JPS62155851A - Hoist for patient - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hoist using a lifting sling from which a patient is suspended during elevation. More particularly, the present invention relates to a hoist having a sling hanger including spaced apart sling attachments and mounted on the outer end of the hoist's lift arm for rotation on a rigid vertical bearing axis.

“Rigid” referring to the vertical bearings
” is specifically defined here to mean that the bearing axis remains nearly perfectly vertical throughout the range of lift motion of the arm.

Rigid perpendicular bearings overcome the drawbacks of a suspended patient moving freely in a swiveling manner. This drawback is common in hoists that do not have the bearings mentioned above and allow the sling hanger to hang freely. Therefore, the rigid reassembly bearing has the effect of providing the psychologically important comfort of safety while transporting a suspended patient on a movable chassis without injuring the patient. .

However, conventional hoists using the above bearings have the following drawbacks. The sling hanger is
It has had the disadvantage of adopting a fixed position on the bearing shaft which limits its applicability with respect to various lift operations. It is clear that this drawback does not result from a simple construction of a hanger with just two spaced suspensions, but from a more complex construction of a hanger in which more than one suspension is provided. For example, it is a bunker with two pairs of spaced apart suspension parts to which a separate sling separating the back and seven seat legs or an equivalent one-piece sling is attached.

In this case, the configuration of the hanger could not be easily adapted to support the patient in the selected position.

According to the invention, a patient hoist comprises a lift arm, a sling hanger support mounted at the outer end of the lift arm and rotating on a rigid vertical bearing axis, and an m-configuration rotating on a horizontal axis with respect to the sling hanger support. It has a sling hanger. The sling hanger has one on one side of the horizontal axis.
There are spaced sling attachments on each side of the horizontal axis for connection of a pair of sling attachments and for connection of another pair of sling attachments on the other side of the horizontal axis.

Preferably the four sling attachments include a first pair of sling attachments spaced apart on one side of the horizontal axis and a second pair of sling attachments spaced apart on the opposite side of the horizontal axis. It is also arranged with a sling attachment part. In this case, the two pairs of attachment parts may be relatively widely spaced apart to connect separate slings or equivalently one-piece slings. However, in a preferred embodiment, one pair of fittings are relatively widely spaced apart for connecting multiple fittings of a one-piece sling, whereas the other pair of fittings are relatively close together. and separated. The configuration of such a hanger is 1
Can be used in body slings. This one-piece sling is connected to a main part for supporting the patient's body and a pair of closely spaced attachment parts so that when in use the end of the leg support part is connected to the body between the patient's thighs. and a leg support portion extending downward from which the leg is suspended.

Means are provided for positioning the hanger at various angular positions, preferably selected about the direct horizontal axis. Such means are operative to permit adjustment of the position of the hanger within its full range of angular movement and to provide a frictional damping force for movement of the hanger about the water/Y axis. Alternatively, the means for positioning the hanger may hold the hanger in two (or more) alternative positions corresponding respectively to the supine and sitting positions of the suspended patient in use. Or it can be placed. Manual spring loaded fasteners are provided for alternative positioning of such hangers.

By being able to use the hoist to move the hanger to alternative angular positions, the present invention allows the position of a suspended patient to be changed without adjusting the sling being used or attaching the sling to the hanger. . For example, the patient may be lifted from the bed in one angular position on the hanger, and the hanger may be rotated about the above-water axis to an alternative angle that positions the patient in a near-straight position for transporting the patient to a chair or toilet. can.

The horizontal pivot axis of the sling hanger is preferably arranged below a vertical bearing providing said rigid vertical axis such that the hanger is suspended downwardly relative to the vertical bearing. The two bearing axes of the hanger, which are perpendicular to the shaft, intersect each other. Hoist lifting means:
Although operative to raise or lower an independently translating lift arm, in a preferred arrangement the arm is parallelogram-shaped and pivotably mounted on an upright column or support structure of the hoist.

The single-configuration hanger preferably includes a hand grip which is grasped by a person while the patient is suspended in an attached sling and which is used as a lever to rotate the hanger on a horizontal pivot axis. A central member is provided at one end of the hanger for mounting. The center member is 1 at the other end.
A pair of spaced attachments may be rigidly fixed to the two arms at the ends or may be integrally constructed.

