CN205198597U - Hospital ward automatic warning device that infuses - Google Patents
Hospital ward automatic warning device that infuses Download PDFInfo
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- CN205198597U CN205198597U CN201520722209.9U CN201520722209U CN205198597U CN 205198597 U CN205198597 U CN 205198597U CN 201520722209 U CN201520722209 U CN 201520722209U CN 205198597 U CN205198597 U CN 205198597U
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- main shaft
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- medicine bottle
- spring
- microprocessor
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Abstract
The utility model discloses a hospital ward automatic warning device that infuses, be used for gathering the medicine bottle weighing device that on -the -spot weight signal processing transmitting element was given in medicine bottle weight information and transmission including on -the -spot weight signal processing transmitting element, the main control unit of nurse station, one, the medicine bottle weighing device includes that main shaft, main shaft support cover etc. A tip of main shaft is equipped with the couple that hangs the medicine bottle, and another tip is equipped with the blind hole that is used for placing the magnet steel, and the middle part cover is equipped with a spring, hall sensor fixes directly over the magnet steel, and leaves the clearance, along with the infusion is gone on, the liquid medicine in the medicine bottle reduces gradually, and the flexible volume of spring changes, makes the main shaft support the cover for the main shaft and produces axial displacement, has changed the distance between magnet steel and the hall sensor, makes hall sensor's output voltage change. Its simple structure, safe and reliable, in the anxiety and working strength that lightens the nurse greatly, pacified patient the mood, improved the medical services of hospital quality.
Description
Technical field
This utility model relates to the monitoring of hospital ward transfusion, particularly relates to a kind of hospital ward transfusion automatic warning device.
Background technology
Ward between how modern hospital in-patient department has, transfusion of having an injection is the routine work that nurses will carry out every day.But because nurse is few, Bing Renduo, nurses constantly will make an inspection tour and check each ward situation, so that injection or termination injection again after changing new drug in time.If do not processed in time after former infusion bottle is emptying, backflow of blood may be caused to enter tube for transfusion, cause malpractice.Particularly at night, when patient's lethargy and nobody sees that when looking, the Timeliness coverage of having infused and handling problems will extremely highlight.Advocate the today of improving medical service quality, eliminate the real common recognition becoming each hospital of this type of hidden danger.
Summary of the invention
The purpose of this utility model is the shortcoming and defect overcoming above-mentioned prior art, there is provided a kind of when infuse be near completion or complete time, can warn in time hospital ward transfusion automatic warning device, its structure is simple, safe and reliable, easy to use, while the anxiety greatly alleviating nurse and working strength, better pacify the emotion of patient, improve medical service of hospital quality.
This utility model is achieved through the following technical solutions:
A kind of hospital ward transfusion automatic warning device, comprise on-the-spot weight signal process transmitting element, nurse station master controller, one for gathering medicine bottle weight information and passing to the medicine bottle weighing device of on-the-spot weight signal process transmitting element, described medicine bottle weighing device comprises main shaft 8, main shaft support cover 11, hollow locking nut 12;
An end of described main shaft 8 is provided with one for hanging the hook 7 of medicine bottle, and another end is provided with the blind hole 10 for placing magnet steel, and middle part is arranged with a spring 8-1;
It is main shaft orientation hole 11-1 that described main shaft support overlaps 11 one end, and the other end is the spring container cavity 11-2 of spring 8-1;
Described main shaft support overlaps the 11 sheathed middle parts with main shaft 8, and hook 7 end of main shaft 8 is through spring 8-1 and to stretch out main shaft orientation hole 11-1 outside; Another end of main shaft 8 stretches out the outside of spring container cavity 11-2;
One end and the main shaft orientation hole 11-1 of spring 8-1 offset, the other end with offseted by the jump ring 9 be buckled on main shaft 8 jump-ring slot 8-2; Spring 8-1, jump ring 9 and main shaft 8 are limited in main shaft support cover 11 by the hollow locking nut 12 being arranged on this end of spring container cavity 11-2;
Magnet steel is fixed in blind hole 10, and Hall element 19 is fixed on directly over magnet steel, leaves gap between magnet steel and Hall element 19;
Medicine bottle hangs on hook 7, along with transfusion is carried out, medicinal liquid in medicine bottle reduces gradually, spring 8-1 stroke changes, main shaft 8 is made to produce axial displacement relative to main shaft support cover 11, change the distance between magnet steel and Hall element 19, the output voltage signal of Hall element 19 is changed.
