62 results about "Echo endoscopie" patented technology

The present invention discloses a fiber-optic ultrasonic endoscope with integrated lateral transmission and reception and a preparation method, which belongs to the field of ultrasonic endoscopic imaging. It comprises a double-clad optical fiber, an excitation film, a dielectric mirror, and a sensing film. By etching part of the inner cladding of the optical fiber into a concave spherical surface and coating it with an excitation film, the excitation light transmitted in the inner cladding is absorbed and focused ultrasonic waves transmitted laterally are excited. By etching part of the inner cladding and the core of the optical fiber and preparing it into a Fabry-Perot (F-P) cavity. When the ultrasonic signal transmitted laterally into the ultrasonic endoscope acts on the sensing film of the cavity, the effective refractive index of the sensing film and the F-P cavity length change, and the signal light in the core demodulates this change to complete the detection of ultrasonic waves. The present invention etches the inner cladding and coats it with an excitation film to achieve the excitation of laterally focused ultrasonic waves, etches an F-P cavity on the side of the optical fiber to achieve the lateral detection of ultrasonic waves, and thus forms a fiber-optic ultrasonic endoscope with integrated lateral transmission and reception.

A medical support method includes acquiring a first optical image and an ultrasound image in a case in which an ultrasound endoscope is connected to an image processing device, acquiring a second optical image in a case in which an optical endoscope is connected to the image processing device, outputting the first optical image and the ultrasound image to a display device in a case in which the ultrasound endoscope is connected to the image processing device; and outputting the second optical image and a first recognition result, which is obtained by causing a trained model for an optical image to recognize a first feature region shown in the second optical image, to the display device in a case in which the optical endoscope is connected to the image processing device.

The invention discloses a lossless switching and synchronizing system for multi-modal operation image signals, which relates to the technical field of multi-modal operation image signal processing and comprises an optical flow field coding module, a scene perception decision engine, a time-sharing imaging control module, a data co-processing interface and an exception handling unit. The optical flow field coding module constructs a unified space-time grid, and maps ultrasonic, endoscope and MRI images to grid nodes through cross-modal optical flow field calculation to generate a synchronous frame sequence; the scene perception decision engine dynamically outputs an optimal image mode combination instruction based on instrument position and tissue deformation strain rate data; the time-sharing imaging control module analyzes the instruction and generates imaging equipment excitation signal time sequence configuration; and the data co-processing interface encapsulates the synchronization frame sequence into a DICOM-RT format and transmits the synchronization frame sequence to the display terminal. The abnormality processing unit monitors signal abnormality and generates a compensation frame. According to the system, high-precision space-time synchronization and dynamic intelligent switching of multi-modal images are realized, and the precision and reliability of surgical navigation are improved.

The ultrasonic endoscope includes: an insertion part that includes a tip, a base end, and a longitudinal axis; an ultrasonic transducer that is provided at the tip of the insertion part; a locking groove that is a balloon mounting portion which is disposed closer to the base end of the insertion part than the ultrasonic transducer is and on which a balloon wrapping the ultrasonic transducer is detachably mounted; a balloon pipe line that extends in the insertion part; a tip-side opening surface of the balloon pipe line that is provided closer to the tip than the locking groove and has components normal to a direction of the longitudinal axis; and a groove portion which is formed toward the tip from the tip-side opening surface as a starting point and of which at least a part overlaps the ultrasonic transducer in the direction of the longitudinal axis.

The image processing device, method, and program are designed to facilitate the understanding of the positional relationship between the tip of the endoscope and the lesion. [Solution] The processor sequentially acquires multiple radiographic images of a subject to which an ultrasound endoscope, to which an ultrasound imaging device and radiopaque markers are attached, is inserted into the body cavity. It sequentially acquires multiple two-dimensional ultrasound images corresponding to each of the multiple radiographic images acquired by the ultrasound imaging device. Based on the markers contained in each of the multiple radiographic images, the processor recognizes the position and orientation of the ultrasound endoscope within the body cavity. Based on the position and orientation of the ultrasound endoscope recognized with respect to the multiple radiographic images, it derives a three-dimensional ultrasound image from the multiple two-dimensional ultrasound images.