When the handle has two pairs of relatively widely spaced attachment portions, one pair of attachment portions is provided at the end of the sight arm projecting from a midpoint in the length of the central member. However, if the second pair of attachments are relatively closely spaced, then they are provided on the central member itself.

The attachment portion may be in the form of a hook used for hanging a chain or cord. However, in a preferred embodiment it may be a headed stud engaged by a sling attachment in the form of a keyhole plate.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In FIG. 1, the hoist according to this embodiment comprises a movable chassis 1, which is provided with casters 2 and supports a straight Xγ column 3 at its back. The lift arm 4 supported by the column 3 is raised or lowered by a lift mechanism comprising a screw and a nut housed in the column 3, and this movement is controlled by the top handle 5. will be accomplished. The nut of the lifting mechanism is connected to the arm 4 via a pivotable support 6. The arm 4 is of NV-row quadrilateral shape with a plurality of parallel links (one link enclosed within the other) pivotably mounted on the column 3. As a result, the end 7 of the arm 4 always remains horizontal even when the arm 4 is raised or lowered by a lifting mechanism operating under the control of the handle 5. At the end 7 of the arm, a hanger support bearing 8 provides a rigid vertical bearing link V, an axis that remains vertical as the arm 4 pivots through its full range of lifting motion.

FIG. 1 shows a sling hanger 10 fitted with an integral sling 11 from which a patient I is suspended. The hanger 10 has a single tubular metal structure and is rotatably supported from the arm 4 via the slit hanger support 12 so as to be rotatable about a horizontal axis H with respect to the slit hanger support I2.

The hanger support 12 is a hanger! 0 rotates with the hanger support 12 on a rigid vertical axis V.
established in Moreover, the hanger supports 12 are individually rotated by water "P@H. As is clear from the figure, the hanger supports 12
0 is suspended downwardly relative to the vertical bearing 8.

The hanger 10 comprises a central member 13 provided with a molded hand clip 14 at its outer end. This hand clip 14 is configured so that it can be comfortably hung by the operator, and the horizontal axis H while the patient is suspended.
used as a lever to change the angular position of the hanger. Another component of the hanger 10 is a V-shaped member welded to the inner end of the center member 13. This member consists of a side rim 15.16.
16 includes branched inner members 15a, 16a and straight parallel outer members +5b, +6b, respectively. The sling hanger support 12 is each divided into branch limbs 17.18, which in each case connect to the rim 15.1 of the hanger lO via a pivot bearing 19°20.
Connected to 6.

FIG. 3 is a diagram showing the structure of the rotary bearing 19. The rim 17 terminates in a circular boss +7a and a horizontally stepped stud 21, and the outer smallest diameter portion of the stud 21 is threaded for engagement with a self-locking nut 23. . The inner, largest diameter part of the stud 21 supports a bearing sleeve 24 so that a web 25 welded to the hangarim I6 can pivot. web 25
is clamped between two annular friction plates 26 and 27 by a clamp plate 28 provided on an intermediate portion 29 of the stud 21 having a square cross section. The friction plates 26 and 27 apply frictional force to the hanger IO to move the arrow 9 in FIG.
It serves as a positioning step that allows the position angle of the hanger to be adjusted about the horizontal axis H over a range of movement indicated by .

The tightening force of Pt rub is like Belleville (lie Iv i l
Ic) Applied to the clamping plate 28 by the nut 23 via the washer 30. Therefore, while the braking angle by )85 friction can be easily adjusted, it can also be adjusted by 11η.

Rotating bearing 20 provides frictional braking to hanger 10! jI can't. A stepped plate 31 fixed to the circular post 18a by bolts 12 at the end of the rim 18 supports a bearing sleeve 33 so that the web 14 connected to the hangar rim 15 can rotate freely. A thrust bearing ring 35 is disposed between the plate 31 and the web 34, and a thrust bearing ring 36 is disposed between the outside of the web 34 and the post 18a.

