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GB2443165A - A speculum with a threaded adjustment means incorporating a limit or stop - Google Patents

A speculum with a threaded adjustment means incorporating a limit or stop Download PDF

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Publication number
GB2443165A
GB2443165A GB0621181A GB0621181A GB2443165A GB 2443165 A GB2443165 A GB 2443165A GB 0621181 A GB0621181 A GB 0621181A GB 0621181 A GB0621181 A GB 0621181A GB 2443165 A GB2443165 A GB 2443165A
Authority
GB
United Kingdom
Prior art keywords
thread
threaded rod
lever
stationary
distal end
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.)
Withdrawn
Application number
GB0621181A
Other versions
GB0621181D0 (en
Inventor
Yih-Chiou Tsai
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.)
Individual
Original Assignee
Individual
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
Priority to FR0654430A priority Critical patent/FR2907326B3/en
Application filed by Individual filed Critical Individual
Priority to GB0621181A priority patent/GB2443165A/en
Publication of GB0621181D0 publication Critical patent/GB0621181D0/en
Publication of GB2443165A publication Critical patent/GB2443165A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments 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
    • A61B1/303—Instruments 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 vagina, i.e. vaginoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments 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
    • A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Gynecology & Obstetrics (AREA)
  • Reproductive Health (AREA)
  • Endoscopes (AREA)
  • Surgical Instruments (AREA)

Abstract

A vaginal speculum has a stationary bracket (10), a pivoting bracket (20) and a nut (60). The stationary bracket (10) has a stationary lever (13) with a through hole (14) defined through the stationary lever (13). The pivoting bracket (20) connects pivotally to the stationary bracket (10) and has a pivoting lever (23) with a threaded rod (24) extending from the pivoting lever (23) toward the stationary lever (13) and through the through hole (14). The threaded rod (24) has a thread (240) formed around the threaded rod (24), a distal end (249) extending through the through hole (14) and a limit (242) aligned with the thread (240). The nut (60) is screwed detachably around the threaded rod (24), is mounted between the stationary lever (13) and the distal end (249) of the threaded rod (24), selectively abuts the stationary lever (13) and will be stopped by the limit (242) from being detached from the threaded rod (24).

