• ablation
  • LTW's patented technology combines laser assisted tissue welding with human serum albumin as the solder, which together quickly stops bleeding and fluid leaks without using mechanical compression, sutures, haemostatic clotting factors (platelets/thrombin/fibrin), or thermal ablation (diathermy/radiofrequency ablation),all of which damage surrounding tissues. (wikipedia.org)
  • Radiofrequency ablation (RFA) is a medical procedure in which part of the electrical conduction system of the heart, tumor or other dysfunctional tissue is ablated using the heat generated from medium frequency alternating current (in the range of 350-500 kHz). (wikipedia.org)
  • In some conditions, especially forms of intra-nodal re-entry (the most common type of SVT), also called atrioventricular nodal reentrant tachycardia or AVNRT, ablation can also be accomplished by cryoablation (tissue freezing using a coolant which flows through the catheter) which avoids the risk of complete heart block - a potential complication of radiofrequency ablation in this condition. (wikipedia.org)
  • Microwave ablation, where tissue is ablated by the microwave energy "cooking" the adjacent tissue, and ultrasonic ablation, creating a heating effect by mechanical vibration, or laser ablation have also been developed but are not in widespread use. (wikipedia.org)
  • Vascular
  • Hemostasis is maintained in the body via three mechanisms: Vascular spasm (Vasoconstriction) - Vasoconstriction is produced by vascular smooth muscle cells, and is the blood vessel's first response to injury. (wikipedia.org)
  • Thus, if vascular and nervous anatomy is respected, the skin, sucutaneous tissue and galea aponeurotica can be lifted off the skull with minimal bleeding, nerve damage, or chance of necrosis. (wikipedia.org)
  • résumé Lamb KM, Pitcher HT, Cavarocchi NC, Hirose H. Vascular site hemostasis in percutaneous extracorporeal membrane oxygenation therapy. (wikipedia.org)
  • proliferation
  • While it is abundant in extracellular matrices, hyaluronan also contributes to tissue hydrodynamics, movement and proliferation of cells, and participates in a number of cell surface receptor interactions, notably those including its primary receptors, CD44 and RHAMM. (wikipedia.org)
  • glue
  • By using this tissue glue at the end of a facelift procedure there is no need for drains, which are typically placed for the first 24 hours when using other methods. (prweb.com)
  • It is made up of fibrinogen (lyophilised pooled human concentrate) and thrombin (bovine, which is reconstituted with calcium chloride) that are applied to the tissue sites to glue them together. (wikipedia.org)
  • wound
  • The invention preferably includes the steps of acquiring an aliquot of a patient's blood, i.e., autologous blood, removing a negatively charged anti-coagulating agent, preferably heparin, from the blood, and preferably initiating the blood's natural clotting cascades and transporting the thus treated blood to the site of the wound where the clotting cascade will be completed producing a clot at the wound site that will create a condition of hemostasis. (google.com.au)
  • These agents permit rapid hemostasis, better visualization of the surgical area, shorter operative times, decreased requirement for transfusions, decreased wound healing time and overall improvement in patient recovery time. (wikipedia.org)
  • The basic needs to achieve wound healing. (wikipedia.org)
  • wounds
  • The present invention provides improved methods of creating hemostasis or control of bleeding at the site of wounds, particularly wounds created in arteries during procedures employing percutaneous access. (google.com.au)
  • membrane
  • A self-sealing hemostasis valve having a first membrane with an opening offset from the center and a second membrane with an opening offset from the center in a direction opposite of the offset in the first membrane. (google.com)
  • Access through the two elastomeric membranes without tearing is available at the intersection of the openings in the membrane assembly when the two membranes are deformed by an instrument being inserted through the hemostasis valve. (google.com)
  • 2. The hemostasis valve of claim 1 wherein said first membrane and said second membrane are joined at their outer edges. (google.com)
  • 3. The hemostasis valve of claim 1, wherein said aperture in said first membrane is offset from a center of said first membrane. (google.com)
  • 4. The hemostasis valve of claim 3, wherein said second membrane is substantially a mirror image of said first membrane. (google.com)
