65 results about "RESECTOSCOPE" patented technology

An insertable robot for minimally invasive surgery includes a tube array having a guide tube housed within a straightening tube. The guide tube includes a curved working end. The guide tube may be axially translated and rotated relative to the straightening tube such that the curved working end is constrained inside the straightening tube, causing the curved working end to achieve a smaller dimension. The tube array is inserted into a working channel on an endoscope, resectoscope or trocar. Once the tube array is inserted, the curved working end of the guide tube is translated forward beyond the distal end of the working channel, allowing the curved working end to return to its pre-formed shape. A surgical tool is inserted through the guide tube for an operation. The straightening tube allows the guide tube curved working end to be temporarily straightened during insertion and removal of the tube array.

The invention provides a uterine cavity resectoscope, and belongs to the technical field of resectoscopes. Comprising an endoscope, the outer wall of the endoscope is sleeved with an operator body, the outer wall of the operator body is slidably connected with an electrode connecting piece, the outer wall of the electrode connecting piece is rotatably connected with a pushing piece, the pushing piece is rotatably connected to the outer wall of the operator body, and the outer wall of the operator body is fixedly connected with a connecting block; the plugging assembly is used for assisting medical staff in inserting the outer sheath and the inner sheath into the uterine cavity of the patient, and the plugging assembly is connected with the electrode connecting piece, the connecting block, the outer sheath and the inner sheath. By arranging the plugging assembly, after the two semicircular pieces are closed to form the blunt end structure, the window holes in the ends, away from the connecting block, of the outer sheath and the inner sheath can be sealed, the situation that when medical staff control the outer sheath and the inner sheath to be inserted into the uterine cavity of the patient, the window holes in the ends of the outer sheath and the inner sheath injure the uterine cavity of the patient is avoided, and use of the medical staff is facilitated.

The invention belongs to the technical field of medical equipment, and particularly discloses plasma operation equipment and a using method thereof, and the plasma operation equipment comprises a host used for generating plasma; the control machine is connected with the host and is used for controlling the host to operate; the resectoscope equipment comprises an inner sheath, an outer sheath, an electrode and a cleaning device, the inner sheath is in a slender rod shape, and a limiting block is connected to the inner sheath in a sliding and sleeving mode. Compared with traditional plasma operation equipment, the mode that the traditional plasma operation equipment depends on a pedal to control cutting parameters is abandoned, and the cutting time, the cutting interval and the cutting current parameters of the main machine are set, regulated and controlled innovatively through the independent control machine; therefore, the medical staff can accurately input parameters on the control machine before the operation according to the operation site, the tissue type and the individual difference of patients, the pedal does not need to be treaded frequently during the operation, the operation steps are effectively reduced, and the probability of operation errors is reduced.

High-frequency electrodes for handheld devices are primarily used in urology for electrosurgical procedures in the bladder, prostate, and urethra. It is known that a large active electrode area is advantageous. However, the size of the area is limited by the available space. Furthermore, higher energy is required to ignite the plasma in large electrodes. Increased energy, however, negatively impacts the temperature input into the irrigation fluid, which can be detrimental to the surrounding tissue. The invention provides a high-frequency electrode (18), an electrode instrument (16), and a resectoscope (10) in which the plasma can be more easily localized at the electrode (18) while simultaneously reducing the energy required to ignite the plasma. This is achieved by giving the high-frequency electrode (18) for use in a surgical handheld device the shape of a toroid (21).

The present invention relates to a small-caliber bipolar plasma resectoscope, comprising an outer sheath, an inner sheath, and an electrode loop assembly. The electrode loop assembly is installed in the inner sheath and can move along the extension direction of the inner sheath. The electrode loop assembly comprises a linearly distributed positive electrode, an insulator, and a negative electrode, which are fixedly connected in sequence. The positive electrode comprises an extension section, a first bending section, and a second bending section. The extension direction of the first bending section forms a first angle with the horizontal plane. The extension direction of the second bending section forms a second angle with the horizontal plane. When energized, the positive electrode and the negative electrode form an electrical circuit with the physiological saline perfused in the electrode loop. While meeting normal electroresection conditions, the resectoscope increases the cutting and hemostasis efficiency of a simple linear electrode loop, achieves the goal of reducing the circumference of the resectoscope outer sheath to a minimum of Fr16, meets the needs of transurethral / cervical surgery for patients with a small urethral circumference or urethral / cervical stenosis, and reduces the problems of urethral / cervical injury and postoperative urethral / cervical stenosis caused by the excessive circumference of a conventional Fr26 resectoscope.

The invention relates to the technical field of hysteroscope resectoscopes, and discloses a hysteroscope resectoscope capable of preventing uterine perforation and a using method thereof.The hysteroscope resectoscope comprises a hysteroscope body and a plurality of ultrasonic ranging modules, a camera is arranged at the far end of the hysteroscope body and faces the resection position, the ultrasonic ranging modules are arranged at the far end, and the ultrasonic ranging modules are arranged at the far end of the hysteroscope body and face the resection position. The ultrasonic ranging modules face the electric resection part and are used for measuring the thickness of the uterus wall of the electric resection part. According to the hysteroscope, the ultrasonic ranging modules are arranged at the far end of the hysteroscope body to measure the thickness of the uterus wall of the electric resection part, the situation that when an electric resection operation of uterine submucosal myoma or endometrial polyp is carried out, due to the fact that the thickness of the uterus wall cannot be accurately evaluated, uterus perforation is accidentally caused is avoided, the safety and accuracy of the operation are improved, and the operation efficiency is improved. Complications are reduced, and the fertility of a patient is protected.

The invention discloses a resectoscope, and relates to the technical field of medical instruments, the resectoscope comprises an outer sheath, an adapter, an operator, an instrument and an endoscope main body connected with the outer sheath, the endoscope main body is connected with a light path system and an imaging system, and one end, far away from the outer sheath, of the endoscope main body is connected with a fixing assembly; the fixing assembly is used for fixing the endoscope body and the operator or fixing the endoscope body and the adapter, the operator is connected with an electric cutting ring, when the operator is connected to the endoscope body, the electric cutting ring penetrates through the outer sheath and the adapter to be connected with an instrument, and when the instrument is installed on the adapter, one end of the cold knife instrument penetrates through the outer sheath. When an instrument needs to be replaced, the operator is separated from the endoscope body through the fixing assembly, the instrument only needs to be installed on the adapter, the use end of the instrument sequentially penetrates through the adapter, the endoscope body and the outer sheath and is located in the human body, the sheath sleeve does not need to be frequently taken out from the human body to replace the instrument, and the situation that human tissue is touched by mistake is reduced.

The invention provides a prostate cyst excision device based on ultrasonic guidance, and belongs to the technical field of medical instruments. Comprising a mounting plate mounted on an operating bed, a first positioning plate is fixedly connected to the top of the operating bed, a second positioning plate is slidably connected to the top of the first positioning plate, and a third positioning plate is slidably connected to one side of the second positioning plate; the ultrasonic probe and the resectoscope are installed on the first positioning plate and the third positioning plate respectively. By arranging the positioning assembly, the efficiency of medical staff for placing the ultrasonic probe and the resectoscope into the body of a patient can be improved, the positioning assembly can open a wide operation channel in the rectum of the patient, the convenience of placing the ultrasonic probe into the body of the patient is improved, the operation view is wider, and the operation efficiency is improved. And the positioning assembly can clamp and fix the glans penis of the patient, so that the efficiency of placing the resectoscope into the urethra of the patient is further improved.

The present application relates to the technical field of electric resectoscope operation simulation training, and discloses a kind of training system of virtual simulation electric resectoscope operation, including preset model scene unit, simulation system configuration unit, simulation system guide prompt unit, simulation system operation unit and simulation system operation effect unit;Also disclosed is a kind of method of training system of virtual simulation electric resectoscope operation, comprising the following steps: S1, training scene and operation object construction;S2, preoperative preparation and simulation surgical instrument selection;S3, simulation surgical operation;S4, simulation training evaluation.The present application constructs training scene and corresponding operation object, and carries out electric resectoscope operation simulation training in virtual scene by guide prompt, and displays detailed simulation training performance evaluation table after training;Operator can carry out targeted training according to his weak point, and the training effect is better;And not subject to manpower, material resources and site restrictions, without the guidance of others, suitable for routine development.

A method and a system for navigation and / or control support for transurethral prostate resection, the method including: analyzing endoscopic images provided by a resectoscope and / or additional sensory data from within the resectoscope during TURP for one or more of several options, and at least one of: automatically disabling HF current to the resection electrode under several different outcomes of the analyzing, and outputting visual and / or acoustic information to an operator performing the TURP. The information including at least one of: a visual indication of an anatomical landmark inside and / or outside of the endoscopic image, a visual indication of a distance of the resection electrode to an anatomical landmark, and a visual or acoustic warning signal when the resection electrode comes closer than a predetermined allowable distance to one or more of the bladder neck, the verumontanum and the internal and / or external sphincter muscles.

The present application relates to the field of medical devices, and discloses a sheath structure, which comprises an inner sheath member and an outer sheath member, the inner sheath member is formed with an inner sheath channel and is provided with an inner sheath liquid inlet communicating with the inner sheath channel, the outer sheath member is formed with an outer sheath channel and the inner sheath member is arranged in the outer sheath channel, and the outer sheath member is provided with a liquid outlet communicating with the outer sheath channel; wherein a liquid outlet channel is formed between the outer periphery of the inner sheath member and the outer sheath channel, the liquid outlet communicates with the liquid outlet channel, the liquid outlet channel comprises a liquid inlet side for liquid inlet and a liquid outlet side at the liquid outlet, the gap of the liquid outlet channel at the liquid outlet side is larger than the gap of the liquid outlet channel at the liquid inlet side; and a resectoscope is also disclosed, which comprises an operating member and the sheath structure, and the operating member is sealingly connected with the sheath structure. The technical scheme of the present application aims to improve the liquid inlet and outlet convection effect of the resectoscope.

A method and TURP system and computer program product for imaging support for transurethral prostatectomy are provided. The method comprises: a) analyzing endoscopic images provided by the resectoscope during TURP and / or additional sensory data from within the resectoscope for performing one or more of several options and at least one of the following: b) automatically disabling HF current to the resection electrode under several different results of analyzing step a), c) outputting visual and / or auditory information to an operator performing the TURP, comprising at least one of i) a visual indication of an anatomical landmark inside and / or outside the endoscopic image, ii) a visual indication of a distance of the resection electrode to the anatomical landmark, and iii) a visual warning signal or an auditory warning signal when the resection electrode is closer to one or more of the bladder neck, vermifuga, and the internal sphincter and / or the external sphincter than a predetermined allowable distance.

The present invention discloses a plasma electroresection mirror, which comprises a sheath assembly, an operator, an electroresection loop assembly and an electronic endoscope; the front end of the operator is provided with the sheath assembly, the sheath assembly includes an outer sheath and an inner sheath, the outer sheath is sleeved outside the inner sheath, the electronic endoscope includes a lens tube and an operating handle, the lens tube is arranged in the inner sheath, the electroresection loop assembly includes an electrode head, a connecting rod and an electrode rod, the rear end of the electrode rod is connected with a slider, the slider is slidably mounted on the operator, the slider is connected with a finger hook, and the operator is provided with a distance sensor for sensing the position of the slider; the invention uses an electronic mirror and a plasma electroresection loop in combination. The electronic imaging system is mature, the cost is low, and the process is simple; the electronic endoscope has a large field of view angle and a wide visible range; the image sensor has a small size, which can reduce the overall outer diameter size.

The utility model discloses an electrotome of enhanced drainage function, it includes the sheath and the inner sheath, the sheath is set in the inner sheath outside and forms the flushing water channel between both, is equipped with the passageway in the inner sheath, the rear end lateral wall of sheath is fixed with the flush seat of flush water channel intercommunication, is equipped with a plurality of flush holes of flush water channel intercommunication on the front end lateral wall of sheath, the rear end of inner sheath is fixed with the fixed seat, flush seat seals the sleeve of the front end of fixed seat, the front end inner and outer lateral wall of inner sheath is synchronous and is outwardly convex and forms the boss of the close contact with sheath front end port, flush water channel is located between the boss and fixed seat, the rear end of boss is close to fixed seat, the front end of boss is away from fixed seat, the rear end of boss has part and is not outwardly convex and forms one or more than one and is spaced distribution and corresponds to the intercommunication notch of flush hole.

The present invention relates to the technical field of medical devices, and discloses a resectoscope handle, which includes a handle main body, a grip and a grip ring. The grip ring can be installed on the handle main body. The handle main body includes a tube column and a slider sleeved on the tube column. The grip can be installed on the tube column. When the grip ring is installed on the handle main body, the grip ring can drive the slider to slide. Also disclosed is a resectoscope, which includes an endoscope assembly, a sheath assembly, an electrode and the above-mentioned resectoscope handle. The sheath assembly and the endoscope assembly are respectively installed at both ends of the tube column, and one end of the electrode is connected to the slider. Also disclosed is a method for using a resectoscope, which includes: when the resectoscope is operated by a surgical robot, the grip and the grip ring are separated from the handle main body, and the actuator of the surgical robot drives the slider to slide along the axial direction of the tube column; when the resectoscope is operated by hand, both the grip and the grip ring are installed on the handle main body. The resectoscope handle can be used both for surgical robots and by hand, and the conversion process is simple and safe, which can greatly reduce the risk of surgery.

The utility model relates to a superfine-caliber bipolar plasma resectoscope and a combined suite. The utility model discloses a superfine-caliber bipolar plasma resectoscope which comprises an inner sheath, an electronic flexible lens, a plasma cutter and an operator, a connector is arranged at one end of the inner sheath and used for being connected with an external water source to inject water into the inner sheath. The electronic flexible lens and the plasma cutter are arranged in the inner sheath in a penetrating mode. According to the ultra-thin-caliber bipolar plasma resectoscope combination suite, the whole design thought is changed, a brand-new prostate bipolar plasma resectoscope structure which can keep the original function of the resectoscope unchanged and reduce the caliber is provided, an outer sheath is innovatively removed, a fistulization assembly is designed in a matched mode, and the structure is simple, convenient and practical. Meanwhile, the inner sheath serves as the outermost layer of the whole novel resectoscope structure, the electronic soft lens is used for replacing a traditional hard eyepiece, the diameter of the resectoscope is further reduced, and finally the diameter of the resectoscope stretching into the urethra can reach Fr6-Fr18.

The laser resectoscope comprises a sheath assembly, a laser hand part, a laser optical fiber and an electronic endoscope, the sheath assembly comprises an inner sheath and an outer sheath, the inner sheath is arranged in the outer sheath, the electronic endoscope comprises an endoscope tube, the laser optical fiber and the endoscope tube are arranged in the inner sheath in a penetrating mode, a light channel tube is arranged on the outer side of the laser optical fiber, and the laser hand part is arranged in the light channel tube. The head of the laser optical fiber protrudes out of the light channel pipe, a lens end is arranged at the head end of the lens pipe, an image sensor is installed in the lens end, and protective glass is installed on the outer side of the image sensor. The electronic endoscope is adopted for imaging, and an electronic camera system is mature, low in cost and simple in process; the field angle of the image sensor is large, and the visual range is wide; the head end of the image sensor is large, the rear end is a thin wire, and the overall outer diameter can be reduced.

The invention relates to a high-frequency electrode, an electrode instrument and a resectoscope for use in surgical hand instruments. High-frequency electrodes for hand instruments are used, in particular in urology, for electrosurgical work on the bladder, prostate and urethra. It is known that a large effective area of ​​the electrode is advantageous. However, the size of this area is limited by the available space. In addition, a higher energy is required to ignite the plasma of a large electrode. However, the higher energy has an adverse effect on the temperature input into the rinsing fluid, which can be detrimental to the surrounding tissue. The invention provides a high-frequency electrode (18), an electrode instrument (16) and a resectoscope (10), in which the plasma can be better locally concentrated on the electrode (18) while the energy required to ignite the plasma is reduced. This is achieved in that the high-frequency electrode (18) used in the surgical hand instrument has the shape of a ring body (21).

