|Publication number||US2594086 A|
|Publication date||22 Apr 1952|
|Filing date||29 Apr 1950|
|Priority date||29 Apr 1950|
|Publication number||US 2594086 A, US 2594086A, US-A-2594086, US2594086 A, US2594086A|
|Inventors||Smith David P|
|Original Assignee||Smith David P|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (2), Referenced by (131), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
April 22, 1952 D. P. SMITH 2,594,086
TABLE SUPPORTED ABDOMINAL RETRACTOR Filed April 29, 1950 3 Sheets-Sheet 1.
IN VEN TOR. DAV/0 I? SMITH ATTX April 22, 1952 p, sMlTH 2,594,086
TABLE SUPPORTED ABDOMINAL. RETRACTOR Filed April 29, 1950 5 Sheets-Sheet 2 INVENTOR: DAV/D I? SMITH ATTX April 22, 1952 D. P. SMITH 2,594,086
TABLE SUPPORTED ABDOMINAL RETRACTOR Filed April 29, 1950 3 Sheets-Sheet 3 4 INVENTOR. DAV/0 PSM/TH ATTX Patented Apr. 22, 1952 OFFICE TABLE SUPPORTED ABDOMINAL RETRACTOR David P. Smith, Meriden, Conn. Application April 29, 1950, Serial No. 158,981 c Claims. (o1.12s-20) This invention relates to surgical retractors and more particularly to an abdominal retractor which comprises means for firmly supporting a plurality of independently adjustable retracting elements above an operating table so as to hold the edges of a wound and the viscera or other organs away from the field of operation.
One object of this invention is to provide a retractor ofthe above nature in which the retracting elements do not depend upon each other or upon their engagement with the patient for their proper support, thus avoiding movement of the retracting elements which might cause shock tothe patient and which would be a source of annoyance to the surgeon.
Another object is to provide a retractor of the above nature which may be employed to retract any part of the wound or the organs therein in one direction without requiring the retraction of another part in the opposite direction.
Another object is to provide a retractor of the above nature in which, if desired, the retracting elements may all be adjusted as a unit in both horizontal and vertical directions.
Another object is to provide a retractor of the above nature in which each of the retracting elements may be easily adjusted either radially or circumferentially of the wound at any time without disturbing the positions of any of the other retracting elements.
Another object is to provide a retractor of the above nature which may be readily installed, adjusted, and removed, and which will not be likely to change its adjustment accidentally, whereby the retractor will require a minimum of attention from the operating surgeon and the minimum number of assistants will be required.
A further object is to provide a retractor of the above nature which will be simple in construction, inexpensive to manufacture, easy to install and manipulate having universal adjustment, and very efficient and durable in use.
With these and other objects in view there has been illustrated on the accompanying drawing one form in which the invention may conveniently be embodied in practice. e
The invention herein disclosed constitutes an improvement in the retractor disclosed in my copending application entitled Self-Supporting Surgical Retractor, S. N 92,602, now Patent Number 2,586,488 granted February 19, 1952, filed May 11, 1949, in respect to the hinged side supporting arms and the circumferential adjustability of the retractor elements, not shown in said copending application.
In the drawing,
Fig. 1 is a perspective view of the improved retractor.
Fig. 2 is a plan view of the same as it would appear when attached to the side rails of an operating table.
Fig. 3 is a front view of the same, showing the retractor as it would appear when the retracting elements are removed, and showing the side rail clamps in cross-section.
Fig. 4 is a fragmentary view, on an enlarged scale, taken on the line 4-4 of Fig. 2, showing the manner in which the side arms are connected to the ring.
V Fig. 5 is a partial perspective view showing an end portion of one of the side arms and the pivot pin therein.
Fig. 6 is a cross-sectional view on an enlarged scale, taken substantially on the line 66 of Fig. 2, showing the manner in which the retracting elements are attached to the supporting ring.
- Fig. '7 is a fragmentary perspective view of the same.
Fig. 8 is a perspective view showing one of the slotted brackets for attaching the clamping elements to the supporting ring.
