Valve for medical instrument

摘要

A valve for medical instruments having a canal configured in a medical instrument and serving as input for at least one additional medical instrument is insulated from a distal-end fluid, whereby the valve housing wherein at least one fluid opening is configured, and positioned in the housing at least one insulating body can be inserted at least partly into the canal. The invention has at least one fluid opening configured in the valve housing by which the fluid can be conducted to the outside of the insulating body such that the fluid opening is so configured that the distal-side fluid can be guided out of the canal to the outside of the insulating body in such a way that the distal-side fluid reshapes the insulating body inward, insulating it, to be essentially perpendicular to the longitudinal direction of the insulating body.

主权项

1. A valve for medical instruments for insulating a canal configured in the medical instrument and serving as input for at least one additional medical instrument from a distal-end fluid, the valve comprising:
a valve housing, the valve housing able to be inserted at least partially into the canal; at least one fluid opening configured in the valve housing; and at least one insulating body positioned in the valve housing, the at least one insulating body including:
a peripheral flange positioned at the proximal end of the insulating body and within the valve housing;a peripheral flange at the distal end of the insulating body and within the valve housing;two insulating lips positioned opposite to one another on the inside of the at least one insulating body; andstiffening webs arranged on the outside of the two insulating lips, the stiffening webs serving to press the insulating lips towards one another in a sealing manner by means of the internal tension of the stiffening webs in such a way that the insulating lips are pressed against each other when no additional medical instrument is arranged in the valve housing, wherein the at least one fluid opening is configured so that the distal-side fluid can be conducted out of the canal to the outside of the insulating body in such a way that the distal-side fluid reshapes the insulating body inward, insulating it, to be essentially perpendicular to the longitudinal direction of the insulating body, wherein the insulating lips are pressed against the outer surface of the additional medical instrument when inserted in the valve housing, wherein the distance from the free upper surface of the stiffening webs to the outer surface of the insulating body varies along the longitudinal direction of the stiffening webs in such a way that the distance is largest in an insulating area of the insulating lips, wherein the insulating body is secured free of tension and unspreaded in the longitudinal direction in a fixed position in the valve housing via one of the integrally formed flanges.