Back to results
US 2003/0195436 A1Published application
Device for biopsy of tumors
AssigneeSanarus Medical, Inc.
InventorsKevin H. Van Bladel, Shigeru Tanaka, Daren L. Stewart
Life of this patent
Estimating the term…
Abstract
A device and method of use for securing and coring of tumors within the body during a biopsy of the tumor, specifically breast tumors. An adhesion probe for securing the tumor is described. The probe secures the tumor by piercing the tumor and providing a coolant to the distal tip to cool the tip. The cooled tip adheres to the tumor. A coring instrument adapted for cutting a core sample of the tumor is described. The instrument is provided with a cannula that can cut a core sample of the tumor. The instrument is adapted for use with the probe with the probe fitting within the cannula. The instrument can be used in conjunction with the probe to secure and core a sample of the tumor for biopsy.
Claims26
A system for securing a mass within the breast of a human patient, said system comprising:
- a rigid tube adapted for insertion into the body of the patient, said rigid tube having a proximal end, a distal end, a proximal segment, and a distal segment, said proximal segment having a larger outer diameter than the distal segment;
- said distal segment having a penetrating element adapted for piercing the mass;
- a gas supply tube for delivering a coolant to the distal end of the rigid tube, said gas supply tube being disposed within the rigid tube, extending to the distal end of the rigid tube and terminating in an orifice at the distal end of the rigid tube, thereby forming an annular lumen between the inner surface of the rigid tube and the outer surface of the gas supply tube, whereby the coolant gas may flow from the gas supply tube, through the annular lumen, and then be exhausted outside the body of the patient;
- said gas supply tube being sized relative to the rigid tube such that, when coolant is supplied to the rigid tube at a pressure within a predetermined pressure range, cooling of the distal end of the rigid tube is limited to the range of 0° C. to −60° C., whereby cells in the mass are adhered to the rigid tube without ablating the cells;
- a housing encasing the proximal end of the rigid tube and the gas supply tube, wherein the distal segment of the rigid tube is capable of extending into the body of the patient;
- and
- a canister of coolant gas operably attached to the gas supply tube, said canister also disposed within the housing.
4 more elements
A biopsy device for securing and coring a mass within the breast of a human patient during a biopsy of said mass, said biopsy device comprising:
- an adhesion probe comprising:
- a rigid tube adapted for insertion into the body of the patient, said rigid tube having a proximal end, a distal end, a proximal segment having a first outer diameter, a distal segment having a second outer diameter, the first outer diameter being larger than the second outer diameter;
- said distal segment adapted to be adhered to the mass within the breast;
- a cannula, having a proximal end and a distal end, adapted for use with the adhesion probe, and said cannula comprising:
- a tube having a lumen extending from the proximal end to the distal end, said lumen having an internal diameter approximately matching the first outer diameter of the proximal segment of the adhesion probe;
- said cannula adapted for insertion into the body of the patient over the adhesion probe;
- and
- said cannula being slidable over the adhesion probe.
5 more elements
A coring device for coring a sample of a mass within the breast of a human patient during a biopsy of the mass, said coring device comprising:
- a cannula adapted for insertion into the body of the patient, said cannula having a proximal opening and a distal opening in the cannula and a lumen extending through the cannula communicating from the proximal opening to the distal opening;
- a cannula rotating mechanism operably connected to the cannula to rotate the cannula relative to the device;
- a cannula translating mechanism operably connected to the cannula to move the cannula distally and proximally relative to the device;
- and
- a housing encasing the cannula, the rotating mechanism, and the translating mechanism, said housing having a proximal end and a distal end, the cannula extending from within the housing and out through the housing at the distal end of the housing.
