An endoscope channel device

Abstract

The present invention provides an endoscope channel device, comprising a channel tube and a support member; the support member is disposed at the front end of the channel tube; the support member has a retracted state and an expanded state; when the support member is in the retracted state, the first end of the support member is close to the channel tube, and the front end of the channel device can pass through the instrument channel of the endoscope head end; when the support member is in the expanded state, the first end of the support member is away from the channel tube. The present invention facilitates installation and disassembly through the instrument channel during surgery, achieves the support function of the transparent cap, and reduces the pain of the patient during diagnosis.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an endoscope forceps device. Background Art

[0002] Endoscope is a commonly used detection instrument in modern medical diagnosis and treatment. It is often used for the diagnosis and treatment of parts of the body such as the ears, nose and throat, lower respiratory tract, digestive tract, urinary tract, reproductive system, abdominal cavity and chest cavity. It has the advantages of easy application, less trauma, clear diagnosis under direct vision, and easy biopsy.

[0003] For existing endoscopes, especially colonoscopes, a transparent cap is installed at the head end of the endoscope to provide an operating space for the treatment of the lesion position based on the supporting effect of the transparent cap.

[0004] A retractable transparent cap for a colonoscope is disclosed in the patent document with application number 201920025156.3. The transparent cap for a colonoscope is partially extended forward through a retractable sleeve rod to support the tissue at the lesion location. However, the extended end surface of the transparent cap is very limited, and the installation structure of the transparent cap is complicated, and the transparent cap cannot be installed and removed during the operation. It can only be installed before the operation, which increases the size of the endoscope head end, increases the patient's pain and increases the difficulty of operation. Summary of the invention

[0005] The invention provides an endoscope forceps channel device, which is used to solve or improve the problem that the existing endoscope cannot realize the installation and removal of the transparent cap during the operation.

[0006] The present invention provides an endoscope clamp channel device, comprising: a clamp channel tube and a support member; the support member is arranged at the front end of the clamp channel tube; the support member has a retracted state and an extended state; when the support member is in the retracted state, the first end of the support member is close to the clamp channel tube, and the front end of the clamp channel device can pass through the instrument channel of the end of the endoscope head; when the support member is in the extended state, the first end of the support member is away from the clamp channel tube.

[0007] An endoscopic clamp channel device provided according to the present invention also includes a traction member; the support member is rotatably arranged at the front end of the clamp channel tube, one end of the traction member is connected to the second end of the support member, and the traction member is used to drive the support member to rotate relative to the clamp channel tube so that the support member can switch between a folded state and an expanded state.

[0008] An endoscope channel device provided according to the present invention, a first end region and a second end region are defined radially at the front end of the channel tube; the support member is rotatably provided in the first end region, and a notch is provided in the second end region; when the support member is in a retracted state, the first end of the support member is received in the notch.

[0009] An endoscope channel device provided according to the present invention, when the support member is in a retracted state, the axial distance of the first end of the support member relative to the front port of the channel tube is less than the axial opening depth of the notch; and / or, when the support member is in a deployed state, the radial distance of the first end of the support member relative to the central axis of the instrument channel is greater than the radial distance of the first end of the support member relative to the central axis of the endoscope head end.

[0010] An endoscope channel device provided according to the present invention, the channel tube is provided with a first limiting portion and a second limiting portion; the support member rotates relative to the channel tube between the first limiting portion and the second limiting portion; when the support member is in a retracted state, the first side surface of the support member abuts against the first limiting portion; when the support member is in a deployed state, the second side surface of the support member can selectively abut against or separate from the second limiting portion, and the first side surface and the second side surface are opposite to each other.

[0011] An endoscope channel device provided according to the present invention, the tube wall of the channel tube is provided with a first guiding channel; the first guiding channel extends along the axial direction of the channel tube; the traction member is movably disposed in the first guiding channel, and a sealing structure is provided between the traction member and the inner wall surface of the first guiding channel.

[0012] An endoscope channel device provided according to the present invention, the support member includes: a "C"-shaped member; the "C"-shaped member has a first end and a second end; the first end and the second end are respectively disposed on the outer side of the channel tube relatively; both the first end and the second end include: a traction end and a rotating end; the traction end is away from the first end of the "C"-shaped member and is connected to one end of the traction member; the rotating end is close to the first end of the "C"-shaped member and is rotatably connected to the channel tube.

[0013] An endoscopic forceps channel device provided by the present invention, the endoscopic forceps channel device further includes a control unit; the control unit includes: an operating handle, a fixing sleeve and a locking member; the front end of the operating handle is arranged in the fixing sleeve and is connected to the rear end of the forceps channel tube; the locking member is arranged on the side wall of the fixing sleeve; the locking member has a locked state and an unlocked state. In the case where the locking member is in the locked state, the operating handle is connected to the fixing sleeve. In the case where the locking member is in the unlocked state, the operating handle is separated from the fixing sleeve so that the operating handle can move in the fixing sleeve.

[0014] An endoscopic forceps channel device provided by the present invention, a second guiding channel is arranged on the operating handle; the second guiding channel extends along the length direction of the operating handle, and the traction member is movably arranged in the second guiding channel, and the other end of the traction member extends towards the rear end of the operating handle under the guidance of the second guiding channel.

[0015] An endoscopic forceps channel device provided by the present invention, the forceps channel tube includes: a main body tube section and a rigid transparent tube section; the support member is rotatably arranged at the first end of the rigid transparent tube section, the second end of the rigid transparent tube section is connected to the first end of the main body tube section, and the second end of the main body tube section is the rear end of the forceps channel tube.

[0016] An endoscopic forceps channel device provided by the present invention, by arranging the forceps channel tube and the support member, during endoscopic treatment, the support member can be first controlled to be in a retracted state so that the front end of the forceps channel device can pass through the instrument channel at the front end of the endoscope. After the front end of the forceps channel device reaches the lesion position, the support member is switched from the retracted state to the deployed state, and the first end of the support member supports the tissue at the lesion position so that the surgical instrument passing through the forceps channel tube can perform surgery on the lesion position.

[0017] It can be seen that the present invention is convenient for installation and disassembly through the instrument channel during the operation, achieves the support function of the transparent cap, and reduces the pain of the patient during the diagnosis of the patient. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the first endoscopic forceps channel device provided by the present invention when the support member is in a retracted state;

[0020] Figure 2 is the top - view structural schematic diagram provided by the present invention Figure 1 ;

[0021] Figure 3 is the structural schematic diagram of the first endoscopic forceps channel device provided by the present invention when the support is in the deployed state;

[0022] Figure 4 is the top - view structural schematic diagram provided by the present invention Figure 3 ;

[0023] Figure 5 is the structural schematic diagram of the second endoscopic forceps channel device provided by the present invention when the support is in the retracted state;

[0024] Figure 6 is the top - view structural schematic diagram provided by the present invention Figure 5 ;

[0025] Figure 7 is the structural schematic diagram of the second endoscopic forceps channel device provided by the present invention when the support is in the deployed state;

[0026] Figure 8 is the top - view structural schematic diagram provided by the present invention Figure 7 ;

[0027] Figure 9 is the three - dimensional structural schematic diagram of the control part provided by the present invention;

[0028] Figure 10 is the cross - sectional structural schematic diagram of the control part provided by the present invention;

[0029] Figure 11 is the structural schematic diagram of the traction member and the first guiding channel in sealed cooperation provided by the present invention;

[0030] Figure 12 is one of the structural schematic diagrams of assembling the endoscopic forceps channel device provided by the present invention;

[0031] Figure 13 is another structural schematic diagram of assembling the endoscopic forceps channel device provided by the present invention;

[0032] Figure 14 is yet another structural schematic diagram of assembling the endoscopic forceps channel device provided by the present invention;

[0033] Figure 15 is the mechanism schematic diagram of inserting a surgical instrument based on Figure 14 the endoscopic forceps channel device described above;

[0034] Reference numerals:

[0035] 1: Forceps channel tube; 2: Support member; 3: Traction member;

[0036] 4: Notch; 5: Endoscope lens end; 6: Operating handle;

[0037] 7: Fixed sleeve; 8: Locking member; 9: Annular limiting groove;

[0038] 10: Sealing structure; 11: First limiting portion; 12: Second limiting portion;

[0039] 101: First guiding channel; 102: Second guiding channel; 61: Rod body portion;

[0040] 62: Operating portion; 51: Instrument channel; 13: Surgical instrument. Detailed implementation manner

[0041] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in the present invention belong to the scope of protection of the present invention.

