48 results about "Endoluminal ultrasound" patented technology

A method for medically employing ultrasound within a body cavity of a patient. An end effector is obtained having a medical ultrasound transducer assembly. A biocompatible hygroscopic substance is obtained having a non-expanded anhydrous state and having an expanded and fluidly-loculated hydrated state. The end effector, including the transducer assembly, and the substance in substantially its anhydrous state are inserted into a body cavity (such as endoscopically inserted into a uterus) of a patient. The transducer assembly is used to medically image and / or medically treat patient tissue (such as stopping blood flow to, and / or ablating, a uterine fibroid). A system for medically employing ultrasound includes the end effector and the substance. In another system, the end effector includes the substance. The substance in its hydrated state expands inside the body cavity providing acoustic coupling between the wall of the body cavity and the transducer assembly.

A needle biopsy guide system is disclosed for attachment to an endoluminal ultrasound probe or like sonographic instrument. The device includes a biopsy-guide attachment that allows for trocar catheter placement for abscess drainage or like procedures, using the transvaginal or transrectal route under sonographic control. The device has a base portion, which is attachable to an ultrasound probe. A removable retainer is provided that slides into the base unit to hold a biopsy needle in place. A physician may locate the target area in the body with the ultrasound probe, insert the biopsy needle into the target area, and then remove the insert (retainer) from the base unit and ultrasound probe, and leave the biopsy needle in place in the body.

The invention discloses a gas ultrasonic flowmeter. A meter body of the gas ultrasonic flowmeter comprises a box body, a front end flange cover with a gas inlet and a rear end flange cover with a gas outlet, one side of the front end flange cover is connected to one end face of the box body, and a gas inlet flow dividing assembly is further arranged in the position, located on the side, of the box body. One side of the rear end flange cover is connected to the other end face of the box body and provided with a gas leading-out component, a partition plate dividing the box body into a gas inlet cavity and a gas outlet cavity is arranged in the box body and located between the gas inlet flow dividing assembly and the gas leading-out component, a hollow measuring pipe section is installed on the partition plate, and the gas inlet end of the measuring pipe section is located in the gas inlet cavity. The gas outlet end of the measuring pipe section is located in the gas outlet cavity, and an ultrasonic transducer pair is installed on the measuring pipe section and used for detecting the flow of gas. A front straight pipe section, a rear straight pipe section and a front flow stabilizer in the prior art are removed, the size of the meter body is effectively reduced, the structure is more compact, installation is more convenient, and the installation requirement of the gas ultrasonic flowmeter in the available space limited area can be met.

The invention relates to an intracavity ultrasonic lithotripsy device, which comprises an outer mirror sheath and a mirror body. The outer mirror sheath is provided with a rotating sheath and an endoscope sheath. There will be no axial relative displacement between the mirror sheaths; the end of the endoscope sheath away from the mirror body is provided with a stone picking assembly, and an opening is also provided on the side wall of the stone picking assembly, and the opening can be covered by a sealing assembly. An instrument channel tube is arranged in the cavity, and the crushed stone component is arranged in the instrument channel tube, and its crushed stone end extends into the stone picking component. The intracavity ultrasonic lithotripsy device of the present invention can confine stones in a closed space, and stone residues will not enter the body during stone crushing operation, and there is no stone residue after operation, causing less damage to surrounding tissues, and the stones are crushed The debris interferes less with the endoscopic field of view, can significantly improve the efficiency and effect of the operation, and significantly reduce the pain and burden of the patient.

An intraluminal ultrasound imaging device includes a flexible elongate member configured to be positioned within a body lumen of a patient. The flexible elongated element includes a proximal portion and a distal portion. The apparatus also includes an ultrasound imaging assembly disposed at the distal portion of the flexible elongate member. The ultrasound imaging assembly is configured to obtain imaging data of the body lumen. The ultrasound imaging assembly includes a transducer array including a substrate, a silicon oxide layer disposed over the substrate, and rows of micromachined ultrasonic transducers disposed on the silicon oxide layer element. Two of the rows of micromachined ultrasonic transducer elements are separated by trenches formed by etching a shield formed in the silicon oxide layer. Associated apparatus, systems and methods are also provided.

The invention discloses an artery intracavity ultrasonic imaging method. The withdrawing speed of a probe is determined according to relative speed change data between a target artery section and an ultrasonic probe when the ultrasonic probe is static, so that the influence of the movement process of the artery cavity along with the heartbeat on the withdrawing image acquisition process of the probe can be reduced; loss of useful data can be avoided while repeated imaging is avoided; an appropriate number of arterial cavity images are enabled to be acquired; the occurrence of image distortion is avoided; the accuracy of withdrawing image acquisition is improved, so that a reliable length value is provided for an arterial intervention doctor in the arterial intervention treatment process, and the accuracy of the arterial lesion length measured according to artery intracavity ultrasonic imaging is improved; and the diagnosis and treatment effect can be effectively improved. The invention also discloses an artery intracavity ultrasonic imaging device, computer equipment, a computer readable storage medium and an artery intracavity ultrasonic imaging system, which have the beneficial effects.