Surgery – Instruments – Internal pressure applicator
Patent
1998-12-24
2000-02-15
Buiz, Michael
Surgery
Instruments
Internal pressure applicator
604 55, A61M 2900
Patent
active
060247533
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a device for staunching uterine bleeding comprising an expandable balloon and a tubular handle connected therewith for the insertion of the balloon into the uterine cavity, a hose for connecting the balloon to a fluid source, and means for supplying fluid under pressure to the balloon to effect and maintain the expansion thereof, the balloon being dimensioned to fill the uterine cavity at expansion and to exert pressure against the bounding wall thereof over substantially the total surface of said wall.
2. Description of the Related Art
EP-A1-0 141 589 discloses a device of this kind which comprises a semi-rigid flexible rubber tube and an expandable balloon of elastic foldable material, which is connected to the tube and can be expanded by pressurized fluid, gas or liquid, being supplied to the balloon through the tube. In the prior art device the tube forms a handle for the insertion of the balloon into the uterine cavity.
BRIEF SUMMARY OF THE INVENTION
The purpose of,the invention is to provide a device for staunching uterine bleeding, which can be used easily and allows the treatment to be performed at great safety in hygienic and operative respect in order to staunch uterine bleeding also under severe conditions, and which allows accurate adjustment to varying probe measures as well as control of the pressure in the balloon at contraction of uterus while an hemostatic effect being maintained over the total bounding surface of the uterine cavity.
This is achieved by providing a device for staunching uterine bleeding which is of the kind referred to above and according to the invention has obtained the characterizing features of claim 1.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
In order to explain the invention in more detail an illustrative embodiment of the device will be described reference being made to the accompanying drawings in which
FIG. 1 is a plan view of a balloon and hose unit forming part of the device,
FIG. 2 is a fragmentary side view of a handle in the balloon and hose unit,
FIG. 3 is a cross-sectional view of the handle along line III--III in FIG. 2,
FIG. 4 is a plan view of a pump and control unit forming part of the device for supply of liquid to the balloon,
FIG. 5 is a fragmentary plan view of a modified embodiment of the balloon and hose unit of the device, and
FIG. 6 is a view corresponding to FIG. 5 with the balloon further expanded.
DETAILED DESCRIPTION OF THE INVENTION
The balloon and hose unit disclosed in the drawings FIGS. 1-3 comprises a tubular handle 10 of translucent or transparent soft plastic or another comparable material, which is easy to grip and forms flat upper and lower sides and curved side surfaces as will be seen from FIG. 3. At one end the handle forms a socket 11 having a outwardly flaring end portion 12. A hose 13 which consists preferably of silicone rubber (medical quality) or another comparable material and for reasons which will appear below preferably is translucent or transparent is pushed through the handle and the socket and projects therefrom at the flaring portion. The hose is glued to the handle. A scale 14 is provided on the upper side of the handle, and on this side there is also indicated a circular field 15 with legend PRESS.
A tube 16 which preferably consists of plastic or rubber of medical quality such as polyethylene (LE6601-PH) and is relatively stiff but nevertheless can be bent and can maintain temporarily the bent shape is partly inserted into hose 13 through the end thereof which protrudes from socket 11 and can be displaced axially in relation to the hose and thus in relation to the handle. The tube can have a colour which contrasts with the colour of the handle, and the position of the inner end 16A of the tube, which as a consequence thereof can be easily seen through the handle can be read at scale 14. In FIG. 1 the end is substantially at 107 on the scale. By pressing the thumb against pressure field 15 on the handle pressure
REFERENCES:
patent: 4552557 (1985-11-01), Rangaswamy
patent: 5372584 (1994-12-01), Zink et al.
patent: 5409496 (1995-04-01), Rowden et al.
patent: 5624399 (1997-04-01), Ackerman
Claren Jan
Ulmsten Ulf
ATOS Medical AB
Buiz Michael
Truong Kevin
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