43 results about "Echo endoscopie" patented technology

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 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.

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.

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 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.

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.

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.

A front end assembly, an insertion portion, and an ultrasonic endoscope, relating to the technical field of medical instruments. The front end assembly is used in the ultrasonic endoscope. The front end assembly comprises a front end base and a camera module. The proximal end of the front end base is provided with an instrument channel. A wall surface of the proximal end of the instrument channel is of an inclined structure. The camera module is located above the inclined structure, a first gap is formed between the camera module and the inclined structure, and the height of the distal end of the first gap is less than the height of the proximal end of the first gap. In the front end assembly, on the premise of ensuring the mounting reliability of the camera module, the radial size of the front end base can be reduced, facilitating the insertion of the insertion portion into the channel.

1. Name of the product in this design: Ultrasonic Endoscope. 2. Purpose of this design: For human gastrointestinal examination. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The embodiment of the present application provides an ultrasonic endoscope and a head end thereof. The head end of the ultrasonic endoscope comprises a head end seat, a lifting forceps and an ultrasonic probe. The head end seat is internally formed with a receiving cavity, and the receiving cavity has an instrument outlet. The lifting forceps is accommodated in the receiving cavity and is used for supporting a treatment instrument and controlling the direction of the treatment instrument extending out of the instrument outlet. The treatment instrument comprises a first instrument with a larger diameter. The receiving cavity comprises a first side wall. In a lateral projection plane parallel to the axial direction of the head end seat and parallel to a first direction, a detection area of the ultrasonic probe overlaps the first side wall. The lifting forceps is configured such that when the first instrument extends out of the instrument outlet and the distal end of the first instrument protrudes out of the first side wall while the lifting forceps is in a laid position, at least part of the first instrument is located in the overlapping area, and the first direction is perpendicular to the axial direction. Thus, the situation that the first instrument is miscontacted or scratches the tissue in the patient's body due to invisibility during the extension process is effectively avoided.

The embodiment of the utility model provides an ultrasonic endoscope and medical equipment. The ultrasonic endoscope is provided with an insertion part, the insertion part comprises a main body, an ultrasonic probe, a connecting piece and an ultrasonic wire harness connected with the ultrasonic probe, the near end of the ultrasonic probe and the far end of the main body are mutually inserted, and the connecting piece penetrates through the inserted part of the near end of the ultrasonic probe and the far end of the main body to fix the ultrasonic probe and the main body. The ultrasonic wire harness is split by the connecting piece to form a first ultrasonic wire harness and a second ultrasonic wire harness, and the first ultrasonic wire harness and the second ultrasonic wire harness penetrate from the far end of the main body. A small space in the main body can be fully utilized, so that a space for penetrating an ultrasonic wire harness does not need to be independently reserved in the main body. Moreover, the connecting piece not only can play a role in fixing the main body and the ultrasonic probe, but also can play a role in splitting the ultrasonic wire harness. Therefore, the structure in the main body and / or the ultrasonic probe is more compact, and the space utilization rate is higher, so that the boundary dimension can be reduced.

The utility model discloses an ultrasonic probe, an ultrasonic endoscope head end device and an ultrasonic endoscope, the ultrasonic probe comprises a probe shell and an ultrasonic transducer arranged on the probe shell, the probe shell is provided with a fixing part used for being connected with a head end seat of the ultrasonic endoscope; the water bag sealing ring mounting part is used for being sleeved with a water bag sealing ring, the water bag sealing ring mounting part is concaved in the surface of the fixing part in the position, corresponding to a camera on the head end base, in the circumferential direction of the head end base so as to form a groove, and at least part of the water bag sealing ring is arranged in the groove; and the part, corresponding to the groove, of the water bag sealing ring in the circumferential direction does not appear in the view field of the camera. Due to the existence of the groove, the part, corresponding to the groove, of the water bag sealing ring in the circumferential direction of the water bag sealing ring moves downwards in the radial direction relative to the camera, the part, corresponding to the groove in the circumferential direction of the water bag sealing ring, of the water bag sealing ring does not appear in the view field of the camera, and the image overexposure phenomenon of the ultrasonic endoscope can be reduced.

This invention discloses an all-fiber ultrasonic endoscope and imaging system, belonging to the field of ultrasonic endoscopic imaging. It includes a guide fiber, a dielectric mirror, a sensing film, a heat-insulating film, an excitation film, a focusing acoustic reflector, and a lateral guide tube. Excitation laser light passes through the dielectric mirror, sensing film, and heat-insulating film, is absorbed by the excitation film, and generates ultrasonic waves, which are then transmitted laterally out of the endoscope through the lateral opening of the lateral guide tube. The Fabre-Perot cavity formed by the dielectric mirror causes multi-beam interference of the signal light, modulating the ultrasonic wave signal laterally transmitted into the endoscope onto the intensity of the interference light. This invention forms an integral structure by sequentially covering the end face of the guide fiber with the dielectric mirror, sensing film, heat-insulating film, and excitation film, and then fixing the guide fiber, focusing acoustic reflector, and lateral guide tube together. This reflects the ultrasonic waves propagating along the guide fiber to the side, allowing the fiber optic ultrasonic endoscope to simultaneously achieve lateral excitation and lateral detection of ultrasonic waves using a single optical fiber.

The invention provides a dynamic impedance compensation method and device for an ultrasonic endoscope motor, and the method and device are applied to electronic equipment in an ultrasonic endoscope, and the ultrasonic endoscope comprises the electronic equipment, a probe, an ultrasonic motor used for driving the probe to move, and a data collection assembly. The method comprises the steps that under the condition that a probe stretches into a detected object, the probe is controlled to acquire an ultrasonic signal sequence in the detected object, and a data acquisition assembly is controlled to acquire a working voltage value and a working current value of an ultrasonic motor; determining that the impedance of the ultrasonic motor exceeds a preset impedance range based on the working voltage value and the working current value; determining a load type according to a signal fluctuation condition of the ultrasonic signal sequence; determining an impedance adjustment coefficient based on the load type; determining a new working parameter by using an offset between the impedance and a preset impedance range and an impedance adjustment coefficient; and controlling the ultrasonic motor to drive the probe to move according to the new working parameters to realize impedance compensation of the ultrasonic motor. The reliability of the ultrasonic endoscope can be improved.

The utility model provides an ultrasonic probe catheter, an ultrasonic endoscope examination assembly and a biopsy sampling assembly, the ultrasonic probe catheter comprises an outer sheath tube, an ultrasonic transducer and a flexible shaft, a penetrating channel is arranged in the outer sheath tube, the flexible shaft is connected with the ultrasonic transducer, and the ultrasonic transducer and the flexible shaft are installed in the penetrating channel; the outer sheath tube is provided with a far end and a near end, the ultrasonic transducer is located at the far end of the outer sheath tube, and the far end of the outer sheath tube is used for stretching into a human body so that the ultrasonic transducer can detect the human body; a plurality of marks are arranged on the outer surface of the near end of the outer sheath tube, and the marks are arranged at intervals in the axial direction of the outer sheath tube. According to the ultrasonic probe catheter, the operation time of examination can be greatly shortened, the accuracy of focus positioning is improved, the probability of occurrence of complications of patients is reduced, the operation efficiency of doctors is improved, and the positive diagnosis rate of biopsy sampling is improved.

The invention discloses a lateral focusing type optical fiber ultrasonic endoscope, and belongs to the field of ultrasonic endoscopic imaging. Comprising a front-end shell, a guide optical fiber, an ultrasonic detector, a sound absorption layer, a light-induced ultrasonic transducer and a slope support. The ultrasonic detector is located at the end of the guide fiber; the sound absorption layer is positioned below the ultrasonic detector in the front-end shell; the light-induced ultrasonic transducer is of a focusing structure and is fixed to the slope support. When the excitation laser in the optical fiber is transmitted to the light-induced ultrasonic transducer, the lateral focusing ultrasonic waves are excited; the to-be-detected object reflects the ultrasonic waves and then is received by the ultrasonic detector. According to the lateral focusing type optical fiber ultrasonic endoscope, single-optical-fiber excitation laser transmission and ultrasonic detection are achieved through the guiding optical fiber, ultrasound is excited through the light-induced ultrasonic transducer of the focusing structure, and the lateral focusing type optical fiber ultrasonic endoscope has the advantages of being wide in frequency band, large in sound pressure, high in resolution ratio, small in size and the like.

Provided are an ultrasonic endoscope in which the strength and durability of a distal end part of the endoscope are ensured and a method for assembling an ultrasonic endoscope. An ultrasonic endoscope (1) comprises: a first load receiving structure (110) provided with a distal body block part (260) to which an ultrasonic transducer (50), an observation optical system (40), and an illumination optical system (44) are attached, and a channel block part (70) to which a channel for insertion of a treatment instrument is attached and which receives a load from the distal body block part (260); and a second load receiving structure (120) in which the distal body block part (260) receives a load from the channel block part (70). The present invention is also a method for assembling the ultrasonic endoscope (1).