Vascular Closure Device Balloon Anchor Sealing
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Solution Overview
Problem
Current vascular closure devices are complex, require biodegradable materials, and may not be suitable for patients with allergies, leading to inadequate sealing of puncture sites, especially in obese patients where pressure application is insufficient, resulting in increased bleeding.
Innovation Solution
A vascular closure device with a single component featuring a distal balloon member and an expandable anchor member attached to a tubular sheath, which applies pressure and secures the device in place, allowing for reliable and fast sealing of puncture sites without leaving materials inside the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vascular closure device with separate anchor means and plug is used, then pressure can be applied to the puncture site, but the device design becomes complex and requires biodegradable materials that may cause allergic reactions
Solution Approach 1:
The patent combines the anchor means and plug into a single integrated component - a sheath with a distal balloon member and expandable anchor member. This merging eliminates the complexity of separate components while maintaining the sealing function. The sheath itself serves as the structural element that positions the balloon at the puncture site, eliminating the need for separate anchoring mechanisms.
Solution Approach 2:
The sheath with integrated balloon and anchor members serves multiple functions: it provides structural support, positions the sealing balloon at the puncture site, anchors the device in place, and delivers the sealing mechanism. This multi-functionality reduces the number of separate components needed while achieving reliable sealing.
2Reliability
If manual compression is applied to the puncture site, then the puncture site can be sealed, but sufficient pressure cannot be applied especially in obese patients, resulting in increased bleeding
Solution Approach 1:
The patent replaces manual external compression with an internal pressure application system. The distal balloon member, when inflated, applies controlled pressure directly to the puncture site from within the vessel, eliminating dependence on external manual compression that is insufficient in obese patients. This mechanical substitution ensures reliable sealing regardless of patient body type.
3Reliability
If a vascular closure device with remaining components in the body is used, then sealing can be achieved, but it is not suitable for patients with allergic reactions to the materials used
Solution Approach 1:
The patent designs the sheath with balloon and anchor members as a temporary device that is removed after sealing is achieved. The components are not left permanently in the body, eliminating the risk of long-term allergic reactions or material incompatibility. The device performs its sealing function and is then discarded, avoiding the harmful effects of permanent implantation.
4Reliability
If external bandage compression is applied for several hours, then the puncture site can be sealed, but treatment duration is extended
Solution Approach 1:
The patent replaces prolonged external bandage compression with a controlled balloon inflation system that achieves sealing quickly. The balloon can be inflated to the required pressure immediately, providing effective sealing without the need for hours of external compression. This reduces treatment duration while maintaining sealing reliability.
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 ensures effective sealing of vascular puncture sites with minimal patient impact, reducing bleeding complications and treatment duration, and is compatible with patients who may have allergies to the materials used, as no components remain in the body.
Implementation Method 1
at least the distal side of the distal balloon member is a pressure area for applying pressure onto the outside of the vascular wall
Implementation Method 2
at least one expandable anchor member is firmly arranged proximal to the at least one distal balloon member on the tubular body of the sheath
Data Source
AI summary
The present invention relates to a vascular closure device for sealing a puncture site in a vascular wall comprising a sheath (10) having a distal end and at least one proximal end, wherein the sheath (10) comprises a tubular body (100). The vascular closure device (1) is characterized in that at least one distal balloon member (11) is firmly arranged at the distal end of the tubular body (100) of the sheath (10) and at least one expandable anchor member (12) is firmly arranged proximal to the distal balloon member (11) on the tubular body of the sheath (10), wherein at least the distal side of the distal balloon member (11) is a pressure area for applying pressure on the outside of the vascular wall. Furthermore a method of positioning of a vascular closure device (1) is described.