To provide an ultrasonic endoscope whose durability can be improved.SOLUTION: An ultrasonic endoscope 12 includes a metal ring 41c configured including metal, an ultrasonic vibrator 48 provided at a tip part 40 of an insertion part 22, and a packing material layer 54 provided between the ultrasonic vibrator 48 and the metal ring 41c. The packing material layer 54 is configured including at least one kind of polyurea resin, epoxy resin having a polyurethane structure, and epoxy resin having a polyether amine structure.SELECTED DRAWING: Figure 3

This invention relates to an ultrasound endoscope probe, an ultrasound endoscope system, and its working method. The ultrasound endoscope probe includes multiple convex array transducers arranged in an array on a mounting plate. The mounting plate has a retracted position and an extended position. When the mounting plate is in the retracted position, the connecting surface is abutted against the mating inclined surface. When the mounting plate is in the extended position, the working surface is perpendicular to the central axis of the endoscope catheter. The ultrasound endoscope system includes a signal synchronization module, a data acquisition module, a data processing module, and a display module. By constructing a mapping relationship between the probe coordinate system and the BEV global coordinate system, a three-dimensional voxel mesh is generated to segment blood vessels and tumor tissue, ultimately achieving three-dimensional reconstruction. This invention overcomes the shortcomings of traditional ultrasound imaging, such as low vascular discrimination and large three-dimensional reconstruction errors, effectively improving imaging and segmentation accuracy, clearly displaying the relationship between lesions and adjacent blood vessels, shortening operation time, improving the safety of minimally invasive operations, reducing the burden of diagnosis and treatment for patients, and demonstrating significant clinical application value.

An ultrasound endoscope and system are implemented. An ultrasound endoscope comprises: a transducer assembly in which a plurality of transducers extending in a first direction intersecting an axial direction of an insertion part are arranged in a curved shape; an observation window provided at a proximal end side of the insertion part with respect to the transducer assembly; an imaging module including an imaging optical system including the observation window and an imaging unit that performs imaging through the imaging optical system;and a support member that supports the imaging optics and the imaging unit, wherein an aperture angle of the transducer assembly when viewed in the first direction is 90 degrees or more and less than 180 degrees, an end edge of the transducer assembly in a direction perpendicular to an axis of the insertion part is included in an observation field of view of the observation window when viewed in the first direction, an angle of the observation field of view is equal to or smaller than the aperture angle, the support member includes a hole portion into which the imaging optics is inserted and a side surface surrounding the imaging unit, and a gap is formed between the side surface and the imaging unit.

Embodiments of the present invention provide an ultrasonic endoscope and a medical device. The ultrasonic endoscope has an insertion portion, which includes a main body, an ultrasonic probe, a connector, and an ultrasonic cable bundle connecting the ultrasonic probe. The proximal end of the ultrasonic probe is inserted into the distal end of the main body. The connector passes through the portion where the proximal end of the ultrasonic probe and the distal end of the main body are inserted to fix the ultrasonic probe and the main body. The ultrasonic cable bundle is split by the connector to form a first ultrasonic cable bundle and a second ultrasonic cable bundle, which are inserted from the distal end of the main body. This design makes full use of the relatively small space within the main body, eliminating the need to reserve a separate space within the main body for the ultrasonic cable bundle. Furthermore, the connector not only fixes the main body and the ultrasonic probe but also splits the ultrasonic cable bundle. This results in a more compact structure within the main body and / or the ultrasonic probe, with higher space utilization, thereby reducing its overall size.

