CA1195565A - Obstetric device - Google Patents
Obstetric deviceInfo
- Publication number
- CA1195565A CA1195565A CA000420960A CA420960A CA1195565A CA 1195565 A CA1195565 A CA 1195565A CA 000420960 A CA000420960 A CA 000420960A CA 420960 A CA420960 A CA 420960A CA 1195565 A CA1195565 A CA 1195565A
- Authority
- CA
- Canada
- Prior art keywords
- stem
- cord
- loop
- prong
- prongs
- 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
Links
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- Catching Or Destruction (AREA)
Abstract
A B S T R A C T
An obstetric device for assisting in the birth of animals especially lambs, comprising a hollow stem member one end of which is forked, one of the prongs of the fork being substantially co-axially aligned with the axis of the stem, the other prong extending at an angle to the stem, cord means threaded through the stem and arranged to form a loop between the free ends of the prongs, the loop being offset with respect to the axis of the stem, so arranged that in use the offset loop can be varied in size by manipulating the cord means externally of the stem.
An obstetric device for assisting in the birth of animals especially lambs, comprising a hollow stem member one end of which is forked, one of the prongs of the fork being substantially co-axially aligned with the axis of the stem, the other prong extending at an angle to the stem, cord means threaded through the stem and arranged to form a loop between the free ends of the prongs, the loop being offset with respect to the axis of the stem, so arranged that in use the offset loop can be varied in size by manipulating the cord means externally of the stem.
Description
s~s ~his invention relates to an improved obstetric device for use in assisting the birth of animals such as lambs, kids, calves or piglets.
The device o~ the present invention is particularly 5. envisaged for use in situations where the nascent offspring is alive with its nose and eyes showing through the mouth of the uterus of the mother animal but where the legs are reverted or facing backwards in the uterus away from the normal delivery position. In this situation, the birth 10. of the nascent animal while still alive can prove very difficult, and is generally done by an operator inserting :~ a hand through the uterus mouth to pull the nascent animalinto the correct position within the uterus. However, such procedure subjects the mother animal to considerable 15~ pain and di.scomfort due to the ~act that a human hand is generally too large to comfortably fit through the pelvis of most animals to carry out the necessary repositioning ;~ of the nascent animal.
It is the main object of the present invention to 20. provide a simple device which may be readily inserted into the uterus of the expectant mother and easily manipulated to grasp a portion of the nascent animal so as to extract same, and which will considerably enhance the chances of successfully delivering nascent offspring 25. unharmed and with minimum discom~or-t to the mother.
The device o~ the present invention is particularly 5. envisaged for use in situations where the nascent offspring is alive with its nose and eyes showing through the mouth of the uterus of the mother animal but where the legs are reverted or facing backwards in the uterus away from the normal delivery position. In this situation, the birth 10. of the nascent animal while still alive can prove very difficult, and is generally done by an operator inserting :~ a hand through the uterus mouth to pull the nascent animalinto the correct position within the uterus. However, such procedure subjects the mother animal to considerable 15~ pain and di.scomfort due to the ~act that a human hand is generally too large to comfortably fit through the pelvis of most animals to carry out the necessary repositioning ;~ of the nascent animal.
It is the main object of the present invention to 20. provide a simple device which may be readily inserted into the uterus of the expectant mother and easily manipulated to grasp a portion of the nascent animal so as to extract same, and which will considerably enhance the chances of successfully delivering nascent offspring 25. unharmed and with minimum discom~or-t to the mother.
- 2 -., ~
.
Accordlng to this inven-tion therefore, an obstetric device for assistlng in the birth of animals comprises a hollow stem having a fork at one end thereof, the said fork having a first hollow prong which forms an approximate 5. linear extension of said stem and a second hollo~ prong extending at an angle to said stem, a length of cord or wire extending into and through said stem from a point remote from said one end thereof and passing ou-t from one of said prongs and around to enter the other said prong so 10. as to form a loop between the free ends of the prongs, said loop lying essentially in a single plane and being offset with respect tothe central axis of said stem, said cord being arranged so that, in use, the offset loop can be varied in size by manipulating the cord externally of the stem.
15. Preferably, said first prong has a length exceeding the length of said second prong.
In anather preferred arrangement, there is provided a probe attachable to the free ends of the cord extending out from the stem, the probe being designed for use as an 20. instrument for applying pressure to the brisket of the nascent animal. at the locality of the uterus mouth of -the expectan-t mother to assist in inserting the forked stem into the uterus.
