CLAMP DEVICE FOR HEMOSTASIS OR CLOSURE OF TISSUE AND MEDICAL INSTRUMENT FOR HEMOSTASIS OR CLOSURE OF TISSUE

摘要

A clamp device (3) for hemostasis or closure of a tissue, comprising a clamp housing (6) and at least two clamp arms (8a, 8b), wherein the clamp arms (8a, 8b) can be coupled to the distal end of the control wire (4) of a medical instrument to stop bleeding of a blood vessel, the clamp device (3) can be actuated to open and close the clamp arms (8a, 8b), the clamp arms (8a, 8b) are coupled to each other or can be coupled at the proximal ends thereof, so that the clamp arms (8a, 8b) can rotate about a common pivot axis, each of the clamp arms (8a, 8b) is provided with a guide groove (12), and the guide grooves (12) of the clamp arms (8a, 8b) partially overlap each other, and a guide pin (13) attached to the clamp housing (6), and extending in the overlapping part of the guide grooves (12) and passing through the guide grooves (12), so that by means of the fitting of the guide pin (13) and the guide grooves (12), the movement of the pivot axis is converted into the closing movement of the clamp arms (8a, 8b) or the opening movement of the clamp arms (8a, 8b) about the pivot axis, a holding hole (30) being provided on each of the clamp arm (8a, 8b), the holding hole (30) extending from the side thereof into the guide groove (12), thereby allowing the guide pin (13) to pass through to reach the distal end of the guide groove (12) but prevent the guide pin (13) from passing through in an opposite direction.