Needle Apparatus for Closing Septal Defects and Methods for Using Such Apparatus

a septal defect and needle needle technology, applied in the field of needle needle needles for closing septal defects, can solve the problems of affecting the life of the patient being treated, posing substantial morbidity and mortality risks, and procedures that are obviously highly invasiv

Inactive Publication Date: 2012-02-16
GINN RICHARD S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This method provides a safer and more effective means of closing septal defects, reducing morbidity and mortality risks associated with traditional invasive procedures and minimizing the risk of frame structure failure.

Problems solved by technology

Occasionally, however, these foramen fail to close and create hemodynamic problems, which may ultimately prove fatal unless treated.
Occasionally, this membrane and tissue mass fail to form or completely close the foramen ovale, which may be fatal if untreated.
Such procedures are obviously highly invasive and pose substantial morbidity and mortality risks.
Such structures, however, involve frame structures that support membranes, both of which may fail during the life of the patient being treated, opening the defect, and / or releasing segments of the structure within the patient's heart.

Method used

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  • Needle Apparatus for Closing Septal Defects and Methods for Using Such Apparatus
  • Needle Apparatus for Closing Septal Defects and Methods for Using Such Apparatus
  • Needle Apparatus for Closing Septal Defects and Methods for Using Such Apparatus

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Experimental program
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Embodiment Construction

[0039]Turning now to the drawings, FIGS. 1 and 2 show a first preferred embodiment of an apparatus 10 for closing a septal defect, such as a PFO or PDA, in accordance with the present invention. Generally, the apparatus 10 includes a needle apparatus 12 and a delivery apparatus 50 for introducing and deploying the needle apparatus 12.

[0040]With particular reference to FIG. 1, the needle apparatus 12 includes an elongate needle 14 including a first end 16 defining a tissue-penetrating tip, a second end 18 defining a substantially blunt tip, and an intermediate region 20 between the first and second ends 16, 18. The needle 14 may be formed from a variety of substantially rigid biocompatible materials, e.g., stainless steel.

[0041]Preferably, the needle 14 includes a longitudinal slot 22 therein that extends between the intermediate region 20 and the second end 18. The second end 18 of the needle 14 may include a. flared outer edge 24 that extends transversely outwardly, and a rounded i...

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Abstract

Apparatus and methods for closing a septal defect including a flap of tissue partially detached from a septum of a heart. A needle is advanced through a patient's vasculature within a delivery apparatus until the needle is disposed within a first chamber adjacent the septum. The needle is directed through the flap of tissue until the needle is disposed within a second chamber opposite the septum. A filament attached to an intermediate region of the needle is pulled, thereby causing the needle to pivot about the intermediate region such that the ends of the needle straddle the septal opening. A locking element is secured to the filament to secure the flap of tissue against the septum, and the filament is cut. Alternatively, the filament is biased to coil to engage the flap of tissue and secure the needle against the septum to close the opening.

Description

CROSS-RELATED APPLICATIONS[0001]This application is a continuation of U.S. Ser. No. 10 / 734,670, filed Dec. 11, 2003, which is a divisional of U.S. Ser. No. 09 / 948,453, filed Sep. 7, 2001, now U.S. Pat. No. 6,702,835, each of which are fully incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates generally to apparatus and methods for treating septal defects, and more particularly to apparatus and methods for closing a patent foramen ovale or other septal defect that include a flap of tissue using a needle device.BACKGROUND[0003]During development of a fetus in utero, blood is generally oxygenated by the mother's placenta, not the fetus' developing lungs. Most of the fetus' circulation is shunted away from the lungs through specialized vessels or foramens that are open during fetal life, but generally close shortly afterbirth. Occasionally, however, these foramen fail to close and create hemodynamic problems, which may ultimately prove fatal unless ...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): A61B17/06A61B17/00A61B17/04
CPCA61B17/0057A61B2017/00659A61B2017/00579A61B2017/00243A61B2017/00663
InventorGINN, RICHARD S.
OwnerGINN RICHARD S