Surgical tube adapter clamp

Claim 1

A surgical tube adapter clamp for effecting a tube connection to a blood vessel, the combination of a relatively rigid hollow tubular member having a free end constructed for insertion in a blood vessel, the opposite end adapted to be operatively connected to the cooperable end of a tube, a first relatively deformable member encircling said tubular member at a point spaced from said free end thereof and adapted to engage the adjacent external wall surface of a blood vessel following insertion therein of said free end, a second relatively deformable member, in the form of a tubular sleeve adapted to be expanded in a radial direction by relative axial movement of its free end portions toward one another, which sleeve encircles an intermediate portion of said tubular member and extends axially outwardly from said first deformable manner, whereby the outer end portion of said second deformable member may also be disposed in such a blood vessel, a body member in which said tubular member is supported for longitudinal movement, one end of said tubular sleeve being engaged with said body member and the opposite end engaged with said tubular member, whereby longitudinal movement of said tubular member relative to said body member is operable to effect expanding movement of said sleeve, for effecting a deformation of said sleeve to increase the effective diameter thereof within the blood vessel and thereby clamp the adjacent wall of such a vessel between the two deformable members to secure the clamp to the vessel, and releasable means engageable with said body and tubular member for retaining said tubular member in sleeve-expanding position relative to said body member, said releasable means comprising a lever, pivotally movable relative to said body member, and having an opening therein through which said tubular member extends, and resilient means for urging said lever in a direction to retain said tubular member in such retaining position.