364 results about "Varicose veins" patented technology

The invention is a method of using ultrasound waves that are focused at a specific location in a medium to cause localized production of bubbles at that location and to control the production, and the cavitational and heating effects that take place there. According to the method of the invention, the production and control is accomplished by selecting the range of parameters of multiple transducers that are focused at the location such that they produce by interference specific waveforms at the focal point, which are not produced at other locations. Preferably the region within the focal zone of all the transducers in which the specific waveform develops at significant intensities, is typically very small. The invention is also a system for carrying out the method. The method and system of the invention can be used to perform a variety of therapeutic procedures. Typical of such procedures is occlusion of varicose veins.

A self-powered compression device for use in promoting circulation, said device embodying a plurality of inflatable sleeves arranged sequentially for applying compression to a body or limb and which further comprises a pump, a piping system and a bandage or boot to enclose the device in its entirety. A method for using self-generated pressure in promoting circulation in conditions including but not limited to, lymphatic and traumatic edemas, venous disorders, limb ulcers, varicose veins, muscle fatigue, sports medicine, cellulite treatment, diabetic feet, feet massage for recreation or cosmetic enhancements.

A medical instrument that utilizes electrical energy delivery between first and second opposing polarity electrodes in an interior bore of a working end to cause vaporization of an inflowing fluid media. The vaporization and expansion of the fluid media creates pressure gradients in the working end that causes heated vapor to propagate distally from the working end. The propagation or jetting of the vapor media is used to controllably cause thermal effects in endoluminal environments. The instrument and method can be used to shrink and occlude blood vessels in a treatment for varicose veins.

The method of treating varicose veins and other vascular diseases provides sclerosant fluid through a catheter into the body vessel to be treated. The catheter has a lumen and a plurality of sidewall exits. The sclerosant fluid is provided under sufficient pressure so that it comes out of each exit as a jet of fluid with sufficient velocity to impinge on the vessel wall substantially orthogonal to the wall and thus minimize dilution of the sclerosant fluid and optimize coverage. A movable sheath on the catheter permits selecting a portion of the exits to be uncovered and thus create an infusion zone for the jets of sclerosant fluid which approximately match a desired treatment zone.

An endovascular laser treatment device designed to be used with an optical fiber to treat venous diseases such as varicose veins is provided. The device includes a spacer that positions the distal end of the optical fiber away from the inner wall of the blood vessel during delivery of laser energy to provide an even distribution of thermal energy around the vessel, thereby avoiding vessel perforation and incomplete vessel collapse.

A preventive / therapeutic agent for varicose veins or a composition for the prevention or alleviation of symptoms relevant to varicose veins. The preventive / therapeutic agent for varicose veins or the composition for the prevention or alleviation of symptoms relevant to varicose veins each is characterized by containing eicosapentaenoic acid.

Methods for using blood pumps to treat heart failure are disclosed. The pump is mounted on an interior of a stent, and the stent is releasably mounted on a distal end of a catheter. The distal end of the catheter is inserted into a peripheral artery and advanced to position at a region of interest within the descending aorta, the ascending aorta, or the left ventricle. The stent and the pump are released from the catheter, and the pump is activated to increase blood flow downstream of the pump. The pump can also be positioned in the vena cava or used to treat right-sided heart failure following the insertion of an LVAD, or to improve venous return in patients with varicose veins. Non-stent pumps are described for insertion between the pulmonary vein and aorta, and between the vena cava and pulmonary artery designed for use during cardiac surgery.

A blood vessel occlusion system and method includes a handheld probe including a power source, the probe being adapted to transmit energy from the power source through a body surface and into a target blood vessel, for example a varicose vein. Further included is a manual or automatic switch mechanism adapted to enable and disable the power source in response to a predetermined level of compression applied, by means of the probe against the target blood vessel. When the blood vessel is compressed sufficiently to collapse and substantially slow or substantially prevent a flow of blood therethrough, the power source is activated and the vessel is cauterized, leaving the blood vessel in a condition that is resistant to recanalization.

A device for promoting the clotting of blood in body cavities includes a flexible body portion; an expandable member located on the flexible body portion; and a blood clotting material attached to the expandable member. When used, insertion of at least a portion of the blood clotting material into the body cavity causes at least a portion of the blood clotting material to contact blood emanating from a bleed site. Methods of providing therapies to tube-shaped organs include the steps of providing suitable devices having expansion capabilities, positioning the devices at the appropriate bleed sites, and expanding the devices to cause blood clotting materials to contact the bleed sites. Materials that may be used as the blood clotting material include zeolites, molecular sieve materials, diatomaceous earth, clay, silica-based materials, oxidized cellulose, carboxymethyl cellulose, bioactive glass, biological hemostats, chitosan, and combinations of the foregoing.

A device for withdrawing a tubular body part such as a varicose vein is provided. A needle is inserted through a skin. The needle contains therein an engaging element in an undeployed state. After the needle is inserted, the engaging element is pushed out of the needle and is typically deployed inside the vein. The vein is now ready to be withdrawn by the deployed engaging element. Using a puncture device that also contains a deployable engaging element allows the puncture site to be small and causes less trauma to the surrounding tissue.

