| Patent application number | Description | Published |
|---|
| 20110185580 | LARGE DIAMETER NOTCHED BLADE AND BLADE HOUSING FOR POWER OPERATED ROTARY KNIFE - A power operated rotary knife having a large diameter, annular rotary knife blade and interfitting blade housing wherein the rotary knife blade includes notched bearing race providing for an enhanced or enlarged area of bearing contact between the blade bearing race and the corresponding blade housing bearing structure. The enhanced area of bearing contact is offset radially inwardly of and axially from a radial outer surface of a drive gear region of the blade thereby reducing wear on the radial outer surface of the blade drive gear region. | 08-04-2011 |
| 20110247220 | POWER OPERATED ROTARY KNIFE WITH DISPOSABLE BLADE SUPPORT ASSEMBLY - A power operated rotary knife having a reusable handle assembly and disposable blade support assembly including a head portion and a blade support portion extending from the head portion, wherein upon completion of a tissue debriding operation on a donor, the used blade support assembly is removed from the handle assembly and disposed of, the handle assembly is autoclaved/sterilized and a new, sterilized blade support assembly is affixed to the handle assembly prior to a subsequent use. The knife includes an attachment assembly to releasably attach the disposable blade support assembly to the handle assembly and a retainer structure positioned in an annular groove formed in a bottom surface of the blade housing portion, the retainer structure bearing against an annular rotary knife blade and the blade housing portion to permanently retain an annular body section of the blade in the annular groove. | 10-13-2011 |
| 20120079726 | LOW FRICTION ROTARY KNIFE - A power operated knife comprises a blade supporting structure supporting an annular blade for rotation about a central axis. The blade and blade supporting structure are engagable along bearing contact locations that are spaced apart in a direction parallel to the axis so that the blade is stabilized both radially and axially as the knife operates. The blade supporting structure comprises a split blade housing member that is radially expandable and contractible to receive the blade. The split blade housing member and blade engage along relatively short lines of bearing contact that serve to minimize friction and blade heating when the knife operates. The bearing locations are spaced apart both circumferentially around the blade perimeter and in the direction of the axis so that the blade position is stabilized during operation of the knife. | 04-05-2012 |
| 20130025134 | POWER OPERATED ROTARY KNIFE - A rolling bearing strip for a power operated rotary knife providing bearing support for rotation of a rotary knife blade with respect to a blade housing. The rolling bearing strip includes: a plurality of rolling bearings disposed in spaced apart relation; and a flexible separator cage for positioning the plurality of spaced apart rolling bearings, the flexible separator cage including interlocking first and second ends, the first end of the separator cage including a wall defining a projecting member and the second end of the separator cage including a wall defining a receiving member, the first end projecting member and the second end receiving member being in opposed facing relationship and the first end projecting member extending into the second end receiving member to secure the first end to the second end and form an annular, continuous rolling bearing ring. | 01-31-2013 |
| 20130025136 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 01-31-2013 |
| 20130025137 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 01-31-2013 |
| 20130025138 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 01-31-2013 |
| 20130025139 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 01-31-2013 |
| 20130174424 | FLEX SHAFT - TOOL CONNECTION FOR POWER OPERATED ROTARY KNIFE - A flexible shaft drive transmission coupled between a drive motor and a gear train of a power operated tool. The flexible shaft drive transmission includes: an outer casing having a bushing positioned at a tool end of the casing, the bushing defining a longitudinal central opening; lubricant disposed within the outer casing; and an elongated drive transmitting shaft assembly rotatable within the outer casing including a flexible drive transmitting and a coupler fitting affixed to the tool end of the drive transmitting shaft, the coupler fitting including a cylindrical body and an enlarged head extending distally from the cylindrical body, the cylindrical body fitting within the longitudinal central opening of the bushing and the enlarged head having a diameter greater than a diameter of the longitudinal central opening of the bushing. The enlarged head defining a square drive aligned with a central longitudinal axis of the drive transmitting shaft assembly. | 07-11-2013 |
| 20130178296 | FLEX SHAFT - DRIVE MOTOR CONNECTION FOR POWER OPERATED ROTARY KNIFE - A flexible shaft drive transmission for transmitting rotational power between a drive motor and a gear train of a power operated tool. The flexible shaft drive transmission includes an elongated drive shaft assembly including a rotatable drive transmitting shaft assembly extending through an outer casing. The shaft drive transmission includes a motor end coupling affixed to one end the outer casing and adapted to be releasably connected to a mating coupling of the drive motor. The motor end coupling includes a coupling body having an outer surface tapered region tapering from a larger diameter to a smaller diameter at a distal end of the tapered region to facilitate insertion and proper alignment with the drive motor coupling. The drive transmitting shaft assembly includes a driven fitting having a plurality of drive faces surrounding an axially extending locating member for engagement with a mating drive fitting of the drive motor. | 07-11-2013 |
| 20130185944 | POWER OPERATED ROTARY KNIFE - A two-part rotary knife blade ( | 07-25-2013 |
| 20140074118 | POWER OPERATED DERMATOME WITH ROTARY KNIFE BLADE - A head assembly ( | 03-13-2014 |
| 20140074119 | POWER OPERATED DEBRIDEMENT TOOL WITH DISK KNIFE BLADE - A hand-held, power operated debridement tool ( | 03-13-2014 |
| 20140074120 | Power Operated Dermatome WIth Shielded Rotary Knife Blade - A combination ( | 03-13-2014 |
| 20140144029 | LOW FRICTION ROTARY KNIFE - A power operated knife comprises a blade supporting structure supporting an annular blade for rotation about a central axis. The blade and blade supporting structure are engagable along bearing contact locations that are spaced apart in a direction parallel to the axis so that the blade is stabilised both radially and axially as the knife operates. The blade supporting structure comprises a split blade housing member that is radially expandible and contractible to receive the blade. The split blade housing member and blade engage along relatively short lines of bearing contact that serve to minimize friction and blade heating when the knife operates. The bearing locations are spaced apart both circumferentially around the blade perimeter and in the direction of the axis so that the blade position is stabilized during operation of the knifes. | 05-29-2014 |
| 20140245617 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 09-04-2014 |
| 20140259698 | POWER OPERATED ROTARY KNIFE - A rolling bearing strip for a power operated rotary knife providing bearing support for rotation of a rotary knife blade with respect to a blade housing. The rolling bearing strip includes: a plurality of rolling bearings disposed in spaced apart relation; and a flexible separator cage for positioning the plurality of spaced apart rolling bearings, the flexible separator cage including interlocking first and second ends, the first end of the separator cage including a wall defining a projecting member and the second end of the separator cage including a wall defining a receiving member, the first end projecting member and the second end receiving member being in opposed facing relationship and the first end projecting member extending into the second end receiving member to secure the first end to the second end and form an annular, continuous rolling bearing ring. | 09-18-2014 |
| 20140283393 | POWER OPERATED ROTARY KNIFE - A two-part rotary knife blade ( | 09-25-2014 |
| 20140298662 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 10-09-2014 |
