A seminal vesiculoscope

Abstract

The application discloses a seminal vesicle mirror and belongs to the field of medical instruments, which comprises a seminal vesicle mirror main body, the seminal vesicle mirror main body has an execution end part and an operation end part, the execution end part is provided with a lens and an illuminating element, and the seminal vesicle mirror main body is characterized in that further comprising: an electrode, partially penetrating the seminal vesicle mirror main body and extending out of the execution end part; a guide sheath, slidingly sleeved to the outer wall of the seminal vesicle mirror main body, the guide sheath has a connecting end part and a deformation end part, the connecting end part is connected with the seminal vesicle mirror main body to limit the relative movement between the guide sheath and the seminal vesicle mirror main body; a cavity is arranged between the inner wall and the outer wall of the guide sheath, the deformation end part is provided with an inclined surface, the cavity is open at the inclined surface, and an elastic membrane is arranged between the deformation end part and the cavity; the deformation end part is shovel-shaped when the elastic membrane is in a natural state; and the deformation end part is changed from shovel-shaped to cylindrical-shaped in the process that the elastic membrane is deformed outwards of the inclined surface. Through the above arrangement, the seminal vesicle mirror can safely enter the ejaculatory duct and effectively stop bleeding of the internal bleeding point of the seminal vesicle.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a seminal vesicle endoscope. Background Technology

[0002] Seminal vesiculoscopy is an important minimally invasive procedure for treating male reproductive system diseases such as hematospermia and seminal vesicle stones. Existing technologies include visual dilatation seminal vesiculoscopy components, such as the one disclosed in CN116035519A, which achieves visual entry through a dilatation sheath with a visible channel and uses a series of dilatation sheaths of different sizes to gradually dilate the ejaculatory duct. However, this technology has the following shortcomings: First, its therapeutic function mainly relies on surgical instruments (such as lithotripsy fiber optics) carried by the subsequently inserted seminal vesiculoscopy for flushing or lithotripsy, lacking a direct and effective hemostatic method for the root cause of hematospermia—abnormal blood vessel bleeding within the seminal vesicle; second, although the tip of the dilatation sheath is flat or conical to facilitate opening the ejaculatory duct opening, its fixed structure poses a risk of scratching the duct wall when passing through the fragile and concealed ejaculatory duct.

[0003] Therefore, there is an urgent need in the field for a seminal vesicle endoscope that can safely enter the ejaculatory duct and perform precise, minimally invasive treatment of bleeding points inside the seminal vesicle. Summary of the Invention

[0004] The existing technology has the above-mentioned shortcomings, and the purpose of this invention is to solve the following technical problems:

[0005] How to provide a seminal vesicle endoscope device capable of electrocoagulating and stopping bleeding vessels within the seminal vesicle, thereby effectively treating hematospermia? How to overcome the limitations of existing seminal vesicle endoscopes or dilator sheaths with their single function, enabling them to effectively open the hidden ejaculatory duct opening while preventing damage to the ejaculatory duct during insertion and operation?

[0006] The present invention specifically provides the following technical solution: a seminal vesicle endoscope, comprising: a seminal vesicle endoscope body, the seminal vesicle endoscope body having an execution end and an operating end, the execution end being provided with a lens and an illumination element. The seminal vesicle endoscope further includes:

[0007] An electrode is partially inserted into the body of the seminal vesiculoscope and extends out of the execution end. The electrode is connected to a power source via a lead wire. When energized, the electrode electrocoagulates and stops bleeding in abnormal blood vessels.

[0008] A guide sheath is slidably fitted onto the outer wall of the seminal vesiculoscope body. The guide sheath has a connecting end and a deformable end. When the connecting end is connected to the seminal vesiculoscope body, it restricts the relative movement between the guide sheath and the seminal vesiculoscope body. The connection method between the connecting end and the seminal vesiculoscope body is a bolt connection. A cavity is provided between the inner wall and the outer wall of the guide sheath. The deformable end is provided with an inclined surface. The cavity has an opening at the inclined surface. An elastic membrane is provided between the deformable end and the cavity. When the elastic membrane is in its natural state, the deformable end is shovel-shaped and used to open the ejaculatory duct opening. During the process of the elastic membrane deforming towards the inclined surface, the deformable end deforms from a shovel shape to a cylindrical shape.

