PATENT CLAIM ANALYSIS

Application Number: 16004970
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-02
Patent Classification: ["604", "167030"]

Abstract:
Methods and devices to facilitate positioning of a catheter into a vessel. Devices include axially concentric assemblies of a piercing needle and a dilator that guides an outer catheter into a vessel, such as a blood vessel. The assemblies described herein can include retraction mechanisms and/or lock mechanisms to control needle positioning during catheterization processes as well as improved valves that prevent leakage of fluid from the proximal end of the devices. The devices and method include the use of novel valves to prevent undesired leakage of fluids through the proximal end of the catheter.

Claim (Index 1):
A needle assembly comprising:\n a housing having a projection located therein; a first tubular member having a first hub slidably engaged with the housing; a needle having a needle hub, the needle extending through the first tubular member, the needle hub positioned within the assembly housing, the needle hub including a stop material positioned in a fluid path of the needle hub such that fluids passing through the needle into the needle hub contacts the stop material; a biasing element in contact with the needle hub applying a biasing force against the needle hub; where the needle assembly comprises an unloaded configuration where the stop material and the projection are adjacent without the biasing force acting therebetween; where the first hub and needle hub are moveable relative to each other to assume a loaded configuration where the biasing force drives the needle hub proximally to force the stop material against the projection such that the stop material prevents further proximal movement of the needle hub; and wherein when fluid in the needle hub contacts the stop material, the stop material weakens causing proximal movement of the needle hub such that a distal end of the needle retracts within the first tubular member.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 94.0
- Lexical Diversity: 1.78571
- Patent Class: 604.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12182793', '15169717', '15435700', '12709861', '10579534']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8182048905100822
- 35 USC 102 Novelty (BERT): 0.4953899532120075
- Combined Prediction Score: 0.7859233967802747
- Mean Citation Score: 269.05987200000004
- Max Citation Score: 273.13828
- Similarity Product: 180.93930192988395

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