Prostate enucleation mirror

Abstract

This invention discloses a prostate enucleator, comprising: an inner sheath, which is tubular; an outer sheath, which is tubular and coaxially sleeved on the inner sheath; a flexible segment comprising an inner flexible tube and an outer flexible tube coaxially arranged; one end of the inner flexible tube is fixedly connected to the inner sheath, and one end of the outer flexible tube is fixedly connected to the outer sheath; the other end of the flexible segment has an end plate; two traction wires are arranged at intervals, one end of which is fixedly connected to the end plate or the flexible segment, and the other end can be pulled to bend the flexible segment to one side, changing the angle of the end plate. The prostate enucleator provided by this invention can adjust the field of view of the enucleator without relying on the lever action of a rigid endoscope, reducing the force on the sphincter muscle.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and specifically relates to a prostate enucleation endoscope. Background Technology

[0002] In the current clinical urology field, glandular enucleation surgery for patients with benign prostatic hyperplasia mainly relies on transurethral endoscopic systems, including: disposable flexible cystoscopes, thulium laser enucleators, holmium laser enucleators, and rigid endoscopic systems such as plasma electrocautery.

[0003] Disposable flexible cystoscopes, as flexible endoscopic devices, are mainly used for the examination of the urethra and bladder mucosa, lesion observation, and biopsy sampling. While these devices have a small diameter and excellent flexibility, they lack surgical capabilities such as laser enucleation, tissue traction, and cystic membrane separation. Their structural characteristics limit their application to observational purposes; they cannot provide the support, energy transfer, or tissue separation functions required during prostate enucleation, and therefore cannot solve the technical problem of insufficient external sphincter protection in HoLEP / ThuLEP procedures.

[0004] Rigid endoscopic systems such as thulium laser enucleators, holmium laser enucleators, and plasma electrosurgical resection systems are all rigid endoscopic surgical instruments. They are inserted into the prostate region via the urethra through a standard 24–26 Fr continuous flow sheath for gland resection, enucleation, or vaporization. Their structural characteristics include: thick sheath walls and high rigidity, requiring repeated advancement, swinging, rotation, and traction within the urethral lumen; near the apex of the prostate and the membranous urethra, manipulation must be performed close to the external urethral sphincter; and varying degrees of mechanical compression are applied during the procedure.

[0005] In enucleation surgeries such as Holep / ThuLEP / TURP, repeated manipulation of the endoscope in the apical region of the prostate can cause mechanical traction, compression, or shearing damage to the external urethral sphincter, leading to short-term or even medium-term urinary incontinence after surgery.

[0006] In traditional rigid endoscopic enucleation, the rigid endoscope is used to push, rotate, and pull in a lever-like manner to establish the enucleation plane in the apex of the prostate and the membranous urethra. This is an important factor leading to damage to the external sphincter and short-term urinary incontinence after surgery.

[0007] In summary, the drawbacks of rigid enucleoscopes are that they cannot avoid the risk of damage to the external urethral sphincter. Existing enucleoscope sheaths are all rigid structures, and after entering the urethra, the fiber angle must be repeatedly advanced, rotated, and adjusted in the area of ​​the external urethral sphincter. The requirements are even higher in the apex of the prostate, which exposes the sphincter to mechanical squeezing, friction, and traction forces, resulting in temporary or reversible functional decline of the sphincter.

[0008] Therefore, while rigid enucleators can remove glands, they lack a structural design that reduces stress on the sphincter. Currently, there are no endoscopic products on the market specifically designed to "reduce stress exposure on the external sphincter during surgery and lower the risk of sphincter injury." Summary of the Invention

[0009] The purpose of this invention is to overcome the defect of excessive sphincter stress during the use of existing rigid enucleators and to provide a prostate enucleator that can adjust the field of view of the enucleator without relying on the lever action of the rigid endoscope, thereby reducing sphincter stress.

[0010] Another objective of this invention is to provide a prostate enucleation endoscope with an inlet and a outlet channel, which allows for flushing during surgery and timely removal of water.

[0011] The technical solution provided by this invention is as follows: A prostate enucleator, comprising: The inner sheath is tubular; The outer sheath is tubular and coaxially fitted onto the inner sheath; The flexible segment includes an inner flexible tube and an outer flexible tube arranged coaxially; one end of the inner flexible tube is fixedly connected to the inner sheath, and one end of the outer flexible tube is fixedly connected to the outer sheath; The other end of the flexible segment has an end plate. Two traction lines are arranged at relatively intervals. One end of each line is fixedly connected to the end plate or the flexible segment, and the other end can be pulled to bend the flexible segment to one side and change the angle of the end plate.

[0012] Preferably, the inner sheath and the inner flexible tube are coaxially fixedly connected to form a first tube body, and a first cavity is formed inside the first tube body; the outer sheath and the outer flexible tube are coaxially fixedly connected to form a second tube body, and a second cavity is formed between the second tube body and the first tube body. The end plate is provided with a plurality of front water inlet holes, which are connected to the first cavity.

[0013] Preferably, the prostate enucleator further includes: Multiple water outlets are provided on the outer flexible tube, and the water outlets are connected to the second cavity.

[0014] A prostate enucleator, comprising: The inner sheath is tubular; The outer sheath is tubular and coaxially fitted onto the inner sheath; The flexible segment includes an inner flexible tube and an outer flexible tube arranged coaxially; one end of the inner flexible tube is connected to the inner sheath, and one end of the outer flexible tube is connected to the outer sheath; The front end has one end fixedly connected to the other end of the inner flexible tube and the outer flexible tube, and the other end of the front end is provided with an end plate. Two traction lines are arranged at relatively intervals. One end of each line is fixedly connected to the flexible segment or the front end, and the other end can be pulled to bend the flexible segment to one side and change the angle of the end plate.

[0015] Preferably, the front end portion includes an inner tube, an outer tube, and an end plate, with the inner tube and outer tube being coaxially arranged; The inner sheath, the inner flexible tube, and the inner tube are coaxially and fixedly connected in sequence to form a first tube body, and the interior of the first tube body forms a first cavity; the outer sheath, the outer flexible tube, and the outer tube are coaxially and fixedly connected in sequence to form a second tube body, and the second tube body and the first tube body form a second cavity; the end plate is fixedly connected to the extended ends of the inner tube and the outer tube. Multiple water outlets are provided on the outer pipe, and the water outlets are connected to the second cavity.

[0016] Preferably, the end plate is provided with a plurality of front water inlet holes, which are connected to the first cavity.

[0017] Preferably, the prostate enucleator further includes: A water inlet / outlet connector, one end of which is detachably connected to the free end of the outer sheath; the water inlet / outlet connector includes: Inner tube of the connector; The outer tube of the connector is coaxially sleeved on the inner tube of the connector; An annular baffle plate is fixedly connected in the annular cavity between the inner tube and the outer tube of the connector, dividing the annular cavity into an inlet annular cavity and an outlet annular cavity. The annular cavity for water outlet is connected to the second cavity. The inlet is located on the outer pipe of the connector and communicates with the inlet annular cavity. The water outlet is located on the outer pipe of the connector and communicates with the water outlet annular cavity; The connector inner tube at the water inlet annular cavity is provided with multiple end water inlet holes, which are connected to the first cavity.

[0018] Preferably, the prostate enucleator further includes a traction mechanism for pulling the two traction wires, which includes: The housing is detachably connected to the other end of the inlet / outlet connector; A traction wheel, which is rotatably connected within the housing; The two traction lines are symmetrically fixedly connected to both sides of the traction wheel in the circumferential direction; the housing has a limiting hole, which is arranged along the axial direction of the outer sheath; The operating handle has one end located outside the housing and the other end passing through the limiting hole and fixedly connected to the traction wheel; The traction wheel can be driven to rotate circumferentially by pulling the operating handle, thereby moving the traction line; A fixed handle is fixedly connected to the outside of the housing and is positioned opposite to the operating handle.

[0019] Preferably, the traction wheel is provided with a return spring for returning the traction wheel to its initial position.

[0020] Preferably, a sealing plate is provided at the end of the housing that is connected to the water inlet / outlet connector; The sealing plate has two traction wire holes, through which the traction wire passes.

