US3515100A - Trepan with automatic stop means - Google Patents

Trepan with automatic stop means Download PDF

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Publication number
US3515100A
US3515100A US649343A US3515100DA US3515100A US 3515100 A US3515100 A US 3515100A US 649343 A US649343 A US 649343A US 3515100D A US3515100D A US 3515100DA US 3515100 A US3515100 A US 3515100A
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US
United States
Prior art keywords
drill
trepan
supporting plate
spindle
coupling
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.)
Expired - Lifetime
Application number
US649343A
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English (en)
Inventor
Arnold Keller
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.)
AUSTENAL EUROPA Inc
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AUSTENAL EUROPA Inc
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Filing date
Publication date
Application filed by AUSTENAL EUROPA Inc filed Critical AUSTENAL EUROPA Inc
Application granted granted Critical
Publication of US3515100A publication Critical patent/US3515100A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1695—Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/18—Cutting by use of rotating axially moving tool with stopping upon completion of prescribed operation

Definitions

  • the known trepans are not quite satisfactory inasmuch as the use thereof makes the availability of certain auxiliaries a prerequisite.
  • the opening of. the skull bone namely, is very dangerous without these special auxiliary means-because there is the danger that when boring a hole into the skull bone, the unsupported drill may under certain circumstances penetrate into the interior of the skull so deeply that the dura and possibly even the brain may be hurt.
  • a point arranged laterally of the drill is generally provided as a support for the trepan during the drilling operation. This is subject to the disadvantage that after termination of the drilling operation the drill of the instrument may yet still penetrate farther into the borehole and thus into the skull.
  • the trepan according to the invention comprises a housing, a driving shaft rotatably supported in said hous ing and connected to rotational drivemean's', an'out'put shaft rotatably supported in said housing and provided bined with a backward movement of said supporting plate with respect to said drill.
  • the trepan provided with said spindle is characterized in that said spindle is provided with a second coupling, subjected to the force of second resilient means, a half of said second coupling being fastened to the spindle gear and the other half being fastened to said spindle or a member fastened thereto, whereby the spindle carrying the supporting plate is moved back with respect to the drill only if the drilling pressure acts onto the supporting plate and forces said second coupling into engagement againstthe action of said second resilient means.
  • the trepan comprises a housing 1 with a driving shaft 2 supported in an antifriction bearing 3 and provided at its front end 'with a coupling half 4 which may be engaged with a coupling half 7 biased by a spring 6.
  • the driving shaft 2 is connected to rotational drive means (not shown).
  • the coupling half 7 is arranged at one end of an output shaft 8 with a gear 9 and a drill chuck .11 provided at the other end.
  • a drill 12 tapered towards its tang 13 may be inserted into the drill chuck 11 and is replaceably retained therein by means of a set screw 14.
  • the gear 9 arranged on the output shaft '8 meshes with another gear 16 which is arranged around a spindle 18 subjected to the tension of a spring 17.
  • the gear 16 is provided with a coupling half 19 at its front end face, said coupling half being in cooperation with another coupling half 21 arranged on the front end portion of the spindle 18 which comprises a regulator'wheel 23 and a supporting plate 26 at its front end facing away from the coupling half 21, said supporting plate being provided with centerat the front end thereof with a drill chuck which retains a drill projecting from said housing, a first coupling ar ranged between said output shaft and said driving shaft and adapted to transmit rotational movement from the driving shaft to the output shaft, said first coupling being forced permanently out of engagement by first resilient means and adapted to be forced into engagement against the force of said first resilient means by the action of the drill pressure, and supporting means connected to said housing adjacent said drill and adapted to limit the depth of penetration of the drill into the skull bone.
