69 results about "Stone removal" patented technology

The invention discloses a magnetic control steerable guide wire and an ERCP biliary tract probing and calculus removing operation method thereof.The magnetic control steerable guide wire comprises a magnetic control guide wire body and an external electromagnetic coil, the magnetic control guide wire body comprises a head end magnetic control module, a flexible transition section, a guide wire body section and a near-end control handle, the tail end of the head end magnetic control module is connected with the flexible transition section, and the tail end of the guide wire body section is connected with the external electromagnetic coil; the tail end of the flexible transition section is connected with a guide wire main body section, the tail end of the guide wire main body section is connected with a near-end control handle, and the external electromagnetic coil comprises an annular coil and an insulating layer.By means of guide wire head end magnetic force control and external magnetic field guiding, the problem that guide wire intubation is difficult due to the fact that a gallbladder duct and a total hepatic duct form an angle is solved; and through magnetic control of the head end of the guide wire and guidance of an external magnetic field, the problem that the guide wire is difficult to intubate due to angulation of the gallbladder duct and the total hepatic duct is solved, and the success rate and the safety of taking out the biliary calculus are 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 present application relates to the technical field of medical devices, and in particular to a negative‑pressure suction sheath. The negative-pressure suction sheath comprises a sheath tube and a directional expansion structure; the sheath tube is arranged at the distal end of the negative‑pressure suction sheath; the distal end of the sheath tube comprises a passive bending section capable of bending along with an active bending section of an endoscope; the side wall of the passive bending section is provided with a through opening; the through opening extends in the extension direction of the passive bending section; the directional expansion structure is connected to the sheath tube and seals the through opening; when the passive bending section bends and compresses the portion of the directional expansion structure sealing the through opening, the compressed portion of the directional expansion structure bulges toward the outside of the through opening. The present application can solve the problem that, when an insertion portion is used to drive the distal end of the sheath tube to bend so as to suction stones at a lateral side, unsmooth stone removal easily occurs.

The invention discloses a negative pressure suction sheath capable of monitoring high pressure in a renal pelvis, and relates to the technical field of medical instruments, the negative pressure suction sheath comprises a sheath tube body, the end part of the sheath tube body is communicated with a sheath tube joint, and the sheath tube joint comprises a negative pressure joint, an instrument channel, a pressure release valve and a pressure measuring interface; the sheath tube body comprises a pressure measuring channel, a pressure measuring hole and a negative pressure suction channel. Through an independent pressure measuring channel composed of the pressure measuring connector, the pressure measuring channel and the pressure measuring hole, the pressure measuring connector, the pressure measuring channel and the pressure measuring hole are matched with a pressure release valve overflow monitoring mode or an external pressure sensor mode, the pressure change in the renal pelvis is captured in real time, when the pressure is close to or reaches a safety threshold value, medical staff can adjust the perfusion flow and the negative pressure parameter in time, and the operation is convenient. Medical accidents such as renal pelvis tissue swelling and necrosis caused by too high pressure are effectively avoided, so that the pressure in the renal pelvis is maintained within a safe range, the safety of an operation is greatly improved, the stone removing efficiency is improved, and the operation time is shortened.

The utility model discloses a disposable endoscopic calculus removing mesh basket, and belongs to the field of endoscopic calculus removing mesh baskets. The disposable endoscope calculus removing mesh basket comprises a calculus removing mesh basket assembly, the calculus removing mesh basket assembly comprises a handle part and a connecting seat arranged at the lower end of the handle part, a catheter is installed at the lower end of the connecting seat, and a mesh basket body is arranged at the lower end of the catheter. One end of the mesh basket body is connected with a guide mesh basket body, an inner arm of the mesh basket body is further provided with an anti-skid protrusion, and an anti-disengaging piece is arranged on the outer side of the mesh basket body. The anti-skidding protrusions can be evenly arranged on the mesh basket body through the adhesive tape layer, when an endoscope is used, the end cap can play a certain guiding role, then the mesh basket body is used for removing stones, the stones can be stably grabbed through the evenly-distributed anti-skidding protrusions, and therefore the purpose of removing the stones is achieved. The stone mesh basket has the advantages that the stone mesh basket is not prone to falling off, stone removal is facilitated, and repeated stone removal operation is avoided.

