76 results about "Resectoscopes" patented technology

The invention discloses an intravascular thrombus and embolus resectoscope. The technique problem to be solved is that while thrombus and embolus are taken out, the distal end of a blood vessel cavity is protected. The intravascular thrombus and embolus resectoscope is provided with a thrombus resectoscope. The thrombus resectoscope comprises a basket with netting on top which shows shrinkage or releasing state and is arranged on the distal end of the thrombus resectoscope. A guide bar is connected with the basket with netting at the same axis; the distal end of the guide bar is connected with a soft guide wire head; when the basket with netting on top shows shrinkage or releasing state, the whole thrombus resectoscope is arranged in a delivery pipeline which is arranged in a recovery pipeline and can extends towards the distal end along the recovery pipeline. Compared with the existing technique, the blood stream of the blood vessel can continuously flow in the process of the capturing, winding, and extraction of the thrombus; the invention does not interface the blood supplying of the normal brain issue and protects the distal end of the cavity of the blood vessel; all gore or thrombus chips generated from the extraction process of the thrombus and embolus can be taken out.

A urological resectoscope having an axially extending shaft tube, the proximal end thereof being fixed to a main body. A sliding body is proximally positioned in relation to the main body, and can slide in a parallel manner in relation to the axis thereof. The sliding body includes a receiver, a fixing device and a contacting device. An electrode that can be subjected to a high frequency, including a rigid electrode carrier having one external, insulated conductive wire, can be positioned in the resectoscope such that it can axially slide beyond the distal end of the shaft tube. In the assembly position, the electrode carrier extends through the shaft tube and the main body into the receiver, and can be fixed by the fixing device and contacted by the contacting device. The fixing device is proximally arranged in relation to the contacting device on the sliding body.

The invention relates to a medical gasification resectoscope for inspecting and electric-cutting in urinary system. The opened operation of the traditional urinary system has the defects of large cut and damnifies, a plurality of blooding during operation and stimulated symptoms, long pathogenesis and enormous pains after the operation. The invention provides the gasification resectoscope, which comprises a main body, a sheath, an endotheca capable for inserting into the sheath and an inserting piece capable of inserting into the endotheca. The invention has the advantages of unnecessary of operating, small pain, light blooding, quick for recovery and reliable effects, which enables the operation safer, more precious and thorough, thus largely deducing the operation time, releasing the pain of the patients and shortening the curing time; besides, the invention is capable of being sterilized with high temperature and pressure and features uneasy for rusting; in addition, the physiological saline and excision enter and exit through different cannuls, thus enabling the cutting scope easy for control and has simple operation and clear version.

The present invention provides a novel and most useful working tool for a resectoscope, adapted to side-to-side resection of biological tissue using predetermined lateral movement. Said resectoscope is adapted to either cold or hot resection and is either flexible or rigid. The present invention also provides for a suitable cutting member assembly and to a method useful for lateral resection.

An electrode assembly is provided having an active power element and a current return element extending through a flexible multilumen tube to be electrically insulated from each other. The active power element extends through the multilumen tube and terminates in a “J-hook” and is connected to a conductive power contact through a constructed form fit. The return element extends through the multilumen tube and directly connects to a power return contact, thus eliminating any joints in the electrical path.

The invention discloses a multifunctional prostate operation mirror which comprises a mirror sheath and a resectoscope sleeved inside the mirror sheath. The resectoscope comprises an operation handle and an enucleation tool, wherein the operation handle comprises a main pipe and a slide block which is in sliding match with the outer surface of the main pipe; the enucleation tool is parallel to the main pipe and comprises a stem and an enucleation head; the enucleation head has an arc shovel-shaped structure of the cross section; the front end of the stem is fixedly connected with the tail end of the enucleation head; an electrode seat is arranged on the slide block; the tail end of the stem is inserted into the slide block and is fixedly matched with the slide block; the enucleation head is connected with the electrode seat by the stem; the stem is provided with axial through holes so as to form an optical fiber channel; and the slide block is provided with an optical fiber inlet which is communicated with the optical fiber channel. The mirror of the invention can be applied in both electrotomy and laser cutting operation. The mirror further comprises a crashing mirror which is matched with the mirror sheath. The mirror of the invention has the advantages of wide application, multifunction, convenient operation, efficiently promoted operation efficiency, relieved pain of patient, and decreased capability of secondarily hurting the patient.

A bipolar resectoscope has an inner shaft with an insulating insert at its distal end and an electrode transporter that can be arranged in the inner shaft. A first electrode is longitudinally moveable in the electrode transporter and has a proximal end that can be connected to a first connection of a high-frequency generator and a second electrode that can be connected at its proximal end to a second connection of the high-frequency generator. A circumferential electrically conductive electrode surface (29) is exposed transverse to the longitudinal axis (28) of the inner shaft (2) and is connected to the distal end (31) of the second electrode (5) on the inner side (30) of the insulating insert (8). The exposed electrode surface (29) of the insulating insert (8) is on the side (34) facing away from the longitudinal axis (33) of the insulating insert, and is insulated electrically toward the inside.

The invention relates to a surgical instrument system encompassing a morcellator with a hollow shaft on whose distal end a cutting blade is configured, as well as a gripping instrument with a shaft on whose distal end a tool consisting of at least two jaw members and on whose proximal end a handle consisting of at least two gripping members is configured to activate the tool, in such a way that the gripping instrument can be inserted into the hollow shaft of the morcellator so that it can slide in the longitudinal direction of the morcellator shaft. To ensure versatile application along with simple structure, it is proposed with the invention that the morcellator with the insertable gripping instrument can be inserted into a hollow shaft of an additional medical instrument, in particular a resectoscope, and that an additional irrigation and / or suction canal is configured between the shaft of the morcellator and the inside of the hollow shaft of the additional medical instrument.

A resectoscope having an electrode longitudinally displaceable in a stem. The electrode is electrically contacted at its proximal end 31, in a carriage that is fitted with a down-pointing finger grip, by a contacting system. The resectoscope further includes an hf-power cable 15 affixed to and suspended from the carriage. The contacting system is a separate reversal device affixable in the distal direction selectively by either of its two ends to the carriage. The particular distal end being fitted with a recess to receive the electrode and a cable post 13 is situated nearer one of the ends.

The present invention provides a dual action linear-rotational resectoscope comprising: (a) a resection loop and loop shaft which are raised to high electrical tension for either resection or cauterisation; (b) an endoscope tube electrically insulated from the loop shaft; (c) an insulating sheath comprising an inner and outer sheath between which fluid is free to flow, surrounding both the loop shaft and the endoscope tube; (d) a handle by which an operator controls both linear and rotational motion of the resector-loop such that the operator performs a resection by using either rotational motion of the resector-loop, linear motion of the resector-loop or any combination of the two; and, (e) a dual-action actuating mechanism useful for manoeuvring the resector-loop adjacent to a body portion to be treated in a sequence of rotational and linear maneuvers; the maneuvers are selected from a group consisting of linear motion followed by rotational motion, rotational motion followed by linear motion, only rotational motion and only linear motion; comprising a unified actuating module in communication with the effecter.

The invention discloses a hysteroscopic surgery simulator, which comprises an examining table, a female human model, a uterine cavity resectoscope, a rotation sensor, a displacement sensor, a force feedback touch simulator, data receiving processing equipment, a 3D (three-dimensional) model processing server, a 3D platform system server and display equipment. The hysteroscopic surgery simulator is characterized in that the uterine cavity resectoscope is put in the model; the lower part of the resectoscope body is provided with the displacement sensor and the rotation sensor; the tail end of the resectoscope body is provided with the force feedback touch simulator; the displacement sensor, the rotation sensor and the force feedback touch simulator are respectively and bi-directionally related with the data receiving processing equipment arranged in the examining table. Various 3D stereoscopic models of normal tissues and diseases of a virtual uterine cavity and 3D models for an operation process are stored in the 3D model processing server, and a hysteroscopy and surgery operation interface and entering and playback software are stored, and are output to the display equipment through the 3D platform system server to show vivid virtual 3D images; the hysteroscopic surgery simulator also has a vivid force feedback touch, so that the effects of hysteroscopy, and surgery skill training and assessment can be obviously improved.

The present invention provides a novel and most useful working tool for a resectoscope, adapted to side-to-side resection of biological tissue using predetermined lateral movement. Said resectoscope is adapted to either cold or hot resection and is either flexible or rigid. The present invention also provides for a suitable cutting member assembly and to a method useful for lateral resection.

An electrode assembly is provided having an active power element and a current return element extending through a flexible multilumen tube to be electrically insulated from each other. The active power element extends through the multilumen tube and terminates in a “J-hook” and is connected to a conductive power contact through a constructed form fit. The return element extends through the multilumen tube and directly connects to a power return contact, thus eliminating any joints in the electrical path.

The embodiment of the invention discloses a transurethral resectoscope operation robot system. The system comprises a display device, a man-machine interaction device, a resectoscope, a resectoscope clamping mechanism, a six-degree-of-freedom series mechanical arm and a work station serving as a control core, wherein the man-machine interaction device is used for acquiring operation instructions input by a user; the six-degree-of-freedom series mechanical arm is used for driving the resectoscope clamping mechanism to move forward and backward in the axial direction of the resectoscope, to rotate around the center axis of the resectoscope and to rotate around a preset fixed point on the center axis of the resectoscope. According to the technical scheme, an operation doctor can perform an operation at the far end through the transurethral resectoscope operation robot system, telesurgery and the accurate operation are realized, the operation safety is improved, and meanwhile, the physicalstrength of the operation doctor is saved.

A novel and useful highly maneuverable and disposable resectoscope having a working element such that surgeons are able to more comfortably perform transurethral resections. The resectoscope permits the surgeon to resect anywhere on the bladder or prostate wall while keep their hand in an ergonomic position. This results in more comfortable surgery that causes less fatigue for the surgeons as well a quicker, safer, and more effective operation. The disposable resectoscope includes a completely disposable design, an analog or digital optics system, a handle that is independently rotatable from the remainder of the resectoscope, a rotation mechanism that can independently rotate an electrocautery electrode and optical lens independent of the handle rotation, and a repositioning of surgical cords and cables for a more comfortable hand placement.

A urological resectoscope includes a main casing and an optic guide plate mounted proximally to and a fixed distance from the main casing. A slider is displaceably guided between the main casing and the optic guide plate. A drive rod is detachably affixed to the slider at a first distance from an optic tube longitudinally passing through the resectoscope and in a first angular position to the grip, said rod running from the slider, parallel to the optic tube, through the main casing and then in a second angular position relative to the optic tube and at a second, minute distance from it, and the optic tube together with matched, tightly enclosing stem tube of matched cross-section running as far as said stem tube's distal end zone, the drive rod supporting a surgical implement, characterized in that a free space corresponding at least to the excursion of the drive rod is provided in the main casing and is fitted in the region of the free space with a deviation site where it is pivoted out of the first angular position and first distance from said optic tube into the second angular position and the second distance.

A treatment electrode of a resectoscope apparatus is substantially semicircular-shaped. A length a of a first segment and a length b of a second segment satisfy a relationship of (a>2·b). The first segment is in parallel with the plane on which a parallel lead member exists and has the maximum width of the treatment electrode. The second segment is vertical to the first segment and has the maximum distance between an intersection to the first segment and an intersection to the treatment electrode.

The invention discloses a multipurpose laser endoscope, which comprises an endoscope channel, an optical fiber-electrode common channel and a front handle body with a handle, wherein the endoscope channel and the optical fiber-electrode common channel are fixedly connected; the outer parts of the endoscope channel and the optical fiber-electrode common channel are fixedly provided with the front handle body; the front handle body is provided with an elastic sealing mechanism communicated with the optical fiber-electrode common channel; the endoscope channel on the rear end of the front handle body is provided with a sliding support; the sliding support is provided with an electrode locking button, an optical fiber locking button, an optical fiber leading hole and an optical fiber leading channel communicated with the optical fiber leading hole; the sliding support is connected with a rear handle body; the endoscope channel is connected with an endoscope interface after passing through the sliding support; the endoscope is provided with an endoscope adapter substitute. According to the endoscope, the assemblies of other different brands of endoscopes can be used in order to realize a purpose that the endoscopes can be mutually replaced, the functions of a resectoscope and the endoscope are realized by the optical fiber-electrode common channel and an energy platform interface, and the multipurpose laser endoscope is suitable for different optical fibers and electrodes.

