Working sheath and endoscope

Abstract

The utility model relates to a working sheath and an endoscope, which are characterized in that the working sheath comprises a first instrument working tube, the first instrument working tube is provided with a second instrument working tube and a support, the second instrument working tube is movably connected with the first instrument working tube, and the second instrument working tube is detachably connected with the support. When the working sheath disclosed by the utility model is used, two diagnosis and treatment instruments can be simultaneously operated to respectively enter the first instrument working tube and the second instrument working tube to carry out surgical operation, and the first instrument working tube is movably connected with the second instrument working tube; therefore, the angle of the first instrument working tube and the angle of the second instrument working tube can be adjusted in the surgery process, and surgery operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a working sheath and an endoscope. Background Art

[0002] In surgical operations, a working sheath is often used for surgical operations. When faced with complex operations, the working sheath usually needs to have two instrument channels.

[0003] Chinese utility model patent CN217286904U "Dual-channel working sleeve" discloses a dual-channel working sleeve, including a tube body and a handle, the handle is fixed on the outer wall of one end of the tube body, the space in the tube body is a first working channel, and an arc-shaped cover body is provided on the outer wall of the tube body, and the arc-shaped cover body and the outer wall of the tube body together form a second working channel.

[0004] However, although CN217286904U provides a dual-channel working cannula, when it is used, the angle between the two working channels cannot be adjusted, which limits the operating space of diagnostic and treatment instruments such as tissue clamps and is inconvenient for surgical operations. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a working sheath and an endoscope to facilitate surgical operations.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A working sheath comprises a first instrument working tube, on which a second instrument working tube and a support movably connected to the first instrument working tube are arranged, and the second instrument working tube is detachably connected to the support.

[0008] Furthermore, the first instrument working tube and the second instrument working tube are connected via a flexible member.

[0009] Furthermore, the connection between the second instrument working tube and the support is located at the first end of the second instrument working tube, and the connection between the first instrument working tube and the second instrument working tube is located at the second end of the second instrument working tube; when the second instrument working tube is connected to the support, the second instrument working tube and the first instrument working tube are inclined, and the distance from the first end to the first instrument working tube is greater than the distance from the second end to the first instrument working tube.

[0010] Furthermore, when the second instrument working tube is connected to the support, the angle between the second instrument working tube and the first instrument working tube is 2 degrees to 10 degrees.

[0011] Furthermore, the support is provided with a C-shaped connecting buckle, and the second instrument working tube is detachably connected to the C-shaped connecting buckle.

[0012] Furthermore, a handle is provided on the working tube of the second instrument, and the connection or separation of the working tube of the second instrument with the support can be controlled by operating the handle.

[0013] An endoscope comprises a handheld portion and the working sheath described above, wherein the first instrument working tube is arranged on the handheld portion, the connection between the first instrument working tube and the second instrument working tube is arranged away from the handheld portion, and the connection between the support and the second instrument working tube is arranged close to the handheld portion.

[0014] Furthermore, when the second instrument working tube is connected to the support, an inclined surface is provided at one end of the second instrument working tube away from the handheld portion, and an opening direction of the inclined surface is arranged toward a direction away from the first instrument working tube.

[0015] Furthermore, the hand-held part is provided with an endoscope rod, the first instrument working tube is sleeved outside the endoscope rod, the endoscope rod is provided with a first instrument channel arranged along the axial direction of the endoscope rod, and the first instrument working tube can rotate around the axis of the first instrument working tube.

[0016] Furthermore, the hand-held part is detachably connected to the working tube of the first instrument.

[0017] Compared with the prior art, the utility model has the beneficial effect that: by providing the second instrument working tube and the support movably connected to the first instrument working tube on the first instrument working tube, and arranging the second instrument working tube to be detachably connected to the support, during the operation, the working sheath of the utility model can simultaneously operate two diagnostic and treatment instruments such as tissue clips and puncture devices to enter the first instrument working tube and the second instrument working tube respectively for surgical operations, and because the first instrument working tube and the second instrument working tube are movably connected, the angles of the first instrument working tube and the second instrument working tube can be adjusted during the operation, which is convenient for surgical operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the working sheath of the utility model;

[0019] Figure 2 It is a first stereoscopic schematic diagram of the endoscope of the utility model;

[0020] Figure 3 It is a second stereoscopic schematic diagram of the endoscope of the utility model.

[0021] In the figure:

[0022] 1-first instrument working tube; 2-second instrument working tube; 3-support; 4-handle; 5-handheld part; 6-endoscope rod; 7-first instrument channel; 8-second instrument channel. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] The utility model discloses a working sheath, which is mainly used as a medical device in surgery. Figure 1 As shown, in this embodiment, the first instrument working tube 1 is provided with a second instrument working tube 2 movably connected to the first instrument working tube 1, the first instrument working tube 1 is provided with a support 3 fixedly connected to the first instrument working tube 1, and the second instrument working tube 2 is also detachably connected to the support 3. Both the first instrument working tube 1 and the second instrument working tube 2 can allow diagnostic and treatment instruments such as punctures to pass through. In this embodiment, the diameter of the second instrument working tube 2 can be larger than the diameter of the first instrument working tube 1, so the second instrument working tube 2 can be used for diagnostic and treatment instruments with a larger volume than the puncture, such as tissue clips, to enter.

[0027] During the operation of the endoscope of the utility model, the first instrument working tube 1 and the second instrument working tube 2 can enter the patient's body at the same time, and at this time, the second instrument working tube 2 is connected to the support 3. When the surgeon finds the operation position, the surgeon can simultaneously operate two diagnostic and treatment instruments to enter the first instrument working tube 1 and the second instrument working tube 2 respectively to perform the operation, and because the first instrument working tube 1 and the second instrument working tube 2 are movably connected, when it is necessary to adjust the angle between the first instrument working tube 1 and the second instrument working tube 2 during the operation, the second instrument working tube 2 can be separated from the support 3, and the connection between the second instrument working tube 2 and the first instrument working tube 1 is taken as the origin, and the second instrument working tube 2 can be moved to rotate freely in all directions around the origin, so as to realize the angle adjustment between the second instrument working tube 2 and the two diagnostic and treatment instruments such as the puncture device and tissue clamp in the first instrument working tube 1, so as to facilitate the operation. In this embodiment, if Figure 1 As shown, the first instrument working tube 1 and the second instrument working tube 2 are movably connected by a flexible member. Therefore, when the surgeon performs a more complicated operation and needs to adjust the position between the first instrument working tube 1 and the second instrument working tube 2, if the diagnostic and treatment instrument in the first instrument working tube 1 is a puncture device and the diagnostic and treatment instrument in the second instrument working tube 2 is a tissue clamp, the surgeon can operate the puncture device in the first instrument working tube 1 with the left hand and operate the tissue clamp in the second instrument working tube 2 with the right hand, and drive the second instrument working tube 2 to move by moving the tissue clamp. And because the first instrument working tube 1 and the second instrument working tube 2 are movably connected by the flexible member, the second instrument working tube 2 can rotate freely with the connection between the first instrument working tube 1 and the second instrument working tube 2 as the origin. Specifically, the first instrument working tube 1 and the second instrument working tube 2 are connected by welding, and the flexible member is a welding point similar to a metal sheet, and the metal sheet can be twisted, folded, etc., so that the second instrument working tube 2 can rotate freely in all directions relative to the first instrument working tube 1. In other embodiments, the flexible member may also be a thin rope, and the two ends of the thin rope are respectively connected to the first instrument working tube 1 and the second instrument working tube 2. In other embodiments, the first instrument working tube 1 and the second instrument working tube 2 may also be connected by an elastic member, and the elastic member may be an elastic rope; relative to the flexible member, the elastic member can achieve not only twisting and folding, but also stretching and contraction, so that the adjustment range between the first instrument working tube 1 and the second instrument working tube 2 is further expanded. The utility model connects the first instrument working tube 1 and the second instrument working tube 2 by using a flexible member, so that the first instrument working tube 1 and the second instrument working tube 2 have a larger adjustment range. In this embodiment, Figure 1 As shown, the connection between the second instrument working tube 2 and the support 3 is located at the first end of the second instrument working tube 2, and the connection between the first instrument working tube 1 and the second instrument working tube 2 is located at the second end of the second instrument working tube 2. When the second instrument working tube 2 is connected to the support 3, the first instrument working tube 1 and the second instrument working tube 2 are arranged obliquely, the angle between the first instrument working tube 1 and the second instrument working tube 2 is 2 degrees to 10 degrees, and the distance from the first end to the first instrument working tube 1 is greater than the distance from the second end to the first instrument working tube 1. That is, when the second instrument working tube 2 is connected to the support 3, the second instrument working tube 2 and the first instrument working tube 1 form a sharp angle, which facilitates the working sheath of the utility model to enter the patient's body.

