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US 10,238,407 B2Granted
Basket-type grasping forceps
AssigneeOlympus Corporation
InventorTsutomu Okada
Life of this patent
Estimating the term…
Abstract
A binding part of a basket-type grasping forceps includes: a first binding part to which proximal ends of first wires that are some of a plurality of basket wires are fixed; and a second binding part to which proximal ends of second wires not connected to the first binding part among the plurality of basket wires are fixed, which is engaged with the first binding part to be separable from the first binding part, is containable inside a sheath along with the first binding part in a state in which the second binding part is engaged with the first binding part, and is held by an inner surface of the sheath to be inseparable from the first binding part in the sheath.
Claims17
A basket-type grasping forceps comprising:
- a sheath;
- a manipulating wire inserted into the sheath;
- a plurality of basket wires including a plurality of first wires and a plurality of second wires, the plurality of basket wires being projected from a distal portion of the sheath, the plurality of basket wires forms a basket section configured to hold a target;
- a first binder to which proximal ends of the plurality of first wires are fixed in a proximal side of the plurality of basket wires, the plurality of first wires fixed to the first binder being arranged in a semicircular arc shape, the first binder being connected to the manipulating wire, the first binder being configured to move between an inside of the sheath and an outside of the sheath;
- and
- a second binder to which proximal ends of the plurality of second wires are fixed, the plurality of second wires fixed to the second binder being arranged in a semicircular arc shape, the second binder being configured to be:
- (i) held by the first binder in the sheath, and (ii) separated from the manipulating wire by separating the second binder from the first binder in a state in which the second binder is disposed at the outside of the sheath, the plurality of second wires being deformed to form a loop shape by an elasticity of the plurality of second wires by the plurality of basket wires in response to separating from the first binder, wherein:
- the plurality of second wires is separated from the plurality of first wires;
- and
- a first loop is formed by the plurality of second wires in a distal end of the basket section, and a second loop is formed by the plurality of second wires in a proximal end of the basket section in a state where the plurality of first wires moves in the sheath.
7 more elements
A basket-type grasping forceps comprising:
- a sheath;
- a manipulating wire inserted into the sheath;
- a basket section configured to hold a target, and the basket section is formed by a plurality of basket elastic wires, the plurality of basket elastic wires including a plurality of first wires and a plurality of second wires, the plurality of first wires being projected from a distal portion of the sheath, the plurality of basket elastic wires extending in a helical shape about a central axis of the basket section;
- a distal fixing member that is fixed to a distal end part of the basket elastic wires;
- a first binder to which proximal ends of the plurality of first wires are fixed in a proximal side of the plurality of basket elastic wires, the first binder being connected to the manipulating wire, the first binder being configured to move between an inside of the sheath and an outside of the sheath;
- and
- a second binder to which proximal ends of the plurality of second wires are fixed, second binder being configured to be:
- (i) held by the first binder in the sheath, and (ii) separated from the manipulating wire by separating the second binder from the first binder in a state in which the second binder is disposed at the outside of the sheath, the second binder moving towards the distal fixing member by separating the second binder from the first binder, wherein:
- the plurality of second wires is separated from the plurality of first wires;
- and
- a first loop is formed by the plurality of second wires in a distal end of the basket section, and a second loop is formed by the plurality of second wires in a proximal end of the basket section.
8 more elements
A basket-type grasping forceps comprising:
- a sheath;
- a manipulating wire inserted into the sheath;
- a basket section configured to hold a target, and the basket section is formed by a plurality of basket elastic wires, the plurality of basket elastic wires including a plurality of first wires and a plurality of second wires, the plurality of first wires being projected from a distal portion of the sheath;
- a first binder to which proximal ends of at least of first wires are fixed in a proximal side of the plurality of basket elastic wires, the first binder being connected to the manipulation wire, the first binder being configured to move between an inside of the sheath and an outside of the sheath;
- and
- a second binder to which proximal ends of at least of second wires are fixed, second binder being configured to be:
- (i) held by the first binder in the sheath, and (ii) separated from the manipulating wire by separating the second binder from the first binder in a state in which the second binder is disposed at the outside of the sheath, wherein:
- at least one of the plurality of second wires is covered by the second binder;
- the plurality of second wires is separated from the plurality of first wires;
- and
- a first loop is formed by the plurality of second wires in a distal end of the basket section, and a second loop is formed by the plurality of second wires in a proximal end of the basket section in a state where the plurality of first wires moves in the sheath.
8 more elements
Dependencies are inferred from the claim text.