Medical supporting arm and microwave therapeutic apparatus

Abstract

The utility model provides a medical supporting arm, and relates to the technical field of medical instruments, a supporting arm U-shaped seat comprises two supporting walls used for supporting, the two supporting walls are respectively used for supporting a head joint, so that stress on two sides of the head joint is balanced, and abrasion caused by single-side supporting is reduced; a damping assembly and a torsional elastic part which are coaxially arranged are arranged between the supporting arm U-shaped seat and the head joint, and the damping assembly is used for providing damping when the supporting arm U-shaped seat and the head joint rotate relatively, so that certain damping is generated when the head joint rotates; when the head joint rotates, the torsion elastic piece generates elastic deformation, and the elastic deformation can also apply torque to the head joint so as to resist the torque generated by gravity. When the head joint rotates downwards, the torsion elastic piece counteracts part of torque generated by gravity, and too fast downward rotation is prevented; when the head joint rotates upwards, the torsion elastic piece assists in upward lifting, and upward lifting force is reduced; the adjustment process of upward rotation and downward rotation is easier, and the use experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and further to a medical support arm and a microwave therapeutic apparatus. Background Art

[0002] In the application scenarios of medical devices such as microwave therapy devices, the treatment head is installed on a support arm. It is often necessary to change the position of the treatment head and position the treatment head at different positions, which requires the support arm to be able to swing and position.

[0003] Currently, the support arms on the market are mainly divided into three categories: one is to rely solely on friction to support lighter parts. This type of support arm is inconvenient to adjust during use, especially when the support arm is adjusted upward, it is necessary to overcome the friction and the weight of the load-bearing object at the same time, making adjustment difficult; the second is to use gas springs to support parts. This type of support arm is not beautiful, and the gas spring parameters are fixed after leaving the factory and cannot adapt to other weights; the third is to use electrodes to achieve precise angle control. This requires a complete set of systems to assist in implementation, has a complex structure, high processing precision requirements, high cost, and large size, and is not suitable for delicate smaller structures.

[0004] Combination Figure 1 As shown, there is a schematic diagram of the structure of the first type of existing support arm; it includes a connecting rod 01 and a connecting seat 02, the connecting seat 02 is an L-shaped structure, and a damping shaft 03 is connected between a side wall of the connecting seat 02 and one end of the rotating shaft of the connecting rod 01. The connecting rod 01 is only connected to the connecting seat 02 through the damping shaft 03. During use, due to uneven force on the left and right sides, it is easy to cause damage to the damping shaft 03 or accelerate the wear and shorten the life of the damping shaft. Since the torque of the damping shaft is consistent throughout the rotation, when the support arm is loaded and swung from bottom to top, it needs to overcome the force of the heavy object and the damping shaft, which makes adjustment difficult.

[0005] For technicians in this field, making it easier and more labor-saving to adjust the support arm is a technical problem that needs to be solved at present. Utility Model Content

[0006] The core of the utility model is to provide a medical support arm, which can provide a damping feel of rotation with the help of a damping assembly and a torsion elastic member, and can also bear part of the torque generated by gravity with the help of the torsion elastic member, so that the support is more balanced and the adjustment process is easier. The specific scheme is as follows:

[0007] A medical support arm, comprising a support arm U-shaped seat, a first joint, a damping assembly, and a torsion elastic member; the support arm U-shaped seat comprises two support walls for support, a part of the first joint is arranged between the two support walls, and the two support walls are respectively used to support the first joint;

[0008] The damping assembly and the torsion elastic member are coaxially arranged between the support arm U-shaped seat and the first joint. The damping assembly is used to provide damping when the support arm U-shaped seat and the first joint rotate relative to each other, and the torsion elastic member is used to generate elastic deformation to resist the torque generated by gravity.

[0009] Optionally, the damping component is a damping shaft;

[0010] Alternatively, the damping assembly is a combination of a screw, a lock nut, a disc spring, and a gasket.

[0011] Optionally, it further comprises a torsion spring cover and a lubricating sleeve, and the inner cavity of the first joint is configured to accommodate the cylindrical cavity of the damping assembly;

[0012] The end surface of the cylindrical cavity is provided with a mounting groove for inserting the lubricating sleeve; the torsion spring cover is provided with a stepped shaft for inserting the lubricating sleeve; the torsion spring cover is assembled with the first joint to realize radial support.

[0013] Optionally, the torsion elastic member is a torsion spring, and two ends of the torsion spring are respectively connected to the torsion spring cover and the first joint;

[0014] The torsion spring spirally surrounds the outside of the cylindrical cavity.