2 more elements
A biopsy device for securing and coring a mass within the breast of a human patient during a biopsy of said mass, said biopsy device comprising:
- an adhesion probe comprising:
- a rigid tube adapted for insertion into the body of the patient, said rigid tube having a proximal end, a distal end, a proximal segment, and a distal segment, said proximal segment having a larger outer diameter than the distal segment;
- said distal segment having a sharp distal tip adapted for piercing the mass;
- a high pressure gas supply tube for delivering a coolant to the distal end of the rigid tube, said gas supply tube being disposed within the rigid tube, extending to the distal end of the rigid tube, and terminating in an orifice at the distal end of the rigid tube, thereby forming an annular lumen between the inner surface of the rigid tube and the outer surface of the gas supply tube for exhausting the coolant from the probe;
- a coring device having a proximal end and a distal end, said coring device adapted for use with the probe, said coring device comprising:
- a cannula adapted for insertion into the body of the patient, said cannula having a lumen extending through the cannula and defining a proximal opening and a distal opening in the cannula;
- a cannula rotating mechanism operably connected to the cannula;
- a cannula translating mechanism operably connected to the cannula;
- a housing encasing the cannula, the cannula rotating mechanism, and the cannula translating mechanism, said housing having a proximal end and a distal end, the cannula extending from within the housing and out through the housing at the distal end of the housing;
- and
- a snap fitting disposed at the proximal end of the housing for securing the adhesion probe to the coring device, said snap fitting having an inlet communicating with the lumen of the cannula;
- wherein the adhesion probe is fitted through the lumen from the proximal opening of the cannula;
- wherein the adhesion probe is secured to the snap fitting of the coring device;
- and
- wherein the cannula is slidable over the adhesion probe.
12 more elements
A biopsy instrument for securing and coring a mass within the breast of a human patient during a biopsy of said mass, said biopsy instrument comprising:
- an adhesion probe comprising:
- a rigid tube adapted for insertion into the body of the patient, said rigid tube having a proximal end, a distal end, a proximal segment, and a distal segment, said proximal segment having a larger outer diameter than the distal segment;
- said distal segment having a sharp distal tip adapted for piercing the mass;
- a high pressure gas supply tube for delivering a coolant to the distal end of the rigid tube, said gas supply tube being disposed within the rigid tube, extending to the distal end of the rigid tube, and terminating in an orifice at the distal end of the rigid tube, thereby forming an annular lumen between the inner surface of the rigid tube and the outer surface of the gas supply tube for exhausting the coolant from the probe;
- a coring instrument, having a proximal end and a distal end, adapted for use with the probe, said coring instrument comprising:
- a cannula adapted for insertion into the body of the patient, said cannula having a lumen extending through the cannula and defining a proximal opening and a distal opening in the cannula;
- a cannula translating mechanism operably connected to the cannula;
- a housing encasing the cannula and the cannula translating mechanism, said housing having a proximal end and a distal end, the cannula extending from within the housing and out through the housing at the distal end of the housing;
- and
- a fitting disposed at the proximal end of the housing for securing the adhesion probe to the coring device, said fitting having an inlet adapted for communicating with the lumen of the cannula;
- said adhesion probe fitted through the lumen from the proximal opening of the cannula;
- said adhesion probe secured to the fitting of the coring instrument.
9 more elements
A biopsy instrument for securing and coring a mass within the breast of a human patient during a biopsy of said mass, said biopsy instrument comprising:
- an adhesion probe adapted for insertion into body tissue and for adhesion to body tissue;
- a coring mechanism adapted for use with the adhesion probe, said coring mechanism having a distal end and proximal end, said coring mechanism comprising:
- a cannula adapted for insertion into the body of the patient, said cannula having lumen extending through the cannula and defining a proximal opening and a distal opening in the cannula;
- a cannula translating mechanism operably connected to the cannula;
- and
- a cannula rotating mechanism operably connected to the cannula;
- a housing encasing the cannula translating mechanism and the cannula rotating mechanism, said housing having a proximal end and a distal end, the cannula extending from within said housing and out through the distal end of said housing;
- and
- wherein said adhesion probe is fitted through the lumen of the cannula.
