Lip protection device in intraoral approach

Abstract

The utility model provides a lip protection device in an intraoral approach operation, which comprises an adjusting arm and a lip nesting sleeve, the adjusting arm is connected with the lip nesting sleeve through a support, and the support is detachably matched with the lip nesting sleeve; the lip nest comprises an elastic layer for supporting the lip and a hydrocolloid dressing layer arranged between the elastic layer and the lip contact surface; the detachable elastic silica gel layer and the hydrocolloid dressing layer are arranged to replace a conventional metal lip nest, the comfort level of a user can be greatly improved, especially for the user needing to keep the mouth in an open state for a long time, the hydrocolloid dressing layer can keep the wettability of the contact face of the lip nest and the mouth for a long time, and the lip nesting effect is improved. The risk of soft tissue tearing and contusion is reduced; the support is detachably matched with the lip nesting sleeve, so that the elastic silica gel layer and the hydrocolloid dressing layer can be used as disposable materials, safety can be improved under the condition that sufficient disinfection conditions are not provided, and cross infection is avoided.

Description

Technical Field

[0001] The utility model relates to the field of medical surgical supplies, in particular to a lip protection device during intraoral approach surgery. Background Art

[0002] During facial bone surgery such as orthognathic surgery, the oral mucosa and lips are at risk of unintentional iatrogenic injury, especially thermal injury, which is caused by the direct contact of soft tissue with orthognathic surgical instruments, generating heat during use. In addition, the retractors used in surgery usually forcefully stretch the lips and mucosa to better expose the surgical field, which increases the risk of soft tissue tears and contusions; compared with other more serious complications (such as postoperative occlusal problems, nerve damage, bleeding, or functional problems), these complications of the oral mucosa and lips may be ignored by surgeons; however, they increase the morbidity of patients and sometimes leave permanent scars that are visible to the naked eye.

[0003] In the above surgeries, the advantages of the intraoral approach over the extraoral approach are: in addition to leaving no skin scars, the intraoral approach is not easy to damage the mandibular marginal branch of the facial nerve, and can simultaneously remove the hypertrophic masseter and buccal fat pad. For patients with a wide face, large pieces of mandibular angle and mandibular marginal bone can be removed to achieve a more ideal surgical effect. For patients with retracted chin, chin augmentation can be performed through the intraoral approach at the same time. However, the intraoral approach usually requires the use of a mouth opener / traction device for a long time to open the lips in order to better expose the surgical field of view.

[0004] Therefore, providing a traction device that can both expose the incision and protect the lips from damage is the key to solving the above problems. Existing silicone mouth openers have the advantages of easy use, comfortable touch, and low replacement cost. However, due to its soft material, it needs to be shaped in one piece to avoid displacement during use, resulting in the need to produce different types of mouth openers to suit different users, and it is impossible to flexibly change the size or width of the opening during use. Hydrocolloid dressings have a good ability to absorb wound exudate. After absorbing the exudate, the hydrophilic particles in the dressing can form a semi-solid substance similar to gel and adhere to the base of the wound, providing and maintaining a moist environment that is conducive to wound healing.

[0005] In summary, we attempt to provide a protective mouth opener that does not cause lip damage and can adjust the lip opening angle during intraoral approach surgery (which requires the use of a mouth opener for a long time to maintain the mouth open posture). Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and provide a lip protection device for intraoral approach surgery. The technical solution adopted by the utility model is as follows:

[0007] A lip protection device for intraoral approach surgery comprises an adjustment arm and a lip nest, wherein the adjustment arm and the lip nest are connected via a bracket, and the bracket and the lip nest are detachably matched; the lip nest comprises an elastic layer supporting the lips and a hydrocolloid dressing layer arranged between the elastic layer and the contact surface of the lips.

[0008] Preferably, the adjusting arm comprises a hinged left adjusting arm and a right adjusting arm, and the left and right adjusting arms are connected via a support shaft.

[0009] Preferably, the adjustment arm is connected to the bracket through a rotating assembly, the rotating assembly includes a rotating shaft, an axial hole, and a pressing piece. The rotating shaft is sleeved with a limiter that can only slide axially relative to the rotating shaft. The outer periphery of the limiter is axially provided with a plurality of convex strips. The axial hole is provided on the base of the bracket, and the axial hole is provided with a plurality of positioning grooves that match the size, shape, and position of the plurality of convex strips. The pressing piece includes a sleeve sleeved on the rotating shaft; a limiter seat is provided at one end of the rotating shaft away from the pressing piece, and a first elastic piece is installed between the limiter seat and the limiter. The adjustment arm is provided with a mounting hole, the limiter seat is installed inside the adjustment arm and allows the rotating shaft to pass through the mounting hole.

[0010] Preferably, a plurality of convex strips axially arranged on the outer periphery of the limiting member are centrally symmetrically distributed and have at least one symmetry axis passing through the axis center, and a plurality of positioning grooves matching the number and position of the plurality of convex strips are arranged in the axial hole.