[0028] In this embodiment, Figure 1 As shown, the support 3 is provided with a C-shaped connection buckle, and the second instrument working tube 2 is detachably connected to the C-shaped connection buckle. In other embodiments, the support 3 may also be provided with a card slot, and the second instrument working tube 2 may be provided with a card buckle that matches the card slot, and the support 3 and the second instrument working tube 2 are detachably connected through the card slot and the card buckle connection.

[0029] In this embodiment, Figure 1 As shown, a handle 4 is provided on the second instrument working tube 2 , and the second instrument working tube 2 can be controlled to be connected to or separated from the support 3 by operating the handle 4 .

[0030] The working sheath of the utility model can be used alone or set on an endoscope. Therefore, the utility model discloses an endoscope mainly used in orthopedic surgery. Figures 2 to 3 As shown, the endoscope of the present invention comprises a handheld portion 5 and the working sheath, specifically, the first instrument working tube 1 is arranged on the handheld portion 5, the connection between the first instrument working tube 1 and the second instrument working tube 2 is arranged away from the handheld portion 5, and the connection between the support 3 and the second instrument working tube 2 is arranged close to the handheld portion 5. The endoscope of the present invention is a disposable endoscope, that is, the endoscope of the present invention is taken out from the sealed packaging bag before the operation begins, and after the operation is completed, the endoscope of the present invention is treated as medical waste.

[0031] In other embodiments, the connection between the first instrument working tube 1 and the second instrument working tube 2 may be arranged close to the handheld portion 5, and the connection between the support 3 and the second instrument working tube 2 may be arranged away from the handheld portion 5. In this embodiment, after two diagnostic and treatment instruments pass through the first instrument working tube 1 and the second instrument working tube 2 respectively, the relative positions of the first instrument working tube 1 and the second instrument working tube 2 are adjusted, and the contact ends of the two diagnostic and treatment instruments such as the puncture device and the tissue clip in the first instrument working tube 1 and the second instrument working tube 2 with the patient may be far apart as the positions of the first instrument working tube 1 and the second instrument working tube 2 are adjusted, which may cause the risk of enlarging the patient's wound and is not suitable for minimally invasive surgery.

[0032] In this embodiment, Figure 2 As shown, when the second instrument working tube 2 is connected to the support 3, a slope is provided at one end of the second instrument working tube 2 away from the hand-held portion 5, and the opening direction of the slope is arranged in a direction away from the first instrument working tube 1. The utility model facilitates the second instrument working tube 2 to enter the patient's body through the arrangement of the slope, and reduces the damage to the patient caused by the opening of the second instrument working tube 2.

