41 results about "Stone extraction" patented technology

The invention relates to a multifunctional biliary tract stone extraction instrument which properly increases the diameter of a tube sheath to 3-5mm on the basis of the traditional biliary tract stone extraction basket. Meanwhile, the past single-cavity tube sheath is changed into a double-cavity tube sheath. An inner cavity can be used for biliary tract rinsing and radiography. An outer cavity is sealed, and the tail end is provided with a saccule-shaped device; the saccule-shaped device is stopped near the outlet of the inner cavity. An amount of water can be injected through an injection port at the position of a handgrip so as to control the size of the saccule. In addition, a scale mark is designed at a distance from the head end to the tail end of the basket tube sheath. The invention can complete the necessary operations of stone extraction, rinsing, radiography, expansion and the like in the biliary tract operation only by one instrument, can be suitable for both coeliotomy and laparoscopic surgery and is easy to master and popularize. The invention changes the current situation that laparoscope biliary tract probe must depend on a laparoscope, thereby being beneficial to the popularization of the biliary tract operations under the laparoscope in the hospitals at all levels.

A general-purpose stone extractor is provided for removing gallstones, calculi or foreign bodies from the biliary tree, urinary tract, blood vessels and the like. The stone extractor is configured to enable catcher wires to be extracted and retracted from an outer sheath near to a stone by operating a push handle member, an elastic spring being installed between a proximal end of the outer sheath and the push handle member.

The invention discloses a negative-pressure suction biliary tract stone extraction assistance device. The device comprises a handle and an auxiliary pipe, wherein the upper end of an inner cavity of the handle is provided with a first reserved groove, and an inner cavity of the first reserved groove sleeves the auxiliary pipe; an inner cavity of the auxiliary pipe is provided with an adjusting steel wire and a tube, and the right side of the auxiliary pipe is fixedly connected with a clamping plate; the right side of the clamping plate is fixedly connected with a clamping plate, and the innerside of the clamping plate is provided with an airbag; one side of the right side of the auxiliary pipe is provided with an illuminating lamp, and the other side of the right side of the auxiliary pipe is provided with a camera; the middle end of the left side of the inner cavity of the first reserved groove is fixedly connected with an electric retractable rod, and the right side of the electricretractable rod is fixedly connected with the left side of the adjusting steel wire; meanwhile, the right side of the adjusting steel wire is also connected with the clamping plate, and the lower endof the inner cavity of the handle is provided with a second reserved groove. The airbag is arranged on the inner side of the clamping plate, and the effect of efficiently extracting stones can be achieved through the effects of the tube, a draught fan, the electric retractable rod and the adjusting steel wire.

The invention discloses a three-mirror combined minimally invasive gallbladder-preserving stone removal operation, which relates to medical equipment and is used to solve the problem that the existing stone removal mesh basket will touch the inner wall of the gallbladder, and the operation process is prone to pain, trauma, bleeding, and cannot collect gallbladder stones. , flushing, imaging and expansion in one. It includes a stone extraction basket, a choledochoscope, a laparoscope, and a duodenoscope. The stone extraction basket includes a catheter, a hollow guide head positioned at the left end of the catheter, and a wire basket positioned on the guide head. The wire basket includes at least 2 first net baskets, at least 2 second net baskets, the conduit includes outer tubes, sliding tubes, inner tubes and sliding couplings arranged from outside to inside, the sliding couplings include first terminals, second The terminal is used to connect the coupling shaft of the first terminal and the second terminal. The retractable mesh basket design prevents the stone extraction mesh basket from touching the inner wall of the gallbladder. There is no pain, trauma, or bleeding during the operation, and it can integrate gallbladder stone extraction, washing, imaging, and expansion.

