31 results about "Fixed Specimen" patented technology

A method and apparatus of automatically reprocessing a specimen for microscopic examination is disclosed. Processing of a specimen for microscopic examination involves fixation of the specimen and preparation of the embedded specimen from the fixed specimen. There are instances where, once a specimen has been processed, it is necessary to reprocess the specimen due to contamination of reagents during processing or inadequate fixation. The system automatically reprocesses a specimen by removing residual embedding material from the specimen with a clearing agent, removing the clearing agent with a dehydrating agent, and removing the dehydrating agent with an aqueous fluid.

A process for maintaining 3 dimensional orientation between a tissue specimen and images of the area of investigation, to register histopathologic diagnoses of multiple locations within the specimen with corresponding locations on the surface of said area of investigation, by marking at least two fiduciary lines on the area of investigation; acquiring a fiduciary image of the tissue with the fiduciary lines; excising the tissue to form a tissue specimen; inserting at least two parallel needles through said specimen; acquiring a specimen image of the specimen with inserted needles over an alignment grid; fixing the specimen by immersing the specimen; acquiring a fixed image of the fixed specimen with the inserted needles over the alignment grid; forming a paraffin mold containing the fixed specimen and inserted needles; injecting different colored inks through the needles while withdrawing them from the fixed specimen, so that different colored needle tracks are formed in the specimen; sectioning the specimen to create specimen blocks having different colored needle tracks; further sectioning the specimen to cut the specimen blocks into specimen slices having different colored ink dots corresponding to the different colored needle tracks; forming pathology images from the specimen slices; performing histopathology analyses on the pathology images; annotating the pathology images with histopathology annotations; aligning the annotations with the fixed image using the colored ink dots; determining shrinkage between the fixed image and the annotations by using the grid to compare the distance between the needles in the fixed image with the distance between the ink dots on the specimen slices; registering the fixed image to the specimen image to account for shrinkage caused by fixation, using locations of the needles in both of the images as landmarks; registering the specimen image to the fiduciary image to account for tissue translation and soft tissue movement using the fiduciary lines and geographical features of said area of investigation as landmarks; registering the fiduciary image to the reference image to account for tissue translation and soft tissue movement using said geographical features; whereby annotations of histopathologic diagnoses are provided for multiple locations on or under the surface of the specimen that are registered to images of the specimen.

The invention relates to a vacuum friction abrasion test device, which comprise a base, wherein a vacuum cover is arranged on the base, a vacuum meter and an inflating valve are arranged on the vacuum cover, a driving motor is arranged in the base, the upper end of a driving shaft of the driving motor is provided with a movable specimen disc, a fixed specimen is arranged above the movable specimen disc in a contact way and is fixed by a fixed specimen clamp, the fixed specimen clamp is arranged on a U-shaped cantilever beam, a loading weight is placed above the fixed specimen clamp, one end of the U-shaped cantilever beam is provided with a balance weight, linear displacement sensors are symmetrically arranged on the U-shaped cantilever beam, a radial feeding system is fixedly arranged on the base, a regulation rotating shaft is arranged above the radial feeding system, and the U-shaped cantilever beam is connected with the regulation rotating shaft through a connecting element. The vacuum friction abrasion test device has the advantages that according to experiment requirements, the data collection and recording of parameters such as friction force and time can be realized in vacuum environment, in addition, curves of the friction coefficient changed along with the time are drawn, the operation of the device is simple, and the use is convenient.

The invention relates to a testing method for the interlaminar shearing stress state, which is a method for evaluating the shearing strength between a cement concrete deck and an asphalt pavement layer. The method can simultaneously acquire the cohesive force C and the friction angle between interfaces by testing once, and is a reasonable testing method for the shearing strength between the cement concrete deck and the asphalt pavement layer. The testing method comprises the following steps: (a) an inclined plane with an inclined angle of 5 degrees-30 degrees, namely a rigid triangular block (8), is arranged in a direction vertical to load application (4); a horizontal force-measuring device (5) is positioned behind the rigid triangular block (8); a loading specimen (1) and a fixed specimen (3) are positioned in a clamp (10); the load vertically applied to the loading specimen (1) is converted into a horizontally applied force to realize application of positive pressure on a shearing interface (2); (b) bearing balls (9) are arranged on the inclined plane to eliminate the effect of the frictional force on the inclined plane to the test result; and (c) based on the testing method, the cohesive force and the friction angle between the interfaces are acquired by calculating with a calculation formula as shown in the specification.

The invention relates to a knee joint dynamic simulation device. The device comprises a hip joint simulation module, a thigh simulation module and a foot fixation module; the hip joint simulation module comprises a weight simulation block, a hip joint vertical sliding pair and a hip joint rotating pair, and is used for simulating the change of the center of gravity of squatting of a human body andhip joint movement; the thigh simulation model comprises a simulated bone plate, a quadriceps femoris connecting part and hamstring muscle connecting part, fixes specimen leg thighbone and is connected with tendons pulling the quadriceps femoris and the hamstring muscle, and is used for simulating the action of the thigh muscle in the squatting process; the foot fixation module is used for fixingthe foot of the specimen leg. By means of the weight simulation block, the device can move under the action of the gravity to bend the knee joint of the specimen leg to reproduce the movement state of the knee joint of the specimen leg, and dynamic simulation of the knee joint is completed.

The invention discloses a plant specimen holder, a specimen cabinet for fixing the specimen holder, and a fixing method for the specimen holder. The plant specimen holder comprises clamping plates which are composed of a left clamping plate and a right clamping plate, wherein a left fixing plate is arranged in the left clamping plate and the a right fixing plate is arranged in the right clamping plate; an upper clamping piece and a lower clamping piece are arranged between the left clamping plate and the right clamping plate, and are internally provided with a V-shaped supporting plate separately; one side of the upper clamping piece and / or the lower clamping piece is provided with a moisture sensor; a controller is connected with the moisture sensor and an alarm; and the data detected bythe moisture sensor is transmitted to the controller, and the controller controls the operation of the alarm. The plant specimen holder of the invention can remind the related staff to replace absorbent paper; the upper clamping piece and the lower clamping piece are internally provided with the V-shaped support plates and vent holes, so the flowing of air is enhanced, and the drying process of aspecimen is accelerated; the specimen cabinet can simultaneously fix two sides and two ends of a plurality of specimen holders to prevent the occurrence of overturning and the like; and the specimen cabinet is provided with an air circulation device which quickly dehumidifies air in the cabinet to accelerate the flowing of the air and prevent specimens from mildew.

A minimally invasive surgical instrument for conveniently and completely extracting a cut specimen from a surgical cavity in a minimally invasive surgery comprises a sleeve, a core tube, a clamping strip and a specimen bag. The sleeve is a hollow tubular passage for other components to access the surgical cavity, the core tube is formed by four stainless steel elongated sheets connected at one end, a traction thread is fixed at the bottom center of the core tube, a traction ring for facilitating traction is arranged at the other end of the traction thread, a clamping socket is arranged on one sheet and used for insertion of the clamping strip, the clamping strip is an elongated stainless steel strip and matched with the clamping socket on the core tube in shape, the clamping strip can be inserted into the clamping socket and fixed therein, a barb is arranged at a position close to the bottom of the clamping strip and used for fixing an opening of the specimen bag, and a body of the specimen bag covers the bottom end of the core tube to contain specimens.

The invention discloses a specimen fixing device and an animal mucous membrane tissue specimen producing method. The specimen fixing device is used for fixing an animal mucous membrane tissue specimen. The specimen fixing device comprises the following components: a fixing station, which employs a non-infiltrating material and comprises a fixing plane for fixing the specimen, wherein the fixing plane is opened with several inserting holes for fixing; a fixing nail, which is produced by employing the non-infiltrating material and comprises a nail body for inserting into the inserting hole for fixing, a fixing structure which is arranged on the nail body, and a gland which is exposed from the top of the fixing plane, wherein the outer contour of the gland is larger than the nail body; when the fixing nail passes through the specimen and inserts into the fixing inserting hole, the fixing structure and the fixing station are matched for fixing; the nail body is used for traversing the specimen, and the gland part and the fixing plane are used for respectively supporting the upper and down sides of the specimen. The device has the effects for stably fixing the specimen and avoiding pollution of the specimen.

An apparatus for measuring the air permeability of a moulded paper product under negative pressure is composed of the upper air permeable region of specimen, which consists of measuring head and fixing unit, and the lower pressure difference generating region comprising pressure stabilized water tank, pressure-difference vertical water tube, and sealing-up valve. Its measuring method includes such steps as closing sealing-up valve, filling water in water tank, fixing specimen to measuring head, opening the sealing-up valve, and measuring the water volume flowing out within a certain time. Its advantages are simple structure, low cost and easy operation.

The invention discloses a basic medical specimen storage device with a protection function, and relates to the technical field of medical instruments. The basic medical specimen storage device with the protection function comprises a bottom plate, bearings are fixedly connected to the positions, close to the left side and the right side, of the upper surface of the bottom plate, and the two bearings are sleeved with a first rotating shaft and a second rotating shaft respectively. According to the basic medical specimen storage device with the protection function, by arranging a soft cushion, aspring I and a telescopic rod, after a specimen container is put into a placing cylinder, the soft cushion can be used for primarily damping the specimen container, and the specimen container extrudes the spring I and the telescopic rod through the placing plate, so that the specimen container is prevented from being damaged after being placed in the placing cylinder; through the cooperation of adriving wheel, a driven wheel and a belt, the inclined planes of two trapezoidal block pairs extrude sliding rods through rolling wheels, so that the clamping plates fix specimen containers with different sizes, and the specimen containers are prevented from being damaged due to the phenomenon that the specimen containers slide off or topple over due to shaking, so that students can convenientlywatch and study.

The invention provides a specimen conveyor. The specimen conveyor comprises a cuboid shell, wherein axes of the outer sides of a left side surface, a right side surface, an upper bottom surface and a lower bottom surface are tightened by metal rods, and the metal rods at the left side surface and the right side surface extend upwards to form a handle for lifting; the tightening metal rods at the left side surface and the right side surface are provided with a plurality of fixed shafts for fixing specimen boxes; the left side surface and the right side surface of each specimen box are provided with a cylindrical groove corresponding to the fixed shafts, and the fixed shafts are nested in the grooves in the left side and the right side of each specimen box; a top cover of each specimen box seals the top of a box body by virtue of a buckle; each specimen box rotates around the fixed shaft, when the specimen conveyor is horizontally put down, each specimen box rotates along the fixed shaft due to own gravity, and the top surface faces upwards; and when the specimen boxes are vertically lifted, each specimen box rotates along the fixed shaft due to the own gravity, and the top surface still faces upwards. By adopting the specimen conveyor, the transportation and storage of a plurality of specimens can be realized, and not only is the conveying efficiency improved, but also the efficiency of a vacuumizing and formalin injection operation process can be improved.

The invention discloses a horse multi-color organ skin-fur-skeleton connected dubbed dry specimen. The specimen comprises a specimen body and a bench for fixing the specimen body; the specimen body ismainly composed of a prosthesis bracket, a skin-fur-skeleton connecting body, an isolated skeleton and an imitated arcus costarum; the isolated skeleton is manufactured on the prosthesis bracket in series, the skin-fur-skeleton connecting body is arranged on the prosthesis bracket through gesture adjustment, and multi-color dry cardiovascular organs, multi-color dry organs of the respiratory tract and multi-color dry organs of the digestive tract are arranged in a body cavity of the specimen body according to original positions and original shapes. According to the specimen, the skin and furof the whole body are connected, the shape is life-like, the dry specimen can have multiple application functions of display of the various multi-color organs of an animal specimen, skin-fur-skeletonconnection, dubbed playback teaching and convenient taking and storage, and can replace animal living bodies for practical teaching of clinical courses and elementary courses of animal husbandry and medical science.

The invention discloses a two-finger multifunctional stall for fixing a specimen. The two-finger multifunctional stall comprises a two-finger stall body comprising a thumb stall body and a forefinger stall body. The thumb stall body and the forefinger stall body are each provided with a finger containing hole and are connected. A connection plate is arranged at the connection position between the thumb stall body and the forefinger stall body. A hole is formed in the connecting plate. A top cover is connected to the hole. The four corner ends of the rear side face of the connecting plate are provided with connecting holes respectively. The connecting holes are connected with a light-emitting device. The light-emitting device is provided with fixing hooks connected with the connecting holes formed in the rear side face of the connecting plate in a matched mode. The fixing hooks are buckled in the connecting holes respectively to be fixed. According to the technical scheme, through the connecting plate arranged between the two finger stall bodies, insertion and ejection are convenient; through the light-emitting device connected with the connecting plate, the two-finger multifunctional stall can be conveniently used in a dark place or at night, and use is convenient; the light-emitting device can be inserted in and can also be detached, and therefore the light-emitting device is flexible and convenient to use; the whole two-finger multifunctional stall is attractive in appearance, flexible to use, and convenient to use and improves work efficiency.

The invention relates to a precious and fragile stratum specimen collection method. The method comprises the following steps: S1, carrying out a gluing operation on working ground, and then covering aglued part with gauze; S2, after glue on the stratum surface solidifies, carrying out a digging operation around the glued part; S3, carrying out a gluing operation on the side wall of a dug specimenin the digging process, covering with the gauze, and waiting for a certain time after the digging is completed in order to facilitate solidification of the glue on the side wall of the specimen; S4,taking out the specimen, gluing the back of the specimen and winding with the gauze; S5, removing the gauze from the specimen, and modifying the surface of the specimen; S6, carrying out a gluing operation on the surface of the specimen again after the modification is completed, and washing the whole specimen with water after the glue on the surface is fixed; S7, fixing the water-washed specimen with gypsum; and S8, ending preparation of the specimen.

The invention relates to the technical field of specimen receiving, in particular to an automatic anti-loss specimen receiving device, which comprises an annular track, a specimen signing mechanism, a specimen storage mechanism and a transfer mechanism used for transferring specimens from the track to the specimen storage mechanism; the specimen signing mechanism is used for signing the specimens; and a fixed base used for fixing the specimens is installed on the track and can move along the track to convey the specimens to the specimen transfer mechanism. Specimens are automatically and timely transferred into the specimen storage mechanism to be stored through the track and the transfer mechanism, the specimens are effectively prevented from being discarded, manual real-time monitoring is not needed, and medical staff, especially staff on duty at night shift, are liberated.

The invention relates to a multifunctional pathological specimen soaking device, and belongs to the technical field of medical instruments. The multifunctional pathological specimen soaking device comprises a cylinder body, a fixing base is arranged on the lower side of the cylinder body, an observation panel is arranged on the front side of the cylinder body, heat dissipation fluid directors arearranged on the two sides of the cylinder body, a horizontal inner cylinder is arranged in the cylinder body, a horizontal anti-shaking frame is arranged on the upper side of the horizontal inner cylinder, and semiconductor temperature controllers are arranged on the two sides of the horizontal inner cylinder. A soaking chamber is arranged in the horizontal inner cylinder, a soaking buffer chamberis arranged on the upper side of the soaking chamber, and a specimen soaking frame is arranged in the soaking chamber. The multifunctional pathological specimen soaking device is comprehensive in function, convenient to operate and use, capable of fixing specimens better and more normatively, enabling the specimens to be fully soaked, storing the specimens at the constant temperature, preventingthe specimens from deteriorating, preventing the specimens from shaking and turning over when the specimens are soaked, enabling the specimens to be taken and placed more conveniently, and meanwhile reducing diffusion of smell of specimen soaking liquid when the specimens are used, and avoiding air pollution and influence on the health of medical staff.

The invention provides an insect liquid immersion specimen box. The insect liquid immersion specimen box comprises a cylindrical transparent glass container, a top cover in threaded sealing connectionis arranged at an opening in the top of the glass container, a plurality of net-shaped isolation plates capable of being freely disassembled and assembled are arranged in an inner cavity of the glasscontainer at intervals, and a plurality of centrifuge tube holes are distributed in the net-shaped isolation plates. According to the insect liquid immersion specimen box provided by the invention, through the designed isolation plates, it is guaranteed that a large number of immersed specimens can be stored, the positions of the specimens can be well fixed, and searching is convenient.

The invention discloses a plasticized specimen for displaying anatomical characteristics of fascia fiber construction and a dissecting method, and the method comprises the steps: S1, after a part separated from a human body or a large animal is subjected to anticorrosion fixation, dissecting and sampling of a fascia in a target area is carried out, and a fascia specimen is obtained; s2, bleaching the fascia specimen with hydrogen peroxide, and then soaking and washing the fascia specimen with small flowing water; s3, unfolding the specimen, and flattening the fascia specimen; fixing the specimen by using a splint grid, and respectively immersing the specimen into two acetone liquids at different temperatures for dehydration; s4, degreasing in normal-temperature acetone liquid with different concentrations for multiple times; s5, preparing a glass clamping piece, and adding the glass clamping piece into a P45 mixed solution for full embedding; completely infiltrating the P45 mixed solution in a low-temperature negative-pressure state, and hardening the P45 mixed solution in a water bath box; and S6, taking out the transparent and hardened fascia specimen, and cutting, trimming and forming the fascia specimen. The anatomical characteristics of fiber construction of fascia of a certain part of a human body or a large animal are comprehensively displayed on the macroscopic level.