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 (300) comprising a balloon blocking catheter. The radio frequency ablation device (300) comprises a double or multi-lumen balloon blocking catheter (310) and a radio frequency ablation catheter (320). a stent (321) is arranged at the far end of the radio frequency ablation catheter (320). Two or more electrodes (322, 325, 326) are arranged on the stent (321), and are connected to a radio frequency generator respectively by means of the corresponding guide wires arranged in the radio frequency ablation catheter (320). When the radio frequency ablation device (300) is used for ablating blood vessel peripheral nerves, inflating a blocking balloon (311) arranged at the far end of the guide catheter (310) to block local blood flow in a blood vessel. The invention has ideal nerve ablation effect.

Abstract: The present invention provides a method for treating diabetes and nonalcoholic fatty liver disease (NAFLD), associated condition or disorder thereof, or symptoms thereof suffered by a subject such as a mammal (e.g. a human patient or a pet), comprising (1) placing one or more electrodes within a target blood vessel of the subject and against the target blood vessel wall, wherein the target blood vessel includes the celiac artery and/or a segment of the abdominal aorta terminated at its junction with the celiac artery; (2) adhering a surface electrode on an external surface such as skin of the subject; and (3) releasing a therapeutically effective amount of radiofrequency energy through the one or more electrodes to nearby tissues, so as to increase the temperature of the nearby tissues and induce a thermal alteration of the nearby tissues.

Abstract: A radio frequency ablation catheter having the function of a movable guide wire, comparing an electric support, a catheter body and a control handle which are sequentially provided. The catheter body is provided there with a cavity for the sliding of the movable guide wire. The distal end of the movable guide wire passes through the catheter body and protects from the distal end of the electric support, a soft guide wire provided at the distal end of the movable guide wire is always kept outside the electric support. The proximal end of the movable guide wire protects from the proximal end of the catheter body and enters the control handle, then, the proximal end of the movable guide wire is fixed to a controlling member provided on the control handle or is fixed to a controlling member provided outside the control handle.

Abstract: Provided is an arc-shaped multi-focal point fixed anode gate controlled ray source, comprising an arc-shaped ray source housing, a ray tube bracket, a plurality of fixed anode reflected ray tubes and a plurality of gate controlled switches, wherein the plurality of fixed anode reflected ray tubes are fixed on the arc-shaped ray source housing by means of the ray tube bracket, and the focal points of the plurality of fixed anode reflected ray tubes are distributed on the same distribution circle; and the plurality of gate controlled switches are correspondingly connected to the plurality of fixed anode reflected ray tubes. By splicing the plurality of arc-shaped multi-focal point fixed anode gate controlled ray sources into an integral ring stricture, the focal points of all the fixed anode reflected ray tubes therein can be distributed on, the same distribution circle.

Abstract: Provided is an arc-shaped multi-focal point fixed anode gate controlled ray source, comprising an arc-shaped ray source housing, a ray tube bracket, a plurality of fixed anode reflected ray tubes and a plurality of gate controlled switches, wherein the plurality of fixed anode reflected ray tubes are fixed on the arc-shaped ray source housing by means of the ray tube bracket, and the focal points of the plurality of fixed anode reflected ray tubes are distributed on the same distribution circle; and the plurality of gate controlled switches are correspondingly connected to the plurality of fixed anode reflected ray tubes. By splicing the plurality of arc-shaped multi-focal point fixed anode gate controlled ray sources into an integral ring stricture, the focal points of all the fixed anode reflected ray tubes therein can be distributed on, the same distribution circle.

Abstract: The present invention discloses a stationary real-time CT imaging system, comprising an annular photon counting detector, an annular scanning x-ray source, and a scanning sequence controller. Under the control of the scanning sequence controller, the annular scanning x-ray source emits x-ray, and the x-ray penetrates the object being tested and projects onto the corresponding annular photon counting detector. The annular photon counting detector delivers the corresponding exposure information through the main scanning machine and the main controlling unit to a CT main machine and a human-machine interface unit. The image reconstruction is completed in the CT main machine and the human-machine interface unit. By electronically controlling and switching x-ray projection positions in order, the scanning speed is enhanced by tens of times, thereby obtaining dynamic 3D images.

Abstract: A photon count-based radiation imaging system. The invention also relates to a method of implementing X-ray imaging in said system, and to key apparatus of said system. In the system, an x-ray source directs x-rays at a sample on a scanning platform. When the x-rays pass through said sample, photons carrying information about characteristics of the material at various spatial positions are produced. A photon count detector counts the photons on an imaging plane, obtains incident photon projection data and energy data, and transmits same to a 3D reconstruction system. The 3D reconstruction system reconstructs, on the basis of said projection data and energy data, the 3D structure and the matter composition inside the sample, then performs digital dyeing on the component parts of the sample, thereby differentiating the matter composition of the sample.

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 present invention discloses a stationary real-time CT imaging system, comprising an annular photon counting detector, an annular scanning x-ray source, and a scanning sequence controller. Under the control of the scanning sequence controller, the annular scanning x-ray source emits x-ray, and the x-ray penetrates the object being tested and projects onto the corresponding annular photon counting detector. The annular photon counting detector delivers the corresponding exposure information through the main scanning machine and the main controlling unit to a CT main machine and a human-machine interface unit. The image reconstruction is completed in the CT main machine and the human-machine interface unit. By electronically controlling and switching x-ray projection positions in order, the scanning speed is enhanced by tens of times, thereby obtaining dynamic 3D images.

Abstract: A photon count-based radiation imaging system. The invention also relates to a method of implementing X-ray imaging in said system, and to key apparatus of said system. In the system, an x-ray source directs x-rays at a sample on a scanning platform. When the x-rays pass through said sample, photons carrying information about characteristics of the material at various spatial positions are produced. A photon count detector counts the photons on an imaging plane, obtains incident photon projection data and energy data, and transmits same to a 3D reconstruction system. The 3D reconstruction system reconstructs, on the basis of said projection data and energy data, the 3D structure and the matter composition inside the sample, then performs digital dyeing on the component parts of the sample, thereby differentiating the matter composition of the sample.

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 virtual grid imaging method capable of eliminating scattered radiation effect and an imaging system thereof for imaging with high energy rays, in which scattered rays reaching a surface of a detector are not filtered, and data of the scattered rays and straight rays are all sampled. The method includes decomposing a digital image into multi-band images from high to low according to frequencies; performing de-scattering process for low-frequency band images; performing contrast enhancement process for high-frequency band images; and merging the images of various frequency bands processed in the second and third steps, and forming an output image. In digital X-ray imaging the scattered radiation effect is eliminated. Significant reduction of the dosage of the rays, in which only one third of the required dosage of a common grid is used to obtain the same image brightness.

Abstract: A virtual grid imaging method capable of eliminating scattered radiation effect and an imaging system thereof are provided. The method is mainly applicable for imaging with high energy rays, in which scattered rays reaching a surface of a detector are not filtered, and data of the scattered rays and straight rays are all sampled, and then, separation and inhibition of scattered ray component are performed for the sampled data, thereby eliminating the scattered ray component in the resulted image. The method particularly includes the following steps: (1) decomposing a digital image into multi-band images from high to low according to frequencies; (2) performing de-scattering process for low-frequency band images; (3) performing contrast enhancement process for high-frequency band images; and (4) merging the images of various frequency bands processed in the step (2) and the step (3), and forming an output image.