Uterine cavity resectoscope

Abstract

The invention provides a uterine cavity resectoscope, and belongs to the technical field of resectoscopes. Comprising an endoscope, the outer wall of the endoscope is sleeved with an operator body, the outer wall of the operator body is slidably connected with an electrode connecting piece, the outer wall of the electrode connecting piece is rotatably connected with a pushing piece, the pushing piece is rotatably connected to the outer wall of the operator body, and the outer wall of the operator body is fixedly connected with a connecting block; the plugging assembly is used for assisting medical staff in inserting the outer sheath and the inner sheath into the uterine cavity of the patient, and the plugging assembly is connected with the electrode connecting piece, the connecting block, the outer sheath and the inner sheath. By arranging the plugging assembly, after the two semicircular pieces are closed to form the blunt end structure, the window holes in the ends, away from the connecting block, of the outer sheath and the inner sheath can be sealed, the situation that when medical staff control the outer sheath and the inner sheath to be inserted into the uterine cavity of the patient, the window holes in the ends of the outer sheath and the inner sheath injure the uterine cavity of the patient is avoided, and use of the medical staff is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of electrotomes, and particularly relates to a hysteroscopic electrotome. Background Art

[0002] The hysteroscopic electrotome is a minimally invasive gynecological diagnosis and treatment technique, which has the advantages of clear vision, high lesion recognition rate, small trauma, fast postoperative recovery, and the ability to carry out day surgery. It is an important diagnosis and treatment method for gynecological hemorrhagic diseases and intrauterine lesions.

[0003] When the existing hysteroscopic electrotome is in use, the sheath of the hysteroscopic electrotome (composed of an inner sheath and an outer sheath) needs to be connected to the obturator first. The obturator seals the window hole at the end of the sheath and fits the shape of the external orifice of the uterine cavity, facilitating insertion into the patient's uterine cavity to avoid damage to the patient's uterine cavity caused by the window hole at the end of the sheath. After the sheath is inserted into the patient's uterine cavity, the obturator is removed and the remaining components of the hysteroscopic electrotome are installed. As a result, the steps of inserting the hysteroscopic electrotome into the patient's uterine cavity are too cumbersome and inconvenient for medical staff to use. Therefore, the present invention provides a hysteroscopic electrotome to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a hysteroscopic electrotome. By setting a blocking component, after the two semi-circular parts are closed to form a blunt head structure, the window holes at the ends of the outer sheath and the inner sheath away from the connecting block can be sealed, avoiding damage to the patient's uterine cavity caused by the window holes at the ends of the outer sheath and the inner sheath when medical staff control the outer sheath and the inner sheath to insert into the patient's uterine cavity, facilitating the use by medical staff. Through the above settings, the problem of overly cumbersome operation steps in the prior art and inconvenience for medical staff to use can be solved.

[0005] To solve the above technical problem, the present invention provides the following technical solutions:

[0006] A hysteroscopic electrotome, comprising an endoscope, an operating device main body sleeved on the outer wall of the endoscope, an electrode connecting member slidably connected to the outer wall of the operating device main body, a pushing member rotatably connected to the outer wall of the electrode connecting member, the pushing member rotatably connected to the outer wall of the operating device main body, a connecting block fixedly connected to the outer wall of the operating device main body, a handle fixedly connected to the outer wall of the connecting block, and an inner sheath and an outer sheath sleeved on the outer wall of the operating device main body in sequence from inside to outside; a blocking component, which is used to assist medical staff in inserting the outer sheath and the inner sheath into the patient's uterine cavity, and the blocking component is connected to the electrode connecting member, the connecting block, the outer sheath, and the inner sheath.

[0007] Optionally, the blocking component includes a sliding groove opened on the outer wall of the inner sheath near the connecting block end, a limiting rod fixedly connected to the inner sheath near the connecting block end, and the limiting rod is inserted into the inside of the connecting block.

[0008] Optionally, a collar is rotatably connected to the side of the connecting block away from the electrode connecting member. A slide bar is fixedly connected to the inside of the collar, and the slide bar is slidably connected to the inside of the chute.

[0009] Optionally, an annular groove is formed inside the collar. A limiting block is inserted into the annular groove. The limiting block is slidably connected to the inside of the outer sheath. A bolt is rotatably connected to the inside of the limiting block, and the bolt is threadedly connected to the inside of the outer sheath.

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

[0011] Optionally, a toothed plate is fixedly connected to the inside of the semi-circular member, and a multi-section spring piece is fixedly connected to the inner wall of the semi-circular member.