  • the supporting means comprise a spindle rotatably supported in said housing and provided with a supporting plate at the front end thereof, said spindle having arranged a gear thereon which is in mesh with another gear arranged on the output shaft, whereby the rotation of the drill is coming pins 24 and a center bore 22 for the movement of the drill 12.
  • the coupling half 21 is arranged at the rear side of the regulator wheel.
  • a guiding pin 27 projecting from the back side of the, supporting plate 26 is guided in a recess not designated with a'reference numeral,..and provided in a housing portion 28 containing the gear 16, the coupling halves 19 and 21 as well as the spindle 18 and the wheel 23.
  • the housing portion 28 is provided with'a corresponding aperture 2 9.
  • the coupling 4, 7 provided between the driving shaft 2 and the output shaft 8 and biased by a spring 6 is in engagement and transmits rotational movement to the drill 12 to perform a drilling operation only if a drilling pressure is exerted against the cutters or the bit.
  • the coupling half 7 is separated from the coupling half 4 on effect of the spring 6, so that further drive of the drill 12 is prevented.
  • the supporting plate 26 is provided in order to avoid any further penetration of the drill into the interior of the skull.
  • the latter is adjusted prior to starting the drilling operation by means of the regulator wheel 23 and the spindle 18, in such a manner that it is 3 approximately aligned with the drill bit. If now the drilling operation is started,the gears 9 and '16 being inmesh with each other are effective in such a manner that with increasing penetration of the drill into the skullbone the supporting plate 2-6 is uniformly moved back against the force of the spring 17.
  • the supporting plate 26 is thus moved backupon a rotary movement of the drill, that means this movement is taking place only if the drill 12 is driven via the coupling 4, 7.
  • the gears 9 and 16 thus have the function of slacking back the supporting plate 26 as long as the drilling pressure lasts, i.e. as long as the drill 12 is penetrating into the skull home. It does not matter in this connection how thick the skull bone is because I the automatic slacking back or leading back of the supporting plate 26 at any rate takes place only until the drilling pressure ceases, i.e. until the drill 12 has just penetrated the skull bone. Thereupon, namely, the coupling 4, 7 will disengage and the output shaft 8 with the drill 12 will stop and thus also the meshing gears 9 and 16 will come to a standstill.
  • coupling half 19 is arranged at the gear 16, said coupling half cooperating with the coupling half 21 fastened to the spindle 18 or a member fixed thereto, e.g. the regulator wheel.
  • This coupling 19, 21 is effective to rotate the spindle 18 in order to lift the supporting plate 26 with respect to the drill only if the supporting plate 26 with its centering pins 24 actually is in contact with the skull bone and the drilling pressure acts upon said plate.
  • the technical progress obtained with the trepan in accordance with the invention is substantial.
  • a simple and handy surgical instrument has been provided which combines all the mechanical parts necessary to perform its function in one single housing, which is important especially with respect to the necessity of keeping the instruments sterile.
  • the drill chuck 11 allows for an easy replacement of the drills simply by loosening the set screw 14 so that a borehole of desired diameter may be obtained at any time without any efforts.
  • An automatic trepan comprising, in combination, a
  • first coupling means defined on said shaft connectible' 4 housing, a driving shaft rotatably supported in said housto rotational drive means, first clutch means mounted on said shaft, an output shaft axially aligned with said driving shaft rotatably and axially shiftably supported in said housing having an end projecting from said housing, a drill chuck afiixed to said projecting end for interchangeably receiving an retaining drilling tools, second clutch means defined on said output shaft in opposed relation to said first clutch means, first spring means biasing said output shaft in a direction separating said first and second clutch means whereby axial force on said output shaft during drilling overcomes said spring means to engage said first and second clutch means, a threaded spindle arranged in parallel spaced relation to said output shaft mounted in said housing and axially shiftable thereto having an end projecting out of said housing and adjacently disposed to said output shaft projecting end, second spring means biasing said spindle in the direction of its projecting end, a drive gear rigidly secured to said output shaft meshing

