Back to results
US 5,685,824 AGranted
Prostascope with a bridge
AssigneeAstem Tech Company, Limited
InventorKazuyuki Takei
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAstem Tech Company, Limited
InventorKazuyuki Takei
Estimating the term…
A prostascope with a bridge includes a guide member which has a guide surface for a laser beam emitting end of a fiber cable at the bottom thereof and which is attached to the tip of the bridge, a reflector which is formed with a slant reflecting surface having a predetermined angle of reflection and which is detachably attached to a mounting portion of the guide member such that the reflector is prevented from rotating relative to the guide member and that a threaded end of the tip of the bride penetrates the reflector, and a cap nut which is removably screwed onto the threaded end of the bridge. The laser beam emitting end of the fiber cable is guided along the guide surface of the guide member and faces the reflecting surface of the reflector, and the tip of a telescope is positioned at a location slightly retracted from the reflection surface of the reflector with the laser beam emitting end of the fiber cable located therebetween so as to visually recognize the entire affected part irradiated with a laser beam emitted from the laser beam emitting end of the fiber cable. This structure allows a surgeon to easily replace the reflector.
A prostascope system comprising a prostascope having an outer tube assembly having a distal end with an operational opening and an elongated telescopic tube, a bridge, said telescopic tube being removably disposed on said bridge and having a distal end juxtaposed to said operational opening in said outer tube assembly, said bridge being removably disposed in said outer tube assembly, said bridge comprising an operational tube having a distal end portion disposed at said operational opening in said outer tube assembly, a fiber cable for transmitting a laser beam disposed in said operational tube, said fiber cable having a laser beam emitting end disposed at said operational opening in said outer tube assembly, a reflector, threaded means detachably mounting said reflector on said distal end portion of said operational tube, said reflector having a reflecting surface, a guide member means mounted on said distal end portion of said operational tube, said reflecting surface of said reflector means being spaced from said distal end of said telescopic tube, said guide member means being positioned to be engaged by said fiber cable to guide said laser beam emitting end of said fiber cable to a position facing said reflecting surface and to a position between said reflecting surface and said distal end of said telescopic tube to thereby enable visual recognition via said telescopic tube of the affected part irradiated by the laser beam emitted from said laser beam emitting end of said fiber cable.
A prostascope system comprising a prostascope having an outer tube assembly having a distal end with an operational opening and an elongated telescopic tube, a bridge, said telescopic tube being removably disposed on said bridge and having a distal end juxtaposed to said operational opening in said outer tube assembly, said bridge being removably disposed in said outer tube assembly, said bridge comprising an operational tube having a longitudinal axis and a distal end portion disposed at said operational opening in said outer tube assembly, a fiber cable for transmitting a laser beam disposed in said operational tube, said fiber cable having a laser beam emitting end disposed at said operational opening in said outer tube assembly, a reflector detectably mounted on said distal end portion of said operational tube, said reflector having a reflecting surface, a guide member means mounted on said distal end portion of said operational tube, said fiber cable having a bent distal end portion disposed at an obtuse angle relative to said longitudinal axis, said distal end portion being bent as said distal end portion engages said guide member means, said reflecting surface of said reflector means being spaced from said distal end of said telescopic tube, said guide member means being positioned to be engaged by said fiber cable to guide said laser beam emitting end of said fiber cable to a position facing said reflecting surface and to a position between said reflecting surface and said distal end of said telescopic tube to thereby enable visual recognition via said telescopic tube of the affected part irradiated by the laser beam emitted from said laser beam emitting end of said fiber cable.
A prostascope comprising an outer tube assembly having a distal end with an operational opening, a bridge removably disposed in said outer tube assembly, said bridge including an operational tube having a distal end portion disposed at said operational opening in said outer tube assembly, a fiber cable for transmitting a laser beam disposed in said operational tube, said fiber cable having a laser beam emitting end disposed at said operational opening in said outer tube assembly, a reflector, threaded means detachably mounting said reflector on said distal end portion of said operational tube, said reflector having a reflecting surface, a guide member means mounted on said distal end portion of said operational tube, an elongated telescopic tube means removably disposed on said bridge, said telescopic tube means having a distal end spaced from said reflecting surface of said reflector means, said guide member means being positioned to be engaged by said fiber cable to guide said laser beam emitting end of said fiber cable to a position facing said reflecting surface and to a position between said reflecting surface and said distal end of said telescopic tube means to thereby enable visual recognition via said telescopic tube means of the affected part irradiated by the laser beam emitted from said laser beam emitting end of said fiber cable.
A prostascope comprising an outer tube assembly having a distal end with an operational opening, a bridge removably disposed in said outer tube assembly, said bridge including an operational tube having a longitudinal axis and a distal end portion disposed at said operational opening in said outer tube assembly, a fiber cable for transmitting a laser beam disposed in said operational tube, said fiber cable having a laser beam emitting end disposed at said operational opening in said outer tube assembly, a reflector detectably mounted on said distal end portion of said operational tube, said reflector having a reflecting surface, a guide member means mounted on said distal end portion of said operational tube, an elongated telescopic tube means removably disposed on said bridge, said telescopic tube means having a distal end spaced from said reflecting surface of said reflector means, said guide member means being positioned to be engaged by said fiber cable to guide said laser beam emitting end of said fiber cable to a position facing said reflecting surface and to a position between said reflecting surface and said distal end of said telescopic tube means to thereby enable visual recognition via said telescopic tube means of the affected part irradiated by the laser beam emitted from said laser beam emitting end of said fiber cable, said fiber cable having a bent distal end portion disposed at an obtuse angle relative to said longitudinal axis, said distal end portion being bent as said distal end portion engages said guide member means.
A prostascope comprising an outer tube assembly having a distal end with an operational opening, a bridge removably disposed in said outer tube assembly, said bridge including an operational tube having a longitudinal axis and a distal end portion disposed at said operational opening in said outer tube assembly, a fiber cable for transmitting a laser beam disposed in said operational tube, said fiber cable having a laser beam emitting end disposed at said operational opening in said outer tube assembly, a reflector detectably mounted on said distal end portion of said operational tube, said reflector having a reflecting surface, a guide member means mounted on said distal end portion of said operational tube, an elongated telescopic tube means removably disposed on said bridge, said telescopic tube means having a distal end spaced from said reflecting surface of said reflector means, said guide member means being positioned to be engaged by said fiber cable to guide said laser beam emitting end of said fiber cable to a position facing said reflecting surface and to a position between said reflecting surface and said distal end of said telescopic tube means to thereby enable visual recognition via said telescopic tube means of the affected part irradiated by the laser beam emitted from said laser beam emitting end of said fiber cable, said distal end of said telescopic tube means having a distal end surface disposed at an acute angle relative to the longitudinal axis of said telescopic tube means, said guide member means being positioned to be engaged by said fiber cable to guide said laser beam emitting end of said fiber cable in said space between said reflecting surface of said reflector and said distal end surface of said telescopic tube means.
Dependencies are inferred from the claim text.