An endoscope and a forceps channel assembly thereof

Abstract

The utility model discloses an endoscope and clamp channel assembly thereof, the endoscope includes operating part and the insertion part of relatively operating part rotation, and the clamp channel assembly includes the clamp channel pipe and the clamp channel intercommunicating part for fixing in operating part, and the proximal end of clamp channel pipe is rotatably connected in the clamp channel intercommunicating part, and the distal end of clamp channel pipe is used for fixed connection with the distal end of insertion part, thereby, when insertion part rotates relative to operating part, the rotation of clamp channel pipe can follow insertion part and rotate relative to clamp channel intercommunicating part, therefore can avoid the knot of clamp channel pipe torsion, and then avoid the phenomenon of breakage and air leakage, so can effectively improve its service life.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an endoscope and its clamping channel assembly. Background Technology

[0002] An endoscope is a medical device that can be inserted into the body for examination. It typically includes an operating part and an insertion part. In order to achieve multi-angle observation, existing endoscopes can rotate the insertion part relative to the operating part.

[0003] However, in practical applications, for endoscopes with rotatable insertion sections, the forceps tube is more prone to damage and air leakage, resulting in a shorter service life.

[0004] Therefore, how to improve the service life of the forceps cannula of an endoscope with a rotatable insertion section is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an endoscope and its clamping channel assembly, which can effectively improve the service life of the clamping channel of an endoscope with a rotatable insertion part.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A clamping channel assembly for use in an endoscope, the endoscope including an operating section and an insertion section, the proximal end of the insertion section being connected to the operating section, the insertion section being rotatable relative to the operating section about an axis of the insertion section, the clamping channel assembly including:

[0008] A clamping connector is used for fixed installation to the interior of the operating part;

[0009] as well as,

[0010] A clamp tube is used to pass through the insertion part, and the proximal end of the clamp tube is rotatably connected to the clamp tube connector, and the distal end of the clamp tube is used to be fixedly connected to the distal end of the insertion part.

[0011] In some technical solutions, a rotary connector is provided between one end of the clamp channel tube and one end of the clamp channel connecting member, and the rotary connector is provided with a connecting channel for connecting the clamp channel connecting member and the clamp channel tube.

[0012] In some technical solutions, the rotary connector includes a bearing, the outer ring of which is connected to the clamp channel connector, and the inner ring of which is connected to the clamp channel tube.

[0013] In some technical solutions, the rotary connector further includes a connecting seat, one end of which is fixedly connected to the clamp channel connecting member, and the outer ring of the bearing is fixed to the other end of the connecting seat.

[0014] In some technical solutions, the other end of the connecting seat is provided with a groove, and the bearing is housed in the groove; the rotating connector also includes an end cap, which at least partially blocks the opening of the groove to axially limit the bearing.

[0015] In some technical solutions, the rotary connector further includes a clamping channel connecting tube, one end of which is threaded to the inner circumferential surface of the bearing inner ring, and the other end is connected to the clamping channel tube.

[0016] In some technical solutions, a limiting protrusion is provided on the outer circumferential surface of the clamping channel connecting pipe. The first end of the clamping channel connecting pipe located on one side of the limiting protrusion is threadedly connected to the inner ring of the bearing, and the second end located on the other side of the limiting protrusion is connected to the clamping channel pipe.

[0017] In some technical solutions, the outer diameter of the second end gradually decreases along the axial direction away from the first end, and the proximal end of the clamp tube is provided with a clamp connector, which is sleeved on the second end.

[0018] In some technical solutions, the rotary connector further includes a clamping outer ring, which is sleeved on the outside of the clamping connector head.

[0019] An endoscope includes an operating section and an insertion section, the proximal end of the insertion section being connected to the operating section, the insertion section being rotatable relative to the operating section about an axis of the insertion section, and the endoscope further including a forceps assembly as described in any of the preceding claims.

[0020] In some technical solutions, the clamp tube is aligned with the clamp communication member in a direction parallel to the axis of the insertion portion, so that the clamp tube can rotate relative to the clamp communication member about a direction parallel to the axis of the insertion portion.

[0021] Compared with existing technologies, the above technical solution has at least the following advantages:

[0022] The present invention provides a clamping tube assembly, comprising a clamping tube connector and a clamping tube. The clamping tube connector is fixed inside the operating part. The proximal end of the clamping tube is rotatably connected to the clamping tube connector, and the distal end of the clamping tube is fixedly connected to the distal end of the insertion part. Thus, when the insertion part rotates relative to the operating part, the clamping tube can rotate relative to the clamping tube connector following the rotation of the insertion part. Therefore, the clamping tube can be prevented from twisting and knotting, thereby avoiding damage and air leakage, and thus effectively improving the service life of the clamping tube.

[0023] The endoscope provided by this utility model has corresponding advantages because it includes the above-mentioned clamping channel assembly. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 An exploded view of a clamping assembly provided for a specific embodiment of this utility model;

[0026] Figure 2 for Figure 1 A partial cross-sectional view of the clamping assembly in its assembled state;

[0027] Figure 3 This is a schematic diagram of the structure of an endoscope provided for a specific embodiment of the present invention.

[0028] The attached figures are labeled as follows:

[0029] 10-Operating Section;

[0030] 20 - Insertion part, 201 - Bending part;

[0031] 30 - Clamping channel connector; 31 - Clamping channel post;

[0032] 40 - Pliers tube, 41 - Pliers connector;

[0033] 50-Rotary connector, 501-Communication channel, 51-Bearing, 511-Bearing outer ring, 512-Roller, 513-Bearing inner ring, 52-Connecting seat, 521-Groove, 522-End cap, 53-Guitary connecting tube, 531-Limiting protrusion, 532-First end, 533-Second end, 54-Guitary fixing outer ring;

[0034] 60 - Rotating part;

[0035] 100 - Light guide section, 101 - Flexible light guide tube. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please refer to Figures 1 to 3 This utility model provides a clamping channel assembly for use in an endoscope. The endoscope includes an operating part 10 and an insertion part 20. The proximal end of the insertion part 20 is connected to the operating part 10, and the insertion part 20 is rotatable relative to the operating part 10 about its axis. The clamping channel assembly includes a clamping channel connector 30 and a clamping channel tube 40. The clamping channel connector 30 is fixedly installed inside the operating part 10 and communicates with a clamping channel post 31 disposed on the operating part 10. The clamping channel post 31 has a clamping channel opening communicating with the outside, so that the interior of the clamping channel connector 30 communicates with the clamping channel opening and the clamping channel tube 40. The clamping channel tube 40 is inserted into the interior of the insertion part 20. The proximal end of the clamping channel tube 40 is rotatably connected to the clamping channel connector 30, and the distal end of the clamping channel tube 40 is fixedly connected to the distal end of the insertion part 20. The clamp tube 40 is usually a thin-walled part, with a wall thickness of only about 0.2 mm. Therefore, its torsional resistance is very poor. When the insertion part 20 is rotated for a long time, the clamp tube 40 often suffers damage and air leakage due to torsional fatigue, thus reducing the service life of the endoscope. However, the clamp tube assembly provided in this application can rotate relative to the clamp tube connecting member 30. So when the insertion part 20 rotates relative to the operating part 10, the clamp tube 40 can rotate with the rotation of the insertion part 20 and relative to the clamp tube connecting member 30. Therefore, the clamp tube 40 can be prevented from twisting and knotting, thereby avoiding damage and air leakage, and thus effectively improving its service life.

[0038] In some embodiments, the proximal end of the clamp channel tube 40 can be directly rotatably connected to the clamp channel connecting member 30, or indirectly rotatably connected. For example, a rotating connector 50 is provided between the proximal end of the clamp channel tube 40 and the clamp channel connecting member 30. Figure 2 As shown, the rotary connector 50 has a connecting channel 501 for connecting the clamp channel connector 30 and the clamp channel tube 40. The rotary connector 50 can reduce wear between the clamp channel tube 40 and the clamp channel connector 30 due to direct contact, thus improving their service life. When the rotary connector 50 wears out, it can be replaced.

[0039] In some embodiments, such as Figure 1 and Figure 2 As shown, the rotating connector 50 includes a bearing 51, which includes an outer bearing ring 511, a roller 512, and an inner bearing ring 513. The outer bearing ring 511 is connected to the clamp channel connector 30, and the inner bearing ring 513 is connected to the clamp channel tube 40. When the insertion part 20 rotates, the distal end of the insertion part 20 will drive the distal end of the clamp channel tube 40 to rotate. At this time, the inner bearing ring 513 will rotate relative to the outer bearing ring 511, that is, the clamp channel tube 40 will rotate relative to the clamp channel connector 30. Therefore, the problem of torsion of the clamp channel tube 40 can be avoided. Moreover, the rotating connector 50 of the clamp channel assembly provided by this utility model has a simple structure, good stability and high reliability, and has the advantages of easy installation and low cost.

