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WO2016089324A1 - Dispositif intramédullaire biomédical - Google Patents

Dispositif intramédullaire biomédical Download PDF

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Publication number
WO2016089324A1
WO2016089324A1 PCT/TR2015/050170 TR2015050170W WO2016089324A1 WO 2016089324 A1 WO2016089324 A1 WO 2016089324A1 TR 2015050170 W TR2015050170 W TR 2015050170W WO 2016089324 A1 WO2016089324 A1 WO 2016089324A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
biomedical
intramedullary device
lengthening
intramedullary
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.)
Ceased
Application number
PCT/TR2015/050170
Other languages
English (en)
Inventor
Salih Bugra ERDEM
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2016089324A1 publication Critical patent/WO2016089324A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7216—Intramedullary devices, e.g. pins or nails for bone lengthening or compression
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7216—Intramedullary devices, e.g. pins or nails for bone lengthening or compression
    • A61B17/7225—Intramedullary devices, e.g. pins or nails for bone lengthening or compression for bone compression
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00411—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like actuated by application of energy from an energy source outside the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B2017/681—Alignment, compression, or distraction mechanisms

Definitions

  • This invention is related with a biomedical device that used in orthopedics. Previous Technique :
  • Bone lengthening is used for curing some problems in orthopedics like; fragmental fractures, equalizing leg lengths of people that has a shorter leg than the other connaturally, physeal fractures, cosmetic, Osteomyelitis, Fibular Hemimelia, Oilier Disease and Hip Dysplasia.
  • Bone lengthening techniques was started with Ilizarov method in 1960s. In this method, legs are wrapped by a circular metal. Circular metal contains metal connections penetrating to leg and bone. This is called as external fixator in technique.
  • ISKD and Albizza consisted of telescoping nails. Lengthening is happened with motion 3-9 degrees in ISKD while this value is 18-20 degrees in Albizzia. Difference in ISKD, there is no obligation to take rontgenography by the help of its magnetic sensor. So there is no need to go to hospital. But this technique is replaced with motorized nailing systems because of not supplying control of lengthening amount.
  • preferred intramedullary nails are generally Fitbone and ISKD. But it is highly demanded endurance and shortening ability against sudden extreme lengthenings for these nails because of their high crashing failures when they are in patient's bones and sudden extreme lengthening failures that frequently mentioned in medicine literature. When there is a sudden extreme lengthening, osteogenesis does not happen and it is needed a new surgical operation in order to fix crashed nail. Big medical problems can happen for patients because of these failures.
  • Another problem at known situations in technique is that there is no shortening capability for intramedullary nails. This causes new surgery operations and implanting new nails to patients when a sudden extreme lengthening happened.
  • the object of this invention is realizing a high endurance capability motorised biomedical intramedullary device that adjustable its lengthening and/or shortening in order to lengthen bones by placing it in bone gap.
  • Another object of this invention is realizing a motorised biomedical intramedullary device that can be remote controlled.
  • Another object of this invention is realizing a motorised biomedical intramedullary device that boosted its endurance capability.
  • the mentioned biomedical intramedullary device includes; a body, a movable lengthening unit in that body, an actuator unit to provide motion like a motor, an inner unit has threads its outer surface movable in body's inner surface has threads moves lengthening unit back or forward by the help of leaching that provides high endurance capability in order to resist body loads, a control unit that controls moving type and amount of inner unit.
  • Biomedical intramedullary device includes a first cap covers device's body from a side and a secondary cap covers body from the other side near lengthening unit.
  • First cap and secondary cap are attached to device's body, have threads providing high endurance capability.
  • Inner unit that can move back or forward as restrained by the help of leaching is in body has threads its inner surface in order to increase its endurance capability.
  • Inner unit includes threads on its entire body.
  • the edge of inner unit that attached to connection component has a smaller diameter than the other edge.
  • Biomedical intramedullary device includes a connection component that connecting inner unit and lengthening unit, is used for to pull lengthening unit to inner unit's direction when device is shortening.
  • Connection component provides to pull lengthening unit when inner unit moves back to first cap.
  • Connection component is an unit wrapping smaller diameter edge of inner unit, bonds lengthening unit and inner unit.
  • connection component is a nut wrapping smaller diameter edge of inner unit.
  • Leakproof unit is an unit that disconnects device's inner side from outer environment and blocks entering body liquids like blood into device's inner side.
  • leakproof unit is a biocompatible elastomer.
  • Aforementioned biomedical intramedullary device that provided its shortening an lengthening with actuator unit, includes a control unit that contains a remote control receiver in order to can be controlled its shortening and lengthening ability as remotely.
  • Body includes control unit.
  • Actuator unit provides inner unit to move to first cap's direction or secondary cap's direction with turning it.
  • actuator unit is an electricity motor has dimensions that can be situated in device's inner side.
  • Aforementioned biomedical intramedullary device includes a communication unit that supplies required energy to actuator unit.
  • communication unit is a cable.
  • Aforementioned biomedical intramedullary device contains a body shaped cylindrical that suits a bone's shape, an inner unit, a lengthening unit, a leakproof unit, a first cap and a secondary cap.
  • Body, inner unit, lengthening unit and both caps are manufactured from biocompatible and high load resistance materials like titanium and its alloys (e.g. TNTZ, Ti6A14V) or stainless steel.
  • biocompatible and high load resistance materials like titanium and its alloys (e.g. TNTZ, Ti6A14V) or stainless steel.
  • Figure 1 It is a fragmented appearance of aforementioned biomedical intramedullary device.
  • Figure 2 It is a isometric fragmented appearance of aforementioned biomedical intramedullary device.
  • Figure 3 They are some appearances from several different angles of aforementioned biomedical intramedullary device's short situation.
  • Figure 4 They are some appearances from several different angles of aforementioned biomedical intramedullary device's long situation.
  • Figure 5 It is a sectional appearance of aforementioned biomedical intramedullary device' s unassembled form.
  • Figure 6 It is a sectional appearance of aforementioned biomedical intramedullary device' s short situation.
  • Figure 7 It is a sectional appearance of aforementioned biomedical intramedullary device' s long situation.
  • Figure 8 It is a schematic appearance of aforementioned biomedical intramedullary device and its control unit.
  • Figure 9 It is a schematic appearance from a different angle of aforementioned biomedical intramedullary device and its control unit.
  • Figure 10 - It is a side sectional appearance of aforementioned biomedical intramedullary device's body that contains canals.
  • Figure 11 It is a frontal sectional appearance of aforementioned biomedical intramedullary device's body that contains canals.
  • Aforementioned biomedical intramedullary device (1) includes a body (30), a first cap (10) covers body (30) from a side near actuator unit (20), a secondary cap (80) covers body (30) from other side near lengthening unit (60), an inner unit (40) movable in body (30), an actuator unit (20) like a motor connected to inner unit (40) supplies its motion, a lengthening unit (60) can move when inner unit (40) moves, a connection unit (50) situated between lengthening unit (60) and inner unit (40) and connects them each other.
  • Device (1) also contains a leakproof unit (70) wrapping lengthening unit (60).
  • Leakproof unit (70) also covers a part of secondary cap (80) near lengthening unit (60).
  • Leakproof unit (70) disconnects device's (1) inner side from outer environment.
  • Leakproof unit (70) disconnects actuator unit (20) from blood or another body liquids when device (1) is lengthened.
  • Biomedical intramedullary device (1) also contains a control unit (90).
  • Body (30) contains an actuator unit (20), a communication unit (21), an inner unit (40), a connection unit (50), a lengthening unit (60) and a leakproof unit (70).
  • Body (30) also contains canals (31) and a control unit (90).
  • Body (30) is a construction that can be lengthened and shortened.
  • Inner unit (40) contains threads on its entire body.
  • the edge of inner unit (40) near lengthening unit (60) has a smaller diameter than the other edge.
  • Inner unit (40) and lengthening unit (60) move to first cap's (10) direction or secondary cap's (80) direction as back or forward.
  • Inner unit (40) and lengthening unit (60) move together in order to shorten or lengthen the body (30).
  • Device (1) has a cylindrical construction that suitable for bone.
  • First cap (10) and secondary cap (80) covers device's (1) opened edges in order to protect actuator unit (20) , inner unit (40) and connection unit (50) that situated in device's (1) inner side.
  • First cap (10) and secondary cap (80) contain threads. So, both caps give support device (1) to resist body loads.
  • Actuator unit (20) supplies energy to lengthen or shorten device (1) by the help of motions of inner unit (40) and lengthening unit (60).
  • Device (1) also contains a communication unit (21).
  • Communication unit (21) supplies communication and energy flow between actuator unit (20) and control unit (90). Actuator unit (20) and inner unit (40) moves together when inner unit (40) moves back or forward.
