Clinical operation expander for anorectal department
By rotating the screw to drive the telescopic rod and the protective plate to contact and expand the inner wall of the rectum, the problem of insertion injury of the dilator in the existing technology of anorectal surgery is solved, and greater comfort and practicality are achieved.
Patent Information
- Application Number
- CN202422794478.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-16
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-11-16
AI Technical Summary
Existing surgical dilators for anorectal surgery may cause injury to the patient's rectum during the dilation process, resulting in insufficient comfort.
A surgical dilator for clinical use in proctology was designed. It uses a rotating screw to drive a telescopic rod to rotate, and uses a protective plate to contact the inner wall of the patient's rectum for dilation. The combination of lubricating oil and anti-slip coating improves the comfort of operation.
It improves patient comfort and the practicality of the device during the expansion process, and avoids damage caused by direct insertion of the stent into the anorectal cavity.
Smart Images

Figure CN223695924U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dilators, specifically a surgical dilator for clinical use in anorectal surgery. Background Technology
[0002] The Department of Proctology specializes in the research and treatment of constipation, anal fissures, anal fistulas, anal abscesses, anal stenosis, hypertrophic anal papillae, perianal eczema, mixed hemorrhoids, internal hemorrhoids, and external hemorrhoids. Its research scope mainly focuses on diseases occurring in the organs at the end of the digestive tract, between the anus and the rectum (8-12 cm). With the development of medicine, various medical devices are being developed and introduced into medical use, among which surgical dilators are one type of medical device.
[0003] For example, a search revealed a utility model patent in China with publication number CN211796659U: a surgical dilator for proctology, comprising a mounting ring, an inner mounting sleeve fixedly connected to the side of the mounting ring, a fixed suction cup fixedly connected to the other end of the support rod, and a lighting head fixedly connected to the back of the mounting ring. This medical device can fix the entire dilator to the patient using the suction capacity of the fixed suction cup, greatly reducing the difficulty of surgery. It can provide lighting for the doctor during surgery, facilitating precise location of the surgical site. It can also heat the contact area between the dilator and the patient, preventing the dilator from scratching the patient and ensuring safety during use. It also greatly improves user comfort, allows for adjustment of the dilator for easier surgery, and is simple to use.
[0004] However, the existing devices described above still have the following problems in actual use:
[0005] The aforementioned device has limited adjustment capabilities of the dilator rod during the dilation of the patient's rectum, which may cause injury to the patient during the initial insertion of the dilator rod, reducing the patient's comfort during dilation. Therefore, we propose a surgical dilator for clinical use in proctology to solve the above-mentioned problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this invention provides a surgical dilator for anorectal surgery that avoids insertion into the patient's rectum after the device supports have expanded, allowing the device to perform dilation operations after insertion into the patient's rectum. This improves patient comfort during dilation and enhances the practicality of the device for clinical use in anorectal surgery.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a surgical dilator for clinical use in anorectal surgery, comprising a fixed plate, a rotating cylinder rotatably mounted at the bottom end of the fixed plate, a screw screwed inside the rotating cylinder, a telescopic rod rotatably mounted at the top end of the screw, a buffer block rotatably mounted at the top end of the telescopic rod, a through hole opened in the middle area of the fixed plate, the screw located inside the through hole, and multiple support mechanisms provided at the top end of the fixed plate;
[0010] The support mechanism includes a guard plate, the inner wall of which is connected to the outer wall of the telescopic rod via multiple rotating mechanisms;
[0011] The rotating mechanism includes a rotating rod, one end of which is rotatably connected to the inner wall of the guard plate, and the other end of which is rotatably connected to the outer wall of the telescopic rod through multiple connecting rods.
[0012] Each guard plate is equipped with a limit mechanism inside;
[0013] The limiting mechanism includes a connecting plate, which is fixedly installed on the top of the fixed plate. A fixed column is horizontally fixedly installed on the outer side wall of the connecting plate. A sliding rod is slidably installed on the other end of the fixed column, and the other end of the sliding rod is fixedly connected to the inner side wall of the guard plate.
[0014] Preferably, multiple handles are fixedly installed around the outer side wall of the rotating cylinder.
[0015] Furthermore, the fixing plate has multiple first through holes.
[0016] Furthermore, the bottom end of the buffer block is provided with multiple second through holes.
[0017] Based on the aforementioned scheme, each of the protective plates has its outer side wall coated with lubricating oil.
[0018] Furthermore, the outer side wall of each handle is coated with an anti-slip coating.
