IP Library › Granted Patent US 12,239,589
Granted Patent B2
US 12,239,589 · App. 18/206,637 · Granted Mar 4, 2025

Mattress cover and mattress assembly

Inventors: James K. Galer (Byron Center, MI); Carrie Klain (St. Charles, IL); Patrick Lafleche (Kalamazoo, MI); Justin Raymond (Jackson, MI); Kevin M. Patmore (Plainwell, MI); Alexey Titov (Redmond, WA); Henry Kuhnen (Mount Pleasant, SC); Ming Chen (Ann Arbor, MI)
Assignee: Stryker Corporation
A61G7/001A47C27/003A61G7/05769A61G13/009
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Quick Facts
Patent No.
US 12,239,589
App. No.
18/206,637
Granted
Mar 4, 2025
Kind
B2
Abstract

A mattress cover for a mattress providing movement therapy to a patient. A patient support portion covers the upper surface of the mattress, and a bottom portion is coupled to the patient support portion. The mattress cover may substantially encase the mattress. An augmenting feature is associated with a peripheral portion with the augmenting feature adapted to move between a stored configuration, and a deployed configuration in response to increasing thickness of the mattress during the movement therapy. The augmenting feature may include concertinaed material, such as thermoformed plastic, and/or a fold of material coupled to the peripheral portion. The patient support portion and the bottom portion may at least partially overlap and be moveable relative to one another. The mattress cover may be included on a mattress overlay having a patient turning device, or on the mattress supported on a patient support apparatus.

Claims (47)

1. A mattress cover for coupling to a mattress having an upper surface, a lower surface, sides, and an inflatable bladder for adjusting a size of the mattress for supporting a patient, the mattress cover comprising:

a patient support portion configured to cover the upper surface of the mattress;

a bottom portion coupled to the patient support portion and configured to cover the lower surface of the mattress;

peripheral portions extending between the patient support portion and the bottom portion such that the mattress cover is configured to substantially encase the mattress; and

an augmenting feature associated with one of the peripheral portions and being configured to move between a stored configuration in the absence of expansion of the inflatable bladder, and a deployed configuration having an expanded size in response to expansion of the inflatable bladder, the augmenting feature including a resilient member configured to bias the augmenting feature toward the stored configuration.

2. The mattress cover of claim 1 , wherein one of the peripheral portions comprises a width defined between the patient support portion and the bottom portion with the width configured to increase as the augmenting feature moves from the stored configuration to the deployed configuration, and decrease as the augmenting feature moves from the deployed configuration to the stored configuration.

3. The mattress cover of claim 1 , wherein the augmenting feature further includes concertinaed material coupled to the one peripheral portion with the concertinaed material configured to assume an expanded state in the deployed configuration and a natural state in the stored configuration.

4. The mattress cover of claim 1 , wherein the augmenting feature further includes at least one coupler configured to constrain the augmenting feature when the augmenting feature is in the stored configuration.

5. The mattress cover of claim 4 , wherein the augmenting feature further includes a fold of material coupled to the one peripheral portion with the fold of material configured to be positioned adjacent the one peripheral portion in the stored configuration and further configured to extend away from the one peripheral portion in the deployed configuration.

6. The mattress cover of claim 5 , further comprising a securing member disposed between the fold of material and the one peripheral portion with the securing member configured to prevent relative movement between the mattress cover and the mattress.

7. The mattress cover of claim 5 , wherein the fold of material further includes a coupled end coupled to the one peripheral portion proximate the patient support portion and a free end positioned adjacent the one peripheral portion in the stored configuration.

8. The mattress cover of claim 7 , wherein the resilient member is coupled to the fold of material at the free end with the resilient member biasing the fold of material to the stored configuration.

9. The mattress cover of claim 7 , wherein the resilient member is coupled to another one of the peripheral portions such that the resilient member is configured to be tensioned by a force transverse to the resilient member when the augmenting feature is moved to the deployed configuration.

10. The mattress cover of claim 7 , wherein the at least one coupler includes:

a coupler operatively attached to the one peripheral portion, and

a counterposing coupler operatively attached to the fold of material with the coupler and the counterposing coupler being releasably coupled to one another.

11. The mattress cover of claim 1 , wherein the augmenting feature further includes:

a roller configured to pivot about an axis with one of the peripheral portions at least partially furled about the roller; and

a biasing member coupled to the roller and configured to bias the roller against unfurling of one of the peripheral portions as the augmenting feature moves from the stored configuration to the deployed configuration.

12. The mattress cover of claim 1 , wherein the inflatable bladder of the mattress is arranged for providing movement therapy to adjust the size of the mattress comprising increasing a thickness of the mattress with the patient disposed thereon;

wherein the patient support portion has an outer periphery sized so that a majority of the patient is supported on the patient support portion within the outer periphery during the movement therapy; and

wherein the augmenting feature moves from the stored configuration in the absence of the movement therapy to the deployed configuration having an expanded thickness in response to increasing the thickness of the mattress during the movement therapy.