The invention relates to a negative-pressure suction adjustment device for trans-sheath stone extraction with an endoscope. The negative-pressure suction adjustment device for trans-sheath stone extraction with the endoscope comprises a shell, wherein an endoscope entrance, a sheath canal installation opening and a negative pressure introducing opening are formed in the shell, and a negative pressure adjustment mechanism which is communicated with a cavity of the shell is also arranged on the shell. The negative-pressure suction adjustment device for trans-sheath stone extraction with the endoscope has the advantages that an operator can directly and accurately set and control negative pressure suction force to be at a reasonable value, the situations that renal hemorrhage is aggravated due to the fact that the negative pressure is too high and drainage is not smooth, the renal low-pressure state cannot be maintained and broken calculuses can not be sucked out due to the fact that the negative pressure is too low can be avoided, the negative-pressure drainage condition of a sheath canal can be observed directly, and the situation that a drainage channel in the sheath canal is blocked due to broken calculuses and blood clots can be found and handled in time; a central negative pressure suction source commonly used in an operating room can be directly used, and no special negative pressure control and monitoring device is needed; the negative-pressure suction adjustment device is widely applied to click peeling sheaths with various calibers, nephric duct passing sheaths with various calibers and various hard and soft endoscopes, and no purpose-made sheath or endoscope is needed; the device is small, exquisite, simple in structure, convenient to use and low in cost.

The invention relates to a bile duct stone extractor, which comprises an outer tube (1), an air pump tube (3) and a balloon tube (4). The air pump tube (3) is sleeved inside the outer tube (1), and the balloon tube (4) is sleeved inside the air pump tube (3). A fill inlet (2) is communicated to the back end of the outer tube (1). An inflating unit is connected to the back of the balloon tube (4),and a balloon (5) is connected to the front end of the balloon tube (4). An extracting pump is connected to the back end of the air pump tube (3), and a sucker (8) is connected to the front end of the air pump tube (3). A dilating support (9) is connected to the outside of the sucker (8). By the aid of the bile duct stone extractor, stone extraction efficiency in gallstone operation is high, and stone caked on the wall of a bile duct can be extracted easily. The bile duct stone extractor cause low harm to patients, while contrast agent, relaxant, therapy drug and the like can be injected in any time according to needs of operations.

The invention discloses an improved reclining lithotomy position percutaneous nephrolithotomy, which relates to medical instruments. The existing percutaneous nephroscopic surgery needs to change the surgical position, which leads to prolonged operation time, increased anesthesia risk, and labor intensity of medical staff. increase and decrease patient comfort. It includes the operating table, a set of percutaneous puncture and dilation equipment, ureteroscope, percutaneous nephroscope, cold light source, camera system, bedside B-ultrasound machine, intracavitary stone removal equipment, pressure-regulating water pump, and holmium laser.

The invention provides a multi-functional stone extractor which comprises an operation handle, a guide pipe and a stone extractor and is characterized in that the multi-functional stone extractor also comprises a plasma stone breaker, a monitoring device and an illuminating device, the plasma stone breaker is connected with the stone extractor in the guide pipe, the monitoring device consists of a camera, a wire, a switch and a socket, and the illuminating device consists of a light source, a wire, a switch and a socket; the guide pipe consists of an outer resin pipe and an inner resin pipe; the switches and the sockets are used for controlling the work of the light source and the camera, and the camera and the light source are connected with the sockets and the switches through the wires penetrating through the outer resin pipe; a moving groove is arranged on a handle rod of the operation handle, and a moving control ring arranged on the handle rod can move forward and back along the moving groove; and the stone extractor consists of a slider, a fixed base and a net connected between the slider and the fixed base, and the net consists of a plurality of thin steel wire ropes uniformly arranged around the plasma stone breaker. The invention overcomes the defects of the traditional stone extraction operation and has the characteristics of flexible movement, simpleness for control, high safety and reliability, good operation effect and the like.

The invention is entitled "Retraction Force Sensing Basket". The present invention provides a stone retrieval device comprising a sheath and a stone retrieval basket comprising a distal region having a plurality of basket wires and a proximal region having one or more core wires . The stone retrieval basket is received within the sheath and is removable from the distal opening of the sheath to open the plurality of basket wires into a basket shape. The stone retrieval device further includes: a locking mechanism that locks the position of the stone retrieval basket relative to the position of the sheath; and a basket force controller that includes a first control stage and Second control level. The first control stage includes a sensor for measuring the force on the stone retrieval basket when the locking mechanism is in the unlocked position, and the second control stage includes a sensor for measuring The calculus is removed from the basket with a force sensor on it.

