A device for mouth opening training of a patient with maxillofacial fracture

Abstract

The utility model discloses a kind of mouth opening training devices for maxillofacial fracture patient, it is related to medical instrument technical field, the mouth opening training device for this kind of maxillofacial fracture patient, including bottom plate, the top of the bottom plate is fixed with support plate, two through slots of the support plate side wall are limited to slide and have sliding block inside, the back of the support plate is provided with reciprocating mechanism for driving two sliding blocks synchronous reverse movement, the back of the support plate is fixed with electric push rod, the top of the electric push rod is fixed with connecting plate.The utility model is through being arranged bottom plate, support plate, sliding block, reciprocating mechanism electric push rod, connecting plate, pressure sensor, PLC controller and shell, this mouth opening training device uses automatic pressing operation, and it has two kinds of use mode, so it can be freely selected according to the way of maxillofacial fracture patient needs mouth opening training, secondly, the degree of opening of device can also be freely adjusted according to the use of patient, convenient to use.

Claims

1. A mouth-opening training device for patients with maxillofacial fractures, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixed with a support plate (2). The two through slots on the side wall of the support plate (2) are each limited to sliding blocks (3). The back of the support plate (2) is provided with a reciprocating mechanism (4) for driving the two sliding blocks (3) to move synchronously in opposite directions. An electric push rod (5) is fixed to the back of the support plate (2), a connecting plate (6) is fixed to the top end of the electric push rod (5), a pressure sensor (7) is fixed to the top of the connecting plate (6), and a PLC controller (8) fixed to the back of the support plate (2) is provided below the pressure sensor (7). The back of the support plate (2) is fixed with a housing (9) for protecting the electric push rod (5), pressure sensor (7) and PLC controller (8), and a lifting mechanism (10) for adjusting the height of the base plate (1) is provided below the support plate (2).

2. The mouth-opening training device for patients with maxillofacial fractures according to claim 1, characterized in that: The reciprocating mechanism (4) includes a rotating shaft (401) rotatably connected to the back of the support plate (2) via bearings. A drive rod (402) is fixed on the surface of the rotating shaft (401). Both ends of the drive rod (402) are rotatably connected to push rods (403) via pins. The other ends of the two push rods (403) are rotatably connected to corresponding sliding blocks (3) via pins. A motor (404) is fixed on the back of the support plate (2). The output end of the motor (404) is fixedly connected to one end of the rotating shaft (401).

3. The mouth-opening training device for patients with maxillofacial fractures according to claim 1, characterized in that: The lifting mechanism (10) includes a guide seat (1001) disposed below the base plate (1). A double-acting lead screw (1002) is rotatably connected inside the guide seat (1001) via bearings. Both ends of the double-acting lead screw (1002) are threadedly connected to moving blocks (1003) that are adapted to the threads on their surfaces. The top of each moving block (1003) is rotatably connected to two connecting rods (1004) via pins. The other ends of each connecting rod (1004) are rotatably connected to the base plate (1) via pins. A worm gear (1005) is rotatably connected inside the guide seat (1001) via bearings. A worm wheel (1006) is fixed on the surface of the double-acting lead screw (1002). The worm gear (1005) and the worm wheel (1006) are meshed together.

4. The mouth-opening training device for patients with maxillofacial fractures according to claim 3, characterized in that: The guide seat (1001) has two crossbars (1007) fixed inside for limiting the movement of the two moving blocks (1003), and the two moving blocks (1003) slide on the surface of the two crossbars (1007).

5. The mouth-opening training device for patients with maxillofacial fractures according to claim 3, characterized in that: The guide seat (1001) has four limiting guide rails (1008) fixed inside. The sliding grooves of the limiting guide rails (1008) are all slidably connected to guide rods (1009). The top of each guide rod (1009) is fixedly connected to the base plate (1).

6. The mouth-opening training device for patients with maxillofacial fractures according to claim 3, characterized in that: A frame-shaped elastic cloth (1010) is fixed at the opening at the top of the guide seat (1001), and the base plate (1) is fixed at the central opening of the frame-shaped elastic cloth (1010).

7. The mouth-opening training device for patients with maxillofacial fractures according to claim 1, characterized in that: A sealing frame (11) is fixed to the front of the support plate (2), and a sealing cap (12) is tightly inserted into the surface of the sealing frame (11).

8. The mouth-opening training device for patients with maxillofacial fractures according to claim 7, characterized in that: A cathode magnetic ring (13) is fixed on the front of the support plate (2) on the outside of the sealing frame (11), and an anode magnetic ring (14) with the same shape as the cathode magnetic ring (13) is fixed on the sealing cover (12). The cathode magnetic ring (13) and the anode magnetic ring (14) are attracted to each other.

9. A mouth-opening training device for patients with maxillofacial fractures according to claim 1, characterized in that: Both sliding blocks (3) have silicone sleeves (15) fixed on their surfaces, and both sliding blocks (3) have two elastic bands (16) fixed on their surfaces. The other end of each elastic band (16) is fixedly connected to the support plate (2).

10. A mouth-opening training device for patients with maxillofacial fractures according to claim 1, characterized in that: Mounting rings (17) are fixed at the heat dissipation holes on both sides of the housing (9), and dustproof nets (18) are fixed inside the mounting rings (17).

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