Referring now to the drawing, in which like reference numerals denote corresponding parts throughout the several views, the improved retractor comprises a supporting ring [0 which is of flat circular shape and of uniform rectangular cross-section. In order to support the ring I0, provision is made of a pair of outwardly-extending side arms ll, I2, the inner end of each of said side arms being formed with a notch l3 in which the enlarged flat-sided base M of a pivot pin [5 is swingably secured by means of a horizontal cross pin it.
The lower surface of the supporting ring II] is provided at diametrically opposite points with a pair of lugs I! which are apertured in a direction radially of said ring and attached thereto by means of rivets Hi. The lugs l! are adapted to receive the pivot pins l5 which may be firmly secured therein by thumb screws [8. l
The side arms II l 2 are curved outwardly and downwardly from the pivot pins l5 and are adapted to be attached to the side rails 20, 2| of an operating table 22 by means of a pair of C-shaped clamps 23, 24. The clamps 23 24 are so shaped as to be freely slidable in a longitudinal direction upon the side rails 20, 2| and are vertically apertured in such a manner that the side arms ll, l2 may be adjustably held therein and securely clamped against the outer faces of the side rails 20, 2| by thumb screws 25.
In order to hold a wound open and retain the internal organs of the body away from the field of operation, provision is made of a plurality of angular retracting elements 26, each of which comprises a longitudinally slotted horizontal upper base portion or arm 21, and a depending concave hook portion 28 at one end of said arm. Each of the retracting elements 26 is provided with a U-shaped bracket 29 in the form of a flat rectangular block having a deep rectangular slot 30 in one edge thereof, and athreaded stud 3| attached to its upper surface.
The stud 3| extends upwardly through the slot in the retractor arm 21 and is provided with a knurled thumb nut 32, whereby each of the retracting elements 26 may be adjustably clamped to its respective U-shaped bracket 29.
The slots 30 are adaptedto receive the outer edge of the ring H] and are so proportioned that the brackets 29 will be slidable circumferentially on said ring. Further, the slots 36 have divergent outer end surfaces 33 which will facilitate the application of the brackets to said ring Ill.
In order to prevent any substantial turning movement of the U-shaped brackets with respect to the retracting elements 26, the upper surface of each of said brackets is provided with a short upstanding pin 34 engaged in the slot of the arm 27 adjacent the threaded stud 3|.
Manner of use In use, the retractor herein disclosed will be applied to the operating table 22 after the patient P has first been prepared for the operation and is resting on said table in the position indicated in dotted lines in Fig. 3.
The first step in applying the retractor will be to insert the lower ends of the pair of side arms I, I2 into the C-shaped clamps 23, 24 which embrace the side rails 26, 2|, after which the thumbscrews 25 will be tightened so as to clamp said side arms securely against said rails.
It will be noted that the curvature of the side arms |2 will permit the supporting ring ||l to be swung either to the right or to the left prior to the tightening of the thumb screws 25, this movement being obtained by inserting the side arms l2 through the clamps 23, 24 in varying degrees.
Moreover, the vertical apertures in the clamps 23, 24 provide sufiicient clearance to permit the curved side arms I I, I2 to be slid equal distances therein for adjusting the supporting ring In in a vertical direction, after which the thumb screws 25 may be tightened so as to hold the retractor securely at the desired elevated position. Lateral tilting adjustment of the supporting ring l may, of course, be obtained by moving either one of the side arms l2 vertically in its respective clamp 23 or 24, whereas tilting of the ring II] in a direction longitudinally of the table 22 may be permitted by the manipulation of the thumb screws I9.-
Thus, the supporting ring In may be easily adjusted laterally, longitudinally, and vertically, and tilted either laterally or longitudinally so that it will occupy the precise position desired by the surgeon, in which position it will be firmly held by the thumb screws I9 and 25.
After an incision or opening has been made in the patients body, the retracting elements 26 will be inserted in the wound and applied to the ring H1 in the positions desired, the brackets 29 being slipped over the outer edge of the ring l6 so that the arms 21 of said retracting elements are disposed above said ring. The slotted formation of the retracting element arms 2'! will now permit each element to be slid outwardly so as to provide the desired degree of retraction, after which the respective thumb nuts 32 will be tightened.
