Endoscope device and medical instrument

Abstract

Provided in the present disclosure are an endoscope device and a medical instrument. The endoscope device comprises a handle portion and an insertion portion, wherein the handle portion is provided with an instrument channel, a guide wire channel and a liquid intake channel; the insertion portion comprises a multi-cavity tube, which comprises an instrument hole, a liquid intake hole and a guide wire hole; the instrument hole is in communication with the instrument channel, the liquid intake hole is in communication with the liquid intake channel, and the guide wire hole is in communication with the guide wire channel; a consumable instrument enters a target position through the instrument channel; a guide wire enters the target position through the guide wire channel; liquid enters the target position through the liquid intake channel; and the instrument channel, the guide wire channel and the liquid intake channel are independently provided.

Description

Endoscopic devices and medical equipment Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to an endoscope device and a medical device. Background Art

[0002] In gastroenterology surgery, transoral choledochoscopy is a frequently used medical device that can be used to treat bile and pancreatic duct lesions, such as bile duct stones, cholangitis, bile duct tumors, and pancreatitis.

[0003] The existing oral choledochoscope needs to be used in conjunction with a duodenoscope. The choledochoscope includes an instrument channel, a liquid inlet channel, a suction channel, etc., and has many pipes and cables. The pipes and cables of the existing choledochoscope are arranged unreasonable, making the handle of the choledochoscope larger in size. In addition, the pipes and cables will affect each other after being led out of the handle, making operation inconvenient.

[0004] Existing transoral choledochoscopes include a handle and an insertion section. The insertion section includes a multi-lumen tube, and the handle includes an instrument channel. The instrument channel is connected to one of the lumens of the multi-lumen tube, and surgical instruments enter the target location through the instrument channel. Currently, the instrument channel is connected to the multi-lumen tube by providing an outlet on the rear side of the multi-lumen tube, and the instrument channel communicates with the lumen inside the multi-lumen tube through the outlet on the rear side of the multi-lumen tube. Because the axis of the rear outlet of the multi-lumen tube is at a certain angle to the axis of the internal lumen of the multi-lumen tube, there will be obstacles when surgical instruments enter the multi-lumen tube. Summary of the Invention

[0005] The present disclosure provides an endoscope device and a medical instrument.

[0006] According to one aspect of the present disclosure, an endoscope device is provided, which includes a handle portion and an insertion portion, the handle portion being provided with an instrument channel, a guidewire channel and a liquid inlet channel; the insertion portion comprising a multi-lumen tube, the multi-lumen tube comprising an instrument hole, a liquid inlet hole and a guidewire hole; wherein the instrument hole is communicated with the instrument channel, the liquid inlet hole is communicated with the liquid inlet channel, and the guidewire hole is communicated with the guidewire channel; consumable instruments enter the target position via the instrument channel; the guidewire enters the target position via the guidewire channel; and the liquid enters the target position via the liquid inlet channel; wherein the instrument channel, the guidewire channel and the liquid inlet channel are arranged independently of each other.

[0007] According to the endoscope device of at least one embodiment of the present disclosure, the instrument channel also includes a suction port, which is connected to the interior of the instrument channel, and the suction port is connected to one end of a suction tube, and the other end of the suction tube is led out from one side of the handle part and near the rear end.

[0008] According to the endoscope device of at least one embodiment of the present disclosure, the liquid inlet channel is connected to one end of the liquid inlet tube, and the other end of the liquid inlet tube is led out from one side of the handle portion and close to the rear end.

[0009] According to the endoscope device of at least one embodiment of the present disclosure, the entrance of the instrument channel is located on the other side of the handle portion and close to the rear end.

[0010] According to the endoscope device of at least one embodiment of the present disclosure, the inlet of the guidewire channel is located on the other side of the handle portion and in front of the inlet of the instrument channel.

[0011] According to at least one embodiment of the present disclosure, the endoscopic device further includes an instrument adapter, one end of which is connected to the multi-lumen tube, and the other end of which is connected to the instrument channel through a first hose, so that the instrument channel is connected to the instrument hole of the multi-lumen tube.

[0012] According to the endoscope device of at least one embodiment of the present disclosure, the instrument adapter is connected to the rear end of the multi-lumen tube by glue-dotting.

