86 results about "Cystoscopes" patented technology

Method and surgical instrument for treating prostate tissue including a surgical instrument having a main body, a needle deployment port, a needle, first and second handles and a lockout release mechanism to limit needle extension. Additionally, a kit includes the surgical instrument, together with a cystoscope, and optionally a syringe and reservoir of ethanol. The method includes needle-less injection and visualizing the ethanol injection by delivering both an echogenic agent and ethanol either by needle or needle-less injection or by providing an ultrasonically visible marker near the tip of the ethanol delivery cannula. The method also includes extending the needle transversely of the instrument housing using a link assembly.

A mechanism and method for steering a surgical instrument inserted into an endoscope such as a ureteroscope, nephroscope, or cystoscope, and / or for steering the endoscope, utilizes a shape memory structure secured to the surgical instrument or to the endoscope, the shape memory structure having a transformation temperature slightly greater than that of the human body so that bending of the shape memory structure, and therefore of the surgical instrument or endoscope, may be carried out by raising a temperature of irrigation fluid in the working channel. The steering mechanism may be used as a supplement to a tensioned-wire steering mechanism, reducing stress on the endoscope shaft and extending the service life and repair interval of the endoscope. In addition, when the surgical instrument is a glass optical fiber, the steering mechanism may be used to ensure that a tip of the optical fiber is within the field-of-view of fiber optics incorporated into the endoscope.

A disposable sheath to be used in conjunction with a cystoscope or endoscope. The disposable sheath including an external wall having a proximal end and a distal end. The sheath also including a first channel disposed within the external wall. The first channel including an interior wall defining a hollow chamber and a longitudinal axis passing through a center of the first channel. The first channel having an enlarged integral portion or abutment disposed within the hollow chamber. The enlarged integral portion or the abutment having wall that extends from the interior wall of the first channel toward the longitudinal axis that passes through the center of the first channel to guide the cystoscopic accessory.

The invention discloses an ultrasonic cystoscope which belongs to the technical field of medical apparatuses. The ultrasonic cystoscope is formed by organically combing an altered scleroid cystoscope with a miniature ultrasonic probe, and has the functions of a cystoscope and ultrasonic inspection. The ultrasonic cystoscope comprises an endoscope main body. The endoscope main body comprises a scleroid endoscope end part, and an apparatus passage, a cold light source input end and an eye lens input end which are communicated with the scleroid endoscope end part. A lens sheath is arranged outside the endoscope main body, and an operator with at least one apparatus passage is connected with the lens sheath. The miniature ultrasonic probe used for carrying out real-time ultrasonic scanning on bladders is arranged in the apparatus passage of the endoscope main body. The ultrasonic cystoscope can exactly fix the position, the size, the appearance and the range of focus, enhance the accuracy of bladder examination, diagnosis and operation, make up the shortage of the current diagnosis and treat methods and better diagnose and treat various bladder diseases. In addition, the ultrasonic cystoscope has favorable grippage, which is convenient for operations to be carried out successfully.

The invention relates to a disposable cystoscope sheath used with endoscope, which comprises an endoscope channel and an operating channel which are arranged inside the cystoscope sheath, wherein the endoscope channel is connected in parallel with the operating channel with inner cavities thereof communicated with each other, the endoscope channel made of medical hard plastic has the cross section in an elliptical shape with a gap, and the axial edge of the gap is connected with the axial edge of the gap of the section of the operating channel which is made of soft silica gel material. The disposable cystoscope sheath has the advantage that: since the elliptical endoscope channel reduces the area of an insertion opening, relatively small damage is caused to urethra so that patient feels comfortable; certain elasticity resulted from the soft silica gel material of the operating channel relatively increases the space of the operating channel, thereby facilitating operation; the disposable cystoscope sheath has the characteristics of low manufacturing cost, disposability, good cleanness and avoiding cross infection among patients, and can also serve as an outer sheath for ureteroscope and simultaneously monitor images of bladder and ureter, thus operation time is saved and operations are safer.

The invention discloses an electronic cystoscope which comprises a soft tube, a hard tube and a displayer. The hard tube is sleeved with the soft tube, and an instrument channel, an endoscopy channel and an illumination channel are arranged in the hard tube; a lens and an image sensor are arranged in the endoscopy channel, and a light source is arranged in the illumination channel; the hard tube is provided with an instrument hole communicated with the instrument channel, a lens hole communicated with the endoscopy channel and a light-out hole communicated with the illumination channel; the lens hole is matched with the lens, the light-out hole is matched with the light source, and the image sensor is electrically connected with the displayer. According to the electronic cystoscope, by the adoption of the design that the hard tube is wrapped in the soft tube, the tube insertion softness is moderate, the pain of a patient is relieved, and the accuracy of a diagnosis result is improved. Meanwhile, the image sensor is used for replacing an existing image optical fiber, so that production cost is lowered, and the electronic cystoscope has extremely good popularization significance.

The invention discloses a ureteral stent, which comprises a body and a pull wire, wherein the body is of a tubular structure, two ends of the body are bent into arcs in opposite directions, the pull wire is wound on the body and positioned at one end of the body, one end of the pull wire is fixed to the body, the other end of the pull wire is separated from the body, an outer layer of the pull wire is coated with a degradable coating layer after the pull wire is wound, and the wound pull wire wraps the body. Compared with the prior art, the ureteral stent has the advantages that the pull wire can be automatically released after the ureteral stent is placed into a body for a period of time, and the ureteral stent can be removed by pulling the pull wire outside the body, so that removal of a cystoscope can be avoided, the pain of a patient caused by cystoscopy operation is relieved, and injury to the patient caused by removal of the cystoscope is avoided.

The invention discloses a cystoscope surgery simulation training operating table which comprises a base, a strut, a sleeve and a cystoscope operating rod. The lower end of the strut is installed on the base in a horizontally rotatable mode. The sleeve is hinged to the upper end of the strut in a vertically rotatable mode. One end of the cystoscope operating rod is inserted in the sleeve in a forwardly and backwardly movable mode. A magnet ring and a first coding disc used for detecting the vertical rotation angle of the sleeve are arranged in the sleeve. The cystoscope operating rod is provided with a magnescale sensor matched with the magnet ring. A second coding disc used for detecting the horizontal rotation angle of the strut is arranged at the bottom of the strut. The invention further discloses an implementation method of the cystoscope surgery simulation training operating table. The cystoscope surgery simulation training operating table is simple in structure, capable of being used for a high-emulation operation and quite suitable for green hands or beginners in training.

Thrombus evacuator devices are provided. A cystothrombus provides an aspirator tube fluidly communicating to a suction intake, wherein a maceration blade is provided within the aspirator tube adjacent to the suction intake. A rotational element us operatively associated to the maceration blade for morcellating blood clots urged through the suction intake, wherein the aspirator tube is dimensioned to slidably nest in a cystoscope sheath adapted to be inserted into a human urethra. In another embodiment, a gastroentro-thrombus evacuator includes a double lumen tube having non-fluidly connected first and second lumens terminating into a coupling cavity of a coupling device removably attached to a distal end of the double lumen tube. The coupling device provides a suction intake and a flushing outlet fluidly communicating with the coupling cavity. A rotating maceration blade is operational adjacent to the suction intake, while a suction is urged through the first lumen.

The invention relates to a cystoscope with a swinging head end. The cystoscope comprises a light source, a light transmission optical fiber, an imaging optical fiber, an image transmission optical fiber and an image display device, wherein the imaging optical fiber and the light transmission optical fiber are arranged in a sheath tube which is composed of a sheath tube body I and a sheath tube body II, the sheath tube body I is hinged to the sheath tube body II, and the outer wall of the sheath tube body I is provided with a sliding groove in the axial direction. An endoscope further comprises a swinging drive device which mainly comprises a gear, a rack and a push-pull piece, the rack is stuck in the sliding groove, the gear is mutually meshed with the rack and can freely rotate, and the end, away from the gear, of the rack is connected with the sheath tube body II through the push-pull piece. According to the cystoscope, the head end can swing in different degrees according to needs, the cystoscope is suitable for diagnosing any portion in the bladder, no blind areas exist in the bladder in the view, defects of an existing cystoscope are made up for, the diagnosis confirmation rate of the cystoscope is improved, a regulating mode accords with the pure mechanical principle, energy can be saved, complication of the cystoscope is reduced, and feasibility is improved.

