Ultrasonic vascular closure method

a technology of vascular closure and ultrasonic sound, which is applied in the field of low frequency medical devices and methods to achieve the effect of preventing foam sealant leakage and reducing the volume of the chamber

US20090228039A1Inactive Publication Date: 2009-09-10BACOUSTICS LLC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2009-09-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the use of a low frequency ultrasonic device for the delivery and activation of collagen based foam sealants to a human and / or animal patient for sealing puncture wounds in vascular tissues. The ultrasonic vascular closure method relates to an ultrasonic generator, an ultrasound transducer, a chamber containing a foam sealant, a transducer tip, a radiation surface, an orifice located at the distal end of the chamber. The foam sealant is ejected into a puncture wound and activated with ultrasonic waves emitting from the radiation surface. The ultrasonic waves induce vibrations within the foam sealant, slightly warming the foam sealants to assist the rapid sealing the puncture. The ultrasonic waves also provide and anesthetic effect for the pain and discomfort from the puncture site.
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Description

BACKGROUND OF THE INVENTION

[0001] The present invention relates to a low frequency medical device and methods for the sealing of tissue puncture wounds after surgical procedures.

[0002] With improvement in medical devices and procedures, it is increasingly becoming possible to avoid the trauma and complications caused by open surgery using various transcatheter techniques. Some examples of these procedures include; angiography, percutaneous transluminal coronary angioplasty, stenting, atherectomy and catheter ablation. These new methods are being developed because they offer significant benefits with respect to patient recovery, potential complications and cost. The early discharge of patients undergoing these elective and interventional procedures hinges on the lack of bleeding complications at the access site after the procedure sheath is removed from the artery. The size of the access route, coupled with the routine administration of anticoagulants, creates a strong need to stop ble...

Examples

Embodiment Construction

[0019]The figures generally illustrate embodiments of an ultrasonic device 10 including aspects of the present inventions. The particular exemplary embodiments of the ultrasonic device 10 illustrated in FIGS. 1-4 have been chosen for ease of explanation and understanding of various aspects of the present invention. These illustrated embodiments are not meant to limit the scope of coverage but instead to assist in understanding the context of the language used in this specification and the appended claims. Accordingly, many variations from the illustrated embodiments may be encompassed by the appended claims.

[0020]The present invention provides an ultrasonic device 10 for sealing a patient's tissue puncture wounds using ultrasound radiation. As illustrated in FIGS. 1 and 2, the ultrasonic device 10 includes an ultrasound generator connected to an ultrasound transducer 50 through a releasable connector 70.

[0021]A transducer housing 55 is fixedly attached to the ultrasound transducer 5...