[0013] According to at least one embodiment of the endoscope device of the present disclosure, it also includes a guidewire adapter, one end of which is connected to the multi-lumen tube, and the other end of which is connected to the guidewire channel through a second hose, so that the guidewire channel is connected to the guidewire hole of the multi-lumen tube.

[0014] According to the endoscope device of at least one embodiment of the present disclosure, the guidewire adapter is connected to the rear end of the multi-lumen tube by glue-dotting.

[0015] According to the endoscope device of at least one embodiment of the present disclosure, a through hole is formed in the side wall of the multi-lumen tube, the through hole is connected to the liquid inlet channel, and the liquid inlet channel is connected to the liquid inlet hole of the multi-lumen tube through the through hole.

[0016] According to at least one embodiment of the endoscope device disclosed herein, the central axis of the instrument hole does not coincide with the central axis of the multi-lumen tube; and the guide wire hole and the liquid inlet hole are respectively located on both sides of the instrument hole.

[0017] According to the endoscopic device of at least one embodiment of the present disclosure, the diameter of the instrument hole is equal to or slightly larger than the radius of the multi-lumen tube.

[0018] According to the endoscope device of at least one embodiment of the present disclosure, the diameter of the liquid inlet and / or the guide wire hole is 1 / 3 to 1 / 4 of the radius of the multi-lumen tube.

[0019] According to another aspect of the present disclosure, a medical device is provided, which includes a handle portion and an insertion portion, the insertion portion including a multi-lumen tube, the multi-lumen tube including a plurality of lumens extending and penetrating along its length; one of the plurality of lumens is an instrument hole, and the rear portion of the multi-lumen tube is located inside the handle portion; the handle portion is provided with an instrument channel, and the instrument channel is connected to the rear end of the multi-lumen tube through an instrument adapter, so that the instrument hole of the multi-lumen tube is communicated with the interior of the instrument channel; wherein the axial direction of the internal channel of the instrument adapter is consistent with the axial direction of the instrument hole.

[0020] According to the medical device of at least one embodiment of the present disclosure, the device adapter is connected to the rear end of the multi-lumen tube by glue-dispensing connection.

[0021] According to the medical device of at least one embodiment of the present disclosure, the outer diameter of one end of the instrument adapter is less than or equal to the inner diameter of the instrument hole, and the one end of the instrument adapter is inserted into the instrument hole.

[0022] According to the medical device of at least one embodiment of the present disclosure, the instrument adapter is connected to the instrument channel through a first hose, the outer diameter of the other end of the instrument adapter is less than or equal to the inner diameter of the first hose, the other end of the instrument adapter is inserted into the first hose, and the instrument adapter and the first hose are connected by a dispensing connection.

[0023] According to the medical device of at least one embodiment of the present disclosure, the handle portion is further provided with a guidewire channel, and the guidewire channel and the instrument channel are provided independently of each other.

[0024] According to the medical device of at least one embodiment of the present disclosure, another of the multiple lumens of the multi-lumen tube is a guidewire hole, and the guidewire channel is connected to the guidewire hole of the multi-lumen tube through a guidewire adapter, wherein the guidewire adapter is connected to the rear end of the multi-lumen tube by a glue-dispensing connection.

[0025] According to the medical device of at least one embodiment of the present disclosure, the outer diameter of one end of the guidewire adapter is less than or equal to the inner diameter of the guidewire hole, and the one end of the guidewire adapter is inserted into the guidewire hole.

[0026] According to the medical device of at least one embodiment of the present disclosure, the guidewire adapter is connected to the guidewire channel through a second hose, the outer diameter of the other end of the guidewire adapter is less than or equal to the inner diameter of the second hose, the other end of the guidewire adapter is inserted into the second hose, and the guidewire adapter and the second hose are connected by dispensing.

[0027] According to the medical device of at least one embodiment of the present disclosure, the device adapter and / or the guidewire adapter includes a stainless steel tube.

[0028] According to the medical device of at least one embodiment of the present disclosure, the diameter of the guidewire hole is 1 / 3 to 1 / 4 of the radius of the multi-lumen tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0030] FIG1 is a schematic structural diagram of an endoscope device according to one embodiment of the present disclosure.

[0031] FIG2 is a schematic diagram of the internal structure of an endoscope device according to an embodiment of the present disclosure.

[0032] 3 and 4 are schematic diagrams of the connection structure of a multi-lumen tube, an instrument channel, and a guidewire channel according to one embodiment of the present disclosure.

