FR2514636A1 - VENTILATION DEVICE FOR BAG COLLECTOR OF MATERIALS TO BE EVACUATED IN ABDOMINAL SURGERY - Google Patents

Abstract

A. VENTILATION DEVICE FOR COLLECTOR BAG OF MATERIALS TO BE DISCHARGED IN ABDOMINAL SURGERY. B. DEVICE CHARACTERIZED IN INCLUDING AN 8-VALVE CLOSURE ELEMENT ELASTICALLY APPLIED AGAINST A 10-VALVE SEAT EXTENDING AROUND VENT PORT 4 OF THE BAG WALL. C. THE INVENTION RELATES TO EQUIPMENT FOR ABDOMINAL SURGERY.

Description

"Ventilation device for collection bag of materials to be evacuated

  The present invention relates to a ventilation device for mounting on a fluid-tight bag, with a vent hole in the wall of the bag for

  the gas outlet out of the bag, and with an opening of

  in the wall of the bag which can be placed in front of

  an opening of the abdomen of a patient during an opera-

  surgical procedure, and hermetically sealed to the skin

cloning this opening,

  In some surgical operations

  the whole intestinal system must be taken out

  of the abdomen through an opening in the

  As a result, the patient must use a bag to collect the substances to be discharged in the form of liquids, solids and gases. This bag is connected to a seal at the opening of the abdomen to allow

  continuous evacuation function during the operation.

  Bags of this kind are often provided with a ventilation device to ensure a gas evacuation.

  the absence of such a ventilation device, it is

  would swell the bag that could separate the bag from

  skin would result in considerable inconveniences

for the user.

  To this day, ventilation devices

  known as a coal filter, which is

  mounted in the wall of the e; which forces gases to pass through

  this filter before leaving the bag

  the gases are decanted to prevent an air outlet con-

  tom-born. However, these filters do not work

  always satisfactorily because they do not

  As a result, there can not be established within the bag a suitable pressure capable of regulating the discharge flow out of the intestinal tract. In addition, the filter itself

  exposed to being flooded, so that

  quide can escape from the bag through the filter, for example

  if the patient places himself in a position in which the filter is at a level below

  the level of the liquid in the bag, resulting from other

considerable convenients.

  The present invention aims to remedy the defects of known ventilation devices For this purpose, the device of the invention is characterized by a valve body resiliently applied to a seat

  surrounding the vent hole of the bag wall

  This device acts as a safety valve against excess pressure, regulating the pressure inside the bag, being chosen with a

  appropriate elasticity for the establishment of a

  such that the valve opens and lets the gases escape. This pressure-regulating effect on the patient system gives Esure a greater degree of physical well-being for the patient by

  drainage which, as a whole, corresponds to normal.

  In addition, this valve gives the guarantee that no liquid

  can not flee from the bag: because a passage through the ori-

  Ventilation is effectively closed when the valve is closed. This is so in most of the time.

  such that the risk of leakage of liquid is practically

excluded.

  According to an embodiment of the invention, the valve seat is formed in a valve body surrounding the inner vent port,

  in which the external vent hole is also formed.

  the valve shutter element being mounted in the

  inside this body between the two vent holes

  valve body is made of synthetic material

  appropriate, without the inconvenience of being too

large dimension.

  According to another characteristic of the invention

  the valve shutter member is formed as a single disc-shaped piece provided on its periphery with a number of resilient tongues which are supported by

  against the inner wall of the valve body and pres-

  the shutter element against the vent seat.

  Finally, according to the invention, the vent hole is provided with a suitable carbon filter, mounted in the outer orifice, to eliminate odors. The invention is described below with reference to an exemplary embodiment with reference to the accompanying drawings, in which: FIG. 1 is a view from outside the

  ventilation device mounted on the wall of a bag

reader,

  Figure 2 shows the valve body pro-

in fact,

  FIG. 3 is a view, in the direction III-

  III of FIG. 2, of the device with the valve in position

  FIG. 4 is a view of the device with

the valve in the open position.

  Figure 1 shows an example of how

  4.- the ventilation device mounted on the wall of a bag collector 1 The device comprises a base plate

  2, which is equipped at the center with a drill hole

  wind 4, according to Figures 3 and 4 The wall of the bag collector is perforated there, or it is itself provided with one or more orifices to create a passage for the gases from the inside of the bag to

through the piercing 4.

  On the base plate 2 is fixed a valve body, which, in the example shown, consists of a round valve body 3, which is provided with a valve seat 10 encircling the vent hole 4 of the wall inside this valve body 10 is constituted a

  annular chamber 5 in which is placed the ob-

  Valve body 7, 8 On its outer side, the valve body 10 is provided with an upside-down edge 3 delimiting

the external vent port 6.

  The valve shutter element itself is shown in FIG. 2 It consists, for example, of soft disk-shaped elastic polyamide, the inside of which forms the shutter member 8 along its length.

  around the circle, a number of

  elastic rails 7 protruding from the element,

  shown in Figures 3 and 4 Between the shutter element

  8 and the tabs 7 remain slots 9 to

  to which the gases can pass.

  The shutter element 7, 8 can be housed in

  the annular chamber 5 of the valve body 10, in which

  it occupies the position shown in Figure 3, with the resilient tongues 7 applied against the inverted edge 3 of the valve body, the shutter member being applied

  against the valve seat 10, so that all

  gas from the inside of the bag to the outside.

laughter is prevented.

  When the pressure of the air inside the bag increases, it forces, for a predetermined level of pressure, the shutter element 8 to be raised and

  take the open position shown in Figure 4.

  The gases can then escape, and when the internal pressure falls to a certain level, the tongues

straighten to close the passage.

  In the case in which a carbon filter,

  not shown, is mounted in the bore 6, the gases can

  to be deodorized, eliminating the inconvenience of

cuation of bad smells.

  Instead of the valve body described above and shown, it is possible to imagine a valve in which the outer vent port is placed along the

  outer edge of the valve body The gases are then guided

  dice outwards along the circular perimeter of the

  valve body When a carbon filter is placed

  turn of the valve body, one has the possibility of

  effective dorization, because the gases cross a portion

  of the filter before venting to the outside.

  The annular width of the filter can be provided from one

  sufficiently large, and the filter may be of a

  to be closed on its sides, so that the gases

  can only cross it radially.

6.-

Claims (4)

R E V E N D I C A T I 0 N S CLAIMS   1. Ventilation device for mounting on a fluid-tight collecting bag provided with a vent port in its wall for the gas outlet and an inlet port, which can be placed opposite a an opening of the abdomen caused by an operation   surgical and hermetically sealed against the surrounding skin.   characterized in that it comprises a valve closure member (8) resiliently applied against a valve seat (10) extending   around the vent port (4) of the wall of the bag.   2. Device according to claim 1, characterized in that the valve seat (10) is formed in a valve body (3) surrounding the inner vent port (4) and in which is formed the orifice of outer vent (6), the valve plug member (8) being   mounted inside (5) of this valve body.   3. Device according to one of the claims   1 and 2, characterized in that the valve plug member (8) is disk-shaped having on its periphery a number of resilient tongues (7).   leaning against the inner wall of the body of   pope (3) and press the shutter member against the seat (10).   4 Device according to any one of   Claims 1 to 3, characterized in that a filter   coal is mounted in the outer vent port (6) of the valve body (3).