US6024748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Singleshot anastomosis instrument with detachable loading unit and method
Assignee: United States Surgical Corp
•
Filing: 1997-06-17
•
Granted: 2000-02-15
•
Expires: 2017-06-17
Abstract
Abstract There is disclosed a surgical instrument and loading unit for performing an anastomosis of first and second blood vessels. The surgical instrument includes a handle assembly and a body portion extending distally from the handle assembly. The detachable loading unit includes an anvil releasably engagable with a distal end of the body portion and having a plurality of fasteners disposed in channels about the circumference of a distal end of the anvil. A pusher is slidably mounted over the anvil such that distal movement of the pusher in response to actuation of the handle assembly cams the fasteners between the anvil and a distal end of the pusher to simultaneously crimp the fasteners about tissue. A method of performing an anastomosis is also disclosed and includes positioning a first vessel in the loading unit and partially inserting the first vessel through an opening in a second vessel. The surgical instrument is subsequently attached to the loading unit and the handle assembly is actuated to crimp fasteners about the first and second vessels to form an anastomosis.
Inventors
- 👤 Scott E. Manzo
- 👤 Richard D. Gresham
- 👤 Kevin Sniffin
- 👤 Peter W.J. Hinchliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/1152; A61B17/12; A61B17/128; A61B17/1285; A61B17/08; A61B17/083; A61B2017/1107; A61B2017/1135
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
74 words
A detachable loading unit for use with a surgical fastener apparatus comprising: a) a generally cylindrical anvil member having structure for releasably engaging a portion of a surgical fastener apparatus; b) a plurality of surgical clips circumferentially disposed on the anvil member; and c) a pusher coaxially mounted with respect to the anvil member such that the clips are held between a distal end of the anvil and a distal end of the pusher.
Claim 2
Dependent Claim
74 words
A detachable loading unit for use with a surgical fastener apparatus comprising: a) a generally cylindrical anvil member having structure for releasably engaging a portion of a surgical fastener apparatus; b) a plurality of surgical clips circumferentially disposed on the anvil member; and c) a pusher coaxially mounted with respect to the anvil member such that the clips are held between a distal end of the anvil and a distal end of the pusher.
Claim 3
Dependent Claim
25 words
The loading unit as recited in claim 1, wherein the anvil member and pusher define a passage for receipt of a segment of vascular tissue.
Claim 4
Dependent Claim
22 words
The loading unit as recited in claim 1, wherein the pusher is formed of a pair of pusher halves pivotally connected together.
Claim 5
Dependent Claim
22 words
The loading unit as recited in claim 3, wherein the anvil member is formed as pair of anvil halves pivotably connected together.
Claim 6
Dependent Claim
21 words
The loading unit as recited in claim 4, wherein the pusher halves and the anvil halves pivot about a common axis.
Claim 7
Dependent Claim
23 words
The loading unit as recited in claim 4, further comprising a latch mechanism for releasably retaining the anvil halves and pusher halves together.
Claim 8
Dependent Claim
44 words
The loading unit as recited in claim 1, further comprising a locking disk positionable about a proximal end of the anvil member and against a proximal end of the pusher member such that the clips are retained between the anvil member and the pusher.
Claim 9
Dependent Claim
23 words
The loading unit as recited in claim 1, wherein the pusher includes structure for engagement with corresponding structure on the surgical fastener apparatus.
Claim 10
Dependent Claim
23 words
The loading unit as recited in claim 1, wherein distal movement of the pusher relative to the anvil member simultaneously deforms the clips.
Claim 11
Dependent Claim
26 words
The loading unit as recited in claim 1, wherein the surgical clips are positioned within longitudinal channels formed in an outer surface of the anvil member.
Claim 12
Dependent Claim
54 words
A detachable loading unit for use with a surgical fastener apparatus comprising: a) an anvil member releasably engagable with a portion of a surgical apparatus; and b) a plurality of surgical clips circumferentially disposed on the anvil member, wherein the anvil member defines a bore for receipt of a section of vascular tissue therein.
Claim 13
Dependent Claim
54 words
A detachable loading unit for use with a surgical fastener apparatus comprising: a) an anvil member releasably engagable with a portion of a surgical apparatus; and b) a plurality of surgical clips circumferentially disposed on the anvil member, wherein the anvil member defines a bore for receipt of a section of vascular tissue therein.