Transporter (1) of a resectoscope, comprising an optical guide tube (2) which can be attached longitudinally to the resectoscope and on which a sliding body (3) is mounted so as to be longitudinally displaceable, a coupling piece (4) arranged distally from the sliding body (3), which is penetrated by the optical guide tube (2) and is attached to it, a probe guide tube (5) which breaks through the sliding body (3) and which passes through the coupling piece (4), the probe guide tube (5) being detachably connected to the sliding body (3), wherein the probe guide tube (5) is adapted to receive a working tool (6) which can be guided and moved in the probe guide tube (5), characterized in that the probe guide tube (5) extends in a circular arc (9) between an inlet (7) into the sliding body (3) and an outlet (8) from the coupling piece (4) when the sliding body (3) is positioned most distally on the optics guide tube (2), wherein a line (10) running between the inlet (7) of the probe guide tube (5) into the sliding body (3) and its outlet (8) from the coupling piece (4) defines a bowstring which, starting from the outlet (8) of the probe guide tube (5) from the coupling piece (4), runs offset from a central axis of the optical guide tube (2) at an angle α in the range of 5° -15°.

The utility model relates to a specimen collecting device for transurethral electric resection, belongs to the technical field of medical instruments, and solves the technical problem that the existing specimen collecting device is easy to mix surgical specimens at different parts. The device comprises a waste liquid collecting container, a loader, a specimen collector and a sealing cover, wherein the loader is rotationally arranged in the waste liquid collecting container; a plurality of specimen collectors are arranged, and the plurality of specimen collectors are circumferentially arranged on the loader; the sealing cover is buckled at the opening of the waste liquid collecting container and is connected with the resectoscope sheath; and by rotating the loader, different specimen collectors can be switched to perform targeted collection on specimens at different parts. According to the utility model, different specimen collectors are switched by rotating the loader, so that specimens at different parts can be independently collected without replacing a new specimen collection device during multi-point focus tissue excision, and the confusion of surgical specimens at different parts is avoided.

An inner shaft for a working element of a resectoscope includes a distal end portion and at least three spacer elements which are arranged on an outer surface of the inner shaft. The spacer elements are distributed at different positions in the region of the distal end portion such that the inner shaft can be guided and / or placed within an outer shaft at a distance from the outer shaft in a predefined way at least in the distal end portion. A method produces the inner shaft and a resectoscope is provided with the inner shaft.

The utility model belongs to cup stand technical field discloses a resectoscope sheath cleaning effect inspection device, including endoscope and industrial computer, endoscope and industrial computer connection constitute visual inspection system, still including the positioning frame for positioning to the sheath, the positioning frame includes base, be equipped with vertical upward stand on the base, the top of stand is equipped with the transverse setting cross bar, be equipped with the locating block on the base, be equipped with the limiting slot for the bottom end portion of sheath position limiting on the locating block, and the cross bar is equipped with the pressing block for the bottom end portion of sheath press through the adjusting mechanism installation, and the pressing block is equipped with the end of endoscope insertion to the plug. The utility model is through endoscope and industrial computer and constitutes visual inspection system, and through setting specific positioning frame to position the sheath, to be able to detect the foreign matter in the sheath.

A method for controlling an electrosurgical instrument, in particular a resectoscope in transurethral resection, for cutting, vaporizing or thermally treating body tissues. The electrosurgical instrument has one or two instrument poles, and the electrosurgical instrument is controlled by an RF signal in order to control an electrical instrument current via one instrument pole or via the two instrument poles when the RF signal is activated. The method is prepared to identify a contact of one or both instrument poles with an electrically conductive solid.

The utility model relates to the technical field of surgical instruments, in particular to a human body urinary tract inner diameter measuring instrument which comprises a measuring catheter and a rotating sleeve, the measuring catheter is of a hollow tube body structure, and one end of the measuring catheter is provided with a positioning bag cavity used for being fixed in a bladder. An air hole is formed in the position, located in the positioning bag cavity, of the measuring catheter, and the air hole is communicated with the positioning bag cavity and the measuring catheter; the rotating sleeve is arranged on the outer side surface of the measuring catheter in a sleeving mode, and a displacement sensor is arranged at the end, close to the positioning bag cavity, of the rotating sleeve. And a rotating sleeve is arranged at the other end of the rotating casing pipe, and the rotating sleeve is rotationally connected with the rotating casing pipe. The novel resectoscope effectively solves the problems that the existing resectoscope cannot adapt to differences of different races, so that the existing resectoscope cannot be used due to urethrostenosis in domestic operations or the urethra is easily damaged when the existing resectoscope is used, and the like.

