Subcutaneous tunnelling device and methods of forming a subcutan

Details Subcutaneous tunnelling device and methods of forming a subcutan Subcutaneous tunnelling device and methods of forming a subcutan

1997-08-27

1999-08-31

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606165, 606168, 604264, 604273, 604274, A61B 1732

Patent

active

059447320

ABSTRACT:
A subcutaneous tunnelling device, a dilator and a method of forming a subcutaneous tunnel are provided. The device includes a trocar having a front end with a point configured for piercing skin, and a dilator which has a front end removably attached to the rear end of the trocar. The dilator is for dilating a section of a subcutaneous tunnel and includes a dilating section having a maximum diameter sized for dilating an interior surface of a subcutaneous tunnel for seating a catheter stabilizing cuff in the subcutaneous tunnel. The method of forming a subcutaneous tunnel includes the steps of inserting a trocar through a first location on a cutaneous surface and moving the trocar through subcutaneous tissue to form a subcutaneous tunnel. The trocar is at least partially removed and a front end of a dilator is attached to the trocar. A section of the tunnel is dilated by moving the dilator partially through the tunnel until the front end of the dilator reaches a first subcutaneous location in the tunnel. The dilator and trocar are at least partially withdrawn from the dilated tunnel section of the subcutaneous tunnel through the first end of the tunnel.

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