[0040] In some embodiments, such as Figure 1 and Figure 2 As shown, to facilitate the connection between the rotary connector 50 and the clamping passage connector 30, the rotary connector 50 also includes a connecting seat 52. One end of the connecting seat 52 is fixedly connected to the clamping passage connector 30, for example, the connecting seat 52 and the clamping passage connector 30 can be welded together. The outer ring of the bearing 511 is fixed to the other end of the connecting seat 52. To facilitate the installation of the outer ring of the bearing 511, the other end of the connecting seat 52 is provided with a groove 521, in which the bearing 51 is accommodated. The rotary connector 50 also includes an end cap 522, which at least partially blocks the opening of the groove 521 to axially limit the bearing 51. The end cap 522 can be fixed to the end of the connecting seat 52 with screws.

[0041] In some embodiments, such as Figure 1 and Figure 2 As shown, to facilitate the connection between the guide tube 40 and the bearing inner ring 513, the rotary connector 50 also includes a guide tube 53. One end of the guide tube 53 is threaded to the inner circumferential surface of the bearing inner ring 513, i.e., the inner circumferential surface of the bearing inner ring 513 is provided with an internal thread, and the outer circumference of one end of the guide tube 53 is provided with an external thread that mates with the internal thread. The two can be threadedly connected by external tooling. The other end of the guide tube 53 is connected to the guide tube 40. For example, the guide tube 40 can be bonded to the other end of the guide tube 53.

[0042] In some embodiments, a limiting protrusion 531 is provided on the outer peripheral surface of the clamping connection tube 53, for example... Figure 1As shown, an annular limiting protrusion 531 can be provided on the outer circumferential surface of the clamping connection tube 53. The first end 532 on one side of the limiting protrusion 531 on the clamping connection tube 53 is threadedly connected to the bearing inner ring 513, and the second end 533 on the other side of the limiting protrusion 531 is connected to the clamping tube 40. The limiting protrusion 531 can limit the axial length of the clamping connection tube 53 connected to the bearing inner ring 513.

[0043] In some embodiments, the outer diameter of the second end 533 gradually decreases along the axial direction away from the first end 532, and a clamping connector 41 is provided at the proximal end of the clamping tube 40, which is sleeved on the second end 533. Exemplarily, the surfaces that mate with each other between the second end 533 and the clamping connector 41 are conical surfaces. The mating relationship of the conical surfaces can reduce the difficulty of mating the two, thereby helping to ensure the tightness of the connection between the two.

[0044] Furthermore, to improve the connection stability between the clamp channel tube 40 and the clamp channel connecting tube 53, the rotary connector 50 also includes a clamp channel fixing outer ring 54, which is sleeved on the outside of the clamp channel connector 41, for example... Figure 1 and Figure 2 As shown, during installation, the clamp fixing outer ring 54 can be fitted onto the clamp tube 40. After the clamp connector 41 is fitted onto the second end 533 of the clamp connecting tube 53, the clamp fixing outer ring 54 is moved onto the clamp connector 41. At this time, the clamp connector 41 can be pressed against the outer circumferential surface of the second end 533 of the clamp connecting tube 53. Alternatively, the clamp fixing outer ring 54 can be fixed to the clamp connector 41 by adhesive bonding.

[0045] This invention also provides an endoscope, including the forceps assembly provided in any of the above embodiments, and further as... Figure 3 As shown, the endoscope includes an operating part 10 and an insertion part 20. The proximal end of the insertion part 20 is connected to the operating part 10. The insertion part 20 can rotate relative to the operating part 10 about the axis of the insertion part 20. Regarding the rotational connection relationship between the operating part 10 and the insertion part 20, reference can be made to the prior art. This embodiment does not make specific limitations in this regard.

[0046] For example, the endoscope also includes a light guide 100, a light guide hose 101, and a rotating part 60. The light guide 100 is connected to the operation part 10 via the light guide hose 101. The operation part 10 includes a bending lever, a clamping port, a suction valve, and various function buttons. The operation part 10 and the insertion part 20 are connected via the rotating part 60. A bending part 201 is provided at one end (i.e., the distal end) of the insertion part 20 away from the operation part 10. The bending part 201 can be bent relative to the axis of the insertion part 20 under the control of the bending lever to increase the viewing angle range of the endoscope.

[0047] In some embodiments, the clamp tube 40 is aligned with the clamp channel connector 30 in a direction parallel to the axis of the insertion portion 20, allowing the clamp tube 40 to rotate relative to the clamp channel connector 30 about a direction parallel to the axis of the insertion portion 20. This makes the rotation axis of the clamp tube 40 parallel to the rotation axis of the insertion portion 20, thereby improving the synchronization of the rotation of the clamp tube 40 and the insertion portion 20 and further reducing the possibility of the clamp tube 40 twisting.

[0048] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0050] The present invention provides a detailed description of an endoscope and its clamping channel assembly. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A clamping device for use in an endoscope, the endoscope comprising an operating part (10) and an insertion part (20), the proximal end of the insertion part (20) being connected to the operating part (10), the insertion part (20) being rotatable relative to the operating part (10) about an axis of the insertion part (20), characterized in that, The clamping channel assembly includes: The clamping connector (30) is used for fixed installation inside the operating part (10); as well as, A clamp tube (40) is used to pass through the insertion part (20), and the proximal end of the clamp tube (40) is rotatably connected to the clamp tube connector (30), and the distal end of the clamp tube (40) is used to be fixedly connected to the distal end of the insertion part (20).

2. The clamping assembly according to claim 1, characterized in that, A rotating connector (50) is provided between the proximal end of the clamp tube (40) and the clamp connecting member (30), and the rotating connector (50) is provided with a connecting channel (501) for connecting the clamp connecting member (30) and the clamp tube (40).

3. The clamping assembly according to claim 2, characterized in that, The rotating connector (50) includes a bearing (51), the outer ring (511) of the bearing (51) is connected to the clamp channel connector (30), and the inner ring (513) of the bearing (51) is connected to the clamp channel tube (40).

4. The clamping assembly according to claim 3, characterized in that, The rotary connector (50) also includes a connecting seat (52), one end of which is fixedly connected to the clamp channel connector (30), and the bearing outer ring (511) is fixed to the other end of the connecting seat (52).

5. The clamping assembly according to claim 4, characterized in that, The other end of the connecting seat (52) is provided with a groove (521), and the bearing (51) is housed in the groove (521); the rotating connector (50) also includes an end cap (522), which at least partially blocks the opening of the groove (521) to axially limit the bearing (51).

6. The clamping assembly according to claim 4, characterized in that, The rotary connector (50) also includes a clamping channel connecting tube (53), one end of which is threaded to the inner circumferential surface of the bearing inner ring (513), and the other end is connected to the clamping channel tube (40).

7. The clamping assembly according to claim 6, characterized in that, The outer circumferential surface of the clamping channel connecting pipe (53) is provided with a limiting protrusion (531). The first end (532) of the clamping channel connecting pipe (53) located on one side of the limiting protrusion (531) is threadedly connected to the inner ring (513) of the bearing, and the second end (533) located on the other side of the limiting protrusion (531) is connected to the clamping channel pipe (40).

8. The clamping assembly according to claim 7, characterized in that, The outer diameter of the second end (533) gradually decreases along the axial direction away from the first end (532), and the proximal end of the clamp tube (40) is provided with a clamp connector (41), which is sleeved on the second end (533).

9. The clamping assembly according to claim 8, characterized in that, The rotary connector (50) also includes a clamping outer ring (54), which is fitted over the outside of the clamping connector (41).

10. An endoscope comprising an operating part (10) and an insertion part (20), the proximal end of the insertion part (20) being connected to the operating part (10), the insertion part (20) being rotatable relative to the operating part (10) about an axis of the insertion part (20), characterized in that, The endoscope further includes the clamping channel assembly as described in any one of claims 1 to 9.

11. The endoscope according to claim 10, characterized in that, The clamp tube (40) is aligned with the clamp communication member (30) in a direction parallel to the axis of the insertion part (20) so that the clamp tube (40) can rotate relative to the clamp communication member (30) about a direction parallel to the axis of the insertion part (20).

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