Claim 14
Dependent Claim
24 words
The loading unit as recited in claim 11, wherein leg portions of the plurality of surgical clips are directed radially outwardly of the bore.
Claim 15
Dependent Claim
48 words
The loading unit as recited in claim 11, wherein a first end of the bore is open to a distal end of the anvil member and a second end of the bore forms an exit in the anvil member distal to the proximal end of the anvil member.
Claim 16
Dependent Claim
25 words
The loading unit as recited in claim 11, wherein a portion of the anvil member defining the bore is formed as halves pivotally connected together.
Claim 17
Dependent Claim
26 words
The loading unit as recited in claim 11, further comprising a pusher coaxially mounted about the anvil, the pusher and the anvil member defining the bore.
Claim 18
Dependent Claim
55 words
A detachable loading unit for use with a surgical fastener apparatus comprising: a) a fastener support removably engagable with a portion of a surgical fastener apparatus; and b) a plurality of surgical clips circumferentially disposed on the fastener support, wherein each clip of the plurality of surgical clips is an atraumatic non-tissue penetrating surgical clip.
Claim 19
Dependent Claim
55 words
A detachable loading unit for use with a surgical fastener apparatus comprising: a) a fastener support removably engagable with a portion of a surgical fastener apparatus; and b) a plurality of surgical clips circumferentially disposed on the fastener support, wherein each clip of the plurality of surgical clips is an atraumatic non-tissue penetrating surgical clip.
Claim 20
Dependent Claim
23 words
The loading unit as recited in claim 16, wherein each surgical clip is positioned within a longitudinal channel formed in the fastener support.
Claim 21
Dependent Claim
30 words
The loading unit as recited in claim 16, wherein each surgical clip includes at least one leg which is oriented to point substantially radially outward relative to the fastener support.
Claim 22
Dependent Claim
18 words
The loading unit as recited in claim 18, wherein each leg terminates in an atraumatic non-tissue penetrating tip.
Claim 23
Dependent Claim
26 words
The loading unit as recited in claim 16, wherein the fastener support includes a first camming surface against which the plurality of surgical clips are deformed.
Claim 24
Dependent Claim
55 words
The loading unit as recited in claim 20 further comprising a fastener camming member slidably mounted on the fastener support, the fastener camming member including a second camming surface such that movement of the fastener camming member relative to the fastener support deforms the plurality of surgical clips between the first and second camming surfaces.
Claim 25
Dependent Claim
24 words
The loading unit as recited in claim 16, wherein the fastener support defines a bore for receipt of a segment of tubular tissue therein.
Claim 26
Dependent Claim
19 words
The loading unit as recited in claim 16, wherein the fastener support is formed as halves pivotably connected together.
Claim 27
Dependent Claim
102 words
A surgical instrument comprising: a) a handle assembly; b) an anvil support extending distally from the handle assembly; c) an actuator movable with respect to the anvil support; and d) a loading unit having: i) an anvil removably supported on a distal end of the anvil support; ii) a plurality of surgical clips circumferentially disposed about the anvil member; and iii) a pusher movable relative to the anvil member and engagable with the actuator, wherein movement of the actuator relative to the anvil support simultaneously deforms the plurality of surgical clips between the anvil member and a distal end of the pusher.
Claim 28
Dependent Claim
102 words
A surgical instrument comprising: a) a handle assembly; b) an anvil support extending distally from the handle assembly; c) an actuator movable with respect to the anvil support; and d) a loading unit having: i) an anvil removably supported on a distal end of the anvil support; ii) a plurality of surgical clips circumferentially disposed about the anvil member; and iii) a pusher movable relative to the anvil member and engagable with the actuator, wherein movement of the actuator relative to the anvil support simultaneously deforms the plurality of surgical clips between the anvil member and a distal end of the pusher.
Claim 29
Dependent Claim
38 words
The surgical instrument as recited in claim 24, further comprising a slider mechanism movable between a first position remote from the anvil and a second position firmly affixing the anvil to the distal end of the anvil support.
Claim 30
Dependent Claim
22 words
The surgical instrument as recited in claim 24, wherein the actuator includes at least one handle movably mounted to the handle assembly.
