[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

US3840005A - Dual contraceptive device - Google Patents

Dual contraceptive device Download PDF

Info

Publication number
US3840005A
US3840005A US00088559A US8855970A US3840005A US 3840005 A US3840005 A US 3840005A US 00088559 A US00088559 A US 00088559A US 8855970 A US8855970 A US 8855970A US 3840005 A US3840005 A US 3840005A
Authority
US
United States
Prior art keywords
uterus
elongated member
needle
thread
plastic
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
US00088559A
Inventor
J Walker
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
Application filed by Individual filed Critical Individual
Priority to US00088559A priority Critical patent/US3840005A/en
Application granted granted Critical
Publication of US3840005A publication Critical patent/US3840005A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F6/00—Contraceptive devices; Pessaries; Applicators therefor
    • A61F6/06—Contraceptive devices; Pessaries; Applicators therefor for use by females
    • A61F6/14—Contraceptive devices; Pessaries; Applicators therefor for use by females intra-uterine type
    • A61F6/142—Wirelike structures, e.g. loops, rings, spirals
    • A61F6/144—Wirelike structures, e.g. loops, rings, spirals with T-configuration

Definitions

  • ABSTRACT A dual contraceptive device of the intra-uterine device or IUD type which is inserted inside the uterus to assist in preventing unwanted pregnancy.
  • An elon- Oct. 8, 1974 gated rod-like member made from plastic, stainless steel or the like and approximately less than the internal length of the uterus in which it is inserted is bendable into a shape corresponding approximately with the curvature of the internal shape of the uterus.
  • a flexible suture thread made of inert material such as braided silk or plastic material has one end attached to the lower end of the elongated member and the other end provided with a suture needle.
  • Thin, flat leaves project outwardly from the elongated member at spaced locations therealong and are in alignment generally conforming to the over all tapered shape of the inside of the uterus and provide barriers to interfere with and impede the travel of the spermatazoa.
  • the elongated member After appropriate dilating and sounding of the uterus the elongated member would be approximately preshaped by bending and then inserted into the uterine cavity and the suture thread and the needle would still be exposed. Using a needle holder instrument the needle would then be passed through the mouth of the cervix and a small button of soft inert material such as plastic like polyethylene is advanced on the thread to secure it against the side of the cervix. A special lock loop is placed to permit the button to advance but not to recede. The remaining excess thread with the needle is cut and removed. The length of thread remaining is only long enough to allow very limited movement of the elongated member and to prevent it from becoming dislodged and expelled which is not unusual in the case of other IUD.
  • the prior art includes the Lippes loop which is a flat, sinuous and spring member which is elongated for insertion into the uterus and then permitted to return to its sinuous condition.
  • the use of foreign agents placed in the uterus is quite old in the art and is known to prevent pregnancy but it is not known exactly how or why it is done and probably results from a natural function to reject pregnancy when there are foreign objects in the uretus.
  • the Lippes loop apparently does not lock or obstruct the spermatazoa to prevent it from reaching the ovum in the tube for conception to take place and probably functions after conception has taken place in a tube to prevent the fertilized ovum from attaching itself to the wall of the lining of the uterus which is necessary to a proper pregnancy.
  • the Lippes loop is not infallible and pregnancy can and has occurred in spite of the presence of the loop. Also, for reasons not entirely known the uterus will reject the loop and it becomes dislodged or displaced and must be reinserted.
  • the present IUD is an elongated member which can be bent to be preshaped and is installed in the uterus and tacked in place by a small suture so that it cannot become displaced under normal conditions. Also, it has small leaf-like branches which project from each side and which are shorter near one end and longer near the other and progressively longer from the shorter end so as to offer obstruction to the spermatazoa itself thereby tending to prevent some of the spermatazoa from reaching the ovum.
  • the present device not only serves the usual function of an IUD to prevent pregnancy in some instances from its mere presence within the uterus but in addition offers the dual advantage of preventing some of the spermatazoa from reaching a point of conception. Perhaps a principal advantage of the present IUD resides in solving the problem of dislodgementor displacement which is common to other IUD s.
  • FIG. 1 is a perspective view of the form of the present invention prior to installation.
  • FIG. 2 is a top plan view of the IUD shown in FIG. 1 with dimensions to illustrate typical size.
  • FIG. 3 is a diagrammatic view of a section through the uterus showing the present device of FIG. 1 installed therein and with the excess suture thread removed after installation.
  • the device is designated generally by reference numeral l0 and comprises an elongated member 12 which may be made from stainless steel, plastic, plastic coated metal wire or any other suitable material which has the characteristic of being bendable or deformable so that it can be shaped prior to installation and will retain its shape. If a plastic material is used it would have as a characteristic not returning to original shape and therefore in the terminology of the plastic plate having little memory.
  • leaves or baffles 14, 16, 18 and 20 Positioned on the elongated member 12 at different places in spaced relationship therealong is a plurality of limbs, leaves or baffles 14, 16, 18 and 20 which are progressively longer as you go from the bottom leaf 14 to the top leaf 20 and which are substantially in alignment so that the edges on the opposite sides such'as the edge 22 on leaf 20 or the edge 24 on leaf 14 are in the same plane.
  • the leaves or walls 14, etc. are preferably made from material such as heavy plastic film which is soft and easily bent so as to be comfortable and to conform to the space within the uterus designated generally by reference numeral 30 in FIG. 3.
  • Elongated member 12 has initially a long suture thread 32 attached thereto to which is attached a suture needle 34 to be used with a separate surgical button 36 having four suture openings 38 therein.
  • the IUD 10 is installed to its position shown in FIG. 3 in the following manner:
  • the IUD 10 is inserted and the suture thread 32 would extend from the uterus opening 38.
  • the needle 34 is manipulated to be passed through the mouth 40 of the cervix.
  • the small surgical button 36 of soft inert material such as polyethylene plastic, is advanced on the thread from the needle 34 to secure it against the side of the cervix and a special lock loop is placed to permit the button 36 to advance but-not to recede.
  • the conventional IUD although not requiring preparation for coitus has the following undesirable effects which are not present in any noticeable amount in the present device.
  • the spontaneous expulsion rate varies from 8 percent to 15 percent whereas the expulsion rate for the proposed device is minimal and perhaps even zero if properly installed and constructed.
  • Theconventional intra-uterine device occasionally has been known to perforate the uterine wall and mingle with the intestines and although this is a rare occurrence and a dangerous complication it should be virtually eliminated with the present de vice.
  • the device 10 may take a little more time and perhaps a little more skill to place than with other IUDs. There could be more impediment to the egress of menstrual flow but it is believed to be minimal.
  • a flexible, filament-like member such as a said elongated members are wide, flat leaves progressively longer as measured from the elongated member outwardly from one end of the elongated member in spaced relation to the other end.
  • said leaves are substantially straight, planar members constructed from heavy film or the like and project from opposite sides of said elongated member in spaced relation from one end to the other.

Landscapes

  • Health & Medical Sciences (AREA)
  • Reproductive Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Surgical Instruments (AREA)

Abstract

A dual contraceptive device of the intra-uterine device or IUD type which is inserted inside the uterus to assist in preventing unwanted pregnancy. An elongated rod-like member made from plastic, stainless steel or the like and approximately less than the internal length of the uterus in which it is inserted is bendable into a shape corresponding approximately with the curvature of the internal shape of the uterus. A flexible suture thread made of inert material such as braided silk or plastic material has one end attached to the lower end of the elongated member and the other end provided with a suture needle. Thin, flat leaves project outwardly from the elongated member at spaced locations therealong and are in alignment generally conforming to the over all tapered shape of the inside of the uterus and provide barriers to interfere with and impede the travel of the spermatazoa. After appropriate dilating and sounding of the uterus the elongated member would be approximately preshaped by bending and then inserted into the uterine cavity and the suture thread and the needle would still be exposed. Using a needle holder instrument the needle would then be passed through the mouth of the cervix and a small button of soft inert material such as plastic like polyethylene is advanced on the thread to secure it against the side of the cervix. A special lock loop is placed to permit the button to advance but not to recede. The remaining excess thread with the needle is cut and removed. The length of thread remaining is only long enough to allow very limited movement of the elongated member and to prevent it from becoming dislodged and expelled which is not unusual in the case of other IUD.

Description

United States Patent [191 Walker DUAL CONTRACEPTIVE DEVICE [76] Inventor: John W. Walker, 558 Medlock Rd,
Decatur, Ga. 30030 [22] Filed: Nov. 12, 1970 [21] Appl. No.: 88,559
[52] US. Cl. 128/130 [51] Int. Cl. A611 5/46 [58] Field of Search 128/130, 127, 128, 131,
[56] References Cited UNITED STATES PATENTS 897,050 8/1908 Beck 128/127 1,896,071 2/1933 Clark t 128/130 2,564,177 8/1951 Schmitt t 128/131 3,308,470 3/1967 Bell t 343/7925 3,454,004 7/1967 Leininger... 128/130 3,467,089 9/1969 Hassen 128/130 3,513,848 5/1970 Winston 128/335 3,598,115 8/1971 Horne 128/130 Primary Examiner-Richard A. Gaudet Assistant Examiner-G. F. Dunne Attorney, Agent, or Firm-Patrick F. Henry [57] ABSTRACT A dual contraceptive device of the intra-uterine device or IUD type which is inserted inside the uterus to assist in preventing unwanted pregnancy. An elon- Oct. 8, 1974 gated rod-like member made from plastic, stainless steel or the like and approximately less than the internal length of the uterus in which it is inserted is bendable into a shape corresponding approximately with the curvature of the internal shape of the uterus. A flexible suture thread made of inert material such as braided silk or plastic material has one end attached to the lower end of the elongated member and the other end provided with a suture needle. Thin, flat leaves project outwardly from the elongated member at spaced locations therealong and are in alignment generally conforming to the over all tapered shape of the inside of the uterus and provide barriers to interfere with and impede the travel of the spermatazoa.
'After appropriate dilating and sounding of the uterus the elongated member would be approximately preshaped by bending and then inserted into the uterine cavity and the suture thread and the needle would still be exposed. Using a needle holder instrument the needle would then be passed through the mouth of the cervix and a small button of soft inert material such as plastic like polyethylene is advanced on the thread to secure it against the side of the cervix. A special lock loop is placed to permit the button to advance but not to recede. The remaining excess thread with the needle is cut and removed. The length of thread remaining is only long enough to allow very limited movement of the elongated member and to prevent it from becoming dislodged and expelled which is not unusual in the case of other IUD.
5 Claims, 3 Drawing Figures DUAL CONTRACEPTIVE DEVICE BACKGROUND OF THE INVENTION 1. Field of the Invention Contraceptive devices particularly intra-uterine devices, (IUD) in the general field of medical appliances and attachments.
2. Description of the Prior Art The prior art includes the Lippes loop which is a flat, sinuous and spring member which is elongated for insertion into the uterus and then permitted to return to its sinuous condition. The use of foreign agents placed in the uterus is quite old in the art and is known to prevent pregnancy but it is not known exactly how or why it is done and probably results from a natural function to reject pregnancy when there are foreign objects in the uretus. The Lippes loop apparently does not lock or obstruct the spermatazoa to prevent it from reaching the ovum in the tube for conception to take place and probably functions after conception has taken place in a tube to prevent the fertilized ovum from attaching itself to the wall of the lining of the uterus which is necessary to a proper pregnancy. The Lippes loop is not infallible and pregnancy can and has occurred in spite of the presence of the loop. Also, for reasons not entirely known the uterus will reject the loop and it becomes dislodged or displaced and must be reinserted.
SUMMARY OF THE INVENTION The present IUD is an elongated member which can be bent to be preshaped and is installed in the uterus and tacked in place by a small suture so that it cannot become displaced under normal conditions. Also, it has small leaf-like branches which project from each side and which are shorter near one end and longer near the other and progressively longer from the shorter end so as to offer obstruction to the spermatazoa itself thereby tending to prevent some of the spermatazoa from reaching the ovum. The present device not only serves the usual function of an IUD to prevent pregnancy in some instances from its mere presence within the uterus but in addition offers the dual advantage of preventing some of the spermatazoa from reaching a point of conception. Perhaps a principal advantage of the present IUD resides in solving the problem of dislodgementor displacement which is common to other IUD s.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective view of the form of the present invention prior to installation.
FIG. 2 is a top plan view of the IUD shown in FIG. 1 with dimensions to illustrate typical size.
FIG. 3 is a diagrammatic view of a section through the uterus showing the present device of FIG. 1 installed therein and with the excess suture thread removed after installation.
DESCRIPTION OF THE PREFERRED EMBODIMENT The device is designated generally by reference numeral l0 and comprises an elongated member 12 which may be made from stainless steel, plastic, plastic coated metal wire or any other suitable material which has the characteristic of being bendable or deformable so that it can be shaped prior to installation and will retain its shape. If a plastic material is used it would have as a characteristic not returning to original shape and therefore in the terminology of the plastic plate having little memory.
Positioned on the elongated member 12 at different places in spaced relationship therealong is a plurality of limbs, leaves or baffles 14, 16, 18 and 20 which are progressively longer as you go from the bottom leaf 14 to the top leaf 20 and which are substantially in alignment so that the edges on the opposite sides such'as the edge 22 on leaf 20 or the edge 24 on leaf 14 are in the same plane. The leaves or walls 14, etc. are preferably made from material such as heavy plastic film which is soft and easily bent so as to be comfortable and to conform to the space within the uterus designated generally by reference numeral 30 in FIG. 3.
Elongated member 12 has initially a long suture thread 32 attached thereto to which is attached a suture needle 34 to be used with a separate surgical button 36 having four suture openings 38 therein. The IUD 10 is installed to its position shown in FIG. 3 in the following manner:
1. After appropriate dilating and sounding of the uterus the IUD 10 is inserted and the suture thread 32 would extend from the uterus opening 38.
2. Using a needle holder surgical instrument (not shown) the needle 34 is manipulated to be passed through the mouth 40 of the cervix.
3. The small surgical button 36 of soft inert material, such as polyethylene plastic, is advanced on the thread from the needle 34 to secure it against the side of the cervix and a special lock loop is placed to permit the button 36 to advance but-not to recede.
4. The remaining thread of the suture thread 32 is cut and removed and the device will remain in place indefinitely even for many years.
The following advantages of the device 10 are noted:
1. Preparation for coitus would be unnecessary, since the device is always present without further preparation.
2. The conventional IUD although not requiring preparation for coitus has the following undesirable effects which are not present in any noticeable amount in the present device.
a. The spontaneous expulsion rate varies from 8 percent to 15 percent whereas the expulsion rate for the proposed device is minimal and perhaps even zero if properly installed and constructed.
b. Theconventional intra-uterine device occasionally has been known to perforate the uterine wall and mingle with the intestines and although this is a rare occurrence and a dangerous complication it should be virtually eliminated with the present de vice.
c. Annoying, irregular, and unpredictable bleeding often follows the insertion of the conventional intra-uterine device and this should be diminished and reduced to a minimal amount with the present device.
d. It is believed that the present device will perform the dual effect previously described which includes the blockage of the spermatazoa.
It is recognized that the device 10 may take a little more time and perhaps a little more skill to place than with other IUDs. There could be more impediment to the egress of menstrual flow but it is believed to be minimal.
While l have shown and described a particular IUD and a method for installing same this is by way of illustration only and does not constitute the only form of the invention since various alterations, changes, deviations, eliminations, additions, subtractions, integrations and oer deviations could be made in the embodiment and method shown and described without departing from the scope of my invention as defined by interpretation of the appended claims.
What is claimed:
1. In a contraception device to be installed inside the uterus:
a. a flexible elongated member of a size and shape to fit inside the uterus and which elongated member is bendable into a pre-selected shape prior to installation in the uterus,
b. a plurality of projecting members at differeint locations on said elongated member for contacting the inside of said uterus at different locations,
c. and a flexible, filament-like member such as a said elongated members are wide, flat leaves progressively longer as measured from the elongated member outwardly from one end of the elongated member in spaced relation to the other end.
5. The device claimed in claim 4, wherein:
said leaves are substantially straight, planar members constructed from heavy film or the like and project from opposite sides of said elongated member in spaced relation from one end to the other.

Claims (5)

1. In a contraception device to be installed inside the uterus: a. a flexible elongated member of a size and shape to fit inside the uterus and which elongated member is bendable into a preselected shape prior to installation in the uterus, b. a plurality of projecting members at differeint locations on said elongated member for contacting the inside of said uterus at different locations, c. and a flexible, filament-like member such as a short suture, attached at one end to said elongated member and the other end being for attachment to the cervix by fastening through the tissue thereof including suturing thereto.
2. The device of claim 1 wherein: d. said projecting members on said elongated member each being substantially flexible and flat.
3. The device claimed in claim 1, wherein: there is a small button attached to said flexible member.
4. The device claimed in claim 2, wherein: said elongated members are wide, flat leaves progressively longer as measured from the elongated member outwardly from one end of the elongated member in spaced relation to the other end.
5. The device claimed in claim 4, wherein: said leaves are substantially straight, planar members constructed from heavy film or the like and project from opposite sides of said elongated member in spaced relation from one end to the other.
US00088559A 1970-11-12 1970-11-12 Dual contraceptive device Expired - Lifetime US3840005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US00088559A US3840005A (en) 1970-11-12 1970-11-12 Dual contraceptive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00088559A US3840005A (en) 1970-11-12 1970-11-12 Dual contraceptive device

Publications (1)

Publication Number Publication Date
US3840005A true US3840005A (en) 1974-10-08

Family

ID=22212072

Family Applications (1)

Application Number Title Priority Date Filing Date
US00088559A Expired - Lifetime US3840005A (en) 1970-11-12 1970-11-12 Dual contraceptive device

Country Status (1)

Country Link
US (1) US3840005A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993058A (en) * 1974-08-21 1976-11-23 Alza Corporation Intrauterine device with seeker for finding the cervical os and housing member for fitting device in an inserter
EP0160633A1 (en) * 1984-03-29 1985-11-06 Dirk Wildemeersch Apparatus for attaching an intra-uterine contraceptive device to the uterus in the immediate post partum
US4579110A (en) * 1982-03-15 1986-04-01 Jacques Hamou Tubular pessary as a contraceptive means
DE3518402A1 (en) * 1985-05-22 1986-11-27 Wolfgang Dr.med. 8000 München Würfel Intrauterine device
US5273054A (en) * 1991-09-19 1993-12-28 Walker John W Permanent diaphragm
US6588429B1 (en) * 1999-04-16 2003-07-08 Dirk Wildemeersch Method for retaining and actuating an inter-uterine device inserter and inserter enabling said method to be carried out
US20160287235A1 (en) * 2015-03-31 2016-10-06 Mar-Med Co. Abscess drainage
US20190336324A1 (en) * 2018-05-03 2019-11-07 Kukhee Choo Vaginal barrier device apparatus and method
US20220054170A1 (en) * 2020-08-24 2022-02-24 Leonard Cedars Cervical cerclage with surgical buttons

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US897050A (en) * 1907-07-16 1908-08-25 Gotthold Beck Uterine supporter.
US1896071A (en) * 1931-04-24 1933-02-07 George A Clark Pessary
US2564177A (en) * 1949-10-07 1951-08-14 Larre Lab Inc Pessary
US3308470A (en) * 1961-01-27 1967-03-07 Granger Associates Tapered ladder log periodic antenna
US3454004A (en) * 1967-08-18 1969-07-08 Holland Rantos Co Inc Intrauterine contraceptive device
US3467089A (en) * 1967-02-14 1969-09-16 Hollister Inc Intrauterine contraceptive device (iud)
US3513848A (en) * 1967-12-11 1970-05-26 Ultrasonic Systems Ultrasonic suturing
US3598115A (en) * 1969-04-08 1971-08-10 Herbert W Horne Jr Intra-uterine contraceptive device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US897050A (en) * 1907-07-16 1908-08-25 Gotthold Beck Uterine supporter.
US1896071A (en) * 1931-04-24 1933-02-07 George A Clark Pessary
US2564177A (en) * 1949-10-07 1951-08-14 Larre Lab Inc Pessary
US3308470A (en) * 1961-01-27 1967-03-07 Granger Associates Tapered ladder log periodic antenna
US3467089A (en) * 1967-02-14 1969-09-16 Hollister Inc Intrauterine contraceptive device (iud)
US3454004A (en) * 1967-08-18 1969-07-08 Holland Rantos Co Inc Intrauterine contraceptive device
US3513848A (en) * 1967-12-11 1970-05-26 Ultrasonic Systems Ultrasonic suturing
US3598115A (en) * 1969-04-08 1971-08-10 Herbert W Horne Jr Intra-uterine contraceptive device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993058A (en) * 1974-08-21 1976-11-23 Alza Corporation Intrauterine device with seeker for finding the cervical os and housing member for fitting device in an inserter
US4579110A (en) * 1982-03-15 1986-04-01 Jacques Hamou Tubular pessary as a contraceptive means
US4595000A (en) * 1982-03-15 1986-06-17 Jacques Hamou Tubular pessary as a contraceptive means
EP0160633A1 (en) * 1984-03-29 1985-11-06 Dirk Wildemeersch Apparatus for attaching an intra-uterine contraceptive device to the uterus in the immediate post partum
US4721105A (en) * 1984-03-29 1988-01-26 Dirk Wildemeersch Device for fixing an intra-uterine contraceptive device to the uterine wall
DE3518402A1 (en) * 1985-05-22 1986-11-27 Wolfgang Dr.med. 8000 München Würfel Intrauterine device
US5273054A (en) * 1991-09-19 1993-12-28 Walker John W Permanent diaphragm
US6588429B1 (en) * 1999-04-16 2003-07-08 Dirk Wildemeersch Method for retaining and actuating an inter-uterine device inserter and inserter enabling said method to be carried out
US20160287235A1 (en) * 2015-03-31 2016-10-06 Mar-Med Co. Abscess drainage
US10918841B2 (en) * 2015-03-31 2021-02-16 Mar-Med Co. Abscess drainage
US20190336324A1 (en) * 2018-05-03 2019-11-07 Kukhee Choo Vaginal barrier device apparatus and method
US11517472B2 (en) * 2018-05-03 2022-12-06 Kukhee Choo Vaginal barrier device apparatus and method
US20220054170A1 (en) * 2020-08-24 2022-02-24 Leonard Cedars Cervical cerclage with surgical buttons

Similar Documents

Publication Publication Date Title
US3680542A (en) Device for occlusion of an oviduct
US3709215A (en) Anterior vaginal retractor for vaginal surgery
US3973560A (en) Intrauterine device of C or omega form
US4111196A (en) Intrauterine contraceptive device of c or omega form with tubular inserter and method of placement
US4094313A (en) Intra-uterine device and tool for insertion of same
US4682592A (en) Method and device for achieving reversible male sterilization
US3598115A (en) Intra-uterine contraceptive device
US1896071A (en) Pessary
US3840005A (en) Dual contraceptive device
US3683906A (en) Shielded intrauterine device
JPS60500896A (en) tubular petusari
US3993058A (en) Intrauterine device with seeker for finding the cervical os and housing member for fitting device in an inserter
US2580133A (en) Diaphragm type pessary
JP2019536569A (en) Artificial insemination device and artificial insemination method
BR112016008594B1 (en) INTRAUTERINE CONTRACEPTIVE SYSTEM
US4232675A (en) Male contraceptive arrangement
US3306286A (en) Intrauterine device
GB1080577A (en) Intra-uterine contraceptive appliance
US4117839A (en) Intrauterine device
NO176262C (en) Intrauterine device
US4018220A (en) Method of insertion for intrauterine device of C or omega form with tubular inserter
US4655204A (en) Intrauterine contraceptive device for animals such as female dogs
US4054131A (en) Intrauterine contraceptive device
US1982001A (en) Pessary
US4690136A (en) Assembly of intra-uterine contraceptive device and insertor