CN116965912A

CN116965912A - Electric resectoscope

Info

Publication number: CN116965912A
Application number: CN202310682691.7A
Authority: CN
Inventors: 符伟军; 李泽军; 何成东
Original assignee: Bangshi Medical Technology Co ltd
Current assignee: Bangshi Medical Technology Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-10-31

Abstract

An electric resectoscope, which belongs to the technical field of medical appliances, and aims to solve the problems that the prior resectoscope needs a doctor to hold an operator and then frequently operate an operation electrode to reciprocate for cutting, and long-time force application easily causes hand fatigue of the doctor to influence the operation safety; according to the invention, the driving motor is matched with the driving screw rod, the tooth box and the electrode seat to drive the operation electrode to reciprocate, so that the excision work of pathological tissues is carried out, a doctor only needs to hold the handle of the electric operator during operation, and the driving motor is operated to rotate reversely through the forward key and the reverse key on the handle to carry out excision operation.

Description

Electric resectoscope

Technical Field

The invention relates to the technical field of medical instruments, in particular to an electric resectoscope.

Background

An electrotome is an instrument widely applied to tissue excision in urological surgery, and the main application fields of the electrotome include transurethral prostatectomy (TURP) and transurethral bladder tumor electrotomy (TURBT). During the course of several decades of technological development, the structure of the resectoscope has been essentially fixed, which generally includes an endoscope, an inner sheath, an outer sheath, an operator and a surgical electrode. Wherein, the manipulator has initiative and passive two kinds, and standard configuration is passive formula, and when passive formula used, operation electrode front end was in the sheath, and doctor held the manipulator handle and made the slider on the manipulator carry out reciprocating motion, and the manipulator includes two handles, and during the operation, doctor pushed the handle, drives the electrode on the handle and makes reciprocating motion along with the slider to realize the cutting.

However, general TURP or TURBT surgery is long, and varies from half an hour to two to three hours, during which time the doctor's fingers and arms need to be constantly moved to excise the target tissue, and the doctor needs to apply a large force to the handle, resulting in the doctor's hand being easily fatigued, so that the situation that the surgical movement is not standard may occur, affecting the safety of the operation (e.g., affecting the excision scope of the wound, hemostatic effect, etc.).

Therefore, we propose an electric resectoscope.

Disclosure of Invention

The invention provides an electric resectoscope, which aims to solve the problems that in the prior art, a doctor is required to hold an operator and then frequently operate an operation electrode to reciprocate for cutting, and long-time force application easily causes fatigue of the hand of the doctor to influence operation safety.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an electric resectoscope, includes electric operator and runs through the endoscope of installing in electric operator top department, and electric operator's inside is provided with the operation electrode, and the operation electrode terminal wears out and laminates the terminal setting of endoscope behind the electric operator casing, and endoscope and operation electrode terminal outside loop in proper order have interior sheath and outer sheath, electric operator includes drain pan and the top shell of closing cap on drain pan port outer wall, and driving motor is installed to the block in the cavity that drain pan and top shell formed, and driving motor transmission shaft end swing joint has the tooth case, and the one end and the drive lead screw of tooth case are fixed to link to each other, and drive lead screw other end swing joint is on cavity inner wall, and the activity is provided with the electrode holder on the drive lead screw outer wall, can dismantle on the electrode holder and connect the operation electrode, and the endoscope activity runs through the electrode holder setting.

Further, the outer wall of the hollow cavity is sequentially provided with a forward key and a reverse key, the inner wall of the hollow cavity is provided with a key board, and the forward key and the reverse key are connected with an external host through the key board and a connecting cable so as to control the forward and reverse rotation of the driving motor.

Further, the tooth box comprises a driving gear movably sleeved at the tail end of a transmission shaft of the driving motor and a driven gear meshed with the driving gear, the driven gear is fixedly connected with the tail end of the driving screw rod, and the driving gear and the driven gear are both in bevel gear structures.

Further, the middle part department is provided with the depressed part on the electrode holder one side outer wall, the depressed part is used for the fixed part of card solid operation electrode, and run through respectively on the electrode holder lateral wall at both ends about the depressed part and be provided with first through-hole and second through-hole, first through-hole and second through-hole are used for the activity to cup joint endoscope and drive lead screw respectively, the blind hole has been seted up to the electrode holder bottom, the blind hole link up the second through-hole along the radial direction of second through-hole, fixed mounting has the crescent moon round pin in the blind hole, the crescent moon round pin lower extreme extends to the outside back activity cutting ferrule of blind hole and reciprocates screw thread department on the drive lead screw.

Further, a transition groove is formed in the outer wall of one side of the electric operator shell corresponding to the electrode seat, after the surgical electrode is clamped on the side wall of the electrode seat through a fixing component, the cable connecting end of the surgical electrode extends to the outside of the electric operator shell through the transition groove, the tail end of the electrode end of the surgical electrode is movably clamped by a movable clamping sleeve through a movable clamping pin and is suspended at the bottom of the tail end of the endoscope, and the tail ends of the endoscope and the surgical electrode are suspended in an inner sheath and an inner sheath cavity on the outer wall of the output end of the electric operator.

Further, a mirror locking mechanism is arranged on the outer wall of the contact part of the endoscope and the electric operator shell, the mirror locking mechanism is embedded on the outer wall of the shell at the tail end of the top of the electric operator, and the mirror locking mechanism is used for sealing the joint part of the electric operator shell and the endoscope.

Further, the mirror locking mechanism comprises a mirror seat which is embedded and installed on the outer wall of the shell at the tail end of the top of the electric manipulator, a sealing cap and a mirror pad are sequentially sleeved in an inner cavity of the mirror seat, a mirror clamping tongue is movably sleeved on the outer wall of a notch of the mirror seat, and the mirror clamping tongue is used for clamping and fixing the mirror seat and the endoscope after the endoscope passes through the sealing cap and the mirror pad.

Further, the sealing cap is provided with an annular storage sleeve in a jogged manner on the side wall of one end of the electric operator shell, an injection valve nozzle is arranged on the outer wall of the annular storage sleeve, a plurality of diversion capillaries are uniformly arranged on the outer wall of one side of the annular storage sleeve, which is far away from the injection valve nozzle, the diversion capillaries are all extended into the sealing cap, a plurality of leading-out tubules are uniformly arranged on the side wall of the diversion capillaries, and the leading-out tubule ports are respectively extended to the outer wall of the sealing cap and the inner wall of the middle hole.

Further, an operation port is formed in the bottom of the electric operator shell, the operation port extends to the side wall of the electric operator, a disassembly cover is movably arranged on the outer wall of the port of the operation port, a torsion spring is arranged on the surface of the disassembly cover facing the inside of the electric operator, a clamping piece is arranged on the inner wall of the electric operator shell corresponding to the operation port and used for fixedly supporting a driving motor, and a connecting cable of the driving motor extends to the outside of the electric operator shell through the port at the bottom of the operation port.

Further, the fastener includes fixed connection motor buckle and the elastic component of fixed connection on motor buckle outer wall on electric operator casing inner wall, motor buckle passes through elastic component fixed connection on electric operator casing inner wall, respectively fixedly connected with gag lever post on the lateral wall at motor buckle both ends, movable block has the actuating lever between the electric operator casing both ends inner wall in the motor buckle outside, the punishment fixedly connected with extrusion ejector pad of locating lever department on the outer wall of actuating lever both ends corresponds on the outer wall, fixedly connected with connecting rod on the extrusion pad outer wall of actuating lever one end, the connecting rod sets up in electric operator casing bottom opening one side, the connecting rod end runs through electric operator casing bottom plate and extends to its outside, twine on the connecting rod outer wall between extrusion pad lateral wall and electric operator casing bottom plate inner wall is provided with reset spring.

Compared with the prior art, the invention has the following beneficial effects:

according to the electric resectoscope, the driving motor is matched with the driving screw rod, the tooth box and the electrode seat to drive the operation electrode to reciprocate, so that the resection work of lesion tissues is carried out, a doctor only needs to hold the handle of the electric manipulator during operation, and the forward key and the reverse key on the handle operate the driving motor to rotate reversely to carry out the resection operation.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the assembly structure of the surgical electrode of the present invention;

FIG. 3 is a schematic illustration of the de-inner and outer sheath structures of the present invention;

FIG. 4 is a schematic view showing the internal structure of the electric manipulator according to the present invention;

FIG. 5 is a schematic view of the assembly structure of the electrode holder, the driving screw and the gearbox of the present invention;

FIG. 6 is a schematic view of an electrode holder according to the present invention;

FIG. 7 is a schematic view of a partial cross-sectional structure of the electrode holder of FIG. 4 according to the present invention;

FIG. 8 is a schematic view in partial cross-section of the lock mirror mechanism of FIG. 4 in accordance with the present invention;

FIG. 9 is a schematic diagram of the assembly of the lock mirror mechanism of the present invention;

FIG. 10 is a cross-sectional view of a seal cap of the present invention;

FIG. 11 is a schematic view of the mounting structure of the removable cover of the present invention;

FIG. 12 is an enlarged schematic view of the structure of FIG. 4A according to the present invention;

fig. 13 is a schematic diagram of a structure of a fastener according to the present invention.

In the figure: 1. an electric operator; 101. an operation port; 102. disassembling and assembling the cover; 103. a torsion spring; 104. a clamping piece; 1041. a motor buckle; 1042. an elastic member; 1043. a limit rod; 1044. a driving rod; 1045. extruding and pushing the block; 1046. a connecting rod; 1047. disassembling the button; 1048. a return spring; 11. a bottom case; 12. a top shell; 13. a driving motor; 14. a tooth box; 141. a drive gear; 142. a driven gear; 15. driving a screw rod; 16. an electrode base; 161. a recessed portion; 162. a first through hole; 163. a second through hole; 164. a blind hole; 165. a crescent pin; 17. a forward key; 18. a reverse key; 19. a key sheet; 2. an endoscope; 21. a mirror locking mechanism; 211. a lens base; 212. a sealing cap; 2121. an annular storage sleeve; 2122. an injection valve nozzle; 2123. a diversion capillary; 2124. a tubule is led out; 213. a lens pad; 214. mirror latch; 3. a surgical electrode; 31. a movable bayonet lock; 4. an inner sheath; 5. an outer sheath; 6. let the aqueduct.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1-3, an electric resectoscope comprises an electric manipulator 1 and an endoscope 2 which is installed at the top of the electric manipulator 1 in an inverted L shape, and is convenient for a doctor to hold, an operation electrode 3 is arranged in the electric manipulator 1, a transition groove 6 is arranged on the outer wall of one side of a shell of the electric manipulator 1, the transition groove 6 is of a strip-shaped structure, a cable connecting end of the operation electrode 3 extends to the outside of the shell of the electric manipulator 1, the tail end of the electrode end of the operation electrode extends to the bottom of the tail end of the endoscope 2 through a movable clamping pin 31 in a movable clamping sleeve, the tail ends of the endoscope 2 and the operation electrode 3 are suspended in inner cavities of an inner sheath 4 and an outer sheath 5 on the outer wall of the output end of the electric manipulator 1, and the inner sheath 4 and the outer sheath 5 of the endoscope 2 are sequentially sleeved on the outer wall of the output end of the top of the electric manipulator 1 in a ring mode.

In order to solve the problem that the prior resectoscope needs to frequently operate the operation electrode 3 to reciprocate to cut after a doctor holds an operator, and the long-time force application easily causes hand fatigue of the doctor to influence the operation safety, referring to fig. 1-7, the following preferable technical scheme is provided:

the electric operator 1 comprises a bottom shell 11 and a top shell 12 covered on the outer wall of a port of the bottom shell 11, the bottom shell 11 and the top shell 12 can be mutually buckled to form a hollow accommodating space, a plurality of concave parts and convex parts are arranged on the inner surfaces of the bottom shell 11 and the top shell 12 and are used for being mutually buckled and fixed, a driving motor 13 is arranged in a hollow cavity formed by the bottom shell 11 and the top shell 12 in a clamping manner, the tail end of a transmission shaft of the driving motor 13 is movably connected with a tooth box 14, one end of the tooth box 14 is fixedly connected with a driving screw 15, the other end of the driving screw 15 is movably connected onto the inner wall of the hollow cavity, an electrode seat 16 is movably arranged on the outer wall of the driving screw 15, a surgical electrode 3 is detachably connected on the electrode seat 16, and the endoscope 2 is movably arranged through the electrode seat 16.

The outer wall of the hollow cavity is sequentially provided with a forward key 17 and a reverse key 18, the inner wall of the hollow cavity is provided with a key board 19, the forward key 17 and the reverse key 18 are electrically connected with the key board 19, the forward key 17 and the reverse key 18 are externally connected with an external host through the key board 19 and a connecting cable so as to control the forward and reverse rotation of the driving motor 13, and the forward key 17 and the reverse key 18 are arranged at the position, which is contacted with the key board 19, outside the shell of the electric operator 1; in addition, the driving motor 13 of the electric operator 1 is a variable speed motor, and the rotating speed of the motor can be set on an external host machine, so that the moving speed of the operation electrode 3 is controlled to adapt to different cutting requirements.

The tooth box 14 mainly comprises two mutually meshed bevel gears, the tooth box 14 is divided into a driving gear 141 and a driven gear 142 according to the functions of the driving gear 141 and the driven gear 142, the tooth box 14 is fixed on the bottom shell 11, the two mutually meshed bevel gears are packaged, the arrangement of the tooth box 14 can ensure that the two bevel gears are positioned in the same horizontal plane, thereby ensuring the transmission effect between the two bevel gears, the driven gear 142 is transversely arranged and fixed with one end of the driving screw 15, and the driving gear 141 is longitudinally arranged and fixed with the transmission shaft of the driving motor 13; when the driving motor 13 works, the driving gear 141 is driven to rotate around the longitudinal direction, so that the driven gear 142 meshed with the driving gear 141 at an angle of 45 degrees is driven to rotate around the transverse direction, and the driving screw 15 is driven to rotate around the transverse direction, and because the driving screw 15 is provided with the reciprocating threads, in the rotating process, the crescent pin 165 can be clamped on the reciprocating threads to drive the electrode holder 16 to move forwards or backwards along the transverse direction, and in addition, based on the design of the reciprocating threads on the surface of the driving screw 15, when the crescent pin 165 drives the electrode holder 16 to move to the limit positions at the two ends of the driving screw 15, the electrode holder can automatically turn back to the opposite direction, so that the reciprocating motion of the operation electrode 3 is realized.

The middle part department is provided with the depressed part 161 on the outer wall of electrode holder 16 one side, the fixed part that the depressed part 161 was used for the card to set operation electrode 3, and run through respectively on the electrode holder 16 lateral wall at both ends about the depressed part 161 and be provided with first through-hole 162 and second through-hole 163, first through-hole 162 and second through-hole 163 are used for the activity to cup joint endoscope 2 and drive lead screw 15 respectively, blind hole 164 has been seted up to electrode holder 16 bottom, blind hole 164 link up second through-hole 163 along the radial direction of second through-hole 163, fixedly mounted with crescent moon round pin 165 in the blind hole 164, movable cutting ferrule is in the reciprocal screw thread department on drive lead screw 15 after crescent moon round pin 165 lower extreme extends to the blind hole 164 outside.

Specifically, during operation, a doctor presses the forward button 17, the button plate 19 receives and transmits the signal to an external host through a cable, the external host controls a driving motor 13 connected with the external host through the cable to rotate forward, the driving motor 13 drives a driving screw rod 15 to rotate based on a tooth box 14, a driving crescent pin 165 slides along the reciprocating thread of the driving screw rod 15, so that an electrode seat 16 is utilized to drive a surgical electrode 3 to move distally from an initial position (the initial position is one side, close to a driven gear 142, on the driving screw rod 15) and after reaching a distal limit position, the surgical electrode 3 can automatically move reversely and return to the initial position due to the structural characteristics on the driving screw rod 15, and the surgical electrode 3 is driven to reciprocate back and forth in such a cycle, so that diseased tissues are resected; in this process, for example, when a doctor needs to perform a hemostasis operation on a certain position during the distal movement of the operation electrode 3, the forward button 17 may be released when the operation electrode 3 reaches the target position, and the driving motor 13 stops rotating forward, the operation electrode 3 stops at the target position, and the doctor may perform the hemostasis operation, and then, according to the actual requirement, the doctor may choose to continuously press the forward button 17 to continuously move the operation electrode 3 forward to the distal limit position to continuously reciprocate, or choose to continuously press the reverse button 18 to reversely rotate the driving motor 13, so as to control the operation electrode 3 to move backward to the initial position to continuously reciprocate, so as to cut the lesion tissue.

In addition, when a doctor needs to resect a specific part, the method can be realized by alternately using the forward key 17 and the reverse key 18. Specifically, when the specific part is resected, the doctor presses the forward button 17, the driving motor 13 rotates forward, the operation electrode 3 is controlled to move forward to the specific part, the forward button 17 is loosened, the reverse button 18 is pressed, the driving motor 13 rotates reversely, the operation electrode 3 is controlled to move backward, one-time cutting of the specific part is realized, the operation process can be repeated until the specific part is resected completely, the condition that the doctor needs to constantly act on fingers and arms to resect target tissues in a long-time operation period and needs to apply larger force on the handle is avoided, the hand is easy to fatigue, the condition that the operation action is not standard can occur, the influence on the safety of operation (such as affecting the resection range of wounds, the hemostatic effect and the like) is avoided, the accuracy of the operation of the doctor is improved, and the operation is efficient and practical.

In the implementation shown in fig. 4, 8 and 9, the protection object of the embodiment is a lock mirror mechanism 21, and the lock mirror mechanism 21 is embedded and installed on the side wall at the top end of the shell of the electric operator 1 so as to wrap the endoscope 2 extending into the shell of the electric operator 1, and the joint of the lock mirror mechanism and the shell is sealed, so that the liquid state enters into the shell of the electric operator 1 during operation to damage parts.

The outer wall of the contact part of the endoscope 2 and the shell of the electric operator 1 is provided with a lock mirror mechanism 21, the lock mirror mechanism 21 is embedded on the outer wall of the shell at the tail end of the top of the electric operator 1, and the lock mirror mechanism 21 is used for sealing the joint part of the shell of the electric operator 1 and the endoscope 2.

The mirror locking mechanism 21 comprises a mirror seat 211 which is embedded and installed on the outer wall of the shell at the tail end of the top of the electric operator 1, a sealing cap 212 and a mirror pad 213 are sequentially sleeved in an inner cavity of the mirror seat 211, two grooves which are penetrated along the circumferential direction, one groove which is not penetrated along the circumferential direction and one C-shaped protruding part are arranged on the outer surface of the mirror seat 211 along the circumferential direction, and one groove is arranged along the axial direction, wherein the grooves which are penetrated along the circumferential direction are embedded with the protruding bone phase on the bottom shell 11, the grooves along the axial direction are embedded with the protruding bone phase on the top shell 12, and the grooves which are not penetrated along the circumferential direction are embedded and fixed with the shell of the electric operator 1; a gap is also arranged between the non-through groove along the circumferential direction and the C-shaped protruding part, and the width of the gap is matched with the width of the protruding part of the mirror pad 213 along the axial direction; a through hole is arranged in the axial center of the mirror seat 211, the endoscope 2 can pass through the through hole, a mirror clamping tongue 214 is movably sleeved on the outer wall of the notch of the mirror seat 211, and the mirror clamping tongue 214 is used for clamping the mirror seat 211 and the endoscope 2 after the endoscope 2 passes through the sealing cap 212 and the mirror pad 213.

Specifically, the gasket 213 and the sealing cap 212 are sequentially penetrated from the end of the endoscope 2, so that the gasket 213 and the sealing cap 212 are slidably stacked against the end of the lens barrel at the end of the tail end of the endoscope 2, then the endoscope 2 is penetrated from the lens holder 211 on the side wall at the tail end of the top of the shell of the electric operator 1, so that the end of the endoscope 2 penetrates out of the other end of the shell of the electric operator 1, the gasket 212 and the gasket 213 on the outer wall of the endoscope 2 are sequentially pressed and clamped in the lens holder 211, then the mirror clamping tongue 214 is clamped in the notch on the outer wall of the end of the lens holder 211, the endoscope 2 sequentially penetrates through the gasket 213, the sealing cap 212 and the lens holder 211, the mirror clamping tongue 214 is clamped on the outer surface of the notch of the lens holder 211, one side abuts against the shell of the electric operator 1, and the other side abuts against the C-shaped protruding part of the lens holder 211, so that the endoscope 2 is clamped tightly, and at the same time of ensuring the installation stability of the endoscope 2 and the electric operator 1, liquid is effectively prevented from penetrating into the electric operator 1 from the joint of the endoscope 2 and the electric operator 1, so that the liquid in the operation is prevented from entering the electric operator 1, and affecting the inside of the electric operator 1, the electric operator, rust is prevented, and other parts inside the electric operator are integrated into the electric operator, and the electric operator is compact in the whole structure, and the electric actuator is further, and the electric actuator is integrated, and the electric actuator is compact, and the structure is in the structure is further, and attractive.

