Patent ID: 11864746
Assignee: TERUMO CARDIOVASCULAR SYSTEMS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 15:
16. A reusable subassembly of a stabilizer system for holding a tissue retraction tool for surgical use, wherein the reusable subassembly is configured to attach to a disposable subassembly having a plurality of articulating links each having a central passage, wherein at least some of the adjacent links nest together at slidable mating surfaces adapted for adjustment of the disposable subassembly to a desired trajectory, a tool interface member disposed at a distal end of the articulating links and configured to mount a surgical component to be held at a selected position, and a tension cable extending through the central passages, wherein a distal end of the tension cable is affixed to the tool interface member, and wherein a proximal end of the tension cable has a radial expansion for retaining the articulating links on the tension cable, the reusable subassembly comprising:
a domed plate configured to be coupled to a fixture, wherein the domed plate has a hollow dome portion with a top aperture;
a barrel-shaped main body having a longitudinal passage, a bottom cavity having a bottom opening and a distal opening, and a cup-shaped flange around the bottom opening configured to nest with an upper surface of the domed portion;
a rotator base disposed in the top aperture and comprising an inverted T-bar captured in the hollow dome, an upper hub rotationally mounted in the bottom cavity, and a deflector surface disposed in the bottom cavity;
a nosepiece slidable in a distal end portion of the longitudinal passage and having a distal surface configured to bear against a proximal end of the articulating links, wherein the nosepiece includes a plunger arm slidably extending into the bottom cavity to slide on the deflector surface of the rotator base;
a drawbar disposed in the longitudinal passage, wherein a distal end of the drawbar has a retainer configured to releasably capture the proximal end of the tension cable; and
a handle having a distal end disposed in the longitudinal passage and movably coupled to the drawbar for manually sliding the drawbar in a longitudinal direction to control a tension applied to the tension cable between a partially loaded state and a fully loaded state;
wherein when the tension cable is in the partially loaded state then the articulating links are movable at the mating surfaces, and the rotator base is movable on the domed plate; and
wherein when the tension cable is in the fully loaded state then the articulating links are locked at the mating surfaces, and the rotator base is locked on the domed plate.