US3470872A - Pivoted retractor with shielded spacer teeth - Google Patents

Pivoted retractor with shielded spacer teeth Download PDF

Info

Publication number
US3470872A
US3470872A US3470872DA US3470872A US 3470872 A US3470872 A US 3470872A US 3470872D A US3470872D A US 3470872DA US 3470872 A US3470872 A US 3470872A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
teeth
retractor
spacer
detent
arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Herman R Grieshaber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HERMAN R GRIESHABER
Original Assignee
HERMAN R GRIESHABER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0206Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/2812Surgical forceps with a single pivotal connection
    • A61B17/2833Locking means
    • A61B2017/2837Locking means with a locking ratchet
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/53683Spreading parts apart or separating them from face to face engagement

Description

1969 H. R. GRIESHABER PIVOTED RETRACTOR WITH SHIELDED SPACER TEETH Filed Nov. 25. 1966 INTEN'WVR.

HERMAN R. GR/ESHABER BY PEA/OLE TON, lVEUMA/V SE/BOLD 8 WILLIAMS A TTORNEYS United States Patent 3,470,872 PIVOTED RETRACTOR WITH SHIELDED SPACER TEETH Herman R. Grieshaber, Kenilworth, Ill. (7020 W. Cullom Ave., Norridge, Ill.) Filed Nov. 25, 1966, Ser. No. 596,938 Int. Cl. A61b 17/50 US. Cl. 128-17 4 Claims ABSTRACT- OF THE DISCLOSURE A surgical retractor employing pivotally connected arms having finger-engaging handle portions connected thereto utilizes a spacer strip mounted on one of the handle portions. The spacer strip has projections adapted to mesh with the teeth of a pivotal detent which is resiliently biased by means of an encased spring assembly. A shield disposed over the projections of the spacer strip prevents the retractor manipulator from coming into contact with the spacer projections.

This invention relates to a surgical retractor or like instrument, and more particularly pertains to an instrument containing a toothed spacer member extending between finger-engaging portions of the instrument in which a novel shield is provided to prevent contact of the user with the spacer teeth.

In tong-like instruments such as retractors wherein forces are exerted at the ends of the pivotally connected arms during use tending to collapse or close the same, means must be employed to maintain such arms in the desired open position. In a surgical retractor having opposed pivotal arms, tines or similar means are normally disposed at one terminal end of each arm for purposes of engaging and maintaining in spaced relationship tissue defining a surgical incision. Finger-engaging grip portions are disposed on the opposite ends of the arms of the retractor. One means commonly employed to maintain said arms spaced apart comprises an arcuate spacer plate extending from one pivotal arm to the other on which a pivotally mounted detent is mounted.

The teeth of the spacer strip directed in the direction of the instrument grip portions engage meshing teeth in the detent, which prevent closing of the retractor arms unless pivotally moved out of engagement with said spacer strip. However, because of the proximity of the teeth of the arcuate member to the retractor fingerengaging portion, tearing of gloves of the surgeon or his assistant oftentimes results. Such tearing not only confuses the operative procedures but also may on occasion provide a threat of infection.

In accordance with this invention the dangers inherent in the presence of such teeth are avoided by the placement of a novel shield over the teeth. Such shield prevents catching of adjacent materials while in no way interfering with the normal functioning of the retractor.

It is an object of this invention therefore to provide a surgical retractor or the like, in which teeth normally found in a spacer strip thereof provide no danger or problem whatsoever during normal instrument use.

It is another object of this invention to provide a surgical retractor or the like which may be simply modified so as to eliminate problems heretofore commonly encountered during use of such well known retractor construction.

In one embodiment of this invention a tong-like retractor is provided in which tines disposed at one distal end of each of two pivotal arm portions are adapted to engage tissue such as define an incision for maintaining the same in spaced relation. Finger-engaging openings or grip portions disposed at the opposite ends of such arms enable the tines and engaged tissue to be spread apart by a surgeon or assistant by pivotally moving the tines apart. An arcuate spacer strip having a toothed edge disposed adjacent the grips coacts with a pivotal toothed detent for locking the arms in their spaced relationship. In accordance with this invention a novel shield for the teeth of the spacer strip is disposed thereover to obviate engagement with the surgeons gloves or with other adjacent matter such as sponges, as will hereinafter be explained in greater detail.

For a more complete understanding of this invention reference will now be made to the drawing wherein:

FIG. 1 is a bottom plane view of one embodiment of a surgical retractor made in accordance with this invention;

FIG. 2 is a fragmentary elevational view partly broken away illustrating the manner in which the detent of a retractor of this invention is pivotally mounted to one of the instrument arms and the manner in which such detent is spring biased into engagement with a spacer strip fragmentarily illustrated;

FIG. 3 is an enlarged fragmentary perspective view of a toothed spacer strip employed in the retractor illustrated in FIG. 1; and

FIG. 4 is a fragmentary perspective view illustrated on a greatly enlarged scale of tines which may be employed on the terminal ends of each of the retractor arms for purposes of effecting a retracting function.

