PATENT CLAIM ANALYSIS

Application Number: 16168087
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["606", "159000"]

Abstract:
Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that fully or partially spirals around the drive shaft. In some embodiments, a distal stability element with a center of mass aligned with the longitudinal axis is fixedly mounted to the drive shaft.

Claim (Index 1):
A rotational atherectomy device for performing rotational atherectomy to remove stenotic lesion material from a blood vessel of a patient, the device comprising:\n an elongate flexible drive shaft defining a longitudinal axis; an array of at least three spherical abrasive elements fixed to the drive shaft and space apart from one another by a first separation distance, the spherical abrasive elements fixed to the drive shaft such that a center of mass of each abrasive element is offset from the longitudinal axis, the center of mass of a first spherical abrasive element of the spherical abrasive elements being offset from the longitudinal axis at a first radial angle, the center of mass of a second spherical abrasive element of the spherical abrasive elements being offset from the longitudinal axis at a second radial angle that differs from the first radial angle, the center of mass of a third spherical abrasive element of the spherical abrasive elements being offset from the longitudinal axis at a third radial angle that differs from the first radial angle and the second radial angle; and a metallic concentric abrasive element having a cylindrical shape with an abrasive exterior coating and a center of mass aligned with the longitudinal axis, the metallic concentric abrasive element fixed to the drive shaft and distally spaced apart from a distal-most spherical abrasive element of the spherical abrasive elements by a distal separation distance.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 97.0
- Lexical Diversity: 1.63095
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15440402', '16146809', '16142583', '15091919', '16150003']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.804785383764831
- 35 USC 102 Novelty (BERT): 0.600381811514043
- Combined Prediction Score: 0.7843450265397522
- Mean Citation Score: 476.444576
- Max Citation Score: 554.9749
- Similarity Product: 528.0255043952467

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

Dataset: test