An anoscope with adjustable window opening and flattenable mucosa

Abstract

The present invention belongs to the technical field of medical devices, and particularly relates to an anoscope with an adjustable window and flattenable mucosa, which includes a body. The body is in the shape of a hollow frustum with a smaller front end and a larger rear end. An opening is provided at the upper part of the body, and a strip-shaped plate is integrally formed in the opening. An operation window penetrating the rear end of the strip-shaped plate is provided on the strip-shaped plate. After the hinge rod is unfolded, it inclines forward from the outside to the inside, and the outer end protrudes from the outer wall of the sliding piece. A guiding groove is axially provided on the inner wall of the sliding piece, and an exit groove is provided at one end of the guiding groove far away from the mounting table. The guiding groove and the exit groove are staggered from each other. A push-pull block is fixedly provided in the notch of the mounting disc, and the push-pull block is inserted into the guiding groove. A fixing mechanism for fixing the sliding piece is provided on the strip-shaped plate. Its purpose is to solve the problem that the existing anoscope cannot perform selective opening and closing of the operation window to expose the surgical field and flatten the mucosa and skin protrusions in the lower rectum and hemorrhoid area in the surgical field, so as to fully expose the blocked deep surgical field and facilitate surgical operations.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to an anoscope with an adjustable window and flattenable mucosa. Background Art

[0002] During the operation of deep anal surgery, it is often faced with the situation that the mucosa of the lower rectum in the caudal side of the anus or the skin mucosa of the hemorrhoid area bulges, blocking the surgical field of deep anal surgery and making the operation difficult to perform. In the existing technical solutions, clinicians often use a suture device similar to a PPH stapler in cooperation with an anal dilator for operation, or use a LONE-STAR disc retractor to expose the anus and the lower rectum for operation. However, this solution requires the support of anesthesia surgery, and the operation is extremely inconvenient and the cost is also high. And for the existing anoscopes, whether they are closed circular or open-loop, they all have obvious deficiencies in the operation of deep anal surgery: the head port diameter of the closed circular anoscope is small, and the lens barrel is deep, seriously affecting the operation space of surgical instruments. For example, the operation space for a needle holder to hold a needle and then insert the needle and suture is extremely limited due to the obstruction of the lens body. The operation space completely depends on the diameter size, but a larger diameter is likely to cause difficulty in insertion or tearing of the anal and rectal skin mucosa. Although the open-loop anoscope is not limited by the head port diameter size and the lens barrel depth of the anoscope, since it is open-loop (mostly semi-circular), the anal and rectal mucosa can enter the anoscope through the open-loop, accumulate together, like a raised hill, and even block the surgical field of deep anal and rectal surgery, seriously affecting the exposure of the deep surgical field, increasing the surgical difficulty, prolonging the operation time, and increasing the probability of intraoperative accidental injury.

[0003] Currently visible selective opening anoscopes cannot flatten the caudal bulging rectal mucosa or the skin mucosa of the hemorrhoid area. Although they can prevent large-scale accumulation of mucosa, the mucosa still inevitably bulges through the opening. And because the sleeve wall at the opening is hollow, it is very easy for the anal and rectal mucosa to get stuck in it along the opening during the process of inserting or withdrawing the anoscope, causing unnecessary injuries. Secondly, a small opening is not conducive to surgical operation, and if the opening is large, the mucosal accumulation will also become larger. Summary of the Invention

[0004] The purpose of the present invention is to provide an anoscope with an adjustable window and flattenable mucosa, which is used to solve the problem that the existing anoscopes cannot realize the selectively openable and closable operation window to expose the surgical field and flatten the mucosa and skin bulges in the lower rectum and the hemorrhoid area in the surgical field, so as to fully expose the blocked deep surgical field and facilitate surgical operation.

