Hysteroscope with plugging function

Abstract

The utility model discloses a hysteroscope with a plugging function. The hysteroscope comprises a handle for a user to hold and operate, a long-strip-shaped insertion part and an expandable balloon. And the near end of the insertion part is assembled on the handle. The balloon is connected to the insertion part in a sleeving mode, the balloon is further located between the near end and the far end of the insertion part, and an outer connector communicated with the interior of the balloon is formed in the balloon. According to the hysteroscope, by means of dilation of the balloon, the situation that the uterus distending liquid flows out in the examination process, the uterus distending effect is poor due to pressure leakage caused by outflow, and then the image observation effect of a doctor is affected is avoided.

Description

Technical Field

[0001] The utility model relates to a medical device, in particular to a hysteroscope with a plugging function. Background Art

[0002] As we all know, the hysteroscope is a minimally invasive gynecological diagnostic and treatment instrument used to diagnose, treat, and follow up intrauterine lesions. It not only determines the location, size, appearance, and extent of lesions, but also allows for detailed observation of the tissue structure on the surface of the lesions and direct visualization for sampling or positioning for curettage. This significantly improves the accuracy of diagnosing intrauterine diseases, updating, developing, and addressing the shortcomings of traditional diagnostic and treatment methods. For most patients suitable for diagnostic curettage, it is more reasonable and effective to first perform a hysteroscopy to determine the location of the lesion and then proceed with a biopsy or curettage.

[0003] Among them, for the disposable outer sheath hysteroscope disclosed in Chinese patent application No. 202310760459.0, since it does not have the function of blocking the cervical opening, during the examination, the uterine distension fluid will flow out from the cervical opening. The outflowing fluid will cause pressure leakage and the uterine distension effect will be poor, which will affect the doctor's observation of the image effect.

[0004] Therefore, there is an urgent need for a hysteroscope with a blocking function to overcome one or more of the above-mentioned defects. Utility Model Content

[0005] The utility model aims to provide a hysteroscope with a plugging function, so as to prevent uterine distension fluid from flowing out from the cervical opening during the examination process.

[0006] To achieve the above objectives, the present invention provides a hysteroscope with a plugging function, comprising a handle for user manipulation, an elongated insertion portion, and an expandable balloon. The proximal end of the insertion portion is mounted on the handle. The balloon is attached to the insertion portion in an outer sleeve, positioned between the proximal and distal ends of the insertion portion, and has an external port that communicates with the interior of the balloon.

[0007] Compared to existing technologies, during the examination, the balloon on the insertion portion expands to block (occlude) the cervical os, preventing the distending fluid from escaping from the cervical os during the examination. This would cause pressure leakage and poor distending effect, which would affect the doctor's ability to observe images. Furthermore, because the balloon is positioned over the insertion portion and between its proximal and distal ends, allowing the insertion portion to pass through the balloon, the balloon circumferentially blocks the cervical os, resulting in a better sealing effect.

[0008] Preferably, two opposite ends of the balloon are fixedly connected to the insertion portion in a sealed manner.

[0009] Preferably, the hysteroscope with a plugging function of the present invention further includes an opening and closing control valve provided at the balloon and used for opening and closing the external port.

[0010] Preferably, the balloon includes an expandable balloon body and a sleeve ring body connected to the balloon body, the sleeve ring body is fixedly sheathed on the insertion part, the sleeve ring body is also sealed with the insertion part, and the opening and closing control valve and the external interface are both located on the sleeve ring body.

[0011] Preferably, the outer contour of the cross section of the balloon body is a circle or a regular polygon.

[0012] Preferably, the inner contour of the cross section of the balloon body is a circle or a regular polygon.

[0013] Preferably, the balloon body includes a first balloon segment, a second balloon segment and a third balloon in sequence from the distal end to the proximal end of the insertion part, the outer diameter of the second balloon segment is larger than the outer diameters of both the first balloon segment and the third balloon segment, the first balloon segment is sealed and fixedly connected to the insertion part, and the third balloon segment is fixedly and sealedly sheathed on the sleeve ring body.