The invention discloses two CIT multi-endoscope combined stone extraction techniques with gallbladder preserved. According to one technique, stone extraction with gallbladder preserved is conducted by means of a peritoneoscope and a choledochoscope assisted by the peritoneoscope, a patient is in the supine position, the bottom of the gallbladder is pulled out of the abdomen with peritoneoscope gripping tongs, an incision which is 1.0-1.5 cm in size is cut with an electrocoagulation hook on the bottom of the gallbladder, a rubber hose is inserted in and gall is extracted with an injector, the choledochoscope is inserted in, stone is taken out, the choledochoscope is retracted, and then the incision on the bottom of the gallbladder is sutured. According to the other technique, stone extraction with gallbladder preserved is conducted in a total laparoscopic mode, a patient is in the dorsal elevated position, an incision which is 1.0-1.5 cm in size is cut with an electrocoagulation hook on the bottom of the gallbladder, electrocoagulation hemostasis is conducted, a rubber hose is inserted in through a Trocar hole 10 mm away from the body projection position on the bottom of the gallbladder, gall is extracted with an injector, a choledochoscope is inserted in, stone is taken out, the choledochoscope is retracted, and then the incision on the bottom of the gallbladder and the gallbladder are sutured. The two CIT multi-endoscope combined stone extraction techniques with gallbladder preserved have the advantages that the gallbladder can be found quite easily, the incision is small, and the beautifying effect is good; the first technique is easy to operate when used for abdominal external stone or polyp extraction, and the second technique is suitable for all situations with gallbladder preserved.

The invention discloses an appendix primary-secondary endoscope. The appendix primary-secondary endoscope integrates the functions of examination and treatment, and comprises a primary endoscope and a secondary endoscope, wherein the primary endoscope is a colonoscope used clinically; the secondary endoscope is a flexible endoscope of which the outer diameter is 9-10F and the length is 140-180 centimeters; a primary endoscope instrument pipeline is formed on the primary endoscope; the secondary endoscope is arranged in the primary endoscope instrument pipeline, and can advance and retreat freely in the primary endoscope instrument pipeline; during examination and treatment, the secondary endoscope passes through the primary endoscope instrument pipeline on the primary endoscope after the primary endoscope reaches cecum, and enters an appendix cavity for examination and treatment. Furthermore, the secondary endoscope consists of a secondary endoscope light source, a secondary endoscope electronic camera and a secondary endoscope instrument pipeline, wherein the diameter of the secondary endoscope instrument pipeline is 1.2 millimeters; the secondary endoscope can be used for injecting water for flushing the appendix cavity through a guide wire, performing biopsy on appendical lesions through secondary endoscope biopsy forceps, and extracting appendiceal fecalith through a secondary endoscope stone extraction instrument (such as a stone extraction basket or balloon).

The invention discloses a device for removing stones in hepatobiliary surgery clinically, which comprises a sleeve, a first air guide tube and a second air guide tube are sheathed on the inner surface of the sleeve tube, and a second sealing plug is provided on the left end surface of the second air guide tube. The tube is fixedly connected with an annular support frame through the spokes arranged at the lower end of the outer surface. The lower end of the outer surface of the annular support frame is provided with a cylindrical collection tube, and the lower end surface of the cylindrical collection tube is provided with an annular air bag. This stone removal device in clinical hepatobiliary surgery , compact structure, easy operation, small space occupation when used, can quickly and efficiently remove the stones in the patient's liver and gallbladder, the setting of the sewage collection tube can effectively collect the body fluids in the patient's liver and gallbladder, and at the same time can effectively prevent the patient from The body fluid enters the interior of the negative pressure needle tube, and the setting of the annular air bag combined with the annular rubber band can effectively wrap the stones, effectively preventing the stones from falling from the inside of the cylindrical collection tube during the removal process.

The invention discloses a new type of stone removal device for clinical hepatobiliary surgery, which includes a box body, a second motor is arranged on the inner rear side of the box body, the front output shaft of the second motor is connected to a gear, and an outer tube is arranged on the left front side of the box body. The right end of the outer tube communicates with the through hole on the left front side of the box body, the inner lower side of the outer tube is provided with a chute, the inner part of the outer tube is provided with an inner rod, and the lower side of the inner rod is provided with a slider, which slides with the chute To connect, the right end of the inner rod passes through the right end of the outer pipe and stretches into the casing, and the right end of the inner rod is connected with the left end of the rack. This new type of stone removal device for hepatobiliary surgery is easy to operate, so that the whole device remains stable when medical workers use it, so that the stone can be more accurately aligned with the stone during stone removal, and the wound can be properly opened to facilitate insertion into the wound for stone removal. , Stone extraction can also be performed when the stones are stuck together, blood can be leaked out, and it is convenient to connect medical equipment such as lighting lamps, which is beneficial to the stone extraction work.

The invention discloses a granite cave mining equipment for facing, which comprises a machine body and a rock drilling mechanism arranged on the machine body. A mobile platform that can move left and right on the frame, the rock drilling mechanism can move forward and backward on the mobile platform, and the actions of the movable frame, mobile platform and rock drilling mechanism are all controlled by the controller. The invention is designed for cave mining of stone materials, can realize the mining of stone materials in the horizontal direction, avoids damage to vegetation, protects the environment, and has the advantages of high automation and stable and precise positioning.

The invention discloses a stone removal tool for hepatobiliary surgery. The key point of the technical solution is to include a stone removal tool body, which includes a stone removal tube, a first arc-shaped clamp and a second arc-shaped clamp, a control part, and a first handle. And the second handle, the length direction of the stone-taking pipe and the length direction of the first arc clamp and the second arc clamp are arranged in an L-shaped structure, and the first arc clamp is hinged with several first extension rods, and the second arc clamp A plurality of second extension rods are hinged on the top, a first gap is provided between two adjacent first extension rods, a second gap is provided between two adjacent second extension rods, and a pull rope is arranged inside the stone retrieval pipe, and one end of the pull rope A number of forked ropes are fixedly connected to the inner sidewalls of all the first extension rods and the second extension rods, and are arranged between the first extension rod and the first arc clip, and between the second extension rod and the second arc clip Equipped with a repositioning device, the stone removal device can conveniently and accurately grab stones in the biliary tract.

The invention relates to the technical field of medical devices, in particular to a stone dislodger used for a hepatology department. The stone dislodger includes a shell, a micro pump, an agent box and a control main board. The bottom of the shell is provided with a plugged tube. A sealing plate and a shell inner cavity formed above the sealing plate forms a crushed stone collection chamber, the inside of the plugged tube is divided into a liquid absorption channel and a liquid return channel through a partition, the shell located on the lower portion of the sealing plate is internally provided with the micro pump and the agent box, a stone feeding structure and a stone filtering structure are arranged on the sealing plate, and the input end and output end of the micro pump are connected correspondingly with the liquid return channel and the stone filtering structure respectively, and the control main board is embedded into the outer wall of the shell and electrically connected with the micro pump. The structure is simple, operation is easy, when crushed stones are taken from the bile duct, the plugged tube is inserted only by forming a tiny operation opening, the damage to the liver and the bile duct can be reduced to the maximum extent, and thus convenience is brought to the operation of doctors.

The invention relates to the technical field of hepatobiliary surgery, and discloses a hepatobiliary surgery gall-stone extraction device which comprises an outer cylinder, a partition plate is fixedly mounted in the middle of the inner wall of the outer cylinder, a lead screw is rotatably arranged on the right side of the partition plate, a nut is in threaded connection with the outer wall of the lead screw, and a push block is fixedly mounted on the outer wall of the nut. A push rod is fixedly installed on the side, facing the partition plate, of the push block, and the left end of the push rod penetrates through the partition plate and is fixedly connected with a right side plate. During use, the end, provided with the collecting barrel, of the outer barrel extends into the body of a patient through a minimally invasive wound, then the rotary knob is screwed to enable the lead screw to rotate, the lead screw rotates to drive the nut in threaded connection with the outer wall of the lead screw to move left and right, and the nut moves left and right to drive the push rod to move left and right through the push block; and the right side plate, the collecting barrel and the left side plate can be pushed out of the outer barrel, so that calculi are conveniently collected and are collected into the collecting barrel, and the use is very convenient.

The treatment instrument for endoscope of the present invention includes: an operation wire, which penetrates through the flexible sheath in a manner capable of advancing and retreating; The top end of the part bundles and fixes the top ends of the plurality of stone retrieval basket wires; the binding part bundles and fixes the base ends of the plurality of stone retrieval basket wires; The direction of the central axis of the support member is arranged in such a way as to pass through the inside of the stone retrieval basket, and the top end is fixed to the top end, and the base end of the support member is located on the base end side of the binding portion, and the connected to the operation wire in a manner capable of sliding relative to the operation wire in the direction of the central axis.

The invention provides a transmission mechanism of a fruit stone extractor. The transmission mechanism comprises a bracket, a gear, a motor and a main transmission wheel; the motor is mounted on the bracket; and the gear is engaged with the main transmission wheel. According to the transmission mechanism of the automatic pulp-breaking stone-extraction machine, the motor directly drives the main transmission wheel to rotate through the gear, so that various actions can be realized; improved gear transmission is more reliable than V-belt transmission; and the size of the whole device is much smaller than that of an original device.

The invention belongs to the technical field of medical equipment, and is specifically a urological stone removal device for urinary tract stones, including a casing, an expansion assembly, an operating assembly, a stone grabbing assembly, and a lithotripsy laser. The left side wall of the casing is fixed and installed There is an end cover, an air pump is fixedly installed on the left side of the top of the housing, an air pipe channel is opened inside the housing, a stone extraction channel is opened in the middle part of the inner wall of the housing, and an air pump is fixedly installed on the right side of the housing. The expansion assembly, the middle part of the inner wall of the housing is plugged with the operation assembly, the operation assembly is located in the middle part of the inner wall of the stone extraction channel, the operation assembly includes an adjustment end cover, a pull rod, an adjustment seat and a connecting pipe, the The middle part of the left side wall of the adjustment end cover is plugged with the pull rod, and the right end of the adjustment end cover is screwed to the adjustment seat. This invention can effectively expand the urethra, which is convenient for quick and effective stone grabbing, and is easy to operate Handy mix of effects.

The invention relates to a push type stone removal device for bladder diverticulum calculi, which comprises a mirror body, one end of the mirror body is connected with a telescopic frame body, the other end of the telescopic frame body is provided with a closing assembly, and the telescopic frame body is covered with an elastic cylindrical film. The frame body and the closing assembly are stretched and closed through the drive assembly, and a lithotripsy assembly and an endoscopic imaging assembly are arranged in the telescopic frame, the lithotripsy assembly is a Di laser lithotripsy assembly, and the lithotripsy assembly includes a laser optical fiber; the propulsion of the present invention The stone extraction device for bladder diverticulum stones can confine the stones in the bladder diverticulum in a closed space. When lithotripsy is performed in this closed space, stone residues will not enter the body, and there will be no stone residue after surgery, and will not damage the surrounding area. The tissue is damaged, and the calculus debris has little interference with the endoscopic field of view, and has little impact on the operation process, which can significantly improve the efficiency and effect of the operation, and significantly reduce the pain and burden of the patient.

The invention discloses a hepatobiliary stone removal device, comprising: a push-pull handle, a push-pull catheter, an injection handle, a sheath tube, a mesh basket and an end cap, the sheath tube is arranged at one end of the injection handle, and the push-pull catheter passes through the The injection handle and the sheath are connected to the push-pull handle and the basket, the end cap is arranged on the end of the basket away from the sheath, and the basket is wound by a connecting pipe and a plurality of basket wires It is spindle-shaped, and the mesh basket can be deformed and partially or completely retracted into the sheath by pulling the push-pull handle. In the present invention, the connecting pipe is used as a support, and the mesh basket wire is deformed to insert the stone into the mesh basket when the calculus is taken out, thereby solving the problem that the deformation of the mesh basket wire makes it difficult to press the stone into the mesh basket.