The invention discloses a cystoscope with living body real-time Raman spectrum detection and a method. The method is capable of solving the problem in the prior art that the cystoscope cannot confirm a suspicious neoplasm in real time and a small focus cannot be accurately verified. The cystoscope has the effects of detecting the living body in real time, and identifying a chronic disease. The solution is as follows: the cystoscope comprises a cystoscope body. An operating channel is formed in the cystoscope body. A first pipeline and a Raman spectrum channel are installed in the operating channel. A light source channel and an endoscope channel are installed in the first pipeline, and the end part of the first pipeline is provided with a normal lens. The Raman spectrum channel is connected with a slantwise installed hose. The Raman spectrum channel is internally provided with a Raman spectrum optical fiber with a Raman spectrum analysis lens. The Raman spectrum analysis lens has the set toughness. The side wall of the cystoscope body is provided with a cold light source interface communicated with the light source channel and a Raman spectrum operation port for operating the Raman spectrum optical fiber. The end part of the cystoscope body is provided with a tail end for operating the operating channel.

The invention provides an intracavitary visible photodynamic therapeutic instrument. The instrument comprises an endoscope or inner endoscope, a laser light source and a laser conductive fiber, wherein one end of the laser conductive fiber is arranged in a cold light source channel of the endoscope, while the other end is connected with the laser light source; the endoscope or inner endoscope is one of a laparoscope, a joint endoscope, a thoracoscope or neuroendoscope, a gastroscope, a cystoscope and the like. The instrument realizes visible lighting in a body cavity by using the endoscope or inner endoscope, and introduces the laser light source to the lesion location in the body cavity so as to provide clear view for implementing gross resection surgeries, radiate by laser, and increase time for killing tumor cells. Furthermore, the instrument has small toxic or side effect, overcomes the defects of local cancer tissue invasion, lymph node metastasis, hematogenous metastasis, tumor cell detachment and implantation and the like which cannot be solved by chemotherapy, radiotherapy and other means. Based on application of photosensitizer, the actual range of a malignant lesions can be displayed, and 'target lesion' can be treated actively. The instrument has reasonable and simple structure, and can provide visible lighting in the body cavity to implement effective treatment on the 'target lesion'.

The invention discloses a set of genes used for bladder cancer detection and application. The set of genes used for bladder cancer detection comprise the following 32 genes: a CA9 gene, a CDK1 gene, aCTSE gene, a DMBT1 gene, an ERBB2 gene, an HOXA13 gene, an IGF2 gene, a CXCR2 gene, an MAGEA3 gene, an MDK gene, an MMP1 gene, an MMP12 gene, a RBP2 gene, a CCL18 gene, an SNAI2 gene, a VEGFA gene, an MFAP5 gene, an SGK2 gene, a WFDC2 gene, a POSTN gene, an NPFFR2 gene, an ANXA10 gene, a CTAG2 gene, a ZDHHC2 gene, a KRT20 gene, a PPP1R14D gene, an FGD3 gene, an AHNAK2 gene, an SEMA3D gene, a ZNF707 gene, a LOC100652931 gene and an LINC00565 gene. High accuracy and objective result interpretation by adopting a detection kit of the set of genes for bladder cancer detection are proven clinically; meanwhile, as non-invasive detection, compared with existing cystoscopy, the detection kit has the advantage that the compliance of a patient is greatly improved, and the detection kit has importantclinical significance to early detection and postoperation monitoring of bladder cancer.

The invention discloses transurethral double-operation-channel bladder tumor laser monoblock excision equipment, which comprises an outer sheath, an operation sheath, a cystoscope endoscope, a laser optical fiber, traction pliers and pushing pliers, wherein the outer sheath comprises an outer sheath body, a water feeding connector and a water discharging connector; the inner end side wall of the outer sheath body is provided with a plurality of perfusion holes; the operation sheath comprises a bladder endoscope operation pipe, a laser operation pipe and an auxiliary pliers operation pipe, wherein the bladder endoscope operation pipe, the laser operation pipe and the auxiliary pliers operation pipe are arranged in parallel, and the operation sheath can be put in the outer sheath body; the bladder endoscope comprises an eyepiece, an endoscope body, an objective lens and a light guiding barrel, wherein the endoscope body of the bladder endoscope can be put in the bladder endoscope operation pipe; the laser optical fiber can be put in the laser operation pipe; the traction pliers and the pushing pliers independently comprise a handle, a pliers rod and a pliers head and can be put in the auxiliary pliers operation pipe; the pliers clamping surface of the pliers head of the traction pliers has a fine grained structure, and the outer end of the pliers head of the traction pliers has a mouse tooth structure; the handle has a buckling and locking structure; and the pliers clamping surface of the pliers head of the pushing pliers has a sawtooth structure. The transurethral double-operation-channel bladder tumor laser monoblock excision equipment has the advantages that a surgeon can conveniently operate the transurethral double-operation-channel bladder tumor laser monoblock excision equipment, operation is more accurate, an applicable range is wide and the like.

The invention provides a ureteral stent tube. The ureteral stent tube comprises a tubular body and a traction line, wherein the body is provided with a first end and a second end which are arranged oppositely; the first end of the body is bent into a circular arc shape, and the second end of the body is bent into a circular arc shape; the bending direction of the second end of the body is oppositeto that of the first end of the body; the traction line is fixed on the tube wall of the body through a degradable fixing line; one end of the traction line is a fixed end, and the other end of the traction line is a free end; and the fixed end of the traction line is fixed with the end part of the first end of the body. Compared with the prior art, the ureteral stent tube provided by the invention has the advantages that: the traction line can be automatically released after the ureteral stent tube is placed into a body for a period of time, and the ureteral stent tube can be pulled out by pulling the traction line in vitro, so that pain of a patient caused by cystoscope operation and injury to the patient during pulling are relieved; and the ureteral stent tube has the advantages of controllable time, convenience for pulling and the like.

The invention relates to a transurethral bendable manual cystoscope, comprising a cystoscope body and a three-degree-freedom driving unit; the cystoscope comprises a high definition camera with a lighting module, a fixing disk, two first structure bones, a second structure bone, a supporting component and a thin wall pipe with a circular section, wherein two first structure bones and one second structure bone are evenly distributed in the form of triangle, and front ends of the three are commonly and tightly connected to one side of the fixing disk; the other side of the fixing disk is fixedly connected with the high definition camera, the lighting module of the high definition camera is located on an extension line of the second structural bone; the supporting component is a slender body structure, and the back end of the supporting component is connected with the three-degree-freedom driving unit; a channel for making cables of the first structure bone, the second structure bone and the high definition camera cross through are arranged on the supporting component; two first structure bones and the back end of the second structure bone are connected with the three-degree-freedom driving unit after crossing through the supporting component; the thin wall pipe is sleeved at the outer part of the supporting component.

A cystoscope device and method for operating and using same are disclosed. The cystoscope comprises a sheath and a bridge removably connected thereto. The bridge includes an offset lens assembly including an upper eyepiece; a light source, and a fiber optic connected to a light source. The lens or eyepiece enables observation within a urological organ while contemporaneously conducting a urological procedure.

The invention discloses use of tumor markers CA9 and UCA1 in the preparation of a kit for non-invasive detection of a probability of bladder cancer. The use can be used for initial screening and postoperative follow-up of suspected bladder cancer, reduce the frequency of cystoscopy, reduce the pain and risk of a patient, and have important significance for filling the blank of a domestic moleculardiagnosis product of bladder cancer in vitro.

The invention discloses a glandular cystitis and bladder cancer diagnosing and distinguishing marker, and a glandular cystitis and bladder cancer diagnosing reagent or kit. The biological marker comprises Tiglylcarnitine, arachidonic acid, lysophosphatidylcholine (18:2) and lysophosphatidylcholine (20:3). The AUC is 0.872 when combination of the Tiglylcarnitine, arachidonic acid, lysophosphatidylcholine (18:2) and lysophosphatidylcholine (20:3) is applied to diagnose and distinguish glandular cystitis and bladder cancer, so the combination has certain accuracy. The biological marker can be used for noninvasive diagnosis and distinguishing of the glandular cystitis and bladder cancer, overcomes shortages of cystoscope inspection, is hopeful to substitute biopsy, and can be used to form a diagnosing reagent or kit.

