A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/93
A61M 29/00 (2006.01) A61M 25/06 (2006.01)
Patent
CA 1305004
GRAY 3.0-4/PCT Inventor: JOSEPH GRAYZEL Title: DIAGONALLY TAPERED, BEVELLED TIP INTRODUCING CATHETER AND SHEATH AND METHOD FOR INSERTION A B S T R A C T The present invention provides an improved introducing- dilating catheter which may also be applied to facilitate insertion of catheters of all types and functional purposes. The catheter has a tapered portion which is, in turn, connected to a bevelled tip portion to facilitate insertion of the cath- eter into a preexisting puncture aperture. The bevelled tip portion is finished to remove any points capable of puncturing or any edges capable of injuring the tissues by the application of only a small force. Indicia means are provided to enable the practitioner using the introduction-dilation catheter to determine the orientation of the tip of the catheter so that the leading point of the bevelled tip will initiate engagement with the vascular puncture cut and enter the vessel in the acute angle formed between the guide wire and the vessel wall. Additionally, after entry of the entire tip, the indicia means allow the introducing catheter to be reoriented so as to keep the bevel parallel to the wall of a vessel.
571577
Grayzel Joseph
Ridout & Maybee Llp
LandOfFree
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