Pressure sensor for use in an artery

• US 6,743,180 B1
• Filed: 08/18/2000
• Issued: 06/01/2004
• Est. Priority Date: 08/15/1997
• Status: Expired due to Term

• Current Assignee: Academisch Ziekenhuis Leiden H.O.D.N. Lumc
• Original Assignee: Rijksuniversiteit te Leiden
• Inventors: Van Bockel, J. Hajo
• Primary Examiner(s): Hindenburg, Max F.
• Assistant Examiner(s): ASTORINO, MICHAEL C
• Application Number:
  US09/642,132
• Time in Patent Office: 1,383 Days
• Field of Search: 623/1--, 623/1.36, 623/1, 623/12, 623/11, 600/300-301, 600/484-486, 600/505, 600/462, 600/465, 600/468, 600/479, 600/480, 128/897-898, 606/191, 606/194, 606/198
• US Class Current: 600/505
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/6862 Stents
• CPC Class Codes: A61B 5/6876 Blood vessel
• CPC Class Codes: A61B 5/6882 Anchoring means
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2250/0002 for data transfer

Abstract

A device for introduction into an animal or human body, especially into an artery. The device is preferably positioned in an aneurysmal sac in an artery between the wall of the artery and the wall of an endoprosthesis. The device has at least a pressure sensor and transducer for wirelessly transmitting data available from the pressure sensor.

Claims

1. A device for introduction into an aneurysmal sac of an artery of a human or animal body between the wall of the artery and the wall of an endoprosthesis disposed in the artery, said device comprising:

at least a pressure sensor and a transponder for wirelessly transmitting data available from the pressure sensor, said pressure sensor and said transponder each being configured to be positioned inside the aneurysmal sac.

2. The device of claim 1, wherein the device has outer dimensions such that it can be introduced into the artery through a catheter.

3. The device of claim 1, wherein the pressure sensor and the transponder are interconnected.

4. The device of claim 1, wherein the pressure sensor has a range of at least 50-150 mm Hg (6.67*10³ Pa−

20.0*10³Pa).

5. The device of claim 1, further comprising means for storing data available from the pressure sensor, said means connected at least to the transponder.

6. The device of claim 1, further comprising a stabilizer for positioning the device in a stable position within the aneurysmal sac.

7. The device of claim 6, wherein the stabilizer is configured to position the device at least partly within blood clogged in the aneurysmal sac.

8. The device of claim 6, wherein the stabilizer is configured to position the device at least partly on the endoprosthesis.

9. The device of claim 1, wherein the pressure sensor and the transducer are contained within the same housing.

10. The device of claim 1, wherein the pressure sensor has a range of at least 25-175 mm Hg (3.3*10³ Pa−

23.3*10 Pa).

11. The device of claim 1, wherein the pressure sensor has a range of at least 0-220 mm Hg (0-29.3*10³ Pa).

20. The device of claim 2, wherein the device has an outer diameter of approximately 1 mm to approximately 3 mm and an outer length of approximately 2 mm to approximately 4 mm.

21. The device of claim 6, wherein the stabilizer comprises a ring shaped element.

23. The device of claim 1, further comprising a housing in which both the pressure sensor and the transponder are disposed, the housing being made of biocompatible plastic.

25. The device of claim 23, wherein the device is configured to be introduced into the artery through a catheter.

26. The device of claim 25, wherein the device has an outer diameter of approximately 1 mm to approximately 3 mm and an outer length of approximately 2 mm to approximately 4 mm.

12. A kit comprising:

a device for introduction into an aneurysmal sac of an artery of a human or animal body between the wall of the artery and the wall of an endoprosthesis disposed in the artery, said device comprising;

a pressure sensor, and

a transponder for wirelessly transmitting data available from the pressure sensor, said pressure sensor and said transponder each being configured to be positioned inside the aneurysmal sac; and

an endoprosthesis.

13. The kit of claim 12, wherein said endoprosthesis is an endovascular prosthesis for use in the abdomen.

14. The kit of claim 12, further comprising:

means for exciting the transponder when positioned in an artery of a human or animal; and

means for reading data transmitted from the pressure sensor and/or data means through the transponder to the outside of the human or animal.

15. The kit of claim 12, further comprising means for introduction into an artery, through which the device is introduced into the artery.

16. The kit of claim 15, wherein the means for introduction comprises means for positioning the device in an aneurysmal sac.