[0033] In this embodiment, Figure 2 and Figure 3As shown, the handheld part 5 is provided with an endoscope rod 6, and the endoscope rod 6 is provided with a first instrument channel 7 arranged along the axial direction of the endoscope rod 6. At the same time, the handheld part 5 is provided with a second instrument channel 8, and the first instrument channel 7 and the second instrument channel 8 are interconnected to form an integral channel. A puncture device and other diagnostic and treatment instruments can enter from the second instrument channel 8 and pass through the first instrument channel 7. The first instrument working tube 1 is sleeved outside the endoscope rod 6, and a gap is set between the first instrument working tube 1 and the endoscope rod 6, so that the first instrument working tube 1 and the end of the endoscope rod 6 away from the handheld part 5 form a saline outlet, and the saline flows out from the gap between the first instrument working tube 1 and the endoscope rod 6. In addition, the end of the endoscope rod 6 away from the handheld part 5 is provided with a lighting assembly and a camera assembly. In other embodiments, the saline outlet can also be provided on the endoscope rod 6, and specifically, the saline outlet is provided at the end of the endoscope rod 6 away from the handheld part 5. In this embodiment, the handheld portion 5 is provided with a water interface and an electrical interface, the water interface is connected to the physiological saline outlet, and the electrical interface is respectively connected to the lighting assembly and the camera assembly. When using the endoscope of the utility model, the surgeon first connects the electrical interface to an external power source, connects the water interface to an external water source, and cuts the patient's skin tissue, then extends the endoscope rod 6, the first instrument working tube 1 and the second instrument working tube 2 into the patient's body, the physiological saline outlet continuously outputs physiological saline, and the surgeon searches for the surgical position through the image transmitted by the camera assembly. When the surgeon finds the surgical position, the corresponding diagnostic and treatment instruments enter from the second instrument channel 8 and pass through the first instrument channel 7. The surgeon operates the diagnostic and treatment instruments such as the puncture instrument close to one end of the handheld portion 5 to operate the diagnostic and treatment instruments.

[0034] In this embodiment, if Figure 2 As shown, since the connection point between the second instrument working tube 2 and the first instrument working tube 1 is above the first instrument working tube 1, no matter how the second instrument working tube 2 is adjusted, the second instrument working tube 2 is above the first instrument working tube 1. However, in actual surgical use, the position of the surgery is varied. If the second instrument working tube 2 can be adjusted to the bottom of the first instrument working tube 1 when necessary, it will further facilitate the operation of the surgery. Therefore, in other embodiments, the first instrument working tube 1 is set to rotate around the axis of the first instrument working tube 1. The surgeon can rotate the first instrument working tube 1, that is, adjust the position of the connection point between the second instrument working tube 2 and the first instrument working tube 1, so that the second instrument working tube 2 rotates around the axis of the endoscope rod 6 until the second instrument working tube 2 is rotated to the ideal surgical position.

[0035] In other embodiments, in an operation that requires treatment of multiple surgical locations, the wounds that need to be incised at different surgical locations are of different sizes, and the number of medical tools that need to be used simultaneously to treat different surgical locations is also different. Therefore, the handheld portion 5 can be provided with a detachable connection with the first instrument working tube 1, that is, the working sheath can be detachably connected with the handheld portion 5. In this embodiment, the water outlet of the physiological saline is not the gap between the first instrument working tube 1 and the endoscope rod 6. In this embodiment, the water outlet of the physiological saline is provided at one end of the endoscope rod 6 away from the handheld portion 5. When treating a surgical location that requires incising a small wound and only one instrument such as a puncture device is required for surgical operation, the surgeon can remove the first instrument working tube 1 from the handheld portion 5, that is, the surgeon can remove the working sheath from the handheld portion 5. During the operation, only the endoscope rod 6 is inserted into the patient's body. When a surgical site that requires a large wound and multiple diagnostic and treatment instruments such as a puncture device and a tissue clip are required for surgical operation, the surgeon connects the first instrument working tube 1 to the handheld part 5. The endoscope of the utility model realizes the detachable connection of the working sheath by detachably connecting the first instrument working tube 1 to the handheld part 5, which is convenient for doctors to perform surgical operations at different locations.

