JP5470153B2 - Support structure for the support in the medical table - Google Patents

Description

  The present invention relates to a support for supporting a leg of a patient, a support arm to which the support is attached via a direction changing mechanism, and a base frame to which the support arm is attached so as to be reciprocally movable. And is configured to be able to change direction in the direction changing mechanism, and from a retraction position such as an intermediate reciprocation position of the support leg, in other words, a normal use of the abutment apparatus (in other words, the patient can open the leg) The forward movement to the forward movement position as a position at a height position etc. that can be used as an original support for posture or the like is performed with the forward movement of the support arm, The present invention relates to a support structure for a support in a medical table.

  Patent Document 1 discloses a delivery table (hereinafter referred to as “delivery table of Patent Document 1”) having the above-described supporter support structure. And in the support structure of the support device in the delivery table of Patent Document 1, the operator of the medical table holds the support device that is used as an auxiliary table for the bed part in the bed state of the delivery table by hand. To the normal use of the support mechanism. Specifically, the forward movement includes a first turning operation for changing the upper surface of the support device used as an auxiliary base of the bed portion, and the support device with respect to the base end side. The second direction changing operation for lowering the tip end side is performed by a direction changing mechanism. Further, the forward movement includes an ascending operation for moving the support arm forward so that the support leg moves upward. Therefore, it is possible to smoothly perform a complicated operation for moving the support leg from the backward movement position used as an auxiliary base of the bed portion to the forward movement position where the normal support leg is used. Therefore, the above-mentioned handler can quickly move the support mechanism so that the person around the medical table, such as the patient who uses the medical table, does not pose a danger. In accordance with an emergency medical situation such as the start, the support device can be safely and quickly transferred from the return position to the use state of the support device.

JP 2010-173 A

  However, in the support structure in the delivery table of Patent Document 1 configured as described above, either one or both of the pair of left and right support legs in the normal use state of the support system is arranged in the longitudinal direction of the delivery table. In some cases, it may be desirable to move further from the extended center line. Such cases include the case where a delivery assistant receives a newborn born from a patient by delivery from the side of the child cradle of the delivery table. This is because, in the case of such childbirth assistance, one or both of the support legs is used to make it easier for the caregiver to enter the middle position between the right and left support legs and the child cradle. This is because it is desirable to move the lens further outward from the center line, for example, by further increasing the opening angle.

  According to the present invention, the above-mentioned drawbacks of the support structure for a support in the delivery table of Patent Document 1 can be effectively corrected with a relatively simple configuration.

  The present invention relates to a support for supporting a leg of a patient, a support arm to which the support is attached via a direction changing mechanism, and a base frame to which the support arm is attached so as to be reciprocally movable. The support leg is configured to be able to change direction by the direction changing mechanism, and the forward movement from the return movement position of the support leg to the forward movement position as a normal use state of the support leg is the support arm. In the support structure for a pedestal in a medical table, which is configured to be performed with the forward movement of the medical table, the support arm includes a first support arm portion on the proximal end side and a second support arm side on the distal end portion side. And a connecting part that connects the second support arm part to the first support arm part so as to be able to reciprocate with respect to the first support arm part. The support arm portion is relative to the first support arm portion. By moving forward, the second support leg in which the support leg in the forward movement position in the normal use state of the support leg moves away from the center line extending in the front-rear direction of the medical table in plan view. It is related to the support structure supporting structure characterized by being configured to move forward until the device is in use.

  And in this 1st embodiment, this invention is provided with the lock means in which the said connection part locks the said 2nd support arm part in the backward movement position with respect to the said 1st support arm part, The said lock means It is preferable that the lock of the second support arm portion with respect to the first support arm portion is released by performing a lock release operation on the first support arm portion. In the second embodiment of the present invention, it is preferable that the second support arm portion is pivotally supported by the first support arm portion so as to be reciprocally rotatable. In the first and second embodiments, the locking means has a shaft that can rotate an intermediate portion of either the first support arm portion or the second support arm portion. An engaging portion provided at one end of the lock lever is provided on the other of the first support arm portion and the second support arm portion, including a substantially L-shaped lock lever that is supported. The second support arm portion is configured to be locked with respect to the first support arm portion by engaging with the engaging recess, and is unlocked from the other end of the lock lever. It is preferable that the second support arm unit is unlocked with respect to the first support arm unit by operating the operation unit.

  In the third embodiment of the present invention, the backward movement position of the support is an intermediate backward movement position, and the support leg is further moved from the intermediate backward movement position to the second backward movement position. It is preferable to be configured to be able to move backward, and it is preferable that the support leg is configured to function as an auxiliary table for the bed portion in the second backward movement position. In the third embodiment, the forward movement of the support leg from the second backward movement position to the forward movement position is performed in the first direction for the support leg to change its upper surface. A changing operation, a second direction changing operation in which the support leg moves down the distal end side with respect to the base end side, and an action in which the support leg is lifted by the forward rotation of the support arm. It is preferable. In this case, in the second backward movement position, the upper surface of the supporting leg is configured to be a substantially flat surface so that the upper surface of the supporting base can function as the upper surface of the auxiliary base. It is preferable that the upper surface of the support leg is changed from the substantially flat surface to a leg resting surface having a recess after the first turning operation.

  Further, according to the fourth embodiment of the present invention, in the fourth embodiment, the shortest distance in a plan view between the center line extending in the front-rear direction of the medical table and the support device is used as the normal support device. The ratio of the second shortest distance to the first shortest distance is 1 when the first shortest distance is used in the state and the second shortest distance is used in the second support leg use state. It is preferably in the range of .10 to 1.40 (more preferably 1.15 to 1.35).

