JP6161151B2 - Cervical spine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cervical spine, and more particularly to a cervical spine that facilitates fixing / releasing an operation of tilting a chin rest portion forward.

The conventional cervical spine has been developed to correct the cervical spine posture (head posture) to a neutral state, and can be adjusted in size or fine-tuned according to the individual body shape of the patient, thereby strengthening the posture. A fixing function is required.
Basically, there are many types of orthosis having a chin rest, but there is a problem that it becomes difficult to move a jaw such as a meal by fixing firmly. Recently, there have been proposed ones in which the support position of the chin rest part can be adjusted for eating and ones having a function of tilting the chin rest part. Since the adjustment mechanism of the part is used in combination with the height and tilting mechanism for maintaining the posture, the reproducibility to the fixed posture after meals is low, and there are few that can easily fix and release the tilting operation.

Shinshin Kaihei 6-3311 JP-A-7-250854 JP2000-014686A JP2012-235993

Conventional cervical vertebra orthosis can remove the chin rest part during meals, but many require troublesome fixation / release and low reproducibility (as described above).
For example, an orthosis having a function of adjusting the height of the chin rest as in Patent Document 1 can adjust the position of the chin rest by reducing the height during a meal. However, it takes time to adjust the height again after eating, and the reproducibility of returning the position of the chin rest to the original state is also reduced.
Moreover, in a brace like patent document 2, the jaw becomes free by removing the hook-and-loop fastener at the time of eating, but because it is a belt-like structure and fixed by hook-and-loop fastener, The chin is not supported in a state where it is placed on the chin rest, but there is a problem in reproducibility and fixation of the position adjustment of the chin rest.
Moreover, although the above-mentioned problem is solved regarding the method of releasing the fixation by tilting the jaw as in Patent Document 4, since the fixation and release are performed by turning the fixing knob, the hands of elderly people, rheumatism, etc. However, for patients who cannot move dexterously, the operability is low, and the fixing method becomes complicated, so the problem that the operation cannot be performed easily remains.

In view of such problems, the present invention can tilt the chin rest part forward with a simple operation during a meal, and when the meal is over, An object of the present invention is to provide a cervical spine that can be restored to the chin support posture by a simple operation and can stably support the chin at a predetermined height.

In order to achieve the above object, the cervical spine according to the present invention has a chin support portion and a chest mounting portion that are rotatably connected, and the chin support portion tilts forward with the chin support posture. A cervical spine that is configured to be switchable to a release posture, wherein an engagement / release mechanism including an operation member is provided across the jaw placement portion and the chest mounting portion. The mechanism engages and fixes the jaw mounting portion to the chest mounting portion in a chin support posture by an operation of rotating the jaw mounting portion and operates the operation member in one direction to engage the jaw mounting portion. It is comprised so that it can cancel | release and can switch to a chin support cancellation | release posture.

The cervical spine according to the present invention is a device for cervical vertebrae that is mounted on the neck of a human body, supports the jaw at an appropriate height, and corrects and maintains the spine in the correct posture (arranged state). The type of trouble (cause or purpose of treatment) is not a problem.
Also, the attachment of the chest mounting part to the chest or the attachment and fixing means to the neck of the chin rest part usually uses a belt or the like, but it does not ask for such means as a hook-and-loop fastener or a string connection. Absent. In addition, the chest mounting portion may use an appropriate shape, material, and the like.

According to the cervical vertebra orthosis according to the present invention, switching between the support posture and the release posture of the chin rest portion can be performed by a simple operation. This simple operation means that a so-called one-touch operation in which the operation member is operated in only one direction is sufficient. Therefore, when the patient eats a meal, the chin rest can be tilted forward by a simple operation. In addition, regarding the return to the support posture after meal and the fixing engagement operation, it is possible to automatically fix the movement of the operation member only by pushing the chin rest portion against the chest mounting portion. The jaws can be supported by reproducing the same posture as before release. This simplicity of operation has the advantage that switching can be performed easily and easily even for patients such as elderly people and rheumatism whose hands cannot be skillfully moved and the usage is easy to understand.
Other advantages of the present invention will become apparent from the description of the following examples.

The front view of the state which mounted | wore the cervical spine orthosis concerning this invention. The perspective view which tilted the jaw mounting part of the cervical spine orthosis concerning this invention ahead. The partial cross section perspective view which showed the internal structure at the time of the support attitude | position of the jaw mounting part concerning this invention. The partial cross section perspective view which showed the internal structure at the time of the releasing attitude | position of the jaw mounting part concerning this invention. The fragmentary sectional front view of the principal part of the engagement / release mechanism of the cervical spine orthosis concerning this invention. The disassembled perspective view of the principal part of the engagement / release mechanism of the cervical spine orthosis concerning this invention. The disassembled side view of the principal part of the engagement / release mechanism of the cervical spine orthosis concerning this invention. The partial cross section perspective view of the principal part at the time of the engagement release operation of the engagement / release mechanism which shows one effect | action of the cervical vertebra orthosis concerning this invention. The partial cross-sectional perspective view of the principal part at the time of the forward inclination by the engagement cancellation | release of the engagement / release mechanism which shows one effect | action of the cervical vertebra orthosis concerning this invention. The front view which shows another aspect of the tilting part of the cervical vertebra orthosis concerning this invention. The perspective view which shows another aspect of the tilting part of the cervical vertebra orthosis concerning this invention. The front view which shows another aspect of the engagement / release mechanism of the cervical spine orthosis concerning this invention. The expansion perspective view of the principal part which shows another aspect of the engagement / release mechanism of the cervical spine orthosis concerning this invention.

In carrying out the present invention, as described in claim 2, the engagement / release mechanism is provided with a fixing member having a cam surface, and the operation member has a contact portion that contacts the cam surface. An urging mechanism that is provided in contact with the cam surface and operatively displaces the operation member to engage the fixing member is interlocked with the operation portion, and the urging mechanism is operated by one-way operation of the operation portion. It is preferable that the engagement between the fixing member and the operation member is released by actuating.
As described above, the structure using the cam surface for the operation transmission from the operation member to the engagement / release mechanism can ensure a smooth movement with less trouble and reliably pull out the urging force of the urging mechanism. In this case, the release operation can be performed.

In carrying out the present invention, as described in claim 3, the urging mechanism is formed of a band-shaped member integrally formed with the operation member made of synthetic resin, and is elastically deformed by a pressing operation of the operation member. And is preferably configured to restore.
In this way, by configuring the urging mechanism integrally with the operation member, it is possible to configure the whole while reducing the number of parts by utilizing the elasticity of the constituent material.

In carrying out the present invention, as described in claim 4, the rotation connecting portion is made of a flexible material and is configured to connect the jaw placement portion and the chest mounting portion. preferable.
In this way, the jaw mounting portion can be tilted forward using the elastic characteristics of the connecting member, not the connecting structure by the pivot pin, so that the structure is simple, which leads to cost reduction and trouble occurrence. Few.

A preferred embodiment of the cervical spine according to the present invention will be described in detail below with reference to the drawings. As shown in FIGS. 1 to 9, the cervical spine includes a chest mounting portion 1 that is detachably mounted on the chest and a chin rest portion 2 that is mounted on the neck. The jaw placement part 2 and the chest mounting part 1 are connected via an engagement / release mechanism 3 so that the jaw placement part 2 is tilted forward and a jaw placement release attitude. It is configured to be freely switchable. Such a configuration will be described in detail below.

The chest mounting portion 1 is made of synthetic resin, and here is molded using polyethylene as a material. Although not shown in the figure for suitable wearing, a protective member such as a pad is provided on the human body contact side.
Further, the attachment to the chest is performed by tightening behind by the upper, lower, left, and right belt members 4 provided on the chest attachment portion 1, but such a belt configuration belongs to the prior art. The detailed description in is omitted.

The chin mounting portion 2 is also made of a synthetic resin, and here is molded into a shape suitable for mounting the chin by polyacetal. Similarly, a protective member such as a pad is provided on the human body contact side for suitable wearing, and the belt member 4 similar to the chest mounting portion 1 can be rotated and fixed to the back of the head. Has been.
Further, the chin mounting portion 2 is provided with support pieces 5 having concavo-convex shapes along the longitudinal direction on the left and right side portions, and the support pieces 5 are formed in the longitudinal direction of the chin support member 6. By engaging with the concavo-convex shape portion 7, the height with respect to the position of the jaw can be adjusted, and the knob 8 fitted and arranged on the upper portion of the jaw support member 6 can be fixed and released by rotating 90 degrees. Is configured to be possible.

The engagement / release mechanism 3 engages and fixes the chin rest 2 to the chest mounting portion 1 in a chin support posture by an operation of tilting the chin rest 2 backward, and has a hole in the center. By operating the operation member 9 formed with the (window) in one direction (downward here), the engagement can be released and switched to the chin support release posture. The mechanism 3 includes the chin support member 6, the tilt member 10, and the fixed member 11. The chin support member 6 and the tilting member 10 are fixed by three resin pins, and the fixing member 11 is fixed to the chest mounting portion 1 by six pins.
Further, an operation member 9 is disposed between the tilting member 10 and the chin support member 6, and the tilting member 10 is provided with two pivot pins 12 having the same horizontal axis, and is fixed to the tilting member 10. By combining with the bearing portion 13 formed on the member 11, the chin mounting portion 2 and the chest mounting portion 1 are pivotally connected.

