Practical seat for interventional operator

Abstract

The practical seat comprises a first supporting rod, the bottom of the first supporting rod is fixedly connected with a connecting disc, the first supporting rod is hollow, a second supporting rod is installed in the first supporting rod in a sliding mode, and threads are formed in the surface of the lower half portion of the second supporting rod. The top of the second supporting rod is fixedly connected with a chair seat, the top of the first supporting rod is fixedly connected with a limiting ring, a worm wheel is rotatably installed on the limiting ring, the upper end face of the worm wheel is fixedly connected with a rotating ring, the rotating ring is in threaded connection with the second supporting rod, and the side edge of the limiting ring is fixedly connected with a mounting box. A worm is rotationally mounted in the mounting box, and one side of the worm is meshed with the worm gear. According to the utility model, the height of the seat can be adjusted by treading the pedal by an interventional operator, so that the risk that the hands of the operator are polluted in the operation process is reduced, and the sanitation in the operation process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a practical chair for interventional surgeons. Background Art

[0002] Interventional surgery is a minimally invasive or ultra-minimally invasive surgical treatment method for systemic tumor diseases, vascular diseases, etc., using special interventional equipment such as puncture needles, vascular sheaths, catheters, guide wires, stents, coils, etc., under the guidance of ultrasound, CT, MRI or DSA. Compared with traditional surgery, interventional surgery has the advantages of lower risk, less trauma and faster recovery.

[0003] In order to further understand the chair used in surgical procedures in the prior art, after searching, a Chinese patent with announcement number: CN220046101U discloses a surgical chair, including a chair plate, a tray is slidably connected to the inside of the chair plate, a handle is fixedly connected to the outside of the tray, a first connecting block is fixedly provided at the bottom of the chair plate, the first connecting block is rotatably connected to an upper support member, the upper support member is movably connected to a lower support member, an adjusting rod is provided between the upper support member and the lower support member, both ends of the adjusting rod are connected to connecting members, the lower support member is rotatably connected to a second connecting block at one end away from the upper support member, the bottom of the second connecting block is fixedly connected to a moving seat, the bottom of the second connecting block is also connected to a tripod, the tripod is connected to the second connecting block through a connecting rod, and a knob is provided on the top of the connecting rod.

[0004] After exploration and analysis, the patent has the following shortcomings in actual use: the patent adjusts the height of the chair board appropriately by rotating the rotary handle forwards and backwards, but the patent requires the interventionist to adjust the seat height by rotating the rotary handle by hand, so the interventionist's hand comes into contact with the rotary handle, which can easily cause contamination to the interventionist's hand, and during the operation, the interventionist adjusts the seat height and the patient's blood or body fluids will be contaminated on the rotary handle, causing contamination of the seat, which has an adverse effect on the hygiene of the interventional surgery process. Utility Model Content

[0005] Aiming at the technical problem that the existing interventional surgeon needs to touch the seat with his hands to adjust the seat height, which is not conducive to maintaining hygiene during the operation, the utility model provides a practical seat for the interventional surgeon.

[0006] The technical solution adopted by the utility model is: it includes a first support rod, a connecting plate is fixedly connected to the bottom of the first support rod, the first support rod is hollow, a second support rod is slidably installed inside the first support rod, a thread is provided on the lower half surface of the second support rod, a seat is fixedly connected to the top of the second support rod, a limiting ring is fixedly connected to the top of the first support rod, a worm gear is rotatably installed on the limiting ring, a swivel is fixedly connected to the upper end surface of the worm gear, the swivel and the second support rod are threadedly connected, a mounting box is fixedly connected to the side of the limiting ring, a worm is rotatably installed inside the mounting box, one side of the worm is meshed with the worm wheel, a driving mechanism is provided on one side of the mounting box, and the driving mechanism is used to drive the worm to rotate to lift the seat.

[0007] Furthermore, the driving mechanism includes an adjusting disk arranged on one side of the installation box, a ratchet rotatably installed inside the adjusting disk, and a pawl rotatably installed inside the adjusting disk, the end face of the ratchet is fixedly connected to a rotating shaft, the rotating shaft is coaxially fixedly connected to the worm, the outer sleeve of the rotating shaft is provided with a torsion spring, the torsion spring is arranged between the installation box and the adjusting disk, the outer side of the adjusting disk is fixedly connected to a connecting rod, and a foot pedal is fixedly installed at one end of the connecting rod.

[0008] By adopting the above technical solution, the interventionalist can adjust the seat height with his feet to avoid hand contact.

