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WO2025035225A1 - Dispositif de fixation ou de blocage intermaxillaire, permettant d'immobiliser le maxillaire et la mâchoire - Google Patents

Dispositif de fixation ou de blocage intermaxillaire, permettant d'immobiliser le maxillaire et la mâchoire Download PDF

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Publication number
WO2025035225A1
WO2025035225A1 PCT/CL2024/050109 CL2024050109W WO2025035225A1 WO 2025035225 A1 WO2025035225 A1 WO 2025035225A1 CL 2024050109 W CL2024050109 W CL 2024050109W WO 2025035225 A1 WO2025035225 A1 WO 2025035225A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
bar
intermaxillary fixation
bending point
clamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CL2024/050109
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English (en)
Spanish (es)
Inventor
Rodrigo Ambrosio BRAVO AHUMADA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2025035225A1 publication Critical patent/WO2025035225A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
    • A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
    • A61F5/058—Splints
    • A61F5/05883—Splints for the neck or head
    • A61F5/05891—Splints for the neck or head for the head, e.g. jaws, nose
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/122—Clamps or clips, e.g. for the umbilical cord
    • A61B17/1227—Spring clips

Definitions

  • Intermaxillary block is mainly performed to fix bone fragments of the jaw for intraoperative, postoperative and temporary immobilization purposes during the recovery of the mandibular bones subjected to some surgical intervention or when it is necessary for some specific treatment that requires it, such as, for example, fractures of the jaws or treatments of facial deformities.
  • intermaxillary fixation is a surgical treatment widely used in facial trauma, orthognathic surgery or other treatments and whose objective is to stabilize dental occlusion. This maneuver is not free of difficulties since it is laborious, takes up surgical time, causes damage to bone, periodontal and dental tissue, is associated with discomfort for the patient such as pain or difficulty in oral hygiene, among others.
  • SUBSTITUTION SHEET (RULE 26) lower jaws, creating a sort of lock that fixes the jaws, preventing their mobility.
  • US10070944B1 describes a resin replantation/MMF device with a dental arch bar that includes an elongated flexible splint and a plurality of spaced apart fixation members.
  • the flexible splint includes an inwardly facing side surface and an outwardly facing side surface.
  • the flexible splint includes a curable component that cures from a moldable state to a rigid state in less than one minute after activation.
  • Each of the fixation members is partially embedded in the flexible splint, each of the fixation members having a protrusion portion extending outwardly from the outwardly facing side surface of the flexible splint.
  • Document W02020264301A1 describes a dental fixation device for the immobilization of the jaw comprising a plurality of dental bands, placed around a tooth or teeth, a dental clamp fixed to an external face of the dental band and at least one accessory to connect two or more dental bands and provide fixation of the maxilla/mandible complex.
  • Intermaxillary fixation devices can be easily applied to a tooth or a plurality of teeth, and do not require bonding to the gums and/or penetration into the bone.
  • GB2122091A describes an apparatus for the orthodontic treatment of teeth for the correction of malocclusion comprising a facebow for attachment to one of the upper or lower dental arches of a patient, said facebow comprising an inner arch for attachment to the dental arch, an outer arch adapted when in use to be located externally to the patient for the application of traction thereto, and first forwardly projecting attachment means to permit the application of additional traction between said attachment means and the other of said upper and lower dental arches, thereby effecting intermaxillary traction.
  • US8662889B2 describes a dental arch bar system that includes upper and lower dental arch bars having movable cross arms and ligature connectors. Fasteners secure the cross arms to the maxilla and mandible of a subject. Ligatures are secured around the upper and lower ligature connectors to achieve intermaxillary fixation. Also described is a method of using the arch bar system to achieve intermaxillary fixation by securing the arch bars against opposing dental arches with generally aligned upper and lower arch bar ligature connectors. In some embodiments, a single dental arch bar is used and one or more ligature connectors (such as screws) are affixed directly to the opposing jawbone. Ligatures are then secured to the arch bar ligature connectors and to the opposing ligature connectors.
  • ligature connectors such as screws
  • EP2231055B1 describes a medical apparatus for intermaxillary fixation or stabilization having a bar with a first attachment loop, a second attachment loop and a plurality of hooks, where the bar is an arch bar and the first attachment loop and the second attachment loop are located distally of each other.
  • Another apparatus has a bar having a first attachment loop assembly, a second attachment loop assembly and a plurality of hooks, where the bar is an arched bar and the first attachment loop assembly and the second attachment loop assembly are movably coupled to the bar.
  • the bar may also have one or more additional attachment loop assemblies located between the first and second attachment loop assemblies.
  • Each of the attachment loop assemblies may have a holder, a fixation loop, a stem and a set screw.
  • the fixation loops may receive a screw for fixing the arch bar to a mandible, a maxilla and/or a prosthetic device.
  • the present invention does not require drilling or intervening in the jawbone to place an element on which fastening or fixing means are hooked, be they wires, elastics or clamps.
  • the great advantage it presents is that it does not cause damage to the bone, periodontal and dental tissue, making it more comfortable for the patient, since it does not cause pain due to not having to drill the bone, nor does it cause difficulty in oral hygiene.
  • the device of the invention is simple, reduces surgical time, reduces sharps accidents since it does not require wires or ties and generates less morbidity in the patient.
  • Figure 1 represents a plan view of the intermaxillary fixation device of the invention where a body and its tips can be seen.
  • Figure 2 represents a isometric view illustrating the intermaxillary fixation device in its passive state with its tips closed before being placed in the interdental space of the maxilla and mandible and before its body is tightened with a tool to open its tips.
  • Figure 3 isometric view with device installed in the interdental spaces of the maxilla and mandible with its tips closed achieving intermaxillary locking.
  • Figure 4 represents an elevation view of the device of the invention illustrating a certain size.
