US4931047A — Method and apparatus for providing enhanced tissu…

Claim 1

Independent Claim 152 words

A surgical apparatus for performing one or more surgical procedures at a surgical site on a patient comprising: a handpiece, a tool supported by said handpiece, said tool having a vibratable tool tip, an RF current means selectively operable for providing an RF current to said tool tip for allowing performance of an electrosurgical procedure at the surgical site, a vibrating means for ultrasonically vibrating said tool tip, said tool tip having a top opening, said tool having a tool passageway therethrough communicating with said tip opening, and an aspirating means for applying a suction pressure on said tool passageway for aspirating tissue particles and fluid at the surgical site through said tip opening through said tool passageway and away from the surgical site, said RF current means including a switching means for switching the RF current provided to said tool tip to at least an RF cutting current during ultrasonic vibration.

Claim 2

Dependent Claim 152 words

A surgical apparatus for performing one or more surgical procedures at a surgical site on a patient comprising: a handpiece, a tool supported by said handpiece, said tool having a vibratable tool tip, an RF current means selectively operable for providing an RF current to said tool tip for allowing performance of an electrosurgical procedure at the surgical site, a vibrating means for ultrasonically vibrating said tool tip, said tool tip having a top opening, said tool having a tool passageway therethrough communicating with said tip opening, and an aspirating means for applying a suction pressure on said tool passageway for aspirating tissue particles and fluid at the surgical site through said tip opening through said tool passageway and away from the surgical site, said RF current means including a switching means for switching the RF current provided to said tool tip to at least an RF cutting current during ultrasonic vibration.

Claim 3

Dependent Claim 13 words

The apparatus of claim 1 including, said switching means being on said handpiece.

Claim 4

Dependent Claim 17 words

The apparatus of claim 2 including, said switching means being secured to and supported by said handpiece.

Claim 5

Dependent Claim 14 words

The apparatus of claim 3 including, said switching means being built into said handpiece.

Claim 6

Dependent Claim 25 words

The apparatus of claim 2 including, said switching means comprising a footswitch adapted to be operated by a foot of the operator of said handpiece.

Claim 7

Dependent Claim 39 words

The apparatus of claim 1 including, said switching means comprising a manifold secured to said handpiece and a switch assembly connected to said manifold and movable therewith when securing said manifold to or removing said manifold from said handpiece.

Claim 8

Dependent Claim 15 words

The apparatus of claim 6 including, said switch assembly being integrally formed with said manifold.

Claim 9

Dependent Claim 35 words

The apparatus of claim 1 including, said switching means comprising a nosecone securable onto said handpiece, a switch secured to said nosecone, and a cable means for operatively connecting said switch to an electrosurgical unit.

Claim 10

Dependent Claim 20 words

The apparatus of claim 8 including, said switching means including a securing means for securing said nosecone to said handpiece.

Claim 11

Dependent Claim 18 words

The apparatus of claim 1 including, said switching means comprising a push button switch assembly at said handpiece.

Claim 12

Dependent Claim 17 words

The apparatus of claim 1 including, said switching means comprising a rocker-type switch assembly at said handpiece.

Claim 13

Dependent Claim 17 words

The apparatus of claim 1 including, said switching means comprising a slide-type switch assembly at said handpiece.

Claim 14

Dependent Claim 20 words

The apparatus of claim 1 including, said switching means comprising a single pole double throw switch which is normally open.

Claim 15

Dependent Claim 12 words

The apparatus of claim 1 including, said RF current being 500 KHz.

Claim 16

Dependent Claim 13 words

The apparatus of claim 1 including, said RF cutting current being 500 KHz.

Claim 17

Dependent Claim 23 words

The apparatus of claim 1 including, a connecting means for operatively connecting said handpiece to an electrosurgical unit which generates the RF current.

Claim 18

Dependent Claim 30 words

The apparatus of claim 16 including, said connecting means including a selecting means for selecting between cutting and coagulating modes of the RF current to be delivered to said tip.

