The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2020
Filed:
Sep. 12, 2014
Callisyn Biomedical, Inc., North Andover, MA (US);
Fei Yao, North Andover, MA (US);
Xiaowei Sun, North Andover, MA (US);
Other;
Abstract
There is provided a microcatheter with a tapering wall thickness shaft having varying stiffness/flexibility along its length from proximal end near the medical practitioner to the distal end near the target site in the patient, such as with at least three segments. The shaft is prepared of a thermoplastic material having varying composition along its length. The distal end may be shaped according to the required use just prior to the medical procedure. The microcatheter is particularly adapted for the delivery of microspheric compositions for treatment of tumors or fibroids by embolization of peripheral blood vessels of the tumor or fibroid.