WO2016187937A1 - 一种封闭式组织脱水系统及其控制方法 - Google Patents

一种封闭式组织脱水系统及其控制方法 Download PDF

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Publication number
WO2016187937A1
WO2016187937A1 PCT/CN2015/084230 CN2015084230W WO2016187937A1 WO 2016187937 A1 WO2016187937 A1 WO 2016187937A1 CN 2015084230 W CN2015084230 W CN 2015084230W WO 2016187937 A1 WO2016187937 A1 WO 2016187937A1
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WO
WIPO (PCT)
Prior art keywords
port
way valve
valve
reagent
inlet
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PCT/CN2015/084230
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English (en)
French (fr)
Inventor
招睿雄
唐玉豪
韦建飞
Original Assignee
达科为(深圳)医疗设备有限公司
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Application filed by 达科为(深圳)医疗设备有限公司 filed Critical 达科为(深圳)医疗设备有限公司
Publication of WO2016187937A1 publication Critical patent/WO2016187937A1/zh

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q

Definitions

  • the present invention relates to a closed tissue dehydration system and a control method therefor.
  • the tissue dewatering machine realizes the treatment of fixing, dehydrating, transparent and immersing wax for the specimens to be inspected, and is a key pre-processing step for preparing paraffin block slicing.
  • the tissue dehydrator uses a programmable electronic circuit to control the working state of the fluid element, allowing the reagent
  • tissue processing cylinder (formalin, alcohol, xylene, paraffin, etc.) It is possible to perform pre-treatment of pathological analysis such as fixation, dehydration, transparency, and waxing in the tissue processing cylinder in a certain order, and can be controlled according to preset settings.
  • the existing tissue dehydrators are divided into two types, one is open type, and several reagent cylinders with different reagents are arranged in a circumferential or linear arrangement, and then the tissue specimens are sequentially immersed in the reagent cylinder by a robot arm for processing.
  • the other type is to sequentially or inject the liquid in the reagent bottle into the tissue processing cylinder containing the tissue specimen by establishing a positive or negative pressure in the tissue processing cylinder.
  • the first type of dewatering machine is gradually eliminated due to its small capacity and low safety.
  • the second type of dewatering machine has a large capacity, and the system of the whole machine is sealed and has high safety. Its design scheme is widely recognized. However, since the second type of dehydrator needs to meet the following design:
  • the reagents flowing through the system include formalin, alcohol, xylene, and other chemical reagents;
  • the liquid flowing through the system further includes paraffin wax
  • tissue block to be processed by the system is immersed in the reagent, and the reagent needs to be discharged from the original channel back into the reagent bottle after the treatment is completed;
  • the dehydrator In view of the above characteristics of the dehydrator, the dehydrator generally has the following reliability and safety issues:
  • the dehydrator system cannot be completely sealed, and the gas may exhibit non-faulty leakage under certain conditions.
  • the present invention provides a closed tissue dehydration system and a control method to make the dehydration system work more reliable.
  • a closed tissue dehydration system comprising a tissue processing cylinder, a paraffin container, a reagent container and an air pump, the tissue processing cylinder comprising a treatment liquid inlet and outlet and a gas inlet and outlet respectively located at a lower end and an upper end of the tissue processing cylinder, a treatment liquid inlet and outlet is connected to the paraffin container and the reagent container through a valve, the closed tissue dehydration system further comprising a first three-way valve, a second three-way valve, a third three-way valve and a fourth three-way valve, The first port of the third three-way valve and the first port of the fourth three-way valve are both connected to the gas inlet and outlet, and the second port of the fourth three-way valve is respectively connected to the air inlet and the air outlet, The second port of the three-way valve is connected to the air outlet, and the first port and the common port of the second three-way valve are respectively connected to the inlet of the air inlet and the air pump, and the second port
  • the paraffin container includes a paraffin inlet and a paraffin container gas outlet
  • the reagent container includes a reagent inlet and a reagent container gas outlet
  • the paraffin inlet and outlet and the reagent inlet and outlet pass through the valve and the treatment liquid inlet and outlet Connected, the paraffin vessel gas outlet and the reagent vessel gas outlet are connected to the inlet of the condenser.
  • the air inlet includes a first air inlet and a second air inlet, and the fourth three-way valve The second port is connected to the first air inlet through the first one-way valve and the first air filter, and the first port of the second three-way valve is connected to the second air inlet through the second air filter.
  • the tissue processing cylinder further comprising a tissue processing cylinder
  • the valve assembly includes a valve assembly first common port, a valve assembly second common port, and a valve assembly reagent port, the process fluid inlet and outlet through the first liquid valve and the a first common port of the valve assembly, the common port of the fifth three-way valve being connected to the second common port of the combined valve member through the liquid pump and the second liquid valve, the fifth three-way valve A port and a second port are respectively coupled to the processing cylinder port and an inlet of the condenser, and the valve assembly reagent port is coupled to the reagent container through the reagent valve.
  • a liquid pump, a fifth three-way valve, a sixth three-way valve, a seventh three-way valve, a valve assembly, and a reagent valve are further included, the valve assembly including a valve assembly common port And a valve assembly reagent port, wherein the process fluid inlet and outlet are respectively connected to the valve assembly common port and the first port of the fifth three-way valve, and the gas inlet and outlet are respectively connected to the first port of the sixth three-way valve Connected to the first port of the seventh three-way valve, the common port and the second port of the sixth three-way valve are respectively connected to the inlet of the liquid pump and the common port of the fifth three-way valve, the seventh three a common port and a second port of the valve are respectively connected to an outlet of the liquid pump and an inlet of the condenser, and a second port of the fifth three-way valve is connected to an inlet of the condenser, the valve combination A reagent port is coupled to the reagent container through the reagent valve
  • a negative pressure relief valve is disposed between the second port of the fourth three-way valve and the air inlet, and a second port of the fourth three-way valve is disposed between the second port and the air outlet. There is a positive pressure relief valve.
  • a pressure sensor is further included, the pressure sensor is configured to detect a gas pressure of the gas inlet and outlet, and when the gas pressure exceeds a set air pressure threshold, the common port of the fourth three-way valve is alternated. The first port and the second port of the fourth three-way valve are electrically connected.
  • the present invention also provides a method for controlling the closed tissue dehydration system, characterized in that it comprises a negative pressure establishing step and a positive pressure establishing step,
  • the negative pressure establishing step includes the following steps:
  • the positive pressure establishing step includes the following steps:
  • the method further includes the following steps:
  • the common port of the fourth three-way valve is alternately electrically connected to the first port and the second port.
  • the present invention also provides a method for controlling the closed tissue dehydration system, wherein the control method includes the following steps in a case where the air pump cannot make the tissue processing cylinder pumping reagent; :
  • the common port of the fourth three-way valve is communicated with the first port, the common port of the third three-way valve is in communication with the second port, and the common port of the fifth three-way valve is in communication with the first port, a reagent valve and a second liquid valve, closing the first liquid valve;
  • the present invention also provides a method of controlling the closed tissue dehydration system, characterized in that it further comprises a reagent circulation step:
  • the reagent in the tissue processing cylinder is sequentially passed through the first liquid valve, the valve assembly first common port, the valve assembly second common port, the second liquid valve, the liquid pump, A common port and a first port of the five-way valve are discharged from the processing cylinder port into the tissue processing cylinder.
  • the present invention further provides a control method for the closed tissue dehydration system, wherein a negative pressure relief valve is disposed between the second port of the fourth three-way valve and the air inlet, a positive pressure relief valve is disposed between the second port of the fourth three-way valve and the air outlet;
  • the control method includes the following steps: [0046] communicating a common port of the third three-way valve with the first port, a common port of the sixth three-way valve is in communication with the first port, and a common port of the fourth three-way valve is in communication with the second port, fifth The common port of the three-way valve is in communication with the second port, the common port of the seventh three-way valve is in communication with the second port, and the common port of the fourth three-way valve is in communication with the second port;
  • the present invention also provides a control method for the closed tissue dehydration system, wherein a negative pressure relief valve is disposed between the second port of the fourth three-way valve and the air inlet, a positive pressure relief valve is disposed between the second port of the fourth three-way valve and the air outlet;
  • control method includes the following steps:
  • the present invention also provides a control method for the closed tissue dehydration system, wherein a negative pressure relief valve is disposed between the second port of the fourth three-way valve and the air inlet, a positive pressure relief valve is disposed between the second port of the fourth three-way valve and the air outlet;
  • control method further includes a reagent recycling step:
  • the system structure is simple and reliable.
  • the pressure sensor and the pressure relief valve are used to control the stability of the pumping positive and negative pressure, and the monitoring function of the pressure sensor ensures that the system does not leak over pressure; [0059] Designing a backup power system (using a liquid pumping reagent or a related component of a reagent), in the main power system (using the pump pumping, discharging the reagent (paraffin) related components), the fault can be maintained by the standby power system. Work to improve system reliability;
  • the paraffin and reagent channel separation design reduces the probability of clogging and clogging, and the temperature of the reagent channel allows the reagent channel to block the enthalpy, and the channel is restored by heating;
  • Embodiment 1 is a closed tissue dehydration system according to Embodiment 1 of the present invention.
  • Embodiment 2 is a closed tissue dehydration system according to Embodiment 2 of the present invention.
  • Embodiment 3 is a closed tissue dehydration system according to Embodiment 3 of the present invention.
  • Embodiment 4 is a closed tissue dehydration system according to Embodiment 4 of the present invention.
  • Embodiment 5 is a closed tissue dehydration system according to Embodiment 5 of the present invention.
