Patents by Inventor Alan K. Plyley

Alan K. Plyley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5728110
    Abstract: A laparoscopic stapler with a blocking body is disclosed. The blocking body allows the stapler to be inserted into the abdominal cavity through a cannula and removed therefrom until the staples are fired. When the staples are fired, the blocking body allows the stapler to be removed from the abdominal cavity of the patient through the cannula. After the staples have been fired and the stapler is removed from the abdominal cavity, the blocking body is in a blocking position where it then prevents the stapler from being reinserted through the cannula.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: March 17, 1998
    Assignee: United States Surgical Corporation
    Inventors: Claude A. Vidal, Russell J. Redmond, Alan K. Plyley
  • Patent number: 5706998
    Abstract: A surgical stapler having a supporting frame, including a stationary jaw having an anvil, a movable jaw, a replaceable staple cartridge carried by the movable jaw, a mechanism for approximating the cartridge relative to the anvil, and a mechanism for firing the device so as to crimp the staples against the anvil in a manner to enable the surgeon to substantially simultaneously place one or more rows of surgical staples in organs or tissues. The device includes interrelated, cooperating first and second locking mechanisms for positively preventing refiring if the staple cartridge is spent and for providing a tactile sensation to the surgeon to indicate that a spent staple cartridge is present within the instrument.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: January 13, 1998
    Assignee: United States Surgical Corporation
    Inventors: Alan K. Plyley, Claude A. Vidal, Russell J. Redmond
  • Patent number: 5680983
    Abstract: The present invention provides a staple cartridge assembly adapted for use in a surgical stapler having a cartridge retention portion and an anvil portion which are movable between a closed position and an open position.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 28, 1997
    Assignee: United States Surgical Corporation
    Inventors: Alan K. Plyley, Floyd L. Foslien, John M. Barker, Robert W. Petrich
  • Patent number: 5678748
    Abstract: A surgical stapler for use by a surgeon to place one or more rows of surgical staples in organs or tissue. The stapler is of a character having a supporting frame, a replaceable staple cartridge, an anvil, a mechanism for approximating the cartridge relative to the anvil, and a mechanism for firing the device so as to crimp the staples against the anvil. The device, while at all times permitting approximation of the cartridge relative to the anvil, provides a novel safety mechanism that clearly indicates to the surgeon that the staples have been fired from the staple cartridge and simultaneously disables the device until it is manually reset.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: October 21, 1997
    Assignee: VIR Engineering
    Inventors: Alan K. Plyley, Claude Vidal, Russell J. Redmond
  • Patent number: 5637108
    Abstract: A surgical handle for use with an endoscopic instrument that is insertable into a body cavity insufflated with a gas. The surgical handle includes a housing having a mount that defines an opening for receiving the endoscopic instrument. A first elongated pusher tube is located within the housing and aligned with the mount opening. The pusher tube includes an interior passage that is in fluid communication with the endoscopic instrument. A first actuator moves the pusher tube longitudinally with respect to the mount opening. The interior passage is sized to permit the flow therethrough of insufflation gas escaping from the body cavity up to a predetermined rate, the rate being set at an amount that will not result in deflation of the body cavity.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: June 10, 1997
    Assignee: United States Surgical Corporation
    Inventors: Claude A. Vidal, Russell J. Redmond, Alan K. Plyley, Michael Collinson, Robert M. Eyerly
  • Patent number: 5630539
    Abstract: A surgical stapler with an overload sensor and lockout is disclosed. The surgical stapler is particularly useful in laparoscopic surgical procedures.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: May 20, 1997
    Assignee: United States Surgical Corporation
    Inventors: Alan K. Plyley, Claude A. Vidal, Roger Lagerquist
  • Patent number: 5586711
    Abstract: Surgical staplers for use during open and/or laparoscopic surgical procedures are disclosed. Novel firing device trapping assemblies, pushers, staple lines and firing handles are described. Many of the novel devices reduce the overall firing force experienced by the surgeon.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: December 24, 1996
    Assignee: United States Surgical Corporation
    Inventors: Alan K. Plyley, Claude A. Vidal, John L. Minck, Jr., Alan J. Solyntjes
  • Patent number: 5489058
    Abstract: Surgical staplers for use during open and/or laparoscopic surgical procedures are disclosed. Novel firing device trapping assemblies, pushers, staple lines and firing handles are described. Many of the novel devices reduce the overall firing force experienced by the surgeon.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: February 6, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alan K. Plyley, Claude A. Vidal, Russell J. Redmond, John L. Minck, Jr., Alan J. Solyntjes
  • Patent number: 5470007
    Abstract: A surgical stapler with an overload sensor and lockout is disclosed. The surgical stapler is particularly useful in laparoscopic surgical procedures.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: November 28, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alan K. Plyley, Claude A. Vidal, Roger Lagerquist
  • Patent number: 5458279
    Abstract: The present invention comprises a surgical stapler including an anvil elongate in a longitudinal direction having anvil surfaces in a plane generally perpendicular to the longitudinal direction and surfaces defining an alignment aperture opening onto the anvil surfaces. A cartridge assembly is present that is movable relative to the anvil between an open position with the cartridge assembly spaced from the anvil surfaces and a closed position with the cartridge assembly and the anvil surfaces in closely spaced relationship.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: October 17, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Alan K. Plyley
  • Patent number: 5447265
    Abstract: A laparoscopic stapler with a blocking body is disclosed. The blocking body allows the stapler to be inserted into the abdominal cavity through a cannula and removed therefrom until the staples are fired. When the staples are fired, the blocking body allows the stapler to be removed from the abdominal cavity of the patient through the cannula. After the staples have been fired and the stapler is removed from the abdominal cavity, the blocking body is in a blocking position where it then prevents the stapler from being reinserted through the cannula.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: September 5, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Claude A. Vidal, Russell J. Redmond, Alan K. Plyley
  • Patent number: 5445304
    Abstract: The present invention provides a staple cartridge assembly adapted for use in a surgical stapler having a cartridge retention portion and an anvil portion which are movable between a closed position and an open position.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: August 29, 1995
    Assignee: United States Surgical Corporation
    Inventors: Alan K. Plyley, Floyd L. Foslien, John M. Barker, Robert W. Petrich
  • Patent number: 5439451
    Abstract: A medical backcheck valve includes a hollow housing containing an upwardly biased piston assembly for controlling liquid flow therethrough. The piston assembly comprises a substantially rigid plug having one end protruding from the upper end of the housing, and a flexible sheath covering having a relatively small diameter upper end surrounding the plug, a main seal for controlling flow through said first flow space, and a tubular lower end, secured at the bottom of the housing, for preventing liquid from entering within the covering.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: August 8, 1995
    Assignee: B. Braun Medical, Inc.
    Inventors: Michael Collinson, Alan K. Plyley, Russell J. Redmond, Claude Vidal
  • Patent number: 5338305
    Abstract: A trocar for placement in the lumen of a cannula to facilitate inserting the cannula through the wall of a body cavity, the trocar comprising an obturator with a point for piercing the wall of the body cavity, and a protective sleeve mounted concentrically around the obturator. The obturator retracts proximally relative to the protective sleeve after the trocar point has penetrated through the wall of the body cavity. The protective sleeve is mounted for axial movement relative to the obturator, retracting proximally in response to drag from the wall of the body cavity as the trocar is advanced through the wall, and advancing distally after the cannula has penetrated through the wall, reducing the drag on the sleeve. The distal advancement of the sleeve triggers the retraction of the obturator.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: August 16, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alan K. Plyley, John M. Barker, Claude Vidal, Russell J. Redmond
  • Patent number: 5263944
    Abstract: An adapter seal adapted to facilitate the use of a small instrument within a laparoscopic cannula. The adapter seal comprises a body portion formed of elastomeric material, and a relatively rigid insertion guide mounted on the body portion The body portion has an aperture therein adapted to sealingly engage and support the small instrument while permitting movement of the instrument through the aperture The insertion guide has a wall forming a generally conical passageway for guiding small instruments toward the aperture of the body portion. A tether may be provided for holding the adapter seal adjacent the cannula when the body portion is disconnected from the cannula, and the insertion guide may be color-coded to indicate the size aperture through the body portion of the adapter seal.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: November 23, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Claude A. Vidal, Russell J. Redmond, Alan K. Plyley, John M. Barker, David L. Robbins
  • Patent number: 5152754
    Abstract: A trocar for placement in the lumen of a cannula to facilitate inserting the cannula through the wall of a body cavity, the trocar comprising an obturator with a point for piercing the wall of the body cavity, and a protective sleeve mounted concentrically around the obturator. The obturator retracts proximally relative to the protective sleeve after the trocar point has penetrated through the wall of the body cavity. The protective sleeve is mounted for axial movement relative to the obturator, retracting proximally in response to drag from the wall of the body cavity as the trocar is advanced through the wall, and advancing distally after the cannula has penetrated through the wall, reducing the drag on the sleeve. The distal advancement of the sleeve triggers the retraction of the obturator.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: October 6, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alan K. Plyley, John M. Barker, Claude Vidal, Russell J. Redmond
  • Patent number: 5083695
    Abstract: An improved stapler firing assembly and a surgical stapler are disclosed. The stapler comprises structural members having handle parts with opposite sides and jaw parts projecting from the handle parts. The stapler includes a mechanism for releasable engagement between an elongate locking member and the structural members comprising a lever lock including a hook portion adapted to pass through a slot in a handle part. The lever lock is mounted on the locking member and includes first and second release buttons and actuating means mounting the first and second release buttons on opposite sides of the locking member for movement between first and second positions with respect to the locking member. The stapler firing assembly comprises a pusher adapted to move longitudinally along one of the jaw parts to sequentially press the staples against an anvil.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: January 28, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Floyd Foslien, Alan K. Plyley, John M. Barker, Claude Vidal
  • Patent number: 4754909
    Abstract: A stapler having a spine structure between a staple carrying head assembly and a manually operable actuator assembly that can be made either flexible or rigid as desired during use of the stapler.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: July 5, 1988
    Inventors: John M. Barker, Alan K. Plyley
  • Patent number: 4671445
    Abstract: A flexible surgical stapler assembly includes a staple firing head assembly and a handle actuator assembly connected to the staple firing head assembly through a flexible spine. The staple firing head assembly includes an anvil assembly defining an anvil surface which provides an array of staple forming depressions. A staple housing on the staple firing head assembly carries an array of staples to be formed. A staple pusher means on the staple firing head assembly is provided for exerting a force on the staples in the staple housing to eject the staples from the housing and form the staples against the anvil surface. The handle actuator assembly includes a housing which defines an inner cavity. A cable carrier is provided within the cavity and is freely slidable within the cavity. A length of flexible cable is connected at one of its ends to the cable carrier and at its other end to the anvil assembly of the staple firing head assembly.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: June 9, 1987
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: John M. Barker, Alan K. Plyley
  • Patent number: D349574
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: August 9, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gerald L. Metcalf, Alan K. Plyley, John M. Barker