Arm fixing device for cardiology department interventional therapy

Abstract

The invention discloses an arm fixing device for cardiology department interventional therapy, and particularly relates to the field of medical instruments. Comprising a base; the positioning assembly is arranged on the base, and the positioning assembly can fix the base on an operating bed; the fixing pipe is arranged on the base outside the positioning assembly; the air cylinder is arranged in the fixed pipe; the threaded rod is arranged at the free end of the piston on the air cylinder; the first supporting plate is in threaded connection with the threaded rod; the second supporting plate is rotationally connected to the end part of the first supporting plate through a locking bolt; the two sets of binding assemblies are arranged on the first supporting plate and the second supporting plate respectively, and the two sets of binding assemblies are used for fixing the large arm and the small arm of the patient respectively. By the adoption of the technical scheme, the problem that in an existing radial artery operation, the arm fixing flexibility is poor is solved, and a proper arm can be conveniently selected for the radial artery operation according to the actual situation of a patient.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to an arm fixation device for interventional cardiology treatment. Background Art

[0002] In the interventional treatment of cardiovascular diseases, the transradial approach has become a common minimally invasive surgical method. Compared with the traditional femoral artery approach, the transradial approach has the advantages of rapid postoperative recovery, fewer complications, and higher patient comfort, so it has been widely used clinically. However, there are individual differences in the anatomical structure of the radial artery. Especially in some patients, the radial artery of the left hand may be more suitable as the surgical access. This difference in anatomical structure requires that the position of the patient's arm must be flexibly adjusted during the operation to ensure the smooth progress of the operation and the safety of the patient.

[0003] Currently, most of the commonly used arm fixation devices in clinical practice are of fixed design and cannot be flexibly adjusted according to the patient's anatomical structure and surgical needs. Such fixed devices usually can only fix the patient's arm in a certain specific position and cannot adapt to the arm lengths, angles of different patients, and the dynamic needs during the operation. Especially in transradial artery surgery, due to the superficial anatomical position of the radial artery and its small blood vessel diameter, precise control of the position and angle of the arm is required during the operation to avoid vascular injury, spasm, or other complications.

[0004] In addition, the existing arm fixation devices have certain limitations in design and function. For example, although some devices provide basic fixation functions, they lack support and stability for the patient's arm, resulting in easy movement of the patient's arm during the operation, which affects the accuracy and safety of the operation. Another some devices provide adjustable functions, but the adjustment range is limited and cannot meet the needs of different patients. Especially when the arm needs to be fixed at a specific angle or height, the existing devices are often difficult to achieve.

[0005] During actual operations, doctors usually need to manually adjust the position of the patient's arm according to the patient's anatomical structure and surgical needs. This manual adjustment not only increases the complexity and time cost of the operation, but also may cause discomfort to the patient and an increase in the surgical risk. Especially during a long operation, the patient's arm may become fatigued, numb, or even painful due to improper fixation, affecting the smooth progress of the operation.

[0006] Therefore, developing an arm fixation device that can be flexibly adjusted according to the patient's anatomical structure and surgical needs has become an important requirement in interventional cardiology treatment. Summary of the Invention

[0007] The present invention aims to provide an arm fixing device for cardiovascular interventional therapy, which solves the problem of poor flexibility in arm fixation in existing radial artery surgeries.

[0008] To achieve the above object, the technical solution of the present invention is as follows: An arm fixing device for cardiovascular interventional therapy, comprising:

[0009] A base;

[0010] A positioning component, which is arranged on the base and can firmly fix the base on the treatment bed or the operating table;

[0011] A fixing tube, which is arranged on the base outside the positioning component;

[0012] A cylinder, which is arranged inside the fixing tube;

[0013] A threaded rod, which is arranged at the free end of the piston on the cylinder;

[0014] A first support plate, which is threadedly connected to the threaded rod;

[0015] A second support plate, which is rotatably connected to the end of the first support plate through a locking bolt, and the second support plate is flush with the surface of the first support plate;

[0016] Two sets of binding components, which are respectively arranged on the first support plate and the second support plate, and are respectively used to fix the patient's upper arm and forearm.

