66 results about "Perfusion Pump" patented technology

The present disclosure is directed to a system and method for inflating and perfusing a body organ. The system and method includes a housing, a vacuum source, a perfusion pump and a temperature control module. The housing defines a cavity for containing an ex vivo body organ. In embodiments, the housing may include a cover. The housing includes one or more apertures that are defined therethrough and configured to mechanically interface with one or more sensors. The vacuum source is configured to inflate and deflate the body organ. The perfusion pump is configured to circulate a solution into the body organ. The temperature control module is operatively connected to one or more heating elements and one or more cooling elements. In addition, the temperature control module is configured to regulate the temperature of the body organ within the housing.

A blood oxygenator includes an integral pneumatic pump disposed substantially within a housing thereof, an inlet blood flow redirector, and an outflow blood collector. An atrium provided at an inlet of the oxygenator promotes even delivery of blood to the oxygenator. In use, the oxygenator provides an even dispersion of blood therethrough, establishing even perfusion and reducing areas of stagnant blood flow.

The invention discloses a temperature and pressure real-time monitoring and adjusting device used for a urogenital tract intraluminal surgery. The temperature and pressure real-time monitoring and adjusting device comprises a perfusion fluid inputting and adjusting system, a temperature and pressure monitoring system and a medical waste water and waste residue treatment system. The perfusion fluid inputting and adjusting system is used for mixing a perfusion fluid in an indoor-temperature perfusion fluid soft bag and a perfusion fluid in a preheating perfusion fluid soft bag, and inputting the mixture into an endoscope body by means of a perfusion pump; the temperature and pressure monitoring system is used for detecting temperature data and pressure data in a surgery area in real time by means of an optical-fiber-type temperature and pressure sensor, receiving a video signal collected by a video collecting system by means of an endoscope video signal receiving unit, and outputting the temperature data, the pressure data and the video signal to a display unit; the medical waste water and waste residue treatment system is used for separating medical waste water from medical waste residues, and conducting innocent treatment on the medical waste water. The temperature and pressure real-time monitoring and adjusting device is suitable for the urogenital tract intraluminal surgery, it can be guaranteed that the surgery is conducted at the proper temperature and pressure in the whole process, and operative complications are reduced or even avoided.

The invention relates to an in situ perfusion method for remediation of organic contaminated groundwater. The method includes: opening an extraction valve and a by-pass valve, starting an extraction pump, and conveying contaminated groundwater in an extraction well into a reagent preparation tank through an extraction pipeline; starting a stirrer in the medicament preparation tank, adding a reagent into the reagent preparation tank and stirring the reagent with groundwater evenly to obtain a remediation reagent; opening a reagent perfusion valve and a reagent perfusion pump, injecting the remediation reagent into perfusion wells through a circulating water pipeline and perfusion pipelines; closing the reagent perfusion valve and the reagent perfusion pump, starting the extraction pump and injecting the groundwater in the extraction well into respective perfusion wells through the circulating water pipeline and the perfusion pipelines, and circulating the water power between the extraction well and the perfusion wells; starting a self-priming jet pump on a sampling pipeline, collecting the groundwater in a monitoring well, detecting the redox potential of groundwater and organic pollutant removal rate, and ending remediation until the groundwater is detected to be qualified. The method provided by the invention saves remediation time and cost, and improves the remediation effect.

The invention provides a cold saline perfusion ablation catheter system. The cold saline perfusion ablation catheter system comprises a cold saline perfusion ablation catheter, a radio frequency instrument and a perfusion pump, wherein the radio frequency instrument is coupled to the catheter to provide radio frequency pulse energy; the perfusion pump is connected to the catheter, and is used for conveying cold saline according to at least one of set flow, accumulated flow and flow-time sequence. The cold saline perfusion ablation catheter system is characterized in that the perfusion pump comprises a refrigerating component for refrigerating the cold saline according to a set temperature. In the system, the perfusion pump has an automatic refrigerating function, so that the conventionally-applied normal saline can be refrigerated to a proper low temperature; low-temperature cold saline is perfused during ablation, so that an ablation electrode can be flushed more effectively, the surface temperature of the electrode is better lowered, sufficient inflation energy can be applied, and the melting depth can be increased more effectively. Moreover, the cold saline perfusion ablation catheter in the system can be commercial-available cold saline perfusion ablation catheters of various models directly, and only the radio frequency instrument and the perfusion pump need to be improved, so that the manufacturing cost of the whole system is reduced, and the production difficulty is lowered.

