TWM564428U - Oral expander - Google Patents

Abstract

An oral dilator includes a first body, a second body, a gear module, a rotating member, and a limiting member. The first body includes a housing and a first duckbill tab. The second body includes a joint portion and a second duckbill tab. The gear module comprises a gear ring, a sun gear, and a planetary gear. The gear ring is disposed on the surface of the top cover, and is located at the periphery of the top cover, the center gear is located at the center of the top cover, the equiangular gear is disposed at the periphery of the central gear, and the planet The gears mesh with the gear ring and the sun gear, respectively. The rotating member includes a central shaft and a gear piece. The central shaft is disposed through the first body and the second body, and is connected to the gear piece. The rotating member drives the second body to rotate. The limiting member is disposed on the first body, and restricts the rotation of the gear piece when the limiting member contacts the gear piece.

Description

Oral dilator

The novel creation relates to a medical rehabilitation tool, in particular an oral dilator.

After the patient in the head, neck, or mouth area undergoes surgery or radiation therapy, it is easy to cause fibrosis of the tissues of the masticatory muscles and ankle joints around the mouth, which causes problems in tightness of the jaws and difficulty in opening the mouth. This can lead to a decline in the quality of life of patients, such as difficulty eating and lack of nutrition, as well as difficulty in cleaning the oral cavity, causing problems such as oral mucositis, periodontal disease, and bacterial infection.

It has been confirmed by actual clinical trials that through the behavior of Zhangkou rehabilitation, it can avoid the problem of tissue fibrosis and difficulty in opening the mouth, and can reduce the incidence of oral mucositis by about 40%, and it can also be beneficial for eating, cleaning, and wiping. To avoid infection.

The existing oral rehabilitation tools usually stack the tongue depressor, force the muscle tension to increase the effect of opening the mouth, or combine the tongue depressor into a state of the clip for oral expansion, because such a rehabilitation tool is not easily caused by the patient. Self-operated, it needs to be assisted by others, and it is difficult to control on the strength, which is easy to cause pain to the patient, and the patient is unwilling to continue rehabilitation. In addition, after the patient undergoes surgery, it is usually weak, and the force required for the operation must be considered.

In order to solve the problems of the prior art, an ergonomic, self-operating, and labor-saving oral dilator is provided. The oral dilator includes a first body, a second body, a gear module, a rotating member and a limiting member. The first body includes a housing and a first duckbill tab, the first duckbill tab extending from one side of the housing, the housing including a top cover. The second body comprises a joint portion and a second duckbill tab, the joint portion is assembled with the shell, and the second duckbill tab is extended by the joint portion and cooperates with the first duckbill tab for opening and closing. The gear module includes a gear ring, a sun gear, and a plurality of planet gears. The gear ring is disposed on the top cover, and is located on the periphery of the top cover, the central gear is located on the top cover, the planetary gear is located on the top cover, and is equiangularly disposed on the periphery of the sun gear, and the planetary gears are respectively engaged with the gear ring and the center gear Hehe. The rotating member includes a central shaft and a gear piece. The central shaft extends through the first body, the gear piece and the second body, and the central gear and the gear piece are sleeved on the central axis, wherein the gear piece comprises a one-way tooth row, and the first duckbill support piece and the second duckbill support are driven by the rotating piece The film is opened and closed. The limiting member is disposed on the first body, the limiting member comprises a toggle hub and a ratchet tooth row, wherein the toggle hub controls the engagement of the ratchet tooth row and the one-way tooth row, and the ratchet tooth row and the one-way tooth When the rows are engaged, the rotating member can only rotate in one direction.

In some embodiments, the housing includes a peripheral wall, and the peripheral wall is connected to the top cover and surrounds the accommodating space. The peripheral wall is provided with a slot, the insertion slot communicates with the accommodating space, and the second body is coupled. Inserted in the docking slot. The top cover defines a first opening, the joint portion is provided with a second opening, the peripheral wall abuts the gear ring, the central gear has a third opening, and the third opening corresponds to the first opening and the second opening, The gear piece defines a fourth opening, the fourth opening corresponds to the first opening, the second opening and the third opening, the central axis passes through the first opening, the second opening The third opening and the fourth opening, the first body, the second body, the sun gear, the gear piece, and the rotating member are coaxially assembled.