Referring now more particularly to FIG. 1, a retractor 10 is illustrated having opposed arm portions 12 and 14 which are pivotally connected by means of pin 16. Attaohed to a terminal end of each arm 12 and 14 are a plurality of tines 18 more clearly seen in FIG. 4. Each time 18 has an outwardly disposed distal end 20 adapted to facilitate the spreading apart of engaged tissue. Each retractor arm 12 and 14 has integrally formed therewith at the end portion oppositely disposed to the tines 18 a fingenengaging grip portion. Grip 22 is formed with arm 12, and grip 24 is formed integrally with arm 14. The

. portions of the arms 12 and 14 extending from the pivot pin 16 to the grip portions 22 and 24 comprise handle portions 26 and 28 disposed to one side of pin 16 while the tines 18 are disposed on the opposite side.

In the normal course of retractor operation the tines 18 are disposed downwardly into an incision, and the engaged tissue spread apart by moving the handle portions and finger-engaging grip portions of a retractor together. It is apparent from the arrows shown in FIG. 1 that as the handle portions move together, the tines 18 of the handles to which attached are spread apart.

In order to position the tines and arms in a desired spaced relationship which shall remain fixed, arcuate spacer strip 30 is affixed to handle portion 26 of the retractor 10 by keying, pinning or the like. The strip 30 extends beyond the opposed handle portion 28 of the retractor as illustrated in FIG. 1.

Pivotally mounted on pin 40 of handle portion 28 of the retractor is a detent 32 more clearly seen in FIG. 2. The spacer strip 30 has projecting teeth disposed in the general director of the underlying grip portions of the retractor, and more particularly, angled so as to point in the direction of the grip portion 22 of the device. 'These teeth 34 are adapted to mesh with mating teeth 36 which are angled in a direction opposite to that of teeth 34. Inasmuch as the detent 32 is pivotally mounted in offcenter condition, it is seen that as the handle portions and finger engaging grips are moved together, the teeth 34 of the spacer strip 30 will slidably move over the underlying teeth of the cam 32 which will be pivoted out of engagement with the teeth 34.

A spring loaded cylindrical pin 38 illustrated in FIGS. 1 and 2, and partially broken away in FIG. 2, urges the detent 32 and the teeth 36 thereof against the overlying spacer strip 30 and the teeth 34. When the handles 26 and 24 are pulled together, the teeth of detent 32 will be pushed from engagement with teeth 34 as the detent pivots about its pin 40 in opposition to spring 42 mounted in an opening in handle portion 28 of the retractor 10. However, should any force be exerted tending to push the opposed tines 18 of the arms and 14 together, the teeth 36 of the detent 32 will function as a catch preventing movement of the handle portions 26 and 28 in an outward direction or movement of the tine portions 18 in an inward direction.

In order to collapse or bring together the tine portions 18 of the illustrated retractor, the detent 32 must be manually pivoted out of engagement with the teeth of the spacer strip 30 by means of handle portion 33 of the detent which may be easily pushed inwardly in opposition to the spring 42. After the restraining teeth 36 of the detent 32 are disengaged fnom the teeth 34 of the spacer strip 30 the tine portions may obviously be readily brought together and disengaged from the tissue with which they were initially engaged.

In utilizing instruments such as that above described, difficulty had previously been encountered in the course of instrument use as the result of the sharp teeth 34 of the spacer strip engaging and tearing the thin rubber gloves of the surgeon or his assistant manipulating the same. In addition such sharp teeth could readily engage a sponge or other material which might be brought into contact therewith.

In accordance with this invention, an arcuate plate or shield 44 is mounted on the upper surface of the spacer strip 30 in such manner so as to project beyond the terminal ends of teeth 34 in the manner illustrated in FIG. 3. As a result of such plate it is virtually impossible for a surgeon to contact such teeth in the normal course of instrument use inasmuch as the surgeons glove will first engage the plate 44.

The plate 44 is securely adhered to the spacer strip 30 so as to insure a full surface-to-surface contact with no open spaces between the plate and strip which would function as a breeding or harboring place for germs or bacteria. Shield plates may be employed on opposed surfaces of the spacer strip as indicated in FIG. 2 wherein shield plate 44a is oppositely disposed to shield 44. Plate 44a is of course adhered to the strip 30 similarly to plate 44. It is apparent that the most common diificulty previously encountered was the tearing of the surgeons gloves when the surgeons forefinger was employed to engage the detent handle portion 33 thereby releasing the detent from engagement with the spacer strip. In the course of such release operation, the glove portion of the finger tripping the detent 32 oftentimes came into engagement with the sharp teeth 34 in the spacer strip and in many instances the glove was torn.

