Devices and methods for tissue severing and removal
First Claim
1. A tissue severing device, comprising:
- a guide comprising two co-linear, co-extensive guide lumens longitudinally extending from a proximal region to a distal terminus along a guide axis, wherein the guide lumens have co-extensive distal segments terminating in distal tips and the angle of each distal segment in relation to the guide axis is generally fixed;
a cutting tool contained within the guide and capable of forming a cutting loop extending from the distal tips of the two guide lumens, said cutting loop having a loop extension axis defined by the direction in which the cutting loop extends; and
an extension means for controlling the degree to which the cutting loop extends from the guide.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to devices and methods that enhance the accuracy of lesion excision, through severing, capturing and removal of a lesion within soft tissue. Furthermore, the present invention relates to devices and methods for the excision of breast tissue based on the internal anatomy of the breast gland. A tissue severing device generally comprises a guide having at least one lumen and a cutting tool contained within the lumen. The cutting tool is capable of extending from the lumen and forming an adjustable cutting loop. The cutting loop may be widened or narrowed and the angle between the loop extension axis and the guide axis may be varied. Optional tissue marker and tissue collector may additionally be provided. A method for excising a mass of tissue from a patient is also provided. The device and method are particularly useful for excising a lesion from a human breast, e.g., through the excision and removal of a part of a breast lobe, an entire breast lobe or a breast lobe plus surrounding adjacent tissue.
176 Citations
72 Claims
-
1. A tissue severing device, comprising:
-
a guide comprising two co-linear, co-extensive guide lumens longitudinally extending from a proximal region to a distal terminus along a guide axis, wherein the guide lumens have co-extensive distal segments terminating in distal tips and the angle of each distal segment in relation to the guide axis is generally fixed;
a cutting tool contained within the guide and capable of forming a cutting loop extending from the distal tips of the two guide lumens, said cutting loop having a loop extension axis defined by the direction in which the cutting loop extends; and
an extension means for controlling the degree to which the cutting loop extends from the guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
-
-
72-123. -123. (Canceled)
Specification