MEDICAL APPLICATIONS For Precision Induction Heating
18Pages

Medical Applications with Precision Induction Heating

CONTENTS INTRODUCTION WHAT IS INDUCTION HEATING? ADVANTAGES OF INDUCTION HEATING APPLICATIONS ANNEALING STEEL TUBES IN AN INERT ATMOSPHERE BONDING A PLASTIC HANDLE TO A SURGICAL KNIFE BRAZING A HEAT-SENSING PROBE BRAZING STEEL DENTAL TOOLS BRAZING STEEL ORTHODONTIC PARTS HARDENING SURGICAL BLADES HEATING A CATHETER TIPPING DIE MOLDING A TEFLON CATHETER TIP HEATING NANOPARTICLES FOR CANCER RESEARCH PLASTIC REFLOW WITH CATHETER TUBING THE APPLICATIONS LAB FREE FEASIBILITY TESTING LAB TESTING DATA SUBMISSION SHEET Medical Applications with Precision Induction Heating ISO Emblem Using Induction

» What is Induction Heating Induction heating is a method of providing fast, consistent heat for manufacturing and research applications which involve bonding or changing the properties of metals or other electrically conductive materials. The process relies on electrical currents within the material to produce heat. Although the basic principles of induction are well known, modern advances in solid state technology have made induction heating a remarkably simple, cost-effective heating method for applications which involve joining, treating, heating and materials testing. The basic...

» Advantages of Induction Heating Improved Productivity Improved Energy Efficiency • Meets tight production tolerances with precise localized heat to small areas creating pinpoint accuracy • Increased production rates with faster heating cycles Improved Design; Integration • Reduce defect rates with repeatable, reliable heat Improved Features • Maintains metallurgical characteristics of the individual metals • Eliminate variability from operator-to-operator, shift-to-shift • Use less energy-immediate heating • Non-contact heating • Generate heat only where needed; no wasted energy •...

» Medical Applications • Annealing steel tubes • Catheter tipping - Molding - Plastic reflow Catheter tipping/Forming • Brazing miniature medical parts • Soldering surgical tools • Nitinol shape setting • Curing powder coating • Metal to plastic insertion • Annealing tubes and surgical instruments Metal to plastic insertion • Hardening surgical instruments • Heating catheter tipping dies • Nanoparticle research Small tool brazing Powder coating Soldering surgical tools

» Annealing Steel Tubes in an Inert Atmosphere To heat steel tubes to 2000ºF (1093 ºC) in an inert atmosphere. 0.1” (2.54mm) diameter stainless steel tube EQUIPMENT • Ambrell 1.2 kW induction heating system, equipped with a remote workhead containing one 1.0μF capacitor • An induction heating coil designed and developed specifically for this application PROCESS A two turn concentrator coil is used to heat the stainless steel tube. The annealing process takes place in an inert atmosphere to prevent oxidation. The stainless steel tube is placed in the inert atmosphere and heats to 2000ºF...

» Bonding a Plastic Handle to a Surgical Knife Bonding handle of a stainless steel surgical knife into a plastic handle. Plastic tool handle, 0.125” (3.18mm) diameter steel knife EQUIPMENT • Ambrell 1.2 kW induction heating system, equipped with a remote workhead containing one 0.66μF capacitor • An induction heating coil designed and developed specifically for this application PROCESS A four turn split helical coil is used for this application. Power is applied to the steel knife for 2.0 seconds to reach 450ºF (232 ºC). The steel knife is then inserted into the plastic handle to create a...

» Brazing a Heat-Sensing Probe OBJECTIVE To heat a coil and a wire assembly to 1300°F (704°C) within 60 seconds for brazing. Platinum coil, steel wire, braze paste 1300°F (704°C) 307 kHz EQUIPMENT • PROCESS Ambrell 1 kW induction heating system, remote heat station containing one 1.2 microfarad capacitor, a specially-designed induction coil, an optical pyrometer, stainless steel susceptor, and zirconia felt to house the susceptor. A C-shaped steel susceptor is used to ensure even heating and or ease of loading and unloading the samples. RF power from the power supply heats the susceptor to...

» Brazing Steel Dental Tools OBJECTIVE MATERIAL TEMPERATURE FREQUENCY To heat a steel tip and shank assembly to 1300°F (704°C) within three seconds for brazing with induction heating instead of torch brazing. 0.1” (2.54mm) diameter steel tip and shank, 0.07” (1.78mm) diameter braze ring 1300°F(704°C) 278 kHz EQUIPMENT • Ambrell 1 kW induction heating system, remote workhead containing one 1.2 microfarad capacitor PROCESS A two turn helical coil is used to braze the dental parts. The braze ring is placed at the joint area of the steel tip and shank. Black flux is applied to the joint area....

» Brazing Steel Orthodontic Parts OBJECTIVE MATERIAL TEMPERATURE FREQUENCY To heat a batch of orthodontic parts to 1300°F (704°C) within one second in an inert atmosphere for brazing. Small stainless steel orthodontic parts, silver braze alloy, no flux, 3 1/ 8” (79.3mm) graphite susceptor disk with 1” (25.4) center hole and bell jar made of pyrex or quartz 1300°F(704°C) 165 kHz EQUIPMENT • Ambrell 3 kW induction heating system and 0.5 microfarad workhead PROCESS A four turn helical coil is used to heat parts. Brazing paste is applied to orthodontic parts with a syringe. The parts are placed...

» Hardening Surgical Blades OBJECTIVE MATERIAL TEMPERATURE FREQUENCY EQUIPMENT PROCESS To quickly heat a steel surgical blade to 2000°F (1093°C) within two seconds so as to harden the blade edge. Stainless steel surgical blades, temperature sensing paint 2000°F(1093°C) 339 kHz • Ambrell 3 kW induction heating system, remote workhead containing one 1.0 microfarad capacitor A four turn helical coil is used to harden the blades. The induction coil is designed to provide uniform heat to the entire length of the blade surface. RF power is applied to heat the entire assembly. The blade reaches...