In the embodiment shown in fig. 10, the sealing cap 212 is further optimized to enhance the tightness of the electric operator 1, an annular storage sleeve 2121 is embedded on the side wall of one end of the sealing cap 212 far away from the casing of the electric operator 1, an injection valve nozzle 2122 is arranged on the outer wall of the annular storage sleeve 2121, a plurality of diversion capillaries 2123 are uniformly arranged on the outer wall of one side of the annular storage sleeve 2121 far away from the injection valve nozzle 2122, the diversion capillaries 2123 all extend into the sealing cap 212, a plurality of extraction tubules 2124 are uniformly arranged on the side wall of the diversion capillaries 2123, and ports of the extraction tubules 2124 extend to the outer wall of the sealing cap 212 and the inner wall of the middle hole respectively.

Specifically, when the injection valve 2122 is used to inject the vaseline milk into the annular storage sleeve 2121, the endoscope 2 passes through the sealing cap 212 and is clamped by the lens holder 211, the endoscope 2 pushes the lens pad 213 to squeeze the sealing cap 212, the annular storage sleeve 2121 is synchronously squeezed and deformed, the vaseline milk in the annular storage sleeve 2121 is squeezed into the guide capillaries 2123 and is split from the guide capillaries 2124 on the side walls of the guide capillaries 2123, the vaseline milk is split from the outer wall of the sealing cap 212 and the inner wall of the middle hole through the guide capillaries 2124 and is respectively squeezed out from the inner wall of the inner hole of the sealing cap 212 and between the endoscope 2 and the outer wall of the sealing cap 212 and the inner wall of the lens holder 211, so that an oil film is formed inside and outside the sealing cap 212, and gaps between the inner wall of the inner hole of the sealing cap 212 and the inner wall of the endoscope 2 and between the outer wall of the sealing cap 212 and the inner wall of the lens holder 211 are further sealed, and the tightness of the shell of the electric manipulator 1 is fully ensured.

In the embodiment shown in fig. 4 and fig. 11-13, the protection object includes a clamping piece 104, and the clamping piece 104 clamps the driving motor 13 in an adjustable manner, so that the driving motor 13 can be conveniently and quickly disassembled and replaced.

An operation port 101 is formed in the bottom of the shell of the electric operator 1, the operation port 101 extends to the side wall of the electric operator 1, a disassembly cover 102 is movably arranged on the outer wall of a port of the operation port 101, a torsion spring 103 is arranged on the surface of the disassembly cover 102 facing the inside of the electric operator 1, the disassembly cover 102 is conveniently opened and buckled, a clamping piece 104 is arranged on the inner wall of the shell of the electric operator 1 corresponding to the operation port 101, the clamping piece 104 is used for fixedly supporting a driving motor 13, and a connecting cable of the driving motor 13 extends to the outside of the shell of the electric operator 1 through the bottom through port of the operation port 101.

The fastener 104 comprises a motor buckle 1041 fixedly connected to the inner wall of the shell of the electric operator 1 and an elastic component 1042 fixedly connected to the outer wall of the motor buckle 1041, the motor buckle 1041 is fixedly connected to the inner wall of the shell of the electric operator 1 through the elastic component 1042, limiting rods 1043 are fixedly connected to the side walls of the two ends of the motor buckle 1041 respectively, a driving rod 1044 is movably clamped between the inner walls of the two ends of the shell of the electric operator 1 at the outer side of the motor buckle 1041, a push block 1045 is fixedly connected to the outer walls of the two ends of the driving rod 1044 corresponding to the limiting rods 1043 respectively, the push block 1045 is lapped against the upper end of the limiting rods 1043, a connecting rod 1046 is fixedly connected to the outer wall of the push block 1045 at one end of the driving rod 1044, the connecting rod 1046 is arranged on one side of the through opening at the bottom of the shell of the electric operator 1, the tail end of the connecting rod 1046 penetrates through the shell bottom plate of the electric operator 1 and extends to the outside of the electric operator, the tail end of the connecting rod 1047 is fixedly connected with the push button 1047, and a reset spring 1048 is wound on the outer wall of the connecting rod 1046 between the side wall of the push block 1045 and the shell bottom plate of the electric operator 1.