[0012] Optionally, a fixed arc-shaped rod is fixedly connected to the outer wall of the rotating member. A groove adapted to the fixed arc-shaped rod is formed on the inner wall of the outer sheath, and a hole adapted to the fixed arc-shaped rod is formed on the inner wall of the inner sheath. A drain hole is formed 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 the end of the multi-section spring piece away from the semi-circular member. The connecting ring is inserted into 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 connecting block and the inner sheath. The end of the connecting rod away from the connecting ring has a "J"-shaped profile bent outward.

[0015] Optionally, a lasso is fixedly connected to the side of the electrode connecting member close to 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 providing the sealing assembly, after the two semi-circular members are closed to form an obtuse head structure, the window holes at the ends of the outer sheath and the inner sheath away from the connecting block can be sealed, avoiding damage to the patient's uterine cavity caused by the window holes at the ends of the outer sheath and the inner sheath when the medical staff controls the outer sheath and the inner sheath to be inserted into the patient's uterine cavity. Moreover, it is not necessary for the medical staff to connect the obturator and insert it into the patient's uterine cavity, and then remove the obturator and connect the remaining components of the hysteroscope, which is convenient for the medical staff to use.

[0018] By setting the semi-circular part and the groove, the semi-circular part cooperates with the groove to form a scraping structure. When medical staff control the rotation of the endoscope through the operating device to make the endoscope search for the tissue to be removed inside the patient's uterine cavity, the connecting block on the operating device will drive the inner sheath to rotate together, causing the inner sheath to drive the semi-circular part to rotate together, making the semi-circular part rotate relative to the outer wall of the outer sheath, scraping the blood clots and tissues blocking the drainage holes of the outer sheath, and preventing the blood clots and tissues from blocking the drainage holes and affecting the reflux of the distending fluid.

[0019] By setting the semi-circular part and the toothed plate, the semi-circular part can cooperate with the toothed plate to clamp the tissue removed inside the patient's uterine cavity and take out the clamped tissue from inside the patient's uterine cavity, achieving the effect of assisting medical staff in removing the tissue that cannot be washed away by the distending fluid inside the patient's uterine cavity, avoiding subsequent replacement of other instruments by medical staff to remove the tissue, improving the efficiency of medical staff, reducing the operation steps of medical staff, and preventing excessive operation steps from causing too long an operation time for the patient's uterine cavity surgery and affecting the patient's health. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0021] Figure 1 Schematic perspective view of the pre-deformation three-dimensional structure of the hysteroscope

[0022] Figure 2 Schematic perspective view of the pre-deformation combined sectional three-dimensional structure of the hysteroscope

[0023] Figure 3 For Figure 2 Schematic perspective view of the enlarged combined structure of part A of

[0024] Figure 4 For Figure 2 Schematic perspective view of the enlarged combined structure of part B of

[0025] Figure 5 Schematic perspective view of the post-deformation three-dimensional structure of the hysteroscope

[0026] Figure 6 For Figure 5 Schematic perspective view of the enlarged combined structure of part C of

[0027] Figure 7 Schematic perspective view of the post-deformation combined sectional three-dimensional structure of the hysteroscope

[0028] Figure 8 For Figure 7 Schematic perspective view of the enlarged combined structure of part D of

[0029] Figure 9 For Figure 7 the enlarged three-dimensional structural schematic diagram of the E part matching.

[0030] Reference numerals:

[0031] 1. Endoscope; 2. Manipulator main body; 3. Electrode connecting piece; 4. Pushing piece; 5. Connecting block; 6. Grip; 7. Outer sheath; 8. Inner sheath; 9. Chute; 10. Limiting rod; 11. Collar; 12. Slide bar; 13. Annular groove; 14. Limiting block; 15. Bolt; 16. Rotating piece; 17. Semi-circular piece; 18. T-shaped groove; 19. Tooth plate; 20. Multi-segmented spring piece; 21. Fixed arc rod; 22. Drain hole; 23. Connecting ring; 24. Connecting rod; 25. Lasso.

[0032] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners

[0033] The following describes in detail a hysteroscopic resectoscope provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0034] It should be noted that in the specification, the mention of "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicates that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. Additionally, when combining embodiments to describe specific features, structures or characteristics, implementing such features, structures or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0035] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending 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 can be used to describe a combination of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0036] It is understood that the meanings of "on", "above", and "over" in the present invention should be interpreted in the broadest manner, such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but may also include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0037] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptive terms used herein may be interpreted accordingly.

[0038] As Figures 1 to 2 shown, an embodiment of the present invention provides a hysteroscopic resectoscope, including an endoscope 1, an outer wall of the endoscope 1 is sleeved with an operator body 2, an outer wall of the operator body 2 is slidably connected with an electrode connecting member 3, an outer wall of the electrode connecting member 3 is rotatably connected with a pushing member 4, the pushing member 4 is rotatably connected to the outer wall of the operator body 2, an outer wall of the operator body 2 is fixedly connected with a connecting block 5, through the arrangement of a groove formed in the inner wall of the connecting block 5, a limiting rod 10 can be inserted into the groove of the connecting block 5, when the operator rotates, the limiting rod 10 drives the inner sheath 8 to rotate together, so that the "J"-shaped contour of the connecting rod 24 can pass through the connecting block 5 through the formed groove, an outer wall of the connecting block 5 is fixedly connected with a grip 6, the outer wall of the operator body 2 is sequentially sleeved with an inner sheath 8 and an outer sheath 7 from inside to outside; a plugging assembly, the plugging assembly is used to assist medical staff in inserting the outer sheath 7 and the inner sheath 8 into the uterine cavity of a patient, the plugging assembly is connected to the electrode connecting member 3, the connecting block 5, the outer sheath 7, and the inner sheath 8, by arranging the plugging assembly, after two semi-circular members 17 are closed, a blunt head structure is formed to seal the window holes at one end of the outer sheath 7 and the inner sheath 8 away from the connecting block 5, avoiding damage to the uterine cavity of the patient caused by the window holes at the ends of the outer sheath 7 and the inner sheath 8 when the medical staff controls the outer sheath 7 and the inner sheath 8 to be inserted into the uterine cavity of the patient, and without the medical staff connecting an obturator and inserting it into the uterine cavity of the patient and then removing the obturator and connecting the remaining components of the hysteroscopic resectoscope, which is convenient for the medical staff to use.