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurosurgery (AREA)
  • Medical Informatics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Drilling And Boring (AREA)
  • Drilling Tools (AREA)
US649343A 1966-07-04 1967-06-27 Trepan with automatic stop means Expired - Lifetime US3515100A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA0052924 1966-07-04

Publications (1)

Publication Number Publication Date
US3515100A true US3515100A (en) 1970-06-02

Family

ID=6938724

Family Applications (1)

Application Number Title Priority Date Filing Date
US649343A Expired - Lifetime US3515100A (en) 1966-07-04 1967-06-27 Trepan with automatic stop means

Country Status (4)

Country Link
US (1) US3515100A (enrdf_load_stackoverflow)
DE (1) DE1541103C3 (enrdf_load_stackoverflow)
FR (1) FR1533489A (enrdf_load_stackoverflow)
GB (1) GB1178275A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797497A (en) * 1972-02-28 1974-03-19 Stryker Corp Drill like driving device
US4310269A (en) * 1980-02-19 1982-01-12 Northrop Corporation Drill break-through sensor
US4380991A (en) * 1979-07-30 1983-04-26 Hilti Aktiengesellschaft Drilling device
RU2281043C2 (ru) * 1999-06-03 2006-08-10 Эрслайн С.А. Устройство для обеспечения безопасности, для использования, в частности, в стоматологической хирургии (варианты), устройство и способ для предварительной калибровки и хранения данных, относящихся к глубине сверления
US20100034605A1 (en) * 2005-07-08 2010-02-11 Huckins Sean C Apparatus and method thereof for drilling holes in discrete controlled increments
US20160081775A1 (en) * 2014-09-18 2016-03-24 Metal Industries Research & Development Centre Bone Implant Drill
CN112137682A (zh) * 2019-06-27 2020-12-29 重庆西山科技股份有限公司 颅骨钻装置
US20210085342A1 (en) * 2018-11-29 2021-03-25 Hubly Inc. System and Method For Integrated Surgical Guide-Hub and Drill with Guided Drilling and Plunge Protection
CN116984652A (zh) * 2023-09-20 2023-11-03 山西瑞德机械制造股份有限公司 蒸压釜釜体釜盖连接件的加工设备及加工方法
US20240050107A1 (en) * 2019-10-11 2024-02-15 Critical Innovations Llc Percutaneous access pathway system
US20240423660A1 (en) * 2016-09-07 2024-12-26 Vertos Medical, Inc. Percutaneous lateral recess resection methods and instruments

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916221C2 (de) * 1979-04-21 1980-10-30 Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen Schädeltrepan
US4362161A (en) * 1980-10-27 1982-12-07 Codman & Shurtleff, Inc. Cranial drill
US4456010A (en) * 1980-10-27 1984-06-26 Codman & Shurtleff, Inc. Cranial drill
RU2187279C2 (ru) * 2000-05-16 2002-08-20 Государственное унитарное предприятие "НПО Астрофизика" Бормашина
RU2202967C2 (ru) * 2000-12-06 2003-04-27 Российский научно-исследовательский институт травматологии и ортопедии им. Р.Р. Вредена Устройство для сверления кости
RU2363403C1 (ru) * 2008-01-28 2009-08-10 Государственное образовательное учреждение высшего профессионального образования "Дальневосточный государственный медицинский университет Федерального агентства по здравоохранению и социальному развитию" Ограничитель сверла для остеосинтеза
CN111658063B (zh) * 2020-07-20 2021-08-31 中国人民解放军陆军特色医学中心 钻穿自停颅骨钻头及颅骨钻

