PATENT CLAIM ANALYSIS

Application Number: 16198425
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["623", "002110"]

Abstract:
Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating an abrasive element within the vessel. The abrasive element can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly. In particular embodiments, the handle assembly includes a compressed gas driven turbine member that drives rotation of the drive shaft. The turbine member can be rotatably attached to a carriage that is longitudinally translatable in relation to a housing of the handle assembly. The handle assembly can include a latch mechanism that when actuated allows the carriage to translate to a proximal-most position. While the carriage is in the proximal-most position, an open pathway is created so that a guidewire can be slidably passed through the handle assembly and a lumen of the drive shaft.

Claim (Index 16):
A method of performing a rotational atherectomy on a targeted lesion of a patient, the method comprising:\n advancing a drive shaft assembly of a rotation atherectomy device along a guide wire disposed within a vasculature of the patient so that a distal end of the drive shaft assembly is advanced toward the targeted lesion, the drive shaft assembly comprising: a sheath comprising an elongate tubular member defining a lumen therethrough; a torque-transmitting coil slidably disposed within the lumen and extending distally from a handle assembly positioned at a proximal end of the torque-transmitting coil, the torque-transmitting coil configured to rotate in response to rotation of a rotatable member housed within the handle assembly; and a set of at least three eccentric abrasive elements attached to a distal end portion of the torque-transmitting coil, the set of at least three eccentric abrasive elements comprising a distal-most eccentric abrasive element, a proximal-most, and one or more intermediate eccentric abrasive elements, and both the proximal-most eccentric abrasive element and the distal-most eccentric abrasive element are smaller in maximum outer diameter than that of all of the intermediate eccentric abrasive elements; and a distal stability element fixed to the torque-transmitting coil and having a center of mass that is axially aligned with a longitudinal axis of the torque-transmitting coil; and rotating the rotatable member to drive rotation of the torque-transmitting coil such that the one or more abrasive elements contact the targeted lesion.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 1.88462
- Patent Class: 623.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15091919', '16197125', '16192431', '15440402', '16196894']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.849350441856341
- 35 USC 102 Novelty (BERT): 0.5838058567128236
- Combined Prediction Score: 0.8227959833419892
- Mean Citation Score: 504.199152
- Max Citation Score: 562.4544
- Similarity Product: 475.3534380924224

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test