Adjustable arm supporting device for ophthalmologic operation

Abstract

The utility model relates to the field of medical instruments, in particular to an adjustable arm supporting device for ophthalmologic operation, which comprises a base with a hollow structure, a vertical column is fixedly arranged at the top end of the base, the vertical column is of a hollow structure, a hollow rod is sleeved inside the vertical column in an up-down sliding mode, and the top end of the hollow rod is fixedly connected with a supporting plate. An angle adjusting assembly is arranged between the supporting plate and the arm support; a transmission rod is screwed in the hollow rod, and the bottom of the transmission rod is connected with a power assembly; the power assembly comprises a first motor fixedly installed in the base, a bevel gear is installed at the output end of the first motor and engaged with a transmission bevel gear, and the transmission bevel gear is fixedly installed at the bottom of the transmission rod. Height adjustment is achieved through a threaded transmission rod and a hollow rod, and a second motor controls angle adjustment of a worm mechanism. The threaded lifting mechanism and the worm mechanism can be self-locked, the supporting stability is guaranteed, the arm support is beneficial to ventilation, the oppression sense is reduced, blood circulation is enhanced, the probability of numbness of the hand is reduced, and comfort is high.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to an adjustable arm supporter for ophthalmic operations. Background Art

[0002] Many ophthalmic therapeutic procedures, such as anterior chamber paracentesis, conjunctival / corneal suture removal, and conjunctival / corneal foreign body removal, require precise treatments under a slit lamp. However, due to a lack of hand support, operators often need to keep their hands suspended in the air, which can lead to poor stability, hand shaking that can affect treatment effectiveness and duration, and soreness, fatigue, and weakness caused by prolonged hand suspension.

[0003] Currently, cylindrical foam rubber materials are commonly used in clinical practice to assist in raising the elbows. However, raising the elbows only makes up for the lack of height, and the forearms and hands are still unsupported and inconvenient during operation. In addition, the height of the existing foam rubber supports is fixed, which is not easy to adjust according to the operator's needs.

[0004] Chinese patent document CN218010278U discloses a support frame for ophthalmic surgery. The utility model discloses a support frame for ophthalmic surgery, comprising: a support base; an arm bracket, one on each side, connected to the support base for supporting a person's arms; an extension arm, fixed to the support base and extending forward; and a nose support, mounted at the ends of the extension arms and positioned above the person's face during operation. The support frame disclosed in the utility model can be used during ophthalmic surgery to help ophthalmologists operate more stably and safely, facilitating the safe and smooth completion of the surgery.

[0005] In the existing technology, the height and angle of the armrest need to be manually screwed and cannot be adjusted electrically. The self-locking function is weak and it is easy to slide and dislocate. The armrest is uncomfortable and not breathable, and the user is likely to get numbness in the hand. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the utility model provides an adjustable arm support for ophthalmic operations, which controls the lifting and angle adjustment of the arm support by adjusting the switch and has a self-locking function; the arm support is comfortable and breathable, reducing the probability of hand numbness.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An adjustable arm support for ophthalmic operations, comprising a base with a hollow structure, a column fixedly provided at the top of the base, a power assembly disposed within the base, the column being a hollow structure, a hollow rod slidably sleeved up and down inside the column, the top of the hollow rod being fixedly connected to a support plate, an arm support being provided above the support plate, and an angle adjustment assembly being provided between the support plate and the arm support; the hollow rod being provided with an internal thread, a transmission rod being threadedly connected thereto, the bottom of the transmission rod being connected to the power assembly; the power assembly comprising a first motor fixedly mounted within the base, a bevel gear being mounted at the output end of the first motor, the bevel gear meshing with a transmission bevel gear, and the transmission bevel gear being fixedly mounted at the bottom of the transmission rod;

[0009] As a preferred technical solution of the present invention, a sliding rod is provided on the outer periphery of the hollow rod, and a limiting groove is provided inside the column along the axial direction, and the limiting groove is provided corresponding to the sliding rod;

[0010] As a preferred technical solution of the present invention, the angle adjustment assembly includes arc plates symmetrically arranged on both sides of the support plate, the arc plates extending outward along the arc edges to form skirts, and the skirts are provided with arc grooves; a sliding frame is provided above the arc plate, and arc grooves are provided on both sides of the sliding frame corresponding to the arc plates, and a limiting unit is slidably installed between the grooves and the arc grooves; a worm mechanism is fixed on the top of the support plate, and the worm mechanism drives the sliding frame to slide on the arc plate;

[0011] As a preferred technical solution of the present invention, the limiting unit includes a slider slidably mounted below the skirt of the arc-shaped plate, a bolt is passed through the slider, the middle portion of the bolt has a smooth head with a thread, the bolt passes through the arc groove and is screwed to the sliding frame, and a sliding gap is formed between the sliding frame and the arc-shaped plate;

