Gynecological surgical cervical dilator

Abstract

The utility model discloses a gynecological operation cervical dilator, include: guide component, guide component includes hand held pole, the end fixed mounting of hand held pole expansion part, water injection expansion subassembly, including expansion hose, expansion hose runs through the inner wall sliding joint of hand held pole, expansion hose's head end is equipped with expansion part, the head end of expansion part is equipped with extrusion pipe, and expansion hose top connects water sump, relate to medical instrument technical field, and the doctor can pass through simple rotation operation, and the position of expansion hose in and out cervix is accurately controlled, and in combination water injection expansion subassembly, can flexible adjustment expansion degree and position of expansion part, the second hand wheel of water sump part, push rod and piston design, make things convenient for the doctor control liquid injection amount, realize accurate control to cervical dilatation process, improve the convenience and accuracy of operation operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a cervical dilator for gynecological surgery. Background Technology

[0002] In gynecological surgeries, such as induced abortion, hysteroscopy, and cervical conization, effective cervical dilation is necessary to ensure that surgical instruments can smoothly enter the uterine cavity for subsequent procedures. The effectiveness of cervical dilation is closely related to the success of the surgery and the patient's postoperative recovery.

[0003] Currently, commonly used cervical dilation tools in clinical practice mainly include metal dilators and cervical dilation balloons. Metal dilators are usually a series of rigid rod-shaped instruments of different sizes. Doctors need to use dilators of increasing size to gradually dilate the cervix according to the patient's cervical condition. This procedure is not only cumbersome and time-consuming, but also requires a high level of experience from the doctor. Slight mistakes can lead to serious complications such as cervical tearing and bleeding due to improper control of dilation force and speed, causing significant pain and safety risks to the patient. While cervical dilation balloons have improved the gentleness of dilation to some extent, existing balloon dilators have problems with positioning and precise control of the degree of dilation. Furthermore, the balloon's structural design may not conform well to the complex physiological structure inside the cervix, affecting the dilation effect and thus adversely impacting the success of the procedure. Utility Model Content

[0004] The purpose of this invention is to provide a cervical dilator for gynecological surgery to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Gynecological surgical cervical dilators, including:

[0007] A guide assembly, the guide assembly including a hand handle, the end of which is fixedly mounted with an expansion portion;

[0008] The water expansion assembly includes an expansion hose that slides through the inner wall of the handle and the expansion section. The expansion hose has an expansion section at its head end and an extrusion tube at its head end. The top of the expansion hose is connected to a water tank.

[0009] In a preferred embodiment of this utility model, the hand handle is a rigid hollow structure, both ends of the expansion portion are set as conical, the end of the expansion portion near the extrusion tube is the small end, and the end of the expansion portion near the hand handle is the large end.

[0010] In a preferred embodiment of this invention, the rear end of the handheld lever is threadedly connected to a threaded tube, the inner wall of which has a through hole, and a flexible water guide tube connects the water tank and the expansion hose.

[0011] In a preferred embodiment of this invention, a screw cylinder is threadedly connected to the inner wall of the threaded tube, and a rotating rod is fixedly installed in the middle of the inner wall of the screw cylinder. The rotating rod is rotatably connected to the tail end of the expansion hose.

[0012] In a preferred embodiment of this invention, a first handwheel is fixedly installed at the end of the rotating rod, and the rotating rod and the screw cylinder rotate synchronously to push the dilating tube into and out of the cervix.

[0013] In a preferred embodiment of this utility model, the water tank is fixedly installed on the top outer wall of the handheld handle, the bottom inner wall of the water tank is provided with a viewing window, and the top of the water tank is threadedly sealed to a top cover.

[0014] In a preferred embodiment of this utility model, a push rod is threadedly connected to the inner wall of the top cover, a second handwheel is fixedly installed on the top of the push rod, and a piston is fixedly installed on the outer wall of the bottom end of the push rod. The piston is slidably and sealingly connected to the inner wall of the water tank.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0016] 1. By incorporating a first handwheel, rotating rod, and screw cylinder, doctors can precisely control the position of the dilation tube entering and exiting the cervix through simple rotation. Combined with the water-filled dilation component, the degree and position of the dilation section can be flexibly adjusted. Meanwhile, the second handwheel, push rod, and piston design of the water tank section facilitates control of the amount of liquid injected, and the viewing window helps to observe the remaining liquid in the water tank, enabling precise control of the cervical dilation process and improving the convenience and accuracy of the surgical procedure.

[0017] 2. The method of using water to expand the dilatation section is gentler on the cervix than traditional rigid dilators, reducing mechanical damage to cervical tissue. The conical ends of the dilatation section and the design of the large and small heads of the dilatation section conform to the internal structure of the cervix, further reducing the risk of irritation and damage to the cervix. At the same time, the rigid hollow handle provides stable support, ensuring the safety of the operation and helping to reduce patient pain and postoperative complications. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1A schematic diagram of the main structure of a cervical dilator used in gynecological surgery.

[0020] Figure 2 A schematic diagram of the dilator section in a cervical dilator used in gynecological surgery.

[0021] Figure 3 A schematic diagram of the telescopic tube structure in a cervical dilator used in gynecological surgery.

[0022] Figure 4 This is a schematic diagram of the water-injection expansion component in a cervical dilator used in gynecological surgery.

[0023] In the diagram: Hand lever 100, expansion section 110, threaded tube 120, through hole 121, screw cylinder 200, rotating rod 210, first handwheel 211, expansion hose 220, expansion section 230, extrusion tube 231, water tank 240, viewing window 241, flexible water guide tube 242, top cover 250, push rod 251, piston 252, second handwheel 253. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] Example 1: As Figure 1-4 ,include:

[0026] The guide assembly includes a hand lever 100, and an expansion portion 110 is fixedly mounted at the end of the hand lever 100.

[0027] The water expansion assembly includes an expansion hose 220, which slidably connects to the inner wall of the handle 100 and the expansion section 110. The expansion hose 220 has an expansion section 230 at its head end, and an extrusion tube 231 at its head end. The top of the expansion hose 220 is connected to a water tank 240.

[0028] The specific application scenario of this embodiment is as follows: the guide component and the water-filled expansion component work together to complete the cervical dilation work. The doctor holds the handheld rod 100 and uses the guiding effect of the dilation part 110 to accurately place the entire dilator at the cervix. Then, by injecting liquid into the water tank 240, the liquid flows into the expansion part 230 through the dilation tube 220, causing the expansion part 230 to expand inside the cervix, thereby achieving the initial dilation of the cervix. The insertion tube 231 assists the liquid to flow smoothly into the expansion part 230 to ensure the dilation effect.

[0029] Example 2: Figures 1-3The handheld rod 100 has a rigid hollow structure. Both ends of the expansion section 100 are tapered. The end of the expansion section 230 near the extrusion tube 231 is a small end, and the end of the expansion section 230 near the handheld rod 100 is a large end. The rear end of the handheld rod 100 is threadedly connected to a threaded tube 120. A through hole 121 is opened in the inner wall of the threaded tube 120. A flexible water guide tube 242 is connected between the water tank 240 and the dilation tube 220. A screw cylinder 200 is threadedly connected to the inner wall of the threaded tube 120. A rotating rod 210 is fixedly installed in the middle of the inner wall of the screw cylinder 200. The rotating rod 210 is rotatably connected to the tail of the dilation tube 220. A first handwheel 211 is fixedly installed at the end of the rotating rod 210. The rotating rod 210 and the screw cylinder 200 rotate synchronously to push the dilation tube 220 into and out of the cervix.

[0030] The specific application scenario of this embodiment is as follows: A precise control structure for the entry and exit of the dilation tube 220 into and out of the cervix is ​​added. When it is necessary to adjust the position of the dilation tube 220 in the cervix, the doctor turns the first handwheel 211, which drives the rotating rod 210 and the screw barrel 200 to rotate synchronously. Since the screw barrel 200 is threadedly connected to the inner wall of the threaded tube 120, the rotating screw barrel 200 will move along the inner wall of the threaded tube 120, thereby pushing the dilation tube 220 into and out of the cervix. The rigid hollow structure of the hand rod 100 provides a channel for the movement of the dilation tube 220, and its rigidity ensures the stability during operation. The tapered design at both ends of the dilation part 110 facilitates the entry of the dilator into the cervix and plays a guiding role when the dilation tube 220 moves. The large and small head design of the expansion part 230 can better adapt to the internal structure of the cervix and achieve a more fitting and effective dilation. At the same time, the flexible water guide tube 242 between the water tank 240 and the dilation tube 220 ensures that the liquid can flow smoothly during the movement of the dilation tube 220.

[0031] Example 3: Figure 1 and Figure 4 The water tank 240 is fixedly installed on the top outer wall of the handheld handle 100. The bottom inner wall of the water tank 240 is provided with a viewing window 241. The top of the water tank 240 is threadedly sealed to the top cover 250.

[0032] The inner wall of the top cover 250 is threadedly connected to the push rod 251. The top of the push rod 251 is fixedly mounted with a second handwheel 253. The bottom outer wall of the push rod 251 is fixedly mounted with a piston 252. The piston 252 is slidably and sealingly connected to the inner wall of the water tank 240.

