The present invention relates to a hospital bed and more particularly to a hospital bed for a bariatric patient. Bariatric beds are designed for use by obese patients. Bariatric beds typically include a larger than average heavy duty frame to support the patient size and weight. The bed of the present disclosure is configured to support patients up to 1000 pounds, preferably patients between 250 pounds and 1000 pounds, although it is within the scope of the present invention to accommodate patients of 400 pounds or more including weights of greater than 1000 pounds.
According to one embodiment of the present invention, a patient support includes a frame, a deck, and a mattress supported by the deck. The mattress includes an upper surface and a lower surface. Additionally, a plurality of siderails is provided. The siderails are configured to move between a blocking position, an intermediate position, and an egress position.
According to another illustrative embodiment of the invention, a patient support includes a frame, a deck configured to move between a first width and a second width, a mattress supported by the deck, and a width adjustment assembly configured to move the deck between the first width and the second width.
Additional features and advantages of the invention will become apparent to those skilled in the art upon consideration of the following detailed description of illustrated embodiments exemplifying the best mode of carrying out the invention as presently perceived.
The detailed description particularly refers to the accompanying figures in which:
The embodiments described below and shown in the figures are merely exemplary and are not intended to limit the invention to the precise forms disclosed. Instead, the embodiments were selected for description to enable one of ordinary skill in the art to practice the invention.
Referring initially to
The support deck 18 includes sliding panels 27 and siderail sliding panels 29 which may be moved laterally to expand and retract the width of the deck 18. Examples of expanding support decks are provided in U.S. Patent Application entitled “BARIATRIC BED”, filed Jul. 28, 2004 (60/591838) and U.S. Pat. Nos. 6,212,714 and 6,357,065, the disclosures of which are expressly incorporated by reference herein.
A headboard 28 is mounted to the intermediate frame 16 adjacent a head end 30 of patient support 10, and a footboard 32 is mounted to the intermediate frame 16 adjacent a foot end 34 of patient support 10. The patient support 10 further includes a pair of head end siderail assemblies 36 and a pair of foot end siderail assemblies 38 coupled to the support deck 18 through the associated siderail sliding panels 29 on opposite sides of the patient support 10.
Head end and foot end siderail assemblies 36, 38 are configured to move between a first deck position, as shown in
The blocking position is intended to prevent a patient (not shown) from exiting from patient support 10. The intermediate position allows a caregiver (not shown) access to the patient while still maintaining some hindrance to patient egress. The egress position allows a caregiver additional access to the patient and for movement of the patient from patient support 10. Additionally, the blocking, intermediate, and egress positions of the siderail assemblies 36, 38 allow for reducing the likelihood of patient egress and allowing a low bed exit position (not shown). Each of the blocking, intermediate, and egress positions may be secured in position with a latching mechanism to be described herein.
As shown in
Upper siderail assemblies 400, 402 include respective upper members 406, 408, respective lower members 410, 412, curved grip members 414, lower assembly receiving members 416a-c, stoppers 415, and upper release assemblies 417. Head end upper siderail assembly 400 further includes a pair of blocking members 418. Blocking members 418 cooperate with upper member 406 to define a pair of openings 420 both sized to receive a removable controller (not shown). Examples of the removable controller are provided in U.S. Pat. No. 6,691,346, the disclosure of which is expressly incorporated by reference herein. Additionally, foot end upper siderail assembly 402 includes a blocking member 422. Head end siderail assembly 36 and foot end siderail 38 are similar and description of operation and components of head end siderail assembly 36 is interchangeable with foot end siderail 38. The differences between assemblies 36, 38 are mostly cosmetic and not functional.
As shown in
As shown in
Interactive members 422a-c are cylindrical tubes sized to be received by respective receiving members 416a-c. Interactive member 422a includes a channel 435 configured to receive stopper 415. Preferably, stopper 415 is a screw and a washer threaded into Interactive member 422a. Stopper 415 prevents removal of upper siderail assemblies 400, 402 from lower siderail assemblies 404. Interactive member 422c supports biasing spring 430 which is received inside receiving member 416c to bias upper siderail assembly 400 towards the blocking position. Each interactive members 422a-b includes an upper latch opening 446 and a lower latch opening 448. Additionally, interactive member 422b receives rotation stop 432 and is received by receiving member 416b.
