1 RF Generators and RF Matches Used in Induction heating for sealing Medical Clean Room and Food/Freezer Bags
2 Sebra Portable Tube Sealing Induction units Repaired and Serviced, Colpitt RF Sealers Serviced and Repaired
3 Aseptic RF In System Tube Sealing Units Repaired and Serviced
3 RF Generators and Matches for Sterilization Repaired and Serviced
4 We also test all our sealer repairs to make sure they seal properly and offer Calibration checks on all sealers
5 All bag and tube seals are tested under high vacuum for leaks
Medical Use of Radiofrequency (RF) Energy
RF bar sealing systems are widely employed for welding various disposable medical products, ranging from IV bags to aircasts.
Other uses include presses used for mattresses, IV products, bags, examination tables, oncology, respiratory products, urology and blood collection products as well as medical pads, cushions, covers, and inflatables.
Radiofrequency (RF) is a form of electrical energy in the frequency range of 300 kilohertz (kHz) to 1 megahertz (MHz). RF has been used in medical applications for decades for such uses as sealing IV fluid bags. But it is the way RF is absorbed in the body that has made it one of today's most advanced surgical techniques, and the reason it is replacing lasers in everything from prostate cancer therapy to cardiovascular procedures.
Unlike other forms of electromagnetic frequencies that cause a "surface effect," wherein the skin feels the heat application, RF energy can penetrate the body and be absorbed in deep body organs without any heat sensation, making it virtually painless and potentially speeding patient recovery. In application, RF medical devices transmit low frequency radio waves through electrodes, which cause ionic agitation, or friction, increasing the temperature of the tissue. Since a sharp boundary is created between the affected tissue and that surrounding it, surgeons can operate with a high level of precision and control, without much sacrifice to the adjacent normal tissue. The lower operating temperatures of RF, as compared to traditional electrosurgical or laser surgery tools, enables surgeons to remove, shrink or sculpt soft tissue while simultaneously sealing blood vessels. RF works particularly well on connective tissue, which is primarily comprised of collagen and shrinks when contacted by heat.
Today's Medical
Vision Correction: The NearVisionSM CK® (Conductive Keratoplasty®) procedure utilizes the controlled release of radiofrequency energy, instead of a laser or scalpel, to reshape the cornea and correct vision in people over age 40. The minimally invasive NearVision CK procedure takes less than three minutes and is done in-office with only topical (eye drop) anesthesia. Using a tiny probe as thin as a human hair, controlled RF energy is applied in a circular pattern and causes constriction, almost like tightening a belt, which gently increases the curvature of the eye to improve near vision for Baby Boomers who want to safely see young again. There is no cutting and no removal of tissue
.RF is also used for medical proceedures below
- Liver Cancer: As an alternative to major open surgery, physicians can treat liver tumors using alternating current radiofrequency (RFA) to heat tumors to over 100 degrees Celsius, thereby destroying cancer cells.
- Sleep Apnea: Physicians successfully use RF energy to reduce the volume of the tongue, one of the primary contributors to obstructive sleep apnea.
- Snoring: Radiofrequency energy is delivered by a thin probe through the lining of the palate into the deeper tissues, creating a lesion that reduces the volume of soft tissue and elevates the palate with stiffening. This results in minimal
- injury to the outer lining, very little discomfort afterwards and a complete recovery time of two or three days. RF is also used to reduce the size of large tonsils when they contribute to airway blockage and snoring.
- Cosmetic Surgery: RF-based systems, designed for the treatment of skin in dermatology and plastic surgery applications, can tighten and conform skin by thermal restructuring of the dermal collagen matrix.
- Enlarged Prostate: Transurethral needle ablation of the prostate is a procedure used to treat benign prostatic hypertrophy. RF is transmitted through a needle to the tissue at a precise rate for approximately 4 minutes per lesion, thereby
- killing cells and reducing tissue size.
- Rapid Heartbeat Syndrome: Radiofrequency ablation is used to treat some types of rapid heart beating, especially Wolff-Parkinson-White syndrome. A catheter, with an electrode at its tip, transmits RF energy through an accessory
- pathway to the heart muscle, causing cells in a very small area (about 1/5 of an inch) to die. That stops the area from conducting the extra impulses causing the rapid heartbeats.
- Tightening Loose Joints: When applied to loose connective tissue surrounding joints, RF energy tightens the collagen and creates a tighter joint.
- Other procedures using RF include treatment of varicose veins, back pain and incontinence.
Applications for Radio Frequency and Microwave Heating in the Food industry
The unique processing benefits achievable with RF technology have been used in food applications for many years. RF Global Solutions are working with leading food companies to develop novel food processes and products. Examples of such equipment include:
Defrosting
The process advantages include:-
greater yield as a result of reduced drip loss
shorter process time (one hour compared with 48 hours or more)
higher quality
lower bacteriological contamination
Softening
There are number of food ingredients and products which can benefit from softening either as a part of the main process or for recovery of trim or other in-process waste. The ingredients include a range of fats such as shortening for pastry making, cocoa butter and its substitutes.
Baking and post baking
Using RF "post baking’’ product throughput can be increased by up to 30%.
RF assisted baking processes which can operate within ovens operating up to 300oC. The advantages of this combination baking, include:-
reduced baking time,
more compact machines,
a wider choice of product characteristics arising the separate control of the surface and core heating rates,
choice of full baking or part baking for finishing at point of use
novel product shapes and textures
Cooking and blanching
Radio frequency and microwave heating techniques are useful for a range of continuous cooking operations. Their volumetric heating results in improved product quality. The range of materials which can be cooked include meats and reformed meats, pies and pizzas, vegetables and potato products.
Pasteurisation
RF and microwave techniques offers significant opportunities in extending the period between production runs of particular dishes without compromising the shelf life as seen by the customer.
RF Global Solutions also supply conventional steam heated pasteurizers.
Both microwave (MW) and radio frequency (RF) heating (also referred to as dielectric heating) refer to the application of electromagnetic waves to generate heat at regulated frequencies. The frequencies regulated by the U.S. Federal Communications Commission (FCC) for industrial, medical, and scientific purposes are 13.56, 27.12, and 40.68 MHz for RF, and, 915, 2450, 5800, and 24125 MHz for MW applications. Aside from the frequency range and penetration depth, RF and MW heating differ in the nature of the generators and applicators used. Although RF heating is more appropriate for materials of regular shape, large dimensions, and high loss factor, MW heating is better adapted for compact materials with complex shapes and low loss factor.1 Particularly, RF heating provides uniform heating because of its ability to penetrate into the product with uniform field patterns, rather than the complex nonuniform wave patterns found in the MW oven. Continued public concerns about food hygiene issues and demand for conveniently packaged foods with enhanced nutritional quality can require rapid heating alternatives with high penetration into the product. This paper reviews published information on: 1) fundamental principles of RF heating in general; 2) relevant applications and key successes in the food industry; and 3) potential food-related applications that need further investigation.