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US 2024/0180407 A1Published application
Puncture device and endoscopy system
AssigneeOlympus Medical Systems Corp.
InventorYutaka YANUMA
Life of this patent
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Abstract
A puncture device according to an aspect of the present disclosure is a puncture device inserted into an endoscope channel, including: an outer sheath; an inner sheath inserted into the outer sheath; the inner sheath including; a coil sheath; and a needle tube located at a distal end of the coil sheath; a connecting portion connecting the needle tube and the coil sheath; and a cover covering the coil sheath and the connecting portion.
Claims20
A puncture device inserted into an endoscope channel, comprising:
- an outer sheath;
- an inner sheath inserted into the outer sheath, the inner sheath including;
- a coil sheath;
- and
- a needle tube located at a distal end of the coil sheath;
- a connecting portion connecting the needle tube and the coil sheath;
- and
- a cover covering the coil sheath and the connecting portion.
5 more elements
An endoscopy system, comprising:
- an endoscope having a channel through which a puncture device is inserted,
- the puncture device, including:
- an outer sheath;
- an inner sheath inserted into the outer sheath, the inner sheath including:
- a coil sheath;
- a needle tube located at a distal end of the coil sheath;
- a connecting portion connecting the needle and the coil sheath;
- and
- a cover covering the coil sheath and the connecting portion;
- wherein the outer sheath includes:
- a distal end coil sheath located at a distal end of the outer sheath;
- an intermediate coil sheath located on a proximal side of the distal end coil sheath;
- a proximal end coil sheath located on a proximal side of the intermediate coil sheath;
- a first connecting portion connecting the distal end coil sheath and the intermediate coil sheath;
- and
- a second connecting portion connecting the intermediate coil sheath and the proximal end coil sheath;
- wherein the first connecting portion includes a first stopper fixing the inner sheath at a first position where the inner sheath is fully advanced relative to the outer sheath, wherein the second connecting portion includes a second stopper fixing the inner sheath at a second position where the inner sheath is fully retracted relative to the outer sheath, and wherein a length from the first stopper to a proximal opening of the outer sheath is shorter than a length of the channel of the endoscope.
14 more elements
Dependencies are inferred from the claim text.