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Dilator

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US1328624A
US1328624A US18593717A US1328624A US 1328624 A US1328624 A US 1328624A US 18593717 A US18593717 A US 18593717A US 1328624 A US1328624 A US 1328624A
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member
head
shown
arms
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Frank B Graham
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Frank B Graham
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M29/00Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02Dilators made of swellable material

Description

FRANK '.B. GRAHAM, OF KANSAS CITY, MISSOURI.

DILATOR.

Specification of Letters Patent.

Patented J an. 20, l19.20.

Application led August 13, 1917. Serial No. 185,937.

To all whom it may concern.'

Be it known that l, FRANK B, GRAHAM, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented a certain new and useful mprovement in Dilators, of which the following is a specification.

My invention relates to improi'lements in dilators.

lt is particularly adapted for use in dilating the uterus of a large animal, such as cow or mare.

One of the objects of my invention is to provide a dilater of the kind described with which the uterus may be easily and quickly expanded and which will permit ready access through the dilater when the latter is expanded to the interior of the uterus, for the insertion of an instrument or medicine.

The novel features of my invention are hereinafter fully described and claimed.

In the accompanying drawing which illustrates the preferred embodiment of my invention,

Figure 1 is an elevation of my improved dilater shown in the closed or contracted position, portions being broken away.

Fig. 2 is a side elevation of the dilater, partly broken away, as viewed from a point in a line at right angles to the line of view of Fig. 1.

Fig. Bis a central vertical sectional view of the instrument, the arms being shown in the expanded position and the two handles removed.

Fig. 4l is an enlarged cross section on the line 1-4 of Fig.

Fig. 5 is a cross section on the line 5-5 of Fig. 3.

Fig. 6 is an elevation of the inner end portion of the rotatable operating handle.

Fig, 7 is a vertical sectional view on the line 7-7 of Fig. 1.

Fig. 8 is a cross section on the line 8 8 of Fig. 6.

Fig. 9 is an elevation of an instrument adapted for insertion through the dilator.

Fig. 10 is an elevation of another instrument insertible through the dilator,

Similar reference characters designate similar parts in the diierent views.

1 designates a head adapted for insertion into the vaginal tract of a cow or mare. Carried by the head 1 are uterus dilating means comprising preferablya plurality of dlating arms 2 having their outer ends respectively pivotally mounted in slots 3 of the head 1. The arms 2 are preferably detachable from the head for the purpose of cleansing and sterilizing. For this purpose, each of the arms 2 is provided at its outer end with a hook 4. Said hooks respectively engage transverse pins 5 mounted in the head 1 and respectively extending across the slots 3.

For normally forcing the arms 2 to the closed position, shown in Figs. 1 and 2, any suitable means may be employed. For this purpose, I have shown a rubber band 6 encircling the arms 2.

For forcing the arms 2 to the expanded position shown in Fig. 3, the following described mechanism may be provided.

The head 1 is provided with a longitudinal central screw-threaded hole, in which is axially rotatably fitted a longitudinal tubular externally screw-threaded expanding member 7 which when axially turned in the proper direction, is adapted to have its inner end engage the inner sides of the arms 2 so as to force said arms to the expanded position shown in Fig. 3.

For turning the expanding member 7, I provide an operating handle, preferably composed of the following described parts.

The operating handle is provided at its inner end with a member 8, Fig. 6, provided at its inner end with a central reduced portion 9 which is adapted for insertion into the outer end of the expanding member 7 and which has mounted in it a transverse pin 10 having projecting ends adapted respectively to enter two longitudinal slots 11 having oppositely disposed lateral recesses 12 in the outer end of the member 7. When the portion 9 is inserted in the member 7 and axially turned so that the pin 10 enters the recesses 12, a slide plate 13 mounted in a longitudinal peripheral groove 11i in the inner end of the member 8 slides into slot 11. For sliding the plate 13, it may be provided with a laterally extending pin 15. The plate 13 is adapted to enter one of the slots 1l, when the pin 10 is in the recesses 12.

n The outer end of the operating handle is provided with a T-shaped member 16, the inner end of the shank of which is pivoted by a transverse pin 17 to a link 18 which is pivoted to the member 8 by a transverse pin 19, which is disposed at right angles to the pin 17. This link connection between the members 8 and 16 forms a universal joint Which permits the swinging in any direction of the outer end of the member 16.

For holding the instrument irmly in position, after the operating handle has been removed from the expanding member 7, I provide a longitudinal handle 20 rigidly secured at its inner end to the head 1 and having a right-angled extension 1 at .its outer end. Secured to the handle 20 is a plate 22'having two arms adapted to receive between them the shank of' the member 16, Fig. Ll. As shown in the drawing, the tubular [expanding member 7 is open at both ends and has an unrestricted passage throughout adapted for the insertion therethrough, when the operating handle is removed, of instruments, such as the catheter7 shown in Fig. 9, or the pincers, shown in F ig. 10.

ld'orholding the arms 2 in the expanded position, when the expanding member 7 is removed from the head 1, 1 provide a cen tral longitudinal tube 2", which is circumferentially adjustable in an enlarged portion of the central hole extending through the head 1 and designated by 24, Fig. 3. rllhe inner end of the tube 23 is provided with a square head 25 which, when in the position shown in solid lines in Fig. 5, and in F ig. 3, permits' the arms 2 to close, as shown in Fig. 1. VVhe'n the tube 23 is turned, to the position shown in dotted lines in Fig. 5, the corners ot the head will engage the arms 2 and Vretain `them in the open or expanded position, after the member 7 has been unscrewed and withdrawn from the head 1. The tube 23 encircles the inner reduced part olf-the tube-7.

F or circumferentially adjusting the tube 23, it has secured to it a laterally extendingpin 26 which is adapted to alternately strike'two pins 27, between which the pin 26 is located and which are secured to the head 1.l

To hold the tubeV 23 against longitudinal movement, a screw 28 is mounted in a screwthreaded hole in the head 1 and extends into a4 horizontal slot 29 provided in the tube 28, Fig. 7. f

in the operation of my invention, the instrument assembled and disposed as shown in'Fig. 2, is inserted into the vaginal tract of the animal to be operated upon, the arms 2 being inserted into the uterus. rl`he member 16 of the operating handle is then turned so as'to screw inwardly the expanding member 7, which will force the arms 2 to the expanded position shown in F ig. 3, after which the operator may insert his hand in the vaginal tract and slide the plate 13 out of engagement with the member 7, after which, by turning the operating handle clockwise, as viewed in Fig. 1, so that the pin -10 may pass out of the slots 11, the operating handle may be withdrawn, following which medicine may be inserted into the uterus through the tubular member 7 or instruments, such as are shown in Figs. 9 and 10 may be inserted through the tubular member 7 into the uterus.

.it it is desired to have a larger opening through the dilater than is afforded by the member 7, the latter may be unscrewed from the head 1 and removed therefrom by means oie the operating handle, the tube 23 having irst been turned to the position shown in dotted lines in Fig. 5, so as to retain the arms 2 in the expanded position.

The handle 2O is of a length sufiicient that its outer end will project from the vaginal tract, so that the operator may hold the dilator firmly in operative position, while it is being used.

l do not limit my invention to the structure shown and described, as modications, within the scope of the appended claims, may be made without departing from the spirit or my invention.

V7 hat l claim is:

1. A dilater of the kind described having a head, dilating means carried by said head, a longitudinal expanding member having screw-threaded and detachable connection with said head and adapted when turned axially in one direction to expand said dilating means, and releasable means for holding the dilating means expanded, when the expanding member has been removed.

2. A dilator of the kind described having a head, dilating means carried by said head, a longitudinal expanding member having screw-threaded and detachable connection with said head and adapted when turned axially in one direction to expandy said dilating means, and a tubular locking member circumferentially adjustable in said head to and from a position in which it will hold the dilating means expanded when the expanding member has been removed.

n testimony whereof I have signedv my name to this specification.

FRANK B. GRAHAM.

US1328624A 1917-08-13 1917-08-13 Dilator Expired - Lifetime US1328624A (en)

