US5968062A — Surgical cutting device removeably connected to a…

Claim 1

Independent Claim 183 words

A cutting device for removing tissue matter from a surgical site during a surgical procedure, which comprises: means for emulsifying the tissue matter during a surgical procedure; the emulsifying means including a cutting head having an entry tip dimensioned to facilitate entry of the cutting head within the tissue matter and two cutting blades, and defining an axis about which the cutting head rotates, each cutting blade positioned with respect to the axis to define a window extending through the cutting head, each cutting blade defining a leading cutting edge adapted to cut the tissue matter upon rotation of the cutting head in one direction of rotation, the cutting blades dimensioned and configured to generally direct tissue portions cut by the cutting edges to the window of the cutting head whereby the cut tissue portions are at least partially emulsified upon continued rotation of the cutting head, each cutting blade defining an interior wall portion extending continuously at a fixed angle from the leading cutting edge substantially through the cutting head; and means for rotatably supporting the emulsifying means during the surgical procedure.

Claim 2

Dependent Claim 183 words

A cutting device for removing tissue matter from a surgical site during a surgical procedure, which comprises: means for emulsifying the tissue matter during a surgical procedure; the emulsifying means including a cutting head having an entry tip dimensioned to facilitate entry of the cutting head within the tissue matter and two cutting blades, and defining an axis about which the cutting head rotates, each cutting blade positioned with respect to the axis to define a window extending through the cutting head, each cutting blade defining a leading cutting edge adapted to cut the tissue matter upon rotation of the cutting head in one direction of rotation, the cutting blades dimensioned and configured to generally direct tissue portions cut by the cutting edges to the window of the cutting head whereby the cut tissue portions are at least partially emulsified upon continued rotation of the cutting head, each cutting blade defining an interior wall portion extending continuously at a fixed angle from the leading cutting edge substantially through the cutting head; and means for rotatably supporting the emulsifying means during the surgical procedure.

Claim 3

Dependent Claim 24 words

The cutting device of claim 1 wherein the window in the emulsifying means defines two walls extending at an angle from each cutting blade.

Claim 4

Dependent Claim 31 words

The cutting device of claim 2 wherein the walls extend at an angle from about 15° to about 30° from a horizontal plane extending perpendicular to an opening of the window.

Claim 5

Dependent Claim 17 words

The cutting device of claim 1 wherein the emulsifying means is a generally elliptically shaped cutting head.

Claim 6

Dependent Claim 18 words

The cutting device of claim 4 wherein the support means comprises a main shaft and a mounting shaft.

Claim 7

Dependent Claim 25 words

The cutting device of claim 5 wherein the main shaft, mounting shaft and cutting head are formed from a single piece of hardened surgical steel.

Claim 8

Dependent Claim 25 words

The cutting device of claim 6 wherein the cutting head, main shaft and mounting shaft include an aspiration channel for the aspiration of removed matter.

Claim 9

Dependent Claim 13 words

The cutting device of claim 5 wherein the main shaft includes depth indicators.

Claim 10

Dependent Claim 14 words

The cutting device of claim 1 wherein the entry tip is generally elliptically shaped.

Claim 11

Dependent Claim 14 words

The cutting device of claim 1 wherein the entry tip is generally bullet shaped.

Claim 12

Dependent Claim 14 words

The cutting device of claim 1 wherein the entry tip is generally arrow shaped.

Claim 13

Dependent Claim 14 words

The cutting device of claim 1 wherein the support means is a tapered shaft.

Claim 14

Dependent Claim 17 words

The cutting device of claim 1 wherein the emulsifying means is a generally round shaped cutting head.

Claim 15

Dependent Claim 18 words

The cutting device of claim 1 wherein the emulsifying means is a generally tear drop shaped cutting head.

Claim 16

Dependent Claim 17 words

The cutting device of claim 1 wherein the emulsifying means is a generally bulb shaped cutting head.

Claim 17

Dependent Claim 19 words

The cutting device of claim 1 wherein at least some of the matter to be removed is soft tissue.