  • 7. The hemostasis valve of claim 5, wherein said housing includes a cap member and a main body member, said first generally annularly extending membrane engagement member forming part of said cap member, and said second generally annularly extending membrane engagement member forming part of said main body member. (google.com)
  • Furthermore, iodixanol release from the test gels was assessed using spectrophotometry, and tissue compatibility was compared between test and control hydrogels using the chick chorioallantoic membrane (CAM) assay. (frontiersin.org)
  • adhesives
  • He also previously served as the director of the hospital's Tissue Adhesive Center, which promoted and advanced the use of adhesives in surgery. (wikipedia.org)
  • For his contributions in the "development of tissue adhesives for surgical use", Spotnitz was inducted into the 2004 class of the College of Fellows of the American Institute for Medical and Biological Engineering. (wikipedia.org)
  • electrodes
  • In one implementation, an electrode carrier including bipolar electrodes is applied to the tissue, and RF energy transmitted through the bipolar electrodes to ablate the tissue. (google.co.uk)
  • a controller to control the delivery of radio frequency energy from the source of radio frequency energy to the one or more bipolar electrodes such that tissue can be ablated to a desired depth of destruction to achieve substantial hemostasis. (google.co.uk)
  • In bipolar surgery, the current only goes through the tissue between the two electrodes of the instrument. (prezi.com)
  • surgery
  • As the boundaries of laparoscopic surgery prpranolol, there will be more possibilities for, and develop- ments in, tissue propranollol. (thesiri.ru)
  • Laser scalpel Laser surgery Soft-tissue laser surgery Lewis, Ph.D., Ricki (January 1995). (wikipedia.org)
  • blood
  • A styptic (also spelled stiptic) is a specific type of antihemorrhagic agent that works by contracting tissue to seal injured blood vessels. (wikipedia.org)
  • Styptics cause hemostasis by contracting blood vessels. (wikipedia.org)
  • A piece of the formed blood clot often breaks off and travels (embolizes) up through the internal carotid artery into the brain, where it blocks circulation, and can cause death of the brain tissue, a condition referred to as ischemic stroke. (wikipedia.org)
  • bone
  • In the United States, the use of lasers on the gums was first approved by the Food and Drug Administration in the early 1990s, and use on hard tissue like teeth or the bone of the mandible gained approval in 1996. (wikipedia.org)
  • Severe gum disease which may affect the supporting tissues and bone structures of teeth. (wikipedia.org)
  • radiofrequency
  • Radiofrequency energy is used in heart tissue or normal parts to destroy abnormal electrical pathways that are contributing to a cardiac arrhythmia. (wikipedia.org)
  • biopsies
  • It is done using a colposcope, which provides an enlarged view of the areas, allowing the colposcopist to visually distinguish normal from abnormal appearing tissue and take directed biopsies for further pathological examination. (wikipedia.org)
  • abnormal
  • A colposcope is used to identify visible clues suggestive of abnormal tissue. (wikipedia.org)
  • The practitioner first "maps" an area of the heart to locate the abnormal electrical activity (electrophysiology study) before the responsible tissue is eliminated. (wikipedia.org)
  • closure
  • Patients who are experiencing a miscarriage or who have fetuses diagnosed with severe congenital anomalies may prefer an intact procedure to allow for viewing of the remains, grieving, and achieving closure. (wikipedia.org)
  • defects
  • The keloids temporarily collapse and tissue defects are formed. (google.com)
  • The options range from simple solutions for small skin defects to complicated reconstructions requiring multi-tissue reconstructions. (wikipedia.org)
  • protein
  • Such hemostasis is achieved by causing protein molecules within aspirated tissue to coagulate in response to the high-voltage RF signals being supplied across the reciprocating cannulas. (google.co.uk)
  • In addition, proteases recruited from remote sources like nearby tissues are ignored by these DNA based arrays, reiterating the need for protein based methods to confirm the presence and activity of functional enzymes when transcriptome analysis is performed. (wikipedia.org)
  • create