The specific configuration of the elements disposed on the ends of the arms 12 and 14 is of no importance to this invention. This invention is concerned solely with the protection to be afforded the user, and more specifically the protection against tearing action of the teeth 34. In addition, a subsidiary feature of this invention comprises the spring loaded pin 38 which also is free from all projections or cutting surfaces and by virtue of the snug, slidable relationship with the opening in the handle portion 28 of the retractor 10, minimizes the danger of foreign matter accumulation on pin 38. In addition pin 38 is free from all surface configurations or points which may engage a surgeons glove, sponge or the like.

It is seen therefore that a simple protective structural feature has been provided which is adapted for use with retractors and other similar surgical and dental instruments such as dilators with a minimum amount of modification of the basic instrument. The presence of the protective plate or plates, while affording maximum protection in no way detracts from the ability of the instrument to be sterilized in the course of being rendered germ free. Also, a novel spring loaded pin has been provided for purposes of urging the provided detent into engagement with the teeth of the spacer blade.

Without further elaboration, the foregoing will so fully explain the character of our invention that others may, by applying current knowledge, readily adapt the same for use under varying conditions of service, while retaining certain features which may properly be said to constitute the essential items of novelty involved, which items are intended to be defined and secured to us by the following claims.

I claim:

1. In a surgical retractor the combination comprising pivotally connected arms movable about a pivot point, said arms having connected thereto handle portions with finger-engaging openings adapted to be moved into adjacent and spaced relationships, said 'arms and handle portions being arranged relative to said pivot point whereby the distal ends of said arms are in abutting relation when said handle portions are in maximum spaced relation, said arm distal ends being adapted to move apart as said handle portions approach each other; spacer means mounted on one of said handle portions and extending toward the other of said handle pontions and having a plurality of projections extending from an edge portion of said spacer mean-s disposed adjacent said finger-engaging openings; shield means disposed over all of said projections preventing contact between said projections and the fingers of the manipulator of said retractor when said projections are approached in a plane normal to that in which said spacer means is disposed; a resiliently biased, toothed detent mounted on said other of said handle portions and adapted to pivot into engagement with the projections of said spacer means for preventing movement of said arms toward each other when the teeth thereof engage the projections of said spacer means.

2. The device of claim 1 in which said toothed detent is spring loaded into engagement with said spacer means, the spring being mounted in a reciprocally movably cylindrical container extending from said other of said handle portions and urging said detent into engagement with said spacer means.

3. The surgical retractor of claim 1 in combination with a discrete plate means disposed on at least one surface of said spacer means and extending beyond said projections.

4. In a surgical retr-actor. the combination comprising opposed pivotally connected arms pivotal about a pivot point into spaced and adjacent relationship; each of said arms being connected to a finger-engaging handle portion adapted to be manually engaged for moving said arms into desired relationship; spacer means extending between said handle portions attached to one of said handle portions and having projections disposed along an edge adjacent said finger-engaging handle portions; a pivotal detent mounted on the other of said handle portions and having teeth biased into engagement with the projections of said spacer means, the relative angularity of said spacer means projections and said detent teeth enabling relative slidable movement therebetween when said opposed arms are pivotally moved apart and providing for meshing engagement when said arms are piovtally moved toward each other; said detent engaging a spring-loaded projection snugly and reciprocally mounted in a receiving opening disposed in the other of said handle portions; said detent having a handle portion whereby the teeth 5 thereof may be readily pivoted out of engagement with 2,293,984 8/1942 the projections of said spacer means in opposition to said 2,481,007 9/ 1949 spring-loaded projection. 3,038,467 6/ 1962 References Cited 3176682 4/1965 UNITED STATES PATENTS Kirschbaum 128323 Dugdale 12817 XR Sovatkin 128-17 Wexler 128-17 5 RICHARD A. GAUDET, Primary Examiner KYLE L. HOWELL, Assistant Examiner US. Cl. X.R.