The invention provides a resectoscope with a novel sealing structure. The resectoscope with the novel sealing structure comprises a bipolar electrode and a work element. The bipolar electrode comprises an electrode body, a sealing plug, a binding post and a double-core wire. The tail end of the electrode body is connected with the double-core wire through the binding post, the binding post is fixed to the work element in a matched mode, the sealing plug and the head end structure of the work element are complementary and are fixed in a matched mode, and a complete sealing block is formed. The resectoscope is characterized in that the sealing plug is provided with two through holes, one hole is an endoscope hole, and the other hole is an electrode hole; the endoscope hole is used for an endoscope of the resectoscope to penetrate, and the electrode hole is used for the electrode body to penetrate. The sealing mode solves the problems that abrasion is caused by rigid connection of an inner sheath and the work element and rigid connection of the endoscope and the work element, and accordingly sealing performance is lowered, and meanwhile guarantees sealing reliability of a bipolar electrode assembly.

Disclosed herein are embodiments of an electrosurgical device that include one or more floating electrodes and are specifically adapted to remove, resect, ablate, vaporize, denaturize, coagulate and form lesions in soft tissues, preferably in combination with a resectoscope, particularly in the context of urological, gynecological, laparoscopic, arthroscopic, and ENT procedures. Specific adaptations for urological and gynecological applications, for example BPH treatment, are also described.

A medical instrument, in particular a resectoscope, comprises a distal first work element which is used for treating body tissue and which can be connected via an elongate work element holder to a handle at a proximal end for moving the work element, the handle having a carriage which is movable in the longitudinal direction of the work element holder and which has a first seat for releasable attachment of the work element holder to the carriage, and further comprises a receiver for an endoscope whose endoscope shaft, in the assembled state, extends substantially parallel to the first work element holder. The carriage has at least a second seat which is spaced apart from the first seat and provided for the first work element holder, or at least a second work element holder which at the distal end supports at least a second work element.

The invention discloses a tissue morcellation lithotriptoscope which comprises an operation pipe, an endoscope, a lighting channel and a scope sheath, an operation channel is axially arranged on the operation pipe, the endoscope and the lighting channel are arranged on the operation pipe, the scope sheath is detachably sleeved on the front section of the operation pipe and can be matched with a resectoscope, a water passing channel is formed between the outer wall of the operation pipe and the inner wall of the scope sheath, and a water inlet channel communicated with the water passing channel is axially arranged on the wall of the operation pipe. Firstly, by the aid of the tissue morcellation lithotriptoscope, only the scope sheath needs to be inserted into a urethra once in the whole surgery process, multiple injuries of the urethra due to the fact that instruments such as the resectoscope and the lithotriptoscope repeatedly enter the urethra are avoided, and the amount of bleeding is greatly reduced. Secondly, 1 / 3-1 / 2 surgical time can be saved in the whole surgery process, the labor intensity of doctors is greatly relieved, and the risk and the pain of a patient are greatly reduced. Thirdly, morcellated tissues and broken stones can be simultaneously exenterated by the aid of different water circulation, and a novel surgical operation mode is developed.

A working instrument for use in a resectoscope with a pushing force-transmitting elongated support, whose proximal end area includes an attachment section for attachment in a resectoscope, and whose distal end area carries a working device. The working instrument includes, in its distal end area, a handle element. The handle element projects in a distal direction beyond the support and the working device and is connected to the working instrument so as to transmit pushing forces and can be removed.

The invention discloses a resectoscope clamping device for transurethral resection of the prostate, and relates to the technical field of medical equipment. The resectoscope clamping device comprises a fixing mechanism, a rotating mechanism and a clamping mechanism, wherein the fixing mechanism comprises a connecting block; the rotating mechanism comprises a motor, a cross-shaped connecting block, a coupling, a deep groove ball bearing, a bearing positioning table, a big retaining ring, an angular contact ball bearing, a sleeve, a small retaining ring and a rotating connecting plate; and the clamping mechanism comprises a motor, guide rail baffle plates, a section material baseplate, a coupling, a coupling stop dog, a deep groove ball bearing, an optical axis, a ball screw, a feed screw nut, a sliding block, a push rod, a clamping block and a movable clamping block. The resectoscope clamping device has the beneficial effects that an operating knife is fixed on the clamping mechanism; a motor of the rotating mechanism drives the clamping mechanism and the operating knife to rotate for changing the resection angle of the operating knife; the motor of the clamping mechanism is used for driving assemblies of the clamping mechanism to complete the telescoping movement of an electric resection loop of the operating knife; the two-degree-of-freedom movement of the operating knife is realized; and the working intensity of doctors is reduced.

An electrode (9,) for use in urological resectoscopes including an elongated electrode carrier (7, 18, 19) that is provided in its proximal region with a spring element (20, 30′, 39, 40, 45) in order to establish an electric contact (12) and to mechanically fasten a sliding body (5) in a receiving guide (6, 36) via a snap-in connection. The spring element (20, 30′, 39, 40, 45) is disposed on the electrode body (7, 18, 19).

A urological resectoscope having a tubular shaft (3) is disclosed, having a fixed optical guide tube (2), within which there is an optical system (1) that projects distally beyond the optical guide tube. An elongate, rod-shaped carrier (4) is provided, which carries a cutting instrument (6) at its distal end. The carrier (4) is longitudinally moveably mounted in the tubular shaft (3) outside the optical guide tube (2). The carrier is held distally from the optical guide tube (2) with a sliding tube (8) on the optical system (1) at a radial spacing from the axis of the optical system (1). The carrier is also secured in the peripheral rotary direction to the optical guide tube (2) with a rotary lock (9, 10). The rotary lock has a bar (9) parallel to the carrier (4) and connected to it and a distally open elongate slot (10) in the optical guide tube (2).

A urological resectoscope (1) including a tubular, metallic external stem (2) fitted with holes (3) in its distal end zone, a tubular insulating element (7, 27, 37, 47) being affixed distally to the external stem, further including a tubular internal stem (8) configured within the external stem and resting against it in a sealing manner and an electrode support (13) longitudinally displaceable inside the internal stem and supporting a cutting loop (15) in the region of the insulating element (7, 27, 37, 47). The insulating element (7, 27, 37, 47) is configured in a longitudinally mutually overlapping manner within an affixation zone (6) and the insulating element (7, 27, 37, 47) exhibiting a wall thickness distally from the affixation zone (6) larger than the wall thickness of the external stem (2), wherein the inside diameter of the insulating element (27, 47) is the same as the inside diameter of the external stem (2).

The invention discloses a full-automatic cholesterol resectoscope used for medical science. The full-automatic cholesterol resectoscope comprises an injection cavity, wherein a pushing part is arranged in an inner cavity body of the injection cavity, a revolving knife group is fixed to an electric rotation shaft of a servo motor through a coupling, a camera shooting assembly is mounted on a shell of the servo motor, the camera shooting assembly is electrically connected with a controller, a suction inner cavity is further arranged in an inner cavity body of a resectoscope cavity, a miniature exhaust fan is supported in an inner cavity body of the suction inner cavity through a bracket, and the miniature exhaust fan is electrically connected with the controller. The full-automatic cholesterol resectoscope used for medical science is simple in structure, the revolving knife group is arranged, under the rotation of the revolving knife group, cholesterol attaching to the inner walls of the cells is cut along with the rotation of the revolving knife group, and through the suction of the miniature exhaust fan in the suction inner cavity, the cut cholesterol enters the suction inner cavity through a flow guide pipe to be stored.

The invention relates to a dual-polarline resectoscope and solves problems of positive-negative joints mis-insertion, poor sealing effect and inconvenient assembling and detachment of a resectoscope in the prior art. The resectoscope comprises an external sheath, an internal sheath, an operator, an endoscope and an electrode main body, wherein a main body sealing sleeve covers the endoscope and the electrode man body; the main body sealing sleeve is connected into an internal sheath back end connection port in a sealed way; the main body sealing sleeve is provided with an endoscope hole and an electrode hole; an electrode sealing sleeve is further embedded into the inner wall of the back end of the electrode hole; the back end of the electrode sealing sleeve is provided with a sealing wrapping head; and a dual-polar socket and a dual-polarline cooperated with dual-polar socket are arranged on the operator. The wrapping head can movably and tightly wrap up the outer wall of an electrode main body during the movement of the electrode main body, so water leakage can be prevented and sealing effect can be further improved; by the use of the dual-polarline, connection of positive wires and negative wires can be unnecessary, so a structure is simplified and operator work can be facilitated; and wrong connection can be also prevented.