Insertion part rotating structure and endoscope with same

Abstract

The utility model relates to the technical field of endoscopes, in particular to an insertion part rotating structure and an endoscope with the same, and the insertion part rotating structure comprises an insertion part connector which is hollow; the pincer channel connector is used for communicating a pincer channel pipe with a pincer channel communicating valve, and the pincer channel connector and the center of the insertion part connector are coaxially arranged; the transmission part is used for connecting the insertion part connector with the forceps channel connector; wherein the insertion part connector is rotationally connected to the operation part; and / or the clamp channel connector is rotationally connected to the clamp channel communicating valve. According to the invention, the convenience for an operator to control the orientation of the insertion part in the actual use process can be improved, and the problem of winding of the clamp channel pipe in the rotation process of the insertion part is solved.

Description

Technical Field

[0001] The present application relates to the technical field of endoscopes, and particularly to a rotating structure for an insertion portion and an endoscope having the same structure. Background Art

[0002] An endoscope is a medical device used for observing the inside of a body cavity and taking tissue samples. The endoscope mainly includes an operation portion and a slender insertion portion. Among them, the insertion portion is connected to the operation portion, and the insertion portion can be controlled by the operation portion to deflect relative to the axial length direction so as to obtain a larger observation field of view. At the same time, a forceps channel tube extending along its own length direction is also provided inside the insertion portion. Correspondingly, the operation portion is provided with a forceps channel communication valve that is docked with the forceps channel tube and can communicate with the outside, so that the operator can insert a supporting medical device into a specified position through the forceps channel communication valve and the forceps channel tube when needed.

[0003] The operation portion and the insertion portion of the endoscope are usually fixedly connected. During actual use by the operator, in order to align the head end of the insertion portion with a specific area, in addition to controlling the insertion portion to deflect through the operation portion, sometimes the operator also needs to further drive the head end of the insertion portion to rotate by swinging the hand and the body left and right, which is not convenient to use. Summary of the Utility Model

[0004] In a first aspect, in order to improve the convenience of the operator in controlling the orientation of the insertion portion during actual use, the present application provides a rotating structure for the insertion portion.

[0005] The rotating structure for the insertion portion provided by the present application adopts the following technical solutions:

[0006] A rotating structure for an insertion portion, comprising:

[0007] An insertion portion connection head, which is hollow inside;

[0008] A forceps channel connection head for connecting the forceps channel tube and the forceps channel communication valve, and the forceps channel connection head is coaxially arranged with the center of the insertion portion connection head;

[0009] A transmission member for connecting the insertion portion connection head and the forceps channel connection head;

[0010] Wherein, the insertion portion connection head is rotatably connected to the operation portion; and / or the forceps channel connection head is rotatably connected to the forceps channel communication valve.

[0011] By adopting the above technical solution, the insertion part connector and the forceps channel connector are fixedly connected by using the design of the transmission part. The insertion part connector is used for the fixed connection of the insertion part, and the forceps channel connector is used for the fixed connection to the forceps channel tube. Therefore, by making at least one of the insertion part connector and the forceps channel connector rotatably connected to the operation part, the rotatable connection between the insertion part and the operation part can be realized, thereby improving the convenience for the operator to control the orientation of the insertion part during actual use. At the same time, in this solution, through the setting of the forceps channel connector, the forceps channel tube can rotate with the rotation of the insertion part, so that the forceps channel tube will not be entangled during the rotation of the insertion part, which can further improve the convenience for the operator to control the orientation of the insertion part.

[0012] Further, a first rotation limiting structure is cooperatively provided between the transmission part and the insertion part connector, and / or a second rotation limiting structure is cooperatively provided between the transmission part and the forceps channel connector.

[0013] By adopting the above technical solution, the setting of the first rotation limiting structure and the second rotation limiting structure facilitates the stable transmission of the rotation power between the insertion part connector and the forceps channel connector.

[0014] Further, a clamping edge is provided at the end of the transmission part, and a clamping groove that is clamped and cooperated with the clamping edge is formed on the side wall of the forceps channel connector.

[0015] Further, an end limiting member is detachably connected to one end of the forceps channel connector close to the insertion part connector, and the end of the end limiting member away from the insertion part connector constitutes the wall of the clamping groove.

[0016] Further, the end limiting member is a nut limiting member threadedly connected to the forceps channel connector, and an avoidance space for the nut limiting member is formed on the transmission part.

[0017] Further, the insertion part rotation structure further includes a rotating sleeve, and the rotating sleeve is fixedly sleeved outside the insertion part connector.

