Endoscopic cannula set

By designing a finite piece and a shape-matched workpiece in the inner vision cannula group, the problem of misjudgment of the lesion caused by the rotation of the workpiece in the traditional inner vision cannula group is solved, and higher operating accuracy is achieved.

CN119818014APending Publication Date: 2025-04-15HUKUI BIOTECHNOLOGY CORP
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Patent Information

Application Number
CN202411323543.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-06-06
Filing Date
2024-09-23
Publication Date
2025-04-15

AI Technical Summary

Technical Problem

When used in traditional inner vision cannula groups, the working parts are prone to rotate in the working channel of the catheter, resulting in misjudgment of the lesion orientation.

Method used

An inner view sleeve group is designed, which has a limiting member, and the cross-sectional shape of the workpiece matches the limiting opening of the limiting member to limit the rotation of the workpiece in the catheter.

Benefits of technology

It effectively avoids the rotation of the workpiece in the catheter, reduces the possibility of misjudgment of the lesion orientation, and improves the accuracy of the operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

An endoscopic cannula set comprises an endoscopic cannula which comprises a body and a sleeve, the catheter is connected with the body, a single working channel is formed in the catheter, and the catheter is provided with a near-end opening close to the body and a far-end opening far away from the body; the limiting piece is arranged at the far-end opening of the catheter in a sleeving manner and is provided with a non-circular limiting opening and a limiting mark; and the cross section of the working piece has a shape matched with the limiting opening of the limiting piece, and the working piece is provided with at least one positioning mark. The endoscopic cannula set is suitable for observation, sampling and / or treatment of the focus of the lung.
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Description

Technical Field

[0001] The present invention relates to an internal viewing sleeve group, and in particular to an internal viewing sleeve group comprising an internal viewing sleeve and a working piece, wherein the internal viewing sleeve has a limiting piece, and the cross section of the working piece has a shape matching a limiting opening of the limiting piece. Background Art

[0002] The endoscopic cannula set can be used for observation, sampling and / or treatment of lung lesions. Traditionally, the endoscopic cannula set includes an endoscopic cannula and a working piece (e.g., an imaging device, a sampling device or a flushing device), wherein the working piece can reach the lesion through a working channel in the catheter of the endoscopic cannula.

[0003] However, when the conventional endoscopic cannula assembly is in use, it is impossible to prevent the working piece from rotating in the working channel of the catheter, thus easily leading to misjudgment of the location of the lesion. Summary of the invention

[0004] The conventional endoscopic cannula still has room for improvement. Therefore, one object of the present invention is to provide an endoscopic cannula assembly, which can limit the rotation of the working piece in the working channel of the catheter to avoid misjudging the position of the lesion.

[0005] To achieve the above and other purposes, the present invention provides an internal viewing cannula assembly, comprising:

[0006] An inner viewing casing, comprising:

[0007] ontology;

[0008] A catheter connected to the body, wherein the catheter has a single working channel inside and has a proximal opening adjacent to the body and a distal opening away from the body; and

[0009] a limiting member, which is sleeved on the distal end opening of the catheter and has a non-circular limiting opening and a limiting mark; and

[0010] The working piece has a cross section having a shape matching the limiting opening of the limiting piece and has at least one positioning mark.

[0011] In one embodiment of the present invention, in the internal viewing cannula assembly, the stopper may be at least partially made of a material that is not transparent to X-rays.

[0012] In one embodiment of the present invention, in the internal viewing sleeve assembly, the limiting member may further include a plurality of guide members extending from the limiting opening of the limiting member toward the inner edge of the limiting member.

[0013] In one embodiment of the present invention, in the internal viewing cannula assembly, the working piece may be a camera device, a sampling device or a flushing device.

[0014] In one embodiment of the present invention, the inner viewing cannula in the inner viewing cannula set may further include:

[0015] An inflatable device covers the catheter, wherein an expansion end of the inflatable device adjacent to the distal opening of the catheter is made of elastic material, and one end of the inflatable device adjacent to the distal opening of the catheter is closed, while an end adjacent to the proximal opening of the catheter is connected to the external fluid through the injection opening of the injection piece.

[0016] Thereby, when gas is injected into the space between the inflation device and the catheter from the gas injection opening, the expansion tip will expand.

