 3 two ends respectively.

Embodiment 3: with reference to Fig. 1 and 3.Said alarm device comprises signal warning lamp 12, buzzer 13, power supply 11, single-chip microcomputer 15; End after signal warning lamp 12 and buzzer 13 parallel connections is connected with single-chip microcomputer 15; Calling system 14 control connections on its other end and the sick bed; Power supply 11 positive and negative ends are connected with power line 8, the ground wire 9 at single-chip microcomputer 15 and Light-Emitting Diode 3 two ends respectively, and the power line 10 of said light sensitive diode 4 is connected with single-chip microcomputer 15.

Embodiment 4: with reference to Fig. 1,3 and 4.On the basis of embodiment 3; Said alarm device comprises that also wireless signal transmitter 16, ID number are provided with circuit 21, wireless signal receiver 17, receiving terminal single-chip microcomputer 18, nurse station terminal 19; Circuit 21, wireless signal transmitter 16 are set for ID number to be connected with single-chip microcomputer 15 respectively; Nurse station terminal 19, wireless signal receiver 17 are connected with receiving terminal single-chip microcomputer 18 respectively, and wireless signal transmitter 16 is connected with wireless signal receiver 17 wireless networks.

Embodiment 5: with reference to Fig. 1.Said flow of liquid port 1a comprises with the concentric concentric holes 1a-1 of syringe needle and is communicated with concentric holes 1a-1 and the connected entrance 1a-2 of syringe needle 1 outer wall; Said first optical fiber 5, second optical fiber, 6 upper ends and the axial diapire of concentric holes 1a-1 maintain an equal level; Said float 7 is positioned at the light path top of concentric holes 1a-1 first optical fiber 5, second optical fiber, 6 upper ends; Said float 7 upper ends are taper, and concentric holes 1a-1 upper end is provided with awl mouthful 1a-3.

Embodiment 6.With reference to Fig. 1～4.On the basis of embodiment 1, said light sensitive diode 4 replaceable one-tenth phototriode or photoconductive resistance.Said first optical fiber 5 and second optical fiber 6 is replaceable to become glass fiber.

Embodiment 7: with reference to Fig. 1～4.A kind of infusion alarm method for using comprises the medical liquid container that is provided with bottle stopper, and this medical liquid container is the bottle stopper end and is provided with down; With syringe needle 1 part of puncture needle body in bottle stopper inserts medical liquid container; Make the flow of liquid port 1a of syringe needle 1 be positioned at medical liquid container because the effect of medicinal liquid, float 7 in flow of liquid port 1a, float to this flow of liquid port 1a radially on the chamber wall; Then with alarm device respectively with needle stand 2 on power line 8 power line 10, ground wire 9 connect; This moment, float 7 floated to a high position, and the liquid level sensor energising is started working, and the light that Light-Emitting Diode 3 sends is passed in the medicinal liquid through first optical fiber 5; Reflecting surface through float 7 lower ends reflects in medicinal liquid then; Be passed to light sensitive diode 4 by 6 acceptance of second optical fiber and with the light that receives, light sensitive diode 4 sends a signal to alarm device, and this moment, alarm device did not send alarm signal; When the medicinal liquid liquid level progressively descends; When being lower than the flow of liquid port 1a position of puncture needle body, float 7 progressively descends under action of gravity, up to float 7 lower surfaces the light path of first optical fiber 5, second optical fiber, 6 upper ends is covered when blocking fully; At this moment; The light that Light-Emitting Diode 3 sends can't get into medicinal liquid through first optical fiber 5, more can't arrive light sensitive diode 4 through second optical fiber 6, therefore; Light sensitive diode 4 will not produce low level signal because of receiving optical signal, trigger alarm device and produce alarm signal.

Embodiment 8: with reference to Fig. 5 and 6.On the basis of embodiment 1; The replaceable one-tenth of said float cross section is the prism 77 of isosceles trapezoid shape; These prism 77 lower ends cover on first optical fiber 5, second optical fiber, the 6 upper end ports; And it is relative with the side, both sides of prism 77 respectively that the port of said first optical fiber 5, second optical fiber, 6 upper ends sees through the lower surface of prism 77, and the side of said prism 77 both sides is obliquely.When not having medicinal liquid around the prism 77, according to special prism angle, light is experiences total internal reflection in prism 77.When prism 77 was covered by medicinal liquid, light is experiences total internal reflection not in prism 77 sides, and got into medicinal liquid, and the light that gets into second optical fiber 6 is almost nil.

