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 24):
A high-speed rotational atherectomy device for opening a stenosis in a blood vessel, comprising:\n a flexible elongated, rotatable drive shaft, the drive shaft having a rotational axis; and an eccentric system comprising a proximal abrasive element, a distal abrasive element and a plurality of abrasive elements disposed between the proximal and distal eccentric abrasive elements, each abrasive element in the eccentric system being in spaced apart longitudinal disposition along the drive shaft and comprising a mass and a center of mass that is radially offset from the rotational axis of the drive shaft, wherein the centers of mass for adjacent abrasive elements are rotationally spaced apart from each other at a rotational angle within the range of between 0 degrees to 45 degrees; and wherein the eccentric system comprises a center of mass that is radially offset from the rotational axis of the drive shaft, and wherein the masses of each abrasive element in the eccentric system 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): 0.7924730698833918
- 35 USC 102 Novelty (BERT): 0.5665306632415289
- Combined Prediction Score: 0.7698788292192056
- Mean Citation Score: 430.2737
- Max Citation Score: 476.34955
- Similarity Product: 458.810986851129

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