Surgical kit for implantation of an injection site

• US 6,206,871 B1
• Filed: 01/05/1999
• Issued: 03/27/2001
• Est. Priority Date: 07/08/1996
• Status: Expired due to Fees

• Current Assignee: Claudio Zanon, Maurizio Grosso
• Original Assignee: Claudio Zanon, Maurizio Grosso
• Inventors: Zanon, Claudio, Grosso, Maurizio
• Primary Examiner(s): MAYNARD, JENNIFER J
• Application Number:
  US09/214,367
• Time in Patent Office: 812 Days
• Field of Search: 604/891.1, 604/131-134, 604/244, 604/175, 604/183-185, 604/264, 604/280-202, 606/1
• US Class Current: 604/891.1
• CPC Class Codes: A61M 2209/04 Tools for specific apparatus
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276

Abstract

The kit enables performing percutaneous connection between an arterial catheter (1) to be inserted along an artery leading to the region to be treated, and an infusion port (2) to be implanted in correspondence of a subcutaneous pocket-like cut (T) formed at a short distance from the opening (C) for introducing the catheter (1). The kit comprises a tunnelling assembly including a cannula needle (3) formed by a metal tubular inner stylet (4) having a tapered and bevelled tip (5) and by an outer jacket (6), a metal guide member (7), and a tunneler device (8) formed by an inner tubular dilator (9) and by an outer tubular introduction element (10) having a slightly tapered distal end (11) and a slightly countersunk proximal end (12).

Claims

1. A surgical method for percutaneous implantation of an arterial locoregional chemotherapy treatment system for metastases, comprising:

providing an arterial catheter (1) made of a non-thrombogenic material and having a substantial length, and inserting said arterial catheter along an artery leading to a region to be treated, through an introduction opening (C),

providing an infusion port (2) and implanting said infusion port in correspondence of a subcutaneous pocket-like cut (T) formed at a short distance from said introduction opening (C) of the arterial catheter,

providing a tunneling assembly including a cannula needle (3) formed by a metal tubular inner stylet (4) having a tapered and beveled tip (5) and by an outer jacket (6) made of plastic material and adapted to be axially withdrawn from said inner stylet (4);

a metal guide member (7) to be inserted through said outer jacket (6) of the cannula needle (3); and

a tunneller device (8) formed by an inner tubular dilator (9) made of plastic material and by an outer tubular introduction element (10) made of plastic material, having a slightly tapered distal end (11) and a slightly countersunk proximal end (12), and relatively to which said inner tubular dilator (9) has an outer diameter substantially equal to the outer diameter of said arterial catheter (1) so as to prevent displacement of said catheter when implanted, creating, through said tunneling assembly, a tunnel between said introduction opening and said pocket-like cut and performing, via said tunnel, percutaneous connection between said arterial catheter and said infusion port.

2. Method according to claim 1, further comprising providing a subcutaneous restraining member (13) of said arterial catheter (1) and implanting said restraining member in an area comprised between said introduction opening (C) and said pocket-like cut (T).