Patent number 8556914 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "The use of intravascular medical devices has become an effective method for treating many types of vascular disease. In general, one or more suitable intravascular device is inserted into the vascular system of the patient and navigated through the vasculature to a desired target site. Using this method, virtually any target site in the patient's vascular system may be accessed, including the coronary, cerebral, and peripheral vasculature. Examples of therapeutic purposes for intravascular devices include percutaneous transluminal angioplasty (PTA) and percutaneous transluminal coronary angioplasty (PTCA).
"When in use, intravascular devices, such as a guidewire, may enter the patient's vasculature at a convenient location and then is urged to a target region in the anatomy. The path taken within the anatomy of a patient may be very tortuous, and as such, it may be desirable to combine a number of performance features in the intravascular device. For example, it is sometimes desirable that the device have a relatively high level of pushability and torqueability, particularly near its proximal end. It is also sometimes desirable that a device be relatively flexible, particularly near its distal end, for example, to aid in steering.
"In addition, medical devices, such as a guidewire, catheter, or the like, will sometimes confront an occlusion, such as a lesion and/or stenosis when passing through the vasculature to a target location. In some cases, the occlusion may completely block the vessel as is the case with a chronic total occlusion. The success of the procedure often depends on the ability to insert the medical device through the occlusion.
"A number of different elongated medical device structures, assemblies, and methods are known, each having certain advantages and disadvantages. However, there is an ongoing need to provide alternative elongated medical device structures, assemblies, and methods. In particular, there is an ongoing need to provide alternative medical devices including structure or assemblies configured to aid in crossing an occlusion in a vessel of a patient, and methods of making and using such structures and/or assemblies."
In addition to the background information obtained for this patent, NewsRx journalists also obtained the inventor's summary information for this patent: "The invention provides several alternative designs, materials and methods of manufacturing and using alternative elongated medical device structures and assemblies. Some example embodiments relate to a medical device, such as a guidewire, catheter, or the like, that includes an elongated tubular member that includes a plurality of angled slots defined in at least a distal section thereof. The plurality of angled slots can form a generally spiral shaped pattern about the longitudinal axis of the tubular member, and can be useful, for example, in aiding a user of the device in crossing an occlusion in a vessel of a patient. For example, when an occlusion is engaged with the medical device, a rotational force may be applied such that the angled slots and/or one or more spiral shaped structure defined by the angled slots may engage the occlusion and may aid in pulling and/or drawing at least a portion of the medical device through the occlusion. In some embodiments, the distal section of the tubular member may have an outer diameter that is greater than the outer diameter of a proximal section of the tubular member. In some embodiments, a proximal section of the tubular member may include a plurality of slots defined therein, for example, that may be configured to increase the lateral flexibility of the tubular member. A number of alternative embodiments, including alternative structures and assemblies, and methods of making and using are also disclosed.
"The above summary of some embodiments is not intended to describe each disclosed embodiment or every implementation of the present invention. The Figures, and Detailed Description which follow more particularly exemplify these embodiments."
URL and more information on this patent, see: Vrba,
Keywords for this news article include: Angiology, Intravascular, Biotechnology Companies,
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