PATENT CLAIM ANALYSIS

Application Number: 15769654
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["702", "050000"]

Abstract:
A method for detecting an occlusion in an infusion line ( 3 ) connected to an infusion device ( 1 ) comprises: measuring a force (F) applied to a piston ( 21 ) by a pusher device ( 12 ) of an infusion device ( 1 ) for moving the piston ( 21 ) along a movement direction (X) into a cylindrical tube ( 20 ) in order to deliver a medical fluid from the cylindrical tube ( 21 ) towards an infusion line ( 3 ) connected to the cylindrical tube ( 20 ); calculating, from the measured force (F), a value indicative of a pressure (P) in the cylindrical tube ( 20 ), wherein for calculating said value indicative of said pressure (P) a frictional force value (FO) indicative of a friction of the piston ( 21 ) relative to the cylindrical tube ( 20 ) is taken into account; and comparing said value indicative of said pressure (P) to a threshold value to determine whether an occlusion is present in the infusion line ( 3 ). Herein, the frictional force value (F 0 ) is determined using a mathematical model modelling the friction of the piston ( 21 ) relative to the cylindrical tube ( 20 ) in dependence on the position of the piston ( 21 ) relative to the cylindrical tube ( 20 ) along the movement direction (X) and in dependence on the velocity by which the piston ( 21 ) is moved relative to the cylindrical tube ( 3 ). In this way a method for reliably detecting an occlusion in an infusion line during an infusion process is provided.

Claim (Index 1):
A method for detecting an occlusion in an infusion line connected to an infusion device, comprising:\n measuring a force applied to a piston by a pusher device of an infusion device for moving the piston along a movement direction into a cylindrical tube in order to deliver a medical fluid from the cylindrical tube towards an infusion line connected to the cylindrical tube, calculating, from the measured force, a value indicative of a pressure in the cylindrical tube, wherein for calculating said value indicative of said pressure a frictional force value indicative of a friction of the piston relative to the cylindrical tube is taken into account, comparing said value indicative of said pressure to a threshold value to determine whether an occlusion is present in the infusion line, wherein the frictional force value is determined using a mathematical model modelling the friction of the piston relative to the cylindrical tube in dependence on a position of the piston relative to the cylindrical tube along the movement direction and in dependence on a velocity by which the piston is moved relative to the cylindrical tube.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 91.0
- Lexical Diversity: 3.41573
- Patent Class: 702.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11323104', '14152150', '13099212', '14152423', '14688769']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.1787290387800784
- 35 USC 102 Novelty (BERT): 0.4921072870373412
- Combined Prediction Score: 0.2100668636058047
- Mean Citation Score: 191.9446
- Max Citation Score: 194.0792
- Similarity Product: 131.64692195677756

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test