US3196865A - Self-retaining retractor - Google Patents
Self-retaining retractor Download PDFInfo
- Publication number
- US3196865A US3196865A US256636A US25663663A US3196865A US 3196865 A US3196865 A US 3196865A US 256636 A US256636 A US 256636A US 25663663 A US25663663 A US 25663663A US 3196865 A US3196865 A US 3196865A
- Authority
- US
- United States
- Prior art keywords
- retractor
- arm
- self
- retaining
- turret
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
Definitions
- This invention relates to a surgical appliance and more particularly to a self-retaining retractor.
- retractor In many surgical procedures, there arises a need for a retractor to draw back the muscular tissue defining an incision to enable a surgeon to reach an internal body organ.
- the most widely used type of retractor is a hand retractor manipulated by a surgeons assistant who, typically, is also a skilled surgeon. Hand retraction makes it virtually impossible to utilize the full capabilities of the skilled assistant. It is a tedious task and frequently gives rise to interference between the person handling the retractor and the surgeon.
- Prior art also discloses various designs of self-retaining retractors which are mounted to the operating table for the purpose of performing a retraction procedure without the constant attention of an attendant.
- Typical prior art designs were not satsifactory for one reason or another. Generally, they were awkward to manipulate and awkward in their design. None of the prior art devices is in widespread use today.
- Another object of the invention is to provide a selfretaining retractor which includes means for mounting the retractor in an adjusted position.
- a self-retaining retractor comprises an axially extendible and retractable arm terminated in a hinged retractor. It also includes means joined to the retractor which respond to the axial movement of the arm for pivoting the retractor.
- a support means for the arm which includes means for adjusting the elevation and the horizontal position of the arm, is also provided.
- the self-retaining retractor also includes means for adjusting the axial position of the arm and for maintaining it fixed in the adjusted position.
- a simple mounting means is provided for securing the support means to a surgical table.
- FIGURE 1 is a side view of a self-retaining retractor embodying the principles of the present invention
- FIGURE 2 is a rear side view of the FIGURE 1 embodiment
- FIGURE 3 is a fragmentary View showing the front portion of the arm
- FIGURE 4 is a fragmentary bottom view showing the horizontal adjusting means
- FIGURE 5 is a sectional view taken along line 55;
- FIGURE 6 is an enlarged view of the adjusting means.
- FIG. 1 of the drawings there is depicted a side view of a self-retaining retractor generally designated 10.
- the self-retaining retractor 10 includes a vertically extending rod 11 with an enlarged diameter disc 12 spaced from its upper end 13.
- the rod 11 also includes a rack 14 extending axially along the surface thereof.
- the disc 12 has an arcuate slot i6 defined therein adjacent to its circumference as depicted in FIGURE 4.
- the self-retaining retractor 10 also includes a turret 17 comprising a block of metal. Defined within the turret 17 are three mutually orthogonal passages 18, 19, and 21 (see FIGURES 1, 2, and 5, respectively). As seen in FIGURE 1, the passage 18 is centrally located in the bottom of block 17 for receiving the end 13 of the rod 14.
- An arm 22 is shaped to conform to passage 19 and inserted in passage 19.
- the arm 22 also includes a rack 23 secured to its surface and a handle 20 at one end thereof.
- the cantilevered end of arm 22 includes a hinge 24 from which extends a bayonet receptacle 26 (see FIG- URE 3) in which is inserted, by means of a complementary bayonet fitting, a retractor 28.
- the retractor Z8 is conventionally shaped and is fabricated in this instance of a suitable metal such as aluminum or stainless steel.
- the retractor may be formed from a light transmitting plastic such as Lucite if the retractor 28 is intended to supply light to the inside of the cavity.
- Extending from the upper surface 29 of the retractor 28 is a bifurcated support 31 which includes in axial alignment a clearance hole and a threaded hole (not shown) through which a bolt 30 is threaded.
- a pinion 34 is inserted in passage 21 and engages the rack 23.
- Extending through and from the pinion 34 is a shaft 36 (see FIGURES 2, 5, and 6) which is terminated in an enlarged diameter head 37 (see FIGURE 2).
- a capstan-like knob 38 is slidably mounted on the shaft 36.