[0017] In one embodiment of the present invention, the inner viewing cannula in the inner viewing cannula set may further include:

[0018] A distal bending mechanism, which is connected to the body and the catheter, comprises:

[0019] An operating handle, which is disposed outside the body and rotatably connected to the body;

[0020] a turntable, which is disposed inside the body and connected to the operating handle; and

[0021] A cable is partially wound around the rotating disk, and two ends of the cable are respectively connected to two sides adjacent to the distal end opening of the catheter.

[0022] Thereby, when the operating handle is rotated, the cable will be driven to bend the portion of the catheter adjacent to the distal opening.

[0023] In one embodiment of the present invention, the inner viewing cannula in the inner viewing cannula set may further include:

[0024] A catheter rotating mechanism, connected to the body and the catheter, comprises:

[0025] A rotating wheel is connected to the conduit and rotatably connected to the body.

[0026] Thereby, when the rotating wheel is rotated, the catheter will be driven to rotate.

[0027] In one embodiment of the present invention, the inner viewing cannula in the inner viewing cannula set may further include:

[0028] The sensing mechanism is connected with the distal end bending mechanism and the catheter rotating mechanism to sense the bending state of the catheter adjacent to the distal end opening and the rotating state of the catheter.

[0029] In one embodiment of the present invention, the catheter in the internal viewing cannula assembly may further have a flushing port adjacent to the proximal opening.

[0030] In one embodiment of the present invention, the catheter in the internal viewing cannula assembly may have a snake-bone structure adjacent to the distal opening.

[0031] The endoscopic cannula assembly of the present invention can limit the rotation of the working piece in the working channel of the catheter by providing the endoscopic cannula with a limiting piece and the working piece with a limiting opening shape matching the limiting piece, so as to avoid misjudging the position of the lesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of an internal view of a casing assembly according to an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of another angle of the internal view of the sleeve assembly in an embodiment of the present invention;

[0034] Figure 3 It is an enlarged schematic diagram of the position-limiting member of the internal view of the sleeve assembly in the embodiment of the present invention;

[0035] Figure 4 It is a schematic diagram of a stopper in an internal view sleeve of an internal view sleeve assembly in an embodiment of the present invention;

[0036] Figure 5 A cross-sectional schematic diagram of the expansion end of the inflation device of the internal cannula of the internal cannula assembly of the embodiment of the present invention; and

[0037] Figure 6 It is a schematic exploded view of an internal view sleeve of an internal view sleeve assembly in an embodiment of the present invention.

[0038] Reference numerals:

[0039] 1 Internal sight tube set

[0040] 10 Internal sight tube

[0041] 11 body

[0042] 12 Catheter

[0043] 121 working channel

[0044] 122 proximal opening

[0045] 123 Distal opening

[0046] 124 flushing port

[0047] 125 Snake Bone Structure

[0048] 13 Limiting parts

[0049] 131 Limited opening

[0050] 132 limit mark

[0051] 133 Guide

[0052] 14 Inflatable device

[0053] 141 Expansion end

[0054] 142 Gas injection parts

[0055] 143 Gas injection opening

[0056] 15 Distal bending mechanism

[0057] 151 Operating handle

[0058] 152 Turntable

[0059] 153 Cable

[0060] 16 Catheter Rotation Mechanism

[0061] 161 Wheel

[0062] 20 Workpieces

[0063] 201 Positioning Mark DETAILED DESCRIPTION

[0064] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail by means of the following specific embodiments. The description is as follows:

[0065] Example:

[0066] The inner viewing sleeve assembly of the embodiment of the present invention is as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown.

[0067] The internal viewing sleeve assembly 1 of the embodiment of the present invention comprises: an internal viewing sleeve 10 ; and a working piece 20 .

[0068] The internal viewing tube 10 in the internal viewing tube set 1 of the present embodiment includes a body 11. For example, the body 11 may be made of plastic or metal, but the present invention is not limited thereto.

[0069] The endoscopic cannula 10 of the present embodiment further comprises a catheter 12 connected to the body 11 , wherein the catheter 12 has a single working channel 121 therein and has a proximal opening 122 adjacent to the body 11 and a distal opening 123 away from the body 11 .

[0070] The endoscopic sleeve 10 of the present embodiment further includes: a limit member 13, which is sleeved on the distal opening 123 of the catheter 12, and has a non-circular limit opening 131, and has a limit mark 132. In the present embodiment, the shape of the limit opening 131 is a square with arc angles, but the present invention is not limited to this, as long as it is a non-circular shape. In the present embodiment, the limit mark 132 is a hole located on the side of the limit member 13, but the present invention is not limited to this. In the present embodiment, the limit member 13 also has a plurality of guide members 133, which extend from the limit opening 131 of the limit member 13 toward the inner edge of the limit member 13, so as to guide the working piece 20 to pass through the limit opening 131, but the present invention is not limited to this.