An access device used with an endoscope includes an access pipe configured to be inserted into a sheath of the endoscope, a piercer disposed on a distal end portion of the access pipe and configured to pierce into a hollow organ through a digestive tract of a patient, and a treatment tool configured to be inserted into the access pipe and to be introduced into the hollow organ by the piercer. The access device is switchable between a first configuration and a second configuration. In the first configuration, a piercing function of the piercer is switched on, so that the piercer pierces the digestive tract and the hollow organ to enter into an interior of the hollow organ, and in the second configuration, the piercing function of the piercer is switched off, the piercer is kept connected to the interior of the hollow organ.

In an ultrasonic endoscope system equipped with an ultrasonic endoscope according to the present invention, a control circuit performs control on a transmission circuit so as to cause one and the other different sets of ultrasonic vibrators to simultaneously transmit either an ultrasound generating transmission signal for generating an ultrasonic image or a polarization processing transmission signal for performing a polarization process, so that the polarization process and a transmission / reception process of ultrasonic waves are performed simultaneously by different sets of ultrasonic vibrators. With this configuration, it is possible to provide an ultrasonic endoscope system and a ultrasonic endoscope system operating method that enable, while an ultrasonic image is being acquired through transmission of ultrasonic waves and reception of reflection waves thereof using one set of ultrasonic vibrators, performing the polarization process simultaneously by the other set of ultrasonic vibrators which are not conducting transmission of ultrasonic waves for acquiring an ultrasonic image, by using an existing transmission circuit.

The present invention relates to a gastroenterology ultrasonic endoscopic puncture biopsy needle, comprising a needle tip and a needle body. The needle body adopts a hollow cylindrical structure, with an open slot provided at the front end of the needle body, and side blades provided on the two axial surfaces of the open slot. The needle tip is composed of three or four pointed bodies, with a concave arc-shaped leading edge provided between each two adjacent pointed bodies. The open end of the open slot is located between two of the pointed bodies, and there is no leading edge between the two pointed bodies. The base of each pointed body has a micro-deformation structure. The puncture biopsy needle adopts a needle tip structure with micro-deformation, which can accommodate larger tissues and increase the friction force after the sampled tissue strip is squeezed, thereby achieving the purpose of successful one-time sampling.

The invention discloses an ultrasonic endoscope transducer based on a lead-free piezoelectric ceramic material as well as a preparation method and application of the ultrasonic endoscope transducer. The ultrasonic transducer comprises an acoustic backing layer, a lead-free piezoelectric layer, an acoustic matching layer and a coaxial wire, the lead-free piezoelectric layer is made of lead-free piezoelectric ceramic or a lead-free piezoelectric ceramic composite material; according to the method, the matching layer is prepared by adopting a spin-coating method, so that the method has huge advantages in preparation of a micron-sized matching layer, and a new way is provided for preparation of the matching layer of the high-frequency ultrasonic transducer. A gradient matching material is used as an acoustic matching layer, and materials with low, medium and high acoustic impedances are prepared as the gradient acoustic matching layer, so that the sensitivity and the bandwidth can be effectively improved, and the performance of the transducer is improved; the lead-free piezoelectric ceramic and the lead-free piezoelectric ceramic composite material used for preparing the piezoelectric layer of the ultrasonic transducer have the advantages of being thin in thickness, high in dielectric constant, high in piezoelectric coefficient and the like, the amplitude is high, the sensitivity is high, the relative bandwidth is large, and the imaging effect of an ultrasonic endoscope system is greatly improved.

An ultrasound endoscope includes an insertion part including a distal end part having an ultrasound transducer array of ultrasound transducers, a cable inserted into the insertion part, and a substrate, including electrode pads, that electrically connects the ultrasound transducers and the cable, and is disposed in the distal end part. The cable has a non-coaxial cable including a first cable bundle consisting of signal wires and ground wires, and a first shield layer with which the first cable bundle is coated, and an outer coat with which a second cable bundle consisting of the non-coaxial cables is coated. Each first cable bundle is individually led out from the cable, and each signal wire of the first cable bundle is led out and electrically bonded to the corresponding electrode pad. The ultrasound endoscope further includes a fixing part that fixes relative positions of the substrate and each first cable bundle.

To provide an ultrasonic endoscope and its distal end unit capable of depicting an ultrasonic image at the proximal end of an ultrasonic transducer.SOLUTION: The outer peripheral surface of the distal end portion main body (distal end rigid portion 34) includes a first surface (continuous flat surface 90) that is provided on the proximal end side of the ultrasonic transducer (50) and extends along the longitudinal axis (38) of the insertion section (12), a second surface (convex surface 84) that is provided on the proximal end side of the first surface and is located on one side of a first direction perpendicular to the longitudinal axis with respect to the first surface, and a stepped surface (85) that connects the proximal end side of the first surface and the distal end side of the second surface, in a case where a first intersection point is an intersection point between a tangential line which is in contact with the ultrasonic transducer and is in contact with the stepped surface at a position closest to the one direction side with respect to the stepped surface and the ultrasonic transducer, the first intersection point is included in a range of one third of the effective angle on the proximal end side.SELECTED DRAWING: Figure 6

The invention provides an image mixed noise self-adaptive suppression method and device of an ultrasonic endoscope, which are applied to electronic equipment in the ultrasonic endoscope, and the ultrasonic endoscope comprises the electronic equipment and a probe. The method comprises: controlling a probe to collect an ultrasonic image of an object lung area; performing noise feature extraction on each local image in the ultrasonic image to obtain a first feature, a second feature and a third feature of each local image; for each local image, correcting the first feature and the second feature by using a depth value of each pixel point in the local image, a depth gain compensation relationship and a lung ultrasonic signal attenuation relationship; determining a noise classification result of the target local image with noise based on the third feature of each local image and the corrected feature; determining a noise reduction scheme of each target local image by using the noise classification result of each target local image; and performing noise reduction on each target local image by using each noise reduction scheme. The denoising effect of the ultrasonic image can be improved.

An ultrasound endoscope includes: a balloon suction duct that is provided inside an insertion portion and that is where liquid inside a balloon is suctioned through, the balloon covering an ultrasound transducer positioned at a distal end of the insertion portion; a rigid portion that includes a balloon groove and an end surface positioned at an end portion of the rigid portion, the end portion being on a distal end side of the balloon groove, the end surface being a surface intersecting a longitudinal direction of the insertion portion, the end surface having an opening formed thereon, the opening communicating with the balloon suction duct; and a holder that is positioned on a distal end side of the rigid portion, the holder being configured to hold the ultrasound transducer.

An endoscope system includes an ultrasonic endoscope configured to capture ultrasound images; and a processor. The processor is configured to cause a display device to display position information and type information of a region of interest in B-mode images of the ultrasound images such that the position information and the type information are superimposed on the ultrasound images; and change a position at which the position information is to be displayed in accordance with a change in a position of the region of interest over time, and maintain a position at which the type information is to be displayed regardless of the change in the position of the region of interest over time.

The invention discloses an ultrasonic endoscope which comprises a head end section, and the head end section comprises a head end base, a first camera module and a first lighting module are arranged at the far end of the head end base; included angles are formed between the shooting direction of the first camera module and the axial direction of the head end seat and between the lighting direction of the first lighting module and the axial direction of the head end seat; the ultrasonic probe comprises an ultrasonic probe shell connected to the far end of the head end seat, an ultrasonic transducer connected to one side of the ultrasonic probe shell and used for transmitting and receiving ultrasonic waves, and a second camera module connected to the interior of the ultrasonic probe shell; and a shooting window of the second camera module is positioned at the far end part of the ultrasonic probe shell. Due to the fact that the second camera module can obtain the view right in front of the head end section, a larger view can be formed in cooperation with the first camera module and the first lighting module which are arranged on the head end base and used for lateral shooting and lighting, and the view blind area of the ultrasonic endoscope in the bronchus or other natural hole channels during shooting is reduced; the difficulty of inserting the endoscope body into the bronchus of the human body is reduced and the controllability of the endoscope body is improved.

The invention discloses an adaptive method for removing ringing artifacts in single-element endoscopic ultrasonic based on time-frequency analysis filtering. Steps: obtain original data of endoscopic single-element ultrasonic imaging, perform time-frequency spectrum analysis on adjacent frame signals; determine mutation of the time-frequency spectrum of the signal to be processed relative to reference signal by using an optical flow method; determine a threshold coefficient and spectral distribution factors to set parameters of a time-frequency filter; perform time-frequency filtering on the signal to be processed, and then perform time-domain recovery; calculate index of filtered and original data, and optimize and adjust threshold parameters based on whether index meets standard; perform time-frequency filtering, time-domain reconstruction, and ultrasonic endoscopic image reconstruction. The method nearly eliminates ringing artifacts, restores effective echo signals, and maintains structural integrity during close-range imaging.

Provided is a balloon for an ultrasonic endoscope in which an ultrasound oscillator surface of an ultrasound transducer can be most swollen.A balloon for an ultrasonic endoscope that is mounted to cover an outside surface of an ultrasound transducer provided in a distal end part body on a distal end side of an insertion part includes a bottomed tubular balloon body that has an opening portion provided at one end in a first direction corresponding to a longitudinal direction of the insertion part and attached to the distal end part body, covers an oscillator surface of the ultrasound transducer, and stores an ultrasonic wave transmission medium inside, to be swellable, and a swelling restricting part that, in a case where the ultrasonic wave transmission medium is stored inside the balloon body, makes an oscillator surface region facing the oscillator surface of the ultrasound transducer most swollen by restricting a part of the balloon body.

A photoacoustic-ultrasonic endoscope includes a probe and a driving unit providing rotational power and pullback translational motion to the probe, wherein the probe includes a catheter tubing extending in one direction and having an interior that is hollow, one end of the catheter tubing being closed and the other end of the catheter tubing being open, a fastening nut that is fastened to the other end of the catheter tubing and has a through hole corresponding to the interior of the catheter tubing, a pullback shaft extending into the interior of the catheter tubing through the through hole of the fastening nut and having an interior that is hollow, and a radial shaft seal interposed between the fastening nut and the pullback shaft and surrounding the pullback shaft around a central axis of the through hole of the fastening nut.

To provide an ultrasonic endoscope capable of bringing an optical axis of an imaging part close to a direct viewing direction and capable of reducing a diameter of the endoscope.SOLUTION: An ultrasonic endoscope 1 includes: a tip 34 disposed on a tip side of an insertion part extending along a longitudinal axis direction; an ultrasonic transducer 50 provided at the tip 34 for emitting an ultrasonic wave toward one side in a first direction orthogonal to a longitudinal axis direction; and an imaging part 300 arranged more on a proximal end side than the ultrasonic transducer 50. The tip 34 includes a first region 150 where the ultrasonic transducer 50 is provided, and a second region 160 disposed more on a proximal end side in the longitudinal axis direction than the first region 150 where the imaging part 300 is provided. A bottom surface part 54A of the first region 150 and a bottom surface part of the second region 160 are arranged on the other side opposite to the one side in the first direction. The bottom surface part 54A is arranged more on the other side in the first direction than the bottom surface part 112A.SELECTED DRAWING: Figure 4