Claim 19

Dependent Claim 24 words

The apparatus of claim 1 including, an irrigating means associated with said handpiece for providing irrigating fluid to the surgical site adjacent said tip.

Claim 20

Dependent Claim 37 words

The apparatus of claim 18 including, said irrigating means including an irrigating fluid passageway at least a part of which is supported by said handpiece, and said passageway having a passageway exit port adjacent to said tip.

Claim 21

Dependent Claim 18 words

The apparatus of claim 1 including, said RF current means including an electrosurgical unit for generating RF energy.

Claim 22

Dependent Claim 30 words

The apparatus of claim 20 including, said electrosurgical unit being a stand-free unit and said RF current means including a cable electrically connecting said stand-free electrosurgical unit to said handpiece.

Claim 23

Dependent Claim 28 words

The apparatus of claim 1 including, said RF current means including an acoustic vibrator component supported by said handpiece and operatively connectable to a source of RF energy.

Claim 24

Dependent Claim 20 words

The apparatus of claim 22 including, a mechanical connecting means for operatively connecting said acoustic vibrator component to said tip.

Claim 25

Dependent Claim 21 words

The apparatus of claim 22 including, a conducting fluid connecting means for operatively connecting said acoustic vibrator component to said tip.

Claim 26

Dependent Claim 25 words

The apparatus of claim 24 including, said conducting fluid connecting means using a surgical site irrigating fluid for conducting the RF energy to said tip.

Claim 27

Dependent Claim 45 words

The apparatus of claim 1 including, said RF current means including a generating means for generating the RF current, said aspirating means including a suction means for generating the suction pressure, and a housing means for housing together said generating means and said suction means.

Claim 28

Dependent Claim 42 words

The apparatus of claim 1 including, said RF current means is operable for delivering RF current to said tool tip in an electorsurgical procedure on tissue at the surgical site while said vibrating means is ultrasonically fragmenting tissue at the surgical site.

Claim 29

Dependent Claim 51 words

The apparatus of claim 1 including, said RF current means is operable for delivering to deliver RF current to said tool tip in an electrosurgical procedure on tissue at the surgical site while said aspirating means is aspirating tissue particles and fluid through said tip opening away from the surgical site.

Claim 30

Dependent Claim 24 words

The apparatus of claim 1 including, said RF current means including a coupling means for electrically coupling said tool tip with an electrosurgical unit.

Claim 31

Dependent Claim 45 words

The apparatus of claim 29 including, said RF current means including an electrical filtering means for preventing malfunctioning of the logic controls of said apparatus when said coupling means is coupling said tool tip with the electrosurgical unit and the electrosurgical unit is being activated.

Claim 32

Dependent Claim 24 words

The apparatus of claim 1 wherein: said switching means is selectively operable to switch said RF current means to supply an RF cauterizing current.

Claim 33

Dependent Claim 24 words

The apparatus of claim 31 wherein: said switching means is selectively operable to provide a simultaneous blend of RF cutting and RF coagulating currents.

Claim 34

Dependent Claim 28 words

The apparatus of claim 32 wherein: said switching means is selectively operable to control said RF current to an inoperative condition independent of operation of said vibrating means.

Claim 35

Dependent Claim 21 words

The apparatus of claim 31 wherein: said switching means uses a saline type solution for connecting RF current to said tool.

Claim 36

Dependent Claim 29 words

The apparatus of claim 1 wherein: said switching means is selectively operable to control said RF current means to an inoperative condition independent of operation of said vibrating means.

Claim 37

Independent Claim 68 words

A method for conducting enhanced cutting at a surgical site on a patient comprising: applying at least an RF cutting current to an operative tip of an ultrasonic surgical aspirating instrument, ultrasonically vibrating the operative tip, positioning the tip at the surgical site, and thereafter, positioning the tip at the surgical site as needed as the RF cutting current is delivered by the tip to the surgical site.

Claim 38

Independent Claim 68 words

A method for conducting enhanced cutting at a surgical site on a patient comprising: applying at least an RF cutting current to an operative tip of an ultrasonic surgical aspirating instrument, ultrasonically vibrating the operative tip, positioning the tip at the surgical site, and thereafter, positioning the tip at the surgical site as needed as the RF cutting current is delivered by the tip to the surgical site.

