Catheter Securement Dressing With Resealable Cover Access
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Solution Overview
Problem
Existing dressings for catheter sites are prone to being peeled off by pulling forces, exposing the site to bacteria and compromising the securement of medical tubing, while also lacking easy access and sealing mechanisms.
Innovation Solution
A dressing with a base and a cover that secures to the skin, allowing catheters to pass through and be sealed, featuring a window for visibility and easy access, with adhesive layers and removable liners for application and resealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dressing is applied to cover a catheter insertion site, then the site is protected from harmful bacteria, but the dressing may be peeled off by pulling forces on the tubing, exposing the site again
Solution Approach 1:
The dressing is divided into two separate components: a base layer that adheres to the skin and secures the catheter, and a removable cover layer that protects the site. This segmentation allows the base to maintain stable adhesion while the cover can be easily removed for access, resolving the contradiction between reliable protection and stability of the dressing structure.
2Reliability
If the dressing is made secure to prevent peeling, then protection is maintained, but access to the catheter for administration becomes difficult
Solution Approach 1:
By separating the dressing into a secure base and a removable cover, the system allows the base to maintain reliable protection while the cover provides easy access. The cover can be peeled away when catheter access is needed and replaced to restore protection, resolving the contradiction between secure protection and ease of operation.
Solution Approach 2:
The dressing transitions from a static, permanently adhered structure to a dynamic system where the cover can be temporarily removed and reattached. This dynamic capability allows the dressing to adapt between states of full protection and accessible catheter, resolving the contradiction between reliable protection and ease of operation.
3Ease of operation
If the catheter is left exposed for easy access, then administration is convenient, but the site is vulnerable to bacterial contamination
Solution Approach 1:
The removable cover acts as a protective barrier that can be easily removed when access is needed and promptly replaced to restore protection. This segmented design allows the system to alternate between states of accessibility and protection, resolving the contradiction between ease of operation and resistance to harmful factors.
4Reliability
If a traditional dressing is used, then the catheter site is covered, but the tubing securement is compromised by pulling forces
Solution Approach 1:
The base layer is designed with enhanced securement features including adhesive properties and structural elements that anchor both the dressing and medical tubing. This segmented design allows the base to provide strong, stable securement resistant to pulling forces, while the separate cover provides protection without compromising tubing security, resolving the contradiction between site protection and tubing securement strength.
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
Maintains catheters in a sealed condition when not in use and allows easy access when needed, ensuring secure adhesion and protection against pulling forces.
Implementation Method 1
a base having an adhesive on an underside thereof for adhering to a patient
Implementation Method 2
a frame secured about a periphery of said window with an adhesive on an outer surface thereof for securement to said base
Data Source
Figure 1~4
Figure 5~6
Figure 7~9
AI summary
A dressing (20) has a base (21) which is to be adhered to a patient about a catheter site, an aperture in the base (21) to pull a catheter line (43) through and a cover (22) with a window (27) that is folded over and onto the base (21) in a sealed manner. Furthermore, the dressing (44) can have two covers (48, 49) with windows (27, 27') for folding over separate sections (46, 47) of a base (45) to seal in the components of a catheter assembly with multiple catheters (53) extending from a common housing (54).