[0005] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0006] An anoscope with adjustable window opening and flattenable mucosa, comprising a body. The body is a hollow frustum-shaped structure with a smaller front end and a larger rear end. An opening is provided at the upper part of the body, and a strip-shaped plate is integrally formed within the opening. An operation window penetrating through the rear end of the strip-shaped plate is provided on the strip-shaped plate. A sliding piece is slidably installed within the operation window. Both the strip-shaped plate and the sliding piece are strip-shaped structures with an arc-shaped cross-section. An inner core rod is inserted into the body. An installation disk is fixedly provided on the inner core rod. An installation platform is integrally formed on the inner wall of the strip-shaped plate at the front end of the sliding piece. A number of installation slots are evenly provided on the installation platform. A hinge rod is hinged within the installation slot. A V-shaped elastic piece is installed between the hinge rod and the installation platform within the installation slot. After the hinge rod is unfolded, it inclines forward from the outside to the inside, and the outer end protrudes from the outer wall of the sliding piece. A guiding groove is axially provided on the inner wall of the sliding piece. An exit groove is provided at one end of the guiding groove away from the installation platform. The guiding groove and the exit groove are offset from each other. A communication groove is circumferentially provided on the inner wall of the sliding piece between the guiding groove and the exit groove. A notch is provided on the installation disk. A push-pull block is fixedly provided within the notch of the installation disk. The push-pull block is inserted into the guiding groove. A fixing mechanism for fixing the sliding piece is provided on the strip-shaped plate.

[0007] Further defined, the front end of the body converges inward to form a retaining ring. A guiding head is fixedly provided at the head end of the inner core rod, and a handle is fixedly provided at the tail end. The guiding head is inserted into the retaining ring and protrudes from the retaining ring. The outer wall of the guiding head is smoothly transitioned with the outer wall of the retaining ring and seals the front end of the retaining ring. The outer diameter dimension of the guiding head is smaller than the inner diameter dimension of the sliding piece. With such a structural design, while the guiding head seals the retaining ring formed by the inward convergence of the front end of the body, the arc-shaped surface formed by the guiding head and the retaining ring increases the matching with the frustum shape, and the retaining ring can also support the guiding head, thereby preventing the inner core rod from shaking during use, with strong practicability; at the same time, by restricting the outer diameter dimension of the guiding head and the inner diameter dimension of the sliding piece, the influence of the movement of the guiding head on the sliding piece is avoided, with strong practicability.

[0008] Further defined, a retaining disk is fixedly provided between the installation disk and the handle on the inner core rod. The retaining disk is in a bent shape. When the guiding head is inserted into the retaining ring and protrudes from the retaining ring, the edge of the retaining disk abuts against the inner wall of the body. When the push-pull block is located within the communication groove, the retaining disk is located outside the body. With such a structural design, through the mutual cooperation of the retaining disk and the body, during the process of inserting the anoscope into the anal canal of the patient, the retaining disk cooperates with the installation disk to jointly complete the positioning between the body and the inner core rod, avoiding the deflection of the inner core rod; at the same time, the bent shape of the retaining disk can not only cooperate with the smooth realization of the window opening function, but also better adapt to the special-shaped structure at the rear end of the anoscope, with strong practicability.

[0009] Further defined, a first identification line is provided on the rear wall of the sliding piece, and a second identification line is provided on the rear wall of the mounting disc. When the push-pull block is located in the exit groove, the first identification line is aligned with the second identification line. With such a structural design, through the mutual cooperation of the first identification line and the second identification line, when installing the push-pull block into the exit groove, it is only necessary to align the first identification line and the second identification line, and then push the inner core rod forward, which is more convenient to use.

[0010] Further defined, the outer wall of the sliding piece coincides with the outer wall of the strip plate. With such a structural design, through the coincidence of the outer wall of the sliding piece and the outer wall of the strip plate, it is possible to avoid pinching or even tearing the mucosa and skin of the lower rectum and the hemorrhoid area of the patient during the process of inserting the anoscope into the patient's anal canal due to the connection difference between the outer wall of the sliding piece and the outer wall of the strip plate, and the practicability is relatively strong.

[0011] Further defined, the push-pull block is T-shaped, and the cross-sections of the guiding groove and the exit groove are both T-shaped. With such a structural design, through the mutual cooperation of the T-shaped push-pull block and the guiding groove and the exit groove, when the free end of the push-pull block is located in the guiding groove and the exit groove, the sliding piece forms a radial limit on the inner core rod, avoiding the push-pull block from sliding out of the guiding groove and the exit groove along the diameter direction of the sliding piece, and further causing the problem of detachment between the inner core rod and the sliding piece, which is more convenient to use.

