Five-way mechanism and endoscope with same

Abstract

The five-way mechanism is applied to an insertion tube of the endoscope, the insertion tube is provided with a traction channel, a wire installation channel, an instrument channel and a steam channel in the axial direction, the side wall of the insertion tube is provided with a first opening and a second opening, and the five-way mechanism comprises a main tube, an auxiliary tube, an auxiliary tube and an auxiliary tube which are integrally formed. The first opening and the second opening are arranged in the main pipe in an isolated mode. The first branch pipe is arranged on the peripheral wall of the main pipe, and the first branch pipe is communicated with the instrument channel through the first opening; the second branch pipe is arranged on the peripheral wall of the main pipe, and the second branch pipe is communicated with the water-gas channel through the second opening; the third branch pipe is arranged on the peripheral wall of the first branch pipe, the third branch pipe communicates with the first branch pipe, and the third branch pipe is used for conveying fluid.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, in particular to a five-way mechanism and an endoscope having the same. Background Art

[0002] The endoscope includes an operating part and an insertion part. The operating part is generally the handle part, and the insertion part generally includes an insertion tube. The insertion tube integrates an instrument channel, a water and gas channel, a traction channel, a wire installation channel, an infusion channel, etc. The infusion channel and the water and gas channel require external hoses, so there will be a hose in the handle shell of the operating part.

[0003] However, as a handheld precision instrument, it is required to be as small and light as possible. However, the previous endoscopes had complex insertion tubes and had to connect multiple components, which made the installation of parts inside the endoscope more complicated and inconvenient for the production and assembly of endoscopes. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a five-way mechanism, which can reduce the assembly process of the endoscope, simplify the assembly, and make the endoscope compact and light.

[0005] The utility model also provides an endoscope with the five-way mechanism.

[0006] According to a first aspect of the utility model, a five-way mechanism is applied to an insertion tube of an endoscope, wherein the insertion tube is axially provided with an instrument channel and a water-gas channel, and the five-way mechanism comprises: a three-way tube arranged in a Y shape, wherein a third branch tube is provided on one branch of the three-way tube, and a second branch tube is provided on another branch of the three-way tube, the insertion tube is used to be inserted into the three-way tube, the second branch tube is connected to the water-gas channel, the third branch tube and one of the branches are connected to the instrument channel, and the instrument channel and the water-gas channel are arranged in isolation.

[0007] A five-way mechanism according to an embodiment of the utility model has at least the following beneficial effects: the five-way mechanism is set to partially integrate the insertion tube, hose and biopsy port components of the endoscope, and the five-way mechanism serves as an intermediate piece to ensure the connection between the hose and the insertion tube. Because it is installed as a whole, it can reduce the space occupied by messy hoses in the handle shell, so that the operating part can be designed towards miniaturization during design, making the product smaller. In addition, it can be more convenient when installing or assembling the endoscope; a multi-lumen tube is used as the insertion tube, the structural design is ingenious, and the space of the insertion tube is fully utilized.

[0008] According to some embodiments of the utility model, the insertion tube is also provided with a traction channel and a wire installation channel along the axial direction, and the side wall of the insertion tube is provided with a first opening and a second opening, and the three-way tube includes: a main tube, in which the first opening and the second opening are separated and arranged; a first branch tube, which is arranged on the peripheral wall of the main tube, the first branch tube is connected to the instrument channel through the first opening, the first branch tube divides the main tube into a plug-in section and a connection section, the insertion tube is inserted into the plug-in section, the second branch tube is arranged on the peripheral wall of the connection section, the second branch tube is connected to the water-gas channel through the second opening, the third branch tube is arranged on the peripheral wall of the first branch tube, the third branch tube is connected to the first branch tube, and the third branch tube is used to transport fluid. The first opening and the second opening realize channel independence in the main tube, so that the fluid medium in the corresponding hose can enter the insertion tube from the first opening or the second opening, the structural design is ingenious, and the space of the insertion tube is fully utilized.

[0009] According to some embodiments of the utility model, a first limit plate and a second limit plate are provided on the outer peripheral wall of the main pipe, and the first limit plate and the second limit plate define a limit slot, and the limit slot is used to clamp the hose on the third branch pipe, so that the hose on the third branch pipe can be installed in a standardized manner, avoiding the hose from being placed messily in the handle housing.

[0010] According to some embodiments of the utility model, the first limiting plate and the second limiting plate are both arranged in an arc shape, the first limiting plate and the second limiting plate are arranged concentrically, and the entry path of the hose on the third branch pipe is an arc shape and is not easily damaged.

