Temporomandibular joint surgical dilator

Abstract

The utility model discloses a kind of temporomandibular joint surgical dilators, it is related to medical instrument technical field, including dilator handle, the inside sliding installation of dilator handle has pusher, and the below sliding connection of pusher has ware pole, and one end of ware pole and dilator body are connected, the inside of ware pole is provided with air cylinder, and the rear end of air cylinder is obliquely connected with push rod, and the inside of the middle two sides of ware pole is equipped with rack plate. The utility model, when dilator is used, the rotation shaft in the middle of dilator body is operated by the pushing of ware pole, the opening of dilator body side is adjusted in different size, the dilator body after opening can support the temporomandibular joint opening of patient, facilitate medical staff to watch internal condition, create operating space for medical staff, simultaneously, dilator body can be fixed by air cylinder opening and closing size, can continuously and stably prop open tissue, reduce the demand of medical staff manual operation, so that medical staff can stably, continuously operate.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a temporomandibular joint surgical expander. Background Technology

[0002] The temporomandibular joint is an important movable joint connecting the mandible and the skull. Its main functions include: supporting chewing function by moving the teeth to chew food through opening, closing, forward and backward movements and lateral movements; assisting in speech function by participating in mandibular movements during pronunciation and coordinating articulation; assisting in facial expressions such as smiling and opening the mouth; and maintaining facial shape by supporting the position of the mandible and maintaining the normal shape and symmetry of the middle and lower part of the face. It is of key significance for oral function and facial aesthetics.

[0003] The existing Chinese utility model patent with publication number CN219846838U discloses a temporomandibular joint surgical expander. This temporomandibular joint surgical expander includes an elastic rubber body and a limiting module. The limiting module includes a clamping strip, a sliding track, a sliding block, a connecting component, a connecting rod, and a mounting base. The sliding track is fixedly connected to the clamping strip and fitted inside the clamping strip. The sliding block is slidably disposed within the sliding track. The connecting component is connected to the sliding block and the connecting rod respectively. The mounting base is fixedly connected to the connecting rod. The elastic rubber body is connected to the mounting base. Through the above structure, it is easy for medical staff to use and reduces the chance of cross-infection.

[0004] Currently used temporomandibular joint surgical expanders still have the following problems:

[0005] When medical staff perform temporomandibular joint surgery on a patient, they need to open the patient's temporomandibular joint to expose the surgical area. Because the temporomandibular joint has the function of automatic closure, it is necessary to keep the patient's temporomandibular joint open during the operation. Long-term manual expansion by medical staff not only makes it difficult to control the size of the opening and closing of the temporomandibular joint, but also affects the normal operation of medical staff during the operation. Utility Model Content

[0006] The purpose of this invention is to provide a temporomandibular joint surgical expander to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a temporomandibular joint surgical expander, including an expander handle, a pushing device slidably installed inside the expander handle, and a rod slidably connected below the pushing device, with one end of the rod connected to the expander body, an air cylinder provided inside the rod, and a pushing rod obliquely connected to the rear end of the air cylinder, and toothed plates provided inside the middle two sides of the rod.

[0009] The expander body includes a rotating shaft that is movably connected between the body parts, and a connecting rod is obliquely connected to one side of the rotating shaft. One end of the connecting rod is connected to a rotating ring, and a shaft is inserted inside the rotating ring. One end of the shaft is movably connected to a clamping plate.

[0010] Preferably, the expander handle has a rod hole at one end, and several gears are provided on both sides of the expander handle, and a light is installed on the outside of one end of the expander handle.

[0011] Preferably, the pushing device has side grooves on both sides, and a chuck is installed on one side of the inside of the side groove, and a sleeve ring is fixedly installed at the bottom of the pushing device.

[0012] Preferably, a groove is provided at the rear of the rod, and the push rod is located inside the groove. A connecting ring is connected to the front of the rod. One end of the rod is inserted into the connecting ring and the card plate. The push rod is located on one side of the pushing device, and the rod is inserted into the sleeve ring.

[0013] Preferably, one end of the expander handle has a pre-drilled hanging hole, and the rod is located below the gear, with the rod and the expander handle having the same length.

[0014] Preferably, the gear is located in the side grooves on both sides of the pushing device, and the chuck and the gear are meshed together, and the sleeve ring is located inside the lower part of the expander handle.

