PT98339A - APPARATUS AND METHOD FOR REMOVAL OF A PATIENT BODY TISSUE - Google Patents

APPARATUS AND METHOD FOR REMOVAL OF A PATIENT BODY TISSUE Download PDF

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Publication number
PT98339A
PT98339A PT9833991A PT9833991A PT98339A PT 98339 A PT98339 A PT 98339A PT 9833991 A PT9833991 A PT 9833991A PT 9833991 A PT9833991 A PT 9833991A PT 98339 A PT98339 A PT 98339A
Authority
PT
Portugal
Prior art keywords
fragmentation
tip
tissue
operative
cataract
Prior art date
Application number
PT9833991A
Other languages
Portuguese (pt)
Original Assignee
Aziz Yehia Anis
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
Priority claimed from US07/553,975 external-priority patent/US5222959A/en
Application filed by Aziz Yehia Anis filed Critical Aziz Yehia Anis
Publication of PT98339A publication Critical patent/PT98339A/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/00736Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A61F9/00763Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments with rotating or reciprocating cutting elements, e.g. concentric cutting needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/00736Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A61F9/00745Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments using mechanical vibrations, e.g. ultrasonic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B2017/22005Effects, e.g. on tissue
    • A61B2017/22007Cavitation or pseudocavitation, i.e. creation of gas bubbles generating a secondary shock wave when collapsing
    • A61B2017/22008Cavitation or pseudocavitation, i.e. creation of gas bubbles generating a secondary shock wave when collapsing used or promoted

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Saccharide Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)

Claims (11)

