Multifunctional auxiliary fixator for gingival suture

Abstract

The invention discloses an auxiliary fixator for gingival suture, which belongs to the technical field of oral medical instruments and comprises a U-shaped sleeve sleeved on teeth and positioning devices symmetrically fixed on two sides of the U-shaped sleeve. Each positioning device comprises a U-shaped titanium support, a first extension arm, a second extension arm and a third extension arm, the first extension arm, the second extension arm and the third extension arm are arranged on a cross arm of the U-shaped titanium support in a sliding mode, and the inner end of the first extension arm is used for pressing an incised gingiva to a gingival valley area and located on the edge of an incision; the inner end of the second extension arm is used for pressing a bone protection film covering gingiva-bone, and the inner end of the third extension arm is used for pressing a pressing groove mucosa. The multifunctional auxiliary fixator for gingival suturing effectively solves the problem of displacement of gingiva and bone protective membranes in periodontal surgery, is suitable for complex surgery scenes of Angshu three-class and four-class dentition defects and the like, and has the effects of opening and opening lips and suturing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oral medical instruments, in particular to a gingival suturing auxiliary fixator. BACKGROUND

[0002] In microapical surgery, periodontal surgery (such as bone grafting, guided tissue regeneration, etc.), implantation, the precise suturing of gingiva is a key link for postoperative healing. However, the prior art has the following defects:

[0003] 1. High risk of tissue displacement: local swelling after bone grafting or narrow operation space, the incised gingiva is prone to displacement during suturing, resulting in misalignment of the incision and affecting the healing quality;

[0004] 2. Difficulty in fixing the bone protection membrane: the bone protection membrane (such as collagen membrane) needs to be attached to the surface of the alveolar bone to guide bone regeneration, but the traditional suturing is difficult to fix its position, and is prone to displacement or curling, reducing the bone shaping effect;

[0005] 3. Low operation efficiency: conventional suturing requires repeated adjustment of the gingival position, prolonging the operation time and increasing the risk of infection.

[0006] Therefore, there is an urgent need for a special instrument that can assist in fixing the gingiva and bone protection membrane and improve the suturing accuracy. SUMMARY

[0007] The purpose of the present application is to provide a multifunctional gingival suturing auxiliary fixator to overcome the technical defects in the prior art.

[0008] The technical scheme adopted to achieve the purpose of the present application is:

[0009] A multifunctional gingival suturing auxiliary fixator, comprising a U-shaped sleeve for covering the teeth, and symmetrical positioning devices fixed on both sides of the U-shaped sleeve, each positioning device comprising a U-shaped titanium bracket, a first extension arm, a second extension arm and a third extension arm slidingly arranged on the horizontal arm of the U-shaped titanium bracket, the inner end of the first extension arm being used to press the incised gingiva to the gingival valley area, located at the edge of the incision, the inner end of the second extension arm being used to press the bone protection membrane covering the gingiva-bone, and the inner end of the third extension arm being used to press the alveolar mucosa.

[0010] In the above technical scheme, the two longitudinal arms of the U-shaped titanium bracket are respectively threadedly connected with a support, and the support is tightly attached to the side surface of the tooth through a buffer gasket.

[0011] In the above technical scheme, the surface of the U-shaped titanium bracket is polished.

[0012] In the above technical scheme, the sliding through hole is arranged on the cross arm of the U-shaped titanium support, the first extension arm, the second extension arm and the third extension arm are arranged in the sliding through hole and are limited by the sliding sleeve, and the first extension arm, the second extension arm and the third extension arm are fastened to the cross arm by the bolts.

[0013] In the above technical scheme, the inner end of the first extension arm is provided with a U-shaped groove, an elastic fixed film support is sleeved on the groove wall of the U-shaped groove, the elastic fixed film support is tightly attached to the edge of the gingival incision, and a needle hole is formed between the U-shaped groove and the elastic fixed film support.

[0014] In the above technical scheme, the elastic fixed film support is made of a medical-grade elastic material, specifically, silicone rubber or polyurethane.

