Tissue tensioning devices and related methods

摘要

Surgical devices configured to apply and hold a defined pre-set or pre-load tension to target tissue, such as, for example, a blood vessel, tendon or ligament during a surgical procedure.

主权项

1. A surgical device, comprising:
a tissue grasper having a pair of cooperating outer prongs that pivotably close together in parallel relationship in front of a pivot attachment of the prongs, wherein the prongs have outer free ends that are configured to contact tissue to trap target soft tissue therebetween so as to be able to pull soft tissue outwardly and first and second shafts extending away from respective free ends, and wherein the second shaft is a lower elongate shaft and the first shaft is configured to allow a user to push against the first shaft to close the prongs together; a tension measurement device in communication with the tissue grasper whereby tension applied to target tissue by the tissue grasper is measured, wherein the tension measurement device comprises an elongate shaft that extends in a longitudinal direction to be longitudinally aligned with and attached to the lower elongate shaft of the tissue grasper; an upper platform having opposing first and second end portions, the upper platform configured to support the elongate shaft of the tension measurement device, the upper platform residing below and extending parallel to the elongate shaft of the tension measurement device with the tissue grasper prongs extending above and forward of the first end portion of the upper platform, wherein the tissue grasper is slidably held by the upper platform so as to be able to retract and extend in a lengthwise direction relative to the upper platform, the lengthwise direction being in a direction along a longest dimension of the upper platform; a housing slidably mounted to the upper platform with projections extending below the upper platform, wherein the upper platform comprises a slot that extends in the lengthwise direction with the projections extending down through the slot below the upper platform whereby the housing is able to slidably translate back and forth in the slot, and wherein the elongate shaft of the tension measurement device extends through the housing, and the elongate shaft of the tension measurement device is configured to slidably translate relative to the housing in the lengthwise direction; and a limb mounting member attached to and residing under the upper platform, wherein the limb mounting member is an external device that is configured to reside against skin of a patient and is configured to releasably attach to a limb of a patient, wherein the upper platform is pivotably and slidably attached to the limb mounting member to be able to (i) rotate longitudinally and transversely, (ii) slide up and down, and (iii) releasably lock into a desired position relative to the limb mounting member.