Percutaneous port catheter assembly and method of use

• US 5,738,660 A
• Filed: 06/27/1996
• Issued: 04/14/1998
• Est. Priority Date: 10/27/1994
• Status: Expired due to Term

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Luther Medical Products, Inc. (Becton, Dickinson & Co)
• Inventors: Luther, Ronald B.
• Primary Examiner(s): Bockelman, Mark
• Application Number:
  US08/671,066
• Time in Patent Office: 656 Days
• Field of Search: 604/165, 604/164, 604/198, 604/280, 604/263
• US Class Current: 604/164.08
• CPC Class Codes: A61M 2005/3228 the needle being retracted by a member protruding laterally through a slot in the barrel, e.g. double-ended needles
• CPC Class Codes: A61M 25/0612 Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276
• CPC Class Codes: A61M 5/322 Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston devices for protecting guide needles in combination with catheters A61M25/0612

Abstract

Apparatus and method for introducing a catheter into a surgically implanted port. The apparatus has a housing attached to a stylet, with the stylet being received in a catheter. Also provided in the apparatus is a casing with a protective cap that slidably fits within the housing. Also disclosed is a method of catheterizing a surgically implanted port by means of inserting a stylet encased in a catheter and retracting the stylet.

Claims

1. An apparatus for introducing a catheter into a surgically implanted port, said apparatus comprising:

a housing including a base, a pair of elongate, flexible grips defining distal ends and non-inwardly springedly extending from the base in substantially parallel opposing relation to each other, and an adaptor member extending from the base between said grips;

an elongate stylet defining a piercing tip, said stylet being attached to the adaptor member and extending between the grips beyond the distal ends thereof; and

a catheter including a hub which is extensible over and releasably attachable to the adaptor member and an elongate, flexible sleeve extending from the hub and having a distal end and a proximal end attached to the hub, said sleeve being sized to substantially cover the stylet when the hub is attached to the adaptor member, with the piercing tip of the stylet protruding from the distal end of the sleeve;

wherein said grips are spaced from the sleeve and the inward flexation by hand of the grips at a point distal of said hub engages the sleeve thus providing lateral support to the sleeve and the stylet during the introduction of the catheter into the port.

2. The apparatus of claim 1 wherein the grips each include a groove extending longitudinally therewithin for maintaining the sleeve and the stylet in registry therebetween when the grips are flexed inwardly against the sleeve.

3. The apparatus of claim 2 wherein the grooves disposed within the grips each have a generally V-shaped configuration.

4. The apparatus of claim 1 wherein the base of the housing has a generally circular configuration, and the adaptor member has a generally cylindrical configuration and extends axially from the base.

5. The apparatus of claim 1 wherein said adaptor member comprises a Luer lock fitting.

6. An apparatus for introducing a catheter into a surgically implanted port, said apparatus comprising:

a housing including a base, a pair of elongate, flexible grips defining distal ends and non-springedly extending from the base in substantially parallel opposing relation to each other, and an adaptor member extending from the base between said grips;

an elongate stylet defining a piercing tip, said stylet being attached to the adaptor member and extending between the grips beyond the distal ends thereof, with said apparatus further comprising an elongate, tubular sheath slidably attached to the housing and selectively advanceable over the stylet subsequent to the withdrawal thereof from within the catheter; and

a catheter including a hub which is extensible over and releasably attachable to the adaptor member and an elongate, flexible sleeve extending from the hub and having a distal end and a proximal end attached to the hub, said sleeve being sized to substantially cover the stylet when the hub is attached to the adaptor member, with the piercing tip of the stylet protruding from the distal end of the sleeve;

wherein the inward flexation by hand of the grips facilitates the engagement thereof to the sleeve thus providing lateral support to the sleeve and the stylet during the introduction of the catheter into the port.