46 results about "Lead extraction" patented technology

Snaring systems and methods involve engaging objects such as pacemaker pacing leads within a patient. Physicians can use snaring systems having loops, tags, and roller mechanisms to remove a pacing leads from a patient. For example, snaring systems can be inserted through a jugular access site, engaged with a pacemaker pacing lead, and withdrawn through the jugular access site so as to remove a portion of the pacing lead. Lead extraction techniques can be employed to further dislodge the pacing lead from the patient.

A method for extracting a lead from a patient comprising: providing a lead removal stylet; inserting the stylet into the lead; locking the stylet to a position inside the lead; and vibrating the stylet with tissue disrupting vibration to cause the lead to vibrate and to disconnect from binding tissue.

The invention relates to a process for extracting tea saponin from tea seed cakes or meal after oil frying by applying an industrial production device. The process comprises the following steps: crushing the tea seed cakes or the meal (leading the particle size to be 1-3mm), then sending into a steaming and stir-frying cauldron, drying (preventing the water content from exceeding 7%), then leading the material to enter into a material storage cylinder, using a screw conveyor to send the material into a rotocel extractor, and adding a solvent for extraction; carrying out residue-liquid separation (the meal residue can be used as a feed or a fertilizer) after double extraction, leading extraction solution to enter into a long pipe evaporator, removing part of water by double evaporation, and recycling the solvent (which can be recycled); and concentrating the extraction solution via a vacuum concentration tank, then crystallizing and drying, and obtaining a fine saponin finished productfor packaging and leaving a factory. A product produced by the process contains 81.5% of active matters, and the pH value is 5.9. Compared with other methods, the process has the advantages of high product purity, light color, high production rate (14%), energy conservation, low consumption, no pollution and environmental protection, and is easy for operation and the like.

An apparatus configured to control a lead extraction tool for assisting in removal of an implanted lead. The apparatus comprises at least one valve configured to control fluid flow to the lead extraction tool. When the at least one valve is open, the at least one valve is configured to allow fluid stored in the apparatus to flow thereby applying, when the apparatus is fluidly coupled to the lead extraction tool, fluid pressure to at least one component of the lead extraction tool. The apparatus further comprises at least one controller configured to control opening and / or closing of the at least one valve.