[0011] According to some embodiments of the utility model, a first plug and a second plug are further included, and the traction channel, the wire installation channel, the instrument channel and the water vapor channel are all arranged to penetrate along the axial direction of the insertion tube. The first plug is fixed to the insertion end of the instrument channel, and the second plug is fixed to the insertion end of the water vapor channel. This makes the insertion tube easy to produce and the sealing operation of the first plug and the second plug is convenient.

[0012] According to some embodiments of the utility model, the first plug or the second plug includes a pin, a screw plug, a throat plug, a cover head, a sealing head and other parts with a sealing function.

[0013] According to some embodiments of the utility model, a first temperature sensor and / or a first pressure sensor may be provided on one end of the instrument channel close to the first plug, and a second temperature sensor and / or a second pressure sensor may be provided on one end of the water vapor channel close to the second plug.

[0014] According to some embodiments of the utility model, it also includes a connecting piece and a sealing piece, the two ends of the main pipe are respectively connected to the connecting pieces, the connecting piece is used to fix the insertion tube, a plurality of the sealing pieces are sleeved on the outer peripheral wall of the insertion tube, the outer peripheral wall of the insertion tube and the inner peripheral wall of the main pipe define a first cavity and a second cavity with the sealing piece, the first opening is connected to the first cavity, and the second opening is connected to the second cavity, and the sealing piece can not only enable the first opening and the second opening to be set independently, but also cooperate with the connecting piece to fix the insertion tube.

[0015] According to some embodiments of the utility model, a connecting pipe is further included, which is sleeved on the main pipe, and the connecting pipe is placed in the second cavity. A penetrating portion is provided on the peripheral wall of the connecting pipe, and a gap portion is provided between the connecting pipe and the main pipe and / or the insertion pipe. The penetrating portion is connected to the gap portion, and the second branch pipe is connected to the second opening through the penetrating portion.

[0016] According to some embodiments of the utility model, a plurality of the through-portions are provided, and the plurality of the through-portions are distributed at intervals around the peripheral wall of the connecting pipe.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a cross-sectional view of the five-way mechanism of the embodiment of the utility model after being installed in the handle housing;

[0020] Figure 2 for Figure 1 A schematic structural diagram of a cross-sectional view of a five-way mechanism is shown;

[0021] Figure 3 for Figure 2 An exploded view of a cross-sectional view of a five-way mechanism is shown;

[0022] Figure 4 for Figure 2 The structural schematic diagram of the five-way mechanism shown;

[0023] Figure 5 for Figure 2 A schematic structural diagram of an insertion tube of a five-way mechanism is shown.

[0024] Main pipe 100, plug section 100a, connection section 100b, first limit plate 110, second limit plate 120, limit slot 130;

[0025] A first branch pipe 200, a second branch pipe 300, and a third branch pipe 400;

[0026] Insertion tube 500, traction channel 510, wire installation channel 520;

[0027] Instrument channel 530, first plug 531;

[0028] Water and gas channel 540, second plug 541;

[0029] A first opening 550 and a second opening 560;

[0030] Connecting member 600a, sealing member 600b, first cavity 610, second cavity 620;

[0031] The connecting pipe 700, the through portion 710, and the gap portion 720;

[0032] Handle housing 800. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are 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 cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "more" is two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figures 1 to 5 A five-way mechanism is applied to an insertion tube 500 of an endoscope. The insertion tube 500 is axially provided with an instrument channel 530 and a water-gas channel 540. The five-way mechanism includes: a three-way tube, which is arranged in a Y shape. A third branch tube 400 is opened on one branch of the three-way tube, and a second branch tube 300 is opened on the other branch of the three-way tube. The insertion tube 500 is used to insert the three-way tube, the second branch tube 300 is connected to the water-gas channel 540, the third branch tube 400 and one of the branches are connected to the instrument channel 530, and the instrument channel 530 and the water-gas channel 540 are isolated from each other.

[0038] In some embodiments, the insertion tube 500 is further provided with a traction channel 510 and a wire installation channel 520 along the axial direction, and a first opening 550 and a second opening 560 are provided on the side wall of the insertion tube 500. The three-way tube includes: a main tube 100, and the first opening 550 and the second opening 560 are isolated and arranged in the main tube 100; a first branch tube 200, which is arranged on the peripheral wall of the main tube 100, and the first branch tube 200 is connected to the instrument channel 530 through the first opening 550. The first branch tube 200 divides the main tube 100 into an insertion section 100a and a connection section 100b. The insertion tube 500 is inserted into the insertion section 100a, and the second branch tube 300 is arranged on the peripheral wall of the connection section 100b. The second branch tube 300 is connected to the water vapor channel 540 through the second opening 560. The third branch tube 400 is arranged on the peripheral wall of the first branch tube 200, and the third branch tube 400 is connected to the first branch tube 200. The third branch tube 400 is used to transport fluid.

[0039] The five-way mechanism is provided to partially integrate the insertion tube 500, the hose and the biopsy port component of the endoscope. The five-way mechanism serves as an intermediate piece to ensure the connection between the hose and the insertion tube 500. Because it is installed as a whole, it can reduce the space occupied by the messy hoses in the handle housing 800, so that the operating part can be designed towards miniaturization, making the product smaller. In addition, it is more convenient when installing or assembling the endoscope. A multi-lumen tube is used as the insertion tube 500, and the first opening 550 and the second opening 560 realize channel independence in the main tube 100, so that the fluid medium in the corresponding hose can enter the insertion tube 500 from the first opening 550 or the second opening 560. The structural design is ingenious and makes full use of the space of the insertion tube 500.

[0040] It can be understood that the traction channels 510 on the insertion tube 500 may be 2, 4 or more. The so-called traction channel 510 is a channel for installing the traction wire. The steel wire is installed in the traction channel, which cleverly avoids entanglement and interference between the steel wires and between the steel wires and other channel tubes.

[0041] In some embodiments, a first limit plate 110 and a second limit plate 120 are provided on the outer peripheral wall of the main pipe 100. The first limit plate 110 and the second limit plate 120 define a limit slot 130. The limit slot 130 is used to clamp the hose on the third branch pipe 400 so that the hose on the third branch pipe 400 can be installed in a standardized manner, avoiding the hose from being placed in a messy manner in the handle housing 800.

[0042] In some embodiments, the first limiting plate 110 and the second limiting plate 120 are both arc-shaped, and the first limiting plate 110 and the second limiting plate 120 are cocentrically arranged. The entry path of the hose on the third branch pipe 400 is arc-shaped and is not easily damaged.

[0043] In some embodiments, a first plug 531 and a second plug 541 are further included. The traction channel 510, the wire installation channel 520, the instrument channel 530 and the water vapor channel 540 are all arranged to penetrate along the axial direction of the insertion tube 500. The first plug 531 is fixed to the insertion end of the instrument channel 530, and the second plug 541 is fixed to the insertion end of the water vapor channel 540. This makes the insertion tube 500 easy to produce, and the sealing operation of the first plug 531 and the second plug 541 is convenient.

[0044] In some embodiments, the first plug 531 or the second plug 541 includes a pin, a screw plug, a throat plug, a cap, a sealing head, or other parts having a sealing function.

[0045] In some embodiments, a first temperature sensor and / or a first pressure sensor is provided at one end of the instrument channel 530 close to the first plug 531, and a second temperature sensor and / or a second pressure sensor is provided at one end of the water vapor channel 540 close to the second plug 541. It can be understood that the sensors can detect the corresponding fluid values, which is convenient for monitoring and adjustment during use.

[0046] In some embodiments, a connector 600a and a seal 600b are also included. The two ends of the main pipe 100 are respectively connected with connectors 600a. The connector 600a is used to fix the insertion pipe 500. Three seals 600b are sleeved on the outer peripheral wall of the insertion pipe 500. The outer peripheral wall of the insertion pipe 500 and the inner peripheral wall of the main pipe 100 define a first cavity 610 and a second cavity 620 with the seals 600b. The first opening 550 is connected to the first cavity 610, and the second opening 560 is connected to the second cavity 620. The provided seal 600b can not only make the first opening 550 and the second opening 560 be independently provided, but also can cooperate with the connector 600a to fix the insertion pipe 500. It should be noted that a limiting platform is provided in the main pipe 100, and the seal 600b is provided on the limiting platform. The seal 600b includes a rubber sealing ring, which is sleeved on the insertion pipe 500, and its outer ring abuts against the inner peripheral wall of the main pipe 100 for sealing. The connecting piece 600a includes a rubber plug, which is used to be inserted into the two ends of the main pipe 100. The rubber plug has a mounting hole for mounting and fixing the insertion tube 500. The connecting piece 600a can also be a threaded tube, which is threadedly connected to the end of the main pipe 100, and the tube cavity of the threaded tube is used to mount the insertion tube 500.

[0047] In some embodiments, a connecting tube 700 is further included. The connecting tube 700 is sleeved on the main tube 100. The connecting tube 700 is placed in the second cavity 620. A penetration portion 710 is provided on the peripheral wall of the connecting tube 700. A gap portion 720 is provided between the connecting tube 700 and the main tube 100 and / or the insertion tube 500. The penetration portion 710 is connected to the gap portion 720. The second branch tube 300 is connected to the second opening 560 through the penetration portion 710. It can be understood that the connecting tube 700 serves to connect the second opening 560 and to reduce the use load of the sealing member 600b to a certain extent.

