CN213216838U

CN213216838U - Magnetic resonance temporomandibular joint examination opening device

Info

Publication number: CN213216838U
Application number: CN202021436073.2U
Authority: CN
Inventors: 陈旭高; 胡缙鸽; 叶国伟
Original assignee: Lishui City Peoples Hospital
Current assignee: Lishui City Peoples Hospital
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-05-18
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a magnetic resonance temporomandibular joint inspection opening device, which relates to the field of medical devices. Aiming at the problems of complex structure, high cost, and inconvenient use and disinfection of the existing opening device, the following scheme is proposed, which includes: The main frame and the travel frame, the travel frame is sleeved on the main frame, and the travel frame can slide on the main frame, and the travel frame is connected with fixing bolts. When the travel frame slides on the main frame, the travel frame is fixed by The main frame and the travel frame are both provided with scales, and one end of the main frame is fixed with a hydraulic handle. The utility model has a novel structure, and when the patient's opening is detected, the opening device, by pressing the hydraulic handle, opens the lower opening piece and the upper opening piece to the comfortable position of the patient, and the opening position can be fixed by tightening the fixing bolt, which is convenient and quick, and the lower opening piece and the upper opening piece are opened to the comfortable position of the patient. The occlusal surface is a sterile disposable rubber sleeve, which does not need to be sterilized, and is directly discarded after the inspection. This design is convenient, fast, safe and hygienic.

Description

Magnetic resonance temporomandibular joint examination opening device

Technical Field

The utility model relates to a medical device field especially relates to a magnetic resonance temporomandibular joint inspection opening device.

Background

In temporomandibular joint diseases, the prevalence of temporomandibular joint disc displacement is highest, which is better in young and middle-aged people, and can involve 10% -15% of adults, with the peak of incidence being 20-40 years old, and the incidence in women being 2 times that in men, but only 5% of patients undergo diagnosis and treatment. Temporomandibular joint disc displacement is associated with a variety of factors, such as psychology (mood disorders, anxiety, etc.), trauma (previous impact from external forces, hard bite, excessive opening, etc.), disturbance of the bite relationship. The role of the condyles, which are the main components of the temporomandibular joint, in the pathogenesis of displacement of the temporomandibular joint disc is worthy of intensive investigation. At present, the diagnosis of the displacement of the temporomandibular joint disc mainly depends on the medical history acquisition and the clinical relevant examination, and the MRI examination is considered as the golden standard for examining the disorder of the condylar relation of the temporomandibular joint disc ⁃ and the morphology of the soft tissue due to its high soft tissue resolution and the capability of imaging in multiple directions, multiple planes and at any angle. The MRI can clearly display the shape and the displacement degree of the articular disc, and doctors can dynamically and qualitatively analyze the articular disc displacement into recoverability or irrecoverability according to the opening position and the closed position images, thereby having important significance for clinically selecting a proper treatment mode. MRI conventional scanning is divided into a closed position and an open position. And (4) opening position inspection, wherein the mouth gag is required to be fixed in an auxiliary way. The "open position" is crucial for the successful implementation of TMJ MR examination, and the "mouth gag" is an important part of the patient open position examination process, and functions as: the opening degree of a patient is measured accurately, the reference is made for clinical and image diagnosis, and the accurate judgment of TMD typing is very important. The examination part of the oral cavity opening position is fixed, the oral cavity position is fixedly supported, and the motion artifact is reduced. Because MR scans are long (conventional scout scans for 10-20 minutes) and imaging requires the patient to be relatively still at all times, the mouth gag is an essential equipment for routine examination of the temporomandibular joint.

