Subperiosteal Jaw Bone Augmentation Instruments

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Solution Overview

Problem

Existing surgical instruments are inadequate for performing minimally invasive subperiosteal jaw bone augmentations and reconstructions, particularly when the surgical site is remote from the incision and not fully exposed.

Innovation Solution

Development of specialized instruments with engaging portions configured as elevators and condensers, allowing for maneuvering through a tunnel to access a concealed surgical site, and facilitating the reconstruction and augmentation of jaw bones, gingival papillae, and the attachment apparatus of teeth and dental implants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional instruments are used with open incisions to access the surgical site, then direct access and exposure is improved, but tissue trauma and peri-implant soft tissue disfigurement increase

Engineering Contradiction:

Improvedirect access to surgical siteVSAvoidtissue trauma and soft tissue disfigurement

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The surgical approach is segmented into two distinct pathways: a remote incision for instrument insertion and a subperiosteal tunnel for material delivery. This segmentation allows the surgical site to be accessed indirectly, avoiding the need for direct exposure through traditional open incisions at the surgical site, thereby reducing tissue trauma and soft tissue disfigurement while maintaining adequate access for the procedure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A subperiosteal tunnel acts as an intermediary pathway between the remote incision and the concealed surgical site. This tunnel allows instruments and graft materials to reach the target location without requiring direct exposure, serving as a mediator that enables minimally invasive access while preserving soft tissue integrity

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If a remote incision is made and a tunnel is surgically developed to access the surgical site, then tissue trauma is reduced, but the capability to maneuver instruments and manipulate material at the surgical site is worsened

Engineering Contradiction:

Improvetissue traumaVSAvoidmaneuverability of instruments and material manipulation

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The instruments are designed with dynamic, flexible shanks that can adapt to the curvature and configuration of the subperiosteal tunnel. This flexibility allows the instruments to maneuver effectively through the tunnel while maintaining the ability to manipulate graft materials at the surgical site, resolving the contradiction between reduced tissue trauma and adequate operational capability

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The instruments feature specialized engaging portions with specific geometries (elevators and condensers) tailored for particular functions within the tunnel. These locally optimized features enable effective material manipulation at the surgical site despite the indirect access route, ensuring that the distal ends of the instruments have the appropriate characteristics for their intended operations

Inventive Principle:

Principle #3Local quality

3Manufacturing precision

If traditional bone grafting techniques with releasing incisions and gingival flap elevation are used, then bone augmentation is achieved, but gingival deformities and compromised esthetics increase

Engineering Contradiction:

Improvebone augmentationVSAvoidgingival deformities and esthetic compromise

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The procedure extracts the necessary function of bone augmentation while eliminating the harmful side effects by removing the steps involving releasing incisions, papilla splitting, and gingival flap elevation. The subperiosteal tunnel technique achieves the same bone augmentation outcome without disrupting the gingival architecture, thereby preserving esthetics and avoiding soft tissue deformities

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS12310814B2Devices for conducting subperiosteal minimally invasive aesthetic jaw bone grafting augmentation and their use

Publication Date: 2025.05.27 LEE ERNESTO A

AI summary

Devices for carrying out subperiosteal minimally invasive jaw bone augmentation and reconstruction procedures, to develop a passageway and surgical site in a concealed area of patient tissue, where the surgical site is not exposed. The devices have shanks with specially configured tips to facilitate maneuvering the device through mammalian tissue to develop a tunnel in the tissue and a remote surgical site within the tissue. The device tips have one or more peripheral cutting surfaces that direct the positioning of the tunnel formation when the instrument handle is manipulated, e.g., by rotation, angular, forward or rearward motion. Embodiments of the devices are configured with tips that have a wide spread for cutting and elevating tissue, and with tips that may be maneuvered to condense bone graft material being implanted at a surgical site concealed within the tissue.