  According to the present invention, a pedestal in a normal use state of the pedestal is viewed from a center line extending in the front-rear direction of the medical table with a connecting portion provided separately from the direction changing mechanism on the support arm for the pedestal. It can be moved forward to the second supporting leg use state that has moved away. Accordingly, it is possible to allow a person to easily approach the vicinity of the inside of the support leg even though the operation is relatively simple and relatively easy. For example, when the present invention is applied to a delivery table, Because the caregiver can easily enter the middle position between the support and the child cradle, the baby born from the patient can be easily received from the side of the child cradle of the delivery table. it can.

  According to the second aspect of the present invention, it is possible to effectively prevent the support device in the normal use state of the support mechanism from moving unexpectedly to the use state of the second support device with a relatively simple configuration. can do. According to the third aspect of the invention, the reciprocating motion of the second support arm portion relative to the first support arm portion can be performed relatively smoothly with a relatively simple configuration. Furthermore, according to the invention which concerns on Claim 4, the reciprocating rotation of the 2nd support arm part with respect to the 1st support arm part, and the use of the support device from the normal support device use state to the second support device use state Unexpected forward movement can be performed as smoothly as possible with the simplest possible configuration.

  Moreover, according to the invention which concerns on Claim 5, since a support device can be used as an auxiliary stand of a bed part, the structure of a bed part can be rationalized and also a patient is easily introduced into a bed part. be able to.

  According to the sixth aspect of the present invention, the first turning operation for the support device to change the upper surface thereof, and the support device lowers the tip end side relative to the base end side. Since the two direction changing operations are respectively performed, a complicated forward movement operation from the second backward movement position to the forward movement position of the support can be performed relatively smoothly.

  Moreover, according to the invention which concerns on Claim 7, both the function as an auxiliary stand of a bed part and the function as an original support device can be exhibited comparatively favorably.

  Further, according to the invention according to claim 8, despite the fact that the patient is not physically and mentally overburdened, the child caregiver is able to You can easily enter the middle position.

It is a schematic perspective view in the bed state of the delivery table in one Example which applied this invention to the delivery table. Example 1 It is a right view in the bed state similar to FIG. 1 of the delivery table of FIG. Example 1 It is a top view in the bed state similar to FIG. 1 of the delivery table of FIG. Example 1 FIG. 3 is a right side view of the delivery table of FIG. Example 1 FIG. 5 is a plan view of the delivery table of FIG. 1 in a state where a first support leg is used as in FIG. 4. Example 1 It is a top view in the second support leg use state of the delivery table of FIG. Example 1 FIG. 4 is a schematic plan view of the support device support structure shown in FIG. 3. Example 1 FIG. 6 is a horizontal cross-sectional view of the main part of the right support leg support arm shown in FIG. 5 in the first support leg use state similar to FIG. 5. Example 1 It is a horizontal sectional view in the 2nd support leg use state similar to FIG. 6 of the principal part of the right arm support arm shown in FIG. Example 1 It is a rear view in the bed state similar to FIG. 2 of the right side support leg vicinity shown in FIG. Example 1 FIG. 15 is a rear view of the first transitional stage in the vicinity of the right support leg of FIG. 9 to shift from the bed state shown in FIG. 9 to the support leg use state shown in FIG. 14. Example 1 It is a left view of the right support leg vicinity of FIG. Example 1 FIG. 15 is a left side view at the first position in the middle of the transition from the first transition stage shown in FIG. 10 to the second transition stage shown in FIG. Example 1 FIG. 15 is a left side view at the second position in the middle of the transition from the first transition stage shown in FIG. 10 to the second transition stage shown in FIG. Example 1 FIG. 15 is a rear view of the second transition stage in which the state of the bed shown in FIG. 9 is shifted to the state where the support is used shown in FIG. Example 1 FIG. 15 is a left side view of the vicinity of the right support leg of FIG. 14. Example 1

  Next, one embodiment in which the present invention is applied to a delivery table is described as "1, schematic configuration of the delivery table", "2, configuration of the support mechanism", "3, schematic operation of the delivery table". , "4. Operation of the support structure for supporting leg" will be described with reference to the drawings.

1. Schematic configuration of delivery table As shown in FIGS. 1, 2 and 4, the delivery table 1 has casters as a first base frame installed on the floor of a delivery room such as obstetrics. A lower base frame 2 is provided. Therefore, this lower base frame 2 has casters 3 at its four corners, for example. And these casters 3 are comprised so that it may be arrange | positioned on the said floor surface. Further, an elevating base frame 4 as a second base frame is disposed on the lower base frame 2 with casters via, for example, a pair of well-known elevating mechanisms 5a and 5b. In addition, these raising / lowering mechanisms 5a and 5b may be a feed screw mechanism driven by a motor, for example. The elevating base frame 4 may have a flat box-shaped base frame main body (not shown), and the upper cover portion 6a and the lower cover portion respectively covering the base frame main body. 6b may have a cover member 6 integrated with each other.

  As shown in FIGS. 2 and 4, the front portion of the lifting base frame 4 is pivotally supported by the front lifting mechanism 5 a by a front support shaft 7. In addition, a rear portion of the lifting base frame 4 is pivotally supported by the rear lifting mechanism 5b by a rear support shaft (not shown) so as to be rotatable and movable in the front-rear direction. Therefore, the front support shaft 7 is inserted into a substantially circular hole provided in the front portion of the elevating base frame 4. The rear support shaft is inserted into a long hole (not shown) provided in the rear portion of the lifting base frame 4 so as to extend substantially in the horizontal direction.

  In the vicinity of the upper end of the front part of the lifting base frame 4, as shown in FIGS. 1 to 6, the front end portion of the backrest 11 for supporting the patient's back portion can be rotated by a support shaft (not shown). Is pivotally supported. An operation means (not shown) such as a hydraulic cylinder for tilting the backrest 11 is attached and fixed to the rear portion of the lift base frame 4. Further, the distal end portion of the operating arm of the operating means is pivotally supported at a substantially intermediate portion in the front-rear direction of the backrest 11 by another support shaft. Further, as shown in FIGS. 1 to 6, a seat plate 10 for supporting the patient's buttocks is attached and fixed near the front end of the elevating base frame 4.

