Arm supporting device

Abstract

The utility model provides an arm supporting device, and relates to the field of supporting devices. The arm supporting device comprises a base, a driving motor, a self-locking worm, a worm gear, a transmission mechanism and a supporting piece. The driving motor is mounted at the top of the base, the self-locking worm is connected with an output shaft of the driving motor, the worm gear is rotatably matched with the base, and the self-locking worm is meshed with the worm gear; the worm gear is connected with the supporting piece through a transmission mechanism. The driving motor is used for driving the self-locking worm to rotate so as to drive the worm gear to rotate and further drive the supporting piece to ascend and descend through the transmission mechanism. The device can improve the operation stability, is not easy to damage, has long service life and low cost, automatically adjusts the height, and is convenient and flexible to operate.

Description

Technical Field

[0001] The utility model relates to the field of supporting devices, in particular to an arm supporting device. Background Art

[0002] In some scenarios, such as surgical treatment, the surgeon often has to be in a state of cantilevered arms or wrists. Due to the long operation time, the surgeon's arms and wrists are easily fatigued, which will reduce the accuracy and efficiency of the doctor's surgery. In order to improve this situation, the prior art discloses a support frame specially used by the surgeon, which can support the surgeon's arms, thereby reducing the fatigue of the surgeon's arms and wrists.

[0003] The inventor has found that the existing support frame has at least the following disadvantages:

[0004] There are two types of support frames. One is a fixed support frame, which cannot be adjusted in height and is difficult to adapt to operators of different heights. The other is a lifting support frame, which drives the support plate to rise and fall through a traction belt. The traction belt rubs against the drive wheel for a long time, is easily worn and damaged, has a short service life, and manually adjusts the length of the traction belt, which is inconvenient to operate. Utility Model Content

[0005] The utility model aims to provide an arm support device, which can improve operational stability, is not easily damaged, has a long service life, has low cost, automatically adjusts height, and is convenient and flexible to operate.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In a first aspect, the utility model provides an arm support device for supporting a surgeon's arm during a neurosurgery procedure, the arm support device comprising:

[0008] A base, a driving motor, a self-locking worm, a worm wheel, a transmission mechanism and a support member; the driving motor is installed on the top of the base, the self-locking worm is connected to the output shaft of the driving motor, the worm wheel is rotatably matched with the base, and the self-locking worm is meshed with the worm wheel; the worm wheel is connected to the support member through the transmission mechanism; the driving motor is used to drive the self-locking worm to rotate, thereby driving the worm wheel to rotate, and then driving the support member to rise and fall through the transmission mechanism.

[0009] In an optional embodiment, the transmission mechanism includes a transmission gear and a transmission rack, the transmission gear is mounted on the worm gear and is coaxially arranged with the worm gear, the transmission rack is slidably matched with the base, the transmission gear is meshed with the transmission rack, and the support member is mounted on the transmission rack.

[0010] Based on the above scheme, the transmission gear and the transmission rack cooperate, the transmission is stable and the transmission efficiency is high. When the drive motor is started, the torque is transmitted to the transmission gear through the worm gear mechanism, and the transmission gear rotates around its own axis relative to the base, thereby driving the transmission rack to rise and fall relative to the base, realizing the height adjustment of the support, and the operation is flexible.

[0011] In an optional embodiment, the transmission mechanism also includes a transmission shaft, which is arranged to pass through the center of the worm gear and is fixedly connected to the worm gear, the transmission gear is sleeved on the outside of the transmission shaft and is fixedly connected to the transmission shaft, and the transmission shaft is rotatably matched with the base.

[0012] Based on the above scheme, the worm wheel and the transmission gear are connected by the transmission shaft, the improvement of the structure of the worm wheel and the transmission gear is small, the processing difficulty of the worm wheel and the transmission gear is reduced, and the processing and manufacturing cost is reduced. In addition, the worm wheel and the transmission gear are axially positioned by the transmission shaft, the coaxiality of the worm wheel and the transmission gear is high, and the rotation is more stable.

[0013] In an optional embodiment, the worm gear is connected to the transmission shaft via a spline, and the transmission gear is connected to the transmission shaft via a spline.