A temporary absorbable venous occlusive stent for use in a varicose vein treatment method includes a stent body, a bio-absorbable material associated with the body, and a closure for blocking blood flow past the stent when implanted in a vein. The stent produces localized blood clotting, fibrosis and vein collapse as it is absorbed. A permanent blockage is produced that prevents the undesirable back flow of blood from above the blockage site, thereby reducing distension of a varicose vein below the blockage site.

Improved devices and methods for removing blood from a blood vessel in preparation for endovenous laser ablation are described. The improved methods include one or more of: placing the patient in the Trendelenburg position, applying external compression around the vein, massaging the vein, cooling the vein externally, encouraging spasming of the vein, and removing blood with a suction device.

A temporary absorbable venous occlusive stent for use in a varicose vein treatment method includes a stent body, a bio-absorbable material associated with the body, and a closure for blocking blood flow past the stent when implanted in a vein. The stent produces localized blood clotting, fibrosis and vein collapse as it is absorbed. A permanent blockage is produced that prevents the undesirable back flow of blood from above the blockage site, thereby reducing distension of a varicose vein below the blockage site.

A blood vessel occlusion system and method includes a handheld probe including a power source, the probe being adapted to transmit energy from the power source through a body surface and into a target blood vessel, for example a varicose vein. Further included is a manual or automatic switch mechanism adapted to enable and disable the power source in response to a predetermined level of compression applied, by means of the probe against the target blood vessel. When the blood vessel is compressed sufficiently to collapse and substantially slow or substantially prevent a flow of blood therethrough, the power source is activated and the vessel is cauterized, leaving the blood vessel in a condition that is resistant to recanalization.

This invention relates to an elastic bandage for supporting a body extremity such as a leg. Such bandages are used to overcome problems with fluid retention and swelling in the legs, occurring as a consequence of varicose veins, vascular incompetence, pregnancy, etc. It is a task of this invention to supply an active support for a body extremity such as a leg, which can be used by a person underneath the clothes and will not reduce the mobility of the patient. This task is solved in that an elastic bandage comprises an elastic layer for surrounding a body extremity to exert compressive force on the extremity, the bandage being, at least partly, formed by elastomeric actuation elements, whereby electrical control of the compressive force is possible, and where the control is due to a signal from some sensing system.

A medical apparatus and method useful for the efficacious thermal treatment of lumen such as varicose veins during laser surgery is provided. The method includes inserting an optical fiber into a lumen at a treatment site which has at least two treatment segments. The light-emitting section of the optical fiber is aligned with a first treatment segment within the treatment site. Energy is emitted into the lumen at the first treatment segment and a temperature of the lumen is measured at the first treatment segment. The energy delivered to the treatment segment can be adjusted in response to the temperature measurement. The light-emitting section is moved to at least a second treatment segment within the lumen and energy is emitted into the lumen at the second treatment segment. During treatment at the second treatment segment, the temperature of the lumen is measured at the second treatment segment. This method can also include storing a temperature target in the memory device; generating a temperature signal using the temperature sensor; utilizing the temperature signal to determine the measured temperature; and comparing the measured temperature to the temperature target stored in the memory device. The light-emitting section is moved to the next treatment segment when the measured temperature is equal or greater than the temperature target.

A variceal banding endoscope includes an elongated shaft having a distal end and a proximal end that is removably connected to a control unit. The endoscope includes a variceal banding apparatus fixedly attached to the distal end of the endoscope and capable of receiving a plurality of ligation bands. A trigger cable extends from the proximal end to the distal end of the shaft and is digitally actuated by an actuator in the control unit or handle of the scope in response to a user input device.

This invention relates to an elastic bandage for supporting a body extremity such as a leg. Such bandages are used to overcome problems with fluid retention and swelling in the legs, occurring as a consequence of varicose veins, vascular incompetence, pregnancy, etc. It is a task of this invention to supply an active support for a body extremity such as a leg, which can be used by a person underneath the clothes and will not reduce the mobility of the patient. This task is solved in that an elastic bandage comprises an elastic layer for surrounding a body extremity to exert compressive force on the extremity, the bandage being, at least partly, formed by elastomeric actuation elements, whereby electrical control of the compressive force is possible, and where the control is due to a signal from some sensing system.

The invention relates to a method for preparing wheat bran dietary fiber by utilizing ultrasound-assisted enzymatic hydrolysis, and in particularly belongs to the technical field of the agricultural and sideline product development, the functional food additive and the nutritional heath caring. The invention is characterized in that the invention adopts wheat bran as the raw material, and the wheat bran dietary fiber preparation is realized through utilizing the ultrasound treatment, and removing starch and protein by enzymatic method, and then the preparation of fine dietary fiber with different grain size is realized by crumbling with a grinder. The invention realizes the effective value increment and the utilization of the wheat bran, the prepared functional dietary fiber has important physiological function, and thereby can realize the functions of preventing constipation, colon cancer, intestina diverticulum, hemorrhoid and varicose veins of the lower extremities; the serum cholesterol is lowered, and the heart disease caused by coronary sclerosis can be prevented; the sensitivity of the peripheral nerve tissue to the insulin is improved, and the blood sugar level of the diabetes patient can be regulated, the invention is very useful for human health, and the economic benefit as well as the social benefit are greatly increased.

