Subaxillary traction device to address shoulder dystocia during childbirth

Abstract

A subaxillary traction device having an elongated body portion with a first end and a second end, at least one receptacle member disposed on the first end defining a cavity to receive a fingertip, a handle opening disposed adjacent or near the first end and a handle opening disposed adjacent or near the second end, the handle openings being of sufficient size to receive at least one finger there through, whereby the body portion is positionable under the posterior axilla of a fetus experiencing shoulder dystocia such that traction may be applied allowing delivery of the posterior arm affecting the safe delivery of the baby.

Claims

1. A subaxillary traction device assisting a surgeon in addressing the problem of shoulder dystocia during childbirth by providing a device to flex a shoulder of a fetus in a womb, the subaxillary traction device consisting of: a single, elongated body portion having two ends, said body portion composed of a flexible, pliable polymer material suitable for use in a medical or surgical procedure, wherein said body portion has a form chosen from the group of forms consisting of a strip, a strap, a cylindrical member and a tubular member; a first receptacle member disposed on one of said ends, said first receptacle member being closed at said one of said ends of said body portion and open in the direction away from said one of said ends of said body portion, said first receptacle having a cavity sized and configured to receive and retain a fingertip; said body portion having an opening in each of said ends, each of said openings extending through said body portion and sized to receive one or more fingers therethrough, wherein one of said openings is adjacent said first receptacle member.

2. The device of claim 1, further consisting of a second receptacle member disposed on the other of said ends, said second receptacle member being closed at said other of said ends of said body portion and open in the direction away from said other of said ends of said body portion, said second receptacle having a cavity sized and configured to receive and retain a fingertip.

3. The device of claim 1, wherein said openings are configured as slits, slots or apertures.

4. The device of claim 1, wherein said body portion is composed of a silicone material.

5. The device of claim 1, wherein said body portion is approximately 60-80 cm in length and approximately 5-10 mm in width or diameter.

6. The device of claim 1, wherein said first receptacle member is approximately 2-4 cm in length.

7. The device of claim 1, wherein said body portion is approximately 60-80 cm in length and approximately 5-10 mm in width or diameter, wherein said first receptacle member is approximately 2-4 cm in length, and wherein said openings are approximately 6-10 cm in length.

8. A method of treating should dystocia during childbirth comprising the steps of: providing a subaxillary traction device consisting of a single, elongated body portion having two ends, said body portion composed of a flexible, pliable polymer material suitable for use in a medical or surgical procedure, wherein said body portion has a form chosen from the group of forms consisting of a strip, a strap, a cylindrical member and a tubular member; a first receptacle member disposed on one of said ends, said first receptacle member being closed at said one of said ends of said body portion and open in the direction away from said one of said ends of said body portion, said first receptacle having a cavity sized and configured to receive and retain a fingertip; said body portion having an opening in each of said ends, each of said openings extending through said body portion and sized to receive one or more fingers therethrough, wherein one of said openings is adjacent said first receptacle member; inserting a fingertip into said first receptacle member and introducing said one of said ends of said body portion into a vagina and around a posterior axilla of a fetus; grasping said one of said ends of said body portion, removing said fingertip from said first receptacle member and retrieving said one of said ends from said vagina such that said body portion remains positioned around the posterior axilla; inserting fingers through said openings and applying traction to said body portion, thereby flexing and shrugging the shoulder of the fetus to free the fetus; and pulling the posterior arm from the vagina whereby the fetus may be fully removed from the vagina.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a view of a strap-like embodiment of the subaxillary traction device, the handle openings shown as slits.

(2) FIG. 2 is a view of the device of FIG. 1 showing the handle openings in an expanded position.

(3) FIG. 3 is a partial view of a cylindrical embodiment of the device mounted to the index finger of the obstetrician in position for trans-vaginal insertion.

(4) FIG. 4 is a partial view of an embodiment of the device showing the handle opening as a slot.

DETAILED DESCRIPTION OF THE INVENTION

(5) With reference to the drawings, the subaxillary traction device will now be described in detail with regard to multiple embodiments. The various embodiments as illustrated and described herein are not meant to be limiting, such that it is the intent that the scope of the invention be defined by the language of the claims.

