Visual field expander placed in vagina
By designing a field of view expander placed in the vagina, using an extended structure and a regulatory structure to gradually expand the vagina, and diffuse blood through the fluid-guided structure, the severe pain and bleeding caused to the patient by existing duck nose forceps during vaginal expansion is solved, and surgical conditions and patient comfort is improved.
Patent Information
- Application Number
- CN202411788312.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-03-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing duck-nosed forceps cause severe pain to the patient when vaginally dilates and may lead to vaginal tear and bleeding, affecting subsequent surgery and suture work.
A field of view extender placed in the vagina is designed, adopting an extended structure and an adjustment structure. The first rotation shaft and ratchet rotate simultaneously through the movement of the second handle, gradually expand and limit the upper duckbill dilation sheet to reduce pain, and guide blood through the lower silicone and fluid-guided structure to prevent blood accumulation.
It is achieved to give patients a gradual adaptation time when they cannot bear the pain, reduce the pain sensation, and effectively divert blood, improve surgical conditions and reduce damage to the vagina.
Smart Images
Figure CN119564138A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of gynecological medical instruments, and in particular to a visual field expander placed in a vagina. Background Art
[0002] Intravaginal visual field expanders are widely used in the diagnosis and treatment of gynecological diseases in clinical practice. Most intravaginal visual field expanders use duckbill forceps. The principle is to extend the upper duckbill piece and the lower duckbill piece into the vagina, and then the medical staff presses the handle to expand the upper duckbill piece and the lower duckbill piece and complete the vaginal expansion. Then the medical staff can use a handheld endoscope to look through the operation window formed between the upper duckbill piece and the lower duckbill piece to diagnose the condition of the internal vaginal lesion. If necessary, various surgical instruments can enter the vagina through the operation window to treat the lesion accordingly.
[0003] However, the existing duckbill forceps have the following defects in expanding the patient's vagina. The duckbill forceps are usually expanded by medical staff by pressing it at once, which will cause severe pain to the patient and cannot give the patient's vagina time to gradually adapt to the expansion of the duckbill forceps. If the expansion is completed at once, it is easy to cause a severe tearing sensation in the patient's vagina, resulting in continuous bleeding in the vagina. The accumulation of blood will affect the medical staff's suturing or other surgical work on the patient's vagina. In view of this, we propose a field of view expander placed in the vagina. Summary of the invention
[0004] The object of the present invention is to provide a visual field expander placed in the vagina to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention provides a visual field expander placed in the vagina, comprising an extension structure, an adjustment structure for gradually expanding the extension structure is arranged inside the extension structure, and an adjustment structure for removing liquid is arranged on the surface of the adjustment structure;
[0006] By pressing the extendable structure to drive the adjustment structure to rotate, the extendable structure can be gradually expanded and the extendable structure can be limited and stabilized. At the same time, the liquid stored in the liquid-conducting structure can be diverted according to the expansion size of the extendable structure.
[0007] Preferably, the extension structure includes an upper silicone gel, an upper duckbill expansion piece for expanding the field of vision is arranged inside the upper silicone gel, the upper silicone gel and the upper duckbill expansion piece are detachably installed, an operation window is provided on the side of the upper duckbill expansion piece for medical staff to detect wounds, and a second handle for easy pressing is fixedly connected to the end of the upper duckbill expansion piece close to the operation window, a first rotating shaft for limiting is fixedly connected between the upper duckbill expansion piece and the second handle, a first handle is rotatably connected to the outer ring surface of the first rotating shaft, a limiting groove is provided on the inner side of the first handle, a bolt structure for fixing the expansion is slidably connected to the inner side of the limiting groove, and the bolt structure passes through the second handle, a lower silicone gel for expanding the field of vision is fixedly connected to the outer side of the first handle, and a lower duckbill expansion piece for protecting the patient is detachably mounted on the outer ring surface of the lower silicone gel.