  • Figure 5 represents an elevation view of the device of the invention illustrating another determined size.
  • Figure 6 represents an elevation view of the device of the invention illustrating another determined size.
  • Figure 7 represents an elevation view of the device of the invention illustrating another determined size.
  • Figure 8 represents an elevation view of the device of the invention illustrating another determined size.
  • Figure 9 represents an elevation view of the device of the invention illustrating another determined size.
  • Figure 10 represents an illustration of a kit with different sizes of devices available to the specialist to adapt to different jaw sizes or tooth heights.
  • the invention consists of an intermaxillary locking surgical device that is made up of a clamp or clip composed of a single piece consisting of a wire or solid bar that originates from a first free end called the tip. This extends to a bending point close to 90° where the body of this clamp or clip begins from where it projects to a second bending point where it again bends close to 90° to project backwards according to the direction from the first end to a third bending point from which at least one circumference is generated, by means of a complete turn of the wire or solid bar to a fourth bending point from which it advances to a fifth bending point close to 90°, from which it projects to a sixth bending point close to the 90° from where the second end of the wire is projected, generating a second free end or tip and thus completing the clip or hook that makes up the device of the invention.
  • the at least one complete turn of the wire or bar that constitutes the rear end of the device of the invention forms a torsion spring that allows, by tightening the points just behind the bends close to 90°, that the free ends or tips of the device open so that they are positioned in the interdental space, where one free end is located in the upper jaw and the other free end in the jaw, so that once both ends of the device are located in the free space between teeth in each jaw, pressure is no longer exerted on the body of the clamps, causing the free ends to close or come together and thus forcing the closure, achieving intermaxillary blockage.
  • the ends of the device may have different lengths from the tip to their respective bends near 90°, in order to provide more or less torque depending on how far each end is from the torsion spring area. Likewise, the distance between ends may increase or decrease depending on the intermaxillary distance.
  • Figures 4 to 9 illustrate different lengths and openings between the ends of the device.
  • the wire or bar has enough elasticity so that if it is tightened in the area where the torsion spring is formed, it does not easily break and can be relocated if necessary.
  • the wire or bar that makes up the device of the invention is made of titanium, surgical steel or other biocompatible material with sufficient elasticity for such purposes, although the use of plastic or polymeric materials that can fulfill the function is not ruled out.
  • the intermaxillary fixation device is made up of a clamp or clip (1) made up of a single piece consisting of a wire or solid bar that starts from a first free end (2) to a bending point (3) of approximately 90° segment that we call the tip, from where it projects to a second bending point (4) where it is again bent at approximately 90°, to continue its path from this point in a direction away from the first free end (2) to a third bending point (5), with an inclination of less than 90°, oriented towards a longitudinal central axis of the device, from which at least one circumference is generated, by means of a complete turn of the wire or solid bar, thereby forming a torsion spring (10), from where the path continues to a fourth bending point (6) from which it advances to a fifth bending point (7) of approximately 90°, from which it projects and intersects the segment formed between the first and second bending points (3, 4), until reaching a sixth bending point (8), until forming a segment called the body of the clamp or clip, where
  • torsion spring (10) allows by squeezing the points just behind the folds (7) and (4) of approximately 90°, for the free ends or tips of the device to open and position themselves and be introduced into this interdental space of the maxilla and jaw.
  • Figures 4 to 9 illustrate different preferred embodiments of the invention, not being limited to these.
  • Figure 2 for example, illustrates that the first free end (2) has a distance (d1) to the first fold (3), which is greater than the distance (d2) as illustrated in Figure 5.
  • This difference in the length (d1) and (d2) of the free ends (2) and (9) of Figures 4 to 9 illustrates different preferred embodiments of the invention, not being limited to these. 4 and 5, respectively, allows for greater or lesser pressure to be exerted on each jaw as required.
  • the opening (y1) of the device in figure 4 is smaller than the opening (y2) in figure 5. This allows the device to be placed on different jaw sizes or tooth heights, for which the specialist will choose the appropriate device configuration according to the patient's requirement.
  • Figures 6 to 9 illustrate different lengths and openings between the ends of the device. All size configurations from the different lengths of the free ends (2) and (9), as well as the openings between them, make up a device kit as illustrated in figure 10. These variations are based on the fact that the size of the teeth is different and the dental spaces also differ from each other.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Otolaryngology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Reproductive Health (AREA)
  • Pulmonology (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un dispositif chirurgical de blocage intermaxillaire qui réduit la durée chirurgicale, diminue le risque d'accidents de coupe ou de perforation pour le chirurgien, et donne lieu à une morbidité réduite chez le patient. L'invention consiste en un clamp ou clip constitué de titane, d'acier chirurgical ou d'un autre matériau biocompatible, dont les extrémités libres sont positionnées dans l'espace interdentaire. Une extrémité du clamp est positionnée dans l'espace interdentaire du maxillaire supérieur et l'autre extrémité dans l'espace interdentaire mandibulaire, de manière que, lors de sa mise en place, il fixe ou bloque le maxillaire avec la mâchoire afin que le patient ne puisse pas la bouger ou l'ouvrir, l'objectif de blocage intermaxillaire étant ainsi atteint. Ce clamp ou dispositif est actionné et manipulé au moyen d'une pince permettant de le mettre en place sur les dents ou de l'en retirer avec facilité.
PCT/CL2024/050109 2023-08-11 2024-09-16 Dispositif de fixation ou de blocage intermaxillaire, permettant d'immobiliser le maxillaire et la mâchoire Pending WO2025035225A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CL2023002378A CL2023002378A1 (es) 2023-08-11 2023-08-11 Dispositivo de fijación o bloqueo intermaxilar
CL202302378 2023-08-11

