Abstract: An endoscope sheath is provided comprising a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube is configured to receive at least a portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, wherein the sheath tube can rotate about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter.

Abstract: A microdebrider comprising: (a) a handpiece; (b) an interchangeable tip connected to the handpiece; (c) an outer tune rotatably connected to the interchangeable tip, the outer tube including an outer tube window; (d) an inner tube extending at least partially through the outer tube, the inner tube including an inner tube window; (e) a lock selector connected to the inner tube; and (f) a bias device; wherein the bias device is movable, and upon movement of the bias device into contact with the lock selector the inner tube is immobilized so that the inner tube window is aligned with the outer tube window, aligned with a wall of the outer tube, or in a condition therebetween.

Abstract: An endoscope sheath is provided comprising a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube is configured to receive at least a portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, wherein the sheath tube can rotate about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter.

Abstract: An endoscope sheath is provided comprising a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube is configured to receive at least a portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, wherein the sheath tube can rotate about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter.

Abstract: A surgical instrument has a hollow tubular member, and a pressurization unit that has an outer valve portion, a pressurization device having a movable part configured to generate pressurized fluid when the movable part is moved, and an inner valve portion. The inner valve portion includes a first flow passage that is configured to fluidically connect a first port and a second port of the outer valve portion to each other when the inner valve portion is in a first position, and a second flow passage that is configured between the inner valve portion and the outer valve portion to fluidically connect the first port and a third port when the inner valve portion is in a second position. A sealing system fluidically isolates the second port and the third port from each other at any position of the inner valve portion.

Abstract: An endoscope sheath is provided comprising a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube is configured to receive at least a portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, wherein the sheath tube can rotate about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter.

Abstract: An endoscope sheath is provided comprising a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube is configured to receive at least a portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, wherein the sheath tube can rotate about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter.

Abstract: A microdebrider comprising: (a) a handpiece; (b) an interchangeable tip connected to the handpiece; (c) an outer tune rotatably connected to the interchangeable tip. the outer tube including an outer tube window; (d) an inner tube extending at least partially through the outer tube, the inner tube including an inner tube window; (e) a lock selector connected to the inner tube; and (f) a bias device; wherein the bias device is movable, and upon movement of the bias device into contact with the lock selector the inner tube is immobilized so that the inner tube window is aligned with the outer tube window, aligned with a wall of the outer tube, or in a condition therebetween.

Abstract: A microdebrider comprising: (a) a handpiece; (b) an interchangeable tip connected to the handpiece; (c) an outer tube rotatably connected to the interchangeable tip, the outer tube including an outer tube window; (d) an inner tube extending at least partially through the outer tube, the inner tube including an inner tube window; (e) a lock selector connected to the inner tube; and (f) a bias device; wherein the bias device is movable, and upon movement of the bias device into contact with the lock selector the inner tube is immobilized so that the inner tube window is aligned with the outer tube window, aligned with a wall of the outer tube, or in a condition therebetween.

Abstract: An endoscope sheath is provided comprising a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube is configured to receive at least a portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, wherein the sheath tube can rotate about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter.

Abstract: A surgical instrument has a hollow tubular member, and a pressurization unit that has an outer valve portion, a pressurization device having a movable part configured to generate pressurized fluid when the movable part is moved, and an inner valve portion. The inner valve portion includes a first flow passage that is configured to fluidically connect a first port and a second port of the outer valve portion to each other when the inner valve portion is in a first position, and a second flow passage that is configured between the inner valve portion and the outer valve portion to fluidically connect the first port and a third port when the inner valve portion is in a second position. A sealing system fluidically isolates the second port and the third port from each other at any position of the inner valve portion.

Abstract: A surgical instrument having a first cutting blade and a second cutting blade that rotates within the first cutting blade during a cutting operation to cause cutting windows of the cutting blades to remove tissue from a patient also includes a suction passage forming member disposed over a suction aperture of the first cutting blade. The suction passage forming member includes an inlet, an outlet and a passage between the inlet and the outlet, the outlet communicating with the suction aperture. The surgical instrument can be used as a suction tool by applying a vacuum through an internal bore of the second cutting blade while the second cutting blade is stopped from rotating with the cutting windows of the first and second cutting blades misaligned with each other so that the vacuum is applied through the suction aperture and the suction passage forming member.

