Abstract: Apparatus for applying at least one row of two-part surgical fasteners to body tissue, each surgical fastener having a pronged fastener portion for piercing body tissue, and an aperture retainer dimensioned and configured for engaged reception of the pronged fastener portion in interference fit therewith for gripping the body tissue therebetween. The apparatus includes means for holding a plurality of the fastener portions in generally aligned relation, means spaced from the fastener portion holding means for gripping body tissue therebetween and for releasably holding a plurality of the retainers in generally aligned relation and positioned opposite the fasteners when the body tissue is positioned therebetween.
Type:
Grant
Filed:
November 14, 1991
Date of Patent:
October 20, 1992
Assignee:
United States Surgical Corporation
Inventors:
David T. Green, Henry Bolanos, Robert J. Geiste, Wayne P. Young, Stephen W. Gerry, Frank M. Rende, III
Abstract: A molded suture retainer is provided for retaining and storing long suture lengths. Both absorbable and nonabsorbable sutures fabricated from natural or synthetic materials can be advantageously retained and stored therein. The retainer is characterized by a wide spiraling oval passageway with minimal convolutions covered by a cover sheet. The length of the passageway is preferably proportional to 1/3 to 1/2 the overall length of the suture to be retained therein. In accordance with the method of the invention, sutures are doubled or tripled over and inserted into the retainer under vacuum. Sutures packaged in accordance with the invention exhibit fewer kinks and bends than prior packaged sutures.
Abstract: A method for repairing tears in fibrocartilage and soft tissue. The clip has a pair of opposed legs formed of rigid biodegradable material. Each leg has at least one barb for easily penetrating the cartilage and soft tissue, and for opposing withdrawal from it. The legs are interconnected by a flexible section that is also biodegradable. The instrument for applying these clips has a pair of opposed jaws, each with at least one notch for holding the barbs of the clip. The jaws are biased apart in a normally open position and are interconnected to an actuating handle. The instrument further includes a device which closes the jaws when the handles are moved a first way relative to one another and opens them when the handles are moved the other way.
Abstract: A semi-bioabsorbable connective tissue prosthesis, e.g., a replacement for the human anterior cruciate ligament, is provided whose stress-strain characteristics closely match those of the natural tissue.
Type:
Grant
Filed:
September 12, 1990
Date of Patent:
September 15, 1992
Assignee:
United States Surgical Corporation
Inventors:
Donald S. Kaplan, John Kennedy, Ross R. Muth
Abstract: An endoscopic or laparoscopic instrumentation kit including at least one obturator and at least two sleeves forming a trocar assembly. The kit may also include a catheter, an endoscopic surgical instrument, tissue-gripping sleeve members and attachment devices for the trocar sleeves. The kit is packaged in a vacuum-formed enclosure having raised walls which correspond in size and shape to the instruments packaged therein for retaining and displaying the instruments.
Type:
Grant
Filed:
March 12, 1991
Date of Patent:
September 8, 1992
Assignee:
United States Surgical Corporation
Inventors:
Andre P. Decarie, David L. Brown, Stanley J. Malinowski, Douglas M. Dunklee
Abstract: A suture is attached to a surgical needle possessing a shank of reduced diameter the butt end of which is rounded. Attachment is accomplished by means of a shrinkable tubing which is fitted about the shank of the needle and an end of the suture, application of heat to the tubing effecting its shrinkage with consequent secure attachment of the needle to the suture. Rounding of the butt end of the needle shank minimizes the possibility that during use, the needle will protrude or rip through the tubing or otherwise compromise the security of the attachment of the needle to the suture.
Type:
Grant
Filed:
October 7, 1991
Date of Patent:
August 18, 1992
Assignee:
United States Surgical Corporation
Inventors:
Herbert W. Korthoff, Richard N. Granger
Abstract: A surgical needle is attached to a spiroid braided suture to provide a combined surgical needle-spiroid braided suture device. A shrinkable tubing is employed to secure the needle to the suture. The tubing shrinks in response to the application of energy, e.g., heat. Attachment parameters may be controlled to provide standard needle attachment or removable needle attachment.
Type:
Grant
Filed:
August 21, 1990
Date of Patent:
July 28, 1992
Assignee:
United States Surgical Corporation
Inventors:
Herbert W. Korthoff, Michael P. Chesterfield, Ilya Koyfman, Matthew E. Hain
Abstract: A pair of dies is disclosed for attaching a surgical needle having a generally cylindrical end portion defining an elongated aperture having a generally circular cross-section and a suture having a generally elongated end portion of generally circular cross-section corresponding in dimension to the elongated aperture of the first needle. Each die has a pair of extensions spaced apart from each other and defines a generally circular crimping surface portion corresponding in dimension and configuration to the generally cylindrical outer surface portion of the needle.
