Adjustable prone position cushion

Abstract

The present invention relates to an adjustable prone position cushion, which comprises: a base plate and two support plates arranged above the base plate; a height-adjusting device for adjusting the height of the two support plates is arranged at the lower part of the support plate, the height-adjusting device is connected to a width-adjusting device, the width-adjusting device is used to adjust the distance between the two support plates, the width-adjusting device is arranged at the upper part of the base plate, and soft pads are arranged at the upper parts of the two support plates; the height-adjusting device comprises a driving rod and two transmission rods 1 arranged perpendicular to the driving rod, the two transmission rods 1 are respectively arranged under the two support plates, and the cross-section of the driving rod is polygonal; a connecting box is arranged at the connection between the driving rod and the transmission rod 1, a sliding sleeve in the front-rear direction is arranged on the connecting box, the driving rod is slidably arranged in the sliding sleeve, the left and right sides of the connecting box are connected to the transmission rod 1, and a reversing component is arranged in the connecting box.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to an adjustable prone position pad. Background Art

[0002] The prone surgical position is suitable for back spine surgery, cervical spine, lumbar spine, sacral coccyx, percutaneous nephrolithotomy and other surgeries. It is one of the commonly used surgical positions. When performing prone surgery, a position pad needs to be placed between the patient and the operating table to keep the patient in a comfortable position, ensure the success of the operation and the safety of the patient, and reduce the probability of postoperative complications. However, due to the different body shapes of patients of different ages and weights, the existing position pads are all fixed in shape and height, which are not suitable for different patient shapes. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an adjustable prone position cushion with adjustable width and height suitable for patients of different body shapes.

[0004] To solve the above problems, the technical solution adopted by the present invention is:

[0005] An adjustable prone position cushion, comprising: a bottom plate, a height adjustment device, a width adjustment device, two support plates and two soft cushions; the height adjustment device and the width adjustment device are both arranged above the bottom plate, the height adjustment device and the width adjustment device are respectively used to adjust the height of the two support plates and the distance between the two support plates, and the two soft cushions are respectively arranged on the upper parts of the two support plates;

[0006] The height adjustment device comprises a driving rod, two transmission rods 1 arranged side by side, and four height adjustment components; the driving rod is arranged vertically with the transmission rod 1, the four height adjustment components are respectively located at the two ends of the two transmission rods 1, and the upper part of the height adjustment component is connected to the support plate; the cross section of the driving rod is a polygon;

[0007] A connecting box is provided at the connection between the driving rod and the transmission rod, and a sliding sleeve is provided on the connecting box and slides with the driving rod. The sliding sleeve is used for when the two transmission rods are close to or away from each other, the transmission rod drives the connecting box to slide on the driving rod, and when the driving rod rotates, the sliding sleeve is driven to rotate; a reversing assembly is provided in the connecting box, and the reversing assembly is connected to the sliding sleeve, and the reversing assembly is used to transmit the rotation of the driving rod to the transmission rod.

[0008] As a further improvement of the present invention, both ends of the transmission rod 1 are provided with a worm 1;

[0009] The height adjustment component includes a worm wheel 1 and an adjustment rod. The worm wheel 1 is meshed with the worm screw 1. The inner hole of the worm wheel 1 is threadedly connected to the adjustment rod. The upper part of the adjustment rod is connected to the support plate.

[0010] As a further improvement of the present invention, the reversing assembly includes a second worm gear arranged on the sliding sleeve and a second worm wheel arranged on the first transmission rod and meshing with the second worm gear.

[0011] As a further improvement of the present invention, the transmission rod 1 comprises a first part and a second part which are separated from each other, and the worm 1 on the first part and the worm 1 on the second part have opposite rotation directions;

[0012] The reversing assembly includes a bevel gear 1 arranged on the sliding sleeve, and a bevel gear 2 and a bevel gear 3 respectively arranged on the first part and the second part and meshing with the bevel gear 1.

[0013] As a further improvement of the present invention, the width adjustment device includes two screw rods arranged at the upper parts of both ends of the bottom plate and parallel to the driving rod, and the two screw rods are connected by a transmission assembly;

[0014] The screw rod comprises a first threaded portion and a second threaded portion with opposite rotation directions, and the first threaded portion and the second threaded portion are both provided with adjustment blocks matched therewith; the upper portion of the adjustment block is provided with a groove, and the lower end of the adjustment rod is inserted into the groove.

