Flexible tube clamp

Details

Inventors: Larsen, Otis M.;
Assignee:
Primary Examiner: Michell; Robert W.
Assistant Examiner: Thaler; Michael H.
Attorney, Agent or Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt

The disclosure is directed to a clamp for flexible tube and more particularly a clamp for surgical use. The clamp is formed of plastic material and has a pair of clamping members connected by a flexible hinge. The flexible hinge biases the clamping members open and a cam with at least one elongated handle closes the clamping members about a flexible tube or vessel. The clamp may be locked by a screw threaded through the cam and which is advanceable into contact with one clamping member. The clamping members are provided with beveled edges to define narrow convex clamping surfaces for the concentrated distribution of the clamping force, and the surfaces have serrations to prevent slippage of the tube from the grasp of the clamp. The clamping members may be curved to facilitate insertion of the clamp into inaccessible body areas during surgical applications.

DETAILED DESCRIPTION The present invention is a clamp having upper and lower clamping members, a hinge biasing the clamping members open, a cam mounted on a shaft which is pivotally retained by a pair of posts secured to the lower clamping member and which has a cam surface contacting the upper clamping member, and a screw member threaded through the cam and advanceable into contact with the upper clamping member to lock the clamp in place.
The clamping surfaces have beveled edges and are convex to form a narrow tube grasping area for concentrated pressure application.
The clamping surfaces also have serrations which more effectively grasp the flexible tube and prevent slippage of the tube from the clamp.
Additionally, the clamping members have a mating projection and recess at their outer ends which serve to prevent slipping of the tube through the clamping ends.
In an alternative embodiment, the clamping members are curved along their longitudinal axis and tapered to facilitate insertion of the clamp about body organs into relatively inaccessible locations.

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