[0015] Optionally, the torsion spring cover and the damping assembly are fixed to the two support walls by bolts respectively;

[0016] A joint cover and a decorative plate are respectively arranged on the outer sides of the two support walls;

[0017] The first joint is provided with a limiting groove for limiting the rotation range.

[0018] Optionally, the support arm U-shaped seat is installed on the support arm base; and the first joint is connected to the support rod.

[0019] Optionally, the damping assembly is arranged between the support arm base and the support arm U-shaped seat, and the support arm base and the support arm U-shaped seat can rotate relative to each other.

[0020] Optionally, the support rod includes at least two connecting rods nested in each other, and a connecting nut, a rubber ring, a nylon ring, a guide piece, and a plug are provided between the two connecting rods.

[0021] Optionally, the top end of the support rod is connected to the connecting ball rod through a ball joint.

[0022] The utility model also provides a microwave therapeutic apparatus, comprising the medical support arm described in any one of the above items; further comprising a chassis and a treatment head, the medical support arm being fixed to the chassis through an arm base, and the treatment head being mounted on the medical support arm.

[0023] The utility model provides a medical support arm, wherein the U-shaped seat of the support arm comprises two support walls for support, a part of the first joint is arranged between the two support walls, and the two support walls are respectively used to support the first joint, so that the forces on both sides of the first joint are balanced, and the wear caused by unilateral support is reduced; a coaxially arranged damping component and a torsion elastic component are provided between the U-shaped seat of the support arm and the first joint, and the damping component is used to provide damping when the U-shaped seat of the support arm and the first joint rotate relative to each other, so that a certain damping is generated when the first joint rotates; when the first joint rotates, the torsion elastic component generates elastic deformation, and the elastic deformation can also apply torque to the first joint to resist the torque generated by gravity; when the first joint rotates downward, the torsion elastic component offsets a part of the torque generated by gravity to prevent it from rotating downward too quickly; when the first joint rotates upward, the torsion elastic component assists in lifting upward to reduce the force for lifting upward; the adjustment process of rotating upward and rotating downward is easier, and the use experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. 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 structural schematic diagram of an existing single-sided support arm;

[0026] Figure 2 An exploded view of a specific embodiment of the medical support arm provided by the utility model;

[0027] Figure 3 An axonometric cross-sectional view of a specific embodiment of the medical support arm provided by the utility model;

[0028] Figure 4 It is a cross-sectional view of the cooperation between the support arm U-shaped seat, the first joint, the damping assembly, and the torsion elastic member;

[0029] Figure 5 It is an axonometric cross-sectional view of a specific embodiment of a support rod;

[0030] Figure 6 The figure is a schematic diagram of the assembly of the support rod;

[0031] Figure 7 This is an axonometric diagram of a specific embodiment of the microwave therapeutic device provided by the utility model.

[0032] The figure includes:

[0033] Support arm U-shaped seat 1, support wall 11, joint cover 12, decorative plate 13, first joint 2, cylindrical cavity 21, limit groove 22, damping assembly 3, torsion spring cover 31, lubrication sleeve 32, anti-loosening nut 302, disc spring 303, gasket 304, plane bearing 305, torsional elastic member 4, support arm base 5, support rod 6, connecting rod 61, connecting nut 62, rubber ring 63, nylon ring 64, guide part 65, plug 66, ball rod 7, ball joint 71, chassis 8, treatment head 9. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the medical support arm and microwave therapeutic apparatus of the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Combination Figure 2 , Figure 3 As shown, the utility model provides a medical support arm, including a support arm U-shaped seat 1, a first joint 2, a damping assembly 3, a torsion elastic member 4 and other structures. The support arm U-shaped seat 1 includes two support walls 11 for support, the two support walls 11 extend vertically, and a space for accommodating the first joint 2 is formed between the two support walls 11; the two support walls 11 are fixedly arranged on the same bottom support structure, and the two support walls 11 and the bottom support structure together form a U-shaped groove space.

[0036] The first joint 2 is partially arranged between the two supporting walls 11, and at least a part of the structure of the first joint 2 is located between the two supporting walls 11. There is a rotational connection relationship between the first joint 2 and the two supporting walls 11, and the first joint 2 and the support arm U-shaped seat 1 can rotate relative to each other; the two supporting walls 11 are respectively used to support the first joint 2, that is, there is support at both ends of the rotation axis of the first joint 2 relative to the supporting walls 11, ensuring that the first joint 2 will not tilt toward any end of the two ends, and can maintain a relatively balanced state, ensuring that the rotation axis of the first joint 2 remains horizontal during rotation.

