Patent ID: 11957408
Assignee: BOSTON SCIENTIFIC MEDICAL DEVICE LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 17:
18. A medical system comprising:
a medical instrument including a sheath and a tool movable within the sheath;
a medical device including a first actuator, a first spring, a second actuator, a second spring, an outer body, and an inner body movable within the outer body;
wherein the first actuator is operable to allow movement of the tool relative to the sheath, and the outer body relative to the inner body when in an actuated state;
wherein the first spring is disposed within a cavity of the outer body and between the first actuator and the outer body;
wherein, in the actuated state, the first spring applies a radially outward force on the first actuator;
wherein the second actuator is operable to allow movement of the sheath relative to the tool, and relative to the outer body and the inner body when in an actuated state;
wherein the second spring is disposed between the second actuator and a retainer, wherein the retainer is coupled to a sled that is fixedly coupled to the sheath;
wherein the first actuator and the second actuator are collectively operable to inhibit movement of the tool relative to the sheath and the sheath relative to the tool and the inner body when in an unactuated state;
wherein one or more first teeth of the first actuator engage second teeth of the inner body in the unactuated state, wherein the first spring is relaxed in the unactuated state of the first actuator, wherein the one or more first teeth are spaced from the second teeth in the actuated state, and wherein the first spring is compressed in the actuated state of the first actuator, and
wherein one or more third teeth of the second actuator engage the second teeth of the inner body in the unactuated state, wherein the second spring is relaxed in the unactuated state of the second actuator, wherein the one or more third teeth are spaced from the second teeth in the actuated state, and wherein the second spring is compressed in the actuated state of the second actuator.