CORING AND AMPUTATION DEVICES, SYSTEMS, AND METHODS
A method for removing tissues may comprise disposing a tissue resection device at a target tissue site, causing the tissue resection device to resect a core of tissue from the target tissue site, removing the core of tissue from the body, wherein the removing the core of tissue from the body creates a core cavity at the target tissue site.
1 . A tissue coring and amputating system comprising:
a coring device comprising:
a first clamping element comprising a helical coil,
a second clamping element, the second clamping element being positioned to oppose at least a portion of the first clamping element,
a first electrode and a second electrode configured for the delivery of radiofrequency energy to an area adjacent one or more of the first clamping element and the second clamping element to seal tissue, and
a cutting element configured for the transection of at least a portion of the sealed tissue to form a core of tissue; and
an amputating device comprising:
a second cutting element configured for the amputation of at least the core of tissue.
2 . A method of using the tissue coring and amputating system of claim 1 , the method comprising:
disposing the coring device adjacent a target tissue site;
rotating the helical coil into the target tissue site;
causing the first clamping element and the second clamping element to clamp against each other;
causing radiofrequency energy to energize one or more of the first electrode and the second electrode;
causing the cutting element to core at least a portion of the target tissue site;
removing the coring device and a core of tissue;
disposing the amputation device adjacent the target tissue site; and
causing the amputation device to amputate at least a portion of the target tissue site.
3 . The tissue coring and amputating system of claim 1 , further comprising:
a first actuator operable to actuate the first or second clamping element to apply mechanical compression to tissue; and
a second actuator operable to actuate the cutting element to transect tissue.
4 . The tissue coring and amputating system of claim 1 , wherein the helical coil comprises first and second contiguous coil segments.
5 . The tissue coring and amputating system of claim 4 , wherein the first coil segment comprises a generally planar open ring.
6 . The tissue coring and amputating system of claim 5 , wherein the first coil segment is helical and has a pitch of zero.
7 . The tissue coring and amputating system of claim 4 , wherein the second coil segment is helical and has a non-zero pitch.
8 . The tissue coring and amputating system of claim 7 , wherein the second coil segment has a variable pitch.
9 . The tissue coring and amputating system of claim 4 , wherein the first coil segment is helical and has a first pitch and the second coil segment is helical and has a second pitch, and at least one of the first and second pitches is variable.
10 . The tissue coring and amputating system of claim 1 , wherein the first electrode is provided by at least a portion of the first clamping element.
11 . The tissue coring and amputating system of claim 1 , wherein the second electrode is provided by at least a portion of the second clamping element.
12 . The tissue coring and amputating system of claim 1 , wherein the helical coil includes a blunt tip.
13 . The tissue coring and amputating system of claim 1 , wherein the first and second electrodes have surface profiles that are substantially matching.
14 . The tissue coring and amputating system of claim 1 , wherein at least a portion of the cutting element comprises a sharpened edge.
15 . The tissue coring and amputating system of claim 1 , wherein the cutting element comprises at least one electrode configured for the delivery of radiofrequency energy.
16 . The tissue coring and amputating system of claim 1 , wherein the cutting element comprises an ultrasonic blade.
17 . The tissue coring and amputating system of claim 1 , wherein at least a portion of the second cutting element comprises a sharpened edge.
18 . The tissue coring and amputating system of claim 1 , wherein the second cutting element comprises at least one electrode configured for the delivery of radiofrequency energy.
19 . The tissue coring and amputating system of claim 1 , wherein the second cutting element comprises an energized wire.
20 . The tissue coring and amputating system of claim 1 , wherein the second cutting element comprises a suture.
21 . The tissue coring and amputating system of claim 1 , further comprising an actuator operable to actuate the second cutting element to transect tissue.