13. The mattress cover of claim 12 , wherein the patient support portion further includes a first area and a second area different from the first area with the first area formed from a first material having greater relative elasticity than a second material forming the second area.

14. The mattress cover of claim 13 , wherein the first area is positioned proximate the outer periphery of the patient support portion and the second area is positioned inwardly from the outer periphery relative to the first area such that the patient support portion is configured to concentrate elastic expansion to the first area in response to expansion of the inflatable bladder.

15. The mattress cover of claim 13 , wherein the first and second materials are formed in the first and second areas using at least one of additive manufacturing and three-dimensional printing technology.

16. A mattress cover for coupling to a mattress having an upper surface, a lower surface, sides, and an inflatable bladder for adjusting a size of the mattress for supporting a patient, the mattress cover comprising:

a patient support portion configured to cover the upper surface of the mattress;

a bottom portion opposite the patient support portion and configured to cover the lower surface of the mattress such that the mattress is disposed between the patient support portion and the bottom portion; and

an augmenting feature configured to move between a stored configuration in the absence of expansion of the inflatable bladder, and a deployed configuration having an expanded size in response to expansion of the inflatable bladder, the augmenting feature including a resilient member configured to bias the augmenting feature toward the stored configuration;

wherein the patient support portion is configured to at least partially overlap the bottom portion and move relative to the bottom portion to accommodate increasing the size of the mattress in response to expansion of the inflatable bladder such that the overlap decreases with increasing size of the mattress.

17. The mattress cover of claim 16 , wherein the bottom portion includes an upper edge and the patient support portion completely overlaps the upper edge when placed on the upper surface of the mattress; and

wherein the patient support portion and the bottom portion are configured to overlap adjacent to opposing sides of the mattress.

18. The mattress cover of claim 16 , wherein the resilient member is coupled to the patient support portion and the bottom portion with the resilient member biasing the patient support portion towards the bottom portion and the bottom portion towards the patient support portion.

19. The mattress cover of claim 16 , wherein the inflatable bladder of the mattress is arranged for providing movement therapy to adjust the size of the mattress comprising increasing a thickness of the mattress with the patient disposed thereon;

wherein the patient support portion has an outer periphery sized so that a majority of the patient is supported on the patient support portion within the outer periphery during the movement therapy; and

wherein the augmenting feature moves from the stored configuration in the absence of the movement therapy to the deployed configuration having an expanded thickness in response to increasing the thickness of the mattress during the movement therapy.

20. A mattress assembly comprising:

a mattress having an upper surface, a lower surface, sides, and an inflatable bladder configured to adjust a size of the mattress for supporting a patient, the mattress cover comprising; and

a mattress cover comprising:

a patient support portion covering the upper surface of the mattress,

a bottom portion coupled to the patient support portion,

peripheral portions extending between the patient support portion and the bottom portion, the peripheral portions covering the sides of the mattress, and

an augmenting feature to move between a stored configuration in the absence of expansion of the inflatable bladder, and a deployed configuration having an expanded size in response to expansion of the inflatable bladder, the augmenting feature including a resilient member configured to bias the augmenting feature toward the stored configuration.

21. The mattress assembly of claim 20 , wherein the augmenting feature further includes a roller configured to pivot about an axis with one of the peripheral portions at least partially furled about the roller, and a biasing member coupled to the roller and configured to bias the roller against unfurling of the one peripheral portions as the augmenting feature moves from the stored configuration to the deployed configuration.

22. The mattress assembly of claim 20 , wherein the inflatable bladder of the mattress is configured to provide movement therapy to adjust the size of the mattress comprising increasing a thickness of the mattress with the patient disposed thereon;

wherein the patient support portion of the mattress cover has an outer periphery sized so that a majority of the patient is supported on the patient support portion within the outer periphery during the movement therapy; and

wherein the augmenting feature of the mattress cover moves from the stored configuration in the absence of the movement therapy to the deployed configuration having an expanded thickness in response to increasing the thickness of the mattress during the movement therapy.

Assignments (2)
CHANGE OF ADDRESS Recorded Dec 18, 2024
From: STRYKER CORPORATION
To: STRYKER CORPORATION
Reel/Frame 069737/0184 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 26, 2023
From: LAFLECHE, PATRICK; GALER, JAMES K.; TITOV, ALEXEY; RAYMOND, JUSTIN; CHEN, MING; KLAIN, CARRIE; KUHNEN, HENRY; PATMORE, KEVIN M.
To: STRYKER CORPORATION
Reel/Frame 064390/0778 →
Continuity (4)
Continuation 17500262 · Oct 13, 2021
Continuation 16220589 · Dec 14, 2018
Provisional Application 62611207 · Dec 28, 2017
Related Publication 20230310237A1 · Oct 5, 2023
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