Retrieval basket with releasable tip
AssigneeSciMed Life Systems, Inc.
InventorsRobert Reynolds, M. Kevin Richardson, Mark Bowen
Life of this patent
Estimating the term…
Abstract
A medical retrieval device is used to retrieve and/or fragment stones (and/or other objects) from the body of a patient. The device has a retrieval basket with a releasable tip. The tip release is designed to release in a controlled pre-determined manner and under a predetermined force before any other component of the device fails due to a force exerted on the basket.
Claims76
A medical device, comprising:
- a basket comprising a plurality of wires and a tip joint disposed at the distal end of the basket, an end of each of the plurality of wires is secured at the tip joint, the end of at least one of the plurality of wires is released from the tip joint when a predetermined force is applied to the basket.
A method for removing objects from a body tract, comprising the steps of:
- providing a medical device comprising:
- a handle,
- a sheath extending distally from the handle, the sheath having a lumen extending therethrough from a distal end of the sheath to a proximal end of the sheath, the sheath is dimensioned to fit within a working channel of an endoscope,
- a basket comprising a plurality of wires and a tip joint disposed at the distal end of the basket, an end of each of the plurality of wires is secured at the tip joint, the end of at least one of the plurality of wires is released from the tip joint when a predetermined force is applied to the basket;
- introducing the medical device with the basket in the withdrawn position into the body tract;
- shifting the basket into the expanded position;
- manipulating the basket to capture the objects therein;
- and
- withdrawing the medical device from the body tract.
A medical device for removing objects from a body, comprising:
- a basket comprising a plurality of wires, a proximal end, and a distal end, the distal end of the basket failing when a predetermined force applied to the basket is less than a force required to cause one of the plurality of wires or the proximal end of the basket to fail.
A method for removing objects from a body tract, comprising the steps of:
- providing a medical device comprising:
- a handle,
- a sheath extending distally from the handle, the sheath having a lumen extending therethrough from a distal end of the sheath to a proximal end of the sheath, the sheath dimensioned to fit within a working channel of an endoscope,
- a basket comprising a plurality of wires, a proximal end, and a distal end, the distal end of the basket failing when a predetermined force applied to the basket is less than a force required to cause one of the plurality of wires or the proximal end of the basket to fail, the basket moveable between a withdrawn position in which the basket is collapsed within the lumen of the sheath, and an expanded position in which the basket extends from the distal end of the sheath and is disposed outside of the lumen for capturing the objects in the body;
- introducing the medical device with the basket in the withdrawn position into the body tract;
- shifting the basket into the expanded position;
- manipulating the basket to capture the objects therein;
- and
- withdrawing the medical device from the body tract.
A medical device for removing objects from a body, comprising:
- a basket comprising a plurality of wires and a distal end, the distal end of the basket failing when a predetermined force is applied to the basket, wherein the predetermined force is in the range of about 20 pounds to 50 pounds.
Dependencies are inferred from the claim text.