Described on-the-spot weight signal process and transmitting element comprise: for gathering the Hall element 19 of medicine bottle weight, signal adjustment circuit 18, microprocessor second 17, circuit noise filter circuit second 13, CAN driver second 14, photoelectric isolating circuit second 15 and CAN controller second 16; Described Hall element 19 connects microprocessor second 17 by signal adjustment circuit 18; Described circuit noise filter circuit second 13 connects CAN driver second 14, photoelectric isolating circuit second 15, CAN controller second 16 and microprocessor second 17 successively.
Described microprocessor second 17 also connects LCD MODULE 22 respectively and three-color LED door dodges 4.
Described nurse station master controller comprises: circuit noise wave filter first 23, CAN driver first 24, photoelectric isolating circuit first 25, CAN controller first 26, microprocessor first 27, display device, acousto-optic hint device; Described circuit noise wave filter first 23 connects CAN driver first 24, photoelectric isolating circuit first 25, CAN controller first 26 and microprocessor first 27 successively; Described display device is connected microprocessor first 27 respectively with acousto-optic suggestion device.
Described display device comprises LED digital display device 28 and decoder driver circuit.
Described acousto-optic hint device comprises described buzzer 30, three-color LED light group 32 and drive circuit 31 thereof.Described microprocessor first 27 also connects keyboard and interface circuit, RS-232 serial line interface.
This utility model, relative to prior art, has following advantage and effect:
This utility model have employed medicine bottle weighing device, and infusion bottle is suspended on hook; When patient starts to infuse, because the medicinal liquid in infusion bottle is more, now due to the effect of gravity, the distance between magnet steel and Hall element farthest; Along with the propelling of time, medicinal liquid in medicine bottle reduces gradually, weight alleviates gradually, now, main shaft constantly axially moves upward under the action of the spring, and then the distance between the magnet steel in groove and Hall element is shortened gradually, finally make the output voltage signal of Hall element also change.This voltage signal is sent to signal adjustment circuit by Hall element, microprocessor second is flowed to again by signal adjustment circuit, after the process of microprocessor second, by the information of this infusion bottle inner liquid medicine amount by Liquid Crystal Module and three-color LED gate light reminder alarm care provider, allow nurse on duty just can find and understand the real-time transfusion condition of each ward in nurse station or passageway, corridor, so that they can dispose in time, this is for the anxiety and the working strength that alleviate nurse, pacify patient's emotion, improve medical service of hospital quality and all will bring very large help.
Accompanying drawing explanation
Fig. 1 is the medicine bottle weighting device structure schematic diagram one of this utility model hospital ward transfusion automatic warning device.
Fig. 2 is the medicine bottle weighting device structure schematic diagram two of this utility model hospital ward transfusion automatic warning device.
Fig. 3 is the medicine bottle weighting device structure schematic diagram three of this utility model hospital ward transfusion automatic warning device.
Fig. 4 is the medicine bottle weighing device assembling schematic diagram of this utility model hospital ward transfusion automatic warning device.
Fig. 5 is on-the-spot weight signal process and the transmitting element block diagram of this utility model hospital ward transfusion automatic warning device.
Fig. 6 is the nurse station Host Controller Architecture block diagram of this utility model hospital ward transfusion automatic warning device.
The schematic diagram of the on-the-spot weight signal process of Fig. 7 Fig. 6 and transmitting element circuit.
Fig. 8 is the schematic diagram of Fig. 7 nurse station main controller circuit.
Fig. 9 is the schematic diagram of decoder driver circuit.
Figure 10 is the schematic diagram of three-color LED light group drive circuit.
Figure 11 is nurse station master controller panel schematic diagram.
Figure 12 is the panel schematic diagram of on-the-spot weight signal process and transmitting element.
Figure 13 is the topology diagram of this utility model hospital ward transfusion automatic warning device.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is more specifically described in detail.
