Automatic dilator

Abstract

The invention relates to the technical field of medical instruments, and discloses an automatic dilator which comprises a control tube, a plurality of movable petals and an elastic sleeve, the movable petals are arranged at the end of the control tube, and the movable petals are connected with the end of the control tube through rotating shafts; the elastic sleeve is arranged on the outer side of the control pipe, the movable petals are connected with the inner wall of the elastic sleeve, and the movable petals can drive the elastic sleeve to be close to or away from the control pipe; a control button is arranged at the end of the control pipe and can control the movable petals to rotate around the rotating shaft, and the opening size can be freely controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an automatic dilator. Background Art

[0002] Enterostomy is a surgical procedure to artificially open an opening in the abdominal wall, pull a section of the intestine out of the abdominal cavity, and sew the opening to the abdominal wall for the discharge of feces or urine. However, in actual operation, the skin and mucosa around the enterostomy will naturally shrink. If the correct operation of dilating the enterostomy is not maintained after the operation, it will cause complications of enterostomy stenosis. In this case, enterostomy reconstruction surgery must be performed, which will not only make the patient suffer the pain of a second operation, but also cause psychological trauma to the patient.

[0003] According to incomplete statistics, more than 100,000 patients in my country need permanent intestinal stoma surgery every year. Stoma stenosis is one of the most common complications after colorectal cancer surgery. It can occur at any time after surgery. Stoma stenosis causes patients to have difficulty in defecation, and in severe cases, it can block feces. Mild stoma stenosis can be improved by anal dilation, while severe cases require surgical treatment. Therefore, the prevention and early treatment of intestinal stoma stenosis is particularly important.

[0004] Stoma dilation is usually performed using the patient's fingers or dilators. Among them, finger dilation refers to the patient's index finger or little finger dilating the anus. 1-2 weeks after surgery, instruct the patient and family members to put on a finger cot, apply paraffin oil, and slowly insert the finger into the stoma. The finger should not be rotated during insertion to avoid mucosal bleeding, and should be retained for 5-10 minutes, 1-2 times / week. Patients with stoma stenosis should dilate the anus every day, starting with the little finger, generally 2-3 times / day. When the patient feels uncomfortable and distended, he should take a deep breath, and after slowly getting better, use the index finger and middle finger, and persist for 3-6 months. However, finger dilation of the stoma is mostly performed by medical staff. After a limited number of demonstrations, it is difficult for patients or family members to fully master it, which often leads to unsatisfactory stoma dilation. Existing dilators are prone to stoma contamination.

[0005] In summary, an automatic dilator that can freely control the opening size is needed. Summary of the invention

[0006] In view of the problem that the expansion operation in the prior art is inconvenient, an automatic expander which can freely control the opening size is proposed.

[0007] In order to solve the above problems, the technical solution of the present invention is:

[0008] An automatic expander comprises a control tube, a movable flap, and an elastic sleeve, wherein a plurality of the movable flaps are arranged at the end of the control tube, and the movable flaps are connected to the end of the control tube via a rotating shaft; the elastic sleeve is arranged outside the control tube, and a plurality of the movable flaps are connected to the inner wall of the elastic sleeve, and the movable flap can drive the elastic sleeve to approach or move away from the control tube; a control button is arranged at the end of the control tube, and the control button can control the movable flap to rotate around the rotating shaft.

[0009] As a preferred technical solution, a detachable built-in power supply is provided in the control tube.

[0010] As a preferred technical solution, a motor structure is provided in the control tube, and the motor structure is movably connected to the movable flap via a gear.

[0011] As a preferred technical solution, the rotating shaft is a gear shaft.

[0012] As a preferred technical solution, the movable flaps are provided with 5 pieces.

[0013] As a preferred technical solution, after the elastic sleeve is expanded, it becomes a hollow tubular structure with openings at both ends.

[0014] Beneficial effects of the present invention:

[0015] The automatic expander of the present invention drives the elastic sleeve to expand by driving the movable valve to open or close relative to the control tube through a motor, and the motor can control the expansion diameter of the elastic sleeve, so that the size of the expansion diameter can be adaptively adjusted according to actual expansion needs to complete the expansion treatment of the stoma. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the contraction state of the automatic expander of the present invention Figure 1 ;

[0017] Figure 2 Schematic diagram of the expansion state of the automatic expander of the present invention Figure 1 ;

[0018] Figure 3 Schematic diagram of the expansion state of the automatic expander of the present invention Figure 2 .

[0019] The reference numerals and components involved in the drawings are as follows:

[0020] 1. Control tube; 2. Movable flap; 3. Elastic sleeve; 11. Control button; 21. Rotating shaft; 22. Bracket. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all 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.

