Pillow for supporting arms

By designing a pillow to support the arm and utilizing a gripping and lifting mechanism, the discomfort caused by prolonged arm elevation during CT-guided lung nodule ablation treatment was resolved, improving surgical comfort and precision, and increasing the success rate of the procedure.

CN223615066UActive Publication Date: 2025-12-02CHINA JAPAN FRIENDSHIP HOSPITAL
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Patent Information

Application Number
CN202422712525.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-12-02
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

During CT-guided ablation of lung nodules, patients experienced discomfort such as muscle fatigue, soreness, and tremors due to keeping their arms raised near their heads for extended periods, which affected the smooth progress of the procedure.

Method used

A pillow for supporting the arm has been designed, which includes a headrest, a gripping mechanism and a lifting mechanism. The handle height is adjusted by a worm gear and worm wheel transmission system, and stability is ensured by the cooperation of a limit block and a limit groove. The lifting mechanism provides multi-angle support.

Benefits of technology

It effectively relieved patients' muscle fatigue and soreness, improved surgical comfort and precision, reduced CT imaging blur or deviation, and enhanced the success rate of surgery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of medical instruments, particularly relates to a pillow for supporting arms, and aims to solve the problem that an existing patient feels tired easily when raising the arms for a long time for medical examination or operation, the pillow comprises a flat plate, a headrest, a grabbing mechanism and a four-corner lifting mechanism are arranged on the flat plate, the grabbing mechanism is matched with a handle through a first mounting seat, and the four-corner lifting mechanism is matched with the handle through a second mounting seat. An adjusting mechanism is arranged inside to adjust the height of the handle so as to meet different requirements, the lifting mechanism reasonably supports arms of a patient and relieves burden, stable head supporting is provided, muscle fatigue and aching pain are effectively relieved through the grabbing mechanism, the comfort degree is improved through multi-angle adjustment of the lifting mechanism, operation risks are reduced, and the operation efficiency is improved. The adjusting mechanism is driven by a worm and a worm gear, operation is convenient and stable, accuracy and success of an operation are guaranteed, overall design is flexible and reliable, and operation experience and operation quality of a patient are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a pillow for supporting the arm. Background Technology

[0002] In the field of medical device technology, especially in interventional treatment of lung diseases, CT-guided ablation of lung nodules has become an important non-surgical treatment method. This technology utilizes the high-precision imaging capabilities of CT to accurately locate small lung nodules and effectively eliminate lesions while maintaining the integrity of the patient's lung tissue through thermal ablation or cryoablation, significantly improving the safety and effectiveness of treatment.

[0003] However, in practice, CT-guided ablation of lung nodules faces a key challenge: patients need to maintain a specific posture for a long time, especially raising their arms to near their heads to provide doctors with a clear view of the lungs and sufficient operating space. This unnatural posture requires patients to have a high level of tolerance, but unfortunately, most patients experience muscle fatigue, soreness, or even tremors after maintaining this posture for a long time, which seriously affects the smooth progress of the surgery. Therefore, a pillow to support the arm is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where patients need to maintain a specific posture for extended periods, particularly raising their arms near their heads to provide doctors with a clear view of the lungs and sufficient operating space. This unnatural posture requires patients to have a high level of endurance, but unfortunately, most patients experience muscle fatigue, soreness, or even tremors after maintaining this posture for a long time, which seriously affects the smooth progress of the surgery. Therefore, this invention proposes a pillow to support the arm.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pillow for supporting the arm includes a flat surface, a headrest provided at the top center of the flat surface, a gripping mechanism for the patient to grasp on one side of the top of the flat surface, and a support mechanism for supporting the patient's arm at each of the four top corners of the flat surface.

[0007] The gripping mechanism includes a mounting base and a handle. The mounting base is fixedly connected to the top of the plate. A slider is fixedly connected to the outer circumference of the handle. The slider is slidably connected to the inner walls of both sides of the mounting base. The mounting base has a mounting groove inside, and an adjustment mechanism for adjusting the height of the handle is provided in the mounting groove.

[0008] In one possible design, the adjusting mechanism includes a threaded rod and a worm gear. The threaded rod is rotatably connected between the top and bottom inner walls of the inner receiving groove of the mounting base. The worm gear is rotatably connected between the two inner walls of the inner receiving groove of the mounting base. The top of the threaded rod rotatably passes through the top of the mounting base. The threaded rod is threadedly connected to the bottom of the slider and threaded through the slider. A worm wheel is fixedly connected to the outer circumference of the threaded rod. The worm wheel is located in a receiving groove opened inside the mounting base and meshes with the worm gear.

[0009] In one possible design, the worm gear rotates through one side of the mounting base, and the end of the worm gear located outside the mounting base is fixedly connected to a knob for easy adjustment.

[0010] In one possible design, limit blocks are fixedly connected to both sides of the slider that are far apart from each other, and limit grooves are formed on both inner walls of the mounting base, with the limit blocks slidably connected in the corresponding limit grooves.

