JP2015506747A5 - Surgical patient support pad and surgical patient support method using the same - Google Patents

Description

The present application relates to a surgical patient support pad for fixing a patient to an operating table when the patient is in the Trendelenburg position, and a surgical patient support method using the same .

The present invention includes a viscoelastic shape memory foam and includes a patient on a tilted surgical table and an orientation in which the patient's head is positioned either below or above the patient's body. A surgical patient support pad configured to hold and assist in a tilted Trendelenburg position, wherein the viscoelastic shape memory foam is tilted by the patient in the Trendelenburg A depth sufficient to assist in holding the patient on a surgical table during a surgical procedure performed while in position and to reduce damage to the patient during the surgical procedure. It is constructed with a thickness and softness sufficient to be deformable .

This application uses the pad (Trendelenburg pad) configured such viscoelastic shape memory foam (hereinafter simply referred to as "viscoelastic foam") comprises a 1, a support which is inclined To help keep the patient in a desired position, such as the Trendelenburg position, and to help minimize the patient's sliding, shifting, or similar undesirable movement on the support platform. Disclose. Such movement can interfere with medical procedures being performed on the patient. The viscoelastic foam also cushions and supports the patient while facilitating the distribution of pressure throughout the patient's body to reduce and / or minimize damage to nerves and / or tissues due to pressure concentration. suppress. For example, viscoelastic foam minimizes brachial plexus disorders, including pain, hypokinesia, or hyposensory in the arms and shoulders by minimizing pressure on the patient's neck, arms, and / or shoulders Or can be eliminated, thereby minimizing or reducing neural events. In at least one possible embodiment, the viscoelastic foam has features selected to promote the desired effect described above. This is discussed in the following paragraph. All of the features discussed in the following paragraphs are in accordance with at least one possible embodiment, and according to at least one possible embodiment, any one or more of these features may be changed to any one or more of these features. Any range disclosed in the following paragraphs is understood to include any value that includes a unit of tenths and hundredths of a particular range.

As shown in FIG. 1, a Trendelenburg pad 102 as a surgical patient support pad can include a fastener 104 that extends outside the longitudinal side of the Trendelenburg pad 102. Each end of the fastener 104 may include hooks and loops, such as Velcro® fasteners, that allow the Trendelenburg pad 102 to be attached to the operating table rail or to the support structure on which the patient is positioned. Configured and arranged to attach to other adjacent structures. The support structure may or may not be a surgical bed. For example, each end of the fastener 104 can include a loop portion 108 and a hook portion 106 that extends outside the loop portion 108. Further, one or more portions of fastener 104 that extend outside Trendelenburg pad 102 may include a label 110 that indicates the orientation of Trendelenburg pad 102 with respect to the operating table. For example, the label 110 can be marked "This side up".

Claims (16)