[0012] Further defined, the fixing mechanism includes a ball plunger radially screwed on the strip plate, and a plurality of hemispherical grooves are formed on the outer wall of the sliding piece. The plurality of hemispherical grooves are linearly arranged on the sliding piece. With such a structural design, the inner core rod drives the sliding piece to slide backward. When the sliding piece slides in place, the ball part of the ball plunger is caught in the corresponding hemispherical groove to complete the fixation between the strip plate and the sliding piece; the hemispherical grooves are provided in multiple numbers and are linearly arranged, which can realize the multi-gear fixation of the sliding piece, and further realize the fixation of windows of different sizes. The structure is simple, easy to use, and has relatively strong practicability.

[0013] Further defined, sliding parts are integrally formed on both sides of the sliding piece on the inner side surface of the strip plate, and L-shaped ridges are integrally formed on the inner wall of the strip plate at positions corresponding to the sliding parts. A sliding groove is formed between the L-shaped ridges and the strip plate, and the sliding parts are slidably installed in the sliding grooves. With such a structural design, through the mutual cooperation of the sliding parts and the sliding grooves, the sliding installation between the sliding piece and the strip plate is completed. The structure is simple, easy to manufacture, and has relatively strong practicability.

[0014] Further limitation: a receiving groove for receiving the hinge rod is formed at a position corresponding to the hinge rod on the inner wall of the strip-shaped plate. With such a structural design, through the mutual cooperation of the hinge rod and the receiving groove, after the hinge rod is folded, the free end of the hinge rod remains in the receiving groove, avoiding excessive bending of the V-shaped elastic piece caused by excessive rotation of the hinge rod, and further avoiding the problem of too low service life of the V-shaped elastic piece.

[0015] Further limitation: the hinge rod is cylindrical, and a sphere is provided at the free end of the hinge rod, and the sphere is smoothly transitioned with the hinge rod. With such a structural design, the sphere is used to contact the anal canal and rectal mucosa instead of the hinge rod. By using the unique smooth curved surface of the sphere, it is possible to avoid damage to soft tissues such as the anal canal and rectal mucosa and even anastomotic and wound sites caused by the pulling of the hinge rod during operation; at the same time, through the setting of the sphere and the comb-like arrangement of each hinge rod, it is more conducive to safely flattening the mucosal structure, and the practicability is strong.

[0016] Further limitation: the body, the strip-shaped plate and the sliding piece are all made of transparent materials. With such a structural design, it is more convenient to locate the surgical operation area, which is convenient and fast, and the practicability is strong.

[0017] The invention adopting the above technical solution has the following advantages:

[0018] 1. Through the mutual cooperation of the body, the strip-shaped plate, the inner core rod, the sliding piece, the hinge rod and the V-shaped elastic piece, when the sliding piece is pulled outwards by the inner core rod to expose the operation window, a comb rake is formed by the hinge rod to flatten and support the anal canal and rectal mucosa, avoiding the accumulation of the anal canal and rectal mucosa in the operation window, forming a hill-like bulge, and even blocking the deep surgical field of view and increasing the difficulty of surgical operation;

[0019] 2. Through the hollow frustum-shaped structure with a small front and a large rear of the body, in cooperation with the strip-shaped plate, on the basis of ensuring the smooth sliding of the sliding piece, it has a larger observation field of view and operation space, and is more convenient to use;

[0020] 3. The sliding plate is driven by the inner core rod to complete the selective opening and closing of the operation window, without the need to separately set an opening and closing structure, avoiding the occlusion of the observation field of view and operation space, and being more convenient to use;

[0021] 4. Through the mutual cooperation of the sliding piece, the body, the inner core rod, the operation window and the hinge rod, when the body is inserted / extracted from the patient's anal canal, the operation window is in a closed state and the comb rake is in a folded state, avoiding unnecessary damage, and the practicability is strong;

[0022] 5. By overlapping the outer wall of the sliding piece with the outer wall of the strip-shaped plate, it can be avoided that during the process of inserting the anoscope into the patient's anal canal, due to the connection difference between the outer wall of the sliding piece and the outer wall of the strip-shaped plate, the mucosa and skin of the lower rectum and hemorrhoid area of the patient are pinched or even torn, and the practicability is relatively strong.

[0023] 6. The inner core rod drives the sliding piece to slide backward. When the sliding piece slides in place, the ball head part of the ball head plunger is stuck into the corresponding hemispherical groove, completing the fixation between the strip-shaped plate and the sliding piece; the hemispherical grooves are arranged in multiple numbers and linearly, which can realize multi-gear fixation of the sliding piece, and further realize window fixation of different sizes. The structure is simple, easy to use, and the practicability is relatively strong.

[0024] 7. Through the mutual cooperation of the T-shaped push-pull block with the guide groove and the exit groove, when the free end of the push-pull block is located in the guide groove and the exit groove, the sliding piece forms a radial limit on the inner core rod, avoiding the push-pull block from sliding out of the guide groove and the exit groove along the diameter direction of the sliding piece, and further causing the problem of disconnection between the inner core rod and the sliding piece, making it more convenient to use.

[0025] 8. The sphere is used to contact the anorectal mucosa instead of the hinge rod. By using the unique smooth curved surface of the sphere, it can avoid the damage to the soft tissue of the anorectal mucosa and even the anastomosis and wound parts caused by the pulling of the hinge rod during the operation; at the same time, through the setting of the sphere and the comb-like arrangement of each hinge rod, it is more conducive to safely flattening the mucosal structure, and the practicability is relatively strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention can be further described by the non-limiting embodiments given in the drawings;

[0027] Figure 1 is a schematic structural diagram of an embodiment of an anoscope with adjustable window and flattenable mucosa according to the present invention;

[0028] Figure 2 is Figure 1 the enlarged structural diagram at A in

[0029] Figure 3 is a schematic cross-sectional structural diagram of an embodiment of an anoscope with adjustable window and flattenable mucosa according to the present invention;

[0030] Figure 4 is Figure 3 the enlarged structural diagram at B in

[0031] Figure 5 is a schematic structural diagram during the surgical operation of an embodiment of an anoscope with adjustable window and flattenable mucosa according to the present invention;

[0032] Figure 6Schematic cross-sectional structure diagram during surgical operation in an embodiment of an anoscope with an adjustable window and a flattenable mucosa according to the present invention;

[0033] Figure 7 is Figure 6 enlarged structural schematic diagram of part C in;

[0034] Figure 8 Schematic structural diagram of the sliding piece part in an embodiment of an anoscope with an adjustable window and a flattenable mucosa according to the present invention;

[0035] Figure 9 Schematic structural diagram of the inner core rod part in an embodiment of an anoscope with an adjustable window and a flattenable mucosa according to the present invention;

[0036] The main component symbols are explained as follows:

[0037] Body 1, operation window 10, retaining ring 11, handle 12, strip plate 13,

[0038] Inner core rod 2, guiding head 21, handle 22, mounting plate 23, retaining disk 24,

[0039] Sliding piece 3, V-shaped elastic piece 30, mounting table 31, mounting groove 32,

[0040] Hinged rod 4, accommodating groove 40, sphere 41,

[0041] Guiding groove 5, exit groove 51, communicating groove 52, notch 53, push-pull block 54,

[0042] Ball plunger 6, hemispherical groove 61,

[0043] Sliding part 7, L-shaped rib 70, first marking line 71, second marking line 72, third marking line 73. Detailed implementation manners

[0044] The present invention will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that in the drawings or the description of the specification, similar or identical parts are all labeled with the same reference numerals. The implementation manners not depicted or described in the drawings are the forms known to those of ordinary skill in the art. Additionally, the directional terms mentioned in the embodiments, such as "up", "down", "top", "bottom", "left", "right", "front", "rear", etc., are only references to the directions in the drawings and are not used to limit the protection scope of the present invention.

[0045] Such as Figures 1 to 9As shown in the figure, an anoscope with an adjustable window and a flattenable mucosa according to the present invention includes a main body 1. The main body 1 is a hollow frustum-shaped structure that is smaller at the front and larger at the rear. An opening is provided at the upper part of the main body 1, and a strip-shaped plate 13 is integrally formed in the opening. An operation window 10 penetrating the rear end of the strip-shaped plate 13 is provided on the strip-shaped plate 13. A sliding piece 3 is slidably installed in the operation window 10. Both the strip-shaped plate 13 and the sliding piece 3 are strip-shaped structures with an arc-shaped cross-section. An inner core rod 2 is inserted into the main body 1. An installation disk 23 is fixedly provided on the inner core rod 2. An installation platform 31 is integrally formed on the inner wall of the strip-shaped plate 13 at the front end of the sliding piece 3. A plurality of installation grooves 32 are evenly provided on the installation platform 31. A hinge rod 4 is hinged in the installation groove 32. A V-shaped elastic piece 30 is installed between the hinge rod 4 and the installation platform 31 in the installation groove 32. After the hinge rod 4 is unfolded, it inclines forward from the outside to the inside, and the outer end protrudes from the outer wall of the sliding piece 3. A guiding groove 5 is axially provided on the inner wall of the sliding piece 3. An exit groove 51 is provided at one end of the guiding groove 5 away from the installation platform 31. The guiding groove 5 and the exit groove 51 are staggered from each other. A communication groove 52 is circumferentially provided on the inner wall of the sliding piece 3 between the guiding groove 5 and the exit groove 51. A notch 53 is provided on the installation disk 23. A push-pull block 54 is fixedly provided in the notch 53 of the installation disk 23. The push-pull block 54 is inserted into the guiding groove 5. A fixing mechanism for fixing the sliding piece 3 is provided on the strip-shaped plate 13.

[0046] As Figure 3 shown, the front end of the main body 1 converges inward to form a retaining ring 11. A guiding head 21 is fixedly provided at the head end of the inner core rod 2, and a handle 22 is fixedly provided at the tail end. The guiding head 21 is inserted into the retaining ring 11 and protrudes from the retaining ring 11. The outer wall of the guiding head 21 is smoothly transitioned with the outer wall of the retaining ring 11 and seals the front end of the retaining ring 11. The outer diameter of the guiding head 21 is smaller than the inner diameter of the sliding piece 3. While the guiding head 21 seals the retaining ring 11 formed by the inward convergence of the front end of the main body 1, the arc-shaped surface formed by the guiding head 21 and the retaining ring 11 increases the matching with the frustum shape. The retaining ring 11 can also support the guiding head 21, thereby preventing the inner core rod 2 from shaking during use, and the practicability is relatively strong. At the same time, by restricting the outer diameter of the guiding head 21 and the inner diameter of the sliding piece 3, the influence of the movement of the guiding head 21 on the sliding piece 3 is avoided, and the practicability is relatively strong.

[0047] As Figure 9As shown in the figure, a stop disk 24 is fixedly arranged between the inner core rod 2 and the mounting disk 23 and the handle 22. The stop disk 24 is bent. When the guiding head 21 is inserted into the retaining ring 11 and protrudes from the retaining ring 11, the edge of the stop disk 24 abuts against the inner wall of the body 1. When the push-pull block 54 is located in the communication groove 52, the stop disk 24 is located outside the body 1. Through the mutual cooperation of the stop disk 24 and the body 1, during the process of inserting the anoscope into the anal canal of the patient, the stop disk 24 and the mounting disk 23 cooperate to complete the positioning between the body 1 and the inner core rod 2, avoiding the deflection of the inner core rod 2. At the same time, the bent structure of the stop disk 24 can better adapt to the special-shaped structure at the rear end of the anoscope, and has strong practicability.

[0048] As Figure 8 and Figure 9 shown in the figure, a first marking line 71 is provided on the rear wall of the sliding piece 3, and a second marking line 72 is provided on the rear wall of the mounting disk 23. When the push-pull block 54 is located in the exit groove 51, the first marking line 71 is aligned with the second marking line 72. Through the mutual cooperation of the first marking line 71 and the second marking line 72, when the push-pull block 54 is installed in the exit groove 51, it is only necessary to align the first marking line 71 and the second marking line 72, and then push the inner core rod 2 forward, which is more convenient to use.

