JP2022187055A - Drip stand coupling device - Google Patents

Abstract

To provide a drip stand coupling device with a novel structure, which has improved stability of a coupling state of a patient loading device and a drip stand and is capable of coping with the vertically relative displacement and selection of a coupling position of the patient loading device and the drip stand for example.SOLUTION: A drip stand coupling device 10 comprises: a first fitting part 12 fitted to a patient loading device 80 detachably; a second fitting part 14 fitted to a drip stand 82 detachably; and a coupling body 16 which couples the first fitting part 12 and the second fitting part 14, to couple the drip stand 82 to the patient loading device 80. The coupling body 16 is provided with a vertical movement mechanism 32 which allows the first fitting part 12 and the second fitting part 14 to vertically relatively move while keeping the horizontal coupling state of the coupling body 16 to the first fitting part 12 and the second fitting part 14.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a drip stand connection device for connecting a patient-mounted device such as a stretcher and an drip stand.

When a patient is undergoing medical treatment such as an infusion, the patient-mounted device such as a stretcher is sometimes moved together with the patient-mounted device. Therefore, it is difficult to operate the patient-mounted device by holding the drip stand with one hand.

Therefore, for example, in Japanese Patent Application Laid-Open No. 2019-198446 (Patent Document 1) and Japanese Patent Application Publication No. 2014-068908 (Patent Document 2), the drip table is connected to the patient-mounted device by connecting the patient-mounted device and the drip table. An infusion table connection device has been proposed that follows and moves. By using the drip table connection device, medical staff and patients do not have to hold the drip table by hand, and the operation of the patient-mounted apparatus becomes easier.

JP 2019-198446 A JP 2014-068908 A

By the way, the connection device for the drip stand of Patent Document 1 has a structure in which the drip stand is held by a clamp, and the clamp is attached to the drip stand in a state of being fixedly positioned with respect to the drip stand. However, in a case where the patient-mounted device is a stretcher having a lifting function, for example, the drip stand connecting device as disclosed in Patent Document 1 can be used while the drip stand and the patient-mounted device are connected by the drip stand connecting device. If the patient-mounted device is moved up and down, there is a risk that the drip table will be lifted and overturned. In addition, since the degree of freedom of the connection position of the connection device for the drip stand with respect to the drip stand is fixed, for example, when the connection position is limited by mounting a pump control device or the like on the drip stand. In some cases, it was not possible to use the connecting device for the IV stand.

The connection jig of Patent Document 2 is loosely attached to the support of the drip stand by the carabiner-like mounting member. It is also possible to allow the lifting and lowering of the patient-mounted apparatus while remaining connected to the apparatus. However, if the attachment member of the connection jig is loosely attached so as to be easily displaced with respect to the drip table as in Patent Document 2, the connection between the connection jig and the drip table will not be stable, and the drip table will not be connected. Falling or the like may easily occur. In addition, when the patient-mounted apparatus is moved, the mounting member may be displaced unnecessarily with respect to the drip table, and the mounting member may hit the drip table, causing problems such as noise and impact.

The problem to be solved by the present invention is to improve the stability of the connection state between the patient-mounted device and the drip table, and to, for example, select relative vertical displacement and connection position of the patient-mounted device and the drip table. To provide a drip table connection device with a new structure that can be adapted to the situation.

Hereinafter, preferred embodiments for understanding the present invention will be described. can be recognized and employed as independently as possible, and can also be employed in combination with any of the components described in other aspects as appropriate. Accordingly, the present invention can be implemented in various alternatives without being limited to the embodiments described below.

A first aspect includes a first attachment portion that is detachably attached to a patient-mounted device such as a stretcher, a second attachment portion that is detachably attached to an IV stand, and the first attachment portion and the second attachment portion. and a connection body connecting the attachment portion of the drip table to the patient-mounted device, wherein the connection body includes the first attachment portion and a vertical movement that allows relative movement in the vertical direction of the first mounting portion and the second mounting portion while maintaining the connection state in the horizontal direction of the connecting body with respect to the second mounting portion A mechanism is provided.

According to the drip tray connecting device constructed according to this aspect, the first mounting portion attached to the patient-mounted device and the second mounting portion attached to the drip tray are moved by the vertical movement mechanism to the connecting body portion. Relative movement in the vertical direction is allowed. Therefore, for example, when the patient-mounted apparatus has an elevating function, the mounting position of the first mounting section to the patient-mounting apparatus and the mounting position of the second mounting section to the drip table are arranged vertically. , the displacement of the mounting position can be followed by the relative movement of the first mounting portion and the second mounting portion. In this way, by providing the vertical movement mechanism, for example, when the patient-mounted device has a lifting function, or when the patient-mounted device and the drip table move over a step at different timings, etc. In addition, relative vertical displacement of the patient-mounted device and the drip table can be permitted while the patient-mounted device and the drip table are connected by the drip table connecting device. In addition, since the relative height position between the first mounting portion and the second mounting portion can be set arbitrarily or selectively, for example, a control device, a monitor device, etc. are attached to the drip table. Therefore, even if the parts that can be connected are limited, it is possible to connect the connecting main body to a position that can be connected according to the situation.

Since the vertical movement mechanism is provided on the connecting main body, the first mounting portion and the second mounting portion can be fixed to the patient mounting device and the drip table, respectively. Therefore, the drip table connecting device can be firmly attached to the patient-mounted device and the drip table, preventing rattling at the mounting portion, and connecting the drip table to the patient-mounted device in a stable manner.

