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Publication numberUS3128768 A
Publication typeGrant
Publication dateApr 14, 1964
Filing dateNov 24, 1961
Priority dateNov 24, 1961
Publication numberUS 3128768 A, US 3128768A, US-A-3128768, US3128768 A, US3128768A
InventorsGeistauts Mikelis
Original AssigneeRosemount Eng Co Ltd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Surgical drill
US 3128768 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Ap 1964 M. GEISTAUTS SURGICAL DRILL Filed Nov. 24, 1961 8 RT m U mm m u ATTORNEYS United States Patent 3,128,768 SURGICAL DRILL Mikelis Geistauts, St. Paul, Minn, assignor to Rosemount Engineering Company, Minneapolis, Minn., a corporation of Minnesota Filed Nov. 24, 1961, Ser. No. 154,580 8 Claims. (U. 128-305) This invention relates to an appliance for drilling into the bone of the patient, for the setting of the reinforcing wires or nails, as during bone-fracture repair. In some instances, in such surgical procedure, it is necessary to start a drill of small diameter in a location of deep penetration, through an incision opening in flesh, and in unhandy positions, and frequently it is necessary to start the drill at an oblique angle relative to the surface of the bone in which the drill is to penetrate.

It is an object of the invention to provide an improved appliance which may be used by the surgeon for carrying out the drillling operation. It is another object of the invention to provide an improved drill which will provide support for the drill during the starting of the drill and during the subsequent drilling operation. It is a further object of the invention to provide an improved surgical drill guide which provides support for the drill as the drill penetrates. It is another object of the invention to provide a hygienic device for drilling and guiding drills, during surgical operations.

Other and further objects are those inherent in the invention herein illustrated, described and claimed and will be apparent as the description proceeds.

To the accomplishment of the foregoing and related ends this invention then comprises the features hereinafter fully described and particularly pointed out in the claims, the following description setting forth in detail certain illustrative embodiments of the invention, these being indicative, however, of but a few of the various ways in which the principles of the invention may be employed.

This invention is illustrated with reference to the drawings wherein:

FIGURE 1 is a side elevational view of the drill, in place relative to a bone, into which the drill is penetrated.

FIGURE 2 is a longitudinal cross-sectional view of the drill of the present invention.

FIGURE 3 is an enlarged fragmentary longitudinal sectional view of the drill bit end portion of the apparatus.

FIGURE 4 is a transverse sectional view taken along the line and in the direction of the arrow 44 of FIG- URE 3.

FIGURE 5 is a fragmentary longitudinal sectional view illustrating a slightly modified form of the drill guide.

Throughout the drawings, the corresponding numerals refer to the same parts.

Referring to the drawings, the drill guide consists of a plurality of telescoping housing sections 10, 11 and 12. The section is of maximum diameter and at its righthand end, as shown in FIGURE 2 has a slightly enlarged portion 10A, the interior surface of which is threaded at 10B. At the opposite end, section 10 is inturned at 10C, so as to provide an inner shoulder for engaging enlarged flanged end 11A of the section 11. Similarly, the left-hand end of section 11, as shown in FIGURE 2, is inturned at 11B to provide an inner flange for engaging the outwardly turned end flange 12A of the end section 12. Referring to FIGURES 1, 2 and 3, section 12 is provided at its left end with internal threads 12B, terminating at a shoulder 120. This internally threaded end of the section 12 is made thus to receive an end collar 13, which is similarly threaded at 13B to match the thread 12B of section 12, into which it is screwed. It will be noted that the inner bore 13C of the end collar is of such a diameter as to provide only a slight clearance 14 relative to the diameter of drill 16, and accordingly the end 13D of the collar is exposed adjacent the seat 12C, and thereby forms a seating surface against which the end of the coil spring 15 is adapted to rest. The coil spring has an inside diameter only slightly larger than the diameter of the drill 16, and the spring extends back and is seated in a recess 17A of the inner drill support 17.

The drill support is provided with threads at 17B which match the threads 1013 of section 10. The drill support has a bore all the way through which receives the drill 16, and the drill is adapted to be held firmly with reference to the drill support by means of a set screw 18, which passes through a threaded aperture 10D in portion 10A of section 10. Accordingly, the set screw 18 not only serves firmly to attach the drill 16 to the drill support 17, but also the set screw 18 serves as a key, to prevent rotation of the drill guide 17 in the threads 10B, 17B. The exposed end 17C of the drill guide is adapted to receive a chunk C of any suitable hand or motor driven device D by which the drill support 17 and everything attached to it may be rotated.