(6) As shown in the figures, the subaxillary traction device 10 comprises in general an elongated body portion 11 having a first end 12, a second end 13, at least one receptacle member 14 disposed on the first end 12, a handle opening 16 disposed adjacent or near the first end 12 and a handle opening 16 disposed adjacent or near the second end 13. Preferably a second receptacle member 14 is disposed on the second end 13. Although the traction device 10 may be composed of distinct materials bonded or otherwise connected, it is most preferable that the traction device 10 be composed of a single material that is flexible, pliable, non-rigid and supple. Most preferably the single material is a polymer material suitable for use in a medical/surgical environment, such as for example a silicone polymer. It is most preferable that the material of composition have a low friction surface and/or be suitable to receive and retain a lubricating coating.

(7) The elongated body portion 11 of the traction device 10 is presented in the form of a thin strip, a thin strap, a small diameter cylinder or a small diameter tubing, with the material of composition and the cross-sectional dimensions being such that the body portion 11 is easily bent, flexed, looped and/or turned back upon itself, such that a first end 12 of the body portion 11 is easily introduced trans-vaginally during the delivery process, passed beneath the posterior axilla of the fetus, and then pulled out trans-vaginally, the length of the body portion 11 being such that both the first end 12 and the second end 13 may be gripped by the obstetrician externally to the vagina. As a representative and non-limiting example, the elongated body portion 11 may be formed as a length of cylindrical or tubular polymer material approximately 60-80 cm in length and possessing a width or diameter of approximately 5-10 mm.

(8) The first end 12 of the body portion 11, being designated as the end to be introduced trans-vaginally, is provided with a receptacle member 14 in the form of a hood, cap, cup, sheath of the like that is sized and structured so as to present a cavity 15 able to temporarily receive the tip or end of the obstetrician's finger, as shown in FIG. 3. The receptacle member 14 is closed at the first end 12 and open in the direction away from the first end 12 of the traction device 10 and toward the bulk of the body portion 11 or second end 13, and may for example be approximately 2-4 cm in length. The receptacle member 14 may be structured or composed so as to be somewhat elastic in order to more securely grip the fingertip, such as for example similar in functionality to a finger cot formed of an elastic polymer. With this design, the first end 12 is easily and securely guided into the vagina and beneath the posterior axilla of the fetus. A second receptacle member 14 may be provided on the second end 13 of the body portion 11, such that either first end 12 or second end 13 may be utilized to position the traction device 10. The second receptacle member 14 defines a cavity 15 closed at the second end 13 and open in the direction of the first end 12.

(9) Most preferably, a pair of handle openings 16 are disposed on the body portion 11 of the traction device 10. The handle openings 16 are fenestrations in the form of slits, slots, apertures or other open shapes that are sized such that at least one and preferably two or more fingers may be inserted there through. As a representative and non-limiting example, the handle openings 16 may be approximately 6-10 cm in length. The distance between the handle openings 16 is sufficient such that both handle openings 16 will reside externally to the vagina when the body portion has been positioned beneath the posterior axilla of the fetus and traction is to be applied. Preferably, one handle opening 16 is disposed adjacent or near the first end 12 and the other handle opening 16 is disposed adjacent or near the second end 13. The configuration of the handle opening 16 is preferably such that the size of opening remains closed or relatively small when the body portion 11 is non-stressed or under stress, such that the handle openings 16 will not impede or interfere with insertion and retrieval of the first end 12 of the body portion 11 as it is positioned around the posterior axilla.

(10) To retrieve the first end 12 of the body portion 11 after it has been positioned around the posterior axilla of the fetus, the obstetrician may grip the first end 12 with fingers or forceps, may insert a hooked finger into the now empty receptacle member 14 of the first end 12, or may insert one or more fingers into the handle opening 16 adjacent the first end 12. Once the first end 12 is fully retrieved, both handle openings 16 are now positioned externally to the vagina and are accessible to the obstetrician.

(11) Thus, in the event that shoulder dystocia occurs during a birth, the obstetrician obtains a traction device 10 and preferably lubricates the traction device 10 if it is not pre-lubricated. The obstetrician inserts a fingertip, usually of the index finger, into the cavity 15 of the receptacle member 14 and directs the first end 12 into the vagina. The first end 12 is then curled around the posterior axilla of the fetus so as to extend in the direction of the vaginal opening. The first end 12 is then gripped by the other hand or forceps and pulled from the vagina. The handle openings 16 are then brought together and one or more fingers are inserted such that the obstetrician may exert traction on the traction device to flex or shrug the posterior shoulder allowing the posterior arm to be delivered, relieving the trapped posterior shoulder, and thus allowing delivery of the baby.

(12) It is understood that equivalents or substitutions for elements set forth above may be obvious to those of skill in the art, and therefore the true scope and definition of the invention is to be as set forth in the following claims.