[0033] FIG5 is an enlarged schematic diagram of portion A of FIG4 .

[0034] FIG6 is a schematic structural diagram of a multi-lumen tube according to one embodiment of the present disclosure.

[0035] FIG7 is a schematic structural diagram of an endoscope device according to an embodiment of the present disclosure.

[0036] FIG8 is a schematic diagram of the internal structure of an endoscope device according to one embodiment of the present disclosure.

[0037] FIG9 is a schematic structural diagram of an instrument adapter according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.

[0039] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] Figure 1 is a schematic diagram of the structure of an endoscopic device according to an embodiment of the present disclosure. Figure 2 is a schematic diagram of the internal structure of an endoscopic device according to an embodiment of the present disclosure. Preferably, the endoscopic device can be a transoral choledochoscope.

[0041] As shown in Figures 1 and 2, the endoscopic device may include a handle portion 110. The handle portion 110 is configured to be easily gripped by a medical professional. The handle portion 110 includes a front end and a rear end. During surgery, the medical professional may grip the handle portion 110 with the front end facing the patient. The rear end of the handle portion 110 is positioned away from the patient, i.e., toward the medical professional.

[0042] The handle portion 110 is provided with an instrument channel 120, a guidewire channel 130, and a liquid inlet channel 140. The handle portion 110 can be formed into a structure with an upper cover and a lower cover interlocking with each other. A plurality of through-holes are formed between the upper and lower covers. At least portions of the instrument channel 120 and the guidewire channel 130 are located within the through-holes, thereby allowing the instrument channel 120 and the guidewire channel 130 to be mounted to the handle portion 110.

[0043] Consumable instruments enter the target location through the instrument channel 120. The guidewire enters the target location through the guidewire channel 130. Liquid enters the target location through the liquid inlet channel 140 and cleans the target location with the liquid. Preferably, the instrument channel 120, the guidewire channel 130, and the liquid inlet channel 140 are provided independently of each other.

[0044] 1 , the entrance of the instrument channel 120 is located on the other side of the handle 110 and near the rear end. The entrance of the guidewire channel 130 is located on the other side of the handle 110 and in front of the entrance of the instrument channel 120 .

[0045] The endoscope device may further include an insertion portion. The insertion portion includes a multi-lumen tube 150. When using the endoscope device of the present disclosure to examine or perform surgery on a patient, the front end (one end) of the multi-lumen tube 150 can be inserted into the location of a lesion within the patient's body, and the rear end of the multi-lumen tube 150 is inserted into the front end of the handle portion 110 and restrained by the handle portion 110.

[0046] That is, at least a portion of the multi-lumen tube 150 is located inside the front end of the handle 110 . Preferably, the central axis direction of the multi-lumen tube 150 is the front-to-back direction of the handle 110 .

[0047] By setting the positions of the instrument channel 120 and the guidewire channel 130 of the present invention, it is convenient to send the consumable instrument to the target position through the instrument channel 120, and it is also convenient to send the guidewire to the target position. Since the consumable instrument has a large diameter and is not easily deformed, it is necessary to arrange the instrument channel 120 at a position farther away from the rear end of the multi-lumen tube 150. Considering that the guidewire has a small diameter and can be deformed, the guidewire channel 130 can be arranged at a position closer to the rear end of the multi-lumen tube 150.

[0048] More preferably, the angle between the forward direction of the multi-lumen tube 150 and the central axis of the instrument channel 120 is set to be an obtuse angle. Preferably, the obtuse angle can be about 135°-155°, for example, the obtuse angle can be selected to be 145°.

[0049] Figures 3 and 4 are schematic diagrams of the connection structure between a multi-lumen tube, an instrument channel, and a guidewire channel according to one embodiment of the present disclosure. As shown in Figures 3 and 4, to achieve the connection between instrument channel 120 and multi-lumen tube 150, the endoscopic device also includes an instrument adapter 121. One end of instrument adapter 121 is connected to multi-lumen tube 150, and the other end of instrument adapter 121 is connected to instrument channel 120 via a first flexible tube 122, thereby connecting instrument channel 120 to instrument aperture 151 of multi-lumen tube 150.

[0050] The instrument adapter 121 can be made of materials such as stainless steel. This prevents deformation during actual use. The instrument adapter 121 can be formed into a tubular structure. The outer diameter of one end of the instrument adapter 121 is less than or equal to the inner diameter of the instrument aperture 151, allowing it to be inserted into the instrument aperture 151 and thereby connect the instrument adapter 121 to the multi-lumen tube 150.