[0014] Preferably, the balloon body further includes a first inclined transition section connected between the first balloon segment and the second balloon segment, and a second inclined transition section connected between the second balloon segment and the third balloon segment.

[0015] Preferably, the length of the first inclined transition section is greater than the length of the second inclined transition section.

[0016] Preferably, the sleeve ring body is provided with a receiving cavity which is linearly connected to and communicates with the external interface in the axial direction, the cavity diameter of the receiving cavity is larger than the external interface, and the opening and closing control valve is assembled in the receiving cavity.

[0017] Preferably, the switch control valve is a one-way valve, which includes a valve head, a spring and a hollow plug ring, wherein the spring elastically abuts between the valve head and the plug ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of the hysteroscope with a plugging function according to the present invention.

[0019] Figure 2 yes Figure 1 A stereoscopic view of the hysteroscope is shown at another angle.

[0020] Figure 3 yes Figure 1 A stereoscopic view of the balloon in the hysteroscope is shown.

[0021] Figure 4yes Figure 3 The balloon is shown in a plan view as viewed in the direction indicated by the adjacent arrow.

[0022] Figure 5 It is along Figure 4 The internal view cut along line AA, which also shows the outer contour of the insertion part with a dotted line.

[0023] Figure 6 yes Figure 5 An internal view hiding the outer contour of the insert and showing the outer diameters D1-D3 and segment lengths L1-L2.

[0024] Figure 7 It is along Figure 5 Internal view cut along the midline BB. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present application in conjunction with specific implementation examples and the accompanying drawings, and the technical solutions of the utility model are explained. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. Many specific details are explained in the following description to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed below. The embodiments of the utility model are now described with reference to the accompanying drawings, and similar element numbers in the accompanying drawings represent similar elements.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0027] See also Figure 1 and Figure 2The hysteroscope 100 of the present invention comprises a handle 10 for the user to grasp and operate, an elongated insertion portion 20, an on / off control valve 30, and an expandable balloon 40. The proximal end 21 of the insertion portion 20 is mounted on the handle 10, which provides a stable position for the insertion portion 20. The specific structures of both the insertion portion 20 and the handle 10 are well known in the art and will not be described in detail here.

[0028] At the same time, the balloon 40 is connected to the insertion part 20 in a sheath manner, that is, the balloon 40 is sheathed on the insertion part 20 and connected to the insertion part 20 to meet the need of the insertion part 20 to provide support for the balloon 40; Figure 1 、 Figure 2 and Figure 5 In the figure, the two opposite ends of the balloon 40 are fixedly connected to the insertion part 20 in a sealed manner, so that the two opposite ends of the balloon 40 are fixedly constrained by the insertion part 20 and ensure the seal between the two opposite ends of the balloon 40 and the insertion part 20, thereby meeting the need for the balloon 40 to expand when the position between the two ends is located during the process of injecting gas or liquid into the interior 41 of the balloon 40.

[0029] Furthermore, the balloon 40 is also located between the proximal end 21 and the distal end 22 of the insertion portion 20. The balloon 40 is provided with an external port 42 that communicates with the interior 41 of the balloon 40. The switch control valve 30 is provided at the balloon 40 and is used to open and close the external port 42 to prevent the backflow of gas or liquid injected from the outside into the interior 41 of the balloon 40 through the external port 42. It should be noted that, according to actual needs, the switch control valve 30 can also be deleted. In this case, a control switch provided on the pipeline that provides gas or liquid to the external port 42 can be used to prevent the backflow of gas or liquid in the interior 41 of the balloon 40. More specifically, as follows:

[0030] like Figures 1 to 3 ,as well as Figures 5 and 6 As shown, as an example, the balloon 40 includes an expandable balloon body 40a and a sleeve ring body 40b connected to the balloon body 40a. The sleeve ring body 40b is fixedly sheathed on the insertion part 20, and the sleeve ring body 40b is also sealed with the insertion part 20 to prevent the gas or liquid injected into the interior 41 of the balloon 40 from leaking from between the insertion part 20 and the sleeve ring body 40b; correspondingly, the switch control valve 30 and the external interface 42 are both located on the sleeve ring body 40b. Therefore, by designing that "the balloon 40 includes a balloon body 40a and a sleeve ring body 40b connected to the balloon body 40a", the installation operation of the switch control valve 30 at the balloon 40 is facilitated. Specifically, Figures 1 to 3 and Figures 5 and 6As an example, the balloon body 40a includes a first balloon segment 40a1, a second balloon segment 40a2 and a third balloon 40a3 in the direction from the distal end 22 to the proximal end 21 of the insertion portion 20; the outer diameter D2 of the second balloon segment 40a2 is larger than the outer diameter D1 of the first balloon segment 40a1 and the outer diameter D3 of the third balloon segment 403, as shown in FIG. Figure 6 As shown in FIG. 1 , the first balloon segment 40a1 is fixedly connected to the inserting portion 20 in a sealed manner, and the third balloon segment 40a3 is fixedly and sealedly sheathed on the sleeve ring body 40b. Therefore, by designing that the balloon body 40a includes the first balloon segment 40a1, the second balloon segment 40a2, and the third balloon 40a3, the reliability of the occlusion of the balloon body 40a is improved. More specifically, Figures 1 to 3 and Figures 5 and 6 As an example, the balloon body 40a further includes a first inclined transition section 40a4 connected between the first balloon section 40a1 and the second balloon section 40a2, and a second inclined transition section 40a5 connected between the second balloon section 40a2 and the third balloon section 40a3. With the help of the first inclined transition section 40a4, the balloon body 40a can be more reliably fitted with the cervical os, thereby effectively improving the reliability of the balloon body 40a in blocking the cervical os. In addition, with the help of the first inclined transition section 40a4 and the second inclined transition section 40a5, the balloon body 40a can be more smoothly and flexibly expanded during the injection of gas or liquid. For example, in Figure 7 As an example, the outer contour 43 of the cross section of the balloon body 40a is circular, and the inner contour 44 of the cross section of the balloon body 40a is circular. This design makes the center lines of the first balloon segment 40a1, the second balloon segment 40a2, the third balloon segment 40a3, the first inclined transition segment 40a4 and the second inclined transition segment 40a5 coincide and each is a circular ring, so as to facilitate the manufacturing and processing of the balloon body 40a; obviously, according to actual needs, the outer contour 43 and the inner contour 44 of the cross section of the balloon body 40a can also be regular polygons, so it is not necessary to use Figure 7 The following are the limits; Figure 6 As an example, the length L1 of the first inclined transition section 40a4 is greater than the length L2 of the second inclined transition section 40a5, so that the slope of the first inclined transition section 40a4 is smaller than the slope of the second inclined transition section 40a5, thereby making the first inclined transition section 40a4 have a smoother inclined transition.

[0031] like Figure 5 As shown, as an example, the sleeve ring body 40b is provided with a receiving cavity 45 that is connected to and connected to the external interface 42 in a straight line in the axial direction. The cavity diameter P of the receiving cavity 45 is larger than the size of the external interface 42. The switch control valve 30 is assembled in the receiving cavity 45. Specifically, Figure 5In the example, the switch control valve 30 is a one-way valve to simplify its structure. The one-way valve includes a valve head 31, a spring 32, and a hollow plug ring 33. The spring 32 elastically abuts between the valve head 31 and the plug ring 33. This design facilitates installation of the switch control valve 30 on the sleeve ring body 40b while still meeting the requirements for opening and closing the external interface 42 of the switch control valve 30.

[0032] Compared to existing technologies, during the examination, the balloon 40 on the insertion portion 20 expands to block (occlude) the cervical os, preventing the distending fluid from escaping from the cervical os during the examination. This would cause pressure leakage and poor distending effect, which would affect the doctor's ability to observe images. Furthermore, because the balloon 40 is positioned over the insertion portion 20 and between the proximal end 21 and distal end 22 of the insertion portion 20, allowing the insertion portion 20 to pass through the balloon 40, the balloon 40 circumferentially blocks the cervical os, resulting in a more effective blocking effect.

[0033] It is understood that, since the first balloon segment 40a1 and the overlay ring body 40b are both sealed and fixedly connected to the insertion portion 20, the first balloon segment 40a1 and the overlay ring body 40b are opposite ends of the balloon 40. Furthermore, the aforementioned fixed connection method can be adhesive bonding or other methods well known in the art. Furthermore, since the overlay ring body 40b and the third balloon segment 40a3 form a sealed and fixed outer shell, the shape of the overlay ring body 40b matches the shape of the third balloon segment 40a3. For example, when the third balloon segment 40a3 is annular, the cross-section of the overlay ring body 40b is annular; when the third balloon segment 40a3 is a regular polygonal ring, the cross-section of the overlay ring body 40b is a regular polygonal ring.

[0034] It is worth noting that although Figure 5 The interior 41 of the balloon 40 is enclosed by the insert 20 to form a sealed space, but not Figure 5 The state shown in the drawings may be the initial state or the expanded state of the balloon 40. In addition, the one-way valve is only one embodiment of the switch control valve 30. Obviously, according to actual needs, the switch control valve 30 can also be an electrically controlled valve, etc., so it is not limited to this.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. At the same time, what is disclosed above is only the preferred embodiment of the present invention, and of course it cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A hysteroscope with a plugging function, comprising a handle for a user to hold and operate and an elongated insertion portion, wherein the proximal end of the insertion portion is assembled on the handle, characterized in that: The hysteroscope also includes an expandable balloon, which is connected to the insertion part in an outer shape and is located between the proximal end and the distal end of the insertion part. The balloon is provided with an external interface that communicates with the interior of the balloon.

2. The hysteroscope with plugging function according to claim 1, characterized in that: The two opposite ends of the balloon are fixedly connected to the insertion portion in a sealed manner.

3. The hysteroscope with plugging function according to claim 2, characterized in that: It also includes a switch control valve arranged at the balloon and used for opening and closing the external port.

4. The hysteroscope with plugging function according to claim 3, characterized in that: The balloon includes an expandable balloon body and a sleeve ring body connected to the balloon body. The sleeve ring body is fixedly sheathed on the insertion part and is also sealed with the insertion part. The switch control valve and the external interface are both located on the sleeve ring body.

5. The hysteroscope with plugging function according to claim 4, characterized in that: The outer contour of the cross section of the balloon body is a circle or a regular polygon; the inner contour of the cross section of the balloon body is a circle or a regular polygon.

6. The hysteroscope with plugging function according to claim 4, characterized in that: The balloon body includes a first balloon segment, a second balloon segment and a third balloon in sequence from the distal end to the proximal end of the insertion part. The outer diameter of the second balloon segment is larger than the outer diameters of the first balloon segment and the third balloon segment. The first balloon segment is sealed and fixedly connected to the insertion part, and the third balloon segment is fixedly and sealedly sheathed on the sleeve ring body.

7. The hysteroscope with plugging function according to claim 6, characterized in that: The balloon body further includes a first inclined transition section connected between the first balloon section and the second balloon section and a second inclined transition section connected between the second balloon section and the third balloon section.

8. The hysteroscope with plugging function according to claim 7, characterized in that: The length of the first inclined transition section is greater than the length of the second inclined transition section.

9. The hysteroscope with plugging function according to claim 4, characterized in that: The sleeve ring body is provided with a receiving cavity which is linearly connected to and communicated with the external interface in the axial direction. The diameter of the receiving cavity is larger than the external interface. The switch control valve is assembled in the receiving cavity.

10. The hysteroscope with plugging function according to claim 9, characterized in that: The switch control valve is a one-way valve, which includes a valve head, a spring and a hollow plug ring. The spring elastically abuts between the valve head and the plug ring.

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