[0012] As a preferred technical solution of the present invention, the worm mechanism includes a half worm wheel fixedly mounted on the support plate, a worm is meshed with the half worm wheel, both ends of the worm are mounted on the bottom of the sliding frame through bearings, a second motor is mounted on the bottom of the sliding frame, and the output end of the second motor is connected to the end of the worm;

[0013] As a preferred technical solution of the present invention, the arm support is an arc-shaped structure with convex sides and concave middle part, and a plurality of ventilation holes are opened on the arm support;

[0014] As a preferred technical solution of the present invention, the armrest is made of silicone;

[0015] As a preferred technical solution of the present utility model, the base is made of lead;

[0016] As a preferred technical solution of the present invention, a power supply is installed inside the base;

[0017] As a preferred technical solution of the present utility model, an adjustment switch is installed on the base.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The utility model drives the transmission rod to rotate through the power component inside the base. The transmission rod is screwed to the hollow rod, driving the hollow rod to slide up and down inside the column. The hollow rod drives the arm support on the top to move up and down to achieve up and down adjustment; an arc plate is provided between the support plate and the arm support, a sliding frame is provided above the arc plate, and a worm mechanism is provided between the sliding frame and the support plate. The worm mechanism adjusts the inclination angle of the arm support.

[0020] 2. The utility model realizes up and down adjustment by cooperating with a transmission rod with a thread and a hollow rod; the sliding frame is adjusted to slide on the arc plate by a worm mechanism to complete the angle adjustment of the arm support; the thread lifting setting and the worm mechanism setting both have a self-locking function, which avoids non-subjective position changes of the support during operation and ensures the stability of the hand support during ophthalmic operations.

[0021] 3. The arm rest of the present invention adopts an arc-shaped structure with a concave middle part. The arm rest is set according to the curve of the forearm and is made of silicone material. A number of ventilation holes are provided on the arm rest. The ventilation holes are beneficial to the ventilation of the user's arm, reducing the sense of oppression, enhancing blood circulation, and reducing the probability of hand numbness. The silicone has a certain flexibility, which can enhance the comfort of use and also play a role in vibration reduction and buffering. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the support device of the present invention;

[0023] Figure 2 This is a cross-sectional schematic diagram of the threaded transmission rod installation structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation structure of the angle adjustment component of the utility model;

[0025] Figure 4 This is a schematic diagram of the split structure of the angle adjustment component of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the arm support of the present invention;

[0027] In the figure: base 10; column 11; adjustment switch 12; arm support 13; sliding frame 14; curved plate 15; first motor 16; bevel gear 17; transmission bevel gear 18; transmission rod 19; hollow rod 20; curved groove 21; slider 22; bolt 23; support plate 24; half worm gear 25; worm 26; second motor 27; slide rod 28; limit groove 29. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Any content not described in detail in this specification belongs to the prior art known to those skilled in the art. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Figure 1-Figure 5 As shown in, an adjustable arm support for ophthalmic operations includes a base 10 with a hollow structure, a column 11 is fixedly provided at the top of the base 10, and a power assembly is arranged in the base 10, the column 11 is a hollow structure, and a hollow rod 20 is slidably sleeved up and down inside the column 11, the top of the hollow rod 20 is fixedly connected to a support plate 24, an arm support 13 is provided above the support plate 24, and an angle adjustment assembly is provided between the support plate 24 and the arm support 13; the hollow rod 20 is provided with an internal thread, a transmission rod 19 is screwed in the hollow rod 20, and the bottom of the transmission rod 19 is connected to the power assembly; the power assembly includes a first motor 16 fixedly installed inside the base 10, a bevel gear 17 is installed at the output end of the first motor 16, the bevel gear 17 engages with a transmission bevel gear 18, and the transmission bevel gear 18 is fixedly installed at the bottom of the transmission rod 19.

[0031] The utility model drives the transmission rod 19 to rotate through the power component inside the base 10, and the transmission rod 19 is screwed to the hollow rod 20. The hollow rod 20 slides up and down inside the column 11, and the hollow rod 20 drives the top arm support 13 to move up and down to complete the up and down adjustment; an angle adjustment component is provided between the support plate 24 and the arm support 13, and the angle adjustment device changes the inclination of the arm support 13 to achieve the angle of the arm support 13, thereby realizing the adjustment of the hand support during ophthalmic operations.

[0032] Furthermore, a sliding rod 28 is provided on the outer periphery of the hollow rod 20 , and a limiting groove 29 is provided in the axial direction inside the column 11 , and the limiting groove 29 is provided corresponding to the sliding rod 28 .