  As shown in FIGS. 1 to 6, a total of three patient guards are attached to the elevating base frame 4. The first type of guard is a detachable headboard 12 attached to the rear end of the lifting base frame 4 so as to face the patient's head (in other words, the rear end of the backrest 11). is there. The headboard 12 has a function of preventing a pillow used by a patient from falling backward from the backrest 11. The second type of guard is an intermediate portion in the front-rear direction of the left and right side portions of the lifting base frame 4 so as to face the left and right side portions of the upper body of the patient (in other words, the left and right side portions of the backrest 11). These are side fences 13a and 13b on both the left and right sides attached from the rear to the rear. The left and right side fences 13a and 13b have a function of preventing a patient or the like from falling from the delivery table (particularly the delivery table in a bed state) 1 to the left or right side. Is not particularly configured to be removable. Further, a pair of left and right fence guide mechanisms 14 are attached to the left and right sides of the lifting base frame 4. The pair of left and right fence guide mechanisms 14 can selectively hold the pair of left and right side fences 13a and 13b in the raised position (state shown in FIG. 1) or the lowered position, respectively.

  When the delivery table 1 is in the bed state shown in FIGS. 1 to 3, a rear child support 16 and a front child support 15 are adjacent to the front of the seat plate 10 in the vicinity of the front end of the seat plate 10. Are arranged sequentially. The child cradle 17 composed of the rear child cradle 16 and the front child cradle 15 is moved downward when the delivery table is used, and therefore receives a newborn born from the patient by delivery. be able to. In addition, since the structure and operation | movement of this support structure of the child stand 17 are not the summary of this invention, those description is abbreviate | omitted suitably in the text. However, the configuration and operation of the child cradle support structure can be substantially the same as those of the delivery table of Patent Document 1. When the delivery table 1 is in the bed state shown in FIGS. 1 to 3, a pair of left and right supporters 21, 22 are adjacent to the child support 17 on the left and right sides of the child support 17. Be placed. Further, a reference numeral 20 in FIGS. 1 to 7 indicates a pair of left and right support legs for attaching the left and right support legs 21 and 22 to the lifting base frame 4. A pair of left and right supporters 21 and 22 are attached to the respective distal ends of the pair of left and right support arms 20. The configuration of the support structure for the pair of left and right support legs 21 and 22 will be described in detail in “2, Configuration of the support mechanism support structure” in the next section.

  As shown in FIGS. 1 to 6, the delivery table 1 includes a pair of left and right grip devices 23 and 24 that are adjacent to the left and right sides of the seat plate 10. Each of the pair of left and right grip devices 23 and 24 includes a cylindrical attachment member 27 that is attached and fixed to the lifting base frame 4 via a cylindrical attachment member 28, and the attachment member 27. A grip member 26 that is rotatably connected via the connecting mechanism 25 may be provided. The pair of left and right grip members 26 function as anger grips for the patient in the standing state shown in FIG. Further, as shown in FIGS. 1 to 3, 5, and 6, each of the pair of left and right grip members 26 is manually rotated until the handler is in a lying state stored on the left side or the right side of the seat plate 10. It is configured so that it can be moved.

2. Structure of Supporting Device Support Structure The support structure of the left support device 21 and the support structure of the right support device 22 are a center line L ₁ extending in the front-rear direction of the delivery table ₁ (see FIG. ₅ ). 3, and FIG. 5 and FIG. 6) with respect to the axis of symmetry. Therefore, in the following, the configuration of the support structure of the right support leg 22 will be described with reference to FIGS. 7 to 15, and description of the configuration of the support structure of the left support leg 21 will be omitted as appropriate.

  The right support device 22 when the delivery table 1 is in the bed state as the support device non-use state shown in FIGS. 1 to 3 is shown in FIGS. 7 and 9. As shown in FIGS. 7 and 9, the right support leg 22 is connected to one end side (in other words, the tip end side) of the right support arm 20 for the right support leg via a direction changing mechanism 31. ing. Further, the other end side (in other words, the base end side) of the support arm 20 is pivotally supported by the elevating base frame 4 by a support shaft 33 as shown in FIGS. 2 and 7. Yes. Further, a support shaft (hereinafter referred to as “first shaft”) 34 is fixed to the one end side of the support arm 20. Since the first shaft 34 is pivotally supported by the first bearing portion 36 of the bearing member 35, the bearing member 35 is interposed at the distal end portion of the support arm 20 via the first shaft 34. And is pivotally attached. In addition, in the bed state shown in FIGS. 1 to 3, the axis of the first shaft 34 is preferably slightly inclined toward the outside (in other words, on the right side) from the rear to the front. . For this purpose, a bent portion 20 a is provided on the distal end side of the support arm 20. The first shaft 34 is fixed to the bent portion 20a. A stopper member 37 is fixed to one end surface of the first shaft 34. As shown in FIG. 9, the stopper member 37 is provided with a stopper portion 38 that can regulate the backward rotation position of the support frame 41.

When the delivery table 1 is in the bed state shown in FIGS. 1 to 3, 7, and 9, the center line L ₁ extending in the front-rear direction of the delivery table ₁ is, in the illustrated embodiment, the support arm 20. (in other words, approximately parallel to) the center line L ₂ and the substantially same direction which extends in the longitudinal direction is. Note that the angle θ ₁ (see FIG. 7) formed by the axial direction L ₃ of the first shaft 34 and the center line L ₁ or L ₂ is viewed in a plan view as shown in FIG. 7 in the illustrated embodiment. Is about 20 °, and is about 0 ° in a side view as shown in FIG. The angle θ ₁ is generally in the range of 10 ° to 30 ° in plan view from the viewpoint of practicality, and more preferably in the range of 15 ° to 25 °. Preferably, in a side view, it is preferably in the range of −10 ° to 10 °, and more preferably in the range of −5 ° to 5 °.

