Device and method for treating hematomas and false aneurysms

• US 5,403,278 A
• Filed: 11/23/1993
• Issued: 04/04/1995
• Est. Priority Date: 04/15/1992
• Status: Expired due to Term

• Current Assignee: St Jude Medical Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Datascope Corporation (Getinge AB)
• Inventors: Ernst, J. M. P. G., Janzen, Ernst
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): MULCARE, NANCY C
• Application Number:
  US08/156,989
• Time in Patent Office: 497 Days
• Field of Search: 604/49, 604/51-53, 604/57, 604/59, 604/60, 604/164, 606/213, 623/1, 128/DIG. 8
• US Class Current: 604/60
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12186 liquid materials adapted to be injected
• CPC Class Codes: A61B 2017/1205 Introduction devices

Abstract

Hematomas and false aneurysms can be treated using a device and method which locate and the provide access to the hematoma or aneurysm. Hemostatic material is then introduced into the hematoma or aneurysm through a new puncture in such a fashion that the hemostatic material does not project into a blood vessel. This can be done by passing a guide wire through a hollow needle, removing the needle, passing a dilator over the guide wire, passing a sheath over the dilator, and then removing the dilator and passing hemostatic material through the sheath into the hematoma or false aneurysm.

Claims

1. A method of treating a hematoma comprising the steps of:

locating the hematoma;

obtaining access to said hematoma via a newly-created puncture leading to said hematoma; and

introducing hemostatic material only into said hematoma through said newly-created puncture.

2. A method according to claim 1 wherein said hematoma is a false aneurysm.

3. A method according to claim 1, further comprising the step of providing a sheath, and wherein injecting of said hemostatic material is through said sheath.

4. A method according to claim 1 wherein said hemostatic material is selected from the group consisting of collagen, calcium alginate and oxidized cellulose.

5. A method according to claim 1 wherein said hemostatic material is injected in at least two separate charges.

6. A method according to claim 1 wherein the step of locating the hematoma comprises inserting a hollow needle therein.

7. A method according to claim 1 wherein the step of locating the hematoma comprises:

providing a contrast medium;

introducing said contrast medium into said hematoma; and

observing said contrast medium in said hematoma using fluoroscopic techniques.

8. A method according to claim 6 further comprising the steps of:

inserting a guide wire through said hollow needle,

removing said needle while leaving said guide wire in place,

passing a dilator over said guide wire,

passing a sheath over said dilator, and removing said dilator,

passing said hemostatic material through said sheath into said hematoma.

9. A method for treating a false aneurysm in an artery comprising the steps of:

locating said false aneurysm,

clamping said artery upstream of said false aneurysm,

obtaining access to said false aneurysm through a newly-created puncture,

inserting a sheath through said newly-created puncture into said false aneurysm, and

inserting a charge of an hemostatic material through said sheath, only into said false aneurysm, and releasing said clamp.

10. A method according to claim 9 further comprising the step of inserting a second charge of hemostatic material through said sheath before releasing said clamp.

11. A method according to claim 10 further comprising the step of inserting at least one additional charge of hemostatic material after said clamp has been released.

12. A method according to claim 11 further comprising the step of inserting at least another charge of hemostatic material after said clamp has been released.

13. A system for use in treating hematomas which communicate with a blood vessel through an opening in a blood vessel wall, comprising:

locating means for locating said hematoma;

accessing means for gaining access to said hematoma after said hematoma has been located by said locating means, and

passing means for passing hemostatic material through a newly-created puncture, which is not said opening in said blood vessel wall, into said hematoma after said hematoma has been accessed.

14. A system according to claim 13 wherein said means for locating said hematoma comprises a hollow needle.

15. A system according to claim 13 wherein said means for gaining access to said hematoma comprises a sheath having a sheath lumen therein

16. A system according to claim 13 wherein said means for gaining access to said hematoma comprises;

a guide wire,

a dilator dimensioned so that said dilator can ride along said guide wire, and

a sheath dimensioned to accept said dilator.

17. A system according to claim 16 wherein said means for locating said hematoma comprises a hollow needle.

18. A system according to claim 15 wherein said means for passing hemostatic material into said hematoma comprises a plunger slidably received within said sheath lumen.

19. A system according to claim 13, wherein said hemostatic material comprises at least two charges of hemostatic material.