Champ 81393 Hooks 29223 Sovatkin 128325 Stephens 81-328 10 29239; 81-328; 128321

US3470872A 1966-11-25 1966-11-25 Pivoted retractor with shielded spacer teeth Expired - Lifetime US3470872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US59693866 true 1966-11-25 1966-11-25

Publications (1)

Publication Number Publication Date
US3470872A true US3470872A (en) 1969-10-07

Family

ID=24389356

Family Applications (1)

Application Number Title Priority Date Filing Date
US3470872A Expired - Lifetime US3470872A (en) 1966-11-25 1966-11-25 Pivoted retractor with shielded spacer teeth

Country Status (1)

Country Link
US (1) US3470872A (en)

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762400A (en) * 1971-10-26 1973-10-02 Donald B Mc Medical examining instrument
US4034746A (en) * 1975-08-01 1977-07-12 Williams Robert W Retractor
US4318388A (en) * 1980-10-27 1982-03-09 Fogarty A Edward Launching device using pinching force
US4356821A (en) * 1980-09-17 1982-11-02 Bruce Rind Airway
US4365625A (en) * 1980-09-17 1982-12-28 Bruce Rind Expandable oral airway
US4722339A (en) * 1985-09-18 1988-02-02 Fritz Gegauf Ag Bernina - Nahmaschinenfabrik Surgical instrument
US4754746A (en) * 1986-09-25 1988-07-05 Cox Kenneth L Self-retaining metatarsal spreader
WO1989006939A1 (en) * 1988-02-05 1989-08-10 Pfizer Hospital Product Group, Inc. Multi purpose orthopedic ratcheting forceps
US5176702A (en) * 1991-04-04 1993-01-05 Symbiosis Corporation Ratchet locking mechanism for surgical instruments
US5320637A (en) * 1993-06-07 1994-06-14 Borders Jr Jack C Safety skin hook and method
US5476479A (en) * 1991-09-26 1995-12-19 United States Surgical Corporation Handle for endoscopic surgical instruments and jaw structure
US5483952A (en) * 1991-09-26 1996-01-16 United States Surgical Corporation Handle for surgical instruments
US5843125A (en) * 1995-06-07 1998-12-01 Jempolsky; Lawrence Skin contractor
EP1053717A1 (en) 1999-05-21 2000-11-22 LAB Engineering & Manufacturing, Inc. Tissue retractor
US6336386B1 (en) * 2000-07-21 2002-01-08 Yung Jen Lee Plier device having an adjustable opening
WO2002007614A1 (en) * 2000-07-20 2002-01-31 Synthes Ag Chur Safety ratchet mechanism
US6416466B1 (en) * 2001-03-28 2002-07-09 Ray-Ling Hsiao Structure for vagina speculum
US20020123668A1 (en) * 2001-01-29 2002-09-05 Stephen Ritland Retractor and method for spinal pedicle screw placement
US20030005797A1 (en) * 1999-05-03 2003-01-09 Hopper Ryan K. Clamp device
US20030083688A1 (en) * 2001-10-30 2003-05-01 Simonson Robert E. Configured and sized cannula
US20030083689A1 (en) * 2001-10-30 2003-05-01 Simonson Robert E. Non cannulated dilators
GB2391830A (en) * 2002-08-14 2004-02-18 Great Neck Saw Manufacturers Clamp with lockable jaws
US20040147935A1 (en) * 2003-01-25 2004-07-29 Christopher Segler Tarsal Joint Space Distractor
US6921263B1 (en) * 2001-06-08 2005-07-26 Terrence L. Horan Adjustable dental instrument having a multi-detent latch
US6929606B2 (en) 2001-01-29 2005-08-16 Depuy Spine, Inc. Retractor and method for spinal pedicle screw placement
US6966910B2 (en) 2002-04-05 2005-11-22 Stephen Ritland Dynamic fixation device and method of use
US20060041194A1 (en) * 2004-08-23 2006-02-23 Mark Sorochkin Surgical gripper with foldable head
US20060069407A1 (en) * 2004-09-24 2006-03-30 Weber Robert M Grasper assembly
US20060079899A1 (en) * 2001-09-28 2006-04-13 Stephen Ritland Connection rod for screw or hook polyaxial system and method of use
US7166073B2 (en) 2000-09-29 2007-01-23 Stephen Ritland Method and device for microsurgical intermuscular spinal surgery
US7214186B2 (en) 2000-09-29 2007-05-08 Stephen Ritland Method and device for retractor for microsurgical intermuscular lumbar arthrodesis
US20070270885A1 (en) * 2001-10-01 2007-11-22 Depuy Mitek, Inc., A Massachusetts Corporation Suturing apparatus and method
US20070299315A1 (en) * 2006-06-21 2007-12-27 Geller Peter L Novel retractor for hernia surgery
US7455639B2 (en) 2004-09-20 2008-11-25 Stephen Ritland Opposing parallel bladed retractor and method of use
US7481766B2 (en) 2003-08-14 2009-01-27 Synthes (U.S.A.) Multiple-blade retractor
US20090264897A1 (en) * 2008-03-18 2009-10-22 Wohl Daniel L Tonsil forceps
US7655025B2 (en) 2001-09-28 2010-02-02 Stephen Ritland Adjustable rod and connector device and method of use
US7682375B2 (en) 2002-05-08 2010-03-23 Stephen Ritland Dynamic fixation device and method of use
US7753939B2 (en) 2000-06-30 2010-07-13 Stephen Ritland Polyaxial connection device and method
US7763047B2 (en) 2002-02-20 2010-07-27 Stephen Ritland Pedicle screw connector apparatus and method
US7824410B2 (en) 2001-10-30 2010-11-02 Depuy Spine, Inc. Instruments and methods for minimally invasive spine surgery
US7909843B2 (en) 2004-06-30 2011-03-22 Thompson Surgical Instruments, Inc. Elongateable surgical port and dilator
US7959564B2 (en) 2006-07-08 2011-06-14 Stephen Ritland Pedicle seeker and retractor, and methods of use
USRE42525E1 (en) 1999-03-12 2011-07-05 Depuy Spine, Inc. Cannula and sizing insertion method
US8021399B2 (en) 2005-07-19 2011-09-20 Stephen Ritland Rod extension for extending fusion construct
US20120101505A1 (en) * 2010-10-26 2012-04-26 Zimmer, Inc. Patellar resection instrument with variable depth guide
US20120143241A1 (en) * 2010-12-02 2012-06-07 Stephen Paul Ray Tissue Grasping Forceps & Localizing Needle Holder
US20120167728A1 (en) * 2011-01-03 2012-07-05 Artemio Miramontes Locking Pliers with Fall Arrest Anchoring Device
US8262571B2 (en) 2003-05-22 2012-09-11 Stephen Ritland Intermuscular guide for retractor insertion and method of use
US8267957B1 (en) * 2007-12-14 2012-09-18 Holmed Corporation Compressor with extended ratchet bar feature
US20140155700A1 (en) * 2009-10-23 2014-06-05 Beaver-Visitec International (Us), Inc. Speculum
US10080562B2 (en) 2015-08-06 2018-09-25 DePuy Synthes Products, Inc. Methods, systems, and devices for surgical suturing

