Artificial sphincter mechanism

Abstract

An artificial sphincter mechanism comprises a closed base body, two clamping bodies arranged in the closed base body and power devices corresponding to the two clamping bodies, the power devices are located in the clamping bodies and make contact with the side faces of the closed base body, and the two clamping bodies are symmetrically arranged at the two ends in the closed base body. Multi-dimensional mechanical driving and lead screw gear transmission are used, the reliability of the clamping mechanism is improved, and stress in all directions of a pipe cavity is more uniform in the clamping process; a fixed and closed structure is adopted, in the contraction and relaxation process, it is ensured that the position of the pipe cavity is fixed relative to the machine body, and potential safety hazards caused by dissociation and dislocation of the pipe cavity are effectively prevented.

Description

Technical Field

[0001] The present invention relates to a technology in the field of medical equipment, in particular to an artificial sphincter mechanism. Background Art

[0002] Artificial sphincters are mainly used in the digestive tract and urinary tract. They can restore the function of normal sphincters and maintain the normal function of the human body by contracting, relaxing, and controlling the opening and closing state of the lumen, thereby treating incontinence diseases. Existing artificial sphincter mechanisms are divided into water (air) bladder type and mechanical type. The water (air) bladder type artificial sphincter controls the lumen by filling the clamping bag with water (air), but it is easy to leak its own liquid (air), resulting in functional failure. The mechanical artificial sphincter has a free and non-closed clamping mechanism, which causes the lumen to shift freely when clamped, resulting in uneven force, which can easily cause safety hazards such as tissue damage. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention proposes an artificial sphincter mechanism, which uses multi-dimensional mechanical drive and screw gear transmission to improve the reliability of the clamping mechanism and make the force in all directions of the lumen more uniform during the clamping process; adopts a fixed and closed structure to ensure that the position of the lumen is fixed relative to the body during the contraction and relaxation process, effectively preventing the safety hazards caused by the free dislocation of the lumen.

[0004] The present invention is achieved through the following technical solutions:

[0005] The invention relates to an artificial sphincter mechanism, a closed base body and two clamping bodies arranged therein and a corresponding power device, wherein the power device is located in the clamping body and contacts the side surface of the closed base body, and the two clamping bodies are symmetrically arranged at both ends of the closed base body.

[0006] The closed base comprises: end plates and connecting plates, wherein: the connecting plates on both sides are provided with racks in contact with the power device.

[0007] The corresponding power devices of the two clamping bodies are respectively meshed with the racks on the opposite sides.

[0008] The clamping body comprises: a clamping body mechanism with a plurality of guide pieces, wherein: the guide pieces of the two clamping bodies are arranged opposite to each other to guide the tube cavity to gather along a specific direction.

[0009] The power device comprises: a driving mechanism and a transmission gear set, wherein: the driving mechanism is located in the clamping body mechanism, the transmission gear set is connected to the driving mechanism and meshes with the rack arranged on the connecting plate. Technical Effects

[0010] Compared with the prior art, the present invention adopts a centrally symmetrically distributed clamping body in conjunction with a screw gear transmission. The clamping process makes the intestine more evenly stressed, and at the same time, during the contraction and relaxation process, the position of the lumen is ensured to be fixed relative to the body; through the guide plate device, the safety hazards caused by free dislocation of the lumen can be effectively prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the artificial sphincter mechanism of the present invention;

[0012] Figure 2 It is a schematic diagram of the closed substrate of the present invention;

[0013] Figure 3 It is a schematic diagram of the clamping body of the present invention;

[0014] Figure 4 It is a schematic diagram of the power device of the present invention;

[0015] In the figure: 1 closed base, 2 clamping body, 3 power device, 4 end plate, 5 connecting plate, 6 rack, 7 guide plate, 8 clamping body mechanism, 9 driving mechanism, 10 transmission gear set, 11 gear. DETAILED DESCRIPTION

[0016] like Figure 1 As shown, an artificial sphincter mechanism involved in this embodiment includes: a closed base 1 and two clamping bodies 2 and their corresponding power devices 3 arranged therein, wherein: the power device 3 is located in the clamping body 2 and in contact with the side of the closed base 1, and the two clamping bodies 2 are symmetrically arranged at both ends of the closed base 1.