[0009] Furthermore, the outer wall of the connecting end is provided with a pressure port, and a connecting channel is provided between the outer wall and the inner wall of the guide sheath. The connecting channel connects the cavity and the pressure port. When the airflow moves into the cavity through the pressure port, it drives the elastic membrane to detach from its natural state. By providing a pressure port connecting the cavity, the airflow is pushed into the cavity at the connecting end of the guide sheath that is outside the body, thereby changing the deformation state of the elastic flap and controlling the switching of the deformed end between two forms.

[0010] Furthermore, the perpendicular line of the inclined plane forms an acute angle with the central axis of the guide sheath, with the tip pointing towards the connecting end; there are two inclined planes, which are equally spaced and arranged in a circular array around the central axis of the guide sheath, so that the deformable end is shovel-shaped; the cavity is arranged along the central axis of the guide sheath, and a cylindrical piston is slidably fitted inside the cavity. When the cylindrical piston is in an initial position, the elastic membrane is in its natural state; as the cylindrical piston moves along the central axis of the guide sheath toward the deformable end, it expands the elastic membrane radially along the central axis of the guide sheath, so that the outer wall of the elastic membrane is flush with the outer wall of the guide sheath. When the cylindrical piston moves to abut against the inner wall of the cavity, the inclined plane is pushed outward by the cylindrical piston, causing the deformable end to deform from a shovel shape into a cylindrical shape.

[0011] Furthermore, the pneumatic interface is equipped with a slider piston and an elastic element. The two ends of the elastic element are respectively connected to the inner wall of the pneumatic interface and the slider piston. When the elastic element is in its natural state, the elastic membrane is also in its natural state. When the slider piston moves towards the inner wall of the guide sheath, it compresses the elastic element and causes the airflow within the pneumatic interface to move towards the cavity, causing the elastic membrane to deform and break free from its natural state. By providing a slider piston slidably connected within the pneumatic interface and a cylindrical piston slidably connected within the cavity, the space between the pneumatic interface and the cavity is dynamically sealed. This allows for control of the movement of the cylindrical piston within the cavity by adjusting the depth of the slider piston within the pneumatic interface, thereby indirectly controlling the deformation at the deformable end.

[0012] Furthermore, the pneumatic interface is bolted with a knob, the end of which faces the guide sheath and contacts the slider piston; when the knob rotates around its own central axis and moves into the pneumatic interface, it squeezes the slider piston, causing the deformable end to deform from a shovel shape to a cylindrical shape.

[0013] Furthermore, the seminal vesicle endoscope body includes an interconnected tubular cavity and an endoscope tube; a sheath tube is also provided between the deformed end and the connecting end of the guide sheath, and a connecting valve is provided on the outer wall of the connecting end; the sheath tube is sleeved outside the endoscope tube, and the inner diameter of the sheath tube is larger than the outer diameter of the endoscope tube; when the connecting valve is open and the guide sheath enters the ejaculatory duct, the two sides of the connecting valve form a fluid suction and infusion passage. When the connecting valve is closed, the suction and infusion passages are sealed.

[0014] Furthermore, the seminal vesicle endoscope body has an internal insulating channel, one end of which opens at the execution end, and the other end of which extends out of the outer wall of the tubular connecting cavity. A lead wire electrically connected to an electrode is disposed within the insulating channel. When the electrode contacts the wound and the lead wire is energized, current flows through the surrounding tissue of the wound, causing tissue proteins to denature and coagulate, thereby sealing the bleeding vessels and treating hematospermia.

[0015] Furthermore, the actuating end is the end of the endpiece tube that faces away from the connecting cavity along its central axis, and the operating end is the end of the connecting cavity that faces away from the endpiece tube along its central axis. The interconnected connecting cavity and the endpiece tube share a main channel for inserting the lens and illumination element, and the main channel passes through the actuating end and the operating end. The connecting cavity also has two connecting valves, which are respectively used to connect the infusion device and the negative pressure suction device to facilitate cleaning of the connecting cavity. Alternatively, in some embodiments, the endpiece tube is also provided with channels corresponding to the connecting valves for rinsing and absorbing blood, tissue debris, or semen in front of the lens.

