QQCustomer Service
News Center >Technical Support > NTC Thermistor
Technical Support
NTC Thermistor and Measurement of Blood Sugar
2019/07/16 03:07:16

For people with diabetes, blood sugar measurement has become a part of everyday life. Accurate blood sugar data helps doctors better judge their condition and determine appropriate treatment options. EXSENSE Electronic Technology Co., Ltd. adopts advanced semiconductor process, combined with independent intellectual property rights, to achieve high-reliability, batch production of NTC thermistor, NTC chip, which can provide more accurate data for measurement of glucose sugar.

Today, let’s introduce a blood glucose measuring system that measures blood sugar levels while monitoring the patient's physical condition, allowing doctors to respond more quickly in an emergency. This blood glucose measuring system includes a blood glucose meter with NTC thermistor and a measurement data management device.This blood glucose meter is a portable apparatus which operates with a lithium ion battery and has a size with which it can be generally accommodated in a hand of an adult.

When doctor, nurse measures the blood sugar level of a patient, usually takes a very small amount of a blood sample from an earlobe, a finger, an arm or the like of the patient with blood glucose meter and gets the blood sugar data. The blood glucose meter is then connected to the measurement data management device via a USB cable and the data is transferred and received with the measurement data management device. If there is a measurement data sheet in the blood glucose meter, the measurement data stored in the measurement data sheet can be transmitted to the measurement data management device.

If a predetermined command is transmitted from the measurement data management apparatus 104, then the measurement data management apparatus 104 can download blood glucose meter setting data from the blood glucose meter. In addition, measurement data management device can upload patients’ data, user group’s data, etc. to the blood glucose meter. Moreover, the blood glucose meter includes a high-sensitivity NTC thermistor, which measures the air temperature of the blood glucose meter's environment when measuring blood sugar based on changes in the resistance of the NTC thermistor. The resistance value of the NTC thermistor is converted from an A/D converter to a value, which is recorded to a predetermined area of the random access memory and the non-volatile memory. Because there is no need to measure a received light intensity and an air temperature at the same time, the A/D converter is used commonly by the NTC thermistor.






Reference Data:



Takafumi Nomura, Kanagawa (JP);

Kou Ishikawa, Kanagawa (JP);

Masayoshi Suda, Kanagawa (JP);

Toshihisa Nakamura, Kanagawa (JP);

Hideyuki Momoki, Kanagawa (JP)



Terumo Kabushiki Kaisha,

Shibuya-Ku, Tokyo (JP)



Subject to any disclaimer, the term of this

patent is extended or adjusted under 35

U.S.C. 154(b) by 1004 days.


Appl. No.: 13/076,099


Filed: Mar. 30, 2011


Prior Publication Data

US 2011 FO196218A1 Aug. 11, 2011


Related U.S. Application Data

Continuation of application No. PCT/JP2009/066564, filed on Sep. 24, 2009.


Foreign Application Priority Data

Sept. 30, 2008 (JP) .................................2008-25483O


Int. C1.

G01N 33/00    (2006.01)

C12Q 1/00     (2006.01)

A61B 5/15     (2006.01)

A61B 5/145    (2006.01)

A61B 5/157    (2006.01)

G06F 19/00    (2011.01)

G01N 33/487  (2006.01)

G01N 35/00   (2006.01)


U.S. C1.

CPC .............. C12Q 1/006 (2013.01); A61B 5/1411(2013.01); A61B 5/14532 (2013.01);

CPC .............. A61B 5/157 (2013.01); G06F 19/3406 (2013.01); G06F 19/3418 (2013.01); G01N 33/48792 (2013.01); A61B 2560/0242 (2013.01); A61B 2562/08 (2013.01); G01N 35/00871 (2013.01); G01N 2035/00881 (2013.01)

USPC ............................................ 422/67; 422/68.1


Field of Classification Search

CPC ............... A61B 5/14532; C12O 1/006; G01N 33/48792; G01N 35/00871

USPC ........................................... 422/68.1, 500, 67

See application file for complete search history.


References Cited


2004/0117062 A1     6/2004 Bonney et al.

2004/0172284 A1     2004 Sullivan et al.

2010/0256990 A1     910/2010 Horiguchi et al.



EP     1837787 A1     9/2007

EP     1956508 A2     8/2008

JP     2-279056 A     11/1990

JP     10-019888 A    1/1998

JP     10-318928 A    12/1998

JP     2000-060803 A  2/2000

JP     2003-099529 A  4/2003

JP     2003-215122 A  7/2003

JP     2003-337861 A  11/2003

WO   WO 02/078593 A2 10/2002

WO   WO 2009/031636 A1 3/2009




Extended European Search Report issued on Jul. 3, 2013, by the European Patent Office in corresponding European Patent Application No. 098 17685.2 (6 pages).



Primary Examiner — Sam P Siefke

Attorney, Agent, or Firm — Buchanan IngeSoll & Rooney PC

mqu.cn site.nuo.cn