The invention relates to the technical field of medical instruments, and discloses a common bile duct calculus removing device which comprises a connecting base, a flexible calculus removing catheter and a compliance response balloon which are sequentially connected from right to left, and a microfluid displacement sensing unit and a calculus removing propelling unit are arranged on the outer side of the end, close to the connecting base, of the flexible calculus removing catheter. A plurality of pressure micro-fluctuation acquisition units are distributed on the upper surface of the cavity wall of the compliance response balloon; the flexible calculus removal catheter and the compliance response balloon are fixedly mounted, and a microfluid deformation cavity communicated with the interior of the flexible calculus removal catheter is formed in the compliance response balloon; the microfluid displacement sensing unit is communicated with the microfluid deformation cavity through a microfluid connecting pipe, and the calculus removing propelling unit, the pressure micro-fluctuation collecting unit and the microfluid displacement sensing unit are all electrically connected with a controller. The precision degree in the whole stone removing process is improved.

The present invention discloses a vibrating lithotripsy device for a gastric stone crusher, specifically relating to the technical field of stone removal, comprising a protective tube, a stone crushing assembly being provided on the protective tube, and the stone crushing assembly comprising a tray provided in the protective tube. The present invention uses the corresponding coordinated use of various structures, so that one end of each reinforced electroplated stone removal clamp rod is gathered together. When the reinforced electroplated stone removal clamp rods are gathered together, a function of wrapping the stone is formed. The amplitude generated by the micro-vibration motor is transmitted to the contact plate, and is transmitted through the conduction disk and the amplitude conduction rod body. When the amplitude is transmitted to the connecting disk, it is transmitted to the reinforced electroplated stone removal clamp rod via the shaft pin rod, and the nylon stone removal clamp head can abut against the stone, while the anti-slip strip increases the friction between the stone and the nylon stone removal clamp head, making it convenient for the stone to be clamped by the reinforced electroplated stone removal clamp rod and the nylon stone removal clamp head after falling off, making it easy for the stone to be removed, making stone removal more convenient.

The utility model provides a choledochoscope calculus removing net basket which comprises a metal net basket, an outer sheath tube and a handle, and the outer sheath tube is connected with the handle. The metal mesh basket comprises four mesh basket wires and a connecting rod, the head ends of the four mesh basket wires are fixedly connected together and are in an inverted omega shape, and the head end of the connecting rod is fixedly connected with the tail ends of the four mesh basket wires; the outer sheath tube comprises a drainage tube section I, a drainage tube section II and a drainage tube section III, and the head end of the metal net basket is contained in the drainage tube section I; the drainage tube section II is a four-channel tube, four channels I are formed in the drainage tube section II, and a mesh basket wire is accommodated in each channel I; the connecting rod is arranged in the drainage tube section III; the lower end of one side of the handle is biconcave, the upper end of the other side of the handle is provided with a push rod moving button, and a push rod is arranged in the handle and connected with the connecting rod and the push rod moving button. The calculi in the gall bladder or the bile duct can be extracted through the choledochoscope, the mesh basket wires form the spherical mesh basket from small to large when being led out through the four channels, the spherical mesh basket is stable in shape, and the calculi of different sizes can be extracted conveniently.

The invention discloses a disposable ureter lithotripsy and calculus discharging device, and belongs to the technical field of urinary surgery minimally invasive surgical instruments, and the disposable ureter lithotripsy and calculus discharging device comprises a disposable ureteroscope, comprising a head end seat, a camera module assembled on the head end seat, a temperature and pressure sensor assembled on the head end seat, a snake bone connected with the head end seat, and a hose connected with the snake bone, the head end seat is provided with at least two channels; wherein one channel is configured as a water injection channel, and the other channel is configured as a suction intervention channel; the handle assembly is connected with the insertion assembly; according to the disposable ureteral lithotripsy and lithotripsy device, a traditional lithotripsy and lithotripsy operation mode is changed, and the problems that a traditional ureteral lithotripsy and lithotripsy system is complex in operation and large in material consumption, real-time temperature and pressure monitoring cannot be conducted, and the temperature and pressure in the body cannot be adjusted are solved.