The present invention relates to the technical field of plasma resectoscopes, and proposes a continuous cutting plasma resectoscope, which provides hardware support for the precision of surgery, improves the surgical effect as much as possible, reduces the fatigue of surgeons, reduces patient trauma, and improves safety under the premise of ensuring surgical safety. The resectoscope comprises an electrosurgeon body, a telescopic part, and a rotating ring. The electrosurgeon body comprises an outer sheath and an electrosurgery tube. The outer sheath is sleeved on the electrosurgery tube, and an electrosurgery arc is provided on the electrosurgery tube. The telescopic part is fixedly connected to the electrosurgery tube, and a rotating ring is fixedly sleeved on the telescopic part. The rotating ring is rotatably sleeved on the outer sheath. The outer sheath is provided with a rotating cutting component for driving the telescopic part to swing left and right. The rotating ring is rotatably sleeved on the electrosurgery tube, and a moving rod is fixedly connected to the rotating ring. A moving groove for moving the moving rod is opened on the outer sheath, and an automatic electrosurgery component for driving the moving rod to move is provided on the outer sheath.

The invention discloses a plasma electric resection and laser enucleation integrated mirror assembly. The assembly comprises an operation cylinder; the front end of the operating cylinder is provided with an operating port, the rear end is provided with an operating handle, the operating cylinder is hollow, and the inner wall is fixedly connected with a driving gear; the front end of the operation hole is provided with a switching groove in sliding connection with a switching handle. The lower end of the switching handle is provided with a switching disc rotationally connected with the inner wall of the operating handle; extension holes are symmetrically formed in the two sides of the switching disc and rotationally connected with the rotary drum, and limiting keys are arranged on one sides of the extension holes. The front end of the drum is provided with a planetary gear meshing driving gear, and the inner wall is provided with extending threads; the switching disc is driven to rotate through the switching handle on the operation handle, and function switching of the plasma resectoscope and the laser optical fiber sleeve can be rapidly completed.

The invention relates to a surgical shaft instrument (10) with an inner shaft (14) that can be inserted into and coupled to an outer shaft (12), wherein the inner shaft (14) is designed and intended to receive a tool (16) projecting distally from the inner shaft (14), and with a housing arranged on the outer shaft (12) and a handle mechanism (18) for actuating the tool (16), in particular an instrument designed as a resectoscope. To enable coupling of the inner shaft (14) with the outer shaft (12) or of the tool (16) with the inner shaft (14) in any rotational orientation, the invention provides that the inner shaft (14) or the tool (16) has a conical leading-edge section (20) and an annular locking groove (22) adjoining it proximally, and that the outer shaft (12) or the tool (16) has a housing arranged on the outer shaft (12) and a handle mechanism (18) for actuating the tool (16), in particular an instrument designed as a resectoscope.a locking element (24) is arranged on the inner shaft (14), which extends radially in the direction of the locking groove (22) and circumferentially over no more than half the circumference of the locking groove (22).

The present invention relates to the technical field of medical devices, and discloses an independently rotatable dual-operation channel resectoscope, comprising an outer operating sheath, a water-dividing sheath, an inner operating sheath and an endoscope, wherein the outer operating sheath comprises an outer sheath and a water-sealing portion, a sheath-penetrating operating channel is arranged inside the outer sheath, the inner operating sheath comprises a supporting portion and an inner operating channel, a fixing groove and a sheath-outer-scope channel are respectively arranged on the front and rear sides of the supporting portion, an inner sheath section of the inner operating channel and a front end of the fixing groove are both arranged in the sheath body, and the fixing groove is located on the outside of the inner operating channel; the sheath-penetrating operating channel is built into the outer operating sheath, and under the premise of meeting the independent rotation operation of the dual operating channels, the outer surface of the outer operating sheath is ensured to be smooth, thereby avoiding damage to the inserted cavity; the endoscope body passes through the fixing groove of the inner operating sheath and forms an assembled closed channel with the water-dividing sheath, while maintaining the stability of the scope body, the tube diameter of the inner operating sheath can be reduced, which helps to maintain a small tube diameter of the instrument as a whole and reduces the difficulty of inserting into the cavity.