US5972002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for surgical ligation
Assignee: Cabot Technology Corp
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Filing: 1998-06-02
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Granted: 1999-10-26
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Expires: 2018-06-02
Abstract
Abstract A medical instrument for ligation of tissue and anatomical structures, including fallopian tubes comprises at least two slideable shafts concentrically disposed relative to each other. A first shaft has a tissue receiving recess into which tissue is retracted by a grasper. The grasper is disposed on the end of a second shaft that is extendible from the first shaft. A ring retainer on the second or a third shaft can hold one or more elastic rings that are displaceable by the instrument around tissue extending from the tissue receiving recess. The rings are held on a tapered or necked down part of the instrument so that the rings contribute little or nothing to the largest outer diameter (OD) of the portion of the instrument that is inserted into a patient's body. Because the ring or rings do not contribute to the OD of the instrument, the instrument may be constructed to fit within insertion channels of 5 mm or less.
Inventors
- 👤 Jeff Bark
- 👤 Frank D'Amelio
- 👤 Richard Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:51
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/20; A61F6/206; A61B; A61B17/00; A61B17/12; A61B17/12009; A61B17/12013; A61F6/202; A61F6/204; A61F6/208; A61B17/30; A61B2017/12018
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
130 words
An instrument for ligation of tissue comprising: a first shaft having a distal portion and a proximal portion; a second shaft slideably disposed in the first shaft; a tissue receiving recess at the distal end of the instrument; a grasper slideably disposed in the first shaft and adapted to extend from the instrument to grasp and retract tissue into the tissue receiving recess; a ring retainer for receiving at least one elastic ring, the ring retainer comprising a distal segment of the second shaft, the ring retainer having reduced diameter relative to an adjacent second segment of the second shaft; and a displacement member disposed on the distal end of the first shaft for pushing a ring off the ring retainer and around tissue extending from the tissue receiving recess.
Claim 2
Dependent Claim
130 words
An instrument for ligation of tissue comprising: a first shaft having a distal portion and a proximal portion; a second shaft slideably disposed in the first shaft; a tissue receiving recess at the distal end of the instrument; a grasper slideably disposed in the first shaft and adapted to extend from the instrument to grasp and retract tissue into the tissue receiving recess; a ring retainer for receiving at least one elastic ring, the ring retainer comprising a distal segment of the second shaft, the ring retainer having reduced diameter relative to an adjacent second segment of the second shaft; and a displacement member disposed on the distal end of the first shaft for pushing a ring off the ring retainer and around tissue extending from the tissue receiving recess.
Claim 3
Dependent Claim
58 words
The instrument of claim 1 wherein at least one of the ring retainer and the distal portion of the first shaft are expandable radially, the expansion allowing the slideable displacement member disposed on the distal end of the first shaft to push a ring off the ring retainer and around tissue extending out of the tissue receiving recess.
Claim 4
Dependent Claim
15 words
The instrument of claim 1 wherein the grasper is slideably disposed in the second shaft.
Claim 5
Dependent Claim
47 words
The instrument of claim 2 wherein the tissue receiving recess is disposed in a distal portion of the second shaft extendible from the first shaft, said extendible portion including a generally funnel-shaped section of tubing, with the ring retainer being disposed on the neck of the funnel.
Claim 6
Dependent Claim
16 words
The instrument of claim 2 wherein the distal portion of the first shaft is expandable radially.
Claim 7
Dependent Claim
25 words
The instrument of claim 5 wherein at least one relief slot is included in the expandable portion of the first shaft to facilitate its expansion.
Claim 8
Dependent Claim
12 words
The instrument of claim 2 wherein the ring retainer is expandable radially.
Claim 9
Dependent Claim
21 words
The instrument of claim 7 further comprising an inner tube slideably disposed in the second shaft for expanding the ring retainer.
Claim 10
Dependent Claim
19 words
The instrument of claim 7 wherein the ring retainer includes at least one relief slot to facilitate its expansion.
Claim 11
Dependent Claim
46 words
The instrument of claim 2 wherein the distal portion of the second shaft has a flared region of greater diameter than the distal end of the first shaft so as to expand the distal portion of the first shaft when the second shaft is pulled therein.
Claim 12
Dependent Claim
19 words
The instrument of claim 1 wherein the tissue receiving recess is in the distal end of the first shaft.
Claim 13
Dependent Claim
19 words
The instrument of claim 1 wherein the tissue receiving recess is in the distal end of the second shaft.
Claim 14
Dependent Claim
18 words
The instrument of claim 1 wherein the grasper is disposed on the distal end of the second shaft.
Claim 15
Dependent Claim
50 words
The instrument of claim 13 wherein the grasper comprises a notch disposed in the distal end of the second shaft, the notch being adapted to capture and retract tissue within the tissue receiving recess, and the ring retainer being located on a portion of the second shaft proximal the notch.
Claim 16
Dependent Claim
21 words
The instrument of claim 14 further wherein the distal end of the second shaft is adapted to cut or pierce tissue.
Claim 17
Dependent Claim
29 words
The instrument of claim 14 further comprising a latching mechanism disposed on the second shaft proximal the notch, the latching mechanism being closeable over the opening of the notch.
Claim 18
Dependent Claim
31 words
The instrument of claim 14 wherein the latch is engageable with the distal end of the first shaft to latch over the notch during retraction of tissue into the first shaft.
Claim 19
Dependent Claim
30 words
The instrument of claim 14 wherein the distal end includes a channel adapted to receive a section of fallopian tube during retraction of the tube into the tissue receiving recess.
Claim 20
Dependent Claim
17 words
The instrument of claim 1 wherein the distal end of the first shaft comprises the displacement member.
Claim 21
Dependent Claim
26 words
The instrument of claim 1 wherein the displacement member comprises a blunted distal end of the first shaft for pushing a ring from the ring retainer.
Claim 22
Dependent Claim
10 words
The instrument of claim 1 wherein the grasper comprises forceps.
Claim 23
Dependent Claim
27 words
The instrument of claim 1 further comprising a safety linkage disposed proximal to the grasper for preventing overly forcefully retraction of tissue into the tissue receiving recess.
Claim 24
Dependent Claim
19 words
The instrument of claim 1 further comprising a means for locking the first shaft relative to the second shaft.
Claim 25
Dependent Claim
94 words
An instrument for ligation comprising: a ring retainer located proximally to a tissue receiving recess, the tissue receiving recess being disposed in the end of an elongate element; a grasper for retracting tissue within the tissue receiving recess disposed proximal the recess and extendible therefrom; a displacement member slideably disposed proximal to the ring retainer and adapted to displace a ring placed on the ring retainer off the ring retainer and around tissue extending from the tissue receiving recess, the displacement member being radially expandable over the exterior surface defining the tissue receiving recess.
Claim 26
Dependent Claim
94 words
An instrument for ligation comprising: a ring retainer located proximally to a tissue receiving recess, the tissue receiving recess being disposed in the end of an elongate element; a grasper for retracting tissue within the tissue receiving recess disposed proximal the recess and extendible therefrom; a displacement member slideably disposed proximal to the ring retainer and adapted to displace a ring placed on the ring retainer off the ring retainer and around tissue extending from the tissue receiving recess, the displacement member being radially expandable over the exterior surface defining the tissue receiving recess.
Claim 27
Dependent Claim
95 words
An instrument for ligation comprising: a ring retainer located proximal to a tissue receiving recess, the tissue receiving recess disposed in the end of an elongate element; a grasper for retracting tissue within the tissue receiving recess disposed proximal to the recess and extendible therefrom; the ring retainer being expandable from a first unexpanded condition to a second, radially expanded condition, a displacement member being slideably disposed on the instrument so that it may displace a ring held on the ring retainer in the second expanded condition around tissue extending from the tissue receiving recess.
Claim 28
Dependent Claim
95 words
An instrument for ligation comprising: a ring retainer located proximal to a tissue receiving recess, the tissue receiving recess disposed in the end of an elongate element; a grasper for retracting tissue within the tissue receiving recess disposed proximal to the recess and extendible therefrom; the ring retainer being expandable from a first unexpanded condition to a second, radially expanded condition, a displacement member being slideably disposed on the instrument so that it may displace a ring held on the ring retainer in the second expanded condition around tissue extending from the tissue receiving recess.
Claim 29
Dependent Claim
151 words
An instrument for ligation of tissue comprising: an outer shaft having a distal portion and a proximal portion; an inner shaft slideably disposed in the outer shaft; a tissue receiving recess at the distal end of the inner shaft; a grasper slideably disposed in the inner shaft and adapted to extend from the instrument to grasp and retract tissue into the tissue receiving recess; a ring retainer for receiving at least one elastic ring, the ring retainer comprising a first distal segment of the inner shaft, the ring retainer having reduced diameter relative to an adjacent second more distal second segment of the inner shaft; the outer shaft being adapted to expand to receive the second segment of the inner shaft; and a displacement member disposed on the distal end of the outer shaft for pushing a ring off the ring retainer and around tissue extending from the tissue receiving recess.
Claim 30
Dependent Claim
151 words
An instrument for ligation of tissue comprising: an outer shaft having a distal portion and a proximal portion; an inner shaft slideably disposed in the outer shaft; a tissue receiving recess at the distal end of the inner shaft; a grasper slideably disposed in the inner shaft and adapted to extend from the instrument to grasp and retract tissue into the tissue receiving recess; a ring retainer for receiving at least one elastic ring, the ring retainer comprising a first distal segment of the inner shaft, the ring retainer having reduced diameter relative to an adjacent second more distal second segment of the inner shaft; the outer shaft being adapted to expand to receive the second segment of the inner shaft; and a displacement member disposed on the distal end of the outer shaft for pushing a ring off the ring retainer and around tissue extending from the tissue receiving recess.
Claim 31
Dependent Claim
19 words
The instrument of claim 26 further comprising a means for locking the outer shaft relative to the inner shaft.
Claim 32
Dependent Claim
148 words
An instrument for ligation of tissue comprising: an outer shaft having a distal portion and a proximal portion; an intermediate shaft slideably disposed in the outer shaft; a tissue receiving recess at the distal end of the intermediate shaft; a grasper slideably disposed in the inner shaft adapted to extend from the instrument to grasp and retract tissue into the tissue receiving recess; a ring retainer for receiving at least one elastic ring, the ring retainer comprising a distal segment of the intermediate shaft having reduced diameter relative to an adjacent distal segment of the intermediate shaft, the ring retainer being radially expandable; an inner shaft slideably disposed in the intermediate shaft for expandably engaging the ring retainer; and a displacement member disposed on the distal end of the outer shaft for pushing a ring off the ring retainer and around tissue extending from the tissue receiving recess.
Claim 33
Dependent Claim
148 words
An instrument for ligation of tissue comprising: an outer shaft having a distal portion and a proximal portion; an intermediate shaft slideably disposed in the outer shaft; a tissue receiving recess at the distal end of the intermediate shaft; a grasper slideably disposed in the inner shaft adapted to extend from the instrument to grasp and retract tissue into the tissue receiving recess; a ring retainer for receiving at least one elastic ring, the ring retainer comprising a distal segment of the intermediate shaft having reduced diameter relative to an adjacent distal segment of the intermediate shaft, the ring retainer being radially expandable; an inner shaft slideably disposed in the intermediate shaft for expandably engaging the ring retainer; and a displacement member disposed on the distal end of the outer shaft for pushing a ring off the ring retainer and around tissue extending from the tissue receiving recess.
Claim 34
Dependent Claim
20 words
The instrument of claim 28 further comprising a means for locking the outer shaft shaft relative to the intermediate shaft.
Claim 35
Dependent Claim
140 words
An instrument for ligation of tissue comprising: an outer shaft having a distal portion and a proximal portion; an inner shaft slideably disposed in the outer shaft; a tissue receiving recess at the distal end of the outer shaft; a grasper slideably disposed on the end of the inner shaft and adapted to extend from the instrument to grasp and retract tissue into the tissue receiving recess; a ring retainer for receiving at least one elastic ring, the ring retainer comprising a first distal segment of the inner shaft, the ring retainer disposed adjacent a second more distal second segment of the inner shaft, the second segment comprising the grasper; and a displacement member disposed on the distal end of the outer shaft for pushing a ring off the ring retainer and around tissue extending from the tissue receiving recess.
Claim 36
Dependent Claim
140 words
An instrument for ligation of tissue comprising: an outer shaft having a distal portion and a proximal portion; an inner shaft slideably disposed in the outer shaft; a tissue receiving recess at the distal end of the outer shaft; a grasper slideably disposed on the end of the inner shaft and adapted to extend from the instrument to grasp and retract tissue into the tissue receiving recess; a ring retainer for receiving at least one elastic ring, the ring retainer comprising a first distal segment of the inner shaft, the ring retainer disposed adjacent a second more distal second segment of the inner shaft, the second segment comprising the grasper; and a displacement member disposed on the distal end of the outer shaft for pushing a ring off the ring retainer and around tissue extending from the tissue receiving recess.
Claim 37
Dependent Claim
19 words
The instrument of claim 30 further comprising a means for locking the outer shaft relative to the inner shaft.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-25 | 2003-04-26 | 2003-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-25 | 2007-04-26 | 2007-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-25 | 2011-04-26 | 2011-10-26 | $7700.00 | Window Closed / Lapsed |