Hysteroscope

Abstract

The utility model discloses a hysteroscope. The hysteroscope comprises a handle, a camera lens and an insertion part, the tail end of the long strip section is connected with the handle in an assembled mode, the bent inclined section is bent out of the head end of the long strip section and obliquely extends in the direction away from the handle, the tip end is connected with the bent inclined section in an assembled mode, and the camera lens is assembled on the tip end. The pick-up lens is also obliquely arranged relative to the bent inclined section in the bending direction of the bent inclined section, so that the inclination angle of the pick-up lens relative to the long strip section is the sum of the inclination angle of the bent inclined section relative to the long strip section and the inclination angle of the pick-up lens relative to the bent inclined section; therefore, the hysteroscope provided by the utility model can realize a larger visual angle to meet more clinical requirements, and can also meet the operation and use of hard instruments at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of medical instruments, in particular to a hysteroscope with large view direction angle and meet the insertion use of hard instrument of outside. BACKGROUND

[0002] Due to shorter recovery time, shorter duration of surgery and low cost, minimally invasive surgical procedures have become increasingly popular in the field of surgical procedures.

[0003] Minimally invasive surgical procedures are typically performed by inserting instruments through small access ports or artificially created openings in a patient, and hysteroscopy is one of them.

[0004] Among them, for the hysteroscope with a hard tube structure and the head end of the insertion part cannot be adjusted by the angle of the steel wire traction, in order to meet the hysteroscope with larger view direction angle, the head end of the insertion part in the hysteroscope is bent into a curved structure with an inclination of about 22 degrees relative to other positions of the insertion part. Because the curved structure is bent into a hard tube structure with an inclination of about 22 degrees, the hard instrument from the outside cannot enter the uterine cavity normally along the insertion part due to the large inclination angle, and can only be used for the insertion operation of flexible instruments in the form of spring tube.

[0005] Therefore, there is an urgent need for a hysteroscope to overcome the above-mentioned defects. SUMMARY

[0006] The utility model aims at providing a hysteroscope with large view direction angle and meet the insertion use of hard instrument from outside.

[0007] To achieve the above-mentioned purpose, the hysteroscope of the utility model comprises a handle, a camera lens and an insertion part. The insertion part has a long strip segment with a tail end assembled with the handle, a curved inclined segment bent from the head end of the long strip segment and inclined to stretch away from the handle, and a tip head assembled with the curved inclined segment. The camera lens is assembled on the tip head, and the camera lens is also inclined to the curved inclined segment in the bending direction of the curved inclined segment, so that the inclination angle of the camera lens relative to the long strip segment is the sum of the inclination angle of the curved inclined segment relative to the long strip segment and the inclination angle of the camera lens relative to the curved inclined segment.

[0008] Compared with the prior art, the camera lens is arranged to be inclined to the curved inclined section in the bending direction of the curved inclined section, so that the inclination angle of the camera lens relative to the long strip section is the sum of the inclination angle of the curved inclined section relative to the long strip section and the inclination angle of the camera lens relative to the curved inclined section. In this way, the view angle of the camera lens is the superposition of the inclination angle of the curved inclined section relative to the long strip section and the inclination angle of the camera lens relative to the curved inclined section. Therefore, in the case that the camera lens has the same view angle, the inclination angle of the curved inclined section relative to the long strip section is effectively reduced, which on the one hand meets more clinical needs in the case of a larger view angle, and on the other hand ensures that the hard instrument in the external environment can be normally inserted and pulled out in the insertion part.

[0009] Preferably, the inclination angle of the curved inclined section relative to the long strip section ranges from 11 degrees to 13 degrees, and the inclination angle of the camera lens relative to the curved inclined section ranges from 9 degrees to 11 degrees.

[0010] Preferably, the inclination angle of the curved inclined section relative to the long strip section is 11 degrees, 12 degrees or 13 degrees, and the inclination angle of the camera lens relative to the curved inclined section is 9 degrees, 10 degrees or 11 degrees.

[0011] Preferably, the long strip section and the curved inclined section each include an outer tube structure and an inner tube structure arranged in the outer tube structure, the inner tube structure of the long strip section is connected to the inner tube structure of the curved inclined section, the outer tube structure of the long strip section is connected to the outer tube structure of the curved inclined section, and the tip head is sleeved with the inner tube structure and the outer tube structure of the curved inclined section, respectively.

[0012] Preferably, the inner tube structure of the curved inclined section is flat, and the flatness of the inner tube structure of the curved inclined section is arranged to change in the direction away from the long strip section.

[0013] Preferably, the cross sections of the outer tube structures of the long strip section and the curved inclined section are symmetrical structures.

[0014] Preferably, the cross section of the inner tube structure of the curved inclined section is an asymmetrical structure in the flat direction, and the cross section of the inner tube structure of the long strip section is a symmetrical structure.

[0015] Preferably, the front end head comprises an end head body and a first channel formed in the end head body, the end head body has oppositely arranged first and second end faces, the first channel penetrates the first end face and extends towards the second end face, and the first channel also penetrates a side wall of the end head body adjacent to the second end face to form a breach opening laterally on the side wall; the camera lens is assembled on the end head body, and the end head body is sleeved with the inner tube structure and the outer tube structure of the curved inclined section.

[0016] Preferably, the front end head further comprises an expansion breach formed in the end head body, the expansion breach is used for expanding an end of the first channel adjacent to the second end face, and the expansion breach also penetrates the second end face and the side wall.

[0017] Preferably, the end head body has a curved surface used for defining the expansion breach, the curved surface is arranged to be laterally convex towards a center close to the second end face, and the curved surface is arranged to be convex in a cross direction towards the center close to the second end face.

[0018] Preferably, the front end head further comprises a sleeving cavity, a sunken ring groove and an embedding cavity for assembling the camera lens, the sleeving cavity is formed in the end head body, the sleeving cavity is used for expanding an end of the first channel adjacent to the first end face, the sleeving cavity also penetrates the first end face and is sleeved with the inner tube structure of the curved inclined section, the sunken ring groove is formed in a side wall of the end head body, the sunken ring groove is arranged to extend around the side wall of the end head body and is sleeved with the outer tube structure of the curved inclined section, and the embedding cavity is formed in a position of the end head body surrounded by the sunken ring groove and facing away from the breach, and an exposed hole is formed in the second end face for exposing the camera lens. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a plan view of the hysteroscope of the utility model.

[0020] Figure 2 is an internal view along the A-A line in Figure 1 .

[0021] Figure 3 is an enlarged view of the B part in Figure 2 .

[0022] Figure 4 is a perspective view of the insertion part in the hysteroscope of the utility model.

[0023] Figure 5 is an enlarged view of the C part in Figure 4 .

[0024] Figure 6 is Figure 4 is a perspective view of the insertion portion after the tip has been removed.

[0025] Figure 7 is Figure 6 is a close-up view of portion D in FIG. 1.

[0026] Figure 8 is Figure 6 is a plan view of the insertion portion after the tip has been removed.

[0027] Figure 9 is Figure 8 is a close-up view of portion E in FIG. 1.

[0028] Figure 10 is Figure 6 is a plan view of the insertion portion after the tip has been removed.

[0029] Figure 11 is a close-up view of the interior of the insertion portion along line F-F in FIG. 1. Figure 10

[0030] Figure 12 is a view showing the insertion of an external instrument. Figure 11

[0031] is a perspective view of the tip of the insertion portion in the hysteroscope of the present application. Figure 13

[0032] is Figure 14 is a perspective view of the tip at another angle. Figure 13 DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with specific implementation examples and the accompanying drawings, and the hysteroscope technical solutions will be described and explained. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. The specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application 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 content of the present application, so the present application is not limited by the specific embodiments disclosed below. The embodiments of the present application will now be described with reference to the accompanying drawings, wherein like reference numerals represent like elements.

[0034] ​​In the description of the utility model, it is understood that the orientation or positional relationship indicated by 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" is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] Please combine Figures 1 to 3 The hysteroscope 100 of the utility model comprises a handle 10, a camera lens 20 and an insertion part 30. Since the specific structure of both the handle 10 and the camera lens 20 is well known in the art, it will not be described here again.

[0036] Again combine Figure 4 , Figure 6 and Figure 10 As an example, the insertion part 30 has a long strip segment 30a assembled and connected with the tail end 31 of the handle 10, a curved and inclined segment 30b curved out from the head end 32 of the long strip segment 30 and inclined to extend away from the handle 10, and a tip head 30c assembled and connected with the curved and inclined segment 30b, which provides a supporting effect for the tip head 30c by the curved and inclined segment 30b and provides a supporting effect for the long strip segment 30a by the handle 10.

[0037] At the same time, the camera lens 20 is assembled on the tip head 30c, which provides a supporting effect for the camera lens 20 by the tip head 30c; the camera lens 20 is also inclinedly arranged relative to the curved and inclined segment 30b in the curved direction (see the clockwise direction in Figure 3 ) of the curved and inclined segment 30b, so that the inclination angle α3 of the camera lens 20 relative to the long strip segment 30a is the sum of the inclination angle α1 of the curved and inclined segment 30b relative to the long strip segment 30a and the inclination angle α2 of the camera lens 20 relative to the curved and inclined segment 30b, that is, α3=α1+α2; therefore, by means of the inclination angle α2 of the camera lens 20 relative to the curved and inclined segment 30b in the curved direction of the curved and inclined segment 30b, the inclination angle α1 of the curved and inclined segment 30b relative to the long strip segment 30a can be reduced, thereby effectively avoiding that the inclination angle α1 of the curved and inclined segment 30b relative to the long strip segment 30a is too large to cause the external hard instrument 200 (see Figure 12 ) to be unable to normally enter the uterine cavity along the insertion part 30. More specifically, as follows:

[0038] As Figure 3As shown, the inclination angle a1 of the curved inclined section 30b relative to the long strip section 30a ranges from 11 degrees to 13 degrees, and optionally, the inclination angle a1 is 11 degrees, 12 degrees or 13 degrees, as an example; and the inclination angle a2 of the camera lens 20 relative to the curved inclined section 30b ranges from 9 degrees to 11 degrees, and optionally, the inclination angle a2 is 9 degrees, 10 degrees or 11 degrees, as an example; so that the inclination angle a3 of the camera lens 20 relative to the long strip section 30a ranges from 20 degrees to 24 degrees, for example, 20 degrees, 22 degrees or 24 degrees, so as to control the inclination angle a3 within a range of about 22 degrees, thereby reducing the manufacturing difficulty of the hysteroscope 100 of the utility model, and thus being conducive to the production of the hysteroscope 100 of the utility model.

[0039] In combination Figures 3 to 10 , as an example, the long strip section 30a and the curved inclined section 30b each comprise an outer tube structure 33 and an inner tube structure 34 arranged in the outer tube structure 33, the inner tube structure 34 of the long strip section 30a is connected to the inner tube structure 34 of the curved inclined section 30b, for example, so that the inner tube structures 34 of the long strip section 30a and the curved inclined section 30b are integrally formed, so as to facilitate the manufacturing of the inner tube structure 34; the outer tube structure 33 of the long strip section 30a is connected to the outer tube structure 33 of the curved inclined section 30b, for example, so that the outer tube structures 33 of the long strip section 30a and the curved inclined section 30b are integrally formed, so as to facilitate the manufacturing of the outer tube structure 33; and the tip head 30c is sleeved with the inner tube structure 34 and the outer tube structure 33 of the curved inclined section 30b, respectively, so as to improve the convenience and reliability of the assembly between the tip head 30c and the curved inclined section 30b. Specifically, in combination Figure 9 、 Figure 11 and Figure 12 , as an example, the inner tube structure 34 of the curved inclined section 30b is flat, and the flatness of the inner tube structure 34 of the curved inclined section 30b changes in the direction away from the long strip section 30a, and optionally, the flatness of the inner tube structure 34 of the curved inclined section 30b increases in the direction away from the long strip section 30a, as an example; obviously, according to actual needs, the flatness of the inner tube structure 34 of the curved inclined section 30b can also decrease in the direction away from the long strip section 30a, and the flatness here refers to the ratio of the size of one direction to the size of another direction of the cross section 341 (see Figure 11 and Figure 12 ) of the inner tube structure 34 of the curved inclined section 30b, for example, in Figure 11 , the flatness is the ratio of P1 to P2, that is, P1 divided by P2; since P1 is greater than P2, the value of the flatness is greater than 1; the greater the ratio of P1 to P2, the greater the flatness. More specifically, in Figure 11 and Figure 12In the present embodiment, the outer tube structure 33 of both the long section 30a and the curved inclined section 30b is a symmetrical structure in cross section, for facilitating the manufacture of the outer tube structure 33. Alternatively, the outer tube structure 33 of both the long section 30a and the curved inclined section 30b is a circular ring, and it is obvious that it can be designed as an elliptical ring or a regular polygonal ring according to actual needs, and therefore it is not limited to Figure 11 and Figure 12 . In addition, the inner tube structure 34 of the long section 30a is a symmetrical structure in cross section, for facilitating the manufacture of the inner tube structure 34 of the long section 30a. Alternatively, the inner tube structure 34 of the long section 30a can be a circular ring, an elliptical ring or a regular polygonal ring, for example. Figure 11 and Figure 12 . The cross section 341 of the inner tube structure 34 of the curved inclined section 30b is an asymmetrical structure in the up-down direction (see FIG. 3), and it is designed such that one side of the inner tube structure 34 of the curved inclined section 30b is flatter than the other side, for example, the lower side of the inner tube structure 34 in Figure 11 and 12 is flatter than the upper side.

[0040] In the insertion portion 30, the inner tube structure 34 of the curved inclined section 30b is arranged such that its flatness changes in a direction away from the long section 30a, so as to form a larger gap between the inner tube structure 34 and the hard instrument 200 of the outside world, for example, when the hard instrument 200 of the outside world is inserted into the inner tube structure 34, the inner tube structure 34 of the curved inclined section 30b leaves a sufficient gap with the instrument 200 of the outside world in the left-right direction; at the same time, it also forms a larger gap between the inner tube structure 34 of the curved inclined section 30b and the outer tube structure 33, for example, the inner tube structure 34 and the outer tube structure 33 leave a sufficient gap in the left-right direction, solving the defect of insufficient fluid passage gap. Figure 12 Figure 11 Figure 12

[0041] In combination with Figure 3 , Figure 5 , Figure 7 , Figure 13 and Figure 14 ​​​As an example, the tip head 30c comprises a tip body 35 and a first channel 36 formed in the tip body 35. The tip body 35 has oppositely arranged first and second end faces 351 and 352, the first channel 36 extends through the first end face 351 and the first channel 36 extends towards the second end face 352, the first channel 36 further extends through a side wall 353 of the tip body 35 adjacent to the second end face 352, so that a break 354 is formed on the side wall 353 and the break 354 is open laterally. In this way, the hard instrument 200 extending out of the tip body 35 can have a large operation space on the side wall 353 of the tip body 35 where the break 354 is located, so as to effectively reduce the restriction of the tip body 35 on the movement of the hard instrument 200. The camera lens 20 is assembled on the tip body 35, and the tip body 35 is sleeved with the inner tube structure 34 and the outer tube structure 33 of the curved inclined section 30b. Specifically, in Figure 13 As an example, the tip head 30c further comprises an expansion gap 356 formed in the tip body 35, the expansion gap 356 is used to expand the end of the first channel 36 adjacent to the second end face 352, and the expansion gap 356 further extends through the second end face 352 and the side wall 353. Therefore, by means of the expansion gap 356, on the one hand, the movement range of the hard instrument 200 extending out of the tip body 35 can be improved, and on the other hand, the operation of the hard instrument 200 extending out of the tip body 35 or pulling out of the tip body 35 is facilitated. More specifically, in Figure 3 、 Figure 5 、 Figure 7 and Figure 13 As an example, the tip body 35 has a curved surface 355 used to define the expansion gap 356, the curved surface 355 is arranged to be laterally convex towards the center close to the second end face 352, and the curved surface 355 is arranged to be convex in the cross direction towards the center close to the second end face 352. In this way, the hard instrument 200 extending out of the tip body 35 can also be bent downwardly, so as to further improve the movement range of the hard instrument 200 extending out of the tip body 35, and effectively reduce the damage to the human body. In addition, by means of the curved surface 355 arranged to be convex in the cross direction towards the center C close to the second end face 352, the instrument can be guided during the process of the hard instrument 200 extending out of the tip body 35.

[0042] Further in combination with Figure 3 、 Figure 5 、 Figure 7 、 Figure 13 and Figure 14As an example, the front end 30c further comprises a sleeving cavity 37, a sunken ring groove 38 and an embedding cavity 39 for assembling the camera lens 20. The sleeving cavity 37 is formed in the end body 35, the sleeving cavity 37 is used to extend the end of the first channel 36 adjacent to the first end face 351, the sleeving cavity 37 further penetrates the first end face 351 and is sleeved with the inner tube structure 34 of the curved inclined section 30b, so as to improve the assembly reliability of the inner tube structure 34 of the curved inclined section 30b and the end body 35; the sunken ring groove 38 is formed on the side wall of the end body 35, the sunken ring groove 38 is arranged around the side wall of the end body 35 and is sleeved with the outer tube structure 33 of the curved inclined section 30b, so that the end body 35 and the outer tube structure 33 of the curved inclined section 30b are flush with each other in the lateral direction after assembly, avoiding the uneven defects in the lateral direction, so that the front end 30c is more neat. The embedding cavity 39 is formed in the position of the end body 35 surrounded by the sunken ring groove 38 and facing away from the break 354, and the exposed hole 3521 is formed on the second end face 352 for exposing the camera lens 20, so as to meet the camera needs of the camera lens 20.

[0043] Compared with the prior art, the curved inclined section 30b is inclined and extended away from the handle 10, and the camera lens 20 is also inclined to the curved inclined section 30b in the curved direction of the curved inclined section 30b, so that the inclination angle α3 of the camera lens 20 relative to the long section 30a is the sum of the inclination angle α1 of the curved inclined section 30b relative to the long section 30a and the inclination angle α2 of the camera lens 20 relative to the curved inclined section 30b. This design makes the viewing angle of the camera lens 20 be the sum of the inclination angle α1 of the curved inclined section 30b relative to the long section 30a and the inclination angle α2 of the camera lens 20 relative to the curved inclined section 30b, so that the inclination angle α1 of the curved inclined section 30b relative to the long section 30a is effectively reduced under the condition that the camera lens 20 has the same viewing angle, which on the one hand meets more clinical needs under the condition of a larger viewing angle, and on the other hand ensures that the external hard instrument 200 can be normally inserted and pulled out in the insertion part 30.

[0044] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without deviating from the spirit or essential characteristics of the present application. Consequently, the embodiments should be seen only as exemplary and in no way as restrictive, the scope of the present application being defined only by the claims below rather than by the above description, and therefore all changes coming within the meaning and range of equivalency of the claims are therefore encompassed by the present application. No reference sign in the claims should be considered as limiting the claim being involved. While the application has been described with reference to exemplary embodiments, it is to be understood that the application is not limited to the disclosed exemplary embodiments. Instead, it is intended and to be within the scope of the application to cover all the alternatives, modifications, and equivalents falling within the scope of the claims.

Claims

1. A hysteroscope comprising a handle, a camera lens, and an insertion portion, characterized by, The insertion portion has a long section assembled with the handle at a tail end, a curved and inclined section curved out from a head end of the long section and extending in an inclined direction away from the handle, and a tip head assembled with the curved and inclined section, the camera lens being assembled on the tip head, and the camera lens being arranged in an inclined manner relative to the curved and inclined section in a curved direction of the curved and inclined section, so that an inclined angle of the camera lens relative to the long section is a sum of an inclined angle of the curved and inclined section relative to the long section and an inclined angle of the camera lens relative to the curved and inclined section.

2. The hysteroscope according to claim 1, characterized in that The inclined angle of the curved and inclined section relative to the long section ranges from 11 degrees to 13 degrees, and the inclined angle of the camera lens relative to the curved and inclined section ranges from 9 degrees to 11 degrees.

3. The hysteroscope according to claim 2, characterized in that The inclined angle of the curved and inclined section relative to the long section is 11 degrees, 12 degrees or 13 degrees, and the inclined angle of the camera lens relative to the curved and inclined section is 9 degrees, 10 degrees or 11 degrees.

4. The hysteroscope according to claim 1, characterized in that The long section and the curved and inclined section each include an outer tube structure and an inner tube structure arranged in the outer tube structure, the inner tube structure of the long section is butted with the inner tube structure of the curved and inclined section, the outer tube structure of the long section is butted with the outer tube structure of the curved and inclined section, and the tip head is sleeved with the inner tube structure and the outer tube structure of the curved and inclined section respectively.

5. The hysteroscope according to claim 4, characterized in that The inner tube structure of the curved and inclined section is flat, and the flatness of the inner tube structure of the curved and inclined section is arranged in a changing manner away from the long section.

6. The hysteroscope according to claim 5, characterized in that The outer tube structures of the long section and the curved and inclined section are both symmetrical structures in cross section, the inner tube structure of the curved and inclined section is an asymmetrical structure in cross section in a flat direction, and the inner tube structure of the long section is a symmetrical structure in cross section.

7. The hysteroscope according to claim 4, characterized in that The tip head includes a head body and a first channel formed in the head body, the head body has oppositely arranged first and second end faces, the first channel penetrates through the first end face and extends toward the second end face, and the first channel also penetrates through a side wall of the head body adjacent to the second end face to form a breach laterally open on the side wall; the camera lens is assembled on the head body, and the head body is sleeved with the inner tube structure and the outer tube structure of the curved and inclined section respectively.

8. The hysteroscope according to claim 7, characterized in that The tip head further includes an expansion gap formed in the head body, the expansion gap is used to expand an end of the first channel adjacent to the second end face, and the expansion gap also penetrates through the second end face and the side wall.

9. The hysteroscope according to claim 8, characterized in that The head body has a curved surface used to define the expansion gap, the curved surface is arranged in a lateral outward convex manner toward a center of the second end face, and the curved surface is arranged in a convex manner toward the center of the second end face in a cross direction.

10. The hysteroscope of claim 7, wherein, The front end further comprises a sleeving cavity, a sunken ring groove and an embedding cavity for assembling the camera lens, the sleeving cavity is arranged in the end body, the sleeving cavity is used for expanding the end of the first channel adjacent to the first end face, the sleeving cavity further penetrates the first end face and is sleeved with the inner tube structure of the curved inclined section; the sunken ring groove is arranged on the side wall of the end body, the sunken ring groove is arranged around the side wall of the end body and is sleeved with the outer tube structure of the curved inclined section; the embedding cavity is arranged on the position of the end body surrounded by the sunken ring groove and facing away from the break, and the second end face is provided with an exposed hole for exposing the camera lens.

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