[0049] As Figure 9 shown in the figure, a third marking line 73 is provided on the rear wall of the stop disk 24. When the push-pull block 54 is located in the guiding groove 5, the first marking line 71 is aligned with the third marking line 73.

[0050] A handle 12 is fixedly arranged on the outer wall at the rear end of the body 1. Operating the anoscope through the handle 12 is more convenient to use.

[0051] The outer wall of the sliding piece 3 coincides with the outer wall of the strip plate 13. Through the coincidence of the outer wall of the sliding piece 3 and the outer wall of the strip plate 13, during the process of inserting the anoscope into the anal canal of the patient, it is possible to avoid pinching or even tearing the mucosa and skin of the lower rectum and the hemorrhoid area of the patient due to the connection difference between the outer wall of the sliding piece 3 and the outer wall of the strip plate 13, and has strong practicability.

[0052] As Figure 8 and Figure 9 shown in the figure, the push-pull block 54 is T-shaped, and the cross-sections of the guiding groove 5 and the exit groove 51 are both T-shaped. Through the mutual cooperation of the T-shaped push-pull block 54 and the guiding groove 5 and the exit groove 51, when the free end of the push-pull block 54 is located in the guiding groove 5 and the exit groove 51, the sliding piece 3 forms a radial limit on the inner core rod 2, avoiding the problem that the push-pull block 54 slides out of the guiding groove 5 and the exit groove 51 along the diameter direction of the sliding piece 3, and further causing the separation between the inner core rod 2 and the sliding piece 3, and is more convenient to use.

[0053] As Figure 1 , Figure 2 andFigure 8 As shown, the fixing mechanism includes a ball plunger 6 radially screwed onto the strip plate 13. A plurality of hemispherical grooves 61 are formed on the outer wall of the sliding piece 3, and the plurality of hemispherical grooves 61 are linearly arranged on the sliding piece 3. The inner core rod 2 drives the sliding piece 3 to slide backward. When the sliding piece 3 slides in place, the ball head part of the ball plunger 6 is clamped into the corresponding hemispherical groove 61 to complete the fixation between the strip plate 13 and the sliding piece 3. The hemispherical grooves 61 are provided in plurality and linearly arranged, which can realize multi-gear fixation of the sliding piece 3, and further realize the fixation of windows of different sizes. The structure is simple, easy to use, and has strong practicability.

[0054] As Figure 1 、 Figure 2 and Figure 8 As shown, sliding parts 7 are integrally formed on both sides of the sliding piece 3 on the inner side surface of the strip plate 13. L-shaped ridges 70 are integrally formed on the inner wall of the strip plate 13 at positions corresponding to the sliding parts 7. A sliding groove is formed between the L-shaped ridges 70 and the strip plate 13, and the sliding parts 7 are slidably installed in the sliding groove. Through the mutual cooperation of the sliding parts 7 and the sliding groove, the sliding installation between the sliding piece 3 and the strip plate 13 is completed. The structure is simple, easy to manufacture, and has strong practicability.

[0055] As Figure 4 and Figure 7 As shown, flanges are provided at both ends of the V-shaped elastic piece 30. Card slots are formed on both the sliding piece 3 and the hinge rod 4, and the flanges are clamped in the card slots. Through the mutual cooperation of the flanges and the card slots, the installation of the V-shaped elastic piece 30 is completed. The structure is simple, easy to install, and has strong practicability.

[0056] As Figure 4 As shown, a receiving groove 40 for receiving the hinge rod 4 is formed on the inner wall of the strip plate 13 at a position corresponding to the hinge rod 4. Through the mutual cooperation of the hinge rod 4 and the receiving groove 40, after the hinge rod 4 is folded, the free end of the hinge rod 4 remains in the receiving groove 40, avoiding the problem of excessive bending of the V-shaped elastic piece 30 caused by excessive rotation of the hinge rod 4, and further causing the problem of too low service life of the V-shaped elastic piece 30.