Claim 31
Dependent Claim
44 words
The surgical instrument as recited in claim 26, further comprising a lockout button movably mounted to the housing and movable between a first position blocking movement of the at least one handle and a second position allowing movement of the at least one handle.
Claim 32
Dependent Claim
20 words
The surgical instrument as recited in claim 24, wherein the anvil defines a passage for receipt of a blood vessel.
Claim 33
Dependent Claim
31 words
The surgical instrument as recited in claim 28, further comprising a latch mechanism on the anvil and actuable from the handle assembly to release the blood vessel from within the passage.
Claim 34
Independent Claim
174 words
A method for anastomosis of first and second tubular tissues comprising: a) providing a loading unit having an anvil member defining a passage therethrough for receipt of a first tubular tissue, a plurality of surgical clips having at least one leg with an atraumatic tip positioned on the anvil and a pusher axially movable relative to the anvil to simultaneously deform the plurality of surgical clips; b) positioning a first tubular tissue through the passage and everting a first end of the first tubular tissue over a distal end of the anvil and the at least one leg; c) inserting the distal end of the anvil and everted first end of first tubular tissue through an opening formed in a second tubular tissue; d) engaging the distal end of a surgical instrument with a proximal end of the anvil; and e) actuating the surgical instrument to move the pusher distally such that the plurality of surgical clips are crimped about the first and second tubular tissues without piercing the first and second tubular tissues.
Claim 35
Independent Claim
174 words
A method for anastomosis of first and second tubular tissues comprising: a) providing a loading unit having an anvil member defining a passage therethrough for receipt of a first tubular tissue, a plurality of surgical clips having at least one leg with an atraumatic tip positioned on the anvil and a pusher axially movable relative to the anvil to simultaneously deform the plurality of surgical clips; b) positioning a first tubular tissue through the passage and everting a first end of the first tubular tissue over a distal end of the anvil and the at least one leg; c) inserting the distal end of the anvil and everted first end of first tubular tissue through an opening formed in a second tubular tissue; d) engaging the distal end of a surgical instrument with a proximal end of the anvil; and e) actuating the surgical instrument to move the pusher distally such that the plurality of surgical clips are crimped about the first and second tubular tissues without piercing the first and second tubular tissues.
References Cited (Backward Citations)
US2968041A
Cited
GB935490A
Cited
US3232089A
Cited
US3152336A
Cited
US3366301A
Cited
US3519187A
Cited
US3575038A
Cited
US3954108A
Cited
US3856016A
Cited
US3908662A
Cited
US4412539A
Cited
US4166466A
Cited
US4452376A
Cited
US4611595A
Cited
US4325376A
Cited
US4316468A
Cited
US4226242A
Cited
US4152920A
Cited
US4201314A
Cited
US4242902A
Cited
US4299224A
Cited
US4372316A
Cited
US4350160A
Cited
US4466436A
Cited
US4480640A
Cited
US4408603A
Cited
US4368736A
Cited
US4430997A
Cited
US4522207A
Cited
US4979954A
Cited
US4809695A
Cited
US4509518A
Cited
US4425915A
Cited
US4432925A
Cited
USD276650S
Cited
US4534351A
Cited
US4586503A
Cited
US4733664A
Cited
US4929240A
Cited
US4616650A
Cited
US4598711A
Cited
US5122150A
Cited
US4712549A
Cited
US4759364A
Cited
US4700703A
Cited
WO1988001486A1
Cited
US4872874A
Cited
US4821939A
Cited
US5030226A
Cited
US5025779A
Cited
US4930674A
Cited
EP0384647A1
Cited
US4983176A
Cited
US5104395A
Cited
US5403333A
Cited
US5234447A
Cited
US5366462A
Cited
US5346115A
Cited
US5112343A
Cited
US5443198A
Cited
US5188638A
Cited
US5340360A
Cited
US5192288A
Cited
EP0594004A1
Cited
EP0656191A2
Cited
US5354304A
Cited
US5314436A
Cited
US5431668A
Cited
WO1995015715A1
Cited
US5486187A
Cited
US5501698A
Cited
WO1995035065A1
Cited
US5503617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-02-14 | 2003-08-16 | 2004-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-14 | 2007-08-16 | 2008-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-14 | 2011-08-16 | 2012-02-15 | $7700.00 | Window Closed / Lapsed |