[0021] A prostate enucleator, comprising: The sheath is tubular; A flexible tube, one end of which is fixedly connected to the sheath, and the other end has an end plate. Two traction lines are arranged at relatively intervals. One end of each line is fixedly connected to the end plate or the flexible tube, and the other end can be pulled to bend the flexible tube to one side and change the angle of the end plate.

[0022] A prostate enucleator, comprising: The sheath is tubular; A flexible tube, one end of which is fixedly connected to the sheath; The front end is fixedly connected to the other end of the flexible tube at one end, and an end plate is provided at the other end of the front end. Two traction lines are arranged at relatively intervals. One end of each line is fixedly connected to the flexible tube or the front end, and the other end can be pulled to bend the flexible tube to one side and change the angle of the end plate.

[0023] Preferably, the prostate enucleator further includes: The inlet pipe is disposed within the cavity formed by the sheath and the flexible tube; The water outlet pipe is disposed within the cavity formed by the sheath and the flexible tube; The end plate is provided with a water inlet and a water outlet, the water inlet pipe is connected to the water inlet, and the water outlet pipe is connected to the water outlet.

[0024] The beneficial effects of this invention are: The prostate enucleator provided by this invention, through the combination of a flexible segment and a traction line, enables the camera to adjust the field of view without relying on the lever action of a rigid endoscope, reducing the pushing, shearing and squeezing forces on the sphincter; it also improves the access method to the Apex region, making the enucleation process more in line with the principle of anatomical protection.

[0025] The prostate enucleator provided by this invention is equipped with a water inlet channel and a drainage channel, which can flush the prostate during the operation and remove water in a timely manner. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the prostate enucleation endoscope described in this invention.

[0027] Figure 2 This is a schematic diagram of the connection structure between the front end and the flexible segment described in this invention.

[0028] Figure 3 This is a schematic axial cross-sectional view of the prostate enucleator described in this invention.

[0029] Figure 4 This is a schematic diagram of the inlet / outlet water connector described in this invention.

[0030] Figure 5 This is a schematic diagram of the external structure of the traction mechanism described in this invention.

[0031] Figure 6 This is a schematic diagram of the connection structure of the traction wheel, traction line and operating handle described in this invention. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0033] like Figure 1-6 As shown, the present invention provides a prostate enucleation endoscope, which mainly includes: an inner sheath 110, an outer sheath 120, a flexible segment 130, a front end 140, a traction mechanism 150, a traction cable 160, and an inlet / outlet water connector 170.

[0034] The inner sheath 110 is cylindrical. The outer sheath 120 is cylindrical and coaxially sleeved on the inner sheath 110. The flexible segment 130 includes an inner flexible tube 131 and an outer flexible tube 132 coaxially arranged.

[0035] In one embodiment, the front end portion 140 is only provided with an end plate 143, meaning the front end of the flexible segment 130 is directly connected to the end plate 143. The inner sheath 110 and the inner flexible tube 131 are coaxially fixedly connected to form a first tube body, with a first cavity 101 formed inside the first tube body. The outer sheath 120 and the outer flexible tube 132 are coaxially fixedly connected to form a second tube body, with a second cavity 102 formed between the second tube body and the first tube body. The front end portion 140 is fixedly connected to the free ends of the inner flexible tube 131 and the outer flexible tube 132, simultaneously sealing the first cavity 101 and the second cavity 102. The end plate 143 is inclined relative to the radial plane of the outer flexible tube 132. A camera, a light source, and an ablation mechanism are embedded in the end plate 143. The ablation mechanism 146 uses a laser or electrodes to dissect the prostate gland.

[0036] Multiple front-end water inlets 147 are formed on the end plate 143 and located at the center of the end plate 143, and the front-end water inlets 147 communicate with the first cavity 101. Multiple water outlets 148 are formed on the outer flexible tube 132 and communicate with the second cavity 102. The multiple water outlets 148 are arranged in a circumferential array along the outer flexible tube 132.

[0037] In one embodiment, both the flexible inner tube 131 and the flexible bend 132 are made of corrugated pipe.

[0038] In another embodiment, the flexible inner tube 131 is a corrugated tube, and the flexible outer tube 132 is a non-corrugated flexible tube, such as a silicone tube.