[0071] In this embodiment, the stopper 13 is made of metal, but the present invention is not limited thereto. By making the stopper 13 of metal that is not transparent to X-rays, the stopper 13 can be clearly imaged in medical images using X-rays as an energy source, so that the user can confirm the position of the stopper 13 in the human body.

[0072] The cross section of the working piece 20 in the internal viewing cannula assembly 1 of this embodiment has a shape matching the limiting opening 131 of the limiting piece 13, and has at least one positioning mark 201. The working piece 20 can be a camera device, a sampling device or a flushing device, but the present invention is not limited thereto.

[0073] For example, the endoscopic cannula assembly 1 of the present embodiment can first use a camera device as a working piece 20, and set the camera device in the working channel 121 of the endoscopic cannula 10, and use the camera device to confirm that the distal opening 123 of the catheter 12 has reached the position adjacent to the lesion. Subsequently, the camera device can be withdrawn from the working channel 121, and a working piece 20 such as a sampling device or a flushing device can be set in the working channel 121 to sample and / or treat the lesion. In the process of using and replacing different working pieces 20, the endoscopic cannula assembly 1 of the present embodiment can limit the rotation of the working piece 20 in the working channel 121 of the catheter 12 by virtue of the technical feature that the cross section of the working piece 20 has a shape that matches the limiting opening 131 of the limiting piece 13, so as to avoid misjudging the position of the lesion. In addition, the relative position between the endoscopic cannula 10 and the working piece 20 can be confirmed by making the positioning mark 201 of the working piece 20 match the limiting mark 132 of the limiting piece 13. In a preferred embodiment, the work piece 20 has a positioning mark 201 at one end adjacent to the operator, so that the operator can confirm the relative position between the internal viewing sleeve 10 and the work piece 20 when the work piece 20 has been inserted into the catheter 12 .

[0074] The internal viewing cannula 10 of the internal viewing cannula set 1 of the present embodiment further comprises: an inflation device 14 which covers the catheter 12 , but the present invention is not limited thereto.

[0075] Among them, an expansion end 141 of the inflation device 14 adjacent to the distal opening 123 of the catheter 12 is made of elastic material, and one end of the inflation device 14 adjacent to the distal opening 123 of the catheter 12 is closed, and one end adjacent to the proximal opening 122 of the catheter 12 is connected to the external fluid through the injection opening 143 of the injection piece 142.

[0076] An expansion end 141 of the inflatable device 14 adjacent to the distal opening 123 of the catheter 12 is made of elastic material. When gas is injected into the space between the inflatable device 14 and the catheter 12 from the gas injection opening 143, the expansion end 141 will expand into a Figure 1 When the gas is not injected into the space between the inflatable device 14 and the catheter 12, the expansion end 141 of the inflatable device 14 fits the catheter 12 so as to penetrate deep into the lungs.

[0077] In the embodiment including the inflatable device 14, when a camera device is used as the working piece 20 and the camera device is used to confirm that the distal opening 123 of the catheter 12 has reached a position adjacent to the lesion, the position of the distal opening 123 can be further fixed by expanding the expansion end 141. In this way, the position between the distal opening 123 and the lesion can be fixed to avoid displacement between the distal opening 123 and the lesion during the process of replacing different working pieces 20.

[0078] The endoscopic cannula 10 of the endoscopic cannula set 1 of the present embodiment further includes a distal bending mechanism 15 connected to the body 11 and the catheter 12 , but the present invention is not limited thereto.

[0079] The distal bending mechanism 15 includes: an operating handle 151, which is disposed outside the body 11 and rotatably connected to the body 11; a rotating disk 152, which is disposed inside the body 11 and connected to the operating handle 151; and a cable 153, which is partially surrounded by the rotating disk 152 and has two ends respectively connected to two sides of the distal opening 123 of the catheter 12. Thus, when the operating handle 151 is rotated, the cable 153 is driven to bend the catheter 12 adjacent to the distal opening 123.

[0080] The endoscopic cannula 10 of the endoscopic cannula set 1 of the present embodiment further includes a catheter rotating mechanism 16 , which is connected to the body 11 and the catheter 12 , but the present invention is not limited thereto.

[0081] The catheter rotating mechanism 16 includes a rotating wheel 161 connected to the catheter 12 and rotatably connected to the body 11. Therefore, when the rotating wheel 161 is rotated, the catheter 12 is driven to rotate.