Claim 18

Dependent Claim 19 words

The cutting device of claim 1 wherein at least some of the matter to be removed is bone mass.

Claim 19

Dependent Claim 25 words

The cutting device of claim 1 wherein said emulsifying means has a center of gravity located at a central axis extending along a length thereof.

Claim 20

Dependent Claim 31 words

The cutting device of claim 1 wherein the support means comprises a main shaft and a mounting shaft, said mounting shaft having a diameter adapted for insertion into a surgical drill.

Claim 21

Dependent Claim 34 words

The cutting device of claim 1 further comprising a guard for sliding onto a collet of a drill, said guard having an opening extending along a length thereof for insertion of the supporting means.

Claim 22

Dependent Claim 118 words

A surgical cutting device for emulsifying matter from a surgical site comprising: a cutting head having an entry tip adapted to facilitate entry of the cutting head into tissue matter and two substantially rigid, autonomous cutting blades, each cutting blade located on opposed edges of a window extending through an interior portion of the cutting head such that each cutting blade forms a leading edge adapted to cut the tissue matter in the same direction of rotation, each cutting blade defining an interior wall portion extending continuously at a fixed angle from the leading edge substantially through the cutting head; and a shaft connected to the cutting head for mounting the cutting head to a rotary surgical drill.

Claim 23

Dependent Claim 118 words

A surgical cutting device for emulsifying matter from a surgical site comprising: a cutting head having an entry tip adapted to facilitate entry of the cutting head into tissue matter and two substantially rigid, autonomous cutting blades, each cutting blade located on opposed edges of a window extending through an interior portion of the cutting head such that each cutting blade forms a leading edge adapted to cut the tissue matter in the same direction of rotation, each cutting blade defining an interior wall portion extending continuously at a fixed angle from the leading edge substantially through the cutting head; and a shaft connected to the cutting head for mounting the cutting head to a rotary surgical drill.

Claim 24

Dependent Claim 24 words

The cutting device of claim 21 wherein the window in the cutting head includes two walls extending at an angle from each cutting blade.

Claim 25

Dependent Claim 23 words

The cutting device of claim 21 wherein an aspiration channel extends from the cutting head through the main shaft for aspirating emulsified matter.

Claim 26

Dependent Claim 19 words

The cutting device of claim 21 wherein at least some of the matter to be emulsified is soft tissue.

Claim 27

Dependent Claim 19 words

The cutting device of claim 21 wherein at least some of the matter to be emulsified is bone mass.

Claim 28

Dependent Claim 124 words

A surgical cutting device comprising: a shaft connectable to a rotary surgical drill and defining a longitudinal axis; a cutting head mounted to the shaft for cutting and reducing tissue matter; the cutting head including an entry tip and two cutting blades, each cutting blade arranged about the longitudinal axis to define a window extending through the cutting head, the cutting blades having interior wall portions disposed adjacent the window, each interior wall portion arranged at a predetermined angle with respect to the longitudinal axis and extending continuously substantially through the cutting head at the predetermined angle to terminate in a leading cutting edge, the leading cutting edges adapted to cut tissue matter upon rotation of the cutting head in one direction of rotation.

Claim 29

Dependent Claim 124 words

A surgical cutting device comprising: a shaft connectable to a rotary surgical drill and defining a longitudinal axis; a cutting head mounted to the shaft for cutting and reducing tissue matter; the cutting head including an entry tip and two cutting blades, each cutting blade arranged about the longitudinal axis to define a window extending through the cutting head, the cutting blades having interior wall portions disposed adjacent the window, each interior wall portion arranged at a predetermined angle with respect to the longitudinal axis and extending continuously substantially through the cutting head at the predetermined angle to terminate in a leading cutting edge, the leading cutting edges adapted to cut tissue matter upon rotation of the cutting head in one direction of rotation.

Claim 30

Dependent Claim 23 words

The cutting device of claim 26 further having an aspiration channel extending from the cutting head through the shaft for aspirating reduced matter.

