Hysteroscope and self-deformation insertion part thereof

Abstract

The utility model discloses a self-deformation insertion part of a hysteroscope. The self-deformation insertion part is provided with a long-strip-shaped main body part and a self-deformation memory metal head part which is connected to the front portion of the main body part in the insertion direction of the self-deformation insertion part. The memory metal head part can be unilaterally bent to a deformation position relative to the main body part when the temperature of the memory metal head part reaches a preset value, and can be restored to an initial position relative to the main body part when the temperature of the memory metal head part is lower than the preset value. The self-deformation insertion part has the advantages that the self-deformation insertion part can be conveniently inserted into the uterine cavity and is closer to the uterine cavity after being inserted into the uterine cavity, so that examination and treatment operations of doctors are facilitated. In addition, the utility model also discloses a hysteroscope comprising a handle and the self-deformation insertion part.

Description

Technical Field

[0001] This utility model relates to a medical device, and more particularly to a hysteroscope and its self-deforming insertion part. Background Technology

[0002] Currently, the insertion part of existing hysteroscopes mainly falls into two categories.

[0003] First, the head end of the insertion part is equipped with a snake bone structure. The head end of the insertion part is bent and deformed by the traction rope of the snake bone structure, thereby meeting the need for the head end of the insertion part to be closer to the uterine cavity and for the camera module inside the head end to have a larger camera angle. Although the insertion part has the advantage of convenient insertion into the uterine cavity, the introduction of the snake bone structure and traction rope makes the structure of the insertion part complex and costly.

[0004] The second type does not have a snake-bone structure or a traction rope for pulling the snake-bone structure at the tip of the insertion part. In order for the tip of the insertion part to be closer to the uterine cavity and for the camera module inside the tip to have a wider camera angle, the tip of the straight insertion part needs to be bent at a certain angle relative to the rest of the insertion part before insertion into the uterine cavity. This will make the insertion of the insertion part into the uterine cavity difficult.

[0005] Therefore, there is an urgent need for a hysteroscope and its self-deforming insertion part to overcome the above-mentioned defects. Utility Model Content

[0006] One objective of this invention is to provide a self-deforming insertion part for a hysteroscope, which has the advantages of convenient insertion into the uterine cavity and closer proximity to the uterine cavity after insertion, while having a simple structure.

[0007] Another objective of this invention is to provide a hysteroscope that, with its simple structure, offers the advantages of convenient insertion into the uterine cavity and closer proximity to the cavity after insertion.

[0008] To achieve the above objectives, the self-deformable insertion part of this utility model has an elongated main body and a self-deformable shape memory metal head connected to the front of the main body along the insertion direction of the self-deformable insertion part. When the temperature it receives reaches a preset value, the shape memory metal head can bend to a deformed position relative to one side of the main body, and when the temperature it receives is lower than the preset value, the shape memory metal head can return to its initial position relative to the main body.

[0009] Compared with the prior art, the design of "a shape memory metal head connected to the front of the main body along the insertion direction of the self-deformable insert and capable of bending to a deformed position relative to one side of the main body when the temperature it receives reaches a preset value, and capable of returning to its initial position relative to the main body when the temperature it receives is lower" allows the shape memory metal head to bend and deform relative to one side of the main body only after being inserted into the uterine cavity and heated to a preset value by the uterine cavity. This facilitates the insertion of the self-deformable insert into the uterine cavity and allows the bent shape memory metal head to be closer to the uterine cavity, thus facilitating examination and treatment by doctors.

[0010] Preferably, the shape memory metal head is aligned linearly with the main body in the initial position.

[0011] Preferably, the angle between the shape memory metal head and the main body is 10 to 15 degrees when the head is in the deformed position.

[0012] Preferably, the preset value is any value between 36.9 and 37.1 degrees Celsius.

[0013] Preferably, the shape memory metal head and the main body each have an inner tube structure and an outer tube structure that is sleeved on the inner tube structure. The inner tube structure of the shape memory metal head is connected to the inner tube structure of the main body, and the outer tube structure of the shape memory metal head is connected to the outer tube structure of the main body.

[0014] Preferably, the self-deformable insertion part further includes a tip and a camera module embedded in the tip, the camera module being partially exposed from the front end face of the tip; the tip is fitted with the inner tube structure and the outer tube structure in the shape memory metal head respectively, the tip closes the outer tube structure in the shape memory metal head, a through channel is provided through the tip to connect with the inner tube structure in the shape memory metal head, and a return hole is provided on the side wall of the outer tube structure in the shape memory metal head.

[0015] Preferably, the through channel extends through one side wall of the tip end adjacent to the front end face, so that a laterally open opening is formed on that side wall.

[0016] Preferably, the tip has an expansion notch for expanding the end of the through channel adjacent to the front end face, and the expansion notch also penetrates the front end face and the side wall on that side.

[0017] Preferably, the tip has a curved surface for defining the extended notch, the curved surface being laterally convex outward in a direction close to the center of the front end face, and the curved surface being convex in a cross-sectional direction in a direction close to the center of the front end face.

[0018] To achieve the above objectives, the hysteroscope of this utility model includes a handle for gripping and operation and the aforementioned self-deforming insertion part, wherein the end of the main body away from the shape memory metal head is fitted onto the handle.

[0019] Compared with the prior art, the design of "a shape memory metal head connected to the front of the main body along the insertion direction of the self-deformable insertion part and capable of bending to a deformed position relative to one side of the main body when the temperature it receives reaches a preset value, and capable of returning to the initial position relative to the main body when the temperature it receives is lower" makes the shape memory metal head only bend and deform relative to one side of the main body after being inserted into the uterine cavity and heated to a preset value by the uterine cavity. On the one hand, this makes it easier for the hysteroscope of this invention to be inserted into the uterine cavity, and on the other hand, it makes the bent and deformed shape memory metal head closer to the uterine cavity, thereby facilitating the doctor's examination and treatment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the hysteroscope of this utility model with the shape memory metal head in its initial position.

[0021] Figure 2 yes Figure 1 Enlarged view of part A' in the middle.

[0022] Figure 3 yes Figure 1 The diagram shown is a plan view of the hysteroscopy.

[0023] Figure 4 yes Figure 1 The image shown is a three-dimensional exploded view of the hysteroscope as the tip is removed from the shape memory metal head.

[0024] Figure 5 yes Figure 4 Enlarged view of part A in the middle.

[0025] Figure 6 Is Figure 2 Based on this, a planar view of the shape memory metal head when it is bent to the deformed position is displayed.

[0026] Figure 7 yes Figure 6 A plan view after the handle is hidden.

[0027] Figure 8 It is along Figure 7 Internal view of the section cut along the BB line.

[0028] Figure 9 yes Figure 8 Enlarged view of section D.

[0029] Figure 10 It is along Figure 7 Internal view of the section cut along the CC line.

[0030] Figure 11 This is a three-dimensional view of the tip of the self-deformable insertion part in the hysteroscope of this utility model. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to specific implementation examples and accompanying drawings, and the technical solutions of this utility model will be explained. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this utility model. However, this 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 departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. Embodiments of this utility model will now be described with reference to the accompanying drawings, in which similar element reference numerals represent similar elements.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Please see Figure 1 The hysteroscope 100 of this invention is used for uterine cavity examination and treatment. After the hysteroscope 100 is inserted into the uterine cavity, the temperature of the uterine cavity causes the shape memory alloy head 12 (described below) to reach the temperature condition for self-deformation, thereby causing the shape memory alloy head 12 inserted into the uterine cavity to change its shape automatically, thus better meeting the needs of doctors.

[0034] Combined Figure 3 , Figure 4 and Figure 6 As an example, the hysteroscope 100 of this invention includes a self-deforming insertion part 10 and a handle 20 for gripping operation, and the main body 11 (described below) is located away from the end of the shape memory metal head 12 (e.g. Figure 3 or Figure 6 The right end of the part is fitted onto the handle 20, and the handle 20 provides support for the self-deformable insertion part 10. Since the specific structure of the handle 20 is well known in the art and is not an improvement of this application, the specific structure of the handle 20 will not be described in detail here.

[0035] The self-deformable insertion part 10 has an elongated main body 11 and a self-deformable shape memory metal head 12 connected to the front of the main body 11 along the insertion direction of the self-deformable insertion part 10 (see arrow A). When the temperature of the shape memory metal head 12 reaches a preset value, the shape memory metal head 12 can be bent to one side relative to the main body 11. Figure 6 The deformation position shown; when the temperature of the shape memory metal head 12 is lower than the preset value, the shape memory metal head 12 can recover relative to the main body 11 to the position shown. Figure 1 or Figure 3 The initial position is shown.

[0036] Therefore, by utilizing the temperature difference between the body temperature inside the uterine cavity and the temperature outside the uterine cavity (such as room temperature), the shape memory metal head 12 located outside the uterine cavity can automatically return to its original temperature as the temperature decreases. Figure 1 or Figure 3 The initial position shown, and the memory metal head 12 inside the uterine cavity automatically bending to the preset value when the temperature rises. Figure 6 The deformation positions shown improve the ease of use of the hysteroscope 100 of this invention. More specifically, as follows:

[0037] like Figure 1 , Figure 3 and Figure 4 As shown, as an example, the shape memory metal head 12 is... Figure 3 The initial position shown is aligned with the main body 12 in a straight line, so that the shape memory metal head 11 in this state extends the straight line of the main body 12, and the boundary between the shape memory metal head 11 and the main body 12 (see...) Figure 3 and Figure 6 The vertical center line next to the L (where the protrusion is located) will not have any unevenness, further improving the smoothness of the self-deformable insertion part 10 into the uterine cavity. Additionally, regarding... Figure 6 In the example, the shape memory metal head 12 is... Figure 6When the deformed position is shown, the angle α between the head and the main body 12 is 10 to 15 degrees, for example, 10, 11, 12, 13, 14, or 15 degrees. Furthermore, the preset value is any value between 36.9 and 37.1 degrees Celsius, for example, 36.9, 37, or 37.1 degrees Celsius, to control the preset value at approximately 37 degrees Celsius. This allows the preset value to better match the temperature within the uterine cavity, so that after the shape memory metal head 12 is inserted into the uterine cavity, the shape memory metal head 12 can bend to [the desired position] in a relatively short time. Figure 6 The deformation location is shown.

[0038] like Figure 5 , Figure 8 and Figure 9 As shown, as an example, the shape memory metal head 12 has an inner tube structure 121 and an outer tube structure 122 that is fitted over the inner tube structure 121; as Figure 8 and Figure 10 As shown, as an example, the main body 11 also has an inner tube structure 111 and an outer tube structure 112 that is sleeved on the inner tube structure 111. The inner tube structure 121 of the shape memory metal head 12 is connected to the inner tube structure 111 of the main body 11, for example, by welding. The outer tube structure 122 of the shape memory metal head 12 is connected to the outer tube structure 112 of the main body 11, for example, by welding. Therefore, through welding between the inner tube structure 121 and the inner tube structure 111, and welding between the outer tube structure 122 and the outer tube structure 112, the shape memory metal head 12 is secured. 2. Reliability of connection between the inner tube structure 121 and the main body 11; and because of the welding between the inner tube structure 121 and the inner tube structure 111, there is no risk of leakage at the joint between the inner tube structure 121 and the inner tube structure 111, thus meeting the need for external liquid to enter the uterine cavity along the inner tube structure 111 (121) for cleaning the uterine cavity; similarly, because of the welding between the outer tube structure 122 and the outer tube structure 112, there is no risk of leakage at the joint between the outer tube structure 122 and the outer tube structure 112, so the liquid that is convenient for cleaning the uterine cavity can flow back through the gap between the outer tube structure 122 (112) and the inner tube structure 111 (121) and be discharged out of the uterine cavity.

[0039] like Figure 2 and Figure 4As shown, as an example, the self-deforming insertion part 10 also has a tip 13 and a camera module 14 embedded in the tip 13. The camera module 14 is also partially exposed from the front end face 131 of the tip 13 to meet the camera module 14's need to capture images of the uterine cavity. The tip 13 is fitted with the inner tube structure 121 and the outer tube structure 122 in the shape memory metal head 12, so that the tip 13 is fixed together with the inner tube structure 121 and the outer tube structure 122, respectively. In addition, the tip 13 also closes the outer tube structure 122 in the shape memory metal head 12 to control the liquid for cleaning the uterine cavity to flow back to the gap between the outer tube structure 122 and the inner tube structure 121 only through the return hole 1222 opened on the side wall of the outer tube structure 122. Furthermore, a through channel 132 is opened through the tip 13 to connect with the inner tube structure 121 in the shape memory metal head 12 (see Figure 2 and Figure 11 As shown). Specifically, at Figure 2 and Figure 11 In this example, the penetrating channel 132 penetrates one side wall 133 of the tip 13 adjacent to the anterior face 131, so that a laterally opening opening 134 is formed on this side wall 133. This allows instruments entering the uterine cavity from the outside through the penetrating channel 132 to have a larger range of bending and swinging, thus better meeting the needs of external instrument operation. More specifically, in Figure 2 and Figure 11 As an example, the tip 13 has an expansion notch 135. The expansion notch 135 is used to expand the end of the penetrating channel 132 adjacent to the front end face 131. The expansion notch 135 also penetrates the front end face 131 and the side wall 133 on the same side. On the one hand, it improves the smoothness of the outside entering the uterine cavity from the penetrating channel 132. On the other hand, it can further improve the bending and swinging range of the instruments entering the uterine cavity from the penetrating channel 132.

[0040] In order to maximize the range of bending and swinging of the instruments entering the uterine cavity through the penetrating channel 132, Figure 11 In this example, the leading end 13 has a curved surface 136 for defining the extended notch 135. The curved surface 136 is arranged to bulge laterally outward in the direction near the center 1311 of the leading end face 131, and in the transverse direction, it bulges towards the center 1311 of the leading end face 131. It should be noted that... Figure 11 In this context, the transverse direction of the curved surface 136 refers to the direction perpendicular to the center 1311 of the front end surface 131.

[0041] Compared with the prior art, the design of the self-deformable insertion part 10, which is connected to the front of the main body 11 along the insertion direction of the self-deformable insertion part 10 and can bend to a deformed position relative to the main body 11 on one side when the temperature it receives reaches a preset value, and can return to the initial position relative to the main body 11 when the temperature it receives is lower, makes the self-deformable insertion part 10 of this invention easier to insert into the uterine cavity. On the other hand, it makes the bent and deformed self-deformable insertion part 10 closer to the uterine cavity, thus facilitating the doctor's examination and treatment.

[0042] To clarify, the "shape memory metal head 12" refers to the fact that it is made of shape memory metal. In other words, the material of the shape memory metal head 12 is shape memory metal. Shape memory metal is defined as a special metallic material that can recover its original macroscopic shape after undergoing plastic deformation within a certain temperature range and then recovering its original macroscopic shape within another temperature range. Among them, Au-Cd, Ag-Cd, Cu-Zn, Cu-Zn-Al, Cu-Zn-Sn, Cu-Zn-Si, Cu-Sn, Cu-Zn-Ga, In-Ti, Au-Cu-Zn, NiAl, Fe-Pt, Ti-Ni, Ti-Ni-Pd, Ti-Nb, U-Nb, and Fe-Mn-Si are all shape memory metals. Alternatively, the material of the main body 11 can be the same as that of the memory metal head 12, or it can be a different metal. When the material of the main body 11 is the same as that of the memory metal head 12, only the memory metal head 12 is shaped, and the shaping temperature is controlled at around 37 degrees Celsius. When the material of the main body 11 is a different metal from that of the memory metal head 12, laser welding is used to weld the main body 11 and the memory metal head 12 together.

[0043] It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, the embodiments disclosed above are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, equivalent variations made within the scope of the claims of this utility model are still within the scope of this utility model.

Claims

1. A self-deformable insertion part of a hysteroscope, comprising a long, narrow main body, characterized in that, The self-deformable insertion part also has a self-deformable shape memory metal head connected to the front of the main body along the insertion direction of the self-deformable insertion part. When the temperature it receives reaches a preset value, the shape memory metal head can bend to a deformed position relative to one side of the main body. When the temperature it receives is lower than the preset value, the shape memory metal head can return to its initial position relative to the main body.

2. The self-deformable insertion part according to claim 1, characterized in that, The shape memory metal head is aligned linearly with the main body in the initial position.

3. The self-deformable insertion part according to claim 1, characterized in that, The angle between the shape memory metal head and the main body is 10 to 15 degrees when the head is in the deformed position.

4. The self-deforming insertion part according to claim 1, characterized in that, The preset value is any value between 36.9 and 37.1 degrees Celsius.

5. The self-deformable insertion part according to claim 1, characterized in that, The shape memory metal head and the main body each have an inner tube structure and an outer tube structure that is sleeved on the inner tube structure. The inner tube structure of the shape memory metal head is connected to the inner tube structure of the main body, and the outer tube structure of the shape memory metal head is connected to the outer tube structure of the main body.

6. The self-deformable insertion part according to claim 5, characterized in that, The self-deformable insertion part also has a tip and a camera module embedded in the tip. The camera module is also partially exposed from the front end face of the tip. The tip is fitted with the inner tube structure and the outer tube structure in the shape memory metal head respectively. The tip closes the outer tube structure in the shape memory metal head. A through channel is opened in the tip to connect with the inner tube structure in the shape memory metal head. A return hole is opened on the side wall of the outer tube structure in the shape memory metal head.

7. The self-deformable insertion part according to claim 6, characterized in that, The through-passage extends through one side wall of the tip end adjacent to the front end face, so that a laterally open opening is formed on that side wall.

8. The self-deformable insertion part according to claim 7, characterized in that, The tip has an expansion notch, which is used to expand the end of the through channel adjacent to the front end face. The expansion notch also penetrates the front end face and the side wall on that side.

9. The self-deformable insertion part according to claim 8, characterized in that, The tip has a curved surface for defining the extended notch, the curved surface being laterally convex outward toward the center of the front end face, and the curved surface being convex in the cross-sectional direction toward the center of the front end face.

10. A hysteroscope, comprising a handle for gripping and operating, characterized in that, The hysteroscope further includes a self-deforming insertion part according to any one of claims 1 to 9, wherein the end of the main body portion away from the shape memory metal head is fitted onto the handle.

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