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201371A (en) * 1922-06-30 1923-08-02 Arthur Hammond Shipley Improvements in or relating to stops or gauges for use on brush making machines
US2299267A (en) * 1938-06-11 1942-10-20 Fisher Samuel Lloyd Tool holder for surgical instruments
US2401548A (en) * 1943-04-30 1946-06-04 Chapman Everett Method and apparatus for cranial operations
US2504075A (en) * 1950-04-11 Trephine
US2525669A (en) * 1947-07-25 1950-10-10 Hainault Marcel Automatic trepans
US2675003A (en) * 1953-01-02 1954-04-13 Carl J Veley Surgical drill
US2842131A (en) * 1957-05-27 1958-07-08 George W Smith Automatic drill
US2967441A (en) * 1959-12-31 1961-01-10 Clair E Miles Device for controlling the depth of entrance of cutting tools

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504075A (en) * 1950-04-11 Trephine
GB201371A (en) * 1922-06-30 1923-08-02 Arthur Hammond Shipley Improvements in or relating to stops or gauges for use on brush making machines
US2299267A (en) * 1938-06-11 1942-10-20 Fisher Samuel Lloyd Tool holder for surgical instruments
US2401548A (en) * 1943-04-30 1946-06-04 Chapman Everett Method and apparatus for cranial operations
US2525669A (en) * 1947-07-25 1950-10-10 Hainault Marcel Automatic trepans
US2675003A (en) * 1953-01-02 1954-04-13 Carl J Veley Surgical drill
US2842131A (en) * 1957-05-27 1958-07-08 George W Smith Automatic drill
US2967441A (en) * 1959-12-31 1961-01-10 Clair E Miles Device for controlling the depth of entrance of cutting tools

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797497A (en) * 1972-02-28 1974-03-19 Stryker Corp Drill like driving device
US4380991A (en) * 1979-07-30 1983-04-26 Hilti Aktiengesellschaft Drilling device
US4310269A (en) * 1980-02-19 1982-01-12 Northrop Corporation Drill break-through sensor
RU2281043C2 (ru) * 1999-06-03 2006-08-10 Эрслайн С.А. Устройство для обеспечения безопасности, для использования, в частности, в стоматологической хирургии (варианты), устройство и способ для предварительной калибровки и хранения данных, относящихся к глубине сверления
US20100034605A1 (en) * 2005-07-08 2010-02-11 Huckins Sean C Apparatus and method thereof for drilling holes in discrete controlled increments
US9730772B2 (en) * 2014-09-18 2017-08-15 Metal Industries Research & Development Centre Bone implant drill
US20160081775A1 (en) * 2014-09-18 2016-03-24 Metal Industries Research & Development Centre Bone Implant Drill
US20240423660A1 (en) * 2016-09-07 2024-12-26 Vertos Medical, Inc. Percutaneous lateral recess resection methods and instruments
US20210085342A1 (en) * 2018-11-29 2021-03-25 Hubly Inc. System and Method For Integrated Surgical Guide-Hub and Drill with Guided Drilling and Plunge Protection
US11684376B2 (en) * 2018-11-29 2023-06-27 Hubly Inc. System and method for integrated surgical guide-hub and drill with guided drilling and plunge protection
US12383285B2 (en) 2018-11-29 2025-08-12 Hubly Inc. System and method for integrated surgical guide-hub and drill with guided drilling and plunge protection
CN112137682A (zh) * 2019-06-27 2020-12-29 重庆西山科技股份有限公司 颅骨钻装置
US20240050107A1 (en) * 2019-10-11 2024-02-15 Critical Innovations Llc Percutaneous access pathway system
CN116984652A (zh) * 2023-09-20 2023-11-03 山西瑞德机械制造股份有限公司 蒸压釜釜体釜盖连接件的加工设备及加工方法
CN116984652B (zh) * 2023-09-20 2023-12-15 山西瑞德机械制造股份有限公司 蒸压釜釜体釜盖连接件的加工设备及加工方法

Also Published As

Publication number Publication date
DE1541103B2 (enrdf_load_stackoverflow) 1975-04-03
DE1541103A1 (de) 1969-07-24
FR1533489A (fr) 1968-07-19
DE1541103C3 (de) 1975-11-20
GB1178275A (en) 1970-01-21

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