REIVINDICAÇÕES 1§ - Aparelho para a remoção de tecido do organismo dum pacieji te, caracterizado pelo facto de compreender um dispositivo com uma ponta operativa para fragmentar e aspirar tecido, compreer^ dendo o referido dispositivo para fragmentar e aspirar tecido meios para mover repetidamente a ponta operativa sob o controlo dum sinal eléctrico a um baixo nível de potência e a uma V£ locidade maior do que a velocidade de fragmentação do tecido e fazenda num certo ângulo com este e tendo a mencionada ponta operativa pelo menos uma aresta de fragmentação com espaços abertos com menos de 10 milímetros. 2§ - Aparelho de acordo com a reivindicação 1, caracterizado pelo facto de a ponta operativa incluir uma extremidade cortar^ te e uma superfície que provoca a cavitação. - Aparelho de acordo com a reivindicação 2, caracterizado pelo facto de a distância entre as arestas de corte ser menor do que 5 milímetros. 4§ - Aparelho de acordo com a reivindicação 3, caracterizado pelo facto de os meios para mover repetidamente a ponta inclujl rem meios para fazer rodar a ponta operativa. 5§ - Aparelho de acordo com a reivindicação 4, caracterizado pelo facto de a ponta operativa ter um diâmetro menor do que 7 milímetros. 6§ - Aparelho de acordo com a reivindicação 5, caracterizado pelo facto de a ponta operativa ser oca e incluir ranhuras queAn apparatus for removing tissue from a patient's body, comprising a device having an operative tip for fragmenting and aspirating tissue, said device for fragmenting and aspirating tissue comprising means for repeatedly moving the tip operative under the control of an electrical signal at a low power level and at a velocity greater than the rate of fragmentation of the tissue and farm at a certain angle thereto and said operative tip having at least one fragmentation edge with open spaces less than 10 millimeters. Apparatus according to claim 1, characterized in that the operative tip includes a cut-off end and a cavitation-causing surface. Apparatus according to claim 2, characterized in that the distance between the cutting edges is less than 5 millimeters. Apparatus according to claim 3, characterized in that the means for repeatedly moving the tip includes means for rotating the operative tip. Apparatus according to claim 4, characterized in that the operating tip has a diameter of less than 7 millimeters. Apparatus according to claim 5, characterized in that the operative tip is hollow and includes grooves which se prolongam geralmente num plano paralelo ao eixo longitudinal da ponta operativa, tendo as citadas ranhuras uma aresta anterior e uma aresta superior.are generally extended in a plane parallel to the longitudinal axis of the operative tip, said grooves having a front edge and an upper edge. 72 - Aparelho de acordo com a reivindicação 6, caracterizado pelo facto de os meios para mover repetidamente a ponta operativa originarem uma velocidade linear do ponto de velocidade máxima da aresta anterior compreendida dentro do intervalo entre 40 centímetros por segundo e 5 metros por segundo.Apparatus according to claim 6, characterized in that the means for repeatedly moving the operative tip causes a linear velocity of the maximum velocity point of the front edge comprised within the range of 40 centimeters per second to 5 meters per second. 82 - Aparelho de acordo com a reivindicação 1, caracterizado pelo facto de a ponta operativa ser substituível. 9^ - Aparelho de acordo com a reivindicação 1, caracterizado pelo facto de os meios para mover repetidamente a ponta operativa incluirem meios para provocar a rotação da ponta operativa .Apparatus according to claim 1, characterized in that the operative tip is replaceable. Apparatus according to claim 1, characterized in that the means for repeatedly moving the operative tip includes means for causing rotation of the operative tip. 102 - Aparelho de acordo com a reivindicação 1, caracterizado pelo facto de a ponta operativa ser oca e incluir ranhuras que se prolongam geralmente segundo um plano paralelo ao eixo longitudinal da planta operativa, tendo as referidas ranhuras uma aresta anterior e uma aresta posterior. 112 _ Aparelho de acordo com a reivindicação 10, caracterizado pelo facto de os meios para mover repetidamente a ponta operativa incluirem meios que originam uma velocidade linear do poji to de velocidade máxima da aresta anterior compreendida dentro do intervalo entre 5 centímetros por segundo e 40 metros por segundo.Apparatus according to claim 1, characterized in that the operative tip is hollow and includes grooves extending generally in a plane parallel to the longitudinal axis of the operative plant, said grooves having a front edge and a rear edge. Apparatus according to claim 10, characterized in that the means for repeatedly moving the operative tip includes means for generating a linear speed of the maximum speed position of the front edge in the range of 5 centimeters per second to 40 meters per second. 122 - Aparelho de acordo com a reivindicação 1, caracterizado pelo facto de os meios para mover repetidamente a ponta opera- A í c J -r tiva incluíram meios que originam uma velocidade do ponto de velocidade máxima d aresta anterior compreendida dentro do intervalo entre 5 centímetros por segundo e 5 metros por segundo 13ã - Processo para a remoção de um tecido do organismo dum p_a ciente, nomeadamente de uma catarata do globo ocular, caracte-rizado pelo facto de empregar um aparelho de acordo com qualquer das reivindicações anteriores e compreender as operações que consistem em a) se inserir uma ponta que fragmenta e descrimina uma superfjí cie tendo superfícies de fragmentação através duma abertura feita no globo ocular até ao cristalino afectado por uma catarata e uma parede capsular em que a ponta tem superfícies de fragmentação móveis a uma certa distância; se moverem as superfícies de fragmentação com uma velocidade maior do que a velocidade de fragmentação em relação ao tecido da catarata e maior do que a velocidade de fragmentação da parede capsular; se posicionar a ponta de fragmentação que descrimina a superfí cie de maneira a colidir com o mencionado tecido da catarata enquanto se move com uma velocidade maior do que a velocidade de fragmentação em relação à parede capsular e fazendo um ângjj lo com a catarata de tal modo que a catarata é fragmentada mas a parede capsular não o é; e se aspirar o tecido fragmentado. 14§ _ Processo de acordo com a reivindicação 13, caracterizado pelo facto de se moverem as superfícies de fragmentação com uma velocidade tal que estas raspam o tecido uma vez durante um intervalo de tempo compreendido entre 400 microssegundos e 3 milissegundos fazendo um ângulo com o tecido de tal modo que pelo menos algumas superfícies de fragmentação provocam umaApparatus according to claim 1, characterized in that the means for repeatedly moving the operative tip includes means which provide a velocity point of the maximum velocity point of the anterior edge comprised within the range of 5 centimeters per second and 5 meters per second. 13. A method for removing a tissue from the body of a patient, in particular an eyeball cataract, characterized by the use of an apparatus according to any of the preceding claims and comprising the steps of: which operations consist of a) inserting a tip that fragments and discriminates a surface having fragmented surfaces through an aperture made in the eyeball to the lens affected by a cataract and a capsular wall wherein the tip has movable fragmentation surfaces some distance; the fragmentation surfaces move with a velocity greater than the rate of fragmentation relative to the cataract tissue and greater than the rate of fragmentation of the capsular wall; positioning the fragmentation tip which discriminates the surface so as to collide with said cataract tissue while moving with a velocity greater than the rate of fragmentation relative to the capsular wall and making an angle with the cataract in such a way that the cataract is fragmented but the capsular wall is not; and aspirate the fragmented tissue. 14. A method as claimed in claim 13, wherein the shredding surfaces are moved at a rate such that they scrape the tissue once for a time between 400 microseconds and 3 milliseconds at an angle to the tissue such that at least some surfaces of fragmentation cause a cavitação suficiente para fragmentar o tecido. 15§ _ Processo de acordo com a reivindicação 14, caracterizado pelo facto de as superfícies de fragmentação se moverem com um binário e uma energia cinética suficientes para que a velocida^ de se mantenha relativamente constante durante a fragmentação. 16ã - Processo de acordo com a reivindicação 15, caracterizado pelo facto de incluir ainda as operações que consistem em se fazer uma pequena incisão com um diâmetro menor do que 7 mi. límetros no saco capsular ao longo da respectiva margem; e se inserir uma ponta de fragmentação e se fazer rodar a citada ponta para fragmentar a catarata.sufficient cavitation to fragment the tissue. 15. A method according to claim 14, wherein the fragmentation surfaces move with sufficient torque and kinetic energy for the velocity to remain relatively constant during fragmentation. 16. A method according to claim 15, further comprising the steps of making a small incision with a diameter of less than 7 ml. in the capsular bag along the respective margin; and inserting a fragmentation tip and rotating said tip to fragment the cataract. 175 - Processo de acordo com a reivindicação 16, caracterizado pelo facto de incluir ainda a operação que consiste em se fazer rodar as superfícies de fragmentação em torno dum eixo lojn gitudinal da ponta de fragmentação que descrimina a superfície e a operação de inserção da ponta incluir a inserção da ponta com o eixo longitudinal a fazer um ângulo agudo com a parede capsular de tal modo que as superfícies de fragmentação animadas de movimento de rotação colidem com o tecido da catarata segundo um certo ângulo.A method according to claim 16, further including the step of rotating the fragmentation surfaces about a longitudinal axis of the fragmentation tip which discriminates the surface and the insertion step of the tip including the insertion of the tip with the longitudinal axis at an acute angle to the capsular wall such that the rotating movement animated fragmentation surfaces collide with the cataract tissue at an angle. 185 - Processo de acordo com a reivindicação 13, caracterizado pelo facto de as superfícies de fragmentação se moverem com um binário e uma energia cinética suficientes para que a velocidja de se mantenha relativamente constante durante a fragmentação.A method according to claim 13, wherein the fragmentation surfaces move with a torque and a kinetic energy sufficient for the velocity to remain relatively constant during fragmentation. 