The upstanding pins 34 on the brackets 29 will, of course, prevent undesirable rotation of said brackets during manipulation of the thumb nuts 32, and will aid in maintaining the slotted arms 21 and brackets 29 in proper relationship at all times.
Inasmuch as the brackets 29 are slidable around the periphery of the supporting ring H), the retracting elements 26 may be adjusted laterally in order to afford the desired support to the organs or to the edges of the open wound.
It will be understood that any of the retracting elements 26 may be applied, removed, or adjusted at any time during the course of the operation, and if desired, may be replaced with retracting elements which are longer or shorter, or of a different type, thus filling the needs of the moment.
It will be noted that the invention herein disclosed provides a means whereby each of the retracting elements may be independently adjusted and held in a definite position withv relation to the operation table. Further, the retracting elements cannot accidentally change their positions and the force exerted by one retracting element will be independent of the force exerted by any of the other retracting elements. Moreover, the patient will be spared the shocks which might be caused by accidental movement of a retractor in contact with the peritoneum which frequently occurred when the retracting elements were held by an assistant.
One advantage of the invention herein disclosed is that each of the retracting elements may have a substantially universal adjustment with respect to the operating table, while avoiding any changes of position or adjustment excepting as desired by the surgeon.
When the retractor is no longer needed, it may be readily removed from the clamps 23, 24 after first loosening the thumbscrews 25. The side arms |2 may then be swung about the crosspins I6 and folded under the supporting ring |0 so that the retractor will have a compact form which may be readily inserted into an autoclave for sterilization.
Inasmuch as the retractor may be compactly folded, it will ordinarily be unnecessary to detach the side arms I I, I2 from the supporting ring H1, or to loosen the thumbscrews l9 excepting for purposes of adjustment. While there has been disclosed in this specification one form in which the invention may be embodied, it is to be understood that this form is shown for the purpose of illustration only, and that the invention is not to be limited to the specific disclosure but may be modified and embodied in various other forms without departing from its spirit. In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.
Having thus fully described the invention, what is claimed as new and for which it is desired to secure Letters Patent, is:
1. In a surgical retractor, a continuous, integral, circular supporting ring, a plurality of retracting elements movably mounted upon said ring, a pair of side arms attached by fiexible joints to opposite portions of said ring, anda pair of adjustable clamps on said side arms for securing said side arms to a support.
2. The invention as defined in claim 1, in which said side arms are curved outwardly and downwardly from said supporting ring and are vertically slidable in said clamps, whereby said ring may be adjusted by vertical sliding movements of said arms in said clamps.
3. The invention as defined in claim 1, wherein said side arms are flexibly attached to said supporting ring by devices which comprise crosspins secured in transverse positions in the end portions of the respective arms.
4. The invention as defined in claim 1, wherein said side arms are attached to said supporting ring by pivot pins swingably supported upon end portions of the respective side arms, and means releasably securing said pivot pins to said supporting ring in positions extending radially of said ring.
5. In a surgical retractor, a circular supporting ring, means detachably mounting said ring upon the side rails of an operating table, a plurality of angular retracting elements, each having a longitudinally slotted horizontal upper section, and a depending curved section for engaging the internal organs or sides of the incision made in the patient, a bracket having a horizontal slot embracing said ring, said bracket having a vertical threaded stud extending upwardly through the slot in the upper section of said retracting element, and a thumb nut on said stud for clamp-- ing said retracting element and said bracket in radial or circumferentially adjusted position upon said ring.
6. The invention as defined in claim 5 in which said bracket has an upstanding locking pin spaced from said stud and located in the slot of said upper section of the retracting element to prevent undesirable rotation of said bracket about a vertical axis.
DAVID P. SMITH.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,747,799 Straus Feb. 18, 1930 1,839,726 Arnold Jan. 5, 1932 OTHER REFERENCES
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US174799 *||26 Feb 1876||14 Mar 1876||Improvement in gas-lighting apparatus|
|US1839726 *||1 Aug 1930||5 Jan 1932||Arnold Hubert R||Circular retractor|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2893378 *||26 Jul 1956||7 Jul 1959||Lee Cooper Robert||Surgical retractor apparatus|
|US2969059 *||25 Nov 1958||24 Jan 1961||Meek Cicero Parker||Mouth gag|
|US3040739 *||17 Jul 1959||26 Jun 1962||Grieshaber Herman R||Surgical retractor|
|US3394700 *||7 Feb 1966||30 Jul 1968||Hideo Yamamoto||Circular surgical retractor apparatus|
|US4099521 *||16 Jun 1975||11 Jul 1978||Nestor Engineering Associates, Inc.||Surgical retractor adjustable mounting apparatus|
|US4254763 *||7 Jun 1979||10 Mar 1981||Codman & Shurtleff, Inc.||Surgical retractor assembly|
|US4457300 *||7 Jun 1982||3 Jul 1984||Ohio Medical Instrument Co., Inc.||Surgical retractor|
|US4617916 *||8 Nov 1984||21 Oct 1986||Minnesota Scientific, Inc.||Retractor apparatus|
|US4718151 *||2 Jun 1986||12 Jan 1988||Minnesota Scientific, Inc.||Retractor apparatus|
|US4805599 *||25 Jun 1987||21 Feb 1989||Cedar Surgical, Inc.||Framework for supporting surgical instruments at a surgical wound|
|US4949707 *||11 Jan 1988||21 Aug 1990||Minnesota Scientific, Inc.||Retractor apparatus|
|US5284129 *||28 Aug 1992||8 Feb 1994||Codman & Shurtleff, Inc.||Swivel ring surgical retractor|
|US5704900 *||20 Oct 1995||6 Jan 1998||Minnesota Scientific, Inc.||Method and apparatus for peritoneal distension|
|US5947896 *||20 Sep 1996||7 Sep 1999||United States Surgical Corporation||Heart stabilizer apparatus and method for use|
|US5967973 *||14 Feb 1997||19 Oct 1999||United States Surgical||Surgical retractor and method of surgery|
|US5967974 *||19 Dec 1997||19 Oct 1999||United States Surgical Corporation||Surgical retractor|
|US6030340 *||13 Jul 1998||29 Feb 2000||United States Surgical||Surgical retractor|
|US6071235 *||24 Jul 1997||6 Jun 2000||Genzyme Corporation||Coronary stabilizing retractor with occluding means|
|US6102853 *||22 Jan 1999||15 Aug 2000||United States Surgical Corporation||Surgical instrument|
|US6200263||22 Jan 1999||13 Mar 2001||United States Surgical Corporation||Surgical instrument holder|
|US6213940||2 Sep 1999||10 Apr 2001||United States Surgical Corporation||Surgical retractor including coil spring suture mount|
|US6264605||20 Jun 2000||24 Jul 2001||United States Surgical Corporation||Surgical instrument|
|US6306085||13 Oct 1999||23 Oct 2001||United States Surgical Corporation||Surgical apparatus and method|
|US6475142||12 Nov 1999||5 Nov 2002||Genzyme Corporation||Curved stabilization arm for use with surgical retractor and tissue stabilization device and methods related thereto|
|US6537212||7 Feb 2001||25 Mar 2003||United States Surgical Corporation||Surgical retractor|
|US6565508||13 Jul 2001||20 May 2003||United States Surgical Corporation||Surgical instrument|
|US6599240||20 Dec 2000||29 Jul 2003||Genzyme Corporation||Segmented arm assembly for use with a surgical retractor and instruments and methods related thereto|
|US6610009||7 Feb 2001||26 Aug 2003||United States Surgical Corporation||Surgical instrument holder|
|US6709389||22 Oct 2001||23 Mar 2004||United States Surgical Corporation||Surgical apparatus and method|