[0039] In another embodiment, both the flexible inner tube 131 and the outer flexible bend 132 are made of non-corrugated flexible tubes, such as silicone tubes.

[0040] As a preferred embodiment, the front end portion 140 includes an inner tube 141, an outer tube 142, and an end plate 143, with the inner tube 141 and outer tube 142 coaxially arranged. The inner sheath 110, inner flexible tube 131, and inner tube 141 are coaxially arranged, and the inner sheath 110 and inner tube 141 are respectively fixedly connected to both ends of the inner flexible tube 131. The inner sheath 110, inner flexible tube 131, and inner tube 141 form a first tube body, and a first cavity 101 is formed inside the first tube body. The outer sheath 120, outer flexible tube 132, and outer tube 142 are coaxially arranged, and the outer sheath 120 and outer tube 142 are respectively fixedly connected to both ends of the outer flexible tube 132. The outer sheath 120, outer flexible tube 132, and outer tube 142 form a second tube body, and a second cavity 102 is formed between the second tube body and the first tube body.

[0041] An end plate 143 is fixedly connected to the free ends (front ends) of the inner tube 141 and the outer tube 142, simultaneously sealing the first cavity 101 and the second cavity 102. The end plate 143 is inclined relative to the radial plane of the outer tube 142. A camera 144, a light source 145, and an ablation mechanism 146 are embedded in the end plate 143. The ablation mechanism 146 uses a laser or electrodes to dissect the prostate gland.

[0042] Multiple front-end water inlets 147 are formed on the end plate 143 and located at the center of the end plate 143, and the front-end water inlets 147 communicate with the first cavity 101. Multiple water outlets 148 are formed on the outer tube 142 and communicate with the second cavity 102. The multiple water outlets 148 are arranged in a circumferential array along the outer tube 142.

[0043] An inner tube 141 and an outer tube 142 are provided at the front end 140, and a water outlet 148 is formed on the outer tube 142. The inner tube 141 and outer tube 142 of this structure can be made of non-flexible material to ensure that liquid can be smoothly discharged through the water outlet 148. One end of the inlet / outlet connector 170 is detachably connected to the free end (end) of the inner sheath 110 and the outer sheath 120. The inlet / outlet connector 170 includes: an inner connector tube 171, an outer connector tube 172, and an annular baffle 173.

[0044] Both the inner tube 171 and the outer tube 172 of the connector are circular tubes, with the outer tube 172 coaxially sleeved on the inner tube 171. The inner tube 171 communicates with the inner sheath 110, forming a seal at the connection point, while the outer tube 172 communicates with the outer sheath 120, also forming a seal at the connection point. An annular partition 173 is fixedly connected within the annular cavity between the inner tube 171 and the outer tube 172, axially dividing the annular cavity into an inlet annular cavity 170a and an outlet annular cavity 170b. The outlet annular cavity 170b communicates with the second cavity 102. An inlet 174 is located on the outer tube 172 and communicates with the inlet annular cavity 170a; an outlet 175 is located on the outer tube 172 and communicates with the outlet annular cavity 170b. Multiple end water inlet holes 176 are provided on the inner tube 171 of the connector corresponding to the water inlet annular cavity 170a. The end water inlet holes 176 are connected to the first cavity 101. The multiple end water inlet holes 176 are arranged in a circumferential array along the inner tube 171 of the connector.

[0045] The flushing water enters the annular inlet cavity 170a through the inlet 174, then enters the inner tube 171 of the connector through the end inlet hole 176, and then sprays out from the front inlet hole 147 through the first cavity. The fluid generated at the surgical site enters the second cavity 102 through the outlet hole 148, and then flows out through the outlet annular cavity 170b and the outlet 175.

[0046] The traction mechanism 150 is located at the other end of the inlet / outlet water connector 170. In this embodiment, the traction mechanism 150 includes: a housing 151, a traction wheel 152, and an operating handle 153.