A second aspect is the drip table connection device according to the first aspect, wherein the vertical movement mechanism is provided with a fall prevention mechanism that exerts a restraining force against downward movement of the connection main body due to gravity. It is what is done.

According to the drip table connection device constructed according to this aspect, it is possible to prevent the connection main body from falling unintentionally due to the provision of the vertical movement mechanism.

According to a third aspect, in the drip table connection device according to the second aspect, the fall prevention mechanism includes biasing means that exerts an upward biasing force on the connection main body.

According to the drip table connecting device constructed according to this mode, the biasing force of the biasing means can prevent the connecting main body from falling unintentionally.

A fourth aspect is that in the drip table connection device described in the third aspect, a constant force spring is used as the biasing means.

According to the drip table connection device constructed according to this aspect, the constant force spring is used as the biasing means, so that the vertical movement mechanism causes the first mounting portion and the second mounting portion to move relative to each other in the vertical direction. The external force (operating force, etc.) required for this can be made substantially constant regardless of the relative positions in the vertical direction of the first mounting portion and the second mounting portion.

A fifth aspect is the drip table connection device according to any one of the first to fourth aspects, wherein the drip table is formed by the connecting main body portion, the first mounting portion, and the second mounting portion. and the patient-mounted apparatus are provided at least at one location with a rotation permitting portion that permits rotation about a vertical axis.

According to the drip tray connection device constructed according to this aspect, relative movement between the patient mounting device and the drip tray in the horizontal direction can be permitted by rotating the rotation permitting portion about the vertical axis.

A sixth aspect is the drip table connection device according to any one of the first to fifth aspects, wherein the connection main body portion includes at least one of a lengthwise expansion/contraction deformation allowance portion and a curved deformation allowance portion. is provided with a deformation permitting portion.

According to the drip table connection device constructed according to this mode, relative movement between the patient mounting device and the drip tray in the horizontal direction can be permitted by deformation of the deformation permitting portion.

A seventh aspect is the drip table connection device according to any one of the first to sixth aspects, wherein the first attachment portion is a vertically extending attachment hole provided in the patient mounting device. It has an insertion rod that is inserted from above, and a rotation restricting portion that restricts rotation around the insertion rod and positions the first attachment portion with respect to the attachment hole.

According to the drip table connection device constructed according to this aspect, the first attachment portion can be attached to the patient mounting apparatus by a simple operation of inserting the insertion rod into the attachment hole. In addition, since the rotation of the first mounting portion around the insertion rod is restricted, the mounting of the first mounting portion to the patient-mounted device can be stabilized, and the patient-mounted device and the drip table are stabilized. Concatenation can be realized.

An eighth aspect is the drip table connection device according to any one of the first to seventh aspects, wherein the second mounting portion comprises a pair of gripping pieces that can be opened and closed around a vertical axis; A locking lock is provided to hold the pair of gripping pieces in a closed state, and the support of the drip table inserted from the side while the pair of gripping pieces are open is engaged with the pair of gripping pieces. It is designed to be gripped by holding it in the closed state with a stop lock.

According to the drip stand connecting device constructed according to this aspect, the second mounting portion can be easily attached to the drip stand by holding the support of the drip stand between the pair of gripping pieces that can be opened and closed. can. In addition, in a state in which the support of the drip stand is inserted from the side between the pair of gripping pieces, the pair of gripping pieces are held in a closed state by a locking lock, so that the support of the dripping table is positioned between the pair of gripping pieces. It is possible to stably attach the second attachment part to the drip stand by preventing it from slipping out.

A ninth aspect is the drip table connection device according to any one of the first to eighth aspects, wherein the first attachment portion and the second attachment portion are attached to the patient-mounted device and the drip table. On the other hand, both are fixedly attached in the vertical direction.

According to the drip table connecting device constructed according to this mode, for example, the first mounting portion and the second mounting portion move up and down unintentionally with respect to the patient mounting device and the drip table due to the action of an external force. This avoids problems such as the first attachment portion and the second attachment portion coming off the patient-mounted device or the drip stand, or making noise due to being hit. In addition, when the patient-mounted device and the drip table are displaced relative to each other in the vertical direction, force is effectively transmitted from the first mounting portion and the second mounting portion to the vertical movement mechanism. The vertical movement mechanism can allow relative displacement in the vertical direction while maintaining the connection state in the horizontal direction between the mounting device and the drip table.

A tenth aspect is the drip table connection device according to any one of the first, second, third, fourth, sixth, seventh, eighth, and ninth aspects, wherein Both the described rotation permitting portion and the vertical movement mechanism are provided at a position closer to the first mounting portion than to the second mounting portion.

According to the drip table connection device constructed according to this aspect, the second mounting portion side attached to the drip table can be miniaturized, and the connection portion of the drip table connection device to the drip table can be used for treatment or treatment. It does not easily get in the way during operations such as transportation.

ADVANTAGE OF THE INVENTION According to this invention, in a drip stand connection apparatus, the stability of the connection state of a patient mounting apparatus and a drip stand can be improved. In addition, the drip table connection device of the present invention can also be applied to, for example, a patient-mounted apparatus that moves up and down, and can make it possible to move the patient-mounted apparatus up and down while maintaining a stable connection state of the drip table. . In addition, the drip table connecting device of the present invention can flexibly correspond to the mounting position of the patient-mounted device and the drip table in the vertical direction while ensuring stable connection performance between the patient-mounted device and the drip table. Become.

