49 results about "Dormia basket" patented technology

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 relates to the technical field of basket catheter, in particular to a basket catheter system and a basket catheter calibration method. The basket catheter system comprises a basket catheter, an operating handle, a tube body and a basket electrode assembly, the basket electrode assembly comprises a spline, a proximal end fixing seat and a distal end fixing seat, and the basket catheter system further comprises a proximal end position sensor and a distal end position sensor arranged on the proximal end fixing seat and the distal end fixing seat respectively; the basket catheter system further comprises a processing device, the proximal end position sensor and the distal end position sensor are connected with the basket catheter, and the processing device is used for obtaining a contact force of the basket electrode assembly and target tissue according to a proximal-distal end spacing change amount, a corresponding relationship between a known axial force value of the basket electrode assembly and the proximal-distal end spacing change amount and a contact angle of the basket electrode assembly and the target tissue. The application mainly solves the technical problem of how to detect the contact force of the basket catheter and the target tissue.

This application provides a basket catheter, which includes flexible circuit strips, an elastic support, basket electrodes, and a core rod. The flexible circuit strips are respectively arranged on the inner and outer surfaces of the elastic support, and multiple basket electrodes are disposed on the flexible circuit strips. The basket electrodes can be switched between a contracted state and an expanded state by operating the core rod. The basket electrodes on the inner surface of the elastic support are configured not to contact tissue. Accurate localization of key conduction areas through high-density sampling within the cardiac chambers allows for a clearer elucidation of the arrhythmia matrix, thereby providing better mapping and / or ablation results.

The present invention relates to the technical field of medical instruments. Disclosed are a ball head locking mechanism of a basket catheter and a basket catheter. The ball head locking mechanism comprises a ball head screw, a ball head thread insert and a restraining ring, wherein the ball head screw is threadedly connected to the inner side of the ball head thread insert, and the outer wall of the ball head thread insert is of a slope structure. In the present invention, the ball head screw and the ball head thread insert which are in threaded fit are screwed together, and end portions of nickel-titanium sheets of a basket structure are effectively pressed against the slope structure by means of the restraining ring, thereby achieving effective locking and avoiding the use of glue bonding to reduce the risk of detachment. In addition, the ball head thread insert can further be in the form of a combination of an expansion ring and a compression thread insert. When the ball head screw and the compression thread insert are rotated relative to each other and tightened, the ball screw and the compression thread insert can also jointly compress the expansion ring, so that the expansion ring expands outwards to press against the nickel-titanium sheets, thereby further assisting in locking the nickel-titanium sheets, and ensuring the locking effect.

The invention belongs to the field of medical instruments, and provides a gastroendoscopic gastric calculus crushing device which comprises a control assembly, the control assembly comprises a shell and a handle, and the handle is fixedly mounted on the right side surface of the shell; the adjusting assembly is mounted on the surface of the bottom side of the shell; the stretching-in mechanism is installed on the surface of the bottom side of the shell, and the stretching-in mechanism is used for stretching into the stomach of a patient; the crushing assembly is mounted in the bottom end of the stretching mechanism, and the crushing assembly is used for crushing the gastric calculi; under the action of a vibration motor, the vibration motor acts on a tool apron to move, the tool apron drives a smashing cutter to conduct smashing, a steel wire rope drives a net basket to move, the net basket conveniently drives broken stones to move, continuous material supplementing is facilitated, the stone smashing efficiency is improved, the stone smashing effect is met, and after the attached broken stones are squeezed away through a cleaning plate, it is guaranteed that the surface of the smashing cutter is clean; the crushing cutter is convenient to operate and use.

The invention relates to the technical field of medical instruments, in particular to a variable-diameter spiral choledochoscope calculus removal mesh basket which comprises a base body and a handle arranged at the rear end of the base body, a telescopic pin pipe is arranged at the front end of the base body, a regulation and control guide wire is connected to the handle and penetrates through the base body and the telescopic pin pipe, and the telescopic pin pipe is connected to the handle. The near end of the spiral mesh basket body is fixedly connected to the end of the regulation and control guide wire, a front end cap is arranged at the far end of the spiral mesh basket body, and when the calculus removing mesh basket is used, the regulation and control guide wire is driven by the push-pull assembly to slide back and forth relative to the telescopic pin pipe, so that the spiral mesh basket body can contract in the telescopic pin pipe, that is, the spiral mesh basket body becomes small in the radial direction; or the telescopic pin pipe is pushed out to expand outwards, namely, the telescopic pin pipe is enlarged in the radial direction, stepless continuous adjustment of the diameter of the mesh basket is achieved, meanwhile, the adjusting and controlling guide wire and the spiral mesh basket body fixed to the adjusting and controlling guide wire are driven by the rotating assembly to rotate synchronously, the spiral mesh basket body can spirally tighten or loosen around the axis of the spiral mesh basket body, and therefore the wrapping and locking effects on calculi are enhanced.

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 provides a catheter device for subsection bronchial lavage, which comprises an inner catheter for lavage fluid injection and suction and a mesh basket mechanism for plugging and positioning, and the mesh basket mechanism is arranged on the outer side of the front end of the inner catheter; the mesh basket mechanism comprises a mesh basket body located on the inner side and a film sleeve located on the outer side, and the mesh basket body and the film sleeve are arranged in a stacked mode in the radial direction of the inner catheter. The mesh basket body is formed by weaving a plurality of filaments, and the filaments at least comprise shape memory alloy wires. The utility model can realize the positioning and plugging effect at the specified position in the subsection bronchial tube, the mesh basket mechanism automatically opens to achieve the plugging function, and the utility model has the advantages of convenient operation and strong practicability.

The utility model discloses a coaxial mesh basket negative pressure catheter, which relates to the technical field of stone removal medical instruments and structurally comprises a first tube and a second tube, and the first tube slides relative to the second tube. A net basket is arranged at the tail end of the first pipe; a stone crushing part sliding relative to the first pipe is arranged in the first pipe, an energy release part is arranged at the tail end of the stone crushing part, and the center of the mesh basket and the center of the energy release part are coaxial with the first pipe; the head end of the first pipe is bifurcated and is provided with at least two first interfaces or a connecting piece, and the connecting piece at least comprises three second interfaces; wherein one of the first interface or the second interface is connected with a negative pressure mechanism. According to the coaxial net basket negative pressure catheter, the stone is fixed in the net basket through the binding effect of the net basket, the position between the energy release part and the stone basically does not move relatively during stone crushing, the stone crushing efficiency is higher, and the operation time is shortened; other tissues are not damaged, and higher safety is realized; the lens is protected and is prevented from being damaged by gravel energy; and non-direct-vision touch typing is realized in combination with a contrast agent.

Disclosed is a foreign body removal device, relating to the field of medical instruments. The foreign body removal device comprises a foreign body removal part (100), an adjustment part (200), and an operation part (500). One end of the foreign body removal part (100) is weaved and gathered to form a gathered part (120), the operation part (500) is fixedly connected to the tail end of the gathered part (120), the adjustment part (200) is annularly arranged on the outer side of the gathered part (120), and one end of the adjustment part (200) is fixedly connected to the operation part (500). The overall diameter of the foreign body removal device is extremely small, which is reduced by 50% or more compared with the overall diameter of a traditional stone removal basket product, and the foreign body removal device can be directly fed into a smaller cavity. The positions such as the biliary tract and the intestine can be easily reached, and meanwhile, the effective rotation of the foreign body removal part (100) can be ensured under various bends, thereby greatly expanding the application range of stone removal and foreign body treatment.

The application provides a thrombus removing support and system, and relates to the technical field of medical devices.The thrombus removing support comprises a support and a basket supported on a distal end section of an elongated operating rod, the support and the basket both have an expanded state relative to an initial state, the support comprises a frame body, the frame body has a shape expanded into a cage structure, and the frame body is used for cutting or scraping a thrombus; the basket comprises a rib and an aperture, and the basket is used for intercepting or capturing a free thrombus; a radial supporting force of the support is greater than a radial supporting force of the basket, or a radial supporting capacity of the support is greater than a radial supporting capacity of the basket; the thrombus removing support in the scheme combines the functions of cutting and capturing, and can process different types and states of thrombus in one operation.

The invention discloses an automatic fastening mechanism of a mesh basket catheter and the mesh basket catheter, and relates to the technical field of medical instruments.The automatic fastening mechanism of the mesh basket catheter comprises an inner and outer sleeve set and an outer thread fastening sleeve, and the inner and outer sleeve set comprises a pressing pipe and an inner thread fastening sleeve; the pressing pipe and the internal thread fastening sleeve are used for jointly clamping the end part of the nickel-titanium sheet; one end of the external thread fastening sleeve is provided with an anti-falling piece used for abutting against the inner wall of the pressing pipe. After the end of the nickel-titanium sheet is clamped and fixed between the pressing pipe and the internal thread fastening sleeve, the external thread fastening sleeve is connected into the internal thread fastening sleeve in a threaded mode, and in the process, the external thread fastening sleeve drives the anti-disengaging piece to move and abut against the end face of the internal thread fastening sleeve; and due to the extrusion effect, only the anti-falling piece is propped open and abuts against the inner wall of the pressing pipe, so that the pressing pipe is fastened relative to the internal thread fastening sleeve, it is guaranteed that the end of the nickel-titanium sheet is kept fixed, and the falling risk caused by glue bonding is avoided.

The utility model provides a multifunctional calculus extraction net basket, including net basket cap, outer sheath, net basket, connecting pipe and handle, net basket cap sets up at the head end outside of outer sheath, net basket and connecting pipe are placed in the inside of outer sheath, the head end of net basket is connected with the tail end of net basket cap, and the tail end is connected with the head end of connecting pipe, connecting pipe is inserted to the inside of outer sheath through the tail end of outer sheath, and the tail end of connecting pipe is connected with handle, and handle is located at the tail end outside of outer sheath, the utility model has multiple functions, can be directly placed into to common bile duct and carries out calculus extraction, also can be placed into to common bile duct, intrahepatic bile duct and gallbladder duct under the guidance of guide wire and carries out positioning calculus extraction, when the huge calculus is taken out, can be placed into the guide wire and carries out lithotripsy through the guide wire channel, and then the broken stone is taken out.

The utility model provides a kind of wire guide calculus extraction net basket, including net basket, guide wire, net basket cap, outer sheath and handle, tail end of guide wire is connected with the head end of net basket cap, net basket cap is placed in the head end outside of outer sheath, net basket is inserted to the inside of outer sheath through the tail end of outer sheath, one end of net basket is connected with the tail end of net basket cap, other end is connected with handle;Handle is located in the tail end outside of outer sheath.The utility model can be inserted through papilla incision knife, SpyGlass or insight pancreatic duct imaging system channel etc.Various instrument channels, realize the calculus extraction treatment of multiple scenes;During the release of net basket, soft guide wire head end crosses stone more easily into the distal bile duct, more conducive to the release of net basket, and net basket can be taken out of stone by pulling back.

The invention discloses an adjustable bent mesh basket ablation catheter and a preparation method thereof. The catheter comprises a mesh basket assembly, a sleeve, a front push-pull ring, a side push-pull button, a handle, an irrigation element, a far-end tube, an elbow adjusting tube, a near-end tube, a head end fixing piece, a middle electrode ring, a magnetoelectric positioning sensor, a pull ring, a pull wire, a magnetoelectric positioning sensor wire, a wire, an end electrode ring and an insulating sleeve. The ablation catheter has the advantages that the front end of the ablation catheter is of the mesh basket structure, the mesh basket structure can be flexibly unfolded or contracted, two different diameters can be switched at any time, electrodes on the ablation catheter are well attached to tissue, stability is high, the ablation catheter can be suitable for different pulmonary vein opening anatomical structures, the contact area of the mesh basket assembly and the tissue is increased after the ablation catheter is unfolded, and the ablation effect is good. Therefore, the time required by ablation is shortened, the irrigation structure in the catheter is beneficial to reducing tissue damage and reducing thrombus occurrence, the catheter also has mapping, navigation and treatment functions, the time of instrument replacement is shortened, and the treatment effect is improved.

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.

The utility model belongs to the field of endoscope calculus removing net baskets, and particularly relates to an endoscope calculus removing net basket convenient to use, which comprises a handle tube, a holding mechanism is arranged on the outer side of the handle tube, a knob is mounted on the outer side of the right end of the handle tube through a bearing, and a guide ring is fixedly connected to the left portion of the inner wall of the handle tube. A guide wire is slidably connected to the interior of the guide ring, a mesh basket is fixedly connected to the end, away from the handle pipe, of the guide wire, and two symmetrically-distributed guide strips are fixedly connected to the outer side of the guide ring. By additionally arranging the screw rod, the gear, the driving frame and other structures in the handle pipe, the screw rod can be driven to rotate through meshing fit between the gear and the inner gear ring in the using process, and the driving frame can be driven to move through threaded fit between the screw rod and the threaded sleeve in the rotating process; when the driving frame moves, the guide wire can be driven to be inserted, and therefore the insertion speed can be effectively controlled.

This invention discloses an integrated intestinal obstruction decompression and suction scraping device, relating to the field of medical device technology. It includes a handheld main unit, a disposable suction tube, and a transparent collection bag. The tail end of the disposable suction tube is detachably connected to the front end of the handheld main unit, and the transparent collection bag is detachably installed on the side of the handheld main unit. The handheld main unit houses a drive motor, and the front end of the drive motor has a transmission shaft. This invention utilizes the dual rotational crushing and scraping functions of the scraping head and the basket-shaped scraper. When the head end of the inner spiral outer tube encounters fecal impaction, it can directly initiate rotational scraping within the intestinal lumen, breaking up the fecal impaction and suctioning it out under negative pressure. This achieves unblocking without removal from the body, avoiding mechanical damage to the intestinal wall caused by repeated insertion and removal. By integrating the crushing, suction, and scraping functions into a single device, the smoothness of the procedure is improved.

The utility model discloses an umbrella-shaped common bile duct calculus removal net basket, which relates to the technical field of calculus removal net baskets, and comprises a catheter, a connecting rod, a net basket, a net bag and a joint, one end of the connecting rod is positioned in the catheter, and the outer side of the connecting rod is fixedly connected with a sliding limiting component. The connecting rod is conveniently pushed by arranging the sliding limiting assembly, so that the mesh basket and the net bag matched connector are opened to form an umbrella shape, small stones can pass through a gap formed between the umbrella-shaped edge and the net and enter the net to be taken by the mesh basket, and the problems that due to the fact that metal wires of an existing stone taking mesh basket are prone to transverse displacement, the shapes are not fixed, and the stones are prone to slipping off are solved. Meanwhile, the problems that when the calculus removing balloon is full, the root of a nipple is prone to tearing and bleeding, a patient with common bile duct dilatation is difficult to remove calculus, small calculus is prone to being sucked into the bile duct when the balloon is cleaned, calculus removing fails, inconvenience is caused in the using process, and the using effect of the calculus removing net basket is reduced are solved.

The invention relates to the technical field of medical instruments, in particular to a biliary tract calculus removal net basket device and a working method thereof. The shell comprises a supporting part and a hard outer sleeve; the suction assembly comprises a first power part and a soft inner sleeve; the extracting assembly comprises a second power part and a net basket; the end, deviating from the first power part, of the inner sleeve is diverged to form a horn mouth which has a contraction state and an adsorption state. When the first power part drives the inner sleeve to move relative to the outer sleeve, the horn mouth completes switching between a contraction state and an adsorption state; when the second power part applies force to the mesh basket and retracts the mesh basket, a negative pressure effect is formed from the interior of the tube body of the inner sleeve to the interior of the accommodating cavity, so that the mesh basket realizes a sleeving and tightening effect on the calculus while the horn mouth realizes a local adsorption effect on the calculus; the calculus taking-out device can be used for quickly and accurately taking out calculi with different sizes and states, and is high in applicability.

The present invention relates to the field of electrophysiological catheters, and in particular, to a basket catheter and a basket assembly of the basket catheter. Provided are a basket assembly and a basket catheter. The basket assembly comprises a proximal connecting base, a distal connecting base, and splines. The proximal connecting base is configured to be fixedly connected to proximal ends of the splines, and the distal connecting base is configured to be fixedly connected to distal ends of the splines. During processes in which the distal connecting base moves close to and away from the proximal connecting base, the splines have a closed state and an open state. The spline comprises: a support frame having elasticity; and a flexible connecting member attached to the support frame. The flexible connecting member comprises an extending portion and a reverse folding portion. The extending portion is exposed beyond a distal end of the support frame, the reverse folding portion is connected to the extending portion and folded toward a proximal end of the basket assembly, and the reverse folding portion is fixed to the distal connecting base. The present invention primarily solves the technical problem that the basket assembly is not easily attached well to the target biological tissue.

The utility model discloses a double-balloon pushing device for calculus incarceration under ERCP, which comprises a rubber inner core, and a zebra guide wire is arranged on the rubber inner core in a penetrating manner; the first balloon is fixedly connected to the front end of the rubber inner core in a sleeving manner; a first channel is further formed in the rubber inner core, a first connecting port is formed in the side wall of the front end of the first channel, and the first connecting port is communicated with the interior of the first balloon; a front-end inner core is integrally arranged at the front end of the rubber inner core; the inner tube is arranged on the rubber inner core in a sliding and sleeving manner; the second balloon is arranged at the front end of the inner tube in a sleeving manner; the inner tube is further provided with a second channel, the side wall of the front end of the second channel is provided with a second connecting port, and the second connecting port is communicated with the interior of the second balloon. An existing calculus removing balloon is improved, a front end inner core with certain hardness is additionally arranged, and a double-balloon front-back clamping mode is adopted, so that incarcerated calculus of a patient can be pushed into the wide position of the upper section of a bile duct again, the calculus can be conveniently fished out by a net basket again, surgical operation is not needed, and pain and economic pressure of the patient are relieved.

The utility model discloses a foldable child bathtub which comprises two bases, the interiors of the bases are of hollow structures, two supporting rods are installed in the bases through lifting mechanisms, the lifting mechanisms are used for driving the supporting rods to ascend and descend, the tops of the supporting rods are hinged to a fixing frame, and the bottoms of the supporting rods are hinged to the fixing frame. The bottom of the fixing frame is connected with a basin bottom through a foldable basin body, a back cushion is placed on the basin bottom, the back cushion is connected with a fixing block through a rope belt, a fixing mechanism used for fixing the fixing block is installed in the fixing frame, and a placing net basket is arranged on the side edge of the fixing frame. The height of the fixing frame can be adjusted, the depth of the basin body can be adjusted conveniently, and children of different age groups can use the basin conveniently; and the fixing block can be fixed through the fixing mechanism, so that the back cushion is convenient to mount and dismount.

This invention discloses a gallbladder stone removal device, comprising a mesh-like stent made of one or more interwoven braided filaments and a stent delivery system. The mesh-like stent includes a stent body and distal and proximal stent ends located at its two ends. When the mesh-like stent is in the released state, the diameter of the distal stent end is greater than or equal to the diameter of the stent body, and the diameter of the proximal stent end is greater than or equal to the diameter of the stent body. After the distal stent end of this invention is released, the stent diameter is greater than the inner diameter of the cystic duct and the common bile duct, forming a funnel-shaped structure that completely conforms to the bile duct wall. Combined with an external negative pressure suction device, gallstones in the gallbladder can be drawn into this funnel-shaped structure in one go and finally removed from the biliary system, eliminating the need for multiple insertions and removals of the gallbladder using a stone retrieval basket, thus avoiding damage to the gallbladder and bile ducts. The stent made of biodegradable filaments completely degrades within three months in the biliary system, eliminating the need for secondary surgery and avoiding complications.

The utility model discloses a gallipot cleaning basket which comprises an outer basket (1), an inner basket (2) and a cover net (3). The inner basket (2) is internally provided with a plurality of movable separation nets (4), the separation nets (4) are arranged in the inner basket (2) in an inclined state, each separation net (4) comprises a main net body (5), the side part of each main net body (5) is provided with a side rod (6), the upper end of each side rod (6) is provided with a hook part (7) erected on the side edge of the inner basket (2), and the lower end of each side rod (6) is provided with an extending end (8) embedded in a bottom net hole of the inner basket (2). An interlayer space (9) for placing a medicine tank is formed between every two adjacent separation nets (4). The gallipot is arranged in a separated mode through the movable mesh basket structure, it is ensured that cleaning liquid can make uniform contact with all the surfaces of the gallipot, the cleaning effect of the gallipot is improved, the gallipot is kept in an inverted state, accumulated water residues of the gallipot are greatly reduced, and the drying effect is improved.