[0009] Furthermore, the pawls are provided in two groups, a cam is provided between the two groups of pawls, the cam is rotatably installed inside the adjusting disk, a spring is fixedly installed on one side of the two groups of pawls, the end of the spring away from the pawl is fixedly connected to the inner wall of the adjusting disk, and a paddle is rotatably installed on the outer surface of the adjusting disk.

[0010] By adopting the above technical solution, the rise and fall of the seat height can be controlled.

[0011] Furthermore, a slide groove is provided on the outer surface of the second support rod, a limit block is slidably installed in the slide groove, and the limit block is fixedly connected to the inner wall of the limit ring.

[0012] By adopting the above technical solution, it is ensured that the seat height can be adjusted.

[0013] Furthermore, a sleeve is rotatably mounted on the outer portion of the upper end of the second support rod, a connecting rod is fixedly connected to the outer portion of the sleeve, and a placement plate is fixedly connected to the top end of the connecting rod.

[0014] By adopting the above technical solution, it is convenient for interventional surgeons to take medical devices.

[0015] Furthermore, a leg is fixedly connected to the side of the connecting plate, and a universal wheel is fixedly installed under the leg.

[0016] By adopting the above technical solution, it is convenient to move the chair and adjust the position of the interventionalist.

[0017] The beneficial effects of the utility model are as follows: the position of the second support rod inside the first support rod can be adjusted by the foot pedal in conjunction with the ratchet, pawl, worm and worm wheel to adjust the overall height of the seat, so that the interventional surgeon can adjust the seat height with his feet, avoiding the surgeon from touching the seat with his hands to adjust the height, reducing the risk of the surgeon's hands being contaminated during the operation, and ensuring hygiene during the operation;

[0018] By setting two sets of pawls, in conjunction with springs, paddles and cams, the seat can be raised and lowered by pressing the foot pedal, thereby improving the practicality and convenience of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the limiting ring and the worm gear in the utility model;

[0021] Figure 3 It is a structural schematic diagram of the adjustment disk in the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the middle installation box of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the adjustment disk in the utility model;

[0024] Figure 6 It is a schematic cross-sectional structure diagram of the first support rod and the second support rod of the utility model;

[0025] Figure 7 It is a schematic diagram of the structure of the limit block and the slide slot in the utility model.

[0026] The numbers in the figure are: 1. first support rod; 2. second support rod; 3. seat; 4. connecting plate; 5. support leg; 6. universal wheel; 7. sleeve; 8. connecting rod; 9. placement plate; 10. limiting ring; 11. worm gear; 12. swivel; 13. installation box; 14. adjustment plate; 15. connecting rod; 16. foot pedal; 17. rotating shaft; 18. torsion spring; 19. worm; 20. limit block; 21. slide groove; 22. pawl; 23. spring; 24. cam; 25. paddle; 26. ratchet. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The following is combined with Figure 1-7 The utility model is further described.

[0030] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: it includes a first support rod 1, a connecting plate 4 is fixedly connected to the bottom of the first support rod 1, the first support rod 1 is hollow, a second support rod 2 is slidably installed inside the first support rod 1, a thread is provided on the lower half surface of the second support rod 2, and the overall height of the seat is adjusted by controlling the depth of the second support rod 2 in the first support rod 1, and a seat 3 is fixedly connected to the top of the second support rod 2, and the seat 3 is used to support the interventional surgeon, reduce the surgeon's physical exertion, and alleviate the doctor's pain during the operation. A worm gear 11 is rotatably mounted on the limiting ring 10, and a swivel 12 is fixedly connected to the upper end face of the worm gear 11. The swivel 12 and the second supporting rod 2 are threadedly connected. A mounting box 13 is fixedly connected to the side of the limiting ring 10, and a worm 19 is rotatably mounted inside the mounting box 13. One side of the worm 19 is meshed with the worm gear 11, and a driving mechanism is provided on one side of the mounting box 13. The driving mechanism is used to drive the worm 19 to rotate to lift the seat 3.

[0031] The worm 19 is rotated by the driving mechanism, so that the worm 19 drives the worm wheel 11 to rotate, and the worm wheel 11 drives the swivel 12 to rotate. Due to the threaded connection between the swivel 12 and the second support rod 2 and the setting of the limit block 20, the swivel 12 drives the second support rod 2 to move up and down. The overall height of the seat is increased when the second support rod 2 moves upward, and the overall height of the seat is decreased when the second support rod 2 moves downward. It can be precisely adjusted according to the height of the operator and the needs of the operation to ensure that the operator can maintain a comfortable sitting posture. In addition, the operator can use the driving mechanism to adjust the seat height with his feet to avoid the operator directly touching the seat with his hands, which is convenient for maintaining hygiene during the operation.

[0032] It is further explained that the driving mechanism includes an adjusting disk 14 arranged on one side of the installation box 13, a ratchet 26 rotatably installed inside the adjusting disk 14, and a pawl 22 rotatably installed inside the adjusting disk 14, the end face of the ratchet 26 is fixedly connected with a rotating shaft 17, the rotating shaft 17 is coaxially fixedly connected with the worm 19, the outer sleeve of the rotating shaft 17 is provided with a torsion spring 18, the torsion spring 18 is arranged between the installation box 13 and the adjusting disk 14, the outer part of the adjusting disk 14 is fixedly connected with a connecting rod 15, and a foot pedal 16 is fixedly installed at one end of the connecting rod 15.

[0033] When the seat height needs to be adjusted, the interventionalist places his foot on the foot pedal 16 and steps on the foot pedal 16. The foot pedal 16 drives the connecting rod 15 and the adjusting plate 14 to rotate, and the adjusting plate 14 drives the ratchet 22 to rotate, the ratchet 22 drives the ratchet 26 to rotate, and the ratchet 26 drives the worm 19 to rotate, thereby driving the worm 19 to adjust the overall height of the seat. When the foot pedal 16 rotates downward, the torsion spring 18 is twisted. After the foot is lightly lifted, the torsion spring 18 returns to its initial state, so that the foot pedal 16 returns to its original position. The operator repeatedly steps on the foot pedal 16 to adjust the seat height. The interventionalist can adjust the seat height with his feet, which avoids the operator's hands from touching the seat, and at the same time facilitates the operator to adjust the seat height and maintain the most suitable sitting posture.

[0034] It is further explained that two groups of pawls 22 are provided, and a cam 24 is provided between the two groups of pawls 22. The cam 24 is rotatably installed inside the adjusting disk 14. A spring 23 is fixedly installed on one side of the two groups of pawls 22. The end of the spring 23 away from the pawl 22 is fixedly connected to the inner wall of the adjusting disk 14. A paddle 25 is rotatably installed on the outer surface of the adjusting disk 14. The paddle 25 is coaxially fixedly connected to the cam 24 through a rotating rod (not shown in the connecting rod drawing).

[0035] The two groups of ratchet 22 are arranged in cooperation with the spring 23 and the cam 24 to realize the control of the rising and falling of the seat through the foot pedal 16. When the ratchet 22 located at the bottom contacts the ratchet 26, the foot pedal 16 is pressed down. At this time, the ratchet 26 rotates clockwise, and the ratchet 26 drives the rotating shaft 17 to rotate clockwise, so that the worm 19 rotates forward through the worm wheel 11 and the swivel 12 to drive the second support rod 2 to rise, so that the seat is raised as a whole. The paddle 25 is turned, and the paddle 25 drives the cam 24 to rotate so that the cam 24 contacts the upper ratchet 22, and the foot pedal 16 is pressed down. At this time, the ratchet 26 rotates counterclockwise, and the ratchet 26 drives the rotating shaft 17 to rotate counterclockwise, so that the worm 19 reverses and drives the second support rod 2 to descend through the worm wheel 11 and the swivel 12, so that the seat is lowered as a whole. The operator can lightly turn the paddle 25 with his foot to adjust the overall height of the seat by stepping on the foot pedal 16. The setting of the spring 23 ensures that the ratchet 22 is always in contact with the ratchet 26, thereby improving the stability of the device.

[0036] It is further explained that a slide groove 21 is provided on the outer surface of the second support rod 2 , and a limit block 20 is slidably installed in the slide groove 21 . The limit block 20 is fixedly connected to the inner wall of the limit ring 10 .

[0037] The limiting block 20 cooperates with the slide groove 21 to guide and limit the second support rod 2, so that when the swivel 12 rotates, the second support rod 2 itself does not rotate but slides up and down in the first support rod 1, thereby adjusting the seat height.

[0038] It is further explained that a sleeve 7 is rotatably mounted on the outer portion of the upper end of the second support rod 2 , a connecting rod 8 is fixedly connected to the outer portion of the sleeve 7 , and a placement plate 9 is fixedly connected to the top end of the connecting rod 8 .