[0016] Furthermore, a traction line is provided inside the endoscope tube, one end of which is connected to the execution end. A rotating shaft is also rotatably connected inside the conduit cavity, and the other end of the traction line is connected to the rotating shaft. There are at least two traction lines. When the rotating shaft rotates around its own central axis, it drives the execution end of the endoscope tube exposed outside the guide sheath to rotate in the same direction.

[0017] Furthermore, the rotating shaft extends outside the pipe connecting cavity and is fixedly connected to a limiting rocker arm.

[0018] The beneficial effects of this invention are:

[0019] 1. This invention features a scope with electrodes positioned within the lens's field of view. Physicians can precisely locate bleeding points and perform electrocoagulation using real-time images captured by the lens, thereby fundamentally resolving hematospermia by burning off abnormal blood vessels.

[0020] 2. The guide sheath of the present invention is provided with a deformable end that has both a prying function and a damage prevention function, which can adapt to complex physiological structures. When the guide sheath needs to enter the ejaculatory duct, it deforms into a shovel shape to pry open the ejaculatory duct opening; after the bevel has fully entered the ejaculatory duct, the deformable end switches to a cylindrical shape to protect the patient's physiological tissues, effectively reducing the risk of complications such as ejaculatory duct perforation and bleeding. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of an overall structure of the present invention when the deformed end is cylindrical;

[0023] Figure 2 This is a front view of the present invention when the deformed end is cylindrical;

[0024] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along direction A.

[0025] Figure 4 for Figure 3 A magnified view of the structure at point C in the middle;

[0026] Figure 5 for Figure 3 A magnified view of the structure at point D in the middle;

[0027] Figure 6 for Figure 3 A magnified view of the structure at point E in the middle;

[0028] Figure 7 for Figure 3 A magnified view of the structure at point F in the middle;

[0029] Figure 8 This is a right view of the present invention when the deformed end is cylindrical;

[0030] Figure 9 for Figure 8 A magnified view of the local structure at point G;

[0031] Figure 10 for Figure 8 A magnified view of the structure at point H in the middle;

[0032] Figure 11 for Figure 2 A schematic diagram of the cross-sectional structure along the B direction;

[0033] Figure 12 for Figure 11 A magnified view of the structure at point J in the middle;

[0034] Figure 13 This is a schematic diagram of the structure of the end of the mirror tube swinging during the invention.

[0035] Figure 14 This is a schematic diagram of an overall structure of the present invention when the deformed end is shovel-shaped;

[0036] Figure 15 for Figure 14 A magnified view of the structure at point K in the middle;

[0037] Figure 16 This is a left view of the present invention when the deformed end is shovel-shaped;

[0038] Figure 17 for Figure 16 A magnified view of the structure at point L in the middle;

[0039] Figure 18 for Figure 16 A schematic diagram of the cross-sectional structure of the mirror sheath in the P direction;

[0040] Figure 19 for Figure 18 A magnified view of the structure at point M in the middle;

[0041] Figure 20 for Figure 18 A magnified view of the local structure at point N;

[0042] In the diagram, 1. Seminal vesicle endoscope body; 11. Endoscope tube; 111. Actuating end; 112. Lens; 113. Illumination element; 114. Electrode; 1141. Lead wire; 115. Traction wire; 12. Pipe connecting cavity; 121. Operating end; 122. Connecting valve two; 123. Main channel; 124. Rotating shaft; 125. Limiting rocker; 126. Connector; 13. Insulating channel; 2. Guide sheath; 21. Deformable end; 211. Inclined surface; 212. Elastic membrane; 213. Cavity; 214. Cylinder piston; 215. Conical end; 22. Connecting end; 221. Air pressure interface; 222. Sliding piston; 223. Elastic element; 224. Knob; 225. Connecting channel; 226. Connecting valve one; 23. Sheath tube. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention are clearly and completely described below through specific examples. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] A seminal vesicle endoscope, such as Figures 1-19 As shown, it includes: a seminal vesicle endoscope body 1, which has an execution end 111 and an operation end 121. The execution end 111 is provided with a lens 112 and an illumination element 113. The seminal vesicle endoscope also includes:

[0045] Electrode 114 is partially inserted into the main body 1 of the seminal vesiculoscope and extends out of the execution end 111. Electrode 114 is connected to a power source through a lead wire 1141. Electrode 114, when energized, electrocoagulates and stops bleeding in abnormal blood vessels.