[0017] Further, the positioning component includes:

[0018] A pressing plate, which is sleeved outside the fixing tube;

[0019] Multiple limiting holes, which are arranged at the bottom of the pressing plate;

[0020] A first spring, which is connected between the pressing plate and the base;

[0021] A first chute, which is opened on the base;

[0022] A limiting tube, which is slidably connected in the first chute;

[0023] A second spring, which is arranged inside the limiting tube and is always in a compressed state;

[0024] A limiting rod, which is slidably connected in the limiting tube, one end of the limiting rod inside the limiting tube is fixedly connected to the second spring, and the other end of the limiting rod can slide into any one of the limiting holes;

[0025] The first pressing rod is arranged on the limiting rod.

[0026] Furthermore, a second sliding groove is formed in the limiting tube, the first pressing rod is slidably connected in the second sliding groove, a top block is slidably connected to the bottom of the first pressing rod, and the height of the top block is equal to the distance between the first pressing rod and the bottom wall of the second sliding groove when the first pressing rod abuts against the top wall of the second sliding groove.

[0027] Furthermore, the binding assembly includes:

[0028] Two sliding rods, which are symmetrically arranged on the first support plate or the second support plate;

[0029] Two first sliding rings, which are respectively slidably connected to the two sliding rods;

[0030] Two binding straps, which respectively pass through the upper side or the lower side of the two first sliding rings;

[0031] Two limiters, which are respectively slidably connected to the two binding straps, the two limiters are arranged at intervals outside the sliding rods, and the limiters are used to limit the movement of the binding straps.

[0032] Furthermore, the limiter includes:

[0033] A limit frame, in which two through grooves for the two binding straps to pass through are formed;

[0034] Two fixing rods, which are symmetrically arranged, and one end of each fixing rod abuts against the binding strap;

[0035] Two second pressing rods, which are symmetrically arranged on the upper and lower sides of the limit frame, one end of the second pressing rod is located in the through groove and abuts against the binding strap, and the other end is located outside the limit frame;

[0036] Two return springs, which are connected between the second pressing rod and the inner wall of the limit frame, and the return springs are always in a compressed state.

[0037] Furthermore, second sliding rings are respectively slidably connected to the two sliding rods on the second support plate, a rotating rod with threads at both ends is threadedly connected between the two second sliding rings, a rubber pad is arranged in the middle of the rotating rod, the cross-sectional shape of the rubber pad is cam-shaped, and the rubber pad is eccentrically arranged on the rotating rod.

[0038] Compared with the prior art, the beneficial effects of this solution:

[0039] 1. This solution provides an arm fixation device for cardiovascular interventional therapy. The height and direction of the first support plate and the second support plate can be adjusted through the threaded rod and the cylinder, so as to select a suitable arm for fixation and surgery according to the anatomical structure of blood vessels during radial artery surgery. The operation is simple and convenient, enhancing the flexibility of this solution.

[0040] 2. This solution can fix this device beside the treatment bed or the operating table by using the positioning component. By stepping on the pressing plate, the second spring and the second pressing plate are driven to move downward, so that the second pressing plate is located below the bed body. Thus, the elastic force of the second spring is used to limit the pressing plate and the second pressing plate, and the acting force is transmitted to the base through the pressing plate, effectively maintaining the stability of this device.

[0041] 3. This solution can clamp and limit the upper arm and forearm of the patient through the binding component, and at the same time, the clamping and limiting position can be adjusted according to the actual situation, which can be applied to different patients and enhances the application range of this solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is an axonometric view of an arm fixation device for cardiovascular interventional therapy in Embodiment 1;

[0043] Figure 2 is a front view of an arm fixation device for cardiovascular interventional therapy in Embodiment 1;

[0044] Figure 3 is Figure 2 a partial enlarged view of A in

[0045] Figure 4 is a top view of an arm fixation device for cardiovascular interventional therapy in Embodiment 1;

[0046] Figure 5 is Figure 4 a cross-sectional view taken along B-B in

[0047] Figure 6 is an axonometric view of an arm fixation device for cardiovascular interventional therapy in Embodiment 2;

[0048] Figure 7 is a top view of an arm fixation device for cardiovascular interventional therapy in Embodiment 2.

[0049] The reference numerals in the attached drawings of the specification include: base 1, pressing plate 2, limiting hole 3, first spring 4, first sliding groove 5, limiting tube 6, second sliding groove 7, second spring 8, limiting rod 9, first pressing rod 10, top block 11, fixed tube 12, air cylinder 13, threaded rod 14, first support plate 15, first threaded hole 16, second support plate 17, connecting block 18, locking bolt 19, sliding rod 20, first sliding ring 21, strap 22, limiting frame 23, fixed rod 24, second pressing rod 25, return spring 26, second sliding ring 27, rotating rod 28, rubber pad 29. Detailed implementation manners

[0050] The present invention will be further described in detail below through specific implementation manners:

[0051] Embodiment

[0052] As Figures 1 to 5 shown, an arm fixing device for cardiovascular interventional therapy includes:

[0053] Base 1, and the base 1 adopts a square structure.