In some embodiments, the limit member further includes a spring and a lever. The spring abuts the spine tooth row and the inner surface of the peripheral wall, and the lever extends from the surface of the toggle hub. When the lever is stressed, the shifting hub and the ratchet tooth row are displaced, and the spring is squeezed. The one-way tooth row does not contact the ratchet tooth row. When the lever is removed by force, the spring force of the spring drives the toggle hub and the ratchet tooth row to reset, so that the ratchet tooth row meshes with the one-way tooth row.

Further, the first body further comprises a back cover, and the back cover is fixedly connected with the connecting member extending on the lower surface of the top cover to close the accommodating space. The rear cover is provided with a sliding slot, and the lever passes through the sliding slot to protrude from the rear cover.

In some embodiments, the central shaft includes a limiting surface, the third opening of the sun gear includes a third limiting side, and the fourth opening of the gear piece includes a fourth limiting side, when the central axis is threaded through the When the first opening, the second opening, the third opening and the fourth opening are formed, the limiting surface abuts the third limiting side and the fourth limiting side.

In some embodiments, the rotating member further includes a rotating button, and the rotating button is located on the upper surface of the top cover, and the two ends of the central shaft are respectively coupled with the rotating button and the gear piece.

In some embodiments, wherein the toggle hub includes a first perforation, the ratchet tooth row includes a second perforation, and the toggle hub and the ratchet tooth row are pivotally connected by the latch through the first perforation and the second perforation.

In some embodiments, the oral dilator further includes a buckle that contacts the surface of the gear piece and is sleeved at one end of the central shaft.

In some embodiments, the planet gears are secured to the surface of the top cover by a locking member.

In some embodiments, the number of teeth of the gear ring is a multiple of each planet gear. Further, the number of teeth of the planetary gear is equal to the central gear.

The oral dilator proposed in each embodiment of the present application is ergonomically designed to enable the patient to self-operate and achieve a labor-saving effect through the gear module, and the patient can easily operate. In addition, the position limiter of the oral dilator restricts the rotation, which can make the expansion angle fixed, thereby facilitating the stepwise re-establishment of the mouth, avoiding the pain caused by excessive expansion, and being able to observe and record the rehabilitation situation, thereby encouraging the disease. Suffering from use, and thus avoiding chewing tissue fibrosis, can improve the patient's eating and quality of life.

Referring to Figures 1, 2A and 2B, respectively, a perspective view of a first embodiment of an oral dilator, an exploded view of the first embodiment of the oral dilator, and a bottom exploded view of the first embodiment of the oral dilator. As shown in FIG. 1 , FIG. 2A and FIG. 2B , the oral dilator 1 of the first embodiment includes a first body 10 , a second body 20 , a rotating member 30 , a limiting member 40 , and a gear module 50 . The first body 10 includes a housing 11 and a first duckbill tab 13 . The housing 11 includes a peripheral wall 111 and a top cover 113. The peripheral wall 111 is connected to the top cover 113 and surrounds the accommodating space 115. In this embodiment, the housing 11 is surrounded by a peripheral wall 111 into a barrel-like structure. However, it is only an example and is not limited to this. The peripheral wall 111 is provided with a insertion groove 117. The insertion groove 117 communicates with the accommodation space 115 inside the casing 11. The insertion groove 117 is generally opened from the center of the peripheral wall 111. The top cover 113 is provided with a first opening 119. Here, on the other side of the accommodating space 115, the peripheral wall 111 may protrude from the top cover 113 such that a groove shape is formed. The first duckbill tab 13 extends outwardly from the peripheral wall 111.

The second body 20 includes a joint portion 21 and a second duckbill tab 23 . The joint portion 21 is in the form of a disk, but is not limited thereto, the joint portion 21 is inserted into the insertion groove 117, and the joint portion 21 defines a second opening 211, and the second duckbill tab 23 is joined by the joint portion 21. The extension extends and corresponds to the first duckbill tab 13. Here, the first duckbill support piece 13 and the second duckbill support piece 23 are in a mutually mirrored form, the first duckbill support piece 13 includes a first contact surface 131, and the second duckbill support piece 23 includes a second contact surface 231. When the first duckbill support piece 13 and the second duckbill support piece 23 are in contact, the first contact surface 131 and the second contact surface 231 are in contact with each other.

The gear module 50 includes a gear ring 51, a sun gear 53, and a plurality of planet gears 55. The gear ring 51 is provided on the surface of the top cover 113 and abuts against the peripheral wall 111. The gear ring 51 includes a plurality of first tooth blocks 511 arranged equiangularly toward the center of the top cover 113. The sun gear 53 is located at the center of the gear ring 51 and includes a plurality of second tooth blocks 531 which are arranged equiangularly toward the circumference of the top cover 113. The planetary gear 55 is located on the surface of the top cover 113 and is equiangularly disposed on the circumference of the sun gear 53. The planetary gear 55 includes a plurality of third tooth blocks 551, and the third tooth block 551 is meshed with the first tooth block 511 and the second tooth block 531, respectively.

In some embodiments, the planetary gears 55 are fixed to the surface of the top cover 113 through at least one locking member 553. Here, the locking member 553 can be a screw or a nut group, which is merely an example, and is not limited thereto, and may be a rivet or other fixing manner.

In some embodiments, the number of teeth of the first tooth block 511 of the gear ring 51 is a multiple of the third tooth block 551 of each of the planetary gears 55. Further, the second tooth block 531 is equal in number to the third tooth block 551. In one embodiment, the number of first tooth blocks 511 is 60 teeth, and the second tooth block 531 and the third tooth block 551 are 15 teeth. Since the formula of the speed ratio is as shown in Equation 1, (Equation 1), where R is the rotational speed ratio, Za is the number of teeth of the gear ring 51, and Zc is the number of teeth of the sun gear 53. The speed ratio is proportional to the torque ratio of the bracket. Therefore, the applied force can achieve five times the torque through the gear module 50, thereby achieving a labor-saving function.

The rotary member 30 includes a center shaft 31, a rotary knob 33, and a gear piece 35. In this embodiment, the first end 311 of the central shaft 31 is combined with the rotary knob 33. For example, the first end 311 may be a protrusion of the protrusion and the lower side of the rotary knob 33, or the first end 311 may be a screw, a rivet or a plug. The latch, and the like are combined with the rotary knob 33, which is merely an example, but is not limited thereto. Therefore, after the central shaft 31 is assembled with the rotary knob 33, the sun gear 53 is provided with a third opening 533, and the gear piece 35 is provided with a fourth opening 351. The central shaft 31 is disposed through the first opening 119, the second opening 211, the third opening 511, and the fourth opening 351. The lower surface of the rotary knob 33 contacts the upper surface of the top cover 113. In more detail, the lower surface of the rotary knob 33 can be in contact with the gear ring 51, the sun gear 53, and the plurality of planet gears 55.

In some embodiments, the gear piece 35 is a one-way gear piece located on the other side of the central shaft 31 relative to the rotary knob 33. The gear piece 35 has a one-way tooth row 353, and the center shaft 31 passes through the fourth opening 351 and is connected to the gear piece 35. Further, the second end 313 of the central shaft 31 can be fixed by a buckle 37. The buckle 37 is sleeved on the outside of the central shaft 31 and is in contact with the gear piece 35 to restrict the central shaft 31 from rotating and cannot move. . Further, in the first embodiment, the first body 10, the second body 20, the rotary knob 33, the sun gear 53, and the gear piece 35 are coaxially assembled with the center shaft 31.