6 more elements
A device for obtaining a tissue sample from the body of a patient, said device comprising:
- an adhesion probe adapted for insertion into the body, said adhesion probe being operable to adhere to tissue within the body;
- a cannula disposed about the adhesion probe, said cannula being slidable over the adhesion probe;
- and
- an actuator comprising a cylinder, a piston disposed within the cylinder, and an actuator rod, said piston being longitudinally movable within the cylinder in response to application of pressure of a vacuum to the cylinder, said actuator rod being longitudinally fixed to the piston, said piston and actuator rod being longitudinally fixed to the cannula;
- wherein the actuator is operable to cause the cannula to slide longitudinally over the adhesion probe.
2 more elements
A biopsy instrument for securing and coring a mass within the breast of a human patient during a biopsy of said mass, said biopsy instrument comprising:
- an adhesion probe comprising:
- a rigid tube adapted for insertion into the body of the patient, said rigid tube having a proximal end, a distal end, a proximal segment, and a distal segment, said proximal segment having a larger outer diameter than the distal segment;
- said distal segment having a sharp distal tip adapted for piercing the mass;
- and
- a high pressure gas supply tube for delivering a coolant to the distal end of the rigid tube, said gas supply tube being disposed within the rigid tube, extending to the distal end of the rigid tube, and terminating in an orifice at the distal end of the rigid tube, thereby forming an annular lumen between the inner surface of the rigid tube and the outer surface of the gas supply tube for exhausting the coolant from the probe;
- a coring mechanism, having a proximal end and a distal end, adapted for use with the probe, said coring mechanism comprising:.
- a cannula adapted for insertion into the body of the patient, said cannula having a lumen extending through the cannula and defining a proximal opening and a distal opening in the cannula;
- a cannula translating mechanism operably connected to the cannula;
- and
- a cannula rotating mechanism operably connected to the cannula;
- a housing encasing the cannula, the cannula translating mechanism, and the cannula rotating mechanism, said housing having a proximal end and a distal end, the cannula extending from within said housing and out through the distal end of said housing;
- a fitting disposed at the proximal end of the housing, said fitting having an inlet adapted for communicating with the high pressure gas supply tube;
- and
- said adhesion probe fitted through the lumen of the cannula.
11 more elements
A method of securing a mass in the body of a patient, said method comprising;
- providing a system for securing a mass within the body of a patient, said system comprising:
- a rigid tube adapted for insertion into the body of the patient, said rigid tube having a proximal end, a distal end, a proximal segment, and a distal segment, said proximal segment having a larger outer diameter than the distal segment;
- said distal segment having a penetrating element adapted for piercing the mass;
- a coolant supply tube for delivering a coolant to the distal end of the rigid tube, said coolant supply tube being disposed within the rigid tube, extending to the distal end of the rigid tube, and terminating in an orifice at the distal end of the rigid tube, thereby forming an annular lumen between the inner surface of the rigid tube and the outer surface of the coolant supply tube, whereby the coolant may flow from the coolant supply tube, through the annular lumen, and then be exhausted outside the body of the patient;
- said coolant supply tube being sized relative to the rigid tube such that, when coolant gas is supplied to the rigid tube at a pressure within a predetermined pressure range, cooling of the distal end of the rigid tube is limited to the range of 0° C. to −60° C., whereby cells in the mass are adhered to the rigid tube without ablating the cells;
- a housing encasing the proximal end of the rigid tube and the gas supply tube, wherein the distal segment of the rigid tube is capable of extending into the body of the patient;
- and
- an inlet disposed in the housing and communicating with the coolant supply tube, wherein a source of coolant may be removably attached to the inlet;
- providing a coolant source;
- connecting said coolant source to the inlet;
- inserting the rigid tube into the body of the patient so that the distal segment of the rigid tube is disposed at least partially in the mass;
- and
- directing the coolant from the coolant source to the inlet to cool the distal segment of the rigid tube and to cool the mass immediately surrounding the distal segment of the rigid tube.
10 more elements
Dependencies are inferred from the claim text.