FIG. 2 is a front view showing the drip table connecting device as the first embodiment of the present invention; Left side view of the drip table connection device shown in FIG. III-III sectional view of FIG. IV-IV cross-sectional view of FIG. VV sectional view of FIG. VI-VI sectional view of FIG. FIG. 2 is a front view of the drip table connection device shown in FIG. 1, showing a state in which the first attachment portion has moved upward relative to the second attachment portion; FIG. 2 is a plan view showing a state in which the drip table connection device of FIG. 1 is mounted on a stretcher and an drip table; FIG. 9 is a rear view of the state where the drip table connection device shown in FIG. 8 is attached to the stretcher and the drip table. FIG. 9 is a left side view of the state where the drip table connection device shown in FIG. 8 is attached to the stretcher and the drip table. FIG. 4 is a cross-sectional view showing the main part of an IV table connection device as another embodiment of the present invention in a state of being attached to a stretcher;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 6 show a drip table connection device 10 as a first embodiment of the present invention. The drip table connection device 10 is a device that is interposed between a stretcher 80 described later and an drip table 82 described later to connect the stretcher 80 and the drip table 82 to each other. The drip table connection device 10 has a structure in which a first attachment portion 12 attached to the stretcher 80 and a second attachment portion 14 attached to the drip table 82 are connected by a connection main body portion 16 . In the following description, the up-down direction basically means the up-down direction in FIG.

The first mounting portion 12 has an insertion rod 18 extending vertically. The insertion rod 18 has a small-diameter columnar shape extending linearly in the vertical direction, and can be inserted into a mounting hole 94 provided in a stretcher 80, which will be described later.

A rotation limiter 20 is fixed to the upper end of the insertion rod 18 . The rotation restricting portion 20 is a groove-shaped metal fitting having an upside-down, substantially U-shaped cross section, and the upper bottom wall portion is fixed to the upper end portion of the insertion rod 18 by means of adhesion, welding, or the like. The rotation restricting portion 20 is arranged such that a pair of side wall portions apart from the upper bottom wall portion face the insertion rod 18 in the radial direction and are separated from each other.

The second mounting portion 14 is made of synthetic resin or metal, and includes a first gripping piece 22 and a second gripping piece 24 for gripping a post 92 of a drip table 82, which will be described later.

The first gripping piece 22 and the second gripping piece 24 are hinged on one side, and are connected so as to be openable and closable around the vertical axis. In addition, the second mounting portion 14 closes the pair of gripping pieces 22 and 24 on the other openable and closable side opposite to the one side where the first gripping piece 22 and the second gripping piece 24 are hinged. It has a locking lock 26 that holds it in place. As shown in FIG. 4, the locking lock 26 is configured such that a locking metal fitting 28 pivotally supported by a pin on the second gripping piece 24 is engaged with a receiving portion 30 provided on the first gripping piece 22 . By being stopped, the pair of gripping pieces 22 and 24 are held in a closed state. Further, by operating the locking lock 26 exposed to the outside of the second gripping piece 24 to swing and displace it, the pair of gripping pieces 22 and 24 are closed by locking the locking lock 26 to the receiving portion 30 . The pair of gripping pieces 22 and 24 can be opened by releasing the lock in the state.

The connecting body portion 16 is provided between the first mounting portion 12 and the second mounting portion 14, one end of which is connected to the rotation restricting portion 20 of the first mounting portion 12, and the other end of which is connected to It is connected to the first grip piece 22 of the second mounting portion 14 .

A connecting portion of the connecting main body portion 16 to the first mounting portion 12 is configured by a vertical movement mechanism 32 . The vertical movement mechanism 32 has a housing 34 connected to the first mounting portion 12 . The housing 34 has a hollow rectangular box shape and is elongated in the vertical direction. The rotation restricting portion 20 of the first mounting portion 12 is fixed to the outer peripheral surface of the upper portion of the housing 34 , and the first mounting portion 12 is connected to the side of the housing 34 .

Inside the housing 34, a pair of vertically extending guide rails 36, 36 are provided in parallel and spaced apart from each other. The guide rails 36 are groove-shaped members extending with a concave cross-section, and a pair of guide rails 36 fixed to the inner surfaces of the walls facing each other of the housing 34 are arranged so as to face each other.

A movable portion 38 is attached between the guide rails 36 , 36 . The movable portion 38 includes slide portions 42 , 42 that are combined with the guide rails 36 , 36 via a plurality of ball bearings 40 so as to be vertically slidable. The guide rail 36, the slide portion 42, and the ball bearing 40 constitute a vertical linear slide bearing mechanism.

The slide portions 42 , 42 are attached to both ends of the shaft member 44 . The shaft member 44 is a substantially cylindrical member, and both ends in the axial direction are fixedly connected to the slide portions 42 , 42 .

One end of a constant force spring 46 is fixed to the shaft member 44 . The constant force spring 46 is a sheet-like member made of spring steel and wound around the shaft member 44 . The constant force spring 46 has one end fixed to the shaft member 44 and the other end fixed to the housing 34 . In this embodiment, the other end of the constant force spring 46 is fixed to the housing 34 by a bolt connecting the housing 34 and the first mounting portion 12 .

The constant load spring 46 is provided across the movable portion 38 and the housing 34, and the end portion of the constant load spring 46 on the housing 34 side is positioned above the end portion on the movable portion 38 side. , the biasing force based on the elasticity of the constant load spring 46 acts upward on the movable portion 38 . The biasing force based on the elasticity of the constant load spring 46 is set to balance the static load such as gravity acting on the portion from the movable portion 38 to the second mounting portion 14 . Therefore, for example, the urging force of the constant force spring 46 suppresses downward movement (dropping) of the portion from the movable portion 38 to the second mounting portion 14 due to the action of gravity. Thus, in this embodiment, the fall prevention mechanism is configured by the constant force spring 46 as the biasing means.

