Patents by Inventor Rakesh K. Garg

Rakesh K. Garg 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).

  • First method for using cannula including a valve structure and associated instrument element
    Patent number: 4844087
    Abstract: According to the present invention, an outer hollow cannula including a valve structure is adapted to receive inner instrument elements for performing the procedures of thoracentesis and plueral biopsy. The cannula comprises: a hollow cylindrical body including a longitudinally directed circular lumen; proximal attachment means; and the valve structure being interposed along the length of the cannula lumen. The valve structure includes a cylindrical member being interposed perpendicularly along the path of the cannula lumen, being rotatable about an axis perpendicular to the longitudinal direction of the cannula lumen, and further includes a short lumen having the same diameter as the cannula lumen and being rotatable to be concentric with the cannula lumen or being rotatable to be perpendicular to the cannula lumen. For performing the thoracentesis procedure, the cannula also comprises a distal circular annular surface.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: July 4, 1989
    Inventor: Rakesh K. Garg
  • Second method for using cannula including a valve structure and associated instrument elements
    Patent number: 4840184
    Abstract: According to the present invention, an outer hollow cannula including a valve structure is adapted to receive inner instrument elements for performing the procedures of thoracentesis and plueral biopsy. The cannula comprises: a hollow cylindrical body including a longitudinally directed circular lumen; proximal attachment means; and the valve structure being interposed along the length of the cannula lumen. The valve structure includes a cylindrical member being interposed perpendicularly along the path of the cannula lumen, being rotatable about an axis perpendicular to the longitudinal direction of the cannula lumen, and further includes a short lumen having the same diameter as the cannula lumen and being rotatable to be concentric with the cannula lumen or being rotatable to be perpendicular to the cannula lumen. For performing the thoracentesis procedure, the cannula also comprises a distal circular annular surface.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: June 20, 1989
    Inventor: Rakesh K. Garg
  • Cannula including a valve structure and associated instrument elements
    Patent number: 4832044
    Abstract: According to the present invention, an outer hollow cannula including a valve structure is adapted to receive inner instrument elements for performing the procedures of thoracentesis and plueral biopsy. The cannula comprises: a hollow cylindrical body including a longitudinally directed circular lumen; proximal attachment means; and the valve structure being interposed along the length of the cannula lumen. The valve structure includes a cylindrical member being interposed perpendicularly along the path of the cannula lumen, being rotatable about an axis perpendicular to the longitudinal direction of the cannula lumen, and further includes a short lumen having the same diameter as the cannula lumen and being rotatable to be concentric with the cannula lumen or being rotatable to be perpendicular to the cannula lumen. For performing the thoracentesis procedure, the cannula also comprises a distal circular annular surface.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: May 23, 1989
    Inventor: Rakesh K. Garg
  • Cannula including a valve structure and associated instrument elements and method for using same
    Patent number: 4784156
    Abstract: According to the present invention, an outer hollow cannula including a valve structure is adapted to receive inner instrument elements for performing the procedures of thoracentesis and plueral biopsy. The cannula comprises: a hollow cylindrical body including a longitudinally directed circular lumen; proximal attachment means; and the valve structure being interposed along the length of the cannula lumen. The valve structure includes a cylindrical member being interposed perpendicularly along the path of the cannula lumen, being rotatable about an axis perpendicular to the longitudinal direction of the cannula lumen, and further includes a short lumen having the diameter as the cannula lumen and being rotatable to be concentric with the cannula lumen or being rotatable to be perpendicular to the cannula lumen. For perfroming the thoracentesis procedure, the cannula also comprises a distal circular annular surface.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: November 15, 1988
    Inventor: Rakesh K. Garg