| 摘要 |
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. |
| 主权项 |
1. A method for displacing the Schneiderian membrane from the maxillary bone comprising:
a. Forming a path of insertion through the alveolar ridge of said maxillary bone towards said Schneiderian membrane; b. inserting through said path of insertion a hollow cannula, said cannula has a distal portion and a proximal portion, at least part of said distal portion of said cannula being inside said alveolar ridge, said proximal portion of said cannula being proximally to said alveolar ridge, said cannula being part of a device, said device further includes an expandable inflatable container, an extension tube and injecting element, said container has a proximal portion and a distal portion, said proximal portion of said container being located adjacent said distal portion of said cannula, said extension tube has a proximal portion and a distal portion, said proximal portion of said extension tube being located proximally to said said cannula, said proximal portion of said extension tube being connected to said injecting element; c. activating said injecting element to inflate through said extension tube said distal portion of said container so said distal portion of said container is expanded and advanced distally to the distal end of said cannula inside said maxillary bone to displace a segment of said Schneiderian membrane from a surface of said maxillary bone, said segment of said Schneiderian membrane was touching said surface before being displaced, at least part of said expanded distal portion of said container being between said displaced segment of said Schneiderian membrane and said surface, said surface is selected from the group consisting of the floor of the maxillary sinus and the floor of the nasal cavity. |
