# US 11,896,213 B2 · Arthroscopic cannula and suture management system

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- Number: US 11,896,213 B2
- Document ID: US11896213B2
- Status: Granted
- Kind: B2
- Application number: 17/143,075
- Filed: 2021-01-06
- Published: 2021-05-06
- Granted: 2024-02-13
- Earliest claimed: 2019-07-08
- Assignees: Cannuflow, Inc.
- Applicants: Cannuflow, Inc.
- Inventors: Theodore R. Kucklick
- Web page: https://patentgrep.com/patent/US11896213B2

## CPC

- A61B 17/0469: {Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery}
- A61B 17/3421: {Cannulas}
- A61B 17/3423: {Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247)}
- A61B 17/06061: {Holders for needles or sutures, e.g. racks, stands (hand-held holding instruments A61B17/0483; holders for articles A61B50/20; racks for syringes or for hypodermic or infusion needles A61M5/008)}
- A61B 17/3468: {for implanting or removing devices, e.g. prostheses, implants, seeds, wires (devices for implanting seeds A61M37/0069)}
- A61B 2017/0479: {Packages or dispensers for MIS suturing instruments}
- A61B 2017/3484: {Anchoring means, e.g. spreading-out umbrella-like structure}
- A61B 2017/3488: {Fixation to inner organ or inner body tissue}
- A61B 2017/349: {Trocar with thread on outside}
- A61B 2017/3492: {against the outside of the body}
- A61M 2039/0291: {method or device for implanting it in the body}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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)}

## Abstract

A flexible portal cannula for use in arthroscopic surgery. Distally positioned flaps extend radially outwardly from the outer surface of the cannula and are resiliently foldable to lie against the outer surface of the cannula during insertion into a surgical portal, and resiliently biased to return to the radially outwardly extending position when unconstrained. Slots disposed around the perimeter of the flaps for anchoring and sorting sutures.

## Claims

### Claim 1

A cannula for use in arthroscopic surgery, said cannula comprising;
a cannula tube, said cannula tube having a proximal end, a distal end, and a lumen extending therethrough, and a distal tip on the distal end, said distal tip being configured for insertion through an incision into an arthroscopic workspace, proximate a joint in a patient;
a plurality of flaps disposed on the distal end of the tube, proximate the distal tip, said flaps extending radially outwardly from an outer surface of tube, said flaps being configured to be resiliently foldable in a proximal direction when constrained while passing through the incision, to lie against the outer surface of the tube, and being configured to be resiliently biased to return to a radially outwardly extending position when unconstrained; and
wherein each said flap has a perimeter, said flap having at least one slot disposed around the perimeter of the flap, said slot being configured to accept a segment of suture.

### Claim 2 (depends on 1)

The cannula of claim 1 further comprising a segment of suture engaging at least one slot.