WO1999058071A1 - Hand-held fetal vacuum extractor having an integrated pump and handle - Google Patents
Hand-held fetal vacuum extractor having an integrated pump and handle Download PDFInfo
- Publication number
- WO1999058071A1 WO1999058071A1 PCT/US1999/010084 US9910084W WO9958071A1 WO 1999058071 A1 WO1999058071 A1 WO 1999058071A1 US 9910084 W US9910084 W US 9910084W WO 9958071 A1 WO9958071 A1 WO 9958071A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vacuum
- cup
- chamber
- handle
- fetal
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B17/44—Obstetrical forceps
- A61B17/442—Obstetrical forceps without pivotal connections, e.g. using vacuum
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/30—Surgical pincettes without pivotal connections
- A61B2017/306—Surgical pincettes without pivotal connections holding by means of suction
- A61B2017/308—Surgical pincettes without pivotal connections holding by means of suction with suction cups
Definitions
- the fetus In Cesarean section deliveries, the fetus is delivered through an incision made in the uterus and a corresponding incision made in the abdomen. An upward pulling force is required in order to pull the fetus through the incisions and out of the mother. Often the force is provided by the doctor's hands directly pulling the fetus through the abdominal incision.
- a fetal vacuum extractor in which a single operator, such as a doctor, can conveniently and directly control the vacuum within the vacuum cup at the same time as pulling or applying force to the vacuum cup. Furthermore, a fetal vacuum extractor having a relatively low sealed off fluid volume is desired because the vacuum can be created faster with fewer pumps and with a smaller, more compact pump.
- Fig. 5B is an isometric view of the fetal vacuum extractor of Fig. 1 in its assembled, compressed position.
- Fig. 9 shows the vacuum cup of Fig. 8 during operation when a vacuum is applied within the cup chamber.
- FIG. 2B shows a lower flap recess 222b provided in a lower surface 238 of piston 208 for receiving a one-way exhaust flap valve 8b (Fig. 1) composed of, for example, silicone.
- Main grip 202 is hollow having an inner surface 226 that defines a grip chamber 228.
- the grip chamber 228 is substantially sealed from atmosphere during operation as described in detail below.
- Central support 214 is hollow having an internal vacuum source channel 230 connecting grip chamber 228 to a hole 232 at the top chamber surface 234 of piston 208.
- Cup connector 220 is also hollow having an internal channel 236 having a top end coupled to grip chamber 228.
- Fluid may be vacuumed from internal vacuum source channel 230 into vacuum chamber
- vacuum pump 120 includes compression springs 12a and 12b (composed of, for example, stainless steel) which are fitted over respective spring guide columns 216a and 216b. Vacuum and exhaust flap valves 8a and 8b are fitted into the respective upper and lower recesses 222a and 222b. Vacuum and exhaust retaining rings 6a and 6b (composed of, for example, nylon or polycarbonate) are fitted into respective flap recesses 222a and 222b over respective flap valves 8a and 8b.
- a vacuum o-ring 9 (composed of, for example, silicone) is positioned along an outer periphery surface of piston 208 within groove 252 (Fig. 2A).
- the fingers of the operating hand are placed around main grip 202 while placing the palm of the operating hand is pressed against the activation surface 302 of the palm chamber 2.
- the operator squeezes the fingers towards the palm, thereby overcoming the bias of compression springs 12a and 12b towards the uncompressed position.
- palm chamber 2 is pressed towards handle 1.
- Vacuum cup 150 also includes a flexible cup portion 410 having an inner wall 412 to define a cup chamber 414. Cup chamber 414 is fluidly coupled to cup channel 406 at an apex 418. Cup portion 410 has a lip 416 that contacts the work piece (e.g., fetal head H).
- work piece e.g., fetal head H
- the primary operator can determine the level of vacuum by monitoring vacuum indicator 140.
- the above describes a fetal vacuum extractor 100 having a 50 to 75 percent reduction in the sealed off fluid volume compared to the prior art.
- the "sealed off fluid volume” is defined as "the volume of the fluid to which the vacuum is applied in the extractor.”
- This reduction is due, in part, to the elimination of flexible tubing that is required in the prior art to coupled the remote vacuum pump to the extractor handle.
- the reduction is also due, in part, to filter 15 occupying volume within cup chamber 414.
- a single operator can both provide the vacuum and pull on the handle 1 10 using a single hand. This represents substantial improvements in the art of fetal vacuum extractors.
- valves 8a and 8b are described as being flap valves, valves 8a and 8b may be other types of one-way valves such as a duck bill valve, or a ball valve that has a ball sliding within a seating.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69935324T DE69935324D1 (en) | 1998-05-08 | 1999-05-06 | MANUAL OBSTETRIC VACUUM EXTRACTOR WITH INTEGRATED PUMP AND HANDLE |
CA002330582A CA2330582C (en) | 1998-05-08 | 1999-05-06 | Hand-held fetal vacuum extractor having an integrated pump and handle |
NZ507884A NZ507884A (en) | 1998-05-08 | 1999-05-06 | Hand-held fetal vacuum extractor having an integrated pump and handle such that a single human hand can grasp both the grip surface and the activation surface simultaneously |
AU39767/99A AU762627B2 (en) | 1998-05-08 | 1999-05-06 | Hand-held fetal vacuum extractor having an integrated pump and handle |
EP99922866A EP1079748B1 (en) | 1998-05-08 | 1999-05-06 | Hand-held fetal vacuum extractor having an integrated pump and handle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/075,448 US6074399A (en) | 1998-05-08 | 1998-05-08 | Hand-held fetal vacuum extractor having an integrated pump and handle |
US09/075,448 | 1998-05-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999058071A1 true WO1999058071A1 (en) | 1999-11-18 |
Family
ID=22125829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/010084 WO1999058071A1 (en) | 1998-05-08 | 1999-05-06 | Hand-held fetal vacuum extractor having an integrated pump and handle |
Country Status (9)
Country | Link |
---|---|
US (1) | US6074399A (en) |
EP (1) | EP1079748B1 (en) |
AT (1) | ATE355024T1 (en) |
AU (1) | AU762627B2 (en) |
CA (1) | CA2330582C (en) |
DE (1) | DE69935324D1 (en) |
NZ (1) | NZ507884A (en) |
PT (1) | PT1079748E (en) |
WO (1) | WO1999058071A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001003590A1 (en) * | 1999-07-09 | 2001-01-18 | Prism Enterprises, Inc. | Obstetrical vacuum extractor cup |
WO2006008532A1 (en) | 2004-07-20 | 2006-01-26 | Monty Medical Limited | Obstetric vacuum extractor |
WO2012042266A1 (en) | 2010-09-30 | 2012-04-05 | Monty Medical Limited | Obstetric vacuum extractor |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6641575B1 (en) * | 1999-01-26 | 2003-11-04 | Neal M. Lonky | Surgical vacuum instrument for retracting, extracting, and manipulating tissue |
US20050203334A1 (en) * | 1999-01-26 | 2005-09-15 | Lonky Neal M. | Vacuum instrument for laparotomy procedures |
US8409214B2 (en) | 2009-01-22 | 2013-04-02 | Meditech Development Incorporated | Portable regulated vacuum pump for medical procedures |
US8915894B1 (en) | 2000-01-24 | 2014-12-23 | Meditech Development Incorporated | Vacuum cup for delivery of agents during vacuum treatment |
US6620171B2 (en) * | 2000-11-30 | 2003-09-16 | Victor L. Vines | Vacuum extraction monitoring |
US6901345B1 (en) * | 2000-11-30 | 2005-05-31 | Victor L. Vines | Vacuum extraction monitor for electric pump |
US6872212B2 (en) * | 2000-11-30 | 2005-03-29 | Victor L. Vines | Vacuum extraction monitor with attachment for hand pump |
WO2002088546A1 (en) | 2001-04-27 | 2002-11-07 | Prism Enterprises, Lp | Obstetrical vacuum extractor cup and pump |
US6468284B1 (en) * | 2001-05-04 | 2002-10-22 | Clinical Innovation Associates, Inc. | Method and apparatus for vaccum assisted fetal extraction |
US20040002630A1 (en) * | 2002-06-28 | 2004-01-01 | Wu Steven Zung-Hong | Suction device for surgical applications |
US20050015098A1 (en) * | 2003-07-14 | 2005-01-20 | Vines Victor L. | Vacuum extraction business method |
DK176329B1 (en) * | 2004-09-09 | 2007-08-13 | Lina Medical Aps | Obsthetic vacuum cup |
US8568391B2 (en) | 2007-04-20 | 2013-10-29 | Doheny Eye Institute | Sterile surgical tray |
US20100174415A1 (en) | 2007-04-20 | 2010-07-08 | Mark Humayun | Sterile surgical tray |
US8177776B2 (en) | 2007-04-20 | 2012-05-15 | Doheny Eye Institute | Independent surgical center |
WO2008131350A1 (en) * | 2007-04-20 | 2008-10-30 | Doheny Eye Institute | Surgical pack and tray |
WO2008131362A2 (en) * | 2007-04-20 | 2008-10-30 | Doheny Eye Institute | Personal surgical center |
US8323271B2 (en) * | 2007-04-20 | 2012-12-04 | Doheny Eye Institute | Sterile surgical tray |
EP2209429A2 (en) * | 2007-11-08 | 2010-07-28 | Association For Public Health Services | Vacuum delivery extractor |
US8361083B2 (en) * | 2008-02-13 | 2013-01-29 | Michael G. Ross | Obstetrical vacuum extractor with over-traction release |
WO2012037654A1 (en) * | 2010-09-20 | 2012-03-29 | Britamed Incorporated | Vacuum anchoring catheter |
RU2470583C2 (en) * | 2011-03-24 | 2012-12-27 | Василий Васильевич Власюк | Method of determining localisation of leading point of head by changes of skull in dead fetuses and newborns |
US20130289577A1 (en) * | 2011-12-23 | 2013-10-31 | Leah BERHANE | Scapuloblade Shoulder Dystocia Device |
US9186444B2 (en) | 2012-05-07 | 2015-11-17 | Meditech Development Incorporated | Portable regulated pressure devices for medical procedures |
JP2016538077A (en) | 2013-11-28 | 2016-12-08 | アルコン ファーマシューティカルズ リミティド | Ophthalmic surgery system, method and apparatus |
US9962226B2 (en) | 2013-11-28 | 2018-05-08 | Alcon Pharmaceuticals Ltd. | Ophthalmic surgical systems, methods, and devices |
EA201790471A1 (en) | 2014-08-27 | 2017-06-30 | Бектон Дикинсон Холдингз Пте Лтд. | DEVICE FOR EXTRACTION AT LESS THAN ONE ELEMENT OF CAVITY AND DEVICE LIMITATION OF PRESSURE |
WO2017054059A1 (en) * | 2015-10-01 | 2017-04-06 | Teoh Pek Joo | Obstetrical vacuum apparatus |
WO2017201545A1 (en) | 2016-05-20 | 2017-11-23 | Lapovations, LLC | Device and methods for lifting patient tissue during laparoscopic surgery |
AU201716244S (en) * | 2017-10-13 | 2017-11-23 | JCT Solutions Pty Ltd | Obstetrical vacuum apparatus |
AU201716242S (en) * | 2017-10-13 | 2017-11-23 | JCT Solutions Pty Ltd | Obstetrical vacuum apparatus |
AU201716243S (en) * | 2017-10-13 | 2017-11-23 | JCT Solutions Pty Ltd | Obstetrical vacuum apparatus |
US11344287B2 (en) * | 2017-12-11 | 2022-05-31 | Lapovations, LLC | Laparoscopic surgical instrument |
WO2020011616A1 (en) * | 2018-07-10 | 2020-01-16 | Bayer Oy | A vacuum-based tenaculum |
US11504260B2 (en) | 2018-10-04 | 2022-11-22 | Lipocosm, Llc | Rigidifying brace |
US11540894B2 (en) | 2018-10-04 | 2023-01-03 | Lipocosm, Llc | Rigiditying brace |
US11793245B2 (en) * | 2020-12-07 | 2023-10-24 | Lipocosm, Llc | Brassiere with slidable rims |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US5395379A (en) * | 1993-07-22 | 1995-03-07 | Deutchman; Mark E. | Extractor for childbirth and aspirator/injector device |
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US2194989A (en) * | 1937-07-07 | 1940-03-26 | Torpin Richard | Obstetrical device |