  • an enclosed tissue dehydration system of an embodiment includes a tissue processing cylinder, a paraffin container, a reagent container, an air pump P, a first three-way valve VI, a second three-way valve V2, and a third Three-way valve V3, fourth three-way valve V 4, first check valve CV1, second check valve CV2, pressure sensor PS, first air filter c ndl, second air filter cnd2, negative pressure NPS, positive pressure PPS, condenser, (activated carbon) filter, valve assembly, rotary valve, reagent valve (V5, V6, V7, V8
  • the tissue processing cylinder includes a processing liquid inlet and outlet and a gas inlet and outlet respectively located at the lower end and the upper end of the tissue processing cylinder, and the tissue processing cylinder is provided with a liquid level sensor LS, a sealing ring, a heating sheet, a temperature sensor, and a filtering device FL.
  • the shape of the tissue processing cylinder may be square, cylindrical, etc.; the liquid level sensor is assembled at different heights of the cylinder wall to detect liquid levels of different heights; the liquid level sensor may be resistive, capacitive, float or photoelectric
  • the sealing ring is assembled on the tissue processing cylinder head, and the lid is closed Treating the cavity of the cylinder with a sealing structure; the sealing ring may be made of fluororubber, PTFE or metal; the heating piece is adhered to the outer wall of the tissue processing cylinder to heat the tissue processing cylinder; the temperature sensor may be attached to The outer wall of the cylinder, the inner wall, the outer wall of the heating sheet, the inner wall or the inner surface of the tissue processing cylinder is assembled by screws; the temperature sensor may be a resistive, capacitive or infrared temperature detecting; the filtering device FL may be disassembled, and the filter may be Made into a quick change type.
  • the paraffin container is provided with a paraffin box, a heating sheet and a temperature sensor, and the heating sheet is adhered to the outer wall of the paraffin tank to heat the wax box; the temperature sensor can be attached to the outer wall, the inner wall and the heating sheet of the paraffin container.
  • the outer wall, the inner wall, and the like; the paraffin bath is placed in a paraffin tank, and is designed with a handle and a cylinder head, which can conveniently extract and prevent paraffin splash;
  • the material of the paraffin bath can be a material with good thermal conductivity such as stainless steel or aluminum alloy.
  • the treatment liquid inlet and outlet are connected to a common port of the rotary valve, and the respective branch ports of the rotary valve are respectively connected to the paraffin inlet and outlet of each of the wax containers, and the paraffin gas outlet of the paraffin container is connected to the inlet of the condenser.
  • the treatment liquid inlet and outlet are also connected to the common port VCP of the valve assembly, and the respective branch ports (valve assembly reagent ports) of the valve assembly are respectively connected to the reagent inlets and outlets of each reagent container through corresponding reagent valves, for example, a branch port VOP
  • the fifth reagent valve V5 is connected to one of the fixing reagents (for example, 30% formalin, etc.), and the reagent inlet and outlet of the reagent container is connected to the inlet of the condenser.
  • the dehydrating reagent may be ethanol, such as 80%, 85%, 90%, and 100% ethanol, the clear reagent may be 100% diphenyl, and the cleaning reagent may be water, 100% ethanol or 100% diphenyl.
  • the first port NC (normally closed port) of the third three-way valve V3 and the first port of the fourth three-way valve V4 are NC
  • the filter is connected to the gas outlet, the second port NO (normal port) of the third three-way valve V3 is connected to the inlet of the condenser, and the first port NC of the second three-way valve V2 is The closed port is connected to the second air inlet through the second air filter cnd2, the first port NC of the first three-way valve VI, the second port NO of the second three-way valve V2 (normal port), and the third three-way
  • the common port C of the valve V3 and the common port C of the fourth three-way valve V4 are in communication with each other (for example, a four-way joint may be used to communicate with each other), and the common port C of the second three-way valve V2 is connected to the inlet A of the air pump P,
  • the common port C of the first three-way valve VI is connected to the outlet of the air pump Connected, the second port NO (normal port) is connected to the inlet of the condenser.
  • the pressure sensor PS is used to detect the air pressure at the gas inlet and outlet of the tissue processing cylinder, and the pressure sensor PS can be set at point B.
  • the negative pressure detecting means NPS is for detecting the air pressure of the inlet P of the air pump P. If the negative pressure of the inlet A of the air pump P exceeds the negative pressure threshold, the system controls the air pump P to stop rotating.
  • the positive pressure detecting device PPS is used to detect the air pressure at the outlet of the air pump P. If the positive pressure of the inlet of the air pump P exceeds the positive pressure threshold, the system controls the air pump P to stop rotating.
  • the flow of the pumping reagent of the first embodiment is as follows: the cylinder head of the tissue processing cylinder is closed and locked, and the reagent valve V5 is energized and snored (the remaining reagent valves are not The snoring, the rotary valve is also not connected to the paraffin container, and the third three-way valve V3 and the fourth three-way valve V4 are energized to respectively turn the respective common port C and the normally closed port NC (the first three-way valve VI and the second) The three-way valve V2 is not energized, the port NO and the common port C are connected, and the air pump P is started.
  • the gas in the tissue processing cylinder is pumped from the gas inlet and outlet through the third three-way valve V3 and the fourth.
  • the NC port of the three-way valve V4 enters the NO port of the second three-way valve V 2 , it flows out from the C port of the second three-way valve V2 and flows through the inside of the air pump P, and then from the NO port of the first three-way valve VI
  • the effluent is condensed by the condenser and filtered by the filter and discharged to the outside atmosphere.
  • a negative pressure is gradually formed inside the tissue processing cylinder, and the pressure sensor monitors the pressure in the tissue processing cylinder.
  • the fourth three-way valve V4 When the required pressure is reached, the fourth three-way valve V4 is repeatedly turned on and off to make the fourth three-way valve 4 of. The end turns (alternately) conducts with the NO port or the NC port.
  • the C port and the NO port are turned on, the outside air flows into the air path system through the first air filter cndl and the check valve CV1, and the neutral pump is redundant. Negative pressure can stabilize the pressure within a certain range, and the liquid is sucked into the tissue processing cylinder under a stable pressure to soak the tissue placed inside.
  • the reagent flow of the first embodiment (taking the fixed reagent corresponding to the reagent valve V5 as an example) is as follows: the cylinder head of the tissue processing cylinder is closed and locked, and the reagent valve V5 is energized and snored (the rest of the reagent valves are not hit) ⁇ , the rotary valve is also not connected to the paraffin container), the first three-way valve VI, the second three-way valve V2, the third three-way valve V3, and the fourth three-way valve V4 are energized to make the respective common terminal C and the normally closed end
  • the NC port is turned on, and the air pump P is started.
  • the external air enters the NC port of the second three-way valve V2 from the second air filter cnd2, flows through the inside of the air pump P, and then passes through the first port of the first three-way valve VI.
  • the NC port of the three-way valve V3 and the fourth three-way valve V4 enters the inside of the tissue processing cylinder.
  • a positive pressure is gradually formed inside the tissue processing cylinder, and the pressure sensor monitors the pressure in the tissue processing cylinder when the required pressure is reached.
  • the fourth three-way valve V4 is repeatedly turned on and off to make the fourth three
  • the C-end of the valve V4 is turned on and the NO port or the NC port is turned on.
  • the excess positive pressure flows out through the check valve CV2, is condensed by the condenser, filtered by the filter, and discharged to the outside atmosphere.
  • the excess positive pressure established by the air pump P can be stabilized, and the pressure can be stabilized within a certain range.
  • the liquid is discharged from the tissue processing cylinder to the reagent container corresponding to the reagent valve V5 under a stable pressure, and flows into the reagent container.
  • the gas passes through the reagent vessel gas outlet, flows through the common conduit into the condenser, is condensed by the condenser, and filtered by the filter and discharged to the outside atmosphere.
  • the flow of the paraffin wax of the first embodiment is as follows: The cylinder head of the tissue processing cylinder is closed and locked, and the rotary valve passage is rotated to the position of paraffin 1 (reagent valve V5) Until V16 is closed), the rotary valve inlet corresponding to paraffin 1 is in communication with the rotary valve outlet. Then, in the same manner as the pumping reagent of the first embodiment, the negative pressure in the tissue processing cylinder is brought to a stable pressure, and the paraffin is sucked into the tissue processing cylinder under a stable pressure to soak the tissue placed therein.
  • the flow of paraffin wax (the paraffin container corresponding to paraffin 1 as an example) of the first embodiment is as follows: The cylinder head of the tissue processing cylinder is closed and locked, and the rotary valve passage is rotated to the position of paraffin 1 (reagent valve V5) Until V16 is closed), the rotary valve inlet corresponding to paraffin 1 is in communication with the rotary valve outlet. Then, in the same manner as the flow of the reagent of the first embodiment, the positive pressure in the tissue processing cylinder is brought to a stable pressure, and the paraffin is discharged from the tissue processing cylinder to the wax cylinder corresponding to the paraffin 1 under a stable pressure. The gas flowing into the wax bath passes through the gas outlet of the paraffin container, flows into the condenser through the common pipe, is condensed by the condenser, and filtered by the filter, and then discharged to the outside atmosphere.
  • the positive pressure establishing process of the first embodiment is as follows: The cylinder head of the tissue processing cylinder is closed and locked, and then, in the same manner as the positive pressure establishing process of the discharging reagent of the first embodiment, the inside of the tissue processing cylinder is gradually formed.
  • the pressure sensor PS monitors the pressure in the tissue processing cylinder, and when the required pressure is reached, the air pump P stops working, the first three-way valve VI, the second three-way valve V2, the third three-way valve V3, The four-way valve V4 is de-energized, and the respective NC port and C port are broken, and the pressure in the tissue processing cylinder is closed by the third three-way valve V3 and the fourth three-way valve V4 to maintain a positive pressure state.
