8 results about "Perfusion" patented technology

The invention discloses a controllable bilateral-deflection perfusion electrophysiologic conduit which comprises at least one section of spirally wound electrode arranged on the conduit body, a grasp part, and a control component mounted in the grasp part and used for driving traction fibers to move. The perfusion electrophysiologic conduit is characterized in that the spirally wound electrode is a hollow electrode tube, a plurality of through holes are formed in the surface of the electrode tube, and the inside of the electrode tube is communicated with an infusion tube for conveying a perfusate; the control component comprises a rotary component whose rotating shaft is perpendicular to the length direction of the grasp part, and a first fixing part and a second fixing part used for fixing the traction fibers respectively are arranged on the rotary component and distributed on two sides of the center line of the grasp part. The electrophysiologic electrode capable of spraying a liquid can improve the perfusion effect effectively, and can improve the safety and the reliability of an ablation catheter; and the device is flexible to control, and can control the conduit body to reach different lesion locations accurately.

The invention discloses an in-vitro heart constant pressure/constant flow perfusion experiment device for cardiological mammals. The device comprises a fixing and supporting device, a perfusion device and a monitoring device. The fixing and supporting device comprises a bottom platform. A fixed supporting plate and a movable supporting plate are arranged at the rear side of the bottom platform. A hydraulic lifter is arranged below the movable supporting plate. The perfusion device comprises a baffling perfusion column, and the baffling perfusion column is fixedly arranged on the front face of the movable supporting plate. The bottom of the baffling perfusion column is connected with the heart, and a conical incubator and a blood filter are sequentially arranged below the heat. The right side of the blood filter is connected with an oxygenator, and the oxygenator is connected with a gas storage bottle, a liquid storage bottle and a peristaltic pump through a gas conveying pipe, a liquid replenishing pipe and a liquid conveying pipe, respectively. The tail end of the liquid conveying pipe is connected with a liquid inlet of the baffling perfusion column. The baffling perfusion column and the conical incubator are connected with a temperature controller by means of a manifold. The monitoring device collects and records the test data through an electrode, a balloon, a heart sound transducer and a pressure transducer.

The invention discloses a cardiac surgery myocardial cardiopelgia synchronous perfusion and pressure monitoring and adjusting device. The device comprises two perfusion branches, a liquid supply pipe,a shunt detection meter and a second infusion pipe, the two perfusion branches are rotationally arranged on the shunt detection meter; an elastic telescopic pipe and a dial plate provided with a pointer and scales are arranged in the shunting detection meter; a first infusion pipe is arranged in the infusion head on each infusion branch, one end of the second infusion pipe is in butt joint with the first infusion tube, the other end of the second infusion pipe is connected to a third infusion pipe in the shunt detection meter, one end of the elastic telescopic pipe is connected to the secondinfusion pipe, and the other end of the elastic telescopic pipe is closed and extends to the free end of the pointer. The device is simple in structure and convenient to use, synchronous and uniform perfusion of coronary artery on two sides can be realized, coronary artery blockage can be detected in the perfusion process, the device is self-inspected to find out whether a pipeline of the device is blocked or not, whether the device performs uniform perfusion or not is effectively found out in time, and insufficient perfusion and excess perfusion are avoided.

The invention relates to a method for processing a two-in-one 4B lead core, which is characterized by comprising the following steps: 1) taking first level talcum powder with 2000 meshes, and taking moisture clay as main materials; 2)placing 20-30kg of cosmetic-level white oil, 35-50kg of water-soluble wax, 25-30kg of polymerization wax, 10-18kg of pigment, 5-10kg of titanium dioxide and 4-6kg of peach gum in 100kg of main materials; 3)uniformly stirring the materials in the step 2); 4)rolling the kneaded materials in a rolling machine for 3 hours; and 5)placing the rolled materials in a perfusion machine for storing for 72 hours, cooling the materials by cold water, and hardening the materials for standby. The method for processing the two-in-one 4B lead core has the active effect that the method is improved based on current processes while the mechanical equipment is not improved, so that the method can be directly used for the current production process, and the method is easy to operate.

The invention relates to the technical field of medical instruments, and discloses a bending-adjustable sheath pipe. The bending-adjustable sheath pipe comprises: a supporting pipe section and a bending adjusting pipe section which are sequentially connected from a near end to a far end. the supporting pipe section and the bending adjusting pipe section are provided with a plurality of perfusion channels penetrating from a near end of the supporting pipe section to a far end of the bending adjusting pipe section, and near ends of the perfusion channels are open, and far ends are closed; at least part of the bend adjusting pipe section has an elastic deformation capacity, and a bending form of the bend adjusting pipe section can be controlled by adjusting a fluid pressure in the perfusion channels. According to the embodiment of the invention, the bending form of the bending pipe section is controlled through the fluid pressure in the perfusion channels, controllability of the bending form is improved, meanwhile, the bending-adjustable sheath pipe has a simple structure, is easy to operate, and does not occupy perfusion channel of sheath pipe.

The invention discloses a food sterilization tank, particularly a sterilization tank which can reduce temperature gradually after high-temperature sterilization. A temperature-changing sterilization tank comprises stirring slurry contained in the tank body and a spiral jacket into which cold water is introduced; a group of through holes communicated with the inner space of the tank body is formed on the upper surface wall of the spiral jacket; the diameter of an outflow tube is equal to the sum of the apertures of the through holes. In the prior art, the temperature of the raw material is changed acutely because of cold water perfusion, the defects of nutrient loosing and taste changing is easy to be generated. The invention discloses a sterilization tank which is capable of realizing continuous and stable temperature decreasing effect after high-temperature sterilization.