The invention discloses a stone extraction mesh basket for choledochoscopy, which relates to the technical field of medical auxiliary equipment. The output end, the traction wire is connected to the control handle, the adjusting box is set on the upper surface of the support base, the screw is set in the adjusting box, the nut is set on the surface of the screw, the driving motor 1 is set on the surface of the right side wall of the regulating box, and the driving motor 2 is set on the lower surface of the supporting base. One end of the basket is fed into the human body. The operator controls the control handle to unfold the stone basket. The operator controls the control handle to shrink the stone basket to complete the stone removal. The nut drives the right disinfection box to move up and down in the vertical direction. The main gear drives the upper adjustment box and the disinfection box to rotate through the auxiliary gear, and the pressure pump transports the disinfectant to the nozzle through the infusion pipe to realize the disinfection of the tool, which is more convenient to use and easy to adjust.

The invention relates to a torsion control performance testing device and testing method of a medical stone extraction net basket, which is used for testing the torsion angle and torsional force transmission performance of the medical stone extraction net basket, including an active torsion module, a torsion angle transmission test module and a torsional force transmission The active torsion module includes a torsion input module, a tail end clamp, and a first torsion force sensor, which are used to clamp the tail of the medical stone extraction basket, drive the rotation and measure the rotation force and rotation angle; the torsion angle transmission performance test module includes contact Self-stop device and sensor tag, the sensor tag is fixed on the head of the medical stone net basket, and when the sensor tag touches the contact rod of the self-stop device, it triggers the control torsion input module to stop; torsional force transmission performance test The module includes a head end fixture, a second torsion force sensor, and a torsion force feedback module, which are used to clamp the head end of the mesh basket and measure the torsion force. The structure of the device is simple, and the test method is simple and convenient, which provides a new test method for the performance test of the medical stone extraction basket.

The stone extraction basket type treatment instrument of the present invention includes a sheath, a top end cover installed on the top of the sheath and having a plurality of grooves, a plurality of stone retrieval basket wires and an operation wire forming the stone extraction basket, and the plurality of grooves have a first A groove and a second groove, the first groove has a first surface inclined from the bottom surface of the first groove toward the inner peripheral surface of the tip cover, the first surface is passed through the first In the bottom surface of the groove, at least the inner peripheral surface side of the tip cover is chamfered, and the second groove has a second surface from the bottom surface of the second groove toward the tip cover. The inner peripheral surface is inclined, and the second surface is formed by chamfering at least the inner peripheral surface side of the tip cover in the bottom surface of the second groove into a shape different from that of the first surface, and the When the operation wire is pulled with the object to be disposed in the stone retrieval basket, the plurality of stone retrieval basket wires are pulled so as to pass through the plurality of different grooves respectively, and the breaking force of the stone retrieval basket wires is The first side and the second side are different.

The invention provides a stone stopper arranged in a gall duct through a choledochoscope. The stone stopper is a hollow body shaped like a polygonal cone, a pull ring is arranged at the top of the stone stopper, a biofilm is arranged on a side surface of the stone stopper, and an opening is formed in the bottom of the stone stopper; a plurality of elastic metal wires form edges of the polygonal cone, and a bottom end of each elastic metal wire is positioned on a bottom surface of the cone and can be folded to the bottom center of the cone under the action of external force. The stone stopper as a gallstone stopper solves a problem of stone dispersion often occurring in a conventional process of extracting and breaking stones by the choledochoscope, shortens the stone extraction time and reduces stone reoccurrence probability. The stone stopper is simple in structure and convenient in material utilization, has certain flexibility, elasticity and biocompatibility, does not cause a remarkable wound to a patient during operation, and is convenient and reliable to operate, and low in price.