Systems for withdrawing body fluid and methods for configuring systems for withdrawing body fluids

Patent metadata

Field	Value
Publication number	US-9456782-B2
Application number	US-201113272734-A
Country	US
Kind code	B2
Filing date	Oct 13, 2011
Priority date	Jul 16, 2003
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

The invention relates to a system for withdrawing body fluid from a body part via a withdrawal site located on the surface of the body part, with at least one sensor for detecting at least one variable dependent on the location or state of the withdrawal site, and with an evaluation unit for evaluating the at least one variable detected by the at least one sensor and for triggering a reaction, dependent on the value of the detected variable, in the system for withdrawing body fluid, said reaction serving to prepare the system for puncturing the surface of the body part, and with at least one puncturing device for creating an opening in the body at the withdrawal site. The invention further relates to an integrated analysis system, to a method for configuring a system for withdrawal of body fluid, and to a method for selecting a menu item from a menu for controlling a system for withdrawing body fluid from a body part.

First claim

What is claimed is:

1. A method for configuring a system for withdrawing body fluid from a body part via a withdrawal site, comprising:
measuring a value of at least one variable dependent on the location and state of the withdrawal site by using a sensor, wherein at least one of the following variables is measured: temperature, electrical resistance, electrical conductivity, electrical current strength, electrical voltage, position, inclination, pressure, acceleration, or optical variables;
selecting a setting, which is dependent on the value of the measured variable to thereby influence the withdrawal of body fluid, in the system wherein the setting is selected dependent on the value of the measured at least one variable and by the selection of the setting the system for withdrawing body fluid is automatically adapted to withdrawal conditions before skin at the withdrawal site is punctured;
wherein at least one of the following settings is selected as a function of the value of the measured variable:
blocking or releasing of a puncturing device, wherein the releasing of the puncturing device is bringing the puncturing device into a state ready for activation;
setting a puncture depth of a puncturing device selected for creating an opening in the body;
setting a geometric shape of a press-on area of the system;
setting the cross section of an opening in a press-on area of the system through which opening a puncturing device can penetrate into a surface of the body part;
selecting one of at least two press-on areas included in the system;
selecting one of at least two puncturing devices contained in the system;
setting a duration of a body fluid withdrawal procedure;
displaying text on a display device; or
displaying or setting evaluation parameters which are used by the system for analyzing body fluid; and
wherein the value of the measured variable is stored on a storage medium using GPS or radio-clock information.

2. The method of claim 1 , wherein the sensor comprises at least one of the following sensors: a pressure sensor, a proximity sensor, a resistance sensor, or a conductivity sensor, wherein the setting comprises a blocking or releasing of a puncturing value of the variable detected by the pressure sensor, the proximity sensor, the resistance sensor or the conductivity sensor indicates that the withdrawal site of the body part is pressed with sufficient or insufficient pressure onto a compression unit.

3. The method of claim 1 wherein the withdrawal conditions are selected from the group consisting of skin temperature, shape of the body part, thickness of the skin and contact pressure of the body part.

4. The method of claim 1 , wherein the system comprises a compression unit for increasing an internal pressure in the area of the withdrawal site when collecting the body fluid, in such a way that body fluid is expressed out of the opening, wherein said compression unit converts pressure exerted in a primary direction into a movement into a secondary direction so that the internal pressure in an area of the body part is increased.

5. A method for selecting a menu item from a menu in a system for controlling a system for withdrawing body fluid from a body part, comprising:
measuring a value of one or more variables including temperature, electrical resistance, electrical conductivity, electrical current strength, electrical voltage, position, inclination, pressure, acceleration, or optical variables, the variables corresponding to the location and state of the withdrawal site; and
selecting the menu item from the menu as a function of the value of the measured variable, wherein the menu item may be at least one of:
blocking or releasing of a puncturing device, wherein the releasing of the puncturing device is bringing the puncturing device into a state ready for activation;
setting a puncture depth of a puncturing device selected for creating an opening in the body;
setting a geometric shape of a press-on area of the system;
setting the cross section of an opening in a press-on area of the system through which opening a puncturing device can penetrate into a surface of the body part;
selecting one of at least two press-on areas included in the system;
selecting one of at least two puncturing devices contained in the system;
setting a duration of a body fluid withdrawal procedure;
displaying text on a display device; or
displaying or setting evaluation parameters which are used by the system for analyzing body fluid.

6. The method of claim 5 wherein the value of the measured variable is stored on a storage medium using GPS or radio-clock information.

7. A method for configuring a system for withdrawing body fluid from a body part via a withdrawal site, comprising:
measuring a value of at least one variable dependent on the location and state of the withdrawal site by using a sensor, wherein at least one of the following variables is measured: temperature, electrical resistance, electrical conductivity, electrical current strength, electrical voltage, position, inclination, pressure, acceleration, or optical variables;
selecting a setting, which is dependent on the value of the measured variable to thereby influence the withdrawal of body fluid, in the system wherein the setting is selected dependent on the value of the measured at least one variable and by the selection of the setting the system for withdrawing body fluid is automatically adapted to withdrawal conditions before skin at the withdrawal site is punctured;
wherein at least one of the following settings is selected as a function of the value of the measured variable:
blocking or releasing of a puncturing device, wherein the releasing of the puncturing device is bringing the puncturing device into a state ready for activation;
setting a puncture depth of a puncturing device selected for creating an opening in the body;
setting a geometric shape of a press-on area of the system;
setting the cross section of an opening in a press-on area of the system through which opening a puncturing device can penetrate into a surface of the body part;
selecting one of at least two press-on areas included in the system;
selecting one of at least two puncturing devices contained in the system;
setting a duration of a body fluid withdrawal procedure;
displaying text on a display device; or
displaying or setting evaluation parameters which are used by the system for analyzing body fluid; and
wherein the system comprises a compression unit for increasing an internal pressure in the area of the withdrawal site when collecting the body fluid, in such a way that body fluid is expressed out of the opening, wherein said compression unit converts pressure exerted in a primary direction into a movement into a secondary direction so that the internal pressure in an area of the body part is increased.

8. The method of claim 7 , wherein the sensor comprises at least one of the following sensors: a pressure sensor, a proximity sensor, a resistance sensor, or a conductivity sensor, wherein the setting comprises a blocking or releasing of a puncturing device when the variable detected by the pressure sensor, the proximity sensor, the resistance sensor or the conductivity sensor indicates that the withdrawal site of the body part is pressed with sufficient or insufficient pressure onto a compression unit.

9. The method of claim 7 , wherein the withdrawal conditions are selected from the group consisting of skin temperature, shape of the body part, thickness of the skin and contact pressure of the body part.

Assignees

• Rasch-Menges Jürgen
• Schmelzeisen-Redeker Günter
• Schulat Jochen
• Schmid Wilfried
• Pachl Rudolf
• Roche Diabetes Care Inc

Inventors

• Rasch-Menges Jürgen
• Schmelzeisen-Redeker Günter
• Schulat Jochen
• Schmid Wilfried
• Pachl Rudolf

Classifications

• A61B5/150503

  Single-ended needles (hollow piercing element tip design A61B5/150396) · CPC title

• A61B5/150412

  Pointed piercing elements, e.g. needles, lancets for piercing the skin (blade-like piercing elements A61B5/150442) · CPC title

• A61B5/150954

  Means for the detection of operative contact with patient, e.g. by temperature sensitive sensor · CPC title

• A61B5/489 Primary

  Blood vessels · CPC title

• A61B5/441

  Skin evaluation, e.g. for skin disorder diagnosis · CPC title