The drill and drill guide are shown in the position of use in FIGURE 2. To prepare the guide for use, the sections 10, 11 and 12 are extended lengthwise to their maximum position so that the flanges 10C and 11A of sections 10 and 11 respectively, and the flanges 11B and 12A of the sections 11 and 12 respectively are engaged. The drill 16 is adjusted relative to the drill support 17 so that only a very small end portion 16E of the drill is exposed, as shown in FIGURE 2. The set screw 13 is then tightened, and the drill 16 will thereafter not move relative to the drill support 17.

Accordingly, with the incision made in the patient, and the bone BO exposed, the surgeon is then able to take the drill guide and seat the points 20 which extend from the collar 13 in position on the bone BO. At least two points 20 will normally engage the bone, and thereby prevent the end collar 13 of the drill guide from either sliding around the bone or moving longitudinally with reference to the bone. With the points 20 thus firmly seated, the drilling device D is rotated, and this causes rotation of the drill support 17 and section 10. Section 11 is free-floating, whereas section 12 is prevented from rotation, and relative rotation may therefore take place at the flanges 10C-11A or at the flanges 11B-12A, wherever a minimum friction occurs. As the device D is rotated, the rotation is imported to the drill 16 and the drill will be projected through the collar 13 until it engages the bone B0, and drill penetration begins. There is nothing to prevent the sections 10, 11 and 12 from telescoping as section 10 rotates relative to section 12, and the spring 15 is merely compressed. Accordingly, the drill 16 is free to extend farther and farther through the collar 13, while rotation of the drill and drill penetration continues. Meanwhile, the portion of the drill 16 is supported by the spring 15, particularly through section 11. The spring 15 normally will rotate with the drill and its left end, as shown in FIGURES 1, 2 and 3, rotating against the smooth face 13D of the collar 13. The spring 15 has merely clearance relative to the drill 16 and the inside surface of section 12. Inside the bore 13C of the collar 13, the drill turns with only a slight clearance 14. Therefore, adjacent the point of drill penetration, the drill is entirely supported by the spring and the bore against lateral deflection except for the small distance between the outer face of collar 13 and the point of penetration of the drill into the bone. The spring 15, where it passes through section 11 gives adequate support for the drill, and even though some slight lateral deflection may occur, this is not sufficient to be harmful. In this way, the entire drilling operation may be completed without undue ditficulty. In some instances, the surgeon will remove the drill support from the drill 17, while the drill is in place in the patient, and X-ray the patient to check the progress of the drill. This can easily be accomplished merely by loosening set screw 18, after which the whole drill guide and support is pulled off the drill while the drill still penetrates the bone of the patient. If the X-ray pictures show the drill to be properly directed, the drill support and guide is again slipped down on the drill until points 20 seat, and screw 18 is then tightened and drilling proceeds. X-raying during the drilling also enables the surgeon very accurately to estimate the additional penetration of the drill which is needed. This is done from the X-ray. Then, after the drill support has been replaced and screw 18 tightened, a measurement is taken before drilling is restarted, the measurement being taken from the points 20 back to a reference point, such as the back edge of housing A. In this way the surgeon can keep track of additional drill penetration.

From the sanitary standpoint, when the drilling operation is complete, the screw 18 is removed. When this is done, the drill support 17 may be unscrewed from section 10, and this permits withdrawal of the drill 16 and along with it there will be removed the spring 15. The spring and drill 16 may then be removed from the drill support 17, and the set screw 18 may also be removed for complete sanitation and sterilization.

The end collar 13 is then unscrewed from section 12, and this permits section 12 to be removed from section 11, and section 11 can be removed from section 10. Accordingly, all parts of the drill guide can be completely dis-assembled with convenience for thorough cleaning and complete sanitation and sterilization.

Referring to FIGURE 5, there is illustrated a slightly modified form of the invention. In this form of the invention the section 10 is modified to provide outside threads 10E at its right end, as shown in FIGURE 5, and is provided with an inner journal surface 17]. An opening 10G in the wall of section 10 is provided through which a screw 18 is threaded. In this case the head of the screw lies flush with or below the surface of the drill support 17. A cap 21 is threaded on the threaded end 10E to hold the drill support in the section 10.

The drill support 17 is provided with a smooth surfaced enlargement 178 (not threaded as in FIGURES 1-4), and this has bearing clearance at 17] so as to turn neatly in section 10. The drill support 17 is pushed against cap 21 by the force of spring 15.

With these modifications, the drill support 17 is accordingly able to rotate within section 10, and section 17 therefore may be gripped by the surgeon. This is advantageous in certain locations where the surgeon or surgical assistant desires to steady the outer end of the drill guide structure.