[0015] As a further improvement of the present invention, the transmission assembly includes a transmission rod 2, a worm gear 3 is provided at both ends of the transmission rod 2, and a worm wheel 3 that matches the worm gear 3 is provided on the screw.

[0016] As a further improvement of the present invention, the transmission assembly includes a transmission belt arranged between the two screw rods.

[0017] As a further improvement of the present invention, a second rocker is provided at the end of any of the screw rods.

[0018] As a further improvement of the present invention, a plurality of limiting grooves are provided on the upper portion of the adjusting block, and a limiting rod matching with the limiting grooves is provided on the bottom of the supporting plate.

[0019] As a further improvement of the present invention, the soft pad includes a vertical pad and two horizontal pads arranged on the upper part and the lower part of the vertical pad.

[0020] The beneficial effects of adopting the above technical solution are:

[0021] The present invention adjusts the distance between the two support plates and the distance between the two cushions by providing a width adjustment device, and adjusts the height of the two support plates and the height of the cushions by providing a height adjustment device, so that the width and height of the cushions are adapted to the patient's body shape.

[0022] Moreover, in order to enable the height-adjusting device to work on the basis of the width-adjusting device, a driving rod, a connecting box and a transmission rod are provided. The cross-section of the driving rod is a polygon. A sliding sleeve is provided on the connecting box. The sliding sleeve can slide on the driving rod. A reversing assembly is provided in the connecting box. When the width-adjusting device is in effect, the sliding sleeve drives the connecting box to slide on the driving rod. When the driving rod rotates, the sliding sleeve is driven to rotate, and the rotation is transmitted to the transmission rod through the reversing assembly, and then the height of the support rod is adjusted through the worm gear, the worm wheel and the adjusting rod.

[0023] In the present invention, the width-adjusting device comprises two screws, the two ends of the screws have opposite rotation directions, the screws comprise a first threaded portion and a second threaded portion with opposite rotation directions, and the first threaded portion and the second threaded portion are both provided with adjustment blocks; the two screws are made to rotate synchronously, and the adjustment blocks thereon approach or move away from each other. Since the upper part of the adjustment block is connected to the support plate through the height-adjusting device, the distance between the two cushions can be adjusted to accommodate patients of different body shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of a first structure including a soft cushion and a width-adjusting device according to the present invention.

[0026] Figure 2 It is a schematic diagram of the first structure of the present invention which does not include a cushion and a width-adjusting device.

[0027] Figure 3 It is a structural schematic diagram of the reversing component of the present invention.

[0028] Figure 4 It is a second structural schematic diagram of the reversing component of the present invention.

[0029] Figure 5 It is a second structural schematic diagram of the width adjustment device of the present invention.

[0030] Among them: 1 bottom plate, 2 support plate, 3 cushion, 4 height adjustment device, 4-1 drive rod, 4-2 transmission rod 1, 4-3 connecting box, 4-4 sliding sleeve, 4-5 worm gear 1, 4-6 worm wheel 1, 4-7 adjusting rod, 4-8 worm gear 2, 4-9 worm wheel 2, 4-10 first part, 4-11 second part, 4-12 bevel gear 1, 4-13 bevel gear 2, 4-14 bevel gear 3, 4-15 rocker arm 1, 5 width adjustment device, 5-1 screw rod, 5-2 first threaded part, 5-3 second threaded part, 5-4 adjusting block, 5-5 limiting groove, 5-6 limiting rod, 5-7 transmission rod 2, 5-8 worm gear 3, 5-9 worm wheel 3, 5-10 rocker arm 2, 5-11 bevel gear 4, 5-12 bevel gear 5. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the invention is clearly and completely described below in conjunction with specific embodiments. It should be understood that the terms "center", "vertical", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0032] like Figure 1-Figure 5 The adjustable prone position cushion shown includes: a base plate 1, a height adjustment device 4, a width adjustment device 5, two support plates 2 and two soft pads 3; the height adjustment device 4 and the width adjustment device are both arranged above the base plate 1, and the height adjustment device 4 and the width adjustment device are respectively used to adjust the height of the two support plates 2 and the distance between the two support plates 2, and the two soft pads 3 are respectively arranged on the upper part of the two support plates 2; further, the soft pad 3 includes a vertical pad and two horizontal pads arranged on the upper and lower parts of the vertical pad. When in use, the horizontal pads of the two soft pads 3 are opposite to each other, and the two soft pads 3 form a tic-tac-toe shape, avoiding the head and neck on the upper part and the perineum on the lower part. In order to make the patient more comfortable when using it, the upper part of the soft pad 3 is arc-shaped, and the two sides of the soft pad 3 extend downward to cover the support plate 2.