The invention belongs to the field of medical devices and particularly discloses an integrated rigid ultrasonic cystoscope system which comprises a rigid cystoscope and a cold light source host and a camera host connected with the rigid cystoscope, wherein the rigid cystoscope comprises a main body endoscope part and a cystoscope sheath tube part connected with the main body endoscope part, a micro-ultrasonic probe part, a light guide optical fiber and a device channel outlet are arranged at a rigid endoscope end part, and the micro-ultrasonic probe part is directly integrated at the rigid endoscope end part, thereby designing the rigid cystoscope into the integrated rigid ultrasonic cystoscope. The integrated rigid ultrasonic cystoscope system is placed into the bladder through the urethra of a patient, and a doctor operates a control unit of a cystoscope body for starting the micro-ultrasonic probe part of an endoscope, thereby carrying out annular scanning or linear scanning on the bladder cavity, displaying the scanning result in a monitor, carrying out three-dimensional reconstruction on the bladder cavity, knowing the situation of the bladder cavity and helping the doctor made judgments. The integrated design of the integrated rigid ultrasonic cystoscope leads the micro-ultrasonic probe part to be difficult to be damaged and facilitate the operation of the doctor; furthermore, an endoscope image and an ultrasonic image are easier to be obtained synchronously, thereby improving the image quality of the lesion area and greatly improving the accuracy of diagnosis.

The invention discloses an OCT (optical coherence tomographic) rigid cystoscopy system which comprises an OCT rigid cystoscope, an OCT processing system, an optical photographic system, a cold light source host and an operating keyboard. The OCT rigid cystoscope is respectively in connection fit with the OCT processing system, the optical photographic system and the cold light source host. The OCT rigid cystoscope comprises a sheath and a cystoscope body. A telescopic OCT probe module is inlaid at the tip of the cystoscope body. An OCT component capable of circling around an axis of the OCT probe module is arranged inside the OCT probe module. The OCT rigid cystoscopy system has the advantages that the OCT probe module arranged at the tip of the rigid cystoscope can be linearly driven out to operate by an internal first miniature motor, operational simplicity of the OCT probe module is improved, the OCT probe module is more durable and less prone to damage and has prolonged service life, the OCT component can be used for 360-degree omnibearing OCT to obtain high-resolution real-time images, and effective basis for accurate diagnosis is provided for doctors.

The invention relates to a bendable endoscope for a bladder. The bendable endoscope for the bladder comprises a light source, a light transmitting optical fiber, an imaging optical fiber, an image transmitting optical fiber and an image display device. The imaging optical fiber and the light transmitting optical fiber are both arranged in sheaths. The sheaths comprise the sheath I and the sheath II which are hinged to each other. Two sliding grooves which are arranged axially are symmetrically formed in the outer wall of the sheath I. The bendable endoscope further comprises a swinging driving device. The swinging driving device is used for controlling the sheath II 4 to swing at the far end. According to the bendable endoscope for the bladder, the head end of the bendable endoscope can swing to different degrees according to needs, the bendable endoscope is also suitable for the diagnosis of any part in the bladder, no blind area exists in the vision in the bladder, the defect of an existing cystoscope is overcome, and the rate of definite diagnoses of the cystoscope is remarkably improved; due to the fact that the adjusting method of the bendable endoscope is according to pure mechanical principles, energy can also be saved, the complexity of the bendable endoscope is lowered, and the practicability is improved.

The invention relates to a bendable and stretchable bladder endoscope which comprises a light source, a light transmission optical fiber, an imaging optical fiber, an image transmission optical fiber and an image display device. The imaging optical fiber and the light transmission optical fiber are both arranged inside sheath tubes, the sheath tubes comprise the sheath tube I and the sheath tube II which are mutually hinged, and two sliding chutes which are formed in the axial direction are symmetrically formed in the outer wall of the sheath tube I. The endoscope further comprises a swing driving device, and the swing driving device is used for controlling swing of the sheath tube II 4 in a far-end mode. The head of the bladder endoscope can swing in varying degrees according to needs, the bladder endoscope can be suitable for diagnosing any part in a bladder, a non-blind area view can be achieved in the bladder, the defects of an existing bladder endoscope are overcome, the definite diagnosis rate of the bladder endoscope is obviously improved, the adjusting manner is a pure mechanical principle adjusting manner, energy can also be saved, the complexity of the device is lowered, and feasibility is increased.

