Variable-diameter soft hysteroscope based on self-growing mode

Abstract

The invention relates to the technical field of cervix uteri, in particular to a variable-diameter soft hysteroscope based on a self-growing mode. In order to avoid the painful feeling and even scrape and damage tissue caused by the fact that an existing hysteroscope is rigidly and directly inserted into a human body and rubs with the inner wall of a cavity, a variable-diameter hysteroscope body film is inflated to support a natural cavity instead of vaginal dilation and cervix dilation equipment, and a channel is reserved for the tip end of the body to enter the uterine cavity. The problem that the diagnosis and treatment process is tedious in a traditional hysteroscope diagnosis and treatment mode is solved, and the outpatient diagnosis and treatment technology of the uterine cavity is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of hysteroscopes, and more particularly to a self-growing variable-diameter soft hysteroscope. Background Art

[0002] Gynecological reproductive cavity inflammation has long been an important disease that affects women's health and has a broad potential population market. With the increase in the number of uterine cavity diseases, there is an urgent need to develop outpatient uterine cavity diagnosis and treatment technologies that can reduce patient waiting time and improve the utilization rate of medical resources. Traditional hysteroscopes are limited by their inherent rigid structure and hard materials, and require surgical pretreatment. Mechanical dilators are used to dilate the vagina and uterine cervix in advance. The hysteroscope is held by the doctor and directly inserted into the patient's uterus. During the diagnosis and treatment operation, the hysteroscope that occupies the mainstream market has no independent freedom and can only be rotated, tilted, and swung by the doctor at the back end. The whole process will cause great pain to the patient and require hospitalization. Summary of the invention

[0003] The present invention provides a variable diameter soft hysteroscope based on a self-growth mode, the purpose of which is to enable non-destructive and non-injurious diagnosis of uterine cavity diseases by hysteroscopy and to promote the outpatient technology of uterine cavity diagnosis and treatment.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A variable diameter soft hysteroscope based on self-growth mode comprises a hysteroscope main body film, a main body hose is arranged inside the hysteroscope main body film, the left part of the hysteroscope main body film is fixedly connected to the left part of the main body hose, at least three flexible wires are evenly distributed in the circumference of the main body hose, the left part of each flexible wire is fixedly connected to the main body hose, and also comprises a driving device, the driving device is connected to the hysteroscope main body film, the driving device is used to control the extension length of each flexible wire, and control the linear displacement of the main body hose and the flexible wire, and control the amount of gas in the hysteroscope main body film.

[0006] The main membrane of the hysteroscope is made of a flexible material that is biocompatible and can be everted.

[0007] The main film of the hysteroscope is an integrated cylindrical structure with an expanded diameter section on the right side. The expanded diameter section on the right side of the main film of the hysteroscope has a larger diameter and is a primary film, while the diameter on the left side of the main film of the hysteroscope is smaller and is a secondary film.

[0008] The main body membrane of the hysteroscope has a circular chamfer at the expanded diameter to achieve a smooth transition.

[0009] The main hose is an integrally formed flexible hose with a multi-pore structure and a large aspect ratio.

[0010] A first channel is arranged at the center of the main hose, and a plurality of second channels are evenly distributed around the circumference of the first channel on the main hose. Each flexible wire of the main hose is buried in a second channel. A tip carrying device is fixedly connected to the left end of the main hose. When the film of the main body of the hysteroscope is filled with gas, it forms an air bag shape and wraps around the main hose and the tip carrying device. A plurality of holes are opened on the tip carrying device. Different holes are used to tightly fit the camera, water inlet pipe, water outlet pipe, LED light source or / and medical device pipe. The medical device can be extended out of the operator's hand through the first channel.

[0011] The driving device includes a clamping ring and a linear module fixedly connected to the clamping ring. The clamping ring connects the main film of the hysteroscope and the linear module together, so that the outer shell of the linear module and the main film of the hysteroscope are connected and parallel to form a cavity. The cavity includes a steering drive device that is driven by the linear module to achieve left and right movement, and an air pump fixedly connected to the right part of the linear module.

[0012] The steering drive device includes a fixed frame connected to the linear module, and motors fixed to the fixed frame with the same number as the flexible lines. The motors are used to adjust the winding and releasing of the flexible lines. The right part of the main hose is fixed to the fixed frame.

[0013] The motor shaft of the motor extends out of the fixing frame from top to bottom, and each motor shaft is fixedly connected to a motor shaft cap, each flexible line extends out of the right part of the main hose and is fixedly connected to a motor shaft cap, the main hose passes through the fixing frame, a clamping mechanism is fixedly connected to the fixing frame, and the main hose is fixedly connected to the clamping mechanism.

[0014] Each motor is matched with a sensor.

