PATENT CLAIM ANALYSIS

Application Number: 15758890
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["141", "027000"]

Abstract:
A barrel is provided having open proximal end and a closed distal end, and at least one groove in an interior wall thereof. The groove(s) define a length extending a distance from the open end of the barrel toward the distal end of the barrel and defining a substantially constant depth and width along the length thereof. A piston is in sealing engagement with the interior wall of the barrel. The groove(s) permits fluid to bypass the piston when positioned along the groove(s). At least a portion of the piston is positioned distally from the groove(s), thereby sealing substance within the barrel.

Claim (Index 1):
A method of minimizing headspace between a substance filled in a medical administration barrel and a piston sealing off an open proximal end of the medical administration barrel, the medical administration barrel having at least one groove in an interior wall thereof, the at least one groove defining a length extending a distance from the open end of the medical administration barrel toward an opposing distal end of the medical administration barrel, and the at least one groove permitting fluid to bypass the piston when positioned along the at least one groove, the method comprising:\n sealingly engaging a vacuum enclosure with the proximal open end of the medical administration barrel, the vacuum enclosure receiving the piston therein; applying a vacuum to an interior of the sealed vacuum enclosure and medical administration barrel, such that pressure within the sealed vacuum enclosure and medical administration barrel is less than pressure external to the medical administration barrel; physically advancing the piston into the medical administration barrel along the length of the at least one groove, the at least one groove permitting fluid to bypass the piston; ceasing physical advancement of the piston upon reaching an initial portion of the interior wall of the medical administration barrel free of the at least one groove, thereby sealingly engaging the interior wall of the medical administration barrel and providing an air-tight seal inside a portion of the medical administration barrel between the piston and a distal end of the medical administration barrel and maintaining the vacuum between the piston and the substance positioned within the medical administration barrel; and disengaging the vacuum enclosure from the proximal open end of the medical administration barrel, thereby relieving a portion of the medical administration barrel between the piston and the proximal open end of the medical administration barrel from the vacuum and creating a pressure differential across the piston causing the piston to slide further toward the substance in the medical administration barrel and minimizing the head space between the substance and the piston.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 90.0
- Lexical Diversity: 2.12281
- Patent Class: 141.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12767058', '14870474', '12762672', '12767035', '15203763']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7704854575053804
- 35 USC 102 Novelty (BERT): 0.4772836888176467
- Combined Prediction Score: 0.7411652806366071
- Mean Citation Score: 208.184546
- Max Citation Score: 218.59409
- Similarity Product: 168.7383150947225

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