Periodontal Surgery Instrument Minimally Invasive Flap Elevation
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Solution Overview
Problem
Conventional periodontal surgeries for gingival defects require large incisions, are technique-sensitive, and result in significant morbidity, long recovery times, and unsightly scars, with limited effectiveness for severe defects and multiple teeth due to the need for multiple incisions and complex flap designs.
Innovation Solution
The Chao Trans-Mucosal and Papillae Elevation (TMPE) approach involves a minimally invasive technique with a small incision (3-5 mm) using specially designed instruments to detach and extend a flap without enlarging the incision, elevate papillae, and advance the flap to cover defects, promoting fibrin formation without suturing, allowing for efficient correction of severe gingival defects in all quadrants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional periodontal surgery is performed with large incisions and flap grafting, then gingival defects can be covered, but the surgery becomes complicated with long recovery time and significant morbidity
Solution Approach 1:
The invention extracts and removes the problematic large incisions and complex flap grafting procedures from the surgical approach. Instead, it uses a small incision device to directly access and fill the gingival defect with bone graft material, eliminating the need for large flaps and complex suturing while maintaining effective defect coverage
Solution Approach 2:
The invention introduces a small incision access device as an intermediary tool that enables direct delivery of bone graft material to the defect site through a minimal incision. This intermediary device bridges the gap between the need for effective defect filling and the desire to minimize surgical trauma and complexity
2Reliability
If large incisions are made to access the defect, then the defect can be treated, but the incision area increases leading to longer recovery and higher infection risk
Solution Approach 1:
The invention removes the large incision requirement from the surgical procedure by using a specialized small incision device that can access and treat the gingival defect through a minimal 3-5mm incision, thereby extracting the source of increased infection risk and longer recovery time
Solution Approach 2:
The invention applies local quality by making the incision size specific and localized to only what is necessary for device insertion (3-5mm), rather than making large incisions that expose extensive tissue. This localized minimal access reduces the area susceptible to infection while maintaining adequate access for treatment
3Adaptability or versatility
If multiple incisions are made for multiple teeth, then all defects can be addressed, but the surgery time and recovery period increase significantly
Solution Approach 1:
The invention applies universality by designing a single small incision device that can treat multiple teeth and multiple defects in sequence through one incision site. The device can be reused to fill multiple defects without requiring separate incisions for each tooth, making the treatment approach universally applicable across multiple sites while minimizing total incision area and recovery time
Solution Approach 2:
The invention merges multiple treatment actions into a single surgical approach by using one small incision to access and treat multiple gingival defects on adjacent teeth. Instead of making separate incisions for each defect, the device allows sequential treatment of multiple sites through the same minimal access point, combining multiple therapeutic actions into one procedure
4Ease of manufacture
If conventional instruments are used, then standard procedures can be performed, but the incision size cannot be minimized and operating angles are awkward
Solution Approach 1:
The invention changes the critical parameter of incision size from the conventional large incisions (requiring extensive flap elevation) to a minimized incision of only 3-5mm. This parameter change is achieved through a specifically designed device with a narrow profile that can be inserted through the small incision, fundamentally altering the surgical approach from large-scale flap surgery to minimal access surgery
Solution Approach 2:
The invention inverts the conventional approach by making the incision first and using that small incision to deliver the treatment, rather than making large incisions to create flaps and then attempting to minimize trauma. The device is designed to work through the small incision from the oral side, reversing the traditional sequence and methodology of periodontal surgery
Data Source
AI summary
The present invention relates generally to methods of performing periodontal surgeries, and instruments for performing said surgeries. A method of performing periodontal surgery to correct a gingival defect of a patient according to a general embodiment comprises the steps of making an incision at or near a fornix of the patient near the gingival defect, inserting an instrument into the incision to detach a flap, advancing the flap horizontally without enlarging the incision, elevating a papilla within the flap, stretching the flap to cover the gingival defect, and pressing against the flap to promote fibrin formation. An instrument for performing periodontal surgery according to one general embodiment comprises a handle, a first shank connecting to and extending from the handle, a connector section, and a blade section. The connector section further comprises a first end and a second end, wherein the first end connects to the first shank at a first angle, and the second end connects to the blade section at a second angle. Further, the blade section is approximately perpendicular to a plane formed by the handle and the connector section, and a cutting surface of the blade section is parallel to the second end of the connector section.