74 results about "URETEROSCOPE" patented technology

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 device for extracting objects from the body, such as urinary stones, using a low pressure inflatable toroidal balloon that serves to engulf the object during extraction while dilating and protecting the passageway. The balloon loads onto an ureteroscope prior to insertion, rather than through the ureteroscope as do existing balloons. The toroidal balloon is a simple and unique device that may be applied external to the extracting telescope and does not interfere with existing methods for stone manipulation such as laser lithotripsy, irrigation and basket extraction in the case of urinary stone manipulation.

A method for capturing an object in a cavity in a patient is described. The method includes advancing a ureteroscope into the cavity containing the object. A basket is advanced through a working channel of the ureteroscope. The basket is opened within the cavity and is positioned so as to enclose the object. Then, two actions are performed simultaneously. The basket is collapsed while simultaneously the basket tool is advanced forward so that the object remains within the basket, ideally near the center of the basket, as the basket closes around the object. Once the object is captured, the basket is retracted to remove the object out of the cavity. Further, this process may be automated by having the method carried out by robotic arms acting in tandem, with one or more robotic arms advancing the basket tool or ureteroscope, and another robotic arm collapsing the basket.

Disclosed is a hub for a transluminal sheath. The hub provides a handle for grasping the sheath, provides connections for fluid inlet and outlet lines, and provides for attaching mechanisms between the sheath and a dilator. The hub can be used on a non-radially expandable sheath, or it can be used on a sheath having a radially expandable configuration. In an exemplary application, the hub is fitted to a sheath, which provides access for a diagnostic or therapeutic procedure such as ureteroscopy or stone removal.

The invention relates to a combined type soft or hard endoscope. The endoscope comprises a catheter part, a steering handle for controlling the catheter to bend and a pipeline connector, wherein the catheter part comprises an outer catheter and an inner catheter, and the outer catheter is sleeved outside the inner catheter. The combined type soft or hard endoscope is characterized in that: the steering handle comprises a handle sleeve and a handle body cover; the handle sleeve is sleeved outside the handle body cover; an axial guide rail and a sliding block are arranged between the handle sleeve and the handle body cover; the guide rail and the sliding block are respectively fixed on the handle sleeve or the handle body cover; the outer catheter is fixedly connected with the handle sleeve; the inner catheter passes through a through hole in the handle sleeve, and is connected with an interface of the pipeline connector and is fixed to the interface; the pipeline connector is positioned in the handle body cover and is fixedly connected with the handle body cover; and other interfaces of the pipeline connector are respectively connected with each channel opening on the handle body cover. The combined type soft or hard endoscope has the characteristics of simple structure, convenient operation and flexible steering, and can be used for tubal endoscopes, ureteroscopes and endoscopes in other departments.

A ureteral access sheath comprises a sheath assembly having a main lumen and one or more secondary lumens. The sheath assembly can be configured with medical devices in both lumens, for example, a ureteroscope in the main working channel, and a guidewire, stone basket, grasper, laser fiber, or other surgical instrument in the secondary working channel. Or the sheath assembly can be configured with a medical device in one channel and the other lumen coupled to an irrigation means, such that irrigation of the surgical field can be efficiently accomplished even though the main working channel is substantially completely occupied by, e.g., a ureteroscope. Or the sheath assembly can be configured for irrigation through one lumen and aspiration through the other lumen, thereby creating a turbulent flow which washes the surgical field to facilitate removal of particles and debris.

The invention discloses a mini-incision endoscope for diagnosis and treatment of upper urinary tract diseases, which is a novel ureter endoscope comprising an end flexible base 1, an operating grip 4, an operational key 3 for controlling the bending motion of the base end, since the main portion of the base of the end flexible ureter endoscope is of hard structure, whose end portion can be bent upwards or downwards by 180 degrees, the viewing field blind area and operation blind area of the hard ureter endoscope can be eliminated.

The invention relates to a surgical instrument. A ureter nephroscope with a bendable head end comprises an operating body which is connected with a nephroscope tube. The operating body comprises a nephroscope body, an assembling and disassembling mechanism and a retractable mechanism all of which are sequentially connected. The nephroscope tube comprises an inserting part, a bending part and a head end part all of which are sequentially connected. The inserting part is connected with the nephroscope body, the nephroscope tube is sleeved with a sheathing tube, the length of the sheathing tube is smaller than that of the nephroscope tube, and the retractable mechanism is located at one end of the sheathing tube and is connected with the nephroscope body through the assembling and disassembling mechanism. The ureter nephroscope with the bendable head end integrates the functions of a hard ureter nephroscope and a soft ureter nephroscope, and can be fast mounted and dismounted so that all components can be disinfected conveniently, the ureter nephroscope can be inserted into the ureter easily and can be inserted into kidney calices, especially into the lower kidney calices smoothly, and the situation inside the lower kidney calices can be well observed. The technical problems that an existing ureterocope in the prior art is inserted into the ureter difficultly, the situation inside the lower kidney calices cannot be well observed, the treatment cannot be well carried out, and the components cannot be fast mounted, dismounted or disinfected are solved.

The invention relates to a surgical instrument, in particular to an ureteroscope which comprises a lens tube. The lens tube is connected with a lens tube main body, the lens tube comprises an end part, a bending part and an inserting part which are connected with one another in sequence, one end of the inserting part is connected with the lens tube main body, the inserting part is a nonabrasive lens tube, a bending operation part which controls the bending part is arranged on the lens tube main body, a first channel is arranged in the lens tube, a second channel is arranged in the lens tube main body, the first channel is communicated with the second channel to form a multipurpose channel, and a detachable support rod or a detachable surgical instrument is arranged in the multipurpose channel. The ureteroscope is simple in structure, has both advantages of a soft lens tube and a hard lens tube, can bend to adapt to the structure of a kidney, is convenient to use and high in safety, and greatly relieves sufferings of a patient. In addition, the ureteroscope solves the technical problems that the ureteroscope in the prior art is either a soft lens tube or a hard lens tube and operation is inflexible.

The invention discloses a minimally-invasive interventional operation robot for the urinary surgery. A flexible ureteroscope lifting module comprises a lifting table and a linear module fixing rack, the lifting table can adjust the height of a flexible ureteroscope and a sickbed, and the fixing rack is connected with the lifting table and a linear module; a flexible ureteroscope pushing module comprises a pushing mechanism and a flexible ureteroscope supporting mechanism, and can be used for pushing the flexile ureteroscope, and the supporting mechanism is used for providing a flexible part supporting force for the flexible ureteroscope; a flexible ureteroscope rotating module comprises a rotating shaft and a gear and drives the rotating shaft to rotate through rotation of a motor; a flexible ureteroscope bending module comprises flexible ureteroscope fixing support, a flexible ureteroscope carrying platform and a U-type knob which is matched with a flexible ureteroscope bending knob,and the flexible ureteroscope bending knob rotates along with rotation of the U-type knob. The minimally-invasive interventional operation robot can help a doctor to operate the flexible ureteroscopecorrespondingly during the surgery, relieve fatigue caused by the long-time surgery of the doctor, increase the speed of the surgery, and collect force data of flexible ureteroscope motion during thesurgery.

The invention discloses a combined rigid ureteroscope which comprises a rigid ureteroscope body and a tubular sheath which is sheathed outside a tubular part of the ureteroscope body, wherein a starting end of the sheath is tightly attached to the tubular part of the ureteroscope body; the rear end of the sheath is equipped with a locking mechanism; a locking part is arranged between the tubular part and an operation part of the ureteroscope body; and the locking mechanism is matched with the locking part so as to lock or loosen the rigid ureteroscope body and the tubular sheath. By adopting the combined rigid ureteroscope,, the locking mechanism between the ureteroscope body and the sheath can be loosened during operations for examination, diagnosis and treatment of ureter and kidney, the rigid ureteroscope body and the sheath can be separated, and the sheath is left in the ureter and utilized as a channel through which broken stones can be repeatedly taken out for multiple times or the ureteroscope body separately gets in and out of the ureter as well as an operation channel of a flexible ureteroscope, thereby saving the operation procedures, shortening the operation time and improving the operation safety; and moreover, in some operation procedures, the rigid ureteroscope can be used instead to implement projects that must be implemented by the flexible ureteroscope before,thereby avoiding the problems of difficult operation and easy damage of the flexible ureteroscope, and actually realizing safe, effective and low-cost clinical treatment.

The present invention discloses a flexible digital ureteroscope that is at least partially disposable. The ureteroscope comprises a single-use catheter and a handle. The catheter comprises a distal end, a bend portion, and a proximal portion. The distal end has a rigid or semi-rigid shell that houses a set of micro lenses, an image sensor microchip, and a plurality of LED light sources. A working channel extends along the entire catheter and is coupled to a working channel port on the handle to receive various medical devices and irrigation lines during an endoscopic procedure. In addition, the catheter includes one or more steering wires to control the distal end to bend towards a desired direction. The rigid or semi-rigid shell of the distal end is made of a mix of polymer composite material with graphene nano-filler for enhancing thermal dissipation. The handle may be a single-use handle or a reusable handle. In case the handle is a reusable handle, it includes a battery module and a wireless communication module for communicating with a host machine wirelessly. In case the handle is a single-use handle, to reduce cost, the handle does not include a battery module and / or a wireless communication module. Rather, the single-use handle includes a host interface for receiving power from the host machine and transmits image data to the host machine.

The invention belongs to the technical field of medical apparatus, particularly relates to a ligation apparatus which is suitable for communicating hydrocele or congenital indirect inguinal hernia. The ligation apparatus comprises a puncture needle, a needle sheath and a lead needle, wherein a needle sheath cavity is provided with a hollow pipeline which is in clearance and loop matching with the puncture needle, and the length of the needle sheath is smaller than that of the puncture needle; the lead needle is in clearance and loop matching with the hollow pipeline of the needle sheath cavity, the length of the lead needle is larger than that of the needle sheath, the outer diameter of the lead needle is smaller than that of the puncture needle, a line inlet groove and a line hooking groove are arranged at the front end part of the lead needle, wherein the groove mouth of the line inlet groove faces forwards, the groove mouth of the line hooking groove faces backwards, and the front end head of the lead needle is in a blunt head structure. The ligation apparatus overcomes the structural defects of a processus vaginalis high ligation apparatus carried out under the monitoring of an ureteroscope, has simple structure, simple and convenient operation and small wound formed in the sewing process, is free of sewing and can be applied to clinical operation.

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.

A method for creating a tract in retrograde fashion for nephrostomy tube creation comprising the steps of providing a puncture wire having a tissue penetrating tip shielded in a sheath, inserting the puncture wire and sheath through a channel in an ureteroscope, advancing the puncture wire from the sheath while visualizing under direct vision a position of the puncture wire, advancing the puncture wire through a selected calyx, and inserting antegrade a coaxial catheter over the puncture wire.

A medical instrument in particular a uretero-renoscope has a proximal head part and an elongate thin shaft for introduction into a small diameter elongate hollow organ. An instrument channel and at least one further channel is disposed within the shaft. The instrument channel is arranged centrally in the shaft.

The invention discloses a ureteroscope, comprising at least two parts of lenses and a lens body, wherein each part of the lenses are connected in sequence; the tail end of the rear part lens is connected with the lens body; communicated tube cavities are arranged in each part of the lenses and the lens body; the external wall of the front part lens is provided with a groove; a tube wall of the rear part lens is provided with a drainage channel; and the groove and the drainage channel are communicated with each other. By additionally arranged a water drainage channel, the invention can accelerate the water drainage speed during an operation, forms continuous water cycle, increases the water drainage amount during the operation on the premise of not influencing the execution in the operation, thus not only can keeping clear view during the operation process and improving operation efficiency, but also reducing water pressure in a kidney and an ureter, preventing occurrence of hyperpyrexia bacteremia after the operation and avoiding rise of the water pressure in a bladder.

The invention discloses a minimally-invasive interventional operation robot for the urinary surgery. A flexible ureteroscope lifting module comprises a lifting table and a linear module fixing rack, the lifting table can adjust the height of a flexible ureteroscope and a sickbed, and the fixing rack is connected with the lifting table and a linear module; a flexible ureteroscope pushing module comprises a pushing mechanism and a flexible ureteroscope supporting mechanism, and can be used for pushing the flexile ureteroscope, and the supporting mechanism is used for providing a flexible part supporting force for the flexible ureteroscope; a flexible ureteroscope rotating module comprises a rotating shaft and a gear and drives the rotating shaft to rotate through rotation of a motor; a flexible ureteroscope bending module comprises flexible ureteroscope fixing support, a flexible ureteroscope carrying platform and a U-type knob which is matched with a flexible ureteroscope bending knob,and the flexible ureteroscope bending knob rotates along with rotation of the U-type knob. The minimally-invasive interventional operation robot can help a doctor to operate the flexible ureteroscopecorrespondingly during the surgery, relieve fatigue caused by the long-time surgery of the doctor, increase the speed of the surgery, and collect force data of flexible ureteroscope motion during thesurgery.

The invention relates to a disposable specimen taking-out device under a cystoscope, a ureteroscope and a nephroscope. The specimen taking-out device is composed of an inner sleeve, a push-pull rod, a handle, a metal ring and a filtering object taking-out bag. The length of the inner sleeve is greater than that of a cystscope sheath, the length of the push-pull rod is greater than that of the inner sleeve, one end of the push-pull rod is provided with the handle, the other end is provided with the metal ring, the metal ring is sleeved by the filtering object taking-out bag, the filtering object taking-out bag only can filter liquids and cannot filter tumor cells and tissues, the metal ring is elastic, the push-pull rod, the metal ring and the filtering object taking-out bag can be placed in the inner sleeve, and when the metal ring is pushed out from the inner sleeve, the metal ring is expanded so as to open the bag mouth of the filtering object taking-out bag. The disposable specimen taking-out device provided by the invention has the following advantages: compared to the prior art, the disposable specimen taking-out device is reasonable in structural design, can effectively take operation specimens completely out of bladders, ureters or renal pelvis and renal calyces, does not cause avulsion when the specimens are taken out, is more convenient and rapid to take the specimens out, takes out the specimens completely without residuals, and improves the efficiency and the treatment effect of an operation.

A ureteroscope comprising a stem receiving an optics, a light guide and a duct is characterized in that the stem comprises at least along one segment of its length at least one substantially longitudinal indentation.

The invention relates to a multipurpose ureteroscope sacculus guidewire and a using method thereof. The multipurpose ureteroscope sacculus guidewire comprises a guidewire sheath (3), a guidewire core (1) penetratingly arranged in the guidewire sheath (3) and a Y-shaped connector (4) fixedly connected with one end of the guidewire sheath, and is characterized in that an expandable sacculus (2) is arranged at the far end of the guidewire sheath, and an inner cavity of the expandable sacculus (2) and branch ducts of the Y-shaped connector form liquid perfusion passages commonly.

The invention relates to a micro invasion endoscope of upper urinary tract disease diagnosis and treatment, which is a novel ureter endoscope formed by a terminal 2 of the bendable endoscope body, a rigid endoscope body 1 and operation keys 4 and 5 at the back of an operation handle 3. Most of the endoscope body is rigid structure, so the terminal of the endoscope is the same with the terminal of the traditional and soft ureter endoscope, which can be bended by 180 DEG C towards two opposite direction. The direction and angle of bending movement can be controlled by the operation key 4 at the back of the handle and operated conveniently. The invention has the advantages of the traditional ureter endoscope and soft ureter endoscope, is operated conveniently, no view and operation blind areas and the view is much clearer under the endoscope, which result in large improvement in the upper urinary tract disease diagnosis and treatment. While the operation key 5 can control relative sliding of the bendable endoscope body terminal and rigid endoscope body, so to reach the rigid structure of whole endoscope body during the endoscope entry process and protect the terminal of the soft endoscope body.

A simulation model for ureteroscopic surgery simulation, comprising: simulated ureter; simulated renal pelvis communicated with the simulated ureter; simulated renal calyces communicated with the simulated renal pelvis; the simulated renal calyx, simulated renal pelvis and simulated ureter include An inner tube and an outer tube surrounding the inner tube, with a cavity between the inner tube and the outer tube, the inner tube is used to simulate the inner wall mucosa of the human calyx, renal pelvis and ureter, and the outer tube is used to simulate the human body The outer walls of the renal calyx, renal pelvis, and ureter, the cavity used to hold fluid and keep it sealed during surgical training. Using this solution, during the operation simulation process, the cavity between the inner and outer tubes is filled with liquid to simulate blood. When the inner tube ruptures and the liquid flows out, the instructor can remind the students that the operation is wrong, and perforation and bleeding occur. complication. The ureter operation training model of the technical proposal can be used to simulate bleeding and perforation complications in the operation, and provide students with a realistic operation operation scene.

