212 results about "Tracheal cannulation" patented technology

The invention provides a method for managing experimental animal respiration, which utilizes a clinic anesthesia machine for the anesthetization of the animal experiment, performs tracheal cannula on an animal, adopts an animal temperate maintenance instrument to keep warm, and keeps the body temperature at the physical level (37 plus or minus 0.5 DEG C) all the time during the anesthesia process. The method is used for solving the animal respiration management problem during the traditional anesthesia process, the same inhalation anesthesia concentration and the stable body environment are also maintained during the whole anesthesia process. By the method, not only is the stress response of the experimental animal reduced, but also the vital sign stability of the experimental animal can be maintained during the inhalation anesthesia process of a long time (such as 4 hours), the mortality is low and the reviving can be stable, and the influences of trauma stress, hypoxia-ischemia, hypercapnia, acidosis and other interference factors on the experimental result can be eliminated. The method effectively controls the respiratory tract of the experimental animal, and also maintains the inhalation anesthesia of the volatile anesthetics with constant concentration, which is output to the animal.

The invention discloses an adjustable-curvature trachea cannula, which comprises a trachea cannula, an air bag, a trachea cannula joint and a trachea cannula curvature adjusting device, wherein the air bag is arranged on the trachea cannula; the trachea cannula curvature adjusting device comprises an adjusting shaft, an adjusting handle, an adjusting steel wire and an adjusting silk thread; the trachea cannula is fixedly connected below the trachea cannula joint; the upper part of the trachea cannula joint is connected with the trachea cannula curvature adjusting device; and one end of the adjusting silk thread is fixed with the tail end of the adjusting steel wire, and the other end of the adjusting silk thread is connected with the adjusting shaft. The adjustable-curvature trachea cannula has the characteristics of simple, compact and reasonable structure, convenience for using and the like, can contribute to greatly reducing the medical treatment time of medical treatment personnel in the medical treatment process, can be used for replacing the conventional trachea cannula, and has wide application to clinical treatment.

The invention discloses a method for preparing a polyethylene material for a medical trachea cannula. The method comprises the steps of 1, preparing all the components by weight; 2, evenly mixing all the components in a mixing and stirring machine; 3, placing evenly mixed materials into a reaction still, heating the reaction still under the vacuum condition to 100-120 DEG C, stirring the materials for 10-20 min, cooling the materials to 30-40 DEG C, stirring the materials for 5-10 min, and obtaining a mixed material; 4, placing the mixed material in a double-screw extruder at a temperature of 180-190 DEG C to obtain sample bars through extrusion, and conducting water cooling, air drying and grain-sized dicing to obtain the polyethylene material. The preparing method is short in process, simple in operation, low in cost, environment-friendly and high in economical effectiveness. Compared with the prior art, the polyethylene material for the medical trachea cannula prepared with the method has the advantage that biocompatibility and safety performance are excellent and better than those of related products existing in the current market.

The invention belongs to the field of medical equipment, and particularly relates to a novel trachea cannula. The novel trachea cannula comprises a cannula body, a balloon and a balloon inflation connecting pipe; the lower end of the balloon inflation connecting pipe is communicated with the balloon, the upper end of the balloon inflation connecting pipe is connected with a balloon inflation device, a strip-shaped groove is formed along the outer wall of the cannula body, and the balloon inflation connecting pipe is embedded in the strip-shaped groove; an annular groove is formed in the lower section of the cannula body, and the balloon is fixed in the annular groove. According to the novel trachea cannula, visual operation of the trachea cannula is achieved, and meanwhile it is guaranteed that a camera device is used repeatedly; insertion of the trachea cannula is safe, and the probability of disengagement of a gular cartilage and damage of the inner wall of a respiratory tract is reduced; collapse and bending of the trachea cannula body at the meshing part are prevented; oxygen supply is not interfered with surgical operation.

The invention provides a fixing rack for multiple trachea cannulas. The fixing rack comprises a trachea cannula fixing rack body, fixing bands, a nylon buckle sticky surface, a nylon buckle rough surface, fixing band mounting holes, bolts, bolt fixing holes, external threads, a first trachea cannula fixing slot, a second trachea cannula fixing slot, a buffering layer, sliding rods and sliding rod placing slots, wherein the fixing band mounting holes are formed in the left and right sides of the trachea cannula fixing rack body; the fixing bands are mounted in the two fixing band mounting holes; the nylon buckle rough surface is mounted on the surface of the front side of the fixing band on the left side; the nylon buckle sticky surface is mounted on the surface of the rear side of the fixing band on the right side. Due to the arrangement of the sliding rods and the bolts, the fixing rack is favorable for fixing the trachea cannulas; the multiple bolts are favorable for fixing the multiple trachea cannulas simultaneously; the trachea cannula fixing rack body is prepared from a polyethylene plastic material, so that the fixing rack is light in weight and convenient to carry, and the cost investment is reduced.

The invention discloses a visual pressure stabilization trachea cannula, and relates to the field of medical instruments. The visual pressure stabilization trachea cannula comprises a cannula body, a sleeve bag, an air storage bag and a one-way valve, the sleeve bag is arranged at the end of the cannula body, the air storage bag is communicated with the sleeve bag through a catheter and a pipe wall catheter, the one-way valve is arranged on the air storage bag, air is inflated into the air storage bag by the one-way valve, the pipe wall catheter is arranged in the wall of the cannula body, and the gas capacity ratio of the air storage bag to the sleeve bag is (4-8):1. According to the visual pressure stabilization trachea cannula, the high-capacity elastic air storage bag can automatically inflate air into the catheter sleeve bag, so that pressure change in the catheter sleeve bag is buffered when the sleeve bag leaks air as intubation time is prolonged, risks of aspiration pneumonia and breathing circle leakage are reduced, safety of patients is improved, various complications caused by pressure of the sleeve bag in a perioperative period are reduced, and the workload of medical staff is also relieved.

It is disclosed a blade of videolaryngoscope comprising an enlarged and curved main body with a proximal end and a distal end, the main body including an inner conduit running from the proximal end to the distal end, the inner conduit having a distal outlet for receiving a video camera; a tip slidably assembled into the main body, wherein the tip has a retracted position and at least one extended position with respect to the main body, a position selector is mounted to the main body and is connected to the tip; and a flexible element which due its flexibility also functions as an auto-adjustable guide for receiving endotracheal cannulas or tubes of different diameters.

A device for insertion in a tracheostoma which includes a cylindrical body having a longitudinal axis, a flexible flange which is provided on an outer surface of the device body and has unfolded configuration which it extends essentially from the outer surface of the body to the outside and has a folded configuration in which it is folded in the direction towards the longitudinal axis of the device body, as well as a pin-shaped insertion aid having a means for retaining the flange in its bided orientation, wherein the flange is formed by at least two wings each of which have a recess proximate a tip of the wing, in which the retaining means is removably introduced, and the wings have a shape memory that orients the wings, when unrestrained, away from the longitudinal axis of the device body.

The invention relates to a disinfection device, in particular to a medical disposable sterile reinforced trachea cannula disinfection device. The invention provides the medical disposable sterile reinforced trachea cannula disinfection device which is capable of performing automatic disinfecting, automatic positioning and automatic covering. The medical disposable sterile reinforced trachea cannula disinfection device comprises a base, a disinfection box, water tanks, spray heads, water spraying mechanisms and a supporting mechanism, wherein the disinfection box is arranged on the base; the water tanks are arranged on the two sides of the outer wall of the disinfection box; the spray heads are arranged on the two sides of the lower part of each water tank, and the four spray heads are all connected with the disinfection box; the water spraying mechanisms are connected between the two water tanks; and the supporting mechanism is mounted in the disinfection box. By arranging the water spraying mechanisms, the water spraying mechanisms cooperate with the supporting mechanism, a trachea cannula can be disinfected, and besides, the trachea cannula can be supported. A covering mechanism cooperates with a positioning mechanism, so that the trachea cannula is prevented from being in excessive contact with air to influence disinfection work.

The invention discloses a preparation method of a polyvinyl chloride material used for medical trachea cannulas. The preparation method comprises following steps: step 1, by weight, ingredients are delivered into a high speed mixer for 20 to 40min of stirring and mixing; and step 2, an obtained uniformly mixed material is delivered into a double-screw extruder for fusion, plasticizing, extrusion, and pelleting so as to obtain the polyvinyl chloride material. Preparation method flow is relatively short; operation is simple; cost is low; the preparation method is friendly to the environment, and is high in economic benefits. Compared with the prior art, the polyvinyl chloride material used for medical trachea cannulas possesses excellent biocompatibility and safety, and performance better than that of related products on the market.

The invention relates to the field of medical instruments, in particular to a breathing circuit for respiratory infectious diseases. The breathing circuit comprises a conversion joint, the conversionjoint opposite to the machine end of a trachea cannula extends into a cannula as one, an isolation sleeve is inserted into and sleeved by the cannula orifice, the bottom of the isolation sleeve is provided with crossing grooves that sputum suction tubes can pass through, at least three branch parts of the crossing grooves are provided, the top of the isolation sleeve extends outwards to form a outer edge, the lower end surface of the lower outer edge is in stop fit with the end surface of the cannula orifice, the cannula orifice is provided with a sealing ring which is in limit fit with the lower outer edge of the isolation sleeve, and the sealing ring is provided with a sealing cover which is in sealing fit with the opening of the sealing ring; and a blocking plate is arranged below the isolation sleeve. The breathing circuit can protect medical personnel, effectively controls the spread of diseases such as bacteria and viruses, is convenient and practical in structure, not only protects the health of patients, but also protects the health of medical personnel and the air environment of medical places.

The invention discloses a upper and lower end fixed trachea cannula fixing device. The device comprises a fixed frame and a rotating sleeve, sliding grooves are formed in the top and the bottom of thefront face of the fixed frame, a sliding rod is fixedly mounted in the sliding groove; the sliding rod is sleeved with a sliding support, a trachea fixing pipe is fixedly installed in the sliding support, the end, away from the trachea fixing pipe, of the top of the fixing support is sleeved with a fixing bolt, a fixing arc plate is fixedly installed on the side, close to the trachea fixing pipe,of the fixing screw, adjusting screws are fixedly installed at the two ends in the rotating sleeve, and a rotating ring is fixedly installed outside the rotating sleeve. The trachea fixing pipe, thefixing bolt and the fixing arc plate are arranged; the trachea cannula is inserted into the trachea fixing pipe, the fixing bolt is rotated to enable the fixing arc plate to move towards the inside ofthe trachea fixing pipe, so that the trachea cannula is fixed, and due to the arrangement of the sliding groove, the sliding rod and the sliding support, when medical staff need to completely exposethe oral cavity of a patient, only the fixing support or the sliding support needs to be pulled.

The invention belongs to the field of biomedical materials, and in particular relates to a tracheal catheter loaded with an antimicrobial peptide MDC coating as well as a preparation method and applications of the tracheal catheter. For the tracheal catheter, antimicrobial peptide MDC is adopted as the antibacterial agent, chitosan gel is adopted as the immobilization and slow release substrate, the antimicrobial coating is applied to the surface of the tracheal catheter, and then the tracheal catheter loaded with the antimicrobial peptide MDC coating is prepared. The sequence of the antimicrobial peptide MDC is as shown in SEQ ID NO:1. The tracheal catheter loaded with the antimicrobial peptide MDC coating provided by the invention has the remarkable antimicrobial property, and can effectively prevent bacterial colonization and growth. Therefore, after the tracheal catheter loaded with the antimicrobial peptide MDC coating provided by the invention is applied to the artificial tracheacannula and the breathing machine, the occurrence of trachea cannula and breathing machine associated pneumonia can be reduced or delayed, the economical burden of medical treatment is reduced, the physical and psychological pain of patients is alleviated, and the prospect is broad.

The invention provides a multifunctional airway management system. The multifunctional airway management system comprises a trachea cannula assembly, an interface panel, a control unit, a processing unit, a monitoring display unit and a supporting device, wherein the interface panel, the control unit, the processing unit and the monitoring display unit are all mounted on the supporting device; thetrachea cannula assembly is connected with the interface panel; the processing unit is in signal connection with the control unit and the monitoring display unit respectively; the interface panel comprises five panel connectors; and the five panel connectors are connected with near ends of five pipelines in the trachea cannula assembly respectively. The multifunctional airway management system realizes three-in-one airway management equipment with an airway sealing air leakage and secretion monitoring function, an airway speculum function and an airway management function, can realize real-time monitoring and accurate control, and has the advantages of small infection probability and low artificial participation degree.

The invention relates to the technical field of trachea cannula body sealing detection, in particular to a special detection device for a medical trachea cannula body sealing test, which comprises a trachea cannula body and a bottom plate, a pushing sliding table is mounted on the bottom plate, and a clamping assembly platform is mounted at the upper end of the pushing sliding table. A clamping mechanism used for clamping a trachea cannula body is installed at the upper end of the clamping assembly platform, a vertically-arranged air cylinder support is further fixedly installed at the upper end of the bottom plate, and an action air cylinder is installed on the side, away from the clamping assembly platform, of the air cylinder support. The movement direction of the action air cylinder and the movement direction of the pushing sliding table are positioned on the same straight line. The device is provided with the differential pressure sensor, and the differential pressure sensor is connected and matched with a computer, so that the sealing detection of the medical trachea cannula body can be conveniently and quickly realized, particularly, the production efficiency can be greatlyimproved when the device is matched with a production line, and the device is simple and reasonable in structure and low in manufacturing cost.

The invention discloses a multifunctional tee joint which comprises a main pipe. One end of the main pipe is provided with a first connecting end for being connected with a trachea cannula. The other end of the main pipe is provided with a second connecting end. A third connecting end for being connected with a breathing machine is arranged on the outer side wall of the main pipe. The second connecting end is provided with an elastic sealing piece which comprises a sealing body and a sealing cover. The sealing body and the sealing cover are connected through a connecting belt. A step through hole which is communicated with the two end faces is formed in the center of the sealing body in the axis direction. A large-diameter hole end of the sealing body is in fastening connection with the second connecting end. The sealing cover is arranged at a small-diameter hole end of the sealing body in a covering mode. According to the multifunctional tee joint, air leakage during an operation can be avoided, and accordingly operation safety is greatly improved.

Disclosed is a trachea cannula fixator. The trachea cannula fixator comprises a fixator body; the fixator body comprises an arc-shaped fixing plate, and the arc-shaped fixing plate comprises a fixing area located in the middle and oral cavity nursing areas located on the two sides of the fixing area; the fixing area corresponds to the oral cavity part of a patient, and the left-right length of the fixing area accounts for 1/3-1/2 of the total left-right length of the arc-shaped fixing plate; a first adjusting assembly used for fixing and adjusting a trachea cannula and a second adjusting assembly used for placing and adjusting a sputum suction tube are arranged in the fixing area; and in this way, the trachea cannula and the sputum suction tube are fixed to the fixing area, and the fixing effect of the trachea cannula and the sputum suction tube is achieved by operating the first adjusting assembly and the second adjusting assembly. By arranging the oral cavity nursing areas, the oral cavity of the patient can be cleaned conveniently, and practicability is high.