195 - Processo de acordo com a reivindicação 18, caracterizado pelo facto de compreender ainda as operações que consistem em . se fazer uma pequena incisão com um diâmetro menor do que 7 mjLMethod according to claim 18, characterized in that it further comprises the steps of: if a small incision is made with a diameter smaller than 7 mJL límetros no saco capsular ao longo da respectiva margem; e se inserir uma ponta de fragmentação e se comunicar movimento de rotação à ponta de fragmentação para fragmentar o tecido da catarata. 20§ - Processo de acordo com a reivindicação 13, caracterizado pelo facto de incluir ainda a operação que consiste em se fazer rodar as superfícies de fragmentação em torno dum eixo lor[ gitudinal da ponta de fragmentação que descrimina a superfície em que a operação de inserção da ponta inclui a operação da sua inserção com o eixo longitudinal a fazer um ângulo agudo com a parede capsular de modo que as superfícies de fragmentação com movimento de rotação colidem com o tecido da catarata segundo um certo ângulo. 21§ - Processo de acordo com pelo facto de se fazer rodar vel de potência menor do que a reivindicação 13, caracterizado a ponta de fragmentação com um ní^ 1 cavalo vapor. 22ã - Processo para a remoção de um tumor de um organismo, caracterizado pelo facto de compreender as operações que consistem em se abrir cirurgicamente o tecido para expor o tumor próximo de uma membrana tubular sã; se inserir uma ponta de fragmentação que descrimina a superfície através da abertura de encontro ao tecido de tal maneira que a ponta tem superfícies de fragmentação moves colocadas a uma certa distância; se mover as superfícies de fragmentação com uma velocidade com relação ao tumor maior do que a velocidade de fragmentação do tumor mas menor em relação à membrana saudável do que a veloci^in the capsular bag along the respective margin; and inserting a fragmentation tip and communicating rotational movement to the fragmentation tip to fragment the cataract tissue. 20. A method according to claim 13, further comprising the step of rotating the fragmentation surfaces about a longitudinal axis of the fragmentation tip which discriminates the surface on which the insertion operation of the tip includes the operation of its insertion with the longitudinal axis at an acute angle to the capsular wall so that the rotating fragmentation surfaces collide with the cataract tissue at an angle. 21. A method according to claim 1, characterized in that a lower power stroke is provided in claim 13, characterized by the fragmentation tip with a steam horsepower. 22. A method for removing a tumor from an organism, comprising the steps of surgically opening the tissue to expose the tumor near a healthy tubular membrane; inserting a fragmentation tip which discriminates the surface through the aperture against the tissue such that the tip has fragmentation surfaces moved at a distance; the fragmentation surfaces were moved with a tumor velocity greater than the tumor fragmentation rate but smaller relative to the healthy membrane than the velocity of the tumor, yfl. dade de fragmentação desta de tal modo que o tumor é pulveriza do; e se aspirar o material pulverizado.yfl. fragmentation thereof in such a way that the tumor is sprayed; and aspirate the pulverized material. 232 - Processo de acordo com a reivindicação 22, caracterizado pelo facto de as superfícies de fragmentação se moverem com uma velocidade tal que elas raspam as superfícies lisas uma ve;: durante um intervalo de tempo compreendido entre 400 microsse-gundos e 3 milissegundos.A method according to claim 22, wherein the fragmentation surfaces move with a speed such that they scrape the smooth surfaces once for a period of time between 400 microseconds and 3 milliseconds. 242 - Processo de acordo com a reivindicação 22, caracterizado pelo facto de compreender as operações que consistem em escolher um tubo metálico que tem um diâmetro menor do que 10 milímetros e se abrir ranhuras numa sua extremidade e se adaptar a outra extremidade para aplicar movimento de rotação. 25ã - Processo de acordo com a reivindicação 24, caracterizado pelo facto de incluir ainda a operação de desalinhar as extremidades depois de abrir as ranhuras e flectir as suas pontas conj untamente.A method according to claim 22, characterized in that it comprises the steps of choosing a metal tube having a diameter of less than 10 millimeters and opening slots at one end thereof and adapting the other end to apply movement rotation. 25. A method according to claim 24, further including the step of misaligning the ends after opening the grooves and flexing their ends together. 262 - Processo de acordo com a reivindicação 25, caracterizado pelo facto de incluir a operação de torcer a ponta depois de desalinhar. Lisboa, 16 de Julho de 1991 0 Agente Oficial da Propriedade IndustrialThe method of claim 25, wherein the step of twisting the tip after misalignment is included. Lisbon, July 16, 1991 0 Official Agent of Industrial Property AMÉRICO DA SILVA CARVALHO Ageefa Oficial da Propriedade latikiritl Rub Morgues de fronteiro* N* I27-&» JOQO LISBOAAMÉRICO DA SILVA CARVALHO Ageefa Official of Property latikiritl Rub Morgues of frontier * N * I27- & »JOQO LISBOA
PT9833991A 1990-07-17 1991-07-16 APPARATUS AND METHOD FOR REMOVAL OF A PATIENT BODY TISSUE PT98339A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/553,975 US5222959A (en) 1990-07-17 1990-07-17 Removal of tissue
US68029291A 1991-04-04 1991-04-04

Publications (1)

Publication Number Publication Date
PT98339A true PT98339A (en) 1993-07-30

Family

ID=27070478

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9833991A PT98339A (en) 1990-07-17 1991-07-16 APPARATUS AND METHOD FOR REMOVAL OF A PATIENT BODY TISSUE

Country Status (7)

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EP (1) EP0493573A4 (en)
JP (1) JPH05501667A (en)
AU (1) AU656905B2 (en)
CA (1) CA2065386A1 (en)
IE (1) IE912472A1 (en)
PT (1) PT98339A (en)
WO (1) WO1992001423A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5911699A (en) 1990-07-17 1999-06-15 Aziz Yehia Anis Removal of tissue
US5722945A (en) * 1990-07-17 1998-03-03 Aziz Yehia Anis Removal of tissue
US5492528A (en) * 1990-07-17 1996-02-20 Anis; Azis Y. Removal of tissue
US6007513A (en) 1990-07-17 1999-12-28 Aziz Yehia Anis Removal of tissue
EP0642321A4 (en) * 1993-03-22 1995-11-02 Aziz Yehia Anis Removal of tissue.
US20090018566A1 (en) 2006-06-30 2009-01-15 Artheromed, Inc. Atherectomy devices, systems, and methods
US8920448B2 (en) 2006-06-30 2014-12-30 Atheromed, Inc. Atherectomy devices and methods
US8361094B2 (en) 2006-06-30 2013-01-29 Atheromed, Inc. Atherectomy devices and methods
WO2008005888A2 (en) 2006-06-30 2008-01-10 Atheromed, Inc. Atherectomy devices and methods
US8070762B2 (en) 2007-10-22 2011-12-06 Atheromed Inc. Atherectomy devices and methods
US9345511B2 (en) 2011-10-13 2016-05-24 Atheromed, Inc. Atherectomy apparatus, systems and methods
US11304723B1 (en) 2020-12-17 2022-04-19 Avantec Vascular Corporation Atherectomy devices that are self-driving with controlled deflection

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US464252A (en) * 1891-12-01 Ernest g
US3082530A (en) * 1960-04-28 1963-03-26 Hopf Paul Drilling and like tools
US3996935A (en) * 1969-02-14 1976-12-14 Surgical Design Corporation Surgical-type method for removing material
US3882872A (en) * 1970-01-05 1975-05-13 Nicholas G Douvas Method and apparatus for cataract surgery
US3990453A (en) * 1973-04-25 1976-11-09 Douvas Nicholas G Apparatus for cataract surgery
GB2111390B (en) * 1981-12-14 1984-08-01 Heskel Marshall Haddad Surgical device for excision of tissue
US4850354A (en) * 1987-08-13 1989-07-25 Baxter Travenol Laboratories, Inc. Surgical cutting instrument

Also Published As

Publication number Publication date
IE912472A1 (en) 1992-01-29
WO1992001423A1 (en) 1992-02-06
AU8288191A (en) 1992-02-18
AU656905B2 (en) 1995-02-23
EP0493573A4 (en) 1992-12-16
EP0493573A1 (en) 1992-07-08
CA2065386A1 (en) 1992-01-18
JPH05501667A (en) 1993-04-02

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