[0057] As Figure 4 and Figure 7 As shown, the hinge rod 4 is cylindrical, and a sphere 41 is provided at the free end of the hinge rod 4. The sphere 41 and the hinge rod 4 are smoothly transitioned. The sphere 41 is used to contact the anal canal and rectal mucosa instead of the hinge rod 4. By using the unique smooth curved surface of the sphere 41, the damage to the soft tissue of the anal canal and rectal mucosa, and even the anastomosis and wound sites, etc. caused by the pulling of the hinge rod 4 during operation is avoided. At the same time, through the setting of the sphere 41 and the comb-like arrangement of each hinge rod 4, it is more conducive to safely flattening the mucosal structure, and has strong practicability.

[0058] The body 1, the strip plate 13, and the sliding piece 3 are all made of transparent materials, which is more convenient for positioning the surgical operation area, convenient and fast, and has strong practicability.

[0059] In this embodiment, when in use, insert the sliding piece 3 into the operation window 10 and push it forward. Then insert the guiding head 21 from one end of the body 1 away from the retaining ring 11 until the push-pull block 54 abuts against the sliding piece 3. Then rotate the inner core rod 2 through the handle 22 so that the push-pull block 54 aligns with the exit groove 51, and continue to push the guiding head 21 forward until the push-pull block 54 enters the communication groove 52. After that, rotate the handle 22 so that the push-pull block 54 enters the guiding groove 5 from the communication groove 52, and then push the inner core rod 2 forward until the guiding head 21 abuts against the inner wall of the retaining ring 11 to complete the installation (as Figure 1 shown);

[0060] After the installation is completed, insert the body 1 together with the inner core rod 2 into the patient's anus so that the body 1 enters the patient's anal canal. Then, according to the part of the planned surgical operation required in the patient's anal canal, rotate the anoscope so that the operation window 10 closed by the sliding piece 3 aligns with the planned surgical operation part;

[0061] After that, hold the handle 12 to fix the body 1, and pull the handle 22 so that the inner core rod 2 moves outwards until the push-pull block 54 enters the communication groove 52;

[0062] Continue to pull the handle 22 to drive the sliding piece 3 to move backward, thereby causing the articulated rod 4 to disengage from the receiving groove 40 and pop outwards under the action of the V-shaped elastic piece 30 to form a comb. The sliding piece 3 continues to move outwards, and the spherical body 41 of the comb pulls the anorectal mucosa to flatten and support the anorectal mucosa, preventing the anorectal mucosa from accumulating in the operation window 10 and forming a hill-like bulge;

[0063] until the spherical part of the ball plunger 6 is caught in the corresponding hemispherical groove 61 (as Figure 4 and Figure 5 shown). Then rotate and pull the handle 22 in the reverse direction so that the push-pull block 54 leaves the sliding piece 3 from the communication groove 52 through the exit groove 51. Continue to pull until the guiding head 21 disengages from the body 1. At this time, the surgical operation on the planned surgical operation part can be performed;

[0064] After the surgical operation is completed, re-insert the guiding head 21 into the body 1 so that the mounting disc 23 abuts against the outer end of the sliding piece 3. Continue to push so that the ball plunger 6 disengages from the hemispherical groove 61, driving the sliding piece 3 to slide inwards until the articulated rod 4 re-enters the receiving groove 40 to complete the folding of the comb. Finally, pull out the body 1 from the patient's anal canal.