Specifically, when the driving motor 13 needs to be replaced, the disassembly cover 102 is opened, the disassembly button 1047 is pressed, the connecting rod 1046 pushes the driving rod 1044 to move close to the driving motor 13, the extrusion pushing blocks 1045 at two ends are pushed to slide along the limit rods 1043 on the outer walls at two ends of the motor buckle 1041 when the driving rod 1044 moves, and when the bottom inclined planes of the extrusion pushing blocks 1045 slide along the limit rods 1043, the extrusion pushing blocks 1043 are pushed reversely to apply downward pressure to the motor buckle 1041, the motor buckle 1041 is pushed to move downwards to compress the elastic component 1042, and clamping of the driving motor 13 is released, so that the driving motor 13 can be taken out; when a new driving motor 13 is inserted, the driving motor 13 slides to the upper end along the end inclined plane of the motor buckle 1041 to apply force to the elastic component 1042 downwards, so that when the driving motor 13 reaches the target installation position, the elastic component 1042 can reset the motor buckle 1041, thereby fixing the driving motor 13, and in the process, the disassembly button 1047 also automatically bounces and resets.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electronic resectoscope, includes electric operator (1) and runs through endoscope (2) of installing in electric operator (1) top department, and the inside of electric operator (1) is provided with operation electrode (3), and the terminal back laminating endoscope (2) end setting of electric operator (1) casing is worn out to operation electrode (3) end, and endoscope (2) and operation electrode (3) end outside loop in proper order have inner sheath (4) and outer sheath (5), its characterized in that: the electric manipulator (1) comprises a bottom shell (11) and a top shell (12) which is covered on the outer wall of a port of the bottom shell (11), a driving motor (13) is mounted in a hollow cavity formed by the bottom shell (11) and the top shell (12) in a clamping manner, a tooth box (14) is movably connected to the tail end of a transmission shaft of the driving motor (13), one end of the tooth box (14) is fixedly connected with a driving screw rod (15), the other end of the driving screw rod (15) is movably connected to the inner wall of the hollow cavity, an electrode seat (16) is movably arranged on the outer wall of the driving screw rod (15), a surgical electrode (3) is detachably connected to the electrode seat (16), and the endoscope (2) is movably arranged through the electrode seat (16);

a mirror locking mechanism (21) is arranged on the outer wall of the contact part of the endoscope (2) and the shell of the electric operator (1), the mirror locking mechanism (21) is embedded on the outer wall of the shell at the tail end of the top of the electric operator (1), and the mirror locking mechanism (21) is used for sealing the joint part of the shell of the electric operator (1) and the endoscope (2).

2. An electric resectoscope as claimed in claim 1, wherein: the outer wall of the hollow cavity is sequentially provided with a forward key (17) and a reverse key (18), the inner wall of the hollow cavity is provided with a key board (19), and the forward key (17) and the reverse key (18) are externally connected with an external host through the key board (19) and a connecting wire so as to control the forward and reverse rotation of the driving motor (13).

3. An electric resectoscope as claimed in claim 1, wherein: the tooth box (14) comprises a driving gear (141) movably sleeved at the tail end of a transmission shaft of the driving motor (13) and a driven gear (142) meshed with the driving gear (141), the driven gear (142) is fixedly connected with the tail end of the driving screw rod (15), and the driving gear (141) and the driven gear (142) are of bevel gear structures.

4. An electric resectoscope as claimed in claim 1, wherein: the middle part department is provided with depressed part (161) on electrode holder (16) one side outer wall, the fixed part that depressed part (161) were used for block fixed operation electrode (3), and run through respectively on electrode holder (16) lateral wall at both ends about depressed part (161) and be provided with first through-hole (162) and second through-hole (163), first through-hole (162) and second through-hole (163) are used for the activity to cup joint endoscope (2) and drive lead screw (15) respectively, blind hole (164) have been seted up to electrode holder (16) bottom, blind hole (164) link up second through-hole (163) along the radial direction of second through-hole (163), fixed mounting has crescent moon round pin (165) in blind hole (164), the reciprocal screw thread department of activity cutting ferrule on drive lead screw (15) after crescent moon round pin (165) lower extreme extends to the outside of blind hole (164).

