Hysteroscope

Abstract

The utility model discloses a hysteroscope, which comprises a handle, an insertion part, a strip-shaped FPC (Flexible Printed Circuit), a PCB (Printed Circuit Board) and an outer shaft sleeve, wherein the PCB is assembled in the handle; the insertion part comprises a tip and an endoscopic tube, the head end of the endoscopic tube is assembled and connected with the tip, a lens is assembled in the tip, the tail end of the endoscopic tube is assembled on the handle, and the tail end of the endoscopic tube further extends into the outer shaft sleeve; the FPC is located in the endoscopic tube, the head end of the FPC penetrates out of the head end of the endoscopic tube and is electrically connected with the lens, the tail end of the FPC penetrates out of the tail end of the endoscopic tube, and the tail end of the FPC is further wound on the outer shaft sleeve and is electrically connected with the PCB. The hysteroscope can prevent the FPC from being uncontrollable in the rotation process of the insertion part.

Description

Technical Field

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

[0002] As is known to all, a hysteroscope can be inserted into the uterine cavity of the person being examined to perform visual inspection and surgery on the uterine cavity.

[0003] Conventional hysteroscopes include a handle, an insertion tube, an FPC (Fiber Optic Cable), a lens, and a printed circuit board (PCB) mounted within the handle. The insertion tube includes a tip and an endoscope. The tip is connected to the head of the endoscope, and the lens is mounted within the tip. The tail of the endoscope is rotatably mounted within the handle, allowing the insertion section to rotate relative to the handle, thereby providing the lens within the tip with a wider viewing angle. The head end of the FPC extends from the head end of the endoscope and is electrically connected to the lens. The tail end of the FPC extends from the tail end of the endoscope and is electrically connected to the PCB.

[0004] Since the insert needs to rotate relative to the handle and the PCB is fixed to the handle, the FPC responsible for electrically connecting the lens and the PCB needs to be of sufficient length to allow the FPC to freely expand and contract within the handle during the rotation of the insert.

[0005] However, the reserved length of the FPC is in an unconstrained state in the handle, so during the rotation of the insertion portion, there is uncertainty in the free expansion and contraction of the reserved length of the FPC, which can easily cause the FPC to bend and be damaged, or interfere with other electrical components.

[0006] Therefore, there is an urgent need for a hysteroscope to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of the utility model is to provide a hysteroscope to prevent the FPC from being uncontrollable during the rotation of the insertion portion, thereby avoiding the FPC from being bent and damaged or interfering with other electrical components.

[0008] To achieve the above-mentioned objectives, the hysteroscope of the present invention comprises a handle, an insertion portion, an elongated flexible printed circuit board (FPC), a printed circuit board (PCB) mounted within the handle, and an outer sleeve mounted within the handle. The insertion portion includes a tip and an endoscope tube, the tip end of the endoscope tube being assembled and connected to the tip end, the tip end housing a lens, and the tail end of the endoscope tube being mounted within the handle. The FPC is located within the endoscope tube, with the tip end of the FPC extending from the tip end and electrically connected to the lens, and the tail end of the FPC extending from the tail end of the endoscope tube, further wrapped around the outer sleeve and electrically connected to the PCB.

[0009] Compared with the existing technology, with the help of an outer sleeve assembled in the handle, the tail end of the FPC is wrapped around the outer sleeve and electrically connected to the PCB board. In this way, the FPC can be relaxed or tightened during the rotation of the insertion part to achieve the telescopic orientation of the FPC, preventing the FPC from being uncontrollable during the rotation of the insertion part, thereby avoiding the FPC from bending and being damaged or interfering with other electrical components.

[0010] Preferably, the tail end of the FPC is wrapped around the outer sleeve at least once; the tail end of the endoscope is provided with a lateral channel adjacent to the outer sleeve, and the tail end of the FPC passes through the tail end of the endoscope from the lateral channel.

[0011] Preferably, the hysteroscope of the present invention further comprises an inner sleeve, which is rotatably sleeved in the outer sleeve, and the inner sleeve is also arranged around the rear end of the endoscope.

[0012] Preferably, a limiting ring with open ends is axially extended from the head end of the inner sleeve, and the limiting ring is arranged around the tail end of the endoscope, and the tail end of the FPC is also located in the gap between the head end and the tail end of the limiting ring.

[0013] Preferably, the hysteroscope of the present invention also includes a rotating sleeve arranged on the rear end of the endoscope, wherein the rotating sleeve is located between the inner sleeve and the front end in the length direction of the endoscope, the rotating sleeve is fixedly connected to the rear end of the endoscope, and the rotating sleeve is also snap-connected to the inner sleeve.

[0014] Preferably, an engaging protrusion protrudes radially outward from the limiting ring, and the engaging protrusion is arranged opposite to the gap. A circular protrusion ring extends axially from the tail end of the rotating sleeve, and the circular protrusion ring is provided with an engaging groove engaged with the engaging protrusion and a matching groove matched with the gap.

[0015] Preferably, the outer diameter of the tail end of the rotating sleeve is larger than the outer diameter of the outer sleeve.

[0016] Preferably, a limiting protrusion extends radially outward from the outer sleeve, and the position of the FPC wound around the outer sleeve is limited between the limiting protrusion and the tail end of the rotating sleeve.

[0017] Preferably, the handle is provided with a first support block and a second support block which jointly support the rotation of the rotating sleeve from radially opposite sides of the rotating sleeve, the first support block and the second support block each having an arc support surface for supporting the rotating sleeve, and the rotating sleeve is limited to be located between the arc support surfaces of the first support block and the second support block.

[0018] Preferably, the arc support surfaces of the first support block and the second support block are spaced apart by a certain distance in the radial direction of the rotating sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of the hysteroscope of the present utility model.

[0020] Figure 2 yes Figure 1 A perspective view of the hysteroscope is shown with the tip separated from the endoscope tube and the handle itself separated.

[0021] Figure 3 yes Figure 1 A plan view of the hysteroscope is shown.

[0022] Figure 4 It is along Figure 3 Internal view cut along the midline BB.

[0023] Figure 5 yes Figure 1 A stereoscopic view of the hysteroscope is shown with the handle hidden.

[0024] Figure 6 yes Figure 5 A three-dimensional view of the tip being separated from the endoscope and the rotating sleeve being moved away from the outer sleeve.

[0025] Figure 7 yes Figure 6 A stereogram from another angle.

[0026] Figure 8 yes Figure 6 A perspective view after hiding the rotating sleeve, outer sleeve and inner sleeve. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] See also Figure 1 and Figure 2 The hysteroscope 100 of the present invention includes a handle 10 , an inserting portion 20 , a long FPC 30 , a PCB board 40 assembled in the handle 10 , and an outer sleeve 60 assembled in the handle 10 .

[0030] The insertion portion 20 includes a tip 21 and an endoscope 22. The tip 21 is assembled and connected to the head end 221 of the endoscope 22, which provides a mounting location and support for the tip 21. The tip 21 is equipped with a lens 50 to meet the imaging needs of the hysteroscope 100 of the present invention. The tail end 222 of the endoscope 22 is assembled to the handle 10, which provides a mounting location and support for the endoscope 22.

[0031] The FPC 30 is located in the endoscope 20, and is hidden and protected by the endoscope 20. The head end 31 of the FPC 30 passes through the head end 221 of the endoscope 22 and is electrically connected to the lens 50, so that the PCB 40 can control the operation of the lens 50 through the FPC 30. The tail end 32 of the FPC 30 passes through the tail end 222 of the endoscope 22, and the tail end 32 of the FPC 30 is also wrapped around the outer sleeve 60 and is electrically connected to the PCB 40. Figure 2 Specifically, Figure 8 As an example, the tail end 32 of the FPC 30 is wrapped around the outer sleeve 60 for two and a half turns, so that the FPC 30 can be better oriented in the process of the insertion portion 20 rotating relative to the handle 10; Obviously, according to actual needs, the tail end 32 of the FPC 30 can also be wrapped around the outer sleeve 60 for one turn, one and a half turns, two turns or three turns, so it is not limited to the following. Figure 8 More specifically, the following are shown:

[0032] like Figures 5 to 7As shown, as an example, the hysteroscope 100 of the present invention further includes an inner sleeve 70 and a rotating sleeve 80 that is outer-mounted on the tail end 222 of the endoscope tube 22. The rotating sleeve 80 is located between the inner sleeve 70 and the tip 21 in the length direction of the endoscope tube 22 (see the direction indicated by arrow A and the opposite direction). The rotating sleeve 80 is fixedly connected to the tail end 222 of the endoscope tube 22 so that the rotating sleeve 80 and the insertion portion 20 are fixed together and rotate together relative to the handle 10; the rotating sleeve 80 is also engaged with the inner sleeve 70 to facilitate the assembly and disassembly operation between the rotating sleeve 80 and the inner sleeve 70, and can also meet the need for the inner sleeve 70 to rotate together with the rotating sleeve 80. The inner sleeve 70 is rotatably mounted in the outer sleeve 60, and the outer sleeve 60 provides rotational support for the rotation of the inner sleeve 70; the inner sleeve 70 is also arranged around the tail end 222 of the endoscope 22 so that the tail end 222 of the endoscope 22 passes through the inner sleeve 70 into the outer sleeve 60. Figure 6 and Figure 7 As an example, the head end portion 71 of the inner sleeve 70 axially extends a limit ring 72 with open ends, the limit ring 72 is arranged around the tail end 222 of the endoscope 22, and the tail end 32 of the FPC 30 is also located in the gap 723 between the head end 721 and the tail end 722 of the limit ring 72; with the help of the limit ring 72, it is used to circumferentially block and limit the expansion and contraction of the FPC 30, thereby further improving the expansion and contraction directional effect of the FPC 30; in addition, a snap-fit protrusion 73 radially protrudes outward from the limit ring 72, and the snap-fit protrusion 73 is arranged relative to the gap 723, for example but not limited to some in the radial direction of the inner sleeve 70. The engaging protrusion 73 and the gap 723 are arranged opposite to each other; in addition, a circular protrusion 82 is axially extended from the tail end 81 of the rotating sleeve 80, and the circular protrusion 82 is provided with an engaging groove 83 engaged with the engaging protrusion 73 and a matching groove 84 cooperating with the gap 723. With the help of the cooperation between the engaging groove 83 and the engaging protrusion 73, the assembly and disassembly operations between the rotating sleeve 80 and the inner sleeve 70 are more convenient; in addition, with the help of the cooperation between the matching groove 84 and the gap 723, it is easier to pass through the tail end 32 of the FPC 30 after passing through the tail end 222 of the endoscope 22, pass through the cooperation between the inner sleeve 70 and the rotating sleeve 80, and then be wrapped around the outer sleeve 60.

[0033] like Figure 5 As shown, as an example, the outer diameter of the tail end portion 81 of the rotating sleeve 80 is larger than the outer diameter of the outer sleeve 60. This design makes the tail end portion 81 of the rotating sleeve 80 protrude radially from the outer sleeve 60, so that a step is formed between the tail end portion 81 and the outer sleeve 60, thereby playing a role in unidirectional axial limitation of the position 321 of the FPC 30 wound around the outer sleeve 60. Specifically, combined with Figure 6 and Figure 7As an example, a limiting protrusion 61 is radially extended outward from the outer sleeve 60, and the position 321 of the FPC 30 wound on the outer sleeve 60 is limited between the limiting protrusion 61 and the tail end 81 of the rotating sleeve 80. This design can achieve a two-way axial limiting effect on the position 321 of the FPC 30 wound on the outer sleeve 60. In addition, combined with Figure 6 and Figure 8 As an example, the tail end 222 of the endoscope 22 is provided with a lateral channel 223 adjacent to the outer sleeve shaft 60, and the tail end 32 of the FPC 30 passes through the tail end 222 of the endoscope 22 from the lateral channel 223. Figure 6 and Figure 8 Such a design facilitates the operation of inserting external instruments and tools (such as but not limited to forceps) into the endoscope 22 from the tail end of the endoscope 22, thereby effectively preventing interference between the FPC30 and the instruments and tools.

[0034] Combine Figure 2 and Figure 4 As an example, the handle 10 is provided with a first support block 11 and a second support block 12 that support the rotation of the rotating sleeve 80 from opposite radial sides thereof. The first support block 11 has an arcuate support surface 111 for supporting the rotating sleeve 80, and the second support block 12 has an arcuate support surface 121 for supporting the rotating sleeve 80. The rotating sleeve 80 is limited between the arcuate support surface 111 of the first support block 11 and the arcuate support surface 121 of the second support block 12. Optionally, Figure 4 As an example, the arc support surface 111 of the first support block 11 and the arc support surface 121 of the second support block are spaced apart by a certain distance in the radial direction of the rotating sleeve 80. Figure 4 As shown, this design avoids the defects of difficulty in processing and assembly caused by the arc support surface 111 of the first support block 11 and the arc support surface 121 of the second support block 12 being combined into a full circle.

[0035] Compared with the prior art, with the help of an outer sleeve 60 assembled in the handle 10, the tail end 32 of the FPC 30 is wrapped around the outer sleeve 60 and electrically connected to the PCB board 40. In this way, the FPC 30 can be loosened or tightened during the rotation of the insertion part 20 to achieve the telescopic orientation of the FPC 30, preventing the FPC 30 from being uncontrollable during the rotation of the insertion part 20, thereby avoiding the FPC 30 from being bent and damaged or interfering with other electrical components.

[0036] It should be noted that, since the endoscope 22, the tip 21, the handle 10, the PCB board 40 and the lens 50 are well known in the art, they are not described in detail here.

[0037] 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, comprising a handle, an insertion portion, a long FPC and a PCB board assembled in the handle, wherein the insertion portion comprises a tip and an endoscope, the head end of the endoscope is assembled and connected to the tip, the tip is equipped with a lens, and the tail end of the endoscope is assembled to the handle, characterized in that: The hysteroscope also includes an outer sleeve assembled in the handle, and the tail end of the endoscope also extends into the outer sleeve; the FPC is located in the endoscope, and the head end of the FPC passes through the head end of the endoscope and is electrically connected to the lens, and the tail end of the FPC passes through the tail end of the endoscope, and the tail end of the FPC is also wrapped around the outer sleeve and electrically connected to the PCB board.

2. The hysteroscope according to claim 1, characterized in that: The tail end of the FPC is wound around the outer sleeve for at least one circle; the tail end of the endoscope is provided with a lateral channel adjacent to the outer sleeve, and the tail end of the FPC passes through the tail end of the endoscope from the lateral channel.

3. The hysteroscope according to claim 2, characterized in that: The endoscope further comprises an inner sleeve which is rotatably mounted in the outer sleeve and is arranged around the rear end of the endoscope.

4. The hysteroscope according to claim 3, characterized in that: A limiting ring with open ends is axially extended from the head end of the inner sleeve. The limiting ring is arranged around the tail end of the endoscope, and the tail end of the FPC is also located in the gap between the head end and the tail end of the limiting ring.

5. The hysteroscope according to claim 4, characterized in that: It also includes a rotating sleeve that is externally mounted on the tail end of the endoscope, the rotating sleeve is located between the inner sleeve and the tip in the length direction of the endoscope, the rotating sleeve is fixedly connected to the tail end of the endoscope, and the rotating sleeve is also snap-connected to the inner sleeve.

6. The hysteroscope according to claim 5, characterized in that: A locking protrusion protrudes radially outward from the limiting ring, and the locking protrusion is arranged opposite to the gap. A circular convex ring extends axially from the tail end of the rotating sleeve, and the circular convex ring is provided with a locking groove that engages with the locking protrusion and a matching groove that cooperates with the gap.

7. The hysteroscope according to claim 5, characterized in that: The outer diameter of the tail end of the rotating sleeve is larger than the outer diameter of the outer sleeve.

8. The hysteroscope according to claim 7, characterized in that: A limiting protrusion extends radially outward from the outer sleeve, and the position of the FPC wound around the outer sleeve is limited between the limiting protrusion and the tail end of the rotating sleeve.

9. The hysteroscope according to claim 5, characterized in that: The handle is provided with a first support block and a second support block which jointly support the rotation of the rotating sleeve from radially opposite sides of the rotating sleeve. The first support block and the second support block each have an arc support surface for supporting the rotating sleeve, and the rotating sleeve is limited to be located between the arc support surfaces of the first support block and the second support block.

10. The hysteroscope according to claim 9, characterized in that: The arc support surfaces of the first support block and the second support block are spaced apart by a certain distance in the radial direction of the rotating sleeve.

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