  As shown in FIGS. 7 to 15, the bearing member 35 further includes a second bearing portion 42. A supporting shaft (hereinafter referred to as “second shaft”) 43 is pivotally supported by the second bearing portion 42 so as to be rotatable. Further, a support frame 41 to which the support 22 is integrally attached is pivotally supported on the second shaft 43 so as to be rotatable. In this case, if the support leg frame 41 is configured to be rotatable with respect to the second bearing portion 42 (in other words, the bearing member 35), the second support shaft 43 may be the second bearing portion 42 or It may be fixed to the support frame 41. Note that the axis of the second shaft 43 may extend substantially in the vertical direction in the bed state shown in FIGS. However, the axial direction of the second shaft 43 may be slightly inclined in any direction with respect to the vertical direction in the bed state shown in FIGS. In general, this inclination angle is preferably in the range of 0 ° to 10 °, and more preferably in the range of 0 ° to 5 °, from the viewpoint of practicality.

  The bearing member 35 has a lock mechanism 44 that locks the rotation of the support frame 41 relative to the bearing member 35 when the support 21 is in the use state shown in FIGS. 5, 6, 14, and 15. Is provided. As shown in FIG. 11 and the like, the lock mechanism 44 includes an operation lever 45 as an operation member operated to release the lock. The operation lever 45 is pivotally supported on the support frame 41 by a support shaft 49. The lock mechanism 44 includes an engagement mechanism including a lock pin 46 as an engagement portion provided on the operation lever 45 and a protrusion 47 as an engaged portion provided on the stopper member 37. Good. The lock pin 46 is inserted into a long hole 48 provided in the support frame 41. When the operation lever 45 reciprocates around the support shaft 49 as a fulcrum, the lock pin 46 is guided by the long hole 48 so as to reciprocate between one end side and the other end side of the long hole 48. It is configured. Therefore, the direction changing mechanism 31 includes first and second shafts 34 and 43, a bearing member 35, a support frame 41, a stopper member 37, an operation lever 45, and a lock mechanism 44.

  As shown in FIG. 2, the base end portion of the support arm 20 for the support leg is rotatable to the lifting base frame 4 by a support shaft 33 (the axis is indicated by reference numeral 51 in FIG. 7). It is pivotally supported. 2 and 4, reference numeral 61 indicates that when the support device 22 is returned from the use state of the support device shown in FIGS. 5 and 6 to the bed state, the operator moves forward in the counterclockwise direction shown in FIG. It is a lock release operation lever as a lock release operation means to be operated. Since the support arm 20 is unlocked when the forward rotation operation is performed in this manner, the support arm 20 and the supporting leg device 22 and the like are rotated in the clockwise direction in FIG. It is comprised so that it may rotate backward to the backward rotation position shown in FIG. Further, as shown in FIGS. 7, 8A and 8B, the support arm 20 for the supporting leg device includes a support arm portion 52 (hereinafter referred to as “first support arm portion”) 52 and a distal end portion side. Support arm part (hereinafter referred to as “second support arm part”) 53, and a connecting part 54 that connects the first support arm part 52 and the second support arm part 53. . The connecting portion 54 is connected to the support shaft 55 that pivotally supports the second support arm portion 53 with respect to the first support arm portion 52, and to the first support arm portion 52. A lock means or a lock member 56 having a substantially L shape as a lock member capable of locking the second support arm 53 so as not to rotate is provided. An intermediate portion (in other words, a bent portion) of the lock lever 56 is pivotally supported on the second support arm portion 53 by a support shaft 57. The lock lever 56 is elastically urged clockwise in FIG. 8A by a spring 58 such as a leaf spring as elastic urging means.

  Since it is as above-mentioned, the above-mentioned description that the supporters 21 and 22 are attached to the front-end | tip part of the support arm 20 specifically, the supporters 21 and 22 are the 1st of the support arms 20. It means that it is attached to the tip of the second arm portion 53. The above description that the base end side of the support arm 20 is pivotally supported by the lifting base frame 4 by the support shaft 33 is specifically the first of the support legs 21 and 22. This means that the base end side of one arm portion 52 is pivotally supported by the elevating base frame 4 so as to be rotatable by a support shaft 33. In addition, the above description that the bearing member 35 is rotatably attached to the distal end portion of the support arm 20 via the first shaft 34 is specifically the bearing member 35 is the second arm. It means that it is rotatably attached to the tip of the portion 53 via the first shaft 34. Furthermore, the structure of the support structure supporting structure other than the structure of the support structure supporting structure described above can be substantially the same as that of the delivery table of Patent Document 1.

3. Schematic operation of the delivery table When the delivery table 1 is in the normal bed state shown in FIGS. 1 to 3, the backrest 11 is lying in a substantially horizontal state. In this case, when the operator operates a predetermined switch (not shown), the operating arm of the operating means gradually extends, so that the backrest 11 is held up to a standing position inclined at an arbitrary angle toward the front. Can come. Further, the operator can cause the backrest 11 to perform a lying-down operation opposite to the standing-up operation by operating a predetermined switch (not shown).

