Device for removing solid objects from body canals, cavities and organs including an invertable basket
AssigneeMetamorphic Surgical Devices, LLC
InventorGerald G. Cano
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a surgical instrument used in minimally invasive procedures performed under either direct, endoscopic, fluoroscopic, or other visualization. The surgical instrument includes a frame which can be retracted into and extended from a sheath to form a loop and a sack having a mouth that is attached to the loop. The sack is used to encircle and capture foreign objects in body canals, cavities or organs. The wire frame is formed of a shape-memory-effect alloy wire in a super elastic state and previously trained to form the loop, the loop forming when the said wire frame is extended beyond the sheath. An invertor is connected to a closed end of the sack for urging the closed end of the sack toward the mouth of the sack.
Claims19
An instrument for manipulating an object in a body canal, cavity or organ, the instrument comprising:
- a first linkage having a proximal end and a distal end;
- a sheath having the first linkage slidably received in a bore thereof;
- a frame having a proximal end attached to the distal end of the first linkage, a distal end extendible from and retractable into the sheath by the first linkage and formed of a shape-memory-effect material trained to form at least a partial loop when extended beyond the sheath, and a pair of control arms that are positioned in the bore of the sheath when the frame is retracted into the sheath and which diverge from the bore to the at least partial loop when the distal end of the frame is extended beyond the sheath, the at least partial loop formed continuous between the pair of control arms;
- a sack having a mouth attached to the at least partial loop and a closed end opposite the mouth, the mouth of the sack is opened and closed when the pair of control arms are extended from and retracted into the sheath;
- and
- a second linkage connected to the closed end of the sack and which extends therefrom through the mouth of the sack to an exterior thereof when the sack is opened for urging the closed end of the sack toward the mouth of the sack.
An instrument for removing an object from a body canal, cavity or organ, the instrument comprising:
- a sheath having a central bore therethrough;
- a frame slidably received in the bore of the sheath and having an end extendable from and retractable into the bore, the end of the frame formed from a shape-memory-effect material trained to form at least a partial loop when extended from the sheath, the at least partial loop extending between a pair of control arms that diverge from the end of the bore to the at least partial loop when the end of the frame is extended from the bore;
- a sack having a mouth that is attached to the at least partial loop and a closed end opposite the mouth;
- and
- a linkage connected to the closed end of the sack and which extends therefrom through the mouth of the sack to an exterior thereof when the sack is opened for urging the closed end of the sack toward the mouth of the sack.
A surgical instrument comprising:
- a frame that is adjustable between a closed state and an open state;
- a sack having attached to the frame a mouth that is closeable and openable with adjustment of the frame between the closed state and the open state;
- and
- a linkage connected to a closed end of the sack and which extends therefrom through the mouth of the sack to an exterior thereof when the sack is opened for urging the closed end of the sack through the mouth thereof attached to the frame.
Dependencies are inferred from the claim text.