Anal dilatation device

Abstract

The utility model relates to the technical field of medical auxiliary instruments, and discloses an anal dilatation device which comprises an anal dilatation body, a middle rotating cylinder is rotatably connected to the anal dilatation body, a front end cylinder is slidably connected to the front end of the middle rotating cylinder, the front end cylinder and the middle rotating cylinder form an anal dilatation front end with the adjustable length, and an observation window is formed in the side wall of the front end cylinder. The front end of the front end cylinder is provided with an opening part, and the front end cylinder is connected with an illumination part right facing the observation window. The anal dilatation body is detachably connected with a push rod, the front end of the push rod is fixedly connected with a round-head push head matched with the opening part, and the push rod is connected with a matching part detachably matched with the inner wall of the middle rotary drum. The anal dilatation device solves the problems that an anal dilatation device in the prior art is poor in visual field and poor in universality in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to an anal dilator. Background Art

[0002] During anorectal or hemorrhoid surgery, the anus must be dilated before other surgical instruments are inserted for examination or treatment. The current procedure involves the doctor inserting a finger into the patient's anus, then using both hands to pre-dilate the anus, inserting the anal dilator, and finally using the dilator to complete the dilation procedure. However, when pre-dilating the anus with their fingers, the doctor often applies excessive force, damaging the patient's anal sphincter and causing anal fissures, which can cause unnecessary harm to the patient.

[0003] In order to avoid damage caused by the doctor's fingers pre-dilatating the anus, existing anal dilators usually have a conical front end to reduce the risk of injury to the patient during use. However, existing anal dilators are fixed in length and have poor versatility for different patients. Different types of examinations or surgeries, such as rectal cancer surgery, hemorrhoid surgery, and other types of surgery, require different lengths for dilating the anus. Therefore, the versatility of existing anal dilators is poor. In addition, when using existing anal dilators, the field of view after the anus is dilated is poor, which is not conducive to accurate examination or surgery. Utility Model Content

[0004] The utility model aims to provide an anal dilator to solve the problems of poor visual field and poor versatility of anal dilators in the prior art during use.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: an anal dilator, including an anal dilator body, an intermediate rotating cylinder is rotatably connected to the anal dilator body, the front end of the intermediate rotating cylinder is slidably connected to the front end cylinder, the front end cylinder and the intermediate rotating cylinder form an anal dilator front end with adjustable length, an observation window is provided on the side wall of the front end cylinder, the front end of the front end cylinder is provided with an opening portion, and the front end cylinder is connected to a lighting portion facing the observation window; a push rod is detachably connected to the anal dilator body, the front end of the push rod is fixedly connected to a round-headed push head that cooperates with the opening portion, and the push rod is connected to a cooperating portion that is detachably cooperating with the inner wall of the intermediate rotating cylinder.

[0006] The principle and beneficial effects of this solution are as follows: in this application, the middle rotating cylinder and the front end cylinder are slidably connected to each other to form a length-adjustable anal dilator front end. When the middle rotating cylinder is rotatably connected to the anal dilator body, the anal dilator front end can be adjusted to a suitable length according to the use needs, thereby meeting the use scenarios of different lengths. At the same time, in this application, a push rod is detachably connected to the anal dilator body. The rounded push head connected to the push rod cooperates with the opening on the front end cylinder. When in use, the rounded end of the rounded push head protrudes outside the opening. By pushing the push rod with an external force, the mating portion can be connected to the inner wall of the middle rotating cylinder. Under the thrust of the push rod, the anal dilator front end can be easily pushed to the predetermined position in the patient's anus. The presence of the rounded push head makes the pushing process more convenient and less harmful to the patient. Moreover, after the anal dilator front end is pushed to the predetermined position, the push rod and the rounded push head can be removed, leaving space at the opening at the front end of the front end cylinder, providing operating space for hemorrhoid surgery, etc.

[0007] In addition, the intermediate rotating cylinder in the present application is rotatably connected to the anal expander body. Therefore, after the front end of the anal expander is connected to the anal expander body and pushed to the predetermined position, the push rod can be rotated. Since the matching portion is in a connected relationship with the inner wall of the intermediate rotating cylinder at this time, when the push rod is rotated, the matching portion will be used to drive the entire front end of the anal expander to rotate, thereby causing the observation window of the front end cylinder to rotate to a suitable position, so as to better complete inspections and surgical treatments.

[0008] In this application, a lighting part is connected to the front end tube, and the lighting part can be used to provide lighting for the observation window during use, making it more convenient to view the patient part shown in the observation window, thereby better completing the examination or surgical treatment.