  When the delivery table 1 is in the normal bed state shown in FIGS. 1 to 3, the operator can sequentially or simultaneously support each of the pair of left and right support legs 21 and 22 as indicated by chain lines in FIG. 4. It can be shifted to the use state. In this case, the operator first holds each of the support legs 21 and 22 by hand, and extends around the first rotation center (in other words, along the length direction of the support legs 21 and 22 (in other words, If the first shaft 34) shown in FIG. 7 is rotated about 90 ° about the fulcrum, the support legs 21 and 22 shift to the first transition stage. Next, the handler uses the second rotation center (in other words, the second shaft 43 shown in FIG. 7) extending substantially in the left-right direction at the distal end of the support arm 20 for the support leg as a fulcrum. When the devices 21 and 22 are rotated forward in the clockwise direction in FIG. 2 by their own weight or the like, the support devices 21 and 22 shift to the second transition stage. Next, when the operator lifts each of the pair of left and right supporters 21 and 22 by hand, the support arm 20 for the supporters supports the third rotation center (in other words, the support shaft 33 shown in FIG. 4). As shown in FIG. For this purpose, each of these supporters 21 and 22 is brought into use with a supporter having an appropriate height as shown by a solid line or a chain line in FIG. It should be noted that the reverse movement of the support legs 21 and 22 from the support stand state of the bed portion to the use state of the support mechanism reverse to the forward movement as described above also causes the unlocking operation lever 61 shown in FIG. The same operation can be performed after the rotation operation. The operation of the support structure for the supporters 21 and 22 will be described in more detail in “4, Operation of the support structure” in the next section.

  On the other hand, when the delivery table 1 is in the bed state shown in FIGS. 1 to 3, the handler can cause the child cradle 17 functioning as an auxiliary pedestal for the bed portion to function as the original child cradle. In this case, the operator pushes the upper surface of the child cradle 17 in the raised position shown in FIGS. 1 to 4 downward by hand with the first unlocking operation section in the operating state, and a pair of left and right links. When the mechanism is operated, the child cradle 17 moves forward to the lowered position and enters the first child cradle use state. And, if the handler moves the child support base 17 backward by pushing the child support base 17 in the forward position by hand while keeping the second unlocking operation section in the operating state, Since the rear child cradle 16 moves into the elevating base frame 4, the child cradle 17 enters the second child cradle use state. Moreover, the reverse movement opposite to the forward movement as described above from the auxiliary stand state of the bed portion of the child stand 17 to the second child stand use state can be similarly performed. The operation of the backrest 11 described above in this section (that is, the section of “3, Schematic operation of the delivery table”) is substantially the same as that of the delivery table of Patent Document 1, and is the same. It may be performed.

  1 to 3, 5, and 6, the grip members 26 of the pair of left and right grip devices 23, 24 are in a fallen state (in other words, in a retracted state and in a grip non-use state). ). Since the pair of left and right grip members 26 in the lying state extend forward from the connecting portion 25 in a substantially horizontal state, the bed portion (specifically, in the bed state of the delivery table 1). Are adjacent to the left and right sides of the seat plate 10). Therefore, when the patient gets on the delivery table 1 or gets off the delivery table 1, the patient's clothes may be caught by the grip member 26 even if the grip member 26 (in other words, the grip devices 23, 24) is straddled. Absent.

  1, 3, 5, and 6, a patient, a nurse, or the like holds the grip member 26 by hand and then uses the coupling mechanism 25 as a fulcrum to counterclockwise in FIG. 2. When it is rotated forward in the direction, the grip device 23 shifts to the grip usage state shown in FIG. In FIG. 4, the grip member 26 is in an upright state (in other words, the original grip member 26 is in a grip use state). The pair of left and right grip members 26 of the pair of left and right grip devices 23 and 24 are adjacent to each other on the left and right sides of the delivery table 1 (specifically, the seat plate 10) in a standing state. Therefore, the patient who uses the delivery table 1 can effectively use the pair of left and right grip members 26 as an anger grip. Further, when the handler releases the lock, the handler can return each of the pair of left and right grip members 26 from the standing state to the lying state by their own weight or the like.

4, the support structure of the support structure and the right support leg 22 of the operation left support leg 21 of the support leg unit support structure, the center line L ₁ extending in the longitudinal direction of the delivery table 1 symmetry axis (FIGS. 3, 5 and As shown in FIG. 6, although they are individually performed, the operations are substantially symmetrical with each other. Therefore, in the following, the operation of the support structure of the right support leg 22 will be described in detail with reference to FIGS. 7 to 15, and the specific description of the operation of the support structure of the left support mechanism 21 will be omitted as appropriate. To do.

When the delivery table 1 is in the bed state shown in FIGS. 1 to 3, the handler of the delivery table 1 puts the pair of left and right support legs 21 and 22 into the use state of the support equipment shown in FIGS. 4 to 6 sequentially or simultaneously. Can be migrated. This point will be described with respect to the right support device 22. First, the operator grasps the right support device 22 in the state shown in FIGS. 1 to 3, 7, and 9 by hand and holds the axis of the first shaft 34. substantially outside (i.e., approximately the right) to L ₃ as a fulcrum by approximately 90 ° pivots forward toward the shifts to the first transition stage showing the right support leg 22 in FIGS. When the delivery table 1 is in the bed state shown in FIGS. 1 to 3, the stopper portion 62 of the support frame 41 contacts the stopper portion 38 of the stopper member 37 as shown in FIGS. 7 and 9. the condensate rotational position of support leg unit frame 41 to the axis L ₃ of the first shaft 34 as a fulcrum is restricted. Then, when the right support leg 22 rotates about 90 ° as described above, the stopper part 64 of the bearing member 35 abuts against the stopper part 65 of the stopper member 37 as shown in FIG. The position of the frame 41 in the forward rotation direction is restricted. Further, in this state, the leg resting surface 66 of the right support leg 22 is directed substantially upward as shown in FIG.

  When the delivery table 1 is in the bed state shown in FIGS. 1 to 3, the left and right supporters 21, 22 have a substantially flat surface 68 as the upper surface so that they can function as an auxiliary table for the bed portion 67. Yes. Therefore, when in the bed state, the upper surface of each of the backrest 11, the seat plate 10, the child cradle 17 and the pair of left and right support legs 21 and 22 is substantially the same as shown in FIGS. Being high and substantially flat, the bed portion 67 as a whole has a substantially flat upper surface. The left and right support legs 21 and 22 are suitable for placing the patient's legs when the left and right support legs 21 and 22 are rotated approximately 90 ° as described above to shift to the first transition stage shown in FIGS. 10 and 11. The leg resting surface 66 having the recessed portion 71 is the upper surface. In addition, in the illustrated embodiment, the angle at which the right support leg 22 rotates forward with the first shaft 34 as a fulcrum is about 90 °. From the viewpoint of practicality, the forward rotation angle is generally preferably in the range of 80 ° to 100 °, and more preferably in the range of 85 ° to 95 °.

  Next, as shown in FIGS. 10 and 11, when the handler holds the right support leg 22 in the first transition stage and moves forward by its own weight or the like, the right support leg 22 is moved to the second shaft 43. 14 and FIG. 15 through the first position shown in FIG. 12 and the second position shown in FIG. 13, respectively, from the position of the first transition stage shown in FIG. 10 and FIG. 11 is moved counterclockwise in FIG. 11 to the position of the transition stage. In this state, the stopper portion of the support frame 41 abuts against the stopper portion of the stopper member 37, thereby restricting the position of the support frame 41 in the forward rotation direction. At the same time, the lock pin 46 of the operating lever 45 is in contact with the protrusion 47 of the stopper member 37 as shown in FIG. 12, thereby passing through the state shown in FIG. As shown in FIG. 15, it gets over and engages with the protrusion 47. For this reason, the operation lever 45 is locked to the stopper member 37 (as a result, the second support arm portion 53).

In the bed state of the delivery table 1 shown in FIGS. 1 to 3, the first transition stage of the right support leg 22 shown in FIGS. 10 and 11, and the second transition stage shown in FIGS. 14 and 15, the support arm Since 20 is not particularly rotated forward with the support shaft 33 as a fulcrum, the right support device 22 is not yet in a use state of the support device. Further, the angle θ _{2 at which} the left and right support legs 21 and 22 rotate forward with the second shaft 43 as a fulcrum (not shown, but with respect to the second support arm portion 53 in the case of FIGS. 12 and 15) The angle difference between the support legs 21 and 22 is approximately 58 ° in the illustrated embodiment. The forward rotation angle θ ₂ is generally preferably in the range of 40 ° to 75 °, more preferably in the range of 50 ° to 65 °, from the viewpoint of practicality.

Next, when the operator lifts the right support leg 22 in the second transitional stage shown in FIG. 15 upward to an appropriate height by hand with the support shaft 33 (see FIG. 2) as a fulcrum, FIG. 4 and FIG. The first support leg use state shown is obtained. In this case, the direction changing mechanism 31 interposed between the right support device 22 and the support arm 20 simply rotates in the same manner as the right support device 22 and does not particularly perform another operation. Absent. 4 and 5, the support arm 20 uses the support shaft 33 as a fulcrum, for example, substantially horizontal, in the first support device use state (the same applies to the second support device use state described later shown in FIG. 6). It is preferable that the maximum angle of forward rotation θ ₃ (see FIG. 4) is regulated for the angle of forward rotation from the reverse rotation position. For this purpose, a backward rotation stopper portion for restricting the backward rotation position of the support arm 20 and an outward rotation stopper portion for restricting the maximum forward rotation position of the support arm 20 are provided. The support arms 20 are disposed respectively. Further, the elevating base frame 4 is provided with a stopper portion in which the position of the two types of stopper portions abuts and is regulated. In the illustrated embodiment, the maximum forward rotation angle θ _{3 at which} the support arm 20 rotates forward from the backward rotation position shown in FIG. 2 with the support shaft 33 as a fulcrum is about 50 °. The maximum forward rotation angle θ ₃ is generally preferably in the range of 40 ° to 60 °, and more preferably in the range of 45 ° to 55 °, from the viewpoint of practicality. Further, an angle formed by a center line L ₂ (see FIG. 7) extending in the length direction of the support arm 20 in the backward rotation position shown in FIG. 2 and a center line L ₁ extending in the front-rear direction of the delivery table 1. (Specifically, the angle viewed from the side) is approximately 0 ° in the illustrated embodiment. The angle formed by the center line L _{2 and the} center line L ₁ is generally preferably in the range of −10 ° to 10 ° from the viewpoint of practicality, and is preferably −5 ° to 5 °. More preferably, it is in the range.

  4 and 5, when the right support leg 22 is returned to the bed state shown in FIGS. 1 to 3 in the first support leg use state, the operator first moves the operation lever 61 shown in FIG. Rotate as shown. Since the support arm 20 is unlocked by this forward rotation, the return arm shown in FIG. 2 is rotated clockwise as viewed in FIG. 4 with the support shaft 33 as a fulcrum by the weight of the support arm 20 and the right support leg 22 and the like. Return to the moving position. During the backward rotation, a damper (not shown) for preventing the backward rotation from being suddenly performed can be provided. As a result, the right support device 22 shifts from the first support device usage state shown in FIGS. 4 and 5 to the second transition stage shown in FIGS. 14 and 15. At the time of this transition, as shown in FIG. 7, the direction changing mechanism 31 interposed between the right support device 22 and the support arm 20 simply rotates backwards in the same manner as the right support device 22. In particular, no other action is performed.

  When the right support 22 is shifted from the second transition stage shown in FIGS. 14 and 15 to the first transition stage shown in FIGS. 10 and 11, the first transition is performed in the support structure of the right support 22. Nearly the reverse operation is performed when shifting from the stage to the second transition stage. In addition, when the right support device 22 shifts from the first transition stage shown in FIGS. 10 and 11 to the bed state shown in FIGS. 1 to 3 and FIG. The operation opposite to that when the process shifts to the first transition stage is performed.

