Composite Chain of Custody Form with Integrated Seals
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Solution Overview
Problem
Current methods for maintaining a chain of custody in laboratory specimen handling rely on multiple identical sheets of paper, which can be prone to tampering and contamination, and lack efficient tracking and verification processes.
Innovation Solution
A composite form with integrated removable seals and a unique identifier, printed on a single sheet, that documents specimen handling from collection to laboratory receipt, ensuring integrity and accountability through perforations, human-readable, and machine-readable formats, and electronic data recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple identical sheets of paper are used to document chain of custody, then copies can be provided to all parties involved, but the risk of tampering and contamination increases
Solution Approach 1:
The patent combines multiple documentation functions into a single integrated form that includes carbonless copy sheets, specimen seals with unique identifiers, and chain of custody tracking all on one sheet. This merging eliminates the need for separate documents while maintaining complete documentation and reducing tampering risk through integrated security features.
Solution Approach 2:
The form uses composite material structure with carbonless copy paper that creates multiple copies without carbon paper, integrated with tamper-evident seals and machine-readable identifiers. This composite approach provides both documentation copies and security features in a single reliable system.
2Loss of information
If conventional label printers are used to generate specimen seals, then identification codes can be printed, but efficient tracking and verification processes are lacking
Solution Approach 1:
The patent replaces manual tracking and verification processes with machine-readable identifiers (barcodes, RFID tags) that can be automatically scanned and verified. This substitution of mechanical/manual processes with automated systems dramatically improves tracking efficiency and reduces human error in specimen verification.
Solution Approach 2:
The form creates machine-readable copies of specimen identification data that can be rapidly copied and verified across multiple systems. The integrated seals contain copyable identification information that streamlines tracking through automated data capture rather than manual entry.
3Loss of information
If carbon or carbonless paper is used to create multiple sheets, then records can be provided to all parties, but the sheets are prone to tampering
Solution Approach 1:
The patent incorporates tamper-evident features including color-changing ink or visual indicators that change appearance when the document is altered. This provides immediate visual detection of tampering while maintaining the ability to distribute copies to all necessary parties.
Solution Approach 2:
The form includes pre-printed security features, unique identifiers, and tamper-evident elements before the document is even used. This preliminary incorporation of security measures ensures that tampering is detectable from the outset, while the carbonless copy mechanism is already configured to provide records to all parties.
Data Source
AI summary
A chain-of-custody form has integrated removable specimen seals, and the form may be used to identify a test sample collected from a donor and to document the handling of the test sample. The form may be printed upon a single sheet that has a first portion and a second portion. The first portion includes a first section having one or more spaces for recording demographic and testing information, and one or more indicia of the information to be recorded in one or more marked spaces; and a second section having a marked space for the donor to affix a signature and one or more indicia of the purpose of the space. An identifier that is unique to the form is recorded within the first portion and within the second portion. The identifier includes an specimen identification number or some other method of specimen identification such as a bar-code.