[0015] In the above technical scheme, the inner end of the second extension arm is connected with a silica gel pad through a sub-mother buckle, the surface of the silica gel pad is smooth, and the thickness of the silica gel pad is 2-5 mm.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] The multifunctional gingival suture auxiliary fixator effectively solves the problem of gingival and bone protection membrane displacement in periodontal surgery, is suitable for complex surgical scenes such as Class III and Class IV dentition defects, and takes into account the opening and suture functions. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a schematic diagram of the overall structure of the multifunctional gingival suture auxiliary fixator.

[0019] Fig. 2 It is a local enlarged view of the multifunctional gingival suture auxiliary fixator.

[0020] In the figure: 1: U-shaped sleeve, 2: U-shaped titanium support, 3: tooth, 4: first extension arm, 5: second extension arm, 6: third extension arm, 7: support, 8: sliding sleeve, 9: bolt, 10: U-shaped groove, 11: elastic fixed film support, 12: gingival incision, 13: bone protection film. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below in combination with the drawings and specific examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0022] As Figs. 1-2As shown, a multifunctional gingival suture auxiliary fixator includes a U-shaped sleeve 1 sleeved on a tooth 3, and positioning devices symmetrically fixed on both sides of the U-shaped sleeve 1, each of the positioning devices includes a U-shaped titanium support 2, a first extension arm 4, a second extension arm 5 and a third extension arm 6 slidingly arranged on the cross arm of the U-shaped titanium support 2, the inner end of the first extension arm 4 is used to press the incised gingiva to the gingival valley area, located at the incision edge, the inner end of the second extension arm 5 is used to press the bone protection film 13 covering the gingival-bone, and the inner end of the third extension arm 6 is used to press the alveolar mucosa.

[0023] Further, the inner ends of the two longitudinal arms of the U-shaped titanium support 2 respectively pass through the U-shaped sleeve 1, and are connected with a support 7 through threads, the support 7 is tightly attached to the side of the tooth 3 through a buffer gasket, the surface of the U-shaped titanium support 2 is polished, the biocompatibility conforms to the ISO 10993 standard, and the U-shaped titanium support 2 is rotated on the longitudinal arm through the two supports 7 to realize extension, height adjustment.

[0024] Further, sliding through holes are formed in the cross arm of the U-shaped titanium support 2, the first extension arm 4, the second extension arm 5 and the third extension arm 6 are arranged in the sliding through holes and are limited by a sliding sleeve 8, after the sliding sleeve 8 drives the first extension arm 4, the second extension arm 5 and the third extension arm 6 to slide to a set position in the sliding through holes, the first extension arm 4, the second extension arm 5 and the third extension arm 6 are fastened by a bolt 9 to be limited in a specific position.

[0025] Further, the inner end of the first extension arm 4 is provided with a U-shaped groove 10, an elastic fixed film support 11 is sleeved on the groove wall of the U-shaped groove 10, the elastic fixed film support 11 is tightly attached to the edge of the gingival incision 12, a needle hole is formed between the U-shaped groove 10 and the elastic fixed film support 11 to provide a precise penetration path for the suture needle, improve the suture efficiency and alignment accuracy, preferably, the elastic fixed film support 11 is made of a medical grade elastic material, specifically, silicone rubber or polyurethane.

[0026] Further, the inner end of the second extension arm 5 is clamped with a silica gel pad through a mother-daughter buckle, the surface of the silica gel pad is smooth, the thickness is 2-5 mm, and the silica gel pad is elastic and pre-bendable, is used to buffer the pressure on the gingiva, can be cut to adapt to the thickness of soft tissue in different surgical areas, and the silica gel pad can be elastically pre-bent to adapt to the gingival alveolar bone curvature.

