# US 10,864,095 B2 · Stent and method for manufacturing the stent

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- Number: US 10,864,095 B2
- Document ID: US10864095B2
- Status: Granted
- Kind: B2
- Application number: 15/872,735
- Filed: 2018-01-16
- Published: 2018-08-16
- Granted: 2020-12-15
- Earliest claimed: 2004-09-01
- Assignees: Angiomed GmbH & Co. Medizintechnik KG
- Applicants: Angiomed GmbH & Co. Medizintechnik KG
- Inventors: Thomas O. Bales, Jr.; Charles R. Slater; Scott Jahrmarkt
- Web page: https://patentgrep.com/patent/US10864095B2

## CPC

- A61F 2/88: the wire-like elements formed as helical or spiral coils
- A61F 2/844: folded prior to deployment
- A61F 2/91: made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
- A61F 2/915: with bands having a meander structure, adjacent bands being connected to each other
- A61F 2/848: having means for fixation to the vessel wall, e.g. barbs
- A61F 2002/0864: {Fixation of tendon or ligament between anchor elements, e.g. by additional screws in the anchor, anchor crimped around tendon}
- A61F 2002/91533: {characterised by the phase between adjacent bands}
- A61F 2002/91541: {Adjacent bands are arranged out of phase}
- A61F 2002/91558: {connected peak to peak}
- A61F 2002/91583: {by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band}
- A61F 2002/9665: {with additional retaining means}
- A61F 2250/0098: radio-opaque, e.g. radio-opaque markers
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A stent that has a reduced state, an expanded state, and a delivery state, includes helical windings, a bridge, and a sacrificial bridge. The helical windings define a cylinder with a helical axis including a strut having a straight portion connected to a curved portion, wherein the straight portion aligns with the helical axis. The bridge connects adjacent windings. The sacrificial bridge connects adjacent windings and is configured for removal in the expanded state.

## Claims

### Claim 1

A method of making a stent comprising:
forming a stent comprising:
a plurality of helical windings defining a cylinder with a longitudinal axis, each of the plurality of helical windings including a plurality of struts having straight portions connected to curved portions, the straight portions aligning with the longitudinal axis in a reduced state;
a plurality of permanent bridges connecting adjacent windings; and
a plurality of sacrificial bridges connecting adjacent windings with the plurality of permanent bridges; and
removing the plurality of sacrificial bridges prior to inserting the stent into a patient.

### Claim 2 (depends on 1)

The method of claim 1, further comprising expanding the stent into an expanded state for removing the plurality of sacrificial bridges.

### Claim 3 (depends on 2)

The method of claim 2, further comprising compressing the stent from the expanded state to a delivery state for insertion of the stent into the patient.

### Claim 4 (depends on 3)

The method of claim 3, having an M-D ratio over 800, over 1000, or equal to 1180.