Embodiment
As shown in Fig. 1 to 13.This utility model hospital ward transfusion automatic warning device, comprise on-the-spot weight signal process transmitting element, nurse station master controller, one for gathering medicine bottle weight information and passing to the medicine bottle weighing device of on-the-spot weight signal process transmitting element, described medicine bottle weighing device comprises main shaft 8, main shaft support cover 11, hollow locking nut 12;
An end of described main shaft 8 is provided with one for hanging the hook 7 of medicine bottle, and another end is provided with the blind hole 10 for placing magnet steel, and middle part is arranged with a spring 8-1;
It is main shaft orientation hole 11-1 that described main shaft support overlaps 11 one end, and the other end is the spring container cavity 11-2 of spring 8-1;
Described main shaft support overlaps the 11 sheathed middle parts with main shaft 8, and hook 7 end of main shaft 8 is through spring 8-1 and to stretch out main shaft orientation hole 11-1 outside; Another end of main shaft 8 stretches out the outside of spring container cavity 11-2;
One end and the main shaft orientation hole 11-1 of spring 8-1 offset, the other end with offseted by the jump ring 9 be buckled on main shaft 8 jump-ring slot 8-2; Spring 8-1, jump ring 9 and main shaft 8 are limited in main shaft support cover 11 by the hollow locking nut 12 being arranged on this end of spring container cavity 11-2;
Magnet steel is fixed in blind hole 10, and Hall element 19 is fixed on directly over magnet steel, leaves gap between magnet steel and Hall element 19;
Medicine bottle hangs on hook 7, along with transfusion is carried out, medicinal liquid in medicine bottle reduces gradually, spring 8-1 stroke changes, main shaft 8 is made to produce axial displacement relative to main shaft support cover 11, change the distance between magnet steel and Hall element 19, the output voltage signal of Hall element 19 is changed.
Described on-the-spot weight signal process and transmitting element comprise: for gathering the Hall element 19 of medicine bottle weight, signal adjustment circuit 18, microprocessor second 17 (internal element such as CPU2, A/D converter, I/O interface), circuit noise filter circuit second 13, CAN driver second 14, photoelectric isolating circuit second 15 and CAN controller second 16; Described Hall element 19 connects microprocessor second 17 by signal adjustment circuit 18; Described circuit noise filter circuit second 13 connects CAN driver second 14, photoelectric isolating circuit second 15, CAN controller second 16 and microprocessor second 17 successively.
Described microprocessor second 17 also connects LCD MODULE 22 respectively and three-color LED door dodges 4.
Described nurse station master controller comprises: circuit noise wave filter first 23, CAN driver first 24, photoelectric isolating circuit first 25, CAN controller first 26, microprocessor first 27, display device, acousto-optic hint device; Described circuit noise wave filter first 23 connects CAN driver first 24, photoelectric isolating circuit first 25, CAN controller first 26 and microprocessor first 27 successively; Described display device is connected microprocessor first 27 respectively with acousto-optic suggestion device.
Described display device comprises LED digital display device 28 and decoder driver circuit 29.
Described acousto-optic hint device comprises described buzzer 30, three-color LED light group 32 and drive circuit 31 thereof.
Described microprocessor first 27 also connects keyboard and interface circuit, RS-232 serial line interface.
As shown in Figure 5, Figure 7, the output signal of Hall element 19 (hall displacement transducer) gives the A/D converter in CPU2 after signal adjustment circuit 18, signal adjustment circuit 18 is made up of a slice four-operational amplifier 17, can be used to zero point and the range of adjustment infusion bottle weighing-up wave; Many pins of CAN controller second 16 are connected with CPU2, its serial input output pin RX0, TX0 are connected with pin RXD, TXD of CAN driver second 14 after the isolation of two high speed optoelectronic devices 14,15, and the output pin CANH of CAN driver second 14, CANL and CAN transfer bus 5--twisted-pair cable are connected in parallel; Character liquid crystal display selects the module of band serial line interface, and it only needs two I/O lines P2.3, P2.4 can realize the control of CPU2 to LCD MODULE 22; CPU2 is also connected with the three-color LED gate light 4 being arranged on doorway, ward after transistor Q1 ~ Q3 drives by its I/O mouth P1.5 ~ P1.7, and medicine bottle capacity setting switch 21 is directly connected with the I/O mouth of CPU2.
Circuit noise filter circuit second 13 is linked by two electric capacity C11, C12 being attempted by CAN and two transient supression diodes D4, D5 and forms; electric capacity C11, electric capacity C12 can High-frequency Interference in filtering CAN and the electromagnetic radiation that reduce environment; diode D4, diode D5 are then used for lightning surge electric current of releasing, and play certain protective effect to system equipment.In order to the electric current limited in bus is excessive, be connected in series two little valued resistor in the bus, CAN transceiving driver can be protected to exempt from the impact of overcurrent.
As shown in Fig. 6, Fig. 8, nurse station master controller comprises: circuit noise wave filter first 23, CAN driver first 24, photoelectric isolating circuit first 25, CAN controller first 26, microprocessor first 27 (CPU1), the LED digital display device 28 completing percentage digital display for ward and transfusion and decoder driver circuit 29 thereof, buzzer 30, three-color LED light group 32 and drive circuit 31, keyboard and interface circuit, RS-232 serial line interface, level-conversion circuit 34 and master controller panel etc.; Circuit noise filter circuit first 23 is made up of electric capacity C1, electric capacity C2 and two transient supression diode D1, diode D2, and its connection is identical with field unit.The input of CAN driver first 24 connects with CAN, and its output connects photoelectric isolating circuit first 25, and the signal after isolation is sent to CAN controller first 26; CAN controller first 26, keyboard and interface circuit, RS-232 serial line interface, level-conversion circuit 34 is connected with CPU1 respectively; Ring buzzing 30 to be controlled by transistor Q1 by CPU1; The input signal of the drive circuit 31 of decoder driver circuit 29 and three-color LED light group is all from the I/O pin of CPU1.
As shown in Figure 9,6 LED charactrons in LED digital display device 28 are controlled by the I/O mouth P2.5 ~ P2.7 of CPU1, Coding and driving then by six seal in-and go out shift register 74HC595 and come, these shift registers are that cascade connects, namely the highest order of first overflows the data input pin SER of termination second shift register,, cascade like this is gone down, till 6 all connect well.Under the control of CPU1, appear at the binary data string on data input pin SER, under the effect of shift pulse SRCLK, just can one one ground precession forward, when whole 6 LED data totally 48 be displaced to assigned address after, send output latch enabling nulse RCLK to each shift register again, now these binary data bit just appear in outfan transistor Q7-Q0, refresh display thus.
As shown in Figure 10, the driving of three-color LED light group 32 also by multi-disc seal in-and go out shift register 74HC595 and come, connected mode and the LED Nixie tube drive circuit of these shift registers are just the same.For sick bed totally 40 wards in three, ward between every, have 120 sick beds, therefore need 120 three-color LED lights altogether, each three-color LED light is controlled by three lines, shows green, yellow, red respectively, therefore needs 120 × 3=360 bar control line.And every a slice seal in-and go out shift register and only have 8 output leads, so need 45 shift registers altogether.For improving the driving force of control signal, in circuit, add a slice line driver for isolating 74HC245.Three holding wires from CPU1 are connected to the input of line driver for isolating IC25 (photoelectric isolating circuit first 25), and wherein DAT meets A0, and SRCLK meets A1 and A2, and RCLK meets A3 and A4.The SER signal exported from line driver for isolating is only sent to first and seals in-and go out the data input pin of shift register IC26 (CAN controller first 26), then deliver to the corresponding pin of all shift registers from line driver for isolating SRCLK signal out, RCLK signal is also connected with all shift register corresponding pins.It is also realize under the control of CPU1 that the state display of three-color LED light group 32 refreshes, and its display flush mechanism is same as above.