[0047] The housing 151 has a cavity, and one end of the housing 151 is detachably connected to the other end of the inlet / outlet connector 170. The traction wheel 152 is rotatably connected to the inner wall of the housing 151 via a central shaft. In one embodiment, two traction lines 160 are both disposed in the first cavity 101. One end of the traction line 160 is fixedly connected to the connection between the inner tube 141 and the inner flexible tube 131, and the other end extends to the outside of the inner sheath 110, passes through the connector inner tube 171, and connects to both sides of the circumference of the traction wheel 152. The two traction lines 160 are symmetrically arranged. A limiting hole 154 is provided on one side of the housing 151, and the limiting hole 154 is arranged along the axial direction of the outer sheath 120. One end of the operating handle 153 is located outside the housing 151, and the other end passes through the limiting hole 154 and is fixedly connected to the periphery of the traction wheel 152. The operating handle can reciprocate along the length of the limiting hole 154. Pulling the operating handle 153 drives the traction wheel 152 to rotate circumferentially, causing the traction wires 160 to move. One traction wire 160 moves in the same direction as the operating handle 153, while the other traction wire 160 moves in the opposite direction relative to the operating handle 153. When one traction wire 160 moves away from the front end, it shortens the inner flexible tube 131 and outer flexible tube 132 on the same side, while the inner flexible tube 131 and outer flexible tube 132 on the opposite side lengthens and bends towards the shortened inner flexible tube 131 and outer flexible tube 132; this causes the front end 140 to bend, changing the angle of the end plate 143 of the front end 140; thus, the field of view of the camera 144 can be adjusted without relying on the lever action of the rigid endoscope. By rotating the resection endoscope, only two traction wires 160 are needed to achieve omnidirectional adjustment of the field of view of the entire surgical area. In this embodiment, when the operating handle 153 is in the middle position of the limiting hole 154, the two traction lines 160 are in the same position, and the flexible section 130 is in an uncompressed state.

[0048] In another embodiment, the traction wheel 152 is driven by a micro motor, which can improve the control accuracy of the traction line.

[0049] In this embodiment, the traction wire 160 is a metal wire covered with an insulating layer. The traction wire 160 can also be made of other insulating materials.

[0050] As a preferred embodiment, the present invention also includes a fixed handle 155, which is fixedly connected to the outside of the housing 151 and is disposed opposite to the operating handle 153. The fixed handle 155 facilitates hand support for the operator, and the combination of the operating handle 153 and the fixed handle 155 makes it easier to control the traction wheel 152.

[0051] As a further preferred option, a return spring is provided on the traction wheel 152 to return the traction wheel 152 to its initial position (i.e., the operating handle returns to the middle position of the limit hole 154).

[0052] A sealing plate 151a is provided at one end of the housing 151 that connects to the inlet / outlet water connector 170. The sealing plate 151a has two traction cable holes, through which the traction cables 160 pass respectively. Sealing rings are provided in the traction cable holes to prevent water from flowing into the housing 152.

[0053] In this embodiment, the sealing plate 151a is also provided with a cable through hole 156. The cables of the camera 144, the light source 145, and the ablation mechanism 146 pass through the first cavity 101 and enter the housing 151 through the cable through hole 156. The cable through hole 156 and the cable are sealed with a sealing ring or sealant. An end cap 157 is provided at the other end of the housing 151. The end cap 157 has a through hole, through which the cable exits.

[0054] In another embodiment, both traction lines 160 are disposed in the second cavity 102. One end of each traction line 160 is fixedly connected to the connection between the inner tube 141 and the inner flexible tube 131, and the other end extends to the outside of the outer sheath 120 and is connected to both sides of the circumferential traction wheel 152.

[0055] In another embodiment, both traction lines 160 are disposed in the second cavity 102. One end of the traction line 160 is fixedly connected to the connection between the outer tube 141 and the outer flexible tube 132, and the other end extends to the outside of the outer sheath 120 and is connected to both sides of the circumferential traction wheel 152.

[0056] The traction line 160 can also be connected to the end plate 143, the front end 140, or the flexible section 130. The connection position needs to meet the bending requirements of the flexible section 130.

[0057] As a preferred embodiment, the present invention also provides a prostate enucleation endoscope, the main body of which is a single-layer tube structure. It mainly includes: a sheath, a flexible tube, a traction suture, and a traction mechanism.

