US2500993A - Fracture fixation device - Google Patents

Fracture fixation device Download PDF

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Publication number
US2500993A
US2500993A US581402A US58140245A US2500993A US 2500993 A US2500993 A US 2500993A US 581402 A US581402 A US 581402A US 58140245 A US58140245 A US 58140245A US 2500993 A US2500993 A US 2500993A
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Prior art keywords
nail
plate
femur
fixation device
fracture
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US581402A
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Mason Christopher
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Mason Christopher
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/74Devices for the head or neck or trochanter of the femur
    • A61B17/742Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
    • A61B17/748Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck with means for adapting the angle between the longitudinal elements and the shaft axis of the femur
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/74Devices for the head or neck or trochanter of the femur
    • A61B17/742Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
    • A61B17/746Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to a plate opposite the femoral head

Description

web 21, 1950 c, MASQN FRACTURE FIXATION DEVICE Filed March '7, 1945 I INVENTQR. C

asropk/se ATTORNEY.

Patented Mar. 21, 1950 UNITED STATES PATENT OFFICE 2,500,993 FRACTURE FIXATION DEVICE Christopher Mason, Los Angeles, Calif. Application March 7, 1945, Serial No. 581,402

This invention relates to the fixation of fractures of the intertrochanteric and subtrochanteric regions of the femur bone and particularly the femur neck, and contemplates more specifically to provide simple, effective and sure means An object of this invention is to provide means of the character indicated which may be set into fixation position without the need for special tools for insertion or removal.

' Another object is to provide internal fixation means for the purpose indicated which permits of insertion into position by merely tapping into place, and removal without the need of special tools.

A further object is to provide a device of the indicated type which may be caused to assume a suitable position whereby the portions thereof engaged with both the neck and the proximal fragment of a fractured femur, for instance, are held in suitable fixation.

This invention possesses many other advantages and has other objects which may be made more easily apparent from a consideration of several embodiments of the invention.' For this purpose there are shown two forms in the drawings accompanying and forming part of the pres ent specification. These forms will now be described in detail, illustrating the general principles of the invention; but it is to be understood that this detailed description is not to be taken in a limiting sense, since the scope of the invention is best defined by the appended claims.

Referring to the drawings:

Figure 1 is a semi-diagrammatic front view showing an application of a fracture fixation device according to the present invention;

Figure 2 is a similar side view thereof;

Figure 3 is an enlarged side view taken as indicated by line 3-3 of Figure 2; v

Figure 4 is a side view of a fracture fixation device embodying the present invention;

Figure 5 is a plan view thereof;

Figure 6 is a fragmentary detail sectional view showing hinge means employed in the invention, in one position thereof;

2 Claims. (01. 12892) Figure 7 is a similar view of said hinge means in another position; and,

Figures 8 and 9 are cross sectional detail views astaken on the respective lines 88 and 99 of Figure 4.

As an example of application of the invention,

. a human femur is illustrated as providing the means of application of the preferred embodiment of the fracture fixation device.

As shown; the femur comprises a shank H], a trochanter H, a neck l2, and a head 13. As well understood, the femur, in the manner of bone structure, has a relatively hard bony cortex surrounding a relatively soft, spongy and cellular structure. Also, the spongy interior of the. femur "varies in density, being most dense in the interior of the femur head. The foregoing known structure of the femur has been set forth for the purpose of more clearly demonstrating the manner in which the invention utilizes and takes advantage ofthe femur structure in order to provide safe, sure and efficacious fixation of a fracture thereof.

Also, as shown in Figure 3, the femur may be fractured at one 0r' more of the points I4, (5 and [6, the present device being applicable to all of these'fracture points by varying the lengths of the nail and/or plate portions.

The herein contemplated device preferably comprises a member 20, herein termed a nail, a second member 2|, herein termed a plate, and preferably includes means such as a hinge or pivot pin 22 whereby said nail and plate ma have relative articulation.