Description

VAGINAL SPECULUM
The present invention relates to a vaginal speculum,and more J)articularly to a vaginal speculum that is convenient for medical personnel to operate, A vaginal speculum is used to expand a patient's vagina to allow the vagina to be examined easily or to collect secretions from the vagina. The vaginal speculum is plastic and is disposable.
With reference to Figs. 6 and 7, a conventional vaginal speculum has a stationary bracket (40), a pivoting bracket (50) and a nut (60).
The stationary bracket (40) has an upper connector (41) and an upper tong (42). The upper connector (41) has a bottom and a stationary lever (43). The stationary lever (43) extends out from the bottom and has a through hole (44).
rihe through hole is defined through the stationary lever (43). The upper tong (42) is somewhat tapered, protrudes from the upper connector (41) and has a proximal end and a distal end. The proximal end is mounted on the upper connector (41).
With further reference to Fig. 8, the pivoting bracket (50) connects pivotally to the stationary bracket (40) and has a base (51) and a lower tong (52).
The base (51) connects pivotally to the upper connector (41) and has a bottom and a pivoting lever (53). The pivoting lever (53) extends out from the bottom at an angle (a) forward of the stationary lever (43). The pivoting levea-(53) has an inner side. The inner side faces the stationary lever (43) and has a threaded rod (54). The threaded rod (54) exlcnds from the inner side, corresponds to and extends through the through hole (44) in the stationary lever (43) and has a
I
length, a distal end (541) and a thread. The distal end (54.1) extends through the through hole (44). The thread is formed the entire length of the threaded rod (54).
The lower tong (52) protrudes from the base (51), corresponds to the upper tong (42), selectively abuts the upper tong (42), is slightly tapered and has a proximal end and a distal end. The proximal end is mounted on the base (51).
To use the vaginal speculum, the distal ends of the upper tong (42) and the lower tong (52) are inserted into the vagina and are separated from each other and spread the vagina when medical personnel squeeze the pivoting lever (53) toward the stationary lever (43).
The nut (60) is screwed detachably onto the threaded rod (54) between the stationary lever (43) and the distal end (541) of the threaded rod (54), selectively abuts the stationary lever (43), s larger than the through hole (44) in Ihe stationary lever (43) and has a threaded hole (61). The threaded hole (61) is defined through the nut (60), is screwed onto the threaded rod (54) and has an inner surface and a thread. The thread is formed on the inner surface of the threaded hole (61) and corresponds to the thread on the threaded rod (54) to screw onto the threaded rod (54) smoothly. The nut (60) can be screwed onto the threaded rod (54) to press against the stationary lever (43) to draw the pivoting lever (53) toward the stationary lever (43) so the angle (a) reduces and the lower long (52) separates from the upper tong (42) a desired amouiit.
However, the nut (60) is screwed onto the threaded rod (54) loosely to make adjusting the nut (60) on the threaded rod (54) convenient for medical personnel. However, the threaded rod (54), especially the distal end (541), does not have a limit to stop the nut (60) as it approaches the distal end (541) of the * . I:hreaded rod (54), so the nut (60) may inadvertently disengage from the threaded rod (54). Reassembling the nut (60) and the threaded rod (54) will waste the medical personnel's time. Furthermore, the nut (60) may drop. The medical Personnel may not be able to find it, it may drop on the floor and be contaminated, or it may drop on a patient's body and make the patient nervous.
The primary objective of the present invention is to provide a vaginal pecuJum, and more particularly to a vaginal speculum that is convenient for medical personnel to operate.
To achieve the objective, the vaginal speculutn in accordance with the Present invention has a stationary bracket, a pivoting bracket and a nut, The stationary bracket has a stationary lever. The stationary lever has a through hole defined through the stationary lever. The pivoting bracket connects pivotally to the stationary bracket and has a pivoting lever. The pivoting lever has a threaded rod protruding from the pivoting lever toward and extending through the through hole in the stationary lever. The threaded rod has an outer surface, a thread, a distal end and a limit. The thread is formed on the outer surface, The distal end extends through the through hole. The limit is aligned with the thread. The nut is screwed detachably around the threaded rod between the stationary lever and the distal end of the threaded rod, selectively abuts the stationary lever and will be stopped by the limit from inadvertently detaching from the threaded rod.
IN THE DRAWINGS: Fig. us a perspective view of a vaginal speculum in accordance with the prccnt invntion; 1?ig. 2 is a cross-sectional side view of a stationary lever, a threaded rod and a nut of the vaginal speculum in Fig. I with a smooth thread before the nut screws onto the threaded rod; Fig. 3 is a cross sectional side view of a stationary lever, a threaded rod and a nut of the vaginal speculum in Fig. 2 with a smooth thread after the nut ;crews onto the threaded rod; Fig. 4.is a cross-sectional side view of a stationary lever, a threaded rod and a nut of the vaginal speculurn in Fig. 1 with an enlarged thread on the threaded rod; Fig. 5 is a cross-sectional side view of a stationary lever, a threaded rod and a nut of the vaginal speculum in Fig. I with a fine thread on the threaded rod;.
Fig. 6 is a perspective view of a conventional aginaI speculurn in accordance with the prior art with a stationary lever, a threaded rod and a nut; Fig. 7 is a side view in partial section of the conventional vaginal speculum in Fig. 6 with the nut screwed detachably around the threaded rod; Fig. 8 is a side view in partial section of the conventional vaginal speculurn in Fig. 6 with the nut abutting the stationary lever.
* With reference to Fig. 1, a vaginal speculum in accordance with the present invention has a stationary bracket (10), a pivoting bracket (20) and a nut (60).
The stationary bracket (10) has an upper connector (U) and an upper tong (12). The upper connector (11) has a bottom and a stationary lever (13). The aationary lever (13) protrudes from the bottom of the upper connector (11) and has a through hole (14). The through hole (14) is defined through the stationary lever (13). The upper tong (12) protrudes from the upper connector (11) and has
S
a proximal end and a distal end. The proximal end is mounted on the upper connector (11). The distal end is narrower than the proximal end.
The pivoting bracket (20) connects pivotalty to the stationary bracket (10) and has a base (21) and a lower tong (22). The base (2.1) connects pivotally to the upper connector (11) and has a bottom and a pivoting lever (23).
With further reference to Figs. 2, 3, 4 and 5, the pivoting lever (23) extends out from the bottom at an angle (a) between the pivoting lever (23) and the stationary lever (13). The angle (a) is reduced and the upper and lower tongs (12, 22) separate from each other when the pivoting lever (23) is pulled toward the stationary lever (13). The pivoting lever (23) has an inner side. The inner side faces the stationary lever (13) and has a threaded rod (24). The threaded rod (24) protrudes from the inner side, corresponds to and extends through the through hole (14) in the stationary lever (13) and has a length, a thread (240), a distal end (249) arid a limit. The thread (240) is formed along the length of and around the i:hreaded rod (24) and has a thread pitch. The distal end (249) extends through the through hole (14) in the stationary lever (13). The limit is aligned with the thread (240), is near the distal end (249) of the threaded rod (24) to make the thread (240) irregular and may be a smooth thread (241), an enlarged thread (242) or a tine thread (243).
The smooth thread (241) is a ring mounted around part of the thread (24(Y) near the distal end (249) of the threaded rod (24) and has an outer surface. The outer surface of the smooth thread (241) may have an external thread (241').
The enhuged thread (242) is aligned with the thread (240) on the Ihreaded rod (24), is mounted near the distal end (249) of the threaded rod (24) * 6 and is larger than the thread (240) on the threaded rod (24).
The fine thread (243) is aligned with the thread (240) on the threaded rod (24) and has a thread pitch. The thread pitch of the fine thread (244) is narrower than the thread pitch of the thread (240) on the threaded rod (24).
The lower tong (22) extends from the base (21), corresponds to the upper tong (12), selectively abuts the upper tong (12) and has a proximal end and a distal end. The proximal end is mounted on and protrudes from the base (21).
The distal end is narrower than the proximal end. The distal ends of the upper tong (12) and the lower tong (22) extend into the vagina when the vaginal speculurn is used, will separate from each other when medical personnel pull the pivoting lever (23) toward the stationary lever (13) and will expand the vagina.
The nut (60) is screwed detachably around the threaded rod (24) between the stationary lever (13) and the distal end (249) of the threaded rod (24),' is larger than the through hole (14) in the stationary lever (13), selectively abuts the stationary lever (13) and has a threaded hole (61.). The threaded hole (61) is defined through the rwt (60), is screwed around the threaded rod (24) and has an inner thread (62), The inner thread (62) corresponds to the thread (240) on the threaded rod (24) to screw smoothly on the threaded rod (24). The thread (62) may press against the smooth thread (241) to form the external thread (241') on the outer surface othe smooth thread (241) when the (60) nut is screwed forcibly through the limit. The external thread (241') corresponds to the thread (62) in the nut (60). The nut (60) can be threaded through the threaded rod (24) to approach and abut the stationary lever (13) to hold the pivoting lever (23) at a specific angle (a) relative to the stationary lever (13) and hold the upper and lower tongs (12, 22) apart.
Because the threaded rod (24) has a limit near the distal end (249) of the threaded rod (24), the nut (60) cannot inadvertently screw through the limit unless the nut (60) is forced purposely to do so. Thus, the nut (60) wIll not disengage from the threaded rod (24) by accident, will not drop on the floor or a patient's body and will not be lost. Moreover, the nut (60) is loosely screwed around the threaded rod (24), so medical personnel can rapidly screw the nut (60) toward arid against the stationary lever (13).