[0011] In one possible design, the lifting mechanism includes a second mounting base, which is fixedly connected to the top of the plate. The inner walls of both sides of the second mounting base are rotatably connected to the same first rotating shaft. The outer circumferential wall of the first rotating shaft is fixedly connected to a mounting block. The top of the mounting block is fixedly connected to an arm support. The two mutually distant sides of the mounting block are fixedly connected to the second rotating shaft. The outer circumferential walls of the two second rotating shafts are rotatably connected to the same support plate.

[0012] In one possible design, the top four corners of the flat plate are provided with multiple slots for adjusting the angle of the lifting mechanism, and the support plate is engaged in one of the corresponding slots.

[0013] In this application, when a patient needs CT-guided ablation treatment for pulmonary nodules, the pillow is first placed on the bed, and the patient lies down with their head resting on the pillow. The patient then raises their hands, placing their upper and lower arms on the corresponding armrests. The support plate engages with different slots, allowing the support plate to rotate along the first rotating shaft via the second rotating shaft, thereby adjusting the angle of the armrests. Rotating the knob causes the worm gear to rotate, and the worm gear meshes with the worm wheel, causing the worm wheel to rotate. The worm wheel then rotates the threaded rod, which in turn drives the slider to move up and down via a threaded connection. Simultaneously, the limiting blocks on both sides of the slider slide up and down within the limiting grooves, preventing the slider from moving in any other way. The slider then moves the handle to a suitable height for the patient to grip, allowing the patient to grasp the handle.

[0014] In this utility model, the arm support pillow provides stable head support for the patient by setting a headrest. At the same time, the gripping mechanism set on one side of the top of the flat plate can effectively relieve muscle fatigue and soreness caused by the patient raising their arm for a long time. In addition, the design of the lifting mechanism allows the patient's arm to be reasonably supported, further reducing the burden on the patient and improving the comfort during the operation.

[0015] In this utility model, the arm support pillow can easily adjust the height of the handle through the worm gear and worm wheel transmission system in the adjustment mechanism to adapt to different surgical needs and individual differences. This flexibility ensures that the patient can maintain a stable posture during the operation, reduces the problem of blurred or offset CT imaging caused by changes in posture, thereby improving the accuracy and success rate of the operation.

[0016] In this utility model, the arm support pillow, through the cooperation of the limiting block and the limiting groove in the gripping mechanism, ensures the stability of the slider during the up and down movement, and prevents accidental slippage or deviation. At the same time, the multi-angle adjustment function of the support mechanism allows the patient's arm to obtain the optimal support angle, reducing the potential risks caused by the arm being suspended or improperly supported.

[0017] This invention provides stable head support for patients. The gripping mechanism on one side of the top of the tablet effectively alleviates muscle fatigue and soreness caused by prolonged arm elevation. Furthermore, the support mechanism provides reasonable support for the patient's arm, further reducing the burden on the patient and improving comfort during surgery. The handle height can be easily adjusted by regulating the worm gear and worm wheel transmission system within the mechanism to accommodate different surgical needs and individual differences. This flexibility ensures that patients maintain a stable posture during surgery, reducing CT image blurring or shifting caused by changes in posture, thereby improving surgical accuracy and success rate. The limiting block and limiting groove in the gripping mechanism ensure the stability of the slider during vertical movement, preventing accidental slippage or deviation. Simultaneously, the multi-angle adjustment function of the support mechanism allows the patient's arm to receive optimal support, reducing potential risks caused by the arm being suspended or improperly supported. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a pillow for supporting an arm, as proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of a gripping mechanism in a pillow that supports the arm, as proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the overall structure of the support mechanism in a pillow that supports the arm, as proposed in this utility model.

[0021] In the diagram: 1. Flat plate; 2. Headrest; 3. Grip mechanism; 31. Mounting base one; 32. Handle; 33. Slider; 34. Threaded rod; 35. Worm gear; 36. Worm wheel; 37. Knob; 38. Limit block; 39. Limit groove; 4. Lifting mechanism; 41. Mounting base two; 42. Rotating shaft one; 43. Mounting block; 44. Arm support; 45. Rotating shaft two; 46. Support plate; 5. Slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1

[0024] Reference Figures 1-3 A pillow, comprising a flat surface 1, a headrest 2, a gripping mechanism 3, and a support mechanism 4.

[0025] The flat panel 1, which serves as the base of the entire pillow, is made of sturdy and lightweight plastic. The headrest 2 is fixedly installed at the top center of the flat panel 1 by adhesive. The headrest 2 adopts an ergonomic design to support the patient's head and reduce neck pressure.

[0026] The gripping mechanism 3 includes a mounting base 31, which is securely fixed to the top side of the plate 1 with screws to ensure that it will not loosen during use. The handle 32 is designed with an arc-shaped structure that conforms to the hand grip, and a slider 33 is fixedly connected to its outer circumference. The slider 33 matches the mounting base 31 to ensure that the slider 33 can slide smoothly within the mounting base 31.

[0027] The adjusting mechanism includes a threaded rod 34, which is rotatably connected between the top and bottom of the receiving groove inside the mounting base 31 via a bearing. The top of the threaded rod 34 penetrates the top of the mounting base 31 and provides operating space. The bottom of the threaded rod 34 is threadedly connected to the bottom of the slider 33, enabling vertical transmission. Simultaneously, a worm gear 36 is fixedly mounted on the outer circumference of the threaded rod 34.

[0028] The worm gear 35 is rotatably connected between the two sides of the receiving groove inside the mounting base 31 via bearings, with one end passing through the side wall of the mounting base 31 and connected to the knob 37. The knob 37 is designed as a circular structure for easy hand rotation, and its surface can be provided with anti-slip texture. The worm gear 35 meshes with the worm wheel 36 to form a worm gear transmission mechanism.

[0029] The support mechanism includes a second mounting base 41, which is fixed to the top four corners of the plate 1 with screws. A first rotating shaft 42 is horizontally installed between the inner walls of both sides of the second mounting base 41. A mounting block 43 is fixedly connected to the first rotating shaft 42 and can rotate with the first rotating shaft 42. An arm support 44 is fixedly connected to the top of the mounting block 43 to support the patient's arm. Two second rotating shafts 45 are respectively installed on both sides of the mounting block 43. The two ends of the support plate 46 are connected to the mounting block 43 through the second rotating shafts 45, forming a rotatable structure.

[0030] Multiple slots 5 are provided at the four top corners of the flat plate 1. The depth and width of the slots 5 match the support plate 46. By inserting the support plate 46 into different slots 5, the angle of the armrest 44 can be adjusted to meet the needs of different patients.

[0031] This application can be used in the field of medical devices, or in other fields applicable to this application.

[0032] Example 2

[0033] refer to Figures 1-3 An improvement based on Embodiment 1: A pillow for supporting the arm, applied in the field of medical devices, to prevent the slider 33 from shifting during movement, limiting blocks 38 are fixedly installed on the two sides of the slider 33 that are far apart from each other. At the same time, limiting grooves 39 matching the limiting blocks 38 are opened on the inner walls of both sides of the mounting base 31. The limiting blocks 38 slide within the limiting grooves 39, ensuring that the slider 33 can only move in the vertical direction.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pillow for supporting an arm, comprising a flat surface (1), characterized in that, A headrest (2) is provided at the top center of the plate (1), a gripping mechanism (3) for the patient to grip is provided on one side of the top of the plate (1), and a support mechanism (4) for supporting the patient's arm is provided at each of the four corners of the top of the plate (1). The gripping mechanism (3) includes a mounting base (31) and a handle (32). The mounting base (31) is fixedly connected to the top of the plate (1). A slider (33) is fixedly connected to the outer circumference of the handle (32). The slider (33) is slidably connected to the inner walls of both sides of the mounting base (31). The mounting base (31) has a mounting groove inside. An adjustment mechanism for adjusting the height of the handle (32) is provided in the mounting groove. The adjustment mechanism includes a threaded rod (34) and a worm gear (35). The threaded rod (34) is rotatably connected inside the mounting base (31). Between the top and bottom inner walls of the receiving groove, the worm (35) is rotatably connected between the two inner walls of the receiving groove inside the mounting base (31). The top of the threaded rod (34) rotatably passes through the top of the mounting base (31). The threaded rod (34) is threadedly connected to the bottom of the slider (33). The threaded rod (34) is threaded through the slider (33). The outer circumference of the threaded rod (34) is fixedly connected to a worm wheel (36). The worm wheel (36) is located in the receiving groove opened inside the mounting base (31). The worm wheel (36) meshes with the worm (35).

2. The arm support pillow according to claim 1, characterized in that, The worm gear (35) rotates through one side of the mounting base (31), and a knob (37) for easy adjustment is fixedly connected to one end of the worm gear (35) outside the mounting base (31).

3. The arm support pillow according to claim 1, characterized in that, Limiting blocks (38) are fixedly connected to the two sides of the slider (33) that are far apart from each other. Limiting grooves (39) are opened on both sides of the inner wall of the mounting base (31). The limiting blocks (38) are slidably connected in the corresponding limiting grooves (39).

4. The arm support pillow according to claim 1, characterized in that, The lifting mechanism (4) includes a second mounting base (41), which is fixedly connected to the top of the plate (1). The inner walls of both sides of the second mounting base (41) are rotatably connected to the same first rotating shaft (42). The outer circumferential wall of the first rotating shaft (42) is fixedly connected to a mounting block (43). The top of the mounting block (43) is fixedly connected to an arm support (44). The two sides of the mounting block (43) that are far apart from each other are fixedly connected to the second rotating shaft (45). The outer circumferential walls of the two second rotating shafts (45) are rotatably connected to the same support plate (46).

5. A pillow for supporting an arm according to claim 4, characterized in that, The top four corners of the plate (1) are provided with multiple slots (5) for adjusting the angle of the lifting mechanism (4), and the support plate (46) is engaged in one of the corresponding slots (5).