  • the negative pressure establishing process of the first embodiment is as follows: The tissue processing cylinder head is closed and locked, and then, in the same manner as the negative pressure of the pumping reagent of the first embodiment, the inside of the tissue processing cylinder is gradually formed. Negative pressure, the pressure sensor PS monitors the pressure in the tissue processing cylinder. When the required pressure is reached, the air pump P stops working, and the third three-way valve V3 and the fourth three-way valve V4 are powered off, and the NC port and the C port of the valve are stopped. Broken, organized to handle the pressure in the cylinder It is closed by the third three-way valve V3 and the fourth three-way valve V4 to maintain a negative pressure state.
  • the pressure relief process of the first embodiment is as follows: When the tissue processing cylinder is closed with a positive pressure, the fourth three-way valve V 4 is energized, the C port and the NC port are turned on, and the third three-way valve V3 is closed. The port is electrically connected to the NO port, and the gas in the cylinder enters the condenser through the NC port of the fourth three-way valve V4 and the NO port of the third three-way valve V3, and is condensed by the condenser and filtered by the filter, and then discharged to the outside atmosphere.
  • the positive pressure in the cylinder is drained and balanced with the atmospheric pressure; when the negative pressure is closed in the tissue processing cylinder, the fourth three-way valve V4 is energized to make the C port and the NC port conduct, and the third three-way valve V3 is closed.
  • the C port is electrically connected to the NO port, and the outside air flows through the filter and the condenser through the NO port of the third three-way valve V3 and the NC port of the fourth three-way valve V4 into the tissue processing cylinder, and the negative pressure in the cylinder is After neutralization, balance with atmospheric pressure.
  • the positive pressure monitoring alarm process of the first embodiment is as follows: In the case that the gas system clogging causes the gas discharged from the operation of the air pump P to be discharged, the outlet of the air pump P rapidly forms a very high positive pressure, which is set in the air pump. The positive pressure at the outlet is detected by the PPS after the abnormal pressure is detected and a signal is fed back to the system. The system will stop the operation of the air pump P and start the pressure relief process.
  • the negative pressure monitoring alarm flow of the first embodiment is as follows: In the case where the fluid system is clogged and the air pump P is operated and the inlet cannot be inhaled, the inlet A of the air pump P rapidly forms a very high negative pressure, setting The negative pressure at the inlet of the air pump P detects that the abnormal pressure is fed back to the system and the system will stop the operation of the air pump P and start the pressure relief process.
  • the closed tissue dehydration system of the present embodiment differs from the system of Embodiment 1 in that: a rotary valve is used to select a communication tissue processing cylinder and each reagent container or paraffin container, and the rotary valve has a common port. And a plurality of branch ports, each branch port is connected to a reagent container or a paraffin container, and when the rotary valve is rotated to strobe a branch port, the corresponding container is in communication with the tissue processing cylinder.
  • the flow of the pumping reagent of the second embodiment differs from the flow of the pumping reagent of the first embodiment in that: Embodiment 1 strops the reagent container and the tissue processing cylinder through the valve assembly, and controls the reagent container by using the corresponding reagent valve. Induction with the valve assembly, and in this embodiment 2, the tissue processing cylinder and the corresponding reagent container are strobed by a rotary valve, and then the liquid is sucked to the tissue treatment under a stable pressure in the same manner as in the first embodiment. The tissue placed inside is soaked in the cylinder.
  • the reagent flow process, the waxing process, the paraffin wax process, the positive pressure establishing process, and the positive pressure establishing process of the second embodiment are basically the same as those in Embodiment 1, and are not described herein again.
  • the closed tissue dehydration system of the third embodiment further adds a negative pressure relief valve DV1 and a positive pressure relief valve DV2 in the closed tissue dehydration system of the first embodiment, and a negative pressure relief
  • the pressure valve DV1 is disposed between the check valve CV1 and the NO end of the fourth three-way valve
  • the positive pressure relief valve DV2 is disposed between the check valve CV2 and the NO end of the fourth three-way valve.
  • the third three-way valve V3 is energized to turn on the common port C and the normally closed port NC (the first three-way valve VI, the second three-way valve V2, and the fourth three-way valve V4 are not energized, and the respective common ports are NO and the common port C are connected), and the air pump P is started, and the gas in the tissue processing cylinder is pumped by the pump from the gas inlet and outlet through the NC port of the third three-way valve V3 to the NO port of the second three-way valve V2.
  • the outside air flows into the pneumatic system through the first air filter cndl, the check valve CV1 and the negative pressure relief valve DV1, neutralizing the excess negative pressure established by the air pump, and the pressure is stabilized in the negative pressure relief valve DV1 within a certain range. Set value.
  • the first three-way valve VI, the second three-way valve V2, and the third three-way valve V3 are energized to turn on the respective common terminal C port and the normally closed end NC port, and the fourth three-way valve V4 is kept closed, so that The C port and the NO port are connected to start the air pump P, and the gas of the Xibun boundary enters the NC port of the second three-way valve V2 by the second air filter cnd2, flows through the inside of the air pump P, and then flows from the first three-way valve VI.
  • the NC port enters the inside of the tissue processing cylinder through the NC port of the third three-way valve V3.
  • a positive pressure is gradually formed inside the tissue processing cylinder, and the pressure formed in the tissue processing cylinder exceeds the positive pressure relief valve DV2 preset.
  • the positive pressure relief valve DV2 and the check valve CV2 are automatically smashed, and the excess positive pressure flows out through the positive pressure relief valve DV2 and the check valve CV2, is condensed by the condensing vessel, and filtered by the filter to be discharged to the outside atmosphere.
  • the excess positive pressure established by the air pump P is released, and the pressure is stabilized in the set value of the positive pressure relief valve DV2 within a certain range.
  • the closed tissue dehydration system of the fourth embodiment is further increased in the closed tissue dehydration system of the third embodiment: a fifth three-way valve V17, a first liquid valve V18, and a second liquid valve.
  • V19, liquid pump P1 the valve assembly has two common ports that communicate with each other: a valve assembly first common port, a valve assembly second common port, and a tissue processing cylinder also having a process cylinder port at an upper end of the tissue processing cylinder.
  • the treatment liquid inlet and outlet are connected to the valve assembly first common port through the first liquid valve V18, and the common port C of the fifth three-way valve V17 passes through the liquid pump P1 and the second liquid valve V19
  • the combined valve member is connected to the second common port, and the first port NC and the second port NO of the fifth three-way valve V17 are respectively connected to the processing cylinder port and the inlet of the condenser.
  • the reagent cartridge cannot be pumped by the air pump P to establish a negative pressure
  • the reagent can be pumped as follows (take the reagent container corresponding to the reagent valve V5 as an example):
  • the tissue processing cylinder head is closed and locked, and the fourth three-way valve V4 and the fifth three-way valve V17 are energized to turn on the respective C port and the NC port, and the reagent valve V5 and the second liquid valve V19 are energized. ⁇ , close the first liquid valve V18, the reagent valves V6 to V16, start the liquid pump Pl, the reagent in the reagent container corresponding to the reagent valve V5 is pumped out from the reagent container under the suction of the liquid pump PI, and the combined valve member
  • the second common port flows into the second liquid valve V19, and the liquid flows from the second liquid valve V19 to the NC end of the liquid pump P1 and the fifth three-way valve V17, and is discharged into the tissue processing cylinder from the processing cylinder port at the top of the tissue processing cylinder.
  • the liquid pump P1 continues to work, and the liquid is continuously drawn into the tissue processing cylinder from the reagent container.
  • the excess gas in the cylinder enters the third through the gas inlet and outlet of the tissue processing cylinder through the NC port of the fourth three-way valve V4.
  • the NO port of the three-way valve V3 flows into the condensing vessel, is condensed by the condensing vessel, filtered by the filter, and discharged to the outside atmosphere.
  • This embodiment can also realize the reagent circulation, the flow is as follows: When the tissue processing cylinder is filled with liquid for tissue immersion, the tissue processing cylinder head is closed and locked, the rotary valve and the reagent valves V5 to V16 are closed, and the fifth The three-way valve V17 is energized to make the C port and the NC port conduct, the first liquid valve V18 and the second liquid valve V19 are energized and turned on, the liquid pump P1 is activated, and the liquid enters the valve assembly from the bottom of the tissue processing cylinder through the first liquid valve V18.
  • the common passage flows into the second liquid valve V19, and the liquid flows from the second liquid valve V19 to the NC end of the liquid pump PI and the fifth three-way valve V17, and is discharged into the tissue processing cylinder from the processing cylinder port at the top of the tissue processing cylinder.
  • the liquid pump P1 continues to work, and the liquid in the tissue processing cylinder will continue to flow out from the bottom of the tissue processing cylinder, and the top will flow in, and the reagents will be stirred and circulated, so that the concentration distribution of the reagent in the process of processing the tissue is uniform, and the effect of the tissue treatment is improved.
  • the closed tissue dehydration system of the embodiment 5 is further increased in the closed tissue dehydration system of the third embodiment: the liquid pump P1, the fifth three-way valve V17, and the sixth three-way valve V18.
  • a seventh three-way valve V19 wherein the processing liquid inlet and outlet are respectively connected to the valve assembly common port and the first port NC of the fifth three-way valve V17, and the gas inlet and outlet respectively and the sixth three-way valve V18
  • the first port NC is connected to the first port NC of the seventh three-way valve V19, and the common port C and the second port NO of the sixth three-way valve V18 are respectively connected to the inlet and the fifth three-way of the liquid pump P1.
  • a common port C of the valve V17 is connected, and a common port C and a second port NO of the seventh three-way valve V19 are respectively connected to an outlet of the liquid pump P1 and an inlet of the condenser, the fifth three-way valve
  • the second port NO of V17 is connected to the inlet of the condenser.
  • the reagent can be pumped as follows (take the reagent corresponding to the reagent valve V5 as an example): the tissue processing cylinder head is closed and locked, and the reagent valve V5 is energized and snoring.