[0009] Preferably, as an improvement, a connecting portion is connected between the front end cylinder and the middle rotating cylinder.

[0010] In this solution, after adjusting the connection position of the front end tube and the middle rotating tube to form a front end of the anal dilator of appropriate length, the front end tube and the middle rotating tube are fixed by the provided connection part to prevent the front end tube and the middle rotating tube from loosening during use, thereby ensuring the stability of the entire equipment.

[0011] Preferably, as an improvement, a protrusion and a slide groove that slide together are provided between the intermediate rotating cylinder and the front end cylinder, and the protrusion and the slide groove are both arranged along the central axis direction of the front end cylinder.

[0012] In this solution, the cooperation of the protrusion and the slide groove structure allows the middle rotating cylinder and the front end cylinder to slide relative to each other to form anal dilator front ends of different lengths. The structure is simple and stable in use.

[0013] Preferably, as an improvement, there are multiple protrusions, and the multiple protrusions are evenly arranged axially along the outer wall of the front end tube.

[0014] In this solution, there are multiple protrusions, which further improve the stability and smoothness of the sliding adjustment process of the front end cylinder and the middle rotating cylinder. At the same time, the protrusions are arranged on the outer wall of the front end cylinder. After adjusting the positions of the front end cylinder and the middle rotating cylinder, the front end cylinder and the middle rotating cylinder still form an internally sealed conical cylinder structure, which is more comfortable and convenient during use.

[0015] Preferably, as an improvement, the mating portion includes a clamping plate, which is movably connected to the push rod along the axial direction of the push rod, and a slot is provided on the clamping plate, and a block that engages with the slot is fixedly connected to the upper portion of the intermediate rotating drum.

[0016] In this solution, the clamping plate is connected to the push rod along the axial direction of the push rod. After adjusting the length of the front end of the anal dilator, the position of the clamping plate on the push rod can be adjusted so that when the round head end of the front end of the push rod cooperates with the opening, the slot on the clamping plate can be accurately engaged with the clamping block, so that the front end of the anal dilator can be rotated during use to adjust the observation window to the appropriate position.

[0017] Preferably, as an improvement, the connecting portion includes a fixing screw, a T-slot is provided on the outer wall of the intermediate rotating cylinder along the axial direction of the intermediate rotating cylinder, the screw head diameter of the fixing screw is larger than the width of the T-slot, and a threaded hole is provided on the front end cylinder to cooperate with the fixing screw.

[0018] In this solution, when the front end tube and the middle rotating tube are in different matching positions to form anal dilator front ends of different lengths, the fixing screws are in different positions in the T-slot and fix the front end tube and the middle rotating tube, so that they are firmly fixed after the front end tube and the middle rotating tube are adjusted.

[0019] Preferably, as an improvement, there are multiple fixing screws, and the multiple fixing screws are arranged along the axial direction of the middle rotating drum.

[0020] In this solution, multiple fixing screws are provided to improve the stability of the connection and fixation between the front end cylinder and the middle rotating cylinder.

[0021] Preferably, as an improvement, the lighting part is an LED lamp, and the LED lamp is fixedly connected to the front end of the observation window.

[0022] In this solution, LED lamps are used for lighting, which have a simple structure and good lighting effect. The LED lamps are fixed at the front end of the observation window and will not interfere with the field of vision of medical staff during lighting, thereby achieving better lighting effect.

[0023] Preferably, as an improvement, the brightness of the LED lamp is adjustable.

[0024] In this solution, the brightness of the LED light is set to be adjustable, so that the LED light can be adjusted to the appropriate brightness as needed during use, achieving better inspection and surgery, etc.

[0025] Preferably, as an improvement, the anal dilator body has a length adjustment range of 5-20 cm.

[0026] In this solution, the adjustable length range of the anal expander body is controlled within 5-20 cm according to the actual application length requirements during use, so as to meet the needs of different surgical sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of Example 1 of the present utility model.

[0028] Figure 2 for Figure 1 Exploded diagram.

[0029] Figure 3 This is a schematic diagram of the connection between the front end cylinder, the middle rotating cylinder and the clamping disk in the first embodiment of the present invention.

[0030] Figure 4 This is a schematic diagram of the connection between the front tube and the LED lamp in Example 1 of the present utility model. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] The figure marks in the drawings of the specification include: anal dilator body 1, ear 2, middle rotating cylinder 3, slide groove 301, T-slot 302, clamping block 303, front end cylinder 4, opening 401, protrusion 402, chamfer 403, observation window 404, fixing screw 5, push rod 6, tightening surface 601, handle 7, round head end 8, tightening plate 9, clamping slot 901, LED light 10.

