Bioresorbable Inflatable Pouch for Sinus Augmentation
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Solution Overview
Problem
Current methods for bone regeneration and vessel widening in medical procedures face challenges such as tissue tearing, graft migration, infection, and limited augmentation, particularly in dental implantation and vascular treatments, due to complex surgical procedures and inadequate biocompatibility of existing stents and graft materials.
Innovation Solution
A bioresorbable device combining a bioactive material-filled pouch made from perforated or expandable materials that applies tensile forces to surrounding tissues for expansion, allowing for controlled tissue regeneration and vessel widening without the need for multiple surgical procedures or precise sizing, while ensuring biocompatibility and minimizing risks like infection and embolization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional surgical methods are used for bone regeneration, then bone grafting can be performed, but tissue tearing and mucoperiosteal damage occur
Solution Approach 1:
The patent uses a resorbable membrane as a flexible barrier that protects the bone graft material while allowing gradual tissue regeneration. The membrane is inserted through a small incision and expanded within the bone defect space, avoiding the need for extensive soft tissue dissection and suturing that causes tissue tearing in traditional methods.
Solution Approach 2:
The membrane is pre-formed and pre-filled with bone graft material before insertion. This preliminary preparation allows the entire bone regeneration system to be introduced through a single small incision, eliminating the need for extensive surgical exposure and reducing the risk of tissue damage during the procedure.
2Volume of moving object
If expandable devices are used for tissue enlargement, then tissue expansion can be achieved, but device complexity increases
Solution Approach 1:
The device consists of a collapsed membrane structure that is nested within a delivery catheter. Once positioned at the target site, the membrane is expanded by injecting saline solution through the catheter, transforming it from a compact state to an expanded state that fills the bone defect space. This nested design simplifies the insertion procedure while achieving the desired tissue expansion.
Solution Approach 2:
The membrane expansion is achieved through hydraulic injection of saline solution into the pre-formed membrane structure. This pneumatic-hydraulic mechanism allows for controlled, gradual expansion of the device to the desired volume without requiring complex mechanical actuators or multiple surgical procedures.
3Quantity of substance
If multiple surgical procedures are performed for bone augmentation, then sufficient bone volume can be achieved, but loss of time increases
Solution Approach 1:
The patent combines the bone graft material delivery, membrane placement, and space maintenance functions into a single integrated device and procedure. The pre-filled membrane delivers the bone graft material directly to the defect site while simultaneously maintaining the space for regeneration, eliminating the need for separate grafting procedures and reducing overall treatment time.
Solution Approach 2:
The device enables rapid deployment of the bone regeneration system through a single minimally invasive procedure. The collapsed membrane with pre-loaded graft material is inserted through a small incision and quickly expanded to the target volume, skipping the time-consuming steps of traditional open surgery, extensive tissue dissection, and multiple staged procedures.
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 solution enables simplified, effective bone regeneration and vessel widening with reduced surgical complexity, improved biocompatibility, and enhanced tissue integration, allowing for vertical augmentation and long-term stability with minimal risk of complications like restenosis or infection.
Implementation Method 1
inserting into the tissue an inflatable element made at least in part from bio-dissipative material; leaving at least part of the inflatable element in place for a period sufficient to allow the bio-dissipative material to disperse
Implementation Method 2
introducing into the inflatable element a quantity of a biocompatible filling material so as to displace the tissue
Implementation Method 3
The device is made of a pouch or compartment that can be filled preferably through a filling element with the biocompatible material. The pouch is made fully or partially of a bioresorbable material or a perforated material and it acts like a balloon that expands as it is filled
Data Source
AI summary
Bioresorbable inflatable devices and tunnel incision tool and methods for treating and enlarging a tissue or an organ or a tube or a vessel or a cavity. The device is composed of a hollow expanding pouch made of a resorbable material or a perforated material that can be attached to a filling element. The pouch can be filled with a biocompatible materials, one or more times in few days interval, after the insertion of the device. While filling the pouch every few days the tissue expands and the filling material if it is bioactive start to function. The tunnel incision tool composed of a little blade that emerges from the surface of the tool in order to make shallow incisions in the surrounding tissue therefore enabling easy expansion of the tissue. This device and method can be used for example for: horizontal and vertical bone augmentation in the jaws and the tunnel incision tool is used to make shallow incisions in the periosteum when using the tunnel technique, sinus augmentation when the device is placed beneath the Schneiderian tissue, vessels widening if the pouch become a stent, fixating bone fractures etc.