# US 11,896,206 B2 · Treatment of appendage openings

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- Number: US 11,896,206 B2
- Document ID: US11896206B2
- Status: Granted
- Kind: B2
- Application number: 16/262,280
- Filed: 2019-01-30
- Published: 2019-05-30
- Granted: 2024-02-13
- Earliest claimed: 2015-03-03
- Assignees: Transseptal Solutions Ltd.
- Applicants: Transseptal Solutions Ltd.
- Inventors: Elad Sapir
- Web page: https://patentgrep.com/patent/US11896206B2

## CPC

- A61B 17/0057: {Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect (sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009)}
- A61B 5/0044: {for the heart}
- A61B 5/02028: {Determining haemodynamic parameters not otherwise provided for, e.g. cardiac contractility or left ventricular ejection fraction}
- A61B 5/1076: {for measuring dimensions inside body cavities, e.g. using catheters (A61B3/1005 takes precedence)}
- A61B 5/1079: {using optical or photographic means}
- A61B 5/6856: {with a distal loop}
- A61B 17/3478: {Endoscopic needles, e.g. for infusion (biopsy needles A61B10/0233; catheters with injection needles A61M25/0067)}
- A61B 17/12122: {within the heart (for closing a cardiac septal defect A61B17/0057)}
- A61B 2017/00243: {cardiac}
- A61B 2017/00247: {Making holes in the wall of the heart, e.g. laser Myocardial revascularization}
- A61B 2017/00632: {Occluding a cavity, i.e. closing a blind opening}
- A61B 2090/061: {for measuring dimensions, e.g. length}
- A61B 2090/3966: {Radiopaque markers visible in an X-ray image}
- A61B 2576/023: for the heart
- G16H 30/40: for processing medical images, e.g. editing
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

A method is provided for measuring an opening of an appendage of an atrium of a subject, the method including inserting a catheter into the atrium of the subject using a transvenous approach. Thereafter, at least one loop is deployed from a wall of the catheter, such that a distal end of the loop is distal to a distal end of the catheter. Thereafter, the loop is used to measure the opening of the appendage. Other embodiments are also described.

## Claims

### Claim 1

A method for measuring an opening of an appendage of an atrium of a subject, the method comprising:
inserting a catheter into the atrium of the subject using a transvenous approach;
thereafter, deploying at least one loop from a wall of the catheter, such that a distal end of the loop is distal to a distal end of the catheter; and
thereafter, using the loop to measure the opening of the appendage.

### Claim 2 (depends on 1)

The method according to claim 1, wherein deploying the loop from the wall of the catheter comprises deploying the loop from a lateral wall of the catheter.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the method comprises measuring an opening of an appendage of a left atrium of the subject.

### Claim 4 (depends on 1)

The method according to claim 1, wherein deploying the loop comprises deploying the loop such that a normal to a plane defined by the loop intersects a line that is parallel to a longitudinal axis of the catheter at an angle that is between 10 and 90 degrees.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the method further comprises, before measuring the opening:
moving the distal end of the loop along a wall of the atrium; and
identifying the opening in response to the distal end of the loop reaching the opening.

### Claim 6 (depends on 1)

The method according to claim 1, further comprising:
in response to the measuring, selecting an implant of an appropriate size;
delivering the implant to the opening, by passing the implant through the catheter; and
implanting the implant in the opening.

### Claim 7 (depends on 5)

The method according to claim 5, wherein identifying the opening in response to the distal end of the loop reaching the opening comprises:
sensing loss of contact of the loop with the wall of the atrium upon the loop reaching the opening.

### Claim 8 (depends on 5)

The method according to claim 5, wherein identifying the opening in response to the distal end of the loop reaching the opening comprises:
sensing lunging of the loop into the appendage upon the loop reaching the opening.