39 results about "Stone extraction" patented technology

The utility model relates to a ureter stone removal catheter in the technical field of medical instruments, which comprises a sheathing canal, one end of the sheathing canal is fixedly connected with a swirling cavity, the other end of the sheathing canal is connected with a bending part, the sheathing canal is provided with a pressure detection hole and a pressure detection channel, and the pressure detection hole is communicated with the pressure detection channel. The other end of the pressure detection channel is connected with a detachable pressure sensor. The pressure sensor is reasonable in structure, the detachable pressure sensor is arranged, when the pressure sensor is not used, the sensor body can be detached to be stored conveniently, and when the pressure sensor is used, the sensor body and the sensor chip are connected conveniently, rapidly and reliably; the pressure sensor can monitor accurate and reliable data through the pressure detection channel, high pressure in a minimally invasive cavity is avoided, and the safety rate of an operation and the calculus removing efficiency are remarkably improved.

The invention provides a guide wire calculus removing mesh basket and application thereof. The guide wire calculus removing net basket comprises a net basket body, a guide wire, a net basket cap, an outer sheath tube and a handle, the tail end of the guide wire is connected with the head end of the net basket cap, the net basket cap is arranged outside the head end of the outer sheath tube, the net basket body is inserted into the outer sheath tube through the tail end of the outer sheath tube, one end of the net basket body is connected with the tail end of the net basket cap, and the other end of the net basket body is connected with the handle. The handle is located outside the tail end of the outer sheath tube. The device can be inserted through various instrument channels such as a nipple incision knife, SpyGlass or a pancreatic and biliary duct imaging system forceps channel, and multi-scene calculus removal treatment is achieved; in the process of releasing the mesh basket, the head end of the soft guide wire crosses the calculus and enters the bile duct at the far end more easily, release of the mesh basket is facilitated, and the calculus can be extracted by pulling back the mesh basket.

The invention provides a gall-stone removing and crushing device under a laparoscope, and belongs to the technical field of gall-stone treatment. Comprising a catheter, the top of the catheter is fixedly connected with a first camera, the catheter is internally provided with a bag sealing assembly which is used for forming a controllable closed cavity in a gall bladder and wrapping a target calculus, and the bag sealing assembly comprises a first guide tube slidably connected to the interior of the catheter. The bag sealing assembly, the calculus removing assembly and the calculus crushing assembly are arranged and are matched with one another for use, and the integrated process of wrapping, grabbing, crushing and collecting is formed through the integrated design of a nested guide pipe, the bag sealing assembly constructs a closed cavity to isolate an operation area, and the calculus removing assembly accurately grabs calculus and fixes the calculus in a bag; the stone crushing assembly efficiently crushes target stones in a closed environment, internal and external double-view-angle monitoring is achieved through double cameras in the whole process, and the risk of gallbladder injury caused by the fact that an incision is exposed to the outside in a traditional operation is avoided through cooperation of the three assemblies.

The invention discloses a lithotomy and lithotripsy handle and a lithotomy and lithotripsy integrated medical instrument, and belongs to the technical field of medical instruments, the lithotomy and lithotripsy handle comprises an operation part and a guide sheath tube capable of collecting a mesh basket, the guide sheath tube is installed on the operation part, the operation part is provided with an operation device, and the operation device at least has a lithotomy mode and a lithotripsy mode; the lithotomy and lithotripsy integrated medical instrument comprises a mesh basket and a lithotomy and lithotripsy handle. In the calculus removing mode, the operation device can convert external force applied by an operator into driving force for driving the mesh basket to move in the axial direction of the guiding sheath tube, and the mesh basket is driven to be released or recycled through the guiding sheath tube so that calculus removing can be achieved. In the lithotripsy mode, the operation device can convert external force applied by an operator into lithotripsy force for driving the mesh basket to be collected to the guiding sheath tube in the axial direction, so that the mesh basket collects the lithotripsy under the constraining force of the guiding sheath tube. The lithotripter has the advantages that lithotripsy can be carried out during lithotripsy in the bile duct and during lithotripsy, a lithotripsy handle does not need to be externally connected independently, economic cost is low, operation is easy, and the risk of cross infection is avoided.

The application discloses a kind of stone collecting devices, belong to pipeline conveying technical field, to solve the problem that existing passive stone collecting device is easy to block, the stone collecting device includes main slurry discharge pipeline (1), first rockfall pipeline (2) and first stone storage tank (3), main slurry discharge pipeline (1) contains main slurry inlet section (11) and main slurry discharge section (12), the upper end of first rockfall pipeline (2) is connected with main slurry discharge pipeline (1), the upper end of first rockfall pipeline (2) is located between the inlet (121) of main slurry discharge section and the outlet (112) of main slurry inlet section, the lower end of first rockfall pipeline (2) is connected with the inlet of first stone storage tank (3), and the first filter grid (4) is arranged at the inlet (121) of main slurry discharge section. First rockfall pipeline and first stone storage tank are arranged before first filter grid, and large-diameter slag stone can be filtered out and enter first stone storage tank through first rockfall pipeline, which not only can avoid blockage, but also can improve screening efficiency.

The invention discloses hepatic duct calculus taking-out forceps which comprise a connecting hose and a control assembly, the control assembly comprises a support connected with one end of the connecting hose, a connecting shaft is arranged on the support, a first rotating disc and a second rotating disc are rotationally connected to the connecting shaft, and traction blocks are connected to the outer sides of the first rotating disc and the second rotating disc; control cables are connected to one sides of the two traction blocks, the two control cables are arranged in the connecting hose in a penetrating mode, and a coating assembly is arranged at the free end of the connecting hose; the control assembly can control the calculus removing clamp arranged at the front end of the connecting hose, when the device needs to be used for clamping calculus in the hepatic duct, the device can be stably held firstly, then the end, provided with the coating assembly, of the connecting hose is placed into a channel established in the operation, and the calculus removing clamp can be used for removing the calculus in the hepatic duct. An operator can enable the first rotating disc and the second rotating disc which are connected with the handle and the clamping plate to synchronously rotate by separating the finger ring from the rubber ring, so that the two stone taking clamps are close to each other, and target stones can be clamped through the stone taking clamps.

The utility model discloses an interchangeable stone taking and crushing net basket, and relates to the technical field of medical instruments, the interchangeable stone taking and crushing net basket comprises a handle, a metal sheathing canal, a plastic sheathing canal and a traction steel wire, the metal sheathing canal and the plastic sheathing canal are detachably connected with the handle, a finger sleeve is slidably arranged on the handle, and the traction steel wire is arranged on the finger sleeve. And the traction steel wire is arranged in the metal sheath tube or in the metal sheath tube in a penetrating manner and is detachably connected with the fingerstall. In the calculus removing process, the plastic sheath tube and the metal sheath tube can be conveniently interchanged for use, so that repeated insertion and withdrawal of an endoscope and a calculus net basket are not needed, the operation difficulty is effectively reduced, and the operation inconvenience of an operation is reduced to a certain extent.

This invention relates to a magnetic stone retrieval basket handle, belonging to the field of medical device technology. This magnetic stone retrieval basket handle achieves axial movement and circumferential rotation of the basket's core wires through a non-contact transmission method using magnetic coupling between an outer and inner magnet. Combined with the guiding effect of a steel tube, it ensures the smoothness and precision of the basket's opening, tightening, and rotation operations, avoiding the jamming and loosening problems of traditional mechanical transmission. It simplifies the handle's transmission structure, reduces mechanical wear, and extends the handle's service life. Magnetic transmission eliminates the need for threads, drill holes, or other structures on internal transmission components, facilitating cleaning and disinfection, reducing the risk of infection, and improving the stability and safety of intraoperative stone retrieval operations.

The invention discloses a non-destructive diagnosis and treatment system which comprises an energy platform, a display platform, a visual tube mirror, a camera shooting assembly, a mesh basket assembly, an umbrella-shaped assembly, a direction adjusting assembly and the like, the umbrella-shaped assembly is passively opened when the mesh basket assembly passes through the umbrella-shaped assembly, and the umbrella-shaped assembly is automatically closed when the mesh basket assembly retracts into the visual tube mirror. According to the non-destructive diagnosis and treatment system, through the arrangement of the energy platform (host), the visual tube lens, the mesh basket, the matched tools and the like, non-destructive human body natural cavity operation can be achieved, and the situation that organs or tissues in a human body cavity are damaged by instruments in the visual diagnosis, stone breaking and stone removing processes is avoided; the injury to human tissues caused by instant high heat in the lithotripsy process is avoided, and the safety of lithotripsy operation is favorably improved. The non-injury diagnosis and treatment system can be applied to the non-injury urinary lithotripsy direction and the non-injury ERCP direction, and damage and function loss caused by cutting open sphincter to organs are avoided.

The utility model relates to the technical field of surgical operation and discloses a calculus taking device for surgical operation, which comprises a shell and a calculus grabbing module, the calculus grabbing module comprises a moving frame and a screw, two ends of the screw are rotatably connected with two ends of the inner side of the moving frame respectively, and two ends of the surface of the screw are in threaded connection with threaded blocks. The bottom ends of the two threaded blocks are fixedly connected with stone taking clamps, the inner side ends of the two stone taking clamps are provided with pressure sensors, the middle of the screw rod is fixedly connected with a driven gear, a micro motor is installed at the bottom end of the movable frame, the output end of the micro motor is connected with a driving gear, and the driving gear is meshed with the driven gear. The driving gear and the driven gear are meshed with each other to drive the screw to rotate and drive the two calculus taking clamps to move oppositely to clamp a large calculus, the pressure sensor can sense the pressure in contact with the calculus, and the situation that the pressure is too large, calculus breaking is caused, and secondary infection is caused is avoided.

The utility model relates to the technical field of medical instruments, in particular to a mesh basket part of a calculus removing mesh basket and a calculus removing mesh basket system.The mesh basket part comprises a connecting part, and the connecting part is connected with a traction part of the calculus removing mesh basket system so as to drive the mesh basket part of the calculus removing mesh basket to act; the main supporting arm is a main body part of the mesh basket part; one ends of the main supporting arms are connected with the connecting part, and the other ends of the main supporting arms are connected in a matched mode to form a net basket part.

The utility model discloses an instant controllable negative pressure suction sheath which comprises a sheath tube connector, a negative pressure connector arranged on the side wall of the sheath tube connector and a sheath tube coaxially connected with the sheath tube connector. A negative pressure connector is arranged on the side wall of the sheath tube connector, and the negative pressure connector is connected with the negative pressure connector. The sheath tube comprises a first straight tube connected with the sheath tube connector, a conical tube connected with the tail end of the first straight tube and a second straight tube connected with the tail end of the conical tube. The first straight pipe is provided with a calculus removing hole for controlling the negative pressure, and the distance between the calculus removing hole and the tail end of the second straight pipe is 10 cm; the negative pressure at the tail end of the second straight pipe is adjusted and controlled through the stone discharging hole. The utility model has the advantages of smaller trauma, high calculus extraction efficiency, short calculus extraction distance, instant and controllable negative pressure, stable internal pressure of renal pelvis and the like, and has wide market prospect and good economic value.

The invention relates to the field of medical instruments, in particular to a urinary surgery calculus removing device capable of protecting mucosa, which comprises a sheathing canal, a calculus sleeving basket main body is in sliding fit in the sheathing canal, the calculus sleeving basket main body comprises a front end buffer assembly and a telescopic rod, the telescopic rod is connected with a steel wire fixing seat, and the steel wire fixing seat is connected with a central control rod. The central control rod is provided with an operating handle, and the telescopic rod is provided with a sheathing canal constraint linkage assembly and an isolating membrane assembly; the front end buffering assembly comprises a spherical head and a memory alloy buffering spring, and a spring containing cavity is formed in the spherical head; the isolating membrane assembly comprises an annular sliding rail, an isolating membrane and a memory alloy supporting ring, and when the stone sleeving basket body slides and stretches out along the sheathing canal, the sheathing canal constraint linkage assembly synchronously relieves linear constraint on the front end buffering assembly and folding constraint on the isolating membrane assembly, so that the front end buffering assembly and the isolating membrane are synchronously triggered to be unfolded. The device is used in the urinary surgery basket calculus removing operation, and the urinary system mucosa is effectively protected against damage.

An embodiment of the present invention provides a foreign body removal device, which relates to the field of medical devices and includes a foreign body removal part, an adjustment part and an operation part. One end of the foreign body removal part is woven and bundled to form a bundling part. The operation part is fixedly connected to the end of the bundling part. The adjustment part is arranged around the outside of the bundling part, and one end of the adjustment part is fixedly connected to the operation part. The overall diameter of the foreign body removal device in this application is extremely thin. Compared with traditional stone extraction basket products, the overall diameter is reduced by more than 50%, and it can be directly inserted into smaller channels. It can easily reach positions such as the biliary tract and intestine, and at the same time, it can ensure the effective rotation of the foreign body removal part under various bends, greatly expanding the application range of the treatment of foreign bodies for stone extraction.

The invention discloses a minimally invasive stone extractor for stone surgery and a using method, and relates to the technical field of medical instruments, the minimally invasive stone extractor comprises a main body, a groove is formed in the side wall of the main body, a stone extracting barrel is fixedly mounted in the groove, a stone extracting barrel is arranged at the bottom of the stone extracting barrel, and a sliding assembly is mounted in the stone extracting barrel and is in transmission connection with the stone extracting barrel; a water spraying pipe and a water return pipe are arranged at the bottom of the main body, both face the water taking stone and communicate with a first mounting head, the water return pipe communicates with a second mounting head, the first mounting head and the second mounting head are detachably connected with the outer wall of the main body, and the first mounting head is used for communicating with an external water supply system; the second mounting head is used for communicating with an external water return system. The multifunctional calculus removing device integrates multiple functions of calculus removing, flushing, suction, illumination imaging and the like, the operation steps are simplified, and the operation efficiency is improved.

The application discloses a kind of hepatobiliary surgery clinical stone extraction device, more particularly in stone extraction device technical field, including the control box and support for hepatobiliary surgery clinical treatment, the control box one side is fixed with cannula, five cavities are set in the inside of cannula, the first cavity is internally provided with air hose, and the outer end of air hose is fixedly provided with three balloons.The application disperses the crushed stone fragments by air hose, and then makes the three balloons on the air hose expand, after the expansion of three balloons, the fragments dispersed in the pipeline can be separated, then the air hose and balloon are pulled to move, and the stone fragments are moved to be taken out, which can be taken out at one time, and can avoid the accumulation of stone fragments during the process of taking out, so as to increase the resistance of taking out.

The present invention provides a front-end cap assembly and a stone extraction basket under a choledochoscope, relating to the technical field of medical devices. The front-end cap assembly provided by the present invention includes a cap body and a limit connecting piece sleeved on the cap body; a part of the cap body extending into the limit connecting piece has a plurality of through holes for threading the basket wires, and each through hole is formed on the side surface of the cap body; a limit cavity for defining the position of the basket wires is formed between the limit connecting piece and the cap body. The front-end cap assembly provided by the present invention can enlarge the opening area, reduce the opening difficulty, improve the product qualification rate, and at the same time, the outer diameter size of the cap body during processing can be reduced to 1 mm or the outer diameter size is less than 1 mm. Even if the number of basket wires is increased, there is no need to greatly increase or even increase the outer diameter of the cap body, which is more conducive to the popularization of the stone extraction technology under a choledochoscope.

The invention belongs to the technical field of medical instruments, and particularly relates to a hepatobiliary surgery clinical calculus removing device which comprises a shell tube, a groove is formed in the middle of the outer surface of the shell tube, a telescopic tube is inserted into the shell tube, a probing tube is fixedly connected to the bottom of the telescopic tube, and a calculus removing mechanism is fixedly connected to the outer surface of the probing tube; by means of the arranged calculus removing mechanism, in the clinical calculus removing process of the hepatobiliary surgery department, an air bag and a net basket are used in cooperation, when the air bag is inflated, the air bag can form a semicircular space or a space with other proper shapes, calculus can be guided to enter the net basket which is placed in advance, and the calculus can be gently contacted and pushed in the operation process; by controlling the expansion degree of the air bag, a doctor can adjust the size of the air bag and the applied pressure according to the actual situation, it is ensured that the stone can be firmly grabbed, the stone cannot be broken into smaller fragments due to excessive compression, and therefore the risk of small stone residues is avoided.

A mesh basket device capable of measuring the size of stones includes: a mesh basket, a push rod, a mode switching device, an opening size adjustment device, and an adjusting amount measuring device. The push rod is configured to drive the mesh basket to move. The mode switching device is used to switch between a measurement mode and a stone extraction mode. In the stone extraction mode, the opening size of the mesh basket remains unchanged during the movement of the mesh basket. The opening size adjustment device is connected to the mesh basket. In the measurement mode, the opening size adjustment device is configured to adjust the opening size of the mesh basket during the movement. The adjusting amount measuring device is configured to measure the adjusting amount of the opening size adjustment device, which is in a corresponding relationship with the opening size of the mesh basket.

The present invention discloses a stone removal device capable of avoiding urinary tract damage, characterized in that it comprises: a clamping head, a connecting tube, a holding handle, a connecting line, and a controller; the clamping head is controllably rotatably connected to the end of the connecting tube, the holding handle is fixedly connected to the tail end of the connecting tube, the holding handle is connected to the connecting line, and the connecting line is connected to the controller; the present invention removes stones in a physical form by designing a clamping head that opens and closes to clamp objects, thereby avoiding the use of laser lithotripsy that has a risk of damaging the human urethra; at the same time, the clamping end of the device is provided with a vibration module to help the clamping head loosen the stone on the urethral surface when clamping the stone, thereby avoiding hard tearing and damaging the urethral side wall; the inner side of the clamping head of the device is also provided with a holmium laser optical fiber, and at the same time, the entire clamping head is composed of an arc-shaped clamping handle, so that the stone can be covered in the clamping head during lithotripsy, thereby avoiding damage to the patient's urethra during the laser lithotripsy action.

The utility model relates to the technical field of calculus removing tools, and discloses a double-hook type intracavity calculus removing device which comprises an outer pipe, the top face of the outer pipe is fixedly connected with a connecting pipe, one side of the surface of the connecting pipe is fixedly connected with an auxiliary pipe and a placing pipe, the interior of the auxiliary pipe is fixedly connected with a fixing assembly, and the placing pipe is fixedly connected with the fixing assembly. A stone removing assembly is slidably connected to the interior of the containing pipe, an adjusting pipe is fixedly connected to one end of the connecting pipe, a pushing assembly is fixedly connected to the inner top wall of the adjusting pipe, and a double-hook assembly is fixedly connected to one end of the pushing assembly. According to the double-hook type intracavity stone extractor, through the arrangement of the pushing assembly and the double-hook assembly, when the double-hook type intracavity stone extractor is used, an adjusting column is pushed according to the sizes of stones, so that a supporting rod pushes a left hook and a right hook out of a cavity, an adjusting spring between the left hook and the right hook plays a role in dispersing the distance, making a frosted layer make contact with the stones and increasing friction force, and therefore the stones of different sizes are hooked; and the stone removing integrity and efficiency are improved.

The auxiliary equipment comprises a hose and a limiting column located at the top end of the hose, and a net basket mechanism is arranged between the hose and the limiting column; the mesh basket mechanism comprises a mesh basket assembly and an adjusting assembly, the mesh basket assembly comprises a first steel wire and a second steel wire, the first steel wire is of a folded structure, and a flexible shaft is arranged at the intersection of the first steel wire and the second steel wire. A mesh basket mechanism is arranged in the hose and the limiting column and composed of a mesh basket assembly and an adjusting assembly which are of a split structure, the mesh basket assembly comprises a first steel wire and a second steel wire, the first steel wire is of a folded structure, and a flexible shaft is arranged at the intersection of the first steel wire and the second steel wire. The first steel wire and the second steel wire are driven to move through pulling of the adjusting assembly and can change the angle through the flexible shaft.

The utility model provides a transsinus choledochoscope calculus removal isolation drainage device. Comprising an adhesive layer, the adhesive layer is provided with an upper side edge and a lower side edge which are opposite, and the adhesive layer is provided with a notch which is concaved inwards from the upper side edge to the lower side edge. The outlet water receiving device comprises a front surface and two side surfaces positioned on two opposite sides of the front surface, attaching parts are formed on the peripheries of the front surface and the two side surfaces, the outlet water receiving device is attached to the adhesive layer through the attaching parts, the adhesive layer, the front surface and the two side surfaces surround to form a containing space, and the containing space is provided with an upper side edge with an opening facing the adhesive layer; the side face can be divided into two folding faces through a folding line, the two folding faces can be bent along the folding line, flexible fixing pieces are arranged on the two folding faces in an extending mode, the two folding faces are oppositely bent into different angles and fixed through the flexible fixing pieces, and the size of the containing space and the size of the opening of the containing space can be changed. The filter screen detachably covers the opening of the containing space, and the arrangement position of the filter screen is lower than the notch of the pasting layer. And the drainage tube is communicated with the accommodating space of the outlet water container.

The application discloses a gallbladder stone suction and extraction device, which comprises a tubular body, an open front end of the body forms a stone storage space, a rear end of the body forms a connecting end, the connecting end is provided with a negative pressure channel communicated with the stone storage space, the body surrounds the stone storage channel to form an adjusting channel, and a sealing seat is in sealing sliding connection with the stone storage channel; an adjusting seat is located in the adjusting channel and slides along the length direction of the adjusting channel; an elastic film is annular, one end of the elastic film is sleeved with the adjusting channel and connected with the adjusting seat, the other end of the elastic film is connected with the sealing seat, and the elastic film is provided with a plurality of through holes; and a negative pressure source is connected with the connecting end, the negative pressure source provides negative pressure to the stone storage space through the negative pressure channel, the stones are adsorbed through the through holes and resist the elastic film, the negative pressure source cooperates with the elastic film to realize the fixation and transfer of the stones, the stones are temporarily stored through the stone storage channel, the continuous stone extraction is realized, and the stone extraction effect is greatly improved.

The invention relates to the technical field of stone removal in the gastroenterology department, in particular to a stone remover for the gastroenterology department, which comprises a holding rod and a probe, a connecting pipe is fixedly connected to the holding rod, a miniature air pump is fixedly mounted on one side of the holding rod, a connecting groove is formed in one side of the probe, a connecting ring is fixedly connected to the connecting pipe, and the connecting ring is fixedly connected to the probe. The calculus removing device has the advantages that calculus removing work can be continuously carried out in the body of a patient, calculus obtained after operation can be stored in the collecting bag in a centralized mode, the operation that a worker needs to repeatedly remove the calculus is avoided, and the calculus removing device is simple in structure, convenient to use and high in practicability. According to the calculus extractor, the time needed for treatment of a patient is shortened, the treatment efficiency is improved, the probe and the collecting bag can be separated conveniently after calculus extraction work is completed, a worker can conveniently extract calculus in the collecting bag, then the collecting bag and the probe are disinfected, and the worker can conveniently use the calculus extractor again next time.

The utility model relates to the technical field of calculus washing and extraction, in particular to a washing filter for calculus extraction, which comprises a water spraying assembly, a washing assembly, a storage assembly and a mixing assembly, a support frame is arranged on the water spraying assembly, a blocking cylinder is arranged in the middle of the top end of the support frame, a spray head is arranged on the side wall of the blocking cylinder, and the washing assembly is connected with the storage assembly. A second hydraulic cylinder on the mixing and stirring assembly drives a rotating rod at the bottom of a second hydraulic rod to move up and down, the height of a blocking arm is adjusted, and a motor is started in a matched mode, so that stones make full contact with water, it is guaranteed that dirt and impurities on the stones are more easily cleaned away, the cleaning effect is improved, manpower is saved, the stone cleaning time is shortened, and the working efficiency is improved. Meanwhile, by closing the first valve on the water inlet pipe and opening the second valve, water in the water tank can be recycled, water resources can be saved, and then the stone cleaning and extracting cost is reduced.

The utility model provides a kind of liquid electricity and net basket combined's gravel device, including handle fixed end, handle mobile end is moved along handle fixed end axial direction, handle fixed end is equipped with injection port, handle fixed end front end is provided with outer tube, outer tube is double-cavity pipe and is respectively net basket passage and liquid electricity passage;Net basket passage inside is provided with wire, wire one end is connected handle mobile end, other end is connected net basket body;Liquid electricity passage inside is equipped with liquid electricity lithotripsy catheter, liquid electricity lithotripsy catheter one end is connected with liquid electricity lithotripsy instrument, other end is connected liquid electricity lithotripsy electrode, liquid electricity lithotripsy electrode is located in liquid electricity passage, injection port is communicated with net basket passage, liquid electricity passage is located in the bottom of outer tube, handle fixed end rear end is provided with sealing device, liquid electricity passage rear end is connected with handle fixed end plugging, net basket body is coated with insulating layer.The utility model satisfies the liquid electricity lithotripsy and stone extraction function of calculus simultaneously, significantly reduce the frequency of instrument exchange, safe and effective, shorten operation time;Double-channel structure not only can avoid electrode discharge injury biliary tract, simultaneously, after net basket body set stone, stone is more fixed, energy loss is small, gravel efficiency is higher, and stone in net basket body, will not produce a large number of escape, improve stone extraction efficiency to a certain extent.

The invention relates to the technical field of gall-stone extraction, in particular to a gall-stone extraction device with grabbing and dosing matched and a using method thereof.The gall-stone extraction device comprises a protective tube and a dosing tube slidably mounted in the protective tube, a pushing ring is fixed to the end of the dosing tube, and the dosing tube is sleeved with a first spring abutting against the pushing ring; the grabbing mechanism is arranged on the protective tube and connected with the dosing tube, and a plurality of grabbing plates which are circumferentially distributed at equal intervals are connected to the grabbing mechanism; the piston cylinder is fixedly mounted on the protective tube, and a synchronous dosing mechanism is arranged in the piston cylinder; and the rotating ring is rotationally installed on the medicine feeding pipe and matched with the synchronous medicine feeding mechanism, and a rotating guide assembly connected with the rotating ring is arranged in the protection pipe. When the gall-stone is grabbed, medicine feeding treatment can be conducted synchronously, and when the grabbed gall-stone is taken out and released, medicine feeding treatment can be conducted synchronously; and the liquid medicine in the piston cylinder cannot be discharged.

The invention relates to a calculus removing and crushing device for a calculus operation, belongs to the technical field of calculus removing and crushing, and solves the problem that large-size calculus is difficult to capture and take out. The stone taking and crushing device comprises a stone catching net basket, an outer fixed pipe, an inner rotating rod, a rotating disc and a sliding rod, wherein the outer fixed pipe and the inner rotating rod rotate relatively; the sliding rod is provided with a spherical protrusion matched with the arc-shaped guide groove in the rotating disc and fixedly connected with the stone catching net basket. The rotating disc rotates synchronously with the inner rotating rod; a linear sliding groove for installing a sliding rod is formed in the end face of the outer fixed pipe, and when the inner rotating rod drives the rotating disc to rotate, the spherical protrusion slides along the arc-shaped guide groove and pushes the sliding rod to slide out of the linear sliding groove to achieve expansion and contraction of the stone catching net basket; and a hydraulic-electric lithotripsy channel is formed in the inner rotating rod, and is used for introducing a hydraulic-electric lithotripsy probe to realize hydraulic-electric lithotripsy of calculi. According to the invention, the capturing and electro-hydraulic lithotripsy of the ultra-large stone are realized, and the success rate of the operation is improved.

The invention discloses an elbow calculus removal mesh basket device, and relates to the field of calculus removal medical instruments, the elbow calculus removal mesh basket device comprises a handle, the handle is rotatably sleeved with a rotating piece, a pin pipe is inserted into the rotating piece, the pin pipe is connected with an elbow pipe, the elbow pipe has two structures, a flushing opening is formed in the handle, a control line is arranged in the flushing opening, and the control line is connected with the elbow pipe. The control line is connected with the net basket, the elbow pipe has a deflection swing function by changing the structure of the elbow pipe, so that the head end of the net basket can be bent and adjusted, the elbow pipe is installed on the rotating piece, the axial rotation function of the net basket is achieved, the head end of the net basket can be adjusted through rotation and deflection cooperation, and therefore the net basket can be adjusted. Therefore, the working range of the mesh basket can be enlarged, and calculi, foreign matters, polyps, tumors and the like can be more conveniently extracted when being not beside the mesh basket or in the axial direction.