WO2018220242A1 - Dispositif de recharge d'implants d'otoplastie - Google Patents

Dispositif de recharge d'implants d'otoplastie Download PDF

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Publication number
WO2018220242A1
WO2018220242A1 PCT/ES2017/070380 ES2017070380W WO2018220242A1 WO 2018220242 A1 WO2018220242 A1 WO 2018220242A1 ES 2017070380 W ES2017070380 W ES 2017070380W WO 2018220242 A1 WO2018220242 A1 WO 2018220242A1
Authority
WO
WIPO (PCT)
Prior art keywords
implant
gun
channel
flattening
pressure
Prior art date
Application number
PCT/ES2017/070380
Other languages
English (en)
Spanish (es)
Inventor
Arturo RUIZ CASADO
Original Assignee
Tt Innovation Healtools, S.L.
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 Tt Innovation Healtools, S.L. filed Critical Tt Innovation Healtools, S.L.
Priority to PCT/ES2017/070380 priority Critical patent/WO2018220242A1/fr
Publication of WO2018220242A1 publication Critical patent/WO2018220242A1/fr

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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/18—Internal ear or nose parts, e.g. ear-drums
    • 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
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/20—Ear surgery
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/0059—Cosmetic or alloplastic implants
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/18—Internal ear or nose parts, e.g. ear-drums
    • A61F2002/183—Ear parts
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped

Definitions

  • the present invention relates to a recharge device for otoplasty implants intended to surgically correct deformities in patients, namely, prominent ears.
  • implant applicators for otoplasty that are basically a pre-filled gun with an implant.
  • the implant is an elastic, preferably metallic, horseshoe-shaped sheet that, during the preload procedure, is stretched so that it is flat on the tip of the gun. Subsequently, the surgeon through a surgical procedure inserts the tip of the gun into the ear and pulls the trigger, the implant is released from the gun and recovers its original horseshoe shape inside the ear, modifying the shape of the auditory pavilion.
  • the implant placement system of the technique consists of a factory pre-loaded gun with an implant at the tip of the gun, that is, said gun is for single use only and has no means of recharging an implant already fired and returned to its shape, for example, horseshoe or means for the placement of a new implant, so the surgeon is forced to use a new applicator-implant assembly, which generates higher costs and waste of medical equipment.
  • the gun does not have an implant recharge mechanism once fired, that is, once it has elastically recovered its horseshoe shape.
  • the present invention discloses a refill device for said otoplasty implants. DESCRIPTION OF THE INVENTION
  • an otoplasty implant recharge device of the type comprising:
  • the flattening element is disposed between the two ends of the implant and comprises means of longitudinal displacement along the channel to deform the implant and the pressure element presses the distal end of the implant to the gun.
  • the pressure element is connected to a fixed body comprising the channel and the flattening element is connected to a mobile body.
  • the pressure element can be connected with rotation capacity to the fixed body.
  • the pressure element may have an arcuate surface in contact with the movable surface, so that the rotation of the pressure element causes a longitudinal movement of the flattening element.
  • the recharging device has guiding means for the displacement of the flattening element.
  • the gun clamping means are pressure clamping means.
  • Said means for holding the gun can comprise, for example, a clamp.
  • the flattening element is suitable for deforming metal implants.
  • the recharging device may be made of at least 85% plastic, preferably at least 95% plastic. Additionally, the recharging device may comprise a maximum of 10% stainless steel, preferably a maximum of 5%. Alternatively, it could be manufactured entirely in metal with stainless properties, for example stainless steel, in which case the mechanism would be non-disposable and should become sterilized material between interventions. DESCRIPTION OF THE DRAWINGS
  • Figure 1 shows a gun for surgical application of an otoplasty implant of the type to be recharged with a device according to the present invention.
  • Figure 2 shows a longitudinal section of a recharging device according to the present invention.
  • Figure 3 shows a perspective view of a gun arranged to be reloaded with an implant with the device being in an initial position.
  • Figure 4 shows a cross-sectional view of a gun being recharged by a device according to the present invention with the device being in an intermediate position.
  • Figure 5 shows a cross-sectional view of a gun being recharged by a device according to the present invention, the device being in a final position.
  • Figure 1 shows a gun 1 for surgical insertion of an implant 2, in particular an elastic implant which, when released, has a horseshoe shape.
  • the gun comprises an applicator 10, a holding handle 1 1 and a trigger 12.
  • the user makes an incision in the patient's ear with a size sufficient to insert the applicator 10.
  • the applicator 10 is inserted along with the implant 2 through said incision.
  • the applicator is moved to a predefined position and represents the place where the defect of prominent ears is aesthetically corrected if a flexion is made in a direction substantially towards the patient's head.
  • the implant 2 is released, this is done by pressing the trigger 12.
  • the implant 2 When releasing the implant 2, it elastically returns to its horseshoe shape and, consequently, modifies the shape of the patient's ear
  • the implants 2 are preloaded on the gun 1 and, consequently, if the predefined position does not cause the desired aesthetic improvement in the patient, a new gun 1 preloaded with a new implant 2 and improperly placed implants should be discarded, resulting in considerable waste of medical material in good condition. Even if the trigger is accidentally pressed before any surgical procedure, the gun releases the implant and it should be discarded since returning it to its initial position may be unsafe due, among others, to the presence of sharp elements.
  • the present invention discloses, with reference to Figure 2, a refill device 3 of implants 2 in the gun 1.
  • Figure 2 shows an implant 2 that has been previously released from the gun 1 and, consequently, has modified the elongated shape with which it was preloaded and has elastically modified its shape to a horseshoe shape.
  • the refill device 3 comprises a channel 30 intended to receive the applicator 10 of the gun 1, fastening means 31 to the gun
  • a movable body 32 that has means to deform the implant
  • the implant 2 when free of external forces has a horseshoe shape with a curved central area and two ends, a proximal end that the user can attach to the applicator 10 at its end outermost and a distal end that is attached to the applicator 10 by the device of the present invention.
  • an exemplary embodiment can be by means of a clamp, as shown in Figure 2, this clamp can be configured to be attached to the gun through the applicator 10 .
  • the recharging device 3 comprises a movable body 32 whose function is to perform a longitudinal displacement with respect to the channel 30 and, consequently, with respect to to the applicator 10 of the gun 1.
  • This longitudinal displacement has the function of performing a deformation of the implant 2
  • the operation mode of the refill device 3 starts by the arrangement of the gun 1 in the refill device 3 which will be described with reference to figure 3.
  • the movable body comprises an element flattener 320 that is located vertically at a height higher than the canal but less than that of the implant in the horseshoe-shaped position, that is, is located at a perpendicular distance from the channel such that it can come into contact with the curved area of the implant 2, that is to say an intermediate zone between the distal and proximal ends of implant 2.
  • the refill device 3 comprises a fixed body, that is, without relative movement with respect to the gun 1 comprising the clamping means 31 and, optionally, the pressure means 33 and a moving body 32 comprising the flattening element 320.
  • the pressure means have a union with a rotational capacity to the fixed body.
  • This rotation-capable joint can be used to have a substantially arcuate surface 331 that can be configured to exert the longitudinal displacement in the movable body 32.
  • the longitudinal movement is carried out by the action of the user who can either directly move the mobile body 32 or, as shown in Figure 4, press an element with an arcuate surface 331 that executes a longitudinal movement of the mobile body.
  • the distal end of the implant 2 is attached to the applicator 10 which will be explained more detail in reference to figure 5.
  • the means for holding the implant can be by means of the trigger 12 of the applicator 10, making a force in this direction substantially opposite to the force for the release of the implant 2 such that a clamping element associated with said trigger holds the implant 2 at its distal end.
  • the fastening means can be for example a hole disposed in the implant 2 through which a pin arranged in the applicator passes.
  • the recharging device has a projection 330 whose function is to press as close as possible to said hole in order to hold the implant 2 back to the applicator 10 in a flattened form.
  • the action of the user may be required by acting on the trigger 12 of the applicator 10 in order to match said elements and subsequently perform the pressure by the protrusion 330.
  • the recharging device 3 may have elastic means for returning the recharging device to the initial position.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Otolaryngology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Pulmonology (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Psychology (AREA)
  • Prostheses (AREA)