[0037] A damping assembly 3 and a torsional elastic member 4 are coaxially arranged between the support arm U-shaped seat 1 and the first joint 2, and both the damping assembly 3 and the torsional elastic member 4 can play a role when the support arm U-shaped seat 1 and the first joint 2 produce relative rotation. The damping assembly 3 is used to provide damping when the support arm U-shaped seat 1 and the first joint 2 rotate relative to each other, so that the support arm U-shaped seat 1 and the first joint 2 can rotate smoothly; the torsional elastic member 4 is used to produce elastic deformation to resist the torque generated by gravity, and the torsional elastic member 4 can produce torque between the support arm U-shaped seat 1 and the first joint 2, and the torsional elastic member 4 is used to resist the torque generated by gravity. Normally, the support arm U-shaped seat 1 is used to support the first joint 2, that is, the support arm U-shaped seat 1 is at the bottom and the first joint 2 is at the top, but the two joints can also be replaced. When the support arm U-shaped seat 1 is at the bottom and the head joint 2 is at the top, if the head joint 2 rotates downward together with other structures installed thereon, the torsion elastic member 4 will be elastically deformed, and the greater the downward rotation, the greater the elastic force generated by the torsion elastic member 4. The torsion elastic member 4 can resist a part of the torque generated by the head joint 2 and other structures installed thereon due to gravity. Therefore, the force required by the damping assembly 3 to keep the head joint 2 at a specific angle position through damping can be reduced, thereby reducing the overall wear of the damping assembly 3. Since the head joint 2 is supported by two support walls 11 respectively, it can be ensured that the damping assembly 3 will not have offset wear (if it is supported on one side, the wear degree at the lower position will be greater), and the wear degree of the damping assembly 3 in the circumferential direction is more uniform, which is conducive to improving the service life of the entire damping assembly 3.

[0038] When the medical support arm provided by the utility model is used, a damping effect is generated between the support arm U-shaped seat 1 and the first joint 2 through the damping component 3 when adjusting the angle. Compared with the traditional method of relying solely on damping to resist gravity to maintain suspension, the utility model also uses the elastic force generated by the torsion elastic member 4 to resist gravity, so the damping component 3 is used to maintain suspension with less force and less wear. When the first joint 2 rotates downward, the torque generated by the elastic force of the torsion elastic member 4 offsets part of the torque generated by gravity to prevent excessive downward rotation; when the first joint 2 rotates upward, the torque generated by the elastic force of the torsion elastic member 4 assists in lifting upward, reducing the force of lifting upward; the adjustment process of rotating upward and rotating downward is easier, improving the user experience.

[0039] Based on the above solution, the damping component 3 provided by the present invention can be provided in two ways. In the first way, the damping component 3 is a damping shaft; in the second way, the damping component 3 is a combination of a screw, a locking nut, a disc spring, and a gasket. Figure 4As shown, the damping shaft includes two disk-shaped structures that can rotate relative to each other. There is friction between the two disk-shaped structures, which can generate damping during relative rotation. Within a certain range, it can withstand the torque generated by gravity of the first joint 2 and other structures installed thereon, thereby keeping the first joint 2 in a stationary state. In addition to using a modular damping shaft, other combinations of structures can also be used to exert the damping effect, such as a combination of a screw, a lock nut, a disc spring, and a gasket. The screw and the lock nut cooperate to press the disc spring and the gasket. The greater the pressure on the disc spring and the gasket, the greater the damping force they generate. The disc spring and the gasket are disc-shaped structures with a hole in the middle for the screw to pass through. The disc spring can produce elastic deformation under pressure, thereby producing friction damping in cooperation with the gasket.

[0040] Combination Figure 3 , Figure 4 As shown, the medical support arm of the utility model further includes a torsion spring cover 31 and a lubricating sleeve 32. The inner cavity of the first joint 2 is configured to accommodate the cylindrical cavity 21 of the damping assembly 3. The cylindrical cavity 21 is located within the outer shell of the first joint 2, and the cylindrical cavity 21 is relatively fixed to other positions of the first joint 2 as a whole. The inner cavity of the first joint 2 is used for inserting the damping assembly 3. Figure 4 The damping assembly 3 (damping shaft) is inserted into the cylindrical cavity 21 from the right side.