[0039] In this embodiment, as Figures 3 to 9As shown, the plugging component includes a chute 9 opened on the outer wall of the inner sheath 8 near one end connected to the connection block 5. The chute 9 consists of a straight groove and an arc groove. A limiting rod 10 is fixedly connected to one end of the inner sheath 8 near the connection block 5. The limiting rod 10 is inserted into the inside of the connection block 5. A collar 11 is rotatably connected to the side of the connection block 5 away from the electrode connector 3. A sliding rod 12 is fixedly connected to the inside of the collar 11. The sliding rod 12 is slidably connected to the inside of the chute 9. An annular groove 13 is opened in the inside of the collar 11. A limiting block 14 is inserted into the inside of the annular groove 13. The limiting block 14 is slidably connected to the inside of the outer sheath 7. A bolt 15 is rotatably connected to the inside of the limiting block 14. The bolt 15 is threadedly connected to the inside of the outer sheath 7. One end of the inner sheath 8 away from the connection block 5 is rotatably connected to a rotating member 16. An arc-shaped member 17 is fixedly connected to the outer wall of the rotating member 16. A groove 18 is opened on the outer wall of the arc-shaped member 17. The number of the grooves 18 is two, and they are symmetrically opened on the arc-shaped member 17. A toothed plate 19 is fixedly connected to the inside of the arc-shaped member 17. A multi-section spring piece 20 is fixedly connected to the inner wall of the arc-shaped member 17. Through the setting of the multi-section spring piece 20, each section of the spring piece can push the arc-shaped member 17 to rotate a certain angle, avoiding excessive bending and damage of the spring piece and affecting the use of medical staff. A drain hole 22 is opened on the outer wall of the outer sheath 7 away from the connection block 5. One end of the multi-section spring piece 20 away from the arc-shaped member 17 is fixedly connected to a connection ring 23. The connection ring 23 is inserted into the inside of the inner sheath 8. The outer wall of the connection ring 23 is adapted to the inner wall of the inner sheath 8. A connecting rod 24 is fixedly connected to the outer wall of the connection ring 23. The number of the rotating member 16, the arc-shaped member 17, the toothed plate 19, the multi-section spring piece 20 and the fixed arc-shaped rod 21 is set to two, and they are symmetrically arranged at the end of the inner sheath 8. The rotating member 16, the arc-shaped member 17, the toothed plate 19, the multi-section spring piece 20, the fixed arc-shaped rod 21, the connection ring 23 and the connecting rod 24 are all made of metal. The connecting rod 24 is inserted into the inside of the connection block 5 and the inner sheath 8. One end of the connecting rod 24 away from the connection ring 23 has a "J"-shaped contour bent outward. A lasso 25 is fixedly connected to the side of the electrode connector 3 near the connection block 5. When medical staff install the outer sheath 7 and the inner sheath 8 on the manipulator (consisting of a manipulator body 2, an electrode connector 3, a pusher 4, a connection block 5, and a handle 6), first pull the connecting rod 24, so that the connecting rod 24 pulls the two multi-section spring pieces 20 to contract into the inside of the inner sheath 8 through the connected connection ring 23. Furthermore, the multi-section spring pieces 20 pull the arc-shaped member 17 to rotate around the rotation connection point of the rotating member 16 and the inner sheath 8 as the center until the two arc-shaped members 17 are closed together and then stop. At this time, align the gap at the closed connection of the two arc-shaped members 17 with the position of the water inlet and outlet on the outer sheath 7 (align the fixed arc-shaped rod 21 with the groove opened inside the outer sheath 7), and insert it into the inside of the outer sheath 7. Then release the pull on the connecting rod 24, so that the multi-section spring pieces 20 deform and reset, pull the connecting rod 24 to reset and push the arc-shaped member 17 to deform and unfold until the arc-shaped member 17 is blocked by the inner wall of the outer sheath 7 and then stop.Then, push the inner sheath 8 gradually into the interior of the outer sheath 7 until the semi-circular part 17 passes through the inner sheath 8 and stops. At this time, the semi-circular part 17 loses the blockage of the inner wall of the outer sheath 7, and the multi-segment spring piece 20 pushes the semi-circular part 17 to continue to reset, so that the semi-circular part 17 fits against the outer wall of the end of the outer sheath 7. After that, the medical staff inserts the main body 2 of the manipulator into the interior of the inner sheath 8, and aligns the groove formed in the connecting block 5 with the limiting rod 10 and the connecting rod 24. After the limiting rod 10 is inserted into the groove of the connecting block 5 and stops, the slide 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 11 to drive the slide rod 12 into the arc groove of the sliding groove 9. When the slide 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, and 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 to gradually disengage the bolt 15 from the interior of the outer sheath 7, and further drive the limiting block 14 by the bolt 15 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 collar 11. At this time, the assembly of the outer sheath 7, the inner sheath 8 and the manipulator is completed.

[0040] After the medical staff completes the assembly of the outer sheath 7, the inner sheath 8 and the manipulator, they can pull the connecting rod 24 and the electrode connecting member 3 closer to each other until the end of the lasso 25 is sleeved on the "J"-shaped contour of the connecting rod 24 and stops. At this time, the medical staff can control the displacement of the electrode connecting member 3 through the pusher 4 and the grip 6 of the manipulator, so that the electrode connecting member 3 drives the connecting rod 24 to move through the lasso 25. Further, the connecting rod 24 drives the two multi-segment spring pieces 20 to move through the connected connecting ring 23, so that the multi-segment spring pieces 20 pull the semi-circular part 17 to rotate around the rotation connection point of the rotating member 16 and the inner sheath 8 as the center of the circle, so that the two semi-circular parts 17 are closed or unfolded. When the medical staff controls the two semi-circular parts 17 to close, the two semi-circular parts 17 form a blunt head structure to seal the window holes at the ends of the outer sheath 7 and the inner sheath 8 away from the connecting block 5, avoiding damage to the patient's uterine cavity caused by the window holes at the ends of the outer sheath 7 and the inner sheath 8 when the medical staff controls the outer sheath 7 and the inner sheath 8 to be inserted into the patient's uterine cavity. Moreover, it is not necessary for the medical staff to connect the obturator and insert it into the patient's uterine cavity, and then remove the obturator and connect the remaining parts of the hysteroscope, which is convenient for the medical staff to use;

[0041] Further, after the outer sheath 7 and the inner sheath 8 are inserted into the patient's uterine cavity, medical staff can separate the connecting rod 24 from the lasso 25, so that the pulling force on the connecting rod 24 is lost, and then the multi-segment spring piece 20 deforms and resets. The multi-segment spring piece 20 pulls the connecting rod 24 to reset and pushes the semi-circular member 17 to rotate through the connecting ring 23 until the multi-segment spring piece 20 stops after pushing the semi-circular member 17 to fit against the outer wall of the end of the outer sheath 7. At this time, the semi-circular member 17 cooperates with the formed groove 18 to form a scraping structure. When medical staff controls the rotation of the endoscope 1 through the manipulator and the endoscope 1 searches for the tissue 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, so that the inner sheath 8 drives the semi-circular member 17 to rotate together, and the semi-circular member 17 rotates relative to the outer wall of the outer sheath 7 to scrape the blood clots and tissues blocking the drainage holes 22 of the outer sheath 7, preventing the blood clots and tissues from blocking the drainage holes 22 and affecting the return flow of the distending fluid.

