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Go with the flow in arthroscopic surgery

Clear arthroscopic access cannula body with Covestro plastic

Go with the flow

Patients undergoing hip or shoulder surgery may choose less invasive arthroscopic surgery, if their condition permits. However, soft tissue fluid retention is a common problem during arthroscopic surgery.

The Q-FLO™ features a clear arthroscopic access cannula body and utilizes Makrolon® Rx1452 medical grade polycarbonate from Covestro.
Cannuflow’s EntreVu® EX features a clear arthroscopic access cannula body and utilizes Makrolon® Rx1452 medical grade polycarbonate from Covestro.

Task

During arthroscopic surgery, medical professionals seek devices to wick away irrigation fluid that could cause painful swelling and post-surgical complications. To bring such a device to the surgeon’s table, Cannuflow sought a plastic material for its EntreVu® EX product.

Challenge

The EntreVu® EX is a clear arthroscopic access cannula body for effective visualization of sutures and surgical knots. The selected material needed to provide glass-like transparency and excellent moldability while also meeting biocompatibility requirements.

Solution

Cannuflow selected Makrolon® Rx1452 polycarbonate from Covestro for its EntreVu® EX, which helps to wick away irrigation fluid during surgery. Cannuflow’s decision was based on the material’s clarity, which helps the surgeon easily see surgical knots, as well as its moldability and biocompatibility. This material meets requirements of the FDA-modified ISO 10933, Part 1, tests for biocompatibility in select tints and colors and is USP Class VI compliant.

Case Profile

Supplier

Covestro LLC

Industry

Medical

Application

Device for arthroscopy

Makrolon® polycarbonate - the state of the art material for a broad range of design applications that possesses phenomenal properies

Makrolon® Rx1452 polycarbonate is biocompatible and designed to meet the needs of medical devices.

The material offers ease of molding, which allowed low-profile wall sections and long core pulls, making it possible to produce a two-layer cannula with significant added functionality.

Makrolon® Rx1452 polycarbonate provides increased design flexibility over other plastic options for complicated medical products with difficult-to-fill molds and parts with shallow drafts.

This grade of Makrolon® polycarbonate has a low viscosity, meaning that the substance is thin and flows easily when melted.

The selected material also offers additional important properties including high strength and toughness.

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