U.S. patent number 3,645,262 [Application Number 04/874,161] was granted by the patent office on 1972-02-29 for volumetric infant feeding unit.
This patent grant is currently assigned to Abbott Laboratories. Invention is credited to Robert Emmet Harrigan.
United States Patent |
3,645,262 |
Harrigan |
February 29, 1972 |
VOLUMETRIC INFANT FEEDING UNIT
Abstract
An infant feeding unit for the feeding of precise quantities of
formula to an infant and which comprises a container calibrated for
accurate measurement of liquid contents within the container and
including a nipple and a retaining cap for retaining the nipple on
the container. Included in the unit is a transfer cap engageable
with both the calibrated container and a conventional infant
feeding container, and including a projecting hub. The transfer cap
is used to facilitate transfer of formula from the conventional
container to the calibrated container, the hub being adapted for
engagement with an infant feeding catheter whereby, when attached
to the calibrated container, the unit can be used for feeding of an
infant by the gavage method when the infant cannot be fed
orally.
Inventors: |
Harrigan; Robert Emmet
(Westerville, OH) |
Assignee: |
Abbott Laboratories (North
Chicago, IL)
|
Family
ID: |
25363117 |
Appl.
No.: |
04/874,161 |
Filed: |
November 5, 1969 |
Current U.S.
Class: |
604/77; D24/197;
215/11.1; 222/566; 222/570; 604/187 |
Current CPC
Class: |
A61J
9/00 (20130101); A61J 15/00 (20130101); A61J
2200/76 (20130101) |
Current International
Class: |
A61J
9/00 (20060101); A61J 15/00 (20060101); A61j
009/00 () |
Field of
Search: |
;128/213,222,223,252,348,224 ;215/11-11.4,73
;222/460,464,566-570 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
454,058 |
|
Sep 1936 |
|
GB |
|
5,787 |
|
1906 |
|
GB |
|
Primary Examiner: Truluck; Dalton L.
Claims
What is claimed is:
1. A volumetric infant feeding unit comprising in combination a
container calibrated for accurate measurement of liquid contents
within the container, said container including an opening at its
top and having exterior threads adjacent said opening, and a
transfer cap, said transfer cap having an internally threaded
depending skirt engaging the exterior threads of the calibrated
container and adapted to engage the threads on a conventional
infant feeding container, and an inwardly extending top portion
defining an opening therein and including a hollow hub extending
from said opening, said inwardly extending top portion being formed
at least partially in an inclined configuration whereby the hollow
hub projects at an inclined angle to facilitate pouring, measuring
and feeding of infant feeding formula, said hub having engaged
thereon an infant feeding catheter for feeding of an infant by the
gavage method.
Description
BACKGROUND OF THE INVENTION
Hospitals must be enabled to provide accurate feeding of special
care infants such as those which are prematurely born. Presently
available infant feeding containers, even those which are
calibrated, are not considered highly accurate. Consequently, at
the present time a pediatric nurse must use a pharmacy-type
graduate in order to measure the exact quantity of formula which
must be fed to a special care infant. The formula is then
transferred to a conventional nursing container, a nipple is
supplied, the nipple is capped with a paper dust cover and the
entire unit is then terminally heated in an autoclave. After
terminal heating the unit is allowed to cool to room temperature
and is then refrigerated. Prior to feeding the infant the container
is heated within the nursery and then fed to the infant. If the
infant consumes the entire contents of the container the hospital
then has an accurate measure of formula intake. As is more usually
the case however, the infant will consume somewhat less than the
amount of formula offered. It is therefore necessary for the nurse
to express the remaining formula into a graduated syringe or other
accurate measuring device in order to determine with accuracy the
quantity of formula the infant has consumed.
SUMMARY OF THE INVENTION
The present invention provides a volumetric feeding system which
permits accurate measurement of the amount of formula consumed by
the infant either orally or by the gavage method without the need
for accurate measurement in a separate measuring device of either
the initial quantity of formula or the remaining formula after
feeding. The system comprises a container calibrated for accurate
measurement of its liquid contents, a nipple which may be attached
to the calibrated container by means of a retaining cap, and a
transfer cap which is engageable with both the calibrated container
and a conventional nursing container. The transfer cap includes a
hollow projecting hub so that when the cap is affixed to a
conventional nursing container, formula can be accurately
transferred to the calibrated container. If the infant cannot be
fed orally, then the transfer cap is affixed to the calibrated
container and an infant feeding catheter is attached to the hub on
the transfer cap and the infant is fed by the gavage method. If the
infant does not consume all of the formula offered, it is necessary
only to determine the amount of formula remaining in the calibrated
container in order to calculate the amount consumed.
For a more complete understanding of the invention, reference is
made to the following drawings and description.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an elevational exploded view, partly in section, of the
infant feeding unit of the present invention including the
calibrated container, nipple and retaining cap.
FIG. 2 is a side elevational view of a conventional nursing unit to
which is attached the transfer cap of the present invention.
FIG. 3 is a top elevational view, taken along the lines 3--3 of
FIG. 2.
FIG. 4 is a side elevational view of the feeding unit of the
present invention including the calibrated container, the transfer
cap affixed thereon and an infant feeding tube attached to the cap
for gavage feeding of an infant.
DETAILED DESCRIPTION
Referring to the drawings and particularly FIG. 1, there is
illustrated an infant feeding unit 10 including a calibrated
container 11 which has accurate calibrations 12 inscribed on the
walls thereof. Forty to 50 milliliters in 1 milliliter increments
is generally sufficient. The container includes a broad base 13 for
stability of the container during introduction of formula therein,
an opening 14 at the top thereof and exterior threads 15 adjacent
the opening 14. For oral feeding of the infant a flexible nipple 16
is positioned over the opening 14 of the container 11, the flexible
nipple 16 having a hollow apertured teat portion 17 and a flange 18
near its lower portion opposite the teat portion 17, the flange
being dimensioned to rest on the opening 14 in the container. A
retaining cap 19 releasably engageable with the calibrated
container 11 is used to secure the nipple 16. In the illustrated
embodiment, the cap 19 has a depending skirt 20 with internal
threads 21 engageable with the threads 15 on the calibrated
container 11. The retaining cap 19 includes an inwardly extending
top portion 22 defining an opening 23 therein through which the
flexible nipple 16 projects when the retaining cap 19 is affixed to
the container 11. FIG. 2 illustrates a conventional nursing
container 30 having a transfer cap 40 attached thereto. As
illustrated, the transfer cap 40 likewise has a depending skirt 41
which has internal threads (not shown) engageable with the threads
15 on the calibrated container 11 as well as with the threads on
the conventional nursing container 30. The inwardly extending top
portion 42 of the transfer cap 40 defines an opening 43 from which
extends a hollow hub 44 for passage of formula. To facilitate
pouring and measuring the formula from the conventional nursing
container 30 to the calibrated container 11, the inwardly extending
top portion 42 of the transfer cap 40 may be formed wholly or
partially in an inclined configuration, as exemplified by the
surface 42a. This results in the hollow hub 44 projecting at an
inclined angle to thereby facilitate pouring, measuring and feeding
of the formula. A vent opening 45 is included in the transfer cap
40 to facilitate transfer and feeding of the formula. Referring to
FIG. 4 there is illustrated the infant feeding unit of the present
invention arranged for gavage feeding of an infant. As is apparent,
the hollow hub 44 of the transfer cap 40 is engageable with an
infant feeding catheter 50 for gavage feeding, the infant feeding
catheter 50 comprising a hub portion 51 engageable with the hub 44
of the transfer cap 40 and a tube 52 extending from the hub. The
tube 52 includes openings 53 for exit of the formula.
When it is desired to use the infant feeding system 10 of the
present invention for either oral or gavage feeding of an infant
the transfer cap 40 is attached to a conventional nursing unit 30
containing the formula. The desired amount of formula is then
transferred through the opening 43 of the transfer cap 40 to the
calibrated container 11. If it is desired to feed the infant
orally, then the nipple 16 is attached to the container 11 with the
retaining ring 19. If however the infant must be fed by the gavage
method, then the transfer cap 40 is removed from the conventional
nursing container 30 and attached to the calibrated container 11.
An infant feeding tube 50 is attached to the hollow hub 44 of the
transfer cap 40 and is then inserted for gavage feeding of the
infant.
To insure effectiveness for the purpose intended, the calibrated
container 11 should permit accurate feeding of infants, i.e.,
within .+-. 1 ml. in 40 ml. As previously explained, with the
present methods and devices hospitals must maintain an autoclave,
adequate refrigeration, and bottle washing and heating facilities.
By presterilizing each of the components of the volumetric infant
feeding unit of the present invention, transfer of formula from the
conventional nursing container 30 to the calibrated container 11
can be conducted aseptically. Feeding of the formula either orally
or by the gavage method can likewise be conducted aseptically,
thereby eliminating the need for autoclaving or refrigerating the
unit. This can be accomplished for example by packaging each of the
component parts and particularly the nipple 16, retaining cap 20
and transfer cap 40 in a blister-type package and then
gas-sterilizing each of the packages by known methods. Accordingly,
hospitals can maintain a completely disposable system without the
need for autoclaving or refrigerating and without the need for a
separate measuring device to determine, with accuracy, formula
intake by an infant.
* * * * *