[0082] By providing the distal bending mechanism 15 and / or the catheter rotating mechanism 16 , the user can more precisely control the position of the distal opening 123 of the catheter 12 so as to penetrate deeper into the lesion.

[0083] The endoscopic cannula 10 of the endoscopic cannula group 1 of the present embodiment further includes: a sensing mechanism (not shown), which is connected to the distal bending mechanism 15 and the catheter rotation mechanism 16 to sense the bending state of the catheter 12 adjacent to the distal opening 123 and the rotation state of the catheter 12, but the present invention is not limited to this.

[0084] The sensing mechanism enables the user to grasp the bending state of the catheter 12 near the distal opening 123 and the rotation state of the catheter 12 at any time, so as to facilitate penetration into the deep lungs.

[0085] In this embodiment, in the endoscopic cannula 10, the catheter 12 further has a flushing port 124 adjacent to the proximal opening 122, but the present invention is not limited thereto. By providing the flushing port 124, the endoscopic cannula 10 can flush the lesion while the working piece 20 is kept in the working channel 121, which further improves the application flexibility of the endoscopic cannula 10.

[0086] In this embodiment, in the endoscopic cannula 10, the catheter 12 has a snake structure 125 near the distal opening 123, but the present invention is not limited thereto. The snake structure 125 ensures that the catheter 12 has sufficient rigidity and bending ability near the distal opening 123 to facilitate penetration into the deep lungs.

[0087] The present invention has been disclosed above with preferred embodiments, but those skilled in the art should understand that the embodiments are only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to the embodiments should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be based on the definition of the claims.

Claims

1. An internal viewing casing assembly, characterized in that: include: An inner viewing casing, comprising: ontology; A catheter connected to the body, wherein the catheter has a single working channel inside and has a proximal opening adjacent to the body and a distal opening away from the body; as well as a limiting member, which is sleeved on the distal end opening of the catheter and has a non-circular limiting opening and a limiting mark; and The working piece has a cross section having a shape matching the limiting opening of the limiting piece and has at least one positioning mark.

2. The internal viewing sleeve assembly according to claim 1, characterized in that: The stopper is at least partially made of a material that is not transparent to X-rays.

3. The internal viewing sleeve assembly according to claim 1, characterized in that: The limiting member also has a plurality of guide members extending from the limiting opening of the limiting member toward the inner edge of the limiting member.

4. The internal viewing sleeve assembly according to claim 1, characterized in that: The working piece is a camera device, a sampling device or a flushing device.

5. The internal viewing sleeve assembly according to claim 1, characterized in that: The inner viewing cannula further comprises: An inflatable device covering the catheter, wherein an expansion end of the inflatable device adjacent to the distal opening of the catheter is made of elastic material, and one end of the inflatable device adjacent to the distal opening of the catheter is closed, while one end adjacent to the proximal opening of the catheter is connected to an external fluid through a gas injection opening of a gas injection member; Thereby, when gas is injected into the space between the inflation device and the catheter from the gas injection opening, the expansion tip will expand.

6. The internal viewing sleeve assembly according to claim 1, characterized in that: The inner viewing sleeve further comprises: A distal bending mechanism, which is connected to the body and the catheter, comprises: An operating handle, which is disposed outside the body and rotatably connected to the body; a turntable, which is disposed inside the body and connected to the operating handle; and A cable, a portion of which is wound around the rotating disk, and two ends of which are respectively connected to two sides of the distal opening adjacent to the catheter; Thereby, when the operating handle is rotated, the cable will be driven to bend the portion of the catheter adjacent to the distal opening.

7. The internal viewing sleeve assembly according to claim 6, characterized in that: The inner viewing sleeve further comprises: A catheter rotating mechanism, connected to the body and the catheter, comprises: a rotating wheel connected to the conduit and rotatably connected to the body; Thereby, when the rotating wheel is rotated, the catheter will be driven to rotate.

8. The internal viewing sleeve assembly according to claim 7, characterized in that: The inner viewing sleeve further comprises: The sensing mechanism is connected with the distal end bending mechanism and the catheter rotating mechanism to sense the bending state of the catheter adjacent to the distal end opening and the rotating state of the catheter.

9. The internal viewing sleeve assembly according to claim 1, characterized in that: The catheter further has a flushing port adjacent to the proximal opening.

10. The internal viewing sleeve assembly according to claim 1, characterized in that: The catheter has a snake structure adjacent to the distal opening.