[0008] Preferably, the adjustment structure includes a ratchet, which is fixedly connected to the outer ring surface of the first rotating shaft, and a pawl for clamping the ratchet is arranged against the outer ring surface of the ratchet. The side of the pawl away from the ratchet is fixedly connected to the inside of the second rotating shaft, and both ends of the second rotating shaft are rotatably connected to the inner side of the first handle.
[0009] Preferably, when the second handle is not moving, the ratchet and pawl fixed on the outer annular surface of the first rotating shaft are in a state of abutment, and when the second handle is moving, the ratchet and pawl fixed on the outer annular surface of the first rotating shaft are in a state of non-abutment.
[0010] Preferably, the upper silicone and the lower duckbill expansion piece are both medical silicone, and the upper silicone and the lower duckbill expansion piece are both arc-shaped. The upper silicone and the upper duckbill expansion piece are adapted to each other as well as the lower silicone and the lower duckbill expansion piece. A second handle fixed at the end of the upper duckbill expansion piece is provided with a hole adapted to the bolt structure. The first rotating axis between the second handle and the upper duckbill expansion piece, and the ratchet and the pawl fixed on the outer annular surface are adapted to each other.
[0011] Preferably, the liquid guiding structure includes a swinging plate, the swinging plates are respectively fixedly connected to the outer annular surface of the second rotating shaft, a hinged column is hinged on the side of the swinging plate away from the second rotating shaft, and a movable plate for cleaning is fixedly connected to the end of the hinged column away from the swinging plate, the movable plate is slidably connected to the interior of the lower silicone, a pipe for guiding liquid is fixedly connected to the side of the lower silicone close to the swinging plate, and a diversion port is opened inside the side of the lower silicone away from the pipe.
[0012] Preferably, when the ratchet is not rotating, the pawl and the swing plate fixed on the outer ring surface of the second rotating shaft are in a non-swinging state; when the ratchet rotates, the pawl and the swing plate fixed on the outer ring surface of the second rotating shaft are in a swinging state; when the swing plate is not swinging, the movable plate connected to the side of the swing plate through the hinge column is in a state away from the guide port; when the swing plate swings, the movable plate connected to the side of the swing plate through the hinge column is in a state of wiping the guide port.
[0013] Preferably, the movable plate slidably connected inside the lower silicone is U-shaped, the interior of the lower silicone is hollow, and the hinged column and the swing plate fixed on the side of the movable plate away from the guide port are respectively arranged in two groups.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. In the field of vision expander placed in the vagina, the second handle is moved to drive the first rotating shaft and the ratchet to rotate synchronously, and the ratchet pawl is abutted against the ratchet teeth in the next pawl, so as to stabilize and maintain the expanded upper duckbill expansion piece, so as to give the patient time to gradually adapt to the pain when the patient cannot bear the pain, thereby reducing the patient's pain and improving the subsequent vaginal expansion effect.
[0016] 2. In the field of view expander placed in the vagina, the lower silicone can receive blood and guide it from the diversion port to the inside of the lower silicone, and then be discharged to the outside of the overall structure through the pipeline. When the second rotating shaft rotates, it will synchronously drive the swing plate and the hinged column to move, so that the hinged column connects the moving plate to slide in the direction of the diversion port inside the lower silicone and wipe the diversion port, preventing blood or secretions from accumulating in the diversion port and affecting the diversion of the diversion port, thereby increasing the diversion speed of the blood at the diversion port. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure assembly of the present invention;
[0018] Figure 2 It is a side perspective view of the overall structure of the present invention;
[0019] Figure 3 It is a schematic diagram of the splitting of the extended structure of the present invention;
[0020] Figure 4 It is a partial schematic diagram of the extension structure and the adjustment structure of the present invention;
[0021] Figure 5 It is a top perspective view of the regulating structure and the liquid guiding structure of the present invention;
[0022] Figure 6 It is a schematic diagram of the separation of the regulating structure and the liquid conducting structure of the present invention;
[0023] Figure 7 It is a schematic diagram of the position of the diversion port and the pipeline of the present invention;
[0024] Figure 8 It is a schematic diagram of the structure of the overall structure of the present invention after the motion state;
[0025] Fig. 9 It is a schematic diagram of the structure of the bolt structure of the present invention after the movement state.