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Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168709A (en) * 1975-03-10 1979-09-25 Bentov Itzhak E Dilator
US4320762A (en) * 1975-03-10 1982-03-23 Bentov Itzhak E Dilator
US4416275A (en) * 1981-12-21 1983-11-22 Omley Herbert A Apparatus for applying a urine receptacle to a male
US4484918A (en) * 1981-12-21 1984-11-27 Omley Herbert A Method and tool for expanding a resilient ring for sliding over and positioning on a penis for anchoring a resilient catheter thereto
US4655218A (en) * 1985-10-23 1987-04-07 Blagoveschensky Gosudarstuvenny Meditsinsky Institut Prosthetic valve holder
US4693250A (en) * 1986-01-29 1987-09-15 Cook, Incorporated Method for dilating puncture site in the renal pelvis
US5176129A (en) * 1991-03-01 1993-01-05 Tekdyne, Inc. Self-retaining refractor
US5183465A (en) * 1990-12-28 1993-02-02 Dimitrios Xanthakos Apparatus for supporting and moving needles and trocars for penetrating the abdomen
EP0531710A2 (en) 1991-08-05 1993-03-17 United States Surgical Corporation Endoscopic dilator
US5195505A (en) * 1990-12-27 1993-03-23 United States Surgical Corporation Surgical retractor
US5217007A (en) * 1991-04-26 1993-06-08 Cook Incorporated Speculum for forming an ostomy in a trachea
US5271385A (en) * 1990-03-29 1993-12-21 United States Surgical Corporation Abdominal cavity organ retractor
US5391180A (en) * 1991-08-05 1995-02-21 United States Surgical Corporation Articulating endoscopic surgical apparatus
US5441044A (en) * 1993-08-16 1995-08-15 United States Surgical Corporation Surgical retractor
US5490819A (en) * 1991-08-05 1996-02-13 United States Surgical Corporation Articulating endoscopic surgical apparatus
US20040199084A1 (en) * 1999-11-24 2004-10-07 Nuvasive, Inc. Electromyography system
US20050149035A1 (en) * 2003-10-17 2005-07-07 Nuvasive, Inc. Surgical access system and related methods
US20050182454A1 (en) * 2001-07-11 2005-08-18 Nuvasive, Inc. System and methods for determining nerve proximity, direction, and pathology during surgery
US20070016097A1 (en) * 2003-01-15 2007-01-18 Nuvasive, Inc. System and methods for determining nerve direction to a surgical instrument
US20070021682A1 (en) * 2005-07-20 2007-01-25 Nuvasive Inc. System and methods for performing neurophysiologic assessments with pressure monitoring
US20070162072A1 (en) * 1992-02-12 2007-07-12 United States Surgical Corporation Articulating endoscopic surgical apparatus
US20070198062A1 (en) * 2003-09-25 2007-08-23 Nuvasive, Inc. Surgical access system and related methods
US20080058837A1 (en) * 1999-03-07 2008-03-06 Active Implants Corporation Method and apparatus for computerized surgery
US20080058606A1 (en) * 2002-10-08 2008-03-06 Nuvasive, Inc. Surgical access system and related methods
US20080065144A1 (en) * 1998-12-23 2008-03-13 Marino James F Nerve surveillance cannulae systems
US20080097164A1 (en) * 2003-01-16 2008-04-24 Nuvasive, Inc. Surgical access system and related methods
US20080167574A1 (en) * 2005-09-22 2008-07-10 Allen Farquhar Multi-Channel Stimulation Threshold Detection Algorithm For Use In Neurophysiology Monitoring
US20090054804A1 (en) * 2007-04-03 2009-02-26 Nuvasive Inc. Neurophysiologic monitoring system
US7522953B2 (en) 2001-09-25 2009-04-21 Nuvasive, Inc. System and methods for performing surgical procedures and assessments
US20090105604A1 (en) * 2005-02-02 2009-04-23 Nuvasive, Inc. System and Methods for Monitoring During Anterior Surgery
US20090124860A1 (en) * 2003-02-27 2009-05-14 Nuvasive, Inc. Surgical access system and related methods
US7582058B1 (en) 2002-06-26 2009-09-01 Nuvasive, Inc. Surgical access system and related methods
US20100286784A1 (en) * 2005-07-28 2010-11-11 Matthew Curran Total disc replacement system and related methods
US8287597B1 (en) 2009-04-16 2012-10-16 Nuvasive, Inc. Method and apparatus for performing spine surgery
US8313430B1 (en) 2006-01-11 2012-11-20 Nuvasive, Inc. Surgical access system and related methods
US20130190575A1 (en) * 2011-08-31 2013-07-25 Lanx, Inc. Lateral Retractor System and Methods of Use
US8568317B1 (en) 2005-09-27 2013-10-29 Nuvasive, Inc. System and methods for nerve monitoring
US8790406B1 (en) 2011-04-01 2014-07-29 William D. Smith Systems and methods for performing spine surgery
US8876851B1 (en) 2008-10-15 2014-11-04 Nuvasive, Inc. Systems and methods for performing spinal fusion surgery
US9198765B1 (en) 2011-10-31 2015-12-01 Nuvasive, Inc. Expandable spinal fusion implants and related methods
US9351845B1 (en) 2009-04-16 2016-05-31 Nuvasive, Inc. Method and apparatus for performing spine surgery
US9392953B1 (en) 2010-09-17 2016-07-19 Nuvasive, Inc. Neurophysiologic monitoring
US9579131B1 (en) 2012-03-08 2017-02-28 Nuvasive, Inc. Systems and methods for performing spine surgery
US9622732B2 (en) 2004-10-08 2017-04-18 Nuvasive, Inc. Surgical access system and related methods
US9757072B1 (en) 2013-02-11 2017-09-12 Nuvasive, Inc. Waveform marker placement algorithm for use in neurophysiologic monitoring
US9757067B1 (en) 2012-11-09 2017-09-12 Nuvasive, Inc. Systems and methods for performing neurophysiologic monitoring during spine surgery