Release assembly 431 includes a release shaft 450, a release shaft tube 452, a release shaft spring 454, and a washer 456. Rotation assembly 434 includes a knob 458, a screw 460, an end cap 462, a locking hub disk 464, and a locking hub shaft 466. Locking hub disk 464 and locking hub shaft 466 cooperate to form a locking hub assembly 468. Release shaft 450 includes body 469 having a first end 470 and a second end 472, an opening 474, a stopper end 476, and a rotation stopper groove or channel 478.
Main body 433 includes a pivot end 480 and a rotation end 482. Pivot end 480 includes a pivot end plate 484, a pair of screws 485, a pair of washers 486, a pivot bar 488, and a mounting plate 490. Mounting plate 490 includes a pair of threaded holes 492. Pivot end plate 484 includes a pair of screw holes 494 and bar hole 496. Screws 485 go through holes 494 and thread into threaded holes 492. Pivot bar 488 is welded to bar hole 496. Rotation end 482 includes a threaded hole 498, a hub shaft opening 500, and a release shaft opening 502. Screw 460 fits in an opening 504 in end cap 462 and threads into threaded hole 498 holding end cap 462 in place. Hub shaft opening 500 receives and hold locking hub assembly 468.
Second end 428 includes a pair of set screws 505 and a body 506 having a pair of set screw openings 508, a shaft opening 510, and hub shaft opening 500. First end 426 includes a washer 512 and a pair of wave washers 514. Washer 512 provides a bearing surface for wave washers 514. Wave washers 514 provide resistance so upper rail assembly 400 does not abruptly swing down. Set screws 505 thread through set screw openings 508 to hold release shaft tube 452 in place.
Rotation stop 432 includes a spring 516 and a body 518 including a release shaft opening 520. Release shaft opening 520 is sized to receive stopper end 476 and positioned over rotation stopper channel 478. When siderail assemblies 400, 402 are in the blocking position, release shaft opening 520 is biased upwards into contact with rotation stopper channel 478 preventing rotation assembly 434 from allowing siderail assemblies 400, 402 to rotate. When siderail assemblies 400, 402 are in the intermediate or egress positions, release shaft opening 520 is positioned to allow stopper end 476 to move through opening 520 allowing rotation of siderail assemblies 400, 402.
As shown in
In assembly, bracket 522 bolts to a mounting plate 564 (shown in
As shown in
Adjustment assembly 436 is configured to slide into receiving opening 573. Spring clip 569 prevents removal of adjustment assembly 436 from adjustment member 438a during operation. While in the first deck position, shown in
As shown in
In operation of width adjustment of deck 18, siderail sliding panels 29 must be extended. The caregiver pushes knob 566 inwards towards frame 12. Knob 566 is coupled to extension bar 563. Extension bar 563 includes a spring clip receiver 582. Spring clip receiver 582 is configured to push spring clip 568. As knob 566 moves, extension bar 563 moves away from the caregiver and out of adjustment member 438a. Spring clip receiver 582 depresses locking portion 574 of first spring clip 568 and allows slide assembly 29 to be pulled until locking portion 574 of second snap button 569 engages the end of the socket (not shown). Locking portion 574 of spring button 568 is then locked in the socket hole and second snap button 569 is locked at the end of the socket preventing movement of slide assembly 29 from moving in either direction. Spring clip receiver 582 is a channel of sufficient length to allow locking portion 574 to remain in extended deck width hole 572 and allow knob 566 to return to its initial position. In alternative embodiments, there could be multiple width positions requiring additional deck width holes.
In operation to move between the intermediate position (
Additionally, when siderail assemblies 400, 402 are in the blocking position, release shaft opening 520 is biased upwards into contact with rotation stopper channel 478 preventing rotation assembly 434 from allowing siderail assemblies 400, 402 to rotate. When siderail assemblies 400, 402 are in the intermediate or egress positions, release shaft opening 520 is positioned to allow stopper end 476 to move through opening 520 allowing rotation of siderail assemblies 400, 402. This allows rotation of siderail assemblies 400, 402 only when the siderail is in the intermediate position. In alternative embodiments, rotation stop 423 could be removed allowing rotation in all positions.