[0033] Figure 2As shown in the figure, the transmission rod 19 is screwed into the hollow rod 20, and a sliding rod 28 is set on the outer periphery of the hollow rod 20. The sliding rod 28 is set along the axis. The sliding rod 28 slides up and down in the limiting groove 29 to realize the limiting function. When the transmission rod 19 rotates, the hollow rod 20 is driven to move up and down.

[0034] Furthermore, the angle adjustment assembly includes arc plates 15 symmetrically arranged on both sides of the support plate 24, and the arc plates 15 extend outward along the arc edges to form skirts, and the skirts are provided with arc grooves 21; a sliding frame 14 is provided above the arc plate 15, and arc grooves are provided on both sides of the sliding frame 14 corresponding to the arc plate 15, and a limiting unit is slidably installed between the grooves and the arc grooves 21; a worm mechanism is fixed to the top of the support plate 24, and the worm mechanism drives the sliding frame 14 to slide on the arc plate 15.

[0035] Figure 3 and Figure 4 As shown in the figure, arc-shaped grooves are provided on both sides of the sliding frame 14 corresponding to the arc-shaped plate 15. The arc-shaped grooves of the sliding frame 14 slide along the arc on the skirt of the arc-shaped plate 15, thereby changing the angle of the sliding frame 14. A sliding limit unit is installed between the groove and the arc groove 21. The sliding limit unit connects the arc-shaped plate 15 and the sliding frame 14 together, and the two maintain a certain gap so that they can slide relative to each other but do not separate.

[0036] The worm mechanism drives the sliding frame 14 to slide on the arc plate 15 to adjust the angle; the worm mechanism has a self-locking function; it should be noted that the utility model adjusts the height by lifting the screw, and at the same time, the thread lifting setting has a self-locking function, which avoids non-subjective changes in the support during operation and maintains the stability of the angle.

[0037] Furthermore, the limiting unit includes a slider 22 slidably mounted under the skirt of the arc-shaped plate 15, and a bolt 23 is passed through the slider 22. The bolt 23 has a smooth head with a thread in the middle. The bolt 23 passes through the arc-shaped groove 21 and is screwed to the sliding frame 14. There is a sliding gap between the sliding frame 14 and the arc-shaped plate 15.

[0038] Figure 3 As shown in FIG, the slider 22 is adapted to the curved surface of the skirt of the curved plate 15. The end surface of the slider 22 is set to an arc to facilitate movement with the sliding frame 14. The slider 22, the curved plate 15 and the sliding frame 14 are connected together by bolts 23. The bolts 23 and the sliding frame 14 are fixedly connected by threads. The bolts 23, the slider 22 and the curved plate 15 are movably connected to ensure a sliding clearance.

[0039] Furthermore, the worm mechanism includes a half worm gear 25 fixedly mounted on the support plate 24, a worm 26 is meshed on the half worm gear 25, both ends of the worm 26 are mounted on the bottom of the sliding frame 14 through bearings, and a second motor 27 is installed at the bottom of the sliding frame 14, and the output end of the second motor 27 is connected to the end of the worm 26.

[0040] Figure 3 and Figure 4 As shown in the figure, both ends of the worm 26 are fixedly connected to the sliding frame 14 through bearings, and a second motor 27 is fixed on the outer side of the sliding frame 14. The output end of the second motor 27 is transmission-connected to the end of the worm 26; when the second motor 27 rotates, it drives the worm 26 to rotate on the sliding frame 14, and the worm 26 engages the half worm gear 25. Since the half worm gear 25 is fixed, the worm 26 drives the sliding frame 14 to rotate along the arc 15 around the arc plate.

[0041] Furthermore, the arm support 13 is an arc-shaped structure with convex sides and concave middle, and a plurality of ventilation holes are provided on the arm support 13.

[0042] Figure 5 As shown in the figure, the arm support 13 is an arc-shaped structure with a concave middle part, arranged according to the curve of the forearm, and has ventilation holes, which are beneficial for the ventilation of the doctor's arm, enhance blood circulation, and reduce the probability of hand numbness.

[0043] Furthermore, the armrest 13 is made of silicone.

[0044] The armrest 13 is made of silica gel, which has the function of vibration reduction and buffering. The silica gel has a certain flexibility and can enhance the comfort of use.

[0045] Furthermore, the base 10 is made of lead.

[0046] The base 10 is made of lead, and the stability of the base 10 is ensured by utilizing the physical property of lead having a high density.

[0047] Furthermore, a power supply is installed inside the base 10 .

[0048] A power supply is installed inside the base 10 and is electrically connected to the first motor 16 and the second motor 27 through a guide. The power supply and the first motor 16 and the second motor 27 are both forward and reverse motors, and the power supply and the first motor 16 and the second motor 27 are all existing technologies.

[0049] Furthermore, an adjustment switch 12 is installed on the base 10 .

[0050] The regulating switch 12 controls the first motor 16 and the second motor 27 respectively, and the direction of rotation is adjusted by toggling in different directions.

[0051] Working principle:

[0052] 1. Start the first motor 16 to drive the bevel gear 17. The bevel gear 17 engages with the transmission bevel gear 18, driving the transmission rod 19 to rotate. The transmission rod 19 is externally screwed to the hollow rod 20 (the column 11 radially limits the outer periphery of the hollow rod 20), so that the hollow rod 20 slides up and down inside the column 11. The hollow rod 20 drives the top arm support 13 to move up and down, completing the up and down adjustment;

[0053] 2. Start the second motor 27 to drive the worm 26, which engages the half worm gear 25. Since the half worm gear 25, the support plate 24 and the curved plate 15 are fixedly connected, the half worm gear 25 drives the sliding frame 14 to move along the arc on the curved plate 15 to adjust the tilt angle.

[0054] The thread lifting setting and the worm mechanism setting both have a self-locking function to avoid non-subjective position changes of the support during operation, ensuring the stability of the hand support during ophthalmic operations.

[0055] The above embodiments are used to illustrate the technical concept of the present invention. However, the present invention is not limited to the above embodiments, which does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that any improvements to the present invention fall within the scope of protection and disclosure of the present invention.

Claims

1. An adjustable arm support for ophthalmic operation, comprising a base (10) with a hollow structure, a column (11) fixedly provided at the top of the base (10), and a power assembly arranged in the base (10), characterized in that: The column (11) is a hollow structure, a hollow rod (20) is slidably sleeved inside the column (11), the top end of the hollow rod (20) is fixedly connected to a support plate (24), an arm support (13) is arranged above the support plate (24), and an angle adjustment component is arranged between the support plate (24) and the arm support (13); The hollow rod (20) is provided with an internal thread, the hollow rod (20) is internally threadedly connected to the transmission rod (19), and the bottom of the transmission rod (19) is connected to the power assembly; The power assembly comprises a first motor (16) fixedly mounted inside a base (10); a bevel gear (17) is mounted on the output end of the first motor (16); the bevel gear (17) engages with a transmission bevel gear (18); and the transmission bevel gear (18) is fixedly mounted on the bottom of a transmission rod (19).

2. The adjustable ophthalmic operation arm support according to claim 1, characterized in that: A sliding rod (28) is provided on the outer periphery of the hollow rod (20), and a limiting groove (29) is provided in the axial direction inside the column (11), and the limiting groove (29) is provided corresponding to the sliding rod (28).

3. The adjustable ophthalmic operation arm support according to claim 1, characterized in that: The angle adjustment assembly comprises arc plates (15) symmetrically arranged on both sides of a support plate (24), the arc plates (15) extending outward along the arc edges to form skirts, and the skirts are provided with arc grooves (21); a sliding frame (14) is arranged above the arc plate (15), and arc grooves are provided on both sides of the sliding frame (14) corresponding to the arc plates (15), and a limiting unit is slidably installed between the grooves and the arc grooves (21); a worm mechanism is fixed on the top of the support plate (24), and the worm mechanism drives the sliding frame (14) to slide on the arc plate (15).

4. The adjustable ophthalmic operation arm support according to claim 3, characterized in that: The limiting unit comprises a slider (22) slidably mounted below the skirt of the arc-shaped plate (15); a bolt (23) is passed through the slider (22); the bolt (23) has a smooth head with a thread in the middle; the bolt (23) passes through the arc-shaped groove (21) and is screwed to the sliding frame (14); and a sliding gap is provided between the sliding frame (14) and the arc-shaped plate (15).

5. The adjustable ophthalmic operation arm support according to claim 3, characterized in that: The worm mechanism comprises a half worm wheel (25) fixedly mounted on a support plate (24), a worm (26) being meshed with the half worm wheel (25), two ends of the worm (26) being mounted on the bottom of a sliding frame (14) via bearings, a second motor (27) being mounted on one side of the sliding frame (14), and an output end of the second motor (27) being transmission-connected to an end of the worm (26).

6. The adjustable ophthalmic operation arm support according to claim 1, characterized in that: The arm support (13) is an arc-shaped structure with convex sides and concave middle part, and a plurality of ventilation holes are provided on the arm support (13).

7. The adjustable ophthalmic operation arm support according to claim 6, characterized in that: The material of the arm support (13) is silica gel.

8. The adjustable ophthalmic operation arm support according to claim 1, characterized in that: The base (10) is made of lead.

9. The adjustable ophthalmic operation arm support according to claim 1, characterized in that: A power supply is installed inside the base (10).

10. The adjustable arm support for ophthalmic operations according to any one of claims 1 to 9, characterized in that: An adjusting switch (12) is installed on the base (10).

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