|US6740029||5 Sep 2002||25 May 2004||Chase Medical, L.P.||Device and method for isolating a surface of a beating heart during surgery|
|US6887198 *||21 May 2002||3 May 2005||Burns P. Phillips||Gooseneck surgical retractor positioner and method of its use|
|US7056321||25 Oct 2002||6 Jun 2006||Endius, Incorporated||Method of securing vertebrae|
|US7137949||26 Mar 2003||21 Nov 2006||United States Surgical Corporation||Surgical instrument|
|US7144393||10 Feb 2003||5 Dec 2006||Dipoto Gene P||Structure for receiving surgical instruments|
|US7156806||18 Aug 2003||2 Jan 2007||Minnesota Scientific, Inc.||Stabilized table rail clamp|
|US7179225||26 Aug 2004||20 Feb 2007||Shluzas Alan E||Access systems and methods for minimally invasive surgery|
|US7182730 *||14 Mar 2005||27 Feb 2007||Fehling Ag||Anal retractor|
|US7226451||2 Oct 2003||5 Jun 2007||Shluzas Alan E||Minimally invasive access device and method|
|US7294104||26 Aug 2003||13 Nov 2007||United States Surgical Corporation||Surgical instrument holder|
|US7645232||12 Jan 2010||Zimmer Spine, Inc.||Access device for minimally invasive surgery|
|US7691120||6 Apr 2010||Zimmer Spine, Inc.||Access systems and methods for minimally invasive surgery|
|US7699877||5 Aug 2004||20 Apr 2010||Zimmer Spine, Inc.||Method of securing vertebrae|
|US7722530||15 Oct 2003||25 May 2010||Zimmer Spine, Inc.||Method of securing vertebrae|
|US7736305||25 Oct 2004||15 Jun 2010||Zimmer Spine, Inc.||Adjustable height access device for treating the spine of a patient|
|US7744530||29 Jun 2010||Tyco Healthcare Group Lp||Surgical instrument holder|
|US7766930||3 Aug 2010||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US7836532||23 Nov 2010||Pro Med Instruments Gmbh||Method and apparatus for attaching accessories to a surgical fixture|
|US7850695||14 Dec 2010||Zimmer Spine, Inc.||Method of securing vertebrae|
|US7976464||12 Jul 2011||Zimmer Spine, Inc.||Access systems and methods for minimally invasive surgery|
|US7985218||5 Dec 2006||26 Jul 2011||Zimmer Spine, Inc.||Structure for receiving surgical instruments|
|US7985247||9 Sep 2003||26 Jul 2011||Zimmer Spine, Inc.||Methods and apparatuses for treating the spine through an access device|
|US8007492||26 Oct 2004||30 Aug 2011||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US8192463||5 Jun 2012||Mcloughlin Joseph||Surgical retractor and related methods|
|US8277486||2 Oct 2012||Zimmer Spine, Inc.||System for performing a procedure at a spinal location|
|US8523770||2 May 2012||3 Sep 2013||Joseph McLoughlin||Surgical retractor and related methods|
|US8540746||14 Sep 2012||24 Sep 2013||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US8556808 *||15 Jan 2013||15 Oct 2013||Nuvasive, Inc.||Surgical access system and related methods|
|US8628469||30 Jul 2013||14 Jan 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8663100||4 Sep 2013||4 Mar 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8672840||8 May 2012||18 Mar 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8679006||1 Feb 2013||25 Mar 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8696559||1 Feb 2013||15 Apr 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8708899||1 Feb 2013||29 Apr 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8738123||11 Feb 2013||27 May 2014||Nuvasive, Inc.||System and methods for performing surgical procedures and assessments|