- the shaft 36 includes a transverse pin 39 (see FIGURES 2 and 6) passing through it at a predetermined point along its length.
- a surface 41 (see FIGURE 6) on knob 38 adjacent to the pin 39 includes a complementary recess 40 designed to slide over the pin 39.
- Adjacent to surface 41 on the surface of knob 38 is a circumferentially raised ratchet wheel 42 formed by a plurality of triangularly shaped teeth 43.
- knob 38 slides over the shaft 36 between two extreme positions, the first defined by the enlarged diameter head 37 and the other by the pin seated in the complementary recess 40.
- a pawl 44 containing a point 46 adapted to engage the teeth 43 is secured to the turret 17.
- the pawl 44 is spaced from the turret 17 to engage the teeth 43 when the knob 38 engages the teeth 43.
- the end 47 diametrically opposite from the point 46 is weighted to cause the point 46 to bear against the teeth 43 by the force of gravity.
- the self-retaining retractor 10 also includes a slotted bar 48 which is secured to the support 31 at one end by means of bolt 30 and slidably mounted to an extension 49 of turret 17 by means of a pin passing through a slot 52 and the extension 49 into a knob 53.
- a head 54, on the pin can be made to bear against the bar to prevent relative movement between the extension 49 and the bar 48.
- the self-retaining retractor includes means 55 adapted to mount the self-retaining retractor 10 to the horizonttal bar 56 of a surgical table.
- the mounting means 55 includes a passage 57 dimensioned to conform with the rod 11 and rack 14 inserted therein.
- a spring-loaded latch 58 includes a geared portion 59 position in the mounting means 55, so that it normally engages the rack 14 for preventing relative movement between the rack 14 and the rod 11 attached thereto, and the mounting means 55.
- the geared portion 59 is moved laterally when the latch 58 is depressed allowing rod 11 and rack 14 to move through the passage 57.
- the mounting means 55 is secured to the horizontal bar 56 by removing a cap 61 and inserting the horizontal bar 56 in the channel 62.
- the movement between the mounting means 55 and the horizontal bar 56 may be prevented by actuating the offset cam handle 63 bringing a portion of the surface of the cam handle 63 into contact with the horizontal bar 56.
- the disc 12 includes an arcuate slot 64.
- a hand manipulatable bolt 65 is in- 'to prevent relative movement between the turret 17 and the disc 12.
- the operation of the self-retaining retractor 10 is as follows:
- the springloaded latch 58 is depressed to allow the turret 17 to be moved vertically. If necessary, the bolt 65 may be loosen ed to permit horizontal alignment of the retractor 28 by sliding the turret 17 on the disc 12. When the retractor is in the proper position, the bolt 65 is tightened preventing further rotation of the turret 17. Knob 38 is positioned against the head 37 disengaging the pawl 44 from the ratchet wheel 42, enabling the coarse adjustment of arm 22 by means of handle 20. By means of the combination of adjustments descirbed above, the retractor 28 is inserted in an incision.
- the knob 53 is tightened to bring the head 54 into contact with the bar 52 to prevent relative movement therebetween. Additionally, the knob 38 is moved toward the pin 39 until the recess 40 receives the pin 39. -When the knob 38 is rotated in a clockwise direction, the pinion 34 rotates on the rack 23 retracting the arm 22. Because the bar 50 cannot move relative to the turret 17, the retractor 28 pivots downwardly as the arm 22 is retracted as shown in phantom in FIGURE 1. Thus, in the process of retracting the retractor 28, an outward and downward force is brought to bear on the incision wall insuring a firm and reliable grip on the wall. The retractor is maintained in the adjusted position by pawl 44 engaging teeth 43. The adjustment will remain fixed unless some overt action is taken by the operating surgeon to readjust the position of the retractor 28.
- the self-retaining retractor 10 maybe sterilized by simply removing the bolt 65 separating the supporting rod 11 from the turret 1'7 separating the self-retaining retractor 10 into two elongated members which fit easily into any one of the widely available sterilizers.
- the self-retaining retractor 10 may be operated simply. It is quite versatile since it may be adjusted in height and rotated horizontally to accommodate the nature of the incision made by the operating surgeon.
- a self-retaining retractor assembly comprising:
- (0) support means movably supporting said arm, including means for adjusting the elevation and the horizontal position of said arm;
- a self-retaining retractor assembly as described in claim 1 in which said means for pivoting said retractor comprises a bar having an adjustable length pivotally connected to said retractor at one end and releasably secured to said support means at a point remote from said one end.
- a self-retaining retractor assembly as described in claim 1 in which said means for adjusting the longitudinal position of said arm comprises a rack and pinion connected to said arm and said support means respectively.
- a self-retaining retractor assembly as described in claim 4 which includes in addition a ratchet wheel and pawl operatively connected to said pinion and said support means, respectively, for permitting and preventing coarse adjustment of said longitudinal position of said arm.
- a self-retaining retractor assembly comprising:
- support means for said turret including means for adjusting and maintaining said turret in a rotated position
- (g) means slidably engaging said support means adapted to mount said support means to a surgical table.
- a self-retaining retractor assembly comprising:
- a turret comprising first, second, and third mutually transverse passages, said second passage being dimensioned to receive said one end of said rod;
- a knob mounted on said shaft having a fiat surface containing a recess shape to complement said pin and adapted to engage said pin, said knob including a circumferential ratchet wheel;
- clamp means adapted to connect to a surgical table having a central passage through which said rod and first rack pass;
- a self-retaining retractor assembly having support means, positioning means movably mounted in said support means terminated in pivot means and a retractor connected to said pivot means, an improvement comprising means joining said retractor and said support means responsive to the movement of said positioning means for rotating said retractor about said pivot joint.
- a self-retaining retractor assembly including an arm terminated at one end by a pivot means, a retractor joined to said arm by said pivot means, support means slidably engaging said arm for positioning said retractor in an incision, an improvement comprising means interconnecting said retractor and said support means responsive to the sliding movement of said arm to rotate said retractor about said pivot means.
- said pivoting means comprising a bar pivotally secured to said retractor at one end and releasably secured to said support means at a point remote from said one end.
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US256636A US3196865A (en) | 1963-02-06 | 1963-02-06 | Self-retaining retractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US256636A US3196865A (en) | 1963-02-06 | 1963-02-06 | Self-retaining retractor |
Publications (1)
Publication Number | Publication Date |
---|---|
US3196865A true US3196865A (en) | 1965-07-27 |
Family
ID=22972976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US256636A Expired - Lifetime US3196865A (en) | 1963-02-06 | 1963-02-06 | Self-retaining retractor |
Country Status (1)
Country | Link |
---|---|
US (1) | US3196865A (en) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299883A (en) * | 1963-11-08 | 1967-01-24 | Engelhard Hanovia Inc | Gynecologic instrument |
US4156424A (en) * | 1978-05-01 | 1979-05-29 | Burgin Kermit H | Locking adjustable speculum |
US4747394A (en) * | 1986-10-08 | 1988-05-31 | Watanabe Orthopedic Systems, Inc. | Spinal retractor |
US4934352A (en) * | 1982-10-22 | 1990-06-19 | Sullivan Jr Eugene M | Surgical retractor handle construction |
US5000163A (en) * | 1987-06-25 | 1991-03-19 | Surgical Dynamics, Inc. | Retraction device |
US5065739A (en) * | 1989-08-24 | 1991-11-19 | Forrest William J | Retractor support assembly |
US5167223A (en) * | 1989-09-08 | 1992-12-01 | Tibor Koros | Heart valve retractor and sternum spreader surgical instrument |
US5379758A (en) * | 1993-03-23 | 1995-01-10 | Snyder; Samuel J. | Hand held surgical retractor |
US5409496A (en) * | 1993-08-16 | 1995-04-25 | Blairden Precision Instruments | Uterine manipulator with locking mechanism |
US5415159A (en) * | 1993-08-18 | 1995-05-16 | Ethicon, Inc. | Support structure for abdominal lift |
US5520698A (en) * | 1994-10-19 | 1996-05-28 | Blairden Precision Instruments, Inc. | Simplified total laparoscopic hysterectomy method employing colpotomy incisions |
US5540700A (en) * | 1993-08-16 | 1996-07-30 | The Cooper Companies | Uterine manipulator |
US5634882A (en) * | 1992-05-07 | 1997-06-03 | Gagner; Michel | Abdomen suspending device |
US5643285A (en) * | 1994-10-18 | 1997-07-01 | Blairden Precision Instruments, Inc. | Vaginal extender for colpotomy surgery |
US5704900A (en) * | 1995-10-20 | 1998-01-06 | Minnesota Scientific, Inc. | Method and apparatus for peritoneal distension |
US5846187A (en) * | 1996-09-13 | 1998-12-08 | Genzyme Corporation | Redo sternotomy retractor |
US5891018A (en) * | 1997-09-19 | 1999-04-06 | Genzyme Corporation | Ball joint retractor |
US5902233A (en) * | 1996-12-13 | 1999-05-11 | Thompson Surgical Instruments, Inc. | Angling surgical retractor apparatus and method of retracting anatomy |
DE10341561A1 (en) * | 2003-09-09 | 2005-04-14 | Wisap Gesellschaft für wissenschaftlichen Apparatebau mbH | Surgical uterus manipulator has a grip that slides between a hold position and a release position |
US20080228191A1 (en) * | 2007-03-13 | 2008-09-18 | Howmedica Osteonics Corp. | Femoral elevator |
US20080262494A1 (en) * | 2007-04-17 | 2008-10-23 | Warsaw Orthopedic, Inc. | Spinal tool |
US20100106163A1 (en) * | 2008-10-24 | 2010-04-29 | Coopersurgical, Inc. | Uterine Manipulator Assemblies and Related Components and Methods |
US20100305578A1 (en) * | 2009-05-27 | 2010-12-02 | Coopersurgical, Inc. | Uterine Manipulators and Related Components and Methods |
US8439850B2 (en) | 2010-11-01 | 2013-05-14 | Coopersurgical, Inc. | Cervical sizing devices and related kits and methods |
US8939988B2 (en) | 2010-11-01 | 2015-01-27 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
US20150057501A1 (en) * | 2012-03-29 | 2015-02-26 | Lapspace Medical Ltd. | Tissue retractor |
US9636144B2 (en) | 2014-10-09 | 2017-05-02 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
US10932819B2 (en) | 2018-04-18 | 2021-03-02 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB168216A (en) * | 1920-07-07 | 1921-09-01 | William J Cameron | Improvements in and relating to gagging-appliances and tongue depressors |
US1587897A (en) * | 1925-07-27 | 1926-06-08 | Will J Cameron | Speculum |
US1747799A (en) * | 1928-09-14 | 1930-02-18 | Sharp & Smith | Retractor |
US2670732A (en) * | 1952-08-11 | 1954-03-02 | Ole A Nelson | Surgical retractor |
FR1235135A (en) * | 1959-09-14 | 1960-10-26 | Articulated mechanical support, more specifically designed for the correct maintenance of retractors used in surgery |
-
1963
- 1963-02-06 US US256636A patent/US3196865A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB168216A (en) * | 1920-07-07 | 1921-09-01 | William J Cameron | Improvements in and relating to gagging-appliances and tongue depressors |
US1587897A (en) * | 1925-07-27 | 1926-06-08 | Will J Cameron | Speculum |
US1747799A (en) * | 1928-09-14 | 1930-02-18 | Sharp & Smith | Retractor |
US2670732A (en) * | 1952-08-11 | 1954-03-02 | Ole A Nelson | Surgical retractor |
FR1235135A (en) * | 1959-09-14 | 1960-10-26 | Articulated mechanical support, more specifically designed for the correct maintenance of retractors used in surgery |
Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299883A (en) * | 1963-11-08 | 1967-01-24 | Engelhard Hanovia Inc | Gynecologic instrument |
US4156424A (en) * | 1978-05-01 | 1979-05-29 | Burgin Kermit H | Locking adjustable speculum |
US4934352A (en) * | 1982-10-22 | 1990-06-19 | Sullivan Jr Eugene M | Surgical retractor handle construction |
US4747394A (en) * | 1986-10-08 | 1988-05-31 | Watanabe Orthopedic Systems, Inc. | Spinal retractor |
US5000163A (en) * | 1987-06-25 | 1991-03-19 | Surgical Dynamics, Inc. | Retraction device |
US5065739A (en) * | 1989-08-24 | 1991-11-19 | Forrest William J | Retractor support assembly |
US5167223A (en) * | 1989-09-08 | 1992-12-01 | Tibor Koros | Heart valve retractor and sternum spreader surgical instrument |
US5634882A (en) * | 1992-05-07 | 1997-06-03 | Gagner; Michel | Abdomen suspending device |
US5379758A (en) * | 1993-03-23 | 1995-01-10 | Snyder; Samuel J. | Hand held surgical retractor |
US5409496A (en) * | 1993-08-16 | 1995-04-25 | Blairden Precision Instruments | Uterine manipulator with locking mechanism |
US5540700A (en) * | 1993-08-16 | 1996-07-30 | The Cooper Companies | Uterine manipulator |
US5415159A (en) * | 1993-08-18 | 1995-05-16 | Ethicon, Inc. | Support structure for abdominal lift |
US5643285A (en) * | 1994-10-18 | 1997-07-01 | Blairden Precision Instruments, Inc. | Vaginal extender for colpotomy surgery |
US5520698A (en) * | 1994-10-19 | 1996-05-28 | Blairden Precision Instruments, Inc. | Simplified total laparoscopic hysterectomy method employing colpotomy incisions |
US5704900A (en) * | 1995-10-20 | 1998-01-06 | Minnesota Scientific, Inc. | Method and apparatus for peritoneal distension |
US5846187A (en) * | 1996-09-13 | 1998-12-08 | Genzyme Corporation | Redo sternotomy retractor |
US5846191A (en) * | 1996-09-13 | 1998-12-08 | Genzyme Corporation | Redo sternotomy retractor |
US5902233A (en) * | 1996-12-13 | 1999-05-11 | Thompson Surgical Instruments, Inc. | Angling surgical retractor apparatus and method of retracting anatomy |
US5904650A (en) * | 1997-09-19 | 1999-05-18 | Genzyme Corporation | Ball joint retractor |
US5891018A (en) * | 1997-09-19 | 1999-04-06 | Genzyme Corporation | Ball joint retractor |
DE10341561B4 (en) * | 2003-09-09 | 2011-06-16 | Wisap Gesellschaft für wissenschaftlichen Apparatebau mbH | Medical device |
DE10341561A1 (en) * | 2003-09-09 | 2005-04-14 | Wisap Gesellschaft für wissenschaftlichen Apparatebau mbH | Surgical uterus manipulator has a grip that slides between a hold position and a release position |
US20080228191A1 (en) * | 2007-03-13 | 2008-09-18 | Howmedica Osteonics Corp. | Femoral elevator |
US20080262494A1 (en) * | 2007-04-17 | 2008-10-23 | Warsaw Orthopedic, Inc. | Spinal tool |
US8545513B2 (en) | 2008-10-24 | 2013-10-01 | Coopersurgical, Inc. | Uterine manipulator assemblies and related components and methods |
US8740916B2 (en) | 2008-10-24 | 2014-06-03 | Coopersurgical, Inc. | Uterine manipulator assemblies and related components and methods |
US20100106163A1 (en) * | 2008-10-24 | 2010-04-29 | Coopersurgical, Inc. | Uterine Manipulator Assemblies and Related Components and Methods |
US8292901B2 (en) | 2009-05-27 | 2012-10-23 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
US20100305578A1 (en) * | 2009-05-27 | 2010-12-02 | Coopersurgical, Inc. | Uterine Manipulators and Related Components and Methods |
US8939988B2 (en) | 2010-11-01 | 2015-01-27 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
US8876736B2 (en) | 2010-11-01 | 2014-11-04 | Coopersurgical, Inc. | Cervical sizing devices and related kits and methods |
US8439850B2 (en) | 2010-11-01 | 2013-05-14 | Coopersurgical, Inc. | Cervical sizing devices and related kits and methods |