[0065] The above has introduced in detail an anoscope with adjustable window opening and flattenable mucosa provided by the present invention. The description of the specific embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An anoscope with an adjustable window and a flattenable mucosa, characterized in that: It includes a main body (1), the main body (1) has a hollow frustum-shaped structure that is smaller at the front and larger at the back. An opening is provided at the upper part of the main body (1). A strip-shaped plate (13) is integrally formed within the opening. An operation window (10) that penetrates the rear end of the strip-shaped plate (13) is provided on the strip-shaped plate (13). A sliding piece (3) is slidably installed within the operation window (10). Both the strip-shaped plate (13) and the sliding piece (3) are strip-shaped structures with an arc-shaped cross-section. An inner core rod (2) passes through the main body (1). An installation disk (23) is fixedly provided on the inner core rod (2). An installation platform (31) is integrally formed on the inner wall of the strip-shaped plate (13) at the front end of the sliding piece (3). A number of installation slots (32) are evenly provided on the installation platform (31). A hinge rod (4) is hinged within the installation slot (32). A V-shaped elastic piece (30) is installed between the hinge rod (4) and the installation platform (31) within the installation slot (32). After the hinge rod (4) is unfolded, it inclines forward from the outside to the inside, and the outer end protrudes from the outer wall of the sliding piece (3). The unfolded hinge rod (4) forms a comb to flatten and support the anorectal mucosa. A guiding groove (5) is axially provided on the inner wall of the sliding piece (3). An exit groove (51) is provided at one end of the guiding groove (5) away from the installation platform (31). The guiding groove (5) and the exit groove (51) are offset from each other. A communication groove (52) is circumferentially provided on the inner wall of the sliding piece (3) between the guiding groove (5) and the exit groove (51). A notch (53) is provided on the installation disk (23). A push-pull block (54) is fixedly provided within the notch (53) of the installation disk (23). The push-pull block (54) passes through the guiding groove (5). A fixing mechanism for fixing the sliding piece (3) is provided on the strip-shaped plate (13); The front end of the main body (1) converges inward to form a retaining ring (11). A guiding head (21) is fixedly provided at the head end of the inner core rod (2), and a handle (22) is fixedly provided at the tail end. The guiding head (21) passes through the retaining ring (11) and protrudes from the retaining ring (11). The outer wall of the guiding head (21) is smoothly transitioned with the outer wall of the retaining ring (11) and seals the front end of the retaining ring (11). The outer diameter dimension of the guiding head (21) is smaller than the inner diameter dimension of the sliding piece (3); A retaining disk (24) is fixedly provided between the installation disk (23) and the handle (22) on the inner core rod (2). The retaining disk (24) is bent. When the guiding head (21) passes through the retaining ring (11) and protrudes from the retaining ring (11), the edge of the retaining disk (24) abuts against the inner wall of the main body (1). When the push-pull block (54) is located within the communication groove (52), the retaining disk (24) is located outside the main body (1).

2. The anoscope with an adjustable window and a flattenable mucosa according to claim 1, characterized in that: A first marking line (71) is provided on the rear wall of the sliding piece (3). A second marking line (72) is provided on the rear wall of the installation disk (23). When the push-pull block (54) is located within the exit groove (51), the first marking line (71) is aligned with the second marking line (72).

3. The anoscope with an adjustable window and a flattenable mucosa according to claim 1, characterized in that: The outer wall of the sliding piece (3) coincides with the outer wall of the strip plate (13).

4. The anoscope with an adjustable window and a flattenable mucosa according to claim 1, characterized in that: The push-pull block (54) is T-shaped, and the cross-sections of the guide groove (5) and the exit groove (51) are both T-shaped.

5. The anoscope with an adjustable window and a flattenable mucosa according to claim 1, characterized in that: The fixing mechanism includes a ball plunger (6) radially screwed on the strip plate (13), and a plurality of hemispherical grooves (61) are formed in the outer wall of the sliding piece (3), and the plurality of hemispherical grooves (61) are linearly arranged on the sliding piece (3).

6. The anoscope with an adjustable window and a flattenable mucosa according to claim 1, characterized in that: Sliding parts (7) are integrally formed on both sides of the sliding piece (3) on the inner side surface of the strip plate (13), L-shaped ridges (70) are integrally formed on the inner wall of the strip plate (13) at positions corresponding to the sliding parts (7), a sliding groove is formed between the L-shaped ridges (70) and the strip plate (13), and the sliding parts (7) are slidably installed in the sliding groove.

7. The anoscope with an adjustable window and a flattenable mucosa according to claim 1, characterized in that: A receiving groove (40) for receiving the hinge rod (4) is formed in the inner wall of the strip plate (13) at a position corresponding to the hinge rod (4).

8. The anoscope with an adjustable window and a flattenable mucosa according to claim 1, characterized in that: The hinge rod (4) is cylindrical, a sphere (41) is provided at the free end of the hinge rod (4), and the sphere (41) is smoothly transitioned with the hinge rod (4).

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