Connect public, paid and private patent data with Google Patents Public Datasets

Orificial diagnostic instrument

Download PDF

Info

Publication number
US3132645A
US3132645A US24942963A US3132645A US 3132645 A US3132645 A US 3132645A US 24942963 A US24942963 A US 24942963A US 3132645 A US3132645 A US 3132645A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
speculum
end
obturator
stem
member
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
Arthur D Gasper
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.)
Monarch Molding Inc
Original Assignee
Monarch Molding Inc
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
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/32Devices for opening or enlarging the visual field, e.g. of a tube of the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/31Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the rectum, e.g. proctoscopes, sigmoidoscopes, colonoscopes

Description

y 1964 I A. D. GASPER 3,132,645

ORIFICIAL DIAGNOSTIC INSTRUMENT Filed Jan. 4, 1963 III II II IIIIIIIIIIII 1110,,

II I

Arthur L7. Gaspe'r ATTORNEYS United States Patent 3,132,645 ORIFKCIAL DIAGNOSTIC INSTRURENT Arthur D. Gaspar, Lawrence, Kans, assignor to Monarch Molding, Inc, Council Grove, Karts, a corporation of Kansas Filed Jan. 4, 1963, Ser. No. 249,429 3 Claims. (Cl. 1283) This invention relates to medical diagnostic instruments of the class employed for examination of body cavities, and more specifically relates to disposable anoscopes.

The practice of the medical profession to use disposable, pre-sterilized instruments has created a demand for inexpensive instruments which are made of relatively inexpensive pliant plastic materials. For medical instruments adapted to be inserted into orificial cavities, sufiicient strength in compression may be achieved with relatively thin walled instruments such for example as the anoscope shown in US. Patent No. 3,038,466 to Moore. However, the instrument there shown requires one hand for insertion of the obturator and the other hand for insertion of the speculum. Care must be taken to keep the obturator and speculum aligned to avoid discomfort to the patient. If too much force is used, splitting of the end of the speculum can readily occur due to the fact the distal end of the speculum must be tapered for an easy,

ice

' The exterior surface is smooth and frusto-conically shaped.

painless insertion of the instrument, and the instrument rendered useless.

The major object of the present invention resides in providing an improved instrument wherein the speculum obturator may both be held by one hand with alignment of the speculum and obturator provided by novel positioning means on the obturator stem that engage the inside walls of the speculum and prevent the obturator from being pushed completely through the distal end of the speculum.

Another object resides in providing a novel, rigid obturator stem, by providing for example an X shaped cross section with integrally formed tabs on diametrically opposite sides of the stem which cooperate with the tapered Walls of the speculum to properly locate the obturator in the speculum.

Still another object resides in a novel connection between the obturator stem and the tapered, cup-shaped member on the distal end of the obturator.

These and other objects of the invention will become more fully apparent from the claims, and from the description as it proceeds in connection with the drawings wherein:

FIGURE 1 is a longitudinal elevation in section of a a disposable medical instrument of the present invention;

FIGURE 2 is an exploded perspective view of the two parts to the instrument shown in FIGURE 1;

FIGURE 3 is an elevation in section taken along line 3-3 of FIGURE 1; and

FIGURE 4 is an elevation in section taken along line 4-4 of FIGURE 1.

Referring now to the drawings, the instrument includes a disposable speculum 10 and disposable obturator 12 which is positioned in the speculum as shown in FIGURE 1 when the instrument is inserted into a body cavity to provide a relatively smooth, tapered entering portion. After the speculum has been fully inserted in the body cavity, the obturator is removed by means of a handle 14 at the proximal end thereof which permits the physician to look through speculum 10.

Speculum 10 may be of molded transparent plastic, and formed to have walls of generally uniform thickness with a generally frusto-conical outer surface. The wall thickness at the distal end 16 may be slightly reduced for decreasing discomfort to the patient. A pair of wings 18 may be provided at the enlarged proximal end to The dimensions are chosen so that when inserted in speculum 10, a portion of end cap 20 extends through the distal end of speculum 10 as shown in FIGURE 1.