[0014] Based on the above scheme, the installation structure of the worm gear and the transmission shaft, as well as the transmission gear and the transmission shaft is simple, the assembly efficiency is high, and the transmission is stable and reliable.

[0015] In an optional embodiment, a guide slot is provided on the base, and the transmission rack is slidably engaged with the guide slot.

[0016] Based on the above scheme, the transmission rack is guided by the guide groove, the position of the transmission rack is firm, and the sliding direction is determined, the sliding is stable and reliable, which is conducive to controlling the height of the support.

[0017] In an optional embodiment, a guide wheel is provided in the guide slot, and the transmission rack is in contact with the guide wheel.

[0018] Based on the above scheme, the transmission rack is in contact with the guide wheel, the friction between the transmission rack and the guide wheel is small, the wear of the transmission rack is small when sliding, and the sliding is more flexible.

[0019] In an optional embodiment, the support member is connected to the transmission rack by bolts, screws or pins.

[0020] Based on the above solution, the connection method between the support member and the transmission rack is simple, and the two are easy to disassemble, which is conducive to replacement and other operations, and does not require overall replacement, thereby reducing costs.

[0021] In an optional embodiment, the support member includes a connected mounting rod, a positioning plate and a positioning airbag, the mounting rod is connected to the transmission rack, the plate surface of the positioning plate defines a positioning groove, and the positioning airbag is disposed in the positioning groove.

[0022] Based on the above scheme, when in use, the operator's arm can be placed in the positioning airbag, and by controlling the inflation degree of the positioning airbag, the wrapping area of ​​the positioning airbag and the operator's arm can be adjusted to improve the support effect.

[0023] In an optional embodiment, the mounting rod includes a first rod body and a second rod body, the first rod body is fixedly connected to the transmission rack, the second rod body is rotatably matched with the first rod body, and the positioning plate is mounted on the second rod body.

[0024] Based on the above solution, when in use, by rotating the second rod body, the positioning plate can be driven to rotate, thereby fine-tuning the position of the positioning plate to facilitate better contact with the operator's arm.

[0025] In an optional embodiment, a rotating hole is provided on the first rod body, a bearing is provided in the rotating hole, and the second rod body is inserted into the inner ring of the bearing; a locking screw is threaded on the first rod body, and the locking screw is used to abut against the outer peripheral surface of the second rod body to limit the rotation of the second rod body relative to the first rod body.

[0026] Based on the above scheme, when adjusting the angle, first loosen the locking screw, then rotate the second rod body relative to the first rod body, and after the rotation is completed, use the locking screw to lock the second rod body on the first rod body, thereby locking the angle of the positioning plate, which is safer to use.

[0027] The beneficial effects of the embodiments of the utility model are:

[0028] In summary, the arm support device provided in this embodiment, when in use, uses the base to position the entire device on the ground, and the position of the entire device can be adjusted according to the needs, and it is flexible to use. When the operator needs to use the support member to support and position the arm, the height of the support member is adjusted according to the height of the operator, so that it can adapt to the use of operators of different heights, and has a wide range of applications. Specifically, the drive motor is operated, and the drive motor can drive the self-locking worm to rotate forward or reverse. For example, when the self-locking worm rotates forward, it can drive the support member to rise through the transmission mechanism, and when the self-locking worm reverses, it can drive the support member to drop through the transmission mechanism. In this way, the height of the support member can be automatically adjusted according to the needs, which saves time and effort and is convenient to operate. In addition, due to the matching structure of the self-locking worm and the worm wheel, when the height of the support member is adjusted, self-locking can be achieved, that is, the height of the support member will not change automatically, the stability is high, and there is no need to design additional structural parts to lock the support member, which simplifies the structure and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of an arm support device according to an embodiment of the present utility model from one perspective;

[0031] Figure 2 A schematic diagram of an arm support device according to an embodiment of the utility model from another perspective;

[0032] Figure 3 Schematic diagram of a mounting rod according to an embodiment of the utility model.

[0033] icon:

[0034] 100-base; 101-guide slot; 110-guide wheel; 200-drive motor; 300-self-locking worm; 400-worm wheel; 500-transmission mechanism; 510-transmission gear; 520-transmission rack; 530-transmission shaft; 600-support member; 610-mounting rod; 611-first rod body; 612-second rod body; 613-positioning bearing; 614-locking screw; 620-positioning plate; 630-positioning airbag. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the prior art, for example, the patent number CN213310432U disclosed in the prior art discloses a neurosurgery arm support device, which can drive the slide cylinder to slide through the cooperation of the traction belt and the fixed pulley by rotating the rotating cylinder, thereby controlling the lifting and lowering of the support plate by the lifting and lowering of the slide cylinder, thereby supporting the arms of surgeons of different heights. Since the traction belt is used for height adjustment, the traction belt and the fixed pulley are in long-term friction, the wear rate is fast, and the service life is short; in addition, it is time-consuming and labor-intensive to rotate the rotating cylinder manually, and the efficiency is low; after the height of the support plate is adjusted, it has a downward trend under the action of the gravity of the slide cylinder, and cannot be self-locked at the set height. It needs to be locked by the stop pin on the control box, which has a complex structure and is inconvenient to operate.

[0042] In view of this, the designer provides an arm support device for supporting the surgeon's arm during neurosurgery. It has a high degree of automation, is flexible and convenient to adjust, saves time and effort, has a self-locking function, and is stable and reliable.

[0043] It should be noted that the arm support device is not limited to supporting surgeons undergoing neurosurgery, but can also be used in other situations where arm support is required.

[0044] Please combine Figure 1-Figure 2 In this embodiment, the arm support device includes a base 100, a driving motor 200, a self-locking worm 300, a worm wheel 400, a transmission mechanism 500 and a support member 600; the driving motor 200 is installed on the top of the base 100, the self-locking worm 300 is connected to the output shaft of the driving motor 200, the worm wheel 400 is rotatably matched with the base 100, and the self-locking worm 300 is meshed with the worm wheel 400; the worm wheel 400 is connected to the support member 600 through the transmission mechanism 500; the driving motor 200 is used to drive the self-locking worm 300 to rotate, thereby driving the worm wheel 400 to rotate, and then driving the support member 600 to rise and fall through the transmission mechanism 500.

[0045] It can be known from the above records that when using the arm support device, the base 100 is used to position the entire device on the ground. The position of the base 100 is adjustable, so as to adjust the position of the entire device as needed. When the operator needs to use the support member 600 to support and position the arm, the height of the support member 600 is adjusted according to the height of the operator, so that it can adapt to the use of operators of different heights and has a wide range of applications. Specifically, the drive motor 200 is operated, and the drive motor 200 can drive the self-locking worm 300 to rotate forward or reverse. For example, when the self-locking worm 300 rotates forward, the support member 600 can be driven to rise through the transmission mechanism 500. When the self-locking worm 300 rotates reversely, the support member 600 can be driven to descend through the transmission mechanism 500. In this way, the height of the support member 600 can be automatically adjusted according to demand, which saves time and effort and is convenient to operate. In addition, due to the matching structure of the self-locking worm 300 and the worm wheel 400, when the height of the support member 600 is adjusted, self-locking can be achieved, that is, the height of the support member 600 will not change automatically, and the stability is high. There is no need to design additional structural parts to lock the support member 600, which simplifies the structure and reduces costs.

[0046] It should be understood that a brakeable running wheel can be provided at the bottom of the base 100. When the position needs to be adjusted, the running wheel is not braked and can move flexibly. When the running wheel moves to the right position, the running wheel can be locked. The structure of the running wheel brake can refer to the existing known technology and is not specifically limited in this embodiment.

