Tissue-Opening Compression Frame for Vascular Hemostasis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing manual compression methods for vascular access sites are time-consuming, uncomfortable for patients, and prone to complications such as bleeding, hematoma, and thrombosis, especially in anticoagulated patients, and bioabsorbable sealing bodies lack mechanical stability, leading to potential vascular occlusion.
Innovation Solution
A compression device with a support frame and tension members that apply even transverse force to close tissue openings, using adhesive and locking mechanisms to secure the device on the skin, allowing for rapid and comfortable hemostasis without relying on clot formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual compression is applied to achieve hemostasis, then bleeding is stopped, but the procedure is time-consuming and requires prolonged patient recumbency
Solution Approach 1:
The compression device is applied to the patient's body before the vascular access procedure is completed. The device maintains compression force on the puncture site during sheath removal and immediately after, eliminating the need for prolonged manual compression and patient recumbency while ensuring reliable hemostasis from the outset
2Reliability
If excessive pressure is applied during manual compression to stop bleeding, then hemostasis is achieved, but the underlying blood vessel may be occluded causing ischemia and thrombosis
Solution Approach 1:
The compression device applies localized compression force directly at the puncture site through a focused contact area, while the rest of the vessel remains patent. The device's design concentrates pressure where needed to achieve hemostasis without causing diffuse vessel occlusion, ischemia, or thrombosis that can occur with excessive manual compression
3Reliability
If bioabsorbable sealing bodies are used to close the puncture site, then hemostasis may be achieved, but the sealing bodies lack mechanical attachment and can wander or move causing late bleeds
Solution Approach 1:
The compression device is applied before sheath removal and maintains continuous compression force during the critical period when sealing bodies are deployed and integrate into tissue. This preliminary and sustained compression prevents sealing bodies from wandering or migrating, ensuring they remain properly positioned for effective hemostasis without late bleeds
4Reliability
If manual compression is used for arterial closure, then hemostasis can be achieved, but the procedure is uncomfortable for patients and frequently requires analgesics
Solution Approach 1:
The compression device is applied in advance before the access procedure is completed, allowing compression force to be maintained during sheath removal and immediate post-procedure period. This eliminates the need for prolonged manual compression and patient recumbency, significantly improving comfort while achieving reliable hemostasis without requiring analgesics
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 rapid and effective hemostasis, reducing patient discomfort and complications, while maintaining vascular access sites securely closed for extended periods without the need for continuous manual pressure.
Implementation Method 1
using adhesive and locking mechanisms to secure the device on the skin
Data Source
AI summary
A compression device for compressing an area of tissue surrounding a tissue opening to close the tissue opening. The device includes a compression support frame having an outer peripheral edge forming an arc whose central angle is less than 180° and greater than 45°. The device also includes a compression support and a tension member. The compression support is mounted on the compression support frame, and the tension member is selectively slidable in relation to the compression support.