[0015] Preferably, the clamping plate is connected to one side of the expander body, and the inside of the clamping plate is provided with a slot, and the top of the expander body is also provided with a slot. The rotating ring is rotatably connected to the clamping plate through the shaft, and the rack plate is in contact with both sides of the rotating ring. One side of the clamping plate is fixedly connected to one end of the connecting ring, and the expander body extends horizontally at one end of the expander handle.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] 1. When medical staff are performing surgery, the expander body is pushed out from inside the expander handle by the pushing device, which extends the expander body to different degrees, making it easier for the expander body to penetrate into the patient's temporomandibular joint. At the same time, the pushing device can fix the position of the expander body by setting the retainer, so that the expander body is fixed after being extended. In addition, the overall structure of the expander handle is small, making it easy for medical staff to push it.

[0018] 2. When using the expander, the rotating shaft in the middle of the expander body is driven by the rod to adjust the size of the opening on one side of the expander body. After opening, the expander body can support the opening of the patient's temporomandibular joint, making it easier for medical staff to see the internal situation and creating operating space for medical staff. At the same time, the expander body is fixed in size by the opening and closing of the air cylinder, which can continuously and stably expand the tissue, reducing the need for manual operation by medical staff and enabling medical staff to operate stably and continuously. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the expander handle of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall pushing device of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the rod of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the expander body of this utility model;

[0026] In the picture:

[0027] 1. Expander handle; 11. Rod hole; 12. Gear; 13. Lighting lamp; 2. Hanging hole; 3. Pushing device; 31. Side groove; 32. Gear clamp; 33. Sleeve ring; 4. Mechanism rod; 41. Air cylinder; 42. Push rod; 43. Connecting ring; 44. Rack plate; 5. Expander body; 51. Rotating shaft; 52. Connecting rod; 53. Rotating ring; 54. Clamping plate. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] Please see Figures 1-5 A temporomandibular joint surgical expander includes an expander handle 1, with a rod hole 11 at one end of the expander handle 1, and several gears 12 arranged on both sides of the inside of the expander handle 1, and a lighting lamp 13 installed on the outside of one end of the expander handle 1.

[0030] For details, please refer to the following: Figure 3 The pusher 3 is slidably installed inside the expander handle 1. Side grooves 31 are opened on both sides of the pusher 3, and a chuck 32 is installed on one side of the side groove 31. A sleeve ring 33 is fixedly installed at the bottom of the pusher 3.

[0031] In this embodiment, the gear 12 is located in the side grooves 31 on both sides of the push device 3, and the chuck 32 and the gear 12 are meshed together, and the sleeve ring 33 is located inside the lower part of the expander handle 1.

[0032] The temporomandibular joint surgical expander of this utility model has a pushing device 3 that moves horizontally inside the expander handle 1 through a side groove 31, thereby pushing the rod 4. During pushing, the retaining wheel 32 can arbitrarily fix the pushing device 3 between two sets of gears 12, which facilitates the position fixation of the rod 4 of a certain length. The gears 12 are located in the middle of the expander handle 1, and the rear end of the expander handle 1 can be used to position the entire pushing rod 42 to prevent pressure on the pushing rod 42.

[0033] For details, please refer to the following: Figure 4 A rod 4 is slidably connected to the lower part of the pushing device 3. An air cylinder 41 is installed inside the rod 4, and a pushing rod 42 is obliquely connected to the rear end of the air cylinder 41. A rack plate 44 is provided inside the middle two sides of the rod 4.

[0034] In this embodiment, a groove is provided at the rear of the rod 4, and the push rod 42 is located inside the groove. A connecting ring 43 is connected to the front of the rod 4. One end of the rod 4 is inserted into the connecting ring 43 and the card plate 54. The push rod 42 is located on one side of the push device 3, and the rod 4 is inserted into the sleeve ring 33. One end of the expander handle 1 is provided with a hanging hole 2, and the rod 4 is located below the gear 12. The lengths of the rod 4 and the expander handle 1 are the same.

[0035] The temporomandibular joint surgical dilator of this utility model has a rod 4 that extends forward through the air cylinder 41 and the push rod 42, so that the rack plate 44 and the rotating ring 53 rotate into contact. The push rod 42 is located behind the push device 3, which makes it convenient for medical personnel to manually press the dilator.

[0036] For details, please refer to the following: Figure 5 One end of the device rod 4 is connected to the expander body 5. The expander body 5 includes a rotating shaft 51 that is movably connected between the device bodies. A connecting rod 52 is obliquely connected to one side of the rotating shaft 51. One end of the connecting rod 52 is connected to the rotating ring 53. A shaft is inserted inside the rotating ring 53. One end of the shaft is movably connected to the clamping plate 54.