[0033] Example 1

[0034] This embodiment is as shown in the attached Figure 1 As shown: the anal dilator includes a conical anal dilator body 1, and ears 2 are integrally formed on both sides of the rear end of the anal dilator body 1. An annular groove is integrally formed on the inner wall of the front end of the anal dilator body 1, and the front end of the anal dilator body 1 is connected to an intermediate rotating cylinder 3. The intermediate rotating cylinder 3 rotates with the annular groove so that the intermediate rotating cylinder 3 can rotate relative to the central axis of the anal dilator body 1 during use. As for the installation form of the intermediate rotating cylinder 3, the intermediate rotating cylinder 3 can be set to stainless steel material, so that the intermediate rotating cylinder 3 has a certain elastic compression performance. When in use, the rear end of the intermediate rotating cylinder 3 is directly driven to deform and snap into the annular groove. No further details are given here.

[0035] Combine Figure 1 and Figure 2 The front end of the middle rotating cylinder 3 is connected to the front end cylinder 4 along the central axis of the anal expansion body 1. Figure 4 The front end of the front tube 4 is provided with an opening 401, allowing the front tube 4 and the intermediate rotating tube 3 to form an adjustable length anal dilator. The length adjustment range of the anal dilator is 5-20 cm, and in this embodiment, 12 cm is preferred. To facilitate sliding adjustment of the front tube 4 and the intermediate rotating tube 3, mutually slidingly engaged protrusions 402 and chute 301 are provided between the intermediate rotating tube 3 and the front tube 4. In this embodiment, there are multiple protrusions 402, and the multiple protrusions 402 are integrally formed on the outer wall of the front tube 4. The multiple protrusions 402 are evenly arranged along the circumference of the outer wall of the front tube 4, and the chute 301 is integrally formed on the intermediate rotating tube 3.

[0036] At the same time, in order to stabilize the positions of the front end cylinder 4 and the middle rotating cylinder 3 after adjustment, a connecting portion is connected between the front end cylinder 4 and the middle rotating cylinder 3 in this embodiment. Figure 2 and Figure 3 Specifically, the connection portion includes a fixing screw 5. A T-slot 302 is provided on the outer wall of the intermediate rotating cylinder 3 along the axial direction of the intermediate rotating cylinder 3. The diameter of the screw head of the fixing screw 5 is larger than the width of the T-slot 302, and the thickness of the screw head is less than the depth of the large-diameter section of the T-slot 302. At the same time, a threaded hole is provided on the front end cylinder 4 for threaded connection with the fixing screw 5. When the front end cylinder 4 and the intermediate rotating cylinder 3 are adjusted to different positions to form anal dilator front ends of different lengths, the fixing screw 5 is located at different positions within the T-slot 302. At this time, tightening the fixing screw 5 can fix the front end cylinder 4 and the intermediate rotating cylinder 3. In addition, to improve the stability of the fixing screw 5 in fixing the front end cylinder 4 and the intermediate rotating cylinder 3, the number of fixing screws 5 can be set to multiple, or the number of T-slots 302 can be set to multiple, and the multiple T-slots 302 can be evenly arranged along the circumference of the intermediate rotating cylinder 3. The details will not be repeated here.

[0037] Combine Figure 1 and Figure 2 The anal expander body 1 is detachably connected to a push rod 6, and a handle 7 is integrally formed at the rear end of the push rod 6. A round head end 8 is welded to the front end of the push rod 6. The diameter of the round head end 8 is equal to the diameter of the opening 401, so that the front end round head part of the round head end 8 can protrude outward from the opening 401 of the front end tube 4, and in order to make the round head end 8 smoothly match the outer wall of the front end tube 4 after protruding from the opening 401, a chamfer 403 is opened on the outer wall of the front end of the front end tube 4 in this embodiment.

[0038] At the same time, in this embodiment, the middle part of the push rod 6 is connected to a mating portion that is detachably mated with the inner wall of the intermediate drum 3. The mating portion includes a tightening disc 9 that is movably connected to the push rod 6 along the axial direction of the push rod 6. Specifically, Figure 2 and Figure 3 , a tightening screw is connected to the tightening disc 9, and a tightening surface 601 that cooperates with the tightening screw is provided on the side wall of the push rod 6. During the fixing process, the tightening disc 9 can be fixed to the push rod 6 by simply tightening the tightening screw. In addition, in this embodiment, a card slot 901 is provided on the outer edge of the tightening disc 9, and a card block 303 that engages with the card slot 901 is welded on the inner wall of the middle rotating cylinder 3. At the same time, an observation window 404 is provided on the side wall of the front end cylinder 4, and correspondingly, a through window that cooperates with the observation window 404 is provided on the side wall of the middle rotating cylinder 3. During use, the observation window 404 can provide a field of view of the side wall; in addition, combined with Figure 4 In order to facilitate clearer observation or photography through the observation window 404, in this embodiment, a lighting unit is connected to the front end tube 4 facing the observation window 404. The lighting unit specifically uses an LED lamp 10, and the LED lamp 10 is installed at the front end of the observation window 404 to avoid interference with the operator's field of vision during use.

