A type of hysteroscopic electrosurgical resection device

Abstract

This invention provides a hysteroscopic electrosurgical resection endoscope, belonging to the field of electrosurgical resection technology. It includes an endoscope, with an operating body sleeved on its outer wall. An electrode connector is slidably connected to the outer wall of the operating body, and a pushing component is rotatably connected to the outer wall of the electrode connector. The pushing component is rotatably connected to the outer wall of the operating body, and a connecting block is fixedly connected to the outer wall of the operating body. A sealing assembly is also included, used to assist medical personnel in inserting an outer and inner sheath into the patient's uterine cavity. The sealing assembly is connected to the electrode connector, the connecting block, the outer sheath, and the inner sheath. By setting up the sealing assembly, after the two semi-circular parts close to form a blunt-tipped structure, the window at the end of the outer and inner sheaths away from the connecting block can be sealed, preventing damage to the uterine cavity caused by the window at the end of the outer and inner sheaths when medical personnel control their insertion into the patient's uterine cavity, thus facilitating use by medical personnel.

Description

Technical Field

[0001] This invention relates to the field of electrosurgical technology, and particularly to a hysteroscopic electrosurgical device. Background Technology

[0002] Hysteroscopic resection is a minimally invasive gynecological diagnostic and treatment technique with advantages such as clear field of vision, high lesion identification, minimal trauma, rapid postoperative recovery, and the ability to be performed as a day surgery. It is an important diagnostic and treatment method for gynecological bleeding disorders and intrauterine lesions.

[0003] In existing hysteroscopic resectoscopes, the sheath (composed of an inner and outer sheath) must first be connected to a retractor. The retractor seals the window at the end of the sheath and conforms to the shape of the uterine cavity opening for easy insertion into the patient's uterine cavity, preventing damage to the uterine cavity from the window at the end of the sheath. After the sheath is inserted into the patient's uterine cavity, the retractor is removed, and the remaining components of the hysteroscopic resectoscope are installed. This process of inserting the hysteroscopic resectoscope into the patient's uterine cavity is too cumbersome and inconvenient for medical personnel. Therefore, this invention provides a hysteroscopic resectoscope to meet these needs. Summary of the Invention

[0004] The technical problem to be solved by this invention is to provide a hysteroscopic resectoscope that, by setting a sealing component, can seal the window at the end of the outer and inner sheaths away from the connecting block after the two semicircular parts are closed to form a blunt-tipped structure. This prevents damage to the uterine cavity caused by the window at the end of the outer and inner sheaths when medical personnel control the insertion of the outer and inner sheaths into the patient's uterine cavity, making it easier for medical personnel to use. The above setting can solve the problem that the operation steps of the prior art are too cumbersome and inconvenient for medical personnel to use.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A hysteroscopic resection device includes an endoscope, an operating body fitted onto the outer wall of the endoscope, an electrode connector slidably connected to the outer wall of the operating body, a pusher rotatably connected to the outer wall of the electrode connector, the pusher rotatably connected to the outer wall of the operating body, a connecting block fixedly connected to the outer wall of the operating body, a handle fixedly connected to the outer wall of the connecting block, and an inner sheath and an outer sheath sequentially fitted onto the outer wall of the operating body from the inside to the outside; and a occlusion assembly for assisting medical personnel in inserting the outer and inner sheaths into the patient's uterine cavity, the occlusion assembly being connected to the electrode connector, the connecting block, the outer sheath, and the inner sheath.

[0007] Optionally, the sealing assembly includes a groove formed on the outer wall of the inner sheath near the connecting block, and a limiting rod is fixedly connected to the end of the inner sheath near the connecting block, the limiting rod being inserted into the interior of the connecting block.

[0008] Optionally, a collar is rotatably connected to the side of the connecting block away from the electrode connector, and a slide rod is fixedly connected inside the collar, the slide rod being slidably connected inside the slide groove.

[0009] Optionally, the collar has an annular groove inside, a limiting block is inserted into the annular groove, the limiting block is slidably connected to the inside of the outer sheath, and a bolt is rotatably connected to the inside of the limiting block, the bolt being threaded into the inside of the outer sheath.

[0010] Optionally, a rotating component is rotatably connected to the end of the inner sheath away from the connecting block, and a semi-circular component is fixedly connected to the outer wall of the rotating component, with a groove formed on the outer wall of the semi-circular component.

