Tissue sampling device
OwnerMark G. Gordoninventor
Life of this patent
Estimating the term…
Abstract
A tissue sampling device for retrieving multiple tissue samples from a body has a catheter and a tissue collector formed proximate the distal end of the catheter. The tissue collector is configured so as to facilitate the removal of a tissue sample from its in-situ anatomical location and so as to capture the tissue sample within the first lumen of the catheter. A passage provides fluid communication between a first lumen within which the collected tissue sample is disposed and a second lumen into which a fluid may be caused to flow. Flowing the fluid distally through the second lumen moves the tissue sample proximally through the first lumen so as to facilitate the collection of a plurality of such tissue samples.
Claims33
A tissue sampling device for retrieving multiple tissue samples from a body, the tissue sampling device comprising:
- a) a catheter having proximal and distal ends, the catheter comprising first and second lumens;
- b) a tissue collector formed proximate the distal end of the catheter for removing a tissue sample from its in-situ anatomical location and for capturing the tissue sample within the first lumen of the catheter;
- c) a passage disposed proximate the distal end of the catheter for providing fluid communication between the first and second lumens, the passage being configured such that fluid flowed distally through the second lumen moves the tissue sample proximally through the first lumen;
- and
- d) wherein moving the tissue sample proximally through the first lumen facilitates collection of a plurality of such tissue samples.
A tissue sampling device for retrieving multiple tissue samples from a body, the tissue sampling device comprising:
- a) a catheter having first and second lumens;
- b) a blade formed upon the distal end of the catheter;
- c) a cap hingedly attached to the distal end of the catheter proximate the blade, the cap having an open position wherein a tissue sample can be urged into the first lumen of the catheter and having a closed position in which the cap abuts the blade and seals the catheter;
- d) an actuator in mechanical communication with the cap for moving the cap from the open position to the closed position thereof;
- e) a passage disposed proximate a distal end of the catheter for providing fluid communication between the first and second lumens, the passage being configured such that fluid flowed through the second lumen causes the tissue sample to move proximally through the first lumen;
- and
- f) wherein causing the actuator to move the cap from the open position to the closed position thereof causes the blade to cut the tissue sample from its in-situ anatomical location so as to capture the tissue sample within the catheter and wherein moving the tissue sample proximally through the first lumen facilitates collection of a plurality of such tissue samples.
A tissue sampling device for retrieving multiple tissue samples from a body, the tissue sampling device comprising:
- a) a catheter having a proximal end, a distal end, and a lumen;
- b) a sheath having a proximal end, a distal end, and a lumen, the catheter being slidably disposed within the lumen of the sheath;
- c) a cap closing the distal end of the inner catheter;
- d) an opening formed in the catheter proximate the distal end thereof;
- and
- e) a blade formed at the distal end of the sheath proximate the cap such that sliding the sheath distally with respect to the inner cannula causes the cap to close and abut the blade, which results in cutting of tissue extending from its in-situ anatomical position through the opening formed in the catheter;
- f) a passage disposed proximate the distal end of the catheter for providing fluid communication between the first and second lumens, the passage being configured such that fluid flowed through the lumen causes the tissue sample to move proximally through the first lumen;
- and
- g) wherein moving the tissue sample proximally through the first lumen facilitates collection of a plurality of such tissue samples.
A method for collecting multiple tissue samples from a body, the method comprising the steps of:
- a) positioning a distal end of a catheter proximate tissue to be sampled;
- b) removing a tissue sample from its in-situ anatomical location and capturing the tissue sample within the catheter;
- c) flowing a fluid through the catheter so as to cause the tissue sample to move proximally;
- and
- d) wherein moving the tissue sample proximally through the catheter facilitates collection of a plurality of such tissue samples.
Dependencies are inferred from the claim text.