초록 ▼

A filter assembly is described that includes a substantially recyclable filter cartridge inside a pressure vessel. The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bearing neck that is adapted to withstand high pressures preferably in the range

A filter assembly is described that includes a substantially recyclable filter cartridge inside a pressure vessel. The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bearing neck that is adapted to withstand high pressures preferably in the range of about 500 psi from the inside. The walls of the filter cartridge that are incapable of withstanding significant internal pressure are surrounded on the outside by a pressure vessel. The invented cartridge need not seal to the pressure vessel, because the cartridge neck protrudes outside of the pressure vessel to seal directly to a filter head. The cartridge preferably includes a quick-disassembly mechanism for allowing quick and non-destructive access to the internal components and media of the cartridge.

대표청구항 ▼

A filter assembly is described that includes a substantially recyclable filter cartridge inside a pressure vessel. The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bearing neck that is adapted to withstand high pressures preferably in the range

A filter assembly is described that includes a substantially recyclable filter cartridge inside a pressure vessel. The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bearing neck that is adapted to withstand high pressures preferably in the range of about 500 psi from the inside. The walls of the filter cartridge that are incapable of withstanding significant internal pressure are surrounded on the outside by a pressure vessel. The invented cartridge need not seal to the pressure vessel, because the cartridge neck protrudes outside of the pressure vessel to seal directly to a filter head. The cartridge preferably includes a quick-disassembly mechanism for allowing quick and non-destructive access to the internal components and media of the cartridge. ween the elongate shaft and the coil. 15. The catheter of claim 11, wherein the elongate shaft comprises a wire including a nickel titanium alloy. 16. The catheter of claim 11, wherein the coil comprises a wire including a jacket disposed thereabout. 17. The catheter of claim 11, wherein the coil comprises a wire including a jacket disposed thereabout; and the jacket comprises polytetrafluoroethylene. 18. A PMR catheter, comprising: a shaft assembly including a lumen defined by a coil, an elongate shaft disposed within the coil lumen, and a sheath disposed about the coil; the elongate shaft having a proximal portion, a distal portion, and a lumen extending through at least the distal portion thereof; the lumen of the elongate shaft being in fluid communication with the lumen of shaft assembly; the elongate shaft including a curved portion; an electrode disposed at the distal portion of the elongate shaft; an electrode lumen within the electrode that is in fluid communication with the lumen of the elongate shaft; the coil having a distal end fixed to the electrode and the distal portion of the elongate shaft; a hub disposed at the proximal portion of the elongate shaft, the hub defining a port lumen in fluid communication with the lumen of the shaft assembly.