US7033357B2 — Apparatus and method for minimally invasive surge…

Claim 1

Independent Claim 141 words

A surgical instrument comprising: a tube having a distal end and a proximal end and defining a lumen therethrough, said distal end including a cutting edge extending longitudinally therefrom; a shaft within said lumen of said tube, said shaft having a distal end and a proximal end, said distal end of said shaft including a blade, one of said shaft and said tube being rotatable with respect to the other such that said blade cooperates with said cutting edge to cur body tissue between said cutting edge and said blade; and a handle coupled to a proximal end of said tube and having an opening therethrough in communication with said lumen of said tube, wherein said lumen of said tube has a dimension suitable to accommodate, in addition to the shaft, an auxiliary instrument inserted through the opening in the handle.

Claim 2

Dependent Claim 141 words

A surgical instrument comprising: a tube having a distal end and a proximal end and defining a lumen therethrough, said distal end including a cutting edge extending longitudinally therefrom; a shaft within said lumen of said tube, said shaft having a distal end and a proximal end, said distal end of said shaft including a blade, one of said shaft and said tube being rotatable with respect to the other such that said blade cooperates with said cutting edge to cur body tissue between said cutting edge and said blade; and a handle coupled to a proximal end of said tube and having an opening therethrough in communication with said lumen of said tube, wherein said lumen of said tube has a dimension suitable to accommodate, in addition to the shaft, an auxiliary instrument inserted through the opening in the handle.

Claim 3

Dependent Claim 13 words

The instrument of claim 1 wherein said shaft is coaxial with said tube.

Claim 4

Dependent Claim 13 words

The instrument of claim 2 wherein said shaft defines an inner lumen therethrough.

Claim 5

Dependent Claim 29 words

The instrument of claim 2 wherein said shaft defines an inner lumen therethrough having a dimension such that an imaging device may be inserted therein as the auxiliary instrument.

Claim 6

Dependent Claim 30 words

The instrument of claim 2 wherein said shaft defines an inner lumen therethrough having a dimension such that a separate surgical instrument may be inserted therein as the auxiliary instrument.

Claim 7

Dependent Claim 24 words

The instrument of claim 1 wherein said tube has a first axis and said shaft has a second axis displaced from said first axis.

Claim 8

Dependent Claim 20 words

The instrument of claim 1 wherein one of said cutting edge and said blade is adapted to be electrically energized.

Claim 9

Dependent Claim 19 words

The instrument of claim 1 wherein both said cutting edge and said blade are adapted to be electrically energized.

Claim 10

Dependent Claim 65 words

The instrument of claim 1 further comprising an outer electrode on a surface of said tube, said outer electrode being adjacent said cutting edge, and an inner electrode on a surface of said blade, wherein said blade and said cutting edge mechanically cooperate to cut body tissue, and said inner electrode cooperates with said outer electrode to provide electrocautery of the body tissue being cut.

Claim 11

Dependent Claim 23 words

The instrument of claim 1 wherein said tube is fixedly attached to a handle and said shaft is rotatable relative to said tube.

Claim 12

Dependent Claim 23 words

The instrument of claim 1 wherein said shaft is fixedly attached to a handle and said tube is rotatable relative to said shaft.

Claim 13

Dependent Claim 14 words

The instrument of claim 1 wherein said shaft and said tube are both rotatable.

Claim 14

Dependent Claim 32 words

The instrument of claim 1 wherein said blade has an elongated portion having two opposing surfaces and a cutting edge between said opposing surfaces, said opposing surfaces having an insulating layer thereon.

Claim 15

Dependent Claim 13 words

The instrument of claim 1 wherein said blade includes a serrated cutting edge.

Claim 16

Dependent Claim 14 words

The instrument of claim 1 wherein said cutting edge on said tube is serrated.

Claim 17

Dependent Claim 197 words

A surgical instrument comprising: a handle comprising a longitudinal dimension defining a lumen therethrough; a tube extending from and coupled to said handle, said tube having a distal end and a cutting edge extending longitudinally at said distal end, said tube having a proximal end associated with said handle; and a tubular shaft defining a lumen coaxial with said tube, said shaft rotatably disposed within said tube, said shaft having a proximal end adjacent said handle and a distal end adjacent said distal end of said tube, said shaft having a cutting edge at its distal end, wherein one of said cutting edge on said shaft and said cutting edge on said tube is adapted to be electrically energized, wherein said cutting edge on said shaft and said cutting edge on said tube are positioned relative to one another to cooperate to cut body tissue through a rotation of said tubular shaft, and wherein said lumen of said handle is aligned with said lumen of said tubular shaft such that an auxiliary instrument may be inserted at a proximal end of said handle and through said lumen of said handle and said lumen of said tubular shaft.