Claims (5)

  1. CLAIMS: 1. A vaginal speculum comprising: a stationary bracket (10)
    having an upper connector (II) having a bottom and a stationary lever (13) protruding from the bottom of the upper connector (11) and having a through hole (14) defined through the stationary lever (13); and an upper tong (12) protruding from the upper connector (11) and having proximal end being mounted on the upper connector (11) and a distal end berng narrower than the proximal end; a pivoting bracket (20) connecting pivotally to the stationary bracket (10) tnd having a base (21) connecting pivotally to the upper connector (11) and having a bottom; and * a pivoting lever (23) extending Out from the bottom of the base (21) at an angle (a) between the pivoting lever (23) and the stationary lever * (13) and having an inner side facing the stationary lever (13) and having a threaded rod (24) protruding from the inner side, corresponding to and extending through the through hole (14) in the stationary lever (13) and having a length; a thread (240) being formed along the length of and around the threaded rod (24) and having a thread pitch; a distal end (249) extending through the through hole (14) in the stationary lever (13); and a limit being aligned with the thread (240) and being mounted near the distal end (249) of the threaded rod (24); and a lower tong (22) extending from the base (21), corresponding to the upper tong (12), selectively abutting the upper tong (12) and having a proximal end being mounted on and protruding from the base (21) and a distal end being narrower than the proximal end; and a nut (60) being.screwed detachably around the threaded rod (24) between the stationary lever (13) and the distal end (249) of the threaded rod (24), being larger than the through hole (14) in the stationary lever (13), selectively abutting the stationary lever (13) and having a threaded hole (6!) defined through the nut (60), screwed around the threaded rod (24) and having an inner thread (62) corresponding to the thread (240) on the threaded rod (24)
  2. 2. The vaginal speculum as claimed in claim 1, wherein the limit is a smooth thread (241) being a ring mounted around part of the thread (240) and having an outer surface.
  3. 3. The vaginal speculum as claimed in claim 1, wherein the limit is an enlarged thread (242) aligned with the thread (240) on the threaded rod (24) and being larger than the thread (240) on the threaded rod (24).
  4. 4. The vaginal speculum as claimed in claim 1, wherein the limit isa fine thread (244) aligned with the thread (240) on the threaded rod (24) and having a thread pitch being narrower than the thread pitch of the thread (240) on the threaded rod (24).
  5. 5. The vaginal speculum as claimed in claim 2, wherein the smooth thread (241) has an external thread (24P).
GB0621181A 2006-10-21 2006-10-25 A speculum with a threaded adjustment means incorporating a limit or stop Withdrawn GB2443165A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0654430A FR2907326B3 (en) 2006-10-21 2006-10-21 VAGINAL SPECULUM.
GB0621181A GB2443165A (en) 2006-10-21 2006-10-25 A speculum with a threaded adjustment means incorporating a limit or stop