Cited By (172)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320762A (en) * 1975-03-10 1982-03-23 Bentov Itzhak E Dilator
US4168709A (en) * 1975-03-10 1979-09-25 Bentov Itzhak E Dilator
US4484918A (en) * 1981-12-21 1984-11-27 Omley Herbert A Method and tool for expanding a resilient ring for sliding over and positioning on a penis for anchoring a resilient catheter thereto
US4416275A (en) * 1981-12-21 1983-11-22 Omley Herbert A Apparatus for applying a urine receptacle to a male
US4655218A (en) * 1985-10-23 1987-04-07 Blagoveschensky Gosudarstuvenny Meditsinsky Institut Prosthetic valve holder
US4693250A (en) * 1986-01-29 1987-09-15 Cook, Incorporated Method for dilating puncture site in the renal pelvis
US5271385A (en) * 1990-03-29 1993-12-21 United States Surgical Corporation Abdominal cavity organ retractor
US5195505A (en) * 1990-12-27 1993-03-23 United States Surgical Corporation Surgical retractor
US5183465A (en) * 1990-12-28 1993-02-02 Dimitrios Xanthakos Apparatus for supporting and moving needles and trocars for penetrating the abdomen
WO1994013212A1 (en) * 1991-03-01 1994-06-23 Tekdyne, Inc. Self-retaining retractor
US5176129A (en) * 1991-03-01 1993-01-05 Tekdyne, Inc. Self-retaining refractor
US5217007A (en) * 1991-04-26 1993-06-08 Cook Incorporated Speculum for forming an ostomy in a trachea
EP0531710A2 (en) 1991-08-05 1993-03-17 United States Surgical Corporation Endoscopic dilator
US5554101A (en) * 1991-08-05 1996-09-10 United States Surgical Corporation Surgical retractor
US5381788A (en) * 1991-08-05 1995-01-17 United States Surgical Corporation Surgical retractor
US5391180A (en) * 1991-08-05 1995-02-21 United States Surgical Corporation Articulating endoscopic surgical apparatus
US5490819A (en) * 1991-08-05 1996-02-13 United States Surgical Corporation Articulating endoscopic surgical apparatus
US5199419A (en) * 1991-08-05 1993-04-06 United States Surgical Corporation Surgical retractor
US20070162072A1 (en) * 1992-02-12 2007-07-12 United States Surgical Corporation Articulating endoscopic surgical apparatus
US5441044A (en) * 1993-08-16 1995-08-15 United States Surgical Corporation Surgical retractor
US7962191B2 (en) 1998-12-23 2011-06-14 Nuvasive, Inc. Nerve surveillance cannulae systems
US9014776B2 (en) 1998-12-23 2015-04-21 Nuvasive, Inc. Surgical access and nerve surveillance
US7693562B2 (en) 1998-12-23 2010-04-06 Nuvasive, Inc. Nerve surveillance cannulae systems
US8165653B2 (en) 1998-12-23 2012-04-24 Nuvasive, Inc. Surgical access and nerve surveillance
US20080065144A1 (en) * 1998-12-23 2008-03-13 Marino James F Nerve surveillance cannulae systems
US9827109B2 (en) 1999-03-07 2017-11-28 Nuvasive, Inc. Methods and apparatus for performing spine surgery
US20080058837A1 (en) * 1999-03-07 2008-03-06 Active Implants Corporation Method and apparatus for computerized surgery
US7963927B2 (en) 1999-11-24 2011-06-21 Nuvasive, Inc. Electromyography system
US9743853B2 (en) 1999-11-24 2017-08-29 Nuvasive, Inc. Electromyography system
US20040199084A1 (en) * 1999-11-24 2004-10-07 Nuvasive, Inc. Electromyography system
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US9456783B2 (en) 2001-07-11 2016-10-04 Nuvasive, Inc. System and methods for determining nerve proximity, direction and pathology during surgery
US9037250B2 (en) 2001-07-11 2015-05-19 Nuvasive, Inc. System and methods for determining nerve proximity, direction and pathology during surgery
US8812116B2 (en) 2001-07-11 2014-08-19 Nuvasive, Inc. System and methods for determining nerve proximity, direction, and pathology during surgery
US7920922B2 (en) 2001-07-11 2011-04-05 Nuvasive, Inc. System and methods for determining nerve proximity, direction, and pathology during surgery
US8050769B2 (en) 2001-07-11 2011-11-01 Nuvasive, Inc. System and methods for determining nerve proximity, direction, and pathology during surgery
US20050182454A1 (en) * 2001-07-11 2005-08-18 Nuvasive, Inc. System and methods for determining nerve proximity, direction, and pathology during surgery
US8634904B2 (en) 2001-07-11 2014-01-21 Nuvasive, Inc. System and methods for determining nerve proximity, direction, and pathology during surgery
US20090209879A1 (en) * 2001-07-11 2009-08-20 Nuvasive, Inc. System and Methods for Determining Nerve Proximity, Direction, and Pathology During Surgery
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