PATENT CLAIM ANALYSIS

Application Number: 15906067
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-07
Patent Classification: ["606", "159000"]

Abstract:
The invention provides a rotational atherectomy device having, in various embodiments, a flexible, elongated, rotatable drive shaft with a system of eccentric abrading heads attached thereto. At least part of the eccentric enlarged abrading heads in the system have a tissue removing surface—typically an abrasive surface. In certain embodiments, the abrading heads may be at least partially hollow. Preferably the eccentric enlarged abrading heads have centers of mass spaced radially from the rotational axis of the drive shaft, facilitating the ability of the system of eccentric abrading heads to work together to open the stenotic lesion to a diameter substantially larger than the outer resting diameter of the enlarged abrading heads when operated at high speeds. Therefore, certain embodiments comprise a system having unbalanced centers of mass to not only stimulate greater rotational diameters but also arranged in a manner whereby a debris-removing augering effect occurs. Alternatively, other embodiments may comprise systems having abrading heads with balanced centers of mass.

Claim (Index 20):
A rotational atherectomy device, comprising:\n a flexible, elongated and rotatable drive shaft, the drive shaft comprising a rotational axis; an eccentric system of abrasive elements comprising: a first abrasive element fixedly disposed along the drive shaft and comprising a resting diameter a mass and a center of mass having a location that is spaced radially away from the rotational axis of the drive shaft in a direction along a first longitudinal plane; a second abrasive element fixedly disposed along the drive shaft and spaced proximally from the first abrasive element and comprising a resting diameter, a mass and a center of mass having a location that is spaced radially away from the rotational axis of the drive shaft in a direction along a second longitudinal plane that is spaced rotationally from the first longitudinal plane; a third abrasive element fixedly disposed along the drive shaft and spaced distally from the first abrasive element and comprising a mass, a resting diameter and a center of mass having a location that is spaced radially away from the rotational axis of the drive shaft in a direction along a third longitudinal plane that is spaced rotationally from the first longitudinal plane and spaced rotationally from the second longitudinal plane; a fourth abrasive element fixedly disposed along the drive shaft and spaced proximally from the second abrasive element and comprising a resting diameter, a mass and a center of mass having a location that is spaced radially away from the rotational axis of the drive shaft in a direction along a fourth longitudinal plane that is spaced rotationally from the second longitudinal plane; and a fifth abrasive element fixedly disposed along the drive shaft and spaced distally from the third abrasive element and comprising a resting diameter, a mass and a center of mass having a location that is spaced radially away from the rotational axis of the drive shaft in a direction along a fifth longitudinal plane that is spaced rotationally from the third longitudinal plane, wherein the masses of the first abrasive element, the second abrasive element, the third abrasive element, the fourth abrasive element and the fifth abrasive element are substantially equivalent.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 88.0
- Lexical Diversity: 1.91209
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15904768', '15075979', '15059349', '13621398', '12464524']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7919756045638531
- 35 USC 102 Novelty (BERT): 0.5681951237949402
- Combined Prediction Score: 0.7695975564869618
- Mean Citation Score: 430.2737
- Max Citation Score: 476.34955
- Similarity Product: 468.76351773948375

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