[0033] The height-adjusting device 4 comprises a driving rod 4-1, two transmission rods 4-2 arranged side by side and four height-adjusting components; the driving rod 4-1 is vertically arranged with the transmission rod 4-2, the four height-adjusting components are respectively located at the two ends of the two transmission rods 4-2, and the upper part of the height-adjusting component is connected with the support plate 2; the cross-section of the driving rod 4-1 is polygonal; a connecting box 4-3 is provided at the connection between the driving rod 4-1 and the transmission rod, and a sliding sleeve 4-4 is provided on the connecting box 4-3 for slidingly cooperating with the driving rod 4-1, and the sliding sleeve 4-4 is used for when the two transmission rods 4-2 are close to or away from each other, the transmission rod 4-2 drives the connecting box 4-3 to slide on the driving rod 4-1, and when the driving rod 4-1 rotates, the sliding sleeve 4-4 is driven to rotate; a reversing component is provided in the connecting box 4-3, and the reversing component is connected with the sliding sleeve 4-4, and the reversing component is used for transmitting the rotation of the driving rod 4-1 to the transmission rod 4-2.

[0034] In order to prevent the driving rod 4-1 from driving the sleeve 4-4 to rotate while driving the connecting box 4-3 to rotate, the sleeve 4-4 is arranged inside the connecting box 4-3, and the two ends of the sleeve 4-4 are in contact with the inner wall of the connecting box 4-3 but the friction of the contact surface is small. When the connecting box 4-3 moves along the axial direction of the driving rod 4-1, the sleeve 4-4 can slide on the driving rod 4-1. When the driving rod 4-1 rotates, the sleeve 4-4 rotates with the driving rod 4-1, and the position of the connecting box 4-3 remains unchanged; or the sleeve 4-4 passes through the front and rear walls of the connecting box 4-3, and a rolling bearing is provided at the position where the sleeve 4-4 is connected to the connecting box 4-3. The rolling bearing is tightly matched with the connecting box 4-3. When the sleeve 4-4 rotates, the inner ring of the rolling bearing rotates accordingly, but the outer ring does not rotate, thereby preventing the connecting box 4-3 from rotating. The driving shaft can be set as a spline shaft, and the sliding sleeve 4-4 is provided with a hole matching the spline inside, so that the sliding sleeve 4-4 can be conveniently rotated with the driving shaft.

[0035] The embodiment of the present invention does not specifically limit the structural form of the reversing assembly, and only needs to ensure that the requirements are met, including but not limited to the following two types:

[0036] The first type, the reversing assembly includes a worm 4-8 disposed on the sleeve 4-4 and a worm wheel 4-9 disposed on the transmission rod 4-2 and meshing with the worm 4-8. When the drive shaft rotates, the sleeve 4-4 rotates accordingly. Since the sleeve 4-4 is provided with a worm 4-8, the worm wheel 4-9 on the transmission rod 4-2 meshes with the worm 4-8, and transmits the rotation to the transmission rod 4-2. The transmission rod 4-2 transmits the rotation to the worm wheel 4-6 through the worm 4-5, and drives the adjusting rod 4-7 threadedly connected to the inner hole of the worm wheel 4-6 to rise and fall. Figure 3 shown.

[0037] The second type, the transmission rod 4-2 includes a first part 4-10 and a second part 4-11 that are separated, the reversing assembly includes a bevel gear 4-12 arranged on the sleeve 4-4, and a bevel gear 4-13 and a bevel gear 4-14 that are respectively arranged on the first part 4-10 and the second part 4-11 and meshed with the bevel gear 4-12. Since the bevel gear 4-13 and the bevel gear 4-14 are located on both sides of the bevel gear 4-12, the bevel gear 4-13 and the bevel gear 4-14 rotate in opposite directions. In order to make the adjustment rods 4-7 on both sides of the transmission rod 4-2 rise and fall at the same time, the worm 4-5 on the first part 4-10 and the worm 4-5 on the second part 4-11 rotate in opposite directions. Figure 4 shown.

[0038] In this embodiment, both ends of the transmission rod 4-2 are provided with worms 4-5; the height adjustment assembly includes a worm wheel 4-6 and an adjustment rod 4-7, the worm wheel 4-6 is meshed with the worm wheel 4-5, the inner hole of the worm wheel 4-6 is threadedly connected with the adjustment rod 4-7, and the upper part of the adjustment rod 4-7 is connected to the support plate 2. When the transmission rod 4-2 rotates, the worms 4-5 at both ends thereof drive the worm wheel 4-6 to rotate, so that the adjustment rod 4-7 in the inner hole of the worm wheel 4-6 moves up and down, thereby achieving the purpose of adjusting the height of the support plate 2.

[0039] Further, the width adjustment device 5 includes two screw rods 5-1 arranged at the upper part of both ends of the bottom plate 1 and parallel to the driving rod 4-1, and the two screw rods 5-1 are connected by a transmission assembly; the screw rod 5-1 includes a first threaded portion 5-2 and a second threaded portion 5-3 with opposite rotation directions, and the first threaded portion 5-2 and the second threaded portion 5-3 are both provided with an adjustment block 5-4 matched therewith; the upper part of the adjustment block 5-4 is provided with a groove, and the lower end of the adjustment rod 4-7 is inserted into the groove. Since the adjustment block 5-4 is connected to the adjustment rod 4-7, a support rod is provided on the upper part of the adjustment rod 4-7. When the screw rod 5-1 is driven to rotate, the adjustment blocks 5-4 on the first threaded portion 5-2 and the second threaded portion 5-3 are close to or away from each other, so that the two support rods are close to or away from each other, so as to adapt to patients of different body shapes. Further, the upper part of the adjustment block 5-4 is provided with a plurality of limit grooves 5-5, and the bottom of the support plate 2 is provided with a limit rod 5-6 matched with the limit grooves 5-5. Preferably, the number of the limiting grooves 5 - 5 is four.

[0040] The embodiment of the present invention does not specifically limit the structural form of the transmission assembly, and only needs to ensure that the requirements are met, including but not limited to the following two types:

[0041] The first type, the transmission assembly includes a transmission rod 5-7, worms 5-8 are provided at both ends of the transmission rod 5-7, and a worm wheel 5-9 is provided on the screw 5-1 to match the worm 5-8. By driving one screw 5-1, the transmission rod 5-7 is used to transmit power to the other screw 5-1, so that the two screws 5-1 rotate synchronously, or the transmission rod 5-7 is directly driven to rotate, and the rotation of the transmission rod 5-7 is transmitted to the two screws 5-1, so that the two screws 5-1 rotate synchronously.

[0042] In order to achieve the purpose of directly driving the transmission rod 2 5-7, a rocker 2 5-10 is also provided; the end of the rocker 2 5-10 is provided with a bevel gear 4 5-11, and the transmission rod 2 5-7 is provided with a bevel gear 5 5-12 meshing with the bevel gear 4 5-11, such as Figure 5 shown.

[0043] The second type is that the transmission assembly includes a transmission belt or chain arranged between the two screw rods 5-1. By driving one screw rod 5-1, the transmission rod 2 5-7 transmits power to the other screw rod 5-1, so that the two screw rods 5-1 rotate synchronously.

[0044] For the convenience of driving, in the above two transmission assembly structures, a rocker 2 5-10 is provided at the end of any of the screw rods 5-1. For the convenience of driving the driving rod 4-1, a rocker 1 4-15 is provided at the end of the driving rod 4-1.

[0045] Of course, in the embodiment described above, bearings are provided on the screw rod 5-1, the drive rod 4-1 and the transmission rod 4-2. The screw rod 5-1 and the drive rod 4-1 are both arranged above the base plate 1 through supports, and the transmission rod 4-2 is arranged above the adjustment block 5-4 through a support (not shown in the figure).