The present invention provides a liquid wound dressing with the functions of promoting wound healing and resisting bacteria. Said liquid wound dressing contains 0.5-5.0 wt% of hyaluronic acid and its derivative and 0.0005-0.04 wt% of gel of nano silver. It also can contain water-soluble high-molecule and humectant. Said invention also provides its concrete application method.

A medical ultrasound apparatus and associated methods of use is disclosed enabling a relatively non-invasive or minimally invasive method to treat skin or tissue. The apparatus is constructed from an ultrasound tip mechanically coupled to a shaft. The shaft is mechanical coupled to an ultrasound transducer driven by an ultrasound generator. The ultrasound tip possesses at least one radial surface, a cavity, or some other form of a hollowed out area, within at least one of the radial surfaces, and a non-metallic sheath covering portions of the tip so that only the sheath and not the tip would normally contact the patient's skin. The disclosed method of treating spider, reticular or small varicose veins with the apparatus can be practiced by contacting the sheath with the patient's epidermal skin layers and delivering ultrasonic energy released from the various surfaces of the vibrating tip to the skin and / or tissue through direct contact and / or with a coupling fluid focused from a cavity.

Apparatuses and methods for removing veins, usually varicose veins, rely on endoluminal capture of a distal end of the vein segment to be removed. In the illustrated embodiments, a shaft having reciprocatable penetrating elements is used to engage and capture the distal end of the vein. After rotating the shaft to pull the distal segment of the vein away from the connecting tissue, the shaft is withdrawn proximally, invaginating the segment back to the point of insertion.

An apparatus for treating varicose veins includes a catheter (20) where the distal end is placed within a varicose vein and the proximal portion remains outside the body of the subject. A heating element (22) heats the vein. A cooling element (62) can be applied to an external surface of the skin above the vicinity of the heating element. A control unit (26) can drive the heating element to apply heat to the vein simultaneously. Alternatively, the control unit can apply a current to the heating element to resistively heat a resistive element. A method for treating a varicose vein includes inserting the elongated heating element into the vein, and driving the heating element to apply heat to the segment of vein simultaneously from the entire active heating portion.

A medical support appliance custom made to fit the patient's limb exactly. Since the appliance fits exactly, it restricts the engorgement of varicose veins and swelling of the limb by retaining its exact shape and dimension, thereby resisting any outward expansion of the limb, and not by pressing in on the limb. The appliance employs an assembly of materials which resists the outward pressure exerted by the veins by retaining its circumference dimensions, and which at the same time stretches longitudinally for comfort and mobility. The assembly is a composite of latex, formed around a replica of the patient's limb, wrapped with non-stretch fiberglass thread, and finished with trim material and a zipper.

Described herein are a device and a method for the treatment of varicose veins via laser radiation, and in particular using a holmium laser. The radiation of a laser source (5) is injected in a fiber (3) that can be inserted in the vessel to be treated. The laser source emits a radiation such as to cause a hyalinizing sclerosis with structural modifications both to the fibers of the collagen (shrinkage) and to the extracellular matrix of the median coat of the vein by the photothermal effect, substantially without thermal stress of the morphological component of the tunica media and of the tunica intima.

A compression garment is designed to be worn like a sock to prevent and treat varicose veins. The garment has a resiliency that provides compressive support to the wearers venous structures during periods of raised venous pressure, and has a compliance that allows venous blood to flow back to the heart. Compressive support is provided in either the foot, calf area, or thigh area, or combinations thereof. The garment includes one or more holes to allow the wearer's heel or toes to be exposed outside of the garment such that the wearer is able to dissipate sufficient body heat and remain comfortable during long periods of wearing the garment. The garment can also include a perforated region having a plurality or relatively vent holes.

An endoscopic ligation tool for ligating an internal body tissue such as an esophageal varix, including: an outer cylinder member formed in the shape of a cylinder; an inner cylinder member formed in the shape of a cylinder, which is capable of sliding movement within the outer cylinder member; and an O-ring (ligation band member) which is annular in shape and freely extends and contracts.

A surgical tool for extracting varicose veins includes an elongate handle with a hook at one end and a piercing / dilating head at the other end. The piercing / dilating head is bulbous in shape and has both a sharp tip and a dilating surface that can be used to dilate an opening without making a longitudinal incision. The hook can be used to extract the vein through the dilated opening. Sculpted sections on the piercing / dilating head help to prevent the tool from rolling on flat surfaces, and alternating sections of relieved surfaces and surfaces with polygonal cross-sections make it easier to grip.