[0011] Preferably, the bracket is provided with a fixing claw for fixing the lip nesting, and a card slot / adhesive slot cooperating with the fixing claw is provided on the outer side of the lip nesting; the fixing claw includes an upper claw and a lower claw provided on each adjusting arm, and the upper claw and the lower claw on each adjusting arm are arc-shaped pieces, and the arc-shaped piece at one end close to the inner lip is shorter than the arc-shaped piece at one end away from the inner lip, and an arc-shaped groove cooperating with the arc-shaped piece is provided on the lip nesting; the upper claw and the lower claw on each adjusting arm are connected by a telescopic rod.

[0012] Preferably, one of the left and right adjusting arms is fixedly connected to a gear slot, an arc-shaped handle is provided at the end of the gear slot that is not fixedly connected to the adjusting arm, a gear shifting protrusion is provided on the other arm, and a plurality of gear shifting grooves cooperating with the gear shifting protrusion are provided in the gear slot; a second elastic member is provided between the left and right adjusting arms, and the second elastic member is compressed when the position of the left and right adjusting arms is adjusted.

[0013] The beneficial effects of the utility model are as follows: a lip protection structure is added to the conventional mouth opener, and a detachable elastic silicone layer and a hydrocolloid dressing layer are provided to replace the conventional metal lip nest, which can greatly improve the comfort of the user, especially for users who need to keep their mouths open for a long time. The hydrocolloid dressing layer can maintain the wettability of the contact surface between the lip nest and the lips for a long time, reducing the risk of soft tissue tearing and contusion; the bracket and the lip nest are detachable and matched, so the elastic silicone layer and the hydrocolloid dressing layer can be used as disposable materials, which can improve safety and avoid cross infection when sufficient disinfection conditions are not available. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the embodiment 2 of the utility model when the lip is assembled and nested;

[0017] Figure 3 This is a schematic diagram of the structure of the rotating assembly of Embodiment 1-2 of the utility model;

[0018] Figure 4 This is a schematic diagram of the fixing claw structure of Example 2 of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0020] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0021] Example 1

[0022] A lip protection device for intraoral approach surgery includes an adjustment arm 1 and a lip nest 2. The adjustment arm 1 and the lip nest 2 are connected by a bracket 3, and the bracket 3 and the lip nest 2 are detachably matched; the lip nest 2 includes an elastic layer 21 that supports the lips and a hydrocolloid dressing layer arranged between the elastic layer 21 and the contact surface of the lips. The elastic layer is made of silicone material, and the hydrocolloid dressing layer is adhered to the elastic layer. The hydrocolloid dressing layer in this embodiment can be purchased; in the case of long-term opening of the mouth, the contact surface between the metal bracket and the lips is prone to dryness, causing friction damage or cracks, but the hydrocolloid dressing can keep the contact surface soft and moist, and is easy to replace after a one-time use.

[0023] The adjustment arm 1 includes a hinged left adjustment arm and a right adjustment arm, and the left and right adjustment arms are connected by a support shaft; those skilled in the art can also make adjustments to set the lip nesting 2 only on a single arm.

[0024] The adjusting arm 1 is connected to the bracket 3 through a rotating assembly 11, which includes a rotating shaft 111, an axial hole 113, and a pressing piece 115. A limiting piece 112 is sleeved on the rotating shaft 111 and can only slide axially relative to the rotating shaft 111. The outer periphery of the limiting piece 112 is axially arranged. The axial hole 113 is opened on the base of the bracket 3, and the axial hole 113 is provided with four positioning grooves 114 that match the size, shape and position of the four convex strips. The pressing piece 115 includes a sleeve 116 sleeved on the rotating shaft 111; a limiting seat is provided on the end of the rotating shaft 111 away from the pressing piece 115, and a first elastic piece 117 is installed between the limiting seat and the limiting piece 112; a mounting hole is provided on the adjusting arm, and the limiting seat is installed inside the adjusting arm and allows the rotating shaft to pass through the mounting hole.

[0025] The four convex strips arranged along the axial direction on the outer periphery of the limiting member 112 are distributed symmetrically with the center and have at least one symmetry axis passing through the axis center. The shaft hole 113 is provided with four positioning grooves 114 that match the number and position of the four convex strips.

[0026] When in use, the pressing member 115 is pressed from the outside, so that the pressing member 115 pushes the limiting member 112 to slide axially until the four convex strips are disengaged from the four positioning grooves 114. At this time, the shaft hole 113 cooperates with the sleeve 116 to allow the bracket 3 to rotate circumferentially relative to the rotating shaft 111. During the rotation of the bracket 3, the pressing member 115 is stopped. When the convex strip on the limiting member 112 and the positioning groove 114 in the shaft hole 113 rotate to a new matching angle, the limiting member 112 pushes the sleeve 116 under the action of the first elastic member 117 and slides to the matching position with the shaft hole 113. At this time, the convex strip on the limiting member 112 is re-engaged in the positioning groove 114, and the rotating bracket 3 is positioned at a new position. The device is provided with four convex strips and four positioning grooves 114, so that the bracket 3 has four adjustable position states; those skilled in the art can set more / less position states according to the rotation positioning principle of the device.

[0027] The bracket 3 is provided with a fixing claw 31 for fixing the lip nest 2; the fixing claw 31 includes an upper claw 311 and a lower claw 312 arranged on each adjusting arm, the upper claw 311 and the lower claw 312 on each adjusting arm are arc-shaped pieces, and the arc-shaped piece at one end close to the inner lip is shorter than the arc-shaped piece at one end away from the inner lip, and the lip nest 2 is provided with an arc-shaped groove 211 that cooperates with the arc-shaped piece; the upper claw 311 and the lower claw 312 on each adjusting arm are connected by a fixing rod.

[0028] One of the left and right adjusting arms is fixedly connected with a gear slot 4, and an arc-shaped handle 43 is provided at the end of the gear slot 4 that is not fixedly connected with the adjusting arm for easy shifting and adjusting, and a gear shifting protrusion 41 is provided on the other arm, and a plurality of gear shifting grooves cooperating with the gear shifting protrusion 41 are provided in the gear slot 4; a second elastic member 42 is provided between the left and right adjusting arms, and the elastic member 42 is compressed when adjusting the positions of the left and right adjusting arms.

[0029] Example 2

[0030] On the basis of Example 1, a telescopic rod 32 is arranged between the upper claw and the lower claw. The extension and retraction of the telescopic rod requires a certain external pressure (so it is compressed only when the patient applies a certain force), and can only be extended and retracted within a certain range. The mouth opening width of the patient can be adjusted while the mouth opening height can be adaptively adjusted, so that the patient has a certain range of autonomous movement when opening his mouth (without affecting diagnosis and treatment), avoiding maintaining a stiff mouth opening state for a long time that causes facial muscle soreness or even strain. It is suitable for scenarios where patients need to open their mouths for a long time.

[0031] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A lip protection device for intraoral access surgery, comprising an adjustment arm (1) and a lip nest (2), characterized in that: The regulating arm (1) is connected to the lip nest (2) via a bracket (3), and the bracket (3) and the lip nest (2) are detachably matched; The lip nest (2) comprises an elastic layer (21) that supports the lips, and a hydrocolloid dressing layer arranged between the elastic layer (21) and the contact surface of the lips.

2. The lip protection device for intraoral approach surgery according to claim 1, characterized in that: The adjustment arm (1) comprises a hinged left adjustment arm and a right adjustment arm.

3. The lip protection device for intraoral approach according to claim 1 or 2, characterized in that: The adjusting arm (1) is connected to the bracket (3) via a rotating assembly (11). The rotating assembly (11) comprises a rotating shaft (111), an axial hole (113), and a pressing piece (115). A limiting piece (112) is sleeved on the rotating shaft (111) and can only slide axially relative to the rotating shaft (111). The outer periphery of the limiting piece (112) is provided with a plurality of convex strips along the axial direction. The axial hole (113) is formed on the base of the bracket (3), and a plurality of positioning grooves (114) matching with the plurality of convex strips are provided in the axial hole (113). The pressing piece (115) comprises a sleeve (116) sleeved on the rotating shaft (111). A limiting seat is provided on one end of the rotating shaft (111) away from the pressing piece (115), and a first elastic piece (117) is installed between the limiting seat and the limiting piece (112).

4. The lip protection device for intraoral approach surgery according to claim 3, characterized in that: The plurality of convex strips arranged axially on the outer periphery of the limiting member (112) are distributed symmetrically with respect to the center and have at least one symmetry axis passing through the axis center. The shaft hole (113) is provided with a plurality of positioning grooves (114) matching the number and position of the plurality of convex strips.

5. The lip protection device for intraoral approach surgery according to claim 4, characterized in that: The bracket (3) is provided with a fixing claw (31) for fixing the lip nesting (2).

6. The lip protection device for intraoral approach surgery according to claim 5, characterized in that: The fixed claw (31) comprises an upper claw (311) and a lower claw (312) which are arranged on the bracket (3) of each adjustment arm.

7. The lip protection device for intraoral approach surgery according to claim 6, characterized in that: The upper claw (311) and the lower claw (312) are arc-shaped pieces, and the arc-shaped piece at one end close to the inner lip is shorter than the arc-shaped piece at one end away from the inner lip. The lip nest (2) is provided with an arc-shaped groove (211) that cooperates with the arc-shaped piece.

8. The lip protection device for intraoral approach surgery according to claim 6, characterized in that: The upper claw (311) and the lower claw (312) are connected via a telescopic rod (32).

9. The lip protection device for intraoral approach surgery according to claim 2, characterized in that: One of the left and right adjustment arms is fixedly connected to a gear slot (4), and the other arm is provided with a gear adjustment protrusion (41). The gear slot (4) is provided with a plurality of gear adjustment grooves that cooperate with the gear adjustment protrusion (41).

10. The lip protection device for intraoral approach surgery according to claim 9, characterized in that: A second elastic member (42) is provided between the left and right adjustment arms.

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