The present invention will now be described, by way 25. of example only, with reference to the accompanying drawings wherein:
Fig. 1 is a side elevational v:iew of an obstetric device according -to thls invention (the do-tted lines at the orked end of the stem representing different 5. positions of the offset loop), Fig. 2 is a cross-sectional view taken along the line 2 2 of Fig. 1, and Fig. 3 is an elevational view of an associated sterilizing container for housing and sterilizing the 10. device of Fig. 1.
In this embodiment, there is shown an obstetric device 10 comprising a hollow stem 12 of semi-rigid but flexible material which in this embodiment is polypropylene, however, any other suitable plastics material can be used.
15. The stem 12 is provided with an aperture or opening 14 communicating with the interior of the stem near one end thereof. The stem 12 is formed to have a fork 16 at the other end (head end) thereof. The fork 16 comprises a first hollow prong 18 which is substantially in axial 200 alignment with and forms an approximate linear extension o~ the stem 12 and a second hollow prong 20 disposed at an angle to the hollow stem 12. In this embodiment, the first prong 1~ has a length which slightly exceeds the length of the second prong 20.
25. The hollow stem 12 is provided with a polygonally shaped base flange 22, the flange being provided with a pointed corner 23, or some other form of visual indicia so -that, in usel an operator can readily ascertain the orientation of the device 10.
5. The device 10 is further provided with a cord 2 which passes into the stem 12 through the opening or aperture 14 and extends through the interior of the stem 12 and passes out of the open end of the fork prong 16, around in a loop to enter the open end of the other fork 10. prong 18, back through the interior of the stem and finally out through the aperture 14. The cord 24 is preferably formed of plastics material which may be metal xeinforced to prevent the cord from collapsing or distorting under body heat.
15. As shown in Fig. 1, the cord 24 forms an offset loop between the free ends of the prongs 18 and 20, the size of the loop being able to be readily varied by appropriately manipulating the cord 24 in the region beyond the opening 14.
20. In this embodiment~ the free ends of the cord 24 are detachably secured within a hollow probe 26 which is also formed o~ polypropylene. The probe comprises a short length o~ tube which is provided with an elliptically shaped end flanges 28, and a polygonal end flange 29.
25. The wall of the tubular probe 26 is provided with apertures ; - 5 -through which the cord 2~ may pass :in order to attach the probe 26 to the hollow stem 12. The attachment of the probe 26 to the stem 12 is for convenience only and simply serves to minimise the likelihood of the probe 26 becoming 5. separated from the remainder of the obstetric device lO.
In use, the probe 26 i9 used by the operator to apply pressure by means of the leading elliptical flange 28, to the brisket of the nascent animal at -the uterus mouth. This allows the operator to insert the hollow stem 12 with 10. the for~ 16 leading with minimum resistance or discomfort so preventing undue stress and pain to the mother animal.
The prong 18 of the forked end 16 of the stem 12 is pushed along a leg of the nascent animal until the lower Fetlock joint or the cleft of the hoof i5 reached.
15. The operator receives a tactile sensation when this point is reached. Then the offset loop is adjusted to the size required to attach the loop to the leg of the nascent animal with which the first prong 18 is in contact. The loop is then slipped over the hoof and leg of -the nascent 20. animal, by simply rotating the stem through 180 degrees and then tightened by withdrawing the cord 24 from the stem 12. The leg attached to the loop can be returned or placed to its correct position for delivery of the nascent animal without injury.
25. Preferably, when increasing the size of the offset loop, the cord is fed through the prong 18 and ln order to facilitate this step, the cord 24 is preferably marked to show which portion of the cord is to be manipulated.
Both forelegs of the nascent animal can be treated 5- independently as described above and then both legs subsequently gathered in the loop -to further assist in cases o~ difficult birth. If difficulty is still experienced the loop can be passed over both foreleys and the head of the nascent animal. With the use of the lO. probe 26, the loop can be inserted on top of the nascent animal's wither, the loop then tightened and the nascent animal delivered unharmed.
The device of the pxesent invention can also be used to remove asphyxiated young and so save the life of the 15. mother.
The device can be easily dismantled for sterilization and by using plastics material components, high hygiene standards can be maintained. The components are con-veniently placed in a cylindrical sterilizing container 30 20. for stexilization and transport. The container body may be ~ormed of transparent durable plastics material, for example polyvinylchloride, and be provided with a screw-on lid 32. Following use, the device 10 may be placed in the container 30 with a suitable sterilizing solution for 25. storage until next required. This is a matter of considerable practical importance, since an operator's hands are likely to be su~ficiently contaminated to risk infection to the other animal. Also, the container 30 may have slotted openings 34 for locating st:raps so that it can be con-5. veniently attached to the handlebars of a motorcycle or carried on horseback~
As illustrated in Fig. 2 of the drawings, the hollowstem 12 is approximately elliptical in cross-section with the long axis of the ellipse parallel wi.th the plane 10. containing both fork prongs 18 and 20l for minimum resistance during insertion.
A brief consideration of the above described embodiment will indicate that the invention is extremely simple but nevertheless provides a very convenient tool for facilitating 15. births of nascent animals - births which would otherwise prove difficult to carry out.
.
Accordlng to this inven-tion therefore, an obstetric device for assistlng in the birth of animals comprises a hollow stem having a fork at one end thereof, the said fork having a first hollow prong which forms an approximate 5. linear extension of said stem and a second hollo~ prong extending at an angle to said stem, a length of cord or wire extending into and through said stem from a point remote from said one end thereof and passing ou-t from one of said prongs and around to enter the other said prong so 10. as to form a loop between the free ends of the prongs, said loop lying essentially in a single plane and being offset with respect tothe central axis of said stem, said cord being arranged so that, in use, the offset loop can be varied in size by manipulating the cord externally of the stem.
15. Preferably, said first prong has a length exceeding the length of said second prong.
In anather preferred arrangement, there is provided a probe attachable to the free ends of the cord extending out from the stem, the probe being designed for use as an 20. instrument for applying pressure to the brisket of the nascent animal. at the locality of the uterus mouth of -the expectan-t mother to assist in inserting the forked stem into the uterus.
The present invention will now be described, by way 25. of example only, with reference to the accompanying drawings wherein:
Fig. 1 is a side elevational v:iew of an obstetric device according -to thls invention (the do-tted lines at the orked end of the stem representing different 5. positions of the offset loop), Fig. 2 is a cross-sectional view taken along the line 2 2 of Fig. 1, and Fig. 3 is an elevational view of an associated sterilizing container for housing and sterilizing the 10. device of Fig. 1.
In this embodiment, there is shown an obstetric device 10 comprising a hollow stem 12 of semi-rigid but flexible material which in this embodiment is polypropylene, however, any other suitable plastics material can be used.
15. The stem 12 is provided with an aperture or opening 14 communicating with the interior of the stem near one end thereof. The stem 12 is formed to have a fork 16 at the other end (head end) thereof. The fork 16 comprises a first hollow prong 18 which is substantially in axial 200 alignment with and forms an approximate linear extension o~ the stem 12 and a second hollow prong 20 disposed at an angle to the hollow stem 12. In this embodiment, the first prong 1~ has a length which slightly exceeds the length of the second prong 20.
25. The hollow stem 12 is provided with a polygonally shaped base flange 22, the flange being provided with a pointed corner 23, or some other form of visual indicia so -that, in usel an operator can readily ascertain the orientation of the device 10.
5. The device 10 is further provided with a cord 2 which passes into the stem 12 through the opening or aperture 14 and extends through the interior of the stem 12 and passes out of the open end of the fork prong 16, around in a loop to enter the open end of the other fork 10. prong 18, back through the interior of the stem and finally out through the aperture 14. The cord 24 is preferably formed of plastics material which may be metal xeinforced to prevent the cord from collapsing or distorting under body heat.
15. As shown in Fig. 1, the cord 24 forms an offset loop between the free ends of the prongs 18 and 20, the size of the loop being able to be readily varied by appropriately manipulating the cord 24 in the region beyond the opening 14.
20. In this embodiment~ the free ends of the cord 24 are detachably secured within a hollow probe 26 which is also formed o~ polypropylene. The probe comprises a short length o~ tube which is provided with an elliptically shaped end flanges 28, and a polygonal end flange 29.
25. The wall of the tubular probe 26 is provided with apertures ; - 5 -through which the cord 2~ may pass :in order to attach the probe 26 to the hollow stem 12. The attachment of the probe 26 to the stem 12 is for convenience only and simply serves to minimise the likelihood of the probe 26 becoming 5. separated from the remainder of the obstetric device lO.
