Abstract: Disclosed are a radio-frequency ablation catheter having a spiral structure and device thereof. The radio-frequency ablation catheter has an elongated catheter body. A spiral electrode support is arranged at the front end of the catheter body. Multiple electrodes are arranged on the electrode support. A control handle is arranged at the rear end of the catheter body. Wall-attachment adjusting wires having various structures can be arranged in the radio-frequency ablation catheter, so that the radio-frequency ablation catheter having a spiral structure can be adapted to target vessels of different diameters, and so that the electrodes on the electrode support have a good wall-attachment state.

Abstract: The present invention provides a method of treating or alleviating erectile dysfunction in a patient. Multiple electrodes are placed within a segment of the internal iliac artery of the patient and against blood vessel wall of the internal iliac artery. Radiofrequency energy is released through at least one of the multiple electrodes to nearby tissues, so as to increase the temperature of the nearby tissues and induce a thermal alteration of the nearby tissues.

Abstract: The present invention provides medical imaging apparatus comprising a primary module for imaging a patient and a supplemental module. A controlling circuitry activates the supplemental module shortly before, during, or shortly after an imaging process using the primary module. Information, data or images of the patient acquired with the supplemental module is registered to the primary image. The invention can aid a radiologist to avoid confusion, mismatching, and other errors when he is reading the primary image; and can help a doctor to establish a correlation between conditions revealed by the primary image, and cutaneous conditions and anatomical change revealed by the supplemental module.

Abstract: The present invention provides a train-like pharmaceutical composition (configuration, or dosage form) comprising segments linearly arranged in series like cars of a train. When the pharmaceutical composition is administrated into a patient's body, some of the segments are “visible” to an instrument, but others are not. However, “invisible” segments can be estimated, deduced, calculated, or inferred from “visible” segments. The “invisible” segments can be used for neutralizing intratumoral lactic acidosis combined with glucose deprivation to control tumor, among other applications.

Abstract: The present invention provides a method of relieving or alleviating abdominal cancer pain or improving pain VAS score in a cancer patient Multiple electrodes are placed within a segment of the abdominal aorta of the patient and against blood vessel wall of the abdominal aorta. Radiofrequency energy is released through at least one of the multiple electrodes to nearby tissues, so as to increase the temperature of the nearby tissues and induce a thermal alteration of the nearby tissues.

Abstract: The present invention provides a catheter apparatus with a carrier comprising right-handed wire helixes and left-handed wire helixes that are plainly or bi-axially woven into a tubular structure. A therapeutic assembly wraps around one of the wire helixes to stabilize an associated interstice of the tubular structure. The regular shape of the carrier may be quickly recovered after the carrier is seriously bent or distorted in an intravascular treatment.

Abstract: Provided in the present invention is a three-dimensional precise intracavitary radiotherapy method and system for treating tumours, comprising the steps of: (1) lesion three-dimensional quantitative measurement and analysis of three-dimensional scanning image of the lesion cavity; (2) comprehensive analysis according to lesion three-dimensional quantitative measurement results and lesion characteristics to calculate the three-dimensional distribution of lesion radiation dose; and (3) according to the three-dimensional distribution diagram of radiation dose, selecting appropriate radiation sources and radiation dose to make a stent, and performing three-dimensional precise intracavitary radiotherapy. At the same time, also provided by the present invention is a system for achieving the above radiotherapy method.

Abstract: The present invention provides a catheter apparatus with a carrier comprising right-handed wire helixes and left-handed wire helixes that are plainly or bi-axially woven into a tubular structure. A therapeutic assembly wraps around one of the wire helixes to stabilize an associated interstice of the tubular structure. The regular shape of the carrier may be quickly recovered after the carrier is seriously bent or distorted in an intravascular treatment.

Abstract: A radio frequency ablation device includes a balloon blocking catheter. The radio frequency ablation device comprises a double or multi-chamber balloon blocking catheter and a radio frequency ablation catheter. An electrode support is arranged at the far end of the radio frequency ablation catheter. Two or more electrodes are arranged on the electrode support, and are connected to a radio frequency generator respectively by means of the corresponding guide wires arranged in the radio frequency ablation catheter. When the radio frequency ablation device is used for ablating lumen peripheral nerves, inflating a closed balloon arranged at the far end of the guide catheter to block local blood flow in a blood vessel.

Abstract: The present invention provides a medical device with a balloon-stent assembly comprising a stent, a balloon within the stent, and an ablation member. The medical device can be useful for a combined procedure of balloon angioplasty, radiofrequency ablation, and stent placement. The invention exhibits numerous merits such as simpler and precise operation, and a single device for multiple applications.