[0036] In summary, the working sheath of the utility model is movably connected with the first instrument working tube 1 and the second instrument working tube 2. Therefore, when the angle of the first instrument working tube 1 and the second instrument working tube 2 needs to be adjusted during the operation, the second instrument working tube 2 can be separated from the support 3, and the connection between the second instrument working tube 2 and the first instrument working tube 1 is taken as the origin. The second instrument working tube 2 can be moved to rotate freely in all directions around the origin, so as to achieve the angle adjustment between the second instrument working tube 2 and the two diagnostic and treatment instruments such as the puncture device and the tissue clip in the first instrument working tube 1, which is convenient for surgical operation. And by using a flexible member to connect the first instrument working tube 1 and the second instrument working tube 2, the first instrument working tube 1 and the second instrument working tube 2 have a larger adjustment range. And by setting the first instrument working tube 1 and the second instrument working tube 2 to tilt when the second instrument working tube 2 is connected to the support 3, the working sheath of the utility model can be convenient for entering the patient's body. And by setting the handle 4, the second instrument working tube 2 can be controlled to connect or separate from the support 3. The inclined surface is provided to facilitate the entry of the second instrument working tube 2 into the patient's body, reducing the damage to the patient caused by the opening of the second instrument working tube 2. The first instrument working tube 1 can rotate around the axis of the first instrument working tube 1, so as to facilitate the rotation of the second instrument working tube 2 to the ideal surgical position. The first instrument working tube 1 is detachably connected to the handheld part 5 to achieve the detachable connection of the working sheath, so as to facilitate the doctor to perform surgical operations at different positions.

[0037] It should be emphasized that the above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A working sheath, characterized in that: The invention comprises a first instrument working tube (1), on which a second instrument working tube (2) and a support (3) movably connected to the first instrument working tube (1) are provided, and the second instrument working tube (2) and the support (3) are detachably connected.

2. The working sheath according to claim 1, characterized in that: The first instrument working tube (1) and the second instrument working tube (2) are connected via a flexible member.

3. The working sheath according to claim 1, characterized in that: The connection point between the second instrument working tube (2) and the support (3) is located at the first end of the second instrument working tube (2), and the connection point between the first instrument working tube (1) and the second instrument working tube (2) is located at the second end of the second instrument working tube (2); when the second instrument working tube (2) is connected to the support (3), the second instrument working tube (2) and the first instrument working tube (1) are arranged obliquely, and the distance from the first end to the first instrument working tube (1) is greater than the distance from the second end to the first instrument working tube (1).

4. The working sheath according to claim 2, characterized in that: When the second instrument working tube (2) is connected to the support (3), the angle between the second instrument working tube (2) and the first instrument working tube (1) is 2 degrees to 10 degrees.

5. The working sheath according to claim 1, characterized in that: The support (3) is provided with a C-shaped connecting buckle, and the second instrument working tube (2) is detachably connected to the C-shaped connecting buckle.

6. The working sheath according to claim 1, characterized in that: The second instrument working tube (2) is provided with a handle (4), and the second instrument working tube (2) can be controlled to be connected to or separated from the support (3) by operating the handle (4).

7. An endoscope, characterized in that: It comprises a hand-held part (5) and a working sheath as described in any one of claims 1 to 6, wherein the first instrument working tube (1) is arranged on the hand-held part (5), the connection between the first instrument working tube (1) and the second instrument working tube (2) is arranged away from the hand-held part (5), and the connection between the support (3) and the second instrument working tube (2) is arranged close to the hand-held part (5).

8. The endoscope according to claim 7, characterized in that: When the second instrument working tube (2) is connected to the support (3), an inclined surface is provided at one end of the second instrument working tube (2) away from the handheld portion (5), and the opening direction of the inclined surface is arranged in a direction away from the first instrument working tube (1).

9. The endoscope according to claim 7, characterized in that: The handheld portion (5) is provided with an endoscope rod (6), the first instrument working tube (1) is sleeved outside the endoscope rod (6), the endoscope rod (6) is provided with a first instrument channel (7) arranged along the axial direction of the endoscope rod (6), and the first instrument working tube (1) can rotate around the axis of the first instrument working tube (1).

10. The endoscope according to claim 9, characterized in that The handheld part (5) is detachably connected to the first instrument working tube (1).

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