56 results about "Great vein" patented technology

This invention is an improved method and device for treating varicose veins 200 or the greater saphenous vein 202. The method comprises the use of infrared laser radiation in the region of 1.2 to 2.2 um in a manner from inside the vessel 200 or 202 such that the endothelial cells of the vessel wall 704 are damaged and collagen fibers in the vessel wall 704 are heated to the point where they permanently contract, the vessel 200 or 202 is occluded and ultimately resorbed. The device includes a laser 102 delivered via a fiber optic catheter 300 that may have frosted or diffusing fiber tips 308, or that may be provided with a protective spacer. A motorized pull back device 104 may be used, and a thermal sensor 600 may be used to help control the power required to maintain the proper treatment temperature.

Method and apparatus for the extracorporeal treatment of blood by utilizing a peripherally inserted dual lumen catheter assembly for the continuous removal and return of blood for renal replacement treatment, in particularly, treatment of congestive heart failure and fluid overload by ultrafiltration. A catheter is inserted in a peripheral vein and maneuvered upward through the vascular system to access the reservoir of blood in the large or great veins for continuous blood withdrawal and treatment. Air-tight connectors are incorporated in the catheter assembly to overcome the untoward effects of negative pressure in blood withdrawal.

Described are devices, methods and systems useful for achieving occlusion of vascular vessels. Percutaneous procedures can be used to occlude and obliterate the greater saphenous vein, for example in the treatment of varicose vein condition caused by venous reflux. Certain embodiments encompass the deployment and filling of an inflatable occlusion device via a percutaneous procedure, so as to occlude or obliterate a portion of a vascular vessel.

Described are methods, devices, and systems for occluding or ablating vascular vessels. Noninvasive procedures can be used to occlude and obliterate the greater saphenous vein, for example in the treatment of varicose vein condition caused by venous valve insufficiency. Further described is the cooperative use of an angiogenic remodelable material with one or more sclerosing agents to cause closure of a targeted bodily vessel.

Described are devices, methods and systems useful for achieving occlusion of vascular vessels. Percutaneous procedures are used to occlude and obliterate the greater saphenous vein, for example in the treatment of varicose vein condition caused by venous reflux. Certain embodiments encompass the deployment of one or more vascular occlusion devices via a through-and-through percutaneous procedure that leaves the vascular occlusion device or devices in a through-and-through condition.

Described are devices, methods and systems useful for achieving occlusion of vascular vessels. Percutaneous procedures can be used to occlude and obliterate the greater saphenous vein, for example in the treatment of varicose vein condition caused by venous reflux. Certain embodiments encompass the percutaneous delivery of an occlusion device inverted within a cannula, its deployment and filling, so as to occlude or obliterate a portion of a vascular vessel.

An appliance 10 for large saphenous vein varix treatment comprises a stainless steel guide wire 1 provided on a distal end with a guide portion 11 and on a proximal end with a coupled portion 12, an absorption thread 2 connected to the proximal end coupled portion 12 of the guide wire 1, a transparent flexible bag 3 for containing the absorption thread 2, and a sterilization holding case 4 for containing the guide wire 1 and the transparent flexible bag 3 in a sterilized condition. Upon use, the sterilization holding case 4 is opened, a vein sclerosing agent is injected into the transparent flexible bag 3, and the vein sclerosing agent is impregnated into the absorption thread 2.

Provided is a pull assistance device for varicosity stripping. A cavity is formed in the front upper portion of a handle (1) to serve as a machine cabin (102), the upper end of the machine cabin (102)is provided with an opening, the upper end of a puller (2) extends out of the opening, the lower portion of the puller (2) is connected with a wire compression block (3) through a transmission mechanism, a wire clamping groove (4) is longitudinally formed in the lower portion of the front end of the handle (1), a pressure bearing block (6) is fixed to the lower edge of the wire clamping groove (4), the bottom surface of the wire compression block (3) is at the upper portion of the wire clamping groove (4), the bottom surface of the wire compression block (3) is provided with compression teeth(303), and the top surface of the pressure bearing block (6) is provided with bearing teeth (601). By arranging the transmission mechanism, the pull assistance device can be easily operated in use, astable and enough guide wire clamping action force can be obtained, an assembly structure design is exquisite and reasonable, the operation is flexible, stripping and penetration are implemented easily, tissue damage is less, the pain of a patient is relieved, the bleeding time is shortened, wounded surfaces are decreased, installation and replacement are quick and convenient, the accurate efficiency of stripping diseased great saphenous veins and cirsoid branch veins is improved, and the surgical risk is reduced.

