68 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.

In a wireless medical component (10), when it is desired to lessen the clutter of cables and increase mobility and versatility relative to cabled components, a battery life monitor, particularly a voltage monitor (16) takes voltage readings of a battery (12) to assess charge level as the battery (12) drains. The monitored charge level and medical data are transmitted (20) to a receiver (22) associated with a remote host unit (24). The host unit includes historical and typical battery level information and estimates remaining life of the battery (12). Battery life and medical information are displayed on a user interface (42). Typical medical components include ekg sensors, pulse sensors, blood oxygen sensors, blood measure sensors, brain wave sensors, temperature sensors, perfusion pumps, IV drip controllers, patient identification tags or wrist bands, pacemakers, respirators, x-ray detectors, and an MRI coils.

A perfusion pump system for providing perfusate to an organ of a human body includes an actuator coupled to a pump to provide an actuating force to the pump. The pump includes an outlet for providing a perfusate to an organ coupled to the pump and an inlet for receiving the perfusate. The pump is configured to provide a pulsatile pumping force to the perfusate via a pumping stroke in response to the actuating force. The pumping stroke is followed by a return stroke. The pumping stroke causes the pump to collapse to force a flow of the perfusate through the outlet to the organ. The pump collapses in the direction of the flow of the perfusate. The return stroke allows the perfusate to enter the pump through the inlet and the return stroke of ways providing the perfusate through the outlet.

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 provides a control method of a medical filling pump and a system using the control method. The system comprises an adaptive controller, a pressure monitoring device, a flow rate monitoring device, a control signal actuator and a filling pump; the pressure of a filling point can be accurately calculated according to output pressure of the filling pump, output flow rate of a filling pipeline of an endoscope, and static water pressure generated under the relative height between the output of a filling pipeline and the filling pump, so that the output flow rate of the filling pump can be accurately controlled according to the pressure of the filling point; the pressure monitoring device is not needed to be conveyed to a working point together with the endoscope, so that the manual operation can be effectively simplified, and the circumstance that the sensor is mechanically interfered to cause inaccurate measurement and is easily impacted by mistake by laser and damaged and even falls into the body can be avoided; in addition, the warning can be proposed according to the in-vivo pressure obtained by calculation and by setting and automatically adjusting the output flow rate, pressure and other indexes of the filling pump, thus the security can be ensured, and moreover, a small channel can be adopted, and as a result, a wide video field and high efficiency can be achieved.

The invention discloses a numerical control system capable of performing real-time control on renal pelvis pressure in ureteroscopy based on sheath-side optical fiber pressure sensor monitoring, whichcomprises an optical fiber pressure measuring system, an independent double-channel ureter leading-in sheath, a numerical control platform with a perfusion / attraction function and an intelligent terminal. In the system, a perfusion pump of a soft mirror connected with the numerical control platform enters a kidney through a main channel of the ureter leading-in sheath; an optical fiber pressure sensor enters a renal pelvis through a side channel to monitor the pressure of the renal pelvis, and both channels can be connected with negative pressure suction of the numerical control platform. According to the measured pressure feedback, the numerical control platform carries out data interaction with the intelligent terminal through wire / wireless; the intelligent terminal collects and analyzes the data in the operation, synchronously optimizes the working mode and can carry out later maintenance on the numerical control platform. The numerical control system has the advantages of real-time accurate pressure control, convenient adjustment and maintenance and the like, can effectively prevent complications such as kidney injury, serious infection and the like caused by high pressure inthe soft mirror operation, and improves the safety and the efficiency of the operation.

The invention provides a self-controlled medical charging pump and control method, wherein the charging pump method comprises an execution module, a function module used for inputting information and receiving the feedback signal and a control module used for controlling the operation of the function module and the execution module; the control module comprises a I / O unit, a microprocessing chip and a memory unit; the function module comprises an input unit and a signal I / O unit. The control method comprises steps that: inputting the user instruction, selecting the corresponding operating mode according to the input user instruction and executing related actions. The medical charging pump can work at stand-along mode or linkage working mode, wherein the linkage working mode is controlled by surgical equipment which performs surgery, timely controls the open and close of the water flow according to the status of the surgical equipment and realizes effective control of the water flow in operation. The medical charging pump has the advantages that water intoxication complication due to sustainable flush or unnecessary body temperature decrease due to excess washing water consumption or excess flush is decreased.

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.

The present invention relates to pumps, particularly a compact, linear, positive displacement pump that can be used in several applications including medical and non-medical devices. In particular, the invention is related to linear, positive displacement compression blood pumps (either intracorporeal or extracorporeal) that provide systemic circulatory stability by maintaining a steady average blood pressure. In some embodiments, the invention relates to perfusion pumps, infusion pumps, pumps used for ECMO (extracorporeal membrane oxygenators) and bioreactor pumps.

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 discloses a normal-temperature perfusion system, in particular discloses a normal-temperature perfusion system for storing human kidneys, and belongs to the technical field of designing and manufacturing medical instruments. The invention provides a normal-temperature perfusion system for storing human organs, which can obviously reduce functional lesions to a stored kidney during storage of transplanted organs. The normal-temperature perfusion system comprises a perfusion pump, a human organ storage device and a perfusion liquid monitoring component, wherein a perfusion liquid input end and a perfusion liquid output end of the perfusion pump are penetrated into the human organ storage device and then are communicated with a perfusion body fluid output end and a perfusion body fluid output end of a human organ needed to be stored respectively; the perfusion liquid monitoring component is connected with the perfusion liquid output end of the perfusion pump in series; the human organ storage device also comprises a temperature adjusting mechanism; and the ambient temperature of the human organ storage device is adjusted and controlled by the temperature adjusting mechanism.

The invention relates to a device for the preservation of a hepatic graft (1) in normothermia comprising a receptacle (2) in which said hepatic graft (1) is housed in a preservation solution, an arterial perfusion circuit (3), a portal perfusion circuit (5), at least one flow sensor (7) of a perfusion circuit, and at least one pressure sensor (8) of a perfusion circuit. For the purpose of increasing the preservation of the hepatic graft (1), the preservation device additionally comprises an arterial oxygenator (11) connected to the arterial perfusion circuit (3), a portal oxygenator (12) connected to the portal perfusion circuit (5), at least one arterial perfusion pump (9), at least one portal perfusion pump (10), a temperature exchange module (13) configured to maintain the temperature inside the receptacle (2) in normothermia, and a pressure and flow control device (14).

A test method used in bio-kinetics for measuring the kinetic parameters of living things features use of a constant-speed perfusion method combining pressure- measuring inject with pressure-measuring perfusion. Its apparatus is composed of pressure measuring tube and constant-speed perfusion unit connected to injector and motor drive mechanism.

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 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 provides a urethral canal pressure measuring pipe, a pressure measuring device and a fluid form resistance measuring device. The pressure measuring pipe comprises a filling cavity, threepressure measuring cavities and four channels arranged integrally, and open holes corresponding to corresponding positions of a human body. In four channel ports of the first end of the pressure measuring pipe, a filling cavity channel port is used for connecting with a filling pump, and three pressure measuring cavity channel ports are used for connecting with a pressure sensor respectively; after the pressure measuring pipe stretches into a preset position of a urethral canal of the human body, the open hole of the filling cavity is located on the most tail end of the pressure measuring pipe and is located in a bladder of the human body; the open holes of the three pressure measuring cavities are respectively located in the bladder of the human body, the lower end of prostate and a position which is 2+ / -0.5cm far away from an in-vitro urethral canal outlet of the human body; each urethral canal fluid form resistance is calculated according to a formula as shown in the description, so that a urethral canal obstruction type and a prostate obstruction degree can be conveniently evaluated.

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.

The invention provides a medical perfusion pump. The medical perfusion pump comprises a pump body and a pipeline used for conveying liquid, the pump body comprises a first side face and a second sideface which are adjacently arranged, a pump wheel is connected to the first side face, a heating device is connected to the second side face, the pipeline comprises a heating section and an adjusting section which are arranged in a length direction, the heating section is located in the heating device, the heating device heats liquid in the heating section, the adjusting section is connected with the pump wheel, the pump wheel extrudes the liquid in the adjusting section, a driving part is further arranged in the pump body, a transmission shaft of the driving part is connected with the pump wheel, and a control device for controlling the heating device and the driving part is further arranged on the pump body. The heating device of the infusion pump is arranged on the pump body, so that thewhole infusion pump is convenient to move, and space occupied by the infusion pump during use is reduced.

The invention discloses a voice-activated myocardial protection perfusion system, comprising a box body, a box cover and a sterile inner container, wherein the box body is internally provided with a control box, a first perfusion bottle, a second perfusion bottle, a first perfusion pump and a second perfusion pump, the control box is internally provided with a first microcontroller, a first powersupply module, a specific person voice recognition circuit, an information recognition module connected with a sound collection module, a first flow sensor and a second flow sensor, an output end of the first microcontroller is connected with a first driving module, a second driving module, a first valve drive and a second valve drive, and the sterile inner container is provided with a first sprayhead and a second spray head. The sterile inner container of the system can be taken out from the box body to be disinfected and sterilized, and a medical aseptic standard is met; the effect of voice-controlled myocardial perfusion is realized by the specific human voice recognition circuit, the sound collection module and the information recognition module, and the stable and safe internal environment is ensured when the myocardium is transferred in vitro, thus reducing the disinfection frequency during transfer.

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.