CN201921173U - Automatic water mixing device of heat exchange water box of artificial heart-lung machine - Google Patents
Automatic water mixing device of heat exchange water box of artificial heart-lung machine Download PDFInfo
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- CN201921173U CN201921173U CN2011200130539U CN201120013053U CN201921173U CN 201921173 U CN201921173 U CN 201921173U CN 2011200130539 U CN2011200130539 U CN 2011200130539U CN 201120013053 U CN201120013053 U CN 201120013053U CN 201921173 U CN201921173 U CN 201921173U
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- mixing device
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Abstract
The utility model discloses an automatic water mixing device of a heat exchange water box of an artificial heart-lung machine. A heating pipe is arranged in a hot water tank, and a cooling pump is connected between the hot water tank and a cold water tank. The cold water tank is connected with a cold water circulation pump, and the hot water tank is connected with a main circulation pump. Temperature probes are respectively arranged in the hot water tank and the cold water tank, and a temperature probe is arranged in the main circulation pump and is connected with a microprocessor. The microprocessor is connected with the cold water circulation pump, the cooling pump and the main circulation pump respectively. The automatic water mixing device has the characteristics that the cooling speed is accelerated by almost two times, the power of a compressor does not need to be increased, and an original refrigerating system does not need to be changed. The automatic water mixing device avoids the heating inertia of previous equipment, namely water temperature can still rise slightly even if the electrical heating has stopped after the target temperature is achieved. Thus, the output water temperature precision is accurately controlled at a range of the error about 0.2 DEG C of the set temperature and exceeds the level of the error about 0.3 DEG C of the temperature precision of like products.
Description
Technical field
This utility model belongs to the parts of armarium heart-lung machine, particularly a kind of automatic water-mixing device of heart-lung machine's heat exchange water tank.
Background technology
The temperature control equipment of prior art heart-lung machine-heat exchange water tank is one provides temperature control and the output in the heat exchange water tank that adds warm water, cooling water and former water for the heat exchanger in the extracorporeally circulating blood heat-exchange system, attemperation is used when implementing the extracorporeal circulation perfusion for medical institutions.
Its structure is such: it comprises that one adds hot water storgae, refrigeration tank, heater and condenser coil and lays respectively in two tanks, connect with pipeline between two tanks, and machinery valve manual switchover recirculated water institute circulation tank is arranged, control circuit comes acquired signal and feeds back to control circuit by the temperature-sensing probe of each tank inside.When user need add intensification water, recirculated water just is switched to circulate in hot water storgae by manually-operated gate and stops heating when electric heater work reaches predetermined temperature simultaneously, when user needs water at low temperature, recirculated water just is switched again in the refrigeration tank by manually-operated gate and circulates, this moment, electric heater quit work, and the compressor starts working water eliminating cold for resuscitation beginning descends.Because heating and refrigeration work are mutually independently, so no matter be heating or refrigerating operation at first is to use the manual switch machinery valve in clinical use, and the initial coolant-temperature gage of heating and cooling all is from current room temperature, so cooling rate is slow, if need reducing temperature twice in the operation, that is to say and carried out once cooling, the operation that heats up then, need immediately cooling again to make cardiac arrest in case operation is unsuccessful, cold water so in the used cold rinse bank has gone up to the temperature close with room temperature, even if compressor starts immediately because of being subjected to the restriction of equipment volume and noise, so compressor horsepower is limited, the water of about 26 ℃ of 11L be reduced to 4 ℃ also needs 20 fens clock times.Overlong time can be affected best rescue time adversely.
The utility model content
Technical problem to be solved in the utility model is: the automatic water-mixing device that a kind of heart-lung machine's heat exchange water tank is provided.Reach the operation of saving the manual switchover water valve, realize the conversion of lifting/lowering temperature automatically, accelerate rate of temperature fall.
The technical solution of the utility model is:
A kind of automatic water-mixing device of heart-lung machine's heat exchange water tank is characterized in that: heating tube is arranged in the hot water storgae, be connected with the cooling pump between hot water storgae and the cold rinse bank, self is connected with cold water circulation pump cold rinse bank, and self is connected with main circulation pump hot water storgae; Temperature probe is respectively arranged in hot water storgae and cold rinse bank, temperature probe is arranged in main circulation pump, temperature probe is connected on the microprocessor, and microprocessor connects cold water circulation pump, cooling pump and main circulation pump respectively.
This utility model effect is:
The utlity model has following advantage: the medical worker can accelerate nearly one times of cooling rate, and need not to strengthen compressor horsepower and change former refrigeration system.Even and if the inertia of having avoided equipment heating in the past just reaches the uniform temperature that stopped electrical heating but water temperature still can rise behind the target temperature, the scope that more accurately the output water temperature precision is controlled at and sets design temperature error ± 0.2 ℃ has surpassed the level of like product temperature accuracy ± 0.3 ℃.
Description of drawings
Fig. 1 is the tank figure of heart-lung machine's heat exchange water tank automatic water-mixing device.
Fig. 2 is the schematic diagram of heart-lung machine-heat exchange water tank automatic water-mixing device.