In some embodiments, the position limiting member 40 includes a toggle joint 41 and a ratchet tooth row 43. The toggle hinge 41 is disposed in the accommodating space 115 of the first body 10 and can pass through the fixing member 1133 and the top cover 113. The lower surface or the connecting member 1131 extending from the lower surface of the top cover 113 is fixed. Here, the fixing member 1133 may be a screw, a rivet, or a fixing pin or the like, and the connecting member 1131 may be a shaft tube, a card holder or the like, which is merely an example, but is not limited thereto. The ratchet tooth row 43 is connected to the toggle joint 41. For example, the ratchet tooth row 43 is pivotally connected to the toggle hinge 41 via a latch 45, for example, the latch 45 is passed through the second through hole 431 of the ratchet tooth row 43. The first through hole 411 is fixed to the toggle joint 41. This is merely an example, but is not limited thereto. The ratchet tooth row 43 can be in mesh with the one-way tooth row 353. When the ratchet tooth row 43 is engaged with the one-way tooth row 353, the rotation of the gear piece 35 is restricted. That is, the gear piece 35 can only be rotated in one direction along the one-way tooth row 353, and cannot be reversed. At this time, the second duckbill tab 23 will be away from the first duckbill tab 13 and expand the angle between the second duckbill tab 23 and the first duckbill tab 13 and limit the angle, and cannot move the second in the opposite direction. The duckbill tabs 23 reduce the angle.

In addition, the first body 10 further includes a rear cover 15 , and the rear cover 15 and the at least one connecting member 1131 extending on the lower surface of the top cover 113 are fixed by the fixing member 1133 to close the accommodating space 115 and carry the limiting member 40 and Gear piece 35. Here, the connecting member 1131 is a shaft tube, and the fixing member 1133 is a screw, which is merely an example, but is not limited thereto. The rear cover 15 is further provided with a sliding slot 151, and the lever 413 passes through the sliding slot 151 to protrude from the rear cover 15. That is, usually, during operation, the user can operate the rotary button 33 with one hand, and the other hand can press the lever 413, and the peripheral wall 111 is marked with a scale 1117 on both sides of the insertion slot 117, and the scale 1117 corresponds to the gear piece. The angle of rotation of 35, and the angle between the second duckbill tab 23 and the first duckbill tab 13 can record the situation of rehabilitation.

3, FIG. 4 and FIG. 5, respectively, are partial perspective views of the first embodiment of the oral dilator, and a partial perspective view of the non-restricted state of the first embodiment of the oral dilator, and the first embodiment of the oral dilator A three-dimensional diagram of the driving direction of the example. As shown in FIG. 3 and FIG. 4, and referring to FIG. 2 at the same time, the limiting member 40 further includes a spring 47, and the toggle hinge 41 includes a lever 413 for engaging the ratchet tooth row 43 and the peripheral wall 111. The surface abuts, and the lever 413 extends from the surface of the toggle joint 41 as a strut for the force. As shown in FIGS. 3 and 5, the one-way tooth row 353 abuts against the ratchet tooth row 43, so that the rotation of the gear piece 35 is restricted so as to be rotated only in a specific direction and within a specific angle. In this state, as shown in FIG. 5, the gear piece 35 drives the second body 20 to rotate, so that the second duckbill piece 23 rotates in the first direction A1 and can be rotated stepwise through the one-way tooth row 353.

As shown in FIG. 4 and FIG. 5, when the lever 413 is stressed, the toggle hub 41 and the ratchet tooth row 43 are displaced, and the spring 47 is pressed, so that the one-way tooth row 353 and the ratchet tooth row 43 are separated. Do not touch each other. At this time, the gear piece 35 can be arbitrarily rotated, thereby driving the second body 20 to rotate in the second direction A2, and the second duckbill support piece 23 is moved toward the first duckbill support piece 13, and the second duckbill is reduced. The angle between the tab 23 and the first duckbill tab 13. When the force of the lever 413 is removed, the elastic force of the spring 47 drives the toggle joint 41 and the ratchet tooth row 43 to be reset, so that the ratchet tooth row 43 and the one-way tooth row 353 are again brought into contact with each other to return to the limit of FIG. The state of rotation of the gear piece 35.

Further, referring again to FIGS. 2A and 2B, the central axis 31 is substantially cylindrical and includes a limiting surface 315. The limiting surface 315 is a plane connecting the remaining curved surfaces of the central shaft 31. The third opening 533 of the sun gear 53 includes a third limiting side 5331, and the fourth opening 351 of the gear piece 35 includes a fourth limiting side 3511. When the central axis 31 is disposed through the first opening 119, the second opening 211, the third opening 533, and the fourth opening 351, the limiting surface 315 of the central axis 31 abuts the third limiting side 5331. And the fourth limit side 3511. Therefore, this manner can restrict the direction in which the center shaft 31 is penetrated, achieve the foolproof effect, and can restrict the rotation of the center shaft 31.

As disclosed in the above embodiments, the oral dilator is structurally ergonomically designed to enable the patient to self-operate without the assistance of others. The oral dilator can be more labor-saving through the gear module, allowing the patient to operate in a labor-saving manner. In addition, the expansion angle between the stents of the dilator can be fixed and can be easily adjusted, thereby facilitating the sequential opening of the mouth, avoiding the pain caused by excessive expansion, and observing the situation of rehabilitation, thereby facilitating and encouraging the use of the patient. In addition, avoiding chewing tissue fibrosis can improve the eating and quality of life of patients.

The preferred embodiment is disclosed above, but it is not intended to limit the creation of the novel, and any skilled person can make some modifications and refinements without departing from the scope of the novel creation. The scope of protection shall be subject to the definition of the scope of the patent application attached to this specification.

1‧‧‧ Oral Dilator
10‧‧‧First Ontology
11‧‧‧Shell
111‧‧‧ perimeter wall
1117‧‧‧ scale
113‧‧‧Top cover
1131‧‧‧Connecting parts
1133‧‧‧Fixed parts
115‧‧‧ accommodating space
117‧‧‧ Socket slot
119‧‧‧ first opening
13‧‧‧First Duckbill Tabs
131‧‧‧First contact surface
15‧‧‧Back cover
151‧‧ ‧ chute
20‧‧‧Second ontology
21‧‧‧Combination Department
211‧‧‧Second opening
23‧‧‧Second duckbill struts
231‧‧‧Second contact surface
30‧‧‧Rotating parts
31‧‧‧ center axis
311‧‧‧ first end
313‧‧‧ second end
315‧‧‧Limited surface
33‧‧‧Rotary button
35‧‧‧ Gear pieces
351‧‧‧fourth opening
3511‧‧‧ fourth limit side
353‧‧‧One-way tooth row
37‧‧‧ buckle
40‧‧‧Limited parts
41‧‧‧Driving hub
411‧‧‧First perforation
413‧‧ ‧ lever
43‧‧‧thorn tooth row
431‧‧‧Second perforation
45‧‧‧Tram
47‧‧‧ Spring
50‧‧‧ Gear Module
51‧‧‧ Gear ring
511‧‧‧First tooth block
53‧‧‧Center gear
531‧‧‧second tooth block
533‧‧‧ third opening
5331‧‧‧ third limit side
55‧‧‧ planetary gear
551‧‧‧ third tooth block
553‧‧‧Locks
A1‧‧‧ first direction
A2‧‧‧ second direction

1 is a perspective view of an oral dilator; FIG. 2A is an exploded view of the oral dilator; FIG. 2B is a bottom view of the exploded view of the oral dilator; FIG. 3 is a partial perspective view of the oral dilator limit state; A partial perspective view of an oral dilator in a non-restricted state; and FIG. 5 is a perspective view of the oral dilator operating direction.

Claims (10)

An oral dilator comprising: a first body comprising a housing and a first duckbill tab, the first duckbill tab extending from a side of the housing, the housing comprising a top cover; The second body comprises a joint portion and a second duckbill tab, the joint portion is assembled with the shell, the second duckbill tab is extended by the joint portion, and cooperates with the first duckbill tab for opening and closing a gear module comprising a gear ring, a sun gear, and a plurality of planet gears, the gear ring is disposed on the top cover and located at a periphery of the top cover, the central gear is disposed on the top cover and located at the top cover In the center of the top cover, the planetary gears are located on the top cover and are equiangularly disposed on the circumference of the sun gear, and the planetary gears respectively mesh with the gear ring and the sun gear; a rotating member including a center a shaft, and a gear piece, wherein the central shaft extends through the first body, the top cover, and the second body, the sun gear and the gear piece are sleeved on the central shaft, wherein the gear piece includes a one-way tooth Row, driven by the rotating member The first duckbill gusset and the second duckbill gusset are opened and closed; and a limiting member is disposed on the first body, the limiting member comprises a toggle hub and a ratchet tooth row, wherein the toggle The hub controls the engagement of the ratchet tooth row with the one-way tooth row, and the rotating member rotates unidirectionally when the ratchet tooth row meshes with the one-way tooth row. The oral dilator of claim 1, wherein the housing comprises a peripheral wall, the peripheral wall is connected to the top cover and a housing space is defined, and a socket is formed in the peripheral wall. The slot is connected to the accommodating space, the joint portion of the second body is inserted into the plug slot, the peripheral wall abuts the gear ring, the top cover defines a first opening, and the joint portion defines a a second opening, the central gear has a third opening, the third opening corresponds to the first opening and the second opening, and the gear piece defines a fourth opening, wherein the fourth opening corresponds to The first opening, the second opening and the third opening, the central axis passing through the first opening, the second opening, the third opening and the fourth opening, the first A body, the second body, the sun gear, the gear piece, and the rotating member are coaxially assembled. The oral dilator of claim 2, wherein the limiting member further comprises a spring and a lever, the spring abutting the spine tooth row and the inner surface of the peripheral wall, the lever being actuated by the dial A surface of the pivot extends, when the lever is stressed, the displacement of the toggle hub and the ratchet tooth row is driven, and the spring is pressed, so that the one-way tooth row does not contact the ratchet tooth row, When the lever is removed by force, the spring force of the spring drives the toggle hub and the ratchet tooth row to be reset, so that the ratchet tooth row meshes with the one-way tooth row. The oral dilator of claim 3, wherein the first body further comprises a rear cover fixed to the at least one connecting member extending on the lower surface of the top cover to close the accommodating space, The rear cover is provided with a sliding slot, and the lever passes through the sliding slot to protrude from the rear cover. The oral dilator of claim 2, wherein the central shaft includes a limiting surface, the third opening of the central gear includes a third limiting side, and the fourth opening of the gear piece comprises a first a fourth limiting side, when the central axis is disposed in the first opening, the second opening, the third opening, and the fourth opening, the limiting surface abuts the third limiting side, and The fourth limit side. The oral dilator of claim 1, wherein the rotating member further comprises a rotating button, the rotating button is located on an upper surface of the top cover, and two ends of the central shaft are respectively coupled with the rotating button and the gear piece. The oral dilator of claim 1, wherein the toggle hub comprises a first perforation, the spine tooth row comprises a second perforation, and the toggle hub and the ratchet tooth row are passed by the pin The first through hole and the second through hole are pivotally connected. The oral dilator of claim 1, further comprising a buckle that is in contact with a surface of the gear piece and sleeved at one end of the central shaft. The oral dilator of claim 1, wherein the planetary gears are respectively fixed to a surface of the top cover through a fixing member. The oral dilator of claim 1, wherein the number of teeth of the gear ring is a multiple of each of the planetary gears.