[0048] In some embodiments, a plurality of through-portions 710 are provided, and the plurality of through-portions 710 are evenly spaced around the peripheral wall of the connecting tube 700 . It should be noted that four through-portions 710 are provided.

[0049] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A five-way mechanism, characterized in that: An insertion tube (500) applied to an endoscope, the insertion tube (500) being provided with an instrument channel (530) and a water and gas channel (540) along the axial direction, and a five-way mechanism comprising: The three-way pipe is arranged in a Y shape, a third branch pipe (400) is opened on one branch of the three-way pipe, a second branch pipe (300) is opened on the other branch of the three-way pipe, the insertion tube (500) is used to be inserted into the three-way pipe, the second branch pipe (300) is connected to the water-gas channel (540), the third branch pipe (400) and one of the branches are connected to the instrument channel (530), and the instrument channel (530) and the water-gas channel (540) are arranged in isolation.

2. A five-way mechanism according to claim 1, characterized in that: The insertion tube (500) is also provided with a traction channel (510) and a wire installation channel (520) along the axial direction, and a first opening (550) and a second opening (560) are provided on the side wall of the insertion tube (500). The three-way tube comprises: A main pipe (100), wherein the first opening (550) and the second opening (560) are separately arranged in the main pipe (100); The first branch pipe (200) is arranged on the peripheral wall of the main pipe (100), the first branch pipe (200) is connected to the instrument channel (530) through the first opening (550), the first branch pipe (200) divides the main pipe (100) into an insertion section (100a) and a connection section (100b), the insertion pipe (500) is inserted into the insertion section (100a), the second branch pipe (300) is arranged on the peripheral wall of the connection section (100b), the second branch pipe (300) is connected to the water vapor channel (540) through the second opening (560), and the third branch pipe (400) is arranged on the peripheral wall of the first branch pipe (200), the third branch pipe (400) is connected to the first branch pipe (200), and the third branch pipe (400) is used to transport fluid.

3. A five-way mechanism according to claim 2, characterized in that: A first limiting plate (110) and a second limiting plate (120) are provided on the outer peripheral wall of the main pipe (100); the first limiting plate (110) and the second limiting plate (120) define a limiting groove (130); the limiting groove (130) is used to clamp the hose on the third branch pipe (400).

4. A five-way mechanism according to claim 3, characterized in that: The device further comprises a first plug (531) and a second plug (541); the traction channel (510), the wire installation channel (520), the instrument channel (530) and the water vapor channel (540) are all arranged to penetrate along the axial direction of the insertion tube (500); the first plug (531) is fixed to the insertion end of the instrument channel (530), and the second plug (541) is fixed to the insertion end of the water vapor channel (540).

5. A five-way mechanism according to claim 4, characterized in that: A first temperature sensor and / or a first pressure sensor may be provided on one end of the instrument channel (530) close to the first plug (531), and a second temperature sensor and / or a second pressure sensor may be provided on one end of the water vapor channel (540) close to the second plug (541).

6. A five-way mechanism according to claim 3 or 5, characterized in that: The invention also comprises a connecting piece (600a) and a sealing piece (600b), wherein the two ends of the main pipe (100) are respectively connected to the connecting pieces (600a), the connecting piece (600a) is used to fix the insertion pipe (500), and a plurality of sealing pieces (600b) are sleeved on the outer peripheral wall of the insertion pipe (500), the outer peripheral wall of the insertion pipe (500) and the inner peripheral wall of the main pipe (100) and the sealing pieces (600b) define a first cavity (610) and a second cavity (620), the first opening (550) is connected to the first cavity (610), and the second opening (560) is connected to the second cavity (620).

7. A five-way mechanism according to claim 6, characterized in that: The invention also comprises a connecting pipe (700), wherein the connecting pipe (700) is sleeved on the main pipe (100), the connecting pipe (700) is placed in the second cavity (620), a through-portion (710) is provided on the peripheral wall of the connecting pipe (700), a gap portion (720) is provided between the connecting pipe (700) and the main pipe (100) and / or the insertion pipe (500), the through-portion (710) is connected to the gap portion (720), and the second branch pipe (300) is connected to the second opening (560) via the through-portion (710) and the gap portion (720).

8. A five-way mechanism according to claim 7, characterized in that: A plurality of the through-portions (710) are provided, and the plurality of the through-portions (710) are distributed at intervals around the peripheral wall of the connecting pipe (700).

9. An endoscope, characterized in that: The invention comprises the five-way mechanism according to any one of claims 2 to 8, and further comprises a handle shell (800), wherein the five-way mechanism is arranged in an inner cavity of the handle shell (800), and the first branch pipe (200) extends from an opening on the handle shell (800) to the outside of the handle shell (800).

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