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable prone position pad, characterized in that: It includes: A base plate (1), a height adjustment device (4), a width adjustment device (5), two support plates (2) and two soft pads (3); the height adjustment device (4) and the width adjustment device are both arranged above the base plate (1); the height adjustment device (4) and the width adjustment device are respectively used to adjust the height of the two support plates (2) and the distance between the two support plates (2); the two soft pads (3) are respectively arranged on the upper parts of the two support plates (2); The height-adjusting device (4) comprises a driving rod (4-1), two transmission rods (4-2) arranged side by side, and four height-adjusting components; the driving rod (4-1) and the transmission rod (4-2) are arranged vertically, the four height-adjusting components are respectively located at the two ends of the two transmission rods (4-2), and the upper part of the height-adjusting component is connected to the support plate (2); the cross-section of the driving rod (4-1) is a polygon; A connection box (4-3) is provided at the connection point between the driving rod (4-1) and the transmission rod, and a sliding sleeve (4-4) is provided on the connection box (4-3) and is slidably matched with the driving rod (4-1). The sliding sleeve (4-4) is used for when the two transmission rods (4-2) are close to or away from each other, the transmission rod (4-2) drives the connection box (4-3) to slide on the driving rod (4-1), and when the driving rod (4-1) rotates, it drives the sliding sleeve (4-4) to rotate; a reversing assembly is provided in the connection box (4-3), and the reversing assembly is connected to the sliding sleeve (4-4), and the reversing assembly is used to transmit the rotation of the driving rod (4-1) to the transmission rod (4-2); Both ends of the transmission rod 1 (4-2) are provided with a worm gear 1 (4-5); the height adjustment assembly comprises a worm wheel 1 (4-6) and an adjustment rod (4-7); the worm wheel 1 (4-6) is meshed with the worm gear 1 (4-5); the inner hole of the worm wheel 1 (4-6) is threadedly connected to the adjustment rod (4-7); the upper part of the adjustment rod (4-7) is connected to the support plate (2); The width adjustment device (5) comprises two screw rods (5-1) arranged at the upper parts of both ends of the bottom plate (1) and parallel to the driving rod (4-1), and the two screw rods (5-1) are connected via a transmission assembly; The screw rod (5-1) comprises a first threaded portion (5-2) and a second threaded portion (5-3) having opposite rotation directions; the first threaded portion (5-2) and the second threaded portion (5-3) are both provided with an adjustment block (5-4) matching therewith; the upper portion of the adjustment block (5-4) is provided with a groove, and the lower end of the adjustment rod (4-7) is inserted into the groove; The screw rod (5-1), the driving rod (4-1) and the transmission rod 1 (4-2) are all provided with bearings.

2. The adjustable prone position cushion according to claim 1, characterized in that: The reversing assembly comprises a second worm (4-8) arranged on the sliding sleeve (4-4) and a second worm wheel (4-9) arranged on the first transmission rod (4-2) and meshing with the second worm (4-8).

3. The adjustable prone position cushion according to claim 1, characterized in that: The transmission rod 1 (4-2) comprises a first part (4-10) and a second part (4-11) which are separated from each other, and the worm gear 1 (4-5) on the first part (4-10) and the worm gear 1 (4-5) on the second part (4-11) have opposite rotation directions; The reversing assembly comprises a bevel gear 1 (4-12) arranged on the sliding sleeve (4-4), and a bevel gear 2 (4-13) and a bevel gear 3 (4-14) respectively arranged on the first part (4-10) and the second part (4-11) and meshing with the bevel gear 1 (4-12).

4. The adjustable prone position cushion according to claim 1, characterized in that: The transmission assembly comprises a second transmission rod (5-7), two ends of the second transmission rod (5-7) are provided with a third worm (5-8), and the screw rod (5-1) is provided with a third worm wheel (5-9) matched with the third worm (5-8).

5. The adjustable prone position cushion according to claim 1, characterized in that: The transmission assembly comprises a transmission belt arranged between the two screw rods (5-1).

6. An adjustable prone position cushion according to claim 4 or 5, characterized in that: A second rocker (5-10) is provided at the end of any one of the screw rods (5-1).

7. The adjustable prone position cushion according to claim 1, characterized in that: The upper portion of the adjustment block (5-4) is provided with a plurality of limit slots (5-5), and the bottom portion of the support plate (2) is provided with a limit rod (5-6) that matches the limit slots (5-5).

8. The adjustable prone position cushion according to claim 1, characterized in that: The soft pad (3) comprises a vertical pad and two horizontal pads arranged on the upper part and the lower part of the vertical pad.

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