As many apparently widely different embodiments of 4 this invention may be made without departing from the spirit and scope thereof, it is to be understood that I do not limit myself to the specific embodiments disclosed herein.

What I claim is:

1. A surgical drill comprising a hollow chucking mandrel, a slender drill fitted in said mandrel and having its bit end projecting from said mandrel, a helical coil spring slidably mounted over an exposed part of said drill and being of diameter to snugly fit said drill, a telescopic sleeve composed of at least two sections mounted over said drill and spring and attached to said mandrel, means to prevent said spring from moving axially out of said telescopic sleeve, said telescopic sleeve having an aperture therein through which the drill is adapted to be projected as the sleeve is telescoped.

2. The surgical drill specified in claim 1 further characterized in that means is provided for securing said end section of the sleeve, the mandrel and drill against rela tive rotation.

3. The surgical drill specified in claim 1 further characterized in that said end section of the sleeve is journaled on said mandrel and the drill is secured in said mandrel.

4. A surgical drill comprising a hollow mandrel adapted to be connected to a chuck for rotation, a slender wire drill fitted in said mandrel, and projecting therefrom, said mandrel including a tubular end where the drill projects, and a compressible helical spring having an inside diameter of a size to receive the drill therein and an external diameter to be received in said tubular end and a length such that it covers the projecting drill, a telescopic sleeve composed of at least proximal and distal sections slidable relative to each other from a condition of maximum extension to a condition of lesser extension, said proximal section of the sleeve being connected to the mandrel and the distal section having an axial opening therein through which the drill may be projected, said spring being seated in the distal sleeve section for normally urging it to a condition of maximum extension relative to the proximal section.

5. The surgical drill specified in claim 4 further characterized in that the telescopic sleeve is composed of proximal, distal and intermediate sections.

6. The surgical drill specified in claim 4 further characterized in that the telescopic sleeve proximal section is secured to the mandrel for rotation therewith.

7. The surgical drill specified in claim 4 further characterized in that the telescopic sleeve proximal section is journalled on the mandrel.

8. The surgical drill specified in claim 4- further characterized in that said distal section includes projections outwardly thereon.

References Cited in the file of thispatent FOREIGN PATENTS 565,964 Great Britain Dec. 6, 1944

