Biliary tract sub-mirror with externally-hung channel

Abstract

The invention provides a biliary tract sub-endoscope with an external hanging channel, and relates to the technical field of medical instruments. The biliary tract sub-endoscope with the external hanging channel comprises a biliary tract sub-endoscope body and an external hanging piece. An external hanging channel is formed in the biliary tract sub-endoscope body; one end of the externally-hung channel extends to a handle of the biliary tract sub-endoscope body, the other end of the externally-hung channel extends to the front end of the biliary tract sub-endoscope body, and a blocking piece is arranged at the front end of the externally-hung channel on the biliary tract sub-endoscope body; one end of the external hanging piece is slidably arranged in the external hanging channel, and the other end of the external hanging piece can be connected with an operating instrument. The technical effect that the biliary tract sub-mirror can be used in cooperation with a large-size operation instrument is achieved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a cholangioscope with an external access channel. Background Technology

[0002] A choledochoscope is an extremely thin endoscope that can be inserted deep into the bile duct through the mouth or percutaneous puncture, acting like a "high-definition camera" into the bile duct, allowing direct observation of the internal structures. Its core functions lie in precise diagnosis (for direct-vision biopsy of suspicious strictures or tumors) and efficient treatment (especially for treating large or impacted stones that are difficult to remove using traditional methods, breaking them up using laser or electrohydraulic methods), thus becoming a powerful minimally invasive tool in the diagnosis and treatment of biliary tract diseases.

[0003] However, the smaller diameter of the choledochoscope results in a narrower operating channel. Since instruments need to be inserted into the bile duct through this channel, large-diameter instruments that can be used within the bile duct cannot be inserted through the choledochoscope's operating channel. While larger instruments offer greater ease of use for medical personnel, they cannot be used in conjunction with the choledochoscope. Summary of the Invention

[0004] The purpose of this invention is to provide a cholangioscope with an external access channel to alleviate the technical problem that existing cholangioscopes cannot be used with large-sized instruments.

[0005] In a first aspect, embodiments of the present invention provide a cholangioscope with an external access channel, comprising a cholangioscope body and an external attachment; The cholangioscope body has an external mounting channel; One end of the external channel extends to the handle of the cholangioscope body, and the other end extends to the front end of the cholangioscope body. The cholangioscope body has a blocking element located at the front end of the external channel. One end of the external attachment is slidably disposed within the external attachment channel, and the other end can be connected to the operating device.

[0006] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the aforementioned blocking member is a blocking ring, and the blocking ring is disposed at the front end of the cholangioscope body.

[0007] In conjunction with the first aspect, the present invention provides one possible implementation of the first aspect, wherein the aforementioned blocking ring is a metal reinforcing ring.

[0008] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the aforementioned external attachment includes a guide and a connector; The guide member is connected to the connector, the guide member is slidably disposed within the external channel, and the connector is connected to the operating device.

[0009] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein there are multiple guide members and multiple connectors, and the guide members and the connectors are connected in a one-to-one correspondence.

[0010] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein a support guide wire is provided between the plurality of guide members.

[0011] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the connector includes a connecting side plate and a connecting seat; One end of the connecting seat is connected to the guide member via the connecting side plate, and the other end is connected to the operating device.

[0012] In conjunction with the first aspect, the present invention provides one possible implementation of the first aspect, wherein the guide member is a guide slider.

[0013] In conjunction with the first aspect, the present invention provides one possible implementation of the first aspect, wherein the above-mentioned cholangioscope body is provided with a water injection channel.

[0014] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the above-mentioned cholangioscope body has a visual module and an illumination module.

[0015] Beneficial effects: This invention provides a cholangioscope with an external attachment channel, comprising a cholangioscope body and an external attachment; the cholangioscope body has an external attachment channel that communicates with the operating channel of the cholangioscope body; one end of the external attachment channel extends to the handle of the cholangioscope body, and the other end extends to the front end of the cholangioscope body, and the cholangioscope body has a blocking member at the front end of the external attachment channel; one end of the external attachment is slidably disposed in the operating channel, and the other end can be connected to the operating instrument.

[0016] Specifically, an external access channel is provided on the outer wall of the cholangioscope body. During use, medical personnel fix one end of the external accessory to the operating instrument, and slide the other end into the external access channel through the entrance located at the handle of the cholangioscope body. Then, the operating instrument is pushed until the front end of the operating instrument reaches the designated position. This design allows the size of the operating instrument used inside the bile duct to exceed the limitations of the cholangioscope operating channel, enabling medical personnel to use larger operating instruments inside the bile duct, which facilitates related surgeries. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the front end of a cholangioscope with an external access channel provided in an embodiment of the present invention; Figure 2 A schematic diagram of the outer side of a cholangioscope with an external access channel provided in an embodiment of the present invention; Figure 3 A cross-section of a cholangioscope with an external access channel provided in an embodiment of the present invention, located at the external access channel; Figure 4 A schematic diagram of an external attachment in a cholangioscope with an external channel provided in an embodiment of the present invention; Figure 5 A cross-sectional view of a cholangioscope with an external access channel installed with an external attachment, as provided in an embodiment of the present invention. Figure 6 A schematic diagram showing the connection of multiple guide members in a cholangioscope with an external access channel provided in an embodiment of the present invention; Figure 7 This is a schematic diagram illustrating the installation of operating instruments via an external attachment on a cholangioscope with an external access channel, as provided in an embodiment of the present invention. Figure 8 A schematic diagram of a cholangioscope with an external access channel being opened when a water injection channel is provided in an embodiment of the present invention. Figure 9 The cross-section of the cholangioscope with an external channel provided in the embodiment of the present invention at the external channel when the water injection channel is opened; Figure 10 This is a schematic diagram illustrating the use of the cholangioscope with an external access channel provided in an embodiment of the present invention.

[0019] icon: 100-Choledochoscopic body; 101-Water injection channel; 102-Visual module; 103-Illumination module; 110-External channel; 120-Blocking component; 200 - External attachment; 210 - Guide component; 220 - Connector; 221 - Connecting side plate; 222 - Connecting seat; 230 - Support guide wire; 300 - Operating instruments. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0025] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, this embodiment provides a cholangioscope with an external access channel, including a cholangioscope body 100 and an external access component 200; the cholangioscope body 100 has an external access channel 110; one end of the external access channel 110 extends to the handle of the cholangioscope body 100, and the other end extends to the front end of the cholangioscope body 100, and the cholangioscope body 100 has a blocking member 120 at the front end of the external access channel 110; one end of the external access component 200 is slidably disposed in the external access channel 110, and the other end can be connected to the operating instrument 300.

[0026] Specifically, an external access channel 110 is provided on the outer wall of the cholangioscope body 100. In use, medical personnel fix one end of the external attachment 200 to the operating instrument 300, and slide the other end, located at the inlet at the handle of the cholangioscope body 100, into the external access channel 110. Then, the operating instrument 300 is pushed until the front end of the operating instrument 300 reaches the designated position. Through this setting, the size of the operating instrument 300 used in the bile duct can break through the limitation of the cholangioscope operating channel, allowing medical personnel to use a larger size operating instrument 300 in the bile duct, which is convenient for medical personnel to perform related surgeries.

[0027] It should be noted that a water injection channel 101 can be provided on the cholangioscope body 100. Water can be injected into the bile duct using the water injection channel 101, or the guidewire can be used in conjunction with the water injection channel 101 when a guidewire is used. Alternatively, if there are strict requirements regarding the diameter of the cholangioscope body 100, the water injection channel 101 can be omitted, thus allowing the cholangioscope body 100 to have the smallest possible outer diameter.

[0028] Furthermore, the cholangioscope body 100 has a visual module 102 and an illumination module 103, enabling medical personnel to observe the internal condition of the bile duct through the cholangioscope body 100, thus facilitating subsequent surgical procedures. The water injection channel 101 and the illumination module 103 are located on both sides of the visual module 102.

[0029] It should be noted that the diameter of the portion of the existing cholangioscope body 100 located within the bile duct is between 3.1 and 4.2 mm, while the diameter of the internal operating channel, i.e., the forceps channel, is generally between 1.2 and 2.1 mm. This limits the size of the instruments 300 used with the cholangioscope to below 2 mm. In contrast, the operating channel of a 12.6 Fr duodenoscope has a diameter of 4.2 mm, and that of a 16.5 Fr duodenoscope has a diameter of 5.5 mm. Therefore, the operating channel of the duodenoscope has sufficient space to accommodate instruments 300 with larger diameters. The cholangioscope with an external mounting channel provided in this embodiment allows the operating instrument 300 to be mounted on the outside of the cholangioscope body 100 via the external mounting component 200 by opening the external mounting channel 110. Therefore, the size of the cholangioscope body 100 can be reduced, ensuring that the external mounting channel 110 of the cholangioscope body 100 can accommodate the guide component 210 of the external mounting component 200. This greatly reduces the diameter and space occupied by the cholangioscope body 100, leaving more space to accommodate the operating instrument 300. Thus, it is possible to use a large-sized operating instrument 300 in conjunction with the cholangioscope.

[0030] It should also be noted that, through the setting of the external channel 110 and the external attachment 200 in the cholangioscope with external channel provided in this embodiment, the cholangioscope body 100 can be reduced from the existing 4mm to less than 2mm, providing more space in the operating channel of the duodenoscope for medical devices.

[0031] Neither end of the external channel 110 penetrates the cholangioscope body 100 along its extension direction, so as to ensure that the external accessory 200 can enter the external channel 110 from the inlet near the handle of the cholangioscope body 100 and will not slide out from the front end of the cholangioscope body 100.

[0032] In addition, a blocking member 120 is provided at the front end of the cholangioscope body 100. The blocking member 120 can be a side wall structure of the cholangioscope body 100, or the blocking member 120 can be an external blocking ring. The blocking ring is located at the front end of the cholangioscope body 100 and is made of metal reinforcing ring. This setting further improves the strength of the cholangioscope body 100 and avoids damage to the front end of the cholangioscope body 100 caused by the external attachment 200 after long-term use.

[0033] See Figures 1-10 As shown, in the optional embodiment, the external attachment 200 includes a guide 210 and a connector 220; the guide 210 and the connector 220 are connected to each other, the guide 210 is slidably disposed in the external attachment channel 110, and the connector 220 is connected to the operating device 300.

[0034] Specifically, the external attachment 200 includes a guide 210 and a connector 220. The guide 210 is slidably disposed within the external attachment channel 110, and the guide 210 can only enter from the entrance of the external attachment channel 110 and cannot leave the external attachment channel 110 through the gaps in the external attachment channel 110.

[0035] In addition, the guide 210 slides within the external channel 110, one end of the connector 220 is connected to the guide 210, and the other end can be connected to the operating device 300. The connector 220 and the operating device 300 can be bonded, snapped or threaded. Those skilled in the art can choose different connection methods according to the actual situation, which will not be elaborated here.

[0036] The connector 220 and the guide 210 can be an integral structure.

[0037] See Figures 1-10 As shown, in the optional scheme of this embodiment, there are multiple guide members 210 and multiple connectors 220, and the guide members 210 and the connectors 220 are connected in a one-to-one correspondence.

[0038] Specifically, the guide 210 and the connector 220 are used in a one-to-one correspondence, and there are multiple of them. During the operation, the operating instrument 300 is equipped with multiple external attachments 200 to ensure the stability of the operating instrument 300.

[0039] In addition, when the external attachment 200 at the foremost end of the operating instrument 300 comes into contact with the blocking member 120, the front end of the operating instrument 300 can protrude from the front end of the cholangioscope body 100 to ensure the normal operation of the operating instrument 300.

[0040] See Figures 1-10 As shown, in an optional embodiment, a support guide wire 230 is provided between multiple guide members 210.

[0041] Among them, the guide component 210 can be a guide slider.

[0042] Specifically, a support guide wire 230 is provided between multiple guide members 210. The support guide wire 230 connects the multiple guide members 210 into a whole, ensuring that the operating instrument 300 moves smoothly into the bile duct along the cholangioscope body 100 and avoids jamming.

[0043] Among them, the support guide wire 230 is a metal guide wire.

[0044] See Figures 1-10As shown, in the optional embodiment, the connector 220 includes a connecting side plate 221 and a connecting seat 222; one end of the connecting seat 222 is connected to the guide 210 through the connecting side plate 221, and the other end is connected to the operating device 300.

[0045] Specifically, the connecting seat 222 of the connector 220 is connected to the guide 210 through the connecting side plate 221, and the connecting side plate 221 can slide within the external channel 110.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cholangioscope with an external access channel, characterized in that, include: The cholangioscope body (100) and the external attachment (200); The cholangioscope body (100) is provided with an external access channel (110); One end of the external channel (110) extends to the handle of the cholangioscope body (100), and the other end extends to the front end of the cholangioscope body (100). The cholangioscope body (100) has a blocking member (120) located at the front end of the external channel (110). One end of the external attachment (200) is slidably disposed within the external attachment channel (110), and the other end can be connected to the operating device (300).

2. The cholangioscope with an external access channel according to claim 1, characterized in that, The blocking member (120) is a blocking ring, which is disposed at the front end of the cholangioscope body (100).

3. The cholangioscope with an external access channel according to claim 2, characterized in that, The blocking ring is made of metal reinforcement.

4. The cholangioscope with an external access channel according to claim 1, characterized in that, The external attachment (200) includes a guide (210) and a connector (220); The guide (210) is connected to the connector (220), the guide (210) is slidably disposed in the external channel (110), and the connector (220) is connected to the operating device (300).

5. The cholangioscope with an external access channel according to claim 4, characterized in that, There are multiple guide members (210) and multiple connectors (220), and the guide members (210) and the connectors (220) are connected one-to-one.

6. The cholangioscope with an external access channel according to claim 4, characterized in that, A support guide wire (230) is provided between the plurality of guide members (210).

7. The cholangioscope with an external access channel according to claim 4, characterized in that, The connector (220) includes a connecting side plate (221) and a connecting seat (222); One end of the connecting seat (222) is connected to the guide (210) through the connecting side plate (221), and the other end is connected to the operating device (300).

8. The cholangioscope with an external access channel according to claim 7, characterized in that, The guide component (210) adopts a guide slider.

9. The cholangioscope with an external access channel according to any one of claims 1-8, characterized in that, The cholangioscope body (100) has a water injection channel (101).

10. The cholangioscope with an external access channel according to any one of claims 1-8, characterized in that, The cholangioscope body (100) has a visual module (102) and an illumination module (103).

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