[0041] The end surface of the cylindrical cavity 21 is provided with a mounting groove for inserting the lubricating sleeve 32. The lubricating sleeve 32 is an annular sleeve structure. Figure 4 As shown, a through hole is provided at the left end of the cylindrical cavity 21, into which a lubricating sleeve 32 can be installed. The torsion spring cover 31 is provided with a stepped shaft for inserting the lubricating sleeve 32, and the stepped shaft can be inserted into the lubricating sleeve 32, which can play a lubricating role in reducing friction. The torsion spring cover 31 is assembled with the first joint 2 to achieve radial support, which is mainly achieved by the cooperation between the lubricating sleeve 32 and the torsion spring cover 31. Figure 4 As shown, the torsion spring cover 31 is relatively fixed to the support wall 11 on the left, and the fixed part of the damping assembly 3 is relatively fixed to the support wall 11 on the right. The damping assembly 3 generates friction damping, and the lubricating sleeve 32 plays the role of a bearing, reduces friction resistance, and provides radial support force.

[0042] Specifically, the torsion elastic member 4 provided by the utility model is a torsion spring, and the two ends of the torsion spring are respectively connected to the torsion spring cover 31 and the first joint 2. When the first joint 2 rotates, the torsion spring cover 31 remains stationary, and there is relative rotation between the torsion spring cover 31 and the first joint 2. The torsion spring spirally surrounds the outside of the cylindrical cavity 21 and is located inside the shell of the first joint 2.

[0043] The torsion spring cover 31 has two functions: one is to act as the left axis so that the left and right forces of the connecting rod are symmetrical when it moves, which makes it more stable and durable when in use; the other is to fix the torsion spring and adjust the preload of the torsion spring. The function of the torsion spring: when the support rod 6 swings downward, the torque will become larger and larger. At this time, the support rod 6 connected to the weight also needs more and more torque to support the weight; and when the support rod 6 is loaded and swings from bottom to top, the arm needs to overcome the force of the weight and the damping shaft. At this time, the torsion spring can just provide assistance for upward adjustment.

[0044] Combination Figure 2 , Figure 3 As shown, the torsion spring cover 31 and the damping assembly 3 are respectively fixed to the two supporting walls 11 by bolts, and the torsion spring cover 31 and the damping assembly 3 are respectively fixed and assembled by multiple bolts. The outer sides of the two supporting walls 11 are respectively provided with a joint cover 12 and a decorative plate 13, and the joint cover 12 can also be fixed to the supporting wall 11 by bolts. The decorative plate 13 can be installed and fixed by a snap-fit ​​fixing method.

[0045] Combination Figure 2 As shown, the first joint 2 is provided with a limit groove 22 for limiting the rotation range. Accordingly, a clamping block structure can be provided on the support wall 11, and the clamping block can be inserted into the clamping groove to limit the rotation angle range of the first joint 2, so that the first joint 2 can rotate within a certain range. It can rotate within an angle range of about 120°.

[0046] Based on any of the above technical solutions and their combination, the arm U-shaped seat 1 of the utility model is installed on the arm base 5; the first joint 2 is connected to the support rod 6. Figure 2 , Figure 6 As shown, the arm base 5 is a right-angle bent structure, but the specific structure of the arm base 5 can be set accordingly according to the needs of use, and is not limited thereto, as long as it can be relatively fixed with the chassis 8. The bottom end of the support rod 6 is installed on the head joint 2, and the top end of the support rod 6 is used to install the treatment head. The support rod 6 can drive the treatment head installed above to rotate, thereby adjusting the position of the treatment head.

[0047] A damping assembly 3 is arranged between the support arm base 5 and the support arm U-shaped seat 1, and the support arm base 5 and the support arm U-shaped seat 1 can rotate relative to each other. Figure 2 , Figure 3 As shown, the damping assembly 3 is a combination of a screw 301, a locking nut 302, a disc spring 303, and a gasket 304, and an additional plane bearing 305 is provided to ensure that the arm U-shaped seat 1 can rotate relative to the arm base 5 around the vertical rotation axis (the axial direction of the screw 301).

[0048] Combination Figure 5 , Figure 6As shown, the support rod 6 includes at least two sections of connecting rods 61 that are nested with each other. The connecting rods 61 can be nested and inserted with each other. A connecting nut 62, a rubber ring 63, a nylon ring 64, a guide 65, and a plug 66 are arranged between the two sections of the connecting rods 61. An external thread is arranged on the outer surface of one section of the connecting rod 61 for cooperating with the connecting nut 62. The connecting nut 62 can be tightened or loosened to achieve sliding adjustment of the connecting rod 61. The rubber ring 63 is sleeved between the connecting nut 62 and the thinner connecting rod 61, the nylon ring 64 is sleeved between the two sections of the connecting rod 61, and the guide 65 is inserted into the end of the thinner connecting rod 61 and extends into the thicker connecting rod 61. The plug 66 is inserted into the guide 65 to achieve blocking.

[0049] Combination Figure 6 As shown, the top end of the support rod 6 is connected to the connecting ball rod 7 through a ball joint 71. The ball rod 7 is used to install the treatment head. The treatment head can be rotated 360 degrees around the ball joint 71 to facilitate its position adjustment.

[0050] The utility model also provides a microwave therapeutic apparatus, including the above-mentioned medical support arm; also includes a case 8 and a treatment head 9, the medical support arm is fixed to the case 8 through the support arm base 5, and the treatment head 9 is installed on the medical support arm 6, such as Figure 7 As shown, the microwave therapeutic device can be provided with two treatment heads, wherein the circular treatment head has a better focusing effect and can provide concentrated range treatment; the square treatment head has a larger coverage area and can provide wide range treatment. The two treatment heads are respectively mounted on a support arm 6 and can be independently adjusted.

[0051] The utility model uses a standard damping shaft on the market. There is no need to adjust the torque on site during the production and assembly process, which greatly simplifies the production and assembly process. In addition, the use of a torsion spring solves the problem that the damping shaft cannot bear heavy objects for a long time. In the process of swinging the arm, whether it is adjusted up or down, the adjustment force is guaranteed to be uniform and moderate, and the swing is smooth. The overall structure is simple, and one person can complete the assembly of the whole machine without special tools. It is more suitable for the production of small and medium batches of medical equipment.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A medical support arm, characterized in that: It comprises a support arm U-shaped seat (1), a head joint (2), a damping assembly (3), and a torsion elastic member (4); the support arm U-shaped seat (1) comprises two support walls (11) for supporting, a part of the head joint (2) is arranged between the two support walls (11), and the two support walls (11) are respectively used to support the head joint (2); The damping assembly (3) and the torsion elastic member (4) are coaxially arranged between the support arm U-shaped seat (1) and the head joint (2); the damping assembly (3) is used to provide damping when the support arm U-shaped seat (1) and the head joint (2) rotate relative to each other; and the torsion elastic member (4) is used to generate elastic deformation to resist the torque generated by gravity.

2. The medical support arm according to claim 1, characterized in that: The damping component (3) is a damping shaft; Alternatively, the damping assembly (3) is a combination of a screw rod, a locking nut, a disc spring, and a gasket.

3. The medical support arm according to claim 2, characterized in that: It also includes a torsion spring cover (31) and a lubricating sleeve (32), and the inner cavity of the first joint (2) is configured to accommodate the cylindrical cavity (21) of the damping assembly (3); The end surface of the cylindrical cavity (21) is provided with a mounting groove for inserting the lubricating sleeve (32); the torsion spring cover (31) is provided with a stepped shaft for inserting the lubricating sleeve (32); the torsion spring cover (31) is assembled in cooperation with the first joint (2) to achieve radial support.

4. The medical support arm according to claim 3, characterized in that: The torsion elastic member (4) is a torsion spring, and two ends of the torsion spring are respectively connected to the torsion spring cover (31) and the first joint (2); The torsion spring spirally surrounds the outside of the cylindrical cavity (21).

5. The medical support arm according to claim 4, characterized in that: The torsion spring cover (31) and the damping assembly (3) are respectively fixed to the two supporting walls (11) by bolts; A joint cover (12) and a decorative plate (13) are respectively arranged on the outer sides of the two support walls (11); The first joint (2) is provided with a limiting groove (22) for limiting the rotation range.

6. The medical support arm according to any one of claims 1 to 5, characterized in that: The support arm U-shaped seat (1) is installed on the support arm base (5); and the first joint (2) is connected to the support rod (6).

7. The medical support arm according to claim 6, characterized in that: The damping assembly (3) is arranged between the support arm base (5) and the support arm U-shaped seat (1), and the support arm base (5) and the support arm U-shaped seat (1) are capable of relative rotation.

8. The medical support arm according to claim 6, characterized in that: The support rod (6) comprises at least two sections of connecting rods (61) nested with each other, and a connecting nut (62), a rubber ring (63), a nylon ring (64), a guide member (65), and a plug (66) are arranged between the two sections of the connecting rods (61).

9. The medical support arm according to claim 6, characterized in that: The top end of the support rod (6) is connected to the connecting ball rod (7) via a ball joint (71).

10. A microwave therapeutic apparatus, characterized in that: It comprises the medical support arm as claimed in any one of claims 1 to 9; and also comprises a case (8) and a treatment head (9), wherein the medical support arm is fixed to the case (8) via an arm base (5), and the treatment head (9) is mounted on the medical support arm.

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