Stryker Corporation

Simon S Hui

Benjamin H Feingold

Vasudev Nambakam

Reid S Cover

Brannon P Wells

Todd J Radgowski

Benjamin Hyman Feingold

A method of generating illumination by a light source for transmission to an endoscope includes emitting light from a plurality of light emitters of the light source, each light emitter emitting light having a different wavelength range from other light emitters of the plurality of light emitters; combining the light emitted from the plurality of light emitters into a combined light; receiving and condensing the combined light by a focusing optic to create a condensed light; and receiving and orienting the condensed light in a straight path direction by a collimating optic.

Endoscopic LED light source having a feedback control system

A method for providing light to an endoscope includes emitting light from a plurality of light emitting diodes, filtering the light with a plurality of dichroic filter elements, collimating and mixing light received from the dichroic filter elements into a combined light, sensing the combined light at a color sensor and determining a sensed color balance of the combined light, comparing the sensed color balance with a predetermined color balance, and varying at least one power signal to control a light intensity output by at least one of the plurality of light emitting diodes so that the sensed color balance corresponds to the predetermined color balance.

An external endoscope light source system includes light emitting diodes for providing a light output to an endoscope. The light is provided to a fiber optic cable for transmission to the endoscope.

Endoscopic LED light source

An external endoscope light source system includes light emitting diodes for providing a light output to an endoscope. The light is provided to a fiber optic cable for transmission to the endoscope. A fiber optic receives a portion of the light output and provides the output to a color sensor for sensing color values. The color values are provided to a controller that adjusts power to the various LEDs to provide a white light output. Instead of a color sensor in the light source, the light source can receive a white balance signal from a video camera provided for an endoscope. The white balance signal varies intensity of light output from each of the LEDs to obtain a white light output. The camera also provides shutter speed of a camera image sensor to the light source. The shutter speed is used to pulse or modulate the light output only when the shutter of the camera is open. By modulating the light output by the light source, the amount of heat generated by the light source is minimized.

This invention relates to a surgical irrigation system having an improved reusable, motorized console and a separable/attachable irrigation pump cassette, including, at least in one embodiment improved mechanical and electrical inner-connection structure therebetween, and at least in one embodiment improved pump priming structure and methods.

Surgical irrigation system

An electrosurgical suction/irrigation instrument includes a shaft hub, an electrically conductive member, and a sheath. The conductive member has a proximal end mounted to the shaft hub and a distal end including a conductive operating tip. The sheath covers the conductive member so that the operating tip is covered when the sheath is in an extended position and exposed when the sheath is in a retracted position. The sheath hub is coupled to the sheath and is movably engaged with the shaft hub. The surgical instrument further includes a locking mechanism to lock the sheath in the retracted position, and a bias element to bias the sheath toward the extended position.

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San Jose, CA, United States of America

Simon S Hui