[0042] Even further, when the medical staff finishes the electrocision operation on the patient's uterine cavity and needs to remove the tissue removed from the patient's uterine cavity, the medical staff can reconnect the connecting rod 24 to the lasso 25 and reverse-rotate the bolt 15, so that the bolt 15 gradually enters the interior of the outer sheath 7, and the bolt 15 pushes the limiting block 14 to disengage from the interior of the annular groove 13. At this time, the connection between the outer sheath 7 and the connecting block 5 on the manipulator is separated. The medical staff can drive the structures other than the outer sheath 7, the limiting block 14, and the bolt 15 to disengage from the interior of the patient's uterine cavity through the manipulator. At this time, the medical staff can control the displacement of the electrode connecting member 3 through the pusher 4 and the grip 6 of the manipulator, so that the electrode connecting member 3 drives the connecting rod 24 to move through the lasso 25. Further, the connecting rod 24 pulls the two multi-segment spring pieces 20 to move through the connected connecting ring 23, and the multi-segment spring pieces 20 pull the semi-circular members 17 to rotate around the rotation connection point of the rotating member 16 and the inner sheath 8, so that the two semi-circular members 17 close or unfold. When the two semi-circular members 17 change from the unfolded state to the closed state, the semi-circular members 17 can cooperate with the toothed plate 19 to clamp the tissue removed from the patient's uterine cavity, and then take out the clamped tissue from the interior of the patient's uterine cavity, achieving the purpose of assisting the medical staff to remove the tissue that cannot be washed away by the distending fluid in the patient's uterine cavity, avoiding subsequent replacement of other instruments by the medical staff to remove the tissue, improving the efficiency of the medical staff, reducing the operation steps of the medical staff, and avoiding excessive operation steps from causing too long a uterine cavity operation time for the patient and affecting the patient's health.

[0043] In this embodiment, as Figure 4 and Figure 9As shown, the outer wall of the rotating member 16 is fixedly connected with a fixed arc rod 21, the inner wall of the outer sheath 7 is provided with a groove adapted to the fixed arc rod 21, and the inner wall of the inner sheath 8 is provided with a hole adapted to the fixed arc rod 21. By setting the fixed arc rod 21, when the two semicircular members 17 are pulled completely closed together, the fixed arc rod 21 can be inserted into the groove provided inside the outer sheath 7, limiting the outer sheath 7 and the inner sheath 8 together, allowing the outer sheath 7 and the inner sheath 8 to rotate together, making it convenient for medical staff to rotate the outer sheath 7 by rotating the operator when inserting the outer sheath 7 and the inner sheath 8 into the patient's uterine cavity (slowly rotating 30° to 90°), so that the outer sheath 7 can be inserted with as little resistance as possible. Into the patient's uterine cavity, improve the success rate of medical staff in inserting the outer sheath 7 and the inner sheath 8 into the patient's uterine cavity, and reduce the stimulation to the patient's uterine cavity. When the two semicircular parts 17 are separated, the fixed arc rod 21 stops being connected to the inner wall groove of the outer sheath 7, so that the outer sheath 7 and the inner sheath 8 are re-rotated. When the operator drives the inner sheath 8 to rotate, the outer sheath 7 will not rotate, avoiding the outer sheath 7 from irritating the patient's uterine cavity. It should be noted that since the groove opened inside the outer sheath 7 is a shallow groove, the two semicircular parts 17 are no longer completely closed, and the rotating part 16 will drive the fixed arc rod 21 to disengage from the groove of the outer sheath 7, avoiding subsequent influence on the two semicircular parts 17 to clamp the excised tissue.