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1123243A (en) * 1913-11-13 1915-01-05 John K Champ Pliers.
US1616621A (en) * 1925-03-14 1927-02-08 William N Hooks Piston-ring remover
US1852542A (en) * 1929-12-26 1932-04-05 Sklar Mfg Co Inc J Cutlery
US2250400A (en) * 1939-04-27 1941-07-22 Paul M Stephens Wrench
US2293984A (en) * 1941-04-21 1942-08-25 Harry M Kirschbaum Obstetrical forceps
US2481007A (en) * 1947-10-01 1949-09-06 Dugdale Robert Fish mouth spreader
US3038467A (en) * 1960-08-29 1962-06-12 Sklar Mfg Co J Surgical instrument
US3176682A (en) * 1963-03-18 1965-04-06 David J Wexler Self-retaining vaginal surgical retractor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1123243A (en) * 1913-11-13 1915-01-05 John K Champ Pliers.
US1616621A (en) * 1925-03-14 1927-02-08 William N Hooks Piston-ring remover
US1852542A (en) * 1929-12-26 1932-04-05 Sklar Mfg Co Inc J Cutlery
US2250400A (en) * 1939-04-27 1941-07-22 Paul M Stephens Wrench
US2293984A (en) * 1941-04-21 1942-08-25 Harry M Kirschbaum Obstetrical forceps
US2481007A (en) * 1947-10-01 1949-09-06 Dugdale Robert Fish mouth spreader
US3038467A (en) * 1960-08-29 1962-06-12 Sklar Mfg Co J Surgical instrument
US3176682A (en) * 1963-03-18 1965-04-06 David J Wexler Self-retaining vaginal surgical retractor

Cited By (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762400A (en) * 1971-10-26 1973-10-02 Donald B Mc Medical examining instrument
US4034746A (en) * 1975-08-01 1977-07-12 Williams Robert W Retractor
US4356821A (en) * 1980-09-17 1982-11-02 Bruce Rind Airway
US4365625A (en) * 1980-09-17 1982-12-28 Bruce Rind Expandable oral airway
US4318388A (en) * 1980-10-27 1982-03-09 Fogarty A Edward Launching device using pinching force
US4722339A (en) * 1985-09-18 1988-02-02 Fritz Gegauf Ag Bernina - Nahmaschinenfabrik Surgical instrument
US4754746A (en) * 1986-09-25 1988-07-05 Cox Kenneth L Self-retaining metatarsal spreader
WO1989006939A1 (en) * 1988-02-05 1989-08-10 Pfizer Hospital Product Group, Inc. Multi purpose orthopedic ratcheting forceps
US4896661A (en) * 1988-02-05 1990-01-30 Pfizer, Inc. Multi purpose orthopedic ratcheting forceps
US5176702A (en) * 1991-04-04 1993-01-05 Symbiosis Corporation Ratchet locking mechanism for surgical instruments
US5476479A (en) * 1991-09-26 1995-12-19 United States Surgical Corporation Handle for endoscopic surgical instruments and jaw structure
US5483952A (en) * 1991-09-26 1996-01-16 United States Surgical Corporation Handle for surgical instruments
WO1993015673A1 (en) * 1992-02-07 1993-08-19 Symbiosis Corporation Ratchet locking mechanism for surgical instruments
US5320637A (en) * 1993-06-07 1994-06-14 Borders Jr Jack C Safety skin hook and method
US5843125A (en) * 1995-06-07 1998-12-01 Jempolsky; Lawrence Skin contractor
USRE42525E1 (en) 1999-03-12 2011-07-05 Depuy Spine, Inc. Cannula and sizing insertion method
USRE46978E1 (en) 1999-03-12 2018-08-07 DePuy Synthes Products, Inc. Cannula and sizing insertion method
USRE45571E1 (en) 1999-03-12 2015-06-23 DePuy Synthes Products, Inc. Cannula and sizing insertion method
US6860179B2 (en) * 1999-05-03 2005-03-01 Irwin Industrial Tool Company Clamp device
US20030005797A1 (en) * 1999-05-03 2003-01-09 Hopper Ryan K. Clamp device
EP1053717A1 (en) 1999-05-21 2000-11-22 LAB Engineering & Manufacturing, Inc. Tissue retractor
US6196969B1 (en) 1999-05-21 2001-03-06 Lab Engineering & Manufacturing, Inc. Tissue retractor adapted for the attachment of an auxiliary element
US7753939B2 (en) 2000-06-30 2010-07-13 Stephen Ritland Polyaxial connection device and method
CN100405984C (en) 2000-07-20 2008-07-30 斯恩蒂斯有限公司 Safety ratchet mechanism
JP2004504096A (en) * 2000-07-20 2004-02-12 ジンテーズ アクチエンゲゼルシャフト クールSynthes Aktiengesellschaft Safety ratchet mechanism
US6635072B1 (en) 2000-07-20 2003-10-21 Synthes Safety ratchet mechanism
WO2002007614A1 (en) * 2000-07-20 2002-01-31 Synthes Ag Chur Safety ratchet mechanism
US6336386B1 (en) * 2000-07-21 2002-01-08 Yung Jen Lee Plier device having an adjustable opening
US7214186B2 (en) 2000-09-29 2007-05-08 Stephen Ritland Method and device for retractor for microsurgical intermuscular lumbar arthrodesis
US7166073B2 (en) 2000-09-29 2007-01-23 Stephen Ritland Method and device for microsurgical intermuscular spinal surgery
US20020123668A1 (en) * 2001-01-29 2002-09-05 Stephen Ritland Retractor and method for spinal pedicle screw placement
US6929606B2 (en) 2001-01-29 2005-08-16 Depuy Spine, Inc. Retractor and method for spinal pedicle screw placement
US6416466B1 (en) * 2001-03-28 2002-07-09 Ray-Ling Hsiao Structure for vagina speculum
US6921263B1 (en) * 2001-06-08 2005-07-26 Terrence L. Horan Adjustable dental instrument having a multi-detent latch
US9622790B2 (en) 2001-09-19 2017-04-18 Warsaw Orthopedic, Inc. Rod extension for extending fusion construct
US7207992B2 (en) 2001-09-28 2007-04-24 Stephen Ritland Connection rod for screw or hook polyaxial system and method of use
US20100137914A1 (en) * 2001-09-28 2010-06-03 Stephen Ritland Adjustable rod and connector device
US7985245B2 (en) 2001-09-28 2011-07-26 Stephen Ritland Connection rod for screw or hook polyaxial system and method of use
US20060079899A1 (en) * 2001-09-28 2006-04-13 Stephen Ritland Connection rod for screw or hook polyaxial system and method of use
US7695498B2 (en) 2001-09-28 2010-04-13 Stephen Ritland Connection rod for screw or hook polyaxial system and method of use
US7655025B2 (en) 2001-09-28 2010-02-02 Stephen Ritland Adjustable rod and connector device and method of use
US20110087245A1 (en) * 2001-10-01 2011-04-14 Depuy Mitek, Inc., A Massachusetts Corporation Suturing Apparatus and Method
US10034665B2 (en) 2001-10-01 2018-07-31 Medos International Sarl Suturing apparatus and method
US20070270885A1 (en) * 2001-10-01 2007-11-22 Depuy Mitek, Inc., A Massachusetts Corporation Suturing apparatus and method
US7879046B2 (en) 2001-10-01 2011-02-01 Depuy Mitek, Inc. Suturing apparatus and method
US9808241B2 (en) 2001-10-01 2017-11-07 Medos International Sarl Suturing apparatus and method
US8540732B2 (en) 2001-10-01 2013-09-24 Depuy Mitek, Inc. Suturing apparatus and method
US20050216002A1 (en) * 2001-10-30 2005-09-29 Depuy Spine, Inc. Configured and sized cannula
US8556905B2 (en) 2001-10-30 2013-10-15 Depuy Spine, Inc. Configured and sized cannula
US8852244B2 (en) 2001-10-30 2014-10-07 DePuy Synthes Products, LLC Configured and sized cannula
US8444678B2 (en) 2001-10-30 2013-05-21 Depuy Spine, Inc. Instruments and methods for minimally invasive spine surgery
