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US6440130B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Tissue sealing electrosurgery device and methods of sealing tissue

Assignee: Medtronic Inc
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Filing: 2000-05-26
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Granted: 2002-08-27
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Expires: 2020-05-26
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Abstract

Abstract An electrosurgery medical device is enhanced with unique solution-assistance, and comprises, in combination, co-operating device jaws including jaw portions for manipulating tissue, and a plurality of solution infusion openings defined and spaced along each of the jaw portions, for receiving electrolytic solution and infusing the solution onto and into tissue to be manipulated, along said jaw portions. As preferred, the device further comprises at least one, and most preferably, many, longitudinal groove(s) along at least one and most preferably, both, of the jaw portions, with the solution infusion openings located in the groove or grooves. The solution is energized with RF energy and contributes to the functions and beneficial effects of the instrument. The solution exits the openings in the grooves at sufficient flow rates to separate substantially all the operative surfaces of the device from tissue, thereby substantially completely preventing adherence between the operative surfaces and tissue. The solution is further energized to a range of energy densities such that tissues to be affected are sealed against flow of blood, lymphatic fluids, air, and other bodily fluids and gases.

Inventors

  • 👤 Peter M. J. Mulier
  • 👤 Michael F. Hoey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 23:05
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1445; A61B18/1402; A61B17/00; A61B17/00234; A61B2017/00292; A61B2017/00296; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2945; A61B2018/1405; A61B2018/1425; A61B2018/1432; A61B2018/1472; A61B2218/00; A61B2218/001; A61B2218/002

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 81 words
A medical device comprising: a. a first and second jaw arm forming a device jaw, each jaw arm including a solution delivery channel passing through each jaw arm; b. at least one solution infusion opening on each jaw arm, the solution infusion opening being in communication with the solution delivery channel to permit passage of an electrically conductive solution through the infusion openings from each jaw arm; and c. an electrical conductor for conducting electrical energy to the electrically conductive solution.
Claim 2
Dependent Claim 81 words
A medical device comprising: a. a first and second jaw arm forming a device jaw, each jaw arm including a solution delivery channel passing through each jaw arm; b. at least one solution infusion opening on each jaw arm, the solution infusion opening being in communication with the solution delivery channel to permit passage of an electrically conductive solution through the infusion openings from each jaw arm; and c. an electrical conductor for conducting electrical energy to the electrically conductive solution.
Claim 3
Dependent Claim 33 words
The device according to claim 1 wherein each of the first and second jaw arms includes at least one groove along an inner face of each of the first and second jaw arms.
Claim 4
Dependent Claim 17 words
The device according to claim 1 wherein each of the first and second jaw arms is smooth.
Claim 5
Dependent Claim 17 words
The device according to claim 1 wherein each of the first and second jaw arms is circular.
Claim 6
Dependent Claim 17 words
The device according to claim 1 wherein each of the first and second jaw arms is semicircular.
Claim 7
Dependent Claim 17 words
The device according to claim 1 wherein each of the first and second jaw arms is linear.
Claim 8
Dependent Claim 17 words
The device according to claim 1 wherein each of the first and second jaw arms is malleable.
Claim 9
Dependent Claim 11 words
The device according to claim 1 further comprising a cutting mechanism.
Claim 10
Dependent Claim 17 words
The device according to claim 8 wherein the cutting mechanism is a selectively retractable and advanceable blade.
Claim 11
Dependent Claim 17 words
The device according to claim 1 wherein each of the first and second jaw arms includes serrations.
Claim 12
Dependent Claim 23 words
The device according to claim 1 comprising a plurality of solution infusion openings defined along each of the first and second jaw arms.
Claim 13
Dependent Claim 19 words
The device according to claim 1 wherein each of the first and second jaw arms includes a porous surface.
Claim 14
Dependent Claim 21 words
The device according to claim 1 wherein the device has a proximal and distal end, the proximal end including finger holes.
Claim 15
Dependent Claim 28 words
The device according to claim 13 wherein the device is selected from cutting biopsy forceps, endoscopic forceps, dissecting forceps, traumatic forceps, atraumatic forceps, and flexible endoscopic grasping forceps.
Claim 16
Dependent Claim 22 words
The device according to claim 14 wherein the forceps are endoscopic forceps, and the forceps are sized for passing through a trocar.
Claim 17
Independent Claim 169 words
A method of manipulating tissue using an electrosurgical device, the method comprising: selecting an electrosurgical instrument comprising: a. a first and second jaw arm forming a device jaw, each jaw arm including a solution delivery channel passing through each jaw arm; b. at least one solution infusion opening on each jaw arm, the solution infusion opening being in communication with the solution delivery channel to permit passage of an electrically conductive solution through the infusion openings from each jaw arm; and c. an electrical conductor for conducting electrical energy to the electrically conductive solution; supplying an electrolytic solution to the at least one solution infusion opening of each of the first and second jaw arms; supplying electrical energy from an electrical energy source to the solution, wherein the electrical energy is sufficient to affect tissue; and manipulating tissue with the first and second jaw arms at least in part while solution is in contact with the tissue along the jaw arms and electrical energy is supplied to the solution.
Claim 18
Independent Claim 169 words
A method of manipulating tissue using an electrosurgical device, the method comprising: selecting an electrosurgical instrument comprising: a. a first and second jaw arm forming a device jaw, each jaw arm including a solution delivery channel passing through each jaw arm; b. at least one solution infusion opening on each jaw arm, the solution infusion opening being in communication with the solution delivery channel to permit passage of an electrically conductive solution through the infusion openings from each jaw arm; and c. an electrical conductor for conducting electrical energy to the electrically conductive solution; supplying an electrolytic solution to the at least one solution infusion opening of each of the first and second jaw arms; supplying electrical energy from an electrical energy source to the solution, wherein the electrical energy is sufficient to affect tissue; and manipulating tissue with the first and second jaw arms at least in part while solution is in contact with the tissue along the jaw arms and electrical energy is supplied to the solution.
Claim 19
Dependent Claim 17 words
The method according to claim 16 wherein each of the first and second jaw arms is malleable.
Claim 20
Dependent Claim 14 words
The method according to claim 16 wherein the device further comprises a cutting mechanism.
Claim 21
Dependent Claim 26 words
The method according to claim 16 wherein the device includes a plurality of solution infusion openings defined along each of the first and second jaw arms.
Claim 22
Dependent Claim 19 words
The method according to claim 16 wherein each of the first and second jaw arms includes a porous surface.
Claim 23
Dependent Claim 28 words
The method according to claim 16 wherein the device is selected from cutting biopsy forceps, endoscopic forceps, dissecting forceps, traumatic forceps, atraumatic forceps, and flexible endoscopic grasping forceps.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2005-08-26 2006-02-25 2006-08-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2009-08-26 2010-02-25 2010-08-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2013-08-26 2014-02-25 2014-08-27 $7700.00 Window Closed / Lapsed

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