Manual resuscitation breathing system

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Intersurgical reserves the right to discontinue or make changes or updates with respect to the catalogue or the content of the catalogue at any time without notice. Block the part that connects to the patient and squeeze the bag with one hand. If there still are problems, use a different bag. If your patient needs oxygen, attach tubing from the bag to the oxygen source.

Turn the flowmeter to liters per minute. To Bag Your Patient. How deeply and how fast you squeeze the bag depends on the size of your patient. You will have a chance to practice this on a doll, and your patient.

You may increase how often or how much you squeeze the bag, if your patient is having trouble breathing. To Clean the Bag. Wipe off any mucus from the bag with a clean cloth before putting it away. More particularly, the invention relates to manual ventilation or resuscitation devices with control over the amount and rate of e.

Manual ventilation or resuscitation is performed on an individual when they are unable to breathe independently. Typically, this occurs when an individual is transported from one section of a hospital to another section such as an emergency room and an intensive care unit.

Manual resuscitation also occurs during cardiopulmonary resuscitation CPR , which is a standard technique applied to victims of cardiopulmonary arrest with the goal to re-establish normal cardiac and respiratory function.

Ventilation from a manual resuscitation device is currently provided by a self-filling elastomeric enclosure or bag.

This bag is compressible by hand, a face-fitting mask or intubation tube in fluid communication with an outlet passage of the bag, and a one-way valve between the mask and bag to permit only fluid passage from the bag to the mask.

The bag also has an inlet passage, typically with one opening for air and another, usually smaller opening for receiving oxygen. By squeezing the bag with their hand s , a clinician delivers air or oxygen to an individual, then releases the bag to permit it to expand to full size and thereby draw air or oxygen through the inlet passage.

The amount of air received by the lungs of the individual corresponds to the volume of the bag. A larger bag provides a greater maximum volume of air to be pumped into the individual. Children and infants typically have smaller lungs than an adult, and therefore conventional manual resuscitation devices are provided in different sizes; e.

Each size provides a different maximum volumetric output of air. Depending on factors such as physical condition, body size, age, sex, etc. Unfortunately, current manual ventilation or resuscitation devices are not suitable for the desired monitoring and control of tidal volume delivery.

This provides them a rough estimate of the volume of air they are providing and a tactile feel for when the lungs are non-compliant, i. Although self-filling respiration resuscitation enclosures or bags can be selected on the basis of known maximum volumes, the volume actually delivered can vary substantially among several operators, dependent upon factors such as hand size, number of hands used, technique, enthusiasm and fatigue.

These variations have been shown to be as much as 60 percent of the optimal tidal volume. Frequency can also vary between users. The present invention is a single manual ventilation or resuscitation device. The body of the device has rigid panels that encompass a sealed volume with an inlet mechanism and an outlet mechanism. The rigid panels are movable with respect to each other to allow the body to move between an uncompressed state and a compressed state. Once in compressed state a volume restoring mechanism is responsible to restore the volume from the compressed state back to the uncompressed state.

One of the key objectives of the invention is to be able to hold the body with one hand and to compress the body with that one hand. To meet this objective, in one embodiment, the body is characterized by having a displacement in a direction of a hand displacement e.

In another embodiment, the body is characterized by having a displacement in a direction of a hand displacement e. The displacement of a panel are up to 85 mm, preferably up to mm, and more preferably mm. Some of the displacements would have to comfortably fit between the thumb, one or more fingers and the web of the hand. In other words, the natural range of a grasping motion of a hand defines these displacements. The volume changes between the states ranges from 1 to cc infant and child , to cc child to adult , or 1 to cc infant to adult.

A size adjuster is included to adjust one or more of the body displacements to change the dimension of the uncompressed state or volume. These size adjustments are up to mm, and preferably up to 25 mm. The objective of the size adjuster is to adjust the displacement to then adjust the volume of e.

Hence the size adjuster is also referred to as a volume adjuster. A frequency adjuster is included to adjust the time to restore the volume from the compressed state to the uncompressed state or to adjust the time to compress the volume from the uncompressed state to the compressed state.