The fixing member 11 has an arc-shaped cam surface that generates a cam action, and is provided with a locking claw 14 for engaging with the operation member 9. Similarly, an arcuate cam surface 15 that produces a cam action is formed.
At the time of engagement, as shown in FIG. 9, the operation member 9 is automatically slid downward by automatically pushing down the jaw support member 6 so that the cam shapes come into contact with each other to generate a downward component force. The two linear resin springs 16 formed on the operation member 9 bend, allow relative advancement of the locking claws 14, and then elastically restore, so that after the operation member 9 is slid upward, The engaging claw 14 is configured to be slidable.

As for the release operation, as shown in FIG. 8, the operation member 9 is pressed and slid in one direction, here downward, so that the locking claw 14 and the operation member are operated by the cam action described above. 9 is released, the jaw mounting member 2 can be tilted forward, and the jaw can be moved.

(Another aspect of tilting member)
Here, another aspect of the tilting member 10 will be described with reference to FIGS. That is, the difference from the above embodiment is that the jaw mounting portion 2 is tilted. Instead of the pivot pin 12, the engagement / release mechanism 3 is flexible in that the tilting member 10 and the fixing member 11 are flexible. It is the place comprised by connecting with the sex material 17.
Specifically, a plate-like flexible material 17 (here, soft polyethylene is used) having a length of about 30 mm, a width of 40 mm, and a thickness of 1.5 mm is screwed with the tilting member 10 and the This is done by fastening to the fixing member 11.

Here, the flexible material 17 is a synthetic resin having flexibility. However, such a material does not cause brittle fracture, and bending and bending are frequently repeated in addition to the above materials. Any known element may be substituted.

However, instead of such a synthetic resin material, a plate-like body region (belt-like body) such as a nonwoven fabric, a woven fabric, or leather may be used.
By using the flexible material 17 to connect the tilting member 10 and the fixing member 11, it is possible to obtain a tilting motion substantially equivalent to that of the pivot pin 12.
In addition, about the other structure of the different aspect 1 of the said engagement / release mechanism 3, and a member number, the description is abbreviate | omitted about the same thing as the said Example.

(Another aspect of the engagement / release mechanism)
Next, another embodiment of the arrangement of the operation member 9 of the engagement / release mechanism 3 will be described with reference to FIGS.
Here, the operation members 9 are shown in different forms. As shown in FIG. 12, the operation member 9 arranged in the upper center of the chin support member in the above embodiment is arranged on both side surfaces of the chin support member 6 here. The structure of the unlocking and the internal structure are the same as those in the above-described embodiment and are the same.
In short, what was the operation in the vertical direction here is that it is performed by a horizontal pressing operation, and it is sufficient to open one hand and press with the thumb and middle finger. If the engagement is not released, the chin mounting portion 2 cannot be tilted forward, which leads to prevention of erroneous operation.

The cervical spine according to the present invention can be easily operated to fix and release the posture, and there is a possibility that this can be applied not only to the cervical vertebra but also to the orthotic structure of other parts such as the elbow and knee. There is a wide range of applications.

1: Chest mounting part 2: Jaw placement part 3: Engagement / release mechanism 9: Operation member 11: Fixing member

Claims (3)

A cervical vertebra orthosis in which a chin rest portion and a chest mounting portion are rotatably connected, and the chin rest portion is configured to be switchable between a chin support posture and a chin support release posture tilted forward. An engagement / release mechanism having an operation member is provided across the jaw placement portion and the chest mounting portion, and the engagement / release mechanism rotates the jaw placement portion by an operation of rotating the jaw placement portion. The mounting portion is engaged and fixed to the chest mounting portion in a chin support posture state, and the operation member is operated in one direction to release the engagement and switch to a chin support release posture. A cervical orthosis characterized by The engagement / release mechanism is provided with a fixing member having a cam surface, and the operation member is provided with a contact portion that comes into contact with the cam surface. An urging mechanism that is operatively displaced and engaged with the fixing member is interlocked with the operation portion, and the urging mechanism is operated by one-way operation of the operation portion to engage the fixing member with the operation member. The cervical spine according to claim 1, wherein the cervical spine is configured to release the cervical spine. The biasing mechanism is formed of a band-shaped member formed integrally with the operation member made of synthetic resin, and is configured to be elastically deformed and restored by a pressing operation of the operation member. The cervical spine orthosis according to claim 1 or 2.