一种用于口腔显微手术的氧化锆基复合刃口刀片

By designing a zirconia-based composite cutting edge blade, the problems of optical interference, biocompatibility, and compatibility of traditional metal blades in oral microsurgery have been solved, enabling efficient and safe oral microsurgery operations.

CN224505606UActive Publication Date: 2026-07-17HANGZHOU THALES MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU THALES MEDICAL TECH CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-17

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Abstract

本实用新型提供一种用于口腔显微手术的氧化锆基复合刃口刀片，包括刀片主体、位于刀片主体一端的刀柄端、位于刀片主体另一端的刃口端，所述刃口端两侧分别设置有第一刀刃以及第二刀刃，所述刀片主体靠近刃口端的边侧布设有凹槽阵列；本实用新型可无需更换刀片即可适应不同的手术位置，并可有效避免术中反光问题。
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Claims

1. A zirconia-based composite edge blade for oral microsurgery, characterized by: It includes a blade body (1), a handle end (2) located at one end of the blade body (1), and a cutting edge end (3) located at the other end of the blade body (1). A first cutting edge (4) and a second cutting edge (5) are respectively provided on both sides of the cutting edge end (3). A groove array (6) is provided on the side of the blade body (1) near the cutting edge end (3).

2. The zirconia-based composite edge blade for oral microsurgery according to claim 1, characterized in that: The cutting surface of the first blade (4) includes a main cutting edge area (7) and a secondary cutting edge area (8). The angle between the main cutting edge area (7) and the axis of the first blade (4) is 23°-27°, and the angle between the secondary cutting edge area (8) and the axis of the first blade (4) is 13°-17°.

3. The zirconia-based composite edge blade for oral microsurgery according to claim 2, characterized in that: The main cutting edge area (7) is provided with toothed grooves (9), the tooth depth of the toothed grooves (9) is 20μm and the tooth pitch is 50μm.

4. The zirconia-based composite edge blade for oral microsurgery of claim 1, wherein: The blade body (1) consists of a matrix layer, a transition layer and a cutting edge layer from the inside out. The matrix layer is 3Y-TZP zirconia, the transition layer is a ZrO2-Al2O3 gradient sintering layer, and the cutting edge layer is zirconia with 10wt% nano diamond particles.

5. The zirconia-based composite edge blade for oral microsurgery according to claim 4, characterized in that: The thickness of the substrate layer is 0.8-1.2 mm, and the thickness of the transition layer is 45-55 μm.

6. The zirconia-based composite edge blade for microsurgery in the oral cavity according to claim 1, characterized in that: The distance between adjacent grooves in the groove array (6) is 0.3 mm.

7. The zirconia-based composite edge blade for microsurgery in the oral cavity according to claim 1, characterized in that: The blade body (1) has a mounting groove (10) in the middle position, and the groove array (6) extends to the edge of the mounting groove (10).