20 results about "Stone extraction" 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 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.

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 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 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.

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 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 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 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 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 utility model relates to the field of medical instruments, and provides a calculus removal mesh basket with multiple scales, which comprises a mesh basket head, an insertion part and a handheld operation part which are connected in sequence, a movable device is arranged on the handheld operation part, and the movable device is used for controlling the opening and closing state of the mesh basket head. The insertion part is provided with a first scale for determining the insertion depth of the calculus removal net basket into a target position, and the handheld operation part is provided with a second scale for calculating the calculus removal size. The scales with different calculation functions are arranged on the insertion part and the handheld operation part, so that a doctor can conveniently and clearly know the insertion length of the calculus removal net basket during use based on the first scales on the insertion part, and the doctor can be helped to judge the initial calculus size based on the second scales on the handheld operation part; and the success rate of calculus removal of an operator each time is improved.

The utility model belongs to the technical field of medical instruments, and particularly relates to a calculus removing mesh basket which is characterized in that a triangular groove is matched with a limiting rod, so that the limiting rod can enable a sliding block to be in a one-way locking state in the calculus removing process of a doctor, a mesh basket head is ensured to be in a tightened state, and the doctor is prevented from continuously applying force to the upper side of a control handle; the operation difficulty of a doctor is reduced, the design of the finger ring is more convenient for the doctor to hold and operate, hand fatigue is reduced, the operation comfort is improved, the design of the deflector rod enables the operation to be simple when the limiting rod is popped out and retracted, and meanwhile, the rubber rings on the upper side and the lower side of the deflector rod increase friction force, so that the operation is more convenient. According to the calculus removing mesh basket, the shifting rod is prevented from sliding accidentally in the operation process, the stability of the whole device is improved, according to the design of the calculus removing mesh basket, through the ingenious mechanical structure and component layout, accurate control and locking of the mesh basket head are achieved, meanwhile, operation convenience and user experience are improved, and therefore the success rate of an operation and the satisfaction degree of a patient are improved.

The utility model relates to the technical field of medical instruments, in particular to a calculus taking device for the urology department, which comprises a sleeve, a connecting sleeve is fixedly connected to the bottom end of the sleeve, handles are fixedly mounted on two sides of the bottom end of the connecting sleeve, a connecting plate is fixedly mounted inside the sleeve, and the inside of the sleeve is divided into a collecting cavity and a working cavity through the connecting plate. And the collecting cavity is arranged at the upper part and is communicated with the opening at the upper end of the sleeve. According to the calculus taking device for the urology department, when the top end of the sleeve moves to the lithotripsy position, firstly, gas in a cleaning head is exhausted through a gas pipe, a cleaning ball is shrunk, a micro electric push rod is started to drive the cleaning ball to move forwards to the position behind lithotripsy, then the cleaning ball is expanded through inflation, and the micro electric push rod drives the cleaning ball to move backwards; therefore, the broken stones can be pushed into the collecting cavity, and the collection of the broken stones is completed.

The utility model provides a kind of net basket stone extraction device with biliary tract flushing function, including catheter, fixed ring, guide wire, flush pipe, pipeline guide silk;Wherein, catheter is equipped with first lead-through cavity, and multiple second lead-through cavities;First through-hole is set in fixed ring middle part;Guide wire is worn in second lead-through cavity, and front end forms net basket;Flush pipe is installed in first lead-through cavity, with infusion cavity;Pipeline guide silk is worn in the infusion cavity of flush pipe. When using, the front end of catheter is sent to calculus place through endoscope;Physiological saline is injected in flush pipe, and calculus periphery adherend is washed;Then flush pipe is extracted, then guide wire is pushed to make net basket open and cover calculus, and is withdrawn with endoscope;After calculus is extracted, flush pipe is installed by pipeline guide silk, and is entered again to flush biliary tract and remove residue. The device reduces operation time and complexity, avoids multiple instruments cross into human body, and reduces biliary tract injury and bleeding risk.

The application discloses a clinical calculus removing device for hepatobiliary surgery and relates to the technical field of medical apparatuses, which is characterized in that the technical scheme comprises a core rod, the end of the core rod is provided with a mesh basket wire, the outside of the core rod is provided with a sheath tube, the sheath tube is provided with a sleeve, the sleeve is provided with a calculus removing protection mechanism, a hierarchical linkage mechanism is arranged between the calculus removing protection mechanism and the sheath tube, and the end of the sleeve away from the calculus removing protection mechanism is provided with an operation control mechanism. The hierarchical linkage mechanism is arranged to link the mesh basket wire and the calculus removing protection mechanism, so that the continuous operation of accurate calculus removing first and automatic wrapping later is realized, the calculus is prevented from falling off or remaining in the process of being removed, the operation success rate and safety are remarkably improved, the calculus removing protection mechanism itself can be used as an independent calculus removing forceps, the calculus removing forceps can be separately controlled to grasp the scattered calculus around the mesh basket which is difficult to handle, and the operation difficulty and the patient risk are effectively reduced.