[0046] The guide sheath 2 is slidably sleeved on the outer wall of the seminal vesiculoscope body 1. The guide sheath 2 has a connecting end 22 and a deformable end 21. When the connecting end 22 is connected to the seminal vesiculoscope body 1, it restricts the relative movement between the guide sheath 2 and the seminal vesiculoscope body 1. The connection method between the connecting end 22 and the seminal vesiculoscope body 1 is a bolt connection. A cavity 213 is provided between the inner wall and the outer wall of the guide sheath 2. The deformable end 21 is provided with an inclined surface 211. The cavity 213 has an opening at the inclined surface 211. An elastic membrane 212 is provided between the deformable end 21 and the cavity 213. When the elastic membrane 212 is in its natural state, the deformable end 21 is shovel-shaped and used to open the ejaculatory duct opening. During the process of the elastic membrane 212 deforming into the inclined surface 211, the deformable end 21 deforms from a shovel shape to a cylindrical shape.

[0047] In some embodiments of this application, such as Figures 1-19As shown, the outer wall of the connecting end 22 is provided with a pressure port 221, and a connecting channel 225 is provided between the outer wall and the inner wall of the guide sheath 2. The connecting channel 225 connects the cavity 213 and the pressure port 221. When the airflow moves into the cavity 213 through the pressure port 221, it drives the elastic membrane 212 to detach from its natural state. By providing the pressure port 221 connecting the cavity 213, the airflow is pushed into the cavity 213 at the connecting end 22 where the guide sheath 2 is placed outside the body, which can change the deformation state of the elastic valve and control the switching of the deformable end 21 between two forms. Specifically, during the process of the guide sheath 2 entering the seminal vesicle through the patient's urethra and approaching the ejaculatory duct opening, the cylindrical shape of the deformable end 21 is maintained by pushing the airflow into the cavity 213, so as to avoid physical damage to the surrounding tissues along the operating path during the movement of the guide sheath 2. When the physician observes the ejaculatory duct opening through the seminal vesicle endoscope in the guide sheath 2 or determines the location of the ejaculatory duct opening by other means, the airflow pushed into the cavity 213 is moved towards the air pressure port 221 to control the elastic membrane 212 to return to its natural state, so that the cylindrical deformable end 21 is deformed into a shovel shape, so as to perform the prying operation on the ejaculatory duct opening.

[0048] In some embodiments of this application, such as Figures 1-19As shown, the perpendicular line of the inclined surface 211 forms an acute angle with the central axis of the guide sheath 2, with the tip pointing towards the connecting end 22. There are two inclined surfaces 211, which are equally spaced and arranged in a circular array around the central axis of the guide sheath 2, so that the deformable end 21 is shovel-shaped. The cavity 213 is arranged along the central axis of the guide sheath 2, and a cylindrical piston 214 is slidably fitted inside the cavity 213. When the cylindrical piston 214 is in an initial position, the elastic membrane 212 is in its natural state. As the cylindrical piston 214 moves along the central axis of the guide sheath 2 towards the deformable end 21, it expands the elastic membrane 212 radially along the central axis of the guide sheath 2, so that the outer wall of the elastic membrane 212 is flush with the outer wall of the guide sheath 2. When the cylindrical piston 214 moves to abut against the inner wall of the cavity 213, the inclined surface 211 is pushed outward by the cylindrical piston 214, so that the deformable end 21 is deformed from a shovel shape into a cylindrical shape. When the deformable end 21 is shovel-shaped and the execution end 111 of the seminal vesicle endoscope does not extend through the deformable end 21, the two inclined surfaces 211 and the channel inside the guide sheath 2 give the flat deformable end 21 two symmetrical conical ends 215. Simultaneously, the junction of the inclined surface 211 with the inner wall of the guide sheath 2 has sharp edges, and the junction of the inclined surface 211 with the outer wall of the guide sheath 2 also has sharp edges, so that the conical ends can pry open the closed ejaculatory duct opening. A single conical end 215 or a flat shovel-shaped structure composed of two conical ends 215 can easily be inserted into the gap of the closed duct opening, thus facilitating the opening of the closed ejaculatory duct. However, when the flat deformable end 21 enters the ejaculatory duct, the sharp edges on the conical ends 215 risk damaging the inner wall of the ejaculatory duct. Therefore, when the inclined surface 211 enters the ejaculatory duct, disengaging from its initial position and expanding the inclined surface 211 into an arc-shaped cylindrical piston 214 can eliminate the conical ends 215. This ensures that only the cylindrical sidewalls and the circular top surface of the continuing-moving guide sheath 2 contact the inner wall of the ejaculatory duct, thereby effectively reducing the risk of trauma to the inner wall of the ejaculatory duct.

[0049] In some embodiments of this application, such as Figures 1-19As shown, a slider piston 222 and an elastic element 223 are provided inside the air pressure interface 221. The two ends of the elastic element 223 are connected to the inner wall of the air pressure interface 221 and the slider piston 222, respectively. When the elastic element 223 is in its natural state, the elastic membrane 212 is also in its natural state. When the slider piston 222 moves towards the inner wall of the guide sheath 2, it squeezes the elastic element 223 and causes the airflow in the air pressure interface 221 to move towards the cavity 213, causing the elastic membrane 212 to deform and break free from its natural state. By setting the slider piston 222, which is slidably connected in the air pressure interface 221, and the cylinder piston 214, which is slidably connected in the cavity 213, the space between the air pressure interface 221 and the cavity 213 is dynamically sealed. Thus, by moving the depth of the slider piston 222 in the air pressure interface 221, the movement of the cylinder piston 214 in the cavity 213 can be controlled, thereby indirectly achieving deformation control of the deformation end. The movement of the slider piston 222 is achieved by external force. By setting the elastic element 223, when the external force is removed, the elastic element 223 deforms to its natural state under its own elasticity and pushes the slider piston 222 back to its initial position, while making the deformed end 21 return to the shovel shape.

[0050] In some embodiments of this application, such as Figures 1-19 As shown, a knob 224 is bolted to the air pressure port 221. The end of the knob 224 facing the guide sheath 2 contacts the slider piston 222. When the knob 224 rotates around its own central axis and moves into the air pressure port 221, it squeezes the slider piston 222, causing the deformable end 21 to deform from a shovel shape to a cylindrical shape. The knob 224 has a rotational stroke, which limits the rotation angle of the knob 224. Specifically, the rotational stroke is no more than 180°. The rotational stroke is limited by the thread height inside the air pressure port 221. At the same time, the maximum deformation of the elastic element 223 also limits the rotational stroke of the knob 224. The physician can confirm the rotational stroke of the knob 224 by sensing the change in damping during the process of turning the knob 224.

[0051] In some embodiments of this application, such as Figures 1-19As shown, the seminal vesicle endoscope body 1 includes a communicating tube cavity 12 and an endoscope tube 11. A connector 126 is provided at the end of the communicating tube cavity 12 facing the endoscope tube 11 for insertion or bolt connection to the connecting end 22 of the guide sheath 2. A sheath tube 23 is also provided between the deformable end 21 of the guide sheath 2 and the connecting end 22. A connecting valve 226 is provided on the outer wall of the connecting end 22. The sheath tube 23 is sleeved outside the endoscope tube 11, and the inner diameter of the sheath tube 23 is larger than the outer diameter of the endoscope tube 11. When the connecting valve 226 is open and the guide sheath 2 enters the ejaculatory duct, the two sides of the connecting valve 226 form a fluid suction and infusion passage. When the connecting valve 226 is closed, the suction and infusion passages are sealed. The aspiration and irrigation operations are specifically implemented through the connection of the connecting valve 226 to the aspiration and irrigation device. During irrigation, the injected fluid is either saline solution or lubricant. Saline solution is used to flush blood and wounds within the ejaculatory duct during electrocoagulation, while lubricant further reduces the risk of trauma to the ejaculatory duct during dilation by the guide sheath 2. During aspiration, the aspirated fluid includes blood, semen, or tissue debris, thus maintaining a clear view in front of the seminal vesiculoscope and balancing the pressure within the ejaculatory duct. The connecting valve 226, which connects to the aspiration and irrigation device, facilitates timely flushing of bleeding points and absorption of fumes and debris generated during electrocoagulation hemostasis within the ejaculatory duct.