1 cold rinse bank, 2 hot water storgaes, 3 cold water circulation pumps, 4 cooling pumps, 5 main circulation pumps, 6 heating tubes, 7 pipe valves, 8 temperature probes,
The specific embodiment
The automatic water-mixing device of heart-lung machine's heat exchange water tank of the present utility model, technical solution is to increase a cold water circulation pump, a multifunctional pump, utilize central processing unit and three tunnel temperature sensors, the control water pump is turned down warm water in the constant relatively cold water aqua storage tank and is mixed with normal-temperature water, reaches default temperature at faster speed.
Below in conjunction with the drawings and specific embodiments this utility model is described further:
A kind of automatic water-mixing device of heart-lung machine's heat exchange water tank has heating tube in the hot water storgae, be connected with the cooling pump between hot water storgae and the cold rinse bank, and self is connected with cold water circulation pump cold rinse bank, and self is connected with main circulation pump hot water storgae; Temperature probe is respectively arranged in hot water storgae and cold rinse bank, temperature probe is arranged in main circulation pump, temperature probe is connected on the microprocessor, and microprocessor connects cold water circulation pump, cooling pump and main circulation pump respectively.
The operation principle of heat exchange water tank temperature-fall period:
The composition of heat exchange water tank: by cold rinse bank 1, hot water storgae 2, cold water circulation pump 3, cooling pump 4, main circulation pump 5, heating tube 6, pipe valve 7, temperature probe 8, form.
The cold rinse bank work process:
Machine makes the water cycle in the cold rinse bank by self check for preventing the icing adding of condenser one cold water circulation pump after start.By microprocessor compressor autostop, compressor is worked automatically when the water temperature of cold rinse bank is higher than 6 ℃ when detecting the cold rinse bank temperature and be lower than 2 ℃ by temperature probe " 1 ".Be higher than 6 ℃ of startups according to being lower than 2 ℃ of shutdown always.
The heat exchange water tank is started working, and is temperature required by keyboard to set up, and microprocessor judges whether still cooling of heating by the automatic detected temperatures of temperature probe " 3 ".When design temperature was lower than Current Temperatures, output one signal of telecommunication control cooling pump was mended the cold water that presets to hot water storgae after microprocessor detected the output water temperature degree by temperature probe " 3 " in cold rinse bank, the coolant-temperature gage of output is descended reach cooling effect.Microprocessor judges whether heating by the automatic detected temperatures of temperature probe " 3 " when design temperature is higher than Current Temperatures.By control silicon controlled conducting or end the work of controlling heating tube, microprocessor heats by a heating mode when measuring displays temperature and close on 0.5 ℃ of design temperature, water temperature is rendered as slowly closes on design temperature.Can not produce heating phenomena.Make circulating temperature and design temperature be no more than positive and negative 0.3 ℃.
The arrow representative is the control procedure of water cycle process and microprocessor.
Claims (1)
1. the automatic water-mixing device of heart-lung machine's heat exchange water tank, it is characterized in that: heating tube is arranged in the hot water storgae, be connected with the cooling pump between hot water storgae and the cold rinse bank, self is connected with cold water circulation pump cold rinse bank, and self is connected with main circulation pump hot water storgae; Temperature probe is respectively arranged in hot water storgae and cold rinse bank, temperature probe is arranged in main circulation pump, temperature probe is connected on the microprocessor, and microprocessor connects cold water circulation pump, cooling pump and main circulation pump respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200130539U CN201921173U (en) | 2011-01-17 | 2011-01-17 | Automatic water mixing device of heat exchange water box of artificial heart-lung machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200130539U CN201921173U (en) | 2011-01-17 | 2011-01-17 | Automatic water mixing device of heat exchange water box of artificial heart-lung machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201921173U true CN201921173U (en) | 2011-08-10 |
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ID=44425048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200130539U Expired - Fee Related CN201921173U (en) | 2011-01-17 | 2011-01-17 | Automatic water mixing device of heat exchange water box of artificial heart-lung machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201921173U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033651A (en) * | 2014-12-09 | 2016-10-19 | 北京航空航天大学 | Device for simulating human body skin temperature regulation and perspiration |
| CN117100575A (en) * | 2023-10-20 | 2023-11-24 | 厦门维优智能科技有限公司 | Air wave therapeutic apparatus capable of rapidly switching cold and hot compress temperatures |
-
2011
- 2011-01-17 CN CN2011200130539U patent/CN201921173U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033651A (en) * | 2014-12-09 | 2016-10-19 | 北京航空航天大学 | Device for simulating human body skin temperature regulation and perspiration |
| CN117100575A (en) * | 2023-10-20 | 2023-11-24 | 厦门维优智能科技有限公司 | Air wave therapeutic apparatus capable of rapidly switching cold and hot compress temperatures |
| CN117100575B (en) * | 2023-10-20 | 2023-12-29 | 厦门维优智能科技有限公司 | Air wave therapeutic apparatus capable of rapidly switching cold and hot compress temperatures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |