PCA Pump Security Door With Diversion Guard for Gap Tampering
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Solution Overview
Problem
Current security systems for medicament delivery systems like PCA pumps are vulnerable to unauthorized access and tampering through gaps in the security door assembly, allowing drug diversion and compromising patient safety and healthcare efficiency.
Innovation Solution
A security system incorporating a diversion guard that covers the gaps between the security door and frame assembly, using a robust material and a deadbolt lock assembly, with sensors to detect unauthorized access and trigger alarms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a security door assembly is used to prevent physical access to the syringe holder, then unauthorized access is reduced, but gap locations between the security door and pump allow tool insertion for drug diversion
Solution Approach 1:
The diversion guard extends the security coverage from the primary door surface into the three-dimensional gap space between the security door and pump body. This additional spatial dimension blocks tool insertion paths that were previously accessible through the gaps, thereby eliminating the harmful factor without compromising the pivoting functionality of the security door.
Solution Approach 2:
The diversion guard acts as an intermediary component positioned between the external environment (where tools could be inserted) and the vulnerable gap locations. This intermediate structure prevents direct contact between external tools and the syringe holder, thereby mediating the security function without requiring changes to the primary security door mechanism.
2Strength
If the security door assembly is made robust to prevent tampering, then security is improved, but the complexity of the security system increases
Solution Approach 1:
The security system is segmented into distinct functional components: the security door assembly for primary access control and the diversion guard for gap protection. This segmentation allows each component to be optimized for its specific function without unnecessarily increasing the complexity of the entire system. The diversion guard is a simple additive component rather than a complex integrated mechanism.
Solution Approach 2:
Rather than making the entire security door assembly uniformly more robust (which would increase overall complexity), the diversion guard provides localized reinforcement specifically at the gap locations where tool insertion is prevented. This local quality approach strengthens the system where needed while maintaining simplicity elsewhere.
Data Source
AI summary
A system and apparatus for securing a pump are disclosed. The system includes a patient-controlled analgesia (“PCA”) pump, a security door, a security frame assembly, and a diversion guard. The PCA pump can be placed in the security frame assembly. The security door interlocks with the security frame assembly and pivots about it from an open configuration to a closed configuration. When the security door is in a closed configuration, the medicament-administering components of the PCA pump are out of reach from unauthorized users. As an additional physical barrier, the diversion guard selectively couples to the security frame assembly, such that it blocks a physical gap between the security door and security frame assembly when the security door is in a closed configuration.