[0026] The meaning of each number in the figure is:
[0027] 100. Extension structure; 101. Upper silicone; 102. Upper duckbill expansion piece; 103. Lower duckbill expansion piece; 104. Lower silicone; 105. First handle; 106. First rotation axis; 107. Bolt structure; 108. Operation window; 109. Limiting groove; 110. Second handle; 200. Adjustment structure; 201. Ratchet; 202. Ratchet; 203. Second rotation axis; 300. Liquid guide structure; 301. Swinging plate; 302. Articulated column; 303. Moving plate; 304. Diversion port; 305. Pipeline. DETAILED DESCRIPTION
[0028] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] The intravaginal visual field expander is used to assist in the diagnosis of the condition of the internal vaginal lesions. In particular, during colposcopy, the doctor needs to observe the internal conditions of the vagina and cervix through a colposcope. Since the vagina is a limited space, the vaginal dilator can help the doctor observe the conditions of the vagina and cervix more clearly. For this purpose, the present invention provides a visual field expander placed in the vagina. Please refer to Figure 1-Figure 9 , comprising an extension structure 100, an adjustment structure 200 for gradually expanding the extension structure 100 is arranged inside the extension structure 100, and an adjustment structure 200 for removing liquid is arranged on the surface of the adjustment structure 200;
[0030] By pressing the extendable structure 100 to drive the adjustment structure 200 to rotate, the extendable structure 100 can be gradually expanded and the extendable structure 100 can be limited and stabilized. At the same time, the liquid stored in the liquid guiding structure 300 can be diverted according to the expansion size of the extendable structure 100.
[0031] The present invention takes into account that the existing duckbill forceps have the following defects in expanding the patient's vagina. The duckbill forceps are usually expanded by medical staff by pressing once, which will cause severe pain to the patient and cannot give the patient's vagina time to gradually adapt to the expansion of the duckbill forceps. Therefore, by moving the second handle 110, the first rotating shaft 106 and the ratchet 201 are driven to rotate synchronously, and the ratchet 202 is abutted against the ratchet teeth in the next ratchet 202, so as to stabilize and maintain the expanded upper duckbill expansion piece 102, so that when the patient cannot bear the pain, the patient can be given time to gradually adapt to the pain, thereby reducing the patient's pain and improving the subsequent vaginal expansion effect;
[0032] Next, it is considered that when the vagina is expanded, blood or secretions will be produced inside the vagina. This is because the patient's vaginal mucosa is relatively fragile, especially when there is insufficient lubrication or the expansion speed is too fast or the force is too great. Dilating instruments such as duckbill forceps can easily cause damage to the patient's vaginal mucosa, causing bleeding inside the patient's vagina. Therefore, the lower silicone 104 can receive the blood and divert it from the diversion port to the inside of the lower silicone 104, and then discharge it to the outside of the overall structure through the pipeline. When the second rotating shaft 203 rotates, it will synchronously drive the swing plate 301 and the hinged column to move, so that the hinged column connected to the moving plate slides in the direction of the diversion port inside the lower silicone 104 and wipes the diversion port to prevent blood or secretions from accumulating in the diversion port and affecting the diversion of the diversion port, thereby increasing the diversion speed of the blood at the diversion port.
[0033] On the basis of the above, the following specific structures need to be disclosed in detail:
[0034] Please refer to Figure 1-Figure 3 The extension structure 100 includes an upper silicone 101, and an upper duckbill expansion piece 102 for expanding the field of vision is arranged inside the upper silicone 101. The upper silicone 101 and the upper duckbill expansion piece 102 are detachably installed. The specific installation method is that a card slot is arranged inside the upper silicone 101, and a card block is arranged on the outer ring surface of the upper duckbill expansion piece 102. The principle is that the card block is usually a protrusion with a certain shape and size, and the card slot is a concave part matching it. After the card block is inserted into the card slot, it is fixed by friction, card connection, etc. When disassembling, the upper silicone 101 can be directly pulled out. On the one hand, the upper silicone 101 can be used to protect the upper duckbill expansion piece 102 from sanitation. On the other hand, it is convenient to replace the upper silicone 101, which is beneficial to prolonging the service life of the upper duckbill expansion piece 102.