[0011] Optionally, a toothed plate is fixedly connected inside the semicircular part, and a multi-segment spring sheet is fixedly connected to the inner wall of the semicircular part.

[0012] Optionally, a fixed arc-shaped rod is fixedly connected to the outer wall of the rotating component, a groove adapted to the fixed arc-shaped rod is opened on the inner wall of the outer sheath, a hole adapted to the fixed arc-shaped rod is opened on the inner wall of the inner sheath, and a drainage hole is opened on the outer wall of the end of the outer sheath away from the connecting block.

[0013] Optionally, a connecting ring is fixedly connected to one end of the multi-segment spring sheet away from the semicircular part. The connecting ring is inserted into the inside of the inner sheath, and the outer wall of the connecting ring is adapted to the inner wall of the inner sheath.

[0014] Optionally, a connecting rod is fixedly connected to the outer wall of the connecting ring. The connecting rod is inserted into the interior of the connecting block and the inner sheath. The end of the connecting rod away from the connecting ring has an outwardly bent "J"-shaped profile.

[0015] Optionally, a sling is fixedly connected to the side of the electrode connector near the connecting block.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above solution, by setting up a sealing component, after the two semicircular parts are closed to form a blunt-tipped structure, the window at the end of the outer sheath and inner sheath away from the connecting block can be sealed. This prevents the window at the end of the outer sheath and inner sheath from damaging the patient's uterine cavity when medical staff control the insertion of the outer and inner sheaths into the patient's uterine cavity. Furthermore, it eliminates the need for medical staff to connect the obturator and insert it into the patient's uterine cavity, and then remove the remaining components of the obturator connected to the hysteroscopic resectoscope, making it easier for medical staff to use.

[0018] By setting up a semi-circular piece and a groove, the semi-circular piece works with the groove to form a scraping structure. When medical staff control the rotation of the endoscope through the manipulator to locate the tissue that needs to be removed inside the patient's uterine cavity, the connecting block on the manipulator will drive the inner sheath to rotate together. The inner sheath will then drive the semi-circular piece to rotate together, causing the semi-circular piece to rotate relative to the outer wall of the outer sheath. This scrapes away blood clots and tissue blocking the drainage hole of the outer sheath, preventing blood clots and tissue from blocking the drainage hole and affecting the return of distension fluid.

[0019] By incorporating a semi-circular component and a toothed plate, the semi-circular component can work with the toothed plate to grasp and remove excised tissue from the patient's uterine cavity. This assists medical staff in removing tissue that cannot be flushed away by distending fluid, avoiding the need for subsequent instrument changes, improving efficiency, reducing procedures, and preventing excessive steps that could prolong uterine surgery and negatively impact the patient's health. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of the hysteroscopic resectoscope before deformation;

[0022] Figure 2 A schematic diagram of the three-dimensional structure viewed in sectional view before deformation of the hysteroscopic electrosurgical resectoscope;

[0023] Figure 3 for Figure 2 A magnified three-dimensional structural diagram of part A;

[0024] Figure 4 for Figure 2 A magnified three-dimensional structural diagram of part B;

[0025] Figure 5 A schematic diagram of the three-dimensional structure of a deformed hysteroscopic resectoscope;

[0026] Figure 6 for Figure 5 Enlarged 3D structural diagram of part C

[0027] Figure 7 A schematic diagram of the three-dimensional structure after deformation of the hysteroscopic electrosurgical resectoscope;

[0028] Figure 8 for Figure 7 A magnified three-dimensional structural diagram of part D;

[0029] Figure 9 for Figure 7 A magnified three-dimensional structural diagram of part E.

[0030] Figure label:

[0031] 1. Endoscope; 2. Manipulator body; 3. Electrode connector; 4. Pushing component; 5. Connecting block; 6. Handle; 7. Outer sheath; 8. Inner sheath; 9. Slide groove; 10. Limiting rod; 11. Collar; 12. Slide rod; 13. Annular groove; 14. Limiting block; 15. Bolt; 16. Rotating component; 17. Semicircular component; 18. Groove; 19. Toothed plate; 20. Multi-segment spring plate; 21. Fixed arc rod; 22. Drain hole; 23. Connecting ring; 24. Connecting rod; 25. Lasso.

[0032] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0033] The present invention provides a hysteroscopic resection instrument with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0034] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0035] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0036] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0037] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0038] like Figures 1 to 2 As shown, an embodiment of the present invention provides a hysteroscopic electrosurgical resection device, including an endoscope 1. An operator body 2 is sleeved on the outer wall of the endoscope 1. An electrode connector 3 is slidably connected to the outer wall of the operator body 2. A pusher 4 is rotatably connected to the outer wall of the electrode connector 3. The pusher 4 is rotatably connected to the outer wall of the operator body 2. A connecting block 5 is fixedly connected to the outer wall of the operator body 2. A groove is provided on the inner wall of the connecting block 5, allowing a limiting rod 10 to be inserted into the groove. When the operator rotates, the limiting rod 10 drives the inner sheath 8 to rotate together, allowing the "J"-shaped profile of the connecting rod 24 to pass through the groove into the connecting block 5. A handle 6 is fixedly connected to the outer wall of the connecting block 5. The outer wall is fitted with an inner sheath 8 and an outer sheath 7 sequentially from the inside to the outside. A sealing assembly is used to assist medical personnel in inserting the outer sheath 7 and inner sheath 8 into the patient's uterine cavity. The sealing assembly is connected to the electrode connector 3, the connecting block 5, the outer sheath 7, and the inner sheath 8. By setting the sealing assembly, after the two semicircular pieces 17 are closed, a blunt-tipped structure is formed, sealing the window at the end of the outer sheath 7 and inner sheath 8 away from the connecting block 5. This prevents damage to the uterine cavity from the window at the end of the outer sheath 7 and inner sheath 8 when medical personnel control the insertion of the outer sheath 7 and inner sheath 8 into the patient's uterine cavity. Furthermore, it eliminates the need for medical personnel to connect the obturator and insert it into the patient's uterine cavity, and then remove the obturator to connect the remaining components of the hysteroscopic resectoscope, making it easier for medical personnel to use.

