WO2010131260A2

WO2010131260A2 - Hospital bed with sliding back arrangement

Info

Publication number: WO2010131260A2
Application number: PCT/IN2010/000258
Authority: WO
Inventors: Bhaskar Vitthal Patwardhan
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-27
Filing date: 2010-04-26
Publication date: 2010-11-18
Anticipated expiration: 2011-10-27
Also published as: WO2010131260A3

Abstract

The present invention relates to a hospital bed having back portion, seat portion and legs portion. The novelty of the invention lies in the fact that hospital bed is provided with unique sliding back arrangement. The sliding back arrangement of present invention comprises: one steel frame with cushion on which the upper body of the patient actually rests; a cable that pulls this sliding back arrangement upward when the back portion of the hospital bed is moved in a chair position and one or more springs that pulls this sliding back arrangement to its original position on the bed so as to maintain the position of the patient on the bed. This newly invented bed prevents the sliding forward of the patient on a bed so as to maintain his position on the bed.

Description

HOSPITAL BED WITH SLIDING BACK ARRANGEMENT

FILED OF THE INVENTION

The present invention relates to the hospital bed. More particularly it relates to a hospital bed having adjustable back arrangement.

PRIOR ART OF THE INVENTION

A hospital bed is a specialized bed which has been designed to meet the needs of the hospital environment. The most distinctive feature of a hospital bed is that it is fully adjustable. Hospital beds typically can be adjusted in a wide range of ways to support a patient's back, make it easier to perform procedures, and for various other purposes. A basic hospital bed may be split into two sections which can be raised in various ways, and more sophisticated beds have additional sections for the purpose of making very precise adjustments to meet the specific needs of a patient.

There are various patents available on the hospital beds. Some of them are discussed hereinafter. UK patent GB728765 discloses a back rest for beds comprising a frame having horizontal tubes connected by vertical tubes the outer of which telescope on rods hinged to the head end of the bed, is locked in adjusted position by hand- actuated means, lodged within tube. In one arrangement, a locking bar contained in tube is partially turned by handle which causes matched grooving on the ends of bar to become asymmetric to rods to give a frictional binding between bar and rods. Unlocking is by reversal of handle. Another arrangement is to have bar in two parts a separated by a compression spring, for pressing their ends against rods. Retraction of elements is by bringing the triggers together. In place of spring, a cam or a coned screw engaging a divided nut may be used. Friction pads, e.g. of hard rubber, may be used at the ends of elements, or the nose end of each element engages recesses or holes along rod. Japanese patent JP2001061599 discloses a chair is formed comprising a frame, a seat cushion and a back cushion which can be freely assembled to one another. For the seat part of the frame, an inner pipe is slidable relative to an outer pipe to allow adjustment of the depth of the seat part. The inner pipe is pushed in to reduce the depth to allow the use of a chair. With the inner pipe drawn out to increase the depth, two chairs are arranged in the direction of depth to provide a bed or sofa.

Canadian patent CA1308866 discloses Hospital Bed Convertible to Chair a bed that is convertible to a chair. The bed has a retracting frame mounted on a fixed frame. A patient support is formed by serially-connected head, seat, thigh, calf and foot panels, with the seat panel being fixed to the retracting frame. Movement of the retracting frame toward the foot end of the bed causes the head panel to rise and the leg panel to drop, thereby creating a chair.

US patent application US2005144724 discloses the universal hospital bed designed for nursing the immobile patients with additional bathing equipment" belongs to the category of the health equipment, intended for the health institutions, gerontology institutions and family households. The essence of the invention is in its constructive solution of the three-part bed, which using the mechanism for electrical and mechanical adjustment of the angles of the slope of the mobile parts of bed, could be converted into the form of (arm) chair. The belt holders and belts for fastening the patients are installed on the back part of the bed, and the antidecubitus mattress is placed along the whole bed, used as preventive protection of the patients against decubitus, or if patient already has it, for healing of the wounds. On the middle sitting part of the bed-mattress, part of the mattress is cut and the basic insert is made of it, which if necessary, could be replaced with WC insert. Additional special equipment for bathing the immobile patients solves the problem of bathing the patients on the bed itself.