[0035] Other specific structures of the above-mentioned extension structure 100 will be further described here. An operation window 108 is provided on the side of the upper duckbill expansion piece 102 for medical staff to detect wounds. A second handle 110 for easy pressing is fixedly connected to one end of the upper duckbill expansion piece 102 close to the operation window 108. A first rotating shaft 106 for limiting is fixedly connected between the upper duckbill expansion piece 102 and the second handle 110. The first rotating shaft 106 is rotatably connected to the outer ring surface of the first rotating shaft 106. A limiting The limiting groove 109 has a bolt structure 107 for fixing the expansion in a sliding connection inside the limiting groove 109, and the bolt structure 107 passes through the second handle 110. The outer side of the first handle 105 is fixedly connected with a lower duckbill expansion piece 103 for expanding the field of view, and the outer ring surface of the lower duckbill expansion piece 103 is detachably mounted with a lower silicone rubber 104 for protecting the patient. The detachable connection method and benefits between the lower duckbill expansion piece 103 and the lower silicone rubber 104 are the same as those of the upper silicone rubber 101 and the upper duckbill expansion piece 102 mentioned above.
[0036] The movement process of the overall structure of the extension structure 100 is explained here. After the upper silicone 101, the upper duckbill expansion piece 102, the lower duckbill expansion piece 103 and the lower silicone 104 are inserted into the patient's vagina, the upper silicone 101 and the lower silicone 104 can protect the patient's vagina. Then the staff can manually press the second handle 110 and move it in the direction of the first handle 105, so that the upper duckbill expansion piece 102 fixed on the top of the second handle 110 expands outward, thereby expanding the patient's vagina and providing a field of view. At the same time, when the second handle 110 moves in the direction of the first handle 105, the first rotating shaft 106 connected between the second handle 110 and the upper duckbill expansion piece 102 will rotate forward to complete the expansion of the patient's vagina.
[0037] It is explained here that the upper silicone 101 and the lower silicone 104 are both medical silicone settings, because medical silicone is a silicone material specially used in the medical field, it has good biocompatibility, which means that the human immune system and tissues react less to it, and it is not easy to cause adverse reactions such as allergies and inflammation. Its chemical properties are stable and will not cause chemical reactions or damage to the patient's vagina. It has flexibility and anti-slip effects. On the one hand, it can protect the patient's vagina, because most of the existing duckbill forceps are made of stainless steel, medical carbon steel or plastic;
[0038] It can be seen that the existing duckbill forceps need to be set with a harder material to dilate the patient's vagina. Therefore, the upper silicone 101 and the lower silicone 104 are respectively set on the outer ring surface of the upper duckbill dilation piece 102 and the lower duckbill dilation piece 103 to protect the patient's vagina from damage, while not affecting the dilation of the patient's vagina. On the other hand, the vagina is non-slip after dilation. This is because the surface of medical silicone is not absolutely smooth, it has a certain degree of roughness, and this tiny unevenness can increase the friction between the patient's vagina. Therefore, when the upper silicone 101 and the lower silicone 104 are in contact with the patient's vagina, sliding can be prevented.
[0039] The detailed structure of the improved point of the present invention is as follows:
[0040] In order to give the patient time to adapt to the pain when dilating the vagina, the following specific structure will be disclosed in detail. The adjustment structure 200 includes a ratchet 201, which is fixedly connected to the outer annular surface of the first rotating shaft 106. A pawl 202 for clamping the ratchet 201 is arranged on the outer annular surface of the ratchet 201. A second rotating shaft 203 is fixedly connected to the inside of the pawl 202 away from the ratchet 201. Both ends of the second rotating shaft 203 are rotatably connected to the inner side of the first handle 105.
