Pivoting Catheter Securement for Stabilization and Maintenance Access
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Solution Overview
Problem
Conventional securement devices for catheters fail to properly stabilize the catheters, leading to complications such as dislodgment, phlebitis, extravasation/infiltration, leakage, occlusion, and bloodstream infections, and require removal for maintenance procedures, causing discomfort and potential injuries.
Innovation Solution
A securement device with a base, base mount, swing arm, and cannula securement member that allows for removably securing the cannula, pivoting for maintenance access, and using a stretch-release adhesive for easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional securement devices (tapes, patches, sutures) are used to secure catheters, then the catheters can be attached to the skin, but the catheters are not properly stabilized and allow undesirable movement
Solution Approach 1:
The securement device is divided into separate functional components: a base for skin attachment, a swing arm for positioning, and a cannula securement member for catheter fixation. This segmentation allows each component to perform its specific function optimally, providing reliable stabilization while maintaining ease of operation through independent adjustment of each segment.
Solution Approach 2:
The swing arm is designed to be pivotable between a secured position (where it constrains catheter movement) and a repositioned position (where it allows access for maintenance procedures). This dynamic positioning capability enables the device to transition between providing stable fixation and allowing operational access, resolving the contradiction between reliability and ease of operation.
2Reliability
If conventional securement devices are used to prevent catheter dislodgment, then catheter stability is improved, but the devices must be removed for maintenance procedures causing discomfort and potential injuries
Solution Approach 1:
The swing arm can be pivoted to a repositioned state that moves the cannula securement member away from the skin insertion site, allowing maintenance procedures to be performed on the skin without removing the base from the patient. This dynamic repositioning eliminates the need for base removal, thereby preventing skin injuries and discomfort associated with repeated attachment and detachment.
Solution Approach 2:
The swing arm acts as an intermediary mechanism that separates the cannula securement function from the skin attachment function. By pivoting the swing arm, the system allows skin maintenance procedures to be performed while the base remains in place, mediating between the need for catheter fixation and the need for skin access without requiring removal of the securing device.
3Reliability
If the cannula securement member is continuously attached to the retaining member, then catheter stability is maintained, but access for maintenance procedures is restricted
Solution Approach 1:
The swing arm is designed with rotational freedom, allowing it to pivot between a first position where the cannula securement member is engaged with the retaining member (providing stable fixation) and a second position where the securement member is disengaged (providing access for maintenance procedures). This dynamic repositioning enables the system to adapt between providing reliable stabilization and allowing maintenance access as needed.
Solution Approach 2:
The device is segmented into the base, swing arm, and cannula securement member as independent components. This segmentation allows the swing arm to be pivoted independently to reposition the cannula securement member, enabling maintenance access without affecting the base attachment or requiring removal of the entire securement device.
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 firmly secures the catheter, preventing undesirable movement, facilitates maintenance without detachment, and reduces complications like phlebitis and infections, while allowing easy removal without causing discomfort.
Implementation Method 1
using a stretch-release adhesive for easy removal
Data Source
AI summary
A securement device includes a base; a base mount fixedly attached to the base and including a coupling member and a retaining member spaced apart from the coupling member; and a swing arm including an elongate member pivotally coupled to the coupling member and a cannula securement member connected to the elongate member and spaced apart from the coupling member. The cannula securement member is configured to removably secure the cannula thereto and to be detachably coupled to the retaining member. The securement device includes a maintenance state in which the cannula securement member is detached from the retaining member and the swing arm is pivoted away from the retaining member, such that the cannula securement member is spaced apart from the retaining member while being secured to the cannula.