Another US patent 4862529 discloses a bed that is convertible to a chair. The bed has a retracting frame mounted on a fixed frame. A patient support is formed by serially-connected head, seat, thigh, calf and foot panels, with the seat panel being fixed to the retracting frame. Movement of the retracting frame toward the foot end of the bed causes the head panel to rise and the leg panel to drop, thereby creating a chair.

It is a common fact that all the patients on fowler (back straitening) bed slide down with the operation of the backrest. They have to be pulled up every day and that is strenuous for nurse or family members and painful for the patient. This forward sliding of the patient happens because when back is strained the patient is pushed forward and as there is no sliding movement between the patient and the back frame.

In available hospital bed there is no arrangement to this pushing. The patient is pushed forward and so slides forwards his feet. As a result he has to be pulled up when the back of the bed goes into bed position as it does not pull the patient up but goes down to bed position so the patient remains in the pushed forward position. In available hospital bed nothing is provided to solve this problem.

Hence there is a need to provide a hospital bed which will take care of above mentioned problems.

OBJECTIVE OF THE INVENTION :

It is an object of the invention to provide a hospital bed which overcomes the problems associated with the hospital beds available in prior art.

It is another object of the invention to provide a hospital bed which stops pushing the patient in forward and thereby save the energy of nurse and make their life easy.

Another object of the invention to provide a hospital bed which provides comfort to the patient and patient need not have to go through the painful procedure. Yet another object of the invention to provide a hospital bed which have simplified structure.

Yet another object of the invention to provide a hospital bed which can be produced in inexpensive manner.

SUMMARY OF THE INVENTION :

Accordingly to achieve the aforesaid objects present invention provides a hospital bed with sliding back arrangement comprising :

a first frame having back portion, seat portion and legs portion, said back portion supports upper body of the patient, said seat portion supports seat region of the body of the patient and legs portion supports legs region of the patient;

a second frame being movably fitted to said first frame within back portion, one side of said second frame is connected at one end of the back portion of the first frame which end is nearer to seat portion of said first frame;

characterized in that

at least two sliding rods being connected to said second frame;

a sliding body being provided to support upper body portion of the patient and slidable over said sliding rods, said sliding body having griping means which helps patient to keep his upper body portion intact with said sliding body;

a cable one end of which being connected to a first frame and other to upper portion of said sliding body through pulley; at least one spring one end of which being connected to said first frame and other to a lower portion of said sliding body;

wherein when said second frame is moved in an upright position to convert said bed from bed position to chair position said cable pulls sliding body upward and as the patient rest on said sliding body using griping means, he maintains his position on the bed and thereby prevented from being pushed forward while during lowering down of said second frame for converting said bed from chair position to bed position said spring pulls said sliding body to original position and thereby patient maintains his original position on the bed.

BRIEF DESCRIPTION OF THE DRAWINGS :

Figure 1 : Shows the hospital bed in accordance to present invention with its back in almost a bed position. Figure 2 : Shows the hospital bed in accordance to present invention with its back in an easy chair position. Figure 3 : Shows the hospital bed in accordance to present invention with its back in almost a chair position.

DETAILED DESCRIPTION OF THE INVENTION :

The above, and the other objects, features & advantages of invention will become apparent from following description read in conjunction with the accompanying drawings.

Referring to figure 1 showing a hospital bed (1) with its back in almost a bed position. As shown in figure 1, hospital bed (1) of present invention comprises bed frame (2), back portion frame (6) and sliding back (9).

The bed frame (2) is conventionally used bed frame. It is rectangular in shape. It is divided into three portions. First portion is back portion (3) on which upper body of the patient rests. The second portion is seat portion (4) for supporting seat region of the patient and third portion is legs portion for supporting legs region of the patient. All aforesaid portions are covered with cushions. The frame (2) can be made of metals like aluminum, stainless steel, copper, brass or their alloys.

The back portion frame (6) is a rectangular frame and is movably accommodated in back portion (3) of bed frame (2). Back portion frame (6) is connected to bed frame (2) such that it can raised upward to convert bed from bed position to chair position. The back portion frame (6) is connected to bed frame (2) at its one end. This end is nearer to the seat portion (4) of bed frame (2). The two rods (7, 8) are provided on back portion frame (6). There can be more than two numbers of rods. This frame (6) can also be made of metals like aluminum, stainless steel, copper, brass or their alloys.