Embodiment 9: connect through terminal 20 between liquid level sensor and the alarm device; Wherein can light emitting diode 3, light sensitive diode 4 be combined as a whole with alarm device; The puncture needle body and the float 7 of packaged fiber 5 and optical fiber 6 in said liquid level sensor only comprises contain light emitting diode 3, light sensitive diode 4 connects through terminal 20 with the puncture needle body that only comprises interior packaged fiber and the liquid level sensor of float 7 with alarm device thus.

Some specific embodiment described herein only are that this utility model spirit is illustrated.Person skilled can do various modifications, replenishes or adopt similar mode to substitute to the specific embodiment described herein, but can't depart from the spirit of this utility model or surmount the defined scope of appended claims.

Claims

1. infusion alarm; Comprise liquid level sensor and alarm device; It is characterized in that: said liquid level sensor comprises puncture needle body, light emitting diode, light sensitive diode, float, first optical fiber and second optical fiber; Said puncture needle body comprises syringe needle, the needle stand that is connected with syringe needle, and the syringe needle upper end is provided with the flow of liquid port near the needle point place, and first optical fiber and second optical fiber axially are encapsulated in respectively in the syringe needle between flow of liquid port and the needle stand; Be provided with the float that can cover first optical fiber, second optical fiber upper end port in the flow of liquid port; This float lower end is coated with reflectorized material, is encapsulated in the needle stand respectively after Light-Emitting Diode, the light sensitive diode serial connection, and is communicated with the lower end of first optical fiber, second optical fiber respectively; Two power lines at serial connection back Light-Emitting Diode and light sensitive diode two ends and be connected in Light-Emitting Diode and light sensitive diode between ground wire on the circuit stretch out respectively outside the needle stand, said alarm device connects with power line, ground wire respectively.

2. infusion alarm according to claim 1; It is characterized in that: said alarm device comprises signal warning lamp, buzzer, power supply; End after signal warning lamp and the buzzer parallel connection is connected with positive source or negative pole; Its other end is communicated with the power line of light sensitive diode, and the positive and negative end of power supply is connected to form the loop with power line, the ground wire at Light-Emitting Diode two ends respectively.

3. infusion alarm according to claim 1; It is characterized in that: said alarm device comprises signal warning lamp, buzzer, power supply, single-chip microcomputer; End after signal warning lamp and the buzzer parallel connection is connected with single-chip microcomputer; Calling system control connection on its other end and the sick bed, power positive cathode two ends are connected with power line, the ground wire at single-chip microcomputer and Light-Emitting Diode two ends respectively, and the power line of said light sensitive diode is connected with single-chip microcomputer.

4. infusion alarm according to claim 3; It is characterized in that: said alarm device comprises that also wireless signal transmitter, ID number are provided with circuit, wireless signal receiver, receiving terminal single-chip microcomputer, nurse station terminal; ID number circuit, wireless signal transmitter being set is connected with single-chip microcomputer respectively; Nurse station terminal, wireless signal receiver are connected with the receiving terminal single-chip microcomputer respectively, and wireless signal transmitter is connected with the wireless signal receiver wireless network.

5. infusion alarm according to claim 1; It is characterized in that: said flow of liquid port comprises with the concentric concentric holes of syringe needle and is communicated with concentric holes and the connected entrance of syringe needle outer wall; Said first optical fiber, second optical fiber upper end maintain an equal level with the axial diapire of concentric holes; Said float is positioned at the light path top on concentric holes first optical fiber, second optical fiber, and said float upper end is taper, and the concentric holes upper end is provided with the awl mouth.

6. infusion alarm according to claim 1 is characterized in that: the puncture needle body adopts opaque material to process, and said float adopts medical material to process.

7. infusion alarm according to claim 1 is characterized in that: replaceable one-tenth phototriode of said light sensitive diode or photoconductive resistance.

8. infusion alarm according to claim 1; It is characterized in that: the replaceable one-tenth of said float cross section is the prism of isosceles trapezoid shape; This prism lower end covers on first optical fiber, second optical fiber upper end port; And it is relative with side, prismatical both sides respectively that the port of said first optical fiber, second optical fiber upper end sees through prismatical lower surface, and the side of said prism both sides is obliquely.

9. infusion alarm according to claim 1 is characterized in that: the replaceable one-tenth glass fiber of said optical fiber.

10. infusion alarm according to claim 1 is characterized in that: connect through terminal between liquid level sensor and the alarm device.