[0041] When the second handle 110 is not moving, the ratchet 201 and the pawl 202 fixed on the outer annular surface of the first rotating shaft 106 are in abutment with each other; when the second handle 110 is moving, the ratchet 201 and the pawl 202 fixed on the outer annular surface of the first rotating shaft 106 are in a non-affective state.
[0042] Here, the movement process of the above-mentioned extension structure 100 and the adjustment structure 200 as a whole structure cooperates with each other. The first rotating shaft 106 rotates forward to drive the ratchet 201 to rotate forward. When the ratchet 201 rotates forward, the ratchet teeth on the outer ring surface of the ratchet 201 that abut against the pawl 202 will pass over the pawl 202 and abut against the ratchet teeth in the next pawl 202. As for the cooperation between the ratchet 201 and the pawl 202, it is because the patient will feel pain or be unable to adapt when expanding the vagina. Therefore, the medical staff presses the second hand After the handle 110 moves a certain distance, the upper duckbill expansion piece 102 will expand the patient's vagina. At this time, the patient will experience pain and needs to gradually adapt. The medical staff can release the pressure of the second handle 110 to make the ratchet 201 and the pawl 202 abut against each other, thereby stabilizing and maintaining the expanded upper duckbill expansion piece 102. Then, when the patient gradually adapts to the pain, the medical staff can press the second handle 110 again and drive the upper duckbill expansion piece 102 to expand the patient's vagina until it is convenient for the medical staff to perform surgery or suture the patient's vagina.
[0043] Next, considering that the blood or secretions produced inside the vagina during vaginal dilation are due to the relatively fragile vaginal mucosa of the patient, especially when there is insufficient lubrication or the dilation speed is too fast or the force is too great, the dilation instruments such as duckbill forceps can easily cause damage to the patient's vaginal mucosa, causing bleeding inside the patient's vagina. The following specific structures need to be disclosed in detail, please refer to Figure 4-Figure 9 The liquid guiding structure 300 includes a swinging plate 301, which is fixedly connected to the outer annular surface of the second rotating shaft 203. A hinged column 302 is hinged on the side of the swinging plate 301 away from the second rotating shaft 203. A movable plate 303 for cleaning is fixedly connected to the end of the hinged column 302 away from the swinging plate 301. The movable plate 303 is slidably connected to the inside of the lower duckbill expansion piece 103. A pipe 305 for guiding liquid is fixedly connected to the side of the lower duckbill expansion piece 103 close to the swinging plate 301, and a guide port 304 is opened inside the side of the lower duckbill expansion piece 103 away from the pipe 305.
[0044] When the ratchet 201 is not rotating, the pawl 202 and the swing plate 301 fixed on the outer ring surface of the second rotating shaft 203 are in a non-swinging state. When the ratchet 201 is rotating, the pawl 202 and the swing plate 301 fixed on the outer ring surface of the second rotating shaft 203 are in a swinging state. When the swing plate 301 is not swinging, the movable plate 303 connected to the side of the swing plate 301 through the hinge column 302 is in a state away from the guide port 304. When the swing plate 301 is swinging, the movable plate 303 connected to the side of the swing plate 301 through the hinge column 302 is in a state of wiping the guide port 304.
[0045] The movement process between the above-mentioned adjustment structure 200 and the liquid guiding structure 300 will be described in detail below. When the upper duckbill expansion piece 102 gradually expands the patient's vagina, a severe tearing sensation will be generated, causing blood or secretions to appear inside the patient's vagina. At this time, when blood drips in the patient's vagina, the lower duckbill expansion piece 103 can receive the blood and guide it from the guide port 304 to the inside of the lower duckbill expansion piece 103, and then discharge it to the outside of the overall structure through the pipe 305. As for why the blood needs to be discharged in time, it is because when blood accumulates in the patient's vagina, it may block the wound in the patient's vagina, resulting in the medical staff being unable to accurately judge when suturing the wound in the vagina, and it is also easy to cause bacterial growth, and then when the ratchet 201 rotates When the ratchet 202 is driven to abut against the ratchet teeth in the next ratchet 202, the ratchet 202 will swing, and the second rotating shaft 203 will be driven to rotate during the swinging process. The rotation of the second rotating shaft 203 will synchronously drive the swing plate 301 and the hinge column 302 to move, so that the hinge column 302 connects the moving plate 303 to slide and wipe in the direction of the guide port 304 inside the lower duckbill expansion piece 103, which can prevent blood from accumulating in the guide port 304. Because there may be secretions in the vagina, which are generally viscous, when the lower duckbill expansion piece 103 guides blood, the secretions may be blocked at the guide port 304, so the moving plate 303 moves to wipe the guide port 304, thereby increasing the blood guiding speed of the guide port 304;
[0046] The above working principles are as follows:
[0047] After the upper silicone 101, the upper duckbill expansion piece 102, the lower duckbill expansion piece 103 and the lower silicone 104 are inserted into the patient's vagina, the upper silicone 101 and the lower silicone 104 can protect the patient's vagina. Then, the staff can manually press the second handle 110 and move it toward the first handle 105, so that the upper duckbill expansion piece 102 fixed on the top of the second handle 110 expands outward, thereby expanding the patient's vagina and providing a field of vision. At the same time, when the second handle 110 moves toward the first handle 105, the first rotating shaft 106 connected between the second handle 110 and the upper duckbill expansion piece 102 rotates forward to complete the expansion of the patient's vagina.
[0048] When the upper duckbill expansion piece 102 gradually expands the patient's vagina, a severe tearing sensation will be generated, causing blood or secretions to appear inside the patient's vagina. At this time, when the blood drips in the patient's vagina, the lower duckbill expansion piece 103 can receive the blood and guide it from the guide port 304 to the inside of the lower duckbill expansion piece 103, and then discharge it to the outside of the overall structure through the pipe 305;
[0049] Then, when the ratchet 201 rotates to drive the pawl 202 to abut against the ratchet teeth in the next pawl 202, the pawl 202 will swing, and during the swinging process, the second rotating shaft 203 will be driven to rotate. The rotation of the second rotating shaft 203 will synchronously drive the swing plate 301 and the hinge column 302 to move, so that the hinge column 302 connected to the moving plate 303 slides and wipes in the direction of the guide port 304 inside the lower duckbill expansion piece 103, which can prevent blood from accumulating in the guide port 304. When the lower duckbill expansion piece 103 is diverting blood, secretions may be blocked at the guide port 304, thereby increasing the blood diversion speed of the guide port 304;
[0050] After the medical staff completes the operation or suturing of the patient's vagina, the staff holds the second handle 110 and then drives the first rotating shaft 106 to rotate in the opposite direction, so that the pawl 202 does not fit with the ratchet teeth in the ratchet 201. The staff can then reset the second handle 110 to its initial position and retract the upper silicone 101 and the upper duckbill expansion piece 102, and then pull them out of the patient's vagina.
[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A visual field expander placed in a vagina, comprising an extension structure (100), characterized in that: An adjusting structure (200) for gradually expanding the extending structure (100) is disposed inside the extending structure (100), and an adjusting structure (200) for removing liquid is disposed on the surface of the adjusting structure (200); By pressing the extendable structure (100) to drive the adjustment structure (200) to rotate, the extendable structure (100) can be gradually expanded and the extendable structure (100) can be limited and stabilized, and at the same time, the liquid stored in the liquid guiding structure (300) can be diverted according to the expansion size of the extendable structure (100).
2. The visual field expander placed in the vagina according to claim 1, characterized in that: The extension structure (100) includes an upper silicone rubber (101), an upper duckbill expansion piece (102) for expanding the field of vision is arranged inside the upper silicone rubber (101), the upper silicone rubber (101) and the upper duckbill expansion piece (102) are detachably mounted, an operation window (108) is provided on the side of the upper duckbill expansion piece (102) for medical staff to detect wounds, and a second handle (110) is fixedly connected to one end of the upper duckbill expansion piece (102) close to the operation window (108) for easy pressing, and the upper duckbill expansion piece (102) and the second handle (110) are fixedly connected to each other. A first rotating shaft (106) is limited in position, and a first handle (105) is rotatably connected to the outer ring surface of the first rotating shaft (106). A limiting groove (109) is provided on the inner side of the first handle (105). A bolt structure (107) for fixing the expanded body is slidably connected inside the limiting groove (109). The bolt structure (107) passes through the second handle (110). A lower duckbill expansion piece (103) for expanding the field of vision is fixedly connected to the outer side of the first handle (105). A lower silicone gel (104) for protecting the patient is detachably installed on the outer ring surface of the lower duckbill expansion piece (103).
3. The visual field expander placed in the vagina according to claim 2, characterized in that: The adjustment structure (200) comprises a ratchet (201), wherein the ratchet (201) is fixedly connected to the outer ring surface of the first rotating shaft (106), and a pawl (202) for clamping the ratchet (201) is arranged against the outer ring surface of the ratchet (201), and a second rotating shaft (203) is fixedly connected to the inside of the pawl (202) away from the ratchet (201), and both ends of the second rotating shaft (203) are rotatably connected to the inner side of the first handle (105).
4. The visual field expander placed in the vagina according to claim 2, characterized in that: When the second handle (110) is not moving, the ratchet (201) and the pawl (202) fixed on the outer ring surface of the first rotating shaft (106) are in a state of abutment; when the second handle (110) is moving, the ratchet (201) and the pawl (202) fixed on the outer ring surface of the first rotating shaft (106) are in a state of not abutment.
5. The visual field expander placed in the vagina according to claim 3, characterized in that: The upper silicone (101) and the lower silicone (104) are both medical silicone, and the upper silicone (101) and the lower silicone (104) are both arc-shaped. The upper silicone (101) and the upper duckbill expansion piece (102) are compatible with the lower duckbill expansion piece (103) and the lower silicone (104). The second handle (110) fixed at the end of the upper duckbill expansion piece (102) is provided with a hole that is slidably compatible with the bolt structure (107), and the ratchet (201) fixed on the outer ring surface of the first rotating shaft (106) is compatible with the pawl (202).
6. The visual field expander placed in the vagina according to claim 1, characterized in that: The liquid guiding structure (300) comprises a swinging plate (301), wherein the swinging plates (301) are respectively fixedly connected to the outer annular surface of the second rotating shaft (203), a hinged column (302) is hingedly connected to the side of the swinging plate (301) away from the second rotating shaft (203), and a movable plate (303) for cleaning is fixedly connected to the end of the hinged column (302) away from the swinging plate (301), and the movable plate (303) is slidably connected to the inside of the lower duckbill expansion piece (103), and a pipe (305) for guiding liquid is fixedly connected through the side of the lower duckbill expansion piece (103) close to the swinging plate (301), and a guide port (304) is opened inside the side of the lower duckbill expansion piece (103) away from the pipe (305).
7. The visual field expander placed in the vagina according to claim 3, characterized in that: When the ratchet (201) is not rotating, the pawl (202) and the swing plate (301) fixed on the outer ring surface of the second rotating shaft (203) are in a non-swinging state; when the ratchet (201) is rotating, the pawl (202) and the swing plate (301) fixed on the outer ring surface of the second rotating shaft (203) are in a swinging state; when the swing plate (301) is not swinging, the movable plate (303) connected to the side of the swing plate (301) through the hinge column (302) is in a state away from the guide port (304); when the swing plate (301) is swinging, the movable plate (303) connected to the side of the swing plate (301) through the hinge column (302) is in a state of wiping the guide port (304).
8. The visual field expander placed in the vagina according to claim 6, characterized in that: The movable plate (303) slidably connected inside the lower duckbill expansion piece (103) is U-shaped, the interior of the lower duckbill expansion piece (103) is hollow, and the hinged column (302) and the swing plate (301) fixed on the side of the movable plate (303) away from the guide port (304) are respectively arranged in two groups.