[0058] The sheath is tubular; one end of a flexible tube is fixedly connected to the sheath, and the flexible tube and the interior of the sheath communicate to form a cavity. The other end of the flexible tube has an end plate. Two traction wires, spaced apart, are placed within the cavity formed by the flexible tube and the sheath. One end of each traction wire is fixedly connected to the end plate or to the flexible tube, and the other end can be pulled, allowing the flexible tube to bend to one side and change the angle of the end plate. A camera, a light source, and an ablation mechanism are embedded in the end plate. The ablation mechanism uses a laser or electrodes to dissect the prostate gland. In another embodiment, a front end portion is also provided. The front end portion is a rigid tube structure, with one end of the flexible tube fixedly connected to the sheath body and the other end fixedly connected to one end of the front end portion. An end plate is provided at the other end of the front end portion. Two traction lines arranged at relatively intervals are disposed within the cavity formed by the flexible tube and the sheath body. One end of each traction line is fixedly connected to the flexible tube or the front end portion, respectively, and the other end can be pulled, allowing the flexible tube to bend to one side and change the angle of the end plate.

[0059] Flexible tubes can be made of corrugated tubes or non-corrugated flexible tubes, such as silicone tubes.

[0060] The aforementioned prostate enucleator further includes an inlet pipe and an outlet pipe. The inlet pipe is disposed within the cavity formed by the sheath and the flexible tube; the outlet pipe is also disposed within the cavity formed by the sheath and the flexible tube. An inlet hole and an outlet hole are provided on the end plate, with the inlet pipe communicating with the inlet hole and the outlet pipe communicating with the outlet hole. Irrigation water enters through the inlet pipe and is sprayed out from the inlet hole to irrigate the surgical site. Fluid generated at the surgical site enters the outlet pipe through the outlet hole and is discharged. The inlet and outlet pipes are connected to the water inlet system and the water outlet system, respectively, to control the water inlet and outlet.

[0061] The form of the inlet and outlet pipes is not specifically limited. They can be set as separate pipes independent of the flexible pipe and sheath, or they can be obtained by separating the inner cavities of the flexible pipe and sheath.

[0062] When the main body of the resection mirror is a single-layer tube structure, the form of the traction mechanism is the same as that of the traction mechanism for a double-layer tube structure.

[0063] The prostate enucleator provided by this invention, through the combination of a flexible segment, traction line, and traction mechanism, allows the camera to adjust its field of view without relying on the lever action of a rigid endoscope, reducing the pushing, shearing, and squeezing forces on the sphincter. It also improves the access method to the Apex region, making the enucleation process more anatomically compliant. Furthermore, this invention allows the tip to bend at a small angle to conform to the anatomical passage, making the access path more consistent with the curvature of the natural cavity and reducing abnormal stretching of the sphincter.

[0064] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A prostate enucleation endoscope, characterized in that, include: The inner sheath is tubular; The outer sheath is tubular and coaxially fitted onto the inner sheath; The flexible segment includes an inner flexible tube and an outer flexible tube arranged coaxially; one end of the inner flexible tube is fixedly connected to the inner sheath, and one end of the outer flexible tube is fixedly connected to the outer sheath; The other end of the flexible segment has an end plate. Two traction lines are arranged at relatively intervals. One end of each line is fixedly connected to the end plate or the flexible segment, and the other end can be pulled to bend the flexible segment to one side and change the angle of the end plate.

2. The prostate enucleator according to claim 1, characterized in that, The inner sheath and the inner flexible tube are coaxially and fixedly connected to form a first tube body, and a first cavity is formed inside the first tube body; the outer sheath and the outer flexible tube are coaxially and fixedly connected to form a second tube body, and a second cavity is formed between the second tube body and the first tube body; The end plate is provided with a plurality of front water inlet holes, which are connected to the first cavity.

3. The prostate enucleator according to claim 2, characterized in that, Also includes: Multiple water outlets are provided on the outer flexible tube, and the water outlets are connected to the second cavity.

