Patents by Inventor Harold Pearsall

Harold Pearsall 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).

  • Hard tip over-the needle catheter and method of manufacturing the same
    Patent number: 5957893
    Abstract: An over-the-needle catheter for insertion into an anatomical passage through the use of an introducer. The catheter comprises an elongate, flexible catheter body defining proximal and distal ends, and a lumen extending longitudinally therethrough. Partially inserted into and protruding from the distal end of the catheter body is a rigid, tubular sleeve which defines an abutment shoulder within the lumen of the catheter body. Disposed on and encapsulating the exposed portion of the sleeve is a distal tip member defining a central opening which communicates with the lumen via the sleeve. The abutment shoulder is adapted to abut a portion of the introducer in a manner which inhibits proximal movement of the tip member relative to the introducer to prevent the tip member from being pushed proximally over the introducer and collapsing the catheter body during the insertion of the catheter into the anatomical passage.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: September 28, 1999
    Assignee: Becton Dickinson & Co.
    Inventors: Ronald B. Luther, Charles W. Dickerson, Richard A. Overton, Harold Pearsall
  • Hard tip over-the-needle catheter and method of manufacturing the same
    Patent number: 5916208
    Abstract: An over-the-needle catheter for insertion into an anatomical passage through the use of an introducer. The catheter comprises an elongate, flexible catheter body defining proximal and distal ends, and a lumen extending longitudinally therethrough. Partially inserted into and protruding from the distal end of the catheter body is a rigid, tubular sleeve which defines an abutment shoulder within the lumen of the catheter body. Disposed on and encapsulating the exposed portion of the sleeve is a distal tip member defining a central opening which communicates with the lumen via the sleeve. The abutment shoulder is adapted to abut a portion of the introducer in a manner which inhibits proximal movement of the tip member relative to the introducer to prevent the tip member from being pushed proximally over the introducer and collapsing the catheter body during the insertion of the catheter into the anatomical passage.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: June 29, 1999
    Assignee: Luther Medical Products, Inc.
    Inventors: Ronald B. Luther, Charles W. Dickerson, Richard A. Overton, Harold Pearsall
  • Hard tip over-the-needle catheter and method of manufacturing the same
    Patent number: 5913848
    Abstract: An over-the-needle catheter for insertion into an anatomical passage through the use of an introducer. The catheter comprises an elongate, flexible catheter body defining proximal and distal ends, and a lumen extending longitudinally therethrough. Partially inserted into and protruding from the distal end of the catheter body is a rigid, tubular sleeve which defines an abutment shoulder within the lumen of the catheter body. Disposed on and encapsulating the exposed portion of the sleeve is a distal tip member defining a central opening which communicates with the lumen via the sleeve. The abutment shoulder is adapted to abut a portion of the introducer in a manner which inhibits proximal movement of the tip member relative to the introducer to prevent the tip member from being pushed proximally over the introducer and collapsing the catheter body during the insertion of the catheter into the anatomical passage.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: June 22, 1999
    Assignee: Luther Medical Products, Inc.
    Inventors: Ronald B. Luther, Charles W. Dickerson, Richard A. Overton, Harold Pearsall
  • Hard tip over-the-needle catheter and method of manufacturing the same
    Patent number: 5683370
    Abstract: An over-the-needle catheter for insertion into an anatomical passage through the use of an introducer. The catheter comprises an elongate, flexible catheter body defining proximal and distal ends, and a lumen extending longitudinally therethrough. Partially inserted into and protruding from the distal end of the catheter body is a rigid, tubular sleeve which defines an abutment shoulder within the lumen of the catheter body. Disposed on and encapsulating the exposed portion of the sleeve is a distal tip member defining a central opening which communicates with the lumen via the sleeve. The abutment shoulder is adapted to abut a portion of the introducer in a manner which inhibits proximal movement of the tip member relative to the introducer to prevent the tip member from being pushed proximally over the introducer and collapsing the catheter body during the insertion of the catheter into the anatomical passage.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: November 4, 1997
    Assignee: Luther Medical Products, Inc.
    Inventors: Ronald B. Luther, Charles W. Dickerson, Richard A. Overton, Harold Pearsall