The invention provides an ureteroscope with a temperature sensor and belongs to the field of medical apparatuses and instruments. The ureteroscope comprises a mirror of a handheld portion and a mirrorbody connected to the mirror, wherein a temperature sensor probe is arranged at the front end of the mirror body and is connected with a wiring post on the mirror through a wire, and the wiring postis connected with a temperature sensor processing unit through a connecting wire. The temperature sensor processing unit is connected with a displayer capable of displaying temperature at the probe inreal time. The temperature sensor processing unit is also connected with a relay, and the relay is serially connected between a holmium laser mainframe and a pedal switch. When the local temperaturein the ureter exceeds a set value in the laser lithotripsy process, the relay is disconnected, even if an operator still treads the pedal switch at the moment, holmium laser also does not work, the relay is turned on when the local temperature in the ureter is reduced to a normal range, and holmium laser can continue to work by treading the pedal switch. Therefore, complications such as postoperative ureterostenosis caused by local thermal injuries of the ureter can be prevented in the laser lithotripsy process.

This document discusses, among other things, a ureteroscope having a notch or other structure at a distal end configured to engage a guide wire and facilitate cannulation.

The invention relates to the technical field of a medical instrument, particularly to ureteroscope with a flexible end and a retractable sheath, which is used for diagnosis and treatment of urinary system diseases. The ureteroscope comprises the retractable sheath (1) and an endoscope (2), wherein the retractable sheath (1) is a columnar hollow conduit provided with a retractable sheath handle (1.1) at the end above, a bushing port (1.2) matched with two limiting balls (2.3) on the endoscope (2) is arranged inside the retractable sheath handle, and the endoscope (2) is constituted by an eyepiece (2.7), a focal length adjusting knob (2.6), a light guide bundle interface (2.5), a gyration radius adjusting switch (2.8), a lens deflection direction adjusting knob (2.9) and a lens (2.4). The ureteroscope has the advantages that both the gyration radius and the bending angle of a flexible section (2.11) at the end of the endoscope can be adjusted according to needs so as to realize safe and efficient diagnosis and therapeutic surgery on the urinary system diseases related to ureter, pelvis and kidney calyces.

The invention relates to a visible ureteroscope dilatation balloon and a use method thereof. A joint assembly is internally provided with a gas guiding passage, a hard catheter is detachably and fixedly clamped to one end of the joint assembly, one end of the hard catheter is communicated with the gas guiding passage, the other end of the hard catheter is communicated with a soft catheter, the soft catheter is provided with a balloon body, the head of the balloon body is provided with a soft guiding head, and a guiding wire penetrates through the soft catheter, the balloon body and the soft guiding head. According to the visible ureteroscope dilatation balloon and the use method thereof, through the arrangement of the hard catheter and the joint assembly detechably and fixedly clamped to the hard catheter, the hard catheter can be detached and inserted from the far end of a flexible ureteroscope, penetrates out of the near end and is fixedly clamped to the joint assembly, the dilatation balloon and the flexible ureteroscope are used together, and the situation is avoided that in the prior art, the ureteroscope is used for examination at first and then the dilatation balloon is usedfor dilatation, so that positioning is inaccurate, and perforation or rupture of ureters is caused.

The invention relates to a combined type soft or hard endoscope. The endoscope comprises a catheter part, a steering handle for controlling the catheter to bend and a pipeline connector, wherein the catheter part comprises an outer catheter and an inner catheter, and the outer catheter is sleeved outside the inner catheter. The combined type soft or hard endoscope is characterized in that: the steering handle comprises a handle sleeve and a handle body cover; the handle sleeve is sleeved outside the handle body cover; an axial guide rail and a sliding block are arranged between the handle sleeve and the handle body cover; the guide rail and the sliding block are respectively fixed on the handle sleeve or the handle body cover; the outer catheter is fixedly connected with the handle sleeve; the inner catheter passes through a through hole in the handle sleeve, and is connected with an interface of the pipeline connector and is fixed to the interface; the pipeline connector is positioned in the handle body cover and is fixedly connected with the handle body cover; and other interfaces of the pipeline connector are respectively connected with each channel opening on the handle body cover. The combined type soft or hard endoscope has the characteristics of simple structure, convenient operation and flexible steering, and can be used for tubal endoscopes, ureteroscopes and endoscopes in other departments.