Claim 31

Dependent Claim 173 words

A surgical cutting device for emulsifying matter from a surgical site, comprising: a main shaft defining a longitudinal axis; a mounting shaft positioned at one end of the main shaft, the mounting shaft having a diameter adapted for insertion into a surgical drill; and a cutting head positioned at another end of the main shaft opposite the mounting shaft, the cutting head having an entry tip and first and second cutting elements arranged about the longitudinal axis to define a window extending through an interior portion of the cutting head, each cutting element defining a leading cutting edge adapted to cut in the same direction of rotation and being located on an opposed edge of the window, and having an angled wall extending continuously from the leading cutting edge substantially through the cutting head at a predetermined angle, the angled wall dimensioned to facilitate directing of tissue portions cut by the cutting elements into the window whereby the cut tissue portions are at least partially emulsified upon continued rotation of the cutting head.

Claim 32

Dependent Claim 173 words

A surgical cutting device for emulsifying matter from a surgical site, comprising: a main shaft defining a longitudinal axis; a mounting shaft positioned at one end of the main shaft, the mounting shaft having a diameter adapted for insertion into a surgical drill; and a cutting head positioned at another end of the main shaft opposite the mounting shaft, the cutting head having an entry tip and first and second cutting elements arranged about the longitudinal axis to define a window extending through an interior portion of the cutting head, each cutting element defining a leading cutting edge adapted to cut in the same direction of rotation and being located on an opposed edge of the window, and having an angled wall extending continuously from the leading cutting edge substantially through the cutting head at a predetermined angle, the angled wall dimensioned to facilitate directing of tissue portions cut by the cutting elements into the window whereby the cut tissue portions are at least partially emulsified upon continued rotation of the cutting head.

Claim 33

Dependent Claim 18 words

The cutting device of claim 21 wherein each cutting blade is dimensioned to extend at a fixed angle.

Claim 34

Dependent Claim 29 words

The cutting device of claim 29 wherein the leading edges of the cutting blades are adapted to cut tissue matter encountered through 360° in the same direction of rotation.

Claim 35

Dependent Claim 23 words

The cutting device of claim 28 wherein the angled wall of each cutting element is dimensioned to extend substantially through the cutting head.

Claim 36

Dependent Claim 159 words

A cutting device for emulsifying a variety of different types of matter from a surgical site during a surgical procedure comprising: means for emulsifying the variety of different types of matter during the surgical procedure; said emulsifying means including an entry tip adapted to provide an entry of the cutting head into the variety of different types of matter to be cut by the cutting head and two hardened, autonomous, stand alone cutting blades, the cutting blades each having an interior wall arranged at a fixed angle relative to a central bisecting plane extending between the cutting blades and extending continuously substantially through the cutting head at the fixed angle, the interior walls defining a window therebetween such that each cutting blade defines a leading edge adapted to cut through the variety of different types of matter it encounters through 360° in the same direction of rotation; and means for rotatably supporting the emulsifying means during the surgical procedure.

Claim 37

Dependent Claim 159 words

A cutting device for emulsifying a variety of different types of matter from a surgical site during a surgical procedure comprising: means for emulsifying the variety of different types of matter during the surgical procedure; said emulsifying means including an entry tip adapted to provide an entry of the cutting head into the variety of different types of matter to be cut by the cutting head and two hardened, autonomous, stand alone cutting blades, the cutting blades each having an interior wall arranged at a fixed angle relative to a central bisecting plane extending between the cutting blades and extending continuously substantially through the cutting head at the fixed angle, the interior walls defining a window therebetween such that each cutting blade defines a leading edge adapted to cut through the variety of different types of matter it encounters through 360° in the same direction of rotation; and means for rotatably supporting the emulsifying means during the surgical procedure.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2002-10-18	2003-04-19	2003-10-19	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2006-10-18	2007-04-19	2007-10-19	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2010-10-18	2011-04-19	2011-10-19	$7700.00	Window Closed / Lapsed

Surgical cutting device removeably connected to a rotarty drive element

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