Pinch clamp
AssigneeBecton, Dickinson and Company
InventorsOlivia Hu, Ralph L. Sonderegger, Shaun Staley
Life of this patent
Estimating the term…
Abstract
Pinch clamps are provided which generate positive displacement while also preventing rebound. To prevent rebound while providing positive displacement, the upper and lower clamping surfaces may be configured to form a pinch profile along which the tubing is compressed with the pinch point being formed at the distal end of the pinch profile. To further prevent rebound, the lower arm of the pinch clamp can include blocking ribs that interface with the upper clamping surface to prevent distal travelling of the pinch point even if the upper arm is forced into an over-engaged position.
Claims8
A pinch clamp to clamp a medical tubing, comprising:
- a lower arm comprising a lower clamping surface, wherein the lower clamping surface comprises an upwardly protruding portion having a first curve, wherein the lower clamping surface further comprises an upwardly protruding proximal portion;
- an upper arm comprising an upper clamping surface, wherein the upper clamping surface comprises a downwardly protruding portion having a second curve, wherein the upper arm further comprises a recessed portion proximate and proximal to the downwardly protruding portion, wherein the upwardly protruding proximal portion is configured to insert into the recessed portion when the pinch clamp is in an engaged position, wherein the first curve of the upwardly protruding portion is elongated relative to the second curve of the downwardly protrusion portion, wherein the upwardly protruding portion is aligned with the downwardly protruding portion to form a pinch point when the pinch clamp is in an engaged position;
- and
- a hinge disposed between the lower arm and the upper arm.
A pinch clamp to clamp a medical tubing, comprising:
- a lower arm comprising a lower clamping surface, wherein the lower clamping surface comprises an upwardly protruding distal portion having a first curve, wherein the lower clamping surface further comprises an upwardly protruding proximal portion;
- an upper arm comprising an upper clamping surface, wherein the upper clamping surface comprises a downwardly protruding distal portion having a second curve, wherein the first curve of the upwardly protruding distal portion is elongated relative to the second curve of the downwardly protrusion distal portion, wherein the upwardly protruding distal portion is aligned with the downwardly protruding distal portion to form a pinch point when the pinch clamp is in an engaged position, wherein the upper arm further comprises a recessed portion proximate and proximal to the downwardly protruding distal portion, wherein a space between the downwardly protruding distal portion and the upwardly protruding distal portion is less than a space between the recessed portion and the upwardly protruding proximal portion when the pinch clamp is in the engaged position;
- and
- a hinge disposed between the lower arm and the upper arm.
Dependencies are inferred from the claim text.