PATENT CLAIM ANALYSIS

Application Number: 15864185
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["604", "121000"]

Abstract:
Flush syringe assemblies capable of creating pulsatile movement of the plunger rod as it moves in the distal direction within a syringe barrel, while preventing overpressurization of the catheter are provided. An exemplary flush syringe assembly includes a syringe barrel with a first pulsing element and a chamber with flush solution, a plunger rod with a stopper and a second pulsing element that interacts with the first pulsing element to provide an engagement force that causes pulsatile movement of the plunger rod and a thumb press slidably attached to the plunger rod with a pulse control element. The pulse control element is compressible to create a compression force that is greater than the engagement force of the first pulsing element and the second pulsing element.

Claim (Index 15):
A flush syringe assembly comprising:\n a barrel including a side wall having an inside surface defining a chamber for retaining fluid, an open proximal end and a distal end including a distal wall with a tip extending distally therefrom having a passageway therethrough in fluid communication with the chamber, the open proximal end of the barrel comprising at least one protrusion extending inwardly into the chamber adjacent the open proximal end; a plunger rod disposed within the barrel comprising a compressible plunger rod body with a distal end and a proximal end, and a plurality of projections disposed along the plunger rod body, each projection having a distally facing ramped surface and a proximally facing perpendicular surface so that in a first position, a distally directed force to a thumb press causes engagement of the distally facing ramped surface with the protrusion on the barrel to provide an interference force with variations and cause pulsatile movement of the plunger rod as it moves within the barrel in the distal direction and imparts pulsing flow to a solution in the chamber, the plunger rod body further comprising a hollow portion including a spring having a rate so that the spring is initially compressed to provide a force that is less than the interference force and upon further application of distally directed force to the thumb press, the spring is compressed to provide force greater than the interference force; and in a second position, upon rotation of the plunger rod, a distally directed force to the thumb press causes a continuous movement of the plunger rod as it moves within the barrel in the distal direction; and a stopper disposed at the distal end of the plunger rod for forming a fluid-tight seal with the inside surface of the barrel.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 86.0
- Lexical Diversity: 2.06349
- Patent Class: 604.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14798648', '13871682', '12833551', '12833432', '14306343']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8278990870297843
- 35 USC 102 Novelty (BERT): 0.6459374878398253
- Combined Prediction Score: 0.8097029271107884
- Mean Citation Score: 541.551282
- Max Citation Score: 620.7872
- Similarity Product: 609.5279591163635

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