32 results about "Biliary drainage" patented technology

1. The name of the product of this design: bile duct drainage tube. 2. Purpose of the product of this design: A disposable soft catheter used for drainage of bile after common bile duct incision and exploration. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention relates to the technical field of medical instruments, in particular to an intelligent bile flow monitoring T tube which comprises a microprocessor and a T tube body, a pressure sensor is arranged in the T tube body, the T tube body is formed by communicating a transverse tube and a longitudinal tube, the two ends of the transverse tube are close to the bile duct and the intestinal tract of the liver respectively, and drainage is conducted to the outside from the end of the longitudinal tube. A first flow sensor is arranged on the transverse tube close to the liver bile duct to measure the total flow of bile, a second flow sensor is arranged close to the intestinal tract to measure the amount of bile flowing into the intestinal tract, and a third flow sensor is arranged in the longitudinal tube to measure the flow of bile discharged out of the body. The microprocessor collects and analyzes sensor data through the information collecting and processing module so as to calculate bile flow and pressure, and judges the bile flow direction condition when the third flow sensor data is abnormal. The bile monitoring precision can be improved, in-vitro drainage amount abnormity can be quickly diagnosed, the postoperative management efficiency is enhanced, the complication risk is reduced, the postoperative safety of a patient is improved, and the function and reliability of a bile drainage system are improved by means of an innovative technology.

The utility model relates to the technical field of medical instruments, in particular to a multifunctional biliary tract drainage tube with double-cavity sacculus auxiliary expansion through a PTCD (percutaneous transluminal compact disc) way, which comprises a drainage tube, a sacculus expansion tube group, a water injection tube and a sacculus, the fixing shell set comprises a drainage tube fixing shell and a water injection tube fixing shell arranged on the periphery of the drainage tube fixing shell, the drainage tube fixing shell is connected with the drainage tube, and the water injection tube fixing shell is connected with the water injection tube; the internal and external intercommunication window is communicated with a first area on the drainage tube and a second area, corresponding to each other, on the water injection tube, so that bile outside the water injection tube flows into the drainage tube through the internal and external intercommunication window. The multifunctional biliary tract drainage tube for assisting expansion through the PTCD way double-cavity balloon integrates biliary tract expansion and bile drainage, operation is reduced, and operation cost can be greatly reduced.

The invention discloses a drainage catheter for a biliary tract and a biliary tract negative pressure drainage system. The biliary tract negative pressure drainage system comprises a negative pressure instrument, a liquid storage device, a drainage catheter and a catheter fixator. Wherein the negative pressure instrument is used for providing negative pressure and carrying out pressure detection. The liquid storage device is connected with the negative pressure instrument, so that negative pressure is formed in the liquid storage device through the negative pressure instrument. The drainage catheter comprises a connector, a catheter body and a pull wire. The connector is used for being connected with a liquid storage device and used for conveying liquid into the liquid storage device. The tube body is connected with the connector and used for drainage of liquid. The stay wire is arranged in the tube body in a penetrating mode so as to pull the far end of the tube body to form a pigtail-shaped circle. The catheter fixator is connected with the catheter body of the drainage catheter and used for fixing the catheter body to the skin surface near the biliary tract. When the far end of the catheter body forms a pigtail-shaped circle, the center line of the drainage catheter and the center line of the drainage section are located in the same plane, so that the drainage tip does not protrude, and the safety of biliary tract drainage is effectively improved.

The utility model relates to a biliary tract drainage device which comprises a drainage tube, a catheter seat and a locking connector. The drainage tube comprises a tube body section and a pigtail section extending at the far end of the tube body section, the tube body section is provided with a central cavity and a plurality of peripheral cavities which extend in the length direction, and the pigtail section is provided with an inner cavity communicated with the central cavity. The near end of the catheter body section is fixedly connected with the catheter base, and the catheter base is detachably connected with the locking connector. A plurality of first drainage holes are formed in the side wall of the pigtail section, the first drainage holes are communicated with an inner cavity of the pigtail section, and when the pigtail section forms a pigtail ring, the first drainage holes are located in the inner side of the pigtail ring. A second drainage hole is formed in the side wall of the far side of the catheter body section and communicated with the central cavity. The locking connector is provided with an inner cavity extending in the length direction, and when the locking connector and the catheter base are in the assembled connection state, the inner cavity of the locking connector is at least communicated with the center cavity. According to the biliary tract drainage device, the size of the catheter connector can be reduced.

The invention discloses a biliary tract drainage tube with a particle carrying radiotherapy function. The biliary tract drainage tube comprises a tube body, a stay wire and a stay wire traction fastening device, a bendable pigtail section is arranged at the front end of the tube body, a drainage cavity and a particle cavity are axially arranged in the tube body, and drainage holes communicated with the outside and the drainage cavity are formed in the tube wall of the pigtail section. The stay wire extends to the pigtail section along the drainage cavity and passes through stay wire holes at the head and tail of the pigtail section, and two ends of the stay wire extend out of the rear end of the tube body and converge to the fastening device. The front end of a first connector sleeve of the fastening device is fixedly connected with the rear end of the tube body and communicated with the drainage cavity through a connector inner tube, and a second connector sleeve loosely sleeves the connector inner tube. One end of the pull wire is fixed to the first connector sleeve, the other end of the pull wire movably penetrates out of the second connector sleeve, the pigtail section can be bent by pulling the pull wire, the second connector sleeve is rotated to a set angle, the pull wire is clamped through angle dislocation, and the pigtail section is kept in the bent state. Bending of the pigtail section can be conveniently controlled, the anchoring state can be stably maintained, and the safety and reliability of clinical catheterization can be effectively improved.

The utility model discloses a kind of anti-coming-off pipe device for clinical biliary tract drainage tube, it is related to medical instrument field, specifically for a kind of anti-coming-off pipe device for clinical biliary tract drainage tube, including the fixing plate for fixing biliary tract drainage tube, the both sides of the fixing plate are respectively equipped with adjusting groove, the fixing plate is equipped with the positioning column of adjusting groove insertion, the tail end of the positioning column is equipped with positioning plate, the sliding slot that is equipped with with positioning plate cooperation on fixing plate, the side of the fixing plate is equipped with the buckle plate that is with positioning column cooperation, two described buckle plate between are equipped with the pull rope for fixing biliary tract drainage tube joint, the utility model solves the biliary tract drainage tube of current clinical use, it is easy to influence the normal flow guide of biliary tract drainage tube, but because pipeline is long also easy to sway, it is easy to scratch patient skin, there is another common way is just with a rope to bind the interface of the other end of drainage tube, but the tightness of biliary tract drainage tube cannot be adjusted using this way.

The utility model discloses a double-layer nasobiliary drainage tube capable of effectively protecting tissues, which comprises an inlet end part at the front end of the nasobiliary drainage tube, which firstly enters a human body, and an elastic tubular supporting tube structure with elasticity, and meshes or first drainage holes which are not smaller than drainage holes are arranged on the elastic supporting tube structure corresponding to the drainage hole area; the flexible tube structure is attached to the outer side of the elastic supporting tube structure, or the elastic supporting tube is embedded in the flexible tube structure, the flexible tube structure is made of flexible rubber materials, the flexible rubber materials include but not limited to related medical flexible materials such as silica gel materials and latex materials, and the elastic supporting tube structure is made of memory alloy fibers. The memory alloy fibers are nickel-titanium memory alloy fibers or other alloy fibers; in addition, the drainage tube is connected with a three-way connector capable of adjusting an open passage. Through the arrangement, it is guaranteed that the soft pipe structure provides direct contact protection; the elastic supporting tube structure provides elastic buffer protection, reduces damage to tissues, and can also ensure the safety of leading-out and leading-in of liquid.

The invention belongs to the technical field of medical instruments. In order to solve the problems that an existing anti-blocking bile drainage device cannot judge whether a pipeline is blocked or not in time, a drainage tube cannot be dredged in time, and use is very inconvenient, the novel bile drainage device comprises the drainage tube, a filter, a flushing fluid filling assembly, a reminding and driving combined assembly and a flushing fluid outlet assembly; the bile reacts with the purple litmus reagent in the reminding and driving combined assembly, and the color becomes red after the purple litmus reagent reacts with the bile, so that a medical worker is reminded of blockage of a drainage pipeline, impurities filtered at a filter can be cleaned in time, the reminding and driving combined assembly can also apply pressure to the flushing liquid filling assembly, and the flushing liquid filling assembly is prevented from being blocked. Therefore, the flushing fluid filling assembly is communicated with the drainage tube, the flushing fluid enters the drainage tube to perform back flushing on the filter, manual operation is not needed in the whole back flushing process, and the back flushing device is simple and convenient to use.

The utility model relates to the technical field of medical instruments, in particular to a nasobiliary drainage assembly which comprises a nasobiliary and a drainage component, and the drainage component comprises a drainage bag, a connecting tube, an external threaded tube, an internal threaded tube, a cleaning tube, a control mechanism, a first liquid inlet hopper and a second liquid inlet hopper. The nasobiliary duct is inserted into a patient and used for biliary drainage of the patient, the connecting tube and the nasobiliary duct are connected through the outer threaded tube and the inner threaded tube, threaded connection installation is adopted, sealing performance is achieved, disassembly and replacement can be convenient, the nasobiliary duct is prevented from being taken out when the drainage bag is replaced, the number of times of inserting the drainage bag into the body of the patient is reduced, and pain of the patient is relieved. When the communicating pipe is blocked, the communicating pipe and the nasobiliary duct are sealed through the control mechanism, blockages in the communicating pipe are washed out by injecting water into the cleaning pipe, so that the smoothness of the connecting pipe is guaranteed, and if the connecting pipe and the nasobiliary duct are difficult to clean, the connecting pipe and the nasobiliary duct can be cleaned or replaced after being detached.

This application relates to a bile filtration and collection device with heat preservation for bile reinfusion, belonging to the field of medical device technology. The bile filtration and collection device with heat preservation for bile reinfusion of this application includes a stirring assembly, a heating assembly, a filtering assembly, and a nutrient assembly. The stirring assembly includes a stirring drum and a stirrer, with the stirrer configured to rotate within the inner cavity of the stirring drum. The heating assembly includes a heating base disposed below the stirring drum for heating the bile within the drum. The upper end of the filtering assembly communicates with a bile drainage bag, and the lower end communicates with the inner cavity of the stirring drum for filtering the bile. The nutrient assembly is disposed around the periphery of the stirring drum for delivering nutrients into the drum. The bile filtration and collection device with heat preservation for bile reinfusion provided by this application utilizes the filtering assembly, nutrient assembly, stirring assembly, and heating assembly to perform bile filtration, nutrient supplementation, stirring, and heating, improving the convenience and comfort of bile reinfusion and enhancing the patient's treatment efficacy and comfort.

The utility model relates to the technical field of medical instruments, in particular to a biliary tract drainage tube. The biliary tract drainage tube comprises a catheter body, a locking traction wire and an adjusting and shaping mechanism, the catheter body comprises a liquid cavity, a first threading cavity and a second threading cavity, the first threading cavity and the second threading cavity are located on the two sides of the liquid cavity, the locking traction wire penetrates in from the first threading cavity and penetrates out from the second threading cavity, and the end, penetrating out of the second threading cavity, of the locking traction wire is connected with the adjusting and shaping mechanism. The adjusting and shaping mechanism can tension or loosen the locking traction wire; the catheter body is provided with a tip, and the tip can contract to form a closed circular ring under the action of the locking traction wire. The biliary tract drainage tube provided by the utility model realizes effective separation of the locking traction wire and the liquid cavity, so that the liquid cavity in the middle can be smoothly and efficiently dosed, the locking traction wire is easily retracted and released, the phenomena of air leakage and liquid leakage are relieved, external bacteria are not easy to invade, and secondary infection is not caused.

A bile drainage and reinfusion device includes a nasobiliary tube, a drainage bag, a sealed cylinder, a heating mechanism, a filtering mechanism, and a reinfusion tube, wherein the drainage bag is disposed at an output end of the nasobiliary tube, the sealed cylinder is connected to an output end of the drainage bag, the heating mechanism and the filtering mechanism are disposed inside the sealed cylinder to heat and filter drained bile, and the reinfusion tube is connected to an output end of the sealed cylinder to reinfuse the heated and filtered bile into a patient. The drained and reinfused bile is heated and filtered by a heating mechanism and a filtering mechanism, so as to remove and intercept impurities such as tissue fragments in bile, prevent the impurities from entering the patient, and prevent tubing blockage caused by bile viscosity.

The anti-displacement bile duct support comprises a supporting rod, a drainage tube section I, a drainage tube section II and a drainage tube section III, the drainage tube section I, the drainage tube section II and the drainage tube section III are sequentially connected from head to tail, the two ends of the supporting rod are connected with the drainage tube section I and the drainage tube section III respectively, and the drainage tube section II and the supporting rod are arranged in parallel and have elasticity. The arc-shaped spring can be relatively bounced off; communicated channels are formed in the drainage tube section I, the drainage tube section II and the drainage tube section III and are used for placing guide wires. The bile duct stent is placed in a common bile duct through an endoscope to drain bile, the drainage tube section II and the supporting tube are bounced off in an arc shape, and displacement of the bile duct stent can be avoided; and no damage is caused to the bile duct wall and the nipple mucosa in the stent taking-out process.

The utility model belongs to the technical field of medical auxiliary equipment, and discloses a drainage device. The drainage device comprises a common bile duct; the first drainage tube is communicated with the side face of the common bile duct, and the side face of the first drainage tube is provided with a first boundary; the second drainage tube is communicated with the end, away from the common bile duct, of the first drainage tube, the free end of the second drainage tube extends towards the common bile duct, the free end of the second drainage tube is located on the side, close to the common bile duct, of the first boundary, and the free end of the second drainage tube is provided with a one-way flow limiting structure; the one-way flow limiting structure can limit fluid outside the second drainage tube to flow to the outlet tube in the second drainage tube, the first end is communicated with the end, away from the common bile duct, of the first drainage tube and the end, away from the common bile duct, of the second drainage tube, the second end extends in the direction away from the common bile duct, and the outlet tube can be selectively circulated or cut off. By means of the biliary drainage device, biliary can be drained out of a body and can also be drained into an intestinal canal when needed.

The invention discloses a tumor clinical interventional therapy percutaneous liver puncture biliary drainage auxiliary device, comprising: a clamping protection mechanism comprising a clamping frame assembly and a gooseneck assembly which is arranged on the clamping frame assembly and can be adjusted in position along the vertical direction; the complication monitoring assembly comprises a monitoring host installed on the clamping frame assembly, and a temperature sensor and an ultrasonic flow sensor which are electrically connected with the monitoring host; the temperature sensor is used for monitoring the body temperature of a patient in real time, and the ultrasonic flow sensor is connected with the drainage tube and used for achieving non-invasive monitoring of the bile flow velocity; the binding belt assembly is used for being fixed to the waist and abdomen of a patient in a surrounding mode, and the binding belt assembly is provided with a first through hole used for a drainage tube to pass through and a second through hole used for a temperature probe of a temperature sensor to pass through; the problems that an existing percutaneous liver puncture biliary tract drainage auxiliary device is poor in drainage tube protection effect and insufficient in complication risk monitoring capacity are solved.

The invention discloses a postoperative care drainage device for an intensive care unit, and belongs to the field of medical instruments, the postoperative care drainage device comprises a drainage cylinder, a storage cylinder, a fixing mechanism and an adjustable piston rod, the storage cylinder is inserted below the drainage cylinder, the fixing mechanism is rotatably arranged on the side of the drainage cylinder, and the adjustable piston rod is arranged on the inner sides of the drainage cylinder and the storage cylinder. Biliary drainage is conducted in a negative pressure auxiliary drainage mode, compared with a traditional mode of drainage only through gravitational potential energy, the requirement for the wearing position of the drainage device is lower, so that wearing is more flexible, meanwhile, bile is stored separately and isolated from a liquid inlet, discharged bile is prevented from flowing back, and the drainage effect is better. And the delivery capacity can be adjusted according to bile discharge conditions, so that the drainage efficiency is adjusted.

The utility model relates to the technical field of biliary tract stents, and discloses an easily taken-out biliary tract stent which comprises a biliary tract supporting rod, bile drainage holes and wing plates, the bile drainage holes are evenly distributed outside the biliary tract supporting rod, the wing plates are assembled on the two sides of the outer portion of the biliary tract supporting rod, and flat supporting pipes are assembled on the two sides of the biliary tract supporting rod. Barbs are evenly distributed on the outer portion of the flat supporting tube, baffle rings are assembled on the two sides of the outer portion of the biliary tract supporting rod, and the baffle rings are annular shading rings and assembled on the outer portion of the biliary tract supporting rod. According to the biliary tract stent easy to take out, the situation that the whole biliary tract supporting rod slides in the body of a patient is avoided, meanwhile, the biliary tract supporting rod is conveniently driven by an external instrument through the flat supporting pipe designed in a flat mode, and the problem that a traditional cylindrical stent is prone to slipping when driven through a tool is solved; and therefore, under the condition of frequent driving, the slips in the body of a patient, and the pain of the patient is increased.

This utility model belongs to the field of medical supplies, specifically relating to a nasobiliary drainage tube storage and fixing device. Its features include a detachable housing with a narrow opening and a wide opening. The housing is composed of a first housing and a second housing connected by a fixing structure. The inner side of the first housing is open, and a rotatable first turntable is disposed within it. A first rotating shaft is mounted on the first housing, with its first end fixedly connected to the first turntable. The second end of the first rotating shaft extends beyond the outer side of the first housing, and a first handle is fixedly connected to its second end. A first fixing buckle with a notch is provided on the first turntable. This utility model, with its first and second turntables, respectively corresponds to the winding of narrow and wide drainage tubes, thus meeting the needs for storing tubes of different diameters.

The invention discloses a biliary stent and a preparation method thereof, and relates to the technical field of medical instruments. The biliary stent is of a concentric tubular structure and comprises a fastest degradation inner layer, a sub-fast degradation middle layer and a slowest degradation outer layer from inside to outside, and a plurality of supporting pieces are arranged between the layers. The used materials are all degradable materials with high safety and excellent biocompatibility. The provided biliary stent is a novel biliary stent which can be degraded in a gradient mode and is excellent in biocompatibility. The degradation process can be actively managed, the resilience force of the bile duct wall can be effectively resisted in the degradation period, continuous and reliable bile drainage is provided for bile flow, and the blocking risk is effectively avoided; finally, all degradation products are safely absorbed by the body, no foreign matter is left, secondary operation for taking out is not needed, patient pain and medical cost are reduced, and the method is expected to be vigorously popularized.

The invention relates to the field of medical instruments, and provides a biliary tract pressure measuring drainage tube. The biliary tract pressure measuring drainage tube comprises a short tube, a long tube, a partition plate, a first baroreceptor and a second baroreceptor. Bile drainage holes are formed in the peripheral wall of the short tube. The long pipe comprises a first port and a second port, and the first port is connected to the peripheral wall of the short pipe; the partition plate is located in the long tube, one end of the partition plate extends to the first port, the other end of the partition plate extends to the second port, the partition plate divides the first port into a first sub-port and a second sub-port, and the first sub-port covers the biliary drainage hole; the partition plate divides the long pipe into a first semicircular pipe and a second semicircular pipe, the second semicircular pipe is provided with an ascites drainage hole, and the partition plate comprises a first surface and a second surface; the first baroreceptor is arranged at one end, close to the first seam allowance, of the first surface; the second pressure sensor is arranged on the second surface and is opposite to the ascites drainage hole. According to the biliary tract pressure measuring drainage tube provided by the embodiment of the invention, accurate biliary tract pressure data without abdominal pressure influence can be obtained.

The utility model discloses a percutaneous liver puncture biliary tract drainage tube which comprises a tube body and a needle head which are connected with each other. The tube body comprises an annular tube wall and a drainage opening located in the center of the annular tube wall. A water inlet, a flushing cavity, a flushing opening and a fixing device are arranged in the annular pipe wall; the other end of the water inlet is connected with a water supply device; the flushing opening is communicated with the flushing cavity and close to the needle head; the fixing device is located between the flushing opening and the water inlet and used for fixing the pipe body. The drainage opening is communicated with the needle. The biliary tract flusher can be used for flushing the biliary tract in the puncture process, the treatment effect is improved, and the overall stability and the comfort level of a patient can be improved.

The invention relates to a structural tube called 'H drainage tube for biliary tract drainage', and aims to establish natural drainage of bile from the bile duct to the small intestine. An H drainage tube is an internal biliary drainage tube and plays a crucial role in biliary drainage under the condition of malignant biliary obstruction such as pancreatic head cancer, spent testis papilla, duodenum, bile duct cancer and hepatocellular carcinoma, and due to local advanced diseases and metastasis, the Hdrainage tube and the H drainage tube are not suitable for curing surgery. The H drainage tube plays an important role in the case of anatomical structure changes, gastric outlet obstruction and previous gastric bypass surgery. Unlike existing palliative methods for malignant biliary obstruction, H drainage tubes provide liver function recovery and nutritional condition improvement, reduce systemic endotoxemia and enhance the likelihood of immune response by internal drainage and recovery of bile flow into the enteric cavity. The H drainage tube has the capabilities of flushing, dredging under the condition of obstruction, collecting bile samples and performing contrast imaging on bile ducts. Thus, it can also be used in temporary methods intended to improve the overall condition of a patient and to prepare for surgical resection or performing palliative radiotherapy or chemotherapy. The H drainage tube can also be applied to patients with highly non-resectable lesions of the common hepatic duct and is intended for biliary tract drainage and guiding bile into the small intestine. Postoperative complications are minimized due to the design and method of placement of the H drainage tube. It significantly improves the quality of life of a patient, which is the main objective of palliative treatment. It is important to the patient that it has a positive psychological impact, without external drainage and without the need to use bags for biliary tract contents, thereby achieving better quality of life.

The invention discloses a portable hepatobiliary surgery postoperative biliary drainage collecting and metering device, and relates to the field of biliary drainage metering, the drainage collecting and metering device is configured at an abdominal cavity or a hepatobiliary wound of a human body, is used for guiding bile in the hepatobiliary to be discharged, and comprises a bag type drainage device and a metering device, the bag type drainage device is provided with a bag body, a guide tube and a one-way guide structure. The bag body is a liquid storage bag with scales on the outer wall and positioning blocks on the two sides. The metering device is arranged on the outer side of the bag type drainage device and is used for metering the volume change and the volume of liquid in the bag body; the metering device comprises a fixing unit for fixing the bag body and a metering unit for metering the volume of the bag body; according to the bile drainage collecting and metering device, through the arrangement of the liquid sensing film and the one-way guiding structure, accurate metering of bile drainage amount and one-way bile drainage are achieved, and the safety, accuracy and convenience of the bile drainage process of postoperative patients in the hepatobiliary surgery department are further improved.

1. Name of the product in this design: Biliary duct drainage needle. 2. Purpose of this design: For medical puncture under ultrasound guidance. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design points: Combined state diagram 1. 5. Other situations requiring explanation: Component description: Figure 1 shows the combined state of components 1 and 2. 6. Other situations requiring explanation: This product has a variable length, and components 1 and 2 are drawn in an abbreviated form.

The present invention provides an anti-displacement anchoring stent for bile duct drainage during ERCP, characterized in that: it comprises an anchoring stent body; wherein the anchoring stent body has an anchoring member and a tumor positioning member; the anchoring member is convexly arranged on the surface of the anchoring stent body; the tumor positioning member is concavely arranged on the anchoring stent body. The stent can play the role of anchoring and preventing displacement.

The utility model discloses an intrahepatic bile duct drainage tube, especially an intrahepatic bile duct drainage tube with an included angle, comprising: a pipe body, the front end of which is thickened in a non-bending area, forcing the bending of the area with thinner wall to form an included angle alpha, and the side holes are uniformly distributed on the two sides of the pipe segment of the included angle alpha. The utility model solves the technical problem of reducing the risk of displacement or slipping of the intrahepatic bile duct drainage tube during the intrahepatic bile duct drainage process. In the utility model, the front end of the intrahepatic bile duct drainage tube is thickened in a non-bending area, forcing the bending to occur in the area with thinner wall, accurately controlling the position and angle of the bending point, forming an included angle at the front end of the intrahepatic bile duct drainage tube, and reducing the risk of displacement or slipping of the drainage tube during the intrahepatic bile duct drainage process, which is suitable for the scene requiring long-term drainage (such as malignant obstruction that cannot be operated).

The invention provides an operation kit for a choledochoscope operation. Relates to the technical field of operation kits, in particular to an operation kits for choledochoscope operation, which comprises an outer wrapping cloth for wrapping, a sealing adhesive tape for preventing the operation kits from being scattered is attached to the outer wrapping cloth, and a surgical instrument placing frame disc is arranged on the outer wrapping cloth. According to the operation kit for the choledochoscope operation, the interior of an operation instrument containing frame disc is divided into a plurality of containing areas through a first movable partition plate, a second movable partition plate, a first fixed partition plate and a second fixed partition plate, and the containing areas are used for containing a hydrops bag, a splash-proof piece, haemostatic forceps, scissors and a biliary tract drainage dilator; the large hole towel and the small hole towel are placed in an isolated manner, so that the phenomena that the surfaces of the surgical instruments are abraded, deformed or damaged and the performance and the service life of the surgical instruments are affected due to the fact that the surgical instruments collide with one another easily are prevented.

The utility model relates to the technical field of medical instruments, in particular to a disposable double-cavity internal and external drainage tube which comprises a drainage tube body and a needle core, the middle of the drainage tube body is provided with double cavities, the surface of one end of the drainage tube body is respectively provided with an inner drainage port and an outer drainage port, and the surface of one end of the inner drainage port is provided with a protective sleeve cap. A flow stopping clamp is arranged at one end of the protective sleeve cap, developing rings are arranged at the two ends of one side of the drainage tube body, and a medicine loading groove, an outer drainage stopping end and an outer drainage hole are sequentially formed in the surface of the bottom end of the drainage tube body from left to right. And meanwhile, a plurality of groove bodies are designed at the tail section of the external drainage device, so that a doctor can load chemotherapeutic drugs or particle devices to achieve a certain treatment effect, and the problem that intestinal juice of the duodenum flows back to cause infection in the biliary tract is effectively reduced.