A connecting fitting 48 is attached to the shaft member 44 . The connecting fitting 48 is a member having a U-shaped cross section, and one of the axial end portions of the shaft member 44 is inserted into circular holes 50, 50 which are formed through opposite end portions. , and the shaft member 44 is fixed to the connecting fitting 48 . The connecting metal fitting 48 passes through a pair of slits 52 , 52 (see FIG. 2) provided in the housing 34 , and the central portion of the connecting metal fitting 48 protrudes from the housing 34 . The slits 52, 52 are provided in the wall portion of the housing 34 on the side opposite to the connection side of the first mounting portion 12, and extend linearly in the vertical direction. Therefore, the connecting fitting 48 protrudes from the housing 34 on the side opposite to the first mounting portion 12 .

The connecting fitting 48 is allowed to move vertically along the slits 52 and 52 and stop at any position in the vertical direction with respect to the housing 34 . 1 to the lower end position shown in FIG. 7, the constant force spring 46 is pulled out from the shaft member 44. As shown in FIG. When the connecting fitting 48 moves from the lower end position shown in FIG. 7 toward the upper end position shown in FIG. As a result, a substantially constant urging force from the constant load spring 46 acts on the connecting fitting 48 regardless of its position in the vertical direction. In addition to being able to move, it is possible to stop the connecting fitting 48 at any position in the vertical direction by canceling the input from the outside.

A rotation permitting portion 54 is attached to the connecting fitting 48 . The rotation permitting portion 54 includes a rotation shaft 58 that is fixed to the connecting fitting 48 via a bracket 56 and extends in the vertical direction. The rotary shaft 58 is formed with a plurality of positioning recesses 60 opening on the outer peripheral surface. The positioning recesses 60 are formed at predetermined angles in the circumferential direction of the rotating shaft 58, and in this embodiment, six positioning recesses 60 are formed at intervals of 30°. The rotation permitting portion 54 also includes a sliding portion 62 that is attached to the rotation shaft 58 in an externally inserted state and that is movable in the circumferential direction with respect to the rotation shaft 58 . The sliding portion 62 is integrally provided with an outer cylinder portion 66 of an expandable rod 64 which will be described later, and the outer cylinder portion 66 can swing about the rotation shaft 58 . In the rotation permitting portion 54, the sliding portion 62 may be rotatable to any position in the circumferential direction with respect to the rotation shaft 58, or may be rotatable stepwise in the circumferential direction. may be

A telescopic rod 64 is fixed to the sliding portion 62 of the rotation permitting portion 54 . The telescopic rod 64 has a structure in which the proximal end portion of the inner tubular portion 68 is inserted into the outer tubular portion 66 , and the length in the axial direction can be changed by changing the amount of insertion of the inner tubular portion 68 into the outer tubular portion 66 . is configurable. In short, the expansion/contraction rod 64 constitutes an expansion/contraction permitting portion that allows expansion/contraction deformation in the longitudinal direction by changing the amount of insertion of the inner cylindrical portion 68 into the outer cylindrical portion 66 in the connecting body portion 16 .

A lock screw 70 is provided to pass through the outer cylindrical portion 66. By tightening the lock screw 70 and pressing the tip against the outer peripheral surface of the inner cylindrical portion 68, the outer cylindrical portion 66 and the inner cylindrical portion 68 are separated. Axial positioning is possible. Therefore, the telescopic rod 64 can be continuously changed in length by extending and retracting in the axial direction, and can be maintained at the set length. In this embodiment, the lock screw 70 constitutes an extension restriction mechanism that restricts the length change of the extension rod 64 . By providing a plurality of recesses or through-holes that open to the outer peripheral surface of the inner cylindrical portion 68 and inserting the tip of the lock screw 70 into the recesses or through-holes, the length of the telescopic rod 64 can be changed. It is also possible to configure an expansion/contraction limiting mechanism for limiting. In this case, it is possible to change the length in multiple steps according to the intervals between the recesses or the through holes.

The extensible rod 64 has a guide projection 72 protruding radially inward from the outer cylindrical portion 66 and inserted into a slit-shaped guide hole 74 formed in a part of the inner cylindrical portion 68 in the circumferential direction. As a result, the amount of relative displacement between the outer cylinder portion 66 and the inner cylinder portion 68 in the axial direction is restricted, and relative rotation of the outer cylinder portion 66 and the inner cylinder portion 68 in the circumferential direction is prevented.

The outer cylinder portion 66 is provided with an opening portion 75 closer to the rotation permitting portion 54 than the inner cylinder portion 68 is. The opening 75 is covered with an operating portion 76 that is slidable in the axial direction with respect to the outer cylindrical portion 66 . A positioning pin 77 is fixed to the operating portion 76 and extends in the outer cylindrical portion 66 toward the rotation permitting portion 54 side. By positioning the operation portion 76 at a position close to the rotation permitting portion 54, the distal end portion of the positioning pin 77 is inserted into the positioning recess 60 provided in the rotation shaft 58 of the rotation permitting portion 54, thereby Circumferential engagement between 77 and the inner wall surface of positioning recess 60 restricts the relative rotation between sliding portion 62 and rotating shaft 58, and thus the swinging displacement of telescopic rod 64 by rotation permitting portion 54. . Further, by moving the operating portion 76 to a position far from the rotation permitting portion 54, the tip portion of the positioning pin 77 is pulled out from the positioning recess 60, thereby permitting the rotation of the sliding portion 62 about the rotation shaft 58. be done. Thus, in this embodiment, a rotation restricting mechanism is provided to restrict the rotation permission of the rotation permitting portion 54 . The positioning pin 77 is elastically biased toward the rotation permitting portion 54 by spring means such as a leaf spring 78 (see FIG. 3), so that the positioning pin 77 is prevented from unintentionally coming out of the positioning recess 60. is prevented.