  • By allowing the tissue to create a closer connection, the risk for complications, such as hematoma and seroma, are reduced. (prweb.com)
  • coagulate
  • A custom DL series laser and handheld optics is being developed by Visotek and tested by LTW so the surgeon can efficiently coagulate an albumin-ICG solder together with a solid transparent albumin scaffold and provide quick and accurate hemostasis and biliary sealing. (wikipedia.org)
  • electrosurgery
  • Because of the cauterization of tissue there will be little bleeding following soft tissue procedures, and some of the risks of alternative electrosurgery procedures are avoided. (wikipedia.org)
  • sequence
  • The population inversion in the laser is achieved by the following sequence: electron impact excites vibrational motion of the nitrogen. (wikipedia.org)
  • destroy
  • Subsequent removal therefore, does not destroy granulation tissue, making dressing change virtually painless. (wikipedia.org)
  • further
  • 9. The system of claim 8 , where the hemostasis device further comprises: a thermally insulated layer for protecting a user of the hemostasis device from the electrode carrier. (google.co.uk)
  • damage
  • Pain can be unpleasant sensory or emotional sensations, which may or may not be associated with identifiable tissue damage. (endocrinologyadvisor.com)
  • Two important advantages of radio frequency current (over previously used low frequency AC or pulses of DC) are that it does not directly stimulate nerves or heart muscle and therefore can often be used without the need for general anesthetic, and that it is very specific for treating the desired tissue without significant collateral damage. (wikipedia.org)
  • control
  • By drawing attention to how proteolysis serves as an additional irreversible mechanism by which cells could achieve control over biological processes, they outlined the necessity of studying proteases for their functional relevance in processing bioactive molecules. (wikipedia.org)
  • effect
  • During aspiration of tissue, high-voltage RF power signals are supplied to the inner and outer cannulas to effect hemostasis about the reciprocating aspiration aperture. (google.co.uk)
  • severe
  • In medical terminology this new formation of tissue is referred to as cicatricial hypertrophy or as keloid in severe cases. (google.com)
  • method
  • A method and system for achieving hemostasis (the stoppage of bleeding) is described. (google.co.uk)
  • Consequently this method of treatment can thus always only achieve short-term improvements but no final healing. (google.com)
  • A method currently in phase III trials uses the low-level heat (hyperthermia) created by the RFA probe to trigger release of concentrated chemotherapeutic drugs from heat-sensitive liposomes in the margins around the ablated tissue as a treatment for Hepatocellular carcinoma (HCC). (wikipedia.org)
  • laser
  • The soft tissue is cut, on contact, by the hot charred glass tip and not by the laser beam. (wikipedia.org)
  • The Nd:YAG laser wavelength are partially absorbed by pigment in the tissue such as hemoglobin and melanin. (wikipedia.org)
  • The CO2 laser remains the best surgical laser for the soft tissue where both cutting and hemostasis is achieved photo-thermally (radiantly). (wikipedia.org)
  • Er:YAG laser Carbon dioxide laser Er,Cr:YSGG laser Erbium lasers are both hard and soft tissue capable. (wikipedia.org)
  • The new CO2 laser operating at 9,300 nm features strong absorption in both soft and hard tissue and is the newest alternative to erbium lasers. (wikipedia.org)
  • The process achieved 250 welded spots per minute with 6 kW of laser power. (wikipedia.org)
  • In its newest endeavor, Visotek has partnered with biotherapeutics company, Laser Tissue Welding, Inc. (LTW), to bring new lifesaving surgical techniques to patients in the operating suite and on the battlefield. (wikipedia.org)
  • ease
  • They vary based on their mechanism of action, composition, ease of application, adherence to tissue, immunogenicity and cost. (wikipedia.org)
  • human
  • This session will teach you how to suture and allow you to practice stitches in a simulation of human tissue. (npwh.org)
  • PMMA has a good degree of compatibility with human tissue, much more so than glass. (wikipedia.org)
  • Definition
  • The second definition applies specifically to the full substrate repertoire of a certain protease in a cell, tissue, or organism. (wikipedia.org)
  • normal
  • Both of these tools allow comparison of expression patterns between normal and diseased samples and tissues. (wikipedia.org)