US4907591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument for establishing compression anastomosis
Assignee: Pfizer Hospital Products Group Inc
•
Filing: 1988-03-29
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Granted: 1990-03-13
•
Expires: 2008-03-29
Abstract
Abstract A surgical instrument for installing a plurality of interlocking coupling members forming a compression anastomosis assembly, particularly suitable for use in achieving anastomosis of a resected tubular organ, with the instrument having a cutting portion designed and configured for rotational movement as the cutter advances to perform its intended functions of severing tissue and at least a portion of one of the members of the assembly. Also disclosed is a dual locking feature for alternately locking a driving component and an aligning component against movement where, in a first mode, the aligning component is operative when the driving component is locked and, in a second mode, the driving component is operative when the aligning component is locked. Additionally disclosed is a unique aligning component for aligning and exerting a compressive force on members of an associated coupling assembly. Lastly, there is disclosed a surgical instrument capable of assuming a variety of configurations to accommodate a number of anatomical orientations and operating situations.
Inventors
- 👤 Alfred V. Vasconcellos
- 👤 Ionel E. Teodorescu
- 👤 Joel W. Cummings
- 👤 Dean E. McBeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:12
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/1155
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
79 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore and including driver means and cutter means, means for imparting rotational movement to said cutter means, means for supporting the coupling members of said assembly, means for aligning said coupling members and means for driving said driver means for urging said coupling members into locking engagement and advancing and rotating said cutter means.
Claim 2
Independent Claim
79 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore and including driver means and cutter means, means for imparting rotational movement to said cutter means, means for supporting the coupling members of said assembly, means for aligning said coupling members and means for driving said driver means for urging said coupling members into locking engagement and advancing and rotating said cutter means.
Claim 3
Independent Claim
110 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for imparting rotational movement to said cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members; and means for driving said driver means for urging said coupling members into locking engagement and advancing and rotating said cutter means.
Claim 4
Independent Claim
110 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for imparting rotational movement to said cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members; and means for driving said driver means for urging said coupling members into locking engagement and advancing and rotating said cutter means.
Claim 5
Dependent Claim
19 words
The device according to claim 2 wherein said recess includes means for guiding the movement of said driver means.
Claim 6
Dependent Claim
33 words
The device according to claim 3 wherein said guiding means includes at least one channel disposed in said recess, with said channel slidingly engaging at least one tab disposed on said driver means.
Claim 7
Dependent Claim
22 words
The device according to claim 4 wherein said tab further includes means for disengaging said device from said assembly after assembly installation.
Claim 8
Dependent Claim
19 words
The device according to claim 5 wherein said disengaging means comprises at least one rib disposed on said tab.
Claim 9
Dependent Claim
20 words
The device according to claim 2 wherein said rotational means comprises ramp means for engaging and guiding complementary projecting means.
Claim 10
Dependent Claim
48 words
The device according to claim 7 wherein said ramp means includes at least one angled surface disposed in said recess and said projecting means includes at least one land disposed on said driver means, with said angled surface and said land being designed and configured for gliding coaction.
Claim 11
Dependent Claim
48 words
The device according to claim 7 wherein said ramp means includes at least one angled surface disposed on said driver means and said projecting means includes at least one land disposed in said recess, with said angled surface and said land being designed and configured for gliding coaction.
Claim 12
Dependent Claim
25 words
The device according to claim 2 further including one or more locking means for alternately locking said driving means and said aligning means against movement.
Claim 13
Dependent Claim
20 words
The device according to claim 10 wherein said locking means is adapted for movement between first and second locking positions.
Claim 14
Dependent Claim
40 words
The device according to claim 11 wherein said locking means in a first position releasably locks said driving means against movement while simultaneously allowing operation of said aligning means, said driving means being inoperative while said aligning means is operational.
Claim 15
Dependent Claim
40 words
The device according to claim 11 wherein said locking means in a second position releasably locks said aligning means against movement while simultaneously allowing operation of said driving means, said aligning means being inoperative while said driving means is operational.
Claim 16
Dependent Claim
44 words
The device according to claim 2 wherein said driving means includes a conduit slidably disposed in said bore, a first end of said conduit being adapted to engage a lever and a second end of said conduit being adapted to engage said driver means.
Claim 17
Dependent Claim
56 words
The device according to claim 2 wherein said aligning means comprises a core having a first end coupled to one of said coupling members and a second end coupled to a movable element, a knob coupled to said element, and means disposed in said handle portion for guiding the movement of said element and said knob.
Claim 18
Dependent Claim
42 words
The device according to claim 15 wherein said guide means includes at least one elongated slot cooperating with at least one pin coupling said element and said knob adapted for positioning said one coupling member relative to the other said coupling members.
Claim 19
Dependent Claim
26 words
The device according to claim 16 wherein said guide means further includes means for applying a compressive force between at least two of said coupling members.
Claim 20
Dependent Claim
28 words
The device according to claim 17 wherein said compressive force is achieved through a coaction of said pin and a curve disposed in one end of said slot.
Claim 21
Dependent Claim
38 words
The device according to claim 18 wherein said slot further includes one or more notches disposed along said slot for releasably locking said one coupling member in one or more positions relative to the other said coupling members.
Claim 22
Dependent Claim
19 words
The device according to claim 15 wherein said core is slidably disposed in a conduit disposed in said bore.
Claim 23
Dependent Claim
15 words
The device according to claim 20 wherein said conduit is slidably disposed in said core.
Claim 24
Dependent Claim
13 words
The device according to claim 2 wherein said intermediate portion is substantially straight.
Claim 25
Independent Claim
111 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members; means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means; and locking means for alternately locking said driving means and said aligning means.
Claim 26
Independent Claim
111 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members; means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means; and locking means for alternately locking said driving means and said aligning means.
Claim 27
Dependent Claim
20 words
The device according to claim 23 wherein said locking means is adapted for movement between first and second locking positions.
Claim 28
Dependent Claim
40 words
The device according to claim 24 wherein said locking means in a first position releasably locks said driving means against movement while simultaneously allowing operation of said aligning means, said driving means being inoperative while said aligning means is operational.
Claim 29
Dependent Claim
40 words
The device according to claim 24 wherein said locking means in a second position releasably locks said aligning means against movement while simultaneously allowing operation of said driving means, said aligning means being inoperative while said driving means is operational.
Claim 30
Independent Claim
188 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members, said aligning means comprising a core having a first end coupled to one of said coupling members and a second end coupled to a movable element, a knob coupled to said element, and guiding means disposed in said handle portion for directing the movement of said element and said knob for positioning said one coupling member relative to other said coupling members, with said guiding means including at least one elongated slot cooperating with at least one pin coupling said element and said knob for slidable conjoint axial movement; and means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means.
Claim 31
Independent Claim
188 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members, said aligning means comprising a core having a first end coupled to one of said coupling members and a second end coupled to a movable element, a knob coupled to said element, and guiding means disposed in said handle portion for directing the movement of said element and said knob for positioning said one coupling member relative to other said coupling members, with said guiding means including at least one elongated slot cooperating with at least one pin coupling said element and said knob for slidable conjoint axial movement; and means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means.
Claim 32
Dependent Claim
26 words
The device according to claim 27 wherein said guiding means further includes means for applying a compressive force between at least two of said coupling members.
Claim 33
Independent Claim
216 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members, said aligning means comprising a core having a first end coupled to one of said coupling members and a second end coupled to a movable element, a knob coupled to said element, and guiding means disposed in said handle portion for directing the movement of said element and said knob positioning said one coupling member relative to the other said coupling members, with said guiding means including at least one elongated slot cooperating with at least one pin coupling said element and said knob and further including means for applying a compressive force between at least two of said coupling members through a coaction of said pin and a curve disposed in one end of said slot; and means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means.
Claim 34
Independent Claim
216 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members, said aligning means comprising a core having a first end coupled to one of said coupling members and a second end coupled to a movable element, a knob coupled to said element, and guiding means disposed in said handle portion for directing the movement of said element and said knob positioning said one coupling member relative to the other said coupling members, with said guiding means including at least one elongated slot cooperating with at least one pin coupling said element and said knob and further including means for applying a compressive force between at least two of said coupling members through a coaction of said pin and a curve disposed in one end of said slot; and means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means.
Claim 35
Independent Claim
216 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members, said aligning means comprising a core having a first end coupled to one of said coupling members and a second end coupled to a movable element, a knob coupled to said element, and guiding means disposed in said handle portion for directing the movement of said element and said knob positioning said one coupling member relative to the other said coupling members, with said guiding means including at least one elongated slot cooperating with at least one pin coupling said element and said knob, and with said slot further including one or more notches disposed along said slot for releasably locking said one coupling member in one or more positions relative to the other said coupling members; and said for driving said driver means for urging said coupling members in locking engagement and advancing said cutter means.
Claim 36
Independent Claim
216 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members, said aligning means comprising a core having a first end coupled to one of said coupling members and a second end coupled to a movable element, a knob coupled to said element, and guiding means disposed in said handle portion for directing the movement of said element and said knob positioning said one coupling member relative to the other said coupling members, with said guiding means including at least one elongated slot cooperating with at least one pin coupling said element and said knob, and with said slot further including one or more notches disposed along said slot for releasably locking said one coupling member in one or more positions relative to the other said coupling members; and said for driving said driver means for urging said coupling members in locking engagement and advancing said cutter means.
Claim 37
Independent Claim
109 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members; means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means; and locking means for releasably locking said aligning means against movement.
Claim 38
Independent Claim
109 words
A device for installing a coupling assembly having a plurality of coupling members for compression anastomosis of a tubular structure comprising a body having a bore located therein and including a handle portion, an intermediate portion and a head portion, with said head portion having a recess intersecting said bore; said recess being dimensioned and configured to include therein driver means and cutter means; means for supporting the coupling members of said assembly; means for aligning said coupling members; means for driving said driver means for urging said coupling members into locking engagement and advancing said cutter means; and locking means for releasably locking said aligning means against movement.
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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) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |