58 results about "Endoscopic biopsy" patented technology

A valved plug to be fitted on a mouth piece at an inlet opening of an endoscopic biopsy channel. The plug as a whole is formed of a resilient material, and has, at the opposite ends of a foldable connecting strip or string, a generally tubular main body portion which is provided with a constricted portion in its axial passage, and a valved nesting piece which is adapted to be detachably coupled with the main body portion and provided with a normally closed slit valve axially in an aligned position relative to the constricted passage on the side of the main body portion. The main body portion is provided with an inward interlocking projection of a predetermined thickness at its outer end, for tight interlocking engagement with an interlocking groove which is provided on the side of the nesting piece in such a way as to grip the interlocking projection tightly in a compressed state.

Exemplary embodiments of apparatus, method and system for determining a position on or in a biological tissue can be provided. For example, using such exemplary embodiment, it is possible to control the focus of an optical imaging probe. In another exemplary embodiment, it is possible to implement a marking apparatus together with or into an optical imaging probe. According to one exemplary embodiment, it is possible (using one or more arrangements) to receive information associated with at least one image of at least one portion of the biological tissue obtained using an optical imaging technique. Further, it is possible to, based on the information, cause a visible change on or in at least location of the portion(s) using at least one electro-magnetic radiation.

The present invention discloses one kind of spectral-domain optical coherent tomography endoscopic image system for in vivo optical biopsy, and the system includes one fiber optical interferometer, one imaging probe, one detection unit, one image acquiring card and one computer. The detection unit has grating spectrograph for high imaging speed, and the imaging probe has axial axicon lens and inside rotating right angle prism or circularly symmetric beam splitter combined to ensure high transverse resolution in the whole depth range, so as to realize circularly scanning endoscopic imaging. The present invention proposes two embodiments of circularly scanning probe and their corresponding system structures. The present invention may be applied in the optical endoscopic biopsy and analytic study of oral cavity, respiratory tract, gastrointestinal tract, etc.

A balloon anchor for use with an endoscopically inserting ultrasound probe having an ultrasound transducer element accommodated in an ultrasound scanner head at the fore distal end of a flexible cord to be placed in an endoscopic biopsy channel. The balloon anchor includes an anchor tube which is adapted to be fitted in the endoscopic biopsy channel in such a way that it is partly projected from fore distal end of the endoscopic biopsy channel. Connected to the projected fore end of the anchor tube is a balloon support member of a larger diameter as compared with the endoscopic biopsy channel. A passage of a large diameter is formed axially through the anchor tube and through the balloon support member. A balloon stopper portion is provided on the outer periphery of the balloon support member to anchor a resilient ring of a balloon therein.

A method to perform an endoscopic biopsy includes deploying a mechanical forceps through an accessory channel of an endoscope assembly, deploying an optical probe through the accessory channel to an area of investigation, optically evaluating tissue at the area of investigation, actuating the mechanical forceps to grasp a sample of the tissue, and retrieving the mechanical forceps and the optical probe through the accessory channel of the endoscope assembly. A biopsy apparatus includes a delivery conduit, an optical probe configured to investigate the tissue upon a distal end of an optical conduit extending through the delivery conduit, and a forceps assembly slidably engaged over the optical conduit, the forceps assembly comprising jaws configured to operate between a closed position and at least one open position, wherein the jaws of the forceps are urged into the closed position as the forceps are retracted within the delivery conduit.

The present invention relates to an endoscopic biopsy forceps (10) with an open central channel. The forceps include a sheath (20) having a proximal end and a distal end, a housing (50) connected with the distal end of the outer sheath, an open channel actuator control means (30) having a proximal end and a distal end and passing through the sheath, an operating means attached to the proximal end of the open channel actuator means, an open channel actuator (60.) attached to a distal end of the open channel actuator control means and having a first projection and second projection, a first jaw (40) having an actuator engagement projection and having a first position and a second position, and a second jaw having an actuator engagement projection and a first position and a second position. The first jaw and second jaw are movably connected to the housing, and when the open channel actuator is moved longitudinally along a body of the instrument, the first jaw moves between the open position and the closed position.

A notched tissue-collection needle configured similarly to a fine-needle-aspiration needle is provided with a cutting edge disposed in the notch and configured to excise tissue into the notch for collection. A stylet may be provided through a lumen of the needle during introduction into a patient body. The needle may be provided with echogenicity-enhancing features. A coated-wire sheath through which the needle is slidably disposed includes an overcoating that is thicker along a distal length and thinner along a proximal length.

An endoscopic biopsy system comprising a means for drawing a sample to be sealed, separated, and / or collected towards an instrument, such as a structure that includes one or more of: an extendable wire, an extendable mast, an extruded tube with at least one opening and a vacuum therein, a pivot point, a hinge, and a mounting block. The system should have a means to transfer energy to a sample after a sample is grasped, such as a conducting wire or an anvil. The system should also have an airtight means to remove a separated sample from a biopsy site for analysis, such as a collection bag or an internal vacuum suction system. The endoscopic biopsy system can be used in a method of obtaining a biopsy from the thoracic cavity that includes a step of insufflating gas to induce pneumothorax and collapse a lung.

The invention relates to a software for daily concerns management in pathology department of a hospital and for assisting a doctor to made a fast and regularized diagnosis. The software is characterized in that tasks in the pathology department are systematically managed and various report databases on conventional pathology, cytology, liquid-based cytology and intraoperative freezing, and the like are integrated. An input mode for filling a small number of data and taking selection primarily facilitates the input operation. The software underscores providing various formative available templates and table templates for endoscopic biopsy and standard tumor reports; past examination documents of a patient are also provided; a database for disease diagnosis key points and pictures provides a diagnosis reference and fast-paste diagnosis description; tumor ICD-0 codes and corresponding standard diagnosis names are systematically provided so as to facilitate data organization; real-time diagnosis prompt after the diagnosis is made prevents diagnosis faults to a certain extent; and the programs are designed to assisting the doctor to made a fast and regularized pathology report.

Mounted internally of a casing of a manipulating head assembly of an endoscope is a branching passage member to connect a base end of a biopsy channel with a biopsy channel entrance way and a suction passage. The branching passage member is retained in position by threaded engagement with a biopsy channel entrance pipe which is fitted in the biopsy channel entrance way. Further, the branching passage member is provided with restrictive members thereby to restrict movements of the branching member except a movement toward the biopsy channel entrance pipe when the branching member is pulled into the biopsy channel entrance way for engagement with the entrance pipe.

An endoscopic biopsy instrument (1) is disclosed comprising a guide wire (2) arranged in a sheath (3), a drill device (5) arranged at a first end (4) of said guide wire (2), and an actuator (11) for actuating said drill device (5), said actuator being arranged at a second end (10) of said guide wire (2). The drill device (5) comprises an outer tube (6) and an inner cutting device (7). The inner cutting device (7) is slidable and rotatable inside said outer tube (6). The inner cutting device (7) has a helical cutting edge (8). An endoscope comprising such an endoscopic instrument (1) is also disclosed, as well as a method for taking a biopsy sample from a tissue of a subject.

The invention discloses a separable bracket pushing system which is used for pushing a bracket into a diseased part of a human body. The separable bracket pushing system comprises a separable bracket pusher and a fixer, wherein the separable bracket pusher comprises a pusher main body, an outer sleeve and two pull rings; the pusher main body comprises a pusher head, a pusher middle part and a pusher tail; a line guide passage is arranged along the central axis of the pusher head, the central axis of the pusher middle part and the central axis of the pusher tail; the outer walls of two ends of the pusher middle part are respectively coated with an annular metal layer; the outer sleeve is shaped as a hollow tube; the tail of the outer sleeve is symmetrically separated into two parts along the axial direction; the two separated parts are respectively connected with the two pull rings; two longitudinal separation lines are reserved at the junction line of the two separated parts; the fixer comprises an endoscope fixer and a pusher fixer; the endoscope fixer is used for fixing an endoscope, and the pusher fixer is used for fixing the pusher main body in an endoscopic biopsy hole of the endoscope.

The invention discloses a biopsy cap used for closing an endoscope biopsy channel. The one-way valve that is provided with in the biopsy cap. The valve body of the one-way valve is connected on the biopsy cap by pins. When the biopsy equipment is inserted into the biopsy cap, force will be applied to the one-way valve, and the one-way valve will open; when the biopsy equipment is withdrawn, the pressure of the gas in the human gastric cavity and intestinal cavity will automatically close the one-way valve. Thereby reducing human manual operations and effectively preventing gas or liquid splashing in the body cavity. A slender channel is attached to the inner edge of the biopsy cap. The upper end of the channel extends out of the biopsy cap, and the lower end of the channel is inserted into the biopsy channel and extends to its opening. Biopsy and drug or lotion can be injected at the same time, which solves the problem of the original biopsy and injection. Problems with medicines or lotions that don't work together.

The invention discloses an endoscopic biopsy apparatus which comprises a handle assembly, an outer tube, a limiting piece, a needle tubing and an inner core wire. The handle assembly is composed of an adjustment handle, an outer tube handle, a limiting ring, an operation handle, a scale core rod, a needle tubing operation handle and an inner core wire control handle. The adjustment handle, the limiting ring and the operation handle are all arranged on the scale core rod and connected into a whole through the scale core rod. The outer tube handle is arranged in the adjustment handle and connected with the outer tube. The outer tube is connected with the scale core rod. The needle tubing operation handle is connected with the operation handle in a screwed mode. The operation handle is connected with the limiting piece in an inserted mode. The needle tubing is composed of a needle point section at the far end and a needle body section behind the needle point section. The needle tubing is located in the outer tube. The needle point section penetrates out of the far end of the outer tube. The needle body section is fixedly connected with the needle tubing operation handle. The inner core wire penetrates into the needle tubing. The far end of the inner core wire goes beyond the needle point end, and the near end of the inner core wire is connected with the inner core wire control handle. The biopsy operation is greatly simplified, the success rate and safety of operation are improved, operators can be easily trained, and wide promotion is easy.

Embodiments of the present disclosure are directed to systems and methods for acquiring a tissue sample in an endoscopic procedure. In one implementation, a biopsy needle is provided. The biopsy needle includes an elongated body extending along a longitudinal axis. The elongated body includes a lumen extending therethrough and a distal end. The distal end includes at least two tines and a plurality of cutouts. Each of the tines includes two ground bevels formed on two grind planes. Each cutout resides between two adjacent tines and includes a V-shaped section. Each cutout may further include a longitudinally straight section.

The invention discloses an automatic sampler of a specimen taken by biopsy forceps. The automatic sampler is used for sampling and storing human tissue obtained by biopsy forceps. The automatic sampler comprises an automatic paper discharge device for automatically discharging a specimen adsorption test paper and cutting the test paper so that the test paper has the fixed size, a specimen conveying device for conveying the specimen adsorption test paper with a specimen into a specimen bottle, and a specimen bottle storage disk for conveying a specimen bottle with the specimen to a scheduled station. The invention also discloses an automatic sampling method. The method comprises automatic sampling, automatic loading and automatic labeling. The sampler and the sampling method corresponding to the sampler reduce labor and nurse endoscopic biopsy working pressure. The sampling process is finished only through the machine and computer programs. The printed specimen label is completely consistent to the biopsy site so that artificial writing errors after patient multiple-site biopsy are avoided.

The invention belongs to the technical field of medical equipment, and particularly relates to an endogastric biopsy Raman image auxiliary diagnosis method and system based on artificial intelligence. The artificial intelligence technology is applied to gastroscope stimulated Raman scattering endoscopic biopsy tissue image auxiliary diagnosis for the first time, and the method comprises the step: after histopathology image information is obtained by means of the stimulated Raman scattering microimaging technology, adopting the image classification and image omics data analysis based on a deep learning neural network and machine learning, and constructing an endogastric biopsy Raman image auxiliary diagnosis system. The system comprises a stomach tissue Raman image data preprocessing module, a neural network model, an algorithm module for training the neural network model, a neural network fine tuning module and a test module; compared with an existing traditional endoscope diagnosis and treatment system, the system has the advantages that real-time, rapid and intelligent diagnosis support in the endoscope examination process is achieved, and pathologists do not need to conduct explanation.

A pair of manipulator-type endoscopic biopsy forceps relates to instruments and equipment for medical diagnosis, in particular to a pair of living tissue sampling forceps used for endoscopic examination and endoscopic surgery. The pair of manipulator-type endoscopic biopsy forceps comprises a forceps head, a control steel cable, a flexible outer pipe and an operating rod, as well as a manipulator consisting of both a swinging arm joint and a swinging arm, wherein the swinging arm joint is a slider crank mechanism consisting of a swinging arm base, a rotary base, a slider and a connecting rod; the swinging arm base, a swinging arm shaft and a connecting rod shaft constitute a crank of the slider crank mechanism; the rotary base is connected to a fixed base; the fixed base is connected to the operating rod through a flexible inner pipe; axial sliding of a swinging arm operation slip ring relative to the operating rod is conveyed to the slider of the slider crank mechanism through the flexible outer pipe; and the slider is connected to the swinging arm base through the connecting rod, drives the swinging arm base to rotate on the swinging arm shaft and also drives the swinging arm and the forceps head to swing around the swinging arm shaft. As the manipulator drives the forceps head to swing, and the forceps head rotates around the axis along with the rotary base, 360-degree all-view no-blind-area sampling around the axis of the fixed base can be realized.

The present invention relates in one aspect to an endoscopic biopsy device (1, 2) for collecting multiple samples (10x). The endoscopic biopsy device comprises a tubular body (10) having in an axial direction a distal end and a proximal end, jaws (20, 21, 22) that are hinged to the distal end of the body, wherein the jaws are operable between an OPEN position and a CLOSED position to secure a tissue sample (100), and wherein the jaws in the CLOSED position define a sampling chamber (23); a collecting chamber (13) for receiving multiple samples, the collecting chamber being located within the body in an axial direction proximally adjacent to the sampling chamber; and an axially extending collecting member (30) for transfixing secured samples, the collecting member being axially displaceable between a retracted position in the collecting chamber and a deployed position where the collecting member penetrates into the sampling chamber. The jaws comprise retaining elements (40, 41, 42) arranged to project radially inward on a proximal portion of the jaws. The retaining elements engage when the jaws are in the CLOSED position, thereby separating the sampling chamber and the collecting chamber from each other. The retaining elements disengage when the jaws are in the OPEN position, thereby providing a passage for the transfer of transfixed samples into and out of the collecting chamber.

The invention discloses a push-pull type sterile cell brush provided with a replaceable brush head for an endoscope. The push-pull type sterile cell brush comprises a drainage tube, the brush head, a push-puller and a traction fiber, wherein the brush head is connected to the head of the drainage tube in a detachable way; a cell brush is arranged in the brush head; an opening is formed in the end, far away from the drainage tube, of the brush head; the traction fiber penetrates into the drainage tube, one end of the traction fiber is connected with the cell brush in a detachable way, and the other end of the traction fiber is connected with the push-puller; the cell brush is externally provided with a protective film; the head of the protective film is connected with the brush head, and the tail of the protective film is connected with the tail of the cell brush. The internal cell brush can be used for brushing bacteria living specimens and / or cell samples of an intestinal mucosal surface layer in a living intestinal cavity wall under the condition of being in conjunction with the drainage tube and the push-puller; furthermore, with the protection of the protective film, bacteria / cell brush pollution caused by the pollution to a channel of endoscopic biopsy forceps can be avoided. After the push-pull type sterile cell brush is used, the sterile cell brush head can be replaced, so that the cell brush can be repeatedly used in a germ-free condition; therefore, the collection credibility of samples of all intestinal tract parts can be maintained to the utmost extent while the cost is lowered.

A method to perform an endoscopic biopsy includes deploying a mechanical forceps through an accessory channel of an endoscope assembly, deploying an optical probe through the accessory channel to an area of investigation, optically evaluating tissue at the area of investigation, actuating the mechanical forceps to grasp a sample of the tissue, and retrieving the mechanical forceps and the optical probe through the accessory channel of the endoscope assembly. A biopsy apparatus includes a delivery conduit, an optical probe configured to investigate the tissue upon a distal end of an optical conduit extending through the delivery conduit, and a forceps assembly slidably engaged over the optical conduit, the forceps assembly comprising jaws configured to operate between a closed position and at least one open position, wherein the jaws of the forceps are urged into the closed position as the forceps are retracted within the delivery conduit.

The invention discloses a rigid-flexible integrated crawling actuator applied to a narrow cavity and a working method of the rigid-flexible integrated crawling actuator, relates to the technical fieldof piezoelectricity, can move forwards and backwards in a bent narrow cavity, and is high in precision and quick in response. The rigid-flexible integrated crawling actuator comprises a flexible connecting beam, piezoelectric ceramic pieces and rigid feet. The two ends of the flexible connecting beam are connected with the rigid feet respectively, and the piezoelectric ceramic pieces are arrangedon the upper surfaces of the rigid feet. According to the invention, the flexibility of the flexible connecting beam provides driving pre-pressure for the actuator in the narrow cavity and enables the actuator to move in the narrow cavity with complex bending through flexible connection; and then forward or backward movement of the actuator is achieved through asymmetric friction force generatedduring vibration driving of the rigid feet based on the inverse piezoelectric effect of the piezoelectric ceramic pieces. The actuator is simple and compact in structure, concise and direct in actuation flow, capable of shortening the time used in the actuation process and high in reaction speed, and thus the function of rapid and accurate movement of the actuator in the narrow bent cavity (such as a medical endoscope biopsy channel) can be achieved.

The invention belongs to the technical field of nonlinear optical imaging, and particularly relates to an endogastric biopsy histopathology imaging method based on stimulated Raman scattering. According to the method, the histopathologic image information of stomach biopsy can be obtained in a short time by utilizing the characteristics of rapidness, no processing and no marking of stimulated Raman scattering microimaging. According to the invention, the stimulated Raman scattering microscopy technology is clinically applied to gastroscope endoscopic biopsy for the first time, and compared with the existing traditional histopathology technology, the method has the advantages that the imaging speed is high, the imaging quality is high, pretreatment is not needed, original tissues are noninvasively reserved, and each plane can be imaged within a certain depth.

The invention relates to the field of medical instruments and discloses endoscopic biopsy forceps allowing scale reading, comprising a grip portion, a flexible moving portion ,a first control portion and a head; the grip portion comprises a grip portion body and a second control portion, and the first control portion is connected with the second control portion and is driven by the second control portion to slide relative to the axis of the grip portion body; the head comprises a support frame, an opening-closing portion and a limiting slider, the support frame is provided with a limiting hole, scale marks are arranged on two sides of the limiting hole, and the limiting slider is used for sliding in the limiting hole; the first control portion is connected with the limiting slider to drive the limiting slider to slide and control an opening-closing angle of the opening-closing portion. In the invention, the opening-closing angle of the opening-closing portion is converted into scale on two sides of the limiting hole, and a distance is directly read; the an endoscopic biopsy forceps allowing scale reading are simple to operate, save cost and have a promising application prospect.