Measuring apparatus for measuring occlusal distance and/or space of missing tooth

Patent metadata

Field	Value
Publication number	US-11071614-B2
Application number	US-201816327963-A
Country	US
Kind code	B2
Filing date	Mar 27, 2018
Priority date	Nov 2, 2017
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

A measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth comprises a connecting rod and a measuring head disposed at an upper end of the connecting rod, the measuring head comprises a first measuring ruler and a second measuring ruler perpendicular to the first measuring ruler, a lower end of the second measuring ruler and one end of the first measuring ruler are connected to the connecting rod. The occlusal distance checking can be performed simply and directly by using the first measuring ruler to directly compare whether it can pass through the occlusion gap in the region to be repaired, the gap of the single missing tooth analysis is performed easily and directly by using the second measuring ruler to directly compare whether it can pass the gap in the measuring region to be repaired.

First claim

What is claimed is:

1. A measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth, comprising a connecting rod and a measuring head, wherein the measuring head is disposed at an upper end of the connecting rod, the measuring head comprises a first measuring ruler and a second measuring ruler, a lower end of the second measuring ruler is connected to the upper end of the connecting rod, the first measuring ruler and the second measuring ruler are perpendicular to each other, and one end of the first measuring ruler is connected to a side of the connecting rod, wherein, the second measuring ruler comprises a first measuring part, a second measuring part and a third measuring part which are sequentially connected from bottom to top, wherein the first measuring part, the second measuring part and the third measuring part are rectangular plates and widths thereof are sequentially reduced, and a lower end of the first measuring part is connected to the upper end of the connecting rod.

2. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 1 , wherein-the first measuring ruler comprises a sixth measuring part, a fourth measuring part and a fifth measuring part connected sequentially, wherein the fifth measuring part is disposed away from the connecting rod, and an end of the sixth measuring part away from the fourth measuring part is connected to a side of the upper end of the connecting rod.

3. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 2 , wherein both the fifth measuring part and the fourth measuring part are rectangular plates, and a width of the fifth measuring part is less than a width of the fourth measuring part.

4. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 1 , the connecting rod comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are sequentially connected from top to bottom, wherein, in the three-dimensional Cartesian coordinate system, when a lower end of the lower connecting rod is placed at the origin o, and the lower connecting rod is placed at the positive half of the y axis, the middle connecting rod inclines toward the negative half of the z axis, therefore, an included angle A is formed between the middle connecting rod and the lower connecting rod on the y-z plane, a lower end of the upper connecting rod is connected to the lower middle connecting rod, and an upper end of the upper connecting rod inclines toward the positive half of the z axis and forms an included angle B with the middle connecting rod.

5. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 4 , wherein the first measuring ruler and the middle connecting rod are located on opposite sides of the upper connecting rod respectively.

6. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 4 , wherein an angle of the included angle A and the included angle B is 120°-135°.

7. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 4 , wherein the middle connecting rod also inclines toward the negative half or the positive half of the x axis, thus, an included angle C is formed between the middle connecting rod and the lower connecting rod on the x-y plane, the included angle C ranges from 120° to180° and not equal to 180°.

8. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 4 , wherein the angle of the included angle A is 135°, and the angle of the included angle B is 120°.

9. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 4 , wherein the connecting rod further comprises a connecting cylinder and a hexagonal body, wherein the hexagonal body is connected between the connecting cylinder and the lower connecting rod.

10. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 1 , wherein the connecting rod comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are sequentially connected from top to bottom, wherein, in the three-dimensional Cartesian coordinate system, when a lower end of the lower connecting rod is placed at the origin o, and the lower connecting rod is placed at the positive half of the y axis, the middle connecting rod inclines toward the negative half of the z axis, therefore, an included angle A is formed between the middle connecting rod and the lower connecting rod on the y-z plane, a lower end of the upper connecting rod is connected to the middle connecting rod, and an upper end of the upper connecting rod inclines toward the positive half of the z axis and forms an included angle B with the middle connecting rod.

11. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 2 , wherein the connecting rod comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are sequentially connected from top to bottom, wherein, in the three-dimensional Cartesian coordinate system, when a lower end of the lower connecting rod is placed at the origin o, and the lower connecting rod is placed at the positive half of the y axis, the middle connecting rod inclines toward the negative half of the z axis, therefore, an included angle A is formed between the middle connecting rod and the lower connecting rod on the y-z plane, a lower end of the upper connecting rod is connected to the middle connecting rod, and an upper end of the upper connecting rod inclines toward the positive half of the z axis and forms an included angle B with the middle connecting rod.

12. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 3 , wherein the connecting rod comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are sequentially connected from top to bottom, wherein, in the three-dimensional Cartesian coordinate system, when a lower end of the lower connecting rod is placed at the origin o, and the lower connecting rod is placed at the positive half of the y axis, the middle connecting rod inclines toward the negative half of the z axis, therefore, an included angle A is formed between the middle connecting rod and the lower connecting rod on the y-z plane, a lower end of the upper connecting rod is connected to the middle connecting rod, and an upper end of the upper connecting rod inclines toward the positive half of the z axis and forms an included angle B with the middle connecting rod.

13. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 10 , wherein the first measuring ruler and the middle connecting rod are located on opposite sides of the upper connecting rod respectively.

14. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 11 , wherein the first measuring ruler and the middle connecting rod are located on opposite sides of the upper connecting rod respectively.

15. The measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth according to claim 12 , wherein the first measuring ruler and the middle connecting rod are located on opposite sides of the upper connecting rod respectively.

Assignees

• Univ Sichuan

Inventors

• Yu Haiyang
• Chen Zhaozhao
• Chen Xi

Classifications

• A61C19/05 Primary

  for determining occlusion · CPC title

• G01B5/02

  for measuring length, width or thickness (G01B5/004, G01B5/08 take precedence) · CPC title

• A61C8/0089

  Implanting tools or instruments · CPC title

• G01B3/50 Primary

  of limit-gauge type, i.e. "go/no-go" (G01B3/48 takes precedence) · CPC title

• A61C19/04

  Measuring instruments specially adapted for dentistry ({A61C5/44 takes precedence; testing vitality of teeth A61B5/0534;} radiation diagnosis specially adapted for dentistry A61B6/51) · CPC title