42results about How to "Expansion is effective" patented technology

The invention discloses a novel gynecological operation auxiliary system. The novel gynecological operation auxiliary system comprises a uterus expanding module, a camera shooting module, surgical instruments and a software and hardware supporting module, wherein the uterus expanding module comprises a plurality of expanding wires, an inner tube, an outer sheath tube and a tee joint, the camera shooting module comprises a fixing frame, a camera and a cleaning spray nozzle, the software and hardware supporting module is used for displaying images in the operation process in the whole journey and used for information collection and file storage, the fixing frame is installed on the expanding wires of the uterus expanding module, the camera is connected with the software and hardware supporting module, and the surgical instruments penetrate through the inner tube and the tee joint to enter the uterine cavity. The novel gynecological operation auxiliary system systematically solves a series of problems of uterine cavity expansion, visual operations, information and file storage and the like in the gynecological operation.

The invention relates to a variable columnar bladder digestive tract expanding support. The variable columnar bladder digestive tract expanding support comprises an air/liquid injection tube and a variable columnar bladder; one end of the air/liquid injection tube is provided with an openable air/liquid injection nozzle, and the variable columnar bladder is connected with the other end of the air/liquid injection tube; the air/liquid injection nozzle can inject air/liquid into the variable columnar bladder or draws air/liquid out of the variable columnar bladder, the variable column bladder is expanded to a hollow annular cylindrical supporting body after air/liquid is injected to the variable columnar bladder, a supporting body utilizes internal expansion pressure to be supported at a narrow digestive tract of a patient, and a hollow part of the supporting body forms a food flow channel. The volume of the injected air/water can be decided according to the narrowness of the digestive tract of the patient and the like, the size of the supporting body can also be constantly changed according to the change of a narrow section so that the supporting body can be firmly supported on the narrow digestive tract of the patient all the time and prevented from moving and slipping; meanwhile, by adjusting the size of the diameter and the expansion pressure, gradual expansion is achieved, so that the patient is adapted to expansion, and the probability that the patient bleeds and is perforated can be lowered.

The invention relates to a schlemm tube stand with indication and push function, which belongs to the technological field of ophthalmic surgical stand. The schlemm tube stand with indication and push function comprises stand body, guide apparatus connecting with the stand body. The stand body is hollow tubular structure and is provided with a gap across to the top and the end. The stand body is provided with a notch, and the head end of the stand body is provided with a limited opening. The guide apparatus comprises a catheter, connector, fiber optic, and injection device. One end of the catheter is provided with a spacing groove and is connected with limited opening of the stand body through the spacing groove. The other end of the catheter is connected with the connector, and the connector is provided with two channels, one is an injection channels, and the other is an optical fiber channel. The optical fiber channel is connected with a laser generator, and the pipe is provided with an optical fiber. The schlemn tube stand used for expanding application of schlemn tube surgery can play the effect of Schlemm tube expansion for a long time. The presence of the optical fiber can indicate the position of the stand in the implantation process in real time, which brings great convenience to the operation, and the operation is simple.

The invention discloses a modified anti-cracking concrete expanding agent and a preparation method thereof. The expanding agent is prepared from the following raw materials in parts by weight: 10-20 parts of modified calcium oxide, 1-5 parts of calcium sulphoaluminate, 3-5 parts of fly ash, 10-20 parts of fluorgypsum, 5-15 parts of aluminum oxide, 5-15 parts of magnesite, 2-4 parts of calcium carbonate and 8-12 parts of modified expandable graphite. According to the invention, the calcium sulphoaluminate is modified through a composite modifier, then the calcium sulphoaluminate is compounded with the modified calcium oxide to prepare an expanding agent A, an expanding agent B is prepared from raw materials such as the magnesite, the fluorgypsum and the calcium carbonate, and finally, the expanding A, the expanding B and expandable graphite are ball-milled, screened, mixed and stirred to obtain the modified expanding agent, the expanding A, the expanding B and the expandable graphite have synergistic effect, and an expanding effect is achieved; and under the action of a stirrer, the stirring effect is improved, the production efficiency is also improved, a hardening phenomenon is avoided, the production cost is reduced, materials are uniformly mixed, and the product quality is improved.

Improved methods and compositions for safe and effective treatment of telangiectasia or a symptom associated with telangiectasia in a subject are described. The methods involve topically applying to an affected skin area a topical composition comprising about 0.3% to about 10% by weight of brimonidine and a pharmaceutically acceptable carrier.

The invention discloses a modified polyacrylate flame-retardant emulsion, a modified polyacrylate flame-retardant pressure-sensitive adhesive containing the emulsion and a preparation method of the modified polyacrylate flame-retardant emulsion, and the preparation method of the modified polyacrylate flame-retardant emulsion comprises the following steps: firstly, mixing epoxy resin and acrylic acid mixed monomers, then adding an emulsifier solution for pre-emulsification to obtain a pre-emulsion, and then adding the pre-emulsion into a reaction kettle for reaction to obtain the modified polyacrylate flame-retardant pressure-sensitive adhesive. And dropwise adding an initiator solution into the pre-emulsion, and carrying out semi-continuous seed-initiated polymerization to obtain a seed emulsion, namely the modified polyacrylate flame-retardant emulsion. The modified polyacrylate emulsion has good fire resistance, and also has excellent cohesiveness, weather resistance and film-forming property of the polyacrylate emulsion. The main component of the pressure-sensitive adhesive is modified polyacrylate flame-retardant emulsion, melamine-ammonium polyphosphate-dipentaerythritol is supplemented as an intumescent flame-retardant system, and titanium dioxide, zinc oxide, graphene and diatomite are added to reduce the smoke amount and improve the strength of a carbon layer, so that the flame-retardant property of the pressure-sensitive adhesive is improved.

The invention provides a thin-wall aluminum pipe stretching and expanding connection forming device and a technology thereof. First springs on the two sides are connected and provided with an upper expanding connection plate and a lower expanding connection plate correspondingly; an upper lead screw and a lower lead screw are fixedly arranged at the two ends of a rotating rod correspondingly, the upper lead screw and the lower lead screw can be driven by a transmission device to rotate, push rods are fixedly arranged on nuts, clamping and embedding parts are fixedly arranged in clamping grooves, pull ropes are connected to the ends of the push rods, coating plates are connected to second springs, baffles are used for shielding the coating plates, and the ends, away from the push rods, of the pull ropes are fixed to the baffles; and a touch switch is arranged on a pull rod. According to the thin-wall aluminum pipe stretching and expanding connection forming device and the technology thereof, the expanding connection degree can be freely adjusted, sectional expanding connection is achieved, a thin-wall aluminum pipe is effectively protected, the thin-wall aluminum pipe can be smeared and marked after expanding connection, workpieces with expanding connection completed and workpieces with expanding connection not completed can be conveniently and rapidly distinguished, and use is convenient.

The invention discloses a visual urethral dilation kit, which comprises a urethroscope, a guide wire, a balloon, a guide sheath, a balloon pressurizer, a urethral dilator and a pusher, wherein the balloon is provided with the guide wire; a channel allowing the guide wire to penetrate through is arranged in the urethroscope; the balloon pressurizer and the balloon with the guide wire jointly form a balloon dilator; the balloon pressurizer is connected to the rear end of the guide wire of the balloon and communicates with the balloon through a pressurizing hole in the guide wire; the diameter of the guide sheath is larger than that of the guide wire; the urethral dilator is in sleeving at the front end of the guide sheath; and the pusher is connected to the rear end of the guide sheath and has the same diameter with the guide sheath. According to the visual urethral dilation kit, the modes of balloon dilation and urethral dilator implantation are adopted, the visual technology is combined, and the purposes of accurately, effectively and continuously dilating the urethra and protecting the bladder and kidney functions are achieved.

The invention discloses an adjustable cervical vertebra operation gap expansion channel device which comprises an expander body composed of a first expansion assembly, a second expansion assembly and a control assembly; The control assembly is arranged on the side, close to the holding end, of the second long extension arm and clamped to the main adjusting arm to be used for controlling position adjustment between the first expansion arm and the second expansion arm. a gap blocking assembly which is detachably clamped on the first auxiliary adjusting arm and the second auxiliary adjusting arm between the first expansion assembly and the second expansion assembly. According to the adjustable cervical vertebra operation gap expansion channel device, by arranging the expander body and the gap blocking assembly, the size of the expansion channel can be adjusted, and the purpose of increasing the expansion range in a limited mode is achieved; meanwhile, the gap blocking assembly is arranged to make up gaps generated by expansion during expansion, and the integrity of the expansion channel is guaranteed; the surgical field is effectively exposed so that a surgeon can smoothly finish the surgery.