[0039] In this embodiment, as Figures 3 to 9As shown, the sealing assembly includes a groove 9 formed on the outer wall of the inner sheath 8 near the connecting block 5. The groove 9 consists of a straight groove and an arc groove. A limiting rod 10 is fixedly connected to the end of the inner sheath 8 near the connecting block 5. The limiting rod 10 is inserted into the interior of the connecting block 5. A collar 11 is rotatably connected to the side of the connecting block 5 away from the electrode connector 3. A sliding rod 12 is fixedly connected inside the collar 11 and slidably connected to the interior of the groove 9. An annular groove 13 is formed inside the collar 11. A limiting block 14 is inserted into the annular groove 13 and slidably connected to the interior of the outer sheath 7. A bolt 15 is rotatably connected to the interior of the limiting block 14 and is threadedly connected to the interior of the outer sheath 7. A rotating component is rotatably connected to the end of the inner sheath 8 away from the connecting block 5. 16. A semi-circular part 17 is fixedly connected to the outer wall of the rotating part 16. Two grooves 18 are symmetrically arranged on the outer wall of the semi-circular part 17. A toothed plate 19 is fixedly connected inside the semi-circular part 17. A multi-segment spring plate 20 is fixedly connected to the inner wall of the semi-circular part 17. The multi-segment spring plate 20 allows each segment to push the semi-circular part 17 to rotate at a certain angle, preventing excessive bending and damage to the spring plate, which would affect the use by medical personnel. A drainage hole 22 is provided on the outer wall of the outer sheath 7 at the end away from the connecting block 5. A connecting ring 23 is fixedly connected to the end of the multi-segment spring plate 20 away from the semi-circular part 17. The connecting ring 23 is inserted into the inner sheath 8, and its outer wall is adapted to the inner wall of the inner sheath 8. The outer wall of electrode connector 3 is fixedly connected to a connecting rod 24. Two rotating parts 16, two semi-circular parts 17, two toothed plates 19, two multi-segment spring plates 20, and two fixed arc-shaped rods 21 are symmetrically arranged at the ends of the inner sheath 8. All components—rotating parts 16, semi-circular parts 17, two toothed plates 19, two multi-segment spring plates 20, two fixed arc-shaped rods 21, two connecting rings 23, and two connecting rods 24—are made of metal. The connecting rod 24 is inserted into the connecting block 5 and the inner sheath 8. The end of the connecting rod 24 away from the connecting ring 23 has an outwardly bent "J"-shaped profile. A lasso 25 is fixedly connected to the side of electrode connector 3 near the connecting block 5. When medical personnel install the outer sheath 7 and the inner sheath 8 with the manipulator (composed of manipulator body 2, electrode connector 3, pusher 4, connecting block 5, and handle 6)... First, pull the connecting rod 24, causing it to pull the two multi-segment spring plates 20 into the inner sheath 8 via the connecting ring 23. This causes the multi-segment spring plates 20 to pull the semi-circular piece 17, rotating it around the point where the rotating piece 16 connects to the inner sheath 8, until the two semi-circular pieces 17 close together. Then, align the gap at the closed connection of the two semi-circular pieces 17 with the inlet / outlet positions on the outer sheath 7 (aligning the fixed arc-shaped rod 21 with the groove inside the outer sheath 7) and insert it into the outer sheath 7. Then, release the pull on the connecting rod 24, causing the multi-segment spring plates 20 to deform and return to their original position. Pull the connecting rod 24 back to its original position and push the semi-circular piece 17 to deform and unfold until it is blocked by the inner wall of the outer sheath 7.Then, the inner sheath 8 is gradually pushed into the interior of the outer sheath 7 until the semicircular piece 17 passes through the inner sheath 8 and stops. At this point, the semicircular piece 17 is no longer blocked by the inner wall of the outer sheath 7, and the multi-segment spring plate 20 pushes the semicircular piece 17 to continue to reset, allowing the semicircular piece 17 to fit against the outer wall of the end of the outer sheath 7. Then, the medical staff inserts the main body 2 of the operating device into the interior of the inner sheath 8 and aligns the groove on the connecting block 5 with the limiting rod 10 and the connecting rod 24. The limiting rod 10 stops after being inserted into the groove of the connecting block 5. At this time, the sliding rod 12 on the collar 11 slides to the end of the straight groove of the sliding groove 9 on the inner sheath 8. The medical staff rotates the collar. Ring 11 drives the sliding rod 12 into the arc groove of the sliding groove 9. When the sliding rod 12 slides to the end of the arc groove of the sliding groove 9, the inner sheath 8 and the connecting block 5 are limited and fixed. At this time, the inner sheath 8 cannot rotate or move relative to the connecting block 5. Then, the medical staff can rotate the bolt 15, so that the bolt 15 gradually disengages from the interior of the outer sheath 7, and then the bolt 15 drives the limiting block 14 to gradually insert into the interior of the annular groove 13, so that the outer sheath 7 and the connecting block 5 are connected together through the limiting block 14 and the annular groove 13 of the ring 11. At this time, the outer sheath 7, the inner sheath 8 and the operator are assembled.

[0040] After assembling the outer sheath 7, inner sheath 8, and manipulator, medical staff can pull the connecting rod 24 and electrode connector 3 closer together until the end of the lasso 25 is fitted onto the "J"-shaped outline of the connecting rod 24. At this point, medical staff can control the displacement of the electrode connector 3 through the pusher 4 and handle 6 of the manipulator, causing the electrode connector 3 to move the connecting rod 24 via the lasso 25. This, in turn, causes the connecting rod 24 to pull the two multi-segment spring plates 20 through the connected connecting ring 23, which in turn pulls the semi-circular part 17 to rotate the inner part 16. The sheath 8 rotates around the connection point, allowing the two semicircular parts 17 to close or open. When the medical staff controls the two semicircular parts 17 to close, they form a blunt-tipped structure, sealing the window at the end of the outer sheath 7 and inner sheath 8 away from the connecting block 5. This prevents the window at the end of the outer sheath 7 and inner sheath 8 from damaging the uterine cavity when the medical staff controls the insertion of the outer sheath 7 and inner sheath 8 into the patient's uterine cavity. Furthermore, it eliminates the need for the medical staff to connect the obturator and insert it into the patient's uterine cavity before removing the obturator and connecting the remaining parts of the hysteroscopic resectoscope, making it easier for the medical staff to use.