[0051] In one embodiment, the portion of the instrument adapter 121 that contacts the instrument hole 151 can be coated with glue, so that the instrument adapter 121 can be connected to the multi-lumen tube by dispensing glue.

[0052] The instrument adapter 121 is provided so that the instrument hole 151 of the multi-lumen tube 150 is in communication with the interior of the instrument channel 120. The axial direction of the internal channel of the instrument adapter 121 is consistent with the axial direction of the instrument hole 151.

[0053] The instrument channel 120 and the instrument adapter 121 are smoothly connected by the first hose 122. The tangent direction of the connection between the first hose 122 and the instrument channel 120 is the same as the central axis direction of the instrument channel 120. The tangent direction of the connection between the first hose 122 and the instrument adapter 121 is the front-to-back direction.

[0054] The outer diameter of the instrument adapter 121 is equal to or smaller than the inner diameter of the first hose 122. The other end of the instrument adapter 121 is inserted into the first hose 122. The instrument adapter and the first hose 122 are connected by a dispensing adhesive. Specifically, the front end of the first hose 122 is connected to the rear end of the instrument adapter 121. The rear end of the first hose 122 can be inserted into the instrument channel 120.

[0055] To prevent deformation of the first flexible tube 122 during insertion of consumables and instruments, the endoscopic device further includes a retaining portion 123. The retaining portion 123 can be disposed within the handle 110. More preferably, the retaining portion 123 can be integrally formed with the handle 110. The retaining portion 123 can retain the first flexible tube 122, thereby minimizing deformation of the first flexible tube 122.

[0056] The angle between the forward direction of the multi-lumen tube 150 and the central axis of the guidewire channel 130 is set to an obtuse angle. Preferably, the obtuse angle can be about 125°-145°. For example, the obtuse angle can be selected to be 135°. Since the angle between the instrument channel 120 and the guidewire channel 130 is small, the angle between the rear end face of the guidewire channel 130 and the instrument channel 120 is also small, thereby facilitating medical personnel to simultaneously insert objects such as consumable instruments and guidewires.

[0057] In the present disclosure, in order to achieve the connection between the guidewire channel 130 and the multi-lumen tube 150, the endoscopic device further includes a guidewire adapter 131. One end of the guidewire adapter 131 is connected to the multi-lumen tube 150, and the other end of the guidewire adapter 131 is connected to the guidewire channel 130 through a second hose 132, so that the guidewire channel 130 is connected to the guidewire hole 153 of the multi-lumen tube 150.

[0058] The guidewire adapter 131 can be made of materials such as stainless steel, so that it will not deform during actual use. The guidewire adapter 131 can be formed into a tubular structure. The outer diameter of one end of the guidewire adapter 131 is less than or equal to the inner diameter of the guidewire hole 153, and accordingly, the end can be inserted into the guidewire hole 153, thereby connecting the guidewire adapter 131 to the multi-lumen tube 150.

[0059] The portion of the guidewire adapter 131 that contacts the guidewire hole 153 can be coated with glue, allowing the guidewire adapter 131 to be connected to the multi-lumen tube by dispensing glue. The arrangement of the guidewire adapter 131 allows the guidewire hole 153 of the multi-lumen tube 150 to communicate with the interior of the guidewire channel 130. The axial direction of the internal channel of the guidewire adapter 131 is consistent with the axial direction of the guidewire hole 153.

[0060] The guidewire channel 130 and the guidewire adapter 131 are smoothly connected by a second hose 132. The tangential direction of the connection between the second hose 132 and the guidewire channel 130 is the same as the central axis direction of the guidewire channel 130. The tangential direction of the connection between the second hose 132 and the guidewire adapter 131 is the front-to-back direction. The outer diameter of the guidewire adapter 131 is less than or equal to the inner diameter of the second hose 132. The other end of the guidewire adapter 131 is inserted into the second hose 132, and the guidewire adapter 131 and the second hose 132 are connected by a dispensing glue connection.

[0061] The structure of the multi-lumen tube 150 will be described below with reference to the accompanying drawings. Figure 5 is an enlarged schematic diagram of section A of Figure 4. Figure 6 is a schematic structural diagram of a multi-lumen tube according to one embodiment of the present disclosure.