|US8747307||4 Sep 2013||10 Jun 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8753270||31 Jul 2013||17 Jun 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8753271||13 Jan 2014||17 Jun 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8764649||11 Oct 2013||1 Jul 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8768450||8 Feb 2013||1 Jul 2014||Nuvasive, Inc.||System and methods for performing surgical procedures and assessments|
|US8777997||7 Sep 2012||15 Jul 2014||Zimmer Spine, Inc.||Method for securing vertebrae|
|US8790406||2 Apr 2012||29 Jul 2014||William D. Smith||Systems and methods for performing spine surgery|
|US8812116||7 May 2012||19 Aug 2014||Nuvasive, Inc.||System and methods for determining nerve proximity, direction, and pathology during surgery|
|US8821396||9 Jun 2014||2 Sep 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8828033 *||18 Apr 2011||9 Sep 2014||J. Donald Hill||Methods, systems, and apparatus for performing minimally invasive coronary artery bypass graft surgery|
|US8844536||24 Aug 2011||30 Sep 2014||Pro Med Instruments Gmbh||Locking apparatus for a head fixation device|
|US8864785||10 Sep 2012||21 Oct 2014||Zimmer Spine, Inc.||Method for securing vertebrae|
|US8915846||18 Apr 2013||23 Dec 2014||Nuvasive, Inc.||Surgical access system and related methods|
|US8942801||9 Jun 2014||27 Jan 2015||Nuvasive, Inc.||Surgical access system and related methods|
|US8945004||1 Aug 2014||3 Feb 2015||Nuvasive, Inc.||Surgical access system and related methods|
|US8956283||3 Mar 2014||17 Feb 2015||Nuvasive, Inc.||Surgical access system and related methods|
|US8977352||15 May 2014||10 Mar 2015||Nuvasive, Inc.||Systems and methods for performing surgical procedures and assessments|
|US9014776||16 Jul 2013||21 Apr 2015||Nuvasive, Inc.||Surgical access and nerve surveillance|
|US9037250||14 Feb 2013||19 May 2015||Nuvasive, Inc.||System and methods for determining nerve proximity, direction and pathology during surgery|
|US9101353||15 Sep 2004||11 Aug 2015||Zimmer Spine, Inc.||Method of securing vertebrae|
|US9161745 *||17 Oct 2013||20 Oct 2015||Mark A. Dodson||Modular retractor and related method|
|US9198765||31 Oct 2012||1 Dec 2015||Nuvasive, Inc.||Expandable spinal fusion implants and related methods|
|US9204871||16 Jan 2015||8 Dec 2015||Nuvasive, Inc.||Surgical access system and related methods|
|US9216126||28 Aug 2013||22 Dec 2015||Pro Med Instruments Gmbh||Table adapter with joint assembly|
|US9265493||16 Jan 2015||23 Feb 2016||Nuvasive, Inc.||Surgical access system and related methods|
|US9301743||27 May 2014||5 Apr 2016||Nuvasive, Inc.||Surgical access system and related methods|
|US9314152||29 Oct 2013||19 Apr 2016||Nuvasive, Inc.||Surgical access system and related methods|
|US9402692||2 Oct 2012||2 Aug 2016||Pro Med Instruments Gmbh||Head fixation device and apparatus for securing components thereto|
|US20030009081 *||5 Sep 2002||9 Jan 2003||Chase Medical, Lp||Device and method for isolating a surface of a beating heart during surgery|
|US20030073998 *||25 Oct 2002||17 Apr 2003||Endius Incorporated||Method of securing vertebrae|
|US20030153927 *||10 Feb 2003||14 Aug 2003||Endius Incorporated||Structure for receiving surgical instruments|
|US20030216619 *||26 Mar 2003||20 Nov 2003||Paul Scirica||Surgical instrument|
|US20040073091 *||18 Aug 2003||15 Apr 2004||Minnesota Scientific, Inc.||Stabilized table rail clamp|
|US20040082960 *||20 Oct 2003||29 Apr 2004||Davison Thomas W.||Method of securing vertebrae|
|US20040127773 *||31 Dec 2002||1 Jul 2004||Ethicon, Inc.||Curved rack retractor|