In use, the probe 26 i9 used by the operator to apply pressure by means of the leading elliptical flange 28, to the brisket of the nascent animal at -the uterus mouth. This allows the operator to insert the hollow stem 12 with 10. the for~ 16 leading with minimum resistance or discomfort so preventing undue stress and pain to the mother animal.
The prong 18 of the forked end 16 of the stem 12 is pushed along a leg of the nascent animal until the lower Fetlock joint or the cleft of the hoof i5 reached.
15. The operator receives a tactile sensation when this point is reached. Then the offset loop is adjusted to the size required to attach the loop to the leg of the nascent animal with which the first prong 18 is in contact. The loop is then slipped over the hoof and leg of -the nascent 20. animal, by simply rotating the stem through 180 degrees and then tightened by withdrawing the cord 24 from the stem 12. The leg attached to the loop can be returned or placed to its correct position for delivery of the nascent animal without injury.
25. Preferably, when increasing the size of the offset loop, the cord is fed through the prong 18 and ln order to facilitate this step, the cord 24 is preferably marked to show which portion of the cord is to be manipulated.
Both forelegs of the nascent animal can be treated 5- independently as described above and then both legs subsequently gathered in the loop -to further assist in cases o~ difficult birth. If difficulty is still experienced the loop can be passed over both foreleys and the head of the nascent animal. With the use of the lO. probe 26, the loop can be inserted on top of the nascent animal's wither, the loop then tightened and the nascent animal delivered unharmed.
The device of the pxesent invention can also be used to remove asphyxiated young and so save the life of the 15. mother.
The device can be easily dismantled for sterilization and by using plastics material components, high hygiene standards can be maintained. The components are con-veniently placed in a cylindrical sterilizing container 30 20. for stexilization and transport. The container body may be ~ormed of transparent durable plastics material, for example polyvinylchloride, and be provided with a screw-on lid 32. Following use, the device 10 may be placed in the container 30 with a suitable sterilizing solution for 25. storage until next required. This is a matter of considerable practical importance, since an operator's hands are likely to be su~ficiently contaminated to risk infection to the other animal. Also, the container 30 may have slotted openings 34 for locating st:raps so that it can be con-5. veniently attached to the handlebars of a motorcycle or carried on horseback~
As illustrated in Fig. 2 of the drawings, the hollowstem 12 is approximately elliptical in cross-section with the long axis of the ellipse parallel wi.th the plane 10. containing both fork prongs 18 and 20l for minimum resistance during insertion.
A brief consideration of the above described embodiment will indicate that the invention is extremely simple but nevertheless provides a very convenient tool for facilitating 15. births of nascent animals - births which would otherwise prove difficult to carry out.
Claims (6)
1. An obstetric device for assisting in the birth of animals comprising:-a hollow stem having a fork at one end thereof, said fork having a first hollow prong substantially in alignment with the central axis of said stem and a second hollow prong extending at an angle to said stem, a length of cord or wire extending into and through said stem from a point remote from said one end thereof and passing out from one of said prongs and around to enter the other said prong so as to form a loop between the free ends of the prongs, said loop lying essentially in a single plane and being offset with respect to the central axis of said stem, said cord being arranged so that, in use, the off-set loop can be varied in size by manipulating the cord externally of the stem.
2. An obstetric device according to claim 1 wherein said first prong has a length slightly greater than the length of the second prong.
3. An obstetric device according to claim 2 further comprising a probe detachably secured to said cord remote from said offset loop, said probe being adapted, in use, to apply pressure to a nascent animal to assist in the insertion of the forked stem into the uterus of the mother animal.
4. A device according to claim 1 or claim 2 wherein said stem is provided with an aperture in its wall near to its other end and said cord passes through said aperture.
5. A device according to claim 1 wherein said stem includes visual indicating means for indicating to an operator the orientation of the device when inserted in the uterus of the mother animal.
6. A device according to claim 1 wherein said stem and said fork prongs are of elliptical cross-sectional shape, with the major axis of the ellipse parallel to the plane containing said prongs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000420960A CA1195565A (en) | 1983-02-04 | 1983-02-04 | Obstetric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000420960A CA1195565A (en) | 1983-02-04 | 1983-02-04 | Obstetric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1195565A true CA1195565A (en) | 1985-10-22 |
Family
ID=4124497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000420960A Expired CA1195565A (en) | 1983-02-04 | 1983-02-04 | Obstetric device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1195565A (en) |
-
1983
- 1983-02-04 CA CA000420960A patent/CA1195565A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |