Suspended arm and therapeutic device thereof

Abstract

The present invention relates to the technical field of medical devices, specifically to a suspension arm and a therapeutic device thereof, wherein the suspension arm comprises two suspension brackets and a suspension mechanism, wherein one end of the two suspension brackets is rotatably connected to a first movable part, and the other end is rotatably connected to a second movable part, and the two suspension brackets are arranged in parallel, and the suspension mechanism comprises a suspension spring, and the two ends of the suspension spring are respectively connected to the first movable part and the second movable part, and the suspension mechanism also comprises a suspension sleeve, and the suspension spring is arranged in the suspension sleeve, and the suspension sleeve comprises a sleeved inner sleeve and an outer sleeve, and one end of the inner sleeve is rotatably connected to the first movable part, and the outer wall of the other end abuts against the inner wall of the outer sleeve, and the inner sleeve and the outer sleeve constitute a friction pair, and the end of the outer sleeve away from the inner sleeve is rotatably connected to a suspension bracket. The therapeutic device comprises the above-mentioned suspension arm. The adoption of this scheme can solve the technical problem in the prior art that the angle and height of the therapeutic lamp cannot be maintained due to the long-term use of the tension spring.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a suspension arm and a therapeutic device thereof. Background Art

[0002] There are many medical devices in hospitals, which are used to assist patients in the treatment of their diseases. Such medical devices usually need to be adjusted in height and angle during use, so there are certain requirements for their height adjustment and angle adjustment performance. For example, infrared therapy devices, TDP therapy devices or moxibustion therapy devices, among which TDP therapy devices, also known as specific electromagnetic spectrum therapy devices, emit specific electromagnetic spectrum through clothes to act on the treatment site, and then pass through the skin to directly produce thermal effects on muscles, subcutaneous tissues, etc., accelerate blood circulation, increase metabolism, reduce pain, increase muscle relaxation, produce massage effects, etc. Due to its special therapeutic effect, it is widely used in various departments of various hospitals.

[0003] The height and angle adjustment of the existing specific electromagnetic spectrum therapeutic device mainly depends on its bracket. The bracket includes two groups of upper and lower quadrilateral arms. Each group of arms includes two parallel support rods and a tension spring. The two support rods of the upper arm are hinged between the upper connecting seat and the middle connecting seat. The tension spring of the upper arm is hinged between the middle connecting seat and one of the support rods of the upper arm. The two support rods of the lower arm are hinged between the middle connecting seat and the lower connecting seat. The tension spring of the lower arm is hinged between the middle connecting seat and one of the support rods of the lower arm. The two support rods in each group of arms and the connecting line between the two ends of the two support rods always remain in a parallelogram. The upper connecting seat is connected to a therapeutic lamp that emits a specific electromagnetic spectrum, and the lower connecting seat is connected to a base or a height adjustment bracket. During use, the upper and lower arms are swung to separate the two support rods in the same group of arms, and the distance between the therapeutic lamp and the middle connecting seat and the lower connecting seat is adjusted to achieve the adjustment of the height and angle of the therapeutic lamp. When the upper arm is swung, the swing of the upper arm causes the tension spring of the upper arm to stretch, and the tension spring of the upper arm generates an upward component of force to balance the gravity exerted on the upper arm. Similarly, when the lower arm is swung, the swing of the lower arm causes the tension spring of the lower arm to stretch, and the tension spring of the lower arm generates an upward component of force to balance the gravity exerted on the lower arm, thereby maintaining the adjusted angle and height of the treatment lamp.

[0004] However, such a structure makes the stability of the angle and height of the treatment lamp dependent on the tension spring, and the tension spring is exposed to the outside and is easily damaged by external forces, so that the angle and height of the treatment lamp cannot be maintained, and even the angle and height of the treatment lamp cannot be adjusted. At the same time, during use, the angle and height of the treatment lamp need to be adjusted many times in a short period of time in response to different treatment parts of different patients. Each adjustment requires the tension spring to be stretched and contracted. In the long run, the tension spring is prone to metal fatigue, so that the treatment lamp needs to be adjusted many times to face the patient's treatment part, increasing the time cost, and during the treatment process, the treatment lamp cannot always face the patient's treatment part, affecting the treatment effect. Summary of the invention

[0005] One of the purposes of the present invention is to provide a suspension arm to solve the technical problem in the prior art that the angle and height of the treatment lamp cannot be maintained due to the long-term use of the tension spring.

[0006] The present invention provides the following basic scheme 1: a suspension arm, comprising two suspension brackets and a suspension mechanism, wherein one end of the two suspension brackets is rotatably connected to a first movable part, and the other end is rotatably connected to a second movable part, the two suspension brackets are arranged in parallel, the suspension mechanism comprises a suspension spring, and the two ends of the suspension spring are respectively connected to the first movable part and the second movable part, the suspension mechanism also comprises a suspension sleeve, the suspension spring is arranged in the suspension sleeve, the suspension sleeve comprises an inner sleeve and an outer sleeve that are sleeved, one end of the inner sleeve is rotatably connected to the first movable part, and the outer wall of the other end abuts against the inner wall of the outer sleeve, the inner sleeve and the outer sleeve constitute a friction pair, and the end of the outer sleeve away from the inner sleeve is rotatably connected to a suspension bracket.

[0007] Beneficial effects of basic solution 1:

[0008] 1. The sleeved inner sleeve and outer sleeve enable the suspension sleeve to extend or shorten with the suspension spring when the suspension spring is stretched or contracted, without affecting the normal use of the suspension spring. At the same time, the setting of the inner sleeve and the outer sleeve prevents the spring from being exposed to the outside, reduces the probability of damage to the suspension spring due to external forces, and prolongs the service life of the suspension spring.

[0009] 2. The extension and shortening of the suspension sleeve is mainly because one end of the inner sleeve extends into the outer sleeve, which shortens the length of the suspension sleeve. The greater the extension length, the shorter the length of the suspension sleeve. On the contrary, the smaller the extension length, the longer the length of the suspension sleeve. When the angle and height of the treatment lamp are adjusted in place, the outer wall of the inner sleeve abuts against the inner wall of the outer sleeve, and the friction between the outer wall of the inner sleeve and the inner wall of the outer sleeve increases, and the inner sleeve is not easy to move in the outer sleeve, thereby assisting the suspension spring to maintain the angle and height of the treatment lamp at this time. Compared with the prior art that only has a tension spring, the friction between the inner sleeve and the outer sleeve increases the resistance to the adjustment of the treatment lamp, thereby avoiding the situation where the upward component force generated by the tension spring and the gravity on the support arm due to long-term use of the tension spring are unbalanced, thereby failing to maintain the angle and height of the treatment lamp.

[0010] 3. The inner sleeve and the outer sleeve form a friction pair, which refers to a system composed of two objects that are in direct contact and produce relative friction motion. The setting of the friction pair increases the friction between the inner sleeve and the outer sleeve, thereby increasing the resistance of the treatment light adjustment. When the suspension spring shows metal fatigue, the treatment light can still be quickly adjusted in angle and height, reducing the time cost during the treatment process and extending the service life of the suspension arm. At the same time, the increase in the adjustment resistance of the treatment light can maintain the angle and height of the treatment light, so that the treatment light is always facing the patient's treatment area.

[0011] Further, the inner sleeve includes a friction structure, which is arranged on the outer wall of the inner sleeve, and the friction structure includes a friction layer, on which friction particles are arranged. Beneficial effect: By setting the friction particles, the roughness of the outer wall of the inner sleeve is increased, thereby increasing the friction coefficient between the outer wall of the inner sleeve and the inner wall of the outer sleeve, and effectively maintaining the angle and height of the treatment lamp.

