Endoscope with rotatable head

Abstract

The present invention discloses a method for using an endoscope with a rotatable head end, comprising: a mirror tube; a transmission shaft rotatably connected to the inner wall of the mirror tube, the axis of the transmission shaft extending along the axial direction of the mirror tube; and a lens assembly eccentrically connected to one end of the transmission shaft, the transmission shaft being capable of driving the lens assembly to block or open the mirror tube. The inner cavity of the mirror tube is configured to serve as an instrument channel, the instrument channel having a relatively large space. The lens assembly is eccentrically connected to one end of the transmission shaft, so that after the transmission shaft rotates, the lens assembly can be rotated to a position away from the mirror tube, thereby opening the instrument channel of the mirror tube. In this way, the mirror tube can leak a larger instrument channel, can accommodate instruments with larger diameters, has a wide adaptability range, and is convenient for carrying out surgery. The inner wall of the mirror tube is provided with a rotation support block, the rotation support block is provided with a through hole, the through hole extending along the axial direction of the mirror tube, the transmission shaft is rotatably arranged in the through hole, and has a simple structure.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to a method for using an endoscope with a rotatable head end. Background Art

[0002] An endoscope is a common medical instrument. The endoscope comprises a tube and a lens assembly. The lens assembly is connected to the end of the tube, and a camera and an instrument channel are provided on the lens assembly.

[0003] Currently, endoscopes have to meet the size requirements of the body's tissue channels, but because a lens assembly must be equipped with both a camera and an instrument channel, the space for the instrument channel is limited, making it difficult to perform many surgeries that require the use of larger instruments or the coordinated use of multiple instruments. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a method for using an endoscope with a rotatable tip, which can maximize the instrument channel of the endoscope within a limited body tissue channel, facilitating the use of larger instruments for surgical operations.

[0005] A method for using an endoscope with a rotatable head according to a first embodiment of the present invention includes the following steps:

[0006] Insert the tube and lens assembly into the body;

[0007] Establishing a channel, twisting the transmission shaft to rotate the lens assembly, and the lens assembly makes way for the instrument channel of the mirror tube after the rotation;

[0008] Inserting the instrument, inserting the instrument from the instrument channel of the mirror tube to the position to be treated;

[0009] Put the endoscope away, take out the instrument, and then twist the transmission shaft so that the lens assembly blocks the instrument channel of the mirror tube after rotation, so that the lens assembly is connected to the mirror tube, and then the endoscope is pulled out.

[0010] A method for using an endoscope with a rotatable head end according to an embodiment of the present invention has at least the following beneficial effects: the inner cavity of the mirror tube can be used as an instrument channel, the space of the instrument channel is relatively large, and the lens assembly is eccentrically connected to one end of the transmission shaft. Therefore, after the transmission shaft rotates, the lens assembly can be rotated to a position away from the mirror tube, so that the instrument channel of the mirror tube is opened. In this way, the mirror tube can leak a larger instrument channel, can adapt to instruments with larger diameters, has a wide adaptability range, and facilitates surgery.

[0011] According to some embodiments of the present invention, an endoscope with a rotatable head end includes: a mirror tube; a drive shaft rotatably connected to the inner wall of the mirror tube, the axis of the drive shaft extending along the axial direction of the mirror tube; and a lens assembly eccentrically connected to one end of the drive shaft, wherein the drive shaft can drive the lens assembly to close or open the mirror tube. The inner cavity of the mirror tube can be used as an instrument channel, and the instrument channel has a large space. The lens assembly is eccentrically connected to one end of the drive shaft, so that after the drive shaft rotates, the lens assembly can rotate to a position away from the mirror tube, so that the instrument channel of the mirror tube is opened. In this way, the mirror tube can leak a larger instrument channel, can accommodate instruments with larger diameters, has a wide adaptability range, and facilitates the operation.

[0012] According to some embodiments of the present invention, a rotating support block is provided on the inner wall of the mirror tube, and a through hole is opened in the rotating support block. The through hole extends along the axial direction of the mirror tube, and the transmission shaft is rotatably provided in the through hole. The structure is simple, and the transmission shaft can rotate in the through hole. The transmission shaft is restricted by the support block, and the transmission shaft maintains an unchanged position, which is convenient for driving the lens assembly.

[0013] According to some embodiments of the present invention, a sealing ring is provided in the through hole, and the sealing ring is sleeved on the transmission shaft. The inner ring of the sealing ring abuts the transmission shaft, and the outer ring of the sealing ring abuts the inner wall of the through hole. The sealing ring is provided to seal the through hole, and the through hole is sealed without affecting the rotation of the transmission shaft, so that the wire in the through hole and the space in the through hole remain dry, avoiding water entering the through hole to cause pollution and interference to the wire.

[0014] According to some embodiments of the present invention, a plurality of sealing rings are provided, and the plurality of sealing rings are arranged along the axial direction of the through hole. The plurality of sealing rings can play a multi-stage sealing role, and the sealing protection level is better.

[0015] According to some embodiments of the present invention, the lens assembly includes a mounting block, a camera and a lighting lamp. The mounting block is eccentrically connected to one end of the transmission shaft, and the camera and the lighting lamp are arranged on the mounting block. The structure is simple. The mounting block is set to centrally install the camera and the lighting lamp, which is convenient for overall disassembly and overall transfer.

[0016] According to some embodiments of the present invention, the mounting block is configured to be in a bullet-shaped shape, and the camera and the lighting lamp are embedded in the mounting block. The bullet-shaped mounting block can better guide the entire lens tube to be inserted into the body, and because the insertion end of the bullet-shaped mounting block is round, the mounting block will not cause damage to the body when it is inserted into the body.

[0017] According to some embodiments of the present invention, a rubber snap ring is provided at one end of the mounting block close to the mirror tube. The rubber snap ring enables an interference fit between the mounting block and the mirror tube. The provision of the snap ring can avoid cutting the body, and can generate a damping feeling when the mounting block rotates away from the mirror tube, also to prevent the mounting block from rotating due to external force. The rubber snap ring can also produce a sealing effect when blocking the mirror tube.

[0018] According to some embodiments of the present invention, a guiding bevel is provided on the rubber clip near the rotation center of the mounting block, and the guiding bevel is used to gradually bring the rubber clip into pressure contact with the end face of the mirror tube, so that the mounting block can be rotated more easily and the rubber clip is interference fit on the end face of the mirror tube.

[0019] According to some embodiments of the present invention, the other end of the transmission shaft is connected to a handle, and the handle is provided to facilitate pinching and rotating the transmission shaft.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0022] Figure 1 Schematic diagram of the structure of an endoscope according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 The schematic diagram of the structure of the endoscope after the transmission shaft is rotated is shown;

[0024] Figure 3 for Figure 1 A cross-sectional view of an endoscope is shown;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 for Figure 1 An exploded view of the endoscope is shown;

[0027] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0028] Figure 7 for Figure 1 A schematic structural diagram of the lens assembly of an endoscope is shown.

[0029] Mirror tube 100, rotating support block 110, through hole 111, sealing ring 111a, wire 120;

[0030] Transmission shaft 200, handle 210;

[0031] Lens assembly 300 , mounting block 310 , rubber snap ring 311 , guide slope 311 a , camera 320 , and lighting lamp 330 . DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0034] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figures 1 to 7 A method for using an endoscope with a rotatable head end includes the following steps: inserting the endoscope tube 100 together with the lens assembly 300 into the body; establishing a channel, turning the transmission shaft 200 to rotate the lens assembly 300, and the lens assembly 300 makes way for the instrument channel of the endoscope tube 100 after the rotation; inserting the instrument, and inserting the instrument from the instrument channel of the endoscope tube 100 to the position to be treated; retracting the endoscope, and then turning the transmission shaft 200 to make the lens assembly 300 block the instrument channel of the endoscope tube 100 after the rotation, so that the lens assembly 300 cooperates with the endoscope tube 100, and then withdrawing the endoscope.

[0037] In some embodiments, an endoscope with a rotatable tip includes: a barrel 100; a drive shaft 200 rotatably connected to the inner wall of the barrel 100, the axis of the drive shaft 200 extending axially along the barrel 100; and a lens assembly 300 eccentrically connected to one end of the drive shaft 200, wherein the drive shaft 200 can drive the lens assembly 300 to close or open the barrel 100. The inner cavity of the barrel 100 can be used as an instrument channel, which has a large space. The lens assembly 300 is eccentrically connected to one end of the drive shaft 200. Therefore, after the drive shaft 200 rotates, the lens assembly 300 can rotate to a position away from the barrel 100, thereby opening the instrument channel of the barrel 100. This allows the barrel 100 to have a larger instrument channel, accommodating instruments with larger diameters, providing a wide range of adaptability and facilitating surgical procedures. It is understood that the eccentric connection means that one end of the drive shaft 200 is connected to a position away from the center of gravity of the lens assembly 300. It should be noted that before the mirror tube 100 is inserted into the body, the lens assembly 300 is completely connected to the mirror tube 100, that is, the lens assembly 300 blocks the mirror tube 100. After insertion into the body, the transmission shaft 200 is rotated. Because the lens assembly 300 is eccentrically connected to one end of the transmission shaft 200, after the transmission shaft 200 rotates, the lens assembly 300 will swing aside, opening the channel of the mirror tube 100. At this time, medical instruments such as guide wires can be inserted into the body along the instrument channel of the mirror tube 100, which is convenient and quick, and avoids the trouble of using a mirror sheath and an endoscope in combination. In the past, it was necessary to insert the endoscope sheath into the body to establish a channel, and then insert the endoscope into the body along the channel of the endoscope sheath to find the lesion that needs to be treated, and then extend the treatment instrument from the instrument channel on the endoscope to treat the lesion. This previous method was more troublesome and involved more steps. Now, it is only necessary to insert the endoscope to find the lesion, and then remove the lens assembly 300 to start treatment. This eliminates the step of establishing a channel in advance, so it is convenient and quick.

[0038] In some embodiments, a rotation support block 110 is provided on the inner wall of the mirror tube 100. The rotation support block 110 is provided with a through hole 111. The through hole 111 extends along the axial direction of the mirror tube 100. The transmission shaft 200 is rotatably provided in the through hole 111. The structure is simple. The transmission shaft 200 can rotate in the through hole 111. The transmission shaft 200 is restricted by the support block 110. The transmission shaft 200 maintains its position unchanged, which facilitates driving the lens assembly 300. It should be noted that the rotation support block 110 protrudes from the inner wall of the mirror tube 100 into the mirror tube 100; the rotation support block 110 is a protrusion that supports the rotation of the transmission shaft 200. The rotation support block 110 extends from one end of the mirror tube 100 to the other end, and the through hole 111 also extends from one end of the mirror tube 100 to the other end.

[0039] In some embodiments, a sealing ring 111a is provided in the through hole 111, and the sealing ring 111a is sleeved on the transmission shaft 200. The inner ring of the sealing ring 111a abuts the transmission shaft 200, and the outer ring of the sealing ring 111a abuts the inner wall of the through hole 111. The provided sealing ring 111a is used to seal the through hole 111. Without affecting the rotation of the transmission shaft 200, the through hole 111 is sealed to keep the wire 120 in the through hole 111 and the space in the through hole 111 dry, thereby preventing water from entering the through hole 111 and causing pollution, and interfering with the wire 120.

[0040] In some embodiments, multiple sealing rings 111a are provided, and the multiple sealing rings 111a are arranged along the axial direction of the through hole 111. The multiple sealing rings 111a can play a multi-stage sealing role, and the degree of sealing protection is better. It can be understood that steps are provided at both ends of the through hole 111, and at least one sealing ring 111a can be placed on a step. When two sealing rings 111a are provided, one sealing ring is placed on one step, and the other sealing ring is placed on the other step.

[0041] In some embodiments, the lens assembly 300 includes a mounting block 310, a camera 320 and a lighting lamp 330. The mounting block 310 is eccentrically connected to one end of the transmission shaft 200. The camera 320 and the lighting lamp 330 are set on the mounting block 310. The structure is simple. The mounting block 310 is set to centrally install the camera 320 and the lighting lamp 330, which is convenient for overall disassembly and overall transfer.

[0042] In some embodiments, the mounting block 310 is configured to be in a bullet-shaped shape, and the camera 320 and the lighting lamp 330 are embedded in the mounting block 310. The bullet-shaped mounting block 310 can better guide the entire lens tube 100 to be inserted into the body, and because the insertion end of the bullet-shaped mounting block 310 is round, the mounting block 310 will not cause damage to the body when it is inserted into the body. It can be understood that the bullet-shaped shape is similar to the shape of half an ellipse, and its generatrix is ​​an arc-shaped involute.

[0043] In some embodiments, a rubber snap ring 311 is provided at one end of the mounting block 310 close to the mirror tube 100. The rubber snap ring 311 provides an interference fit between the mounting block 310 and the mirror tube 100. The provision of the snap ring 311 can prevent the body from being cut. When the mounting block 310 rotates away from the mirror tube 100, a damping feeling can be generated, which is also to prevent the mounting block 310 from rotating due to external force. The rubber snap ring 311 can also produce a sealing effect when blocking the mirror tube 100.

[0044] In some embodiments, a guiding bevel 311 a is provided on the rubber clip 311 near the rotation center of the mounting block 310. The guiding bevel 311 a is used to gradually bring the rubber clip 311 into pressure contact with the end face of the mirror tube 100, so that the mounting block 310 can be rotated more easily and the rubber clip 311 is interference fit on the end face of the mirror tube 100.

[0045] In some embodiments, the other end of the transmission shaft 200 is connected to a handle 210 , and the handle 210 is provided to facilitate pinching and rotating the transmission shaft 200 .

[0046] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. An endoscope with a rotatable head, characterized in that: include: Mirror tube; a transmission shaft rotatably connected to the inner wall of the mirror tube, wherein the axis of the transmission shaft extends along the axial direction of the mirror tube; A lens assembly is eccentrically connected to one end of the transmission shaft, and the transmission shaft can drive the lens assembly to block or open the lens tube; The lens assembly includes a mounting block, a camera and a lighting lamp, wherein the mounting block is eccentrically connected to one end of the transmission shaft, and the camera and the lighting lamp are arranged on the mounting block; The mounting block is configured in a bullet-shaped shape, and the camera and the lighting lamp are embedded in the mounting block; A rubber snap ring is provided at one end of the mounting block close to the mirror tube, and the rubber snap ring enables the mounting block to be interference-fitted with the mirror tube; The rubber clamping ring is provided with a guiding inclined surface near the rotation center of the mounting block; The inner wall of the mirror tube is provided with a rotation support block, the rotation support block is provided with a through hole, the through hole extends along the axial direction of the mirror tube, the transmission shaft is rotatably provided in the through hole, and the other end of the transmission shaft is connected to a handle.

2. The endoscope with a rotatable tip according to claim 1, characterized in that: A sealing ring is provided in the through hole, and the sealing ring is sleeved on the transmission shaft. The inner ring of the sealing ring abuts against the transmission shaft, and the outer ring of the sealing ring abuts against the inner wall of the through hole.

3. The endoscope with a rotatable tip according to claim 2, characterized in that: A plurality of sealing rings are provided, and the plurality of sealing rings are arranged along the axial direction of the through hole.

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