Endovascular graft with pressure, temperature, flow and voltage sensors

• US 7,025,778 B2
• Filed: 06/07/2002
• Issued: 04/11/2006
• Est. Priority Date: 06/07/2002
• Status: Expired due to Fees

• Current Assignee: Lifeshield Sciences LLC (Acacia Research Corporation)
• Original Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Inventors: Hayashi, Reid K., Concemi, Alfred
• Primary Examiner(s): Snow, Bruce
• Assistant Examiner(s): Miller, Cheryl
• Application Number:
  US10/165,200
• Publication Number:
  US 20030229388A1
• Time in Patent Office: 1,404 Days
• Field of Search: 623/1.13, 623/1.23, 623/1.35, 623/1.34, 623/1.1, 623/66.1, 623/912, 623/1, 623/1.16, 600/485, 600/486
• US Class Current: 623/1.34
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02014 Determining aneurysm
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/026 Measuring blood flow A61B3/1233, A61B3/1241 take precedence
• CPC Class Codes: A61B 5/076 Permanent implantations telemetry using implanted circuitry A61B5/0031; implanted stimulators for therapy A61N1/3605, A61N1/362, A61N1/372
• CPC Class Codes: A61B 5/1459 invasive, e.g. introduced into the body by a catheter A61B5/1464 takes precedence
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2250/0002 for data transfer
• CPC Class Codes: Y10S 623/912 Method or apparatus for measuring or testing prosthetic

Abstract

An endovascular graft having one or more sensors attached to its internal and external surface, one or more power sources attached to its external surface and one or more transmitters attached to its external surface, the sensors capable of measuring pertinent parameters and each transmitter capable of transmitting signals containing pertinent parameters to one or more receiving devices located outside the patient'"'"'s body. The sensors may measure pressure, temperature, blood flow, electrical potential, or any combination thereof. The sensors may be attached at specific locations on the graft material, thereby providing pertinent parameters from critical points inside the vasculature, or may be attached to form an array of sensors over the internal and external surface of the graft material, thereby providing a complete profile of pertinent parameters throughout the vasculature covered by the endovascular graft.

Claims

1. A modular endoluminal prosthesis for repairing vasculature in the area of an aneurysm sac, comprising:

a first endovascular graft component; and

a second endovascular graft component configured to be delivered within vasculature separate from the first endovascular graft component, the second endovascular graft component including mating structure that accomplishes mating the second endovascular graft component to the first endovascular graft component in vasculature and having one or more sensors attached at a juncture between the first endovascular graft component and the second endovascular graft component, wherein the sensors of the second endovascular graft component detect parameters in the aneurysm sac relating to an endoleak at the juncture of the first endovacular graft and the second endovascular graft.

2. The prosthesis of claim 1, further comprising:

one or more power sources attached to external surfaces of the first and second endovascular graft components; and

one or more transmitting devices attached to the first and second endovascular graft components, each transmitting device capable of transmitting signals containing the parameters measured by one or more sensors to a location outside a patient'"'"'s body.

3. The prosthesis of claim 2, further comprising one or more receiving devices located outside a patient'"'"'s body, each receiving device capable of receiving signals transmitted by one or more transmitters.

4. The prosthesis of claim 2, wherein each power source is attached to a midsection of one of the first and second endovascular graft components.

5. The prosthesis of claim 2, wherein each transmitter is attached to a midsection of one of the first and second endovascular graft components.

6. The prosthesis of claim 1, the first endovascular graft component further comprising one or more sensors attached thereto.

7. The prosthesis of claim 1, wherein one of the first and second endovascular graft components is generally tubular and each have a superior end, an inferior end and a midsection.

8. The prosthesis of claim 1, wherein at least one sensor is located on an internal surface of one of the first and second endovascular graft components.

9. The prosthesis of claim 1, wherein sensors cover substantially a circumferential area of an internal surface of one of the first and second endovascular graft components.

10. The prosthesis of claim 1, wherein at least one sensor is located on an external surface of one of the first and second endovascular graft components.

11. The prosthesis of claim 1, wherein sensors cover substantially a circumferential area of an external surface of one of the first and second endovascular graft components.

12. The prosthesis of claim 1, wherein one or more sensors are located on an external surface of one or more of the endovascular graft components at a midsection thereof.

13. The prosthesis of claim 1, wherein the first endovascular graft component has a trunk portion and two or more limb portions.

14. The prosthesis of claim 13, wherein at least one sensor is located on an internal surface of the first endovascular graft component.

15. The prosthesis of claim 13, wherein sensors cover substantially a circumferential area of an internal surface of the first endovascular graft component.

16. The prosthesis of claim 13, wherein at least one sensor is located on an external surface of each limb portion.

17. The prosthesis of claim 13, wherein sensors cover substantially a circumferential area of an external surface of the first endovascular graft component at superior and inferior ends of each limb portion.

18. The prosthesis of claim 13, wherein one or more sensors are located external the first endovascular graft component at a midsection of each limb portion.

19. The prosthesis of claim 1, wherein one or more of the sensors measure pressure.

20. The prosthesis of claim 1, wherein one or more of the sensors measure temperature.

21. The prosthesis of claim 1, wherein one or more of the sensors measure a constituent altered by the presence of minute amounts of blood flow.

22. The prosthesis of claim 21, wherein the constituent measured is oxygen.

23. The prosthesis of claim 21, wherein the constituent measured is an enzyme.

24. The prosthesis of claim 21, wherein the constituent measured is a protein.

25. The prosthesis of claim 21, wherein the constituent measured is a nutrient.

26. The prosthesis of claim 1, wherein one or more of the sensors measure electrical potential.

27. The prosthesis of claim 1, wherein one or more of the sensors measure a parameter related to the attachment between the first and second endovascular graft components.