[0027] Taking the suture after bone grafting of an Angle four type dentition defect patient as an example, the operation method of the gingival suture auxiliary fixator is as follows:

[0028] Step 1, preoperative preparation: according to the surgical area (such as the mesial and distal adjacent surfaces of the implant), select the appropriate size of pure titanium bracket (length covering the interproximal space, width adapting to the depth of gingival valley); trim the silicone pad to make it more fit the patient's gums,

[0029] Step 2, if necessary, cover the bone protection film on the alveolar bone, cover each of the two adjacent teeth 3 with a U-shaped sleeve 1, rotate the support 7 to make it contact the implant neck or alveolar bone surface (the force is appropriate for the gum without compression), at the same time adjust the height of the U-shaped titanium bracket 2 and the retaining bolt 9 until the head of the bolt 9 is in close contact with the bracket (the force is appropriate for the gum without compression), through sliding and pushing and pulling the first extension arm 4, the second extension arm 5 and the third extension arm 6 to ensure that they are in the appropriate position and compress the corresponding area, then fix the first extension arm 4, the second extension arm 5 and the third extension arm 6 through the bolt 9, that is, the inner end of the first extension arm 4 compresses the edge of the gum incision 12, the inner end of the second extension arm 5 compresses the edge of the bone protection film, and the third extension arm 6 compresses the turned-up gum on the alveolar bone surface; if no bone protection film is needed, the second extension arm 5 is reserved.

[0030] Step 3, pass the suture needle through the needle hole of the first extension arm 4, and suture the gum incision 12 in turn (the elastic fixation film support 11 provides continuous pressure to prevent displacement); after the suture is completed, remove the entire fixator, the elastic fixation film support 11 and the silicone pad are disposable and discarded; the U-shaped titanium bracket 2 is sterilized and reused.

[0031] For ease of explanation, spatially relative terms, such as "upper", "lower", "left", "right", and the like, can be used herein for the purpose of explaining an orientation or position of one element or feature to another element or feature, as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if a device is inverted, then an element that is described as being on the other element or feature "below" or "beneath" another element or feature would then be oriented "above" or "on" the other element or feature. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0032] Also, the relational terms, such as "first" and "second", and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between or among such entities or actions.

[0033] The above description is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A multifunctional gingival suture auxiliary fixator, characterized in that, The device includes a U-shaped sleeve that fits over the teeth and positioning devices symmetrically fixed on both sides of the U-shaped sleeve. Each positioning device includes a U-shaped titanium support, a first extension arm, a second extension arm, and a third extension arm that are slidably disposed on the transverse arm of the U-shaped titanium support. The inner end of the first extension arm is used to press the cut gingiva into the gingival valley region and is located at the edge of the incision. The inner end of the second extension arm is used to press the bone protection membrane covering the gingiva-bone. The inner end of the third extension arm is used to press the alveolar mucosa.

2. The multifunctional gingival suture auxiliary fixator according to claim 1, characterized in that, The two longitudinal arms of the U-shaped titanium support are each threadedly connected to a support, which is in close contact with the side of the tooth through a buffer pad.

3. The multifunctional gingival suture auxiliary fixator according to claim 1, characterized in that, The surface of the U-shaped titanium support is polished.

4. The multifunctional gingival suture auxiliary fixator according to claim 1, characterized in that, A sliding through hole is provided on the cross arm of the U-shaped titanium bracket. The first extension arm, the second extension arm and the third extension arm are all set in the sliding through hole and limited by the sliding sleeve, and are fastened to the cross arm by bolts.

5. The multifunctional gingival suture auxiliary fixator according to claim 1, characterized in that, The inner end of the first extension arm is provided with a U-shaped groove, and an elastic fixation membrane support is fitted on the groove wall of the U-shaped groove. The elastic fixation membrane support is close to the edge of the gingival incision, and a pinhole is formed between the U-shaped groove and the elastic fixation membrane support.

6. The multifunctional gingival suture auxiliary fixator according to claim 1, characterized in that, The elastic fixation membrane support is made of medical-grade elastic material, specifically silicone rubber or polyurethane.

7. The multifunctional gingival suture auxiliary fixator according to claim 1, characterized in that, The inner end of the second extension arm is connected to a silicone pad via a snap fastener. The silicone pad has a smooth surface and a thickness of 2-5mm.

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