  • body (30) contains canals (31) in order to hinder skid of actuator unit (20) when actuator unit (20) (e.g. an electricity motor) and inner unit (40) situated together moves by turning as a principle of leaching.
  • actuator unit (20) e.g. an electricity motor
  • inner unit (40) situated together moves by turning as a principle of leaching.
  • Bulges on actuator unit (20) are entered to aforementioned canals (31) and thus it is hindered actuator unit (20) to turn around its own axis.
  • actuator unit (20) is an electricity motor that has micro dimensions.
  • communication unit (21) is an unit that providing communication between control unit (90) and biomedical intramedullary device (1) and it is a cable preferably.
  • communication unit (21) is tied to control unit (90) that situated out of bone via canals on first cap (10).
  • Control unit (90) includes a control cell (91) to provide energy to actuator unit (20) and to control lengthening and shortening of device (1) by the help of actuator unit (20).
  • Control cell (91) e.g. micro processor controls lengthening and shortening of device (1) remotely by providing communication with actuator unit (20).
  • Control cell (91) also contains a power supply like a battery and a remote control receiver in order to control lengthening and shortening of device (1) remotely.
  • Control unit (90) is situated in a muscle pattern whereas device (1) is situated in bone gap.
  • control cell (91) can be situated in bone gap-
  • Actuator unit (20) provides inner unit's (40) motion to first cap's (10) direction or secondary cap's (80) direction by taking commands from control cell (91).
  • Connection unit (50) is a nut in an application.
  • inner unit (40) moves to secondary cap's (80) direction and pushes lengthening unit (60) to same direction. This move pushes lengthening unit (60) out of body (30).
  • lengthening of biomedical intramedullary device (1) When a sudden undesirable lengthening that can be a problem for patients occurs, inner unit (40) can move to first cap's (10) direction by taking commands from control cell (91). In this way, inner unit (40) pulls lengthening unit (60) back to inside of body (30) by the help of connection unit (50). Finally it is fulfilled shortening of biomedical intramedullary device (1).
  • Inner unit (40) is a screw that can move in body's (30) inner side.
  • Inner unit (40) moves by turning as a principle of leaching with controlled amounts in body's (30) inner side. So it is provided that biomedical intramedullary device (1) lengthen or shorten controlledly and it is constituted that more enduring and nonbreakable structure in bone.
  • inner unit (40) is a structure has a smaller diameter than body (30), can enter to body's (30) inside.
  • the edge threads of inner unit (40) near connection unit (50) have a smaller diameter than the other edge of inner unit (40).
  • the edge of lengthening unit (60) near connection unit (50) has a smaller diameter whereas the other edge's diameter of lengthening unit (60) near secondary cap (80) is larger.
  • Connection unit (50) is attached to inner unit (40) by passing through lengthening unit's (60) large edge.
  • the smaller diameter edge of inner unit (40) enters to hole in lengthening unit' s (60) smaller edge. After that connection unit (50) is assemblied to inner unit's (40) smaller diameter edge via passing through lengthening unit's (60) inner side.
  • Leakproof unit (70) has a shapeable structure that situated between body's (30) inner side and secondary cap (80). Leakproof unit (70) covers lengthening unit (60) all around.
  • Aforementioned biomedical intramedullary device (1) contains a leakproof unit (70) that situated between body's (30) inner side and secondary cap (80).
  • Leakproof unit (70) can take the shape of lengthening unit (60).
  • leakproof unit (70) is a biocompatible elastomer.
  • device (1) is a cylindrical structure that has a diameter between 1 - 1,5 cm and length between 15 - 25 cm.
  • Aforementioned biomedical intramedullary device (1) can be manufactured from several biocompatible and enduring materials like titanium and its alloys (e.g. TNTZ, Ti6A14V) or a stainless steel.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un dispositif intramédullaire biomédical (1) qui comprend un corps (30), une unité interne (40) pouvant se déplacer à l'intérieur du corps (30), une unité d'actionnement (20) générant un déplacement, un corps (30) comprenant des filetages sur sa surface interne, une unité intérieure mobile (40) comprenant des filetages sur toute sa surface permet une bonne résistance à des charges dans le corps par déplacement d'une unité d'allongement (60) vers l'arrière ou vers l'avant par lixiviation de manière à allonger ou raccourcir le dispositif (1), et une unité de commande (90) qui commande le type et la grandeur de déplacement de l'unité intérieure (40).
PCT/TR2015/050170 2014-12-04 2015-11-11 Dispositif intramédullaire biomédical Ceased WO2016089324A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2014/14656A TR201414656A2 (tr) 2014-12-04 2014-12-04 Bir biyomedikal intramedullar cihaz.
TR2014/14656 2014-12-04