[0052] In some embodiments of this application, such as Figures 1-19 As shown, the seminal vesicle endoscope body 1 has an insulating channel 13 inside. One end of the insulating channel 13 opens at the execution end 111, and the other end of the insulating channel 13 extends out of the outer wall of the tube connecting cavity 12. A lead wire 1141 electrically connected to the electrode 114 is disposed inside the insulating channel 13. When the electrode 114 contacts the wound and the lead wire 1141 is energized, the current passes through the tissue surrounding the wound and denatures and coagulates the tissue proteins, thereby sealing the bleeding blood vessels and treating the symptoms of hematospermia.

[0053] In some embodiments of this application, such as Figures 1-19As shown, the execution end 111 is the end of the endoscope tube 11 facing away from the tubular connecting cavity 12 along its own central axis, and the operation end 121 is the end of the tubular connecting cavity 12 facing away from the endoscope tube 11 along its own central axis. The interconnected tubular connecting cavity 12 and endoscope tube 11 have a main channel 123 for inserting the lens 112 and the illumination element 113. The main channel 123 passes through the execution end 111 and the operation end 121. The illumination element 113 is specifically connected to a cold light source outside the seminal vesicle endoscope through an illumination optical fiber to guide the light generated by the cold light source through the optical fiber to provide safe illumination inside the seminal vesicle. The lens 112 is connected to an external image processing host through a data cable or optical fiber to transmit the image captured by the lens 112 to the host and further display it on a monitor, thereby improving surgical efficiency and safety by providing the physician with images inside the seminal vesicle. The tubing cavity 12 also has two connecting valves 122, which are used to connect the infusion device and the negative pressure suction device respectively, so as to facilitate cleaning of the tubing cavity 12. Alternatively, in some embodiments, the endoscope tube 11 is also provided with channels that are connected to the connecting valves 122 one by one, for rinsing and absorbing blood, tissue debris or semen in front of the lens 112.

[0054] In some embodiments of this application, such as Figures 1-19 As shown, a traction wire 115 is provided inside the endoscope tube 11. One end of the traction wire 115 is connected to the execution end 111. A rotating shaft 124 is also rotatably connected inside the pipe connecting cavity 12. The other end of the traction wire 115 is connected to the rotating shaft 124. There are at least two traction wires 115. When the rotating shaft 124 rotates around its own central axis, it drives the execution end 111 of the endoscope tube 11 exposed outside the guide sheath 2 to rotate in the same direction.

[0055] In some embodiments of this application, such as Figures 1-19 As shown, the rotating shaft 124 extends out of the tube connecting cavity 12 and is fixedly connected to a limiting rocker arm 125, so that medical staff can drive the rotating shaft 124 by pushing and pulling the limiting rocker arm 125 when holding the seminal vesicle endoscope body 1 for operation, thereby realizing the direction control of the end 111 of the traction line 115 and the end tube 11 at the end of the traction line 115.