[0037] In this embodiment, the clamping plate 54 is connected to one side of the expander body 5, and the inside of the clamping plate 54 is provided with a slot, and the top of the expander body 5 is also provided with a slot. The rotating ring 53 is rotatably connected to the clamping plate 54 through the shaft, and the rack plate 44 and the two sides of the rotating ring 53 are in contact. One side of the clamping plate 54 is fixedly connected to one end of the connecting ring 43, and the expander body 5 extends horizontally at one end of the expander handle 1.

[0038] In actual use, the push rod 42 pushes the rack plate 44 to one side. At this time, the rotating ring 53 is located on one side of the rack plate 44. When the rack plate 44 and the rotating ring 53 gradually touch, the rotating ring 53 is pushed by the rack plate 44. Then, through the movement of the connecting rod 52 and the rotating shaft 51, the expander body 5 is driven to adjust the opening and closing size. When the rack plate 44 is fixed by the air cylinder 41 and the push rod 42, the opening and closing size of the expander body 5 can be fixed, providing stable support for the patient's temporomandibular joint.

[0039] The temporomandibular joint surgical expander of this utility model can expand to different degrees by means of push rod 42. The grooves opened on the upper and lower parts of the expander body 5 can support the temporomandibular joint, so that the device can flexibly expand the temporomandibular joint. Furthermore, the expander body 5 can be stored on one side of the expander handle 1 by means of the expander rod 4 and push device 3, which reduces the area occupied by the device.

[0040] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A temporomandibular joint surgical expander, comprising an expander handle (1), characterized in that: The expander handle (1) is slidably fitted with a pusher device (3), and a rod (4) is slidably connected below the pusher device (3). One end of the rod (4) is connected to the expander body (5). An air cylinder (41) is provided inside the rod (4), and a pusher rod (42) is obliquely connected to the rear end of the air cylinder (41). A rack plate (44) is provided inside the middle two sides of the rod (4). The expander body (5) includes a rotating shaft (51) that is movably connected between the bodies, and a connecting rod (52) is obliquely connected to one side of the rotating shaft (51), and one end of the connecting rod (52) is connected to a rotating ring (53). A shaft is inserted inside the rotating ring (53), and one end of the shaft is movably connected to a clamping plate (54).

2. The temporomandibular joint surgical expander according to claim 1, characterized in that: The expander handle (1) has a rod hole (11) at one end inside, and several gears (12) are provided on both sides inside the expander handle (1), and a lighting lamp (13) is installed on the outside of one end of the expander handle (1).

3. A temporomandibular joint surgical expander according to claim 2, characterized in that: The pushing device (3) has side grooves (31) on both sides, and a chuck (32) is installed on one side of the inside of the side groove (31), and a sleeve ring (33) is fixedly installed at the bottom of the pushing device (3).

4. A temporomandibular joint surgical expander according to claim 1, characterized in that: The device rod (4) has a groove at the rear, and the push rod (42) is located inside the groove. The device rod (4) is connected to a connecting ring (43) at the front. One end of the device rod (4) is inserted into the connecting ring (43) and the card plate (54). The push rod (42) is located on one side of the push device (3), and the device rod (4) is inserted into the sleeve ring (33).

5. A temporomandibular joint surgical expander according to claim 1, characterized in that: One end of the expander handle (1) has a pre-drilled hanging hole (2), and the rod (4) is located below the gear (12), and the rod (4) and the expander handle (1) have the same length.

6. A temporomandibular joint surgical expander according to claim 3, characterized in that: The gear (12) is located in the side grooves (31) on both sides of the pusher (3), and the chuck (32) and the gear (12) are meshed together, and the sleeve ring (33) is located inside the lower part of the expander handle (1).

7. A temporomandibular joint surgical expander according to claim 1, characterized in that: The card plate (54) is connected to one side of the expander body (5), and the inside of the card plate (54) is provided with a slot, and the top of the expander body (5) is also provided with a slot. The rotating ring (53) is connected to the card plate (54) through the shaft, and the rack plate (44) and the two sides of the rotating ring (53) are in contact. One side of the card plate (54) is fixedly connected to one end of the connecting ring (43). The expander body (5) extends horizontally at one end of the expander handle (1).

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