The sliding back (9) is fitted over back portion frame (6) in such way that it can slide on rods (7, 8). The sliding back (9) is provided with cushion (14) for providing comfort to the patient. Griping means (15) is provided with sliding back (9) for keeping upper body of patient intact with back portion frame (6). A cable (10) is provided for connecting the sliding back (9) to the bed frame (2). It is due to this cable that the sliding back (9) is pulled upward when the back portion frame (6) is moved in upright position. One end of cable (10) is connected to bed frame (2) by means of an anchor (12). The other end of cable is connected to upper portion of sliding back (9) with the help of pulley (11). The spring (13) is attached to sliding back (9) and bed frame (2) for the purpose of bringing sliding back (9) to its original position when back portion frame (6) moved in downward position. There can be more than one spring.

All movements of frame (6) can be done in various ways. It can be done mechanically by mechanical power, electrically by electrical power, hydraulically by hydraulic power and pneumatically by pneumatic power. The newly invented sliding back (9) can be fitted to any hospital bed. When the back portion frame (6) is moved in an upright position, cable (10) pulls the sliding back (9) upwards because its length falls short as the fulcrum of frame (6) and cable attachment point (12) are different. And as the patient rests on this sliding back (9), he maintains his position on the bed and is thus prevented from being pushed forward in this act. Also when the back portion frame (6) is lowered to convert it into bed position, spring (13) pull the sliding back (9) to its original position and thus the patient maintains his original position on the bed.

Figure 2 shows hospital bed (2) with its back portion frame (6) in an easy chair position. The newly invented sliding back (9) is slightly pulled up from its original position. Figure 3 shows hospital bed (2) with its back portion frame (6) in almost chair position. The newly invented sliding back (9) is completely pulled up so as to maintain the position of the patient on the bed.

ADVANTAGES OF THE HOSPITAL BED OF THE PRESENT INVENTION :

i. Due to such hospital bed the patient is prevented from being pushed forward every time the back of the bed is moved in an upright position, ii. It allows patient to maintain his position on the bed and does not have to be pulled up every time, iii. It utilizes the simple mechanism which provides sliding movement between the patient and frame of the hospital bed. iv. It saves lot of trouble for the nurse or family member and lot of pain for the patient due to its simplified structure.

INDUSTRIAL APPLICATION :

The hospital bed with sliding back arrangement of present invention can be utilized in medical field. It is useful in hospitals. Its sliding back arrangement prevents the patient from being pushed forward every time the back of the bed is moved in an upright position and helps the patient to maintain his position on hospital bed. It is useful for aged, permanently or temporary disabled spastic paralyzed or patients whose movements are restricted for some other reason. It is very useful in hospitals as well as home to private nurses and the family members who nurse a bed-ridden patient.

Although the present invention has been described with respect to specific, preferred embodiments, various changes and modifications may be suggested to one skilled in the art, and it is intended that the present invention encompass such changes and modifications as fall within the scope of the appended claims.

Claims

I CLAIM :

1. Hospital bed with sliding back arrangement comprising:

characterized in that

at least two sliding rods being connected to said second frame;

a cable one end of which being connected to a first frame and other to upper portion of said sliding body through pulley;

at least one spring one end of which being connected to said first frame and other to a lower portion of said sliding body;

2. Hospital bed with sliding back arrangement as claimed in claim 1 wherein said second frame is moved by mechanical means.

3. Hospital bed with sliding back arrangement as claimed in claim 1 wherein said second frame is moved by electrical means.

4. Hospital bed with sliding back arrangement as claimed in claim 1 wherein said second frame is moved by hydraulic means.

5. Hospital bed with sliding back arrangement as claimed in claim 1 wherein said second frame is moved by pneumatic means.

6. Hospital bed with sliding back arrangement as claimed in claim 1 wherein said second frame, seat portion and leg portion are covered by cushion.

7. Hospital bed with sliding back arrangement such as herein before described and illustrated with reference to accompanying drawings.