According to some embodiments, a microdermabrasion device for treating skin comprises a handpiece assembly having a distal end and a proximal end. The handpiece assembly includes at least one delivery conduit and at least one waste conduit. The microdermabrasion device additionally comprises a tip configured to be positioned along the distal end of the handpiece assembly, wherein the tip is adapted to contact skin surface. In several embodiments, the tip comprises a lip, a first opening in fluid communication with the fluid delivery conduit and a second opening in fluid communication with the waste conduit. In one embodiment, the device includes one or more abrasive elements positioned along a distal end of the tip, wherein the abrasive elements are configured to selectively remove skin as the tip is moved relative to a skin surface. In some embodiments, the delivery conduit is configured to selectively deliver at least one time-release material to the skin surface being treated.

Devices, systems and methods for treating the skin using time-release substances

The invention provides a variety of surgical instruments for forming a liquid jet, which are useful for performing a wide variety of surgical procedures. In some embodiments, the invention provides surgical liquid jet instruments having a pressure lumen and an evacuation lumen, where the pressure lumen includes at least one nozzle for forming a liquid jet and where the evacuation lumen includes a jet-receiving opening for receiving the liquid jet when the instrument is in operation. In some embodiments, the pressure lumen and the evacuation lumen of the surgical liquid jet instruments are constructed and positionable relative to each other so that the liquid comprising the liquid jet, and any tissue or material entrained by the liquid jet can be evacuated through the evacuation lumen without the need for an external source of suction. The invention also provides a variety of surgical liquid jet instruments that are constructed and configured specifically for use in a surrounding liquid environment or a surrounding gaseous environment. The invention also provides a variety of surgical liquid jet instruments that are rotatably deployable from an undeployed position, for insertion into the body of a patient, to a deployed position, in which there is a separation distance between the liquid jet nozzle and the jet-receiving opening that defines a liquid jet path length. The invention also provides surgical methods utilizing the inventive surgical liquid jet instruments, and methods for forming components of the surgical liquid jet instruments.

Fluid jet surgical instruments

The present invention provides a series of devices for surgical procedures utilizing rotatable components for grinding, cutting, ablating, polishing, drilling, screwing, etc., tissues of the body of a patient. The invention includes, a series of surgical instruments (100) including rotatable shafts (124), and surgical components (122) drivable by the shafts (124) that can be utilized for contact with tissue in a surgical operating field. Some preferred surgical instruments provided by the invention utilize a liquid jet-driven rotor mechanism (454) for driving rotation of the rotatable shaft (124). Some preferred instruments provided by the invention include both a liquid jet-driven rotor mechanism (454) and a nozzle (192) at the distal end of the instrument for forming a liquid cutting jet for cutting or ablating tissue of a patient. Such instruments can include a liquid flow directing valve (180) therein that includes a pressure-tight sealing component (556) comprising a sealing element that is slidably moveable within a cylinder (552) of the valve (180). The invention provides methods for utilizing the surgical instruments in surgical procedures involving both cutting or ablating tissue of a patient with a liquid cutting jet and grinding, cutting, or ablating tissue with a rotating surface of a surgical instrument.

Liquid jet-powered surgical instruments

Surgical instruments are disclosed that utilize high-pressure liquid jets to perform a variety of useful functions. In certain embodiments, surgical instruments are described incorporating one or more liquid jets utilized to contact tissue excised by a non-liquid jet tissue-cutting component of the surgical instrument for the purpose of further cutting the excised tissue and/or fragmenting and/or disaggregating at least a portion of the excised tissue into a plurality of small particles and/or facilitating or assisting removal of excised tissue from a surgical site without the need to remove the instrument from the surgical site. In certain embodiments, a liquid jet of a surgical instrument can be utilized for the purpose of excising tissue of a patient immobilized and/or manipulated by the surgical instrument. Also described are surgical devices of the type characterized by curettes, rongeurs, bone punches, bone cutting forceps, morcellators, surgical micrograspers, with functionality and performance supplemented by the integration of a liquid jet.

Surgical devices incorporating liquid jet assisted tissue manipulation and methods for their use

A hand-held surgical apparatus with supporting equipment comprising a mechanism for producing a pressurized jet of fluid which is sufficiently energetic to fragment diseased human and animal tissue without damaging adjacent healthy tissue Preferably the apparatus includes a jet of fluid which impinges obliquely onto the operative area such that diseased tissue underneath overlying healthy tissue may be fragmented, especially finger-like extensions from tumorous growths of the skin The jet rotated about a generally vertical axis such that the points of impact of the water from the jet upon the operative area describes circular patterns, thereby effectively and quickly distributing fragmenting energy over a wide operative area A supporting vacuuming apparatus for aspirating effluent or expended fluid and fragmented tissue from the operative site A surgical procedure for removing tumorous growths at the cutaneous surface includes the steps of impinging a growth on the skin with a jet of pressurized fluid using the apparatus

Surgical liquid lance apparatus

A surgical nozzle apparatus used for removing an undesired tissue with a jet of pressurized fluid. A handpiece including a fluid injecting nozzle piece and a valve assembly capable of cutting off the supply of the pressurized fluid to the nozzle piece, further includes a suction nozzle opening at a position downstream of the nozzle piece. The suction nozzle is connected to external suction means so that the waste fluid and the separated tissue at a surgically treated part are simultaneously sucked and discharged during the operation.

Eda Kensaku

Papers

Surgical nozzle apparatus

Method and device for washing inside of can

Device of washing inner surface of tank by high pressure water

Sea algae bed renewal apparatus