  The operation of the support structure of the right support device 22 when the right support device 22 shifts from the second transition stage shown in FIGS. 14 and 15 to the first transition stage shown in FIGS. 10 and 11 will be specifically described below. Explained. In this case, when the operator grips the operation portion 45a of the unlocking operation lever 45 by hand and then rotates the operation lever 45 clockwise with the support shaft 49 as a fulcrum, the lock pin 46 is Since the protrusion 47 of the stopper member 37 is overcome as shown in FIG. 13, the lock by the protrusion 47 is released as shown in FIG. 12, and for this reason, the lock of the support frame 41 by the stopper member 37 is released. . Therefore, after that, in the support structure of the right support leg 22, an operation just opposite to the transition from the first transition stage to the second transition stage is performed, and the first transition stage is obtained.

In the first support leg unit used state shown in FIGS. 4 and 5, you may wish to further move outward either or both of the pair of right and left support legs 21, 22 from the center line L ₁ of the delivery table 1 is there. Such a case includes a case where a delivery assistant receives a newborn born from a patient by delivery from the side of the child cradle 17 of the delivery table 1. This is because, in the case of such a childcare assistance, in order to make it easier for the caregiver to enter the middle position between the right or left support legs 21 and 22 and the child cradle 17, either or both of which, such as by further enlarge the opening angle, because it is desirable to further move outward from the center line L _1.

Next, the point to be moved further outside either one or both of the center line L ₁ of the delivery table 1 of the support leg 21, 22, 7, 8A, it will be described with reference to such Figure 8B. In this case, in the first support device use state as the normal support device use state shown in FIGS. 4 and 5, the first support arm portion 52 and the second support arm portion 53 of the support device support arm 20 As shown in FIGS. 7 and 8A, they are arranged substantially in a straight line when seen in a plan view. In this state, the operator grips the operating portion 56a of the lock lever 56 with his / her hand and then uses the support shaft 57 as a fulcrum against the elastic biasing force of the leaf spring 58 so that the counter lever of FIG. It can be rotated in the clockwise direction. Further, by this forward rotation, the engagement portion 56b of the lock lever 56 that has been engaged with the engagement recess 72 of the first support arm portion 52 is detached from the engagement recess 72, so that the first support The lock of the second support arm portion 53 with respect to the arm portion 52 is released. In this unlocked state, the handler operates the second support arm portion 52 with respect to the first support arm portion 52 in the clockwise direction of FIG. 8A with the second support arm portion 53 as a fulcrum. It can be rotated forward by its own weight. For this, as shown in such FIG. 8B, one or both of the support leg 21 and 22, further outward from the center line L _1, can be moved in a substantially horizontal direction, As a special support device use state shown in FIG. 6, a second support device use state is obtained. Such forward rotation of the second support arm portion 53 is performed until the stopper portion 73 of the second support arm portion 53 comes into contact with the stopper portion 74 of the first support arm portion 52. This is performed by the weight of the support arm 53 or the like. Therefore, a caregiver can receive a newborn born from a patient by delivery after entering a position approximately halfway between the right and left supporters 21 and 22 and the child cradle 17.

  When the right or left supporters 21 and 22 are shifted from the second supporter use state shown in FIG. 6 to the first supporter use state shown in FIGS. 4 and 5, the operator uses the supporters 21 and 22. Is held by hand and then moved from outside to inside. In this case, as shown in FIG. 8A, the second support arm portion 53 is substantially straight with the first support arm portion 52, so that the lock lever 56 is supported by the elastic biasing force of the leaf spring 58. It rotates in the clockwise direction shown in FIG. 8B using 57 as a fulcrum, and for this reason, the first supporting leg use state shown in FIG. 8A is obtained.

6 and 8B, the length of the second support arm portion 53 with respect to the length direction of the first support arm portion 52 (in other words, the line segment L ₂ ). The angle θ ₄ (see FIG. 8B) formed by the direction is about 15 ° in a plan view in the illustrated embodiment. The angle θ ₄ is generally in the range of 10 ° to 20 ° in a plan view from the viewpoint of practicality, and more preferably in the range of 12 ° to 18 °. preferable. Further, in the illustrated embodiment, each of the shortest distance between the center line L ₁ and the left or right side of the support leg 21, 22 extending in the longitudinal direction of the delivery table 1, in plan view,
(A) the shortest distance _{L 4} in bed state shown in FIG. 3, about 23cm,
(B) is the shortest distance _{L 5} in the first support leg unit used state shown in FIG. 5, about 29cm, and (c) the shortest distance _{L 6} in the second support leg unit used state shown in FIG. 6, about 36cm,
It is. Then, each of the shortest distance L ₄ ~L ₆ described in paragraph (a) ~ (c) term is generally from the viewpoint of practicality,
(A) the shortest distance _{L 4} is, the scope of 15~30cm (18~28cm),
(B) the shortest distance _{L 5} is, the scope of 18~38cm (22~36cm),
(C) the shortest distance _{L 6} is, the scope of 24~48cm (28~44cm),
Is preferred. The description in parentheses in the above items (A) to (C) is a more preferable numerical range. Furthermore, the ratio of the shortest distance _{L 6} described in section (c) to the shortest distance _{L 4} described above paragraph (a) is about 1.55. The ratio (L ₆ / L ₄ ) is generally preferably in the range of 1.15 to 1.95, and preferably in the range of 1.25 to 1.85, from the viewpoint of practicality. Is more preferable. Also, the (b) the ratio of the shortest distance _{L 6} described in section (c) to the shortest distance _{L 5} according to section is about 1.25. The ratio (L ₆ / L ₅ ) is generally preferably in the range of 1.10 to 1.40, and preferably in the range of 1.15 to 1.35, from the viewpoint of practicality. Is more preferable.

  The operation of the support device support structure other than the operation of the support device support structure described above can be substantially the same as that of the delivery table of Patent Document 1.

