Suction sleeve and interventional devices having such a suction sleeve
First Claim
Patent Images
1. A soft tissue interventional device, comprising:
- a handle;
a shaft defining a proximal end and a distal end, the proximal end being coupled to the handle;
a lone electrode coupled near the distal end of the shaft, the electrode being configured to be energized with RF energy to cut tissue, anda suction sleeve, the suction sleeve and the shaft being freely rotatable relative to one another such that the shaft is freely rotatable within a stationary suction sleeve and such that the suction sleeve is freely rotatable about a stationary shaft, the suction sleeve including an outer surface and an inner surface that faces and is disposed coaxially around the shaft so as to define an interstitial space between the inner surface and the shaft, the suction sleeve being disposed only between the proximal end of the shaft and the electrode, the outer surface of the suction sleeve defining a plurality of openings that are in fluid communication with the interstitial space, the suction sleeve defining a suction port adjacent the proximal end of the shaft, the suction port being disposed at a non-zero angle relative to a longitudinal axis of the shaft and being configured to enable liquid and gases collected near the electrode to be sucked into the interstitial space through at least one of the plurality of openings and to be evacuated out through the suction port.
7 Assignments
0 Petitions
Accused Products
Abstract
A suction sleeve is configured to couple to the shaft of an RF device to evacuate hot gasses, fluids and/or other aspirates. The suction sleeve may be configured to be disposed coaxially around the shaft between the first end of the shaft and the work element (e.g., an RF cutting element) thereof. The suction sleeve defines a suction port and a plurality of openings near the work element, and is configured to enable suction in through the plurality of openings and out through the suction port.
174 Citations
44 Claims
-
1. A soft tissue interventional device, comprising:
-
a handle; a shaft defining a proximal end and a distal end, the proximal end being coupled to the handle; a lone electrode coupled near the distal end of the shaft, the electrode being configured to be energized with RF energy to cut tissue, and a suction sleeve, the suction sleeve and the shaft being freely rotatable relative to one another such that the shaft is freely rotatable within a stationary suction sleeve and such that the suction sleeve is freely rotatable about a stationary shaft, the suction sleeve including an outer surface and an inner surface that faces and is disposed coaxially around the shaft so as to define an interstitial space between the inner surface and the shaft, the suction sleeve being disposed only between the proximal end of the shaft and the electrode, the outer surface of the suction sleeve defining a plurality of openings that are in fluid communication with the interstitial space, the suction sleeve defining a suction port adjacent the proximal end of the shaft, the suction port being disposed at a non-zero angle relative to a longitudinal axis of the shaft and being configured to enable liquid and gases collected near the electrode to be sucked into the interstitial space through at least one of the plurality of openings and to be evacuated out through the suction port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for cutting a specimen of soft tissue, comprising the steps of:
-
providing a device including a handle;
a shaft defining a proximal end and a distal end, the proximal end being coupled to the handle;
a lone electrode coupled near the distal end of the shaft, the electrode being configured to be energized with RF energy to cut tissue, and a suction sleeve, the suction sleeve and the shaft being freely rotatable relative to one another such that the shaft is freely rotatable within a stationary suction sleeve and such that the suction sleeve is freely rotatable about a stationary shaft, the suction sleeve including an outer surface and an inner surface that faces and is disposed coaxially around the shaft so as to define an interstitial space between the inner surface and the shaft, the suction sleeve being disposed only between the proximal end of the shaft and the electrode, the outer surface of the suction sleeve defining a plurality of openings that are in fluid communication with the interstitial space, the suction sleeve defining a suction port adjacent the proximal end of the shaft, the suction port being disposed at a non-zero angle relative to a longitudinal axis of the shaft and being configured to enable liquid and gases collected near the electrode to be sucked into the interstitial space through at least one of the plurality of openings and to be evacuated out through the suction port;inserting the device in the soft tissue; applying RF energy to the electrode; cutting the tissue specimen using the energized electrode, and applying suction to the suction port during the cutting step.
-
-
16. A soft tissue interventional device, comprising:
-
a handle; a shaft defining a proximal end and a distal end, the proximal end being coupled to the handle; a single work element coupled near the distal end of the shaft, the work element being configured to be energized with RF energy to cut tissue, and a suction sleeve, the suction sleeve and the shaft being freely rotatable relative to one another such that the shaft is freely rotatable within a stationary suction sleeve and such that the suction sleeve is freely rotatable about a stationary shaft, the suction sleeve including an inner surface that faces and is disposed coaxially around the shaft so as to define an interstitial space between the inner surface and the shaft, the suction sleeve being disposed only between the proximal end of the shaft and the single work element, the suction sleeve defining a suction port adjacent the proximal end of the shaft, the suction port being disposed at a non-zero angle relative to a longitudinal axis of the shaft, the suction sleeve further defining a plurality of openings in fluid communication with the interstitial space such that liquid and gases collected near the work element are sucked into the interstitial space through the plurality of openings and are evacuated through the suction port, the suction sleeve further defining a first external surface in which at least one of the plurality of openings is defined and a second external surface, disposed at a non-zero angle relative to the first external surface, in which at least one of the plurality of openings is defined. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A soft tissue interventional device, comprising:
-
a handle; a shaft defining a proximal end and a distal end, the proximal end being coupled to the handle; a single work element coupled near the distal end of the shaft, the work element being configured to be energized with RF energy to cut tissue, and a suction sleeve including a first portion, a second portion and an inner surface that faces and is disposed coaxially around the shaft so as to define an interstitial space between the inner surface and the shaft, the suction sleeve being disposed only between the proximal end of the shaft and the single work element, the suction sleeve defining a suction port and being configured to enable suction of liquid and gases collected near the work element into the interstitial space and out through the suction port, the second portion being configured to telescope within the first portion such that the second portion is configured to slide coaxially relative to the first portion to assume a first position in which the sleeve has a first length and a second position in which the length of the sleeve is greater than the first length. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
-
Specification