[0023] Please see attached Figure 1 , Figure 2 , Figure 3 , Figure 1 Schematic diagram of the contraction state of the automatic expander of the present invention Figure 1 ; Figure 2 Schematic diagram of the expansion state of the automatic expander of the present invention Figure 1 ; Figure 3 Schematic diagram of the expansion state of the automatic expander of the present invention Figure 2 An automatic dilator includes a control tube 1, a movable flap 2, and an elastic sleeve 3. The control tube 1 is a cylindrical structure with a cavity inside. The inner shell of the cavity is provided with circuit components such as a power supply, a motor, and a control circuit board. A plurality of movable flaps 2 are arranged at the end of the control tube 1. Preferably, in this embodiment, five groups of movable flaps 2 are provided, wherein the five groups of movable flaps 2 are combined to form a circular structure. The movable flap 2 is connected to the end of the control tube 1 through a rotating shaft 21. The movable flap 2 can rotate around the rotating shaft 21 under the drive of the motor. Specifically, the motor drives the secondary rotating shafts 21 of the five groups of movable flaps 2 to rotate simultaneously through gears. A section of the outer contour of the movable flap 2 is extended with a bracket 22, which is connected to the elastic sleeve 3. The elastic sleeve 3 is adapted to the length of the control tube 1 to provide support for the expansion of the elastic sleeve 3; the elastic sleeve 3 is arranged on the outside of the control tube 1, and the elastic sleeve 3 is a hollow tubular structure, and its material can be elastic silicone. One corner of the movable flap 2 is connected to the inner wall of the elastic sleeve 3. When the movable flaps 2 are combined, the elastic sleeve 3 fits the outer wall of the control tube 1. When the movable flaps 2 are opened, the elastic sleeve 3 is away from the outer wall of the control tube 1, that is, the movable flap 2 can drive the elastic sleeve 3 to approach or move away from the control tube 1; a control button 11 is provided at the end of the control tube 1 for controlling the start and rotation angle of the motor, that is, the control button 11 can control the movable flap 2 to rotate around the rotating shaft 21.

[0024] The use of the present invention is as follows: the automatic dilator is used to dilate the stoma. One to two weeks after the operation, the patient and his family are instructed to use the automatic dilator to slowly insert the stoma. After the insertion, the control button 11 is pressed to start the motor. The movable valve 2 rotates around the rotating shaft 21. The elastic sleeve 3 expands under the action of the movable valve 2, driving the stoma to expand. Under the control of the motor, the diameter of the expansion increases from small to large, which is precisely controllable. The automatic dilator of the present invention is retained for 5 to 10 minutes and then withdrawn, 1 to 2 times per week.

[0025] It should be noted that: the automatic expander of the present invention drives the elastic sleeve 3 to expand by opening or closing the movable flap 2 relative to the control tube 1 through a motor, and the motor can control the expansion diameter of the elastic sleeve 3, so that the size of the expansion diameter can be adaptively adjusted according to the actual expansion needs to complete the expansion treatment of the stoma; the control tube 1 is provided with a detachable built-in power supply, and the control tube 1 is provided with a motor structure, and the motor structure is movably connected to the movable flap 2 through gears, which is flexible and controllable to use; the movable flap 2 is provided with 5, which can provide multiple fulcrums for the expansion of the elastic sleeve 3; after the elastic sleeve 3 is expanded, the hollow tubular structure with openings at both ends can facilitate the discharge of the corresponding liquid during the expansion process.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the principle of the present invention. These improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic dilator, characterized in that: It includes a control tube, a movable flap, and an elastic sleeve, wherein a plurality of the movable flaps are arranged at the end of the control tube, and the movable flap is connected to the end of the control tube via a rotating shaft; a bracket is extended from a section of the outer contour of the movable flap, and the length of the bracket is adapted to the length of the elastic sleeve; the elastic sleeve is arranged on the outside of the control tube, and a plurality of the movable flaps are connected to the inner wall of the elastic sleeve, and the movable flap can drive the elastic sleeve to approach or move away from the control tube; a control button is arranged at the end of the control tube, and the control button can control the movable flap to rotate around the rotating shaft.

2. The automatic dilator according to claim 1, characterized in that: A detachable built-in power supply is arranged in the control tube.

3. The automatic dilator according to claim 1, characterized in that: A motor structure is arranged in the control tube, and the motor structure is movably connected to the movable flap via a gear.

4. The automatic dilator according to claim 1, characterized in that: The rotating shaft is a gear shaft.

5. The automatic dilator according to claim 1, characterized in that: The movable flaps are provided with 5 pieces.

6. The automatic dilator according to claim 1, characterized in that: After the elastic sleeve is expanded, it becomes a hollow tubular structure with openings at both ends.

Images