  Although one embodiment of the present invention has been described in detail above, the present invention is not limited to this embodiment, and various changes and modifications can be made based on the spirit of the invention described in the claims. Is possible.

  For example, in the above-described embodiment, the present invention is applied to the delivery table 1, but the present invention can also be applied to an examination table such as an obstetrics and gynecology examination table and other medical tables.

  Further, in the above-described embodiment, the handler moves the supporters 21 and 22 in the bed state to the first supporter use state through the first transition stage and the second transition stage in order. It was made to move. However, in order to make the supporters 21 and 22 in the bed state into the first support device use state, the handler makes the support device 21 and 22 use the first support device through various transition stages. be able to. For example, first, the support legs 21 and 22 in the bed state are set to the first transition stage, and then the support arm is shifted from the second transition stage to the first support leg use state. 20 is moved forward to raise the support legs 21 and 22, and then the support legs 21 and 22 are moved to the second shaft in the same manner as in the case of shifting from the first transition stage to the second transition stage. The first support leg use state may be obtained by moving forward and backward with 43 as a fulcrum. This also applies to the case where the support legs 21 and 22 shift from the first support leg use state to the bed state. Further, the forward rotation of the second support arm portion 53 with respect to the first support arm portion 52 is performed in the same manner even in a state other than the use state of the first support device as long as the child cradle 17 is in a position that does not interfere. be able to.

  In the above-described embodiment, the unused state of the left and right supporters 21 and 22 is configured to be the bed state of the delivery table 1, but it is not always necessary to configure in this way. Other states may be used.

  In the above-described embodiment, the lock lever 56 is pivotally supported by the second support arm portion 53. However, the lock lever 56 is pivotally supported by the first support arm portion 52. You can also help.

  Further, in the above-described embodiment, the second support arm portion 53 of the left and right supporters 21 and 22 is reciprocally rotated with respect to the first support arm portion 52 using the support shaft 55 as a fulcrum. . However, a reciprocating operation other than reciprocating rotation (for example, a copying operation using a cam and a cam groove) may be performed. This also applies to the mounting structure of the support arm 20 to the lift base frame 4.

1 Delivery table (medical table)
4 Lifting base frame (second base frame)
20 Support Arm for Supporting Device 21 Left Supporting Device 22 Right Supporting Device 31 Direction Change Mechanism 52 Supporting Arm Portion on the Base End (First Supporting Arm)
53. Support arm portion on the tip end side (second support arm portion)
54 connecting part 56 lock lever (locking means, locking member)
56a Lock release operation part 56b Engagement part 66 Leg resting surface 67 Bed part 68 Substantially flat surface 71 Recess 72 Engagement recess L ₁ Center line L ₅ First shortest distance L ₆ Second shortest distance

Claims (8)

A support for supporting a patient's leg;
A support arm to which this support is attached via a direction changing mechanism;
A base frame on which the support arm is reciprocally mounted;
The support leg is configured to change direction with the direction changing mechanism,
Structure for supporting a pedestal in a medical table, wherein the forward movement from the backward movement position of the pedestal to the forward movement position as a normal use state of the pedestal is performed with the forward movement of the support arm. In
The support arm includes a first support arm portion on the proximal end side, a second support arm portion on the distal end side, and the second support arm portion with respect to the first support arm portion. A connecting portion connected to the first support arm portion so as to be capable of reciprocating,
When the second support arm portion moves forward relative to the first support arm portion, the support device in the forward movement position as the normal support device use state moves the front and rear direction of the medical table. A support structure supporting structure, wherein the support structure is configured to move forward to a second support structure use state that is distant from a center line extending in a plan view. The connecting portion includes a locking means for locking the second support arm portion in a backward movement position with respect to the first support arm portion;
2. The structure according to claim 1, wherein the lock of the second support arm portion with respect to the first support arm portion is released by performing an unlocking operation on the lock means. The support structure for the support described in 1.   3. The support structure supporting structure according to claim 1, wherein the second support arm portion is pivotally supported by the first support arm portion so as to be reciprocally rotatable. The locking means includes a substantially L-shaped lock lever pivotally supported at any one of the first support arm portion and the second support arm portion so that an intermediate portion thereof is rotatable.
An engagement portion provided at one end of the lock lever engages with an engagement recess provided in the other of the first support arm portion and the second support arm portion, whereby the second portion. The support arm portion is configured to be locked with respect to the first support arm portion,
It is configured that the lock of the second support arm portion with respect to the first support arm portion is released by operating a lock release operation portion configured from the other end portion of the lock lever. The support structure for supporting legs according to claim 2 or 3, characterized by the above-mentioned. The return position of the support is the intermediate return position;
The support leg is configured to be able to further return from the intermediate return position to the second return position;
5. The support leg according to claim 1, wherein the support leg is configured to function as an auxiliary base for the bed portion in the second backward movement position. 6. Container support structure.   The forward movement of the support device from the second backward movement position to the forward movement position includes a first turning operation for the support device to change its upper surface, and the support device has a base end thereof. 6. The second direction changing operation of lowering the tip end side with respect to the portion side and the operation of lifting the support device by the forward rotation of the support arm are included. Support structure for the support. In the second backward movement position, the upper surface of the support is configured to be a substantially flat surface so that it can function as the upper surface of the auxiliary table,
After the support device performs the first direction change operation, the upper surface of the support device is configured to be changed from the substantially flat surface to a leg resting surface having a recess. The support structure supporting structure according to claim 6.   The shortest distance seen in a plane between the center line extending in the front-rear direction of the medical table and the support leg is set as the first shortest distance in the normal use of the support leg, and the second The ratio of the second shortest distance to the first shortest distance is in the range of 1.10 to 1.40 when the second shortest distance is used in the use state of the support mechanism. The support structure supporting structure according to any one of claims 1 to 7.

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