Cutting blade assembly for an arthroscopic surgical instrument drive system
First Claim
1. A disposable, limited use cutting blade assembly for use with a handpiece having motor means for rotatably driving said cutting blade assembly, the handpiece having bore means for receiving the cutting blade assembly and sensing means disposed adjacent said bore means for sensing a coded representation of a predetermined characteristic of the cutting blade assembly to control an operating parameter of said motor, said cutting blade assembly comprising:
- an elongate tubular outer member having a distal end with an opening therein, a proximal end, a plastic hub unremovably secured to said proximal end so as to be a permanent part of said outer member, said hub being configured to be directly received and engaged in said handpiece bore means in a particular orientation relative to the sensing means, and having a coding structure in said hub for identifying the predetermined characteristic of the cutting blade to be sensed by the sensing means; and
an elongate inner member received in said outer member and having a distal cutting end disposed adjacent said opening in said distal end of said outer member, and a proximal end adapted to be received in the handpiece bore means and rotatably driven by the motor means to rotate said inner member in said outer member.
1 Assignment
0 Petitions
Accused Products
Abstract
A disposable cutting blade assembly for use with a handpiece having a motor for rotatably driving the cutting blade assembly includes a plastic hub mounted on a proximal end of an outer member. The hub is configured to be received in a bore in the handpiece in a particular orientation relative to blade coding sensors therein. The presence and absence of elements in the hub are detected by the sensors to identify the type of cutting blade received in the handpiece.
102 Citations
24 Claims
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1. A disposable, limited use cutting blade assembly for use with a handpiece having motor means for rotatably driving said cutting blade assembly, the handpiece having bore means for receiving the cutting blade assembly and sensing means disposed adjacent said bore means for sensing a coded representation of a predetermined characteristic of the cutting blade assembly to control an operating parameter of said motor, said cutting blade assembly comprising:
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an elongate tubular outer member having a distal end with an opening therein, a proximal end, a plastic hub unremovably secured to said proximal end so as to be a permanent part of said outer member, said hub being configured to be directly received and engaged in said handpiece bore means in a particular orientation relative to the sensing means, and having a coding structure in said hub for identifying the predetermined characteristic of the cutting blade to be sensed by the sensing means; and an elongate inner member received in said outer member and having a distal cutting end disposed adjacent said opening in said distal end of said outer member, and a proximal end adapted to be received in the handpiece bore means and rotatably driven by the motor means to rotate said inner member in said outer member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A disposable, limited use cutting blade assembly for utilization with a handpiece having motor means for rotatably driving different types of cutting blade assemblies over different respective ranges of rotating speeds, handpiece bore means for receiving the cutting blade assembly, and sensing means disposed adjacent the bore means for sensing a coded representation of the type of cutting blade assembly received in the bore, said assembly comprising:
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an elongate tubular outer member having a distal end with an opening therein and a proximal end, said outer member having a plastic hub unremovably secured to said proximal end to comprise a permanent part of said outer member, said hub being configured to be directly inserted into the bore means of the handpiece in a particular orientation relative to said sensing means, said hub including coding structure at one of plural possible coding locations to be sensed by the sensing means when said hub is received in the handpiece bore means in said particular orientation, wherein the coding location of said coding structure is sensed by said sensing means to identify the type of said cutting blade assembly; and an elongate inner member received in said outer member and having a distal cutting end disposed adjacent said opening in said distal end of said outer member, said inner member having a proximal end configured to be received in the bore means of the handpiece and to be rotatably driven by the motor means to rotate in said outer member. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A disposable, limited use cutting blade assembly for use with a handpiece having motor means for rotatably driving said cutting blade assembly, bore means for receiving said cutting blade assembly and sensing means disposed adjacent said bore means, said cutting blade assembly comprising:
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an elongate tubular outer member having a distal end with an opening therein and a proximal end; an elongate inner member received in said outer member and having a distal cutting end disposed adjacent said opening in said distal end of said outer member and a proximal end adapted to be received in the bore means of the handpiece and to be rotatably driven by the motor means to rotate in said outer member; a plastic hub unremovably mounted on said proximal end of said outer member and having a configuration to be directly received in the bore means of the handpiece in a particular orientation relative to the sensing means; and coding means having a characteristic detectable by said sensing means, said coding means being received by said plastic hub so that said cutting blade assembly can be identified by the sensing means in the handpiece detecting the presence of said coding means.
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- 23. The method of identifying to a handpiece of a rotatable blade surgical instrument a type of cutting blade assembly removably inserted into the handpiece, wherein the handpiece includes a sensor for detecting a coded representation of the type of cutting blade assembly inserted into the handpiece, said method comprising the step of coding the cutting blade assembly itself, as opposed to employing a separate coding adapter secured between the cutting blade assembly and the handpiece, to provide the coded representation of the type of cutting blade assembly inserted into the handpiece.
Specification