The invention discloses a method for fixing a fish brain tissue specimen through systemic heart perfusion. The method is mainly characterized in that after fish anesthesia, thoracotomy is performed on the periphery of a heart surface projection area of the fish, ventral aorta intubation is performed through the ventricle, common cardinal vein intubation is performed through the atrium, ligation with an operation thread is used for fixing, and an out flow tube is connected with a graduated vessel for measuring liquid out-flowing quantity; a constant-speed perfusion pump is used for perfusing normal saline through a perfusion tube, and a 10% formalin solution is adopted for reperfusion; when perfusion is started, a line is marked on the skull instantly and craniotomy is performed, and the perfusion time is then decided through combination of the perfusion quantity and the out-flowing quantity when the color of the brain tissue changes white; the brain is picked and placed in the 10% formalin solution to be fixed for 48 h after perfusion is stopped, and the brain tissue specimen with complete structure, normal form and good state is obtained. By means of the method, the problems of insufficient fixing, non-comprehensive fixing area, tissue autolysis, cell deformation and the like of the fish brain tissue can be solved effectively, the brain tissue specimen with more complete structure and more ideal state is obtained easily, and the natural form is retained better.

Hydraulic pulsation equipment is intended for varying the volume of a chamber of a perfusion pump by alternatively inflating and deflating the same by means of a movement transmitting liquid fluid. It comprises a lung body provided with an elastic and deformable frontal membrane over which an external piston, which can be moved alternatively in both directions, enters into contact, and said piston originates from one of the sides of a control console. This console also has an enveloping ring head that surrounds the external piston, while constituting the fixation means of the lung body, which has a terminal narrowing connected to an intermediate tubular duct culminating in the chamber of the perfusion pump, and the movement transmitting liquid fluid is located in a space comprising a front part of the lung body, the intermediate tubular duct and the chamber of the perfusion pump.

The invention relates to a bladder drainage medicine perfusion device. A urethral catheter is a three-chamber catheter provided with a urination drainage chamber, a water injection chamber and a medicine perfusion chamber, wherein the three chambers of the urethral catheter are respectively independent; the urination drainage chamber is positioned in the center of the urethral catheter, the upper end of the urethral catheter is closed, the side wall on the upper end is provided with a drainage port which is communicated with the urination drainage chamber, and the end surface of the lower end of the urethral catheter is provided with an outlet of the urination drainage chamber which is communicated with a urine drainage bag; the water injection chamber and the medicine perfusion chamber are respectively arranged in the side wall of the urethral catheter; a water injection port on the upper end of the water injection chamber is communicated with a positioning sac, a water injection hole on the lower end of the water injection chamber is connected with a water injection interface, and the water injection interface is provided with a switch; and a medicine perfusion port on the upper end of the medicine perfusion chamber extends through the side wall of the urethral catheter, a medicine perfusion hole on the lower end of the medicine perfusion chamber is connected with a medicine perfusion interface, the medicine perfusion interface is connected with a medicine perfusion pump capable of adjusing the flow rate through a catheter, and one end of the medicine perfusion pump is connected with a medicine tank. The bladder drainage medicine perfusion device is simple in structure and convenient to use, has a urethral catheterization function, and can continuously and slowly perfuse medicine into the bladder as required.

