Medical Tubing and Extrusion Archives - Page 3 of 3

Qosina touts prototyping tubing

Qosina is touting tubing for prototyping and large-seal production requirements.

The tubing is medical-grade, high quality and packaged in small or large coils. They are available in a diverse range of materials, including PVC, DEHP-free PVC, silicone, FEP and HDPE.

Qosina’s custom tubing comes in multilayer, universal bubble, single lumen and dispensing tubing types. The company says the small coil lengths are perfect for prototyping and it can provide free samples for in-house testing and evaluation.

Qosina’s custom tubing is in-stock and available in exact specifications with cut-to-length configurations with customer durometers, sizes, colors and materials.

Boston Scientific launches DirectSense technology

Boston Sci’s DirectSense technology provides data on the impedance around the catheter tip to measure the ability of the tissue to respond to radiofrequency energy before physicians deliver therapy. [Image courtesy of Boston Scientific]Boston Scientific (NYSE:BSX) announced today that it launched its DirectSense for monitoring the effect of radiofrequency (RF) energy during cardiac ablation procedures.

Marlborough, Mass.-based Boston Scientific’s DirectSense is available on the Rhythmia HDx mapping system that won FDA approval in April. Rhythmia HDx monitors changes in local impedance — electrical resistance — around the tip of the IntellaNav MiFi open-irrigated ablation catheter.

Get the full story on our sister site MassDevice.

What is an echogenic catheter?

[Image from the Journal of Ultrasound in Medicine]Echogenic catheters are used for improving visibility in a number of ultrasound-guided catheterizations.

The catheters have been used in many applications. For example, echogenic catheter-over-needle systems can be used for continuous nerve block. Echogenic catheters have also been used for ultrasound-guided embryo transfer in in vitro fertilization programs.

In one study, echogenic catheters facilitated catheter identification under ultrasound in the duration of the embryo transfer procedure, according to a 2006 study. In another 2015 study, an echogenic catheter was used as a nerve block for a paravertebral anesthesia block. The results demonstrated superior ultrasound visibility of the entire length of the test catheter compared to a control.

Echogenic catheters are designed to maximize visibility. Some catheters feature a touhy needle that includes etched imprints on the needle tip that reflects ultra…

Acutus Medical, Biotronik ink deal

Acutus Medical and Biotronik have announced that they will collaborate on electrophysiology, mapping, ablation and accessory products across certain markets.

Under the agreement, Acutus expects to market a range of Biotronik EP ablation catheters and diagnostic/accessory products under a private label to most international markets. The companies believe they can create a secure digital network across cardiac rhythm management and electrophysiology mapping and ablation devices.

Get the full story on our sister site MassDevice.

MIT researchers may have invented a safer way of splitting ventilators

[Image courtesy of MIT]MIT and Brigham and Women’s Hospital researchers say they have a way of splitting ventilators which could address many of the safety concerns — potentially boosting the supply of ventilators amid the COVID-19 pandemic.

They have demonstrated their concept’s effectiveness in the lab — but they still caution it should be used only as a last resort during an emergency when a patient’s life is at stake.

Ventilators should only be shared as a last resort. One problem: Patients sharing the ventilator must all have the same lung capacity. If one patient’s lung function improves or another’s deteriorates, one patient may receive the right amount of air but other may be out of luck.

Basically the MIT team incorporated flow valves, one for each patient’s branch, that allow them to control the amount of air that each receives. “These flow valves allow you to personalize the flow to each patient based on their needs. They also ensure that if o…

How silicone tubing is used in designing medical devices

[Image from Trelleborg]Dan Sanchez, Product Manager, Trelleborg Healthcare & Medical

The global medical tubing segment continues to rise at a significant rate and is expected to reach $9.4 billion by 2022, according to MarketsandMarkets Research. Within this forecast, silicone is identified, in terms of volume, as the largest and fastest-growing material within the global medical tubing segment.

Specifying silicone tubing can be complex, requiring a medical device designer to consider mechanical properties such as size and hardness, visible features such as transparency or the need for radiopaque stripes and advanced design aspects such as kink resistance.

Additionally, when selecting silicone tubing that may be implanted within a patient or entered into the body, material purity, chemical and biocompatibility, size and durability need consideration, as they play key roles in product performance.

When developing successful solutions to medic…

Ra Medical threatened with stock exchange delisting

Ra Medical Systems (NYSE:RMED) announced today that it received notice that is is no longer in compliance with the New York Stock Exchange’s listing standards.

The Carlsbad, Calif.-based company learned that it is not complying with the NYSE continued listing standard that requires companies to maintain an average closing share price of at least $1 over a consecutive 30-trading-day period.

The company develops the Dabra minimally-invasive excimer laser system. The Dabra system is designed to destroy arteriosclerotic blockages through the use of radiation ablation. The system won FDA 510(k) clearance in May 2017 for the treatment of occlusive peripheral vascular disease after the artherectomy catheter system received CE Mark approval in October 2016.

Get the full story on our sister site MassDevice.

What is a microcatheter?

Boston Scientific’s Mamba Microcatheter (t0p), Teleflex’s SuperCross Microcatheter (left) and Terumo Europe’s Progreat Microcatheter (right) [Images from Boston Scientific, Teleflex and Terumo Europe]A microcatheter is a small diameter catheter that is used in minimally invasive procedures for delivering devices. Its small build makes it ideal for navigating complex vasculature within the human body.

Microcatheters are small 0.70-1.30mm diameter catheters that are used for guidewire support, exchanges, to access distal anatomy, cross lesions, deliver therapeutic embolic, inject contrast media and perform other procedures in complex endovascular procedures.

Steerable microcatheters have been used in cardiac applications such as balloon delivery to improve vessel flow in elderly patients, according to a study published in January 2019 in the Journal of Geriatric Cardiology. They can be used to place and exchange guidewires and other intervention…

GI Supply launches device to reduce necrotic tissue, pancreatic blood fluids

[Image from GI Supply]GI Supply recently launched its Piranha Aspiration Catheter for necrotic tissue suction.

The device is designed for better management of necrotizing pancreatitis for endoscopic transmural necrosectomy by improving the suction of necrotic tissue and pancreatic blood fluids.

Piranha LC suctions necrotic tissue and pancreatic blood fluids in the catheter to leave a clear visualization for a gastroenterologist. The closed system design avoids the need for scope suction and its ease of use allows for quick and intuitive procedures. It features a design that uses wall suction and a Teflon coated catheter to maximize necrotic tissue and pancreatic blood fluid removal.

“The Piranha LC is a great tool that gastroenterologists can use to clear areas of necrosis and infection and can also be used to clear blood and blood clots. The device is a closed system which will help reduce risks for the physicians and staff,” inventor of the…

Graham Engineering adds extrusion clamp

Extruder with AutoGrip clamp in foreground (Image from Graham Engineering)

Graham Engineering announced today that it has added a new extrusion clamp with electro-mechanical actuation to its American Kuhne product line.

The AutoGrip power clamp is safer and simpler to operate than manual devices and provides more repeatable clamping forces, according to York, Pa.-based Graham Engineering. It is designed to reduce downtime in installations with frequent screw, breaker plate, or tooling changes as well as to reduce the risk of injury or burns involved in manually releasing and tightening clamps during changeovers.

The AutoGrip clamp is remotely controlled by a two-hand pushbutton controller for user safety and convenience. The drive motor and gear box are mounted above the clamp, protecting them from melt residue and making them easy to access for maintenance.

“We have engineered the AutoGrip system with simplicity and safety in mind,” said Michael Duff, V…

FDA labels Applied Medical catheter recall as Class I

The FDA announced yesterday that the Applied Medical recall of multiple kinds of its catheters is designated as Class I, the most serious type of recall.

The Python embolectomy catheters, Bard embolectomy catheters and the OTW Latis cleaning catheters were the types recalled by Applied Medical. A total of 19,400 devices were recalled in the U.S., having been manufactured between July 23, 2015, and Nov. 8, 2018, and distributed between Aug. 25, 2015, and March 1, 2019. The company initiated the recall on Oct. 24, 2019, according to an FDA release.

Get the full story at our sister site, MassDevice.

FDA clears Transit Scientific peripheral vasculature microcatheter

[Image from Transit Scientific]Transit Scientific today said it won FDA clearance for its XO Cross Microvatheter platform.

XO Cross Microcatheter is designed for guidewire support, exchange and contrast media injection in the peripheral vasculature.

Microcatheters are small 0.70-1.30mm diameter catheters that are used for guidewire support, exchanges, to access distal anatomy, cross lesions, deliver therapeutic embolic, inject contrast media and perform other procedures in complex endovascular procedures.

“We use multiple microcatheters every day,” interventional cardiologist George Adams said in a news release. “Improving access to distal vasculature is important. We are performing more radial procedures too and need long, responsive, and fatigue-resistant microcatheter technology.”

Transit Scientific’s XO Cross Microcatheter platform delivers new levels of pushability, traceability, flexibility and torque response t…