[0062] As shown in Figures 5 and 6, the multi-lumen tube 150 includes an instrument hole 151, a liquid inlet hole 152, and a guidewire hole 153. The instrument hole 151 is connected to the instrument channel 120, the liquid inlet hole 152 is connected to the liquid inlet channel 140, and the guidewire hole 153 is connected to the guidewire channel 130.

[0063] The multi-lumen tube 150 of the present disclosure is provided with only one instrument hole 151, one liquid inlet hole 152, and one guidewire hole 153. This changes the conventional arrangement of the multi-lumen tube 150, which includes one working channel and two water supply channels. In this case, the size of the liquid inlet hole 152 of the multi-lumen tube 150 can be increased to ensure that the amount of liquid delivered through the liquid inlet hole 152 meets the required amount. Thus, the multi-lumen tube 150 of the present disclosure can achieve the function of an independent guidewire while maintaining the water supply capacity.

[0064] The liquid inlet channel 140 is connected to one end of the liquid inlet tube, and the other end of the liquid inlet tube is led out from one side of the handle portion 110 and near the rear end.

[0065] In one embodiment, a through hole is formed in the sidewall of the multi-lumen tube 150. The through hole communicates with the liquid inlet channel 140, which in turn communicates with the liquid inlet hole 152 of the multi-lumen tube 150 through the through hole, thereby allowing liquid to enter the liquid inlet hole 152 of the multi-lumen tube 150. The liquid inlet structure of the multi-lumen tube 150 is described in detail in Chinese Utility Model Patent CN219071531U. The structure of the present disclosure can adopt a similar structure and will not be repeated here.

[0066] The central axis of the instrument hole 151 does not coincide with the central axis of the multi-lumen tube 150. The guidewire hole 153 and the liquid inlet 152 are located on either side of the instrument hole 151. More preferably, the diameter of the instrument hole 151 is equal to or slightly larger than the radius of the multi-lumen tube 150 to meet the insertion requirements of consumable instruments. The diameter of the liquid inlet 152 and / or the guidewire hole 153 can be 1 / 3 to 1 / 4 of the radius of the multi-lumen tube 150.

[0067] The instrument channel 120 may further include a suction port 124. The suction port 124 is connected to the interior of the instrument channel. The suction port is also connected to one end of a suction tube. The other end of the suction tube extends from one side of the handle portion 110 near the rear end. A suction port 124 may be formed on the sidewall of the instrument channel 120. The suction tube is connected to the suction port 124 extending from the instrument channel 120, so that the inlet of the guidewire channel 130 and the inlet of the instrument channel 120 are located on one side of the handle. The inlet of the liquid inlet and the outlet of the suction tube are located on the other side of the handle.

[0068] According to a further embodiment of the present disclosure, a medical device is provided. FIG7 is a schematic structural diagram of a medical device according to an embodiment of the present disclosure. FIG8 is a schematic internal structural diagram of a medical device according to an embodiment of the present disclosure. The medical device may be a transoral choledochoscope (endoscope). As shown in FIG7 and FIG8 , the medical device may include a handle portion 110. The handle portion 110 is configured to be a shape that is convenient for medical staff to hold. The handle portion 110 includes a front end and a rear end. During the process of medical staff performing surgery on a patient, the medical staff can hold the handle portion 110 with the front end of the handle portion 110 facing the patient. The rear end of the handle portion 110 is away from the patient, that is, facing the medical staff.

[0069] The handle portion 110 is provided with an instrument channel 120, a guidewire channel 130, and a liquid inlet channel 140. The handle portion 110 can be formed into a structure with an upper cover and a lower cover interlocking with each other. A plurality of through-holes are formed between the upper and lower covers. At least portions of the instrument channel 120 and the guidewire channel 130 are located within the through-holes, thereby allowing the instrument channel 120 and the guidewire channel 130 to be mounted to the handle portion 110.

[0070] Consumable instruments enter the target location through the instrument channel 120. Guidewires enter the target location through the guidewire channel 130. Liquid enters the target location through the liquid inlet channel 140 and cleans the target location. Preferably, the instrument channel 120, the guidewire channel 130, and the liquid inlet channel 140 are independently provided.

[0071] As shown in FIG7 , the instrument channel 120 is located on the other side of the handle portion 110 and near the rear end thereof. The guidewire channel 130 is located on the other side of the handle portion 110 and in front of the instrument channel 120 .

[0072] The medical device may also include an insertion portion. This insertion portion includes a multi-lumen tube 150. When the medical device is used to examine or perform surgery on a patient, the front end (one end) of the multi-lumen tube 150 can be inserted into the location of a lesion within the patient's body. The rear end of the multi-lumen tube 150 is inserted into the front end of the handle 110 and is restrained by the handle 110. The rear end of the multi-lumen tube 150 is located within the handle 110.

[0073] At least a portion of the multi-lumen tube 150 is located inside the front end of the handle 110. Preferably, the central axis direction of the multi-lumen tube 150 is the front-to-back direction of the handle 110.

[0074] By setting the positions of the instrument channel 120 and the guidewire channel 130 of the present invention, it is convenient to send the consumable instrument to the target position through the instrument channel 120, and it is also convenient to send the guidewire to the target position. Since the consumable instrument has a large diameter and is not easily deformed, it is necessary to arrange the instrument channel 120 at a position farther away from the rear end of the multi-lumen tube 150. Considering that the guidewire has a small diameter and can be deformed, the guidewire channel 130 can be arranged at a position closer to the rear end of the multi-lumen tube 150.

[0075] The angle between the forward direction of the multi-lumen tube 150 and the central axis of the instrument channel 120 is set to be an obtuse angle. Preferably, the obtuse angle can be about 135°-155°, for example, the obtuse angle can be selected to be 145°.

[0076] The schematic diagram of the connection structure of the multi-lumen tube, the instrument channel and the guidewire channel of the medical device of this embodiment can be referred to Figure 3. Figure 9 is a schematic diagram of the structure of the instrument adapter according to one embodiment of the present disclosure.

[0077] As shown in Figures 3 and 9, in order to achieve the connection between the instrument channel 120 and the multi-lumen tube 150, the medical device also includes an instrument adapter 121, one end of the instrument adapter 121 is connected to the multi-lumen tube 150, and the other end of the instrument adapter 121 is connected to the instrument channel 120 through a first hose 122, so that the instrument channel 120 is connected to the instrument hole 151 of the multi-lumen tube 150.

[0078] The instrument adapter 121 can be made of materials such as stainless steel. During actual use, the instrument adapter 121 will not deform. The instrument adapter 121 can be formed into a tubular structure, with the outer diameter of one end of the instrument adapter 121 being less than or equal to the inner diameter of the instrument aperture 151. Accordingly, this end can be inserted into the instrument aperture 151, thereby achieving a connection between the instrument adapter 121 and the multi-lumen tube 150.

[0079] The portion of the instrument adapter 121 that contacts the instrument hole 151 can be coated with glue, so that the instrument adapter 121 can be connected to the multi-lumen tube by dispensing glue.

[0080] The instrument adapter 121 is provided so that the instrument hole 151 of the multi-lumen tube 150 is in communication with the interior of the instrument channel 120. The axial direction of the internal channel of the instrument adapter 121 is consistent with the axial direction of the instrument hole 151.

[0081] The first hose 122 smoothly connects the instrument channel 120 and the instrument adapter 121. The tangent direction of the connection between the first hose 122 and the instrument channel 120 can be the same as the central axis direction of the instrument channel 120. The tangent direction of the connection between the first hose 122 and the instrument adapter 121 is the front-to-back direction.

[0082] The outer diameter of the instrument adapter 121 is smaller than or equal to the inner diameter of the first hose 122 . The other end of the instrument adapter 121 is inserted into the first hose 122 . The instrument adapter and the first hose 122 are connected by glue dispensing.

[0083] The front end of the first hose 122 is connected to the rear end of the instrument adapter 121 . The rear end of the first hose 122 can be inserted into the instrument channel 120 .

[0084] To prevent deformation of the first hose 122 during insertion of the consumable device, the medical device further includes a retaining portion 123. The retaining portion 123 can be disposed within the handle 110. More preferably, the retaining portion 123 can be integrally formed with the handle 110. The retaining portion 123 can hold the first hose 122, thereby minimizing deformation of the first hose 122.

[0085] In the present disclosure, the angle between the forward direction of the multi-lumen tube 150 and the central axis of the guidewire channel 130 is set to an obtuse angle. Preferably, the obtuse angle can be about 125°-145°, for example, the obtuse angle can be selected to be 135°. Since the angle between the instrument channel 120 and the guidewire channel 130 is small, the angle between the guidewire channel 130 and the rear end face of the instrument channel 120 is also small, thereby facilitating medical personnel to simultaneously insert objects such as consumable instruments and guidewires.

[0086] In the present disclosure, in order to achieve the connection between the guidewire channel 130 and the multi-lumen tube 150, the medical device also includes a guidewire adapter 131, one end of the guidewire adapter 131 is connected to the guidewire hole 153 of the multi-lumen tube 150, and the other end of the guidewire adapter 131 is connected to the guidewire channel 130 through a second hose 132, so that the guidewire channel 130 is connected to the guidewire hole 153 of the multi-lumen tube 150.

[0087] The structure of the guidewire adapter 131 disclosed herein is similar to that of the instrument adapter 121, and its structure is not shown here in the form of drawings. The guidewire adapter 131 can be made of materials such as stainless steel. Therefore, during actual use, the guidewire adapter 131 will not be deformed. The guidewire adapter 131 can be formed into a tubular structure, the outer diameter of one end of which is less than or equal to the inner diameter of the guidewire hole 153, and accordingly, the end can be inserted into the guidewire hole 153, thereby connecting the guidewire adapter 131 to the multi-lumen tube 150.

[0088] The portion of the guidewire adapter 131 that contacts the guidewire hole 153 can be coated with glue, so that the guidewire adapter 131 can be connected to the multi-lumen tube by dispensing glue.

[0089] Thus, by providing the guidewire adapter 131, the guidewire hole 153 of the multi-lumen tube 150 is connected to the inside of the guidewire channel 130. The axial direction of the internal channel of the guidewire adapter 131 is consistent with the axial direction of the guidewire hole 153.

[0090] The guidewire channel 130 and the guidewire adapter 131 are smoothly connected by the second hose 132. The tangential direction of the connection between the second hose 132 and the guidewire channel 130 is the same as the central axis direction of the guidewire channel 130. The tangential direction of the connection between the second hose 132 and the guidewire adapter 131 is the front-to-back direction.

[0091] The outer diameter of the guidewire adapter 131 is equal to or smaller than the inner diameter of the second hose 132. The other end of the guidewire adapter 131 is inserted into the second hose 132. The guidewire adapter 131 and the second hose 132 are connected by a dispensing adhesive. In the present disclosure, the front end of the second hose 132 is connected to the rear end of the guidewire adapter 131; the rear end of the second hose 132 can be inserted into the guidewire channel 130.

[0092] The structure of the multi-lumen tube 150 will be described below with reference to FIG. 6 .

[0093] In the present disclosure, as shown in FIG6 , multi-lumen tube 150 includes multiple lumens extending along its length and extending therethrough. One of the lumens is an instrument port 151, one is a guidewire port 153, and one is a liquid inlet port 152. Instrument port 151 communicates with instrument channel 120. Liquid inlet port 152 communicates with liquid inlet channel 140. Guidewire port 153 communicates with guidewire channel 130.

[0094] The multi-lumen tube 150 of the present disclosure comprises only one instrument port 151, one liquid inlet port 152, and one guidewire port 153, which differs from the conventional multi-lumen tube 150 arrangement of one working channel and two water delivery channels. The size of the liquid inlet port 152 of the present multi-lumen tube 150 can be increased to ensure that the amount of liquid delivered through the liquid inlet port 152 meets the required amount. Thus, the present multi-lumen tube 150 maintains a high water delivery capacity while also achieving the function of an independent guidewire.

[0095] The liquid inlet channel 140 is connected to one end of the liquid inlet tube, and the other end of the liquid inlet tube is led out from one side of the handle portion 110 near the rear end. In one embodiment, a through hole is formed in the sidewall of the multi-lumen tube 150, which communicates with the liquid inlet channel 140. The liquid inlet channel 140 is connected to the liquid inlet hole 152 of the multi-lumen tube 150 through the through hole, thereby allowing liquid to enter the liquid inlet hole 152 of the multi-lumen tube 150. The liquid inlet structure of the multi-lumen tube 150 is described in detail in Chinese Utility Model Patent CN219071531U. The structure of the present disclosure can adopt a similar structure and will not be repeated here.

[0096] More specifically, the central axis of the instrument hole 151 does not coincide with the central axis of the multi-lumen tube 150; and the guidewire hole 153 and the liquid inlet 152 are located on either side of the instrument hole 151. More preferably, the diameter of the instrument hole 151 is equal to or slightly larger than the radius of the multi-lumen tube 150 to meet the insertion requirements of consumable instruments.

[0097] In the present disclosure, the diameter of the liquid inlet 152 and / or the guidewire hole 153 is 1 / 3 to 1 / 4 of the radius of the multi-lumen tube 150. In a preferred embodiment, the instrument channel 120 further includes a suction port 124, which is connected to one end of a suction tube, and the other end of the suction tube is led out from one side of the handle portion 110 and near the rear end. More specifically, a suction port 124 is formed on the side wall of the instrument channel 120, and the suction tube is connected to the suction port 124 led out of the instrument channel 120, so that the inlet of the guidewire channel 130 and the inlet of the instrument channel 120 are located on one side of the handle, and the inlet of the liquid inlet tube and the outlet of the suction tube are located on the other side of the handle.

[0098] The disclosed medical device is guided out of the rear of a multi-lumen tube through an instrument channel and a guidewire channel, allowing the device and guidewire to smoothly enter the multi-lumen tube. Both the multi-lumen tube and the instrument channel are flexible tubes, and the device adapter and guidewire adapter facilitate connection between them, resolving the technical issues raised in the background art.

[0099] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. An endoscope device, comprising a handle portion and an insertion portion, characterized in that: The handle portion is provided with an instrument channel, a guidewire channel and a liquid inlet channel; the insertion portion includes a multi-lumen tube, and the multi-lumen tube includes an instrument hole, a liquid inlet hole and a guidewire hole; wherein the instrument hole is connected to the instrument channel, the liquid inlet hole is connected to the liquid inlet channel, and the guidewire hole is connected to the guidewire channel; consumable instruments enter the target position via the instrument channel; the guidewire enters the target position via the guidewire channel; and the liquid enters the target position via the liquid inlet channel; wherein the instrument channel, the guidewire channel and the liquid inlet channel are independently arranged.

2. The endoscope device according to claim 1, wherein: The instrument channel also includes a suction port, which is communicated with the interior of the instrument channel and connected to one end of a suction tube, the other end of which is led out from one side of the handle portion and close to the rear end.

3. The endoscope device according to claim 1, wherein: The liquid inlet channel is connected to one end of the liquid inlet tube, and the other end of the liquid inlet tube is led out from one side of the handle portion and close to the rear end.

4. The endoscope device according to claim 1, wherein: The entrance of the instrument channel is located at the other side of the handle portion and close to the rear end.

5. The endoscope device according to claim 1, wherein: The entrance of the guide wire channel is located at the other side of the handle portion and in front of the entrance of the instrument channel.

6. The endoscope device according to claim 1, wherein: It also includes an instrument adapter, one end of which is connected to the multi-lumen tube, and the other end of which is connected to the instrument channel through a first hose, so that the instrument channel is connected to the instrument hole of the multi-lumen tube.

7. The endoscope device according to claim 6, wherein: The instrument adapter is connected to the rear end of the multi-lumen tube by glue point connection.

8. The endoscope device according to claim 1, wherein: It also includes a guidewire adapter, one end of which is connected to the multi-lumen tube, and the other end of which is connected to the guidewire channel through a second hose, so that the guidewire channel is connected to the guidewire hole of the multi-lumen tube.

9. The endoscope device according to claim 8, characterized in that The guide wire adapter is connected to the rear end of the multi-lumen tube by glue dispensing.

10. The endoscope device according to claim 1, wherein: A through hole is formed on the side wall of the multi-lumen tube, the through hole is communicated with the liquid inlet channel, and the liquid inlet channel is communicated with the liquid inlet hole of the multi-lumen tube through the through hole.

11. The endoscope device according to claim 1, wherein: The central axis of the instrument hole does not coincide with the central axis of the multi-lumen tube; and the guide wire hole and the liquid inlet hole are respectively located on both sides of the instrument hole.

12. The endoscope device according to claim 1, wherein: The diameter of the instrument hole is equal to or slightly larger than the radius of the multi-lumen tube.

13. The endoscope device according to claim 1, wherein: The diameter of the liquid inlet hole and / or the guide wire hole is 1 / 3 to 1 / 4 of the radius of the multi-lumen tube.

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