Abstract: A radio frequency ablation device, comprising a radio frequency ablation tube (10), a control handle (20) and a temperature-controlling radio frequency instrument (35). The middle section of the radio frequency ablation tube (10) carries a strip-shaped connecting electrode; a radio frequency electrode (12) is formed at the distal end of the radio frequency ablation tube (10) and connected to the control handle (20) via the strip-shaped connecting electrode. The control handle (20) comprises a control guiding control a tube electrode control handle (23) and a tube electrode auxiliary control handle (24) An integrated interface (50) is disposed at the rear of the control handle (20), and the temperature-controlling radio frequency instrument (35) is connected to the integrated interface (50) via an integrated cable (34). And a radio frequency electrode (12) a radio frequency ablation tube (10) and a guide tube (16) are also provided.

Abstract: A corrugated radiofrequency ablation catheter having wall-attaching adjustment wires (6, 6A, 6B, 6A?, and 6B?), provided with a strip-shaped connecting catheter, an electrode frame provided at the front extremity of the connecting catheter, and a control handle (20) provided at the rear extremity of the connecting catheter. The electrode frame is a corrugated electrode frame consisting of one or more corrugations, where one or more electrodes (2) respectively are distributed on the corrugations. The rear sections of the wall-attaching adjustment wires (6, 6A, 6B, 6A?, and 6B?) are slidably provided within one lumen of the connecting catheter and are connected at the rear extremities (60) onto a control element (22) provided on the control handle (20) or connected onto a control element (22) provided outside of the control handle (20).

Abstract: A corrugated radiofrequency ablation catheter and an apparatus thereof. The radiofrequency ablation catheter is provided with a strip-shaped connecting catheter (10). An electrode frame is provided at the front extremity of the connecting catheter (10). A control handle (20) is provided at the rear extremity of the connecting catheter (10). The electrode frame is a corrugated electrode frame consisting of one or more corrugations. One or more electrodes (2) respectively are distributed on the corrugations. Slidable, supporting, wall-attaching adjustment wires (6) are provided within one lumen of the connecting catheter (10) and the electrode frame. The supporting, wall-attaching adjustment wires (6) are divided into a flexible segment (61) away from the control handle and a rigid segment (62) in proximity to the control handle.

Abstract: Disclosed are a radio-frequency ablation catheter having a spiral structure and device thereof. The radio-frequency ablation catheter has an elongated catheter body. A spiral electrode support is arranged at the front end of the catheter body. Multiple electrodes are arranged on the electrode support. A control handle is arranged at the rear end of the catheter body. Wall-attachment adjusting wires having various structures can be arranged in the radio-frequency ablation catheter, so that the radio-frequency ablation catheter having a spiral structure can be adapted to target vessels of different diameters, and so that the electrodes on the electrode support have a good wall-attachment state.

Abstract: A radiofrequency ablation catheter having a meshed tubular stent structure and an apparatus thereof, include a meshed tubular stent disposed at a front end of the catheter. The meshed tubular stent comprises and including a meshed tube (1). Both ends of the meshed tube are tapered to form a distal end and a proximal end of the meshed tubular stent. The intermediate segment of the meshed tubular stent has a contracted state and an expanded state. One or more electrodes (2) are fixed onto the intermediate segment. The radiofrequency ablation catheter has improved flexibility and provides great coverage for the blood vessels with different thicknesses and curves. When the meshed tubular stent expands in the blood vessels having different thicknesses of 4-12 mm, all of the electrodes (2) contact the walls. Moreover, when the meshed tubular stent expands in the curved blood vessels, all of the electrodes are ensured to contact the walls.

Abstract: A radio frequency ablation device, comprising a radio frequency ablation tube (10), a control handle (20) and a temperature-controlling radio frequency instrument (35). The middle section of the radio frequency ablation tube (10) carries a strip-shaped connecting electrode; a radio frequency electrode (12) is formed at the distal end of the radio frequency ablation tube (10) and connected to the control handle (20) via the strip-shaped connecting electrode. The control handle (20) comprises a control guiding control a tube electrode control handle (23) and a tube electrode auxiliary control handle (24) An integrated interface (50) is disposed at the rear of the control handle (20), and the temperature-controlling radio frequency instrument (35) is connected to the integrated interface (50) via an integrated cable (34). And a radio frequency electrode (12) a radio frequency ablation tube (10) and a guide tube (16) are also provided.

Abstract: The invention provides a method of blood supply fluctuation therapy (BSFT), which is useful in treating target tissues such as tumors. Also provided are a bio-absorbable BSFT agent such as blood soluble gaseous composition comprising CO2 or O2, and a device for storing and delivering gaseous BSFT agent, comprising a storing bag and a delivery system. The method is non-allergenic, non-nephrotoxic, safe, reliable, and cost-effective.