The present invention provides a device for gallstone surgical removal, which belongs to the field of medical device technology. It includes a minimally invasive channel, a puncture needle tube is inserted into the minimally invasive channel, a support tube is inserted into the puncture needle tube, one end of the support tube is fixedly connected to a handle, the other end of the support tube is fixedly connected to an expansion port, a fixing plate is fixedly connected to the outer wall of the support tube, three sliding blocks are fixedly connected to the inner wall of the expansion port, two support frames are fixedly connected to the top outer wall of the handle, and a through hole is opened on the handle; the clamping component is used to clamp the gallstones in the patient's gallbladder, and the cutting component is used to cut up larger gallstones in the patient's gallbladder. By setting up the cutting component, the present invention allows doctors to cut up large gallstones in the gallbladder. If large stones are not cut, the operation time may be prolonged or the incision on the outer wall of the gallbladder may be torn, affecting postoperative recovery. Using the cutting component, doctors can directly cut stones when clamping, without changing tools, thereby reducing operation time.

Medical devices for use during a stone removal intervention as well as methods for treating a stone along a urinary tract are disclosed. An example medical device may include an elongate shaft having an injection lumen formed therein. The elongate shaft may be configured to navigate through a body lumen or a body tissue to a position adjacent to a stone disposed along a urinary tract and / or adjacent to a kidney. The capturing substance may be disposed within the injection lumen and may be configured to be injected into the urinary tract adjacent to the stone.

The invention belongs to the technical field of medical instruments, and discloses a urinary surgery calculus removing device which comprises a sleeve and a push rod, the sleeve is connected with a protective cover, a catheter and an encircling plate, the sleeve is provided with a notch, a through hole and a sliding groove, the encircling plate is rotationally connected with a linkage rod slidably arranged in the through hole in a penetrating mode, and the linkage plate is connected with a connecting block slidably connected with the sliding groove. A protective cover is arranged between every two adjacent surrounding plates. The push rod is connected with a handle and a motor, an output shaft of the motor is connected with a spherical crushing drill bit, the outer surface of the crushing drill bit is connected with an arc-shaped protrusion, and the free end face, away from the linkage rod, of the connecting block is connected with a shell of the motor. The handle is used for controlling the four surrounding plates to be opened and / or closed, stones and fragments are wrapped and collected on the inner side of the space defined by the four surrounding plates, the motor is used for driving the crushing drill bit to operate to crush the stones and the fragments, the stone and fragment removing effect is good, and the removing efficiency is high.

The utility model relates to the technical field of urethral calculus removing, in particular to a urethral calculus removing device which comprises a catheter, a guide wire, a mounting block and two clamping arc plates. The guide wire positioning device has the advantages that opening and closing of the sliding grooves can be controlled by pushing and pulling the sliding plate through the top plate, then the positioning teeth can flexibly slide in the fixing plate through the sliding grooves, when the sliding plate slides along the sliding grooves and is tightly attached to the guide wire, the sliding plate can be clamped between the two positioning teeth to fix the guide wire, and then positioning of the guide wire is achieved; according to the calculus removing device, the position of the clamping arc plate can be fixed to clamp the calculus, the situation that the guide wire slides back and forth after the calculus is clamped by the clamping arc plate is avoided, then the calculus is more stably clamped by the clamping arc plate, calculus removing is more accurate and rapid, and pain of a patient in the calculus removing operation process can be greatly relieved.

The utility model relates to the technical field of medical instruments, in particular to a calculus removing device for a biliary tract. The calculus removing device for the biliary tract comprises an operating handle, a push-pull guide wire, a traction guide wire, a catheter and a calculus removing basket assembly. And the operating handle is used for controlling the push-pull guide wire and the traction guide wire. And the push-pull guide wire and the traction guide wire are connected with the operating handle. And the traction guide wire and the push-pull guide wire are coaxially arranged in the catheter. The push-and-pull guide wire is internally provided with a channel for the traction guide wire to penetrate through. The calculus removing basket assembly comprises an elastic wire, a first connector and a second connector. And the plurality of elastic wires are arranged between the first connector and the second connector to form a net structure for capturing stones. And one end of the elastic wire is connected with the first connector. And the other end of the elastic wire is connected with the second connector. And the first connector is connected with the traction guide wire. And the second connector is connected with the push-pull guide wire. According to the calculus removing device for the biliary tract, the operation difficulty is reduced, and the controllability of the basket net structure is improved.