The invention discloses a cystoscope for medical use. The cystoscope includes a cystoscope body, a storage box and a supporting ring; the storage box consists of a half box body which is transverselysymmetric, and a steel wire rope is arranged between the half box body and the cystoscope body; a through hole is formed in the side wall of the half box body and internally provided with a fixing plate, a piston cylinder and an airbag, and multiple auxiliary holes are formed in the fixing plate at equal intervals; a piston plate is slidingly connected in the piston cylinder, and the piston cylinder is also provided with an air pipe connected with the airbag; a sliding board is also slidingly connected in the through hole, and a first spring is arranged between the sliding board and the fixingplate; the half box body is also provided with a guiding groove, and the upper and lower portions of the interior of the guiding groove are both slidingly connected with two linkage arms; a side plate is rotatably connected to the bottom of the half box body; a ring groove used for enabling the linkage arms to slide is formed in the outer wall of the supporting ring; a positioning mechanism usedfor controlling the linkage arms to rotate or stop rotating is arranged between the two linkage arms on the upper portion or the two linkage arms on the lower portion. The cystoscope mainly solves theproblems that current transportation of cystoscopes is inconvenient and cystoscope bodies can be shaken after being held for a long time.

The invention discloses a removal device for removing an ureteral stent. The removal device includes an outer sheath tube, and also includes an obturator, wherein the obturator is inserted in the outer sheath tube, the obturator and the outer sheath tube are inserted into a bladder from the urethra after the obturator and the outer sheath tube are installed together, and the removal device also includes an inner core tube and a removal machine; the inner core tube and the removal machine are inserted into the outer sheath tube after joint installation is performed, a pull buckle is arranged atthe tail end of the inner core tube, one end of a pull wire is fixed to the front end of the inner core tube, and the other end of the pull wire is fixed to the pull buckle; the removal machine includes a silk body, the front end of the silk body passes through the inner core tube, and a cover body for grabbing the ureteral stent is installed at the front end of the silk body; and a control handle which is installed at the tail end of the inner core tube in a matched mode is installed at the tail end of the silk body. Through the removal device, the ureteral stent can be pulled out of the body without the visual assistance of a cystoscope, removal operation is not limited to operation in an operating room, and has little impact on the urethra during the removal operation; and the removaldevice has simple operation and use, and can be operated by a doctor or a nurse in clinic.

The invention relates to a disposable multifunctional electronic cystoscope, which comprises a cystoscope body, the cystoscope body is of a pipe barrel structure, a sealed waterproof wiring pipe and an instrument channel are arranged in the cystoscope body in a penetrating mode, an instrument channel opening located in the front end face of the cystoscope body is formed in the front end of the instrument channel, and a camera, a water inlet and an illuminating lamp are further arranged on the front end face of the cystoscope body; a water outlet valve is communicated with the pipe barrel structure of the endoscope body, a water outlet channel is formed by the water outlet valve and the space, except the sealed waterproof wiring pipe, the instrument channel and the water inlet channel, in the water outlet valve, and a plurality of water outlet holes are formed in the outer wall of the pipe barrel structure at the front end of the endoscope body. According to the cystoscope, the problems of continuous irrigation and flushing and continuous drainage of flushing fluid in examination and treatment are solved, complete continuous flushing and continuous drainage can be formed, all attention of doctors can be focused on examination and treatment, at least half of examination and treatment time can be saved, and the safety is greatly improved.

The invention provides filling equipment for cystoscope and a cystoscope system. The filling equipment comprises a gas delivery channel and a pressure detection part; one end of the gas delivery channel is connected with a gas source, and the other end of the gas delivery channel is connected with the cystoscope so as to inject gas comping from the gas source into the cystoscope; the pressure detection part is arranged on the gas delivery channel so as to detect a pressure value of the gas injected into the cystoscope in real time. According to the technical scheme, the problem that cystoscope in the prior art cannot monitor pressure of the gas injected into the cystoscope in real time is solved.

The invention relates to a ureteral stent puller. The ureteral stent puller is provided with a rubber pipe and a solid wire, wherein the rubber pipe is 30cm in length and has a diameter of NO.Fr6; the tail end of the rubber pipe is connected with a water injection pipe; the head end of the rubber pipe is provided with a first small hole and second small hole; the first small hole is positioned in the end part of the rubber pipe; the second small hole is positioned in the side wall of the rubber pipe, and the distance between the second small hole and the first small hole is 1cm; the solid wire enters into the rubber pipe through the second small hole and passes through the second small hole; the solid wire is a nylon wire. The ureteral stent puller has the advantages that the rubber pipe is adopted and the solid wire is an external member; compared with a cystoscope pulling method, a cystoscope is not needed, anesthesia is not needed, and the whole price of the external member is low; due to non-sticky property and good flexibility of the solid wire, the solid wire is in a natural state in a surgery process, so that a ureteral stent can be pulled out conveniently.