[0044] The working principle of the technical solution provided by the present invention is as follows: when medical staff need to perform surgery on the patient's uterine cavity, the medical staff first assemble the endoscope 1, the outer sheath 7, the inner sheath 8 and the manipulator together, and then connect the endoscope 1 with the line of the electrode connector 3 and the water inlet and outlet pipes on the outer sheath 7, and connect the connecting rod 24 with the lasso 25. After that, the medical staff can control the movement of the electrode connector 3 through the pusher 4 and the handle 6 on the manipulator, so that the electrode connector 3 pulls the connecting rod 24, and finally the two semicircular members 17 rotate with the connection between the rotating member 16 and the inner sheath 8 as the rotation center until the two semicircular members 17 are closed together and stop. At this time, the two semicircular members 17 forms a blunt head structure, which is convenient for medical staff to insert the outer sheath 7 and the inner sheath 8 into the patient's body. After the medical staff insert the outer sheath 7 and the inner sheath 8 into the patient's body, the connecting rod 24 is separated from the lasso 25 and the uterine distension fluid is transported to the inside of the inner sheath 8 through the water inlet on the outer sheath 7, so that the uterine distension fluid is transported into the patient's uterine cavity through the inner sheath 8 to distend the uterine cavity, making it convenient for medical staff to observe the inside of the uterine cavity. The excess uterine distension fluid will be discharged into the gap between the outer sheath 7 and the inner sheath 8 through the drainage hole 22, and then discharged through the drainage pipe along the gap between the outer sheath 7 and the inner sheath 8. In this process, the uterine distension fluid will discharge the tissue debris and blood removed during the hysteroscopic surgery into the uterine cavity.

[0045] The present invention covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are elaborated in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits are not described in detail to avoid unnecessary confusion to the essence of the present invention.

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

Claims

1. A hysteroscopic resectoscope, comprising an endoscope, characterized in that, The outer wall of the endoscope is sleeved with a manipulator main body. The outer wall of the manipulator main body is slidably connected with an electrode connecting piece. The outer wall of the electrode connecting piece is rotatably connected with a pushing piece. The pushing piece is rotatably connected to the outer wall of the manipulator main body. The outer wall of the manipulator main body is fixedly connected with a connecting block. The outer wall of the connecting block is fixedly connected with a grip. The outer wall of the manipulator main body is sequentially sleeved with the inner sheath and the outer sheath from inside to outside; A plugging assembly, which is used to assist medical staff in inserting the outer sheath and the inner sheath into the patient's uterine cavity. The plugging assembly is connected to the electrode connecting piece, the connecting block, the outer sheath, and the inner sheath.

2. The hysteroscopic resectoscope according to claim 1, wherein, The plugging assembly includes a chute opened on the outer wall of the inner sheath near one end of the connecting block. One end of the inner sheath near the connecting block is fixedly connected with a limiting rod, and the limiting rod is inserted into the inside of the connecting block.

3. The hysteroscopic resectoscope according to claim 2, wherein, One side of the connecting block away from the electrode connecting piece is rotatably connected with a collar. A sliding rod is fixedly connected inside the collar, and the sliding rod is slidably connected inside the chute.

4. The hysteroscope according to claim 3, characterized in that, An annular groove is opened inside the collar. A limiting block is inserted into the annular groove. The limiting block is slidably connected inside the outer sheath. A bolt is rotatably connected inside the limiting block, and the bolt is threadedly connected inside the outer sheath.

5. The hysteroscope according to claim 2, wherein One end of the inner sheath away from the connecting block is rotatably connected with a rotating piece. A semi-circular piece is fixedly connected to the outer wall of the rotating piece, and a groove is opened on the outer wall of the semi-circular piece.

6. The hysteroscope according to claim 5, characterized in that, A toothed plate is fixedly connected inside the semi-circular piece, and a multi-section spring piece is fixedly connected to the inner wall of the semi-circular piece.

7. The hysteroscopic resectoscope according to claim 5, wherein, A fixed arc-shaped rod is fixedly connected to the outer wall of the rotating piece. 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. A drainage hole is opened on the outer wall of the outer sheath away from the connecting block.

8. The hysteroscopic resectoscope according to claim 6, wherein, One end of the multi-section spring piece away from the semi-circular piece is fixedly connected with a connecting ring, and the connecting ring is inserted into the inside of the inner sheath. The outer wall of the connecting ring is adapted to the inner wall of the inner sheath.

9. The hysteroscope according to claim 8, characterized in that, 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. One end of the connecting rod away from the connecting ring has a "J"-shaped contour bent outward.

10. The hysteroscope according to claim 1, characterized in that, A lasso is fixedly connected to one side of the electrode connecting piece near the connecting block.

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