At the outer ends of the rims 15 and 16 of the hanger lO are relatively widely spaced studs 37,38 or sling attachments with outwardly facing heads. The hanger 10 has relatively closely spaced sling attachments located on the opposite side of the horizontal axis H from said attachments, which are also studs 39, 40 with outwardly directed heads. . Studs: l19.40 are fixed on both sides of the central member 13. Stud 37. :18°:l 9 , 40 is designed to connect to a plate-like sling attachment part with a keyhole 41 of the hanger 10 as shown in FIGS. 1 and 2. The hanger shown in these figures has a first pair of relatively widely spaced sling attachments (studs 37.
38) and a second pair of relatively closely spaced sling attachment portions (studs 39.40), and is designed for use with a one-piece sling of the shape shown in Figure 1. Ru.

Such a sling 11 has studs 3"l, 3 at the shoulder.
A main part 11a connected to B and supporting the patient's body; A leg support part 11b from which a leg is hung is provided.

The hanger according to the second embodiment shown in FIG. Equipped with.

In this case, the hanger support 51 is a Y-shaped (yoke-shaped) connecting pipe, and supports the hanger 50 via a pivot pin 52 extending between the two river rims 53 of the yoke 51. In this way, the rotation pin 52 forms a horizontal rotation axis H,
In this configuration, the mutually perpendicular bearing axes V, H are connected to a sling hanger 50 suspended from the vertical bearing 8.
intersect each other at their central longitudinal axes.

The central member 54 of the hanger 50 is a metal tube with a square cross section and has an enlarged intermediate hair ring portion 54a through which the pivot pin 52 passes. Two pairs of arms 55.56 and 57.58 project laterally from central member 54.

Arm 55.56 has +14 rotation than arm 57.58.
b Located closer to H, these arms 55,56 are a single tubular member welded to one end of the central member 54. The other arm 57,58 is the central member 54.
are separate tubular members welded to each side of the

The remaining arms 55, 56, 57, 58 are of similar shape, bent away from axis H, and have sling attachment hooks 59, 60, 61, 62 at their ends, respectively.

Separate type slings that separate the back and sea 67 legs each have two pairs of spaced hooks 59, 60° 61.6
Attached to 2. Or an equivalent one-piece sling with 4
Can be attached to two top hooks.

Although such a sling is not shown, it has a generally well-known shape. The central member 54 terminates spaced apart from the arms 55.56 and is provided with a handgrip 63 molded for the same purpose as the handgrip 14 previously described.

Hanger 50 is selectively placed in either angular position within the range of movement as indicated by arrow 70 by manual spring-loading means. Such means has a fastening member 64 protruding from the side surface of the center member 54, and a detint notch (claw portion) 6 formed on the yoke rim 53.
5. The fastening member 64 slides guided by a guide slot 66 provided in the central member 54. Further, the fastening member 64 is a release portion provided at the tip of the center member 54 for finger operation.

It is coupled to one end of a working rod 67 that is connected to a member 68 . The spring 69 is attached to the rod 67 in the direction in which the fastener engages.
energize.

In each case of item F, a pair of attachment parts 37 for supporting the sling used at the 1: end or head end of the suspended patient.
．． 38 or 59.60 and another pair of mounting parts: l 9
, 40 or 61.62 are arranged so as to obtain a substantially balanced state with respect to the water-to-axis H. The composition of the sling is
It is desirable that the axis H be close to the patient's center of gravity, but preferably slightly above the center of gravity in order to provide a stable suspended state. This allows the patient's attitude to be changed relatively easily by rotationally moving the hanger 10 or 50 on axis H. Then, place the hanger 1 in the position adjusted according to the configuration shown in Figures 1 to 4.
The frictional braking angle required to hold zero can be adjusted by a small force applied to the handgrip 14.

Tests have shown that for the one-piece sling shown in FIG. 1, a range of four sling sizes can suitably position patients weighing up to 159 kgm with respect to the horizontal axis H.

Compared to conventional sling hangers with attachments arranged in a straight line laterally to the eastward bearing axis V, the location of the sling attachment with the hanger according to the invention allows the hoist to extend the working range of the hoist. For example, with the hoist arm in the fully lowered position, the hanger is tilted vertically on axis H to scoop the supine patient off the floor; It is rotated until it is. In this way, the pivot movement of the hanger brings the first lifted patient into a sitting position.

