Device and method for administering a substance

• US 7,266,227 B2
• Filed: 02/13/2002
• Issued: 09/04/2007
• Est. Priority Date: 11/30/2001
• Status: Active Grant

• Current Assignee: Brainlab AG
• Original Assignee: Brainlab AG
• Inventors: Pedain, Christoph, Tanner, Philipp, Hartlep, Andrea
• Primary Examiner(s): Bella; Matthew C.
• Assistant Examiner(s): EDWARDS, PATRICK L
• Application Number:
  US10/075,108
• Publication Number:
  US 20030114751A1
• Time in Patent Office: 2,029 Days
• Field of Search: 382128-134, 600/431, 128/922
• US Class Current: 382/128
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/2072 Reference field transducer attached to an instrument or patient
• CPC Class Codes: A61B 2034/252 indicating steps of a surgical procedure
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for
• CPC Class Codes: A61M 2005/14292 Computer-based infusion planning or simulation of spatio-temporal infusate distribution
• CPC Class Codes: A61M 5/14 Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders

Abstract

The present invention relates to: a method for planning an infusion, wherein patient data are captured and the infusion to be carried out is planned using the captured patient data; and to a computer program which may be loaded in the memory of a computer and which includes sections of software code with which the method is performed when the program is running on a computer; and to a device for planning an infusion, comprising a patient data capturing system and a computer system for carrying out planning based on the captured patient data; to a method for carrying out an infusion, wherein the infusion is planned and then carried out; and to a device for carrying out an infusion, comprising a verification device for comparing planned infusion data with actual infusion data.

Claims

1. A method for planning administration of a substance into a patient, comprising the steps of:

capturing patient data;

prior to positioning an infusion catheter in a body of the patient, using said patient data to plan an infusion of the substance into the patient;

performing a simulation of the planned infusion to obtain simulation data corresponding to a distribution of the substance within the patient;

determining from the simulation data if a desired infusion plan for administration of the substance into the patient can be obtained; and

if the determining step determines a desired substance distribution can be obtained, using a navigation system to position the infusion catheter in the body of the patient as specified by the infusion plan.

2. The method as set forth in claim 1, wherein said infusion catheter is positioned on the patient with respect to the infusion location and/or to the depth of penetration as set forth in the plan.

3. The method as set forth in claim 1, wherein said patient data are captured by a magnetic resonance method (MRI), a computer tomography method (CT), an x-ray method or an ultrasound method.

4. The method as set forth in claim 1, wherein patient parameters are obtained from said captured patient data and are used for planning said infusion.

5. The method as set forth in claim 4, wherein information on the tissue structure, tissue density, blood flow and/or metabolic properties of said tissue is used as said patient parameters.

6. The method as set forth in claim 1, wherein parameters of said substance, defining chemical, biological and/or physical properties of said substance, are used for planning said infusion.

7. The method as set forth in claim 1, wherein catheter parameters are used for planning said infusion.

8. The method as set forth in claim 1, wherein the distribution of said substance is simulated based on patient parameters obtained from said captured patient data, catheter parameters and parameters of said substance.

9. The method as set forth in claim 1, wherein a target volume and/or a distribution of the substance in the patient is pre-set, and catheter parameters and parameters of said substance are based on the preset target volume and preset distribution.

10. A computer program embodied on a computer readable medium which may be loaded in the memory of a computer, and includes sections of software code with which the steps in accordance with claim 1 may be performed when said program is running on a computer.

11. The method as set forth in claim 1, further comprising:

comparing the simulation to a desired result; and

adjusting the plan based on the comparison.

12. The method as set forth in claim 11, wherein comparing includes comparing at least one of a desired concentration of the substance in a target tissue volume relative to a simulated concentration of the substance in the target tissue volume, or a desired concentration of the substance in a non-target tissue volume relative to a simulated concentration of the substance in the non-target tissue volume.

13. A device for planning administration of a substance into a patient, comprising:

a computer system configured to use patient data captured from a patient data capturing system to plan, prior to positioning an infusion catheter in a body of the patient, an infusion of the substance into the patient based on the patient data catheter parameters and/or parameters of the substance, and to simulate the planned infusion to obtain simulation data corresponding to a distribution of the substance within the patient, wherein the simulation data is used to determine if a desired infusion plan can be obtained for maximizing the quantity of the substance administered to a target tissue volume of the patient while minimizing the delivery of the substance to non-target tissue; and

a navigation system for positioning the infusion catheter based on said desired plan.

14. A method for carrying out an infusion, comprising the steps of:

planning said infusion prior to positioning an infusion catheter in a body of a patient;

performing a simulation of the planned infusion to obtain simulation data corresponding to a distribution of the substance within the patient;

determining from the simulation data if a defined quantity of the substance is administered to a target tissue volume of the patient while minimizing the delivery of the substance to non-target tissue;

if the determining step indicates an acceptable result, using a navigation system to position the infusion catheter in the body of the patient as specified by the planned infusion; and

executing the planned infusion.

15. The infusion method as set forth in claim 14, wherein said infusion is planned in accordance with a method wherein patient data are captured and the infusion to be carried out is planned using said patient data.

16. The method as set forth in claim 14, wherein actual infusion data are compared with the planned infusion data.

17. The method as set forth in claim 16, wherein deviations between said planned infusion data and said actual infusion data are determined.

18. The method as set forth in claim 17, wherein the infusion parameters are corrected based on said determined deviations.

19. A computer program embodied on a computer readable medium which may be loaded in the memory of a computer, and includes sections of software code with which the steps in accordance with claim 14 may be performed when said program is running on a computer.