RONALD A MAYVILLE
Engineering in Newton, MA
License number
Massachusetts 39134
Issued Date
Feb 28, 1996
Expiration Date
Jun 30, 2018
Type
Structural Engineer
Address
Address
Newton, MA 02458
Personal information
See more information about RONALD A MAYVILLE at radaris.comName
Address
Phone
Newton, MA
28 Cotton St, Newton, MA 02458
Professional information
Making Closed End Tubes For Surgical Instruments
US Patent:
6742236, Jun 1, 2004
Filed:
Sep 20, 1999
Appl. No.:
09/399596
Inventors:
Ernest A. Dion - Danvers MA
Ronald A. Mayville - Newton MA
Joop F. Hoekstra - Medfield MA
John L. OBrien - Winchester MA
Ronald A. Mayville - Newton MA
Joop F. Hoekstra - Medfield MA
John L. OBrien - Winchester MA
Assignee:
Smith Nephew, Inc. - Memphis TN
International Classification:
B23P 1100
US Classification:
29434, 29558, 606171, 7237013
Abstract:
Techniques are described for making one-piece tubes for surgical instruments in which an inner tube that carries a cutting implement is disposed for movement within an outer tube having a cutting window that exposes the cutting implement to tissue. Swaging is performed to close an end of a tubular member that is to serve as either the inner tube or the outer tube. Other processing steps are also performed. For example, a selected amount of a protrusion formed by the swaging is cut away, the tube material is fused together at a seam formed by the swaging, and the closed distal end of the tubular member is formed into a selected shape. For example, the selected shape is rounded so that the distal end defines convex (e. g. , substantially hemispherical) interior and exterior distal surfaces. This renders the tube suitable for use in full-radius surgical instruments.
Making Closed End Tubes For Surgical Instruments
US Patent:
2004018, Sep 23, 2004
Filed:
Jan 28, 2004
Appl. No.:
10/766375
Inventors:
Ernest Dion - Danvers MA, US
Ronald Mayville - Newton MA, US
Joop Hoekstra - Medfield MA, US
John O'Brien - Winchester MA, US
Ronald Mayville - Newton MA, US
Joop Hoekstra - Medfield MA, US
John O'Brien - Winchester MA, US
Assignee:
Smith & Nephew, Inc., a Delaware corporation
International Classification:
B23P011/00, B21D039/00, B23K001/20
US Classification:
029/434000, 228/173400, 072/370120
Abstract:
Techniques are described for making one-piece tubes for surgical instruments in which an inner tube that carries a cutting implement is disposed for movement within an outer tube having a cutting window that exposes the cutting implement to tissue. Swaging is performed to close an end of a tubular member that is to serve as either the inner tube or the outer tube. Other processing steps are also performed. For example, a selected amount of a protrusion formed by the swaging is cut away, the tube material is fused together at a seam formed by the swaging, and the closed distal end of the tubular member is formed into a selected shape. For example, the selected shape is rounded so that the distal end defines convex (e.g., substantially hemispherical) interior and exterior distal surfaces. This renders the tube suitable for use in full-radius surgical instruments. Alternatively, the selected shape is flattened so that the distal end defines flattened interior and exterior distal surfaces. In this case, the tube can be used in end cutting surgical instruments.