5. An electric resectoscope as claimed in claim 4, wherein: after the operation electrode (3) is clamped on the side wall of the electrode seat (16) through a fixing component, the cable connecting end of the operation electrode (3) extends to the outside of the shell of the electric operator (1) through the aqueduct (6), the tail end of the electrode end of the operation electrode is movably clamped and suspended at the bottom of the tail end of the endoscope (2) through a movable clamping sleeve of a movable clamping pin (31), and the tail ends of the endoscope (2) and the operation electrode (3) are suspended in inner cavities of an inner sheath (4) and an outer sheath (5) on the outer wall of the output end of the electric operator (1).

6. An electric resectoscope as claimed in claim 1, wherein: the mirror locking mechanism (21) comprises a mirror seat (211) which is embedded and installed on the outer wall of a shell at the tail end of the top of the electric operator (1), a sealing cap (212) and a mirror pad (213) are sequentially sleeved in an inner cavity of the mirror seat (211), a mirror clamping tongue (214) is movably sleeved on the outer wall of a notch of the mirror seat (211), and the mirror clamping tongue (214) is used for clamping the mirror seat (211) and the endoscope (2) after the endoscope (2) passes through the sealing cap (212) and the mirror pad (213).

7. An electric resectoscope as claimed in claim 6, wherein: the sealing cap (212) is far away from the side wall of one end of the shell of the electric operator (1), an annular storage sleeve (2121) is embedded on the side wall of one end of the shell, an injection valve nozzle (2122) is arranged on the outer wall of the annular storage sleeve (2121), a plurality of diversion capillaries (2123) are uniformly arranged on the outer wall of one side, far away from the injection valve nozzle (2122), of the annular storage sleeve (2121), the diversion capillaries (2123) all extend to the inside of the sealing cap (212), a plurality of leading-out tubules (2124) are uniformly arranged on the side wall of the diversion capillaries (2123), and ports of the leading-out tubules (2124) extend to the outer wall of the sealing cap (212) and the inner wall of the middle hole respectively.

8. An electric resectoscope as claimed in claim 1, wherein: an operation port (101) is formed in the bottom of a shell of the electric operator (1), the operation port (101) extends to the side wall of the electric operator (1), a disassembly cover (102) is movably arranged on the outer wall of a port of the operation port (101), a torsion spring (103) is arranged on the surface of the disassembly cover (102) facing the inside of the electric operator (1), a clamping piece (104) is arranged on the inner wall of the shell of the electric operator (1) corresponding to the operation port (101), the clamping piece (104) is used for fixedly supporting a driving motor (13), and a connecting cable of the driving motor (13) extends to the outside of the shell of the electric operator (1) through the bottom opening of the operation port (101).

9. An electric resectoscope as claimed in claim 8, wherein: the clamping piece (104) comprises a motor buckle (1041) fixedly connected to the inner wall of a shell of the electric operator (1) and an elastic component (1042) fixedly connected to the outer wall of the motor buckle (1041), the motor buckle (1041) is fixedly connected to the inner wall of the shell of the electric operator (1) through the elastic component (1042), limit rods (1043) are fixedly connected to the side walls of the two ends of the motor buckle (1041) respectively, driving rods (1044) are movably clamped between the inner walls of the two ends of the shell of the electric operator (1) at the outer side of the motor buckle (1041), push blocks (1045) are fixedly connected to the outer walls of the corresponding limit rods (1043) at the two ends of the driving rods (1044) respectively, connecting rods (1046) are fixedly connected to the outer walls of the push blocks (1045) at one end of the driving rods (1044), the tail ends of the connecting rods (1046) penetrate through the bottom opening side of the shell of the electric operator (1) and extend to the outer parts of the bottom of the shell, the tail ends of the connecting rods are fixedly connected with disassembly buttons (1047), and reset springs (1048) are arranged between the side walls of the push blocks (1045) and the inner walls of the shell of the electric operator (1041).