[0033] The specific application scenario of this embodiment is as follows: The doctor rotates the second handwheel 253, which drives the push rod 251 to rotate. Since the push rod 251 is threadedly connected to the inner wall of the top cover 250, the rotating push rod 251 will move up and down along the inner wall of the top cover 250, thereby driving the piston 252 to slide on the inner wall of the water tank 240. When the second handwheel 253 is rotated upward, the push rod 251 drives the piston 252 to move upward, increasing the space inside the water tank 240. Liquid can be injected into the water tank 240 by opening the top cover 250. When the second handwheel 253 is rotated downward, the push rod 251 drives the piston 252 to move downward, squeezing the liquid inside the water tank 240. The liquid flows into the expansion part 230 through the flexible water guide tube 242 and the dilation tube 220, achieving further dilation of the cervix or maintaining the current dilation state. The viewing window 241 on the inner wall of the bottom of the water tank 240 allows the doctor to observe the remaining amount of liquid in the water tank 240, so as to replenish the liquid or adjust the operation in time, ensuring the smooth progress of the dilation process.

[0034] The working principle of this utility model is as follows: In use, the doctor first holds the handheld rod 100 and, utilizing the tapered design at both ends of the dilator 110, accurately guides and inserts the dilator into the cervix. Then, if liquid needs to be injected to dilate the cervix using the dilator 230, the second handwheel 253 is rotated to move the push rod 251 and piston 252, squeezing the liquid in the water tank 240. The liquid flows into the dilator 230 through the flexible water guide tube 242 and the dilator hose 220, achieving initial dilation. By controlling the piston 252 to rise, the space inside the water tank 240 is increased, allowing water to flow back into the water tank 240 under negative pressure, thus increasing the dilation of the cervix in the dilator 230. After the water flows back, the diameter decreases, making it easier to remove the expansion part 230 from the cervix. During the dilation process, if it is necessary to adjust the position of the dilation tube 220 inside the cervix, the doctor can turn the first handwheel 211 to drive the rotating rod 210 and the screw cylinder 200 to rotate synchronously. Due to the threaded connection between the screw cylinder 200 and the threaded tube 120, the screw cylinder 200 moves along the inner wall of the threaded tube 120, thereby accurately pushing the dilation tube 220 in and out of the cervix, ensuring that the expansion part 230 plays its role in the appropriate position. Throughout the process, the rigid hollow structure of the hand rod 100 provides stable support and channel for the operation of each component. All components work closely together to complete the cervical dilation work.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A cervical dilator for gynecological surgery, characterized in that, include: A guide assembly, the guide assembly including a hand handle (100), the end of which is fixedly mounted with an expansion portion (110); The water filling expansion assembly includes an expansion hose (220), which is slidably connected through the inner wall of the hand handle (100) and the expansion part (110). The head end of the expansion hose (220) is provided with an expansion part (230), and the head end of the expansion part (230) is provided with an extrusion tube (231). The top of the expansion hose (220) is connected to the water tank (240).

2. The cervical dilator for gynecological surgery according to claim 1, characterized in that, The handheld lever (100) has a rigid hollow structure. Both ends of the expansion portion (110) are tapered. The end of the expansion portion (230) near the extrusion tube (231) is the small end, and the end of the expansion portion (230) near the handheld lever (100) is the large end.

3. The gynecological surgical cervical dilator in accordance with claim 2, wherein, The rear end of the handheld lever (100) is threadedly connected to a threaded tube (120), and the inner wall of the threaded tube (120) is provided with a through hole (121). A flexible water guide tube (242) is connected between the water tank (240) and the expansion hose (220).

4. The cervical dilator for gynecological surgery according to claim 3, characterized in that, The inner wall of the threaded tube (120) is threadedly connected to the screw cylinder (200), and a rotating rod (210) is fixedly installed in the middle of the inner wall of the screw cylinder (200). The rotating rod (210) is rotatably connected to the tail of the expansion hose (220).

5. The gynecological surgical cervical dilator in accordance with claim 4, wherein, The first handwheel (211) is fixedly installed at the end of the rotating rod (210), and the rotating rod (210) and the screw cylinder (200) rotate synchronously to push the dilation tube (220) into and out of the cervix.

6. The cervical dilator for gynecological surgery according to claim 1, characterized in that, The water tank (240) is fixedly installed on the top outer wall of the handheld rod (100), and the bottom inner wall of the water tank (240) is provided with a viewing window (241). The top of the water tank (240) is threadedly sealed to the top cover (250).

7. The cervical dilator for gynecological surgery according to claim 6, characterized in that, The inner wall of the top cover (250) is threadedly connected to a push rod (251), a second handwheel (253) is fixedly installed on the top of the push rod (251), and a piston (252) is fixedly installed on the outer wall of the bottom end of the push rod (251). The piston (252) is slidably and sealingly connected to the inner wall of the water tank (240).

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