Medical grafting apparatus and methods
First Claim
1. An anastomosis delivery system for delivering a connector having at least one backwards spike having a bent tip, comprising:
- a hollow guide sheath; and
a hollow, axially slotted section, fitting within said sheath, said section having a flared configuration and an unflared configuration and wherein said axially slotted section is adapted to contain at least a part of said connector and to limit axial motion of said connector when said section is in its unflared configuration.
2 Assignments
0 Petitions
Accused Products
Abstract
Instrumentation for facilitating cutting an opening in a side wall of a body conduit in a patient. A tubular structure defines a lumen and has a sharpened distal end portion configured to cut a section of the body conduit to create the opening. A tissue holding structure is provided which is axially movable within the lumen of the tubular structure. The tissue holding structure includes a piercing portion to permit passage of the tissue holding structure through the body conduit from an entrance side to an exit side thereof. The tissue holding structure also includes a retention member to secure the section of the body conduit to the tissue holding structure during movement of the tissue holding structure to approximate the entrance side of the body conduit with the sharpened distal portion of the tubular structure to enable the sharpened distal structure to cut the body conduit. A connector is also provided for attaching a new length of tubing to the body conduit at the opening made by the cutting.
213 Citations
30 Claims
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1. An anastomosis delivery system for delivering a connector having at least one backwards spike having a bent tip, comprising:
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a hollow guide sheath; and
a hollow, axially slotted section, fitting within said sheath, said section having a flared configuration and an unflared configuration and wherein said axially slotted section is adapted to contain at least a part of said connector and to limit axial motion of said connector when said section is in its unflared configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 17, 18, 20)
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13. An anastomosis delivery system for delivering a connector having at least one backwards spike having a bent tip, comprising:
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a hollow guide sheath;
an apertured inner tube fitting within said sheath; and
a plurality of spike locking elements disposed between said guide sheath and said apertured inner tube, wherein said spike locking elements, when extended, are adapted to grip a part of said anastomosis connector between said inner tube and said locking elements and wherein said apertures are each adapted to receive a said bent tip of said anastomosis connector.
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14. A method of mounting an anastomosis connector having a plurality of bent backwards spikes including bent tips, into a delivery tube, comprising:
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bending back said spikes to point backwards along an axial direction of said connector, away from a graft mounted on said connector;
maintaining said tips in a bent configuration; and
inserting said spikes into a receptacle of said delivery tube by pushing back each spike, using a jig, into said receptacle, and locking said spike tip in said receptacle, which receptacle maintains said tips in a bent configuration.
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15. A rotating punch, comprising:
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a sharp, central guide wire; and
a rotating outer tube having a vascular cutting edge defined by a lip of said tube, wherein said outer tube has an increasing outer diameter, away from said cutting edge.
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16. Apparatus for anastomosis, comprising:
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a delivery system includes conical shaped arrangement of puller spikes; and
a cone shaped body defining an opening at either end, a wide opening, at abase thereof, for receiving said conical arrangement and a narrow opening, at an apex thereof, for insertion into a blood vessel. - View Dependent Claims (19)
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21. A removable graft guide for a graft delivery system, comprising:
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a body removably mounted on said delivery system; and
a guide portion adapted to fit in an aperture in said graft delivery system and prevent contact between a graft inserted through said aperture and damaging parts of said delivery system. - View Dependent Claims (22, 23, 25, 26, 29, 30)
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24. A vessel puller, comprising:
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a shaft adapted to be inserted in a bore of a tubular gaft delivery system having a delivery end;
a vessel engager mounted on one end of the shaft and adapted to engage a tip of a graft; and
a handle attached to another end of said shaft. - View Dependent Claims (27)
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28. A combined hole punching and graft delivery device, comprising:
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a body, having therein at least one recess for receiving a spike of a connector; and
a sharp tip retractable relative to said body, wherein said sharp tip and said body define between them a blood vessel wall receiving area.
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Specification