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Organising Catheters and Guide Wires

Source: Release Date:2010-10-08 129
A DEVICE designed to simplify the delicate and often complicated deployment of catheters and guide wires for interventionalist procedures makes use of a medical elastomer with regulatory pre-compliance and known for its bondability to ABS. Less invasive alternatives to surgery, interventionalist methods such as the placement of stents to open blocked arteries, typically require the insertion of catheters with guide wires into blood vessels and may involve more than one pair of these devices, as in the case of blockages in both main and branch arteries. The Teirstein Edge device, developed by Paul S. Teirstein, MD, incorporates clips for attachment to surgical towels and has a curved underside that enables it to lie on a flat surface or over a patient's leg. The solution allows interventionalists organise catheters and guide wires at a site just prior to insertion of the wires into the catheters, keeping them neatly separated and readily identifiable while allowing precise control of their movement during procedures. Playing a key role in the new Teirstein Edge device is a Medalist elastomer from Teknor Apex Company. Using two-component injection moulding, elastomer specialist Da/Pro Rubber, Inc., produces the Teirstein Edge device for Dr. Teirstein's company, Shepherd Scientific. Da/ Pro moulds Medalist MD-305 elastomer onto six sites in a one-piece ABS base, forming slits for the placement of up to three catheter/ guide wire pairs. The rubber-like traction of the Medalist compound and its elastomeric "give" combine to enable the slits to hold the catheters and wires securely while permitting them to be adjusted or removed without being bent. The intricate design of the inside edges of the slit accommodates devices of different diameters and permits forward and backward movement or, at the bottom of the slits, no movement at all. "Because interventionist practitioners are hypersensitive to the 'feel' of the devices used in their procedures, we went through a number of prototypes, varying the slit geometry and durometer until we arrived at just the right combination," said William D. (Bill) Morrison, plant manager at Da/Pro's facility in Newburyport, MA. "We considered several other thermoplastic elastomers but chose the Medalist compound because it chemically bonds with the ABS substrate and was already compliant with the relevant regulations." The Medalist programme for medical manufacturers now includes 28 standard high-purity elastomer compounds along with a comprehensive body of test data and resources for designers and processors. Compounds are available with Shore A hardness from 5 to 87 and include clear, translucent and opaque formulations. (the end) Source: Shepherd Scientific
Disinfecting Cap for IV Connectors A DISINFECTING cap developed for the male luer, which has been previously overlooked as a route of microbial colonisation, has been granted 510(k) clearance by the U.S. Food and Drug Administration for release in the market. DualCap from Catheter Connections, Inc. is the only device that nests two disinfecting caps together-for both intravenous (IV) access points, the needleless injection site (NIS) and the male luer at the end of the IV tubing. The Salt Lake, Utah-based manufacturer of vascular access and infection control products said its device is the also the first disinfecting cap specifically for the male luer. "We believe that the ability to safely disinfect and protect exposed IV connectors is significant for the medical community," says Vicki Farrar, CEO of Catheter Connections. "Now there is a cost-effective and easy-to-use technology that gives healthcare facilities a powerful tool in the fight against these life-threatening infections." Patients contract catheter-related bloodstream infections (CRBSIs) when microbes enter the bloodstream in one of two ways. The less prevalent route is from the skiNIke Dunk SB Low
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