[0012] Furthermore, the inner sleeve and the outer sleeve each include a friction structure, the friction structure includes a friction layer, the friction layer is provided with friction particles, and the friction layer is respectively provided on the outer wall of the inner sleeve and the inner wall of the outer sleeve. Beneficial effect: By providing the friction particles, the roughness of the outer wall of the inner sleeve and the inner wall of the outer sleeve is increased, thereby increasing the friction coefficient between the outer wall of the inner sleeve and the inner wall of the outer sleeve, further ensuring the stability of the angle and height of the treatment lamp.

[0013] Furthermore, the cross-section of the outer wall of the inner sleeve and the cross-section of the inner wall of the outer sleeve are both polygonal. Beneficial effect: Under the condition of equal area, the perimeter of the polygon is greater than the perimeter of the circle, that is, under the condition of keeping the internal space of the inner sleeve unchanged, the setting of the polygon can increase the contact area between the outer wall of the inner sleeve and the inner wall of the outer sleeve, thereby increasing the friction force generated by the movement of the inner sleeve in the outer sleeve, thereby ensuring the stability of the angle and height of the treatment lamp.

[0014] Furthermore, the outer sleeve includes a friction structure, which is arranged on the inner wall of the outer sleeve, and the friction structure includes a friction protrusion, and the top of the friction protrusion abuts against the outer wall of the inner sleeve. Beneficial effect: The arrangement of the friction protrusion increases the interaction force between the outer sleeve and the inner sleeve, thereby increasing the friction force generated by the movement of the inner sleeve in the outer sleeve, thereby ensuring the stability of the angle and height of the treatment lamp.

[0015] Furthermore, a guide portion is provided at one end of the inner sleeve disposed in the outer sleeve, and the distance from the one side of the guide portion away from the central axis of the inner sleeve to the central axis of the inner sleeve is greater than the distance from the other side to the central axis of the inner sleeve. Beneficial effect: The setting of the guide portion plays a guiding role when adjusting the height and angle of the treatment lamp, and is convenient for use.

[0016] A second object of the present invention is to provide a therapeutic apparatus.

[0017] The present invention provides the following basic solution 2: a therapeutic apparatus, comprising the above-mentioned suspension arm.

[0018] Beneficial effects of basic solution 2: By improving the suspension arm, setting the inner sleeve and the outer sleeve, the suspension spring is protected and the service life is extended. At the same time, the friction generated by the movement of the inner sleeve in the outer sleeve is increased, thereby ensuring the stability of the angle and height of the treatment lamp, so that the treatment lamp can always face the patient's treatment area during the treatment process.

[0019] Furthermore, the number of the suspension arms is two groups, and the first movable member of one group is connected to the second movable member of the other group. Beneficial effect: The number of the suspension arms is set to multiple groups, which increases the adjustment range of the angle and height of the treatment lamp.

[0020] Furthermore, it also includes a treatment lamp, which is rotatably connected to the second movable member away from the suspension arm. Beneficial effect: The treatment lamp is rotatably connected to achieve adjustment of the direction of the treatment lamp.

[0021] Furthermore, an anti-scalding net is fixedly connected to the treatment lamp. Beneficial effect: The anti-scalding net can prevent burns caused by accidental touch during treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view of the first embodiment of the suspension arm of the present invention;

[0023] Figure 2 It is a top view of the first embodiment of the suspension arm of the present invention;

[0024] Figure 3 For the present invention Figure 2 Sectional view at AA in the middle;

[0025] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0026] Figure 5 It is a side view of the first embodiment of the therapeutic apparatus of the present invention;

[0027] Figure 6 This is a logic block diagram of the third embodiment of the therapeutic apparatus of the present invention. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] The reference numerals in the drawings of the specification include: a suspension arm 1, a suspension bracket 2, a first movable part 301, a second movable part 302, an inner sleeve 401, an outer sleeve 402, a suspension spring 403, a friction layer 5, a treatment lamp 6, a rotating rod 7, a fixing plate 8, and an anti-scalding net 9.

