Cannuflow
Cannuflow is a U.S. medical device company that designs and manufactures innovative arthroscopy fluid management devices for knee, shoulder, and hip surgery.
Last updated September 28, 2026
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Overview
Cannuflow is a privately held medical device company based in Stevens Point, Wisconsin, United States. It specializes in the design and manufacture of surgical fluid management devices for arthroscopy — minimally invasive joint surgery. The company's product portfolio addresses chronic problems faced by surgeons performing knee, shoulder, and hip arthroscopy, including visual clarity, extravasation, and portal pain. Its flagship products include the ClearVu flexible inflow-outflow cannula, the TwoVu outflow scope sheath, the EntreVu EX anti-extravasation instrument cannula, the SportPort flexible elastomer port, and the DryVu anti-fogging fluid shield. Cannuflow was founded in 2003 by Bob Bruce, a former U.S. Army Special Forces medic and one of the first orthopedic physician assistants, who developed the original "Bravo-8" inflow/outflow cannula that became the company's first product, ClearVu. The company launched publicly in April 2003 with the introduction of ClearVu. Since then, it has expanded its product line and received regulatory approvals, including CE Mark approval for its entire product line in 2009. Cannuflow holds patents in the United States, Japan, China, and Europe for its technologies. The company is led by President and CTO Ted Kucklick. Cannuflow sells its products worldwide to arthroscopic surgeons and has a Scientific Advisory Board. It exhibits at major orthopedic conferences such as the AAOS Annual Meeting and the San Diego Shoulder Arthroscopy Conference.
History
Cannuflow's history begins with Bob Bruce, one of the original orthopedic physician assistants, who developed the "Bravo-8" inflow/outflow cannula. Bob Bruce served as a Special Forces battle medic in the U.S. Army, including a tour in Vietnam in 1966–1967 with the 5th Special Forces Group and as Senior Medical NCO with Bravo Company 1st Battalion 503d Airborne Infantry, 173d Airborne Brigade. He was awarded the Bronze Star for Valor, the Combat Medical Badge, the Parachute Badge, the Vietnam Campaign Medal with three battle stars, and the Vietnamese Cross of Gallantry with Bronze Palm. After his Vietnam tour, he served with the 82d Airborne Division. Following his military service, he graduated from one of the first Physicians Assistants programs in 1978 and worked in the emerging field of Sports Medicine. During the era of arthroscopy "BC" (before cameras), when surgeons looked into the joint through an optical eyepiece, Bob Bruce conceived the idea for the first flexible cannula to replace rigid metal cannulas, which would clog and cause poor visibility. This concept became the "Bravo-8" inflow/outflow cannula, which later evolved into Cannuflow's first product, ClearVu. The company was launched on April 24, 2003, with the introduction of the ClearVu product. On September 29, 2004, Cannuflow launched the DryVu anti-fogging fluid shield. On December 4, 2004, the TwoVu product was launched. In 2006, the company introduced breakthrough anti-extravasation fluid management devices on November 16, and released a new and improved website on November 30. In 2007, Cannuflow announced the availability of a new cannulated obturator for the EntreVu EX on April 4, and exhibited at the 24th Annual Esch San Diego Shoulder Arthroscopy Conference on June 11. In 2008, Cannuflow received three patents for its TwoVu and TwoVu EX technologies on December 2. In 2009, the company received CE Mark approval for its entire product line on January 5, and announced it would exhibit at the AAOS 2009 Annual Meeting the same day. On July 21, 2009, a MedCenterOne video interview with Ted Kucklick, Cannuflow's President & CTO, was released. In 2013, Cannuflow was issued patents in Japan, China, and Europe for its Extravastat technology on February 2. On January 4, 2017, a Private2IPO video interview with Ted Kucklick was released. The company continues to operate from Stevens Point, Wisconsin, and sells its products worldwide.
Company launch and introduction of ClearVu product
DryVu product launch
TwoVu product launch
Introduction of breakthrough anti-extravasation fluid management devices
Release of new and improved website
Announcement of new cannulated obturator for EntreVu EX
Exhibited at 24th Annual Esch San Diego Shoulder Arthroscopy Conference
Received three patents for TwoVu and TwoVu EX technologies
Received CE Mark approval for entire product line
Announced exhibition at AAOS 2009 Annual Meeting
Products and positioning
Cannuflow positions itself as an industry leader in arthroscopy fluid management devices, delivering superior performance, greater safety, and unique technology to arthroscopists worldwide.
ClearVu
Progressively flexible inflow-outflow cannula for 3-portal knee arthroscopy. Constructed of flexible plastic, it flexes to follow the inner contours of the knee, with a safer, softer fenestrated distal tip that never clogs.
TwoVu
Outflow scope sheath that enables surgeon to move from 3-portal to 2-portal knee arthroscopy. Also available for shoulder and hip arthroscopy.
TwoVu ST
Outflow scope sheath variant.
EntreVu EX
Combination outflow and anti-extravasation instrument cannula for shoulder and hip arthroscopy.
TwoVu EX
Outflow scope sheath with anti-extravasation features.
SportPort
Easy-to-use flexible elastomer port for shoulder and hip arthroscopy.
Talarus
Product in Cannuflow's portfolio.
ExtravaStopper
Anti-extravasation device.
DryVu
Anti-fogging fluid shield.
Cannulated Obturator
Accessory for use with EntreVu EX.
SQUID Suction Adapter
Suction adapter.
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