Biopsy with marker device and method
View Patent ↗A biopsy device to remove tissue from a patient and place a marker in the patient. The device includes a needle with an opening where tissue enters. The tissue which enters the opening is cut and stored in the device. After the desired number of tissue samples are obtained, a marker is released from the same needle opening. The biopsy sampling and marker release are integrated for one hand operation in a single device.
1. A biopsy apparatus comprising:
a handpiece, wherein a needle extends distally from the handpiece;
the needle comprises a first lumen configured to receive a cutter, and a transverse aperture in fluid communication with the first lumen;
the cutter is translatable within the first lumen to sever a tissue protruding through the transverse aperture, wherein the cutter defines a second lumen;
a vacuum pump operable to draw the tissue proximally through the second lumen;
a marker positioned within a tube; means to push the marker out the transverse aperture;
the tube is axially aligned with the second lumen while the tissue is severed; and the tube is axially aligned and abutted with the cutter while the marker is pushed out the transverse aperture, and
wherein marker is axially aligned with the second lumen while the tissue is severed, while the tissue is drawn proximally through the second lumen, and while the the cutter while the tissue is severed.
2. The apparatus of claim 1 wherein the means to push the marker comprises a push rod, wherein the push rod extends outside the handpiece and opposite relative to the needle.
3. The apparatus of claim 1 wherein the means to push the marker comprises a pressure pump.
4. The apparatus of claim 3 wherein the biopsy apparatus is configured for one hand operation from when the tissue is severed through when the marker is pushed out the transverse aperture.
5. A biopsy apparatus comprising:
a needle comprising: a closed tip, a first lumen configured to receive a cutter, a transverse aperture in fluid communication with the first lumen, wherein the transverse aperture is proximal to the closed tip, an inclined surface at a distal end of a second lumen, wherein the inclined surface terminates at the transverse aperture;
a handpiece, wherein the needle extends distally from the handpiece;
wherein the cutter is translatable within the first lumen to sever a tissue protruding through the transverse aperture and surround the inclined surface, wherein the cutter defines the second lumen;
a vacuum pump operable to draw the tissue proximally through the second lumen;
a tube axially aligned with the second lumen, wherein the tube defines a third lumen;
a pressure pump operable to push a marker out the third lumen, through the second lumen, against the inclined surface and out the transverse aperture; and
wherein the marker is axially aligned with the second lumen while the tissue is severed, while the tissue is drawn proximally through the second lumen, and while the marker is pushed out the third lumen.
6. The apparatus of claim 5 wherein the tube is axially aligned with the second lumen while the tissue is severed; and wherein the tube is axially aligned and abutted with the cutter while the marker is pushed out the transverse aperture.
7. The apparatus of claim 6 wherein the biopsy apparatus is operable with one hand of a user from when the tissue is severed through when the marker is pushed out the transverse aperture.
8. The apparatus of claim 7 wherein the tube is attached to the handpiece while the tissue is severed and while the marker is pushed out the transverse aperture.
9. The apparatus of claim 8 wherein the handpiece further comprises the vacuum pump and the pressure pump.
10. The apparatus of claim 9 wherein the marker comprises a marker clip and a pledget.
11. A method of obtaining a tissue and placing a marker, the method comprising:
providing a handpiece, wherein a needle extends distally from the handpiece, wherein the needle comprises a first lumen and a transverse aperture in fluid communication with the first lumen;
causing the tissue to protrude through the transverse aperture with a vacuum pump;
translating a cutter within the first lumen, thereby severing the tissue, wherein the cutter defines a second lumen;
drawing the tissue proximally through the second lumen with the vacuum pump, providing a tube axially aligned with the second lumen, wherein the tube is removably attached to the handpiece;
pushing the marker out the tube, through the second lumen and out the transverse aperture; and
wherein the marker is axially aligned with the second lumen while the tissue is severed, while the tissue is drawn proximally through the second lumen, and while the marker is pushed out the tube.
12. The method of claim 11 wherein an inclined surface is located at a distal end of the second lumen, wherein the inclined surface terminates at the transverse aperture; and an end of the cutter translates past and surrounds the inclined surface.
13. The method of claim 12 further comprising a pressure pump and a drive rod; wherein the pressure pump is operable to push the drive rod, wherein the drive rod pushes the marker; and wherein the drive rod jams against the inclined surface.
14. The method of claim 13 wherein the handpiece further comprises the vacuum pump and the pressure pump.
15. The method of claim 11 wherein the marker is pushed with a push rod, wherein the push rod extends outside the handpiece and opposite relative to the needle.
16. The method of claim 11 wherein the tube is axially aligned with the second lumen while the tissue is severed; and wherein the tube is axially aligned and abutted with the cutter while the marker is pushed out the transverse aperture.
17. The method of claim 11 wherein the tube is attached to the handpiece while the tissue is severed and while the marker is pushed out the transverse aperture.
18. The method of claim 11 wherein the cutter and the tube have the same inner diameter.