The invention discloses an optical fiber ultrasonic endoscope of an array type detector and a preparation method of the optical fiber ultrasonic endoscope, and belongs to the field of ultrasonic endoscopic imaging. Comprising an optical fiber ultrasonic transmitter, an optical fiber ultrasonic detector and a clamp. The part, close to the end face, in the optical fiber ultrasonic transmitter is of a conical structure, and the conical structure is combined with an excitation film based on the photoacoustic effect to form a circular-ring-shaped ultrasonic excitation unit. In the optical fiber ultrasonic detector, a dielectric mirror and a sensing film are utilized to form a Fabry-Perot (F-P) interference cavity which is used for ultrasonic detection. The optical fiber ultrasonic transmitter penetrates through the hollow structure of the clamp, the array type optical fiber ultrasonic detector is fixed in the groove in the periphery of the clamp, and the optical fiber ultrasonic endoscope of the array type detector is formed. The optical fiber conical structure is combined with the excitation film to achieve annular ultrasonic excitation, the clamp is used for forming the array type optical fiber ultrasonic detector to achieve annular ultrasonic detection, the optical fiber ultrasonic endoscope of the array type detector is formed, and the optical fiber ultrasonic endoscope can be applied to rapid imaging of blood vessels or tiny cavities.

The invention discloses an accessory for an endoscope and an ultrasonic endoscope, and relates to the field of ultrasonic endoscopes, the ultrasonic endoscope comprises an endoscope body, the endoscope body comprises an endoscope end, an insertion part tube is arranged at the tail of the endoscope end, an inner sleeve is arranged on the endoscope end, a tube sleeve is rotatably arranged in the inner sleeve, and the tube sleeve is connected with the endoscope end. An end cover A is arranged at the head of the endoscope end, an ultrasonic end and an end cover B are arranged on the outer surface of the end cover A, and a through hole is formed in the end cover B. According to the invention, the defects in the prior art are overcome, another usable pipeline can be conveniently provided under the condition that the pipeline is blocked by utilizing the replaceable operation of a medium inlet channel and a medium outlet channel, and corrosion or damage in the pipeline caused by long-term retention of blockages in the pipeline is avoided, so that the pipeline has higher social use value and application prospect.

One aspect of the present invention provides an endoscope system capable of appropriately displaying the recognition results of a region of interest. [Solution] An endoscope system according to one aspect of the present invention is an endoscope system comprising a processor and an ultrasound endoscope capable of capturing ultrasound images, wherein the processor is capable of displaying on a display device the position information and type information of the region of interest in the B-mode image of the ultrasound image superimposed on the ultrasound image, and the position in which the position information is displayed changes in accordance with the change in the position of the region of interest over time, while the position in which the type information is displayed is maintained regardless of the change in the position of the region of interest over time.

An access device used with an endoscope includes an access pipe configured to be inserted into a sheath of the endoscope, a piercer disposed on a distal end portion of the access pipe and configured to pierce into a hollow organ through a digestive tract of a patient, and a treatment tool configured to be inserted into the access pipe and to be introduced into the hollow organ by the piercer. The access device is switchable between a first configuration and a second configuration. In the first configuration, a piercing function of the piercer is switched on, so that the piercer pierces the digestive tract and the hollow organ to enter into an interior of the hollow organ, and in the second configuration, the piercing function of the piercer is switched off, the piercer is kept connected to the interior of the hollow organ.

Provided herein are methods and systems of transplant cells and growing an ectopic tissue in a lymph node of a subject. In certain embodiments, the methods and systems provided herein enable minimally invasive cell transplantation to treat patients in need thereof. In certain embodiments, the methods and systems provided herein include the use of ultrasound endoscopy.

An ultrasound endoscope includes an ultrasound transducer unit provided at a distal end of the ultrasound endoscope. The ultrasound transducer unit includes: an ultrasound transducer configured to transmit and receives an ultrasonic wave; and a housing that includes a housing portion to house the ultrasound transducer, the housing portion including a plurality of protrusions configured to position the ultrasound transducer, each protrusion being arranged to face a rear surface on an opposite side to a transceiving surface of the ultrasonic wave of the ultrasound transducer, the protrusions being arranged to be across a longitudinal axis of the housing from one another.