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0654430A FR2907326B3 (en) 2006-10-21 2006-10-21 VAGINAL SPECULUM.
GB0621181A GB2443165A (en) 2006-10-21 2006-10-25 A speculum with a threaded adjustment means incorporating a limit or stop

Publications (2)

Publication Number Publication Date
GB0621181D0 GB0621181D0 (en) 2006-12-06
GB2443165A true GB2443165A (en) 2008-04-30

Family

ID=39710983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0621181A Withdrawn GB2443165A (en) 2006-10-21 2006-10-25 A speculum with a threaded adjustment means incorporating a limit or stop

Country Status (2)

Country Link
FR (1) FR2907326B3 (en)
GB (1) GB2443165A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2181646A1 (en) * 2008-10-29 2010-05-05 Pelican Healthcare Limited Speculum
CN110811533A (en) * 2019-12-08 2020-02-21 湖南平安医械科技有限公司 Self-destruction vaginal dilator
EP3846674A4 (en) * 2018-09-04 2022-06-29 Cyalume Technologies, Inc Vaginal speculum
AU2021225252B1 (en) * 2021-09-03 2023-01-12 Yih-Chiou Tsai Vaginal speculum

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB540806A (en) * 1940-05-30 1941-10-30 Louis Van Lier Improvements in and relating to surgical specula
GB1454769A (en) * 1973-12-17 1976-11-03 Keystone Consolidated Ind Inc Locking thread fastener
US4686966A (en) * 1986-02-24 1987-08-18 Tsai Joy Y Disposable duckbill speculum
WO1995031131A1 (en) * 1994-05-18 1995-11-23 Leonidas Mamas Double screw bivalve speculum
EP1512367A1 (en) * 2003-09-05 2005-03-09 Matheson Medical Limited Physiological speculum
US6960166B1 (en) * 2002-11-05 2005-11-01 Irwin Lane Wong Speculum having ultrasound probe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB540806A (en) * 1940-05-30 1941-10-30 Louis Van Lier Improvements in and relating to surgical specula
GB1454769A (en) * 1973-12-17 1976-11-03 Keystone Consolidated Ind Inc Locking thread fastener
US4686966A (en) * 1986-02-24 1987-08-18 Tsai Joy Y Disposable duckbill speculum
WO1995031131A1 (en) * 1994-05-18 1995-11-23 Leonidas Mamas Double screw bivalve speculum
US6960166B1 (en) * 2002-11-05 2005-11-01 Irwin Lane Wong Speculum having ultrasound probe
EP1512367A1 (en) * 2003-09-05 2005-03-09 Matheson Medical Limited Physiological speculum

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2181646A1 (en) * 2008-10-29 2010-05-05 Pelican Healthcare Limited Speculum
GB2464934B (en) * 2008-10-29 2012-10-31 Pelican Healthcare Ltd Speculum
EP3846674A4 (en) * 2018-09-04 2022-06-29 Cyalume Technologies, Inc Vaginal speculum
CN110811533A (en) * 2019-12-08 2020-02-21 湖南平安医械科技有限公司 Self-destruction vaginal dilator
AU2021225252B1 (en) * 2021-09-03 2023-01-12 Yih-Chiou Tsai Vaginal speculum

Also Published As

Publication number Publication date
GB0621181D0 (en) 2006-12-06
FR2907326B3 (en) 2008-09-19
FR2907326A3 (en) 2008-04-25

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