34results about How to "Prevent retrograde infection" patented technology

The invention relates to an anti-backflow and blockage-proof negative pressure drainage device, which comprises a liquid inlet valve spool (2), a liquid drainage valve spool (7), left and right valve bushes (1 and 5), left and right valve bonnets (4 and 9), a needle barrel connecting tube (6), a liquid outlet connecting tube (12), a left spring (3) and a right spring (8). The liquid inlet valve spool (2) which only allows body liquid to flow rightwards is disposed in the left valve bush (1), the liquid drainage valve spool (7) which only allows the body liquid to flow to a right lower direction is arranged in the right valve bush (5), and the needle barrel connecting tube (6) and the liquid outlet connecting tube (12) are respectively connected with the right valve bush (5) via glue; and the body liquid can be led out via vertical movement of a piston (11) in a needle barrel (10) and then is drained to a container. The anti-backflow and blockage-proof negative pressure drainage device has the advantages that the device is smooth in drainage, not easy to cause blockage and high in drainage efficiency, can prevent backflow of the body liquid under the condition that negative pressure is instable or is removed suddenly, avoids possibility of infection caused by backflow of the body liquid, and is convenient in use and easy to be controlled by medical staffs and family members of patients.

The invention relates to a backflow-prevention anti-blocking drainage device with a large suction amount. The drainage device comprises a liquid inlet valve body (1), a liquid inlet valve core (2), a liquid inlet valve spring (3), an upper valve cover and a lower valve cover (4 and 10), a needle cylinder piston (5), a piston rod (6), a liquid discharging valve body (7), a liquid discharging valve core (8) and a liquid discharging spring (9), wherein the liquid inlet valve core (2) only allowing a liquid to flow downwards is arranged in the liquid inlet valve body (1), and an insertion hole for a liquid inlet pipe (11) is formed in the upper left part of the liquid inlet valve body (1); the liquid discharging valve core (8) only allowing the liquid to flow leftwards is arranged in the liquid discharging valve body (7); and an insertion hole of a liquid discharging pipe (13) and a duct allowing the needle cylinder piston (5) to move leftwards and rightwards are formed in the left side and in the upper right part of the liquid discharging valve body (7) respectively. The needle cylinder piston (5) moves leftwards and rightwards continuously, so that the liquid can be drained and discharged to a container. The backflow-prevention anti-blocking drainage device with a large suction amount has the advantages as follows: smooth drainage is realized, the drainage amount is large, retrograde infection of the liquid is prevented, blocking is avoided, and continuous drainage can be realized.

The intelligent in-situ implanted artificial bladder consists of urine conveying and storing system and automatic intelligent system, the former includes artificial ureter, artificial bladder body and artificial urethra; and the latter incldues pressure sensing alarm, automatic flow returning mechanisms, urine pump and controller. The present invention is used mainly for patient needling bladder reconstruction and urethra reformation owing to bladder tumor, necrotic and interstitial cystitis, traumatic bladder damage, etc. After the body's bladder is ablated, the artificial bladder is in-situimplanted into the pelvic cavityk, the artificial ureter is anastomosed with the ureter stump, the artificial urethra is anastomosed with the urethra strump, and the urine conveying and storing system is reconstructed. The present invention makes it possible for the patient to control urination time autonomously.

The invention discloses a thoracic closed drainage device for nursing in the pneumology department in the technical field of nursing assisting devices in the pneumology department. The device comprises a bottom plate, the bottom of the bottom plate movably sleeves round shafts, rolling wheels fixedly sleeve the round shafts, the two ends of the bottom plate movably sleeve threaded rods respectively, and the tops of the two threaded rods both extend to the outside of the bottom plate; gears are fixedly mounted on the outsides of the bottoms of the threaded rods, a chain is in transmission connection between the outsides of the two gears, the threaded rods are threadedly sleeved with a horizontal plate, and a dividing ruler located between the two threaded rods is fixedly mounted on the right side of the top of the bottom plate. Through the cooperation among the gears, the chain and the threaded rods, the two threaded rods can be synchronously rotated by rotating one threaded rod, so that ascending and descending of the horizontal plate are realized; through the cooperation between the horizontal plate and the dividing ruler, a liquid collecting bottle can be adjusted to the portion60 cm below an opening of the chest cavity, backflow of a drainage liquid can be effectively prevented, and the phenomenon of retrograde infection can be effectively avoided.

The invention discloses a pleural cavity water seal drainage device, which comprises a drainage catheter, a negative pressure regulating valve, a water injection port of a negative pressure monitoring window, a supporting foot and a drainage joint. A hook is provided, and a sampling hole is provided inside the outer shell; the head of the drainage catheter is fixedly connected with a joint, the outside of the joint is wrapped and fixed by an antibacterial sheath, and the end of the drainage catheter is connected to the sampling hole; the surface of the outer shell is inlaid A panel, the panel is provided with a water injection port, and the water injection port is connected with the outer shell, the surface of the panel is provided with a negative pressure monitoring window, and the surface of the panel is marked with the water level line of the water seal cavity. The water-sealed drainage device for the chest cavity has the advantages of simple structure, easy manufacture, small volume, convenient portability, good drainage effect, safety and reliability; it has the function of preventing regurgitation, improves the safety factor of the device, and avoids retrograde infection inside the patient's chest cavity.

The invention discloses a built-in hidden urinary catheter for the male. The urinary catheter comprises a head part, a tube part and a mechanical control valve located in the tube; the head part is fixed in the urinary bladder cavity, and the head part is provided with a urine inlet; the tube part is arranged in the male urethra, and the tail end of the tube part is provided with a urine outlet; the mechanical control valve is opened under the function of external force, and urine enters the urinary catheter through the urine inlet and flows out of the urine outlet and is discharged out of thebody through the external urethral orifice. The urinary catheter has the advantages that the urinary catheter is slightly shorter than the male urethra and does not stay out of the body, the risk ofbacterial infection is reduced, and the situation is prevented that the urinary catheter is dragged out due to misoperation of a patient and the urethra is damaged; moreover, the inconvenience of carrying a urine bag by the patient suffering from urinary incontinence for a long time is overcome, the damage of carrying the urine bag for a long time to the urinary bladder muscles is reduced, the patient can live normally accordingly, the appearance of the urinary catheter is the same as that of a normal person, the life quality of the patient is improved to a certain degree, and the psychological stress of the patient is reduced.

The invention relates to the field of a medical material, and in particular to a preparation method of a silver-carried multilayer film coating biliary tract support frame. The method comprises the steps of: dropping 0.01-5mg/ml heparin solution into a biliary tract support frame body, spin coating, dropping three-steaming water into the biliary tract support frame body, spin coating, dropping 0.01-10mg/ml chitosan nano silver-carried solution into the biliary tract support frame body, spin coating, and circulating the process to obtain the silver-carried multilayer film coating biliary tractsupport frame, wherein the rotation speed of the spin coating is 250-5000 revolutions, and the spin coating time is 10-50 seconds. The surface of the prepared silver-carried multilayer film coating biliary tract support frame is more flat, and the silver-carried multilayer film coating biliary tract support frame has the functions of anti-bacterium, anti-virus and anti-mycete, so that the unobstructed period of the biliary tract support frame can be prolonged, and the antidromic infection of the biliary tract can be avoided.

The invention relates to a negative-pressure double-sleeve drainage tube which comprises an outer sleeve and an inner dredging sleeve. The negative-pressure double-sleeve drainage tube is characterized in that a plurality of convex strips are evenly distributed on the inner side wall of an inner section of an outer sleeve body in the circumferential direction, holes are formed in the centers of the convex strips, the holes of the convex strips converge with and are communicated with a channel formed in the outer end side wall of the outer sleeve body, a circle of groove is formed in the inner wall of an outer section of the outer sleeve body in the circumferential direction, and an opening, corresponding to the channel, is formed in the groove and is communicated with the channel. After the technical scheme is adopted, it is ensured that the in-cavity position of the outer sleeve is not moved, various blockages such as blood clots, tissue fragments and mixed proteins are simply and effectively cleared, smooth drainage is easily restored, passive drainage is safely and efficiently changed into initiative drainage, a best drainage effect is achieved and is the priority among priorities of conservative treatment means, and accordingly possible second operation is avoided.

Disclosed is a bile duct anastomosis stent, comprising a stent main body made of degradable material which is acceptable by people. The stent main body takes the shape of a tube and has a diameter which is suitable for putting in a bile duct. Each of the two sides of the outer surface of the main body is provided with a circle of protuberance for fixing the pouch line knots at the broken ends of the bile duct. The bile duct anastomosis stent has the advantages that the bile duct anastomosis stent is easy to operate, quick, short in anastomosis time and low in cost and has no complicating disease after the operation.

A control valve able to automatically prevent the body fluid from flowing reversely is composed of a valve cavity with liquid inlet at one end and liquid outlet at another end, a liquid inlet opening-closing part arranged at the liquid inlet, and a reverse flow resistant part.

The invention relates to the field of connecting devices, and provides a magnetic connecting device for a pipeline. The magnetic connecting device comprises a folding magnetic ring (2) and a shell (3), wherein the folding magnetic ring (2) is positioned in a groove of the shell (3), and the shell (3) is jointed on the inner side or outer side of the pipeline. Under the action of a certain external force, the magnetic ring is disengaged, and extraction of medical tubes such as a drainage tube due to pulling of a fixing sewing thread or adhesive tape is avoided.

The invention provides a safety-type three-cavity balloon catheter. The safety-type three-cavity balloon catheter comprises a pipe body, wherein a branching pipe is arranged at the bottom of the pipe body; and a medical non-return valve is arranged at the pipe orifice of the branching pipe. When the safety-type three-cavity balloon catheter is in use, as the branching pipe is arranged at the bottom of the pipe body, and the medical non-return valve is arranged at the pipe orifice of the branching pipe and matched with an infusion apparatus connector, so that infusion by a needle head is not required, and the pipe body is prevented from being punched; and the medical non-return valve can be kept closed, and an infusion apparatus is unobstructed after being connected with the medical non-return valve in a pressing manner and keeps the urinary catheter closed after being pulled out to effectively prevent retroinfection. The safety-type three-cavity balloon catheter is convenient to operate and less in operation steps, and is directly connected with the washing fluid infusion apparatus to realize needle-free use, and the safety valve is used for preventing leakage and infection.

The invention discloses a split-type bladder irrigation drainage liquid container. The split-type irrigation liquid container comprises a latex tube, a primary fluid reservoir, and a secondary fluid reservoir. The latex tube is provided with a one-way valve; the upper portion of the primary fluid reservoir is provided with a first inlet, the bottom of the primary fluid reservoir is provided with a first outlet, a first valve is arranged in the first outlet, and a vent is arranged on the primary fluid reservoir; the opening of the secondary fluid reservoir is provided with a reservoir cover, a second inlet is arranged in the reservoir cover, and the lower portion of the secondary fluid reservoir is provided with a second outlet; the latex tube is connected with the bladder of a patient, the outlet of the latex tube is connected with the first inlet, the first outlet is connected with the second inlet, and the second outlet is provided with a second valve. The drainage liquid container not only facilitates pouring out of drainage fluid, but also prevents retrograde infection, accurately measures and records output of the patient, and provides basis for assessment, observation and treatment of the patient.

The present invention provides a waste liquid bag for automated peritoneal dialysis with disinfection tablets. The waste liquid bag for the automated peritoneal dialysis with the disinfection tabletscomprises a liquid storage bag body, a disinfection bag, a liquid discharging pipe, a disinfection pipe and a drainage pipe, the drainage pipe is integrally formed on an upper portion of the liquid storage bag body, the disinfection pipe is connected to one side of a lower portion of the liquid storage bag body and connected with the disinfection bag, the liquid discharging pipe is connected to the other side of the lower portion of the liquid storage bag body, a disinfection clamp is arranged on the disinfection pipe, a liquid discharging clamp is arranged on the liquid discharging pipe, disinfection tablets are arranged in the disinfection bag, a liquid discharging cover is arranged at an end part of the liquid discharging pipe, and a cover cap is arranged at a end part of the liquid discharging pipe. The waste liquid bag is provided with chlorine-containing disinfection effervescent tablets, the chlorine-containing disinfection effervescent tablets can be quickly dissolved in liquid, and the waste liquid bag can timely perform a harmless treatment on waste liquid of peritoneal dialysis, prevents infectious diseases, and is made of transparent polyethylene materials, convenient to observe clarity of the waste liquid of the peritoneal dialysis and conductive for observation of diseases.

The invention discloses a multifunctional controllable bladder fistulization tube. The multifunctional controllable bladder fistulization tube comprises a liquid guide tube, an extension tube and a urine bag, wherein a liquid drainage one-way valve is arranged at the top end of the liquid guide tube, a liquid drainage tube is connected to the top end of the liquid drainage one-way valve, an inner cavity of the liquid guide tube is divided into a liquid cavity, a line cavity and an air cavity, a pressure probe is arranged in the line cavity, a pressure sensor is arranged at the outer end of the line cavity, an alarm is arranged at one side of the pressure sensor, the outer end of the air cavity is connected with a ventilation one-way valve, a plurality of drainage openings are formed in the bottom of a liquid outlet cavity, a fixing ring buckle sleeves the periphery of the liquid guide tube, an air bag is arranged at the bottom of the fixing ring buckle, and the air bag communicates with the air cavity. Urination can be carried out in a toilet through the extension tube, urination can also be carried out through the urine bag, and use is more convenient; and meanwhile, the fistulization tube is fixed through the fixing ring buckle and the air bag, so that the air bag is prevented from moving in the bladder to continuously stimulate a triangular area of the bladder to cause bladder spasm discomfort.