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
GB565964A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3719186 *Apr 22, 1971Mar 6, 1973Univ Alabama In BirminghamSurgical instrument for placement of bone pins and holes therefor
US3815605 *May 11, 1972Jun 11, 1974Philips CorpDevice and holder therefor for inserting a hollow coupling member into bone marrow
US3892232 *Sep 24, 1973Jul 1, 1975Alonzo J NeufeldMethod and apparatus for performing percutaneous bone surgery
US4299212 *Sep 7, 1978Nov 10, 1981Nederlandsch Central Organisatie voor Toegepast-Natuurwetenschappelijk OnderzoekExternal fracture immobilization splint
US4549538 *Nov 12, 1982Oct 29, 1985Zimmer, Inc.Pin inserter sheath
US4790812 *Nov 15, 1985Dec 13, 1988Hawkins Jr Irvin FApparatus and method for removing a target object from a body passsageway
US5015247 *Jun 13, 1988May 14, 1991Michelson Gary KThreaded spinal implant
US5439005 *Mar 2, 1993Aug 8, 1995Midas Rex Pneumatic Tools, Inc.Surgical instrument with telescoping sleeve
US5545162 *Feb 15, 1995Aug 13, 1996Huebner; Randall J.External fixator for repairing fractures of distal radius and wrist
US5569254 *Apr 12, 1995Oct 29, 1996Midas Rex Pneumatic Tools, Inc.Surgical resection tool having an irrigation, lighting, suction and vision attachment
US5575794 *Jan 27, 1994Nov 19, 1996Walus; Richard L.Tool for implanting a fiducial marker
US5595193 *Jun 6, 1995Jan 21, 1997Walus; Richard L.Tool for implanting a fiducial marker
US5624440 *Jan 11, 1996Apr 29, 1997Huebner; Randall J.Compact small bone fixator
US5658283 *Sep 17, 1996Aug 19, 1997Huebner; Randall J.Of a bone
US5662649 *Apr 22, 1996Sep 2, 1997Huebner; Randall J.External fixator for repairing fractures of distal radius and wrist
US5741253 *Oct 29, 1992Apr 21, 1998Michelson; Gary KarlinMethod for inserting spinal implants
US5772661 *Feb 27, 1995Jun 30, 1998Michelson; Gary KarlinMethods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine
US5797909 *Jun 7, 1995Aug 25, 1998Michelson; Gary KarlinApparatus for inserting spinal implants
US5976134 *Feb 5, 1998Nov 2, 1999Huebner; Randall J.External fixator for repairing fractures
US6096038 *Jun 7, 1995Aug 1, 2000Michelson; Gary KarlinApparatus for inserting spinal implants
US6096042 *Dec 23, 1996Aug 1, 2000Herbert; Timothy JamesDriver
US6120502 *May 27, 1994Sep 19, 2000Michelson; Gary KarlinApparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US6123705 *Oct 1, 1996Sep 26, 2000Sdgi Holdings, Inc.Interbody spinal fusion implants
US6149650 *May 8, 1998Nov 21, 2000Michelson; Gary KarlinThreaded spinal implant
US6162224 *May 25, 1999Dec 19, 2000Acumed, Inc.External fixator for repairing fractures of distal radius and wrist
US6171309May 25, 1999Jan 9, 2001Acumed, Inc.External fixator for repairing fractures of distal radius and wrist
US6200322 *Aug 13, 1999Mar 13, 2001Sdgi Holdings, Inc.Minimal exposure posterior spinal interbody instrumentation and technique
US6210412Jun 7, 1995Apr 3, 2001Gary Karlin MichelsonMethod for inserting frusto-conical interbody spinal fusion implants
US6224595Apr 20, 1998May 1, 2001Sofamor Danek Holdings, Inc.Method for inserting a spinal implant
US6224603 *Jun 4, 1999May 1, 2001Nuvasive, Inc.Transiliac approach to entering a patient's intervertebral space
US6264656May 8, 1998Jul 24, 2001Gary Karlin MichelsonThreaded spinal implant
US6270498Jun 7, 1995Aug 7, 2001Gary Karlin MichelsonApparatus for inserting spinal implants
US6519319Oct 25, 2000Feb 11, 2003Nuvasive, Inc.Image intensifier reticle system
US6582432Feb 2, 2000Jun 24, 2003Karlin Technology Inc.Cap for use with artificial spinal fusion implant
US6605089Sep 23, 1999Aug 12, 2003Gary Karlin MichelsonApparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US6758849Aug 18, 2000Jul 6, 2004Sdgi Holdings, Inc.Interbody spinal fusion implants
US6770074Nov 17, 2001Aug 3, 2004Gary Karlin MichelsonApparatus for use in inserting spinal implants
US6875213Feb 21, 2003Apr 5, 2005Sdgi Holdings, Inc.Method of inserting spinal implants with the use of imaging
US6923810Jun 7, 1995Aug 2, 2005Gary Karlin MichelsonFrusto-conical interbody spinal fusion implants
US7115128Oct 15, 2003Oct 3, 2006Sdgi Holdings, Inc.Method for forming through a guard an implantation space in the human spine
US7141074 *Sep 17, 2003Nov 28, 2006Depuy Spine, Inc.Variable depth drill with self-centering sleeve
US7147640Dec 10, 2003Dec 12, 2006Acumed LlcExternal fixator
US7207991Mar 18, 2002Apr 24, 2007Warsaw Orthopedic, Inc.Method for the endoscopic correction of spinal disease
US7258692May 23, 2002Aug 21, 2007Zimmer, Inc.Method and apparatus for reducing femoral fractures
US7264622Oct 24, 2003Sep 4, 2007Warsaw Orthopedic, Inc.System for radial bone displacement
US7288093Nov 8, 2002Oct 30, 2007Warsaw Orthopedic, Inc.Spinal fusion implant having a curved end
US7291149Oct 4, 1999Nov 6, 2007Warsaw Orthopedic, Inc.Method for inserting interbody spinal fusion implants
US7326214Aug 9, 2003Feb 5, 2008Warsaw Orthopedic, Inc.Bone cutting device having a cutting edge with a non-extending center
US7399303Aug 20, 2002Jul 15, 2008Warsaw Orthopedic, Inc.Bone cutting device and method for use thereof
US7431722Jun 6, 2000Oct 7, 2008Warsaw Orthopedic, Inc.Apparatus including a guard member having a passage with a non-circular cross section for providing protected access to the spine
US7452359Jun 7, 1995Nov 18, 2008Warsaw Orthopedic, Inc.Apparatus for inserting spinal implants
US7455672Jul 31, 2003Nov 25, 2008Gary Karlin MichelsonMethod for the delivery of electrical current to promote bone growth between adjacent bone masses
US7485119Oct 14, 2005Feb 3, 2009Zimmer Technology, Inc.Method and apparatus for reducing femoral fractures
US7488329Feb 18, 2005Feb 10, 2009Zimmer Technology, Inc.Method and apparatus for reducing femoral fractures
US7491205Jun 7, 1995Feb 17, 2009Warsaw Orthopedic, Inc.Instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the lateral aspect of the spine
US7534254Jun 7, 1995May 19, 2009Warsaw Orthopedic, Inc.Threaded frusto-conical interbody spinal fusion implants
US7569054Nov 8, 2005Aug 4, 2009Warsaw Orthopedic, Inc.Tubular member having a passage and opposed bone contacting extensions
US7686805Jul 1, 2004Mar 30, 2010Warsaw Orthopedic, Inc.Methods for distraction of a disc space
US7691148Mar 19, 2005Apr 6, 2010Warsaw Orthopedic, Inc.Frusto-conical spinal implant
US7722619Apr 25, 2006May 25, 2010Warsaw Orthopedic, Inc.Method of maintaining distraction of a spinal disc space
US7727236May 23, 2006Jun 1, 2010Ebi, LlcInstrumentation for fixation devices
US7828800May 18, 2009Nov 9, 2010Warsaw Orthopedic, Inc.Threaded frusto-conical interbody spinal fusion implants
US7887565Feb 18, 2006Feb 15, 2011Warsaw Orthopedic, Inc.Apparatus and method for sequential distraction
US7914530Apr 25, 2006Mar 29, 2011Warsaw Orthopedic, Inc.Tissue dilator and method for performing a spinal procedure
US7922720Feb 17, 2009Apr 12, 2011Zimmer Technology, Inc.Orthopaedic cutting instrument and method
US7935116Nov 25, 2008May 3, 2011Gary Karlin MichelsonImplant for the delivery of electrical current to promote bone growth between adjacent bone masses
US7942933Apr 3, 2010May 17, 2011Warsaw Orthopedic, Inc.Frusto-conical spinal implant
US7993347Jul 27, 2000Aug 9, 2011Warsaw Orthopedic, Inc.Guard for use in performing human interbody spinal surgery
US8057475Nov 9, 2010Nov 15, 2011Warsaw Orthopedic, Inc.Threaded interbody spinal fusion implant
US8066705Feb 21, 2003Nov 29, 2011Warsaw Orthopedic, Inc.Instrumentation for the endoscopic correction of spinal disease
US8206387Apr 21, 2011Jun 26, 2012Michelson Gary KInterbody spinal implant inductively coupled to an external power supply
US8226652Nov 14, 2011Jul 24, 2012Warsaw Orthopedic, Inc.Threaded frusto-conical spinal implants
US8251997Nov 29, 2011Aug 28, 2012Warsaw Orthopedic, Inc.Method for inserting an artificial implant between two adjacent vertebrae along a coronal plane
US8282638May 27, 2010Oct 9, 2012Ebi, LlcInstrumentation for fixation devices
US8353909Apr 25, 2006Jan 15, 2013Warsaw Orthopedic, Inc.Surgical instrument for distracting a spinal disc space
US8409292May 17, 2011Apr 2, 2013Warsaw Orthopedic, Inc.Spinal fusion implant
US8679118Jul 23, 2012Mar 25, 2014Warsaw Orthopedic, Inc.Spinal implants
US8734447Jun 27, 2000May 27, 2014Warsaw Orthopedic, Inc.Apparatus and method of inserting spinal implants
US8758344Aug 28, 2012Jun 24, 2014Warsaw Orthopedic, Inc.Spinal implant and instruments
US20130178860 *Jan 4, 2013Jul 11, 2013Stryker Trauma SaSoft tissue protector and drill guide for an implantation kit
DE10064975C1 *Dec 23, 2000Jul 25, 2002Aesculap Ag & Co KgBohrwerkzeug für eine chirurgische Bohrmaschine
EP1410765A2 *Oct 8, 2003Apr 21, 2004Zimmer Technology, Inc.Method and apparatus for reducing femoral fractures
WO1997024991A1 *Dec 23, 1996Jul 17, 1997Timothy James HerbertA driver
WO2002051319A2 *Dec 7, 2001Jul 4, 2002Aesculap Ag & Co KgDrill protective sleeve with double-layer cover construction
U.S. Classification606/180, 408/112, 606/80, 408/85
International ClassificationA61B19/00, A61B17/16
Cooperative ClassificationA61B2019/481, A61B17/1633
European ClassificationA61B17/16D14