[0030] Embodiment 1

[0031] Hover arm, as attached Figure 1 , Attachment Figure 2 As shown, it includes two suspension brackets 2, a suspension mechanism, a first movable member 301 and a second movable member 302. One end of the two suspension brackets 2 is rotatably connected to the first movable member 301, and the other end is rotatably connected to the second movable member 302. The two suspension brackets 2 are arranged in parallel. Specifically, both ends of the suspension bracket 2 are provided with a first through hole, and the first through hole is sleeved with a first bolt. The first movable member 301 and the second movable member 302 each include two clamping plates, and the two clamping plates are provided with first clamping plate holes of matching shape and position, and the first clamping plate holes are for the first bolt to pass through. The two clamping plates are clamped on both sides of the suspension bracket 2, and the number of the first clamping plate holes on the clamping plates is the same as the number of the suspension brackets 2 connected to the clamping plates.

[0032] The suspension mechanism includes a suspension spring 403 and a suspension sleeve. A second through hole is formed on the upper portion of a suspension bracket 2. Third plate holes of matching shape and position are formed on the two clamping plates of the first movable member 301. The second through hole and the third plate hole are both sleeved with second bolts. Figure 3 As shown, the suspension spring 403 in this embodiment is a tension spring, and there are two tension springs. Both ends of the tension spring have hook portions, and the two ends of the suspension spring 403 are respectively hung on two second bolts, and the two suspension springs 403 are clamped between the two clamping plates and the two sides of the suspension bracket 2.

[0033] The suspension sleeve includes an inner sleeve 401 and an outer sleeve 402 which are sleeved together. The outer wall of one end of the inner sleeve 401 abuts against the inner wall of one end of the outer sleeve 402. The other ends of the inner sleeve 401 and the outer sleeve 402 are both provided with third through holes. The number of suspension sleeves is the same as the number of suspension springs 403, that is, the number of suspension sleeves in this embodiment is two. The third through holes on the inner sleeve 401 are sleeved on the second bolts on the two clamping plates, and the third through holes on the outer sleeve 402 are sleeved on the second bolts on the suspension bracket 2. The two suspension springs 403 are respectively arranged in the two suspension sleeves, and the two suspension sleeves are clamped on the two clamping plates and both sides of the suspension bracket 2.

[0034] The cross section of the inner sleeve 401 is annular, its inner ring is circular, and its outer ring is polygonal. In this embodiment, the cross section of the outer wall of the inner sleeve 401 is a regular hexagon. The cross section of the outer sleeve 402 is annular, its outer ring is circular, and its inner ring is a polygon that matches the shape of the outer ring of the cross section of the inner sleeve 401, that is, a regular hexagon. In other embodiments, the inner ring of the cross section of the inner sleeve 401 and the outer ring of the cross section of the outer sleeve 402 may be polygonal, such as a regular hexagon that matches the shape of the outer ring of the cross section of the inner sleeve 401.

[0035] As attached Figure 4 As shown, the inner sleeve 401 and the outer sleeve 402 constitute a friction pair, and the inner sleeve and the outer sleeve respectively include a friction structure, and the friction structure includes a friction layer 5, and the friction layer 5 is provided with friction particles. The two friction layers 5 are respectively provided on the outer wall of the inner sleeve 401 and the inner wall of the outer sleeve 402. The provision of friction particles increases the roughness of the abutment between the inner sleeve 401 and the outer sleeve 402, thereby increasing the friction coefficient of the inner sleeve 401 moving in the outer sleeve 402, so as to increase the friction resistance of the inner sleeve 401 moving in the outer sleeve 402. In other embodiments, only the inner sleeve 401 includes a friction structure, and the friction structure is provided on the outer wall of the inner sleeve 401. The friction structure includes a friction layer 5, and the friction layer 5 is provided with friction particles. In this case, the friction structure of the inner sleeve 401 and the outer sleeve 402 constitute a friction pair.