In operation to move between the intermediate position (
Another illustrative embodiment siderail assembly 36′ is shown in
Upper siderail assembly 602 includes, lower assembly receiving members 616a, 616b and an upper release assembly 617. Lower assembly 604 includes lower assembly interactive members 622a, 622b configured to be received by respective receiving members 616a, 616b.
As shown in
Release members 728a, b are configured to move between a locked position interacting with an intermediate position opening (not shown) and a locked position interacting with a blocking position opening (not shown). Both intermediate position opening (not shown) and blocking position opening (not shown) located through a first wall (not shown) in both lower assembly interactive members 622a, 622b and receiving members 616a, 616b.
In operation to move between the intermediate position (
Another illustrative embodiment siderail assembly 36″ is shown in
Rotation assembly 806 includes a handle 808, bracket 809, a pair of springs (not shown), and a pair of release members 810 configured to cooperate with a pair of openings (not shown) in lower siderail assembly 804. Release members 810 are biased into the pair of openings by the pair of springs (not shown). In alternative embodiments an additional pair of openings is provided to interact with release members 810 to lock siderail assembly 36″ in the egress position.
As shown in
Release members 828a, 828b are configured to move between a locked position interacting with an intermediate position opening (not shown) and a locked position interacting with a blocking position opening (not shown). Both intermediate position opening and blocking position opening located through a first wall (not shown) of both lower assembly interactive members 822a, 822b and receiving members 816a, 816b.
In operation to move between the intermediate position (
In operation to move between the intermediate position (
Another illustrative embodiment siderail assembly 36′″ is shown in
Yet another illustrative embodiment siderail assembly 36″″ is shown in
Upper siderail assembly 902 includes, lower assembly receiving members 916a, 916b, upper blocker 911, lower blocker 913, and an upper release assembly 917. Lower blocker includes a first blocker member 918, and a second blocker member 920. Lower assembly 904 includes a height adjustment assembly 906 lower assembly interactive members 922a, 922b configured to be received by respective receiving members 916a, 916b. To rotate upper blocker 911 pull up on upper release assembly 917. A tube (not shown) is welded to upper blocker 911. second blocker member 920 runs through the tube and has a hole (not shown) to engage with 917.
Height adjustment assembly 906 includes a handle 908, bracket 909, a pair of release links 910, and a pair of release members (not shown) configured to cooperate with a pair of openings 928 in lower siderail assembly 904. Receiving member 916a includes an opening (not shown). This allows release members to interact with one of openings 928 and the opening in receiving member 916a. Release links 910 are coupled to handle 908 by a pair of link couplers 930 and release links 910 pivot about pivot pins 932. Release assembly 906 is biased in the rest position with release members locked in one of openings 928 in lower siderail assembly 904.
In operation, to move between the intermediate position (
Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope and spirit of the present invention.
This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/659,221, filed Mar. 7, 2005, titled SIDERAIL FOR A HOSPITAL BED to Hakamiun et al., the disclosure of which is expressly incorporated by reference herein. This application relates to U.S. Provisional Patent Application Ser. No. 60/598,817, titled Mattress Assembly, to Chambers et al., U.S. Provisional Patent Application entitled “Footboard for a Hospital Bed” (60/659368), filed concurrently herewith, and U.S. Utility Application entitled “Hospital Bed” (60/362252), and U.S. Utility Application entitled “Support Surface System” (Ser. No. 11/073795), filed concurrently herewith, the disclosures of which are expressly incorporated by reference herein. Additionally, this application relates to U.S. patent application Ser. No. 10/890,357, filed on Jul. 13, 2004, which is a continuation application of U.S. application Ser. No. 10/254,343, filed Sep. 25, 2002, now U.S. Pat. No. 6,760,939, which is a divisional application of U.S. application Ser. No. 09/946,886, filed on Sep. 5, 2001, now U.S. Pat. No. 6,467,113, which is a continuation application of U.S. application Ser. No. 09/465,872, filed on Dec. 16, 1999, now U.S. Pat. No. 6,295,675, which is a divisional application of U.S. application Ser. No. 08/917,145 filed on Aug. 25, 1997, now U.S. Pat. No. 6,021,533, all of which are expressly incorporated by reference herein.
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