US20030083689A1 (en) * 2001-10-30 2003-05-01 Simonson Robert E. Non cannulated dilators
US20030083688A1 (en) * 2001-10-30 2003-05-01 Simonson Robert E. Configured and sized cannula
US9028551B2 (en) 2001-10-30 2015-05-12 DePuy Synthes Products, Inc. Configured and sized cannula
US10004488B2 (en) 2001-10-30 2018-06-26 DePuy Synthes Products, Inc. Configured and sized cannula
US8192437B2 (en) 2001-10-30 2012-06-05 Depuy Spine, Inc. Configured and sized cannula
US9226782B2 (en) 2001-10-30 2016-01-05 DePuy Synthes Products, Inc. Instruments and methods for minimally invasive spine surgery
US7008431B2 (en) 2001-10-30 2006-03-07 Depuy Spine, Inc. Configured and sized cannula
US9532774B2 (en) 2001-10-30 2017-01-03 DePuy Synthes Products, Inc. Configured and sized cannula
US20100222824A1 (en) * 2001-10-30 2010-09-02 Depuy Spine, Inc. Configured and sized cannula
US7824410B2 (en) 2001-10-30 2010-11-02 Depuy Spine, Inc. Instruments and methods for minimally invasive spine surgery
US8235999B2 (en) 2001-10-30 2012-08-07 Depuy Spine, Inc. Configured and sized cannula
US8361151B2 (en) 2001-10-30 2013-01-29 Depuy Spine, Inc. Configured and sized cannula
US8221459B2 (en) 2002-02-20 2012-07-17 Stephen Ritland Pedicle screw connector apparatus and method
US20110022094A1 (en) * 2002-02-20 2011-01-27 Stephen Ritland Pedicle Screw Connector Apparatus and Method
US7763047B2 (en) 2002-02-20 2010-07-27 Stephen Ritland Pedicle screw connector apparatus and method
US8932334B2 (en) 2002-04-05 2015-01-13 Stephen Ritland Dynamic fixation device and method of use
US6966910B2 (en) 2002-04-05 2005-11-22 Stephen Ritland Dynamic fixation device and method of use
US7682375B2 (en) 2002-05-08 2010-03-23 Stephen Ritland Dynamic fixation device and method of use
US20100179596A1 (en) * 2002-05-08 2010-07-15 Stephen Ritland Dynamic Fixation Device and Method of Use
US20100174318A1 (en) * 2002-05-08 2010-07-08 Stephen Ritland Dynamic Fixation Device and Method of Use
US9918744B2 (en) 2002-05-08 2018-03-20 Stephen Ritland Dynamic fixation device and method of use
US8690922B2 (en) 2002-05-08 2014-04-08 Stephen Ritland Dynamic fixation device and method of use
US8685062B2 (en) 2002-05-08 2014-04-01 Stephen Ritland Dynamic fixation device and method of use
US20100160969A1 (en) * 2002-05-08 2010-06-24 Stephen Ritland Dynamic Fixation Device and Method of Use
US8585739B2 (en) 2002-05-08 2013-11-19 Stephen Ritland Dynamic fixation device and method of use
US8486111B2 (en) 2002-05-08 2013-07-16 Stephen Ritland Dynamic fixation device and method of use
US9232967B2 (en) 2002-05-08 2016-01-12 Stephen Ritland Dynamic fixation device and method of use
GB2391830B (en) * 2002-08-14 2005-12-07 Great Neck Saw Manufacturers Clamp
GB2391830A (en) * 2002-08-14 2004-02-18 Great Neck Saw Manufacturers Clamp with lockable jaws
US6711789B2 (en) 2002-08-14 2004-03-30 Great Neck Saw Manufacturers, Inc. Clamp
US20040147935A1 (en) * 2003-01-25 2004-07-29 Christopher Segler Tarsal Joint Space Distractor
US7097647B2 (en) 2003-01-25 2006-08-29 Christopher Paige Segler Tarsal joint space distractor
US8262571B2 (en) 2003-05-22 2012-09-11 Stephen Ritland Intermuscular guide for retractor insertion and method of use
US7481766B2 (en) 2003-08-14 2009-01-27 Synthes (U.S.A.) Multiple-blade retractor
US7909843B2 (en) 2004-06-30 2011-03-22 Thompson Surgical Instruments, Inc. Elongateable surgical port and dilator
US20060041194A1 (en) * 2004-08-23 2006-02-23 Mark Sorochkin Surgical gripper with foldable head
US7455639B2 (en) 2004-09-20 2008-11-25 Stephen Ritland Opposing parallel bladed retractor and method of use
US20060069407A1 (en) * 2004-09-24 2006-03-30 Weber Robert M Grasper assembly
US7727256B2 (en) 2004-09-24 2010-06-01 Arthrex, Inc. Grasper assembly
US8021399B2 (en) 2005-07-19 2011-09-20 Stephen Ritland Rod extension for extending fusion construct
US8845694B2 (en) 2005-07-19 2014-09-30 Warsaw Orthopedic, Inc. Rod extension for extending fusion construct
US20070299315A1 (en) * 2006-06-21 2007-12-27 Geller Peter L Novel retractor for hernia surgery
US7959564B2 (en) 2006-07-08 2011-06-14 Stephen Ritland Pedicle seeker and retractor, and methods of use
US8267957B1 (en) * 2007-12-14 2012-09-18 Holmed Corporation Compressor with extended ratchet bar feature
US9808272B2 (en) 2008-03-18 2017-11-07 Daniel L. Wohl Tonsil forceps
US20090264897A1 (en) * 2008-03-18 2009-10-22 Wohl Daniel L Tonsil forceps
US20140155700A1 (en) * 2009-10-23 2014-06-05 Beaver-Visitec International (Us), Inc. Speculum
US8747410B2 (en) * 2010-10-26 2014-06-10 Zimmer, Inc. Patellar resection instrument with variable depth guide
US20120101505A1 (en) * 2010-10-26 2012-04-26 Zimmer, Inc. Patellar resection instrument with variable depth guide
US9237899B2 (en) * 2010-12-02 2016-01-19 Stephen Paul Ray Tissue grasping forceps and localizing needle holder
US20120143241A1 (en) * 2010-12-02 2012-06-07 Stephen Paul Ray Tissue Grasping Forceps & Localizing Needle Holder
US20120167728A1 (en) * 2011-01-03 2012-07-05 Artemio Miramontes Locking Pliers with Fall Arrest Anchoring Device
US10080562B2 (en) 2015-08-06 2018-09-25 DePuy Synthes Products, Inc. Methods, systems, and devices for surgical suturing