Publications (1)

Publication Number Publication Date
WO2016089324A1 true WO2016089324A1 (fr) 2016-06-09

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PCT/TR2015/050170 Ceased WO2016089324A1 (fr) 2014-12-04 2015-11-11 Dispositif intramédullaire biomédical

Country Status (2)

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TR (1) TR201414656A2 (fr)
WO (1) WO2016089324A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12533165B2 (en) 2023-03-02 2026-01-27 Mds Ii Llc Orthopedic nail system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074882A (en) 1988-06-09 1991-12-24 Medinov Sarl Progressive elongation centro-medullar nail
US5961553A (en) 1995-02-13 1999-10-05 Medinov-Amp Long bone elongation device
US20050261779A1 (en) * 2003-11-17 2005-11-24 Meyer Rudolf X Expansible rod-type prosthesis and external magnetic apparatus
US20060293683A1 (en) * 2003-04-16 2006-12-28 Roman Stauch Device for lengthening bones or bone parts
WO2010134078A1 (fr) * 2009-05-18 2010-11-25 Orthogon Technologies 2003 Dispositif de clou medullaire
WO2013001463A1 (fr) * 2011-06-27 2013-01-03 University Of Cape Town Endoprothèse
US20130072932A1 (en) * 2011-09-15 2013-03-21 Wittenstein Ag Intramedullary nail
DE102013101915A1 (de) 2012-04-28 2013-10-31 Zapir G. Zapirov Einrichtung zur Behandlung von Frakturen von Röhrenknochen mit einem kurzen Distalfragment mit einer Ermöglichung zu ihrer Verlängerung, Kompression und Kürzung bei Menschen und Tieren

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074882A (en) 1988-06-09 1991-12-24 Medinov Sarl Progressive elongation centro-medullar nail
US5961553A (en) 1995-02-13 1999-10-05 Medinov-Amp Long bone elongation device
US20060293683A1 (en) * 2003-04-16 2006-12-28 Roman Stauch Device for lengthening bones or bone parts
US20050261779A1 (en) * 2003-11-17 2005-11-24 Meyer Rudolf X Expansible rod-type prosthesis and external magnetic apparatus
WO2010134078A1 (fr) * 2009-05-18 2010-11-25 Orthogon Technologies 2003 Dispositif de clou medullaire
WO2013001463A1 (fr) * 2011-06-27 2013-01-03 University Of Cape Town Endoprothèse
US20130072932A1 (en) * 2011-09-15 2013-03-21 Wittenstein Ag Intramedullary nail
DE102013101915A1 (de) 2012-04-28 2013-10-31 Zapir G. Zapirov Einrichtung zur Behandlung von Frakturen von Röhrenknochen mit einem kurzen Distalfragment mit einer Ermöglichung zu ihrer Verlängerung, Kompression und Kürzung bei Menschen und Tieren

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12533165B2 (en) 2023-03-02 2026-01-27 Mds Ii Llc Orthopedic nail system
US12533166B2 (en) 2023-12-20 2026-01-27 Mds Ii Llc Orthopedic nail system

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