Set with angled needle

• US 6,267,750 B1
• Filed: 07/15/1998
• Issued: 07/31/2001
• Est. Priority Date: 07/15/1998
• Status: Expired due to Fees

• Current Assignee: DSU Medical Corporation
• Original Assignee: DSU Medical Corporation
• Inventors: Utterberg, David S.
• Primary Examiner(s): Seidel, Richard K.
• Assistant Examiner(s): Sirmons, Kevin C.
• Application Number:
  US09/116,422
• Time in Patent Office: 1,112 Days
• Field of Search: 604/256, 604/167, 604/264, 604/51, 604/158, 604/272, 604/170, 604/170.01
• US Class Current: 604/264
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• 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 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base

Abstract

A cannula or needle set for fluid flow connection with the vascular system of a patient. In one embodiment, the set comprises a hollow, hypodermic needle having a longitudinal axis and a sharp end for skin penetration and connection with the vascular system. A hollow hub carries the needle at a needle opposite to the sharp end. A fluid flow port is defined in the hub at a position laterally spaced from the axis of the needle. An injection site aperture is defined in the hub at a position centrally intersected by the needle axis, the injection site aperture being closed by a recloseable, needle-penetrable wall.

Claims

1. A needle-containing set for fluid flow connection with the vascular system of a patient, which set comprises:

a hollow hypodermic needle having a longitudinal axis and a sharp end for skin penetration and connection with the vascular system;

a hollow hub which carries said needle at a needle end opposite to said sharp end;

a fluid flow port defined in said hub a position laterally spaced from the axis of said needle, and communicating with the interior of said hollow hypodermic needle; and

an injection site aperture defined in said hub at a position centrally intersected by said needle axis, said injection site aperture being closed by a recloseable needle-penetrable, resealable wall, further in which a substantially blunt rod or tube extends through said recloseable needle-penetrable wall and through said hollow needle to extend effectively beyond said sharp end, thus providing protection from accidental needle sticks.

2. The set of claim 1 in which said fluid flow port is surrounded by a sleeve which is an integral part of said hub and which connects to a length of flexible tubing, said sleeve extending transversely to the needle axis.

3. The set of claim 1 in which said substantially blunt rod or tube substantially fills the bore of said needle.

4. The set of claim 3 in which said fluid flow port is surrounded by a sleeve which is an integral part of said hub, and which connects to a length of flexible tubing, said sleeve extending transversely to the needle axis.

5. A needle-containing set for fluid flow connection with the vascular system of a patient, which set comprises:

a hollow, hypodermic needle having a longitudinal axis and sharp end for skin penetration and connection with a vascular system;

a hollow hub which immovably carries said needle at a needle end opposite to said sharp end;

a fluid flow port defined in said hub at a position laterally spaced from the axis of said needle, said fluid flow port communicating with the interior of said hollow hypodermic needle; and

an injection site aperture defined in said hub at a position centrally intersected by said needle axis, said injection site aperture being closed by a recloseable, needle-penetrable, resealable wall, said fluid flow port being surrounded by a sleeve which is an integral part of said hub and which connects to a length of flexible tubing, said sleeve extending transversely to the needle axis, and a blunt rod or tube extending through said recloseable, needle-penetrable wall and through said hollow needle to extend at least effectively beyond said sharp end, thus providing protection from accidental needle sticks, said blunt rod or tube having a diameter to substantially fill the bore of said needle.

6. The set of claim 5 in which said blunt rod or tube is substantially rigid.

7. The set of claim 6 in which said fluid flow port is surrounded by a sleeve which is an integral part of said hub, and which connects to a length of flexible tubing, said sleeve extending transversely to the needle axis.

8. The set of claim 5 in which said blunt rod or tube is substantially rigid.

9. The set of claim 8 in which said fluid flow port is surrounded by a sleeve which is an integral part of said hub, and which connects to a length of flexible tubing, said sleeve extending transversely to the needle axis.