Similar Documents

Publication Publication Date Title
US3530860A (en) Method and apparatus for inserting a tube through the ear drum
US3518993A (en) Surgical clip applicator
US3244317A (en) Blade dispenser
US5993465A (en) Method of ligating a vessel or duct
US3823719A (en) Finger operated forceps type surgical instrument
US5776156A (en) Endoscopic cutting instrument
US5431635A (en) Safety penetrating instrument having a triggered safety member for establishing an endoscopic portal in an anatomical cavity wall
US4130113A (en) Retractor
US3542015A (en) Surgical retractor
US4746016A (en) Blade removal and/or mounting mechanism and dispenser, extractor-disposal apparatus including same
US5928263A (en) Surgical instrument with flexible actuator and rigid actuator cover
US5168629A (en) Scissor assembly
US5913862A (en) Umbilical cord cutting and clamping device
US4452246A (en) Surgical instrument
US6976992B2 (en) Dual-function medical instrument
US5382253A (en) Clip applier tool
US4385626A (en) Speculum for medical examination with a noiseless mechanical locking mechanism
US6302842B1 (en) Episiotomy retractor
US6500188B2 (en) Ultrasonic surgical instrument with finger actuator
US4143656A (en) Instrument and method for inserting an intrauterine contraceptive device
US7022128B2 (en) Surgical knife safety handle
US6261265B1 (en) Device for protecting a cutting and/or drilling tool
US5141517A (en) Retractable instrument
US5431675A (en) Locking mechanism for endoscopic or laparoscopic surgical instruments
US5971920A (en) Surgical retractor