Claim 18

Dependent Claim 197 words

A surgical instrument comprising: a handle comprising a longitudinal dimension defining a lumen therethrough; a tube extending from and coupled to said handle, said tube having a distal end and a cutting edge extending longitudinally at said distal end, said tube having a proximal end associated with said handle; and a tubular shaft defining a lumen coaxial with said tube, said shaft rotatably disposed within said tube, said shaft having a proximal end adjacent said handle and a distal end adjacent said distal end of said tube, said shaft having a cutting edge at its distal end, wherein one of said cutting edge on said shaft and said cutting edge on said tube is adapted to be electrically energized, wherein said cutting edge on said shaft and said cutting edge on said tube are positioned relative to one another to cooperate to cut body tissue through a rotation of said tubular shaft, and wherein said lumen of said handle is aligned with said lumen of said tubular shaft such that an auxiliary instrument may be inserted at a proximal end of said handle and through said lumen of said handle and said lumen of said tubular shaft.

Claim 19

Dependent Claim 39 words

The instrument of claim 16 wherein said handle defines an opening in communication with said lumen of said tubular shaft wherein said opening and said lumen provide access through the instrument to said distal end of said tubular shaft.

Claim 20

Dependent Claim 14 words

The instrument of claim 17 further comprising an auxiliary instrument inserted through said opening.

Claim 21

Dependent Claim 28 words

The instrument of claim 18 wherein said auxiliary instrument is selected from the group consisting or a suction cannula, an irrigation cannula, an imaging device, and a sensor.

Claim 22

Dependent Claim 20 words

The instrument of claim 16 wherein said cutting edge on said tube extends at an angle away from said tube.

Claim 23

Dependent Claim 20 words

The instrument of claim 16 wherein said cutting edge on said shaft extends at an angle away from said tube.

Claim 24

Dependent Claim 50 words

The instrument of claim 16 wherein said distal end of said tube includes a first scoop and said distal end of said shaft includes a second scoop such that said first and second scoops are operatively associated to collect a biopsy sample when said shaft is rotated within said tube.

Claim 25

Dependent Claim 13 words

The instrument of claim 16 wherein said tube and said shaft are telescoping.

Claim 26

Dependent Claim 13 words

The instrument of claim 16 wherein said tube and said shaft are bendable.

Claim 27

Dependent Claim 134 words

A surgical instrument comprising: a handle comprising a longitudinal dimension defining a lumen; a tube having a distal end and an outer blade extending from said distal end, said tube having a proximal end associated with said handle; and a shaft disposed within said tube, said shaft having a distal end adjacent said distal end of said tube, said shaft having an inner blade extending from said distal end, said shaft having a proximal end extending into said handle, wherein said inner blade and said outer blade are adapted to be electrically energized and positioned to cooperate to cut body tissue through a rotation of one of said tube and said shaft; wherein said tube has a first longitudinal axis and said shaft has a second longitudinal axis displace from said first longitudinal axis.

Claim 28

Dependent Claim 134 words

A surgical instrument comprising: a handle comprising a longitudinal dimension defining a lumen; a tube having a distal end and an outer blade extending from said distal end, said tube having a proximal end associated with said handle; and a shaft disposed within said tube, said shaft having a distal end adjacent said distal end of said tube, said shaft having an inner blade extending from said distal end, said shaft having a proximal end extending into said handle, wherein said inner blade and said outer blade are adapted to be electrically energized and positioned to cooperate to cut body tissue through a rotation of one of said tube and said shaft; wherein said tube has a first longitudinal axis and said shaft has a second longitudinal axis displace from said first longitudinal axis.

Claim 29

Dependent Claim 28 words

The instrument of claim 25 wherein said shaft is fixedly attached to said handle and said tube is rotatable about said first longitudinal axis relative to said shaft.

Claim 30

Independent Claim 136 words

A method for cutting body tissue, the method comprising: inserting a surgical instrument comprising a tube having a distal end, a proximal end, a longitudinal axis between said distal and proximal ends, and a cutting edge at said distal end of said tube, said instrument further including a shaft having a distal end, a proximal end, and a blade at said distal end of said shaft, said shaft being rotatably disposed within said tube such that said cutting edge and said blade are rotatably engageable; inserting an auxiliary instrument through the surgical instrument; aligning the body tissue to be cut between said cutting edge and said blade; and rotating at least one of said tube and said shaft about said longitudinal axis such that said cutting edge and said blade engage to cut the body tissue.

Claim 31

Independent Claim 136 words

A method for cutting body tissue, the method comprising: inserting a surgical instrument comprising a tube having a distal end, a proximal end, a longitudinal axis between said distal and proximal ends, and a cutting edge at said distal end of said tube, said instrument further including a shaft having a distal end, a proximal end, and a blade at said distal end of said shaft, said shaft being rotatably disposed within said tube such that said cutting edge and said blade are rotatably engageable; inserting an auxiliary instrument through the surgical instrument; aligning the body tissue to be cut between said cutting edge and said blade; and rotating at least one of said tube and said shaft about said longitudinal axis such that said cutting edge and said blade engage to cut the body tissue.

Claim 32

Dependent Claim 25 words

The method of claim 27 further comprising electrically energizing at least one of said cutting edge and said blade wherein the body tissue is cauterized.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2009-04-24	2009-10-24	2010-04-25	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2013-04-24	2013-10-24	2014-04-25	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2017-04-24	2017-10-24	2018-04-25	$7700.00	Window Closed / Lapsed

Apparatus and method for minimally invasive surgery using rotational cutting tool

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