Continuous blood glucose measurement apparatus
The present disclosure relates to a continuous blood glucose measurement device configured to prevent, in a state where a body attachment unit is inserted in and attached to a human body, an incision portion made by a guide needle from being formed to surround at least a part of a sensing area formed at a sensing member, whereby an incision portion is not formed around the sensing area so as to prevent the incision portion from causing a drop in a blood glucose measurement value and thus enable detection of an accurate blood glucose measurement value from the early stage of operation. Further, the guide needle has a shape not surrounding at least a part of the sensing area, so as to prevent, even without an additional device, the guide needle from forming an incision portion around the sensing area in a human body and thus enhance, by a simple structure, the accuracy of blood glucose measurement.
1 . A continuous glucose measurement apparatus comprising:
a body attachable unit configured to be insertedly attachable to a body by an applicator and periodically measure blood glucose; and
wherein the body attachable unit comprises:
a sensor module configured to be insertable to the body, and
a guide needle comprising a first side and a second side to cover an outside of at least a partial area of the sensor module, and configured to guide insertion of the sensor module to the body and to, after linearly moving integrally together with the sensor module, be extracted and removed from the body,
wherein an end of the guide needle is arranged to protrude further than an end of the sensor module toward a body insertion direction or protrude as much as the end of the sensor module,
wherein the sensor module comprises:
a sensing area to react with the blood glucose in the body,
wherein a first surface of the sensor module faces the first side of the guide needle, and a second surface of the sensor module faces the second side of the guide needle,
wherein the sensing area is formed at an end part and on the first surface of the sensor module,
wherein the guide needle comprises a longitudinal channel opened along the longitudinal direction and disposed between the first side and the second side, and
wherein the guide needle comprises a cutout portion only formed at the end portion of the first side of the guide needle in an area facing the sensing area not to cover the at least a partial area of the sensing area of the sensor module.
2 . The continuous glucose measurement apparatus of claim 1 , wherein the sensor module comprises a sensor probe portion formed to be elongated along the body insertion direction so that at least a partial section of the sensor probe portion is insertable into the body, and
the sensing area is formed at an end part of the sensor probe portion.
3 . The continuous glucose measurement apparatus of claim 2 , wherein the guide needle is formed to have a shape of covering an outside of the sensor probe portion.
4 . The continuous glucose measurement apparatus of claim 3 , wherein the sensor probe portion is formed to have a plate shape elongated along the body insertion direction,
the sensing area is formed at one surface of the sensor probe portion, and
the cutout portion of the guide needle is formed to have an opened shape in which an area of the guide needle facing the one surface of the sensor probe portion at which the sensing area is formed is opened.
5 . The continuous glucose measurement apparatus of claim 3 , wherein an incised portion formed by the cutout portion does not cover the sensing area.
6 . The continuous glucose measurement apparatus of claim 1 , wherein the cutout portion of the guide needle is formed to have a shape of not covering an entire area of the sensing area.
7 . The continuous glucose measurement apparatus of claim 1 , wherein the cutout portion of the guide needle is formed to have a shape of not covering the partial area of the sensing area.
8 . The continuous glucose measurement apparatus of claim 1 , wherein the guide needle comprises:
an incision portion formed at a front end portion of the guide needle to incise skin of the body in a process in which the guide needle is being inserted into the body, and
an insertion support portion formed to be extended from a back portion of the incision portion and configured to be inserted to the body continuously along an incised portion incised by the incision portion, and
wherein the cutout portion is formed at an area of the incision portion.
9 . The continuous glucose measurement apparatus of claim 1 ,
wherein the guide needle comprises a second cutout portion formed on the second side to form symmetry.