Surgical device with reusable handle

摘要

A laparoscopic surgical device is provided, including a removable tool-comprising shaft having an outer shaft and an inner actuation rod that may be removably or permanently connected together. A handle of the device includes a two-button mechanism for engaging and releasing the removable tool-comprising shaft. The two-button mechanism is configured to engage overlapping corresponding apertures of the outer shaft and the inner rod that extends through the outer shaft.

主权项

1. A surgical instrument, comprising:
a handle comprising:
a first handle member;a second handle member pivotably attached to the first handle member, configured to pivot relative thereto; a body comprising:
a tubular outer shaft removably attached to the first handle member;an inner rod extending through a longitudinal lumen of the outer shaft and removably attached to the second handle member in a manner permitting reciprocal longitudinal movement relative to the outer shaft; and an engagement mechanism configured to provide a releasable connection between the handle and the body, comprising:
at least a first outer shaft aperture and a second outer shaft aperture, which are at least partially opposed to each other and are disposed through a proximal region of the outer shaft;a first shutter permanently actuatably attached to the first handle member and biased into a releasable engagement with the at least a first outer shaft aperture;a second shutter permanently actuatably attached to the first handle member, at least partially opposed to the first shutter, and biased into a releasable engagement with the at least a second outer shaft aperture; wherein the instrument is configured such that pivoting one of the first and second handle members relative to the other longitudinally moves the inner rod relative to the outer shaft; and wherein the inner rod further comprises a proximal inner rod aperture that is configured to align with the at least one of the outer shaft apertures and to receive at least one of the first and second shutters while allowing the inner rod to move longitudinally relative to the outer shaft when the handle is actuated by pivoting one of the handle members relative to the other.