[0018] By adopting the above technical solution, the setting of the rotating sleeve facilitates the operator to perform the rotation operation of the insertion part based on actual needs.

[0019] In a second aspect, in order to improve the convenience for the operator to control the orientation of the insertion part during actual use, the present application provides an endoscope.

[0020] The endoscope provided by the present application adopts the following technical solution:

[0021] An endoscope includes an operation part, an insertion part, and the insertion part rotation structure as described above. The operation part is provided with a channel communication valve connected to the channel connection head. The insertion part is fixedly connected to the insertion part connection head, and a channel tube is arranged inside the insertion part. The channel connection head is fixedly connected to the channel tube.

[0022] By adopting the above technical solution, the convenience for the operator to control the orientation of the insertion part during actual use can be improved.

[0023] Further, the channel communication valve is provided with a docking hole for the end of the channel connection head to be inserted. A connection nut is rotatably arranged on the channel connection head, and the connection nut is threadedly connected to the channel communication valve.

[0024] By adopting the above technical solution, the setting of the docking hole facilitates the alignment of the corresponding channels between the channel connection head and the channel connection valve, and then the rotation between the channel connection head and the channel communication valve can be conveniently realized by the connection nut.

[0025] Further, the operation part is fixedly provided with a connection sleeve, and at least part of the insertion part connection head is rotatably sleeved inside the connection sleeve.

[0026] Further, the endoscope further includes a silica gel protective sleeve. The silica gel protective sleeve covers the joint of the insertion part and the insertion part connection head, and the silica gel protective sleeve and the insertion part connection head are provided with an anti-rotation structure.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Improve the convenience for the operator to control the orientation of the insertion part during actual use, so that the channel tube can rotate with the rotation of the insertion part, so that the channel tube will not be wound during the rotation of the insertion part;

[0029] 2. Maintain good convenience and stability during the rotation of the insertion part. Description of the Drawings

[0030] Figure 1 is an exploded schematic view of the endoscope in the embodiment of the present application;

[0031] Figure 2 is a schematic view of the channel communication valve, the insertion part rotation structure and the insertion part in the embodiment of the present application;

[0032] Figure 3 is an exploded schematic view of the channel communication valve, the insertion part rotation structure and the insertion part in the embodiment of the present application;

[0033] Figure 4 is Figure 2 the enlarged structural schematic view of part A in

[0034] Figure 5 is Figure 1 The enlarged structural schematic diagram of part B in it;

[0035] Figure 6 is the structural schematic diagram of the rotating sleeve in the embodiment of the present application;

[0036] Figure 7 is the schematic diagram of the silicone rubber protective sleeve and the anti-rotation ring in the embodiment of the present application.

[0037] Explanation of the reference numerals: 1. Insertion part; 11. Forceps channel tube; 111. Tapered reaming section; 2. Operation part; 21. Forceps channel connecting valve; 211. Connecting convex column; 22. Connecting sleeve; 23. Outer ring edge; 3. Insertion part connecting head; 4. Forceps channel connecting head; 41. Connecting nut; 411. Limit ring; 42. Nut limiting part; 5. Transmission part; 51. Anti-rotation screw; 52. Abutting anti-rotation surface; 53. Clamping edge; 6. Rotating sleeve; 61. Outer ring sleeve; 62. Inner ring sleeve; 7. Silicone rubber protective sleeve; 71. Positioning convex block; 8. Anti-rotation ring; 81. Positioning groove. Detailed implementation manners

[0038] The following further describes the present application in detail with reference to the drawings.

[0039] An endoscope is a medical device used for observing the inside of a body cavity and taking tissue samples. Currently, endoscopes mainly include an operation part 2 and a slender insertion part 1. Among them, the insertion part 1 is connected to the operation part 2, and the insertion part 1 can be controlled by the operation part 2 to deflect at an angle relative to the axial length, so as to obtain a larger observation field of view. At the same time, the insertion part 1 also includes a forceps channel tube 11 extending along its own length direction. Correspondingly, the operation part 2 is provided with a forceps channel connecting valve 21 that is docked with the forceps channel tube 11 and can be connected to the outside, so that the operator can insert a matching medical device into a specified position through the forceps channel connecting valve 21 and the forceps channel tube 11 when needed.

[0040] The embodiment of the present application discloses an endoscope with an insertion part rotation structure.

[0041] Refer to Figure 1 and Figure 2 , the endoscope with an insertion part rotation structure includes an operation part 2, an insertion part 1 and an insertion part rotation structure, and the insertion part 1 is rotatably connected to the operation part 2 through the insertion part rotation structure. In this embodiment, the insertion part rotation structure includes an insertion part connecting head 3, a forceps channel connecting head 4 and a transmission part 5.

[0042] Combined with Figure 3, the insertion part connector 3 is a hollow columnar structure. One end of the insertion part connector 3 is fixedly connected to the insertion part 1, and the forceps channel tube 11 in the insertion part 1 can pass through the inner cavity of the insertion part connector 3. It should be noted that the insertion part 1 and the insertion part connector 3 can be fixed to each other by screwing, tight fitting and clamping, glue bonding, welding or fusion welding.

[0043] At the same time, the forceps channel connector 4 is coaxially arranged with the center of the insertion part connector 3 and is used to connect the forceps channel tube 11 and the forceps channel connecting valve 21. It can be understood that the connection between the forceps channel connector 4 and the forceps channel tube 11 can be achieved by one of screwing, tight fitting and clamping, glue bonding or a combination of two or more methods. The transmission part 5 is used to fixedly connect the insertion part connector 3 and the forceps channel connector 4 so that the insertion part connector 3 can rotate synchronously with the forceps channel connector 4.

[0044] Correspondingly, at least one of the insertion part connector 3 and the forceps channel connector 4 is rotatably connected to the operation part 2, so as to achieve the purpose of rotatably connecting the insertion part 1 and the operation part 2. That is, in this solution, the insertion part connector 3 is rotatably connected to the operation part 2, and / or the forceps channel connector 4 is rotatably connected to the forceps channel connecting valve 21. When driving the insertion part 1 to rotate, due to the setting of the transmission part 5, the connecting part of the insertion part 1 and the forceps channel connecting part will rotate synchronously. It can be understood that taking the insertion part connector 3 rotatably connected to the operation part 2 as an example, the forceps channel connector 4 can be rotatably connected to the forceps channel connecting valve 21, or there is no actual rotational connection relationship between the two, but only a nested or penetrating positional relationship with the positions aligned.

[0045] With the above design, the transmission part 5 is used to fixedly connect the insertion part connector 3 and the forceps channel connector 4. The insertion part connector 3 is used for the insertion part 1 to be fixedly connected, and the forceps channel connector 4 is used to be fixedly connected to the forceps channel tube 11. Therefore, as long as at least one of the insertion part connector 3 and the forceps channel connector 4 forms a rotational connection with the operation part 2, the rotatable connection between the insertion part 1 and the operation part 2 can be realized, thereby improving the convenience for the operator to control the orientation of the insertion part 1 during actual use. At the same time, in this solution, through the setting of the forceps channel connector 4, the forceps channel tube 11 can rotate with the rotation of the insertion part 1, so that the forceps channel tube 11 will not be entangled during the rotation of the insertion part 1, and can further improve the convenience for the operator to control the orientation of the insertion part 1.

[0046] Refer to Figure 2 and Figure 3 , further, a first rotation limiting structure is cooperatively arranged between the transmission part 5 and the insertion part connector 3, and / or a second rotation limiting structure is cooperatively arranged between the transmission part 5 and the forceps channel connector 4. By setting the first rotation limiting structure and the second rotation limiting structure, it is convenient to stably transmit the rotational power between the insertion part connector 3 and the forceps channel connector 4.

[0047] In this solution, there are two transmission members 5, which are strip-shaped members extending along the axis direction of the insertion portion connector 3. Specifically, the two transmission members 5 are symmetrically arranged on both sides of the central axis of the connecting portion of the insertion portion 1, and the two transmission members 5 cooperate to present a state of holding the insertion portion connector 3 and the forceps channel connector 4 therein.

[0048] In some embodiments, the transmission member 5 and the insertion portion connector 3 are fixedly connected by a limiting rotation screw 51 and a limiting rotation screw hole to form a first limiting rotation structure. And / or, in some embodiments, a contact limiting rotation surface 52 is arranged between the transmission member 5 and the forceps channel connector 4 to form a second limiting rotation structure.

[0049] Furthermore, a clamping edge 53 is arranged at the end of the transmission member 5 close to the forceps channel connector 4. Correspondingly, a clamping groove that is clamped and matched with the clamping edge 53 is formed on the circumferential side wall of the forceps channel connector 4; by using the cooperation of the clamping edge 53 and the clamping groove, the relative fixation of the transmission member 5 and the forceps channel connector 4 in the axial length direction is realized, and then the relative fixation of the transmission frame and the forceps channel connector 4 in the circumferential direction is realized in cooperation with the second limiting rotation structure, so that the transmission member 5 can stably transmit power to the forceps channel connector 4.

[0050] Refer to Figure 3 and Figure 4 , in this embodiment, the end of the forceps channel connector 4 far from the transmission member 5 is used to dock with the forceps channel communication valve 21. Specifically, in some embodiments, a connecting convex column 211 is formed on the forceps channel communication valve 21 facing the forceps channel connector 4, and a docking hole for the end of the forceps channel connector 4 to insert is arranged in the connecting convex column 211. At the same time, a connecting nut 41 is rotatably sleeved on the end of the forceps channel connector 4. The connecting nut 41 is threadedly connected to the connecting convex column 211 of the forceps channel communication valve 21, and a limiting ring 411 with a reduced inner diameter is formed at one end of the connecting nut 41 far from the connecting convex column 211. The limiting ring 411 cooperates with the end of the forceps channel connector 4 to realize limiting and anti-disengagement, so as to realize the rotational connection between the forceps channel connector 4 and the forceps channel communication valve 21.

[0051] The arrangement of the docking hole facilitates the alignment of the corresponding channels between the forceps channel connector 4 and the forceps channel connection valve, and then the rotation between the forceps channel connector 4 and the forceps channel communication valve 21 is conveniently realized by the connecting nut 41; in addition, the end of the connecting nut 41 is also used to form a wall of a groove that cooperates with the clamping groove of the clamping edge 53 on the transmission member 5. It can be understood that, in order to maintain the sealing performance at the connection between the forceps channel connector 4 and the forceps channel communication valve 21, a sealing ring structure can also be arranged between the two.

[0052] Furthermore, one end of the forceps channel connector 4 close to the insertion part connector 3 is detachably connected with an end limiting part, and the end of the end limiting part far from the insertion part connector 3 constitutes the other wall of the clamping groove. Specifically, the end limiting part is a nut limiting part 42 threadedly connected to the forceps channel connector 4. Correspondingly, to facilitate the rotation of the nut limiting part 42 during the assembly process, an avoidance space for the nut limiting part 42 is formed between the two transmission parts 5.

[0053] Meanwhile, the end of the forceps channel connector 4 provided with the nut limiting part 42 is used for connecting with the forceps channel tube 11. And in some embodiments, the forceps channel connector 4 is fixedly connected with the forceps channel tube 11 through the nut limiting part 42. Specifically, a section of the forceps channel tube 11 exposed from the end of the insertion part 1 is inserted into the inner cavity of the insertion part connector 3, and a tapered reaming section 111 is formed at the end of the forceps channel tube 11. Correspondingly, the end of the forceps channel connector 4 is inserted into the tapered reaming section 111 of the forceps channel tube 11, and the two are fixedly connected by the screwing action of the nut limiting part 42. In some specific embodiments, the forceps channel tube 11 is made of Teflon material. In the connection structure of the forceps channel connector 4 and the forceps channel tube 11 using the nut limiting part 42, there is also a bushing between the forceps channel connector 4 and the tapered reaming section 111.

[0054] Refer to Figure 5 Referring to

[0055] Refer to Figure 1, Further, to facilitate the operator to manipulate the rotation of the insertion portion 1 relative to the operation portion 2, the insertion portion rotation structure further includes a rotating sleeve 6. The rotating sleeve 6 is fixedly sleeved on the outside of the insertion portion connector 3, and the outer wall of the rotating sleeve 6 is exposed for the operator to touch and hold. It should be noted that the rotating sleeve 6 fixedly sleeved around the insertion portion connector 3 as described above may be such that the inner wall of the rotating sleeve 6 contacts the outer wall of the insertion portion connector 3 and is relatively fixed by means such as screwing, clamping or bonding; or there may be at least one connecting ring additionally provided between the inner wall of the rotating sleeve 6 and the outer wall of the insertion portion connector 3. The outer wall of the connecting ring contacts the inner wall of the rotating sleeve 6 and is relatively fixed by means such as screwing, clamping or bonding, and the inner wall of the connecting ring contacts the outer wall of the insertion portion connector 3 and is relatively fixed by means such as screwing, clamping or bonding.

[0056] Referring to Figure 6 , Specifically in this embodiment, the rotating sleeve 6 includes an outer ring sleeve 61 on the outside and an inner ring sleeve 62 on the inside. Among them, the outer ring sleeve 61 is sleeved on the outside of the inner ring sleeve 62 and a sealing ring is provided between them. The outer ring sleeve 61 is for the operator to directly touch and manipulate, while the inner ring sleeve 62 is wrapped around the connecting sleeve 22 in a covering manner with a gap. At the same time, combined with Figure 5 , an outer ring edge 23 is formed at the place where the operation portion 2 extends out of the connecting sleeve 22. Correspondingly, the end of the outer ring sleeve 61 is wrapped around the outside of the outer ring edge 23 with a gap, and the end of the inner ring sleeve 62 passes through the inside of the outer ring edge 23 with a gap and a sealing ring is provided at the gap between the two. It should be noted that in order to achieve the sealing and waterproof performance of the structure, it is foreseeable to provide a sealing ring or other similar structures between different components not mentioned in this solution.

[0057] Referring to Figure 1 , Further, the endoscope further includes a silicone protective sleeve 7. The silicone protective sleeve 7 wraps the connection part between the insertion portion 1 and the insertion portion connector 3, and the silicone protective sleeve 7 and the insertion portion connector 3 are provided with an anti-rotation structure to maintain the synchronous rotation of the silicone protective sleeve 7 and the insertion portion connector 3 through the anti-rotation structure.

[0058] Referring to Figure 7 , Specifically in this embodiment, the anti-rotation structure is set as an anti-rotation ring 8. One end of the anti-rotation ring 8 is inserted into the sleeve opening of the silicone protective sleeve 7, and one of the anti-rotation ring 8 and the silicone protective sleeve 7 is provided with a positioning convex block 71, and the other is provided with a positioning groove 81. The positioning convex block 71 and the positioning groove 81 cooperate to achieve the relative fixation between the anti-rotation ring 8 and the silicone protective sleeve 7. At the same time, combined with Figure 6, the end edge of the anti-rotation ring 8 extends into the gap between the inner ring sleeve 62 and the outer ring sleeve 61 in the rotation sleeve 6 and forms a tight fit, bonding or threaded connection. Through the relative fixation between the anti-rotation ring 8 and the rotation sleeve 6, the relative fixation between the anti-rotation ring 8 and the insertion part connector 3 is realized, and finally the relative fixation between the silica gel protective sleeve 7 and the insertion part connector 3 is realized.

[0059] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An insertion part rotation structure, characterized in that, Comprising: An insertion part connector, which is hollow inside; A forceps channel connector for connecting a forceps channel tube to a forceps channel communicating valve, and the forceps channel connector is coaxially arranged with the insertion part connector at the center; A transmission member for connecting the insertion part connector and the forceps channel connector; Wherein, the insertion part connector is rotatably connected to the operation part; and / or the forceps channel connector is rotatably connected to the forceps channel communicating valve.

2. The insertion part rotation structure according to claim 1, wherein A first rotation limiting structure is cooperatively provided between the transmission member and the insertion part connector, and / or a second rotation limiting structure is cooperatively provided between the transmission member and the forceps channel connector.

3. The insertion part rotation structure according to claim 1, characterized in that, A clamping edge is provided at the end of the transmission member, and a clamping groove that is clamped and cooperated with the clamping edge is formed on the side wall of the forceps channel connector.

4. The insertion part rotation structure according to claim 3, wherein An end limiting member is detachably connected to one end of the forceps channel connector close to the insertion part connector, and the end of the end limiting member away from the insertion part connector constitutes the groove wall of the clamping groove.

5. The insertion part rotation structure according to claim 4, characterized in that The end limiting member is a nut limiting member threadedly connected to the forceps channel connector, and an avoidance space for the nut limiting member is formed on the transmission member.

6. The insertion part rotation structure according to claim 1, characterized in that, The insertion part rotation structure further includes a rotating sleeve, and the rotating sleeve is fixedly sleeved outside the insertion part connector.

7. An endoscope, characterized in that, Comprising an operation part, an insertion part and the insertion part rotation structure according to any one of claims 1 to 6, the operation part is provided with a forceps channel communicating valve connected to the forceps channel connector, the insertion part is fixedly connected to the insertion part connector, and a forceps channel tube is arranged inside the insertion part, and the forceps channel connector is fixedly connected to the forceps channel tube.

8. The endoscope according to claim 7, characterized in that, The forceps channel communicating valve is provided with a docking hole for the end of the forceps channel connector to be inserted, and a connecting nut is rotatably arranged on the forceps channel connector, and the connecting nut is threadedly connected to the forceps channel communicating valve.

9. The endoscope according to claim 7, characterized in that, The operation part is fixedly provided with a connecting sleeve, and at least part of the insertion part connector is rotatably sleeved inside the connecting sleeve.

10. The endoscope according to claim 7, characterized in that, The endoscope further includes a silica gel protective sleeve, the silica gel protective sleeve covers the joint of the insertion part and the insertion part connector, and an anti-rotation structure is provided between the silica gel protective sleeve and the insertion part connector.

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