The sling 11 as shown in FIG. 1 includes a head support portion 11c as a component. The illustrated hanger provides a removable head support (not shown) when used with an integral sling that does not support the upper part of the patient's shoulders or when used with a separate mid-leg sling. It's okay to be.

This head support is removable, and when in use, the side rim 15
．． 16 or side arm 55.5δ. The head support is particularly useful if a hoist is used on a patient whose head will rise and fall if not supported by a caregiver who is relieved of other duties.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the hoist according to the first embodiment, FIG. 2 is an enlarged view of a preferred sling hanger, and FIGS. 3 and 4 are sectional views taken along the lines ■-■ and ■-■ in FIG. 2, respectively. , FIG. 5 is a perspective view of the hanger according to the second embodiment. 1. Movable chassis, 2...casters, 3...
・Upright column, 4...Lift arm, 8...Overlapping hair ring, 10-...Sling hanger, I 1-...Sling, 1
2...Sling hanger support, 14.6:l-...Hand grip, 37,:18.39,40,59,60,61.62-
--Sling attachment part.

Claims (11)

[Claims] (1) In a patient hoist comprising a lift arm and a sling hanger pivoting about a rigid vertical bearing axis at the outer end of the lift arm, the sling hanger support ( 1
2, 51) and a sling hanger (10, 50) of a unitary configuration pivoting about a horizontal axis (H) with respect to a sling hanger support (12, 51), said sling hanger (10, 50) for the connection of a first pair of sling fittings on one side of the horizontal shaft (H) and for the connection of a second pair of sling fittings on the opposite side of said side of the horizontal shaft (H). , a patient hoist characterized in that it has sling attachment parts (37, 38, 39, 40 or 59, 60, 61, 62) spaced apart on each side of the horizontal axis (H). (2) There are four sling attachment parts, and these sling attachment parts are a first pair of sling attachment parts (37, 38 or 59) arranged spaced apart on one side of the horizontal axis (H).
, 60), and a second pair of sling attachment parts (39,
40 or 61, 62). 40 or 61, 62). (3) The two pairs of attachment parts (59, 60 and 61, 62) are relatively widely spaced apart for connection of a separate type sling that separates the back and seat/legs, which is equivalent to a one-piece sling. A patient hoist according to claim 2, characterized in that: (4) A one-piece sling (11 ) are relatively widely separated for connection with the shoulder attachment portions of the sling, and the other pair of attachment portions (39, 40) are closely spaced apart for connection with the leg support portions (11b) of the sling. A patient hoist according to claim 2, characterized in that: (5) Means (26, 27) for arranging the hanger (10 or 50) at a selected position angle with respect to the horizontal axis (H).
or 64, 65). (6) means (26, 2) for arranging the hanger (10);
7) is characterized in that the position of the hanger (10) is adjustable within the entire range of angular movement and provides a frictional braking force on the movement of the hanger about the horizontal axis (H). Patient hoist as described in section. (7) Said horizontal axis (H) is of a vertical bearing (8) providing said rigid vertical axis (V) such that the hanger (10 or 50) is suspended downwardly relative to the vertical bearing (8). The patient hoist according to any of the preceding items, characterized in that it is arranged downward. (8) A monolithic hanger (10 or 50) having a central member (13 or 54) extending from one end to provide a handgrip (14 or 63); Patient hoist according to any of the preceding clauses, characterized in that ) is grasped by a nurse and used as a lever for rotating the hanger (10 or 50) on said horizontal axis (H). (9) The central member (13, 54) has one end at the other end.
Pairs of spaced sling attachments (37, 38 or 59, 6
two arms (15, 16 or 55) with a
. (10) A pair of sling attachment parts (6
1, 62) is located at an intermediate position of the length of the center member (
A patient hoist according to any one of claims 3 to 9, characterized in that the patient hoist is an end of a side arm (57, 58) projecting from the patient hoist (54). (11) The patient hoist according to any one of claims 4 to 9, characterized in that the pair of attachment parts (39, 40) are provided on the central member (13) itself.