[0047] In this embodiment, optionally, the transmission mechanism 500 includes a transmission gear 510, a transmission rack 520 and a transmission shaft 530. The transmission shaft 530 is set to penetrate the center of the worm wheel 400 and is fixedly connected to the worm wheel 400. The transmission gear 510 is sleeved outside the transmission shaft 530 and is fixedly connected to the transmission shaft 530. The two ends of the transmission shaft 530 are rotatably matched with the base 100 through bearings. The transmission gear 510, the worm wheel 400 and the transmission shaft 530 are coaxially arranged, and the worm wheel 400 and the transmission gear 510 are connected by the transmission shaft 530. The improvement of the structure of the worm wheel 400 and the transmission gear 510 is small, the processing difficulty of the worm wheel 400 and the transmission gear 510 is reduced, and the processing and manufacturing cost is reduced. In addition, the worm wheel 400 and the transmission gear 510 are axially positioned through the transmission shaft 530, the coaxiality of the worm wheel 400 and the transmission gear 510 is high, and the rotation is more stable. The transmission rack 520 is slidably matched with the base 100 , the transmission gear 510 is meshed with the transmission rack 520 , and the support member 600 is installed on the transmission rack 520 .

[0048] It should be understood that the transmission mechanism 500 is set as a gear transmission assembly, which has stable transmission and high transmission efficiency. When the drive motor 200 is started, the torque is transmitted to the transmission gear 510 through the worm gear 400, and the transmission gear 510 rotates around its own axis relative to the base 100, thereby driving the transmission rack 520 to rise and fall relative to the base 100, thereby achieving height adjustment of the support member 600, and the operation is flexible.

[0049] Optionally, the worm wheel 400 is connected to the transmission shaft 530 via a spline, and the transmission gear 510 is connected to the transmission shaft 530 via a spline. The installation structure of the worm wheel 400 and the transmission shaft 530 and the transmission gear 510 and the transmission shaft 530 is simple, the assembly efficiency is high, and the transmission is stable and reliable.

[0050] Please combine Figure 1 In this embodiment, optionally, a guide slot 101 is provided on the base 100, and the transmission rack 520 is slidably matched with the guide slot 101. The transmission rack 520 is guided by the guide slot 101, the position of the transmission rack 520 is firm, and the sliding direction is determined, the sliding is stable and reliable, which is conducive to controlling the height of the support member 600.

[0051] In order to reduce friction, a guide wheel 110 is provided in the guide slot 101 , and the transmission rack 520 is in contact with the guide wheel 110 .

[0052] In some embodiments, the support member 600 is optionally detachably connected to the transmission rack 520 by bolts, screws, or pins. The connection between the support member 600 and the transmission rack 520 is simple, and the two are easy to disassemble, which is conducive to replacement and other operations. When the support member 600 is damaged, it does not need to be replaced as a whole, which reduces costs.

[0053] In this embodiment, optionally, the support member 600 includes a connected mounting rod 610, a positioning plate 620 and a positioning airbag 630, wherein the mounting rod 610 is connected to the transmission rack 520, and the plate surface of the positioning plate 620 defines a positioning groove, and the positioning airbag 630 is disposed in the positioning groove. When in use, the operator's arm can be placed in the positioning airbag 630, and by controlling the inflation degree of the positioning airbag 630, the wrapping area of ​​the positioning airbag 630 and the operator's arm can be adjusted, thereby improving the support effect.

[0054] It should be understood that an air pump can be installed on the positioning plate 620, and the air pump is connected to the positioning airbag 630, and the air pump can inflate the airbag. A valve can be provided on the positioning airbag 630, and the air can be deflated after the valve is opened, thereby adjusting the inflation amount of the positioning airbag 630 to suit different surgeons' arm supports.

[0055] Please combine Figure 3 Optionally, the mounting rod 610 includes a first rod body 611 and a second rod body 612, the first rod body 611 is fixedly connected to the transmission rack 520, the second rod body 612 is rotatably matched with the first rod body 611, and the positioning plate 620 is mounted on the second rod body 612. When in use, the positioning plate 620 can be driven to rotate by rotating the second rod body 612, thereby fine-tuning the position of the positioning plate 620, which is conducive to better contact with the operator's arm.

[0056] Optionally, a rotation hole is provided on the first rod body 611, a positioning bearing 613 is provided in the rotation hole, and the second rod body 612 is inserted into the inner ring of the positioning bearing 613; a locking screw 614 is threaded on the first rod body 611, and the locking screw 614 is used to abut against the outer peripheral surface of the second rod body 612 to limit the rotation of the second rod body 612 relative to the first rod body 611. When adjusting the angle, first loosen the locking screw 614, and then rotate the second rod body 612 relative to the first rod body 611. After the rotation is completed, the locking screw 614 is used to lock the second rod body 612 on the first rod body 611, thereby locking the angle of the positioning plate 620, which is safer to use.

[0057] It should be noted that the base 100 can be configured as a shell structure, the top of the base 100 is open, and an openable cover is installed on the top. By opening the cover, it is convenient to inspect or repair the components inside the base 100.

[0058] The arm support device provided in this embodiment can automatically drive the self-locking worm 300 to rotate by starting the drive motor 200, thereby transmitting the torque to the transmission rack 520 through the worm wheel 400 and the transmission gear 510 in sequence, thereby driving the support member 600 to rise and fall, with a high degree of automation and high efficiency; and can achieve self-locking, stable and reliable.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An arm support device for supporting the arm of a surgeon during neurosurgery, characterized in that: The arm support device comprises: A base (100), a driving motor (200), a self-locking worm (300), a worm wheel (400), a transmission mechanism (500) and a support member (600); the driving motor (200) is installed on the top of the base (100), the self-locking worm (300) is connected to the output shaft of the driving motor (200), the worm wheel (400) is rotatably matched with the base (100), and the self-locking worm (300) is meshed with the worm wheel (400); the worm wheel (400) is connected to the support member (600) through the transmission mechanism (500); the driving motor (200) is used to drive the self-locking worm (300) to rotate, thereby driving the worm wheel (400) to rotate, and then driving the support member (600) to rise and fall through the transmission mechanism (500).

2. The arm support device according to claim 1, characterized in that: The transmission mechanism (500) comprises a transmission gear (510) and a transmission rack (520); the transmission gear (510) is mounted on the worm gear (400) and is coaxially arranged with the worm gear (400); the transmission rack (520) is slidably matched with the base (100); the transmission gear (510) is meshed with the transmission rack (520); and the support member (600) is mounted on the transmission rack (520).

3. The arm support device according to claim 2, characterized in that: The transmission mechanism (500) further comprises a transmission shaft (530), wherein the transmission shaft (530) is arranged to pass through the center of the worm gear (400) and is fixedly connected to the worm gear (400), the transmission gear (510) is sleeved on the outside of the transmission shaft (530) and is fixedly connected to the transmission shaft (530), and the transmission shaft (530) is rotatably matched with the base (100).

4. The arm support device according to claim 3, characterized in that: The worm wheel (400) is connected to the transmission shaft (530) via a spline, and the transmission gear (510) is connected to the transmission shaft (530) via a spline.

5. The arm support device according to claim 3, characterized in that: The base (100) is provided with a guide slot (101), and the transmission rack (520) is slidably matched with the guide slot (101).

6. The arm support device according to claim 5, characterized in that: A guide wheel (110) is arranged in the guide sliding groove (101), and the transmission rack (520) is in contact with the guide wheel (110).

7. The arm support device according to claim 2, characterized in that: The support member (600) is connected to the transmission rack (520) via bolts, screws or pins.

8. The arm support device according to claim 2, characterized in that: The support member (600) comprises a connected mounting rod (610), a positioning plate (620) and a positioning airbag (630); the mounting rod (610) is connected to the transmission rack (520); the plate surface of the positioning plate (620) defines a positioning groove; the positioning airbag (630) is arranged in the positioning groove.

9. The arm support device according to claim 8, characterized in that: The mounting rod (610) comprises a first rod body (611) and a second rod body (612); the first rod body (611) is fixedly connected to the transmission rack (520); the second rod body (612) is rotatably matched with the first rod body (611); and the positioning plate (620) is mounted on the second rod body (612).

10. The arm support device according to claim 9, characterized in that: The first rod body (611) is provided with a rotation hole, a positioning bearing is provided in the rotation hole, and the second rod body (612) is inserted into the inner ring of the positioning bearing; a locking screw (614) is threadedly connected to the first rod body (611), and the locking screw (614) is used to abut against the outer peripheral surface of the second rod body (612) to limit the second rod body (612) from rotating relative to the first rod body (611).

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