Rocker-Chute Type Finger-Clipped Oximeter

• US 20100317944A1
• Filed: 05/08/2008
• Published: 12/16/2010
• Est. Priority Date: 05/08/2008
• Status: Active Grant

• Current Assignee: Beijing Choice Electronic Technology Co., Ltd. (Tianjin Chase Sun Pharmaceutical Co., Ltd.)
• Original Assignee: Beijing Choice Electronic Technology Co., Ltd. (Tianjin Chase Sun Pharmaceutical Co., Ltd.)
• Inventors: Wang, Weihu
• Granted Patent: US 8,386,001 B2
• Time in Patent Office: Days
• US Class Current: 600/323
• CPC Class Codes: A61B 2562/02 Details of sensors specially adapted for in-vivo measurements
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6838 Clamps or clips

Abstract

The present invention discloses a finger-clipped oximeter comprising an upper case (2) and a lower case (1), wherein one of the upper case (2) and the lower case (1) is provided with a guide post (12) which enables the upper case (2) and the lower case (1) to depart from and approach to each other vertically , the other of the upper case (2) and the lower case (1) is provided with a guide sleeve (13) which enables the upper case (2) and the lower case (1) to depart from and approach to each other vertically, and a return spring (9) is provided between an end of the guide post (12) and the case provided with the guide sleeve (13). One of the upper case (2) and the lower case (1) is provided with rockers (7, 8) which are used to facilitate the upper case (2) and the lower case (1) to depart from and approach to each other vertically, the other of the upper case (2) and the lower case (1) is provided with chutes (14, 15) which are used to facilitate the upper case (2) and the lower case (1) to depart from and approach to each other vertically, and ends of the rockers (7, 8) fit with the chutes (14, 15).

Claims

1. A finger-clipped oximeter comprising an upper case and a lower case, characterized in that

one of the upper case and the lower case is provided with a guide post which enables the upper case and the lower case to depart from and approach to each other vertically, the other of the upper case and the lower case is provided with a guide sleeve which enables the upper case and the lower case to depart from and approach to each other vertically, and a return spring is to provided between an end of the guide post and the case provided with the guide sleeve;

and

one of the upper case and the lower case is provided with rockers which are used to facilitate the upper case and the lower case to depart from and approach to each other vertically, the other of the upper case and the lower case is provided with chutes which are used to facilitate the upper case and the lower case to depart from and approach to each other vertically, and ends of the rockers fit with the chutes.

2. The finger-clipped oximeter according to claim 1, characterized in that

the upper case is provided with the guide post which enables the upper case and the lower case to depart from and approach to each other vertically;

the lower case is provided with the guide sleeve which enables the upper case and the lower case to depart from and approach to each other vertically; and

the return spring is a cantilevered plate spring.

3. The finger-clipped oximeter according to claim 1, characterized in that

the lower case is provided with rockers which are used to facilitate the upper case and the lower case to depart from and approach to each other vertically;

and

the upper case is provided with chutes which are used to facilitate the upper case and the lower case to depart from and approach to each other vertically.

4. The finger-clipped oximeter according to claim 3, characterized in that

the rockers which are provided in the lower case are a U-shaped structure which extends through the lower case;

a bottom of the U-shaped structure extends through the lower case along a horizontal direction which extends through the lower case; and

two side arms of the U-shaped structure are kept parallel to longitudinal side surfaces of the lower case.

5. The finger-clipped oximeter according to claim 4, characterized in that

two side arms of the U-shaped structure are provided with ends which are bent toward the center of the U-shaped structure respectively;

the chutes which are provided in the upper case face both outer sides of the upper case; and

the ends of the two side arms of the U-shaped structure fit with the chutes of the upper case respectively.

6. The finger-clipped oximeter according to claim 1, characterized in that

two sets of the same rockers are provided along a longitudinal direction of the lower case, and two sets of the same chutes are provided along a longitudinal direction of the upper case.

7. The finger-clipped oximeter according to claim 1, characterized in that

the chutes of the upper case are provided along a horizontal direction of the upper case.

8. The finger-clipped oximeter according to claim 1, characterized in that

the chutes of the upper case are inclined at an angle of ±

20°

with respect to the horizontal direction of the upper case.

9. The finger-clipped oximeter according to claim 1, characterized in that

a gap of 0.2-0.8 mm is provided between the guide post and the guide sleeve.

10. The finger-clipped oximeter according to claim 8, characterized in that

based on an inclination angle of the chutes with respect to the horizontal direction of the upper case, lengths of the rockers are in a range of 16-20 mm.