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US 11,589,846 B2Granted
Dual needle core biopsy instrument
OwnerRobert K Ackroydinventor
Life of this patent
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Abstract
The embodiments presented herein present a single needle core biopsy instrument and modification required that convert the single needle core biopsy instrument to a dual needle core biopsy instrument. Depending on the design, the dual needle core biopsy instrument permits the simultaneous extraction of tissue or bone specimens taken at between 0.1 mm and 3 mm apart.
Claims10
A dual needle core biopsy instrument comprising:
- a dual needle case;
- a dual cannula component mounted in the dual needle case;
- the dual cannula component comprising dual cannula cylinders, the dual cannula cylinders being a contiguous member having a pair of substantially parallel bores, the bores extending the length of the dual cannula cylinders to create a first cannula having a lumen and a tip at a distal end thereof and a second cannula having a lumen and a tip at a distal end thereof, the first cannula lumen separated from the second cannula lumen by a central portion, the central portion being a shared wall of the first cannula and the second cannula;
- and
- a dual needle component comprising a first biopsy needle and a second biopsy needle, the first biopsy needle having a tip and a receiving recess and positioned inside the dual cannula cylinders such that the first biopsy needle is enclosed within the first cannula lumen, and the second biopsy needle having a tip and a receiving recess and positioned inside the dual cannula cylinders such that the second biopsy needle is enclosed within the second cannula lumen.
2 more elements
A method of simultaneously collecting two biopsy samples comprising:
- a. providing a dual needle core biopsy instrument comprising:
- i. a dual needle case;
- ii. a dual cannula component mounted in the dual needle case;
- iii. the dual cannula component comprising:
- dual cannula cylinders, the dual cannula cylinders being a contiguous member having a pair of substantially parallel bores, the bores extending the length of the dual cannula cylinders to create a first cannula having a lumen and a tip at a distal end thereof and a second cannula having a lumen and a tip at a distal end thereof, the first cannula lumen separated from the second cannula lumen by a central portion, the central portion being a shared wall of the first cannula and the second cannula;
- iv. a dual needle component comprising a first biopsy needle and a second biopsy needle, the first biopsy needle having a tip and a receiving recess and positioned inside the dual cannula cylinders such that the first biopsy needle is enclosed within the first cannula lumen, and the second biopsy needle having a tip and a receiving recess and positioned inside the dual cannula cylinders such that the second biopsy needle is enclosed within the second cannula lumen;
- v. a first sliding button configured to control the movement of the dual cannula component;
- and
- vi. a trigger component comprising a second sliding button configured to control the movement of the dual needle component;
- b. providing tissue for sampling;
- c. sliding the first sliding button forward toward the tips of the first and second biopsy needles to lock the dual cannula cylinders in place;
- d. sliding the second sliding button forward toward the tips of the first and second biopsy needles to prepare the trigger component for firing;
- e. positioning the dual need core biopsy instrument in the desired location relative to the tissue;
- f. sliding the second sliding button backwards away from the tips of the first and second biopsy needles to release and fire the dual needle component such that the dual needle component is inserted into the tissue;
- g. depressing the first sliding button to fire the dual cannula cylinders such that the dual cannula cylinders encloses the tips of the first biopsy needle and the second biopsy needle and captures a first tissue sample in the receiving recess of the first biopsy needle and a second tissue sample in the receiving recess of the second biopsy needle;
- h. sliding the second sliding button forward toward the tips of the first and second biopsy needles to secure the dual needle component in place;
- and
- i. sliding the first sliding button backwards away from the tips of the first and second biopsy needles to retract the dual cannula cylinders a sufficient distance to reveal the first tissue sample and the second tissue sample.
15 more elements
Dependencies are inferred from the claim text.