The obturator stem 22 is formed to be rigid and for this reason is given a suitable cross-section, which as shown in FIGURES 3 and 4 is preferably X shaped. A rod having this cross-section can be readily molded. Handle 14 may be formed as an integral extension of the end of stem 22. The reason for using this crosssectioned shape is that a fiat or round stem of the size that can be accommodated in an instrument of this type formed of an inexpensive plastic would be slightly flexible thus allowing some movement of cap 20 relative to speculum 1% which is an undesirable condition causing discomfort to the patient.

Near the center of stem 22 are apair of tabs 24 that are formed integrally as part of stem 22. Tabs 24 provide projecting surfaces that engage the inside tapered wall surface 26 of speculum 14) at a taper region to thereby center stem 22 relative to speculum 10f Another important function of tabs 24 is that they provide a stable supporting position beyond which the obturator cannot advance in the speculum that prevents undesired relative movement between end cap 20 and speculum 10 during insertion. This limit positioning also prevents end cap 26 from ever extending completely through or causing splitting of the distal end of speculum 10.

The end 28 of stem 22 is enlarged and tapered to fit rigidly along the inside of end cap 20. End cap 20 may then be adhesively connected to stem 22 as by a suitable plastic cement.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiment is therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

What is claimed and desired to be secured by United States Letters Patent is:

1. In a medical diagnostic instrument:

(a) a disposable speculum of relatively thin-Walled, plastic material, said speculum having a substantially frusto-conical outer surface for insertion into a body cavity and an inside wall including a centrally located gradually tapered wall region providing a hollow interior; and

(b) an obturator carried within the speculum com prising:

(l) a smooth, rounded, frusto-conical member adapted for insertion from the proximal end of said speculum through its hollow interior to extend partially through the distal end thereof; and

(2) a stern for said obturator comprising a rod like member of plastic material secured at its distal end to said frusto-conical member and having a hand engaging portion at its proximal end; and

(3) means for centering the obturator stem in said speculum when the insertion member extends through the distal end of said speculum comprising stop means having essentially radially projecting surfaces located along a central portion of and integral with said stem and essentially longitudinally extending surfaces to abut the inside wall of said speculum at said centrally located gradually tapered wall region thereby centering the obturator within the speculum and reinforcing the stem against bending While preventing the inserting member on the obturator from passing completely through the distal end of said speculum.

2. The instrument as claimed in claim 1 wherein the cross-section of the rod-like member serving as the obturator stem is X shaped, the insertion member is a hollow, cup-shaped body, and the end of the rod-like member where the cup-shaped body is secured is tapered to fit along inside walls of the cup-shaped body and secured thereto by an adhesive.

3. In a medical diagnostic instrument:

(a) a disposable speculum of relatively thin-walled, plastic material, said speculum having a substantially frusto-conical outer surface for insertion into a body cavity and an inside wall including a centrally located gradually tapered Wall region providing a hollow interior; and

(b) an obturator carried within the speculum comprising:

(1) a smooth, rounded, frusto-conical member adapted for insertion from the proximal end of said speculum through its hollow interior to extend partially through the distal end thereof; and

(2) a stem for said obturator comprising a rodlike member of plastic material having an X shaped cross section, said rod-like member being secured at its distal end to said frusto-conical member and having a hand engaging portion at its proximal end; and

(3) means for centering the obturator stem in said speculum when the insertion member extends through the distal end of said speculum comprising positioning surfaces forming essentially radially projecting arcuately shaped tabs located along a central portion of and integral with said stem and extending essentially longitudinally along diametrically opposite sides of said stem to abut the inside wall of said speculum at said centrally located gradually tapered wall region thereby centering the obturator within the speculum and reinforcing the stem against bending while preventing the inserting member on the obturator from passing completely through the distal end of said speculum.

References Cited in the file of this patent UNITED STATES PATENTS Pennington Nov. 26, 1918 Moore June 12, 1962 FOREIGN PATENTS Italy Oct. 13, 1934 Great Britain Feb. 9, 1943 France Dec. 12, 1960

Claims (1)

1. IN A MEDICAL DIAGNOSTIC INSTRUMENT: (A) A DISPOSABLE SPECULUM OF RELATIVELY THIN-WALLED, PLASTIC MATERIAL, SAID SPECULUM HAVING A SUBSTANTIALLY FRUSTO-CONICAL OUTER SURFACE FOR INSERTION INTO A BODY CAVITY AND AN INSIDE WALL INCLUDING A CENTRALLY LOCATED GRADUALLY TAPERED WALL REGION PROVIDING A HOLLOW INTERIOR; AND (B) AN OBTURATOR CARRIED WITHIN THE SPECULUM COMPRISING: (1) A SMOOTH, ROUNDED, FRUSTO-CONICAL MEMBER ADAPTED FOR INSERTION FROM THE PROXIMAL END OF SAID SPECULUM THROUGH ITS HOLLOW INTERIOR TO EXTEND PARTIALLY THROUGH THE DISTAL END THEREOF; AND (2) A STEM FOR SAID OBTURATOR COMPRISING A ROD LIKE MEMBER OF PLASTIC MATERIAL SECURED AT ITS DISTAL END TO SAID FRUSTO-CONICAL MEMBER AND HAVING A HAND ENGAGING PORTION AT ITS PROXIMAL END; AND (3) MEANS FOR CENTERING THE OBTURATOR STEM IN SAID SPECULUM WHEN THE INSERTION MEMBER EXTENDS THROUGH THE DISTAL END OF SAID SPECULUM COMPRISING STOP MEANS HAVING ESSENTIALLY RADIALLY PROJECTING SURFACES LOCATED ALONG A CENTRAL PORTION OF AND INTEGRAL WITH SAID STEM AND ESSENTIALLY LONGITUDINALLY EXTENDING SURFACES TO ABOUT THE INSIDE WALL OF SAID SPECULUM AT SAID CENTRALLY LOCATED GRADUALLY TAPERED WALL REGION THEREBY CENTERING THE OBTURATOR WITHIN THE SPECULUM AND REINFORCING THE STEM AGAINST BENDING WHILE PREVENTING THE INSERTING MEMBER ON THE OBTURATOR FROM PASSING COMPLETELY THROUGH THE DISTAL END OF SAID SPECULUM.
US3132645A 1963-01-04 1963-01-04 Orificial diagnostic instrument Expired - Lifetime US3132645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3132645A US3132645A (en) 1963-01-04 1963-01-04 Orificial diagnostic instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3132645A US3132645A (en) 1963-01-04 1963-01-04 Orificial diagnostic instrument

Publications (1)

Publication Number Publication Date
US3132645A true US3132645A (en) 1964-05-12

Family

ID=22943447

Family Applications (1)

Application Number Title Priority Date Filing Date
US3132645A Expired - Lifetime US3132645A (en) 1963-01-04 1963-01-04 Orificial diagnostic instrument

Country Status (1)

Country Link
US (1) US3132645A (en)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374791A (en) * 1965-07-21 1968-03-26 Westerman Samuel Thomas Ear speculum
US3511243A (en) * 1967-07-18 1970-05-12 Frederic J Toy Apparatus for providing a breathing conduit communicating with the trachea at the base of the neck
US3866609A (en) * 1972-04-05 1975-02-18 Charles Howard Sparks Apparatus for growing graft tubes in place
US3976054A (en) * 1975-01-20 1976-08-24 Evans Howard F Nasopharyngeal speculum
US4013066A (en) * 1974-05-23 1977-03-22 Ovutime, Inc. Processes for menstrual cycle phase determination
US4048988A (en) * 1975-01-08 1977-09-20 Richard Wolf Gmbh Shutter for a rectoscope
US4117847A (en) * 1976-02-05 1978-10-03 Clayton Ralph S Colon catheter
US4164212A (en) * 1972-10-24 1979-08-14 Ovutime, Inc. Devices for menstrual cycle phase determination
EP0197879A2 (en) * 1985-04-09 1986-10-15 Izhak Bayer Endoscope particularly useful as an anoscope
US4712536A (en) * 1987-01-20 1987-12-15 Hawks Robert A Rectal speculum with obturator
US4779611A (en) * 1987-02-24 1988-10-25 Grooters Ronald K Disposable surgical scope guide
US4898169A (en) * 1987-05-08 1990-02-06 Boston Scientific Corporation Medical instrument for therapy of hemorrhoidal lesions
US4972827A (en) * 1989-02-06 1990-11-27 Fuji Photo Optical Co., Ltd. Guide device for percutaneous insertion of endoscope
US4978334A (en) * 1988-09-08 1990-12-18 Toye Frederic J Apparatus and method for providing passage into body viscus
US5135526A (en) * 1991-04-22 1992-08-04 Zinnanti Surgical Instruments, Inc. Electro-cautery speculum
WO1993007800A1 (en) * 1991-10-17 1993-04-29 Gyno Medical Holdings Pty. Ltd. A speculum
US5392764A (en) * 1993-06-18 1995-02-28 Swanson; Larry S. Gynecological speculum
US5746749A (en) * 1994-01-18 1998-05-05 Willard; Cindylee Rectovaginal surgical repair instrument
US5895351A (en) * 1998-02-06 1999-04-20 Arthrotek Inc. Tissue distracting cannula
US6142933A (en) * 1998-11-23 2000-11-07 Ethicon Endo-Surgery, Inc. Anoscope for hemorrhoidal surgery
US20030153850A1 (en) * 2002-01-16 2003-08-14 Davis Brian J. Method and apparatus for image-guided therapy
US20030187334A1 (en) * 2002-02-11 2003-10-02 Freespirit Unlimited Pty Ltd. Uterine and vaginal vault manipulator
US20060022563A1 (en) * 2004-07-29 2006-02-02 Takigen Manufacturing Co., Ltd. Door locking handle assembly with in-cabinet unlocking machanism
US20070051375A1 (en) * 2005-09-06 2007-03-08 Milliman Keith L Instrument introducer
US20070078486A1 (en) * 2003-06-20 2007-04-05 Tyco Healthcare Group Lp Surgical stapling device
US20080175992A1 (en) * 2004-08-03 2008-07-24 Chemetall Gmbh Process For Coating Fine Particles With Conductive Polymers
US20080275306A1 (en) * 2005-10-26 2008-11-06 Carlo Rebuffat Anoscope for Ano-Rectal Diagnostic and Surgery
US20100145148A1 (en) * 2008-12-09 2010-06-10 Tyco Healthcare Group, Lp Anoscope
US20110087075A1 (en) * 2009-10-08 2011-04-14 Thomas Wenchell Anoscope
US20120004611A1 (en) * 2010-07-03 2012-01-05 Deborah Solomon Soft dual-layer rectal speculum
EP2433551A1 (en) * 2010-09-28 2012-03-28 Fujifilm Corporation Endoscope apparatus
US8343185B2 (en) 2008-09-10 2013-01-01 Covidien Lp Surgical stapling device
US9872952B2 (en) * 2011-07-05 2018-01-23 Deborah Solomon Soft dual-layer rectal speculum

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1286083A (en) * 1918-07-01 1918-11-26 Sharp & Smith Rectal speculum.
GB551146A (en) * 1942-04-20 1943-02-09 Louis Van Lier Improvements in rectal and vaginal specula, proctoscopes, sigmoidoscopes and like surgical instruments
FR1251506A (en) * 1960-02-05 1961-01-20 light and magnifying devices to review medical devices, screening and diagnosis, including anuscope
US3038466A (en) * 1958-04-28 1962-06-12 Welch Allyn Inc Orificial instrument construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1286083A (en) * 1918-07-01 1918-11-26 Sharp & Smith Rectal speculum.
GB551146A (en) * 1942-04-20 1943-02-09 Louis Van Lier Improvements in rectal and vaginal specula, proctoscopes, sigmoidoscopes and like surgical instruments
US3038466A (en) * 1958-04-28 1962-06-12 Welch Allyn Inc Orificial instrument construction
FR1251506A (en) * 1960-02-05 1961-01-20 light and magnifying devices to review medical devices, screening and diagnosis, including anuscope

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374791A (en) * 1965-07-21 1968-03-26 Westerman Samuel Thomas Ear speculum
US3511243A (en) * 1967-07-18 1970-05-12 Frederic J Toy Apparatus for providing a breathing conduit communicating with the trachea at the base of the neck
US3866609A (en) * 1972-04-05 1975-02-18 Charles Howard Sparks Apparatus for growing graft tubes in place
US4164212A (en) * 1972-10-24 1979-08-14 Ovutime, Inc. Devices for menstrual cycle phase determination
US4013066A (en) * 1974-05-23 1977-03-22 Ovutime, Inc. Processes for menstrual cycle phase determination
US4048988A (en) * 1975-01-08 1977-09-20 Richard Wolf Gmbh Shutter for a rectoscope
US3976054A (en) * 1975-01-20 1976-08-24 Evans Howard F Nasopharyngeal speculum
US4117847A (en) * 1976-02-05 1978-10-03 Clayton Ralph S Colon catheter
EP0197879A2 (en) * 1985-04-09 1986-10-15 Izhak Bayer Endoscope particularly useful as an anoscope
US4690132A (en) * 1985-04-09 1987-09-01 Izhak Bayer Endoscope particularly useful as an anoscope
EP0197879A3 (en) * 1985-04-09 1988-02-24 Amnon Adoram Endoscope particularly useful as an anoscope
US4712536A (en) * 1987-01-20 1987-12-15 Hawks Robert A Rectal speculum with obturator
US4779611A (en) * 1987-02-24 1988-10-25 Grooters Ronald K Disposable surgical scope guide
US4898169A (en) * 1987-05-08 1990-02-06 Boston Scientific Corporation Medical instrument for therapy of hemorrhoidal lesions
US4978334A (en) * 1988-09-08 1990-12-18 Toye Frederic J Apparatus and method for providing passage into body viscus
US4972827A (en) * 1989-02-06 1990-11-27 Fuji Photo Optical Co., Ltd. Guide device for percutaneous insertion of endoscope
US5135526A (en) * 1991-04-22 1992-08-04 Zinnanti Surgical Instruments, Inc. Electro-cautery speculum
WO1993007800A1 (en) * 1991-10-17 1993-04-29 Gyno Medical Holdings Pty. Ltd. A speculum
US5392764A (en) * 1993-06-18 1995-02-28 Swanson; Larry S. Gynecological speculum
US5746749A (en) * 1994-01-18 1998-05-05 Willard; Cindylee Rectovaginal surgical repair instrument
US5895351A (en) * 1998-02-06 1999-04-20 Arthrotek Inc. Tissue distracting cannula
US6142933A (en) * 1998-11-23 2000-11-07 Ethicon Endo-Surgery, Inc. Anoscope for hemorrhoidal surgery
US20030153850A1 (en) * 2002-01-16 2003-08-14 Davis Brian J. Method and apparatus for image-guided therapy
US20030187334A1 (en) * 2002-02-11 2003-10-02 Freespirit Unlimited Pty Ltd. Uterine and vaginal vault manipulator
US20080210739A1 (en) * 2003-06-20 2008-09-04 Tyco Healthcare Group Lp Surgical Stapling Device
US20070078486A1 (en) * 2003-06-20 2007-04-05 Tyco Healthcare Group Lp Surgical stapling device
US20060022563A1 (en) * 2004-07-29 2006-02-02 Takigen Manufacturing Co., Ltd. Door locking handle assembly with in-cabinet unlocking machanism
US20080175992A1 (en) * 2004-08-03 2008-07-24 Chemetall Gmbh Process For Coating Fine Particles With Conductive Polymers
US20070051375A1 (en) * 2005-09-06 2007-03-08 Milliman Keith L Instrument introducer
US8337401B2 (en) 2005-10-26 2012-12-25 Covidien Ag Anoscope for ano-rectal diagnostic and surgery
US9307896B2 (en) 2005-10-26 2016-04-12 Covidien Ag Anoscope for ano-rectal diagnostic and surgery
US8956282B2 (en) 2005-10-26 2015-02-17 Covidien Ag Anoscope for ano-rectal diagnostic and surgery
US8740781B2 (en) 2005-10-26 2014-06-03 Covidien Ag Anoscope for ano-rectal diagnostic and surgery
US20080275306A1 (en) * 2005-10-26 2008-11-06 Carlo Rebuffat Anoscope for Ano-Rectal Diagnostic and Surgery
US8343185B2 (en) 2008-09-10 2013-01-01 Covidien Lp Surgical stapling device
US9113871B2 (en) 2008-09-10 2015-08-25 Covidien Lp Surgical stapling device
US8360295B2 (en) 2008-09-10 2013-01-29 Covidien Lp Surgical stapling device
US9358006B2 (en) 2008-09-10 2016-06-07 Covidien Lp Surgical stapling device
US20160038015A1 (en) * 2008-12-09 2016-02-11 Covidien Lp Anoscope
US20130103072A1 (en) * 2008-12-09 2013-04-25 Thomas Wenchell Anoscope
US8926505B2 (en) * 2008-12-09 2015-01-06 Covidien Lp Anoscope
US20100145148A1 (en) * 2008-12-09 2010-06-10 Tyco Healthcare Group, Lp Anoscope
US8348837B2 (en) * 2008-12-09 2013-01-08 Covidien Lp Anoscope
US9636010B2 (en) * 2008-12-09 2017-05-02 Covidien Lp Anoscope
US9192291B2 (en) 2008-12-09 2015-11-24 Covidien Lp Anoscope
US9204789B2 (en) 2009-10-08 2015-12-08 Covidien Lp Asymmetrical anoscope
US20110087075A1 (en) * 2009-10-08 2011-04-14 Thomas Wenchell Anoscope
US20120004611A1 (en) * 2010-07-03 2012-01-05 Deborah Solomon Soft dual-layer rectal speculum
EP2433551A1 (en) * 2010-09-28 2012-03-28 Fujifilm Corporation Endoscope apparatus
US9872952B2 (en) * 2011-07-05 2018-01-23 Deborah Solomon Soft dual-layer rectal speculum