[0017] like Figure 2 As shown, the closed base 1 includes: end plates 4 and connecting plates 5, wherein: the connecting plates 5 on both sides are provided with racks 6 in contact with the power device 3.

[0018] The corresponding power devices 3 of the two clamping bodies 2 are respectively meshed with the racks 6 on the opposite sides.

[0019] like Figure 3 As shown, the clamping body 2 comprises: a clamping body mechanism 8 with a plurality of guide pieces 7, wherein: the guide pieces 7 of the two clamping bodies 2 are arranged opposite to each other to guide the lumen to converge along a specific direction.

[0020] like Figure 4 As shown, the power device 3 includes: a driving mechanism 9 and a transmission gear set 10, wherein: the driving mechanism 9 is located in the clamping mechanism 8, the transmission gear set 10 is connected to the driving mechanism 9, and is meshed with the rack 6 provided on the connecting plate 5.

[0021] The driving mechanism 9 drives the gear 11 in the transmission gear set 10 to mesh with the rack 6 on the connecting plate 5 to achieve reciprocating motion. When the clamping mechanism 8 moves toward each other at the same time, the lumen is contracted; when the clamping mechanism 8 moves in the opposite direction, the lumen is dilated to restore the normal function of the sphincter. The guide piece 7 installed on the clamping mechanism 8 can move synchronously with the clamping mechanism 8 and guide the lumen to gather or dilate in a specific direction to prevent damage to the lumen tissue.

[0022] After specific actual experiments, the overall height of the artificial sphincter mechanism equipped with two clamping bodies 2 is 1.5mm. When the clamping body is in the dilated state, it can provide a lumen space with a diameter of 10 to 40mm, which is suitable for the dilated state of the digestive tract and urinary tract. When the power device 3 is supplied with a voltage of 3.3V, the clamping body can provide a clamping force of 4N in the contracted state. The artificial sphincter mechanism acts on a lumen with a diameter of 40mm at a time, and its dilation or contraction working time is 5s. The artificial sphincter mechanism realizes the control of the opening and closing state of the lumen to restore the normal function of the human sphincter.

[0023] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. An artificial sphincter mechanism, characterized in that: include: A closed base body and two clamping bodies arranged therein and corresponding power devices, wherein: the power device is located in the clamping body and contacts the side surface of the closed base body, and the two clamping bodies are symmetrically arranged at two ends of the closed base body.

2. The artificial sphincter mechanism according to claim 1, characterized in that: The closed base comprises: end plates and connecting plates, wherein: the connecting plates on both sides are provided with racks in contact with the power device.

3. The artificial sphincter mechanism according to claim 2, characterized in that: The corresponding power devices of the two clamping bodies are respectively meshed with the racks on the opposite sides.

4. The artificial sphincter mechanism according to claim 1, characterized in that: The clamping body comprises: a clamping body mechanism with a plurality of guide pieces, wherein: the guide pieces of the two clamping bodies are arranged opposite to each other to guide the tube cavity to gather along a specific direction.

5. The artificial sphincter mechanism according to any one of claims 1 to 4, characterized in that: The power device comprises: a driving mechanism and a transmission gear set, wherein: the driving mechanism is located in the clamping body mechanism, the transmission gear set is connected to the driving mechanism and meshes with the rack arranged on the connecting plate.

6. The artificial sphincter mechanism according to claim 5, characterized in that: The driving mechanism drives the gear in the transmission gear set to mesh with the rack on the connecting plate to achieve reciprocating motion. When the clamping mechanism moves toward each other at the same time, it forms the effect of contracting the lumen; when the clamping mechanism moves in the opposite direction, it relaxes the lumen and restores the normal function of the sphincter. The guide plate installed on the clamping mechanism can move synchronously with the clamping mechanism and guide the lumen to gather or relax in a specific direction to prevent damage to the lumen tissue.

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