Abstract: A surgical instrument includes first and second cutting blades, each including a tubular body having proximal and distal ends, with a cutting window disposed at a side of each cutting blade near its distal end. The second cutting blade rotates within the first cutting blade to cut tissue while a vacuum is applied through an internal bore of the second cutting blade. The distal end of each of the cutting blades includes a suction aperture. An area of the first cutting blade suction aperture is smaller than an area of the second cutting blade suction aperture. The instrument is used as a suction tool by applying the vacuum through the internal bore of the second cutting blade while the second cutting blade is stopped from rotating with the cutting windows of the first and second cutting blades misaligned with each other to apply the vacuum through the suction apertures.

Abstract: A surgical instrument has a hollow tubular member, and a pressurization unit that has an outer valve portion, a pressurization device having a movable part configured to generate pressurized fluid when the movable part is moved, and an inner valve portion. The inner valve portion includes a first flow passage that is configured to connect a first port and a second port of the outer valve portion to each other when the inner valve portion is in a first position, and a second flow passage that is configured to connect the first port of the outer valve portion to the pressurization device when the inner valve portion is in a second position. Pressurized fluid from the pressurization device causes the inner valve portion to move from the first position to the second position, thereby providing positive pressure to the hollow tubular member.

Abstract: A surgical instrument having a first cutting blade and a second cutting blade that rotates within the first cutting blade during a cutting operation to cause cutting windows of the cutting blades to remove tissue from a patient also includes a suction passage forming member disposed over a suction aperture of the first cutting blade. The suction passage forming member includes an inlet, an outlet and a passage between the inlet and the outlet, the outlet communicating with the suction aperture, and the inlet facing distally. The surgical instrument can be used as a suction tool by applying a vacuum through an internal bore of the second cutting blade while the second cutting blade is stopped from rotating with the cutting windows of the first and second cutting blades misaligned with each other so that the vacuum is applied through the suction aperture and the suction passage forming member.

Abstract: A surgical instrument includes a main unit and a suction conduit. The main unit includes at least one tubular body having a distal end, a proximal end, and an inlet disposed near the distal end. The suction conduit is slidably disposed over the main unit, and is slidably movable along the main unit between a retracted position, at which the suction conduit does not cover the inlet of the main unit, and an extended position at which the suction conduit covers the inlet of the main unit and a suction inlet of the suction conduit is placed in fluid-communication with the main unit inlet. The surgical instrument can be used as a suction tool by placing the suction conduit in the extended position and applying a vacuum through the inlet of the main unit and the suction inlet.

Abstract: A surgical instrument having a first cutting blade and a second cutting blade that rotates within the first cutting blade during a cutting operation to cause cutting windows of the cutting blades to remove tissue from a patient also includes a suction passage forming member disposed over a suction aperture of the first cutting blade. The suction passage forming member includes an inlet, an outlet and a passage between the inlet and the outlet, the outlet communicating with the suction aperture, and the inlet facing distally. The surgical instrument can be used as a suction tool by applying a vacuum through an internal bore of the second cutting blade while the second cutting blade is stopped from rotating with the cutting windows of the first and second cutting blades misaligned with each other so that the vacuum is applied through the suction aperture and the suction passage forming member.

Abstract: A surgical instrument includes first and second cutting blades, each including a tubular body having a proximal end and a distal end, with a cutting window disposed at a side of each cutting blade near its distal end. The second cutting blade rotates inside of the first cutting blade to cut tissue while a vacuum is applied through an internal bore of the second cutting blade. The distal end of each of the cutting blades includes a suction aperture through which a longitudinal axis of the cutting blades extends. The surgical instrument can be used as a suction tool in which the vacuum is applied through the suction apertures by applying the vacuum through the internal bore of the second cutting blade while the second cutting blade is stopped from rotating with the cutting windows of the first and second cutting blades misaligned with each other.