[0015] The beneficial effects of the variable diameter soft hysteroscope based on the self-growth mode of the present invention are:

[0016] To avoid the existing rigid hysteroscope that is directly inserted into the human body and causes pain or even scratches and damage to tissues due to friction with the inner wall of the cavity, the variable diameter soft hysteroscope based on self-growth replaces the vaginal and cervical dilation equipment with an inflated thin film of the variable diameter hysteroscope body to support the natural cavity, reserving a channel for the tip of the body to enter the uterine cavity, solving the problem of cumbersome diagnosis and treatment procedures caused by the traditional hysteroscopic diagnosis and treatment model, and promoting the outpatientization of uterine cavity diagnosis and treatment technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a variable diameter soft hysteroscope based on a self-growth mode of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the main body tip carrying device;

[0020] Figure 4 It is a schematic diagram of the growth process of the present invention;

[0021] Figure 5 is the location of the flexible line and a schematic diagram of the steering drive.

[0022] In the figure: 1. hysteroscope main body film; 2. main body hose; 21. flexible line; 3. main body tip carrying device; 4. rear end driving device; 41. clamping ring; 42. linear module; 43. steering driving device; 44. air pump; 45. fixing frame; 46. clamping mechanism; 47. motor shaft cap. DETAILED DESCRIPTION

[0023] A variable diameter soft hysteroscope based on self-growth mode, e.g. Figures 1 to 3 , including a hysteroscope main body film 1 with ultra-thin and soft characteristics, preferably a biocompatible eversion soft material, such as polyurethane and polyimide. The hysteroscope main body film 1 is an integrated cylindrical structure, and has an expanded diameter section on the right side, and has a circular arc chamfer feature at the expanded diameter to achieve a smooth transition. For ease of description, the expanded diameter section on the right side of the hysteroscope main body film 1 has a larger diameter and is a primary film. The diameter on the left side of the hysteroscope main body film 1 is smaller and is a secondary film.

[0024] Further explained, a main hose 2 is arranged inside the main film 1 of the hysteroscope, and the left part of the inner wall of the primary film is fixedly connected to the left end of the outer wall of the main hose 2. The main hose 2 is an integrally formed flexible hose with a multi-channel structure. Preferably, the aspect ratio of the main hose 2 is greater than 100. A first channel is arranged at the center of the main hose 2, and three second channels are evenly distributed on the main hose 2 around the circumference of the first channel. A flexible wire 21 is embedded in each second channel of the main hose 2, and the left part of the flexible wire 21 is fixedly connected to the main hose 2.

[0025] Further explained, the left end of the main hose 2 is fixedly connected with a tip carrying device 3, and the main film 1 of the hysteroscope is filled with gas, so that the secondary film forms an airbag-like package to protect the main hose 2 and the tip carrying device 3, which plays a role in avoiding scratches with surrounding biological tissues. The tip carrying device 3 is provided with a plurality of holes with different size characteristics, and holes of different sizes and shapes can be used to carry equipment with different functional purposes through tight fit, such as carrying cameras, water inlet / outlet pipes, LED light sources, and medical equipment pipes. Preferably, the pipelines of the equipment are divided into two groups, one group is the signal line of the camera, and the other group is the power line of the LED. The two groups of lines are wrapped together by an insulating layer to form a wire, which runs in the first channel of the main hose 2, and the medical equipment can pass through the first channel of the main hose 2 and stick out the operator from the hole, and the operator is used for surgical operations.

[0026] Further explanation, combined with Figure 4 and Figure 5 , and also includes a driving device 4, which includes a clamping ring 41 fixed to the right end of the primary film, and a linear module 42 fixed to the clamping ring 41. The clamping ring 41 connects the hysteroscope main film 1 and the linear module 42 together, so that the shell of the linear module 42 and the hysteroscope main film 1 are connected and parallel to form a cavity. In the cavity, there is a steering drive device 43 driven by the linear module 42 to achieve left and right movement, and an air pump 44 fixed to the right part of the linear module 42. When working, the air pump 44 is turned on, and the external gas is filled into the hysteroscope main film 1 from the cavity, and the pressure increases to a certain level to drive the hysteroscope main film 1 to grow outward.

[0027] The steering drive device 43 includes a fixed frame 45 connected to the linear module 42, so that the fixed frame 45 can be driven by the linear module 42 to move left and right. When the fixed frame 45 moves to the right, it can pull the main film 1 of the hysteroscope to turn inward, so that the secondary film is put into the primary film to complete hidden storage; and three independently controllable motors fixed to the fixed frame 45, each motor is matched with a sensor, the motor shaft of the motor extends from the fixed frame 45 from top to bottom, and each motor shaft is fixed with a motor shaft cap 47, and three flexible wires 21 extend out of the right part of the main hose 2 and are respectively wound and fastened on the three motor shaft caps 47. The main hose 2 passes through the fixed frame 45, and a clamping mechanism 46 is fixed to the fixed frame 45 by bolt connection. The main hose 2 is fixed in the clamping mechanism 46 by clamping.

[0028] As the motor rotates, the flexible wire 21 is tightened and contracted or relaxed and extended, and the sensor inside the device can obtain the rotation angle of the motor in real time, and then calculate the length of the winding line, and finally obtain the bending angle of the main hose 2. Since the steering drive device 43 moves back and forth synchronously with the main hose 2, the length of the flexible wire 21 does not change due to the growth movement of the main film 1 of the hysteroscope, ensuring that the tightening and contraction of the flexible wire 21 directly controls the steering movement of the main hose 2, and only affects the bending angle of the main hose 2. The three circumferentially arranged flexible wires 21 can drive the main hose 2 to bend in all directions, and the main film 1 of the hysteroscope wrapped in the outer layer of the hose also produces wrinkles and bends, and finally realizes the spatial arbitrary angle steering of the variable diameter soft hysteroscope based on the self-growth mode.

[0029] For example Figure 4, showing the growth process of the variable diameter soft hysteroscope based on the self-growth mode. When the driving device 4 is working, the internal air pump 44 generates gas. Driven by the air pressure, the first and second level films 1 grow outward in turn, and at the same time drive the main hose 2 to move forward, and the linear module 42 moves forward in coordination. During the growth process of the hysteroscope body, the hysteroscope main body film 1, the main hose 2, and the steering drive device 43 always keep synchronous movement. The main hose 2 is always nested inside the hysteroscope main body film 1 until the growth movement ends. This action is conducive to the left part of the variable diameter soft hysteroscope based on the self-growth mode entering the uterus. The main tip carrying device 3 reaches the free end (left part) of the main hose 2. There is no obstruction at the front of the camera, and it has a wide field of view.

Claims

1. A variable diameter soft hysteroscope based on a self-growth method, comprising a hysteroscope main body film (1), a main body hose (2) is arranged inside the hysteroscope main body film (1), the left part of the hysteroscope main body film (1) is fixedly connected to the left part of the main body hose (2), at least three flexible wires (21) are evenly distributed around the circumference inside the main body hose (2), and the left part of each flexible wire (21) is fixedly connected to the main body hose (2), and also comprises a driving device (4), the driving device (4) is connected to the hysteroscope main body film (1), and the driving device (4) is used to control the extension length of each flexible wire (21), control the linear displacement of the main body hose (2) and the flexible wire (21), and control the amount of gas in the hysteroscope main body film (1).

2. According to the variable diameter soft hysteroscope based on self-growth method as described in claim 1, the main film (1) of the hysteroscope is a flexible material that is biocompatible and can be everted.

3. According to the variable diameter soft hysteroscope based on self-growth method as described in claim 1, the main film (1) of the hysteroscope is an integrated cylindrical structure, and has an expanded diameter section on the right side. The expanded diameter section on the right side of the main film (1) of the hysteroscope has a larger diameter and is a primary film, while the diameter on the left side of the main film (1) of the hysteroscope has a smaller diameter and is a secondary film.

4. According to the variable diameter soft hysteroscope based on self-growth method as described in claim 3, the main film (1) of the hysteroscope has a circular chamfer at the expanded diameter to achieve a smooth transition.

5. According to the variable diameter soft hysteroscope based on self-growth method as described in claim 1, the main hose (2) is an integrally formed flexible hose with a multi-channel structure and a large aspect ratio.

6. According to the variable diameter soft hysteroscope based on self-growth method as described in claim 1, a first channel is arranged at the center of the main hose (2), a plurality of second channels are evenly distributed around the circumference of the first channel on the main hose (2), each flexible wire (21) of the main hose (2) is buried in a second channel, a tip carrying device (3) is fixedly connected to the left end of the main hose (2), and when the hysteroscope main body film (1) is filled with gas, it forms an air bag shape and wraps around the main hose (2) and the tip carrying device (3), and a plurality of holes are opened on the tip carrying device (3), and different holes are used for over-tight fitting of the camera, water inlet pipe, water outlet pipe, LED light source or / and medical device pipe, so that the medical device can be extended out of the operator through the first channel.

7. According to the variable diameter soft hysteroscope based on self-growth mode as described in claim 1, the driving device (4) includes a clamping ring (41) and a linear module (42) fixedly connected to the clamping ring (41), the clamping ring (41) connects the hysteroscope main body film (1) and the linear module (42) together, so that the shell of the linear module (42) and the hysteroscope main body film (1) are connected and parallel to form a cavity, and the cavity includes a steering drive device (43) driven by the linear module (42) to realize left and right movement, and an air pump (44) fixedly connected to the right part of the linear module (42).

8. According to the variable diameter soft hysteroscope based on self-growth mode as described in claim 7, the steering drive device (43) includes a fixed frame (45) which is transmission-connected to the linear module (42), and motors fixed to the fixed frame (45) which are the same in number as the flexible wires (21), and the motors are used to adjust the winding and releasing of the flexible wires (21), and the right part of the main hose (2) is fixed to the fixed frame (45).

9. According to the variable diameter soft hysteroscope based on self-growth mode as described in claim 8, the motor shaft of the motor extends out of the fixing frame (45) from top to bottom, and each motor shaft is fixedly connected to a motor shaft cap (47), each flexible wire (21) extends out of the right part of the main hose (2) and is fixedly connected to a motor shaft cap (47), the main hose (2) passes through the fixing frame (45), and a clamping mechanism (46) is fixedly connected to the fixing frame (45), and the main hose (2) is fixedly connected to the clamping mechanism (46).

10. According to the variable diameter soft hysteroscope based on self-growth mode as described in claim 8, each motor is matched with a sensor.

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