[0041] Furthermore, after the outer sheath 7 and inner sheath 8 are inserted into the patient's uterine cavity, medical staff can separate the connecting rod 24 and the lasso 25, causing the connecting rod 24 to lose its pull, thereby deforming and resetting the multi-segment spring plate 20. The multi-segment spring plate 20 pulls the connecting rod 24 to reset through the connecting ring 23 and pushes the semi-circular piece 17 to rotate until the multi-segment spring plate 20 pushes the semi-circular piece 17 to adhere to the outer wall of the end of the outer sheath 7 and stops. At this time, the semi-circular piece 17, in conjunction with the groove 18, forms a scraping structure. When medical staff control the endoscope 1 to rotate through the manipulator and locate the tissue that needs to be removed inside the patient's uterine cavity, the connecting block 5 on the manipulator will drive the inner sheath 8 to rotate together, causing the inner sheath 8 to drive the semi-circular piece 17 to rotate together. The semi-circular piece 17 rotates relative to the outer wall of the outer sheath 7, scraping away the blood clots and tissue blocking the drainage hole 22 of the outer sheath 7, preventing the blood clots and tissue from blocking the drainage hole 22 and affecting the return of the distending fluid.

[0042] Furthermore, when medical staff complete the intrauterine electrosurgical resection of the patient and need to remove the resected tissue from the uterine cavity, they can reconnect the connecting rod 24 to the lasso 25 and rotate the bolt 15 in the opposite direction, allowing the bolt 15 to gradually enter the outer sheath 7. This allows the bolt 15 to push the limiting block 14 out of the annular groove 13. At this point, the connection between the outer sheath 7 and the connecting block 5 on the operator separates. Medical staff can then use the operator to move the structure other than the outer sheath 7, the limiting block 14, and the bolt 15 out of the patient's uterine cavity. They can then control the displacement of the electrode connector 3 using the pusher 4 and the handle 6 of the operator. This allows the electrode connector 3 to move via the lasso 25, thus moving the connecting rod 24 through the connected connector. Ring 23 pulls two multi-segment spring plates 20 to move, causing the multi-segment spring plates 20 to pull the semi-circular piece 17 to rotate around the rotating connection between the rotating piece 16 and the inner sheath 8, so that the two semi-circular pieces 17 can close or open. When the two semi-circular pieces 17 are in the open state to the closed state, the semi-circular pieces 17 can cooperate with the toothed plate 19 to grasp the tissue removed from the patient's uterine cavity, and then remove the grasped tissue from the patient's uterine cavity. This achieves the purpose of assisting medical staff in removing tissue from the patient's uterine cavity that cannot be flushed away by distending fluid, avoiding the need for medical staff to change other instruments to remove the tissue, improving the efficiency of medical staff, reducing the number of operation steps, and avoiding excessive operation steps that would lead to excessively long uterine cavity surgery time and affect the patient's health.

[0043] In this embodiment, as Figure 4 and Figure 9As shown, a fixed arc-shaped rod 21 is fixedly connected to the outer wall of the rotating component 16. The inner wall of the outer sheath 7 has a groove adapted to the fixed arc-shaped rod 21, and the inner wall of the inner sheath 8 has a hole adapted to the fixed arc-shaped rod 21. With the fixed arc-shaped rod 21, when the two semicircular components 17 are pulled together and completely closed, the fixed arc-shaped rod 21 can be inserted into the groove inside the outer sheath 7, limiting the outer sheath 7 and inner sheath 8 together and allowing them to rotate together. This facilitates the insertion of the outer sheath 7 and inner sheath 8 into the patient's uterine cavity by medical personnel using a rotating manipulator to rotate the outer sheath 7 (slowly rotating 30° to 90°), allowing the outer sheath 7 to enter with minimal resistance. The device is inserted into the patient's uterine cavity, increasing the success rate of medical staff inserting the outer sheath 7 and inner sheath 8 into the uterine cavity and reducing stimulation to the uterine cavity. After the two semicircular parts 17 separate, the fixed arc rod 21 stops connecting the inner wall groove of the outer sheath 7, so that the outer sheath 7 and the inner sheath 8 are rotated again. When the manipulator drives the inner sheath 8 to rotate, the outer sheath 7 will not rotate, avoiding stimulation of the uterine cavity by the outer sheath 7. It should be noted that since the groove inside the outer sheath 7 is a shallow groove, after the two semicircular parts 17 are no longer completely closed, the rotating part 16 will drive the fixed arc rod 21 to disengage from the groove of the outer sheath 7, avoiding subsequent interference with the two semicircular parts 17 in grasping the excised tissue.