Claims

1. A seminal vesicle endoscope, comprising a seminal vesicle endoscope body, the seminal vesicle endoscope body including a communicating cavity and an endoscope tube; the seminal vesicle endoscope body having an actuating end and an operating end, the actuating end being the end of the endoscope tube facing away from the communicating cavity along its own central axis, and the operating end being the end of the communicating cavity facing away from the endoscope tube along its own central axis; the actuating end is provided with a lens and an illumination element, characterized in that, Also includes: Electrodes are partially inserted into the body of the seminal vesicle endoscope and extend out of the actuating end; A guide sheath is slidably fitted onto the outer wall of the seminal vesiculoscope body. The guide sheath has a connecting end and a deformable end. When the connecting end is connected to the seminal vesiculoscope body, it restricts the relative movement between the guide sheath and the seminal vesiculoscope body. A cavity is provided between the inner and outer walls of the guide sheath. The deformable end is provided with an inclined surface. The cavity has an opening at the inclined surface. An elastic membrane is provided between the deformable end and the cavity. When the elastic membrane is in its natural state, the deformable end is shovel-shaped and used to open the ejaculatory duct opening. During the process of the elastic membrane deforming towards the inclined surface, the deformable end deforms from a shovel shape to a cylindrical shape.

2. The seminal vesicle endoscope according to claim 1, characterized in that, The outer wall of the connecting end is provided with a pneumatic interface, and a connecting channel is provided between the outer wall and the inner wall of the guide sheath. The connecting channel connects the cavity and the pneumatic interface. When the airflow moves into the cavity through the pneumatic interface, it drives the elastic membrane to break away from its natural state.

3. A seminal vesicle endoscope according to claim 2, characterized in that, The perpendicular line of the inclined plane forms an acute angle with the central axis of the guide sheath, with the tip pointing towards the connecting end; there are two inclined planes, which are equally spaced and arranged in a circular array around the central axis of the guide sheath, so that the deformable end is shovel-shaped; the cavity is arranged along the central axis of the guide sheath, and a cylindrical piston is slidably sleeved in the cavity; as the cylindrical piston moves along the central axis of the guide sheath toward the deformable end, it expands the elastic membrane radially along the central axis of the guide sheath, so that the outer wall of the elastic membrane is flush with the outer wall of the guide sheath.

4. A seminal vesicle endoscope according to claim 3, characterized in that, The pneumatic interface is equipped with a slider piston and an elastic element. The two ends of the elastic element are respectively connected to the inner wall of the pneumatic interface and the slider piston. When the elastic element is in its natural state, the elastic membrane is also in its natural state. When the slider piston moves toward the inner wall of the guide sheath, it squeezes the elastic element and causes the airflow in the pneumatic interface to move toward the cavity, causing the elastic membrane to deform and break away from its natural state.

5. A seminal vesicle endoscope according to claim 4, characterized in that, The pneumatic interface is bolted to a knob, the end of which faces the guide sheath and contacts the slider piston; when the knob rotates around its own central axis and moves into the pneumatic interface, it squeezes the slider piston, causing the deformable end to deform from a shovel shape to a cylindrical shape.

6. A seminal vesicle endoscope according to claim 1, characterized in that, The guide sheath has a sheath tube between its deformed end and the connecting end, and a connecting valve is provided on the outer wall of the connecting end; the sheath tube is sleeved on the outside of the endoscope tube, and the inner diameter of the sheath tube is larger than the outer diameter of the endoscope tube; when the connecting valve is open and the guide sheath enters the ejaculatory duct, the two sides of the connecting valve form a fluid suction and infusion passage.

7. A seminal vesicle endoscope according to claim 6, characterized in that, An insulating channel is provided inside the main body of the seminal vesicle endoscope. One end of the insulating channel opens at the execution end, and the other end of the insulating channel extends out of the outer wall of the tubular connecting cavity. A conductive wire electrically connected to the electrode is provided inside the insulating channel.

8. A seminal vesicle endoscope according to claim 6, characterized in that, The interconnected conduit cavity and the lens tube have a main channel for inserting the lens and illumination element, the main channel passing through the actuating end and the operating end.

9. A seminal vesicle endoscope according to claim 7, characterized in that, The endoscope tube is provided with a traction line, one end of which is connected to the execution end. A rotating shaft is also rotatably connected inside the tube connecting cavity, and the other end of the traction line is connected to the rotating shaft. There are at least two traction lines. When the rotating shaft rotates around its own central axis, it drives the execution end of the endoscope tube exposed outside the guide sheath to rotate in the same direction.

10. A seminal vesicle endoscope according to claim 9, characterized in that, The rotating shaft extends outside the pipe connecting cavity and is fixedly connected to a limiting rocker arm.

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