Blood test device

A blood test apparatus comprising:

• a housing which comprises a chassis;
• an internal cylinder body which is provided at one side of the housing;
• a reciprocator that moves back and forth inside the internal cylinder body;
• a blood collection needle which is connected to the reciprocator;
• a blood sensor to which the blood collection needle is directed and provided at a tip part of the internal cylinder body;
• a measuring circuit to which a signal of the blood sensor is supplied;
• a negative pressure provider which is drivable in dependence on the measuring circuit;
• and
• an external cylinder body which covers the internal cylinder body and comprises an opening part at a tip side of the internal cylinder body, and is provided so as to be able to move relative to the internal cylinder body and to return to a predetermined relative position,
• wherein the negative pressure provider is configured to create a negative pressure inside the external cylinder body, and
• wherein the tip part of the internal cylinder body is behind the opening part of the external cylinder body in the predetermined relative position.

A blood test apparatus comprising:

• a housing which comprises a chassis;
• an internal cylinder body which is provided at one side of the housing;
• a reciprocator that moves back and forth inside the internal cylinder body;
• a blood collection needle which is connected to the reciprocator;
• a blood sensor to which the blood collection needle is directed and provided at a tip part of the internal cylinder body;
• a measuring circuit to which a signal of the blood sensor is supplied;
• a negative pressure provider which is drivable in dependence on the measuring circuit;
• an external cylinder body which covers the internal cylinder body and comprises an opening part at a tip side of the internal cylinder body, and is provided so as to be movable relative to the internal cylinder body and to return to a predetermined relative position;
• and
• a move detecting sensor that detects the relative movement of the external cylinder body, or a skin contact detecting sensor that detects contact between a tip part of the external cylinder body and skin,
• wherein the negative pressure provider is configured to create a negative pressure inside the external cylinder body, and
• wherein the skin contact detecting sensor comprises two or more electrical conductors provided on the opening part of the external cylinder body.

A blood test apparatus comprising:

• a housing which comprises a chassis;
• an internal cylinder body which is provided at one side of the housing;
• a reciprocator that moves back and forth inside the internal cylinder body;
• a blood collection needle which is connected to the reciprocator;
• a blood sensor to which the blood collection needle is directed and provided at a tip part of the internal cylinder body;
• a measuring circuit to which a signal of the blood sensor is supplied;
• a negative pressure provider which is drivable in dependence on the measuring circuit;
• an external cylinder body which covers the internal cylinder body and comprises an opening part at a tip side of the internal cylinder body, and is provided so as to be movable relative to the internal cylinder body and to return to a predetermined relative position;
• and
• a move detecting sensor that detects the relative movement of the external cylinder body, or a skin contact detecting sensor that detects contact between a tip part of the external cylinder body and skin,
• wherein the negative pressure provider is configured to create a negative pressure inside the external cylinder body, and
• wherein the negative pressure provider stops when the move detecting sensor detects a return of the external cylinder body to the predetermined relative position with respect to the internal cylinder, or when the skin contact detecting sensor detects a non-contact state of the skin.

A blood test apparatus comprising:

• a housing which comprises a chassis;
• an internal cylinder body which is provided at one side of the housing;
• a reciprocator that moves back and forth inside the internal cylinder body;
• a blood collection needle which is connected to the reciprocator;
• a blood sensor to which the blood collection needle is directed and provided at a tip part of the internal cylinder body;
• a measuring circuit to which a signal of the blood sensor is supplied;
• a negative pressure provider which is movable in dependence on the measuring circuit;
• an external cylinder body which covers the internal cylinder body and comprises an opening part at a tip side of the internal cylinder body, and is provided so as to be able to be movable relative to the internal cylinder body and to return to a predetermined relative position;
• and
• a timer and a display that are connected to the measuring circuit,
• wherein the negative pressure provider is configured to create a negative pressure inside the external cylinder body, and
• wherein the timer measures a predetermined driving time of the negative pressure provider, and the display displays that puncturing is allowed, after the predetermined driving time has passed.

A method for examining blood using a blood test apparatus including:

• a housing which comprises a chassis;
• an internal cylinder body which is provided at one side of the housing;
• a reciprocator that moves back and forth inside the internal cylinder body;
• a blood collection needle which is connected to the reciprocator;
• a blood sensor to which the blood collection needle is directed and provided at a tip part of the internal cylinder body;
• a measuring circuit to which a signal of the blood sensor is supplied;
• a negative pressure provider which is drivable in dependence on the measuring circuit;
• an external cylinder body which covers the internal cylinder body and comprises an opening part at a tip side of the internal cylinder body, and is provided so as to be movable relative to the internal cylinder body and to return to a predetermined relative position;
• and
• a move detecting sensor that detects the relative movement of the external cylinder body, or a skin contact detecting sensor that detects contact between a tip part of the external cylinder body and skin,
• wherein the negative pressure provider is configured to create a negative pressure inside the external cylinder body, and
• wherein the method comprises:
• stopping the negative pressure provider based on a signal from the move detecting sensor or the skin contact detecting sensor.