CN2382362Y - Activating whole blood coagulation time detector - Google Patents
Activating whole blood coagulation time detector Download PDFInfo
- Publication number
- CN2382362Y CN2382362Y CN 99214785 CN99214785U CN2382362Y CN 2382362 Y CN2382362 Y CN 2382362Y CN 99214785 CN99214785 CN 99214785 CN 99214785 U CN99214785 U CN 99214785U CN 2382362 Y CN2382362 Y CN 2382362Y
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- China
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- test tube
- circuit
- coagulation time
- time detector
- activated coagulation
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Abstract
The utility model relates to an activating whole blood coagulation time detector, which comprises test tubes which are inserted into a test tube well provided with a heating device; the test tube well is arranged in a shell of the detector; a plurality of test tube placing holes are arranged on the shell; blood coagulation signal generators which are mutually matched to move are arranged in the test tube and the test tube well. The signal generators can be magnetic-coupling signal generators; output signals of the signal generators are connected with a control circuit comprising a power supply circuit, a drive circuit and a timing circuit; the output of the control circuit is also connected with an alarm circuit, a heating device and a time display device. The utility model has the advantage of simple operation, and is capable of automatically and accurately measuring blood coagulation time without depending on manpower.
Description
This utility model relates to a kind of medical checkout equipment, especially a kind of can the semi-automatic instrument that detects activated coagulation time (ACT).
In department of cardiac surgery, in the extracorporeal circulation of operation blood, need reasonably use the metering of anticoagulant heparin and protamine antagonism, guarantee the safe handling of extracorporeal circulation of blood, just must check patient's self clotting time exactly.At present, check that the method for patient's clotting time is to use hand test tube method, do not have other special-purpose instruments.Hand test tube method at first with the blood sample injecting tube of taking, is put upside down test tube again, simultaneously kieselguhr is dissolved in the whole blood, and test tube is inserted test tube rack, puts into 37 ℃ thermostatted water, picks up counting, and the inclination test tube was observed once in per 30 seconds.Because the ACT value behind basic value and the antagonism heparin is little, after observing 1 minute, test tube should not observed from the about 5-10 of hands second again, and is as the criterion with fixed attention entirely with blood, records time value.This method, not only complicated operating process needs staff's heavy work, be unable to do without artificial experience and judge and obtain detection time, and often measure inaccurate.
The purpose of this utility model is to provide a kind of activated coagulation time detector, and it is simple to operate, can not rely on manually, measures the blood clotting time automatically, exactly.
The purpose of this utility model is achieved in that a kind of activated coagulation time detector, and it comprises test tube, and test tube inserts and is equipped with in the test tube well of firing equipment, and the test tube well is arranged in the housing of instrument; Be provided with the blood clotting signal generation apparatus that cooperatively interacts and move in vitro with in the test tube well, the output signal of signal generation apparatus connects the control circuit that comprises power circuit, drive circuit, timing circuit, the also output circuit taking alarm of control circuit, heater, time display apparatus.
The described signal generation apparatus of blood clotting in vitro partly is a magnetic core, the top of magnetic core be provided with the skeleton of barrier effect magnetic core to top offset, skeleton fixes in vitro on the wall; The test tube well can be aluminum pipe, and aluminum pipe is provided with overcoat outward, is provided with magnetic deflection coil between aluminum pipe and the overcoat, twines being provided with heater on the aluminum pipe outer wall, is provided with temperature sensing device in the aluminum pipe, and the driving device and the housing that fix test tube are affixed, and driving device is arranged in the housing.
Described heater is provided with thermosensitive probe.
Described test tube driving device comprises that front end connects the test tube cutting ferrule, and cutting ferrule is inserted in the big belt pulley axis hole, and the rear end extension of big belt pulley wore bearing, and rear end extension tail end is provided with fixedly jump ring, the outer wall of rear end extension and bearing inner wall tight fit; Bearing is inserted in the overcoat support, and with the outer casing inner wall tight fit, the affixed housing of overcoat support, big belt pulley is driven by drive motors by drive system.
Described test tube cutting ferrule afterbody inwall is provided with the projection ring portion, and outer wall is provided with spring arch clasp.
Described skeleton bottom is a buttress shaft, and top is the blade of multi-disc rotation, and its external diameter is consistent with the test tube internal diameter.
Described control circuit comprises that one pre-sets delay circuit.
Described control circuit comprises regularly holding circuit.
Described power circuit can be more than one the tunnel, connects drive circuit and operating circuit respectively.
Described housing is provided with a plurality of test tube putting holes.
According to the technique scheme analysis as can be known, simple to operate, the standard of this utility model has been eliminated artificial difference, and measurement data is accurate, has substituted artificial maintenance constant temperature, stirring, observation and the loaded down with trivial details work of calendar scheduling.
Below in conjunction with accompanying drawing and specific embodiments this utility model is described in further detail.
Fig. 1 is this utility model external structure sketch map;
Fig. 2 is this utility model test tube structural representation;
Fig. 3 is this utility model test tube snap ring structural representation;
Fig. 4 is this utility model test tube well construction sketch map;
Fig. 5 is this utility model circuit theory diagrams.
Referring to Fig. 1-5, this utility model is a kind of activated coagulation time detector, and it comprises test tube 2, and test tube 2 inserts and is equipped with in the test tube well 3 of firing equipment, and test tube well 3 is arranged in the housing 1 of instrument; In test tube 2 with in the test tube well 3, be provided with the blood clotting signal generation apparatus that cooperatively interacts and move, the output signal of signal generation apparatus connects and comprises power circuit, drive circuit, timing circuit control circuit, and control circuit is exported circuit taking alarm, heater, time display apparatus.
Shown in Fig. 2,3,4, the blood clotting signal generation apparatus partly is a magnetic core 21 in the test tube 2, the top of magnetic core 21 has been provided with the skeleton 22 of barrier effect magnetic core 21 to top offset, skeleton 22 bottoms of test tube 2 are a buttress shaft 23, top is the blade 24 of multi-disc rotation, its external diameter is consistent with the test tube internal diameter, so skeleton 22 fixes on test tube 2 inwalls.Test tube well 3 can be aluminum pipe 4, is provided with overcoat 5 outside the aluminum pipe 4, is provided with magnetic deflection coil 17 (also can be tongue tube) between aluminum pipe 4 and the overcoat 5, twines being provided with heater strip 6 on aluminum pipe 4 outer walls, and heater strip 6 is provided with thermosensitive probe 7, and whether the temperature that detects heater is overheated.Be provided with temperature sensing device 8 in the aluminum pipe 4, can respond to the temperature in the aluminum pipe 4, guarantee that test tube 2 is in the homothermic environment.Test tube 2 driving devices comprise that front end connects test tube cutting ferrule 9, cutting ferrule 9 is inserted in big belt pulley 10 axis holes, the rear end extension of big belt pulley 10 wore bearing 11, and rear end extension tail end is provided with fixedly jump ring 12, the outer wall of rear end extension and bearing 11 inwall tight fits; Bearing 11 is inserted in overcoat support 13, and with overcoat support 13 inwall tight fits, overcoat support 13 affixed housings 1.Big belt pulley 10 is driven by drive motors by drive system.Test tube cutting ferrule 9 afterbody inwalls are provided with projection ring portion 14, and outer wall is provided with spring arch clasp 15, can flexibly fix the test tube 2 that inserts, and make test tube 2 along with big belt pulley 10 rotates.
Having injected a certain amount of blood and having inserted in the aluminum pipe 4 with the blended test tube 2 of kieselguhr, before blood clotting, because aluminum pipe 4 isolated magnetic not, magnetic deflection coils 17 inductions that the magnetic cores 21 in the test tube 2 and aluminum pipe 4 are outer, therefore produce the signal of telecommunication, the JAG that output is given to control circuit gets.As starting switch K, driving device drives test tube 2 rotations, along with the prolongation of time, during blood coagulation, clot encases magnetic core 21 attached on test tube 2 walls and the skeleton 22, drive magnetic core 21 rotations simultaneously, after magnetic core 21 rotations departed from magnetic deflection coil 17, magnetic coupling disappeared, the contact of magnetic deflection coil JAG disconnects, with the entire circuit outage, the alarm device action, buzzer is reported to the police, the drive motors stall, test tube 2 is stuck in current location.
Referring to Fig. 5, this utility model control circuit comprises power circuit, drive circuit, timing and timing holding circuit, warning circuit, heater, time display apparatus, pre-sets circuit.In the present embodiment, the set delay circuit delay circuit that base chip IC 4 NE555 connecting resistance R4 and capacitor C 9 are formed when being that pre-sets, before detection, press starting switch, 2,4 feet of IC4 are in low level, 3 feet are high level, audion T1, T2 conducting, relay J 1 gets electric, the J1-2 closure, motor-drive circuit forms loop, motor-driven.Audion T4 conducting, during coagulo meter, warning, counter O reset, regularly holding circuit also enters duty.IC4 stops after delay time turns round according to predefined presetting.
1500 seconds time setting circuits that base chip IC 13 NE555 and resistance R 30, potentiometer W5, capacitor C 23 were formed when timing and timing holding circuit comprised; it provides the timing of whole blood clotting time and 1500 seconds maximum durations of setting to limit; when above 1500 seconds; when still not having the blood clotting signal; time base chip IC 13NE555 mouth line 3 with relay J 2 electric, contact J2-1 opens, and entire circuit is cut off the power supply; buzzer is reported to the police, thereby plays the regularly effect of protection.
When detection formally begins, test tube 2 is inserted in the test tube wells 3, press starting switch K, timing circuit picks up counting, and display device shows timing time.Because the electromagnetic signal input circuit JAG of signal generation apparatus that control circuit connects output, the sensitivity of the potentiometer W2 scalable magnetic deflection coil JAG of its connection, in the contact JK serial connection control loop of JAG, the detection display lamp is lighted, audion T1 conducting, thus electric motor loop connected, and motor rotates, drive big belt pulley by actuating device and rotate, test tube rotates thereupon; After blood clotting took place, magnetic induction disappeared, and contact JK disconnects, audion T1 ends, the motor stall, and test tube 2 stops operating, cut off sprocket pulse, timing stops, and the shown time is the blood clotting time, simultaneously, the capacitor C 15 that start has begun to charge is by resistance R 22 discharges, improved the base potential of audion T4, audion T4 conducting, alarm equipment alarm.
The heater control circuit is sent out chip IC 5 by critesistor t0 with the chip contact, and the output of IC5 meets audion T5, and when temperature was too high, 3 feet of IC5 were low level, and audion T5 ends, and heater strip RH outage stops heating., time display apparatus.The signal output jointing temp display IC12 of the temperature sensor 8 in the aluminum pipe 4 can learn the temperature in the current aluminum pipe 4.
Be the holding circuit operate as normal, prevent the impact of the starting current of motor to circuit, drive circuit and operating circuit can be to separate and are provided with, and wherein IC2 provides machine operation, and IC1, IC3 provide the running voltage of other devices.
In addition, for further facilitating practical operation, as shown in Figure 1, housing 1 of the present utility model is provided with a plurality of test tube putting holes 16, can insert and place many test tubes.
Claims (10)
1, a kind of activated coagulation time detector, it comprises test tube, it is characterized in that: described test tube inserts and is equipped with in the test tube well of firing equipment, and the test tube well is arranged in the housing of instrument; Be provided with the blood clotting signal generation apparatus that cooperatively interacts and move in vitro with in the test tube well, the output signal of signal generation apparatus connects the control circuit that comprises power circuit, drive circuit, timing circuit, the output of control circuit circuit also taking alarm, heater, time display apparatus.
2, activated coagulation time detector according to claim 1, it is characterized in that: the described signal generation apparatus of blood clotting in vitro partly is a magnetic core, the top of magnetic core be provided with the skeleton of barrier effect magnetic core to top offset, skeleton fixes in vitro on the wall; The test tube well can be aluminum pipe, and aluminum pipe is provided with overcoat outward, is provided with magnetic deflection coil between aluminum pipe and the overcoat, twines being provided with heater on the aluminum pipe outer wall, is provided with temperature sensing device in the aluminum pipe, and the driving device and the housing that fix test tube are affixed, and driving device is arranged in the housing.
3, activated coagulation time detector according to claim 1 and 2, it is characterized in that: described heater is provided with thermosensitive probe.
4, activated coagulation time detector according to claim 2, it is characterized in that: described test tube driving device comprises that front end connects the test tube cutting ferrule, cutting ferrule is inserted in the big belt pulley axis hole, the rear end extension of big belt pulley wore bearing, rear end extension tail end is provided with fixedly jump ring, the outer wall of rear end extension and bearing inner wall tight fit; Bearing is inserted in the overcoat support, and with the outer casing inner wall tight fit, the affixed housing of overcoat support, big belt pulley is driven by drive motors by drive system.
5, activated coagulation time detector according to claim 4 is characterized in that: described test tube sleeve pipe afterbody inwall is provided with the projection ring portion, and outer wall is provided with spring arch clasp.
6, activated coagulation time detector according to claim 2 is characterized in that: described skeleton bottom is a buttress shaft, and top is the blade of multi-disc rotation, and its external diameter is consistent with the test tube internal diameter.
7, activated coagulation time detector according to claim 1 is characterized in that: described control circuit comprises that one pre-sets delay circuit.
8, activated coagulation time detector according to claim 1 is characterized in that: described control circuit comprises regularly holding circuit.
9, activated coagulation time detector according to claim 1, it is characterized in that: described power circuit can be more than one the tunnel, connects drive circuit and operating circuit respectively.
10, activated coagulation time detector according to claim 1 is characterized in that: described housing is provided with a plurality of test tube putting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99214785 CN2382362Y (en) | 1999-07-02 | 1999-07-02 | Activating whole blood coagulation time detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99214785 CN2382362Y (en) | 1999-07-02 | 1999-07-02 | Activating whole blood coagulation time detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382362Y true CN2382362Y (en) | 2000-06-14 |
Family
ID=34006898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99214785 Expired - Lifetime CN2382362Y (en) | 1999-07-02 | 1999-07-02 | Activating whole blood coagulation time detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2382362Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844144A (en) * | 2017-11-17 | 2018-03-27 | 宋瑞昕 | Intelligent integrated chemistry experiment teaching aid |
| CN109856292A (en) * | 2019-03-27 | 2019-06-07 | 长治市农产品质量安全检验监测中心 | Detecting Pesticide pre-treatment special equipment based on QuEChERS method |
-
1999
- 1999-07-02 CN CN 99214785 patent/CN2382362Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844144A (en) * | 2017-11-17 | 2018-03-27 | 宋瑞昕 | Intelligent integrated chemistry experiment teaching aid |
| CN109856292A (en) * | 2019-03-27 | 2019-06-07 | 长治市农产品质量安全检验监测中心 | Detecting Pesticide pre-treatment special equipment based on QuEChERS method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |