67results about How to "Adequate drainage" patented technology

The invention discloses bioprotein sponge and a preparation method thereof. According to the characteristics that internal cells of a human body and an animal body adapt to cell growth environments, the bioprotein is freezed into a dry sponge shape through freeze drying technology by utilizing intercellular substances as controlled-release carrieres of growth factors and acts on the trauma of the human body or the animal body in controlled-release medicament feeding mode. The preparation method of the bioprotein sponge changes the traditional preparation process, adopts S / D virus inactivation, and adds protective agent to reduce probability of virus cross infection of people and livestock simultaneously. The CM cation chromatographic purification process improves purity of bioprotein, promotes stanching and tissue union effect of the bioprotein sponge and reduces clinical side effect. An ultrafiltration process is adopted to replace a dialysis process, so that preparation period is shortened, activity of the bioprotein is protected, and production cost is reduced. A method of heating inactivation virus replaces the method of cobalt60 radiation sterilization, so that the fact that radiation rays bring damage to products is avoided, the activity of the bioprotein is protected, and safe and reliable use of products in clinical application is achieved.

The invention discloses a bandage dressing special for limb war wound first aid, and belongs to the technical field of medical dressings. The bandage dressing is composed of a dressing body and a bandage; the dressing body sequentially comprises an inner layer dressing, a middle layer dressing and an outer layer dressing from the side making contact with the war wound part; the inner layer dressing adopts a non-woven fabric layer formed by blending chitosan fibers and oxidized regenerated cellulose and is used for stopping bleeding and absorbing wound secreta; the middle layer dressing adopts a polyvinyl formal spongy layer and is used for absorbing oozing liquid discharged from meshes and pressing to stop bleeding; the outer layer dressing adopts a cotton weaving gauze layer and is used for fixing and binding; the inner layer dressing is rich in antibacterial agent, and multiple penetrating drainage holes are formed in the inner layer dressing in the thickness direction; a two-way semi-transparent film is arranged between the middle layer dressing and the outer layer dressing. The bandage dressing has the advantages of being reasonable in structural design, efficient in stopping bleeding, resistant to infection, capable of moisturizing and promoting healing, convenient to use and the like.

The invention belongs to the technical field of clinical medicinal treatment, in particular to a wound treating device which comprises a semi-transparent membrane, medical sponge and a porous negative pressure drainage tube positioned in the medical sponge, and also comprises a medical ozone water generator and an ozone water input pipe connected with the medical ozone water generator, wherein the medical ozone water generator is positioned in the medical sponge. The invention has simple structure, low cost, convenient and simple use and accurate treatment effect.

The invention relates to a medical appliance for treating wound surfaces, in particular to an atomization administration and intermittent vacuum sealing drainage (VSD) device for wound surfaces, which comprises a coating material, a drainage tube and a negative pressure source, wherein one end of the drainage tube, which is provided with a side hole, is inserted into the coating material, and the other end of the drainage tube is connected with the negative pressure source. The device provided by the invention is characterized by also comprising an ultrasonic atomizer and an atomized gas introducing tube, wherein one end of the atomized gas introducing tube is connected with the ultrasonic atomizer, and the other end of the atomized gas introducing tube, which is provided with a side hole, is inserted into the coating material. The VSD technology is used by the device for forming a relatively sealed space on a wound surface, and ultrasonic atomized gas is injected between every two times of VSD, so that the wound surface is in a wet, low-oxygen and weakly acidic environment, thereby being favorable for repairing the tissues of the wound surface.

The invention relates to a medicinal chitosan dressing which comprises the constituents of (by weight parts) chitosan 5-10, polyvinyl alcohol 6-15, gelatin 5-10, glycerol 10-20, water 45-75, and the preparing process consists of swelling with water, dissolving through water-bath, mixing solutions homogenously, adjusting pH to 4-7, filtering and removing foams.

The invention discloses a chitosan cervix uteri anti-microbial membrane and a preparation method thereof. The chitosan cervix uteri anti-microbial membrane has a structure of a circular plate, bulged flangings are formed at the periphery of the circular plate, and a convex body is arranged in the center of the reverse side of the circular plate. The chitosan cervix uteri anti-microbial membrane is prepared from the following raw materials in percentage by mass: 0.5 to 5.0 percent of chitosan iodine, 2.0 to 10.0 percent of polysorbate-20, 0.1 to 2.0 percent of acetic acid, 0.1 to 5.0 percent of hydroxypropyl methyl cellulose, 1.0 to 10.0 percent of gelatin, 1.0 to 10.0 percent of glycerol and the balance of purified water. The chitosan cervix uteri anti-microbial membrane is prepared from novel biological materials synthesized by the chitosan and derivatives thereof by processes of freezing, vacuum drying and the like according to characteristics of human anatomy, pathology, physiology and the like, has a shape of a thin curved surface, and can be in full fit with pathological tissue, absorb wound exudate and eliminate necrotic tissue by being attached to cervix uteri surfaces outside uterine cavities, so that wounds are drained fully; and sterilizing inflammation-diminishing active factors are released in a sustained way at the targeting position to promote wound union effectively. The chitosan cervix uteri anti-microbial membrane is suitable for patients who suffer from gynecological cervical diseases.

The invention discloses a closed type negative-pressure drainage tube. The closed type negative-pressure drainage tube comprises a drainage tube body, which is composed of a hollow front end, a hollow rear end, and a shaft unit connecting the front end and the rear end; wherein the shaft unit is movably provided with a fixing unit in a sleeving mode; the rear end of the drainage tube body is connected with a power device, and the drainage tube body can rotate axially. The closed type negative-pressure drainage tube is simple in structure and convenient to use; the fixing unit is sutured onto human skin, the drainage tube body is powered by the power device to rotate slowly, so that drainage blind areas can be avoided, thorough drainage can be ensured, and blocking of the drainage tube body caused by tissues or muscles can be avoided; during treatment, the closed type negative-pressure drainage tube does not require frequent replacement and accordingly avoids secondary injury to patients.

The invention relates to a plate-fin heat exchanger capable of being used for a floating platform. The heat exchanger comprises a shell, at least one refrigerant even distributor and at least one core, wherein the refrigerant even distributors and the cores are arranged in the shell. At least one refrigerant inlet is formed in the upper portions of the side walls of the shell, a gas phase refrigerant outlet is formed in the top of the shell, and at least one liquid phase refrigerant outlet is formed in the bottom of the shell. The number of the refrigerant inlets, the number of the liquid phase refrigerant outlets and the number of the refrigerant even distributors are the same as the number of the cores. The cores are in one-to-one correspondence to the refrigerant inlets, the refrigerant even distributors and the liquid phase refrigerant outlets. The refrigerant even distributors are connected with the refrigerant inlets. The cores are located below the refrigerant inlets and the refrigerant even distributors. Each core comprises an inner runner, an outer runner, inlet pipes and outlet pipes. Each inner runner is divided into multiple layers, identical or different kinds of cooled media can flow in the different layers of each inner runner, and the multiple layers of each inner runner where the identical kind of cooled media flow share one corresponding inlet pipe and outlet pipe. The inlet pipes and the outlet pipes penetrate the shell to stretch to the outside. The outer runners communicate with the shell.

The invention provides a novel ultrasonic guided puncture washing needle, and belongs to the technical field of medical instruments. The novel ultrasonic guided puncture washing needle comprises an inner core, a needle tube and an electric knife, wherein the inner core, the electric knife and the needle tube are detachably arranged. The washing needle has two use states, wherein one state is thatthe inner core is inserted into an inner cavity of the needle tube, and the other state is that one end, which is provided with a cutting knife, of the electric knife is inserted into the inner cavityof the needle tube,, wherein the cutting knife is used for crushing viscous hydrops or fiber tissues. The needle tube is in a double-cavity structure and comprises an inner cavity and an outer cavity; the outer cavity is wrapped outside the inner cavity; the outer cavity is used for feeding water and flushing liquid; and the inner cavity is used for sucking diluted hydrops. The novel ultrasonic guided puncture washing needle not only can fully smash the viscous hydrops or the fibrous tissues, but also can dilute the viscous hydrops while sucking the hydrops, so that a better treatment effectis achieved.

The invention discloses an abdominal drainage tube, comprising an outer drainage tube and an inner irrigating tube; one end of the inner irrigating tube is provided with an inflating balloon and is inserted into the outer drainage tube, the other end of the inner irrigating tube is provided with an irrigating tube, a vent tube and an air access tube communicated with the inflating balloon, a drainage passage is formed between the inner wall of the outer drainage tube and the outer wall of the inner irrigating tube, and the sidewall of the outer drainage tube is provided with a plurality of side drainage holes. Protections such as the inner irrigating tube and the inflating balloon are arranged in the outer drainage tube, good anti-blocking effect can be achieved, effective continuous irrigation and drainage are achieved, problems due to the drainage tube being placed not in position due to tube change for blocking problem are avoided, frequently adjusting the position and direction of the drainage tube is not required, and both patients' pain and workload of medical staff are relieved.

The invention discloses special dressing used after burn wound mesh grafting and belongs to the technical field of medical dressing. The side, making contact with a wound portion, of the dressing sequentially comprises an inner layer, a middle layer and an outer layer. The inner layer of the dressing is rich in zinc ions, and a plurality of through drainage holes are formed in the thickness direction of the inner layer of the dressing. The inner layer of the dressing is formed by blending chitosan fibers and active carbon fibers and used for resisting infection, stopping bleeding, promoting healing and absorbing a small amount of wound secreta. The middle layer of the dressing is made of a polyurethane foam sponge layer and used for absorbing exudates discharged form the drainage holes of the inner layer of the dressing. The outer layer of the dressing is a cotton weaving gauze layer and used for fixing and binding. According to the special dressing, the inner layer, the middle layer and the outer layer are matched, design is ingenious, and the dressing has the advantages of stopping bleeding, resisting infection, preserving moisture, promoting healing, being good in drainage performance and the like, and can effectively used for wound healing after burn wound mesh grafting.

The invention discloses a flushing drainage tube which comprises a drainage tube and a flushing tube, the middle section of the flushing tube runs inside the drainage tube, parts of the flushing tube are arranged inside the drainage tube, two ends of the flushing tube stretch out of the drainage tube, drainage holes which are distributed in staggering and unsymmetrical arrangement at intervals are formed in the lateral sides and upper side of the front end tube wall of the drainage tube, the front end of the drainage tube is in a fish mouth shape, the tail end of the drainage tube is provided with a connector which is connected with a negative pressure device, 2-3 protrudent ridges are formed in the bottom of the inside of the drainage tube, and the tail end of the flushing tube is connected with flushing fluid. According to the flushing drainage tube, the range of flushing and drainage is large, block is not prone to happening, and the indwelling time inside a body is long. Medicine flushing drainage, pure drainage and pure medicine injection can be conducted according to the needs, so that exudative blood in surgical sites can be effectively drained, the union of nidus and anastomotic stoma is accelerated, anastomotic leakage can be observed, prevented and treated, surgical site infection is avoided, and clinical application is wide in range.

The invention relates to the technical field of medical apparatuses and instruments, in particular to a double-chamber drainage tube with an anti-blocking air bag. The double-chamber drainage tube with the anti-blocking air bag is composed of a flushing tube (1) and a drainage tube (2), and comprises a head portion, a body portion and a tail portion. The head portion is round blunt, two tube openings of the double-chamber drainage tube are formed in the front end of the head portion, the periphery of each tube opening is rounded and smooth, a liquid inlet (3) is formed in or not formed in the tube wall of one side of the flushing tube, and a liquid outlet (4) is formed in or not formed in the tube wall of one side of the drainage tube. The flushing tube and he drainage tube on the tail portion are separated and form a Y shape, the tail end of the flushing tube is connected with an infusion catheter or an injection syringe, a bifurcated pipe (5) is arranged at the tail end of the drainage tube, the main tube of the drainage tube is connected with a negative pressure suction device, and the bifurcated pipe is connected with the anti-blocking air bag (6). The double-chamber drainage tube with the anti-blocking air bag is convenient to operate, due to the fact that the anti-blocking air bag is arranged, blocking articles in the tube openings can be burst through at any time, and the double-chamber drainage tube with the anti-blocking air bag is beneficial for coherent proceeding of flushing and drainage, and time and labor are saved. Due to the fact that the liquid inlet and the liquid outlet are formed in the tube wall of the head portion of the double-chamber drainage tube, the flushing and drainage on fester can be more sufficient, and damage to tissues and organs is hard to be caused.

The invention discloses an agricultural seed pesticide dressing tank with an impurity removal function. The agricultural seed pesticide dressing tank comprises a supporting base, a supporting uprightcolumn, a pesticide dressing tank body, vertical sliding chutes and a driving motor; the left side of the upper surface of the supporting base is welded with the supporting upright column which is vertically arranged, the right side of the supporting upright column is provided with the pesticide dressing tank body in parallel, and the upper end of the supporting upright column is welded with the upper part of the left side wall of the pesticide dressing tank body by a first connecting cross rod; the two side walls of the inside of the pesticide dressing tank body are welded with the vertical sliding chutes, and the lower surface of the pesticide dressing tank body is fixedly connected with the supporting base by a supporting leg; and the driving motor is mounted on the middle position of the supporting upright column. The agricultural seed pesticide dressing tank is reasonable in design, convenient to operate, capable of reducing the working strength of people, saving a pesticide and guaranteeing the uniform mixing of the pesticide and suitable for modern agricultural sowing.

The invention relates to a biliary tract inner support drainage tube and belongs to medical apparatuses and instruments. The biliary tract inner support drainage tube comprises a support drainage tube and a guiding wire placed in the support drainage tube. One end of the support drainage tube is in an oblique-face shape. Side through holes are evenly distributed in the tube wall of the support drainage tube. The support drainage tube and the guiding wire are used for replacing a T-shaped tube for being used in operative treatment of a patient with choledocholithiasis, after the choledocholith is fully taken out, the primary suture of the common bile duct is carried out without placing the traditional T-shaped tube, so operation time is shortened, operation difficulty is lowered, operation equipment cost is lowered, patient hospital staying time is shortened, hospital staying cost is lowered, postoperative complications are reduced, the patient can be recovered quickly, what is more important, the support drainage tube can be excreted out of the body along with excrement in about one week after operation, so that the patient does not need to suffer from the pain caused by long-term T-shaped tube retention, a series of complications caused by T-shaped tube placing are completed avoided, scars after operation become small, and accordingly the operation becomes more minimally invasive. If the biliary tract inner support drainage tube can be used widely and clinically, great benefit will be brought to the patient.

The invention relates to the technical field of pipeline pressured pore opening, in particular to non-welding fixing equipment for a low-pressure pipeline small-pore-diameter bore-opening machine. Thenon-welding fixing equipment comprises a short section device and an embracing device which is used for detachably fixing the short section device to a to-be-pored pipeline or the outer surface of apipeline part of a to-be-pored valve. The short section device comprises a tubular seat body, a body fixedly arranged on the seat body and a tube body fixedly arranged on the body, wherein a channel which is through up and down is arranged on the seat body; and the seat body communicates with the tube body through the channel. The embracing device comprises a downwards bent arc-shaped lower embracing ring, an arc-shaped left upper embracing ring which is bent towards the left upper side and an arc-shaped right upper embracing ring which is bent towards the right upper side. The non-welding fixing equipment can be used for replacing a leaking grease injecting nozzle under pressure online and replacing a ball passing indicator without stopping conveying a great deal of discharging natural gas resources as well as detecting pipeline sweeping replacing pore-opening detection and the like, is simple to operate, and is safe and reliable.

The invention discloses a peritoneal dialysis tube guide device. The peritoneal dialysis tube guide device comprises a guide device shell with an elongated structure; the guide device shell is provided with a peritoneal dialysis tube limiting slot, peritoneal dialysis tube limiting plates are arranged on two sides of the peritoneal dialysis tube limiting slot, and each of the two peritoneal dialysis tube limiting plates is provided with an inclined guide groove; a soft unlocking shaft, a data transmission line and a power line are penetratingly arranged in an inner channel, a CCD camera is mounted at the head end of the data transmission line, an LED cold light source is mounted at the head end of the power line, and two driving protrusion points are arranged on the peripheral surface of the soft unlocking shaft and embedded into the corresponding guide grooves respectively. By the peritoneal dialysis tube guide device provided by the invention, the internal conditions of patient's abdominal cavity can be accurately acquired though the CCD camera, and a medical worker can be guided to accurately place a peritoneal dialysis tube into the bottommost end of patient's pelvic cavity, sothat injuries of patient's organs can be avoided during operation while peritoneal dialysis liquid is fully drained.

The present invention relate to the field of medical aids, in order to solve the problem of inadequate drainage of pancreatic juice. A support tube for dilate pancreaticojejunostomy is provided, whichcomprise a support tube, a main duct provided with a drainage section, a dilation section and an extension section communicated in sequence, wherein that support tube comprises a support tube, a support tube for dilate pancreaticojejunostomy and a support tube for pancreaticojejunostomy. The outer circumferential diameter of the drainage section is smaller than the outer circumferential diameterof the expansion section, and the drainage section is provided with a plurality of drainage holes. The outer peripheral wall of the dilated segment closely fits the inner peripheral wall of the pancreatic duct. The diameter of the drainage segment is small, and the dilated segment is placed in the main pancreatic duct of the residual pancreas. The pancreatic juice is sealed on one side of the drainage segment. The drainage segment and the drainage hole are used to drain the residual pancreatic juice. At the same time, the dilated segment can effectively avoid pancreatic juice flowing to the pancreatic-intestinal anastomosis and pancreatic fistula.

The invention discloses a craniocerebral drainage tube. The front end of the craniocerebral drainage tube is of a closed bullet-shaped streamline form, drainage side holes are formed on the periphery of the craniocerebral drainage tube within a range 5mm away from the end, and four silk threads are arranged on the outer wall of the craniocerebral drainage tube and at the position 5mm away from the front end of the craniocerebral drainage tube, and are distributed on the surface of the round drainage tube uniformly with a 90-degree angle formed between every two adjacent silk threads. The four silk threads move from a near drainage tube end to a far end by about 15mm and then penetrate through the wall of the craniocerebral drainage tube from outside to inside, move to the drainage tube far end in a tube cavity continuously and parallelly by a certain distance and then penetrate the wall of the craniocerebral drainage tube from inside to outside according to four angles, and are respectively connected with four iron metal sheets. The silk threads penetrating out the drainage tube far end and the iron metal sheets connected with the silk threads are all located in a sliding groove in an independent transparent plastic bag on the periphery of the tube wall at the craniocerebral drainage tube far end. The four iron metal sheets can slide in the groove under attraction of a magnet pen outside the bag wall so as to pull the silk threads, and the silk threads simultaneously pull the front end of the craniocerebral drainage tube to bend to a set direction.

The invention discloses a disposable three-way drainage bag which comprises a drainage nut, a medical three-way joint and a drainage bag. A first joint of the medical three-way joint is movably sleeved with the drainage nut, a limiting boss for limiting disengagement of the drainage nut is arranged at the first joint, the drainage nut is matched with a central venous catheter, a pigtail drainage tube or an external ventricular drainage tube through threads, and on the condition that the drainage nut and the drainage joint are connected together, the first joint is inserted into the drainage joint; the medical three-way joint is further provided with a second joint and a third joint, an isolation nut is arranged on the second joint, and the third joint is connected with the drainage bag through a pipeline. By arranging the medical three-way joint for conversion between the existing drainage bag and the drainage tube, due to the medical three-way joint, a user can achieve lock between the drainage tube and the drainage bag, sufficient drainage is achieved, drainage after catheterization, washing and drug injection are facilitated, reverse flow of drainage liquid is avoided, and infections are effectively avoided.

The invention belongs to the technical field of artificial fish farming equipment, and particularly relates to a selector for selecting fish in the processes of artificially farming alepidote fish such as sea eel, Asian swamp eel and misgurnus anguillicaudatus and hard-fin fish such as maccullochella peelii. The selector includes a main box, a selecting sieve and a fish discharging pipe; the selecting sieve is composed of an outer frame and sieve ribs, and the section of the sieve ribs is in a long oval shape or a flat oval shape; when fish are selected during spraying of spray water from thetop of the selector, the fish bodies are sufficiently lubricated and guided, the irritability of the fish is reduced, and the situation is avoided that after getting away from water, the fish strugglevigorously on the selecting sieve and are twisted in traditional tiny sieving ribs, and accordingly epidermis damage and the irritability are caused; in this way, it is easy for the fish which do nothave fins, have fierce temperament and easily struggle vigorously when getting away from the water to intactly pass through sieve gaps, the sieving efficiency is improved, disease infection which iscaused by the epidermis damage and the irritability after selection is reduced, and the quantity of fish dying from oxygen deficiency is reduced.

The invention discloses an internal orifice excision drainage device for treating anal fistula. The internal orifice excision drainage device comprises an anoscope and a broach and is characterized in that the anoscope comprises an anoscope body, a guide part and a handle, wherein the guide part is arranged at the bottom of the anoscope body, the handle is arranged on the right side face of the anoscope body, a first V-shaped groove and a second V-shaped groove are formed in the anoscope body, the first V-shaped groove is formed in the front side face of the anoscope body, and the second V-shaped groove is formed in the rear side face of the anoscope body; and a V-shaped blade is arranged on the edge of the broach, and the handle is arranged at the bottom of the broach. After an internal orifice is determined, the anoscope is placed in an anal tube, the top end of the opening of each V-shaped groove is placed above the internal orifice, the internal orifice is excised to the anal margin through the bevel broach, the internal orifice is completely excised and forms a double-V shape, drainage is sufficient, and the incision of the anal margin can extend properly so that drainage and healing can be facilitated. A simple operation instrument is provided for an anal fistula treatment operation, and the success rate of the anal fistula operation is greatly increased.

The invention discloses a cowpea and potato interplanting method. The method comprises steps as follows: land preparation and fertilizer application: a ridged sowing bed for sowing of potatoes is opened, deep ditches are dug on two sides of the ridged sowing bed, high ridges for erecting a shed frame for cultivating cowpeas are formed beside the deep ditches, and the high ridges extend in the east-west direction; in early February, germination accelerating treatment is started to be performed on the potatoes, and the potatoes are sowed in the ridged sowing bed after spring comes and are harvested in June; in the middle ten days of June, the cowpeas are sown in the high ridges, the distance between every two cowpea plants is 20-25 cm, scaffold insertion and vine guiding are performed beforethe cowpeas put forth vines, bamboo scaffolds are obliquely inserted along the high ridges and firmly and crossly tied, and the intersections of the bamboo scaffolds are 1.4-1.6 m higher above the ground. By means of the method, the cowpeas and the potatoes can be planted simultaneously, the field area can be effectively utilized, space of subsoil is utilized, and upper space formed by the bambooscaffolds is effectively utilized for growth of the cowpeas.

The invention discloses an oil immersion rust prevention device for motor stator machining. The oil immersion rust prevention device comprises an oil tank, an ejection plate, an air cylinder, an installing ring, a motor and a rotating shaft; and the oil immersion rust prevention device is characterized in that the oil tank is arranged on a support, a vertical plate is arranged on the top of the oil tank, the ejection plate is arranged on the vertical plate, the air cylinder is arranged on the vertical plate and is provided with a power line and a piston rod, the installing ring is arranged onthe piston rod through a fastening bolt, a fixing plate is arranged on the installing ring, the motor is arranged on the side wall of the oil tank, the power line is arranged on the motor, one end ofthe rotating shaft is arranged in a bearing, the other end of the rotating shaft is connected with the motor, and a stirring plate is arranged on the rotating shaft. By means of the oil immersion rustprevention device, a through groove is formed in the fixing plate, a bearing rod is vertically arranged on the fixing plate, liquid in the oil tank conveniently flows to the position above the fixingplate from the position below the fixing plate through the through groove, liquid oil can be in sufficient contact with a motor stator, and the oil immersion effect of the motor stator is improved.

The invention relates to a composite stereoscopic sheet which is simple in structure, good in guiding effect, better in absorbing effect and more thorough in absorption. A plurality of projections and retainer wall type connecting parts for connecting the projections are evenly arranged on one surface. The retainer wall type connecting parts are larger than the projections in fiber density. The projections are regularly octagonal. One projection and the projection adjacent to the same overlap on one side of the regular octagon, and the overlapped side serves as one retainer wall type connecting part; four projections sequentially connected end to end enclose a second projection; the retainer wall type connecting parts are higher than the second projections in fiber density.

The invention discloses a pair of drainage biopsy forceps and drainage biopsy equipment, and belongs to the technical field of medical equipment. The pair of drainage biopsy forceps comprises a forceps body and a forceps head, wherein the forceps body is connected with the forceps head through a forceps shaft; the forceps head is a conical forceps head; a drainage tube through hole is formed in the forceps head; the forceps head comprises a first half forceps head and a second half forceps head which are arranged symmetrically; a contact surface between the first half forceps head and the second half forceps head is a plane; the drainage tube through hole is symmetrically formed in the first half forceps head and the second half forceps head; the drainage tube through hole passes through the forceps shaft from one end of the forceps head along the length direction of the forceps head, and extends to the other end of the forceps head. The drainage biopsy equipment comprises a guide wire and the pair of drainage biopsy forceps in the technical scheme, wherein the diameter of the guide wire is smaller than the diameter of the drainage tube through hole; the front part of the guide wire is provided with a positioning bump; the outer diameter of the positioning bump is greater than the outer diameter of the front end of the forceps head. The pair of drainage biopsy forceps and the drainage biopsy equipment can be put into abdomen safely, are convenient to use, and are suitable for various models of drainage tubes.

The invention discloses a high lie-on-the-side position supporting device of a patient. The supporting device comprises a supporting plate, an upper base and a lower base, the upper and lower bases can be detachably fixed to the supporting plate and are characterized in that an upper body cavity is formed in the upper base, a lower body cavity is formed in the lower base, the upper body cavity isprovided with arm cavities, the arm cavities are communicated with the upper body cavity, the complete body of patient lying on the side is cooperatively accommodated by the upper body cavity, the lower body cavity and the arm cavities, arm fastening belts are arranged at the arm cavities, and supporting soft cushions are placed in the upper and lower body cavities. The supporting device has the advantages that high lie-on-the-side position mechanical ventilation treatment is helped to be conducted on severe acute respiratory distress syndrome, the risk of being hurt by the pressing by lying on the side for a long term of the patient is reduced, and the patient is located at a high lie-on-the-side position, so that the draining of sputum in the lung is more thorough to help the treatment and rehabilitation of the severe acute respiratory distress syndrome.

The invention relates to a double-cannula-type fistula-creating catheter. The double-cannula-type fistula-creating catheter comprises an inner drainage tube, an outer tube, an air bag and a liquid injection channel. The length of the outer tube is less than that of the inner drainage tube. Two ends of the outer tube are provided with through holes allowing the inner drainage tube to penetrate. The outer tube is arranged on the inner drainage tube in a sleeving mode by means of the through holes. The outer tube can slide into the inner drainage tube along an axial direction of the outer tube. The air bag comprises a first air bag arranged at the front end of the outer wall of the inner drainage tube. The liquid injection channel comprises a first liquid injection channel which is arranged in the tube wall of the inner drainage tube and communicated with the first air bag.