[0042] The following will be combined with Figures 1 - 15 Describe an endoscope forceps channel device of the present invention.

[0043] As Figures 1 - 8 shown, this embodiment provides an endoscope forceps channel device, including: a forceps channel tube 1 and a support member 2; the support member 2 is arranged at the front end of the forceps channel tube 1; the support member 2 has a retracted state and an expanded state; when the support member 2 is in the retracted state, the first end of the support member 2 is close to the outer side wall of the forceps channel tube 1, and the front end of the forceps channel device can pass through the instrument channel 51 of the endoscope lens end 5; when the support member 2 is in the expanded state, the first end of the support member 2 is away from the outer side wall of the forceps channel tube 1.

[0044] Specifically, in this embodiment, by setting the forceps channel tube 1 and the support member 2, when performing treatment through an endoscope, the support member 2 can be controlled to be in the retracted state, so that the front end of the forceps channel device can pass through the instrument channel 51 of the endoscope lens end 5. After the front end of the forceps channel device reaches the lesion position in front of the instrument channel 51, the support member 2 is switched from the retracted state to the expanded state, and the tissue at the lesion position is supported based on the first end of the support member 2, facilitating surgery on the lesion position through the surgical instrument passing through the forceps channel tube 1.

[0045] It can be seen that the forceps channel device shown in this embodiment is convenient for installation and disassembly through the instrument channel 51 during the operation, achieving the supporting function of the transparent cap and reducing the pain of the patient during the diagnosis of the patient.

[0046] It should be noted here that the support member 2 shown in this embodiment can be an elastic ring. When the insertion portion is inserted into the human body, the forceps channel tube 1 and the support member 2 are hidden in the insertion tube of the endoscope. At this time, the elastic ring is in a compressed state. When a driving force is applied to the forceps channel tube 1 so that the head end of the forceps channel device passes through the instrument channel, the elastic ring automatically expands under the elastic restoring force; correspondingly, when the head end of the forceps channel device is pulled out from the instrument channel, the head end of the forceps channel tube 1 can be controlled to bend by an external force. With the auxiliary support of the tissue at the lesion position, the elastic ring can be compressed and deformed so that the head end of the forceps channel device can enter the instrument channel.

[0047] For the endoscope of this embodiment, the endoscope includes an insertion tube and an endoscope head end 5. The front end of the insertion tube is connected to the endoscope head end 5. Among them, the insertion tube is not shown in Figures 1 - 15 the figure. The endoscope forceps channel device shown in this embodiment is movably arranged in the insertion tube. At the endoscope head end 5, there are an instrument channel 51, a camera, a lighting component, etc.

[0048] At the same time, the endoscope head end 5 can be set as an integral structure or assembled by at least two assembling parts. Here, the endoscope head end 5 shown in this embodiment can be assembled by a main body part and an assembling part. The instrument channel 51 is constructed in the main body part, and the camera and the lighting component shown in the above embodiment are arranged in the assembling part. The assembling part has an assembling state and an open state relative to the main body part. When the assembling part is in the assembling state, the main body part and the assembling part are assembled into one body. When the assembling part is in the open state, the assembling part is located on one side of the main body part along the radial direction of the endoscope head end 5 to expand the caliber of the outlet end of the instrument channel 51 or provide sufficient clearance space in front of the outlet end of the instrument channel 51, facilitating surgical operations in front of the instrument channel 51 while allowing surgical instruments to enter and exit the instrument channel 51.

[0049] Furthermore, in order to facilitate the control of the switching of the support member 2 between the retracted state and the deployed state, the forceps channel device shown in this embodiment is further provided with a traction member 3. In this regard, in this embodiment, the support member 2 is rotatably arranged at the front end of the forceps channel tube 1. One end of the traction member 3 is connected to the second end of the support member 2, and the traction member 3 is used to drive the support member 2 to rotate relative to the forceps channel tube 1 so that the support member 2 switches between the retracted state and the deployed state.

[0050] Here, the traction member 3 shown in this embodiment can be understood as a traction structure with a certain rigidity. For example, the traction member 3 is a steel wire rope well-known in the art. Among them, in this embodiment, one end of the traction member 3 can be rotatably connected to the second end of the support member 2, or one end of the traction member 3 can be connected to the second end of the support member 2 through a flexible connecting member, and the other end of the traction member 3 is connected to the driving mechanism, which can be a linear motor well-known in the art.

[0051] When treating the lesion position of the human body, the endoscope head end 5 can be first controlled to reach the lesion position through the insertion tube, and then the insertion of the endoscope forceps channel device can be controlled. During the operation, the support member 2 is controlled to be in a retracted state, so that the maximum outer diameter of the front end of the forceps channel device is smaller than the inner diameter of the instrument channel 51, so that the front end of the forceps channel device can pass through the instrument channel 51 and extend to the lesion position in front of the instrument channel 51; after the front end of the forceps channel device reaches the lesion position, the support member 2 can be controlled to switch from the retracted state to the deployed state, and the tissue at the lesion position is supported by the first end of the support member 2, so as to perform surgical treatment on the lesion position.

[0052] Preferably, the support member 2 shown in this embodiment is preferably a "C"-shaped member; the "C"-shaped member has a first end and a second end. Here, the first end and the second end of the "C"-shaped member are respectively the second end of the "C"-shaped member, and the first end and the second end are oppositely disposed outside the forceps channel tube 1; both the first end and the second end include: a traction end and a rotating end; the traction end is away from the first end of the "C"-shaped member and is rotatably connected to one end of the traction member 3; the rotating end is close to the first end of the "C"-shaped member and is rotatably connected to the outer side wall of the forceps channel tube 1.

[0053] When the support member 2 is a "C"-shaped member, two traction members 3 are provided in this embodiment, and one end of each of the two traction members 3 is respectively connected to the first end and the second end of the "C"-shaped member in one-to-one correspondence. When a driving force is applied to the other ends of the two traction members 3, by controlling the synchronous movement of the other ends of the two traction members 3, it is convenient to reliably drive the "C"-shaped member to rotate relative to the forceps channel tube 1.

[0054] In one embodiment, as Figures 1 - 4 shown, the "C"-shaped member further includes an arc segment, one end of the arc segment is connected to the first end of the "C"-shaped member, and the other end of the arc segment is connected to the second end.

[0055] As Figure 1 And Figure 2As shown, when the support member 2 is in the retracted state, the vertical projection of the front end of the forceps channel device on the plane where the front port of the instrument channel is located is within the area where the front port of the instrument channel 51 is located. The maximum outer diameter of the front end of the forceps channel device is smaller than the inner diameter of the instrument channel 51, and the front end of the forceps channel device can smoothly pass through the instrument channel 51 of the endoscope head 5.

[0056] As Figure 3 shown, in order to ensure that the support member 2 can achieve a better support effect, when the support member 2 is in the deployed state, in this embodiment, the plane where the support member 2 is located is set perpendicular to the axial direction of the instrument channel.

[0057] Furthermore, as Figure 4 shown, when the support member 2 is in the deployed state, in this embodiment, it can also be set that the radial distance D11 of the first end of the support member 2 relative to the central axis O1 of the instrument channel is greater than the radial distance D12 of the first end of the support member 2 relative to the central axis O2 of the endoscope head 5, so that the vertical projection of the first end of the support member 2 on the plane where the front port of the instrument channel 51 is located is outside the area where the endoscope head 5 is located, ensuring that the support member 2 achieves a support effect on a larger range of tissues at the lesion location. Among them, the first end of the support member 2 shown in this embodiment corresponds to the middle of the arc segment. In this embodiment, it can be further set that the radial distance D12 of the first end of the support member 2 relative to the central axis O2 of the endoscope head 5 is greater than the radius of the endoscope head 5.

[0058] In another embodiment, as Figures 5 - 8 shown, the "C" - shaped member further includes a first straight segment, a second straight segment, and a third straight segment. The first end of the "C" - shaped member is connected to one end of the first straight segment, the other end of the first straight segment is connected to one end of the second straight segment, the other end of the second straight segment is connected to one end of the third straight segment, and the other end of the third straight segment is connected to the second end. Among them, the first straight segment is parallel to the third straight segment, and the first straight segment and the third straight segment are respectively perpendicular to the second straight segment.

[0059] As Figure 5 With Figure 6 shown, when the support member 2 is in the retracted state, the vertical projection of the front end of the forceps channel device on the plane where the front port of the instrument channel 51 is located is within the area where the front port of the instrument channel 51 is located. The maximum outer diameter of the front end of the forceps channel device is smaller than the inner diameter of the instrument channel 51, and the front end of the forceps channel device can smoothly pass through the instrument channel 51 of the endoscope head 5.

[0060] As Figure 7 shown, in order to ensure that the support member 2 can achieve a better support effect, when the support member 2 is in the deployed state, in this embodiment, it can also be set that the plane where the support member 2 is located is perpendicular to the axial direction of the instrument channel 51.

[0061] Further, as Figure 8 shown, when the support member 2 is in the deployed state, in this embodiment, the radial distance D21 of the first end of the support member 2 relative to the central axis O1 of the instrument channel 51 can be set to be greater than the radial distance D22 of the first end of the support member 2 relative to the central axis O2 of the endoscope tip 5, so that the vertical projection of the first end of the support member 2 on the plane where the front port of the instrument channel 51 is located is located outside the area where the endoscope tip 5 is located, ensuring that the support member 2 achieves a large-range support effect on the tissue at the lesion position. Among them, the first end of the support member 2 shown in this embodiment corresponds to the second straight segment. In this embodiment, the radial distance D22 of the first end of the support member 2 relative to the central axis O2 of the endoscope tip 5 can be further set to be greater than the radius of the endoscope tip 5.

[0062] As Figure 1 shown in Figure 5 and

[0063] shown, in order to ensure that the support member 2 can achieve a better folding effect, in this embodiment, a first end region and a second end region are defined radially at the front end of the forceps channel tube 1; the support member 2 is rotatably arranged in the first end region, and a notch 4 is provided in the second end region; when the support member 2 is in the folded state, the first end of the support member 2 is received in the notch 4.

[0064] Further, in this embodiment, it can be set that when the support member 2 is in the folded state, the axial distance of the first end of the support member 2 relative to the front port of the forceps channel tube 1 is less than the axial opening depth of the notch 4, so as to ensure that when the support member 2 is in the folded state, the support member 2 is completely located within the accommodation area where the notch 4 is located, and on the basis of ensuring that the front end of the forceps device can smoothly pass through the instrument channel 51, the maximum cross-sectional area of the forceps channel tube 1 is realized.

[0064] Based on the solution shown in the above embodiment, in order to facilitate reliably controlling the switching of the support member 2 between the folded state and the deployed state through the traction member 3, in this embodiment, a first limiting portion 11 and a second limiting portion 12 are provided on the forceps channel tube 1. When a pulling force is applied to the second end of the support member 2 through the traction member 3, the support member 2 can be controlled to rotate relative to the forceps channel tube 1 between the first limiting portion 11 and the second limiting portion 12.

[0065] Specifically, as Figure 1 shown in Figure 5 and

[0066] shown, when a thrust force in the insertion direction is applied to the traction member 3 in this embodiment, the support member 2 can be controlled to rotate clockwise until the support member 2 reaches the folded state. When the support member 2 is in the folded state, the first side surface of the support member 2 abuts against the first limiting portion 11; at this time, if a thrust force is continuously applied to the traction member 3, based on the limiting effect of the first limiting portion 11, the support member 2 still remains in the folded state. As Figure 3 shown in Figure 7As shown in the figure, when a pulling force is applied to the traction member 3 in a direction away from the insertion direction in this embodiment, the support member 2 can be controlled to rotate counterclockwise until the support member 2 reaches the deployed state. When the support member 2 is in the deployed state, the second side surface of the support member 2 can selectively abut or separate from the second limiting portion 12. When the second side surface of the support member 2 abuts against the second limiting portion 12, if a pulling force is continuously applied to the traction member 3, based on the limiting effect of the second limiting portion 12, the support member 2 still maintains the deployed state.

[0067] It should be pointed out here that the first side surface and the second side surface of the support member 2 shown in this embodiment are opposite to each other; both the first limiting portion 11 and the second limiting portion 12 can be limiting posts provided on the outer side wall of the forceps channel tube 1. When the support member 2 is a "C"-shaped member, the first limiting portion 11 and the second limiting portion 12 shown in this embodiment are provided on the opposite sides of the forceps channel tube 1.

[0068] Based on the solution shown in the above embodiment, in order to facilitate controlling the traction force applied by the traction member 3 to the support member 2, a first guiding channel 101 is provided on the tube wall of the forceps channel tube 1 in this embodiment; the first guiding channel 101 extends along the axial direction of the forceps channel tube 1; the traction member 3 is movably disposed through the first guiding channel 101, and a sealing structure 10 is provided between the traction member 3 and the inner wall surface of the first guiding channel 101.

[0069] As Figures 1 - 8 shown, the first guiding channel 101 shown in this embodiment is provided on the outer tube wall of the forceps channel tube 1. When the support member 2 is a "C"-shaped member, the first guiding channels 101 are respectively provided on the outer tube walls on the opposite sides of the forceps channel tube 1 in this embodiment, and the traction members 3 are correspondingly provided in the two first guiding channels 101 so as to simultaneously traction the first end portion and the second end portion of the "C"-shaped member.

[0070] As Figure 11 shown, in order to prevent the liquid in the human body from flowing out along the first guiding channel 101, resulting in contact pollution, an annular limiting groove 9 is provided on the side wall of the traction member 3 in this embodiment, and the annular limiting groove 9 extends along the circumferential direction of the traction member 3. The sealing structure 10 shown in this embodiment includes a sealing ring, the sealing ring is embedded in the annular limiting groove 9, and the outer side surface of the sealing ring contacts the inner wall surface of the first guiding channel 101. Thus, when the traction member 3 moves in the first guiding channel 101, the sealing ring moves along with the traction member 3, and a contact seal is formed between the sealing ring and the opposite wall surface of the first guiding channel 101.

[0071] As Figure 9 And Figure 10 shown, in order to facilitate controlling the retraction of the forceps channel tube 1 into the instrument channel or the extension out of the instrument channel, a control portion is further provided in the endoscopic forceps channel device shown in this embodiment.

[0072] The control unit shown in this embodiment includes an operating handle 6, a fixing sleeve 7, and a locking member 8; the front end of the operating handle 6 is disposed within the fixing sleeve 7 and is connected to the rear end of the forceps channel tube 1; the locking member 8 is disposed on the side wall of the fixing sleeve 7; the locking member 8 has a locked state and an unlocked state. When the locking member 8 is in the locked state, the operating handle 6 is connected to the fixing sleeve 7. When the locking member 8 is in the unlocked state, the operating handle 6 is separated from the fixing sleeve 7 so that the operating handle 6 can move within the fixing sleeve 7.

[0073] Specifically, when the operating handle 6 is pushed into the fixing sleeve 7 in this embodiment, the front end of the endoscope forceps channel device can be controlled to extend out of the instrument channel 51 along the insertion direction. When the operating handle 6 is pulled out of the fixing sleeve 7, the front end of the endoscope forceps channel device can be controlled to retract into the instrument channel in a direction away from the insertion direction until it retracts into the insertion tube of the endoscope.

[0074] It should be noted here that in order to simultaneously satisfy the movement control of the forceps channel tube 1 and the insertion operation of the surgical instrument, this embodiment is also provided with a K-shaped tee for the forceps channel tube 1. The rear end of the forceps channel tube 1 is communicated with the first port of the K-shaped tee, the second port of the K-shaped tee is connected to the front end of the operating handle 6, and the third port of the K-shaped tee serves as the surgical instrument insertion port.

[0075] Furthermore, the operating handle 6 shown in this embodiment includes a rod body portion 61 and an operating portion 62. The front end of the rod body portion 61 is inserted into the fixing sleeve 7 and is connected to the second port of the K-shaped tee. The rear end of the rod body portion 61 is connected to the operating portion 62.

[0076] Of course, in order to simultaneously satisfy the movement control of the forceps channel tube 1 and the insertion operation of the surgical instrument, in the case where the K-shaped tee is not provided, this embodiment can also directly connect the rear end of the forceps channel tube 1 to the front end of the operating handle 6 and construct a side hole on the tube wall near the rear end of the forceps channel tube 1, and use the side hole as the surgical instrument insertion port.

[0077] At the same time, the locking member 8 shown in this embodiment is preferably a locking bolt. After determining that the front end of the endoscope forceps channel device reaches the designated position, by tightening the locking bolt, the end of the locking bolt can be made to abut against the rod body portion 61 so that the operating handle 6 cannot move relative to the fixing sleeve 7, ensuring that the position of the front end of the forceps channel device in the human body remains unchanged.

[0078] Correspondingly, after the operation is completed, by unscrewing the locking bolt so that the end of the locking bolt is separated from the rod body portion 61, the front end of the forceps channel device can be controlled to retract into the instrument channel 51 through the operating handle 6.

[0079] Further, a second guiding channel 102 is provided on the operating handle 6 shown in this embodiment; the second guiding channel 102 extends along the length direction of the operating handle 6, and the traction member 3 is movably disposed through the second guiding channel 102, and the other end of the traction member 3 extends toward the rear end of the operating handle 6 under the guidance of the second guiding channel 102.

[0080] As Figure 10 shown, the second guiding channel 102 shown in this embodiment is provided in the rod body portion 61 of the operating handle 6 and extends along the axial direction of the rod body portion 61, so that the rod body portion 61 can move smoothly within the fixed sleeve 7. When there are two traction members 3, one second guiding channel 102 is provided on each opposite side of the rod body portion 61.

[0081] Meanwhile, the operating portion 62 shown in this embodiment is circular to facilitate the operator to hold and operate. The traction member 3 shown in this embodiment is inserted from the front end of the first guiding channel 101, led out from the rear end of the first guiding channel 101, and then inserted from the front end of the second guiding channel 102 again, and extends from the rear end of the second guiding channel 102 into the circular area defined by the operating portion 62.

[0082] Wherein, a bend angle is provided at the rear end of the traction member 3 in this embodiment, so that when the operator holds the operating portion 62, it is convenient to hook the bend angle with a finger to apply a thrust or a traction force to the rear end of the traction member 3.

[0083] Based on the solution shown in the above embodiment, the forceps channel tube 1 shown in this embodiment includes: a main body tube section and a rigid transparent tube section; the first end of the rigid transparent tube section is the front end of the forceps channel tube 1, the support member 2 is rotatably connected to the first end of the rigid transparent tube section, the second end of the rigid transparent tube section is connected to the first end of the main body tube section, and the second end of the main body tube section is the rear end of the forceps channel tube 1.

[0084] Specifically, during the surgical operation, the main body tube section of the forceps channel tube 1 in this embodiment is located within the insertion tube of the endoscope, and the first end of the rigid transparent tube section extends out of the front side of the instrument channel 51. Thus, the rigid transparent tube section not only serves as a load-bearing member of the support member 2, but also provides an ample image acquisition perspective for the camera at the distal end 5 of the endoscope due to its transparent characteristic.

[0085] Here, in combination with the attached Figures 12 - 15 , the installation and use process of the endoscope forceps channel device shown in this embodiment will be specifically described. In Figures 12 - 15 , the distal end 5 of the endoscope is assembled from two assembled parts.

[0086] As Figure 12 shown, when the control unit applies a thrust force in the insertion direction to the traction member 3, the support member 2 can be in a retracted state, and the first end of the support member 2 is received in the notch 4.

[0087] As Figure 13 shown, since the front end of the operating handle 6 is connected to the rear end of the forceps channel tube 1, the operator can drive the front end of the forceps device to pass through the instrument channel of the endoscopic lens end 5 and reach the lesion position on the front side of the instrument channel by controlling the insertion of the front end of the operating handle 6 into the fixed sleeve 7.

[0088] As Figure 14 shown, the operator can make the support member 2 switch from the retracted state to the deployed state by applying a pulling force in the direction away from the insertion direction to the traction member 3 by holding the operating portion 62 of the operating handle 6, and surgical treatment preparation can be carried out.

[0089] As Figure 15 shown, during the operation, a surgical instrument 13 is inserted into the forceps channel tube 1, and based on the guidance of the forceps channel tube 1, the surgical instrument 13 is delivered to the lesion position where the front end of the forceps device is located. During this process, the operator always applies a pulling force in the direction away from the insertion direction to the traction member 3 so that the support member 2 is always in the deployed state. Among them, when the support member 2 is in the deployed state, its function is the same as the support function of the transparent cap of the existing endoscope for the lesion position.

[0090] Correspondingly, after the operation is completed, the traction member 3 is released, and a pushing force in the insertion direction is applied to the traction member 3. Under the combined action of the pushing force of the traction member 3 and the compressive force of the internal tissues of the human body, the support member 2 switches from the deployed state to the retracted state. Then, by controlling the operating handle 6, the forceps device is pulled into the interior of the instrument channel and then withdrawn from the instrument channel, and thus the working process is completed.

[0091] Preferably, this embodiment further provides an endoscope, including: the endoscopic forceps channel device according to any one of the above.

[0092] Specifically, since the endoscope includes the endoscopic forceps channel device shown in the above embodiment, the endoscope shown in this embodiment includes all the technical solutions of the above embodiment. Therefore, it has at least all the beneficial effects brought by all the technical solutions of the above embodiment, which will not be elaborated here one by one.

[0093] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An endoscope channel device, characterized in that, Comprising: A forceps channel tube and a support member; The support member is provided at the front end of the forceps channel tube; The support member has a retracted state and an expanded state; When the support member is in the retracted state, the first end of the support member is close to the forceps channel tube, and the front end of the forceps device can pass through the instrument channel of the endoscope tip; when the support member is in the expanded state, the first end of the support member is far from the forceps channel tube, so as to support the tissue at the lesion position by the first end of the support member; Further comprising: a traction member; The support member is rotatably provided at the front end of the forceps channel tube, one end of the traction member is connected to the second end of the support member, and the traction member is used to drive the support member to rotate relative to the forceps channel tube, so that the support member switches between the retracted state and the expanded state; When the support member is in the expanded state, the radial distance of the first end of the support member relative to the central axis of the endoscope tip is greater than the radius of the endoscope tip.

2. The endoscope forceps channel device according to claim 1, wherein The front end of the forceps channel tube defines a first end portion area and a second end portion area in the radial direction; the support member is rotatably provided in the first end portion area, and the second end portion area is provided with a notch; When the support member is in the retracted state, the first end of the support member is received in the notch.

3. The endoscope forceps channel device according to claim 2, wherein When the support member is in the retracted state, the axial distance of the first end of the support member relative to the front port of the forceps channel tube is less than the axial opening depth of the notch; And / or, when the support member is in the expanded state, the radial distance of the first end of the support member relative to the central axis of the instrument channel is greater than the radial distance of the first end of the support member relative to the central axis of the endoscope tip.

4. The endoscope forceps channel device according to claim 1, wherein The forceps channel tube is provided with a first limiting portion and a second limiting portion; The support member rotates relative to the forceps channel tube between the first limiting portion and the second limiting portion; when the support member is in the retracted state, the first side surface of the support member abuts against the first limiting portion; when the support member is in the expanded state, the second side surface of the support member can selectively abut against or separate from the second limiting portion, and the first side surface and the second side surface are opposite to each other.

5. The endoscope forceps channel device according to claim 1, wherein The tube wall of the forceps channel tube is provided with a first guiding channel; the first guiding channel extends along the axial direction of the forceps channel tube; the traction member is movably disposed in the first guiding channel, and a sealing structure is provided between the traction member and the inner wall surface of the first guiding channel.

6. The endoscopic channel device according to any one of claims 1 to 5, characterized in that, The support member includes: a "C"-shaped member; The "C" - shaped member has a first end and a second end; the first end and the second end are respectively disposed on the outer side of the forceps channel tube relatively; both the first end and the second end include: a traction end and a rotating end; the traction end is away from the first end of the "C" - shaped member and is connected to one end of the traction member; the rotating end is close to the first end of the "C" - shaped member and is rotatably connected to the forceps channel tube.

7. The endoscope channel device according to any one of claims 1 to 5, characterized in that The endoscopic forceps channel device further includes a control unit; The control unit includes: an operating handle, a fixed sleeve and a locking member; the front end of the operating handle is disposed in the fixed sleeve and is connected to the rear end of the forceps channel tube; the locking member is disposed on the side wall of the fixed sleeve; the locking member has a locked state and an unlocked state. When the locking member is in the locked state, the operating handle is connected to the fixed sleeve. When the locking member is in the unlocked state, the operating handle is separated from the fixed sleeve so that the operating handle can move within the fixed sleeve.

8. The endoscopic forceps channel device according to claim 7, wherein, A second guiding channel is provided on the operating handle; The second guiding channel extends along the length direction of the operating handle, and the traction member is movably inserted into the second guiding channel, and the other end of the traction member extends towards the rear end of the operating handle under the guidance of the second guiding channel.

9. The endoscopic channel device according to any one of claims 1 to 5, characterized in that, The forceps channel tube includes: a main tube section and a hard transparent tube section; The support member is disposed at the first end of the hard transparent tube section, the second end of the hard transparent tube section is connected to the first end of the main tube section, and the second end of the main tube section is the rear end of the forceps channel tube.

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