Claim 39

Dependent Claim 14 words

The method of claim 36 including, said applying step being before said positioning step.

Claim 40

Dependent Claim 14 words

The method of claim 36 including, said positioning step being before said applying step.

Claim 41

Dependent Claim 28 words

The method of claim 36 including, contacting a dispersive electrode to the patient to form part of an electrical loop with a source of the RF cutting current.

Claim 42

Dependent Claim 21 words

The method of claim 36 including, performing ultrasonic fragmentation on tissue at the surgical site with the tip of the instrument.

Claim 43

Dependent Claim 24 words

The method of claim 40 including, said performing step being while the RF current is being delivered through the tip to the surgical site.

Claim 44

Dependent Claim 30 words

The method of claim 36 including, with the tip being positioned at the surgical site, switching the instrument between an RF coagulating mode thereof and an RF cutting mode thereof.

Claim 45

Dependent Claim 35 words

The method of claim 33 including, applying an RF coagulating current to the tip during said applying an RF cutting current step and delivering the blend current thereby produced to tissue at the surgical site.

Claim 46

Dependent Claim 28 words

The method of claim 36 including, delivering via the tip the RF coagulating current in a dessication procedure for deep coagulation drying out of large volumes of tissue.

Claim 47

Dependent Claim 28 words

The method of claim 36 including, delivering via the tip the RF coagulating current in a fulguration procedure for spray coagulation for drying out the surface of tissue.

Claim 48

Dependent Claim 26 words

The method of claim 36 including, supplying an irrigating fluid to the surgical site generally adjacent to said tip via fluid conduit supported by a handpiece.

Claim 49

Independent Claim 87 words

A method for electrosurgically cutting tissue at a surgical site on a patient comprising: applying an RF cutting or an RF coagulating current to an operative tip of an ultrasonic aspirating instrument, ultrasonically vibrating the tip, thereafter, positioning the tip at the site as needed, as the RF cutting current is delivered to the surgical site to perform the tissue cutting procedure, with the tip being positioned generally at the surgical site, switching the instrument between an RF coagulating mode thereof and an RF cutting mode thereof.

Claim 50

Independent Claim 87 words

A method for electrosurgically cutting tissue at a surgical site on a patient comprising: applying an RF cutting or an RF coagulating current to an operative tip of an ultrasonic aspirating instrument, ultrasonically vibrating the tip, thereafter, positioning the tip at the site as needed, as the RF cutting current is delivered to the surgical site to perform the tissue cutting procedure, with the tip being positioned generally at the surgical site, switching the instrument between an RF coagulating mode thereof and an RF cutting mode thereof.

Claim 51

Dependent Claim 14 words

The method of claim 47 including, said applying step being before said positioning step.

Claim 52

Dependent Claim 14 words

The method of claim 47 including, said positioning step being before said applying step.

Claim 53

Dependent Claim 21 words

The method of claim 47 including, performing ultrasonic fragmentation on tissue at the surgical site with the tip of the instrument.

Claim 54

Dependent Claim 25 words

The method of claim 50 including, said performing step being while the RF cutting current is being delivered through the tip to the surgical site.

Claim 55

Dependent Claim 28 words

The method of claim 47 including, affixing a dispersive electrode to the patient to form part of an electrical loop with a source of the RF cutting current.

Claim 56

Dependent Claim 33 words

The method of claim 47 including, while delivering the RF cutting current to the surgical site, aspirating tissue particles and fluid through an opening in the tip and away from the surgical site.

Claim 57

Dependent Claim 27 words

The method of claim 47 including, supplying an irrigating fluid to the surgical site generally adjacent to the tip via a fluid conduit supported by a handpiece.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1993-06-04	1993-12-04	1994-06-05	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1997-06-04	1997-12-04	1998-06-05	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2001-06-04	2001-12-04	2002-06-05	$7700.00	Window Closed / Lapsed

Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis

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