FR1087591A (en) * | 1953-03-23 | 1955-02-25 | Soderberg & Co Aktiebolag R | Childbirth release device |
US2917050A (en) * | 1958-11-28 | 1959-12-15 | Arthur D Kenyon | Means and method for assisting the birth of a child |
DE1123432B (en) * | 1960-09-14 | 1962-02-08 | Dr Med Kurt Sokol | Device for vacuum extraction during childbirth |
US3202152A (en) * | 1963-03-08 | 1965-08-24 | John F Wood | Vacuum extractor for childbirth |
US3207160A (en) * | 1963-11-05 | 1965-09-21 | Ockert S Heyns | Apparatus for facilitating the processes of parturition |
US3612722A (en) * | 1969-03-03 | 1971-10-12 | Theodore C Neward | Hand vacuum pump |
US3794044A (en) * | 1971-10-20 | 1974-02-26 | Ethyl Corp | Delivery forceps |
US3765408A (en) * | 1972-03-16 | 1973-10-16 | Kawai Tosando Kk | Soft obstetric vacuum cup for assisting childbirth |
US3782385A (en) * | 1972-10-24 | 1974-01-01 | P Loyd | Breast pump |
DE3138589A1 (en) * | 1981-09-29 | 1983-04-07 | Atmos Fritzsching & Co Gmbh, Zweigniederlassung Lenzkirch Im Schwarzwald, 7825 Lenzkirch | Device for vacuum extraction |
WO1989006112A1 (en) * | 1987-12-29 | 1989-07-13 | Menox Ab | Obstetric suction device |
US5019086A (en) * | 1989-09-12 | 1991-05-28 | Neward Theodore C | Manipulable vacuum extractor for childbirth and method of using the same |
US5071403A (en) * | 1989-11-14 | 1991-12-10 | Isg/Ag | Method and apparatus for protecting the pump of a breast pump from fouling by milk |
US5163944A (en) * | 1991-08-09 | 1992-11-17 | Neward Theodore C | Obstetrical vacuum extractor |
US5224947A (en) * | 1991-10-21 | 1993-07-06 | Cooper Richard N | Soft, readily expandable vacuum bell assembly |
US5277557A (en) * | 1993-01-11 | 1994-01-11 | Cooper Richard N | Hand-held and hand-operated vacuum pump |
-
1998
- 1998-05-08 US US09/075,448 patent/US6074399A/en not_active Expired - Lifetime
-
1999
- 1999-05-06 AT AT99922866T patent/ATE355024T1/en not_active IP Right Cessation
- 1999-05-06 PT PT99922866T patent/PT1079748E/en unknown
- 1999-05-06 CA CA002330582A patent/CA2330582C/en not_active Expired - Fee Related
- 1999-05-06 WO PCT/US1999/010084 patent/WO1999058071A1/en active IP Right Grant
- 1999-05-06 DE DE69935324T patent/DE69935324D1/en not_active Expired - Lifetime
- 1999-05-06 NZ NZ507884A patent/NZ507884A/en not_active IP Right Cessation
- 1999-05-06 AU AU39767/99A patent/AU762627B2/en not_active Expired
- 1999-05-06 EP EP99922866A patent/EP1079748B1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5395379A (en) * | 1993-07-22 | 1995-03-07 | Deutchman; Mark E. | Extractor for childbirth and aspirator/injector device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001003590A1 (en) * | 1999-07-09 | 2001-01-18 | Prism Enterprises, Inc. | Obstetrical vacuum extractor cup |
WO2006008532A1 (en) | 2004-07-20 | 2006-01-26 | Monty Medical Limited | Obstetric vacuum extractor |
WO2012042266A1 (en) | 2010-09-30 | 2012-04-05 | Monty Medical Limited | Obstetric vacuum extractor |
Also Published As
Publication number | Publication date |
---|---|
EP1079748A1 (en) | 2001-03-07 |
DE69935324D1 (en) | 2007-04-12 |
EP1079748B1 (en) | 2007-02-28 |
NZ507884A (en) | 2004-11-26 |
PT1079748E (en) | 2007-05-31 |
CA2330582C (en) | 2008-02-19 |
AU3976799A (en) | 1999-11-29 |
EP1079748A4 (en) | 2004-08-04 |
US6074399A (en) | 2000-06-13 |
CA2330582A1 (en) | 1999-11-18 |
ATE355024T1 (en) | 2006-03-15 |
AU762627B2 (en) | 2003-07-03 |
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