17. The kit of claim 15, wherein the means for introduction comprises a catheter.

18. The kit of claim 17, wherein the device is configured to fit into a lumen of the catheter.

19. A kit of parts comprising the following components:

(i) a device for introduction into an aneurysmal sac of a mammalian artery between the wall of the mammalian artery and the wall of an endoprosthesis disposed in the mammalian artery, said device comprising;

a pressure sensor, and

a transponder for wirelessly transmitting data provided by the pressure sensor, said pressure sensor and said transponder each being configured to be positioned within the aneurysmal sac;

(ii) an endovascular prosthesis;

(iii) means for exciting the transponder when positioned in the mammalian artery;

(iv) means for externally interpreting data transmitted from the transponder; and

(v) a catheter through which the device is to be introduced into the mammalian artery, said catheter including means for positioning the device in an aneurysmal sac, said device further having been configured to fit into the catheter'"'"'s lumen.

22. A device for introduction into an aneurysmal sac of an artery of a human or animal body between the wall of the artery and the wall of an endoprosthesis disposed in the artery, said device comprising:

a pressure sensor;

a transponder for wirelessly transmitting data available from the pressure sensor; and

means for storing data available from the pressure sensor, the means for storing data connected at least to the transponder;

the pressure sensor, the transponder, and the means for storing data each being configured to be positioned inside the aneurysmal sac.

24. A device for monitoring pressure in an aneurysmal sac of an artery of a human or animal, the aneurysmal sac comprising a space between a wall of the artery and a wall of an endoprosthesis disposed in the artery, the device comprising:

a housing configured to be positioned inside the aneurysmal sac;

a pressure sensor disposed in the housing, the pressure sensor comprising a pressure sensing element extending at least partly outside the housing; and

a transponder disposed in the housing.

27. The device of claim 24, wherein the pressure sensor and the transponder are interconnected.

28. The device of claim 24, wherein the pressure sensor has a range of at least 50-150 mm Hg (6.67×

10³ Pa−

20.0×

10³ Pa).

29. The device of claim 24, wherein the pressure sensor has a range of at least 25-175 mm Hg (3.3×

10³ Pa−

23.3×

10³ Pa).

30. The device of claim 24, wherein the pressure sensor has a range of at least 0-220 mm Hg (0.0 Pa−

23.3×

10³ Pa).

31. The device of claim 24, further comprising means for storing data available from the pressure sensor, said means connected at least to the transponder.

32. The device of claim 24, further comprising a stabilizer for maintaining the device in a substantially stable position within the aneurysmal sac.

33. The device of claim 32, wherein the stabilizer comprises a ring shaped element.

34. The device of claim 32, wherein the stabilizer is configured to maintain the device in a substantially stable position at least partly within blood clogged in the aneurysmal sac.

35. The device of claim 32, wherein the stabilizer is configured to maintain the device in a substantially stable position at least partly on the endoprosthesis.

36. A kit comprising:

a device for monitoring pressure in an aneurysmal sac of an artery of a human or animal, the aneurysmal sac comprising a space between a wall of the artery and a wall of an endoprosthesis disposed in the artery, the device comprising;

a housing configured to be positioned inside the aneurysmal sac,

a pressure sensor disposed in the housing, the pressure sensor comprising a pressure sensing element extending at least partly outside the housing, and a transponder disposed in the housing; and

an endoprosthesis.

37. The kit of claim 36, wherein the endoprosthesis comprises an endovascular prosthesis for use in the abdomen.

38. The kit of claim 36, further comprising:

means for exciting the transponder when positioned inside the human or animal; and

means for reading data transmitted from the pressure sensor through the transponder to the outside of the human or animal.

39. The kit of claim 36, further comprising means for introduction of the device into the artery.

40. The kit of claim 39, wherein the means for introduction comprises means for positioning the device in an aneurysmal sac.

41. The kit of claim 39, wherein the means for introduction comprises a catheter.

42. The kit of claim 41, wherein the device is configured to fit into the lumen of the catheter.

43. The kit of claim 42, wherein the device has an outer diameter of approximately 1 mm to approximately 3 mm and an outer length of approximately 2 mm to approximately 4 mm.

44. A kit comprising:

a device for monitoring pressure in an aneurysmal sac of an artery of a human or animal, the aneurysmal sac comprising a space between a wall of the artery and a wall of an endoprosthesis disposed in the artery, the device comprising;

a housing configured to be positioned inside the aneurysmal sac,

a pressure sensor disposed in the housing;

the pressure sensor comprising a pressure sensing element extending at least partly outside the housing, and

a transponder connected to the pressure sensor disposed in the housing;

a vascular endoprosthesis;

means for exciting the transponder when positioned inside the human or animal;

means for externally interpreting data transmitted from the pressure sensor through the transponder; and

a catheter for introducing the device into the artery, the catheter including means for positioning the device in the aneurysmal sac, the device further being configured to fit into the lumen of the catheter.