At present, the mouth gag mainly comprises: the top end of the main body is provided with a measuring device extending into the oral cavity, the two strip-shaped probes are fixed at the top end of the mouth gag, the lower probe is movably connected with the measuring caliper, and the length of the upper probe and the lower probe is about 3 cm. By pressing a button in the middle of the caliper, an upward button is arranged on the near-end side, and the opening degree of the lower probe is reduced by 1mm when the caliper is pressed; on the contrary, the far end is a downward button, and the opening degree of the lower probe is increased by 1mm when the far end is pressed. Because temporomandibular joint is a special position, so, the requirement to the mouth gag is high, the mouth gag structure is comparatively complicated, the button is adjusted inconveniently, and press the switch once, only remove 1mm, waste time and energy, the partial degree of depth of mouth gag top probe is 3cm, the patient very easily has uncomfortable sensation, and with the tooth occlusal surface area of contact not enough, arouse the motion artifact easily, moreover, mouth gag itself is comparatively heavy, need used repeatedly, and the price is expensive, it is not convenient enough to disinfect, therefore we design a magnetic resonance temporomandibular joint inspection opening device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of magnetic resonance temporomandibular joint inspection opening device has solved mouth gag structure complicacy, and the cost is higher to use and the inconvenient problem of disinfection operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a magnetic resonance temporomandibular joint examination opening device comprises a main frame and a traveling block, wherein the traveling block is sleeved on the main frame, the traveling block can slide on the main frame, the traveling block is connected with a fixing bolt, the traveling block is fixed by the fixing bolt when sliding on the main frame, the main frame and the traveling block are both provided with scales, one end of the main frame is fixed with a hydraulic handle, one end of the main frame, which is far away from the hydraulic handle, is fixed with an upper opening part, the traveling block is fixed with a lower opening part, the upper opening part and the lower opening part have the same structure, the upper opening part and the lower opening part both comprise a fixed rod and a sheath, the sheath is sleeved on the fixed rod, a hollow cavity is arranged inside one end of the main frame, which is close to the traveling block, a micro hydraulic part is arranged inside the hollow cavity, a push groove is arranged on the main frame, the push groove is arranged above the hollow cavity, and a push rod is arranged inside the push groove, one end of the push rod is fixed on the miniature hydraulic part, the other end of the push rod is fixed with a push block, and the push block is fixed on the traveling frame.

Preferably, the fixed slot has been seted up on the dead lever, and the fixed slot is O type groove structure, the inside of sheath is provided with the rand, the rand is O type circle, when the rand cover was established on the dead lever, when the sheath cover was established on the dead lever, the rand setting was in the fixed slot.

Preferably, the sheath is made of a disposable latex material or a disposable rubber material.

Preferably, the push groove is arranged above one end, close to the traveling rack, of the hollow cavity in the main rack.

Preferably, the ejector pad is the rectangular block, and the push rod is L type structure, the longer one end setting of L type structure of push rod is in pushing away the groove, and the other end is connected on the ejector pad.

The utility model has the advantages that: the utility model discloses, examine time measuring at the patient opening, the mouth gag opens the comfortable position of patient with lower opening spare and last opening spare through pressing hydraulic handle, screws up fixing bolt and can fix the opening position, convenient and fast to the occlusal surface is aseptic disposable rubber sleeve down, need not to disinfect again, has done the inspection and has directly abandoned, this design convenience, swift, safety, health.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the fixing member and the sheath in fig. 1.

Fig. 3 is a partial schematic view of the main frame of fig. 1.

Reference numbers in the figures: 1. a main frame; 2. a traveling frame; 3. a hydraulic handle; 4. fixing the bolt; 5. an upper opening member; 6. a lower opening member; 7. fixing the rod; 8. a sheath; 9. fixing grooves; 10. a collar; 11. a hollow cavity; 12. a micro hydraulic part; 13. a push rod; 14. a push block; 15. and (6) pushing the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a magnetic resonance temporomandibular joint examination opening device comprises a main frame 1 and a traveling block 2, wherein the traveling block 2 is sleeved on the main frame 1, the traveling block 2 can slide on the main frame 1, the traveling block 2 is connected with a fixing bolt 4, the traveling block 2 is fixed by the fixing bolt 4 when sliding on the main frame 1, the main frame 1 and the traveling block 2 are both provided with scales, one end of the main frame 1 is fixed with a hydraulic handle 3, one end of the main frame 1, which is far away from the hydraulic handle 3, is fixed with an upper opening part 5, the traveling block 2 is fixed with a lower opening part 6, the upper opening part 5 and the lower opening part 6 are identical in structure, the upper opening part 5 and the lower opening part 6 both comprise a fixing rod 7 and a sheath 8, the fixing rod 7 of the sheath 8 is sleeved on the fixing rod, a hollow cavity 11 is arranged inside one end of the main frame 1, which is near the traveling block 2, a miniature hydraulic part 12 is arranged inside the hollow cavity 11, the push groove 15 is arranged above the hollow cavity 11, the push rod 13 is arranged inside the push groove 15, one end of the push rod 13 is fixed on the micro hydraulic part 12, the other end of the push rod 13 is fixed with the push block 14, and the push block 14 is fixed on the traveling rack 2.