Comprising a viscoelastic shape memory foam, the patient on the surgical table, which is inclined, the head of the patient includes an orientation than the body Ru are located either below or above the patient, they are inclined A surgical patient support pad configured to hold and assist in a Trendelenburg position ,
The viscoelastic shape memory foam, sufficient and the patient to assist in holding the patient on the surgical table during a surgical procedure to be performed while in the Trendelenburg position obtained by the inclined , and a sufficient thickness and softness to be deformed to a sufficient depth to reduce the damage to the patient during the surgical procedure, surgical patient support pad. Minimizing movement of the viscoelastic shape memory foam and the patient on the surgical table during a surgical procedure in which the patient is in the tilted Trendelenburg position on the surgical table The surgical patient support pad of claim 1, wherein the surgical patient support pad has a sufficient coefficient of static friction between the viscoelastic shape memory foam and the surface of the surgical table. The coefficient of static friction between the viscoelastic shape memory foam and the surface of a surgical table is greater than 0.2, preferably in the range of 0.2 to 1.0. Surgical patient support pad. The viscoelastic shape memory foam reduces the patient's misalignment during the surgical procedure to an amount of misalignment of 25.4 millimeters (1 inch) or less, preferably less than 25.4 millimeters (1 inch). The surgical patient support pad according to any one of claims 1 to 3, wherein the surgical patient support pad is configured to be minimized. Between the viscoelastic shape memory foam and the patient's skin, friction due to one or more friction coefficients between the viscoelastic shape memory foam and the patient and friction due to deformation of the viscoelastic shape memory foam. Or is configured to produce a total friction characteristic including forces such as friction, thereby minimizing the patient's displacement during the surgical procedure without providing a fixation device on the patient's torso. The surgical patient support pad according to any one of claims 1 to 4, wherein: The surgical patient support pad according to any one of claims 1 to 5, further comprising a flat upper surface and a flat lower surface. The viscoelastic shape memory foam, an air flow capable of supplying sufficient air flow around the patient to maintain the patient in Trendelenburg position obtained by the inclined with minimal damage to the patient The surgical patient support pad according to any one of claims 1 to 6, comprising an open cell foam having the same . 8. The flow rate of the air flow of the viscoelastic shape memory foam is from 0.16 liters / second to 0.47 liters / second (0.3 cubic feet / minute to 1.0 cubic feet / minute). The described surgical patient support pad. Fast enough to maintain support of at least a majority of the patient's body on the surgical table during a surgical procedure performed while the patient is in the tilted Trendelenburg position; and
Minimizing obstructive or sudden movements of at least the majority of the patient's body on the surgical table during a surgical procedure performed while the patient is in the tilted Trendelenburg position The surgical patient support pad according to any one of claims 1 to 8, wherein the surgical patient support pad is configured to recover from deformation at a sufficiently low speed. The tilted Trendelenburg position further includes another orientation in which the right side of the patient is positioned above the left side or vice versa, and further includes a combination of the two orientations. The surgical patient support pad according to any one of 1 to 9. The surgical patient support pad according to any one of claims 1 to 10, comprising a single layer of the viscoelastic shape memory foam. The viscoelastic shape memory foam is
In order for the deformation caused by placing an adult torso on a layer about 2.54 centimeters (1 inch) to recover from 50 percent to 80 percent, it is in the range of 2-10 seconds;
To recover from 80 percent to 90 percent, it is in the range of 6-15 seconds,
To recover 100 percent, it is in the range of 10-35 seconds,
The surgical patient support pad according to any preceding claim, comprising a recovery rate. The surgical patient support pad according to any one of the preceding claims, comprising at least in part a viscoelastic shape memory polyurethane foam, preferably consisting entirely of a viscoelastic shape memory polyurethane foam. The surgical patient support pad according to claim 1, comprising a disposable pad. A plurality of fixation straps having a central portion configured to be attachable to the lower surface side of the pad and fastener ends including hook and loop fasteners, and supporting a fixation to the surgical table;
A thickness in the range from 1.905 centimeters (3/4 inch) to 7.62 centimeters (3 inches) or more,
The viscoelastic shape memory foam is
Ball repulsion small enough to minimize patient repulsion during surgery, preferably in the range of 0.1 percent to 5 percent, particularly preferably in the range of 0.1 percent to 1.9 percent When,
A compression set of less than 1 percent at 25 percent compression, preferably less than 0.3 percent at 25 percent compression, small enough to minimize patient damage on the surgical table;
Sufficient indentation deflection to assist in holding the patient;
Sufficient tensile strength to minimize tearing of the surgical patient support pad in use;
A density set to provide the ball repulsion, the compression set, the air flow, the indentation deflection, the tensile strength, and the coefficient of static friction;
The surgical patient support pad according to any one of claims 7 to 14, comprising: Using surgical patient support pad according to any one of claims 1 to 15, with at least a surgical operating table tilted so surgical treatment bench, damage to the patient caused by the pressure applied to the portion of the patient's body surgical patient support how to minimize unwanted movement of the patient with minimized.