  • the reagent valves V6 to V16 remain closed, and the third three-way valve V3 and the sixth three-way valve V18 are energized to respectively turn on the respective C port and NC port (the fourth three-way valve V4, the fifth three-way valve V17, and The seventh three-way valve V19 is kept closed, and the respective C port and NO port are respectively connected.)
  • the liquid pump P1 is started, and the gas in the tissue processing cylinder passes through the NC of the sixth three-way valve V18 under the suction of the liquid pump P1. After flowing through the mouth of the liquid pump P1, it flows out from the NO port of the seventh three-way valve V 19 , is condensed by the condenser and filtered by the filter, and is discharged to the outside atmosphere.
  • a negative pressure is gradually formed inside the tissue processing cylinder.
  • the pressure formed in the tissue processing cylinder exceeds the preset pressure of the negative pressure relief valve D VI, the negative pressure relief valve DV1 and the check valve CV1 are automatically smashed, and the outside air passes through the first air filter cndl, Check valve CV1 and negative pressure
  • the pressure valve DV1 flows into the airway system to neutralize the excess negative pressure established by the air pump.
  • the pressure is stabilized within a certain range at the set value of the negative pressure relief valve DV1, and the liquid is sucked into the tissue processing cylinder under a stable pressure.
  • the tissue placed inside is soaked.
  • the reagent flow of the embodiment 5 can be as follows: the tissue processing cylinder head is closed and locked, the reagent valve V5 is energized to snoring, the third three-way valve V3, the seventh three-way valve V19 is energized to make the C port and The NC port is turned on, the fifth three-way valve V 17 and the sixth three-way valve V18 are closed to connect the respective C ports with the NO port, the liquid pump P1 is activated, and the external gas passes through the filter and the condenser through the fifth three-way valve.
  • the positive pressure relief valve DV2 and the check valve CV2 are automatically Snoring, the excess positive pressure flows out through the positive pressure relief valve DV2 and the check valve CV2, is condensed by the condenser and filtered by the filter, and discharged to the outside atmosphere, and the excess positive pressure established by the air pump is released, and the pressure is within a certain range. Stabilized at the set value of the positive pressure relief valve DV2, the liquid is discharged from the tissue processing cylinder to the reagent container corresponding to the reagent valve V5 under a stable pressure, and the gas flowing into the reagent container flows into the condenser through the common pipeline. After being condensed by the condenser and filtered by the filter, it is discharged to the outside atmosphere.
  • the flow of the reagent circulation of the fifth embodiment is as follows: in the case where the tissue processing cylinder is filled with liquid for tissue immersion, the tissue processing cylinder head is closed and locked, and the fifth three-way valve V17 and the seventh three-way valve V19 energizes to turn on the respective C and NC ports, and the third three-way valve V3 and the fourth three-way valve V4 are closed, so that the respective C and NO ports are connected, the reagent valves V5 to V16, the rotary valve are closed, and the liquid pump P1 starts, the liquid passes through the NC and C ports of the fifth three-way valve V17 from the bottom of the tissue processing cylinder, passes through the NO and C ports of the sixth three-way valve V18, flows through the liquid pump P1, and passes through the seventh three-way valve V19.
  • the C port and the NC port are discharged into the tissue processing cylinder from the top of the tissue processing cylinder, and the liquid pump P1 continues to work.
  • the liquid in the tissue processing cylinder continues to flow out from the bottom of the tissue processing cylinder, and the top flows in, and the reagent is stirred and stirred.
  • the concentration distribution of the reagent in the process of treating the tissue is uniform, and the effect of the tissue treatment is improved.