This invention discloses a disposable ureteral lithotripsy and stone removal device, belonging to the field of minimally invasive surgical instruments in urology. It includes: a disposable ureteroscope, comprising: an insertion assembly including: a tip, a camera module mounted on the tip, a temperature and pressure sensor mounted on the tip, a snake-like bone connected to the tip, and a flexible tube connected to the snake-like bone; the tip has at least two channels, one configured as a water injection channel and the other as a suction intervention channel; a handle assembly connected to the insertion assembly; and a disposable ureteral lithotripsy and stone removal system connected to the handle assembly. This disposable ureteral lithotripsy and stone removal device changes the traditional surgical method of lithotripsy and stone removal, solving problems such as the complexity of operation, high consumable costs, inability to perform real-time temperature and pressure monitoring, and inability to regulate internal temperature and pressure in traditional ureteroscopic lithotripsy and stone removal systems.

The utility model discloses a variable-diameter bendable negative pressure sheath, which belongs to the technical field of medical instruments and comprises a sheath tube, a sheath tube soft head, a sheath tube joint, an expansion tube, an expansion tube joint and a sealing cap. The sheath tube is a conical tube body and is a single-cavity body, one end of the sheath tube is connected with a sheath tube soft head, the other end of the sheath tube is connected with a sheath tube connector, the outer diameter of the sheath tube is gradually increased from the sheath tube soft head to the sheath tube connector end, the sheath tube soft head is a flexible hose, the sheath tube connector is provided with an insertable expansion tube opening, and the sheath tube connector is provided with an expansion tube opening. The expansion tube enters the sheath tube from the expansion tube opening, an expansion tube joint capable of being buckled on the sheath tube joint is arranged at one end of the expansion tube, and the sheath tube joint is sealed by a sealing cap when the expansion tube is not inserted into the sheath tube. According to the utility model, the sheathing canal can conveniently reach the deep part of each renal calyx for lithotripsy and calculus suction, as the inner cavity of the sheathing canal is gradually enlarged, the phenomenon that the sheathing canal is blocked by the calculus is avoided in the negative pressure calculus removal process, the calculus suction is faster and smoother, and the calculus removal and discharge are efficient.

The present technology includes stone removal devices for capturing, fragmenting, dusting, and / or removing pathological objects such as urinary stones from within a patient. The removal devices may include an expandable distal complex that can capture and isolate some or all of a target stone. The distal complex may further include a combination of energy sources, including laser energy, ultrasonic energy, mechanical energy, hydraulic energy (e.g., high pressure water jets), and / or other energy sources and features for fragmenting or dusting the captured target stone. The fragmented or dusted target stone can then be removed via an aspiration lumen extending through an elongated shaft of the removal device.

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.

This invention provides a novel medical device for performing precise urological procedures, specifically focusing on urological stone removal. The illustrative Stone Removal Robot leverages multiple subsystems to autonomously remove stones while using real-time image guidance for precise targeting and minimal collateral damage. This system is particularly suited for use in urology, though its applications can extend to other surgical fields. The key benefit of this invention lies in its ability to provide enhanced accuracy, reducing the potential for human error, while integrating multiple lithotripsy methods termed herein, Method1, Method2, Method3, which may incorporate cooling to protect surrounding tissues. The system can be adapted for autonomous operation.

The invention belongs to the technical field of urinary surgery minimally invasive medical instruments, and particularly relates to a urinary system calculus removing device and a urinary system calculus removing method.The urinary system calculus removing device comprises a shell, the front end of the shell is fixedly connected with a guiding hose, and a lens through hole, a water inlet hole and a laser guide wire through hole are formed in the guiding hose; the tail end of the shell is connected with a water inlet of the filtering component through a pipeline, an air inlet of the filtering component is connected with a negative pressure suction machine through a pipeline, a water inlet pipe is arranged on the side wall of the shell, and the water inlet pipe penetrates through the shell to be connected with the water inlet hole. The lens through hole, the water inlet hole, the laser guide wire through hole, the smashing component through hole and the telescopic rod through hole are formed in the shell, independent operation of each work is guaranteed, stone smashing, grinding and collecting are conducted synchronously, the laser guide wire does not need to be pulled out or instruments do not need to be replaced in the operation, and the operation efficiency is greatly improved.

The stone removal device of this invention includes a removal mechanism, an outer sheath, a handle grip, and a control mechanism. The removal mechanism includes a removal end and a connecting part; the removal end is located at the distal end of the connecting part, and the proximal end of the connecting part is connected to the control mechanism; the removal mechanism is built into the outer sheath; the handle grip is located at the proximal end of the outer sheath. Before entering the cavity, the removal end is built into the outer sheath; after entering the cavity, the control mechanism controls the removal end to enter and unfold within the cavity via the connecting part, thus removing the attached stone. The removal end is made of medical-grade elastic material, which not only has good strength to ensure the removal effect, but also has deformation capability. When the force is too great, it can undergo moderate elastic deformation, preventing accidental damage to surrounding tissues due to excessive force or sharp edges, making clinical use safer.

The invention provides a gallbladder-preserving and calculus-removing tunnel capsule. The gallbladder-preserving and calculus-removing tunnel capsule comprises a soluble protective shell and a flexible capsule body, an open hole is formed in the top of the soluble protective shell, and the flexible bag body is arranged in the soluble protective shell in a compressed state. The flexible balloon body comprises a tunnel tube and an operation balloon, the first end of the tunnel tube is communicated with the operation balloon, and the second end of the tunnel tube extends out of the soluble protective shell along the open hole. An operation end is arranged on the operation balloon, an annular containing cavity is formed between the outer side wall and the inner side wall of the operation end, an operation area is formed on the inner side of the annular containing cavity, and an operation hole is formed in the inner side wall of the operation end. A necking line is arranged in the annular containing cavity, an operation line end is arranged at one end of the necking line, and the operation line end extends into the operation balloon along the operation hole. According to the gallbladder-preserving and calculus-removing tunnel capsule, a connecting operation channel can be established between the gallbladder and the stomach in the gallbladder-preserving and calculus-removing process, and bile and calculus are prevented from entering the abdominal cavity.

The invention provides a mesh basket assembly. The mesh basket assembly comprises a sheathing canal and a protective cover. The sheathing canal is used for introducing a surgical instrument; the protective cover comprises an annular tube body connected to the tail end of the sheath tube, a plurality of supporting strips extending from the end, away from the sheath tube, of the tube body, and a covering film. The supporting strips are made of elastic materials, the multiple supporting strips are distributed at intervals along the tail end of the pipe body and jointly define an annular structure, the covering film is an annular film made of elastic materials, and the covering film is arranged on the annular structure defined by the supporting strips and fixedly attached to the supporting strips. When the annular structure defined by the supporting strips bears thrust in the outward direction from the inner side of the annular structure, the supporting strips expand outwards to be in a horn shape, and when the thrust disappears, the supporting strips bear elastic restoring force of the covering film and restore to the initial state. The invention further provides a stone breaking and clearing protection device. Compared with the prior art, the mesh basket assembly and the stone breaking and clearing protection device are better in stone breaking and clearing safety.

The present application relates to the technical field of medical devices, in particular to a dilatable sheath type endoscopic biliary mud-like stone removal device, which comprises an outer sleeve, a flushing unit, a hollow working sheath, a spiral inner core assembly, a rotary drive unit and a vibration generating unit. The flushing unit, flexible conducting rod, spiral blade and vibration generating unit work together to continuously discharge the biliary mud-like stones. The positive pressure of the flushing liquid forms a forward flow in the bile duct, and the axial conveying force of the spiral blade discharges the stones in the outward direction, effectively avoiding the stones being pushed to the distal end of the bile duct, improving the complete removal rate of the stones, overcoming the problems of the existing dredging device, such as easy adsorption to the bile duct wall when using negative pressure suction, causing mucosal vessel rupture, and possibly sucking bacteria from the duodenal papilla into the bile duct, causing infection, and greatly improving safety.

