Surgery – Instruments – Sutureless closure
Reexamination Certificate
1999-04-19
2001-01-30
Buiz, Michael (Department: 3731)
Surgery
Instruments
Sutureless closure
Reexamination Certificate
active
06179863
ABSTRACT:
BACKGROUND OF THE INVENTION
In U.S. Pat. No. 5,021,059, which has been assigned to the same assignee as this invention, there is disclosed a closure device and method of use for sealing a small incision or puncture in tissue separating one portion of the body of a living being from another portion thereof, e.g., a percutaneous puncture in a artery, to prevent the flow of a body fluid, e.g., blood, through the puncture. The closure device is arranged to be used with (deployed by) an instrument which comprises a carrier in the form of a tubular member. The tubular member has a proximally located portion and a distally located portion. The latter includes an open free end arranged to be introduced through the incision or puncture. The proximately located portion of the tubular member is arranged to be located out of the body of the being when the distally located portion is extended through the incision or puncture.
The closure device comprises three components, namely, an anchor member, a sealing member, and a filament, e.g., suture. The sealing member is formed of a hemostatic material, e.g., compressed collagen foam. The anchor member includes a tissue engaging portion configured to pass through the puncture in one direction but resistant to passage therethrough in the opposite direction. The sealing member includes a tissue engaging portion. The filament is connected between the anchor member and the sealing member in a pulley-like arrangement so that they may be moved relative to each other by the application of a pulling force on the filament.
The instrument is arranged to expel the anchor member through the puncture, e.g., into the artery, and to draw its tissue engaging portion into engagement with the tissue contiguous with the puncture. The filament extends through the instrument to a point outside the body of the being and is arranged to be drawn in the proximal direction, whereupon the portion of the filament connecting the anchor member and the sealing member causes the tissue engaging portion of the sealing member to move with respect to said anchor member and into engagement with the tissue contiguous with the puncture on the opposite side thereof from said anchor member. This action causes the tissue engaging portion of the sealing member to seal the puncture from the flow of fluid therethrough.
The closure device and deploying instrument in that patent leave something to be desired from the standpoints of effectiveness and efficiency of use.
OBJECTS OF THE INVENTION
Accordingly, it is a general object of this invention to provide a closure device and methods of use which overcomes the disadvantages of the prior art.
It is a further object of this invention to provide a system including a closure, a deploying instrument, and method of use for quickly, easily, safely and effectively sealing a percutaneous puncture in a blood vessel within the body of a living being from another portion.
It is still a further object of this invention to provide devices and methods for enabling one to radiographically image the closure during its placement to seal a percutaneous incision or puncture in a blood vessel and after such placement has been accomplished.
SUMMARY OF THE INVENTION
These and other objects of this invention are achieved by providing a closure for use in a system for sealing a percutaneous incision or puncture in a blood vessel. The system basically comprises carrier means, introducer means, and closure means. The puncture comprises a tract extending through tissue overlying the blood vessel. The closure means comprises anchoring means, sealing means, and filament means. The filament means is connected between the anchoring means and the sealing means. The introducer means comprises a tubular member having a distal free end arranged to be inserted into the puncture tract and through the puncture. The carrier means is arranged to be inserted through the introducer means to expel the anchoring means therefrom and to draw the anchoring means into engagement with the distal free end of the introducer means. The introducer means and the carrier means are arranged to be moved together to draw the anchoring means into engagement with the interior tissue of the blood vessel contiguous with the puncture. The filament means is arranged to pull the anchoring means and the sealing means relative to each other to cause the sealing means to engage tissue contiguous with the puncture outside of the vessel.
In accordance with one aspect of this invention the system includes means and a method of use to enable one to readily determine the location of the wall of the vessel or lumen by the percutaneous introduction of such means into the vessel or lumen. Such means can be used as a part of the system or method to seal the puncture or incision in a vessel or lumen or may be used for other purposes, e.g., it may be used for any application wherein it is desirable to determine the location of a vessel or lumen wall via a percutaneous incision or puncture.
REFERENCES:
patent: 4744364 (1988-05-01), Kensey
patent: 4852568 (1989-08-01), Kensey
patent: 4890612 (1990-01-01), Kensey
Evans Douglas
Kensey Kenneth
Nash John
Buiz Michael
Ceasar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.
Ho (Jackie ) Tan-Uyen T.
Kensey Nash Corporation
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