[0039] When the anal dilator is needed, first adjust the front end of the anal dilator to an appropriate length according to the usage requirements. During the length adjustment process, first loosen the fixing screw 5, and then slide the front end tube 4 along the axial direction of the middle rotating cylinder 3, so that the front end tube 4 and the middle rotating cylinder 3 form an anal dilator front end of appropriate length, and then tighten the fixing screw 5 to fix the position of the front end tube 4 and the middle rotating cylinder 3 to form an anal dilator front end of stable length. Then, the push rod 6 is inserted into the anal expander body 1, so that the round-headed pusher protrudes out of the opening 401, and the clamping block 303 and the clamping groove 901 are engaged with each other. At this time, the tightening plate 9 is against the inner wall of the middle rotating cylinder 3, and then the round-headed end 8 is kept protruding out of the opening 401. The operator pushes the handle 7 with force to push the front end of the anal expander to the appropriate position of the patient's anus. After pushing it to the appropriate position, the push rod 6 can be rotated to rotate the tightening plate 9. When the tightening plate 9 rotates, it will drive the entire front end of the anal expander to rotate, so that the observation window 404 is rotated to the predetermined position, so that the operator can check the predetermined position and perform surgical treatment, etc.

[0040] Example 2

[0041] The difference between Example 2 and Example 1 is that: in this embodiment, the brightness of the LED lamp 10 is set to be adjustable. As for the specific setting method, it can be controlled by the control panel and control buttons. Since using control buttons and control panels to control the brightness of the LED lamp 10 is a conventional technical means in this field, the control principle and specific control structure will not be repeated in this embodiment.

[0042] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An anal dilator, comprising an anal dilator body, characterized in that: The anal dilator body is rotatably connected to an intermediate rotating cylinder, and the front end of the intermediate rotating cylinder is slidably connected to a front end cylinder. The front end cylinder and the intermediate rotating cylinder form an anal dilator front end with adjustable length. An observation window is provided on the side wall of the front end cylinder, and an opening is provided at the front end of the front end cylinder, and a lighting part facing the observation window is connected to the front end cylinder; a push rod is detachably connected to the anal dilator body, and a round-headed push head that cooperates with the opening is fixedly connected to the front end of the push rod, and a cooperating part that detachably cooperates with the inner wall of the intermediate rotating cylinder is connected to the push rod.

2. The anal dilator according to claim 1, characterized in that: A connecting portion is connected between the front end cylinder and the middle rotating cylinder.

3. The anal dilator according to claim 2, characterized in that: A protrusion and a sliding groove that slide in cooperation with each other are provided between the middle rotating cylinder and the front end cylinder, and both the protrusion and the sliding groove are arranged along the central axis direction of the front end cylinder.

4. The anal dilator according to claim 3, characterized in that: There are multiple protrusions, and the multiple protrusions are evenly arranged axially along the outer wall of the front end tube.

5. The anal dilator according to claim 1, characterized in that: The matching part includes a clamping plate, which is movably connected to the push rod along the axial direction of the push rod. A clamping groove is provided on the clamping plate, and a clamping block engaged with the clamping groove is fixedly connected to the upper part of the intermediate rotating cylinder.

6. The anal dilator according to claim 2, characterized in that: The connecting part includes a fixing screw, a T-slot arranged along the axial direction of the middle rotating cylinder is opened on the outer wall of the middle rotating cylinder, the screw head diameter of the fixing screw is larger than the width of the T-slot, and a threaded hole matching the fixing screw is provided on the front end cylinder.

7. The anal dilator according to claim 6, characterized in that: There are multiple fixing screws, and the multiple fixing screws are arranged along the axial direction of the middle rotating drum.

8. The anal dilator according to claim 1, characterized in that: The lighting part is an LED lamp, which is fixedly connected to the front end of the observation window.

9. The anal dilator according to claim 8, characterized in that: The brightness of the LED lamp is adjustable.

10. The anal dilator according to any one of claims 1 to 9, characterized in that: The length adjustment range of the front end of the anal dilator is 5-20 cm.

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