摘要:
The disclosed solid waste pump is a chopper pump, and preferably a chopper pump having a small rated motor and a semi-open impeller design. Particularly, a chopper pump having an impeller, at least one pump-out vane, an end plate, and a back plate including at least one cutting rib is disclosed. The impeller includes a back shroud and cutting vanes sharpened on a first edge extending opposite the back shroud and fixed on a first surface of the back shroud. The at least one pump-out vane is preferably fixed to a second surface of the back shroud opposite the first surface, while the end plate includes a surface adjacent to and facing the first edge of the cutting vanes and at least one internal cutting rib fixed to the end plate surface for shearing operation in combination with the sharpened edge of the cutting vanes of the impeller. Finally, the back plate has a surface adjacent to and facing the at least one pump-out vane and at least one cutting rib attached to the back plate surface for shearing operation in combination with the at least one pump-out vane.
摘要:
Devices and methods to cool a target tissue region inside the body are described. Fluid cooled below normal body temperature and blood at a normal body temperature are provided to the tissue region in proportions to cool the tissue region. A system for controlling the temperature of the target tissue region is disclosed. The system includes a catheter and a control system that controls the amount of cool fluid and blood provided to the tissue region. A catheter for providing cool fluid to the tissue region is also provided. The catheter includes a temperature sensor that extends to a location distal to the distal end of the catheter to sense the temperature of the tissue region.
摘要:
Methods, apparatus, and systems for altering the configuration of a heart valve. Methods, apparatus, and systems include the use of a cord delivered into the heart by a delivery catheter that can be manipulated by a receiving catheter so as to improve the heart valve function.
摘要:
Devices and methods to cool a target tissue region inside the body are described. Fluid cooled below normal body temperature and blood at a normal body temperature are provided to the tissue region in proportions to cool the tissue region. A system for controlling the temperature of the target tissue region is disclosed. The system includes a catheter and a control system that controls the amount of cool fluid and blood provided to the tissue region. A catheter for providing cool fluid to the tissue region is also provided. The catheter includes a temperature sensor that extends to a location distal to the distal end of the catheter to sense the temperature of the tissue region.
摘要:
Therapeutic agent delivery devices and methods for delivering a therapeutic agent to a target location as well as methods for determining the location of a lesion on a vessel wall are disclosed. Various embodiments disclose an expandable member comprising a drug delivery matrix for selectively delivering a therapeutic agent to a lesion on a vessel wall. The drug delivery matrix may comprise one or more sensors and an electroactive polymer for releasing the therapeutic agent. Other embodiments disclose an expandable member comprising a plurality of radially-expanding flexible walls forming a plurality of channels for selectively delivering therapeutic agent to a target area adjacent one or more of the channels. Detecting a lesion may comprise using a plurality of Hall effect sensors disposed on a distal end of a catheter.
摘要:
A device for occluding a target body lumen, comprises a wire structure defining a wire structure lumen extending therethrough and movable between a reduced diameter insertion configuration and an expanded diameter deployed configuration and a basket structure extending across the wire structure lumen and including therein a cell growth promoting agent to promote cell growth across the wire structure lumen to occlude the target body lumen.
摘要:
The SubZip is a waterproof submersible zipper with Vacuum Fit Technology. The Submersible Zipper is designed for watersports apparel and gear [10] and other water related applications. The SubZip's uniquely molded construction and engineered material make it strongly suited for hardcore gear applications, while it's sleek, flexible profile and feather weight allow it to blend unnoticeably into finer apparel applications. The SubZip [20] will be available in a standard black seven inch zipper as well as custom made colors and lengths. The SubZip waterproof submersible zipper will also be available in custom engineered materials. The standard zipper has a profile of less than a quarter inch and weighs less than an ounce.
摘要:
A catheter for placement of an in situ implant is provided. This catheter may include a first elongate shaft having a proximal end and a distal end, a second elongate shaft having a proximal end and a distal end, a first sharpened distal tip disposed at the distal end of the first shaft and a second sharpened distal tip disposed at the distal end of the second shaft. The first shaft and the second shaft may also be secured to one another at the distal end of the first shaft according to the invention. Still further, according to other teachings, the first sharpened distal tip may extend beyond the second sharpened distal tip in a catheter that practices the invention.
摘要:
A device for occluding a target body lumen, comprises a wire structure defining a wire structure lumen extending therethrough and movable between a reduced diameter insertion configuration and an expanded diameter deployed configuration and a basket structure extending across the wire structure lumen and including therein a cell growth promoting agent to promote cell growth across the wire structure lumen to occlude the target body lumen.
摘要:
In one embodiment, the present disclosure provides a biodegradable, self-powered medical device for preventing or reducing reperfusion injury, comprising a galvanic cell, the galvanic cell comprising: a first biodegradable electrode member; and a second biodegradable electrode member comprising a biodegradable conductive polymer and an electrode-releasable therapeutic agent, wherein the galvanic cell generates an electric force sufficient to cause the electrode-releasable therapeutic agent to be released from the biodegradable conductive polymer and elute to a target location. The device may further include a reservoir material containing a burst-release therapeutic agent.