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US 2009/0270761 A1Published application
Medical Instrument
AssigneeBoston Scientific Scimed, Inc.
InventorsDavid Cooke, Michael John Bettuchi, Leland Ray Adams, Frederick Timothy Karl
Life of this patent
Estimating the term…
Abstract
A method includes actuating a lever to move a cannula of a medical instrument from a first extended position to second retracted position; and actuating the lever to move a stylet of the medical instrument from a third extended position to a fourth retracted position. Actuating the lever comprises moving the lever from a first lever position spaced apart from a housing of the medical instrument to a second lever position closer to the housing
Claims21
1-13. (canceled)
A medical instrument comprising:
- a housing;
- a stylet having a portion in the housing and extending through a first end of the housing, the stylet being movable between an extended position and a retracted position;
- a stylet block attached to the stylet;
- a cannula coaxially receiving the stylet, the cannula having a portion in the housing, and extending through the first end of the housing, the cannula being movable between an extended position and a retracted position;
- a cannula block attached to the cannula;
- a lever connected to the housing such that the lever rotates about an axis at the first end of the housing;
- and
- a link member extending from a first end of the link member to an opposite second end of the link member, the first end of the link member pivotably attached to the lever and the second end of the link member free to rotate about the first end of the link member;
- wherein the second end of the link member is operable to engage the cannula block when the cannula is in its extended position and is operable to engage the stylet block when the cannula is in its retracted position.
6 more elements
A medical instrument, comprising:
- a housing;
- a stylet having a portion in the housing and extending through a first end of the housing, the stylet being movable between an extended position and a retracted position;
- a cannula coaxially receiving the stylet, the cannula having a portion in the housing and extending through the first end of the housing, the cannula being movable between an extended position and a retracted position;
- a lever connected to the housing such that the lever rotates about an axis at the first end of the housing;
- and
- a link member extending from a first end of the link member to an opposite second end of the link member, the first end of the link member pivotably attached to the lever and the second end of the link member free to rotate about the first end of the link member;
- wherein the second end of the link member is operable to apply force to the cannula when the cannula is in its extended position and is operable to apply force to the stylet when the cannula is in its retracted position.
4 more elements
A medical instrument, comprising:
- a housing;
- a stylet having a portion in the housing and extending through a first end of the housing, the stylet being movable between an extended position and a retracted position;
- a cannula coaxially receiving the stylet, the cannula having a portion in the housing and extending through the first end of the housing, the cannula being movable between an extended position and a retracted position;
- and
- a lever connected to the housing by a link with a pin such that the lever rotates about an axis at the first end of the housing,
- wherein the medical instrument is configured such that the lever is capable of sequentially moving the cannula from its extended position to its retracted position and moving the stylet from its extended position to its retracted position.
3 more elements
Dependencies are inferred from the claim text.