An example of tactile feedback is to include tactile feedback areas, e. These areas allow the user to feel the compression force or lung resistance. These tactile areas are preferably sized and positioned to fit a thumb or one or more fingers of the user's hand. An example of a visual feedback mechanism is to provide the user feedback over the size volume adjustments or the frequency. An example of an audible feedback mechanism is to provide the user feedback over e.

Yet another advantage is that multiple devices could easily be stacked or nested with each other. In exemplary embodiments, the design and geometry could be configured to include such stacking or nesting capabilities. The objectives and advantages of the present invention will be understood by reading the following detailed description in conjunction with the drawings, in which:.

The hook-up to a mask or intubation tube and outlet is left out for clarity. Although the following detailed description contains many specifics for the purposes of illustration, anyone of ordinary skill in the art will readily appreciate that many variations and alterations to the following exemplary details are within the scope of the invention.

Accordingly, the following preferred embodiments of the invention are set forth without any loss of generality to, and without imposing limitations upon, the claimed invention. A three-dimensional view of one example of the ventilation or resuscitation device is shown in FIG. In general, three parts can be distinguished: a body , an input mechanism to allow input of e.

Body distinguishes rigid panels that are movable with respect to each other. The key idea of the design of body with rigid panels is to encompass a volume that can contain e. Another key idea of the invention is to be able to hold the body of the device with one hand and to compress the body with that one hand. The concept as conceived in this invention, as will be clear from reading the description, could be generalized to a body with rigid panels whereby the body is characterized as having a displacement in a direction of a hand displacement and at least one other direction other than that particular hand displacement.

The pleats are constructed sufficiently thick such that the bellows totally recovers to full inflation in less than four seconds after being completely compressed. A further object of the invention is that the bag can be connected via a section of flexible tubing to a two way inhalation-exhalation valve, where the connectingn tubing enables the operator to move the resuscitator bag away from the face of the distresed individual, enabling the operator to have a nearly unobstructed view of the patient.

A further object of the invention is that the bag can be connected to a regulated supply of oxygen or another reservoir of oxygen via an attachment that connects the air intake valve to the oxygen supply. A final object of the invention is that the bag is compatible with a full line of resuscitation equipment i. The bag 1 is approximately two liters in volume and is shaped, as shown in FIG. The bag is formed using a molding process from polyethylene, and therefore except for a few working elements, it is comprised substantially of a single polymeric material.

The air inlet valve 7 is a one way valve and it is closed during compression. The angle 10 formed by the plates 2 of the bellows is approximately 40 degrees when the bag is fully distended. The plates 2 and the lateral collapsible pleated wall 4 are hinged at the anterior portion of the bellows to a stiffened, semi-cylindrical shaped element or binding 5. The binding's walls are contiguous with the anterior most portions of the plates and both sides of the lateral pleated walls.

The air outlet 8, an orifice having a rigid, ridged cylindrical neck, is centrally located in the binding 5. The air intake valve 7, which is also an orifice having a rigid ridged cylindrical neck which in addition is fitted with a one-way valve is located in either of the lateral walls 7 of the binding. The lateral collapsible walls 4 and the posterior collapsible wall 11 shown in FIG.

The depth of pleating of the lateral walls 4 tapers as you move anteriorly. The pleating has an essentially radial distribution about the lateral walls 9 of the binding. The pleated walls, 11 and 4, act under compression like a recoiling spring ot automatically restore the bag to a state of full distention full inflation.

The binding 5 will also act to restore the bellows to full distention, however during compression, the binding will tend to deform the air intake valve 7 and the air outlet 8 which could result in leaks, therefore, there is a groove 15 at the point of junction between the plate 2 and the binding 5, the groove 15 permits the plate to be folded without distorting the binding.

During decompression the parptial vacuum exers a force on the two plates causing them to want to belly inward. This movement has been essentially eliminated by reinforcing the plates with a thick layer of plastic 3. The ngled orientation of the folds of the pleated lateral and posterior walls 11 and 4 prevents the thinner, relatively flexible, compressible wall from yielding either under compression or decompression.