US20150057501A1 (en) * | 2012-03-29 | 2015-02-26 | Lapspace Medical Ltd. | Tissue retractor |
US9918708B2 (en) * | 2012-03-29 | 2018-03-20 | Lapspace Medical Ltd. | Tissue retractor |
US9636144B2 (en) | 2014-10-09 | 2017-05-02 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
US9649130B2 (en) | 2014-10-09 | 2017-05-16 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
US9743956B2 (en) | 2014-10-09 | 2017-08-29 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
US9788859B2 (en) | 2014-10-09 | 2017-10-17 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
US10932819B2 (en) | 2018-04-18 | 2021-03-02 | Coopersurgical, Inc. | Uterine manipulators and related components and methods |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3196865A (en) | Self-retaining retractor | |
US5369827A (en) | Medical stirrups | |
US4156424A (en) | Locking adjustable speculum | |
US6210325B1 (en) | Cam-activated adjustable arm and illuminated tubular retractor | |
US4796846A (en) | Retaining device for a surgical instrument | |
US4867404A (en) | Flexible holder for a cystoscope or the like | |
US9545250B2 (en) | Kit of parts for use in retracting body tissue | |
US5284129A (en) | Swivel ring surgical retractor | |
US3749088A (en) | Surgical retractor device | |
US4143652A (en) | Surgical retaining device | |
US2807259A (en) | Vaginal speculum and surgical retractor | |
US3221743A (en) | System and apparatus for positioning and securing surgical implements | |
US5993385A (en) | Self-aligning side-loading surgical retractor | |
US5582379A (en) | Adjustable limb support system | |
US3774773A (en) | Magnetic medical tool holder stand | |
US5108213A (en) | Clamping assembly | |
US5254079A (en) | Head clamp | |
EP2508153A1 (en) | Low profile distractor apparatuses | |
ZA200502914B (en) | Retractor with interchangeable retractor blades | |
US5681018A (en) | Operating room tray system | |
US6663563B1 (en) | Fastening system for retractor support | |
US20160051241A1 (en) | Telescoping retractor holder | |
US1795296A (en) | Stand for diagnostic instruments | |
US3259430A (en) | Dental apparatus | |
US2214490A (en) | Bone-setting splint |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TORONTO-DOMINION BANK, THE Free format text: SECURITY INTEREST;ASSIGNOR:TRACOR, INC., (SEE RECORD FOR REMAINING GRANTORS);REEL/FRAME:004829/0701 Effective date: 19871216 Owner name: TORONTO-DOMINION BANK, THE,STATELESS Free format text: SECURITY INTEREST;ASSIGNOR:TRACOR, INC., (SEE RECORD FOR REMAINING GRANTORS);REEL/FRAME:004829/0701 Effective date: 19871216 |
|
AS | Assignment |
Owner name: BANK OF AMERICA AS AGENT Free format text: SECURITY INTEREST;ASSIGNOR:TORONTO-DOMINION BANK, THE;REEL/FRAME:005197/0122 Effective date: 19880801 Owner name: BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIA Free format text: SECURITY INTEREST;ASSIGNORS:TORONTO-DOMINION BANK;TRACOR, INC.;REEL/FRAME:005224/0276 Effective date: 19880801 Owner name: TORONTO-DOMINION BANK, THE Free format text: SECURITY INTEREST;ASSIGNORS:TRACOR, INC.;LITTLEFUSE, INC.;TRACOR AEROSPACE, INC.;AND OTHERS;REEL/FRAME:005234/0127 Effective date: 19880801 Owner name: BANK OF AMERICA NATIONAL TRUST AND SAVING ASSOCIAT Free format text: SECURITY INTEREST;ASSIGNOR:TORONTO DOMINION BANK, THE,;REEL/FRAME:005284/0163 Effective date: 19880801 Owner name: BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIA Free format text: SECURITY INTEREST;ASSIGNOR:TRACOR, INC.;REEL/FRAME:005217/0247 Effective date: 19880801 |
|
AS | Assignment |
Owner name: TRACOR, INC. Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION AS COLLATERAL AGENT;REEL/FRAME:005957/0562 Effective date: 19911220 Owner name: TRACOR, INC. Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION AS COLLATERAL AGENT;REEL/FRAME:005957/0542 Effective date: 19911227 |