An implantable system for the defibrillation of the atria of a patient's heart comprises (a) a first catheter configured for insertion into the right atrium of the heart, preferably without extending into the right ventricle of the heart; a first atrial defibrillation electrode carried by the first catheter and positioned at the atrial septum of the heart (i.e., an atrial septum electrode); (b) a second atrial defibrillation electrode which together with the first atrial defibrillation electrode provides a pair of atrial defibrillation electrodes that are configured for orientation in or about the patient's heart to effect atrial defibrillation, and (c) a pulse generator operatively associated with the pair of atrial defibrillation electrodes for delivering a first atrial defibrillation pulse to the heart of the patient. The second electrode may be configured for positioning through the coronary sinus ostium and in the coronary sinus or a vein on the surface of the left ventricle, such as the great vein. An additional electrode configured for positioning in the superior vena cava, right atrium (including the right atrial appendage, or the right ventricle may also be included, and the pulse generator may be configured or programmed for concurrently delivering a first defibrillation pulse through the additional electrode and the atrial septum electrode, and a second defibrillation pulse through the atrial septum electrode and the second electrode. Electrode assemblies and methods useful for carrying out the invention are also disclosed.

The invention discloses a great saphenous vein infusion fixator for the foot of a child. The great saphenous vein infusion fixator comprises a fixator body which comprises an airbag, a foot-shaped cavity is arranged in the airbag, the airbag is connected with an air pump, a pressure sensor is arranged in the airbag, a temperature sensor is arranged on the outer wall of the inner side of the airbag and connected with a microprocessor through a pressure signal processing circuit, the temperature sensor is connected with the microprocessor through a temperature control module, and the microprocessor is connected with the air pump through an air pump driving circuit. The fixator can well restrain activities of the foot of the child and keep a vein access unblocked; the foot of the child is in a comfortable functional position, and the comfortable sensation of the child is guaranteed; in addition, a heating function is achieved, the foot can be kept at an appropriate temperature in cold seasons such as winter, and the foot is prevented from becoming cold.

Described are methods, devices, and systems for occluding or ablating vascular vessels. Noninvasive procedures can be used to occlude and obliterate the greater saphenous vein, for example in the treatment of varicose vein condition caused by venous valve insufficiency. Further described is the cooperative use of an angiogenic remodelable material with one or more sclerosing agents to cause closure of a targeted bodily vessel.

The invention discloses a treatment stocking applied after an operation of varicosis of great saphenous vein. The stocking comprises a stocking body, wherein the stocking body comprises a foot part, a shank section and a thigh section, wherein a cracked part is formed at a position of the shank part corresponding to the part in front of a shank shin; pull buckle positions which combine two sides of the cracked part into a whole are disposed on the two sides of the cracked part; and the pull buckle device is composed of multiple pull buckle units which are arranged along the length direction of the cracked part. After the operation of varicosis of great saphenous vein, the stocking body of the treatment stocking applied is worn after the operation of varicosis of great saphenous vein; then the shank and thigh parts of the stocking are lifted; and after fixation of the thigh section, the pull buckle devices of the shank section are buckled according to a patient's situation. In this way, the whole wearing course is completed. The courses are simple, time-saving and effort-saving; and the treatment stocking can completely avoid touch of the patient's wounds and can relieve the patient's pains. One person can complete the whole wearing course of the treatment stocking; and during changing of fresh wound dressing, the patient can rationally release and buckle hidden pull hooks according to wound positions, so repeated wearing and wearing-off could be avoided; the patient feels comfortable and conducts operations conveniently; and time consumption is reduced.