Abstract

La présente invention concerne un dispositif qui facilite la recharge d'implants d'otoplastie. Le dispositif selon la présente invention comprend: un canal (30) pour recevoir un pistolet de mise en place d'implants avec un implant (2) en forme de mâchoire dont l'extrémité proximale est reliée audit pistolet; des moyens de fixation (31) au pistolet; un élément aplanisseur (320) disposé sur le canal; et un élément de pression (33). L'élément aplanisseur est, de préférence, disposé entre les deux extrémités de l'implant et comprend des moyens de déplacement longitudinal le long du canal pour déformer l'implant et l'élément de pression pousse l'extrémité distale de l'implant vers le pistolet.
PCT/ES2017/070380 2017-05-31 2017-05-31 Dispositif de recharge d'implants d'otoplastie WO2018220242A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2017/070380 WO2018220242A1 (fr) 2017-05-31 2017-05-31 Dispositif de recharge d'implants d'otoplastie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2017/070380 WO2018220242A1 (fr) 2017-05-31 2017-05-31 Dispositif de recharge d'implants d'otoplastie

Publications (1)

Publication Number Publication Date
WO2018220242A1 true WO2018220242A1 (fr) 2018-12-06

Family

ID=60009652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2017/070380 WO2018220242A1 (fr) 2017-05-31 2017-05-31 Dispositif de recharge d'implants d'otoplastie

Country Status (1)

Country Link
WO (1) WO2018220242A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023296A1 (fr) * 2005-08-26 2007-03-01 West Hertfordshire Hospitals Nhs Trust Structure d'echafaudage chirurgicale
WO2012136950A1 (fr) * 2011-04-05 2012-10-11 Northwood Implants Limited Support pour oreille
WO2015145102A1 (fr) * 2014-03-26 2015-10-01 Northwood Medical Innovation Limited Système d'introduction chirurgical

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023296A1 (fr) * 2005-08-26 2007-03-01 West Hertfordshire Hospitals Nhs Trust Structure d'echafaudage chirurgicale
WO2012136950A1 (fr) * 2011-04-05 2012-10-11 Northwood Implants Limited Support pour oreille
WO2015145102A1 (fr) * 2014-03-26 2015-10-01 Northwood Medical Innovation Limited Système d'introduction chirurgical

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