Endoscope with expansion structure and working method thereof

Abstract

The present invention relates to the technical field of endoscopes, and specifically to an endoscope with an expansion structure and a working method thereof, comprising a connecting plug, an endoscope channel is installed on the left side of the connecting plug, a connecting hole is opened on the right side surface of the connecting plug, a mounting ring is provided on the outer surface of the endoscope channel, a first expansion ring is installed on the outer surface of the mounting ring, an expansion disk is provided on the left side of the mounting ring, an adapter ring is installed on the left side of the expansion disk, and a second expansion ring is provided on the outer surface of the adapter ring. The present invention can assist the shrinking expansion disk to enter the interior of the surgical port for expansion operation by adjusting the degree of adaptability to human skin during expansion, and the expansion operation of the second expansion ring can assist the shrinking expansion disk to enter the interior of the surgical port for expansion operation, and then expand the first expansion ring inside the surgical port by adjusting the position of the connecting tube and can also lock the position of the connecting shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an endoscope with an expansion structure and a working method thereof. Background Art

[0002] An endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, and software. It has image sensors, optical lenses, light sources, mechanical devices, etc. It can enter the stomach through the mouth or other natural orifices. Endoscopes can be used to see lesions that X-rays cannot show, so they are very useful to doctors. For example, with the help of an endoscope, doctors can observe ulcers or tumors in the stomach and develop the best treatment plan based on this.

[0003] In this regard, China's authorization announcement number: CN113925547B discloses a variable-angle V-shaped dual-channel working sheath for spinal endoscopic surgery, including a working sheath handle body, a clamping ring is arranged on the working sheath handle body, the clamping ring is used to connect a detachable connecting handle or a robot or a mechanical arm, and the working sheath handle body has two independent working sheath channels one and two; the bottoms of the working sheath channel one and the working sheath channel two are connected side by side through an elastic rotating shaft, and the tops of the two are jointly connected to an elastic support structure, and the upper end of the working sheath channel one is also embedded with an endoscope locking depth regulator; the angles of the two channels of the working sheath of the present invention are adjustable, the depth of the connected endoscope can be adjusted in real time, and a window is opened at the end of the instrument channel, which expands the flexibility of instrument operation, prevents damage to the endoscope and reduces the risk of injury to the surgical instrument, and avoids the situation where the endoscope cannot observe the surgical instrument during the operation.

[0004] However, in actual use, when performing surgery, the surgical incision is not flexible enough when it is expanded as a whole. When the surgical incision is small and needs to be expanded, the expansion component is used to expand the surgical incision immediately. The overall expansion is not gradual, that is, the surgical incision cannot be expanded section by section, and when the deep surgical incision needs to be further expanded, the expanded surgical incision cannot be loosened, which will damage the skin deep in the surgical incision, resulting in limitations in the overall expansion. Therefore, it is urgent to improve and perfect the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide an endoscope with an expansion structure and a working method thereof, so as to solve the problem that the surgical port proposed in the above-mentioned background technology is not flexible enough when used as a whole when it is expanded. When the surgical port is small and needs to be expanded, the surgical port is immediately expanded by the expansion component, and the overall expansion is not gradual, that is, the surgical port cannot be expanded section by section, and when the deep surgical port needs to be further expanded, the expanded surgical port cannot be loosened, which will damage the skin deep in the surgical port, thereby having limitations when expanding the whole.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an endoscope with a spreading structure and a working method thereof, comprising a connecting plug, an endoscope tube is installed on the left side of the connecting plug, a connecting hole is opened on the right side surface of the connecting plug, a mounting ring is arranged on the outer surface of the endoscope tube, a first spreading ring is installed on the outer surface of the mounting ring, a spreading disk is arranged on the left side of the mounting ring, an adapter ring is installed on the left side of the spreading disk, a second spreading ring is arranged on the outer surface of the adapter ring, a stabilizing ring is installed on the left side of the second spreading ring, a circular internal gear is arranged inside the spreading disk, a circular groove is opened on the left side of the circular internal gear, the circular groove takes the center of the circular internal gear as the center, a limiting rod is arranged inside the circular groove, the limiting rod is installed on the left side surface of the spreading disk, and the inner side wall of the circular internal gear is meshed and connected with the mounting gear;

[0007] A rotating shaft, the rotating shaft is fixedly connected and installed on the left side surface of the mounting gear, a ratchet body is installed on the left side of the rotating shaft, a rotating column is fixedly connected to the left side of the ratchet body, a worm wheel is installed on the left side of the rotating column, a worm is meshingly connected to the top surface of the worm wheel, the worm is installed inside an adapter ring, a rotating cylinder is installed on the front surface of the worm, a telescopic column is installed inside the rotating cylinder, and a resistance ring is fixedly connected to the front surface of the telescopic column.

[0008] Preferably, an arc-shaped groove is formed on the outer surface of the rotating cylinder, and a convex column is installed inside the arc-shaped groove.

[0009] Preferably, a connecting shaft is fixedly connected to the right side of the mounting gear, the connecting shaft penetrates through the interior of the first expansion ring for installation, and a connecting cylinder is provided on the outer surface of the connecting shaft.

[0010] Preferably, a connecting groove is provided inside the connecting tube, the connecting groove and the connecting tube are adapted to each other, and a limiting ring is fixedly connected to the right side surface of the connecting tube.

[0011] Preferably, a through groove is provided inside the adapter ring, a through groove is provided inside the first expansion ring, and a mounting frame is installed inside the first expansion ring.

[0012] Preferably, a pushing frame is provided on the outer surface of the connecting cylinder.

[0013] Preferably, an oblique groove is provided on the front surface of the mounting frame, and a connecting slide is slidably installed inside the oblique groove.

[0014] Preferably, a top ring is fixedly connected to the top surface of the connecting slide, a positioning block is installed inside the inclined groove on the back side of the connecting slide, a limiting groove is opened inside the mounting frame, the limiting groove and the positioning block are adapted to each other, and the left side of the pushing frame contacts the right side surface of the positioning block.

[0015] Preferably, a limit frame and a second connecting ring are sequentially provided on the outer surface of the circular internal gear from top to bottom, a pull rope is installed on the outer surface of the second connecting ring, a limit roller is installed on the inner side wall of the limit frame, the pull rope is attached to the outer surface of the limit roller, a first connecting ring is installed on the end of the pull rope away from the second connecting ring, the first connecting ring is installed on the top surface of the inner wall of the support plate, the limit frame, the pull rope, the first connecting ring, the second connecting ring and the limit roller are provided in three groups, all of which are installed on the outer surface of the circular internal gear.

[0016] A working method of an endoscope with a distraction structure:

[0017] S1. The endoscope channel passes through the surgical port as a whole, the stabilizing ring will contact the inside of the surgical port, and then the second expansion ring will also contact the inside of the surgical port, and the expansion disk will be on the outside of the surgical port, by inserting the connecting tube into the inside of the groove, and then the connecting tube will pass through the inside of the connecting shaft and fit between the connecting shaft and the connecting shaft. At this time, the connecting shaft and the connecting groove fit each other, and then the limiting ring is rotated. When the limiting ring rotates, the connecting tube and the connecting shaft will also rotate, and then the connecting shaft will drive the installation gear to rotate, and then the installation gear will mesh with the circular internal gear, so as to drive the circular internal gear to rotate clockwise, and the rotation of the circular internal gear is limited by the setting of the limiting rod and the circular groove on the left side of the circular internal gear;

[0018] S2. When the installation gear rotates, it will also drive the ratchet body and the rotating column to rotate, and then the rotating column will drive the worm wheel to rotate, and the worm wheel and the worm are meshed. Then the worm rotates and drives the rotating cylinder to rotate. Then, when the rotating cylinder rotates, it will drive the convex column to move inside the arc groove, that is, drive the telescopic column and the resistance ring to move forward, and then the resistance ring will resist the second expansion ring inside the adapter ring, and the resistance ring will push the second expansion ring forward, which can simultaneously expand the front and back sides of the surgical port. Then, when the limit ring is rotated in the opposite direction, the circular internal gear will rotate counterclockwise. Due to the setting of the ratchet body, the rotating column will not rotate at this time. Then, when the circular internal gear rotates counterclockwise, the pull rope is connected to the inner wall of the expansion disk, so that the second connecting ring will also move. When the second connecting ring moves, the pull rope will be pulled , the pull rope is limited by the limit frame and the limit roller, so that the first connecting ring can be pulled by the pull rope, so that the outer surface of the expansion disk can be pulled downward, and the arrangement is provided with three groups, so that the expansion disk as a whole can be contracted toward its center of the circle, and the expansion disk as a whole can be reduced, so that the expansion disk can enter the interior of the surgical opening, and when the expansion disk enters the interior of the surgical opening, the limit ring is rotated forward at this time, so that the circular internal gear will return to its original position, so that the expansion disk will be released from the state of being pulled by the pull rope and the first connecting ring, and the expansion disk will be loosened and expanded at this time, so that the restored expansion disk will expand the surgical opening, and when the limit ring rotates forward at this time, the resistance ring will also drive the second expansion ring to move forward, and the surgical opening can be expanded again through the continued movement of the resistance ring and the second expansion ring;

[0019] S3. After the expansion disk and the second expansion ring are expanded as a whole inside the surgical port, the connecting tube is taken out from the inside of the through groove and reinserted. At this time, the connecting tube moves forward, and then the push frame on the outer surface of the connecting tube contacts the right side of the positioning block, so that the positioning block slides to the left inside the limiting groove, and then the connecting slide also slides to the upper left inside the inclined groove, so that the connecting slide drives the top ring to move upward, and through the top ring moving to the upper left, the first expansion ring can be contacted and moved upward inside the first expansion ring, so that the surgical port can continue to be expanded after the expansion disk and the second expansion ring are expanded as a whole;

[0020] S4. After the connecting tube moves inside the through groove, the connecting tube and the connecting groove can also be adapted. The position of the connecting shaft can also be locked through the setting of the connecting tube and the connecting groove, so that the expanded surgical port can be stabilized. The expansion size is such that the second expansion ring is smaller than the expansion disk, and the expansion disk is smaller than the first expansion ring. Thus, the overall surgical port can be expanded from small to large, and the expansion operation of the second expansion ring can assist the shrunken expansion disk to enter the interior of the surgical port for expansion operation. Then, the position of the connecting tube is adjusted to expand the first expansion ring inside the surgical port and the position of the connecting shaft can also be locked.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] When using the endoscope with a spreading structure and the working method thereof, firstly, the entire endoscope channel is passed through the surgical port, then the stabilizing ring will contact the inside of the surgical port, then the second spreading ring will contact the inside of the surgical port, and then the spreading plate will be on the outside of the surgical port. When the surgical port needs to be further spread, the connecting tube is inserted into the groove, and then the connecting tube passes through the inside of the connecting shaft and is adapted and installed between the connecting shaft. At this time, the connecting shaft and the connecting groove are adapted to each other, and then the limiting ring is rotated. When the limiting ring rotates, the connecting tube and the connecting shaft will also rotate, and then the connecting shaft will drive the installation gear to rotate, and then the installation gear will mesh with the circular internal gear, thereby driving the circular internal gear. The rotation of the circular inner gear is limited by the setting of the limiting rod and the circular groove on the left side of the circular inner gear. Then, when the installation gear rotates, the ratchet body and the rotating column will be driven to rotate. Then, the rotating column will drive the worm wheel to rotate. The worm wheel and the worm are meshed. Then, the worm rotates and drives the rotating cylinder to rotate. Then, when the rotating cylinder rotates, it will drive the convex column to move inside the arc groove, that is, drive the telescopic column and the contact ring to move forward. Then, the contact ring will contact the second expansion ring inside the adapter ring. The contact ring pushes the second expansion ring forward, which can expand the surgical incision. Two groups of the contact rings are provided, which can simultaneously expand the front and rear sides of the surgical incision. Then, when the limiting ring is rotated in the opposite direction, The circular inner gear will rotate counterclockwise, and due to the setting of the ratchet body, the rotating column will not rotate at this time, and through the self-locking effect of the worm gear and the worm, the resistance ring can continue to resist the second expansion ring to expand the surgical incision, and then when the circular inner gear rotates counterclockwise, the pull rope is connected to the inner wall of the expansion disk, so that the second connecting ring will also move, and when the second connecting ring moves, the pull rope will be pulled, and the pull rope will be limited by the limit frame and the limit roller, so that the first connecting ring can be pulled by the pull rope, so that the outer surface of the expansion disk can be pulled downward, and the setting has three groups, so that the expansion disk as a whole can be contracted toward its center of the circle, and the expansion disk as a whole can be reduced, so that the expansion disk can The expansion disk can enter the interior of the surgical port, and when the expansion disk enters the interior of the surgical port, the limiting ring is rotated forward so that the circular internal gear will return to its original position so that the expansion disk will release the pulling state of the pull rope and the first connecting ring. At this time, the expansion disk will loosen and expand, so that the restored expansion disk will expand the surgical port, and when the limiting ring is rotated forward, the resistance ring will also drive the second expansion ring to move forward. First, the surgical port can be expanded and enlarged again through the continued movement of the resistance ring and the second expansion ring, and at the same time, it can also assist the expansion disk to enter the interior of the surgical port to continuously expand the surgical port, thereby expanding the expansion area of ​​the surgical port as a whole, making it convenient to change the direction and position of the endoscope channel, and being more convenient to use as a whole.

[0023] The endoscope with an expansion structure and the working method thereof, when the expansion disk and the second expansion ring are expanded as a whole inside the surgical port, the connecting tube is taken out from the inside of the through groove and reinserted, and the connecting tube moves forward, and then the pushing frame on the outer surface of the connecting tube contacts the right side of the positioning block, so that the positioning block slides to the left inside the limiting groove, and then the connecting slide also slides to the upper left inside the inclined groove, so that the connecting slide drives the top ring to move upward, and the top ring moves to the upper left, so that the first expansion ring can contact and move upward inside the first expansion ring, so that the surgical port can continue to be expanded after the expansion disk and the second expansion ring are expanded as a whole, which has a gradual effect and avoids the previous one-time expansion of the surgical port. The problem of damage caused by expansion is solved. At the same time, when the connecting tube moves inside the through groove, the connecting tube and the connecting groove can also be adapted. The setting of the connecting tube and the connecting groove can also lock the position of the connecting shaft, so that the expanded surgical opening is stabilized, so that the whole has a locking effect. Therefore, the expansion size of the present setting is that the second expansion ring is smaller than the expansion disk, and the expansion disk is smaller than the first expansion ring, so that the whole surgical opening can be expanded from small to large, ensuring the degree of adaptability to human skin during expansion, and the expansion operation of the second expansion ring can assist the reduced expansion disk to enter the interior of the surgical opening for expansion operation, and then the position of the connecting tube is adjusted to expand the first expansion ring inside the surgical opening and the position of the connecting shaft can be locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a three-dimensional schematic diagram of the mounting ring and the second support ring structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the disassembly of the mounting ring and the adapter ring structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the splitting of the support plate and the circular internal gear structure of the present invention;

[0028] Figure 5 It is a three-dimensional schematic diagram of the circular internal gear and the mounting gear structure of the present invention;

[0029] Figure 6 It is a three-dimensional schematic diagram of the rotating column and the ratchet body structure of the present invention;

[0030] Figure 7 A second perspective perspective schematic diagram of the connecting tube structure of the present invention;

[0031] Figure 8 It is a three-dimensional schematic diagram of the connecting tube and the top ring structure of the present invention;

[0032] Fig. 9 It is a schematic diagram of the disassembly of the mounting ring and the first expansion ring structure of the present invention.

[0033] In the figure: 1, connecting plug; 2, endoscope channel; 3, connecting hole; 4, mounting ring; 5, first expansion ring; 6, expansion disk; 7, adapter ring; 8, second expansion ring; 9, stabilizing ring; 10, circular internal gear; 11, limit rod; 12, mounting gear; 13, rotating shaft; 14, ratchet body; 15, rotating column; 16, worm wheel; 17, worm; 18, rotating cylinder; 19, telescopic column; 20, resistance Ring; 21, arc groove; 22, boss; 23, connecting shaft; 24, connecting tube; 25, connecting groove; 26, limiting ring; 27, through groove; 28, through groove; 29, pushing frame; 30, mounting frame; 31, inclined groove; 32, connecting slide; 33, top ring; 34, positioning block; 35, limiting groove; 36, limiting frame; 37, pull rope; 38, first connecting ring; 39, second connecting ring; 40, limiting roller. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 9 , an embodiment provided by the present invention:

[0036] An endoscope with an expansion structure. The connecting plug 1, endoscope tube 2, connecting hole 3, ratchet body 14, worm 17, first expansion ring 5 and second expansion ring 8 used in the present application are all products that can be directly purchased on the market. The principles and connection methods thereof are all prior arts well known to those skilled in the art, so they will not be described in detail herein. The endoscope comprises a connecting plug 1, an endoscope tube 2 is installed on the left side of the connecting plug 1, a connecting hole 3 is provided on the right side surface of the connecting plug 1, a mounting ring 4 is provided on the outer surface of the endoscope tube 2, a first expansion ring 5 is installed on the outer surface of the mounting ring 4, an expansion disk 6 is provided on the left side of the mounting ring 4, the outer surface of the expansion disk 6 is made of rubber and is elastic, an adapter ring 7 is installed on the left side of the expansion disk 6, and the outer surface of the adapter ring 7 is A second expansion ring 8 is provided, a stabilizing ring 9 is installed on the left side of the second expansion ring 8, a circular internal gear 10 is provided inside the expansion disk 6, a circular groove is provided on the left side of the circular internal gear 10, the circular groove is centered on the center of the circular internal gear 10, a limiting rod 11 is provided inside the circular groove, and the limiting rod 11 is installed on the left side surface of the expansion disk 6, the inner side wall of the circular internal gear 10 is meshed and connected with a mounting gear 12, and a connecting shaft 23 is fixedly connected to the right side of the mounting gear 12, the connecting shaft 23 passes through the interior of the first expansion ring 5 for installation, a connecting cylinder 24 is provided on the outer surface of the connecting shaft 23, a connecting groove 25 is provided inside the connecting cylinder 24, the connecting groove 25 and the connecting cylinder 24 are adapted to each other, and a limiting ring 26 is fixedly connected to the right side surface of the connecting cylinder 24, A through groove 27 is provided inside the adapter ring 7, a through groove 28 is provided inside the first expansion ring 5, a pushing frame 29 is provided on the outer surface of the connecting tube 24, a mounting frame 30 is installed inside the first expansion ring 5, an inclined groove 31 is provided on the front surface of the mounting frame 30, a connecting slide 32 is slidably installed inside the inclined groove 31, a top ring 33 is fixedly connected to the top surface of the connecting slide 32, a positioning block 34 is installed inside the back of the connecting slide 32 through the inclined groove 31, a limiting groove 35 is provided inside the mounting frame 30, the limiting groove 35 and the positioning block 34 are adapted to each other, the left side of the pushing frame 29 abuts against the right side surface of the positioning block 34, a limiting frame 36 and a second connecting ring 39 are provided on the outer surface of the circular internal gear 10 from top to bottom, and the outer surface of the second connecting ring 39 A pull rope 37 is installed on the surface, and a limit roller 40 is installed on the inner wall of the limit frame 36. The pull rope 37 is attached to the outer surface of the limit roller 40. The end of the pull rope 37 away from the second connection ring 39 is installed with a first connection ring 38. The first connection ring 38 is installed on the top surface of the inner wall of the expansion disk 6. The limit frame 36, the pull rope 37, the first connection ring 38, the second connection ring 39 and the limit roller 40 are provided in three groups, all of which are installed on the outer surface of the circular internal gear 10. First, the endoscope tube 2 is passed through the surgical port as a whole, and then the stabilizing ring 9 will contact the inside of the surgical port, and then the second expansion ring 8 will also contact the inside of the surgical port, and then the expansion disk 6 will be on the outside of the surgical port. When the surgical port needs to be further expanded, the connecting tube 24 is inserted into the groove 28.Then the connecting tube 24 will pass through the inside of the connecting shaft 23 and be adapted and installed between the connecting shaft 23. At this time, the connecting shaft 23 and the connecting groove 25 are adapted to each other, and then the limiting ring 26 is rotated. When the limiting ring 26 rotates, the connecting tube 24 and the connecting shaft 23 will also rotate, and then the connecting shaft 23 will drive the installation gear 12 to rotate, and then the installation gear 12 will mesh with the circular internal gear 10, so as to drive the circular internal gear 10 to rotate clockwise. The rotation of the circular internal gear 10 is limited by the setting of the limiting rod 11 and the circular groove on the left side of the circular internal gear 10, and then when the installation gear 12 rotates, it will also drive the ratchet body 14 and the rotating column 15 to rotate, and then the rotating column 15 will drive the worm gear 16 rotates, the worm wheel 16 meshes with the worm 17, and then the worm 17 rotates and drives the rotating cylinder 18 to rotate, and then the rotating cylinder 18 rotates, and then the protruding column 22 is driven to move inside the arc groove 21, that is, the telescopic column 19 and the contact ring 20 are driven to move forward, and then the contact ring 20 will contact the second expansion ring 8 inside the adapter ring 7, and the contact ring 20 pushes the second expansion ring 8 forward, which can expand the surgical opening, and the contact ring 20 is provided with two groups, which can simultaneously expand the front and rear sides of the surgical opening, and then when the limit ring 26 is rotated in the opposite direction, the circular internal gear 10 will rotate counterclockwise at this time, and at the same time, due to the setting of the ratchet body 14, the rotating column 15 will not rotate at this time, and the worm Due to the self-locking effect of the wheel 16 and the worm 17, the resistance ring 20 can continuously resist the second expansion ring 8 to expand the surgical opening. Then, when the circular internal gear 10 rotates counterclockwise, the pull rope 37 is connected to the inner wall of the expansion disk 6, so that the second connection ring 39 will also move. When the second connection ring 39 moves, the pull rope 37 will be pulled, and the pull rope 37 is limited by the limit frame 36 and the limit roller 40, so that the first connection ring 38 can be pulled by the pull rope 37, so that the outer surface of the expansion disk 6 can be pulled downward, and the arrangement has three groups, so that the expansion disk 6 can be contracted toward its center as a whole, and the expansion disk 6 can be reduced as a whole, so that the expansion disk 6 can enter the interior of the surgical opening. When the expansion disk 6 enters the interior of the surgical port, the limiting ring 26 is rotated forwardly, so that the circular internal gear 10 will return to its original position, so that the expansion disk 6 will be released from the pulling state of the pull rope 37 and the first connecting ring 38, and the expansion disk 6 will be loosened and expanded, so that the restored expansion disk 6 will expand the surgical port, and when the limiting ring 26 rotates forwardly, the resistance ring 20 will also drive the second expansion ring 8 to move forward, firstly, the surgical port can be expanded again through the continued movement of the resistance ring 20 and the second expansion ring 8, and at the same time, the expansion disk 6 can be assisted to enter the interior of the surgical port to continuously expand the surgical port, thereby expanding the expansion area of ​​the surgical port as a whole, and facilitating the change of direction and position of the endoscope channel 2;

[0037] A rotating shaft 13 is fixedly connected and installed on the left side surface of the mounting gear 12. A ratchet body 14 is installed on the left side of the rotating shaft 13. A rotating column 15 is fixedly connected to the left side of the ratchet body 14. A worm wheel 16 is installed on the left side of the rotating column 15. A worm 17 is meshed and connected to the top surface of the worm wheel 16. The worm 17 is installed inside the adapter ring 7. A rotating cylinder 18 is installed on the front surface of the worm 17. A telescopic column 19 is installed inside the rotating cylinder 18. A resistance ring 20 is fixedly connected to the front surface of the telescopic column 19. An arc groove 21 is opened on the outer surface of the rotating cylinder 18. A convex column 22 is installed inside the arc groove 21. When the expansion plate 6 and the second expansion ring 8 are integrally moved inside the surgical port, the expansion cylinder 18 is rotated. After the expansion, the connecting tube 24 is taken out from the inside of the through groove 28 and reinserted, and the connecting tube 24 will move forward, and then the pushing frame 29 on the outer surface of the connecting tube 24 will resist the right side of the positioning block 34, so that the positioning block 34 will slide to the left inside the limiting groove 35, and then the connecting slide 32 will also slide to the upper left inside the inclined groove 31, so that the connecting slide 32 will drive the top ring 33 to move upward, and the top ring 33 moves to the upper left, so that the first expansion ring 5 can be resisted and moved upward inside the first expansion ring 5, so that the surgical incision can continue to be expanded after the expansion plate 6 and the second expansion ring 8 are expanded as a whole, which has a gradual effect and avoids In the past, the problem of expanding the surgical incision at one time causing damage was solved. At the same time, after the connecting tube 24 moves inside the through groove 28, the connecting tube 24 and the connecting groove 25 can also be adapted. The setting of the connecting tube 24 and the connecting groove 25 can also lock the position of the connecting shaft 23, so that the expanded surgical incision is stabilized, so that the whole has a locking effect. Therefore, the expansion size of the present setting is that the second expansion ring 8 is smaller than the expansion disk 6, and the expansion disk 6 is smaller than the first expansion ring 5, so that the whole surgical incision can be expanded from small to large, ensuring the adaptability to human skin during expansion, and the expansion operation of the second expansion ring 8 can assist the shrunk expansion disk 6 to enter the interior of the surgical incision for The expansion operation is then performed by adjusting the position of the connecting tube 24 to expand the first expansion ring 5 inside the surgical port and the position of the connecting shaft 23 can also be locked. The connecting tube 24 is relatively long and can pass through the interior of the first expansion ring 5 to connect with the connecting shaft 23. The second expansion ring 8, expansion plate 6 and first expansion ring 5 of the present arrangement can expand the surgical port in sequence from small to large, and the second expansion ring 8 is in a stable state before the expansion plate 6 enters the surgical port to expand. When the expansion plate 6 enters the surgical port, the second expansion ring 8 continues to expand, and the expansion size of the second expansion ring 8 is smaller than that of the expansion plate 6, and the expansion size of the first expansion ring 5 is larger than that of the expansion plate 6.

[0038] A working method of an endoscope with a distraction structure:

[0039] S1. The endoscope tube 2 passes through the surgical port as a whole, the stabilizing ring 9 will contact the inside of the surgical port, and then the second expansion ring 8 will also contact the inside of the surgical port, and the expansion disk 6 will be on the outside of the surgical port, by inserting the connecting tube 24 into the through groove 28, and then the connecting tube 24 will pass through the inside of the connecting shaft 23 and be adapted and installed between the connecting shaft 23, at this time, the connecting shaft 23 and the connecting groove 25 are adapted to each other, and then the limiting ring 26 is rotated. When the limiting ring 26 rotates, the connecting tube 24 and the connecting shaft 23 will also rotate, and then the connecting shaft 23 will drive the installation gear 12 to rotate, and then the installation gear 12 will mesh with the circular internal gear 10, so as to drive the circular internal gear 10 to rotate clockwise, and the rotation of the circular internal gear 10 is limited by the setting of the limiting rod 11 and the circular groove on the left side of the circular internal gear 10;

[0040] S2. When the mounting gear 12 rotates, it will also drive the ratchet body 14 and the rotating column 15 to rotate, and then the rotating column 15 will drive the worm wheel 16 to rotate, and the worm wheel 16 is meshed with the worm 17, and then the worm 17 rotates and drives the rotating cylinder 18 to rotate, and then the rotation of the rotating cylinder 18 will drive the protruding column 22 to move inside the arc groove 21, that is, drive the telescopic column 19 and the contact ring 20 to move forward, and then the contact ring 20 will contact the second expansion ring 8 inside the adapter ring 7, and the contact ring 20 will push the second expansion ring 8 forward, which can simultaneously expand the front and rear sides of the surgical opening, and then when the limit ring 26 is rotated in the opposite direction, the circular internal gear 10 will rotate counterclockwise at this time. Due to the setting of the ratchet body 14, the rotating column 15 will not rotate at this time, and then when the circular internal gear 10 rotates counterclockwise, the pull rope 37 is connected to the inner wall of the expansion disk 6, so that the second connecting ring 39 will also move, and when the second connecting ring 39 moves The pull rope 37 will be pulled, and the pull rope 37 will be limited by the limit frame 36 and the limit roller 40, so that the first connecting ring 38 can be pulled by the pull rope 37, so that the outer surface of the expansion disk 6 can be pulled downward, and the arrangement is provided with three groups, so that the expansion disk 6 can be contracted toward its center as a whole, and the expansion disk 6 can be reduced as a whole, so that the expansion disk 6 can enter the interior of the surgical opening. When the expansion disk 6 enters the interior of the surgical opening, the limit ring 26 is rotated forward at this time, so that the circular internal gear 10 will return to its original position, so that the expansion disk 6 will be released from the pulling state of the pull rope 37 and the first connecting ring 38, and the expansion disk 6 will be loosened and expanded, so that the restored expansion disk 6 will expand the surgical opening, and when the limit ring 26 rotates forward at this time, the resistance ring 20 will also drive the second expansion ring 8 to move forward, and the surgical opening can be expanded again through the continued movement of the resistance ring 20 and the second expansion ring 8;

[0041] S3. After the expansion disk 6 and the second expansion ring 8 are expanded as a whole inside the surgical port, the connecting tube 24 is taken out from the inside of the through groove 28 and reinserted. At this time, the connecting tube 24 will move forward, and then the pushing frame 29 on the outer surface of the connecting tube 24 will resist the right side of the positioning block 34, so that the positioning block 34 will slide to the left inside the limiting groove 35, and then the connecting slide 32 will also slide to the upper left inside the inclined groove 31, so that the connecting slide 32 will drive the top ring 33 to move upward, and the top ring 33 moves to the upper left, so that the first expansion ring 5 can resist and move upward inside the first expansion ring 5, so that the surgical port can continue to be expanded after the expansion disk 6 and the second expansion ring 8 are expanded as a whole;

[0042] S4. After the connecting tube 24 moves inside the through groove 28, the connecting tube 24 and the connecting groove 25 can also be adapted. The position of the connecting shaft 23 can also be locked through the setting of the connecting tube 24 and the connecting groove 25, so that the expanded surgical opening can be stabilized. The expansion size is such that the second expansion ring 8 is smaller than the expansion disk 6, and the expansion disk 6 is smaller than the first expansion ring 5, so that the overall surgical opening can be expanded from small to large, and the expansion operation of the second expansion ring 8 can assist the shrunken expansion disk 6 to enter the interior of the surgical opening for expansion operation, and then the position of the connecting tube 24 is adjusted to expand the first expansion ring 5 inside the surgical opening and the position of the connecting shaft 23 can also be locked.

[0043] Working principle: When the staff uses this device, first connect the device to an external power supply to provide power support for the device. First, the connecting hole 3 is connected to the device through a wire, and then the endoscope tube 2 is passed through the surgical port as a whole. Then the stabilizing ring 9 will contact the inside of the surgical port, and then the second expansion ring 8 will also contact the inside of the surgical port, and then the expansion disk 6 will be on the outside of the surgical port. When the surgical port needs to be further expanded, the connecting tube 24 is inserted into the groove 28, and then the connecting tube 24 will pass through the inside of the connecting shaft 23 and be adapted and installed between the connecting shaft 23. At this time, the connecting shaft 23 and the connecting groove 25 are adapted to each other, and then the limiting ring 26 is rotated. When the limiting ring 26 rotates, the connecting tube 24 and the connecting shaft 23 are also The mounting gear 12 will rotate, and then the connecting shaft 23 will drive the mounting gear 12 to rotate, and then the mounting gear 12 will mesh with the circular internal gear 10, so as to drive the circular internal gear 10 to rotate clockwise, and the rotation of the circular internal gear 10 is limited by the setting of the limiting rod 11 and the circular groove on the left side of the circular internal gear 10, and then when the mounting gear 12 rotates, the ratchet body 14 and the rotating column 15 will also be driven to rotate, and then the rotating column 15 will drive the worm wheel 16 to rotate, and the worm wheel 16 will mesh with the worm 17, and then the worm 17 will rotate and drive the rotating cylinder 18 to rotate, and then the rotating cylinder 18 will drive the convex column 22 to move inside the arc groove 21 when the rotating cylinder 18 rotates, that is, the telescopic column 19 and the abutment ring 20 will be driven to move forward, and then the abutment ring 20 It will resist the second expansion ring 8 inside the adapter ring 7, and the resistance ring 20 will push the second expansion ring 8 forward to expand the surgical opening, and the resistance ring 20 is provided with two groups, which can simultaneously expand the front and rear sides of the surgical opening, and then when the limit ring 26 is rotated in the opposite direction, the circular internal gear 10 will rotate counterclockwise, and at the same time, due to the setting of the ratchet body 14, the rotating column 15 will not rotate at this time, and through the self-locking effect of the worm gear 16 and the worm 17, the resistance ring 20 can continue to resist the second expansion ring 8 to expand the surgical opening, and then when the circular internal gear 10 rotates counterclockwise, the pull rope 37 is connected to the inner wall of the expansion disk 6, so that the second connecting ring 39 will also move, and when the second connecting ring 39 moves, the pull rope 37 will be pulled in The pull rope 37 is limited by the limit frame 36 and the limit roller 40, so that the first connecting ring 38 can be pulled by the pull rope 37, so that the outer surface of the expansion disk 6 can be pulled downward, and the arrangement has three groups, so that the expansion disk 6 can be contracted toward its center as a whole, and the expansion disk 6 can be reduced as a whole, so that the expansion disk 6 can enter the interior of the surgical opening. When the expansion disk 6 enters the interior of the surgical opening, the limit ring 26 is rotated forward at this time, so that the circular internal gear 10 will return to its original position, so that the expansion disk 6 will be released from the state of being pulled by the pull rope 37 and the first connecting ring 38. At this time, the expansion disk 6 will loosen and expand, so that the restored expansion disk 6 will open the surgical opening, and when the limit ring 26 rotates forward,At this time, the resistance ring 20 will also drive the second expansion ring 8 to move forward. First, the continued movement of the resistance ring 20 and the second expansion ring 8 can expand the surgical incision again, and at the same time, it can assist the expansion plate 6 to enter the interior of the surgical incision to continuously expand the surgical incision.

[0044] After the expansion disk 6 and the second expansion ring 8 are expanded as a whole inside the surgical port, the connecting tube 24 is taken out from the inside of the through groove 28 and reinserted. At this time, the connecting tube 24 will move forward, and then the pushing frame 29 on the outer surface of the connecting tube 24 will resist the right side of the positioning block 34, so that the positioning block 34 will slide to the left inside the limiting groove 35, and then the connecting slide 32 will also slide to the upper left inside the inclined groove 31, so that the connecting slide 32 will drive the top ring 33 to move upward, and the top ring 33 moves to the upper left, so that the first expansion ring 5 can be resisted and moved upward inside the first expansion ring 5, so that the surgical port can continue to be expanded after the expansion disk 6 and the second expansion ring 8 are expanded as a whole, which has a gradual effect and avoids the problem of expanding the surgical port at one time and causing damage. When the connecting tube 24 moves inside the through groove 28, the connecting tube 24 and the connecting groove 25 can also be adapted. The setting of the connecting tube 24 and the connecting groove 25 can also lock the position of the connecting shaft 23, thereby stabilizing the expanded surgical opening, so that the whole has a locking effect. Therefore, the expansion size of the present setting is that the second expansion ring 8 is smaller than the expansion disk 6, and the expansion disk 6 is smaller than the first expansion ring 5, so that the whole surgical opening can be expanded from small to large, ensuring the degree of adaptability to human skin during expansion, and the expansion operation of the second expansion ring 8 can assist the reduced expansion disk 6 to enter the interior of the surgical opening for expansion operation, and then the position of the connecting tube 24 is adjusted to expand the first expansion ring 5 inside the surgical opening and the position of the connecting shaft 23 can also be locked. The above is all the working principles of the present invention.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An endoscope with a support structure, comprising a connection plug (1), an endoscope channel (2) being installed on the left side of the connection plug (1), and a connection hole (3) being provided on the right side surface of the connection plug (1), characterized in that: The outer surface of the endoscope tube (2) is provided with a mounting ring (4), the outer surface of the mounting ring (4) is provided with a first expansion ring (5), the left side of the mounting ring (4) is provided with an expansion disk (6), the left side of the expansion disk (6) is provided with an adapter ring (7), the outer surface of the adapter ring (7) is provided with a second expansion ring (8), the left side of the second expansion ring (8) is provided with a stabilizing ring (9), the inside of the expansion disk (6) is provided with a circular internal gear (10), the left side of the circular internal gear (10) is provided with a circular groove, the center of the circular internal gear (10) is the center, the inside of the circular groove is provided with a limit rod (11), the limit rod (11) is installed on the left side surface of the expansion disk (6), and the inner side wall of the circular internal gear (10) is meshedly connected with a mounting gear (12); A rotating shaft (13) is fixedly connected and mounted on the left side surface of the mounting gear (12); a ratchet body (14) is mounted on the left side of the rotating shaft (13); a rotating column (15) is fixedly connected to the left side of the ratchet body (14); a worm wheel (16) is mounted on the left side of the rotating column (15); a worm (17) is meshingly connected to the top surface of the worm wheel (16); the worm (17) is mounted inside the adapter ring (7); a rotating cylinder (18) is mounted on the front surface of the worm (17); a telescopic column (19) is mounted inside the rotating cylinder (18); and a contact ring (20) is fixedly connected to the front surface of the telescopic column (19).

2. The endoscope with an expansion structure according to claim 1, characterized in that: An arc-shaped groove (21) is formed on the outer surface of the rotating cylinder (18), and a convex column (22) is installed inside the arc-shaped groove (21).

3. The endoscope with an expansion structure according to claim 1, characterized in that: A connecting shaft (23) is fixedly connected to the right side of the installation gear (12). The connecting shaft (23) penetrates the interior of the first expansion ring (5) for installation. A connecting tube (24) is provided on the outer surface of the connecting shaft (23).

4. The endoscope with an expansion structure according to claim 3, characterized in that: A connecting groove (25) is provided inside the connecting tube (24), the connecting groove (25) and the connecting tube (24) are adapted to each other, and a limiting ring (26) is fixedly connected to the right side surface of the connecting tube (24).

5. The endoscope with an expansion structure according to claim 1, characterized in that: A through groove (27) is provided inside the adapter ring (7), a through groove (28) is provided inside the first expansion ring (5), and a mounting frame (30) is installed inside the first expansion ring (5).

6. The endoscope with an expansion structure according to claim 3, characterized in that: The outer surface of the connecting tube (24) is provided with a pushing frame (29).

7. The endoscope with an expansion structure according to claim 5, characterized in that: The front surface of the mounting frame (30) is provided with an inclined groove (31), and a connecting slide seat (32) is slidably mounted inside the inclined groove (31).

8. The endoscope with an expansion structure according to claim 7, characterized in that: The top surface of the connecting slide (32) is fixedly connected with a top ring (33), the back surface of the connecting slide (32) is penetrated by the inclined groove (31) and a positioning block (34) is installed inside, and a limiting groove (35) is provided inside the mounting frame (30), the limiting groove (35) and the positioning block (34) are adapted to each other, and the left side of the pushing frame (29) abuts against the right side surface of the positioning block (34).

9. The endoscope with an expansion structure according to claim 1, characterized in that: The outer surface of the circular internal gear (10) is provided with a limit frame (36) and a second connecting ring (39) in sequence from top to bottom, the inner side wall of the limit frame (36) is provided with a limit roller (40), the outer surface of the second connecting ring (39) is provided with a pull rope (37), the pull rope (37) is attached to the outer surface of the limit roller (40), the end of the pull rope (37) away from the second connecting ring (39) is provided with a first connecting ring (38), the first connecting ring (38) is installed on the top surface of the inner wall of the support plate (6), the limit frame (36), the pull rope (37), the first connecting ring (38), the second connecting ring (39) and the limit roller (40) are provided in three groups, all of which are installed on the outer surface of the circular internal gear (10).

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