[0019] (III) Beneficial Effects
[0020] Compared with the prior art, this utility model provides a surgical dilator for clinical use in proctology, which has the following beneficial effects:
[0021] This surgical dilator for clinical use in proctology rotates a screw while simultaneously driving a telescopic rod to rotate. This causes the protective plates to move laterally via a limiting mechanism after being transmitted through the rotating and connecting rods. Each protective plate contacts the inner wall of the patient's rectum, thus dilating the rectum. This facilitates examination by the doctor and avoids inserting the device support into the rectum after dilation. The device performs dilation only after insertion into the rectum, improving patient comfort and enhancing its practicality. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a schematic cross-sectional view of the present invention.
[0024] Figure 3 This utility model Figure 1 Enlarged structural diagram of section A in the middle;
[0025] Figure 4 This utility model Figure 1 A magnified structural diagram of section B.
[0026] The following are labels in the attached diagram: 1. Fixing plate; 2. Screw; 3. Buffer block; 4. Protective plate; 5. Rotating rod; 6. Connecting rod; 7. Rotating cylinder; 8. Connecting plate; 9. Fixing column; 10. Sliding rod; 11. Handle; 12. First through hole; 13. Second through hole; 31. Telescopic rod. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Example 1
[0029] Please see Figure 1-4 A surgical dilator for clinical use in anorectal surgery includes a fixed plate 1. A rotating cylinder 7 is rotatably mounted on the bottom end of the fixed plate 1. Multiple handles 11 are fixedly mounted around the outer side of the rotating cylinder 7, facilitating rotation of the cylinder 7 by the user. A screw 2 is screwed into the inside of the rotating cylinder 7. A telescopic rod 31 is rotatably mounted on the top end of the screw 2. A buffer block 3 is rotatably mounted on the top end of the telescopic rod 31. A through hole is formed in the middle area of the fixed plate 1, and the screw 2 is located inside the through hole. Multiple support mechanisms are provided at the top end of the fixed plate 1. Multiple first through holes 12 are formed through the fixed plate 1, facilitating observation of the patient's anorectal cavity by the user.
[0030] Please see Figure 1-4The support mechanism includes a guard plate 4, the inner wall of which is connected to the outer wall of the telescopic rod 31 via multiple rotating mechanisms; the rotating mechanism includes a rotating rod 5, one end of which is rotatably connected to the inner wall of the guard plate 4, and the other end of which is rotatably connected to the outer wall of the telescopic rod 31 via multiple connecting rods 6; each guard plate 4 is provided with a limiting mechanism; the limiting mechanism includes a connecting plate 8, which is fixedly installed on the top of the fixed plate 1, and a fixing post 9 is horizontally fixedly installed on the outer wall of the connecting plate 8, and a sliding rod 10 is slidably installed on the other end of the fixing post 9, the other end of which is connected to the guard plate. The inner wall of the device is fixedly connected. This surgical dilator for proctology uses a rotating screw 2 to simultaneously drive the telescopic rod 31 to rotate. This causes the guard plate 4 to move laterally through a limiting mechanism after being transmitted by the rotating rod 5 and the connecting rod 6. Each guard plate 4 contacts the inner wall of the patient's rectum, thereby dilating the rectum. This facilitates the doctor's examination of the patient's rectum and avoids the device being inserted into the patient's rectum after dilation. The device is inserted into the patient's rectum before dilation, which improves the patient's comfort and practicality during dilation.
[0031] Please see Figure 2 It should also be noted that the bottom of the buffer block 3 is provided with multiple second through holes 13. By providing the second through holes 13, it is convenient for the user to observe the inside of the patient's anorectal cavity.
[0032] Each protective plate 4 has a lubricating oil coating on its outer side wall, which facilitates the insertion of the device into the patient's body.
[0033] Each handle 11 has an anti-slip coating on its outer side wall, which makes it easier for the user to rotate the rotating cylinder 7.
[0034] Example 2
[0035] Please see Figure 1-4A surgical dilator for clinical use in anorectal surgery includes a fixed plate 1. A rotating cylinder 7 is rotatably mounted on the bottom end of the fixed plate 1. Multiple handles 11 are fixedly mounted around the outer side wall of the rotating cylinder 7, facilitating rotation of the rotating cylinder 7 by the user. A screw 2 is screwed into the inside of the rotating cylinder 7. A telescopic rod 31 is rotatably mounted on the top end of the screw 2. A buffer block 3 is rotatably mounted on the top end of the telescopic rod 31. A through hole is opened in the middle area of the fixed plate 1, and the screw 2 is located inside the through hole. Multiple support mechanisms are provided at the top end of the fixed plate 1. The support mechanism includes a protective plate 4, the inner side wall of which is connected to the outer side wall of the telescopic rod 31 through multiple rotating mechanisms. The rotating mechanism includes a rotating rod 5, one end of which is rotatably connected to the inner side wall of the protective plate 4, and the other end of which is rotatably connected to the outer side wall of the telescopic rod 31 through multiple connecting rods 6. Each protective plate 4 has a limiting mechanism inside. The limiting mechanism includes a connecting plate 8, which is fixedly mounted on the top end of the fixed plate 1. A fixing post 9 is horizontally fixedly installed on the outer wall, and a sliding rod 10 is slidably installed at the other end of the fixing post 9. The other end of the sliding rod 10 is fixedly connected to the inner wall of the guard plate 4. This surgical dilator for proctology clinical use rotates the screw 2 and simultaneously drives the telescopic rod 31 to rotate, thereby causing the guard plate 4 to move laterally through the limiting mechanism after being transmitted by the rotating rod 5 and the connecting rod 6. Each guard plate 4 contacts the inner wall of the patient's anus and rectum, thereby dilating the anus and rectum. This facilitates the doctor's examination of the patient's anus and rectum, and avoids the device support being inserted into the patient's anus and rectum after dilation. The device is inserted into the patient's anus and rectum to perform dilation operations, which improves the patient's comfort when the device is used to dilate the anus and rectum, and improves its practicality.
[0036] In summary, when using this proctology surgical dilator, one end of the buffer block 3 is slowly inserted into the patient's anus, allowing the entire device to be slowly inserted into the patient's body. Since the rotating cylinder 7 and the screw 2 are screwed together, rotating the rotating cylinder 7 simultaneously drives the screw 2 to rotate. Simultaneously, the rotation of the screw 2 drives the telescopic rod 31 to move laterally. Simultaneously, the movement of the telescopic rod 31 drives the rotating rod 5 and the connecting rod 6 to laterally dilate the protective plate 4. Simultaneously, the movement of the protective plate 4 drives the sliding rod 10 to slide on the fixed post 9. The connecting plate 8, the fixed post 9, and the sliding rod 10 then limit the movement of the protective plate 4. Each protective plate 4 contacts the patient's anus, thus dilating the anal cavity. The patient can then be examined through the first through hole 12, the second through hole 13, and the gaps between each protective plate 4.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A surgical dilator for clinical use in anorectal surgery, comprising a fixing plate (1), characterized in that: A rotating cylinder (7) is rotatably installed at the bottom end of the fixed plate (1). A screw rod (2) is screwed inside the rotating cylinder (7). A telescopic rod (31) is rotatably installed at the top end of the screw rod (2). A buffer block (3) is rotatably installed at the top end of the telescopic rod (31). A through hole is opened in the middle area of the fixed plate (1). The screw rod (2) is located inside the through hole. Multiple support mechanisms are provided at the top end of the fixed plate (1). The support mechanism includes a guard plate (4), the inner wall of which is connected to the outer wall of the telescopic rod (31) through multiple rotating mechanisms; The rotating mechanism includes a rotating rod (5), one end of which is rotatably connected to the inner wall of the guard plate (4), and the other end of which is rotatably connected to the outer wall of the telescopic rod (31) through multiple connecting rods (6). Each guard plate (4) is equipped with a limit mechanism inside; The limiting mechanism includes a connecting plate (8), which is fixedly installed on the top of the fixed plate (1). A fixed column (9) is horizontally fixedly installed on the outer side wall of the connecting plate (8). A sliding rod (10) is slidably installed on the other end of the fixed column (9). The other end of the sliding rod (10) is fixedly connected to the inner side wall of the guard plate (4).
2. The surgical dilator for clinical use in anorectal surgery according to claim 1, characterized in that: Multiple handles (11) are fixedly installed around the outer side wall of the rotating cylinder (7).
3. The surgical dilator for clinical use in anorectal surgery according to claim 2, characterized in that: The fixing plate (1) has multiple first through holes (12) through it.
4. The surgical dilator for clinical use in anorectal surgery according to claim 3, characterized in that: The bottom end of the buffer block (3) is provided with multiple second through holes (13).
5. A surgical dilator for clinical use in anorectal surgery according to claim 4, characterized in that: Each of the protective plates (4) has its outer side wall coated with lubricating oil.
6. The surgical dilator for clinical use in anorectal surgery according to claim 5, characterized in that: Each of the handles (11) has an anti-slip coating on its outer side wall.
Citation Information
Patent Citations
Clinical operation expanding and supporting device for anorectal department
CN211796659U
Cited By
Anorectal operation auxiliary device and method
CN121549860A