Percutaneous entry needle

• US 4,586,926 A
• Filed: 03/05/1984
• Issued: 05/06/1986
• Est. Priority Date: 03/05/1984
• Status: Expired due to Term

• Current Assignee: Cook Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated)
• Inventors: Osborne, Thomas A.
• Primary Examiner(s): Pellegrino, Stephen C.
• Application Number:
  US06/585,950
• Time in Patent Office: 792 Days
• Field of Search: 604/272-274, 604/263, 604/177, 604/280, 128/329, 128/339
• US Class Current: 604/272
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/3286 Needle tip design, e.g. for improved penetration

Abstract

A percutaneous entry needle for use in digital subtraction angiography procedures. The needle includes tubing having one end sharpened for percutaneous entry by a bevel that is at an acute angle to the axis of the tubing. The tubing has a sharp tip defined by the bevel which tip is located on one side of the tubing. A hub is rigidly secured to the other end of the tubing and includes oppositely projecting luer lock ears which project radially from the axis in directions which are at 90° to the position of the sharp tip relative to the axis. There is also provided a rigid flange rigidly secured to the hub and extending radially thereof. The flange is located on the side of the tubing away from the sharp tip and is appropriately sized for gripping by the user.

Claims

1. A percutaneous entry needle comprising:

tubing having one end sharpened for percutanious entry by a bevel that is at an acute angle to the axis of the tubing, said tubing having a sharp tip defined by said bevel which sharp tip is located on one side of said tubing, said tubing having an outer diameter of approximately 18 gauge and the length of said bevel being approximately 0.5 cm.;

a hub rigidly secured to the other end of said tubing, said hub including oppositely projecting luer lock ears which project radially from said axis in directions which are at ninety degrees (90°

) to the position of said sharp tip relative to said axis, said hub having a passageway therein that is aligned with said tubing, said hub passageway having a mouth which is larger in diameter than the lumen of said tubing, said passageway tapering inside from said mouth to a smaller size at said tubing, which smaller size corresponds to the size of the lumen of said tubing, said tapering passageway being shaped to guide a wire guide into said tubing lumen; and

a rigid flange rigidly secured to said hub and extending radially thereof, said flange being located on the side of said tubing away from said sharp tip, said rigid flange having ribs, one of said ribs extending around the border of said flange, the rest of said ribs being parallel to one another and located inside of said one rib.