[0044] The working principle of the technical solution provided by this invention is as follows: When medical staff need to perform surgery on a patient's uterine cavity, they first assemble the endoscope 1, outer sheath 7, inner sheath 8, and manipulator together. Then, they connect the wiring between the endoscope 1 and the electrode connector 3, and the inlet and outlet pipes on the outer sheath 7. They connect the connecting rod 24 to the lasso 25. Afterward, the medical staff can control the movement of the electrode connector 3 through the pusher 4 and the handle 6 on the manipulator, causing the electrode connector 3 to pull the connecting rod 24. Finally, the two semicircular parts 17 rotate around the connection point between the rotating part 16 and the inner sheath 8 as the center of rotation, until the two semicircular parts 17 close together and stop. At this point, the two semicircular parts... 17 forms a blunt-tipped structure, which facilitates the insertion of the outer sheath 7 and inner sheath 8 into the patient's body by medical staff. After the medical staff inserts the outer sheath 7 and inner sheath 8 into the patient's body, they separate the connecting rod 24 from the lasso 25 and deliver distending fluid into the inner sheath 8 through the water inlet on the outer sheath 7. The distending fluid is then delivered into the patient's uterine cavity through the inner sheath 8 to distend the uterine cavity, which is convenient for medical staff to observe the inside of the uterine cavity. Excess distending fluid will be discharged into the gap between the outer sheath 7 and inner sheath 8 through the drain hole 22, and then discharged through the drain pipe along the gap between the outer sheath 7 and inner sheath 8. In this process, the distending fluid will drain the tissue debris and blood fluid removed during the hysteroscopic resection surgery into the uterine cavity.

[0045] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0046] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hysteroscopic resectoscope, comprising an endoscope, characterized in that, The outer wall of the endoscope is fitted with an operator body. An electrode connector is slidably connected to the outer wall of the operator body. A pusher is rotatably connected to the outer wall of the electrode connector. The pusher is rotatably connected to the outer wall of the operator body. A connecting block is fixedly connected to the outer wall of the operator body. A handle is fixedly connected to the outer wall of the connecting block. An inner sheath and an outer sheath are sequentially fitted onto the outer wall of the operator body from the inside to the outside. An occlusion assembly, which assists medical personnel in inserting an outer sheath and an inner sheath into the patient's uterine cavity, is connected to the electrode connector, the connecting block, the outer sheath, and the inner sheath. The sealing assembly includes a groove formed on the outer wall of the inner sheath near the connecting block, and a limiting rod is fixedly connected to the end of the inner sheath near the connecting block. The limiting rod is inserted into the interior of the connecting block. The inner sheath is rotatably connected to a rotating component at one end away from the connecting block. A semi-circular component is fixedly connected to the outer wall of the rotating component, and a groove is formed on the outer wall of the semi-circular component. A toothed plate is fixedly connected inside the semicircular part, and a multi-segment spring sheet is fixedly connected to the inner wall of the semicircular part. The multi-segment spring sheet is fixedly connected to a connecting ring at one end away from the semi-circular part. The connecting ring is inserted into the inside of the inner sheath, and the outer wall of the connecting ring is adapted to the inner wall of the inner sheath. A connecting rod is fixedly connected to the outer wall of the connecting ring. The connecting rod is inserted into the inside of the connecting block and the inner sheath. The end of the connecting rod away from the connecting ring has an outwardly bent "J" shape.

2. The hysteroscopic resectoscope according to claim 1, characterized in that, The connecting block is rotatably connected to a collar on the side away from the electrode connector. A sliding rod is fixedly connected inside the collar, and the sliding rod is slidably connected inside the groove.

3. The hysteroscopic resectoscope according to claim 2, characterized in that, The collar has an annular groove inside, and a limiting block is inserted into the annular groove. The limiting block is slidably connected to the inside of the outer sheath, and a bolt is rotatably connected inside the limiting block. The bolt is threadedly connected to the inside of the outer sheath.

4. The hysteroscopic resectoscope according to claim 3, characterized in that, The outer wall of the rotating component is fixedly connected to a fixed arc-shaped rod. The inner wall of the outer sheath is provided with a groove that matches the fixed arc-shaped rod. The inner wall of the inner sheath is provided with a hole that matches the fixed arc-shaped rod. The outer wall of the outer sheath away from the connecting block is provided with a drainage hole.

5. The hysteroscopic resectoscope according to claim 1, characterized in that, A sling is fixedly connected to the side of the electrode connector near the connecting block.

Images