The second attachment portion 14 is fixed to the tip portion of the inner cylindrical portion 68 . The method of fixing the second mounting portion 14 to the inner cylindrical portion 68 is not particularly limited, and may be bolt fixing, adhesion, welding, or the like. A C-shaped annular ring-shaped portion 79 provided on the gripping piece 22 is externally inserted into the inner cylindrical portion 68, and a notch-shaped opening provided in a part of the ring-shaped portion 79 in the circumferential direction is screwed. The second mounting portion 14 is fixed to the inner cylindrical portion 68 by being tightened in the closing direction.

On the connecting path between the first mounting portion 12 and the second mounting portion 14, the vertical movement mechanism 32 and the rotation permitting portion 54 are both closer to the first mounting portion 12 than to the second mounting portion 14. placed in position. As a result, the second mounting portion 14 side has a simple structure, is small and lightweight, and the drip table 82 is less likely to fall due to the weight of the drip table connecting device 10. Since the second attachment part 14 side is made small, it is less likely to be an obstacle during operations such as treatment and transportation.

As shown in FIGS. 8 and 9, the drip table connection device 10 having such a structure connects the stretcher 80 as the patient-mounted device and the drip table 82 to each other. The stretcher 80 has an elevating function capable of vertically changing the position of a patient mounting surface 84 on which a patient is mounted. FIGS. 8-10 show the stretcher 80 with the patient mounting surface 84 in its lowest position. The stretcher 80 is made movable by wheels 86 . The drip table 82 includes a base 90 movable by wheels 88 and a support 92 extending upward from the base 90 .

The first attachment portion 12 of the drip table connecting device 10 is detachably attached to the stretcher 80 by inserting the insertion rod 18 into a vertically extending attachment hole 94 provided in the stretcher 80 . By inserting the frame of the stretcher 80 inside the rotation restricting portion 20, the rotation of the first mounting portion 12 around the insertion rod 18 is restricted by the engagement between the rotation restricting portion 20 and the frame of the stretcher 80. there is As a result, the first mounting portion 12 is positioned with respect to the mounting hole 94 in the circumferential direction of the mounting hole 94 , and the vertical movement mechanism 32 connected to the first mounting portion 12 moves laterally from the stretcher 80 . held apart.

It is desirable that the first attachment portion 12 is positioned and fixedly attached to the stretcher 80 in the vertical direction. For example, the insertion rod 18 is fitted into the mounting hole 94 of the stretcher 80 or the frame of the stretcher 80 is fitted inside the rotation restricting part 20 to move the first mounting part 12 up and down with respect to the stretcher 80 . It can be easily positioned in any direction. However, it is also possible to fix the first mounting portion 12 and the stretcher 80 with bolts or the like so as to position them more firmly in the vertical direction.

The second attachment portion 14 of the drip table connection device 10 is detachably attached to the support 92 of the drip table 82 . That is, with the pair of gripping pieces 22 and 24 opened, the support 92 of the drip stand 82 is inserted between the pair of gripping pieces 22 and 24 from the side in a substantially horizontal direction. After the pair of gripping pieces 22 and 24 are closed and the support 92 is gripped by the pair of gripping pieces 22 and 24, the locking lock 26 holds the pair of gripping pieces 22 and 24 in the closed state. As a result, the support 92 of the drip table 82 is held by the pair of gripping pieces 22 and 24 , and the second mounting portion 14 is attached to the support 92 of the drip support 82 . By releasing the restraint of the pair of gripping pieces 22 and 24 by the locking lock 26 and opening the pair of gripping pieces 22 and 24, the support 92 can be removed laterally from the second mounting portion 14. , and the second attachment portion 14 is detachably attached to the drip table 82 without requiring a special operation such as lifting the drip table 82 .

It is desirable that the second attachment portion 14 is positioned and fixedly attached to the drip table 82 in the vertical direction. In this embodiment, the frictional resistance acting between the pair of gripping pieces 22 and 24 and the post 92 positions the second mounting portion 14 and the drip table 82 in the vertical direction. For example, a non-slip made of a material having a large coefficient of friction may be provided between the pair of gripping pieces 22 and 24 and the post 92 .

By attaching the first attachment portion 12 to the stretcher 80 and attaching the second attachment portion 14 to the drip table 82 in this way, the stretcher 80 and the drip table 82 are interconnected by the drip table connection device 10 . be done. When the stretcher 80 is moved, the drip table 82 connected to the stretcher 80 by the drip table connecting device 10 follows and moves, so that the medical staff and the patient do not need to hold the drip table 82.

As shown in FIG. 8 , the drip table connecting device 10 is bent by rotating the sliding portion 62 about the rotating shaft 58 at the rotation permitting portion 54 provided on the connecting path between the stretcher 80 and the drip table 82 . A telescopic rod 64 provided closer to the second mounting portion 14 than the rotation permitting portion 54 is allowed to swing in the horizontal direction. In this embodiment, the second mounting portion 14 is movable by 30 degrees to the position indicated by the two-dot chain line in FIG. Therefore, the position of the drip table 82 with respect to the stretcher 80 can be changed according to the width of the passage. Moreover, it is possible to change the distance between the stretcher 80 and the drip table 82 by stretching and deforming the telescopic rod 64, and interference between the stretcher 80 and the drip table 82 can be prevented. FIG. 8 shows a state in which the first attachment portion 12 is arranged on the side of the head side of the stretcher 80, but the first attachment portion 12 is arranged on the other side of the head side or the foot side. It is also possible to change the position of the drip table 82 with respect to the stretcher 80 as appropriate.

