# US 2019/0167948 A1 · Balloon catheter with transient radiopaque marking

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- Number: US 2019/0167948 A1
- Document ID: US20190167948A1
- Status: Published application
- Kind: A1
- Application number: 16/270,970
- Filed: 2019-02-08
- Published: 2019-06-06
- Earliest claimed: 2012-12-31
- Assignees: Clearstream Technologies Limited
- Applicants: Clearstream Technologies Limited
- Inventors: Stephanie KLOCKE; Rob RIGHI
- Web page: https://patentgrep.com/patent/US20190167948A1

## CPC

- A61M 25/0108: {using radio-opaque or ultrasound markers}
- A61F 2/82: Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents (stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07)
- A61M 25/10: Balloon catheters ({A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02;} inflatable balloons for placing stents or stent-grafts A61F2/958 {; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00})
- A61M 25/1011: {Multiple balloon catheters}
- A61M 25/104: {used for angioplasty}
- A61F 2210/0004: bioabsorbable
- A61F 2250/0098: radio-opaque, e.g. radio-opaque markers
- A61M 2025/105: {having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes}
- A61M 2025/1075: {having a balloon composed of several layers, e.g. by coating or embedding}
- A61M 2025/1079: {having radio-opaque markers in the region of the balloon}
- A61M 2025/1088: {having special surface characteristics depending on material properties or added substances, e.g. for reducing friction}
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- 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

Treating a treatment area in the vasculature includes a first catheter adapted for positioning at the treatment area, said first catheter including a first balloon having a transient radiopaque material corresponding to the treatment area. A second catheter adapted for positioning at a treatment area includes a treatment that substantially matches the transient radiopaque material, preferably so that the length and/or position of the treatment corresponds to the length and/or position of the transient radiopaque material. Related kits, assemblies, and methods are also described.

## Claims

### Claim 1

A method of performing an intervascular procedure at a treatment area, comprising:
transferring a transient radiopaque material corresponding to the treatment area from a first balloon to the treatment area; and
providing a treatment to the treatment area, the treatment corresponding in length to the transient radiopaque material.

### Claim 2 (depends on 1)

The method of claim 1, wherein the treatment area is a lesion having a length, and including the step of providing the treatment corresponding to the length of the lesion.

### Claim 3 (depends on 1)

The method of claim 1, wherein the treatment area is a lesion having a length, and including the step of providing the transient radiopaque marking corresponding to the length of the lesion.

### Claim 4 (depends on 1)

The method of claim 1, further including the step of providing the transient radiopaque marking bounding a working surface of the first balloon.

### Claim 5 (depends on 1)

The method of claim 1, wherein the step of providing a treatment comprises providing a therapeutic agent, a stent, a stent graft, a cutter, a focused force wire, or any combination thereof.

### Claim 6 (depends on 1)

The method of claim 1, wherein the step of providing the treatment comprises providing a second balloon on the catheter.