Method for implanting unstented xenografts and allografts
AssigneePromedica International
InventorDonald N. Ross
Life of this patent
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Abstract
A holder for providing physiologic support to an unstented xenograft or allograft. The holder facilitates selection and implantation of a replacement unstented xenograft or allograft in the treatment of aortic heart valve dysfunction. The novel holder comprises a device replicating key dimensions of the recipient native aortic root and incorporates a trimming guide. The holder is designed for several common sizes of the recipient native aortic root and annulus.
Claims1
A method of surgically implanting an unstented pulmonary or aortic valve into a human patient to replace the patient's aortic valve, using a holder having an elongated handle, a base, three generally spoon shaped support members extending in a first direction from the base to outwardly convex enlarged ends of the support members such that the support members can provide physiologic support for the valve sinuses, and a receptacle on the base which can releasably engage an end of the handle such that the handle extends in a direction opposite the support members, comprising:
- a) excising the patient's aortic valve while leaving the aortic root in place;
- b) inserting the support members of the holder into the unstented valve to be implanted, such that the support members provide physiologic support for the valve sinuses;
- c) releasably engaging an end of the handle in the base such that the handle extends outwardly through a pulmonary or aortic artery segment of the valve;
- d) inserting the supported valve temporarily into the patient's aortic root to confirm correct size;
- e) suturing the implanted valve in place in the patient's aortic root;
- and
- f) removing the holder by pulling on the handle.
Dependencies are inferred from the claim text.