Here, the drip table connection device 10 allows the relative displacement of the stretcher 80 and the drip table 82 in the vertical direction due to the elevation of the patient mounting surface 84 of the stretcher 80 without releasing the connection between the stretcher 80 and the drip table 82. be able to. Since FIGS. 9 and 10 show the case where the patient mounting surface 84 of the stretcher 80 is positioned at the lower end position, the raising of the patient mounting surface 84 will be described.

As the patient mounting surface 84 rises, an upward force is exerted by the stretcher 80 on the first attachment portion 12 attached to the frame of the stretcher 80 surrounding the patient mounting surface 84 . Since the first mounting portion 12 is fixed to the housing 34 , an upward force is transmitted to the housing 34 . Since the housing 34 can be displaced upward with respect to the movable portion 38 including the connecting fitting 48, it is displaced upward with respect to the movable portion 38 by an upward input. Therefore, the drip table connection device 10 displaces the second attachment portion 14 from the upper end position side shown in FIG. 1 toward the lower end position side shown in FIG. The lift of the patient mounting surface 84 of the stretcher 80 can be allowed while maintaining the coupled state.

7 toward the upper end position shown in FIG. 1, the stretcher 80 and the drip stand 82 move horizontally. It is also possible to allow the patient mounting surface 84 of the stretcher 80 to descend while maintaining the connected state. In short, the vertical movement mechanism 32 of the drip table connection device 10 allows relative movement of the stretcher 80 with respect to the drip table 82 in both vertical directions.

The patient mounting surface 84 of the stretcher 80 does not necessarily have to be positioned at either the upper end position or the lower end position, and may be stopped at any position between the upper end position and the lower end position. Stoppable positions may be set stepwise between the position and the lower end position. Since the vertical movement mechanism 32 of the drip table connection device 10 can hold the first mounting portion 12 and the second mounting portion 14 at any relative position in the vertical direction, the patient on the stretcher 80 can move vertically. The first mounting portion 12 can be held at a position corresponding to the mounting surface 84 .

The first mounting portion 12 is fixedly mounted on the stretcher 80 in the vertical direction, and the second mounting portion 14 is fixedly mounted on the drip table 82 in the vertical direction. As a result, for example, when the stretcher 80 moves downward relative to the drip table 82 , it is possible to prevent the problem that the first mounting portion 12 does not follow the stretcher 80 and comes off the stretcher 80 . In addition, when the stretcher 80 moves upward relative to the drip table 82 , it is possible to prevent the mounting position of the second mounting portion 14 from being displaced in the vertical direction with respect to the support 92 of the drip table 82 . Therefore, when the stretcher 80 is moved up and down, the force acting between the first attachment portion 12 and the second attachment portion 14 is effectively applied to the vertical movement mechanism 32, and the movable portion 38 is moved by the vertical movement mechanism 32 to the stretcher. It can be moved in the vertical direction corresponding to the elevation of 80 .

Note that instead of the first mounting portion 12 of the above embodiment, a first mounting portion 102 having a different structure such as the drip table connecting device 100 shown in FIG. 11 can be employed. In the following description, members and portions that are substantially the same as those in the above embodiment are denoted by the same reference numerals in the drawings, and description thereof is omitted. Also, although FIG. 11 shows only the main part, the second mounting part (not shown) can adopt the same structure as that of the above-described embodiment.

The first mounting portion 102 has a mounting bracket 103 . The mounting bracket 103 has a groove shape with an upside down direction, and one side wall portion serves as a connection plate portion 104 that is bolted to the vertical movement mechanism 32 of the connection main body portion 16 at the bottom, and the other side wall portion is a connection plate portion 104 . A first clamping portion 106 clamps a fence 122 to be described later.

A fastening screw 108 is provided on the upper portion of the mounting bracket 103 so as to pass through the first clamping portion 106 and the connecting plate portion 104 in the opposing direction. The fastening screw 108 has a structure in which a handle is attached to the head of the bolt so that it can be gripped by hand and rotated. The fastening screw 108 is rotatable about the axis with respect to the mounting bracket 103, and is screwed into the slider 112 provided between the first holding portion 106 and the connecting plate portion 104 facing each other. there is The fastening screw 108 is prevented from unintentionally coming off due to the engagement between the engagement member 110 screwed to the tip of the fastening screw 108 and the first clamping portion 106 .

The slider 112 is screwed onto the fastening screw 108 and moves in the axial direction of the fastening screw 108 as the fastening screw 108 rotates. Since the slider 112 overlaps the upper bottom wall portion of the mounting bracket 103 , it is prevented from rotating together with the fastening screw 108 . A holding member 114 is fixed to the slider 112 .

The clamping member 114 integrally includes a fixed portion 116 and a second clamping portion 118 . The fixing portion 116 has a substantially flat plate shape, and is fixed to the slider 112 by overlapping with the lower surface of the slider 112 . The second holding portion 118 extends downward from the end portion of the fixing portion 116 on the side of the connecting plate portion 104 and faces the first holding portion 106 . The second holding portion 118 has an upper portion connected to the fixing portion 116 that is inclined downward and gradually approaches the connecting plate portion 104 , and a lower portion that is downward and gradually separates from the connecting plate portion 104 . A locking piece 120 is inclined to the right. A clamping member 114 having a second clamping portion 118 moves in the axial direction of the fastening screw 108 together with the slider 112 as the fastening screw 108 rotates.

The first attachment portion 102 is adapted to be attached to the fence 122 of the stretcher 80 . That is, the handrail portion 124 provided at the upper end of the fence 122 is inserted between the facing surfaces of the first holding portion 106 and the second holding portion 118, and the first holding portion 106 and the second holding portion 118 are held together. The first attachment portion 102 is attached to the fence 122 by being sandwiched by. More specifically, first, the fastening screw 108 is loosened to separate the second clamping portion 118 from the first clamping portion 106, and then the handrail portion 124 of the fence 122 is placed between the first clamping portion 106 and the first clamping portion 106. It is inserted between the two sandwiching portions 118 facing each other. Next, by tightening the fastening screw 108 and bringing the second clamping part 118 closer to the first clamping part 106 , the handrail part 124 is held between the first clamping part 106 and the second clamping part 118 . The first attachment portion 102 is attached to the fence 122 by being sandwiched. Further, by loosening the fastening screw 108 while the first mounting portion 102 is attached to the fence 122, the handrail portion 124 of the fence 122 is removed from between the first clamping portion 106 and the second clamping portion 118. The first attachment portion 102 is detachably attached to the fence 122 . The handrail portion 124 has a large width, and the locking piece 120 of the second holding portion 118 enters below the handrail portion 124 to fix the first mounting portion 102 to the fence 122 in the vertical direction. position.

Thus, the specific structure of the first mounting portion shown in the above embodiment is merely an example and should not be construed as limiting. Similarly, the specific structure of the second mounting portion can also be changed as appropriate.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited by the specific descriptions. For example, the patient-mounted device is not limited to a stretcher, and may be a bed equipped with an elevating mechanism.

In the vertical movement mechanism 32, it is desirable to provide a housing 34 in order to prevent contact with the movable portion 38, entry of foreign matter, etc., and achieve stable operation. The portion housed in the housing 34 in the above embodiment may be exposed to the outside.

In the above-described embodiment, the first attachment portion 12 attached to the stretcher 80 is connected to the housing 34 of the vertical movement mechanism 32 and positioned in the vertical direction, and the second attachment portion 14 attached to the drip table 82. is connected to the movable portion 38 of the vertical movement mechanism 32 so as to be movable in the vertical direction. However, for example, the first mounting portion 12 may be vertically movable, or both the first mounting portion 12 and the second mounting portion 14 may be vertically movable. good. That is, in the above-described embodiment, the vertical movement mechanism 32 is provided only at the end portion on the side of the first mounting portion 12 in the connection main body portion 16, but instead of the end portion on the side of the first mounting portion 12, for example, Alternatively, in addition, a vertical movement mechanism may be provided at the end portion of the connecting body portion on the side of the second mounting portion 14 or at the middle portion of the connecting body portion 16 in the length direction.

In the above-described embodiment, as the vertical movement mechanism 32, a structure including a pair of linear type sliding bearings in which the sliding portion 42 is vertically slidable with respect to the guide rail 36 via the ball bearings 40 is exemplified. However, the structure for allowing the displacement is not particularly limited as long as the movable portion 38 can be displaced in the vertical direction. For example, a known linear bushing or linear ball bearing of linear type may be employed, or a sliding type bearing mechanism may be employed in addition to the ball bearing. For example, by inserting a guide rod provided on the other side into a sleeve provided on one side of the housing 34 and the movable portion 38 and displacing the guide rod relative to the sleeve so that the amount of insertion changes, The vertical displacement of the movable portion 38 with respect to the housing 34 may be guided. In addition to a pair of bearing mechanisms that support the movable portion 38 on opposite sides, a single bearing mechanism arranged behind the movable portion 38 (on the wall side on the insertion rod 18 side) or the like enables vertical displacement. It is also possible to support

A fall prevention mechanism that suppresses downward movement of the second mounting portion 14 side with respect to the first mounting portion 12 side by the constant load spring 46 is not essential. Alternatively, the second mounting portion 14 side may drop toward the first mounting portion 12 side due to the action of gravity. At that time, in order to prevent accidental free fall due to the action of gravity, for example, a ratchet mechanism that restricts downward movement is adopted as a fall prevention mechanism, and the release button of the ratchet is manually pressed downward by operating the ratchet mechanism. You may make it the movement to be implement|achieved by intentional operation.

In addition, the fall prevention mechanism may be any mechanism that reduces or prevents a free fall due to the action of gravity, and is not limited to the constant force spring 46. It can also be realized by utilizing the frictional resistance of the type slider, the balance due to the balance mass, and the like. The constant force spring is not limited to the specific structure shown in the example, and any type of constant force spring such as C-type or N-type can be employed. In addition, it is also possible to employ a combination of a plurality of urging means such as constant force springs and coil springs, friction type sliders, and balancing mechanisms using balance masses. A damper mechanism may also be used to limit the vertical movement speed.

The rotation permitting portion 54 and the telescopic rod 64 (extension deformation permitting portion) are not essential and can be omitted. Further, as the deformation permitting portion, instead of or in addition to the expansion/contraction deformation permitting portion, a bending deformation permitting portion that permits bending deformation may be provided. The bending deformation permitting portion can be realized, for example, by providing a flexible bendable portion as described in Japanese Patent Laid-Open No. 2014-068908 in the connecting body portion.