Abstract: A reel-type surgical suture dispenser features an extension member on the suture reel receptacle, there being positioned upon the extension member an upwardly projecting suture-retaining slotted member which facilitates dispensing of the suture and retaining thereon the terminal section of a length of suture withdrawn from the reel.
Abstract: A safety locking device is provided for assuring proper matching relationship between a surgical instrument and a trocar guide tube housing. The safety device is slidably mounted on the elongated portion of the surgical instrument, and includes locking fingers with locking tabs projecting radially inward to releasable a circumferential groove in the surgical instrument elongated portion. The locking fingers include a camming surface to engage a corresponding camming surface associated with an appropriate guide tube housing. As the surgical instrument is inserted into an appropriate guide tube housing, the guide tube housing camming surface engages the locking finger camming surface to disengage the locking tabs from the circumferential groove and permit complete insertion of the instrument. A sleeve surrounds the locking fingers to prevent tampering, and as unlocking tool is provided.
Abstract: A cannula assembly for use in conjunction with insufflatory surgical techniques includes a cannula, a housing mounted on one end of the cannula, and a flapper valve mounted in the housing. The flapper valve includes a valve seat which is situated at an opening formed in the housing, a valve plug which is adapted to engage the valve seat to form a substantially gas tight seal with the valve seat, and a support plate on which the valve plug is mounted and which is biased to pivot the plug into and out of engagement with the valve seat. The valve plug is movable on the support plate so as to be self-aligning with the valve seat when the plug and valve are in engagement. The valve plug is uniquely configured to include a recessed reservoir at the proximal side and surrounded by a circular ridge.
Abstract: A package for surgical sutures and suture-needle assemblies which includes a series of panels foldable about each other to enclose the sutures in an unfolded and elongated condition.
Type:
Grant
Filed:
May 9, 1991
Date of Patent:
July 7, 1992
Assignee:
United States Surgical Corporation
Inventors:
Henry A. Holzwarth, Christopher M. Scanlon
Abstract: A package is disclosed for containing a plurality of combined surgical suture devices, particularly of the double armed type having a pledget and used for cardiovascular surgical procedures. A backing panel has a protective cover adhesively affixed to one side and defines a plurality of straight elongated suture tracks for reception of the flexible suture portion therein. An aperture is positioned at each end of each track to facilitate reception of the flexible suture portion into the track and drawing a vacuum therein to assist drawing the flexible suture portion into the track. Preferred embodiments include separate features such as a foam needle park or an end flap configured to support the suture needles beneath tabs. Still another embodiment includes and end flap which defines pockets to receive the needles. A method for packaging such sutures is also disclosed.
Type:
Grant
Filed:
January 7, 1991
Date of Patent:
June 23, 1992
Assignee:
United States Surgical Corporation
Inventors:
David L. Brown, Henry A. Holzwarth, Craig W. Leary
Abstract: An absorbable, annealed surgical device made from a multi-phase, polymeric composition derived from lactide and glycolide. Preferably, the composition has two phases, both phases are continuous, the first phase has about 0-about 25%m glycolide moieties, the overall composition has up to 45%m glycolide moieties, and the first phase constitutes at least 50% (and preferably not more than about 95%) by weight of the composition. The device has a high distortion temperature, good resistance to hot-wet creep, but yet loses tensile strength in vivo quickly. The composition per se is injection-moldable, can be annealed, and is not brittle.
Type:
Grant
Filed:
August 2, 1990
Date of Patent:
June 23, 1992
Assignee:
United States Surgical Corporation
Inventors:
Donald S. Kaplan, Matthew E. Hermes, Ross R. Muth, John J. Kennedy
Abstract: A needle-suture combination is provided. A shrinkable tubing is employed to secure the needle to the suture. The tubing shrinks in response to heat. Suture materials which are heat labile are desensitized prior to tubing attachment to preserve the integrity of the suture material. Attachment parameters may be controlled to provide standard needle attachment or removable needle attachment.
Abstract: An absorbable coating composition useful for coating sutures, said absorbable coating composition comprising a copolymer derived from (i) the copolymerization of a polyalkylene glycol, glycolide monomer and lactide monomer or (ii) the copolymerization of a polyalkylene glycol and a copolymer of lactide and glycolide and multifilament sutures coated with same.
Abstract: An apparatus and method is disclosed for performing circular anastomosis on body portions, such body portions preferably include at least one tubular organ such as intestines, colons, or the like. The apparatus includes an annular crown-like structure which includes a plurality of elongated sharp resilient members positioned and adapted to pierce and secure the tubular body part in position for attachment to the other body part. An anvil for providing closure in such circular anastomosis and a method of performing such circular anastomosis are also disclosed. A unique anvil for performing such procedures with staples is also disclosed.
Type:
Grant
Filed:
December 14, 1990
Date of Patent:
June 16, 1992
Assignee:
United States Surgical Corporation
Inventors:
Richard N. Granger, Herbert W. Korthoff