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Abstract

一种封闭式组织脱水系统及其控制方法,该系统中,处理液出入口通过阀与石蜡容器和试剂容器连接,封闭式组织脱水系统还包括第一三通阀(V1)、第二三通阀(V2)、第三三通阀(V3)和第四三通阀(V4),第三三通阀(V3)的第一端口(NC)和第四三通阀(V4)的第一端口(NC)均与气体出入口连接,第四三通阀(V4)的第二端口(NO)分别与入气口和出气口连接,第三三通阀(V3)的第二端口(NO)与出气口连接,第二三通阀(V2)的第一端口(NC)和公共端口分别与入气口和气泵的入口连接,第一三通阀(V1)的第二端口(NO)和公共端口分别与出气口和气泵的出口连接,第一三通阀(V1)的第一端口(NC)、第二三通阀(V2)的第二端口(NO)、第三三通阀(V3)的公共端口和第四三通阀(V4)的公共端口相互连通。本系统性能可靠,可以提高脱水效果。

Description

一种封闭式组织脱水系统及其控制方法
[0001] 【技术领域】
[0002] 本发明涉及一种封闭式组织脱水系统及其控制方法。
[0003] 【背景技术】
[0004] 组织脱水机实现对送检组织标本需进行固定、 脱水、 透明、 浸蜡的处理, 是制 作石蜡块切片的关键前处理步骤。
[0005] 组织脱水机是通过运用可编程的电子电路来控制流体元件的工作状态, 让试剂
(福尔马林、 酒精、 二甲苯以及石蜡等) 能够按照一定的顺序对组织处理缸内 的组织进行固定、 脱水、 透明以及浸蜡等病理分析前处理, 并且能够按照预先 的设定, 控制处理过程的吋间、 温度以及压力等。 现有的组织脱水机分为两类 , 一类是敞幵式的, 将若干个装有不同试剂的试剂缸按圆周排列或直线排列, 然后用机械臂将组织标本依次浸入试剂缸中进行处理; 另一类是通过在组织处 理缸内建立正压或者负压, 将试剂瓶内的液体依次抽入或排出盛有组织标本的 组织处理缸内进行处理。 第一类脱水机由于容量小、 安全性低而逐渐被淘汰; 第二类脱水机容量大, 且整机的系统为密封设计, 安全度高, 其设计方案受到 广泛的认同。 但由于第二类脱水机需要满足以下设计:
[0006] (1) 系统需要长期工作在较高的正压和负压的工况;
[0007] (2) 系统需要长期进行加热和保温;
[0008] (3) 系统所流经的试剂包括福尔马林、 酒精、 二甲苯以及其他化学试剂;
[0009] (4) 系统所流经的液体还包括石蜡;
[0010] (5) 系统所要处理的组织块会浸泡在试剂内, 处理完成后试剂还需要从原来 通道排放回到试剂瓶中;
[0011] 鉴于脱水机的以上特点, 脱水机一般会具有以下一些可靠性和安全性问题:
[0012] (1) 长期的正负压工作使系统容易发生泄漏;
[0013] (2) 长期的加热和保温, 系统的器部件容易发生老化和故障;
[0014] (3) 长期流经腐蚀性的试剂, 系统器部件容易发生老化腐蚀而失效, 同吋也 容易导致试剂泄露对环境和人员造成危害;
[0015] (4) 石蜡在低温吋会发生凝固, 容易堵塞所流经的通道;
[0016] (5) 所处理的组织会在试剂中沉积脂肪和组织碎片, 累积后容易堵塞流体元 器件和管道;
[0017] (6) 流体系统设计系统所浸泡的液体无法充分流动和组织充分接触, 因此很 难在处理过程中维持试剂的浓度, 使组织能够充分脱水;
[0018] (7) 脱水机系统无法做到完全密封, 气体在某些情况下出现非故障性泄露。
[0019] 【发明内容】
[0020] 为了克服现有技术的不足, 本发明提供了一种封闭式组织脱水系统及控制方法 , 以使脱水系统工作更加可靠。
[0021] 一种封闭式组织脱水系统, 包括组织处理缸、 石蜡容器、 试剂容器和气泵, 所 述组织处理缸包括分别位于所述组织处理缸下端和上端的处理液出入口和气体 出入口, 所述处理液出入口通过阀与所述石蜡容器和试剂容器连接, 所述封闭 式组织脱水系统还包括第一三通阀、 第二三通阀、 第三三通阀和第四三通阀, 所述第三三通阀的第一端口和第四三通阀的第一端口均与所述气体出入口连接 , 所述第四三通阀的第二端口分别与入气口和出气口连接, 所述第三三通阀的 第二端口与出气口连接, 所述第二三通阀的第一端口和公共端口分别与入气口 和气泵的入口连接, 所述第一三通阀的第二端口和公共端口分别与出气口和气 泵的出口连接, 所述第一三通阀的第一端口、 第二三通阀的第二端口、 第三三 通阀的公共端口和第四三通阀的公共端口相互连通。
[0022] 在一个实施例中, 还包括冷凝器和第一过滤器, 所述第一三通阀的第二端口、 第三三通阀的第二端口和第四三通阀的第二端口连接所述冷凝器的入口, 所述 冷凝器的出口通过所述第一过滤器与出气口连接。
[0023] 在一个实施例中, 所述石蜡容器包括石蜡出入口和石蜡容器气体出口, 所述试 剂容器包括试剂出入口和试剂容器气体出口, 所述石蜡出入口和试剂出入口通 过阀与所述处理液出入口连接, 所述石蜡容器气体出口和试剂容器气体出口与 所述冷凝器的入口连接。
[0024] 在一个实施例中, 所述入气口包括第一入气口和第二入气口, 所述第四三通阀 的第二端口通过第一单向阀和第一空气过滤器与第一入气口连接, 所述第二三 通阀的第一端口通过第二空气过滤器与第二入气口连接。
[0025] 在一个实施例中, 还包括液泵、 第五三通阀、 第一液阀、 第二液阀、 阀组合件 和试剂阀, 所述组织处理缸还包括位于所述组织处理缸的上端的处理缸端口, 所述阀组合件包括阀组合件第一公共端口、 阀组合件第二公共端口和阀组合件 试剂端口, 所述处理液出入口通过所述第一液阀与所述阀组合件第一公共端口 连接, 所述第五三通阀的公共端口通过所述液泵和第二液阀与所述组合阀件第 二公共端口连接, 所述第五三通阀的第一端口和第二端口分别与所述处理缸端 口和所述冷凝器的入口连接, 所述阀组合件试剂端口通过所述试剂阀与所述试 剂容器连接。
[0026] 在一个实施例中, 还包括液泵、 第五三通阀、 第六三通阀、 第七三通阀、 阀组 合件和试剂阀, 所述阀组合件包括阀组合件公共端口和阀组合件试剂端口, 所 述处理液出入口分别与所述阀组合件公共端口和第五三通阀的第一端口连接, 所述气体出入口分别与所述第六三通阀的第一端口和第七三通阀的第一端口连 接, 所述第六三通阀的公共端口和第二端口分别与所述液泵的入口和第五三通 阀的公共端口连接, 所述第七三通阀的公共端口和第二端口分别与所述液泵的 出口和所述冷凝器的入口连接, 所述第五三通阀的第二端口与所述冷凝器的入 口连接, 所述阀组合件试剂端口通过所述试剂阀与所述试剂容器连接。
[0027] 在一个实施例中, 所述第四三通阀的第二端口与入气口之间设置有负压泄压阀 , 所述第四三通阀的第二端口与出气口之间设置有正压泄压阀。
[0028] 在一个实施例中, 还包括压力传感器, 所述压力传感器用于检测所述气体出入 口的气压, 当所述气压超过设定气压阈值吋, 所述第四三通阀的公共端口交替 与所述第四三通阀的第一端口和第二端口导通。
[0029] 本发明还提供了一种所述的封闭式组织脱水系统的控制方法, 其特征是, 包括 负压建立步骤和正压建立步骤,
[0030] 所述负压建立步骤包括如下步骤:
[0031] 使第四三通阀的第一端口与公共端口连通、 第三三通阀的第一端口与公共端口 连通、 第二三通阀的第二端口与公共端口连通、 第一三通阀的第二端口与公共 端口连通;
[0032] 启动所述气泵;
[0033] 所述正压建立步骤包括如下步骤:
[0034] 使第四三通阀的第一端口与公共端口连通、 第三三通阀的第一端口与公共端口 连通、 第二三通阀的第一端口与公共端口连通、 第一三通阀的第一端口与公共 端口连通;
[0035] 启动所述气泵。
[0036] 在一个实施例中, 还包括如下步骤:
[0037] 当所述气体出入口的气压达到设定压力后, 使所述第四三通阀的公共端口交替 与第一端口和第二端口导通。
[0038] 本发明还提供了一种所述的封闭式组织脱水系统的控制方法, 其特征是, 在所 述气泵无法使所述组织处理缸抽试剂的情况下, 所述控制方法包括如下步骤:
[0039] 使第四三通阀的公共端口与第一端口连通、 第三三通阀的公共端口与第二端口 连通、 第五三通阀的公共端口与第一端口连通, 打幵所述试剂阀和第二液阀, 关闭所述第一液阀;
[0040] 启动所述液泵。
[0041] 本发明还提供了所述的封闭式组织脱水系统的控制方法, 其特征是, 还包括试 剂循环步骤:
[0042] 使第五三通阀的公共端口和第一端口导通, 幵启所述第一液阀和第二液阀, 关 闭所述试剂阀;
[0043] 启动所述液泵, 使所述组织处理缸内的试剂依次经过第一液阀、 阀组合件第一 公共端口、 阀组合件第二公共端口、 第二液阀、 液泵、 第五三通阀的公共端口 和第一端口, 从所述处理缸端口排入所述组织处理缸内。
[0044] 本发明还提供了所述的封闭式组织脱水系统的控制方法, 其特征是, 所述第四 三通阀的第二端口与入气口之间设置有负压泄压阀, 所述第四三通阀的第二端 口与出气口之间设置有正压泄压阀;
[0045] 在所述气泵无法使所述组织处理缸抽试剂的情况下, 所述控制方法包括如下步 骤: [0046] 使所述第三三通阀的公共端口与第一端口连通、 第六三通阀的公共端口与第一 端口连通、 第四三通阀的公共端口与第二端口连通、 第五三通阀的公共端口与 第二端口连通、 第七三通阀的公共端口与第二端口连通、 第四三通阀的公共端 口与第二端口连通;
[0047] 幵启所述试剂阀和液泵。
[0048] 本发明还提供了所述的封闭式组织脱水系统的控制方法, 其特征是, 所述第四 三通阀的第二端口与入气口之间设置有负压泄压阀, 所述第四三通阀的第二端 口与出气口之间设置有正压泄压阀;
[0049] 在所述气泵无法使所述组织处理缸排试剂的情况下, 所述控制方法包括如下步 骤:
[0050] 使所述第三三通阀的公共端口与第一端口连通、 第七三通阀的公共端口与第一 端口连通、 第五三通阀的公共端口与第二端口连通、 第六三通阀的公共端口与 第二端口连通、 第四三通阀的公共端口与第二端口连通;
[0051] 幵启所述试剂阀和液泵。
[0052] 本发明还提供了所述的封闭式组织脱水系统的控制方法, 其特征是, 所述第四 三通阀的第二端口与入气口之间设置有负压泄压阀, 所述第四三通阀的第二端 口与出气口之间设置有正压泄压阀;
[0053] 所述控制方法还包括试剂循环步骤:
[0054] 使第五三通阀的公共端口与第一端口连通、 第六三通阀的公共端口与第二端口 连通、 第七三通阀的公共端口与第一端口连通、 第三三通阀的公共端口与第二 端口连通、 第四三通阀的公共端口与第二端口连通, 关闭所述试剂阀;
[0055] 启动所述液泵, 使所述组织处理缸内的试剂依次经过第五三通阀、 第六三通阀 、 液泵、 第七三通阀, 从所述气体出入口排入所述组织处理缸内。
[0056] 本发明的有益效果是:
[0057] 通过采用气泵、 第一三通阀至第四三通阀四个三通阀, 使得抽、 排试剂 (石蜡
) 的本系统结构较为简单, 且性能可靠。
[0058] 通过压力传感器和泄压阀, 控制抽液吋正负压的稳定, 同吋通过压力传感器的 监控作用, 确保系统不会过压泄露; [0059] 设计备用动力系统 (利用液泵抽试剂或排试剂的相关部件) , 在主动力系统 ( 利用气泵抽、 排试剂 (石蜡) 的相关部件) 故障吋, 可以通过备用动力系统维 持机器正常工作, 提高系统可靠性;
[0060] 通过石蜡和试剂通道分离设计, 降低堵塞的几率和在堵塞, 通过试剂通道的保 温系统, 让试剂通道可以在堵塞吋, 通过加热使通道恢复畅通;
[0061] 通过设计可拆卸的过滤装置, 降低组织碎片堵塞的风险;
[0062] 设计备用动力系统实现的循环试剂功能, 提高试剂的均匀性和脱水的充分混合
, 提高脱水效果。
[0063] 【附图说明】
[0064] 图 1是本发明实施例 1的封闭式组织脱水系统;
[0065] 图 2是本发明实施例 2的封闭式组织脱水系统;
[0066] 图 3是本发明实施例 3的封闭式组织脱水系统;
[0067] 图 4是本发明实施例 4的封闭式组织脱水系统;
[0068] 图 5是本发明实施例 5的封闭式组织脱水系统。
[0069] 【具体实施方式】
[0070] 以下对发明的较佳实施例作进一步详细说明。
[0071] 实施例 1
[0072] 如图 1所示, 一种实施例的封闭式组织脱水系统, 包括组织处理缸、 石蜡容器 、 试剂容器、 气泵 P、 第一三通阀 VI、 第二三通阀 V2、 第三三通阀 V3、 第四三 通阀 V4、 第一单向阀 CV1、 第二单向阀 CV2、 压力传感器 PS、 第一空气过滤器 c ndl、 第二空气过滤器 cnd2、 负压力幵关 NPS、 正压力幵关 PPS、 冷凝器、 (活性 炭) 过滤器、 阀组合件、 旋转阀、 试剂阀 (V5、 V6、 V7、 V8
V9、 V10、 VI I、 V12、 V13、 V14、 V15、 V16) 。
组织处理缸包括分别位于所述组织处理缸下端和上端的处理液出入口和气体出 入口, 组织处理缸配有液位传感器 LS、 密封圈、 加热片、 温度传感器以及过滤 装置 FL。 组织处理缸形状可以为正方形、 圆柱形等; 所述液位传感器装配在缸 壁不同高度, 可以检测不同高度的液位; 所述液位传感器可以是电阻式、 电容 式、 浮子式或者光电式; 所述密封圈装配在组织处理缸缸盖上, 合上盖子后可 以密封组织处理缸的腔体; 所述密封圈可以是氟橡胶、 PTFE或者金属材质; 所 述加热片黏贴在组织处理缸外壁, 对组织处理缸进行加热; 所述温度传感器可 以贴合在组织处理缸外壁、 内壁、 加热片外壁、 内壁或者通过螺纹装配在组织 处理缸的内部; 所述温度传感器可以是电阻式、 电容式或者红外探温; 所述过 滤装置 FL可以拆卸, 滤膜可以做成快速更换型。
[0074] 石蜡容器配有石蜡箱、 加热片和温度传感器, 所述加热片黏贴在石蜡箱外壁, 对蜡箱进行加热; 所述温度传感器可以贴合在石蜡容器的外壁、 内壁、 加热片 外壁、 内壁等; 所述石蜡缸放置在石蜡箱内, 设计有提手和缸盖, 可以方便提 取和防止石蜡飞溅; 所述石蜡缸的材质可以是不锈钢、 铝合金等导热性能良好 的材料。
[0075] 处理液出入口与旋转阀的公共端口连接, 旋转阀的各个分支端口分别与每个石 蜡容器的石蜡出入口连接, 石蜡容器的石蜡气体出口与冷凝器的入口连接。 处 理液出入口也与阀组合件的公共端口 VCP连接, 阀组合件的各个分支端口 (阀组 合件试剂端口) 分别通过对应的试剂阀与每个试剂容器的试剂出入口连接, 例 如, 一个分支端口 VOP通过第五试剂阀 V5与其中一个固定试剂 (例如 30%福尔 马林等) 容器连接, 试剂容器的试剂出入口与冷凝器的入口连接。 脱水试剂可 以采用乙醇, 如 80%、 85%、 90%和 100%浓度的乙醇, 透明试剂可以采用 100% 二苯甲, 清洗试剂可以采用清水、 100%乙醇或 100%二苯甲。
[0076] 所述第三三通阀 V3的第一端口 NC (常闭端口) 和第四三通阀 V4的第一端口 NC
(常闭端口) 均与所述气体出入口连接, 所述第四三通阀 V4的第二端口 NO (常 幵端口 ) 一方面依次通过第一单向阀 CV1和第一空气过滤器 cndl与第一入气口连 接, 另一方面依次通过第二单向阀 CV2与冷凝器的入口连接, 冷凝器的出口通过
(活性炭) 过滤器与出气口连接, 所述第三三通阀 V3的第二端口 NO (常幵端口 ) 与冷凝器的入口连接, 所述第二三通阀 V2的第一端口 NC (常闭端口) 通过第 二空气过滤器 cnd2与第二入气口连接, 第一三通阀 VI的第一端口 NC、 第二三通 阀 V2的第二端口 NO (常幵端口) 、 第三三通阀 V3的公共端口 C和第四三通阀 V4 的公共端口 C相互连通 (例如可以采用四通接头相互连通) , 第二三通阀 V2的公 共端口 C与气泵 P的入口 A连接, 所述第一三通阀 VI的公共端口 C与气泵的出口连 接, 第二端口 NO (常幵端口) 与冷凝器的入口连接。
[0077] 压力传感器 PS用以检测组织处理缸的气体出入口处的气压, 压力传感器 PS可以 设置在 B点。
[0078] 负压检测装置 NPS用于检测气泵 P入口 A的气压, 如果气泵 P入口 A的负压超过 负压阈值, 则系统控制气泵 P停止转动。 正压检测装置 PPS用于检测气泵 P出口的 气压, 如果气泵 P入口的正压超过正压阈值, 则系统控制气泵 P停止转动。
[0079] 本实施例 1的抽试剂的流程 (以试剂阀 V5对应的固定试剂为例) 如下: 组织处 理缸的缸盖合上并锁紧, 试剂阀 V5通电打幵 (其余试剂阀均没有打幵, 旋转阀 也没有连通石蜡容器) , 第三三通阀 V3和第四三通阀 V4通电分别使各自的公共 端口 C和常闭端口 NC导通 (第一三通阀 VI和第二三通阀 V2没有通电, 常幵端口 NO和公共端口 C连通) , 并启动气泵 P, 组织处理缸内的气体在泵的抽吸作用下 从气体出入口分别通过第三三通阀 V3和第四三通阀 V4的 NC口进入第二三通阀 V 2的 NO口后, 从第二三通阀 V2的 C口流出, 并流过气泵 P内部, 然后从第一三通 阀 VI的 NO口流出, 经过冷凝器的冷凝以及过滤器过滤后排到外界大气中。 在此 过程, 组织处理缸内部逐渐形成负压, 压力传感器监控组织处理缸内的压力, 当到达所需的压力后, 对第四三通阀 V4反复进行通断电使第四三通阀 4的。端 轮流 (交替) 与 NO口或 NC口导通, 当 C口和 NO口导通吋, 外界的气体通过第一 空气过滤器 cndl和单向阀 CV1流入气路系统, 中和气泵建立的多余负压, 可以将 压力在一定范围内稳定, 液体在稳定的压力下被抽吸到组织处理缸内对里面放 置的组织进行浸泡处理。
[0080] 本实施例 1的排试剂流程 (以试剂阀 V5对应的固定试剂为例) 如下: 组织处理 缸的缸盖合上并锁紧, 试剂阀 V5通电打幵 (其余试剂阀均没有打幵, 旋转阀也 没有连通石蜡容器) , 第一三通阀 VI、 第二三通阀 V2、 第三三通阀 V3、 第四三 通阀 V4通电使各自的公共端 C口和常闭端 NC口导通, 启动气泵 P, 外界的气体由 第二空气过滤器 cnd2进入第二三通阀 V2的 NC口后, 流过气泵 P内部, 然后从第 一三通阀 VI的 NC口经过第三三通阀 V3和第四三通阀 V4的 NC口进入组织处理缸 的内部, 在此过程, 组织处理缸内部逐渐形成正压, 压力传感器监控组织处理 缸内的压力, 当到达所需的压力后, 对第四三通阀 V4反复进行通断电使第四三 通阀 V4的 C端轮流与 NO口或 NC口导通, 当 C口和 NO口导通吋, 多余的正压通过 单向阀 CV2流出, 经过冷凝器冷凝以及过滤器过滤后排到外界大气中, 泄走气泵 P建立的多余正压, 可以将压力稳定在一定范围内, 液体在稳定的压力下从组织 处理缸内被排放到试剂阀 V5所对应的试剂容器内, 流入试剂容器内的气体通过 试剂容器气体出口、 经过公共管道流入冷凝器, 经过冷凝器冷凝以及过滤器过 滤后排到外界大气中。
[0081] 本实施例 1的抽石蜡 (以石蜡 1对应的石蜡容器为例) 的流程如下: 组织处理缸 的缸盖合上并锁紧, 旋转阀通道旋转到石蜡 1的位置 (试剂阀 V5至 V16均关闭) , 石蜡 1对应的旋转阀入口与旋转阀出口联通。 然后, 与本实施例 1的抽试剂的 流程相同, 使组织处理缸内的负压达到稳定的压力, 石蜡在稳定的压力下被抽 吸到组织处理缸内对里面放置的组织进行浸泡处理。
[0082] 本实施例 1的排石蜡 (以石蜡 1对应的石蜡容器为例) 的流程如下: 组织处理缸 的缸盖合上并锁紧, 旋转阀通道旋转到石蜡 1的位置 (试剂阀 V5至 V16均关闭) , 石蜡 1对应的旋转阀入口与旋转阀出口联通。 然后, 与本实施例 1的排试剂的 流程相同, 使组织处理缸内的正压达到稳定的压力, 石蜡在稳定的压力下从组 织处理缸内被排放到石蜡 1所对应的蜡缸中, 流入蜡缸的气体通过石蜡容器气体 出口、 经过公共管道流入冷凝器, 经过冷凝器冷凝以及过滤器过滤后排到外界 大气中。
[0083] 本实施例 1的正压建立流程如下: 组织处理缸的缸盖合上并锁紧, 然后, 与本 实施例 1的排试剂的建立正压的流程相同, 使组织处理缸内部逐渐形成正压, 压 力传感器 PS监控组织处理缸内的压力, 当到达所需的压力后, 气泵 P停止工作, 第一三通阀 VI、 第二三通阀 V2、 第三三通阀 V3、 第四三通阀 V4断电, 各自的 N C口与 C口断幵, 组织处理缸内的压力被第三三通阀 V3和第四三通阀 V4封闭保持 正压状态。
[0084] 本实施例 1的负压建立流程如下: 组织处理缸缸盖合上并锁紧, 然后, 与本实 施例 1的抽试剂的建立负压的流程相同, 使组织处理缸内部逐渐形成负压, 压力 传感器 PS监控组织处理缸内的压力, 当到达所需的压力后, 气泵 P停止工作, 第 三三通阀 V3、 第四三通阀 V4断电, 阀的 NC口与 C口断幵, 组织处理缸内的压力 被第三三通阀 V3和第四三通阀 V4封闭保持负压状态。
[0085] 本实施例 1的泄压流程如下: 组织处理缸内封闭有正压的情况下, 第四三通阀 V 4通电 C口和 NC口导通, 第三三通阀 V3关闭使 C口与 NO口导通, 缸内的气体通过 第四三通阀 V4的 NC口、 第三三通阀 V3的 NO口进入冷凝器, 经过冷凝器冷凝以 及过滤器过滤后排到外界大气中, 缸内的正压被排泄掉后与大气压保持平衡; 组织处理缸内封闭有负压的情况下, 第四三通阀 V4通电使 C口和 NC口导通, 第 三三通阀 V3关闭使 C口与 NO口导通, 外界的气体由过滤器和冷凝器流过第三三 通阀 V3的 NO口、 第四三通阀 V4的 NC口进入组织处理缸内, 缸内的负压被中和 后与大气压保持平衡。
[0086] 本实施例 1的正压监控报警流程如下: 在流体系统发生堵塞导致气泵 P工作排出 的气体无法排泄的情况下, 气泵 P的出口处会迅速形成非常高的正压, 设置在气 泵出口处的正压力幵关 PPS检测到该异常压力后反馈给系统一个信号, 系统将停 止气泵 P的工作并启动泄压流程。
[0087] 所述实施例 1的负压监控报警流程如下: 在流体系统发生堵塞导致气泵 P工作吋 入口无法吸入气体的情况下, 气泵 P的入口 A处会迅速形成非常高的负压, 设置 在气泵 P入口处的负压力幵关 NPS检测到该异常压力后反馈给系统一个信号, 系 统将停止气泵 P的工作并启动泄压流程。
[0088] 实施例 2
[0089] 如图 2所示, 本实施例的封闭式组织脱水系统与实施例 1的系统的区别在于: 利 用旋转阀选择连通组织处理缸和各个试剂容器或石蜡容器, 旋转阀具有一个公 共端口, 以及多个分支端口, 每个分支端口连通一个试剂容器或石蜡容器, 当 旋转阀旋转选通某个分支端口后, 对应的容器与组织处理缸连通。
[0090] 本实施例 2的抽试剂的流程与实施例 1的抽试剂的流程的区别在于: 实施例 1通 过阀组合件选通试剂容器和组织处理缸, 并利用对应的试剂阀控制试剂容器与 阀组合件的导通, 而本实施例 2通过旋转阀选通组织处理缸和对应的试剂容器, 然后, 采用与实施例 1相同的方法使液体在稳定的压力下被抽吸到组织处理缸内 对里面放置的组织进行浸泡处理。
[0091] 同样, 本实施例 2的排试剂流程、 抽石蜡流程、 排石蜡流程、 正压建立流程、 负压建立流程、 泄压流程和正压监控报警流程与实施例 1基本相同, 在此不再赘 述。
[0092] 实施例 3
[0093] 如图 3所示, 本实施例 3的封闭式组织脱水系统在实施例 1的封闭式组织脱水系 统进一步增加了一个负压泄压阀 DV1和正压泄压阀 DV2, 负压泄压阀 DV1设置在 单向阀 CV1与第四三通阀的 NO端之间, 正压泄压阀 DV2设置在单向阀 CV2与第 四三通阀的 NO端之间。
[0094] 在抽试剂或石蜡过程中使组织处理缸建立负压的过程如下:
[0095] 第三三通阀 V3通电使公共端口 C和常闭端口 NC导通 (第一三通阀 VI、 第二三 通阀 V2和第四三通阀 V4没有通电, 各自的常幵端口 NO和公共端口 C连通) , 并 启动气泵 P, 组织处理缸内的气体在泵的抽吸作用下从气体出入口通过第三三通 阀 V3的 NC口进入第二三通阀 V2的 NO口后, 从第二三通阀 V2的 C口流出, 并流 过气泵 P内部, 然后从第一三通阀 VI的 NO口流出, 经过冷凝器的冷凝以及过滤 器过滤后排到外界大气中。 在此过程, 组织处理缸内部逐渐形成负压, 当组织 处理缸内形成的压力超过负压泄压阀 DV1预先设定的压力后, 负压泄压阀 DV1和 单向阀 CV1自动打幵, 外界的气体通过第一空气过滤器 cndl、 单向阀 CV1和负压 泄压阀 DV1流入气路系统, 中和气泵建立的多余负压, 压力在一定范围内稳定在 负压泄压阀 DV1的设定值。
[0096] 在排试剂或石蜡过程中使组织处理缸建立正压的过程如下:
[0097] 第一三通阀 VI、 第二三通阀 V2和第三三通阀 V3通电使各自的公共端 C口和常 闭端 NC口导通, 第四三通阀 V4保持关闭, 使 C口和 NO口连通, 启动气泵 P, 夕卜 界的气体由第二空气过滤器 cnd2进入第二三通阀 V2的 NC口后, 流过气泵 P内部 , 然后从第一三通阀 VI的 NC口经过第三三通阀 V3的 NC口进入组织处理缸的内 部, 在此过程, 组织处理缸内部逐渐形成正压, 当组织处理缸内形成的压力超 过正压泄压阀 DV2预先设定的压力后, 正压泄压阀 DV2和单向阀 CV2自动打幵, 多余的正压通过正压泄压阀 DV2和单向阀 CV2流出, 经过冷凝容器冷凝以及过滤 器过滤后排到外界大气中, 泄走气泵 P建立的多余正压, 压力在一定范围内稳定 在正压泄压阀 DV2的设定值。 [0098] 实施例 4
[0099] 如图 4所示, 本实施例 4的封闭式组织脱水系统在实施例 3的封闭式组织脱水系 统进一步增加了: 第五三通阀 V17、 第一液阀 V18、 第二液阀 V19、 液泵 Pl, 阀 组合件具有两个相互连通的公共端口: 阀组合件第一公共端口、 阀组合件第二 公共端口, 组织处理缸还具有位于组织处理缸的上端的处理缸端口。 所述处理 液出入口通过所述第一液阀 V18与所述阀组合件第一公共端口连接, 所述第五三 通阀 V17的公共端口 C通过所述液泵 P1和第二液阀 V19与所述组合阀件第二公共 端口连接, 所述第五三通阀 V17的第一端口 NC和第二端口 NO分别与所述处理缸 端口和所述冷凝器的入口连接。
[0100] 当无法通过气泵 P使组织处理缸建立负压而抽试剂吋, 可以利用如下方式实现 抽试剂 (以试剂阀 V5对应的试剂容器为例) :
[0101] 组织处理缸缸盖合上并锁紧, 第四三通阀 V4、 第五三通阀 V17通电使各自的 C 口和 NC口导通, 试剂阀 V5、 第二液阀 V19通电打幵, 关闭第一液阀 V18、 试剂 阀 V6至 V16, 启动液泵 Pl, 试剂阀 V5对应的试剂容器内的试剂在液泵 PI的抽吸 作用下, 从试剂容器内抽出, 经过组合阀件第二公共端口流入第二液阀 V19, 液 体从第二液阀 V19流经液泵 Pl、 第五三通阀 V17的 NC端后, 从组织处理缸的顶部 的处理缸端口排入组织处理缸内, 液泵 P1持续工作, 液体持续从试剂容器内抽 入组织处理缸, 与此同吋, 缸内多余的气体从组织处理缸的气体出入口通过第 四三通阀 V4的 NC口进入第三三通阀 V3的 NO口流入冷凝容器, 经过冷凝容器冷 凝以及过滤器过滤后排到外界大气中。
[0102] 本实施还可以实现试剂循环, 流程如下: 组织处理缸内充满液体进行组织浸泡 的情况下, 组织处理缸缸盖合上并锁紧, 关闭旋转阀以及试剂阀 V5至 V16, 第五 三通阀 V17通电使 C口和 NC口导通, 第一液阀 V18、 第二液阀 V19通电幵启, 液 泵 P1启动, 液体从组织处理缸底部经过第一液阀 V18进入阀组合件的公共通道后 流入第二液阀 V19, 液体从第二液阀 V19流经液泵 PI、 第五三通阀 V17的 NC端后 , 从组织处理缸的顶部的处理缸端口排入组织处理缸内, 液泵 P1持续工作, 组 织处理缸内的液体将持续从组织处理缸的底部流出, 顶部流入, 实现试剂的循 环搅拌, 使试剂在处理组织过程中浓度分布均匀, 提高组织处理的效果。 [0103] 实施例 5
[0104] 如图 5所示, 本实施例 5的封闭式组织脱水系统在实施例 3的封闭式组织脱水系 统进一步增加了: 液泵 Pl、 第五三通阀 V17、 第六三通阀 V18和第七三通阀 V19 , 所述处理液出入口分别与所述阀组合件公共端口和第五三通阀 V17的第一端口 NC连接, 所述气体出入口分别与所述第六三通阀 V18的第一端口 NC和第七三通 阀 V19的第一端口 NC连接, 所述第六三通阀 V18的公共端口 C和第二端口 NO分别 与所述液泵 P1的入口和第五三通阀 V17的公共端口 C连接, 所述第七三通阀 V19 的公共端口 C和第二端口 NO分别与所述液泵 P1的出口和所述冷凝器的入口连接 , 所述第五三通阀 V17的第二端口 NO与所述冷凝器的入口连接。
[0105] 在气泵 P无法实现抽试剂的情况下, 可以通过如下方式进行抽试剂 (以试剂阀 V5对应的试剂为例) : 组织处理缸缸盖合上并锁紧, 试剂阀 V5通电打幵 (试剂 阀 V6至 V16保持关闭) , 第三三通阀 V3、 第六三通阀 V18通电分别使各自的 C口 和 NC口导通 (第四三通阀 V4、 第五三通阀 V17和第七三通阀 V19保持关闭, 分 别使各自的 C口和 NO口连通) , 液泵 P1启动, 组织处理缸内的气体在液泵 P1的 抽吸作用下通过第六三通阀 V18的 NC口后流过液泵 P1内部, 然后从第七三通阀 V 19的 NO口流出, 经过冷凝器冷凝以及过滤器过滤后排到外界大气中, 在此过程 , 组织处理缸内部逐渐形成负压, 当组织处理缸内形成的压力超过负压泄压阀 D VI预先设定的压力后, 负压泄压阀 DV1和单向阀 CV1自动打幵, 外界的气体通 过第一空气过滤器 cndl、 单向阀 CV1和负压泄压阀 DV1流入气路系统, 中和气泵 建立的多余负压, 压力在一定范围内稳定在负压泄压阀 DV1的设定值, 液体在稳 定的压力下被抽吸到组织处理缸内对里面放置的组织进行浸泡处理。
[0106] 本实施例 5的排试剂流程可以如下: 组织处理缸缸盖合上并锁紧, 试剂阀 V5通 电打幵, 第三三通阀 V3、 第七三通阀 V19通电使 C口和 NC口导通, 第五三通阀 V 17和第六三通阀 V18关闭使各自的 C口与 NO口连通, 启动液泵 Pl, 外界的气体由 过滤器和冷凝器通过第五三通阀 V17的 NO和 C口后, 再通过第六三通阀 V18的 N 0和 C口后, 然后流过液泵 P1内部, 然后从第七三通阀 V19的 NC口进入组织处理 缸的内部, 在此过程, 组织处理缸内部逐渐形成正压, 当组织处理缸内形成的 压力超过正压泄压阀 DV2预先设定的压力后, 正压泄压阀 DV2和单向阀 CV2自动 打幵, 多余的正压通过正压泄压阀 DV2和单向阀 CV2流出, 经过冷凝器冷凝以及 过滤器过滤后排到外界大气中, 泄走气泵建立的多余正压, 压力在一定范围内 稳定在正压泄压阀 DV2的设定值, 液体在稳定的压力下从组织处理缸内被排放到 试剂阀 V5所对应的试剂容器内, 流入试剂容器内的气体经过公共管道流入冷凝 器, 经过冷凝器冷凝以及过滤器过滤后排到外界大气中。
[0107] 本实施例 5的试剂循环的流程如下: 组织处理缸内充满液体进行组织浸泡的情 况下, 组织处理缸缸盖合上并锁紧, 第五三通阀 V17、 第七三通阀 V19通电使各 自的 C口和 NC口导通, 第三三通阀 V3和第四三通阀 V4关闭, 使各自的 C口和 NO 口连通, 试剂阀 V5至 V16、 旋转阀关闭, 液泵 P1启动, 液体从组织处理缸底部 经过第五三通阀 V17的 NC和 C口, 再经过第六三通阀 V18的 NO和 C口, 流经液泵 P1后经过第七三通阀 V19的 C口和 NC口, 从组织处理缸的顶部排入组织处理缸内 , 液泵 P1持续工作, 组织处理缸内的液体将持续从组织处理缸的底部流出, 顶 部流入, 实现试剂的循环搅拌, 使试剂在处理组织过程中浓度分布均匀, 提高 组织处理的效果。
[0108] 以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明, 不能认 定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通技术 人员来说, 在不脱离本发明构思的前提下, 还可以做出若干简单推演或替换, 都应当视为属于本发明由所提交的权利要求书确定的专利保护范围。

Claims

权利要求书
[权利要求 1] 一种封闭式组织脱水系统, 包括组织处理缸、 石蜡容器、 试剂容器 和气泵, 所述组织处理缸包括分别位于所述组织处理缸下端和上端的 处理液出入口和气体出入口, 所述处理液出入口通过阀与所述石蜡容 器和试剂容器连接, 其特征是: 所述封闭式组织脱水系统还包括第一 三通阀、 第二三通阀、 第三三通阀和第四三通阀, 所述第三三通阀的 第一端口和第四三通阀的第一端口均与所述气体出入口连接, 所述第 四三通阀的第二端口分别与入气口和出气口连接, 所述第三三通阀的 第二端口与出气口连接, 所述第二三通阀的第一端口和公共端口分别 与入气口和气泵的入口连接, 所述第一三通阀的第二端口和公共端口 分别与出气口和气泵的出口连接, 所述第一三通阀的第一端口、 第二 三通阀的第二端口、 第三三通阀的公共端口和第四三通阀的公共端口 相互连通。
2、 如权利要求 1所述的封闭式组织脱水系统, 其特征是, 还包括冷凝 器和第一过滤器, 所述第一三通阀的第二端口、 第三三通阀的第二端 口和第四三通阀的第二端口连接所述冷凝器的入口, 所述冷凝器的出 口通过所述第一过滤器与出气口连接。
3、 如权利要求 2所述的封闭式组织脱水系统, 其特征是, 所述石蜡容 器包括石蜡出入口和石蜡容器气体出口, 所述试剂容器包括试剂出入 口和试剂容器气体出口, 所述石蜡出入口和试剂出入口通过阀与所述 处理液出入口连接, 所述石蜡容器气体出口和试剂容器气体出口与所 述冷凝器的入口连接。
4、 如权利要求 2所述的封闭式组织脱水系统, 其特征是, 所述入气口 包括第一入气口和第二入气口, 所述第四三通阀的第二端口通过第一 单向阀和第一空气过滤器与第一入气口连接, 所述第二三通阀的第一 端口通过第二空气过滤器与第二入气口连接。
5、 如权利要求 2所述的封闭式组织脱水系统, 其特征是, 还包括液泵 、 第五三通阀、 第一液阀、 第二液阀、 阀组合件和试剂阀, 所述组织 处理缸还包括位于所述组织处理缸的上端的处理缸端口, 所述阀组合 件包括阀组合件第一公共端口、 阀组合件第二公共端口和阀组合件试 剂端口, 所述处理液出入口通过所述第一液阀与所述阀组合件第一公 共端口连接, 所述第五三通阀的公共端口通过所述液泵和第二液阀与 所述组合阀件第二公共端口连接, 所述第五三通阀的第一端口和第二 端口分别与所述处理缸端口和所述冷凝器的入口连接, 所述阀组合件 试剂端口通过所述试剂阀与所述试剂容器连接。
6、 如权利要求 2所述的封闭式组织脱水系统, 其特征是, 还包括液泵 、 第五三通阀、 第六三通阀、 第七三通阀、 阀组合件和试剂阀, 所述 阀组合件包括阀组合件公共端口和阀组合件试剂端口, 所述处理液出 入口分别与所述阀组合件公共端口和第五三通阀的第一端口连接, 所 述气体出入口分别与所述第六三通阀的第一端口和第七三通阀的第一 端口连接, 所述第六三通阀的公共端口和第二端口分别与所述液泵的 入口和第五三通阀的公共端口连接, 所述第七三通阀的公共端口和第 二端口分别与所述液泵的出口和所述冷凝器的入口连接, 所述第五三 通阀的第二端口与所述冷凝器的入口连接, 所述阀组合件试剂端口通 过所述试剂阀与所述试剂容器连接。
7、 如权利要求 1所述的封闭式组织脱水系统, 其特征是, 所述第四三 通阀的第二端口与入气口之间设置有负压泄压阀, 所述第四三通阀的 第二端口与出气口之间设置有正压泄压阀。
8、 如权利要求 1所述的封闭式组织脱水系统, 其特征是, 还包括压力 传感器, 所述压力传感器用于检测所述气体出入口的气压, 当所述气 压超过设定气压阈值吋, 所述第四三通阀的公共端口交替与所述第四 三通阀的第一端口和第二端口导通。
9、 一种如权利要求 1所述的封闭式组织脱水系统的控制方法, 其特征 是, 包括负压建立步骤和正压建立步骤,
所述负压建立步骤包括如下步骤:
使第四三通阀的第一端口与公共端口连通、 第三三通阀的第一端口与 公共端口连通、 第二三通阀的第二端口与公共端口连通、 第一三通阀 的第二端口与公共端口连通;
启动所述气泵;
所述正压建立步骤包括如下步骤:
使第四三通阀的第一端口与公共端口连通、 第三三通阀的第一端口与 公共端口连通、 第二三通阀的第一端口与公共端口连通、 第一三通阀 的第一端口与公共端口连通;
启动所述气泵。
10、 如权利要求 9所述的封闭式组织脱水系统的控制方法, 其特征是 , 还包括如下步骤:
当所述气体出入口的气压达到设定压力后, 使所述第四三通阀的公共 端口交替与第一端口和第二端口导通。
11、 一种如权利要求 5所述的封闭式组织脱水系统的控制方法, 其特 征是, 在所述气泵无法使所述组织处理缸抽试剂的情况下, 所述控制 方法包括如下步骤:
使第四三通阀的公共端口与第一端口连通、 第三三通阀的公共端口与 第二端口连通、 第五三通阀的公共端口与第一端口连通, 打幵所述试 剂阀和第二液阀, 关闭所述第一液阀;
启动所述液泵。
12、 一种如权利要求 5所述的封闭式组织脱水系统的控制方法, 其特 征是, 还包括试剂循环步骤:
使第五三通阀的公共端口和第一端口导通, 幵启所述第一液阀和第二 液阀, 关闭所述试剂阀;
启动所述液泵, 使所述组织处理缸内的试剂依次经过第一液阀、 阀组 合件第一公共端口、 阀组合件第二公共端口、 第二液阀、 液泵、 第五 三通阀的公共端口和第一端口, 从所述处理缸端口排入所述组织处理 缸内。
13、 一种如权利要求 6所述的封闭式组织脱水系统的控制方法, 其特 征是, 所述第四三通阀的第二端口与入气口之间设置有负压泄压阀, 所述第四三通阀的第二端口与出气口之间设置有正压泄压阀; 在所述气泵无法使所述组织处理缸抽试剂的情况下, 所述控制方法包 括如下步骤:
使所述第三三通阀的公共端口与第一端口连通、 第六三通阀的公共端 口与第一端口连通、 第四三通阀的公共端口与第二端口连通、 第五三 通阀的公共端口与第二端口连通、 第七三通阀的公共端口与第二端口 连通、 第四三通阀的公共端口与第二端口连通;
幵启所述试剂阀和液泵。
14、 一种如权利要求 6所述的封闭式组织脱水系统的控制方法, 其特 征是, 所述第四三通阀的第二端口与入气口之间设置有负压泄压阀, 所述第四三通阀的第二端口与出气口之间设置有正压泄压阀; 在所述气泵无法使所述组织处理缸排试剂的情况下, 所述控制方法包 括如下步骤:
使所述第三三通阀的公共端口与第一端口连通、 第七三通阀的公共端 口与第一端口连通、 第五三通阀的公共端口与第二端口连通、 第六三 通阀的公共端口与第二端口连通、 第四三通阀的公共端口与第二端口 连通;
幵启所述试剂阀和液泵。
15、 一种如权利要求 6所述的封闭式组织脱水系统的控制方法, 其特 征是, 所述第四三通阀的第二端口与入气口之间设置有负压泄压阀, 所述第四三通阀的第二端口与出气口之间设置有正压泄压阀; 所述控制方法还包括试剂循环步骤:
使第五三通阀的公共端口与第一端口连通、 第六三通阀的公共端口与 第二端口连通、 第七三通阀的公共端口与第一端口连通、 第三三通阀 的公共端口与第二端口连通、 第四三通阀的公共端口与第二端口连通
, 关闭所述试剂阀;
启动所述液泵, 使所述组织处理缸内的试剂依次经过第五三通阀、 第 六三通阀、 液泵、 第七三通阀, 从所述气体出入口排入所述组织处理 缸内。
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