|US20040186353 *||9 Aug 2002||23 Sep 2004||Palermo Thomas J||Vascular retractor and methods of using same|
|US20040215064 *||26 Aug 2003||28 Oct 2004||Person Wayne C.||Surgical instrument holder|
|US20040230100 *||13 May 2004||18 Nov 2004||Shluzas Alan E.||Access device for minimally invasive surgery|
|US20040236317 *||15 Oct 2003||25 Nov 2004||Davison Thomas W.||Method of securing vertebrae|
|US20050021030 *||12 Aug 2004||27 Jan 2005||Endius Incorporated||Method of securing vertebrae|
|US20050033297 *||5 Aug 2004||10 Feb 2005||Davison Thomas W.||Method of securing vertebrae|
|US20050075540 *||2 Oct 2003||7 Apr 2005||Shluzas Alan E.||Minimally invasive access device and method|
|US20050084355 *||17 Oct 2003||21 Apr 2005||Don Zoran||Apparatus and method for damping vibration in a machine tool|
|US20050113833 *||15 Sep 2004||26 May 2005||Davison Thomas W.||Method of securing vertebrae|
|US20050149106 *||26 Oct 2004||7 Jul 2005||Dipoto Gene P.||Cannula for receiving surgical instruments|
|US20050203347 *||14 Mar 2005||15 Sep 2005||Guido Fehling||Anal retractor|
|US20050245942 *||25 Oct 2004||3 Nov 2005||Dipoto Gene P||Adjustable height access device for treating the spine of a patient|
|US20050251192 *||30 Mar 2005||10 Nov 2005||Shluzas Alan E||Access device having discrete visualization locations|
|US20050273131 *||26 Aug 2004||8 Dec 2005||Shluzas Alan E||Access systems and methods for minimally invasive surgery|
|US20050273132 *||26 Aug 2004||8 Dec 2005||Shluzas Alan E||Access systems and methods for minimally invasive surgery|
|US20050273133 *||26 Aug 2004||8 Dec 2005||Shluzas Alan E||Access systems and methods for minimally invasive surgery|
|US20060069404 *||30 Sep 2005||30 Mar 2006||Shluzas Alan E||Access device having discrete visualization locations|
|US20060084900 *||14 Oct 2005||20 Apr 2006||Schule Edgar F||Method and apparatus for attaching accessories to a surgical fixture|
|US20060195017 *||22 Nov 2005||31 Aug 2006||Shluzas Alan E||Expandable device for providing access to the spine|
|US20060271057 *||20 Jul 2006||30 Nov 2006||Shluzas Alan E||Minimally invasive access device and method|
|US20070142857 *||5 Dec 2006||21 Jun 2007||Dipoto Gene P||Structure for receiving surgical instruments|
|US20120065475 *||18 Apr 2011||15 Mar 2012||J. Donald Hill||Methods, systems, and apparatus for performing minimally invasive coronary artery bypass graft surgery|
|US20130131456 *||15 Jan 2013||23 May 2013||Nuvasive, Inc.||Surgical Access System and Related Methods|
|US20140073857 *||17 Oct 2013||13 Mar 2014||Mark A. Dodson||Modular Retractor And Related Method|
|US20140114139 *||18 Sep 2013||24 Apr 2014||Blackstone Medical, Inc.||Retractor device and method|
|USD737437||5 Aug 2013||25 Aug 2015||Joseph McLoughlin||Surgical retractor|
|DE3021194A1 *||4 Jun 1980||18 Dec 1980||Codman & Shurtleff||Chirurgische retraktoranordnung|
|DE4118220C1 *||4 Jun 1991||5 Nov 1992||Ralf Cand.Med. 4350 Recklinghausen De Herwig||Surgical retractor with annular frame - which has round cross=section and fastening clamps, each with mating semi-circular recess|
|DE4331277C1 *||15 Sep 1993||23 Feb 1995||Fuerniss Gmbh||Surgical retraction device|
|EP0875205A1 *||30 Apr 1998||4 Nov 1998||United States Surgical Corporation||Surgical retractor|
|EP0980674A2 *||13 Jul 1999||23 Feb 2000||United States Surgical Corporation||surgical retractor|
|EP1481639A1 *||13 Jul 1999||1 Dec 2004||United States Surgical Corporation||Surgical retractor|
|U.S. Classification||600/228, 600/234|