Selectively Positionable Catheter Cuff with Activatable Adhesive
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Solution Overview
Problem
Existing catheter cuff arrangements require cutting the catheter to achieve proper positioning, which can damage the catheter tip, alter flow dynamics, and lead to undesirable clotting, and are time-consuming.
Innovation Solution
A method and kit for a selectively positionable catheter cuff with an activatable adhesive that can be slid along the catheter shaft and adhered in place without cutting, using materials like harvested extracellular matrix and light-activated adhesives to secure the cuff beneath the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the catheter is cut to achieve proper cuff positioning, then the cuff can be positioned correctly, but the catheter tip is damaged and flow dynamics are altered
Solution Approach 1:
The cuff is designed to be movable along the catheter shaft rather than fixed at a predetermined position. The cuff can be slid to different locations and secured with adhesive, allowing dynamic positioning adjustment without damaging the catheter tip or altering flow dynamics.
Solution Approach 2:
The cuff is separated from the catheter shaft as an independent component that can be positioned and secured separately. This segmentation allows the cuff to be placed at the optimal location without requiring cuts to the catheter, preserving tip integrity and flow characteristics.
2Manufacturing precision
If the catheter is cut to achieve proper cuff positioning, then the cuff can be positioned correctly, but the placement process becomes time-consuming
Solution Approach 1:
The movable cuff design allows the clinician to slide the cuff along the catheter shaft to the correct position during the procedure and then secure it with adhesive. This eliminates the time-consuming step of cutting the catheter while achieving proper positioning.
Solution Approach 2:
The cuff is pre-positioned on the catheter shaft in a movable state during manufacturing, allowing it to be easily adjusted and secured at the correct location during the procedure without requiring cutting operations.
3Manufacturing precision
If the catheter is cut to achieve proper cuff positioning, then the cuff can be positioned correctly, but edges may injure the patient and cause clotting
Solution Approach 1:
The cuff can be slid to the precise location and secured with adhesive without creating edges from cutting. This eliminates the risk of jagged edges injuring the patient or causing clotting while maintaining accurate positioning.
Solution Approach 2:
The mechanical cutting process is replaced with an adhesive securing mechanism. Instead of cutting the catheter to position the cuff, the cuff is slid into position and held by adhesive, eliminating harmful edges and reducing patient injury and clotting risks.
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
Enables precise cuff placement without damaging the catheter tip, reduces clotting risks, and streamlines the catheter placement process by eliminating the need for cutting, thereby improving patient safety and procedural efficiency.
Implementation Method 1
a cuff selectively positionable around a portion of the catheter and comprising an activatable adhesive that is convertible from a nonadherent state to an adherent state
Implementation Method 2
the activatable adhesive is activatable by interaction with light
Data Source
AI summary
Devices and methods for securing a catheter with the body of a patient are generally disclosed. In particular, selectively positionable cuffs and methods for attaching selectively positionable cuffs to long-term tunneled catheters are disclosed. In one embodiment, a slidable, selectively-positionable cuff comprises an adhesive on a foldable tab. In another embodiment, a slidable, selectively positionable cuff comprises an activatable adhesive that is convertible from a nonadherent state to an adherent state beneath the skin of the patient. Additionally, the present disclosure teaches a wrappable sheet comprising a harvested extracellular matrix with an adhesive positioned on a side thereon and arranged to be adhered to the surface of a catheter so as to form a cuff. Methods of securing and/or positioning a cuff on a catheter, kits, and other embodiments are disclosed.