# US 11,998,182 B2 · Access site management system for percutaneous vascular access

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,998,182 B2
- Document ID: US11998182B2
- Status: Granted
- Kind: B2
- Application number: 17/811,359
- Filed: 2022-07-08
- Published: 2022-12-29
- Granted: 2024-06-04
- Earliest claimed: 2020-12-03
- Assignees: xDot Medical Inc.
- Applicants: xDot Medical Inc.
- Inventors: Aashiish Agnihotri
- Web page: https://patentgrep.com/patent/US11998182B2

## 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 17/0401: {Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors (A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811)}
- A61B 17/0466: {Suture bridges}
- A61B 17/0487: {Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks (suture anchors A61B17/0401; wound clamps or clips A61B17/08; ligaturing clamps or clips A61B17/122)}
- A61B 2017/00398: {using powered actuators, e.g. stepper motors, solenoids}
- A61B 2017/00663: {the implement being a suture}
- A61B 2017/00867: {shape memory effect}
- A61B 2017/0409: {Instruments for applying suture anchors}
- A61B 2017/0414: {having a suture-receiving opening, e.g. lateral opening}
- A61B 2017/0437: {the barbs being resilient or spring-like}
- A61B 2017/0464: {for soft tissue}
- A61B 2017/0488: {Instruments for applying suture clamps, clips or locks}
- A61B 2017/0496: {for tensioning sutures}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

The disclosure provides a dynamic vascular access and closure device for radial cinching of an access site. The device includes a tensioning tube, a resilient member disposed within the tensioning tube, and a plurality of sutures extending axially between a distal end of the tensioning tube and a proximal end of the tensioning tube. A proximal end of each of the plurality of sutures can be configured to attach to the resilient member such that movement of that suture causes compression or extension of the resilient member within the tensioning tube to provide cinching to the sutures.

## Claims

### Claim 1

A method of cinching a vascular access site, the method comprising:
providing a cinching device, the cinching device comprising:
a tensioning tube comprising a resilient member disposed within the tensioning tube; and
a plurality of sutures extending axially between a distal end of the tensioning tube and a proximal end of the tensioning tube, wherein:
a proximal end of each of the plurality of sutures is configured to directly couple with the resilient member such that movement of the plurality of sutures causes compression or extension of the resilient member within the tensioning tube, and
the compression or extension of the resilient member enables, via the plurality of sutures, reversible opening or closing of the vascular access site within a blood vessel;
attaching distal ends of the plurality of sutures at least partially around the vascular access site;
inserting a medical device into the vascular access site;
retracting the medical device from the access site, the retracting causing dynamic and reversible cinching of the vascular access site situated between the distal ends of the plurality of sutures by compression or extension of the resilient member within the tensioning tube,
a tensioning tube comprising a resilient member disposed within the tensioning tube; and
a plurality of sutures extending axially between a distal end of the tensioning tube and a proximal end of the tensioning tube, wherein a proximal end of each of the plurality of sutures is configured to attach to the resilient member such that movement of the plurality of sutures causes compression or extension of the resilient member within the tensioning tube.

### Claim 2 (depends on 1)

The method of claim 1, wherein attaching distal ends of a plurality of sutures at least partially around the vascular access site comprising attaching the distal ends via suture anchors.

### Claim 3 (depends on 1)

The method of claim 1, wherein during inserting the medical device, the plurality of sutures are not tensioned.

### Claim 4 (depends on 3)

The method of claim 3, further comprising tensioning the plurality of sutures to cinch the vascular access site around the medical device.

### Claim 5 (depends on 4)

The method of claim 4, wherein tensioning the plurality of sutures to cinch the vascular access site around the medical device comprises compressing or extending, via a force applicator disposed within the tensioning tube, the resilient member.

### Claim 6 (depends on 1)

The method of claim 1, further comprising deploying a suture lock to irreversibly cinch the vascular access site in response to determining that no further insertion of a medical device into the vascular access site is desired.

### Claim 7 (depends on 1)

The method of claim 1, wherein the resilient member is configured to be:
in a first position to cause the plurality of sutures to cinch the vascular access site situated between the distal ends of the plurality of sutures when the distal ends of the plurality of sutures are attached to a blood vessel; or
in a second position when the distal ends of the plurality of sutures are pulled apart to open the vascular access site, wherein a first length of the resilient member in the first position is greater than a second length of the resilient member in the second position.