A reversible liquid filtration system for cell culture perfusion comprises: a bioreactor vessel (B4), for storing the cell culture (L4); a perfusion pump (P7), comprising a reciprocable element (P71) which is movable in opposing first and second pumping directions (dF, dR); a filter (F4); and first and second bi-directional valves (BV1, BV2), each selectively controllable between open and closed positions. The perfusion pump (P7), the filter (F4), and the first and second bi-directional valves (BV1, BV2), together comprise a fluidic circuit in communication with the bioreactor vessel (B4). The bi-directional valves (BV1, BV2) are controllable to open and close in co-ordination with the reciprocating perfusion pump (P7), in order to enable both a two-way filtering flow around the fluidic circuit and also an alternating filtering flow between the bioreactor vessel (B4) and the perfusion pump (P7).

The invention belongs to the technical field of biological engineering, and provides a perfusion tumor thermal therapy instrument, which is used for solving the technical problem of potential safety hazard occurring easily in the treatment process of the perfusion tumor thermal therapy instrument. The perfusion tumor thermal therapy instrument comprises a liquid medicament tank, wherein the liquid medicament tank is connected with a perfusion conduit and a reflux conduit respectively; the liquid medicament tank is further connected with a weighing sensor; the perfusion conduit is provided with an output valve, a perfusion pump, an infrared heater, a first temperature sensor and a perfusion valve in sequence; the reflux conduit is provided with a reflux pump, a second temperature sensor and a reflux valve in sequence; the tail end of the perfusion conduit is provided with a perfusion connecting tube; and the tail end of the reflux tube is provided with a reflux connecting tube. The invention further provides a method for realizing safety protection of the perfusion tumor thermal therapy instrument. The treatment temperature and the residual quantity of a liquid medicament are monitored in real time during thermal perfusion treatment, so that problems easily occurring in the treatment process can be judged, and treatment is stopped immediately once a certain problem is judged to prevent hurting patients or operating personnel.

The invention discloses a medical lavage system. The medical lavage system comprises a master control device, at least one perfusion device for pouring a flushing liquid as well as at least one suction device for sucking the flushing liquid, wherein the perfusion device comprises a perfusion pipeline and a perfusion pump for driving the flushing liquid to flow in the perfusion pipeline; the suction device comprises a suction pipeline and a suction pump for driving the flushing liquid to flow in the suction pipeline; and the master control device is connected with the perfusion pump and the suction pump and controls start and stop of the perfusion pump and the suction pump separately. The medical lavage system is used for minimally invasive lavage therapy of abscess in soft tissue, replacesan existing conventional needle injection cleaning therapy method, realizes full-automatic operation of perfusion and suction in therapy process and provides multiple perfusion therapy control methods according to different and actual conditions of diseases; and doctors are liberated, the operation difficulty is reduced, the operation safety is improved, and operation promotion is facilitated.

The invention relates to a device for the preservation of a hepatic graft in normothermia comprising a receptacle in which said hepatic graft is housed in a preservation solution, an arterial perfusion circuit, a portal perfusion circuit, at least one flow sensor of a perfusion circuit, and at least one pressure sensor of a perfusion circuit. For the purpose of increasing the preservation of the hepatic graft, the preservation device additionally comprises an arterial oxygenator connected to the arterial perfusion circuit, a portal oxygenator connected to the portal perfusion circuit, at least one arterial perfusion pump, at least one portal perfusion pump, a temperature exchange module configured to maintain the temperature inside the receptacle in normothermia, and a pressure and flow control device.

