Peripheral blood vessels in neonates are often friable and difficult to access, particularly in the preterm population. Because of this, traditional central venous catheters can be difficult to place. For this reason, umbilical artery catheters (UACs) and umbilical vein catheters (UVCs) are used to provide access for various purposes, such as resuscitation, monitoring of blood, administration of fluids, blood transfusion, and parenteral nutrition in neonates whose condition is unstable.
Placement of umbilical catheters is important in the treatment of ill neonates. Under current practice, the umbilicus is normally elevated by an assistant and the umbilicus is sterilized and draped in preparation for cannulation. During cannulation, the assistant typically holds the umbilicus in an upright orientation with the neonate supine to enable the physician to perform the cannulation.
Although the above-described procedure is viable, it is disadvantageous because at least one assistant, who must be sufficiently sterilized prior to assisting, is required. More desirable would be a procedure that does not rely on the availability of such an assistant.
The disclosed apparatuses and methods can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale.
As described above, it is current practice to have a sterilized assistant manually support the umbilicus both during preparation for and performance of umbilical vessel cannulation. Such a practice is disadvantageous because at least one assistant is required. Described herein are apparatuses and methods that remove the need for such an assistant. In one embodiment, an apparatus comprises an armature that supports the umbilicus in an upright (e.g., vertical) orientation.
As indicated in
The armature 14 includes an elongated flexible arm 20 and a support head 22. The arm 20 has a first or proximal end 24 and a second or distal end 26. As shown in
In addition to being angularly adjustable, the arm 20 can be flexed to change the position and/or orientation of the support head 22. In some embodiments, the arm 20 provides mild resistance against such flexion and is configured so that the arm will automatically hold substantially any position and/or orientation in which it is placed in similar manner to a flexible table lamp. In some embodiments, the arm 20 includes fixation elements (not shown) that are used to securely fix the arm in a desired position.
As noted above, the support head 22 is attached to the distal end 26 of the arm 20. In some embodiments, the support head 22 can be rotated relative to the arm 20. In such cases, the armature 14 can include a lock collar 30 that securely locks the support head in a desired angular orientation relative to the arm 20. In some embodiments, the support head 22 comprises an elongated body 32 that supports one or more umbilicus clamp securing elements 34 and, in at least some embodiments, one or more lights 36 that face downward from the head. The securing elements 34 are designed to hold an independent umbilicus clamp (see
In some embodiments, the support head 22 is removable to facilitate the attachment of alternative support heads to the distal end 26 of the flexible arm 20. Such alternative support heads may comprise alternative configurations, dimensions, securing elements, and/or lights. In some embodiments, the umbilicus clamp securing elements 34 are separately removable and replaceable. For example, the securing elements 34 can be disposable elements that are discarded after use in supporting an umbilicus.
Provided at the bottom end 86 of the body 82 is a clip element 92 that is specifically configured to receive and secure an umbilicus clamp, such as the clamp 50 shown in
When an umbilicus is to be supported, one or more securing elements 80 can be attached to the support head 22, for example by inserting the shanks 88 of the elements into the orifices provided in the head. Once the securing elements 80 are mounted to the support head 22, an umbilicus can be supported by the apparatus 10. Assuming that an umbilicus clamp 50 has already been secured to the umbilicus, the clamp can be secured by the securing elements 80. With reference to
Although various embodiments have been described above, it is to be understood that alternative embodiments are possible. The present disclosure is intended to extend to all such embodiments.
This application is the 35 U.S.C. §371 national stage of PCT application PCT/US2010/043564, filed Jul. 28, 2010, which claims priority to and the benefit of U.S. Provisional Application No. 61/229,357, filing date Jul. 29, 2009, which is hereby incorporated by reference in its entirety.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/US2010/043564 | 7/28/2010 | WO | 00 | 1/10/2012 |
Publishing Document | Publishing Date | Country | Kind |
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WO2011/014566 | 2/3/2011 | WO | A |
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Number | Date | Country | |
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20120116174 A1 | May 2012 | US |
Number | Date | Country | |
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61229357 | Jul 2009 | US |