The utility model provides a surgical instrument disinfection box, and relates to the technical field of disinfection boxes, the surgical instrument disinfection box comprises a disinfection box body, a mesh basket is placed in the disinfection box body, side grooves are formed in the two sides of the mesh basket, side openings are formed in the inner walls of the two side grooves, an auxiliary mechanism is arranged on the disinfection box body, and the auxiliary mechanism comprises an adjusting part. Second connecting plates are arranged on the two sides of the adjusting piece correspondingly, and clamping blocks are fixedly connected to the sides, close to each other, of the two second connecting plates correspondingly. Through the arrangement of the auxiliary mechanism, after the auxiliary mechanism is taken down from the disinfection box body, the adjusting piece can drive the two clamping blocks to move through the second connecting plate, after the second connecting plate is inserted into the side groove, the clamping blocks can be connected with the side opening in an inserted mode, and at the moment, the auxiliary mechanism can be moved to take and place a net basket; the hands of an operator are not prone to making contact with the disinfectant in the taking and placing process, and then the situation that the hands are corroded by the disinfectant is reduced.

This utility model discloses a basket control bracket, a basket assembly, and an endoscope kit, relating to the field of medical device technology. The basket control bracket has a lever and a mounting portion adapted to be mounted on the operating handle of an endoscope. The basket control bracket is configured such that, when mounted on the proximal end of the operating handle of the endoscope via the mounting portion, the lever is offset relative to the control area in the width direction of the endoscope. The lever controls the tightening or unfolding of the stone retrieval basket. The mounting portion allows the basket control bracket to be mounted on the operating handle while the lever is offset relative to the control area in the width direction of the endoscope. This offset of the lever from the control area avoids interference between the lever and the control area, allowing the operation of the lever and the endoscope's control components to be relatively independent. This configuration facilitates the adaptation of the basket control bracket to endoscopes with control areas, improving the applicability of the basket control bracket.

The utility model provides a biliary tract calculus removing system with an expanding and calculus removing balloon and a mesh basket, which comprises a sheathing canal, an expanding calculus removing component arranged at the front part of a sheathing canal body and a handle component arranged at the rear part of the sheathing canal body, and the sheathing canal body is connected with the handle component through an insert injection molding part. The dilation calculus removal assembly comprises a calculus removal mesh basket, a calculus removal balloon and a dilation balloon which are sequentially arranged in the front-back direction of the sheath tube body, the calculus removal mesh basket is located at the foremost end of the sheath tube body, and the handle assembly fills the dilation balloon through the sheath tube body and enables the calculus removal mesh basket and the calculus removal balloon to remove calculus. By integrating the calculus removing net basket, the calculus removing balloon and the balloon dilatation catheter, after the papilla sphincter is cut open, the papilla sphincter is expanded, and large and small calculi in the biliary tract are removed, so that the operation time of instrument replacement is shortened, the operation difficulty is reduced, and the risk of infection of a patient is reduced.

Disclosed in the present application are a basket skeleton, a basket balloon, a basket electrode assembly, and a basket catheter, relating to the technical field of medical devices. The basket catheter comprises a basket electrode assembly, the basket electrode assembly comprising a basket skeleton, electrode bodies and a basket balloon. The basket skeleton comprises a connection ring and bar-shaped elastic bodies, the bar-shaped elastic bodies being spaced apart in the circumferential direction of the connection ring, the distal end of each bar-shaped elastic body being bent to form a planar section, the free end of each planar section being bent to form a recess section, the recess sections being used for enclosing a recess region, and the connection ring being located inside the recess region. The basket skeleton does not cause harm to the human body and has higher safety. The basket balloon comprises a balloon having an annular structure, the balloon being divided into a first fixed section, a first deformable section, a second deformable section, a third deformable section and a second fixed section, which are different in thickness. The basket balloon has good performance in support and attachment and thus facilitates better contact between the electrode bodies and sites to be subjected to ablation via energy discharge, thereby achieving efficient discharge energy conversion.