Solid Introducer Needle for Catheter

摘要

A solid introducer needle with a light guide unit for catheter assemblies is provided, which comprises a sharp rigid needle-like member and a light guide, forming a substantially monolithic structure. The monolithic structure is thus non-transparent for optical radiation over its entire length, allowing optical radiation to be emitted solely at the distal end thereof. Unit is preferably provided with an adapter, via which adapter unit may be connected to an electronic module, thus forming a catheter assembly. The light guide is configured to receive by its proximal end at least one light beam from at least one light source of the electronic module device, to further conduct said optical radiation beam throughout internal space thereof and to emit optical radiation beam at a distal end thereof. Optical radiation, thus emitted at the distal end of the unit, is preferably of such a wavelength, to be strongly absorbed by blood and walls of the blood vessels.

主权项

1. An introducer needle comprising:
a. a needle member having a proximal end and a distal end, b. a light guide positioned within and extending along at least a portion of the needle member, the light guide terminating at the distal end of the needle member, wherein the light guide forms a monolithic structure with the needle member such that the light guide cannot be withdrawn from the needle member, and wherein the introducer needle does not comprise an inner space that is configured to receive blood through the distal end of the needle member.