Publications (1)

Publication Number Publication Date
WO2025035225A1 true WO2025035225A1 (fr) 2025-02-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CL2024/050109 Pending WO2025035225A1 (fr) 2023-08-11 2024-09-16 Dispositif de fixation ou de blocage intermaxillaire, permettant d'immobiliser le maxillaire et la mâchoire

Country Status (2)

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CL (1) CL2023002378A1 (fr)
WO (1) WO2025035225A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122091A (en) 1982-04-22 1984-01-11 William John Clark Apparatus for the orthodontic treatment of teeth
US5569274A (en) * 1993-02-22 1996-10-29 Heartport, Inc. Endoscopic vascular clamping system and method
US6878152B2 (en) * 2001-07-03 2005-04-12 Piergiacomi Sud- S.R.L. Forceps used for the surgical reduction of fractured facial bones
US8662889B2 (en) 2008-08-27 2014-03-04 Georgetown University Arch bars for use in maxillofacial surgery and orthodontics
EP2231055B1 (fr) 2007-12-10 2017-11-29 Jeffrey R. Marcus Dispositif de fixation prémaxillaire
US10070944B2 (en) 2012-05-07 2018-09-11 Lawrence D. Singer Singer-domanski resin MMF/reimplantation device
WO2020264301A1 (fr) 2019-06-28 2020-12-30 Ross Matthew S Dispositif de fixation dentaire pour immobilisation de mandibule

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122091A (en) 1982-04-22 1984-01-11 William John Clark Apparatus for the orthodontic treatment of teeth
US5569274A (en) * 1993-02-22 1996-10-29 Heartport, Inc. Endoscopic vascular clamping system and method
US6878152B2 (en) * 2001-07-03 2005-04-12 Piergiacomi Sud- S.R.L. Forceps used for the surgical reduction of fractured facial bones
EP2231055B1 (fr) 2007-12-10 2017-11-29 Jeffrey R. Marcus Dispositif de fixation prémaxillaire
US8662889B2 (en) 2008-08-27 2014-03-04 Georgetown University Arch bars for use in maxillofacial surgery and orthodontics
US10070944B2 (en) 2012-05-07 2018-09-11 Lawrence D. Singer Singer-domanski resin MMF/reimplantation device
WO2020264301A1 (fr) 2019-06-28 2020-12-30 Ross Matthew S Dispositif de fixation dentaire pour immobilisation de mandibule

Also Published As

Publication number Publication date
CL2023002378A1 (es) 2023-09-08

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