The nail 20, of the present embodiment, is V-shaped in cross-section, as best seen in Figure 8, comprising the sides 23 arranged substantially at right angles. This form of section of the nail is preferred to obviate rotation or twistof the nail when being inserted into the spongy parts of a bone. One end of said nail is preferably sharpened as at 24 and the other end formed with the sides 23 in folded parallel relation as at 25 for connection with the pivot pin 22. The nail, at the pivot end, is also preferably provided with an angled edge 26 affording the stop points 2! and 28. The plate 2! is preferably of arcuate cross section as seen best in Figure 9, and the end thereof,

connected to the nail 20 by pivot pin 22, may be arranged to provide parallel walls 29 engaged over end 25 of said nail, both the nail end 25 and the walls 29 having aligned holes for the hinge or pivot pin 22.

It will be noted that the V-section of the nail and the curved section of the plate are oppositely disposed (see Figure 5) and that, with the nail and plate in aligned straight position, the stop point 2'! of the nail abuts the extreme end 30 of the plate and that, in this straight condition of the parts, the pivot 22 is on the opposite side of a line 3! drawn between the free ends of the nail and plate from the stop points 2! and 30. It becomes evident then, that pressure or force applied to the end 32 of the plate, as by means of a hammer-or'mallet, will be transmitted directlyito the sharpened end 24 of the nail to force ordrive the same into a mass of the consistency of a bone interior. Thus, in its straight condition, the 'device may be applied as intended.

As may be seen from the drawing, limited articulation between the nail 20 and plate #2! is airorded. The limit of the included obtuse angle is in the nature of 130 to 135 in accordance with the norminal angle between the neckzandshank of a femur. The stop point 23, adapted to en- Igage the plate at-a point between its end 32 and the point 36 is provided to limitrelative movementof the parts in that direction.

The plate 1i may be provided with aplurality of holes such as shown at 33.

Assuming that fixation of a fracture of the iemuratany of the points M, [5 or 16 isdesired, :a flesh incision is made to give access to the affected femoral parts. A .hole, approximately one-half inch in diameter, is then drilled or chiseled through the cortex of the femur :helow the greater trochanter and in the line -.of-direction-of the femoral'neck and head. The fracture is reduced with the femur :held in suitable .Iiexion and neutral rotation. The sharpiend 24 5- 'of thenail ZBisthen inserted in the ,driiledihole and-eitherprmsedzor tapped into the-spongyin- ,terior of the femoral neck and then into the denser interior of the femoral head;- ;As this phase of the operation proceedathe properangular and rotational disposition of the nail'maybe checked and ascertained by, .from time to time, swinging the plate 2| on the pivot pin--22 to check its ultimate disposition with respect to .theproximal portion of the femur. After the nail iisxin position and firml inserted into the dense interior of the femoral head, the plate-2i is "swung down on its pivot -22 to engage against distalgportions of the femur. And finally, screws, such as 34 may be employed for securing the plate in position, care being taken that these screws are suificiently .long to pass completely from side to side of the femur cortex to afiord firmanchorage therein. The incision is thenclosed andidressed.

After the necessary bone knitting period, the

fixation device may be removed by simply .ex-

tracting the screws 34 and exerting .a pull on the plate 2|, which may be first swung into alignment with the nail .portion .23. This vcanoe done with .pliers or by inserting .an instrument in one of the holes 33 and pulling or tapping the device clear of the femur. When in extended position, the plate serves conveniently as a handle by which the device may be grasped and the nail portion pulled from the bone.

I claim:

1. A fracture fixation device comprising a nail part, a plate part and a pivot connecting said parts, said nail part having a sharpened end porztion, said'- ,plate 'part having -,a' force application point, andcoacting portions of said parts adjacent said pivot for maintaining said parts in a straight line arrangement, the pivot and portions being ,positioned so that a straight line connecting the'sharpened portion and the force applying 1-point apasseszbetween said coacting portions and said pivot.

"2. A'fracture' fixation device comprising a nail part,:ia;:-,plate part, and a pivot connecting said parts, said nail part having a sharpened end por- .tion, said plate ,part having ,a force application point, and coactingportions of said parts serving ptollimitipivotal movement of said parts in one jtioniirom said ,onedirection to assume an angu- .lar relation enabling .the device to .be attached forffixation.

"CHRISTOPHER MASON.

REFERENCES CITED The following references are of record .in the file of this patent:

UNITED STATES PATENTS Number Name Date "817,785 ,Kritsch .Apr. 17, 1906 13375817 Bode Apr. 20, 1920 "2,235,319 Callahan et a1 'Mar. '18, 1941 OTHER .REFERENCES -Blount,'W. P., Blade-Plate Internal Fixation for High'FemoralOsteotomies, The Journal of Bone and Joint Surgery, Apr. l943, page 322.

Jewett, Eugene L., One-Piece Angle Nail for Trochanteric Fractures, The Journal of Bone and Joint Surgery, Oct. 1941,'pp. 803-910 (see pages 807-808) Moore, A.'T., The Journal of Bone and Joint Surgery, Jan. 1944, p. 54.

US581402A 1945-03-07 1945-03-07 Fracture fixation device Expired - Lifetime US2500993A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602445A (en) * 1950-03-16 1952-07-08 Alfred E Gallant Fracture nail
US2679245A (en) * 1950-03-20 1954-05-25 Timmermans Frans Donatus Prosthesis for femoral heads
US3256877A (en) * 1961-12-11 1966-06-21 Edward J Haboush Adjustable nail plate joint
US20030040748A1 (en) * 2001-08-24 2003-02-27 Aikins Jerry L. Blade plate and instruments
US20050085819A1 (en) * 2003-08-28 2005-04-21 Ellis Thomas J. Bone plates
WO2006053573A2 (en) * 2004-11-18 2006-05-26 Mohamed Khairy El Gamal Femoral targeting device for internal fixation of femoral fractures
US20060235409A1 (en) * 2005-03-17 2006-10-19 Jason Blain Flanged interbody fusion device
US20070293865A1 (en) * 2006-06-09 2007-12-20 Gyrus Productions Method of performing a decompressive craniectomy
US20090069812A1 (en) * 2007-06-15 2009-03-12 Acumed Llc Rib fixation with an intramedullary nail
US20100249937A1 (en) * 2009-03-27 2010-09-30 Spinal Elements, Inc. Flanged interbody fusion device
US20110152867A1 (en) * 2009-12-18 2011-06-23 Joseph Petrzelka Articulating Tool and Methods of Using
US20120226278A1 (en) * 2010-09-20 2012-09-06 Nardini Reto Intramedullary Nail
US9237910B2 (en) 2012-01-26 2016-01-19 Acute Innovations Llc Clip for rib stabilization
US9775657B2 (en) 2011-09-30 2017-10-03 Acute Innovations Llc Bone fixation system with opposed mounting portions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US817785A (en) * 1906-02-23 1906-04-17 Charles E Kritsch Joint for artificial limbs.
US1337817A (en) * 1919-11-26 1920-04-20 Bode Robert Rudland Hinge for artificial legs
US2235419A (en) * 1938-03-18 1941-03-18 James J Callahan Fracture nail and director

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US817785A (en) * 1906-02-23 1906-04-17 Charles E Kritsch Joint for artificial limbs.
US1337817A (en) * 1919-11-26 1920-04-20 Bode Robert Rudland Hinge for artificial legs
US2235419A (en) * 1938-03-18 1941-03-18 James J Callahan Fracture nail and director

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602445A (en) * 1950-03-16 1952-07-08 Alfred E Gallant Fracture nail
US2679245A (en) * 1950-03-20 1954-05-25 Timmermans Frans Donatus Prosthesis for femoral heads
US3256877A (en) * 1961-12-11 1966-06-21 Edward J Haboush Adjustable nail plate joint
US7316687B2 (en) * 2001-08-24 2008-01-08 Zimmer Technology, Inc. Blade plate and instruments
US20030040748A1 (en) * 2001-08-24 2003-02-27 Aikins Jerry L. Blade plate and instruments
US20080027458A1 (en) * 2001-08-24 2008-01-31 Zimmer Technology, Inc. Blade plate and instruments
US7695501B2 (en) 2003-08-28 2010-04-13 Ellis Thomas J Bone fixation system
US8632573B2 (en) 2003-08-28 2014-01-21 Thomas J. Ellis Bone fixation system
US20070123883A1 (en) * 2003-08-28 2007-05-31 Ellis Thomas J Bone fixation system
US7635365B2 (en) 2003-08-28 2009-12-22 Ellis Thomas J Bone plates
US20050085819A1 (en) * 2003-08-28 2005-04-21 Ellis Thomas J. Bone plates
WO2006053573A2 (en) * 2004-11-18 2006-05-26 Mohamed Khairy El Gamal Femoral targeting device for internal fixation of femoral fractures
WO2006053573A3 (en) * 2004-11-18 2006-07-13 Gamal Mohamed Khairy El Femoral targeting device for internal fixation of femoral fractures
US8496691B2 (en) 2005-03-17 2013-07-30 Spinal Elements, Inc. Side-biased orthopedic fastener retention
US20070055252A1 (en) * 2005-03-17 2007-03-08 Jason Blain Flanged interbody fusion device with oblong fastener apertures
US20060235411A1 (en) * 2005-03-17 2006-10-19 Jason Blain Orthopedic expansion fastener
US20060235533A1 (en) * 2005-03-17 2006-10-19 Jason Blain Flanged interbody fusion device with hinge
US20060235412A1 (en) * 2005-03-17 2006-10-19 Jason Blain Side-biased orthopedic fastener retention
US9585707B2 (en) 2005-03-17 2017-03-07 Spinal Elements, Inc. Flanged interbody fusion device with fastener insert and retaining ring
US20060235518A1 (en) * 2005-03-17 2006-10-19 Jason Blain Flanged interbody fusion device with fastener insert and retaining ring
US20060235403A1 (en) * 2005-03-17 2006-10-19 Jason Blain Flanged interbody fusion device with locking plate
US20060235409A1 (en) * 2005-03-17 2006-10-19 Jason Blain Flanged interbody fusion device
US8801794B2 (en) 2005-03-17 2014-08-12 Spinal Elements, Inc. Flanged interbody fusion device with fastener insert and retaining ring
US8100955B2 (en) 2005-03-17 2012-01-24 Spinal Elements, Inc. Orthopedic expansion fastener
US8696721B2 (en) 2005-03-17 2014-04-15 Spinal Elements, Inc. Orthopedic expansion fastener
US9936984B2 (en) 2005-03-17 2018-04-10 Spinal Elements, Inc. Flanged interbody fusion device with fastener insert and retaining ring
US8470039B2 (en) 2005-03-17 2013-06-25 Spinal Elements, Inc. Flanged interbody fusion device with fastener insert and retaining ring
US8496708B2 (en) * 2005-03-17 2013-07-30 Spinal Elements, Inc. Flanged interbody fusion device with hinge
US9265546B2 (en) 2005-03-17 2016-02-23 Spinal Elements, Inc. Side-biased orthopedic fastener retention
US8439956B2 (en) 2006-06-09 2013-05-14 Gyrus Productions, Inc. Method of performing a decompressive craniectomy
US20070293865A1 (en) * 2006-06-09 2007-12-20 Gyrus Productions Method of performing a decompressive craniectomy
US20090069812A1 (en) * 2007-06-15 2009-03-12 Acumed Llc Rib fixation with an intramedullary nail
US9808297B2 (en) 2008-10-10 2017-11-07 Acute Innovations Llc Bone fixation system with opposed mounting portions
US20100249937A1 (en) * 2009-03-27 2010-09-30 Spinal Elements, Inc. Flanged interbody fusion device
US9220547B2 (en) 2009-03-27 2015-12-29 Spinal Elements, Inc. Flanged interbody fusion device
US8568417B2 (en) 2009-12-18 2013-10-29 Charles River Engineering Solutions And Technologies, Llc Articulating tool and methods of using
US20110152867A1 (en) * 2009-12-18 2011-06-23 Joseph Petrzelka Articulating Tool and Methods of Using
US9924986B2 (en) 2009-12-18 2018-03-27 Charles River Engineering Solutions And Technologies, Llc Articulating tool and methods of using
US20120226278A1 (en) * 2010-09-20 2012-09-06 Nardini Reto Intramedullary Nail
US9775657B2 (en) 2011-09-30 2017-10-03 Acute Innovations Llc Bone fixation system with opposed mounting portions
US9237910B2 (en) 2012-01-26 2016-01-19 Acute Innovations Llc Clip for rib stabilization

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