64results about How to "Easy to dissect" patented technology

A direct vision cryosurgical and methods of use are described herein where the device may generally comprise an elongated rigid structure with a distal end, a proximal end, and a central lumen. The distal end may comprise a non-coring optically transparent needle tip with at least one lateral fenestration in communication with the central lumen. The distal end may also house at least one imaging device configured for distal imaging. A proximal end of the device may comprise a handle with a means for connecting the imaging device(s) to an imaging display(s), and a means for accessing bodily tissue in the vicinity of the distal end with a cryo-ablation probe through the central lumen and the lateral fenestration(s) for diagnostic or therapeutic purposes.

An access platform having a first and a second blade interconnected to a spreader member that laterally drives the blades apart or together and a sternal pad interconnected to a blade. The superior blade is preferably pivotally coupled to the spreader member such that it naturally rises as the blades are separated. Alternatively, a vertical displacement member is operably interconnected to a blade and the spreader member and is used to vertically displace the interconnected superior blade and, thus, increase a surgeon's working space and visual access for the dissection of an internal mammary artery. A tissue retractor is interconnected to the blades to draw the soft tissue around an incision away from the surgeon's working area.

The present invention relates to a method of identifying a region (one or more) of a genome of a cell to which a protein of interest binds. In the methods described herein, DNA binding protein of a cell is linked (e.g., covalently crosslinked) to genomic DNA of a cell. The genomic DNA to which the DNA binding protein is linked is removed and combined or contacted with DNA comprising a sequence complementary to genomic DNA of the cell under conditions in which hybridization between the identified genomic DNA and the sequence complementary to genomic DNA occurs. Region(s) of hybridization are region(s) of the genome of the cell to which the protein of binds. A method of identifying a set of genes where cell cycle regulator binding correlates with gene expression and of identifying genomic targets of cell cycle transcription activators in living cells is also encompassed.

A high frequency surgical instrument having a forceps assembly at a fore distal end of an elongated insertion member, the forceps assembly being constituted by a pair of opening and closing grasper members which are shaped with a series of saw teeth on an inner meeting side in such a way that saw tooth portions on the two grasper members are at least partly brought into abutting engagement with each other when the grasper member are closed. For manipulating opening and closing actions of the grasper members, a manipulative transmission means is threaded through the insertion member, connecting the paired grasper members of the forceps to a manipulation handle which is attached to a proximal end of the insertion member. Each one of the grasper members is formed of a conducting material and arranged to have a width narrower than outside diameter of the insertion member on the saw-toothed inner side. The grasper members are electrically connectible to a high frequency power source, and are entirely covered with an insulating coat except saw tooth portions.

The invention provides an array antenna electromagnetic characteristic solving method based on finite element region decomposition, and aims to give consideration to the calculation precision, solvingcapability and efficiency of solving the electromagnetic characteristics of a large array antenna at the same time, and the method comprises the following specific steps: (1) creating a unit geometric model; (2) setting materials and boundary conditions; (3) generating unit grids; (4) translating and copying the unit grids; (5) replacing the material and boundary attributes of the non-structuralunit; (6) solving by adopting a finite element region decomposition method; and (7) calculating electromagnetic characteristics. According to the invention, a finite element region decomposition method is applied to electromagnetic characteristic solution of the array antenna, so that the difficulty in geometric modeling and mesh generation of the large array antenna is reduced, and both the solution precision and the solution efficiency are considered.

The invention discloses a rat operating platform. The rat operating platform comprises an operating table, an angle adjusting device and a fixing device. The angle adjusting device is arranged at the lower end of the operating table, and the lower end of the angle adjusting device is connected with the fixing device through a rotary shaft. A lamp groove is formed in the side face of the front end of the operating table, and a clamping block is arranged on the upper portion of the lamp groove. A lamp connecting piece is arranged at the front end of the lamp groove, and an LED lamp is arranged at the top end of the lamp connecting piece. A telescopic rod is arranged at the top end of a fixed rod, and a head fixing device is arranged at the tail end of the telescopic rod. Binding belts are arranged on the two sides of the operating table respectively. A tail fixing hole is formed in the rear end of the operating table. A heat dissipating net is arranged in the middle of the upper surface of the operating table, and the lower end of the heat dissipating net is provided with a heat preserving water cavity. A temperature sensor is arranged in an inner cavity of the heat preserving water cavity, and a water feeding and discharging pipe is arranged at the right end of the heat preserving water cavity. The rat operating platform is simple in structure, diversified in function, convenient to use and high in practicability and improves working efficiency.

The invention discloses a process for producing flat-bulb steel, belonging to the field of metal rolling. The production process comprises the following steps: (1) BD1 rolling; (2) BD2 rolling; (3) DRDF rolling; (4) primary material cooling; (5) subdividing and straightening for the cooled primary materials. Compared with the prior art, the process has the characteristics of being good in universality of steel billet and rollers, large in size range of final products and good in quality of the final products.

The invention relates to a digitized virtual hand anatomy construction method, which includes the following steps: A, specimen selection and pretreatment; B, specimen injection; C, CT scanning for data set acquisition; D, visualized three-dimensional reconstruction of the hand on a common PC platform through Mimics software developed by Belgian Materalise company, which includes the steps of a, three-dimensional reconstruction of the outline of the hand; b three-dimensional reconstruction of bones; c, three-dimensional reconstruction of the artery of the hand; d, three-dimensional reconstruction of the tendons of the hand. The construction method for the first time realizes comprehensive digitized three-dimensional reconstruction of a hand anatomy and converts two-dimensional pictures commonly used in clinics into three-dimensional pictures, which is good for further improvement of understanding of human hand and provides scientific basis for clinical diagnosis, treatment program formulation and related operations.

The invention discloses a whole clearing method. The method comprises the following sequential steps: A. separating plant material from a part to be observed; B. soaking the plant material in 84 disinfectant till the plant material is transparent; and C. taking out the plant material for flaking observation. The method has the advantages that 1. clearing reagent and staining solution which are used in the method are market products, convenient to buy and cheap; 2. when the clearing reagent is used for clearing treatment, no material dehydration and the like is needed before the treatment, thereby not only avoiding problems such as shrinkage and the like caused by the material dehydration but also greatly shortening the time for clearing and simplifying the flaking treatment process; 3. asfor field-use material preserved by ethanol solution, the method can be directly used for achieving a relatively good observation effect; 4. the method for using filter paper to take out of the plantmaterial is simple and easy to operate, and the material is easily available; and 5. lens paper is used for fixing the plant material so that the method for dissecting the plant material under an anatomical lens is simple to operation and the material is easily available.

The invention relates to a moisture-preserving, freshness-retaining and color-retaining fresh flower specimen making method. The moisture-preserving, freshness-retaining and color-retaining fresh flower specimen making method includes the following steps that S1, newly-picked whole fresh flowers are completely soaked into first stationary liquid, stationary color retaining is conducted for 5 h to 7 h, the obtained flowers are taken out and washed with flowing water for 8 min to 12 min, after washing is completed, residual washing water on surfaces are blown to be removed, and the obtained flowers are ready for use; S2, the fresh flowers ready for use in S1 are completely soaked into second stationary liquid, stationary color retaining is conducted for 3 h to 5 h, the obtained flowers are taken out and washed with flowing water for 4 min to 6 min, after washing is completed, residual washing water on the surfaces are blown to removed again, and the obtained flowers are ready for use; the fresh flowers ready for use in S2 are soaked with preserving liquid or embedded with high molecular resin, and specimens are obtained. The moisture-preserving, freshness-retaining and color-retaining fresh flower specimen making method has the advantages that the obtained fresh flower specimens have the characteristics of moisture preserving, freshness retaining and color retaining, it is avoided that fresh flowers are dried with air and dried beside or over a fire, and the made fresh flower specimens have soft tissue and are not rotted, subjected to color changing and deformed; the fidelity of the made fresh flower specimens is higher, the color and the shape of the specimens can be kept for a long time, and the technology is initiative at home and abroad.

The invention belongs to the technical field of medical devices and particularly relates to a laboratory rat dissection device and a use method thereof. The laboratory rat dissection device comprisesa dissection table, a dissection cushion, fixing parts and binding parts, wherein the dissection cushion is detachably mounted on the dissection table; a plurality of inserting holes are uniformly distributed in the dissection cushion; and the lower parts of the fixing parts and the binding parts are detachably inserted into the inserting holes. The dissection table and the dissection cushion aredetachably connected, so that a researcher conveniently selects the proper dissection cushion according the size of body of a laboratory rat and the dissection cushion can be conveniently dismounted and disinfected. The use method of the laboratory rat dissection device is simple and convenient to operate and facilitates the dissection work of the laboratory rat by a single researcher; and all main components of the dissection device are detachably connected and mounted and are convenient to clean and disinfect.

The invention discloses a mobile dissecting table for medical dissection. The mobile dissecting table comprises a bottom plate, wherein walking wheels are arranged under the bottom plate, and a box body is arranged above the bottom plate; the inner portion of the box body is provided with a formalin storage box; the right side of the formalin storage box is provided with a storage battery, and theleft side of the formalin storage box is provided with a clear water tank; the left side of the clear water tank is provided with a sewage tank; an operating box is arranged above the box body, and the top of the box body is provided with a dissecting table body; the dissecting table body is located in the operating box, and the periphery of the dissecting table body is provided with a recovery groove; the left side of the operating box is provided with an air intake fan, and the right side of the operating box is provided with an exhaust fan; a lifting adjustment mechanism is arranged underthe bottom plate. The mobile dissecting table for the medical dissection has the advantages that through the arrangement of the walking wheels and the storage battery, the movement of the dissecting table is facilitated; light supplementing lamps provide good view for an operator; a germicidal lamp sterilizes the inner portion of the operating box to prevent bacteria from being bred; a hand washing sink provides the operator to clean up; sewage generated in the dissection process is collected into the sewage tank to prevent the surrounding environment from being polluted; and the lifting adjustment mechanism improves the comfort of operation.

An endoscope hybrid knife includes: a handle part having a hollow portion and an opening; first and second handle sliders coupled to the outer peripheral surface of the handle part so as to be slidable forwards and backwards in the longitudinal direction; a pipe disposed in the hollow portion of the handle part, and connected to the first handle slider; a second knife disposed to pass through the pipe, and connected to the second handle slider; a fluid injection part, which is coupled to one end of the handle part for injecting fluid therein; an inner tube which is connected to one end of the fluid injection part; a first knife coupled to the end of the pipe; and an insulating tip coupled to the end of the first knife, wherein the first knife and the second knife are slidable independently of each other.

The invention provides a lower air suction type clean human body dissecting table, and belongs to the technical field of experiment devices. The lower air suction type clean human body dissecting table comprises a dissecting table, an air suction device and a plurality of groups of moving tool tables, wherein the air suction device comprises an air suction table and a fan; a square groove is formed in the top of the dissecting table; the air suction table is arranged at one end of the square groove, and multiple air suction openings communicate with the side face of the air suction table; a trapezoidal ventilation pipe is arranged at the bottom of the dissecting table and communicates with the air suction table; the fan is arranged in the L-shaped ventilation pipe; each movable tool tablecomprises a tool table and a supporting table; the supporting table comprises a mounting plate and two motor plates fixedly arranged at the bottom of the mounting plate; the two motor plates are matched with the two sides of the side edge of the dissecting table; the supporting table is erected on the side edge of the dissecting table, and each supporting table is driven by a set of driving devices to move on the side edge of the dissecting table; and the tool table is fixedly arranged at the top of the mounting plate through bolts. The device can effectively remove odor and liquid of the dissected specimen, and meanwhile, the automatically moving placement table is convenient for taking tools.

The invention relates to a multifunctional dissection device and belongs to the technical field of medical instruments. According to the technical scheme, the multifunctional dissection device comprises a handle, and is characterized in that a power box is arranged on the right side of the handle; a power button switch is arranged on the upper side of the power box; a power box protecting cover is arranged on the front side of the power box; the lower side of the power box protecting cover is connected with the power box through a protecting cover connecting rotating shaft; a protecting cover latching buckle is arranged on the upper side of the power box protecting cover; a charger is arranged on the right side of the power box; a charging interface is arranged on the front side of the charger. A cutter body is firm to fix, the skin and the tissues can be cut, and bones and tendons can be sawed off; the device is multifunctional, has convenient and safe dissection functions, and is high in working efficiency, and a surgery can be smoothly performed.

The invention relates to a rapid extraction method for total RNA of an acaudina molpadioides digestive tract. At present, a sample is relatively difficult to process before the total RNA of the acaudina molpadioides digestive tract is extracted, the extraction yield of the total RNA is not high, and the total RNA is easy to pollute. The method comprises the following steps of: grinding a liquid nitrogen frozen acaudina molpadioides digestive tract tissue by using a mortar, putting the powder into TRIZOL lysis solution for lysis and homogenization; homogenizing and centrifuging the tissue, taking supernatant fluid, adding chloroform, shaking, blending, centrifuging and taking the supernatant fluid; adding low temperature isopropyl alcohol, blending, and centrifugating; washing by using 75 percent of ethanol; and dissolving precipitates by using RNA (Ribose Nucleic Acid) enzyme-free deionized water, and preserving at the temperature of between -90 and -70 DEG C. According to the method, the RNA degradation of the sample is effectively avoided, the RNA precipitation effect is improved, the extracting time is short, the RNA integrity is high, and the requirement of real-time quantitative PCR (polymerase chain reaction) detection is completely met.

The invention provides an animal operation or dissection workbench which comprises a workbench face plate. The workbench face plate is provided with a plurality of locating holes, a plurality of support mounting holes, flow guiding grooves and sewage draining holes. The locating holes are provided with locating bolts matched with the locating holes. The flow guiding grooves are evenly distributed in the workbench face plate and are communicated with the sewage draining holes. The locating bolts are connected with tying ropes or pulling hooks. A support is arranged on the supporting mounting holes. A support connector is arranged on the support. One end of the support connector is connected with the support. The other end of the support connector is connected with a connecting joint. The connecting joint and the support connector can rotate around a connecting point. The other end of the connecting joint is connected with a tool head. The multifunctional animal operation or dissection workbench is suitable for operation by a single operator.

An incision is formed at a site where a cellular tissue is to be dissected. A liquid is ejected to the incision. The incision is expanded. The cellular tissue is dissected. The liquid is ejected in the form of a pulse flow. The liquid is ejected in such a way as to advance obliquely to a tangential direction to a surface of the cellular tissue. A site where the liquid is applied to the surface is moved in a direction in which an angle formed by the surface and the direction of advancement of the liquid is greater.

Provided herein is an animal model system and uses thereof. In particular, provided herein is an animal model for Neisseria infection and use of such a model in research and screening applications.

The invention relates to a dissecting device, in particular to a biological dissecting device. A biological dissecting device comprises a groove box and a rubber plate, the rubber plate is arranged in the groove box, and the middle of the rubber plate can protrude upwards. The device further comprises strip-shaped holes, sliding shafts and baffle rings, the left end and the right end of the rubber plate are fixedly connected to the sliding shafts correspondingly, the strip-shaped holes are formed in the front side and the rear side of the groove box correspondingly, the front end and the rear end of each sliding shaft are inserted into the two strip-shaped holes correspondingly, and the baffle rings are fixedly connected to the front end and the rear end of each sliding shaft correspondingly. The two baffle rings on the same sliding shaft are attached to the front side and the rear side of the groove box respectively. And a plurality of leakage holes are formed in the groove box. The device further comprises sliding seats and a transverse column, the two sliding seats are rotationally connected to the front portion of the sliding shaft respectively, the left end and the right end of the transverse column are slidably connected with the two sliding seats respectively, and each sliding seat is pressed and fixed to the transverse column through a screw. And organisms can be supported from the bottom, so that dissection is facilitated.

The invention discloses an experimental device for dissecting small animals. The experimental device comprises a protection mechanism, a fixing mechanism, a dissecting mechanism and an adjusting mechanism, the protection mechanism is fixedly installed at the top of one end of the fixing mechanism, the dissecting mechanism is located on the outer surface of the fixing mechanism, and the adjusting mechanism is located in the fixing mechanism. The situation that blood or body fluid of a small animal splashes, and consequently dissecting personnel are polluted can be effectively avoided, meanwhile, the two concave mirrors and the two convex mirrors can be conveniently converted for use, dirt is prevented from affecting observation, mirror surfaces are conveniently clamped, and the shaking phenomenon is prevented; by arranging a concave mirror and a convex mirror, dust can be prevented from entering a gap between the concave mirror and the convex mirror, the distance between the concave mirror and the convex mirror can be adjusted through the arrangement of the threaded cylinder and the threaded rod, the angles, heights and positions of the concave mirror and the convex mirror can be automatically adjusted, internal organs of small animals can be amplified, and dissection observation is better facilitated.

The invention discloses a method for constructing a urinary calculus animal model by using a locust, and belongs to the field of biomedicine. The method comprises the following steps of (1) injecting4-8 [mu]L of a copper chloride solution with the concentration of 5.0-10.5 mM into the abdominal cavity of the locust for the first time, and feeding the locust with fresh wheat seedlings under the conditions that the ratio of illumination time to darkness time is 13: 11 hours, the illumination temperature is (24-28)+ / -2 DEG C, the darkness temperature is (20-26)+ / -2 DEG C and the humidity is 60-85%; (2) injecting 4-8 [mu]L of the copper chloride solution into the abdominal cavity of the locust for the second time, and feeding the locust with the fresh wheat seedlings under the conditions thatthe ratio of illumination time to darkness time is 14: 10 hours, the illumination temperature is (24-28)+ / -2 DEG C, the darkness temperature is (20-26)+ / -2 DEG C and the humidity is 60-85%; and (3) after the locust injected with the copper chloride solution is subjected to physiological metabolism for 24-48 hours, gradually generating calcium oxalate crystals in different forms in a Markov tube.The method has the advantages of low material cost, good stability, controllable process and short period.