Catheter Securement Device with Rotatable Plates
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Solution Overview
Problem
Existing catheter securement devices are limited in accommodating various types and sizes of catheters, often causing discomfort and requiring frequent tape changes, and they lack universal adaptability.
Innovation Solution
A securement device with a pad having a top and bottom surface, where the bottom surface is adhesive for patient attachment, and complementary members on the top surface that are rotationally adjustable to securely hold catheters of different sizes and shapes, using retention means like posts or brackets, and optionally ratchet and pawl mechanisms for precise adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tape is used to affix the catheter to the patient, then the catheter can be secured to the body, but the tape collects dirt and contaminants requiring frequent changes
Solution Approach 1:
The securement device divides the catheter attachment system into separate functional components: a base portion that adheres to the skin and a clamp portion that secures the catheter. This segmentation allows the adhesive base to be changed less frequently while the clamp remains sterile and secure.
Solution Approach 2:
The securement device acts as an intermediary between the catheter and the patient's skin, providing a sterile barrier that prevents direct contact between the catheter and skin contaminants, while the adhesive base can be applied cleanly and changed as needed.
2Reliability
If a flexible clamp with winged extensions is sutured to the patient, then the catheter can be secured without tape, but the procedure becomes more complex and invasive
Solution Approach 1:
The invention replaces the mechanical suturing system with an adhesive bonding system. The base portion uses medical adhesive to attach to the skin, eliminating the need for needles, threads, and surgical procedures while maintaining secure attachment.
Solution Approach 2:
The securement method transitions from permanent mechanical attachment (sutures) to reversible chemical attachment (adhesive). This parameter change allows for easier application and removal without invasive procedures, reducing complexity while maintaining security.
3Reliability
If an adhesive securement device with pins is used, then the catheter can be secured without tape, but pressing downwardly against the patient causes discomfort and possible pain
Solution Approach 1:
Instead of applying force downward to secure the catheter (as with pinned devices), the invention inverts the approach by using adhesive chemistry to create securement through bonding at the molecular level, requiring no downward pressure on the patient's tissue.
Solution Approach 2:
The mechanical pin-and-pressure system is replaced with a chemical adhesive bonding system. The adhesive creates strong bonds between the base and skin without requiring forceful compression, eliminating tissue compression and patient discomfort.
4Reliability
If the catheter anchoring system with hinged cover assembly is used, then the catheter can be secured without tape, but the linear movement of posts is restricted limiting accommodation of various catheter sizes
Solution Approach 1:
The clamp portion of the securement device is designed to be dynamic rather than static. The clamp can open and close to accommodate different catheter diameters, and the adhesive base can conform to various skin surfaces, providing universal adaptability across different catheter sizes and types.
Solution Approach 2:
The securement device is designed as a universal system that can secure various types of catheters (IV catheters, central venous catheters, PICC lines) of different sizes. The combination of adhesive base and adjustable clamp provides multi-functional capability across diverse catheter applications.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides secure and comfortable catheter attachment with minimal discomfort, accommodating a wide range of catheter sizes and shapes without the need for frequent tape changes, enhancing patient care.
Implementation Method 1
At least a portion of the bottom surface of the pad has adhesive thereon for securing the securement device to the body of a patient
Data Source
AI summary
A device for securing a medical implement, such as a catheter to a body of a patient. The device having an adhesive pad for securing the pad to the body of a patient. An adjustable plate is rotatable with respect to the fixed plate to secure a catheter. In some aspects, a pair of adjustable plates can be rotated with respect to the fixed plate. Tabs affixed to the fixed plate and the adjustable plate cooperate with each other to secure a catheter there between. The adjustable plate can be rotated so as to retain a catheter between the tabs. Complementary pawl and ratchet members are used to enable limited rotation of the plates with respect to one another and to fix the plates in a selected adjustment position.