Bionic oral cavity structure for testing and application thereof

Patent metadata

Field	Value
Publication number	US-11726016-B2
Application number	US-202017123074-A
Country	US
Kind code	B2
Filing date	Dec 15, 2020
Priority date	Sep 11, 2019
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A bionic oral cavity structure for testing and application thereof are provided for solving a technical problem that actual test process of the conventional bionic oral cavity structure needs to be improved. The bionic oral cavity structure for testing includes: an upper jaw, a lower jaw, a drive unit, a sensor and a controller, wherein a gum is made of a soft elastic material, and a base of the gum has a through-hole; a cap is formed by extending upward from a top opening of the through-hole; the tooth comprises a molar made of a hard material, and an implant; a top end of the implant passes through the through-hole of the gum and then extends into the cap; the gum and the implant are detachably mounted on the mounting plate; the sensor is a flexible sensor which covers the cap.

First claim

What is claimed is:

1. A bionic oral cavity structure for testing, comprising: an upper jaw, a lower jaw, a drive unit, a sensor and a controller, wherein each of the upper jaw and the lower jaw comprises a tooth, a gum and a mounting plate; the tooth, the gum, and the mounting plate of the upper jaw are mounted on a static platform, and the static platform is mounted on a frame; the tooth, the gum, and the mounting plate of the lower jaw are installed on a movable platform, and the movable platform is connected to the drive unit, thereby moving up and down as well as left and right; the drive unit and the sensor are both electrically connected to the controller; wherein:
the gum is made of a soft elastic material, and a base of the gum has a through-hole drilled from top to bottom; a cap is formed by extending upward from a top opening of the through-hole; the tooth comprises a molar made of a hard material, and an implant; a top end of the implant passes through the through-hole of the gum and then extends into the cap; the gum and the implant are detachably mounted on the mounting plate; the sensor is a flexible sensor which covers the cap; the flexible sensor is provided with at least one sensing unit corresponding to a top portion of the cap and with at least two sensing units evenly distributed around a side portion of the cap; a bottom portion of the molar has a counterbore, and the molar is mounted on the gum; a structure constituted by the flexible sensor, the cap and the top end of the implant is integrally embedded in and tightly cooperate with the counterbore; the molar, the flexible sensor, the cap and the implant are arranged in sequence with no gap.

2. The bionic oral cavity structure, as recited in claim 1 , wherein the gum is made of silica gel; in a non-testing state, the cap tightly cooperates with the molar and is in an elastic compression state; when an external force is applied, the cap is further compressed.

3. The bionic oral cavity structure, as recited in claim 1 , wherein in a non-testing state, an internal side wall and a top wall of the counterbore are tightly attached to a non-sensing end of the flexible sensor; an external side wall and a top wall of the cap are tightly attached to a sensing end of the flexible sensor; and an internal side wall and an internal top wall of the cap are tightly attached to an external side wall and an external top wall of the top end of the implant.

4. The bionic oral cavity structure, as recited in claim 1 , wherein the implant is screwed with the mounting plate and fastened by a nut.

5. The bionic oral cavity structure, as recited in claim 1 , wherein a bottom end surface of the base is attached to the mounting plate, and the implant penetrates the mounting plate and the base from bottom to top.

6. The bionic oral cavity structure, as recited in claim 1 , wherein the lower jaw is provided with a tongue, and the tongue is made of silica gel and mounted on the mounting plate.

7. The bionic oral cavity structure, as recited in claim 1 , wherein the tooth of the upper jaw and the tooth of the lower jaw correspond to each other, and each of the upper jaw and the lower jaw is provided with an eddy current sensor; the eddy current sensor of the upper jaw part is installed directly above the implant with a certain gap, and the eddy current sensor of the lower jaw is installed directly below the implant with a certain gap.

8. The bionic oral cavity structure, as recited in claim 1 , wherein three pairs of the drive units are evenly distributed around the movable platform; each of the drive units comprises a motor, a screw rod, a screw nut, a sliding block, a guide post, a connecting rod and a spherical hinge, wherein an output end of the motor is connected to the screw rod; two ends of the screw rod and two ends of the guide post are respectively supported on a support plate and are all arranged along a vertical direction; the screw nut is matched with the screw rod and fixedly connected to the sliding block; the sliding block cooperates with the guide post; two ends of the connecting rod are connected to the sliding block and the movable platform respectively through the spherical hinge; the motor and the support plate are mounted on the frame.

9. A method for testing physical properties of food comprising using the bionic oral cavity structure as recited in claim 1 .

10. A method for testing denture fatigue comprising using the bionic oral cavity structure as recited in claim 1 .

Assignees

• Univ Jiangnan

Inventors

• Yu Jinghu
• Cao Shu
• Qian Shanhua
• Cao Yi
• Zhou Xingyu
• Yu Hao

Classifications

• G01N3/02 Primary

  Details · CPC title

• G01N3/32 Primary

  by applying repeated or pulsating forces · CPC title

• A61C13/00

  Dental prostheses; Making same (tooth crowns for capping teeth A61C5/70; dental implants A61C8/00) · CPC title

• G01N2203/0073

  Fatigue · CPC title

• G01N3/38

  generated by electromagnetic means · CPC title