[0054] Positioning assembly, the positioning assembly is arranged on the base 1, and the positioning assembly can stably arrange the base 1 under the treatment bed or the operating table. In this embodiment, the positioning assembly includes:

[0055] Pressing plate 2, the pressing plate 2 is sleeved on the fixed tube 12, and a through hole for the fixed tube 12 to pass through is opened in the middle of the pressing plate 2.

[0056] Multiple limiting holes 3, the multiple limiting holes 3 are distributed at intervals on the bottom of the pressing plate 2. In this embodiment, the number of the limiting holes 3 is two, and the depths of the two limiting holes 3 are different. The depth of the limiting hole 3 on the left side is twice the depth of the limiting hole 3 on the right side. When the limiting rod 9 is located in the limiting hole 3 on the left side, the pressing plate 2 is parallel to the base 1. When the limiting rod 9 is located in the limiting hole 3 on the right side, the pressing plate 2 inclines left and downward, so as to clamp and fix the device beside the treatment bed or the operating table by means of the pressing plate 2 and the base 1.

[0057] First spring 4, the first spring 4 is connected between the bottom of the pressing plate 2 and the base 1, and the first spring 4 is wrapped outside the through hole.

[0058] First sliding groove 5, the first sliding groove 5 is opened on the right side of the base 1, and the length of the first sliding groove 5 is greater than the distance between the two limiting holes 3.

[0059] Limiting tube 6, the limiting tube 6 is slidably connected in the first sliding groove 5, and a second sliding groove 7 is opened on the right side of the limiting tube 6.

[0060] Second spring 8, the second spring 8 is arranged in the limiting tube 6, and the second spring 8 is always in a compressed state in this device.

[0061] The limiting rod 9 is slidably connected within the limiting tube 6. The lower end of the limiting rod 9 is fixedly connected to the second spring 8, and the upper end of the limiting rod 9 can slide into any one of the limiting holes 3.

[0062] The first pressing rod 10 is adhered to the lower side of the limiting rod 9. The pressing rod 2510 is slidably connected within the second chute 7. In this embodiment, a top block 11 is slidably connected to the bottom of the first pressing rod 10. The top block 11 is made of rubber, and the height of the top block 11 is equal to the distance between the bottom of the first pressing rod 10 and the bottom wall of the second chute 7 when the first pressing rod 10 abuts against the top wall of the second chute 7. After the top block 11 slides into the second chute 7, the first pressing rod 10 can be kept in a limited and fixed state by means of the top block 11, avoiding the problem that the treatment effect is affected by the stability of the fixing of the pressing plate 2 and the base 1 during the treatment process, and improving the reliability of this solution.

[0063] The fixed tube 12 is welded to the middle of the base 1. The fixed tube 12 is located outside the first chute 5.

[0064] The air cylinder 13 is arranged within the fixed tube 12.

[0065] The threaded rod 14 is arranged at the free end of the piston of the air cylinder 13. The length of the threaded rod 14 can ensure that the first support plate 15 can at least rotate, enabling this solution to meet the fixation of the patient's left or right hand according to the actual situation.

[0066] On the left side of the first support plate 15, there is a first threaded hole 16. The threaded rod 14 is threadedly connected within the first threaded hole 16.

[0067] On the bottom of the left side of the second support plate 17, there is a connecting block 18, and a through hole is provided on the connecting block 18. On the bottom of the right side of the first support plate 15, there is a second threaded hole. The diameter of the second threaded hole is smaller than the inner diameter of the through hole on the connecting block 18. A locking bolt 19 is threadedly connected within the second threaded hole. By means of the locking bolt 19, the relative positions of the second support plate 17 and the first support plate 15 can be kept unchanged, and the surfaces of the second support plate 17 and the first support plate 15 are flush with each other.

[0068] Two sets of binding assemblies are respectively arranged on the first support plate 15 and the second support plate 17. The two sets of binding assemblies are respectively used to fix the patient's upper arm and forearm. Each binding assembly includes:

[0069] Two sliding rods 20 are symmetrically arranged on the front and rear sides of the upper surface of the first support plate 15 or the second support plate 17.

[0070] Two first slip rings 21, and the two first slip rings 21 are respectively slidably connected to two slide bars 20.

[0071] Two straps 22, and the two straps 22 respectively pass through the upper side or the lower side of two corresponding first slip rings 21. Through grooves for the straps 22 to slide are formed on the upper side or the lower side of the two first slip rings 21.

[0072] Two limiters, and the two limiters are respectively slidably connected to the two straps 22. The two limiters are arranged at intervals outside the slide bars 20, and the limiters are used to limit the movement of the straps 22. In this embodiment, the limiter includes:

[0073] A limit frame 23, and two through grooves for the two straps 22 to pass through are formed on the limit frame 23.

[0074] Two fixing rods 24, and the two fixing rods 24 are symmetrically arranged in the middle of the limit frame 23. The free end of each fixing rod 24 abuts against the strap 22.

[0075] Two second pressing rods 25, and the two second pressing rods 25 are symmetrically arranged on the upper and lower sides of the limit frame 23. One end of the second pressing rod 25 is located in the through groove and abuts against the strap 22, and the other end of the second pressing rod 25 is located outside the limit frame 23. A through hole for the pressing rod 2510 to pass through is formed on the limit frame 23.

[0076] Two return springs 26, and the two return springs 26 are connected between the second pressing rod 25 and the inner wall of the limit frame 23. The return springs 26 are always in a compressed state.

[0077] The working process of this embodiment is as follows:

[0078] Before fixing the patient's arm, first place the pressing plate 2 and the base 1 on the upper and lower sides of the edges of the treatment bed and the operating bed respectively. Then, by pressing down the first pressing rod 10, the limit rod 9 slides out of the left limit hole 3, and by moving the limit tube 6, the limit rod 9 slides into the right limit hole 3, so as to jack up the pressing plate 2 upward by means of the second spring 8. At this time, the pressing plate 2 inclines towards the lower left side, realizing the positioning of the pressing plate 2 and the base 1 for this fixing device. At this time, the first pressing rod 10 abuts against the top wall of the second chute 7. Sliding the top block 11 into the second chute 7 can keep the relative position of the pressing plate 2 unchanged, improving the reliability of the positioning of this fixing device.

[0079] After the positioning component completes the positioning, determine whether to fix the left hand or the right hand according to the anatomical structure of the blood vessel. At this time, by rotating the first support plate 15 relative to the threaded rod 14, the first support plate 15 can be adjusted to the corresponding support direction to fixedly support the left hand or the right hand. Start the cylinder 13 to raise the first support plate 15 to an appropriate position. At this time, place the patient's arm on the first support plate 15 and the second support plate 17, and use the first support plate 15 and the second support plate 17 to support the upper arm and the lower arm respectively. When placing the arm, it needs to pass through the middle of the two straps 22, and use the two straps 22 to clamp and fix the upper arm or the lower arm. When adjusting the fixed position, only need to pull the two second pressing rods 25 at the same time to make the second pressing rods 25 away from the strap 22 to release the extrusion fixation on it. At this time, by moving the limit frame 23, the position of the limiter can be moved. After the movement is completed, release the second pressing rod 25, and the strap 22 can be clamped and fixed again under the action of the return spring 26. At the same time, by sliding the sliding ring, the specific position of the binding component to limit the arm can also be adjusted, so that it can be appropriately adjusted according to the length or fatness of the patient's arm, further enhancing the flexibility of the present solution.

[0080] Embodiment 2

[0081] As Figure 6 and Figure 7 shown, the difference between this embodiment and the embodiment is only that: in this embodiment, two second sliding rings 27 are respectively slidably connected to the two sliding rods 20 on the second support plate 17, and a rotating rod 28 with threads at both ends is threadedly connected between the two second sliding rings 27. A rubber pad 29 is provided in the middle of the rotating rod 28. The cross-sectional shape of the rubber pad 29 is cam-shaped, and the rubber pad 29 is eccentrically arranged on the rotating rod 28.

[0082] The difference between the working process of this embodiment and the working process of the embodiment is only that: the rubber pad 29 can provide a certain supporting force for the patient's arm as a handrest, relieving the fatigue of the arm; and by rotating the rod 28 to adjust the supporting surface of the rubber pad 29 for the patient's arm, so as to realize the adjustment of the arm height through the cam-shaped structure of the rubber pad 29. For different patients, the supporting position can also be adjusted by sliding the second sliding ring 27, enhancing the application range of the present solution.

[0083] The above are only the embodiments of the present invention. The specific structures and / or characteristics and other common knowledge well known in the solution are not described in detail here. 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, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like described in the specification can be used to interpret the content of the claims.

Claims

1. An arm fixation device for interventional treatment in cardiology, characterized in that: include: Base (1); A positioning component, the positioning component being arranged on the base (1), and the positioning component being capable of firmly fixing the base (1) on a treatment bed or an operating bed; A fixing tube (12), wherein the fixing tube (12) is arranged on the base (1) outside the positioning assembly; A cylinder (13), wherein the cylinder (13) is arranged in the fixed pipe (12); A threaded rod (14), the threaded rod (14) being arranged on the free end of the piston of the cylinder (13); A first support plate (15), wherein the first support plate (15) is threadedly connected to the threaded rod (14); A second support plate (17), the second support plate (17) being rotatably connected to the end of the first support plate (15) via a locking bolt (19), the second support plate (17) being flush with the surface of the first support plate (15); Two sets of binding assemblies are respectively arranged on a first support plate (15) and a second support plate (17), and are respectively used to fix the upper arm and the lower arm of a patient.

2. The arm fixing device for interventional treatment in cardiology according to claim 1, characterized in that: The positioning component comprises: A pressing plate (2), wherein the pressing plate (2) is sleeved outside the fixed tube (12); A plurality of limiting holes (3), wherein the plurality of limiting holes (3) are arranged at the bottom of the pressing plate (2); A first spring (4), the first spring (4) being connected between the pressure plate (2) and the base (1); A first slide groove (5), wherein the first slide groove (5) is provided on the base (1); A limiting tube (6), wherein the limiting tube (6) is slidably connected in the first sliding groove (5); A second spring (8), wherein the second spring (8) is arranged in the limiting tube (6), and the second spring (8) is always in a compressed state; A limiting rod (9), wherein the limiting rod (9) is slidably connected in the limiting tube (6), one end of the limiting rod (9) located in the limiting tube (6) is fixedly connected to the second spring (8), and the other end of the limiting rod (9) can slide into any limiting hole (3); A first pressing rod (10), wherein the first pressing rod (10) is arranged on the limiting rod (9).

3. The arm fixing device for interventional treatment in cardiology according to claim 2, characterized in that: The limiting tube (6) is provided with a second slide groove (7), the first pressing rod (10) is slidably connected in the second slide groove (7), the bottom of the first pressing rod (10) is slidably connected with a top block (11), and the height of the top block (11) is equal to the distance between the first pressing rod (10) and the bottom wall of the second slide groove (7) when the first pressing rod (10) abuts against the top wall of the second slide groove (7).

4. The arm fixing device for interventional treatment in cardiology according to claim 1, characterized in that: The binding assembly comprises: Two sliding rods (20), the two sliding rods (20) being symmetrically arranged on the first support plate (15) or the second support plate (17); Two first sliding rings (21), the two first sliding rings (21) being slidably connected to the two sliding rods (20) respectively; Two binding straps (22), the two binding straps (22) respectively passing through the upper side or the lower side of the two first slip rings (21); Two limiters are respectively slidably connected to the two binding straps (22), and the two limiters are arranged at intervals on the outside of the slide bar (20). The limiters are used to limit the movement of the binding straps (22).

5. The arm fixing device for interventional treatment in cardiology according to claim 4, characterized in that: The stopper comprises: A limiting frame (23), wherein the limiting frame (23) is provided with two through slots for two binding straps (22) to pass through; Two fixing rods (24), the two fixing rods (24) are symmetrically arranged, and one end of each fixing rod (24) abuts against the binding belt (22); Two second pressing rods (25), the two second pressing rods (25) are symmetrically arranged on the upper and lower sides of the limiting frame (23), and one end of the second pressing rod (25) is located in the through groove and abuts against the binding belt (22), and the other end is located outside the limiting frame (23); Two return springs (26), the two return springs (26) are connected between the second pressing rod (25) and the inner wall of the limiting frame (23), and the return springs (26) are always in a compressed state.

6. The arm fixing device for interventional treatment in cardiology according to claim 4, characterized in that: The two sliding rods (20) on the second support plate (17) are respectively slidably connected with second sliding rings (27); a rotating rod (28) with threads at both ends is threadedly connected between the two second sliding rings (27); a rubber pad (29) is provided in the middle of the rotating rod (28); the cross-section of the rubber pad (29) is cam-shaped; the rubber pad (29) is eccentrically arranged on the rotating rod (28).

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