Similar Documents

Publication Publication Date Title
US3399674A (en) Catheter placement unit
US3136316A (en) Catheter
US3459184A (en) Intravenous catheter placement unit
US3630198A (en) Catheter placement device
US3330278A (en) Hypodermic needle for a cannula placement unit
US3250271A (en) Intrauterine device
US3667465A (en) Applicator tubes for suppositories and the like
US3334631A (en) Tracheal tube assembly
US2767703A (en) Exploratory device for cell specimens
US4969875A (en) Drainage device for medical use
US5237985A (en) Uterine retractor
US4584991A (en) Medical device for applying therapeutic radiation
US6050976A (en) In-line retractable safety catheter needle insertion assembly
US5474573A (en) Toggle suture handling means and method
US1926900A (en) Catamenial device
US5197465A (en) Gauge for measuring tracheotomy stoma
US3740853A (en) Dental prophy angle
US4537186A (en) Contraceptive device
US504424A (en) Oscar de pezzer
US5336238A (en) Surgical instrument capable of disassembly
US5487377A (en) Uterine manipulator and manipulator tip assembly
US5195979A (en) Set of instruments for the uterinal embryo transfer and intra-uterine insemination
US3336927A (en) Surgical instrument for bile duct explorations
US4143656A (en) Instrument and method for inserting an intrauterine contraceptive device
US3964488A (en) Tracheal tube