As shown in figure 11, the panel of nurse station master controller can be etched by aluminium sheet and form, it is provided with: (wherein first group is made up of 4 charactrons two groups of LED charactrons, display ward number+sick bed number, second group is made up of 2 charactrons, shows the completed percent of this sick bed infusion), each ward transfusion state three-color LED display lamp 32, keyboard 33, buzzer 30.The content of LED charactron window display is: when the medicinal liquid in a certain infusion bottle has completed more than 95% of amount of infusion, and display is switched to the corresponding sick bed number in this ward by system at once, points out nurse on duty to go to process; If when generation many places infusion bottle completes more than 95%, then rank by the sequencing that the moment occurs and take turns marquis's display.After the most forward infusion bottle completes process, the ward of just display time moment generation and corresponding bed label; If when all transfusions all do not reach more than 95%, window shows certain ward and to infuse normally percent.When arbitrary transfusion complete reach more than 95% time, the transfusion state three-color LED display lamp in corresponding ward just can be become red by system at once, and allowing it constantly glimmer, buzzer sends the sound simultaneously, and medical personnel are known at a glance, and which ward has occurred needing situation to be processed.When infusing normal, the bright corresponding transfusion state tri-colour LED of system point, in green; When transfusion complete reach more than 85% time, tri-colour LED yellowing, the transfusion reminding medical personnel to note this patient is close to completing.
Keyboard 33 is for inputting some instructions or data to system.Function key F1 is used for switching the transfusion percent that digital window shows different sick bed; F2 is then defined as Automatic Cycle and shows each sick bed infusion and complete percent; F3 is defined as buzzer noise reduction, when arbitrary infusion bottle infused reach more than 95% time, buzzer will send the sound.For reducing the impact on Hospitalization environment to greatest extent, resting period ring mode taked by buzzer, until have medical personnel press F3 make buzzer stop pipe till; F4 is defined as amendment two alarms and completes percentage thresholds: one is the early warning value that three-color LED display lamp is turned yellow, and default value is 85%, and another is the alarming value making three-color LED display lamp become red, and default value is 95%.
The panel of Figure 12 on-the-spot weight signal process transmitting element can be formed by PVC film silk-screen, it is provided with LCD MODULE 22, can show 2 line characters or numeral: the first row display ward number+sick bed number, the second row display has completed the percent of transfusion total amount.
The sheath twisted-pair cable 5 that master controller 1 place of Figure 13 nurse station starts to lay band screen layer is to ward between every, in turnoff, each ward, junction box 6 is installed, draw branch cable thus and receive and often open on the on-the-spot weight signal process transmitting element 3 (abbreviation extension set) of sick bed, extension set is fixed on wall.Between every, doorway, ward fills a Tricolor LED transfusion state display lamp 4, by all extension set co-controllings in same ward.
In Fig. 7 to 10: IC1 select STC12C5A16S2, IC2 to select SJA1000, IC3 to select TJA1050, IC4, IC5 to select 6N137, IC6 to select MAX232, IC7 to select MAX1232, IC8 to select 74HC21, IC9 to select 74HC00, IC11 to select STC12C5A16S2, IC12 to select SJA1000, IC13 to select TJA1050, IC14, IC15 to select 6N137, IC16 to select MAX1232, IC17 select LM324, Hall element selects AN51E; LCD MODULE selects JBC0802AOS-02Y, and it is a kind of Character Mode LCD with serial line interface.
As mentioned above, just this utility model can be realized preferably.
Embodiment of the present utility model is not restricted to the described embodiments; other are any do not deviate from spirit of the present utility model and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (7)
1. a hospital ward transfusion automatic warning device, comprise on-the-spot weight signal process transmitting element, nurse station master controller, it is characterized in that, also comprise one for gathering medicine bottle weight information and passing to the medicine bottle weighing device of on-the-spot weight signal process transmitting element, described medicine bottle weighing device comprises main shaft (8), main shaft support cover (11), hollow locking nut (12);
An end of described main shaft (8) is provided with one for hanging the hook (7) of medicine bottle, and another end is provided with the blind hole (10) for placing magnet steel, and middle part is arranged with a spring (8-1);
Described main shaft support cover (11) one end is main shaft orientation hole (11-1), and the other end is the spring container cavity (11-2) of spring (8-1);
The sheathed middle part with main shaft (8) of described main shaft support cover (11), hook (7) end of main shaft (8) is through spring (8-1) and to stretch out main shaft orientation hole (11-1) outside; Another end of main shaft (8) stretches out the outside of spring container cavity (11-2);
One end and main shaft orientation hole (11-1) of spring (8-1) offset, the other end with offseted by the jump ring (9) be buckled on main shaft (8) jump-ring slot (8-2); Spring (8-1), jump ring (9) and main shaft (8) are limited in main shaft support cover (11) by the hollow locking nut (12) being arranged on spring container cavity (11-2) this end;
Magnet steel is fixed in blind hole (10), and Hall element (19) is fixed on directly over magnet steel, leaves gap between magnet steel and Hall element (19);
Medicine bottle hangs on hook (7), along with transfusion is carried out, medicinal liquid in medicine bottle reduces gradually, spring (8-1) stroke changes, main shaft (8) is made to produce axial displacement relative to main shaft support cover (11), change the distance between magnet steel and Hall element (19), the output voltage signal of Hall element (19) is changed.