Further, in the above-described embodiment, the connecting body portion 16 is provided with an elastic deformation permitting portion such as the telescopic rod 64. A deformable portion can also be employed. For example, by elastically connecting the inner and outer cylinders 66 and 68 with a coil spring or the like, the connection main body 16 can be elastically connected so as to absorb or mitigate the impact when the drip stand is caught on something. It may be extended.

In the above-described embodiment, the rotation permitting portion 54 is provided only at the end on the side of the first mounting portion 12 in the connection body portion 16, but instead of the end on the side of the first mounting portion 12, for example, In addition or in addition, a rotation permitting portion may be provided at the end portion of the connecting body portion 16 on the side of the second attachment portion 14 or at an intermediate portion of the connecting body portion 16 in the length direction. Also, in the first attachment portion 12, for example, the insertion rod 18 may be rotatably inserted and attached to the attachment hole 94 of the stretcher 80 to form a rotation permitting portion. Of course, the rotation permitting portion 54 about the vertical axis is not essential in the present invention. You can allow it.

In the above-described embodiment, in the vertical movement mechanism 32, the relative displacement in the vertical direction between the first mounting portion 12 side and the second mounting portion 14 side is always permitted. It is also possible to employ a stopper mechanism that limits or prevents the relative movement of the . Such a stopper mechanism can be realized, for example, by a lock pin or a lock screw that fixedly positions the members (housing 34, movable portion 38, etc.) that are relatively vertically displaced.

Further, in the above-described embodiment, the case where the drip table connection device according to the present invention is mounted on a stretcher as an example of the patient mounting device has been illustrated, but the drip table connection device according to the present invention is an elevating mechanism for the patient mounting surface. It can be used to connect the drip table to a variety of patient-mounted devices, such as beds, wheelchairs, as well as stretchers, with or without a .

10 drip table connection device (first embodiment)
12 First attachment portion 14 Second attachment portion 16 Connection body portion 18 Insertion rod 20 Rotation limiting portion 22 First gripping piece 24 Second gripping piece 26 Locking lock 28 Lock fitting 30 Receiving portion 32 Vertical movement mechanism 34 Housing 36 Guide Rail 38 Movable Part 40 Ball Bearing 42 Slide Part 44 Shaft Member 46 Constant Load Spring (Drop Prevention Mechanism, Biasing Means)
48 Connecting fitting 50 Circular hole 52 Slit 54 Rotation permitting portion 56 Bracket 58 Rotation shaft 60 Positioning concave portion 62 Sliding portion 64 Telescopic rod (extension deformation permitting portion)
66 Outer cylinder part 68 Inner cylinder part 70 Lock screw 72 Guide projection 74 Guide hole 75 Opening part 76 Operation part 77 Positioning pin 78 Leaf spring 79 Ring-shaped part 80 Stretcher (patient mounting device)
82 drip table 84 patient mounting surface 86 wheel 88 wheel 90 base 92 strut 94 attachment hole 100 drip table connecting device (second embodiment)
102 First mounting portion 103 Mounting bracket 104 Connecting plate portion 106 First clamping portion 108 Fastening screw 110 Locking member 112 Slider 114 Clamping member 116 Fixed portion 118 Second clamping portion 120 Locking piece 122 Fence 124 Handrail

Claims (10)

a first attachment portion that is detachably attached to a patient-mounted device such as a stretcher;
a second attachment portion detachably attached to the drip table;
A drip tray connection device for connecting the drip tray to the patient-mounted device, comprising a connecting body portion that connects the first mounting portion and the second mounting portion, the drip tray connecting device comprising:
The connecting main body has a first mounting portion and a second mounting portion, while maintaining the connection state of the connecting body portion in the horizontal direction with respect to the first mounting portion and the second mounting portion. A drip table connection device provided with a vertical movement mechanism that allows relative movement of the parts in the vertical direction. 2. The drip table connection device according to claim 1, wherein the vertical movement mechanism is provided with a fall prevention mechanism that exerts a restraining force against downward movement of the connection main body due to gravity. 3. The drip table connection device according to claim 2, wherein the fall prevention mechanism includes biasing means that exerts an upward biasing force on the connection body. 4. The drip table connection device according to claim 3, wherein a constant force spring is used as said biasing means. A rotation permitting portion that permits rotation about a vertical axis is provided on a connecting path between the drip tray and the patient-mounted device by the connecting body portion, the first mounting portion, and the second mounting portion. 5. The drip table connection device according to any one of claims 1 to 4, which is provided in at least one place. The drip table connection device according to any one of claims 1 to 5, wherein the connection main body portion includes at least one of a lengthwise expansion/contraction deformation allowance portion and a curved deformation allowance portion. The first mounting portion includes an insertion rod that is inserted from above into a mounting hole that is provided in the patient mounting apparatus and extends in the vertical direction, and a rotation around the insertion rod that restricts rotation of the first mounting portion. 7. The drip table connection device according to any one of claims 1 to 6, further comprising a rotation restricting portion that positions the relative to the mounting hole. The second mounting portion includes a pair of gripping pieces that can be opened and closed around a vertical axis, and a locking lock that holds the pair of gripping pieces in a closed state. 8. Any one of claims 1 to 7, wherein the support of the drip table inserted from the side below is gripped by holding the pair of gripping pieces in a closed state by the locking lock. 4. The drip table connection device according to . The drip tray according to any one of claims 1 to 8, wherein the first mounting portion and the second mounting portion are both fixedly attached to the patient-mounted device and the drip tray in a vertical direction. Coupling device. Claims 1 and 2, wherein the rotation permitting portion according to claim 5 and the vertical movement mechanism are both provided at a position closer to the first mounting portion than to the second mounting portion. , 3, 4, 6, 7, 8, 9.

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