Referring to fig. 2, fixing groove 9 has been seted up on dead lever 7, and fixing groove 9 is O type groove structure, and the inside of sheath 8 is provided with rand 10, and rand 10 is O type circle, and rand 10 cover is established when the dead lever 7 is gone up, and 8 covers of sheath are established when the dead lever 7 is gone up, and rand 10 sets up in fixing groove 9, and the rand 10 card through in the sheath 8 is established in fixing groove 9, and the connection between sheath 8 and the dead lever 7 is easy and simple to handle to make things convenient for the change of sheath.

Referring to fig. 2, the sheath 8 is made of disposable latex material or disposable rubber material, and the sheath 8 is directly discarded after examination without disinfection, so that the disposable latex material or rubber material is convenient, rapid, safe and sanitary.

Referring to fig. 3, a push slot 15 is provided above one end of the hollow chamber 11 in the main frame 1 near the traveling frame 2.

Referring to fig. 3, the push block 14 is a rectangular block, the push rod 13 is an L-shaped structure, one longer end of the L-shaped structure of the push rod 13 is disposed in the push slot 15, and the other end is connected to the push block 14.

The working principle is as follows: the utility model discloses when using, place in the patient's mouth through last opening part 5 on with body frame 1 and the lower opening part 6 on the frame 5 that swims, through pressing hydraulic handle 3, make the lower opening part 6 on the frame 2 that swims remove the comfortable position of patient's opening, screw up fixing bolt 4 can fixed open position, convenient and fast, and detect at the patient and accomplish the back, tear open the change through the sheath 8 with last opening part 5 on the lower opening part 6, and sheath 8 adopts aseptic disposable rubber sleeve or latex sleeve, need not to disinfect again, it directly abandons to have done the inspection, this convenient to design, swiftly, safety, health.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A magnetic resonance temporomandibular joint examination opening device, comprising a main frame (1) and a travel frame (2), wherein the travel frame (2) is sleeved on the main frame (1), and the travel frame (2) can be Sliding on the main frame (1), the floating frame (2) is connected with fixing bolts (4), when the floating frame (2) slides on the main frame (1), it is fixed by the fixing bolts (4), Both the main frame (1) and the travel frame (2) are provided with scales, characterized in that a hydraulic handle (3) is fixed at one end of the main frame (1), and the main frame (1) is far away from the hydraulic handle One end of (3) is fixed with an upper opening piece (5), a lower opening piece (6) is fixed on the travel frame (2), and the upper opening piece (5) has the same structure as the lower opening piece (6). Both the upper opening piece (5) and the lower opening piece (6) include a fixing rod (7) and a sheath (8), the sheath (8) is sleeved on the fixing rod (7), and the main frame ( 1) A hollow cavity (11) is arranged inside one end close to the travel frame (2), a micro hydraulic component (12) is arranged inside the hollow cavity (11), and a push groove (12) is formed on the main frame (1). 15), the push groove (15) is arranged above the hollow cavity (11), a push rod (13) is arranged inside the push groove (15), and one end of the push rod (13) is fixed on the micro hydraulic On the component (12), a push block (14) is fixed at the other end, and the push block (14) is fixed on the travel frame (2).

2. A magnetic resonance temporomandibular joint examination opening device according to claim 1, characterized in that, a fixing groove (9) is formed on the fixing rod (7), and the fixing groove (9) is an O-shaped groove structure , a collar (10) is arranged inside the sheath (8), the collar (10) is an O-ring, and when the collar (10) is sleeved on the fixing rod (7), the collar (10) When the sheath (8) is sleeved on the fixing rod (7), the collar (10) is arranged in the fixing groove (9).

3. The magnetic resonance temporomandibular joint examination opening device according to claim 2, wherein the sheath (8) is made of a disposable latex material or a disposable rubber material.

4. A magnetic resonance temporomandibular joint examination opening device according to claim 1, characterized in that the push groove (15) is provided in the hollow cavity (11) in the main frame (1) close to the travel frame (2) ) above one end.

5. The magnetic resonance temporomandibular joint examination opening device according to claim 1, wherein the push block (14) is a rectangular block, and the push rod (13) is in an L-shaped structure, and the push rod The longer end of the L-shaped structure of (13) is arranged in the push groove (15), and the other end is connected to the push block (14).