2. hospital ward transfusion automatic warning device according to claim 1, it is characterized in that, described on-the-spot weight signal process and transmitting element comprise: for gathering the Hall element (19) of medicine bottle weight, signal adjustment circuit (18), microprocessor second (17), circuit noise filter circuit second (13), CAN driver second (14), photoelectric isolating circuit second (15) and CAN controller second (16); Described Hall element (19) connects microprocessor second (17) by signal adjustment circuit (18); Described circuit noise filter circuit second (13) connects CAN driver second (14), photoelectric isolating circuit second (15), CAN controller second (16) and microprocessor second (17) successively.
3. hospital ward transfusion automatic warning device according to claim 2, it is characterized in that, described microprocessor second (17) also connects LCD MODULE (22) respectively and three-color LED door dodges (4).
4. hospital ward transfusion automatic warning device according to claim 1, it is characterized in that, described nurse station master controller comprises: circuit noise wave filter first (23), CAN driver first (24), photoelectric isolating circuit first (25), CAN controller first (26), microprocessor first (27), display device, acousto-optic hint device; Described circuit noise wave filter first (23) connects CAN driver first (24), photoelectric isolating circuit first (25), CAN controller first (26) and microprocessor first (27) successively; Described display device and acousto-optic suggestion device are connected microprocessor first (27) respectively.
5. hospital ward transfusion automatic warning device according to claim 4, it is characterized in that, described display device comprises LED digital display device (28) and decoder driver circuit (29).
6. hospital ward transfusion automatic warning device according to claim 4, it is characterized in that, described acousto-optic hint device comprises buzzer (30), three-color LED light group (32) and drive circuit (31) thereof.
7. hospital ward transfusion automatic warning device according to claim 4, it is characterized in that, described microprocessor first (27) also connects keyboard and interface circuit, RS-232 serial line interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722209.9U CN205198597U (en) | 2015-09-17 | 2015-09-17 | Hospital ward automatic warning device that infuses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722209.9U CN205198597U (en) | 2015-09-17 | 2015-09-17 | Hospital ward automatic warning device that infuses |
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| Publication Number | Publication Date |
|---|---|
| CN205198597U true CN205198597U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520722209.9U Withdrawn - After Issue CN205198597U (en) | 2015-09-17 | 2015-09-17 | Hospital ward automatic warning device that infuses |
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| Country | Link |
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| CN (1) | CN205198597U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105288785A (en) * | 2015-09-17 | 2016-02-03 | 华南理工大学 | Hospital ward infusion automatic warning device |
| CN106039472A (en) * | 2016-06-16 | 2016-10-26 | 沈娟芬 | Infusion bag alarm device |
| CN106334238A (en) * | 2016-09-28 | 2017-01-18 | 安徽工程大学机电学院 | Automatic transfusion amount control apparatus |
-
2015
- 2015-09-17 CN CN201520722209.9U patent/CN205198597U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105288785A (en) * | 2015-09-17 | 2016-02-03 | 华南理工大学 | Hospital ward infusion automatic warning device |
| CN105288785B (en) * | 2015-09-17 | 2018-09-14 | 华南理工大学 | A kind of hospital ward infusion automatic warning device |
| CN106039472A (en) * | 2016-06-16 | 2016-10-26 | 沈娟芬 | Infusion bag alarm device |
| CN106334238A (en) * | 2016-09-28 | 2017-01-18 | 安徽工程大学机电学院 | Automatic transfusion amount control apparatus |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20180914 |
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| AV01 | Patent right actively abandoned |