The invention discloses a nipple dilation system. The nipple dilation system comprises a conveying assembly and a dilator. The conveying assembly comprises a first pipe body and a second pipe body which are both of a hollow structure, and the first pipe body is arranged on the outer side of the second pipe body in a sleeving mode. The dilator is configured to be contracted between the first tube body and the second tube body when not in a working state and released by the relative movement of the first tube body and the second tube body when in a working state, and the released dilator expands in the radial direction so as to dilate a narrow duodenal papilla opening to a preset diameter. And a temporary calculus removing channel is established. The dilator only mechanically and temporarily dilates the duodenal sphincter without damaging the duodenal sphincter, and the duodenal sphincter recovers to the initial state after the dilator is taken out. Therefore, when the nipple dilatation system is used for assisting calculus removal operation, the sphincter is only subjected to temporary and recoverable dilatation and cannot be cut, it can be guaranteed that the function of the duodenal sphincter cannot be lost, and noninvasive dilatation is achieved.

The present invention relates to the technical field of hepatobiliary auxiliary instruments, and specifically to a precision-controlled manipulator-assisted hepatobiliary surgical stone removal device, comprising a puncture tube for performing puncture in the body, one end of the puncture tube being provided with an expansion mechanism for forming a support space in the body; the expansion mechanism comprising a processing groove provided inside the puncture tube, and a plurality of expansion strips being gap-fitted in the processing groove; a driving shaft being rotatably fitted at the center of the puncture tube; a collecting port being connected to one side of the processing groove, and a cutting mechanism for cutting tissue in the body being rotatably fitted on the driving shaft, and the cutting mechanism being gap-fitted with the collecting port; a camera for real-time image data collection is also fixedly connected inside the puncture tube, and the camera is located at the top of the processing groove, and the position of the camera corresponds to the position of the collecting port; the camera is electrically connected to a control panel, and the control panel is used to display image data in real time; the present invention facilitates the regulation of the stone removal position, and stone removal can be repeated multiple times according to the needs of stone removal, thereby improving the accuracy and efficiency of stone removal.

The invention relates to the technical field of urinary external medical instruments, and particularly discloses a urinary surgery calculus removing device which comprises a base, a bed body is mounted at the top end of the base, two positioning seats are fixedly connected to the top end of the bed body, a first electric push rod is fixedly connected to the interior of the bed body, and a sliding plate is fixedly connected to the driving end of the first electric push rod. A pedal plate is mounted in the sliding plate, a pressure sensor is mounted on the front side of the sliding plate, two bandages are arranged at the top end of the bed body, and an elastic mechanism used for adjusting the tightness of the bandages is arranged at the rear end of the bed body. The tightness of the bandages is adjusted according to the inclination angle of the bed body, the phenomenon that in the long-time calculus removal medical treatment process, tightening marks of the bandages in the tightened state on the skin of a patient are reduced, the discomfort caused when the patient is bound is reduced, and the use flexibility and applicability are improved.

The utility model relates to the technical field of medical instruments, in particular to a urinary plugging calculus removal catheter capable of achieving negative pressure suction, which comprises a catheter body, one end of the catheter body is a plugging part, the other end of the catheter body is connected with a negative pressure device, the plugging part is configured to be switched between an opening state and a containing state, and when the plugging part is in the opening state, the negative pressure device is connected with the negative pressure device. The plugging part is bent to form a spiral plugging structure, and a plurality of suction openings used for sucking broken stones under the negative pressure effect of the negative pressure device are formed in the plugging part. According to the utility model, the plugging part and the suction port on the plugging part are utilized to integrate the functions of plugging, calculus removal and the like, so that the times of taking out and entering a human body cavity caused by insufficient endoscope cavities are reduced, the injury of the instrument to the human body cavity is reduced, the pain of a patient is reduced, and the working efficiency is improved. In addition, the broken stones are sucked through negative pressure, so that the problem that a mesh basket is loose when a traditional mesh basket is pulled during stone removal can be avoided, and stone removal is more thorough.

A removable cap for an endoscope for use with a surgical laser to improve the stone removal rate (SFR) of lithotripsy procedures. The removable cap includes a filter configured to block or filter light at a wavelength that is an optical wavelength from an aiming beam generated by the surgical laser.