[0036] By limiting the gap between the inner sleeve and the outer sleeve, the transition fit requirement is met, thereby achieving the purpose of forming a friction pair. The friction coefficient between the inner sleeve and the outer sleeve is enhanced by setting a friction structure. In other embodiments, the surface where the inner sleeve and the outer sleeve abut each other can also be treated, for example, by carburizing to enhance the friction coefficient between the inner sleeve and the outer sleeve. The applicant tested the hovering of therapeutic lamps of different weights. The test showed that in order to effectively control a therapeutic lamp weighing 1500g, the friction coefficient between the inner sleeve and the outer sleeve should be controlled within 0.12-0.50 (taking the inner and outer sleeves made of PVC hard plastic with a diameter of 0.8-1cm as an example). If the inner sleeve and the outer sleeve are gap-fitted or the inner and outer sleeves are directly removed, the therapeutic lamp weighing 1500g can only be stabilized at a specific support position, and cannot be "hovered" at any active position.

[0037] Therapeutic device, such as Figure 5 As shown, it includes the above-mentioned suspension arm 1, and the number of the suspension arms 1 is two groups. The first movable member 301 of one group is connected to the second movable member 302 of the other group. The connected first movable member 301 and the second movable member 302 are integrally formed. Specifically, the first movable member 301 and the second movable member 302 each include two splints. The two splints on the first movable member 301 and the two splints on the second movable member 302 are respectively integrally formed. The connected splints are annular plates, and the inner ring and the outer ring of the annular plate are isosceles trapezoids of matching shapes. The two first splint holes in the same group of suspension arms 1 are located at the two ends of the waist of the splint, and the line connecting the two splint holes is parallel to the waist of the isosceles trapezoid, and the third splint hole is located at the lower bottom of the splint.

[0038] The device further comprises a treatment lamp 6, which is rotatably connected to the second movable member 302 away from the suspension arm 1. Specifically, the two clamping plates of the second movable member 302 away from the suspension arm 1 are bent back to back to form a rotation cavity, and a rotation rod 7 is inserted into the rotation cavity. The two clamping plates of the second movable member 302 away from the suspension arm 1 are also provided with a first locking bolt passing through the two clamping plates, and one end of the first locking bolt is fixedly connected with a first knob. In this embodiment, the first knob is bonded to the first locking bolt, and the first locking bolt is used to lock the two clamping plates to lock the rotation rod 7. The end of the rotation rod 7 away from the second movable member 302 is provided with a second locking bolt passing through the end, and the two ends of the second locking bolt are sleeved with a fixing plate 8, and the end of the fixing plate 8 away from the second locking bolt is fixedly connected to the treatment lamp 6. In this embodiment, the fixing plate 8 is integrally formed with the housing of the treatment lamp 6. The two fixing plates 8 are clamped on both sides of the rotation rod 7, and one end of the second locking bolt is fixedly connected with a second knob, and the second locking bolt is used to lock the two fixing plates 8 to fix the treatment lamp 6. The treatment lamp 6 is fixedly connected with an anti-scalding net 9, which is horn-shaped, and one end of the anti-scalding net 9 with a small diameter is fixedly connected to the housing of the treatment lamp 6 by screws. The treatment lamp 6 is a treatment lamp 6 of an infrared therapeutic device in the prior art, so it is not described in detail.

[0039] The device further comprises a base, which is fixedly connected to the first movable member 301 away from the suspension arm 1, specifically, by screws. The base can be a seat structure of an existing therapeutic device, or a vertical structure of an existing therapeutic device, which is not the invention point of the present application and will not be described in detail.

[0040] The inner sleeve and the outer sleeve are made of plastic or other high-resistance materials. According to the relevant requirements of GB 9706.1-2007 General requirements for medical electrical safety, in this embodiment, the inner sleeve and the outer sleeve are made of plastic. The impedance between all accessible metal parts of the treatment lamp does not exceed 0.2Ω. The inner and outer sleeves made of plastic or high-resistance materials cover the suspension spring as a whole to prevent it from being touched by the user and causing an undesirable electric shock.

[0041] Embodiment 2

[0042] The difference between this embodiment and the first embodiment is that:

[0043] In this embodiment, only the outer sleeve 402 includes a friction structure, which is arranged on the inner wall of the outer sleeve 402. The friction structure includes a friction protrusion, and the top of the friction protrusion abuts against the outer wall of the inner sleeve 401. At this time, the friction structure of the outer sleeve 402 and the inner sleeve 401 form a friction pair. The provision of the friction protrusion increases the interaction force between the inner sleeve 401 and the outer sleeve 402, thereby increasing the friction force generated by the movement of the inner sleeve 401 in the outer sleeve 402, thereby ensuring the stability of the angle and height of the treatment lamp 6.

[0044] A guide portion is provided at one end of the inner sleeve 401 located inside the outer sleeve 402, and the distance from the one side of the guide portion away from the central axis of the inner sleeve 401 to the central axis of the inner sleeve 401 is greater than the distance from the other side to the central axis of the inner sleeve 401. The setting of the guide portion plays a guiding role when adjusting the height and angle of the treatment lamp 6, so as to facilitate the extension and shortening of the hovering sleeve.

[0045] In this embodiment, the therapeutic apparatus uses the above-mentioned suspension arm 1.

[0046] Embodiment 3

[0047] The therapeutic device is used in various departments of the hospital. It can produce thermal effects on muscles, subcutaneous tissues, etc., accelerate blood circulation, increase metabolism, and other effects, thereby accelerating wound healing. During use, it is necessary to ensure that the range of action of the therapeutic device covers the patient's treatment area in order to achieve a better auxiliary treatment effect. However, since the patient's treatment area is various and blocked by clothing, medical dressings, etc., it often takes a lot of time to adjust the therapeutic light of the therapeutic device. Even if a lot of time is spent on adjustment, the range of action of the therapeutic light may not completely cover the patient's treatment area, so that the patient can not get a good treatment effect, but also spend a lot of time and money.

[0048] The difference between this embodiment and the first embodiment is that: in this embodiment, the therapeutic apparatus, such as the attached Figure 6 As shown, it also includes a control module, an infrared thermal imaging detection module, a display module and a prompt module. The control module, the display module and the prompt module are arranged on the base of the therapeutic device. The infrared thermal imaging detection module is arranged on the side of the therapeutic lamp 6 away from the fixing plate 8. In order to prevent the therapeutic lamp from affecting the detection result of the infrared thermal imaging detection module, an isolation plate is provided between the infrared thermal imaging detection module and the therapeutic lamp.

[0049] The control module is electrically connected to the infrared thermal imaging detection module, the display module, and the prompt module respectively. The infrared thermal imaging detection module is used to obtain the patient's body surface thermal imaging data before starting the treatment lamp, and mark the body surface isotherms higher than the preset body surface temperature according to the body surface thermal imaging data. The range within the body surface isotherms is determined as the patient's lesion area that needs centralized physical therapy. The preset body surface temperature is the maximum value within the normal range of human body surface temperature. The control module is used to obtain the lesion center point of the area enclosed by the body surface isotherms according to the body surface isotherms, that is, the center point of the patient's lesion area, and generate adjustment information according to the preset action center point and lesion center point of the treatment lamp action range. The display module is used to display the lesion center point, action center point and adjustment information to assist the operator in adjusting the position and angle of the treatment lamp so that the treatment lamp can face the patient's lesion area.

[0050] The control module is also used to control the working power and working time of the treatment lamp when starting the treatment lamp. At this time, the center point of the lesion and the center point of action coincide. The infrared thermal imaging detection module is also used to obtain the patient's physical therapy thermal imaging data when starting the treatment lamp, and mark the minimum isotherm of the minimum value in the preset physical therapy temperature range and the maximum isotherm of the maximum value in the preset physical therapy temperature range according to the physical therapy thermal imaging data. The area surrounded by the minimum isotherm is the effective action range of the treatment lamp for centralized physical therapy, and the area surrounded by the minimum isotherm and the maximum isotherm is the effective action range at an appropriate temperature. The control module is also used to compare the area surrounded by the minimum isotherm and the area surrounded by the body surface isotherm to determine whether the patient's lesion area is located in the effective action range. When the judgment result is that it is not completely covered, a coverage alarm is generated. The prompt module is used to issue a reminder according to the coverage alarm and display it through the display module. It is convenient for the operator to adjust the distance from the therapeutic device to the patient in time, thereby increasing the action area of ​​the therapeutic device on the patient and effectively covering the patient's lesion area.

[0051] The control module is also used to adjust the working power of the treatment lamp when the infrared thermal imaging detection module marks the maximum value isotherm of the maximum value in the preset physical therapy temperature range, and reduce the intensity of the radiation irradiated to the patient's body surface until there is no maximum value isotherm in the patient's physical therapy thermal imaging data, that is, the effective range irradiated to the patient is the effective range at the appropriate temperature. This avoids the occurrence of burns to the patient due to excessive temperature and prevents the deterioration of the wound.

[0052] The present application utilizes the situation that the temperature of the wound is different from the normal body surface temperature due to the accelerated blood flow and enhanced local decomposition metabolism caused by the healing of the wound, which leads to the increase in heat production; the temperature of the fracture is different from the normal body surface temperature due to the absorption of local hematoma after fracture and the absorption heat; the temperature of the wound and fracture is different from the normal body surface temperature due to the fever caused by infection and inflammation of the wound and fracture. Based on the difference between the lesion area and the normal body surface temperature, the position and angle of the treatment lamp are adjusted so that the range of action of the treatment lamp is directly facing the patient's lesion area during treatment, the treatment lamp is quickly positioned, and the patient can get a better treatment effect.

[0053] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A suspension arm, comprising two suspension brackets and a suspension mechanism, wherein one end of each suspension bracket is rotatably connected to a first movable member, and the other end of each suspension bracket is rotatably connected to a second movable member, the two suspension brackets are arranged in parallel, and the suspension mechanism comprises a suspension spring, and the two ends of the suspension spring are respectively connected to the first movable member and the second movable member, and the characteristics are: The suspension mechanism also includes a suspension sleeve, a suspension spring is arranged in the suspension sleeve, the suspension sleeve includes an inner sleeve and an outer sleeve that are sleeved together, one end of the inner sleeve is rotatably connected to the first movable part, and the outer wall of the other end abuts against the inner wall of the outer sleeve, the inner sleeve and the outer sleeve form a friction pair, and the end of the outer sleeve away from the inner sleeve is rotatably connected to a suspension bracket; the suspension spring is a tension spring.

2. The suspension arm according to claim 1, characterized in that: The inner sleeve comprises a friction structure, which is arranged on the outer wall of the inner sleeve. The friction structure comprises a friction layer, on which friction particles are arranged.

3. The suspension arm according to claim 1, characterized in that: The inner sleeve and the outer sleeve respectively include a friction structure, the friction structure includes a friction layer, the friction layer is provided with friction particles, and the friction layer is respectively arranged on the outer wall of the inner sleeve and the inner wall of the outer sleeve.

4. The suspension arm according to claim 1, characterized in that: The cross sections of the outer wall of the inner sleeve and the inner wall of the outer sleeve are both polygonal.

5. The suspension arm according to claim 1, characterized in that: The outer sleeve comprises a friction structure, which is arranged on the inner wall of the outer sleeve. The friction structure comprises a friction protrusion, and the top of the friction protrusion abuts against the outer wall of the inner sleeve.

6. The suspension arm according to claim 5, characterized in that: One end of the inner sleeve disposed in the outer sleeve is provided with a guide portion, and the distance from one side of the guide portion away from the central axis of the inner sleeve to the central axis of the inner sleeve is greater than the distance from the other side to the central axis of the inner sleeve.

7. A therapeutic apparatus, characterized in that: The invention comprises the suspension arm as described in any one of claims 1 to 6.

8. The therapeutic apparatus according to claim 7, characterized in that: There are two groups of suspension arms, and the first movable member of one group is connected to the second movable member of the other group.

9. The therapeutic apparatus according to claim 8, characterized in that: It also includes a treatment light, which is rotatably connected to a second movable member away from the suspension arm.

10. The therapeutic apparatus according to claim 9, characterized in that: An anti-scalding net is fixedly connected to the treatment lamp.

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