The invention discloses a flexible ureteroscope sheath and a continuous circulation type perfusion and suction system. The flexible ureteroscope sheath comprises a flexible catheter sheath and a ureter, the ureter is sleeved with the catheter sheath, a circle of infusion tube adheres to the periphery of the catheter sheath, and a circle of annular capillary tube adheres to the tail end of the catheter sheath along the circumference; the annular capillary tube is adhered to the tail end of the infusion tube and communicated through a needle hole; the periphery of the ureter is sleeved with a slidable sliding sleeve, an annular rotary knob is arranged at the tail end of the sliding sleeve, the outer surface of the sliding sleeve is provided with crescent protrusions extending in the circumferential direction of the sliding sleeve, the ureter penetrates through the two ends of the catheter sheath, the head ends of the ureter and the catheter sheath are connected, and the remaining sections of the ureter and the catheter sheath are in clearance fit. The protrusions on the surface of the sliding sleeve can be inserted between the two and pulled out, and the sliding sleeve can rotate between the two. The continuous circulation type perfusion and suction system comprises a flushing loop formed by connecting a perfusion pump in series between a sterile sealed liquid tank and the ureter, and a water return loop formed by connecting a precipitation container and a suction and discharge pump in series between the catheter sheath and the sterile sealed liquid tank.

A medical perfusion pump is composed of a casing, a rotor, an elastic U-shaped tube close to the inner surface of said casing, and at least two rollers arranged on the circumference of said rotor and closely pressing said elastic U-shaped tube to divide its internal space into several cavities. When the rotor is rotating, the rollers are moving relatively to the tube to segmentally push the liquid medicine in the tube, making it to flow. Said U-shaped tube is exchangeable for preventing secondary pollution.

A portable perfusion pump with the functions of reporting time, constant temp and flow regulation is composed of electrothermal element, perfusion bag holder, air pump, flow meter, and time reporter.

The invention provides a surgical training simulation device and a surgical training system, and relates to the technical field of medical instruments. The surgical training simulation device comprises a shell, wherein a mesh plate for placing a surgical organ is arranged in the shell, so that the shell is divided into an operation cavity for surgical training and a perfusion cavity for containingperfusion liquid; a skin simulation layer for sealing the operation cavity is arranged on the shell, and the position of the mesh plate corresponds to the skin simulation layer, so that the surgicalinorgan is subjected to surgical operation after the skin simulation layer is cut open; and a perfusion pump is arranged in the shell, the perfusion pump is provided with a liquid inlet and a liquid outlet connected with the artery of the surgical organ, and the liquid inlet of the perfusion pump communicates with the perfusion cavity. The surgical training system comprises an operation electrotomeand the surgical training simulation device, part of isolated organs are used, the simulated hand feeling is provided, the artery and vein channels of the organs are utilized for perfusion of blood,and the authenticity of operation is improved.

An automated bioreactor system for decellularizing an organ includes a main chamber for containing the organ. The system further includes a reagent chamber containing a liquid phase reagent. A reagent conduit delivers the liquid phase reagent to the main chamber, and a perfusion conduit delivers the reagent from the reagent outlet in the main chamber into the organ. A perfusion pump drives the flow of the reagent. A perfusion pressure sensor detects a pressure of the flowing reagent. A control system controls the perfusion pump to drive the flow of the reagent based on a received input representative of a desired pressure and a received input of the detected pressure. The control system may automatically perform all of the steps of a decellularization protocol based on sensor input. An automated waste decontamination system may also be provided.

The invention discloses a bipolar ablation system with dual perfusion and ECG output. The system comprises a single bipolar radio frequency system and a perfusion system. A control MCU in the single bipolar radio frequency system isolates a transmission controller and a radio frequency power amplifier driving circuit through a control signal. A radio frequency power amplifier circuit is connectedwith the radio frequency power amplifier driving circuit and a power amplifier power supply. A radio frequency output end is connected with a first ablation catheter output channel, a second ablationcatheter output channel and a back polar plate through a single bipolar channel switching circuit. The control MCU is connected with a filter circuit through a filter enable relay. The filter circuitis connected with an ECG analog port. The perfusion system comprises first and second perfusion pumps which are communicatively connected with the control MCU in the single bipolar radio frequency system through a perfusion pump isolation communication controller respectively. The bipolar ablation system controls the corresponding perfusion pump to output a high quality ECG signal according to different radio frequency outputs, can improve the ablation efficiency, and at the same time can reduce the surgical risk.