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US 10,300,250 B2Granted
Device for the treatment of varicose veins
AssigneeGefasspraxis Dr. Erpen AG
InventorThomas Erpen
Life of this patent
Estimating the term…
Abstract
A device for treatment of varicose veins includes a catheter (1), which can be inserted into a vein to be treated. There is a balloon (2) with at least one cutting element (3) for cutting at least part of an inner wall of the vein arranged on a proximal end (1a) of the catheter. The catheter has side openings (7a-7c), through which a sclerosing agent can be introduced into the vein. The at least one cutting element includes a cutting edge configured to cut intima and media of the vein when withdrawing the balloon from the vein after treatment with the sclerosing agent.
Claims25
A device for treatment of varicose veins, comprising:
- an outer catheter, which is insertable into a vein to be treated, the outer catheter extending lengthwise in an axial direction,
- a balloon arranged on a proximal end of the outer catheter,
- at least one cutting element for cutting at least part of an inner wall of the vein arranged on the balloon on the outer catheter, wherein the outer catheter comprises side openings, through which a sclerosing agent can be introduced into the vein, and
- wherein the at least one cutting element includes a cutting edge that is elongated along the axial direction of the outer catheter, a length of the cutting edge along the axial direction of the outer catheter being greater than a width of the cutting edge, the cutting edge being configured to cut intima and media of the vein in order that a mechanical effect of the at least one cutting element destroys the intima and the media of the vein when withdrawing the balloon from the vein after treatment with the sclerosing agent.
1 more element
A device for treatment of varicose veins, comprising:
- an outer catheter, which is insertable into a vein to be treated, the outer catheter extending lengthwise in an axial direction,
- a balloon arranged on a proximal end of the outer catheter,
- at least one cutting element for cutting at least part of an inner wall of the vein arranged on the balloon on the outer catheter,
- wherein the outer catheter comprises side openings, through which a sclerosing agent can be introduced into the vein, and
- wherein the at least one cutting element includes a cutting edge that is elongated along the axial direction of the outer catheter, a length of the cutting edge along the axial direction of the outer catheter being greater than a width of the cutting edge, the cutting edge being configured to cut intima and media of the vein in order that a mechanical effect of the at least one cutting element destroys the intima and the media of the vein when withdrawing the balloon from the vein after treatment with the sclerosing agent,
- wherein the at least one cutting element has a maximum height nearest a forward-most proximal portion of the at least one cutting element, and a height which decreases from the forward-most proximal portion to a rearmost distal portion of the at least one cutting element towards a distal end of the outer catheter.
3 more elements
A device for treatment of varicose veins, comprising:
- an outer catheter, which is insertable into a vein to be treated, the outer catheter extending lengthwise in an axial direction,
- a balloon arranged on a proximal end of the outer catheter,
- at least one cutting element for cutting at least part of an inner wall of the vein arranged on the balloon on the outer catheter,
- wherein the outer catheter comprises side openings, through which a sclerosing agent can be introduced into the vein, and
- wherein the at least one cutting element includes a cutting edge that is elongated along the axial direction of the outer catheter, a length of the cutting edge along the axial direction of the outer catheter being greater than a width of the cutting edge, the cutting edge being configured to cut intima and media of the vein in order that a mechanical effect of the at least one cutting element destroys the intima and the media of the vein when withdrawing the balloon from the vein after treatment with the sclerosing agent,
- wherein the at least one cutting element has a proximal, first end, a curved intermediate section which segues the first end into a distal, second end, the first and second ends being arranged radially offset at a non-zero angle when viewed in the axial direction in which the outer catheter extends.
3 more elements
Dependencies are inferred from the claim text.