Hysteroscope with side backflow structure

Abstract

The utility model discloses a hysteroscope with a side backflow structure, which comprises a hysteroscope body and an insertion tube led out from the hysteroscope body, and a water tube is arranged in the insertion tube and the hysteroscope body in a penetrating manner; the insertion pipe comprises an insertion pipe body and an end cover, a side backflow structure is further arranged between the insertion pipe body and the end cover, and an opening in one end of the water pipe is formed in the side backflow structure. The hysteroscope with the side face backflow structure is simple in structure, liquid can enter and exit the water pipe from the end cover and can also enter and exit the water pipe from the side face backflow structure through the arrangement of the side face backflow structure, the flowing rate of the liquid is greatly increased, and the hysteroscope operation or examination efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a hysteroscope with a side reflux structure. Background Art

[0002] A hysteroscope is an endoscope with a fiber light source. The top of the hysteroscope is usually inserted into the vagina, through the cervix into the uterus, and the pathological and physiological changes of the cervical canal, the internal cervical os, the uterine cavity and the fallopian tube opening are observed through the light source and camera installed on the hysteroscope, so as to directly observe and collect samples of the diseased tissue and send them for pathological examination. At the same time, surgical treatment can also be performed under the hysteroscope. In order to clearly observe the pathological changes inside the uterus, when using a hysteroscope, it is usually necessary to inject distending fluid (normal saline, 5% glucose, etc.) into the patient's pelvic cavity through an insertion tube to expand the pelvic cavity and provide a clear field of vision. In order to improve the comfort of the patient, the insertion tube of the existing hysteroscope generally has a very small diameter. The distending fluid is only delivered through the opening at the front end of the insertion tube, with a low flow rate and low efficiency, which is not conducive to the inspection or operation.

[0003] For example, Chinese patent CN216454929 discloses a hysteroscope, which includes a gripping handle, a camera device and an insertion tube connected to the gripping handle, wherein the camera device is arranged at the end of the insertion tube away from the gripping handle, and the gripping handle is also provided with a rotating assembly connected to the insertion tube to drive the insertion tube to rotate in the uterine cavity through the rotating assembly; for another example, Chinese patent CN219331613U discloses a leak-proof hysteroscope, which includes a hysteroscope system and a leak-proof blocking block system, wherein the hysteroscope system includes an irrigation liquid tube seat and a mirror tube end fixedly connected to one end of the irrigation liquid tube seat, the other end of the irrigation liquid tube seat is connected to an interface end, the leak-proof blocking block system is movably mounted on the mirror tube end, a conical blocking sleeve made of silicone material is mounted on the hysteroscope sheath, a connecting sleeve is provided at one end of the blocking sleeve, and a push arm end is connected to the connecting sleeve.

[0004] When implementing the above two patents, the inventors found that since the water outlet of the hysteroscope is only set at the front end of the insertion tube, when a lens module with a larger diameter is used, the space of the water outlet will be squeezed, thereby reducing the circulation rate of the uterine distension fluid and affecting the normal progress of the operation. Utility Model Content

[0005] Based on this, it is necessary to provide a hysteroscope with a side reflux structure to address the above-mentioned technical problems. By setting the side reflux structure, the flow rate of the uterine distension fluid can be accelerated without increasing the diameter of the insertion tube, thereby improving the operating efficiency during surgery or examination.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A hysteroscope with a side reflux structure comprises: a hysteroscope body and an insertion tube led out from the hysteroscope body, wherein a water pipe is provided inside the insertion tube and the hysteroscope body; the insertion tube comprises an insertion tube body and an end cover, a side reflux structure is further provided between the insertion tube body and the end cover, and one end opening of the water pipe is placed in the side reflux structure.

[0008] Furthermore, the side return structure is a water return member, and a water return pipe channel and a working channel are arranged in the water return member. The water pipe enters the water return pipe channel after passing through the insertion tube body.

[0009] Furthermore, a first water return port is provided on the common side wall of the water return member and the water return pipe channel, and an edge of the first water return port away from the end cover is flush with an opening edge of the water pipe in the water return member.

[0010] Furthermore, the insertion tube further comprises a module sleeve, which is arranged between the insertion tube body and the end cover and sleeved on the outside of the water return member.

[0011] Furthermore, a second water return port is provided on the tube wall of the module sleeve, and the second water return port is arranged corresponding to the first water return port.

[0012] Furthermore, the opening of the second water return port is larger than or equal to the opening of the first water return port.

[0013] Furthermore, a working channel opening, a first waterway inlet and outlet, and a second waterway inlet and outlet are provided in the end cover, and the working channel opening is provided corresponding to the working channel.

[0014] Furthermore, the side return structure is a module sleeve, and a return pipe channel is provided in the module sleeve.

[0015] Furthermore, a second water return port is provided on the common pipe wall of the module sleeve and the water return pipe channel.

[0016] Furthermore, the opening edge of the water pipe in the module sleeve is flush with the edge of the second water return port away from the end cover.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The hysteroscope with a side reflux structure provided by the utility model has a side reflux structure arranged between an insertion tube body and an end cover of the insertion tube, and one end opening of the water pipe is arranged inside the side reflux structure. Liquid can enter and exit from the side reflux structure or from the end cover, and the liquid flow rate is greatly improved. There is no need to increase the diameter of the insertion tube, and there is no need to occupy the space inside the insertion tube for squeezing the camera data cable. While ensuring the comfort of the patient and the clarity of the shot, the flow rate of the uterine distension fluid can be greatly accelerated. Whether adding or discharging the uterine distension fluid, time can be saved, thereby improving the efficiency of hysteroscopic surgery or examination, and saving time for medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of a hysteroscope with a side reflux structure is provided for the utility model;

[0020] Figure 2 This is a schematic diagram of the first angle structure of the insertion tube of Example 1;

[0021] Figure 3 It is a schematic diagram of the structure of the insertion tube of Example 1 from a second angle;

[0022] Figure 4 This is a schematic diagram of the structure after the water return component and the water pipe are assembled in Example 1;

[0023] Figure 5 It is a schematic diagram of the structure of the water return member in Example 1;

[0024] Figure 6 This is a schematic diagram of the structure of the insertion tube after assembly in Example 1;

[0025] Figure 7 This is a schematic diagram of the module sleeve structure in Example 2.

[0026] The markings in the figure are as follows:

[0027] Hysteroscope body 1, water valve 11, water channel 12;

[0028] Insert pipe 2, end cover 21, limiting protrusion 211, working channel opening 212, first waterway inlet and outlet 213, second waterway inlet and outlet 214, first positioning notch 215; return water part 22, first return water opening 221, return water pipe channel 222, working channel 223, second positioning notch 224; module sleeve 23, second return water opening 231, limiting groove 232;

[0029] Insertion tube body 24;

[0030] Water pipe 3. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] 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 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] As described in the background art, the liquid flow rate of the existing hysteroscope insertion tube is too slow, which is not conducive to the hysteroscopic surgery and inspection operations.

[0035] In order to solve this technical problem, the utility model provides a hysteroscope with a side reflux structure, and the side reflux structure is arranged on the insertion tube of the hysteroscope.

[0036] Specifically, please refer to Figure 1-7 A hysteroscope with a side reflux structure comprises: a hysteroscope body 1 and an insertion tube 2 led out from the hysteroscope body 1, a water pipe 3 is arranged running through the insertion tube 2 and the hysteroscope body 1; the insertion tube 2 comprises an insertion tube body 24 and an end cover 21, a side reflux structure is also arranged between the insertion tube body 24 and the end cover 21, and one end opening of the water pipe 3 is placed in the side reflux structure.

[0037] The hysteroscope with a side reflux structure provided by the utility model has a side reflux structure arranged on the insertion tube 2, so that liquid can enter and exit from the side reflux structure or from the end cover, thereby increasing the diffusion area of ​​the liquid and improving the flow rate of the liquid. The utility model has a simple structure and can improve the liquid delivery efficiency of the hysteroscope without changing the size of the insertion tube of the original hysteroscope.

[0038] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] Example 1

[0042] Please refer to Figure 1-6 The present embodiment provides a hysteroscope with a side reflux structure, the hysteroscope comprising a hysteroscope body 1 and an insertion tube 2 led out from the hysteroscope body 1, wherein the insertion tube 2 is provided with a camera assembly, and when working, the insertion tube 2 is inserted into the patient's uterine cavity to collect image information; the hysteroscope body 1 is provided with a water valve 11 and a water channel 12 corresponding to the water valve 11, and the water valve 11 is connected to an external water inlet pipe or a drainage pipe, and then provides uterine distension fluid or drainage operation for the human uterine cavity through a water inlet pump or a drainage pump, specifically, By controlling the water valve 11 and the water inlet pump, the distending fluid is pumped from the outside into the water channel 12 of the hysteroscope body 1, and then enters the patient's uterine cavity through the insertion tube 2 to expand the pelvic cavity for medical personnel to collect clear uterine cavity images; by controlling the water valve 11 and the drainage pump, the excess distending fluid in the body is returned from the inner body into the insertion tube 2 and then discharged from the patient's body through the hysteroscope body 1. The water inlet and drainage operations are arranged according to the needs of medical personnel. The water valve 11 can be set to one or more and one or more water channels 12 can be set accordingly.

[0043] Furthermore, a water pipe 3 is provided between the insertion tube 2 and the hysteroscope body 1, and the external uterine distension fluid is transported into the uterine cavity or the excess uterine distension fluid is discharged from the body through the water pipe 3.

[0044] Specifically, the insertion tube 2 includes an insertion tube body 24 and an end cover 21. A water pipe 3 is arranged inside the insertion tube body 24. One end of the water pipe 3 is led out from the water valve 11 of the hysteroscope body 1 and extends along the water channel 12 to the insertion tube body 24 until it reaches the rear end of the end cover 21. When uterine distension fluid is added, the uterine distension fluid enters the water pipe 3 from the external water inlet pipe through the water channel 12 of the hysteroscope body 11, and then flows out from the end cover 21 into the patient's body. Conversely, when the excess uterine distension fluid in the patient's body is discharged, the liquid enters the water pipe 3 from the uterine cavity through the end cover 21, and then enters the external drainage pipe through the water channel 12 of the hysteroscope body 11 and is discharged from the human body.

[0045] Furthermore, a side reflux structure is provided between the insertion tube body 24 and the end cover 21 , and the side reflux structure is connected to the water pipe 3 , so that liquid can enter or flow out of the water pipe 3 from the side reflux structure.

[0046] like Figure 4 and 5 As shown, further, the side return structure is a water return member 22, the water return member 22 is in the shape of a hollow cylinder, and a water return pipe channel 222 and a working channel 223 are provided in the water return member 22, and the water pipe 3 passes through the insertion tube body 24 and enters the water return member 22. Specifically, the water pipe 3 passes through the insertion tube body 24 and then is inserted into the water return pipe channel 222, and the working channel 223 can accommodate data cables and surgical instruments to pass through.

[0047] Furthermore, a first water return port 221 is provided on the common tube wall of the water return member 22 and the water return pipe channel 222, and the lower edge of the first water return port 221 away from the end cover 21 is flush with the opening edge of the water pipe 3 in the water return member 22. During operation, a part of the liquid in the water pipe 3 flows out from the first water return port 221, and the other part flows out from the end cover 21 through the water return pipe channel 222; on the other hand, during drainage operation, a part of the liquid in the uterine cavity flows into the water return pipe channel 222 through the end cover 21 and then enters the water pipe 3, and the other part directly enters the water pipe 3 from the first water return port 221. Through this ingenious structural design, the rate of liquid outflow and reflux in the water pipe 3 is greatly increased without increasing the diameter of the insertion tube 2, thereby saving time for hysteroscopic surgery or detection operations. During installation, insert the opening of the water pipe 3 into the return pipe channel 222 so that the opening of the water pipe 3 is flush with the lower edge of the first return water port 221 away from the end cover 21. At this time, part of the liquid in the water pipe 3 flows out from the first return water port 221, and the other part flows along the return water pipe channel 222 to the end cover 21.

[0048] Furthermore, the shape of the first water return port 221 is not limited, and may be circular, elliptical, or quadrilateral.

[0049] Furthermore, the water pipe 3 may be one or more according to the water valve 11 of the hysteroscope body 1 . In the present embodiment, only one water pipe 3 is provided.

[0050] like Figure 2 and 3 As shown, further, the insertion tube 2 also includes a module sleeve 23, and the module sleeve 23 is arranged between the insertion tube body 24 and the end cover 21 and is sleeved on the outside of the return water member 22 to form a more stable pipeline structure. Specifically, the module sleeve 23 is in the shape of a hollow cylinder, and a second water return port 231 is provided on its tube wall. The shape of the second water return port 231 is not limited. The second water return port 231 is provided corresponding to the first water return port 221, and the opening of the second water return port 231 is equal to or larger than the first water return port 221. In this embodiment, the opening of the second water return port 231 is preferably larger than the first water return port 221, which is conducive to the liquid entering and flowing out of the first water return port 221. During installation, the module sleeve 23 is sleeved on the water return member 22 so that the module sleeve 23 and the edge of the water return member 22 close to the end cover 21 are aligned, and the water return member 22 is rotated to make the second water return port 231 correspond to the first water return port 221, and the water in the water pipe 3 can enter and exit from the second water return port 231.

[0051] Furthermore, a working channel opening 212, a first waterway inlet and outlet 213 and a second waterway inlet and outlet 214 are provided in the end cover 21. The working channel opening 212 is arranged corresponding to the working channel 223. During operation, medical instruments can enter the uterine cavity from the working channel opening 212 via the working channel 223 to perform surgical operations; a part of the liquid in the water pipe 3 flows to the end cover 21 through the return pipe channel 222 and can flow out from any one of the working channel opening 212, the first waterway inlet and outlet 213 and the second waterway inlet and outlet 214; during water return, the liquid can also flow into the water pipe 3 from any one of the working channel opening 212, the first waterway inlet and outlet 213 and the second waterway inlet and outlet 214, thereby cooperating with the return water component 22 to maximize the liquid flow rate and improve the working efficiency of hysteroscopic examination or surgery.

[0052] Furthermore, the outer wall of the end cover 21 is also provided with a first positioning notch 215, and the side wall of the return water member 22 is provided with a second positioning notch 224. The first positioning notch 215 and the second positioning notch 224 are adapted in shape. During installation, the first positioning notch 215 and the second positioning notch 224 are correspondingly engaged with each other for quick assembly.

[0053] Furthermore, the outer wall of the end cover 21 is also provided with a limiting protrusion 211, and the module sleeve 23 is correspondingly provided with a limiting groove 232. During installation, the limiting protrusion 211 and the limiting groove 232 are adapted in shape and size. During installation, the limiting groove 232 is engaged with the positioning limiting protrusion 211 to speed up the assembly speed.

[0054] like Figure 6 As shown, the hysteroscope with a side reflux structure proposed in this embodiment is installed in the following way: after the water pipe 3 passes through the insertion tube body 24, it first passes through the module sleeve 23 and is inserted into the return pipe channel 222 of the return water part 22. The opening edge of the water pipe 3 is flush with the edge of the first return water port 221 away from the end cover 21. The end cover 21 is rotated to make the first positioning notch 215 and the second positioning notch 224 face each other. The module sleeve 23 is sleeved on the return water part 22, the first return water port 221 and the second return water port 231 are relative to each other, and the limiting groove 232 is buckled on the limiting protrusion 211 to complete the installation of the insertion tube 2.

[0055] Example 2

[0056] like Figure 7 As shown, this embodiment is a further improvement of embodiment 1, and the return water part 22 is not set. The side return flow structure of the hysteroscope is a module sleeve 23. Specifically, a return water pipe channel 222 and a working channel 223 are set in the module sleeve 23. A second return water port 231 is provided on the common pipe wall of the module sleeve 23 and the return water pipe channel 222. When the water pipe 3 is inserted into the return water pipe channel 222 of the module sleeve 23, the opening edge of the water pipe 3 is flush with the edge of the second return water port 231 away from the end cover 21. The shape of the second return water port 231 is not limited. This embodiment uses an elliptical opening. The end cover 21 and the module sleeve 23 can be connected by conventional means such as threaded connection. During operation, after the liquid flows out of the water pipe 3, a part of it flows out directly from the second return water port 231, and the other part flows out after passing through the end cover 21. On the contrary, during reflux, a part of the liquid enters the water pipe 3 from the second return water port 231, and the other part enters the water pipe 3 after passing through the end cover 21 and is discharged from the body.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A hysteroscope with a side reflux structure, characterized in that: It comprises: a hysteroscope body (1) and an insertion tube (2) extending from the hysteroscope body (1), wherein a water pipe (3) is provided inside the insertion tube (2) and the hysteroscope body (1); the insertion tube (2) comprises an insertion tube body (24) and an end cover (21), a side reflux structure is further provided between the insertion tube body (24) and the end cover (21), and one end opening of the water pipe (3) is placed in the side reflux structure.

2. The hysteroscope with a side reflux structure according to claim 1, characterized in that: The side return structure is a water return member (22), wherein a water return pipe channel (222) and a working channel (223) are provided in the water return member (22), and the water pipe (3) passes through the insertion pipe body (24) and enters the water return pipe channel (222).

3. The hysteroscope with a side reflux structure according to claim 2, characterized in that: A first water return port (221) is provided on a common side wall of the water return member (22) and the water return pipe channel (222); an edge of the first water return port (221) away from the end cover (21) is flush with an opening edge of the water pipe (3) in the water return member (22).

4. The hysteroscope with a side reflux structure according to claim 3, characterized in that: The insertion tube (2) further comprises a module sleeve (23), wherein the module sleeve (23) is arranged between the insertion tube body (24) and the end cover (21) and sleeved on the outside of the water return member (22).

5. The hysteroscope with a side reflux structure according to claim 4, characterized in that: A second water return port (231) is provided on the tube wall of the module sleeve (23), and the second water return port (231) is arranged corresponding to the first water return port (221).

6. The hysteroscope with a side reflux structure according to claim 5, characterized in that: The opening of the second water return port (231) is larger than or equal to the opening of the first water return port (221).

7. The hysteroscope with a side reflux structure according to claim 2, characterized in that: The end cover (21) is provided with a working channel opening (212), a first waterway inlet and outlet (213), and a second waterway inlet and outlet (214), and the working channel opening (212) is arranged corresponding to the working channel (223).

8. The hysteroscope with a side reflux structure according to claim 1, characterized in that: The side return flow structure is a module sleeve (23), and a return water pipe channel (222) is provided in the module sleeve (23).

9. The hysteroscope with a side reflux structure according to claim 8, characterized in that: A second water return port (231) is provided on the common pipe wall of the module sleeve (23) and the water return pipe channel (222).

10. The hysteroscope with a side reflux structure according to claim 9, characterized in that: The opening edge of the water pipe (3) in the module sleeve (23) is flush with the edge of the second water return port (231) away from the end cover (21).

Images