Selective tissue removal treatment device
This disclosure describes techniques and devices for improvement of surgical outcomes for tissue removal surgeries. A surgical instrument with adjustable and selective resection is described. The disclosed devices and methods allow selective tissue removal.
1 . A surgical instrument comprising:
a handle for gripping;
an insertion end comprising a first lumen and a second lumen, the first lumen and the second lumen each comprising:
a distal end, the distal end including a closed terminal end portion; and
a proximal end attached to the handle;
the first lumen extending along a longitudinal axis of the surgical instrument, the first lumen comprising:
a first inner bore; and
a nozzle formed in a side wall of the first lumen proximate to the closed terminal end portion of the first lumen, the nozzle configured to enable a jet of fluid to exit the nozzle; and
the second lumen extending parallel to the first lumen along the longitudinal axis, the second lumen comprising:
a second inner bore; and
an aperture abutting and opposite the nozzle.
2 . The surgical instrument of claim 1 , further comprising a power source connectable to an open proximal terminal end of the first lumen.
3 . The surgical instrument of claim 2 , wherein the power source is a pump assembly configured to pump a fluid into the first lumen to form the jet of fluid exiting the nozzle.
4 . The surgical instrument of claim 3 , wherein the jet of fluid exiting the nozzle of the first lumen, entering into the aperture of the second lumen creates a cutting and suction force.
5 . The surgical instrument of claim 4 , wherein a pressure of the jet of fluid ranges from 2,395 psi to 14,065 psi.
6 . The surgical instrument of claim 5 , wherein the pressure of the jet of fluid ranges from 2,395 psi to 12,020 psi.
7 . The surgical instrument of claim 1 , wherein the fluid comprises water.
8 . The surgical instrument of claim 1 , wherein an open proximal terminal end is connectable to an energy source console.
9 . The surgical instrument of claim 8 , wherein the energy source console is configured to drive the surgical instrument with an adjustable energy flow to adjust a cutting and suction force.
10 . The surgical instrument of claim 1 , wherein the closed terminal end portion of the second lumen is shaped to move through tissue of a patient.
11 . The surgical instrument of claim 1 , wherein a surgical site is a joint.
12 . The surgical instrument of claim 11 , wherein the surgical site is one of an elbow, shoulder, knee, hip, ankle, or wrist joint.
13 . The surgical instrument of claim 12 , wherein a first tissue type is pathologic tissue.
14 . The surgical instrument of claim 1 , wherein the nozzle is 0.008 inches in diameter.
15 . The surgical instrument of claim 1 , wherein the aperture is 0.065 inches in length.
16 . The surgical instrument of claim 1 , wherein the surgical instrument is configured to create a cutting force and a suction force at the aperture of the second lumen, the suction force selectively drawing a first tissue type from a plurality of different tissue types located in a surgical site into the aperture and the cutting force cutting the first tissue type.
17 . The surgical instrument of claim 1 , wherein the second inner bore extends from an open proximal terminal end of the second lumen to the closed terminal end portion of the second lumen.
18 . The surgical instrument of claim 1 , wherein the second inner bore is greater in diameter than the first inner bore.