4. A prostate enucleation endoscope, characterized in that, include: The inner sheath is tubular; The outer sheath is tubular and coaxially fitted onto the inner sheath; The flexible segment includes an inner flexible tube and an outer flexible tube arranged coaxially; one end of the inner flexible tube is connected to the inner sheath, and one end of the outer flexible tube is connected to the outer sheath; The front end has one end fixedly connected to the other end of the inner flexible tube and the outer flexible tube, and the other end of the front end is provided with an end plate. Two traction lines are arranged at relatively intervals. One end of each line is fixedly connected to the flexible segment or the front end, and the other end can be pulled to bend the flexible segment to one side and change the angle of the end plate.

5. The prostate enucleator according to claim 4, characterized in that, The front end includes an inner tube, an outer tube, and an end plate, with the inner tube and the outer tube arranged coaxially; The inner sheath, the inner flexible tube, and the inner tube are coaxially and fixedly connected in sequence to form a first tube body, and the interior of the first tube body forms a first cavity; the outer sheath, the outer flexible tube, and the outer tube are coaxially and fixedly connected in sequence to form a second tube body, and the second tube body and the first tube body form a second cavity; the end plate is fixedly connected to the extended ends of the inner tube and the outer tube. Multiple water outlets are provided on the outer pipe, and the water outlets are connected to the second cavity.

6. The prostate enucleator according to claim 5, characterized in that, The end plate is provided with a plurality of front water inlet holes, which are connected to the first cavity.

7. The prostate enucleator according to claim 3 or 6, characterized in that, Also includes: A water inlet / outlet connector, one end of which is detachably connected to the free end of the outer sheath; the water inlet / outlet connector includes: Inner tube of the connector; The outer tube of the connector is coaxially sleeved on the inner tube of the connector; An annular baffle plate is fixedly connected in the annular cavity between the inner tube and the outer tube of the connector, dividing the annular cavity into an inlet annular cavity and an outlet annular cavity. The annular cavity for water outlet is connected to the second cavity. The inlet is located on the outer pipe of the connector and communicates with the inlet annular cavity. The water outlet is located on the outer pipe of the connector and communicates with the water outlet annular cavity; The connector inner tube at the water inlet annular cavity is provided with multiple end water inlet holes, which are connected to the first cavity.

8. The prostate enucleator according to claim 7, characterized in that, It also includes a traction mechanism for pulling the two traction lines, which includes: The housing is detachably connected to the other end of the inlet / outlet connector; A traction wheel, which is rotatably connected within the housing; The two traction lines are symmetrically fixedly connected to both sides of the traction wheel in the circumferential direction; the housing has a limiting hole, which is arranged along the axial direction of the outer sheath; The operating handle has one end located outside the housing and the other end passing through the limiting hole and fixedly connected to the traction wheel; The traction wheel can be driven to rotate circumferentially by pulling the operating handle, thereby moving the traction line; A fixed handle is fixedly connected to the outside of the housing and is positioned opposite to the operating handle.

9. The prostate enucleator according to claim 8, characterized in that, The traction wheel is equipped with a return spring, which is used to return the traction wheel to its initial position.

10. The prostate enucleator according to claim 9, characterized in that, A sealing plate is provided at one end of the shell that is connected to the inlet / outlet water connector; The sealing plate has two traction wire holes, through which the traction wire passes.

11. A prostate enucleation endoscope, characterized in that, include: The sheath is tubular; A flexible tube, one end of which is fixedly connected to the sheath, and the other end has an end plate. Two traction lines are arranged at relatively intervals. One end of each line is fixedly connected to the end plate or the flexible tube, and the other end can be pulled to bend the flexible tube to one side and change the angle of the end plate.

12. A prostate enucleation endoscope, characterized in that, include: The sheath is tubular; A flexible tube, one end of which is fixedly connected to the sheath; The front end is fixedly connected to the other end of the flexible tube at one end, and an end plate is provided at the other end of the front end. Two traction lines are arranged at relatively intervals. One end of each line is fixedly connected to the flexible tube or the front end, and the other end can be pulled to bend the flexible tube to one side and change the angle of the end plate.

13. The prostate enucleator according to claim 11 or 12, characterized in that, Also includes: The inlet pipe is disposed within the cavity formed by the sheath and the flexible tube; The water outlet pipe is disposed within the cavity formed by the sheath and the flexible tube; The end plate is provided with a water inlet and a water outlet, the water inlet pipe is connected to the water inlet, and the water outlet pipe is connected to the water outlet.

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