Surgical cutting accessory with encapsulated RFID chip
First Claim
Patent Images
1. A cutting accessory for actuation by a powered surgical handpiece, said cutting accessory comprising:
- a drive hub formed with at least one geometric feature for causing said drive hub to engage an output shaft of a handpiece motor;
a drive shaft that extends forward from said drive hub;
an outer hub disposed over said drive hub, said outer hub having;
an outer hub base that has an inner wall that defines an outer hub bore with an outer hub proximal end opening, said drive hub being at least partially seated in the outer hub bore; and
a distal end opening through which said drive shaft extends;
a removable accessory identification assembly including;
a support member seated in the outer hub bore and spaced distally away from the outer hub proximal end opening, said support member being positioned against the base inner wall;
an RFID chip mounted to said support member; and
a coil of electrical conductor connected to said RFID chip and mounted to said support member;
anda seal disposed in the outer hub bore so as to extend out of the outer hub proximal end opening, said seal being disposed against the inner wall of said outer hub base,wherein said support member of said accessory identification assembly seats against a distal facing surface of said seal.
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Abstract
A cutting accessory for use with a powered surgical tool. The accessory includes a drive shaft to which an outer hub is attached. Internal to the outer hub is a self-contained transponder formed from an RFID chip and a coil of electrical conductor embedded within a solid substrate or encapsulated within a plastic enclosure. The transponder wirelessly communicates one or more pieces of information concerning the identity and operation of the accessory to the surgical tool when the accessory is attached to the surgical tool.
107 Citations
18 Claims
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1. A cutting accessory for actuation by a powered surgical handpiece, said cutting accessory comprising:
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a drive hub formed with at least one geometric feature for causing said drive hub to engage an output shaft of a handpiece motor; a drive shaft that extends forward from said drive hub; an outer hub disposed over said drive hub, said outer hub having;
an outer hub base that has an inner wall that defines an outer hub bore with an outer hub proximal end opening, said drive hub being at least partially seated in the outer hub bore; and
a distal end opening through which said drive shaft extends;a removable accessory identification assembly including; a support member seated in the outer hub bore and spaced distally away from the outer hub proximal end opening, said support member being positioned against the base inner wall; an RFID chip mounted to said support member; and a coil of electrical conductor connected to said RFID chip and mounted to said support member; and a seal disposed in the outer hub bore so as to extend out of the outer hub proximal end opening, said seal being disposed against the inner wall of said outer hub base, wherein said support member of said accessory identification assembly seats against a distal facing surface of said seal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An accessory for attachment to a powered surgical tool, comprising:
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a drive shaft designed for one of manipulating and analyzing tissue; and a coupling designed to removably attach said drive shaft to the powered surgical tool and facilitate a transfer of power from the powered surgical tool to said drive shaft, said coupling comprising; a drive hub formed with at least one geometric feature for causing said drive hub to engage an output shaft of a handpiece motor; an outer hub having opposed proximal and distal ends with an axially extending through bore that extends from the proximal end to the distal end of said outer hub, said bore having a proximal end opening and a distal end opening; an inner wall that defines a proximal end section of the bore; at least one lateral opening that extends from said inner wall to an adjacent outer wall of said outer hub, and wherein said drive hub extends out of the proximal end opening and said drive shaft extends out of the distal end opening; a self-contained removable transponder removably secured in the proximal end section of the outer hub bore within said accessory and configured to wirelessly communicate at least one of identification and operational information concerning said accessory to the powered surgical tool, said transponder comprising a solid state chip and an attached length of electrical conductor embedded within a solid substrate; and a seal disposed in the proximal end section of the outer hub bore between the proximal end opening and said transponder. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification