Patents by Inventor Hanspeter Bayer

Hanspeter Bayer 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).

  • Publication number: 20220265278
    Abstract: An end effector for a multi-fire clip applier includes a housing that supports a plurality of ligation clips that are arranged in two rows within the housing of the end effector. The end effector includes two pushers and two walking beams that interact with the rows of ligation clips to alternatingly advance a distal-most clip from each of the rows of ligation clips into a jaw assembly of the end effector.
    Type: Application
    Filed: February 22, 2022
    Publication date: August 25, 2022
    Inventors: Jaroslaw T. Malkowski, Robert Pedros, Hanspeter Bayer
  • Patent number: 9517066
    Abstract: In accordance with the present disclosure a cartridge for use with a surgical stapler is disclosed. The cartridge has a plurality of individual directionally biased surgical staples therein and associated pushers for ejecting the staples from the cartridge, each of the staples being supported within the cartridge in spaced relation from adjacent staples and each of the staples comprising a backspan, and a pair of deformable legs depending from the backspan. The legs are configured to come into contact with anvil pockets for formation of the staple. Each of the staples has a substantially uniform cross-section along substantially the entire length of each leg, the cross-section includes a shape that is selected from the group consisting of a trapezoid, a triangle and a semicircle.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: December 13, 2016
    Assignee: Covidien LP
    Inventors: David C. Racenet, Hanspeter Bayer, Scott Cunningham
  • Publication number: 20110108603
    Abstract: In accordance with the present disclosure a cartridge for use with a surgical stapler is disclosed. The cartridge has a plurality of individual directionally biased surgical staples therein and associated pushers for ejecting the staples from the cartridge, each of the staples being supported within the cartridge in spaced relation from adjacent staples and each of the staples comprising a backspan, and a pair of deformable legs depending from the backspan. The legs are configured to come into contact with anvil pockets for formation of the staple. Each of the staples has a substantially uniform cross-section along substantially the entire length of each leg, the cross-section includes a shape that is selected from the group consisting of a trapezoid, a triangle and a semicircle.
    Type: Application
    Filed: October 5, 2010
    Publication date: May 12, 2011
    Applicant: Tyco Healthcare Group LP
    Inventors: David C. Racenet, Hanspeter Bayer, Scott Cunningham
  • Patent number: 7824426
    Abstract: In accordance with the present disclosure a directionally biased staple is provided for use in all types of surgical staplers having anvil structure against which the staple is formed. The directionally biased staple may be constructed in a wide variety of cross-sectional configurations including rectangular, elliptical, trapezoidal, etc. All of the configurations are distinguished by having a bending region requiring more force to twist or malform the staple than is required to properly form the staple. Preferably, these staples have Moment of Inertia Ratios on the order of between about 1.1 to about 3.0. The staple preferably corresponds in other respects to conventional formed staples, i.e. having at least a pair of leg members interconnected by a crown portion wherein the leg members are formed by direct contact with the anvil.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: November 2, 2010
    Assignee: Tyco Healthcare Group, LP
    Inventors: David C. Racenet, Hanspeter Bayer, Scott Cunningham
  • Publication number: 20080061109
    Abstract: In accordance with the present disclosure a directionally biased staple is provided for use in all types of surgical staplers having anvil structure against which the staple is formed. The directionally biased staple may be constructed in a wide variety of cross-sectional configurations including rectangular, elliptical, trapezoidal, etc. All of the configurations are distinguished by having a bending region requiring more force to twist or malform the staple than is required to properly form the staple. Preferably, these staples have Moment of Inertia Ratios on the order of between about 1.1 to about 3.0. The staple preferably corresponds in other respects to conventional formed staples, i.e. having at least a pair of leg members interconnected by a crown portion wherein the leg members are formed by direct contact with the anvil. An anvil assembly is also provided for minimizing the malformation of staples.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 13, 2008
    Inventors: David Racenet, Hanspeter Bayer, Scott Cunningham
  • Publication number: 20070219567
    Abstract: A suture pushing apparatus includes an elongated shaft defining proximal and distal ends, and having a suture pushing member adjacent the distal end thereof. The suture pushing member includes first and second retainer members extending in a general longitudinal direction relative to a longitudinal axis defined by the elongated shaft and being disposed in lateral spaced relation with respect to each other for reception of a suture knot therebetween. The first and second retainer members each include a recess for receiving respective suture lengths extending from the suture knot and are dimensioned for retaining the suture lengths within confines of the recesses.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 20, 2007
    Inventors: Hanspeter Bayer, Jonathan Martinek
  • Publication number: 20060124688
    Abstract: In accordance with the present disclosure a directionally biased staple is provided for use in all types of surgical staplers having anvil structure against which the staple is formed. The directionally biased staple may be constructed in a wide variety of cross-sectional configurations including rectangular, elliptical, trapezoidal, etc. All of the configurations are distinguished by having a bending region requiring more force to twist or malform the staple than is required to properly form the staple. Preferably, these staples have Moment of Inertia Ratios on the order of between about 1.1 to about 3.0. The staple preferably corresponds in other respects to conventional formed staples, i.e. having at least a pair of leg members interconnected by a crown portion wherein the leg members are formed by direct contact with the anvil. An anvil assembly is also provided for minimizing the malformation of staples.
    Type: Application
    Filed: October 17, 2005
    Publication date: June 15, 2006
    Inventors: David Racenet, Hanspeter Bayer, Scott Cunningham
  • Publication number: 20060116604
    Abstract: A medical instrument includes a housing, a stylet having a portion in the housing, a cannula coaxially receiving the stylet and having a portion in the housing, and a member slidably coupled to the housing. The stylet and the cannula are movable between an extended position and a retracted position. The member is configured with first and second bars to move the stylet and the cannula from their extended positions to their retracted positions.
    Type: Application
    Filed: January 4, 2006
    Publication date: June 1, 2006
    Inventors: Leland Adams, Frederick Karl, Hanspeter Bayer, Terence Johnson
  • Publication number: 20050277845
    Abstract: Medical instruments and methods of using the instruments are described. In some embodiments, a medical instrument includes a housing, a stylet having a portion in the housing, a movable first member in the housing, the movable member being connected to the stylet, and a second member located in the housing to reduce movement of the first member. The second member is configured to change movement of the first member from a first direction to a second direction different than the first direction.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 15, 2005
    Inventors: David Cooke, Hanspeter Bayer
  • Publication number: 20050240199
    Abstract: An apparatus for placement of a suture anchor having a suture connected thereto includes a handle dimensioned for engagement by the user and an elongated member connected to the handle and extending therefrom. The elongated member has an anchor mount for mounting a suture anchor. The handle includes a frame having a suture retainer adapted for retaining a suture, at least one cover releasably mounted to the frame to at least partially enclose the suture retainer and a release button mounted to the frame and movable to release the at least one cover from the frame to expose the suture portion.
    Type: Application
    Filed: April 18, 2005
    Publication date: October 27, 2005
    Inventors: Jonathan Martinek, Stephen Zlock, Hanspeter Bayer, Peter Barreiro, Pat Libero
  • Publication number: 20040006372
    Abstract: In accordance with the present disclosure a directionally biased staple is provided for use in all types of surgical staplers having anvil structure against which the staple is formed. The directionally biased staple may be constructed in a wide variety of cross-sectional configurations including rectangular, elliptical, trapezoidal, etc. All of the configurations are distinguished by having a bending region requiring more force to twist or malform the staple than is required to properly form the staple. Preferably, these staples have Moment of Inertia Ratios on the order of between about 1.1 to about 3.0. The staple preferably corresponds in other respects to conventional formed staples, i.e. having at least a pair of leg members interconnected by a crown portion wherein the leg members are formed by direct contact with the anvil.
    Type: Application
    Filed: April 28, 2003
    Publication date: January 8, 2004
    Inventors: David C. Racenet, Hanspeter Bayer, Scott Cunningham