[0039] The placement tray 9 is used to place medical instruments, such as sterile cotton and surgical forceps, so that the surgeon can take them during the operation and feel more relaxed. At the same time, a layer of sterile pad needs to be laid on the placement tray 9 before use to ensure the sterile conditions required for the operation. The sleeve 7 adopts a damping sleeve so that there is a certain friction between the sleeve 7 and the outer surface of the second support rod 2. When there is no external force, the sleeve 7 will not rotate to maintain the stability of the placement tray 9. When the surgeon needs to adjust the position of the placement tray 9 for the convenience of the operation, the surgeon touches the placement tray 9 with his elbow to avoid directly touching the placement tray 9 with his hands. The placement tray 9 drives the connecting rod 8 and the sleeve 7 to rotate, so as to change the position of the placement tray 9.

[0040] It is further explained that a leg 5 is fixedly connected to the side of the connecting plate 4, and a universal wheel 6 is fixedly installed under the leg 5. The leg 5 is connected to the seat as a whole through the connecting plate 4. The leg 5 supports the seat as a whole to ensure the overall stability of the seat, which helps to ensure the accuracy and safety of the operation. The setting of the universal wheel 6 is convenient for the surgeon to adjust the position and observe and perform the operation from the best angle. The universal wheel 6 has a locking function. When locked, the seat can be fixed to prevent the seat from sliding during the surgeon's operation and affecting the surgeon's operation. When unlocked, the seat can move freely to facilitate the surgeon to adjust the position.

[0041] Specific reference is made to the following operations: when the seat height needs to be adjusted, the interventionist places his foot on the foot pedal 16 and steps on the foot pedal 16. The foot pedal 16 drives the connecting rod 15 and the adjusting disk 14 to rotate. The adjusting disk 14 drives the pawl 22 to rotate. The pawl 22 drives the ratchet 26 to rotate. The ratchet 26 drives the worm 19 to rotate. The worm 19 drives the worm wheel 11 to rotate. The worm wheel 11 drives the swivel 12 to rotate. Because of the threaded connection between the swivel 12 and the second support rod 2 and the setting of the limit block 20, the swivel 12 drives the second support rod 2 to move up and down. The second support rod 2 moves upward to increase the overall height of the seat. The second support rod 2 moves downward to decrease the overall height of the seat, thereby realizing the adjustment of the seat height.

[0042] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0043] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A practical chair for interventionalists, characterized in that: The invention comprises a first support rod (1), the bottom of which is fixedly connected to a connecting plate (4), the first support rod (1) is hollow, a second support rod (2) is slidably mounted inside the first support rod (1), a thread is provided on the lower surface of the second support rod (2), a seat (3) is fixedly connected to the top of the second support rod (2), a limiting ring (10) is fixedly connected to the top of the first support rod (1), a worm gear (11) is rotatably mounted on the limiting ring (10), The upper end surface of the worm wheel (11) is fixedly connected with a rotating ring (12), and the rotating ring (12) is threadedly connected to the second support rod (2). The side of the limiting ring (10) is fixedly connected with a mounting box (13), and a worm (19) is rotatably mounted inside the mounting box (13). One side of the worm (19) is meshed with the worm wheel (11). A driving mechanism is arranged on one side of the mounting box (13), and the driving mechanism is used to drive the worm (19) to rotate to lift the seat (3).

2. The practical chair for interventionalists according to claim 1, characterized in that: The driving mechanism comprises an adjusting disk (14) arranged at one side of the installation box (13), a ratchet (26) rotatably installed inside the adjusting disk (14), and a pawl (22) rotatably installed inside the adjusting disk (14); the end surface of the ratchet (26) is fixedly connected to a rotating shaft (17); the rotating shaft (17) is coaxially fixedly connected to a worm (19); a torsion spring (18) is sleeved on the outside of the rotating shaft (17); the torsion spring (18) is arranged between the installation box (13) and the adjusting disk (14); the outside of the adjusting disk (14) is fixedly connected to a connecting rod (15); one end of the connecting rod (15) is fixedly installed with a foot pedal (16).

3. The practical chair for interventionalists according to claim 2, characterized in that: The ratchet pawls (22) are provided in two groups, a cam (24) is provided between the two groups of the ratchet pawls (22), the cam (24) is rotatably mounted inside the adjusting disk (14), a spring (23) is fixedly mounted on one side of the two groups of the ratchet pawls (22), one end of the spring (23) away from the ratchet pawls (22) is fixedly connected to the inner wall of the adjusting disk (14), and a paddle (25) is rotatably mounted on the outer surface of the adjusting disk (14).

4. The practical chair for interventionalists according to claim 3, characterized in that: A sliding groove (21) is provided on the outer surface of the second support rod (2), a limit block (20) is slidably installed in the sliding groove (21), and the limit block (20) is fixedly connected to the inner wall of the limiting ring (10).

5. The practical chair for interventionalists according to claim 4, characterized in that: A sleeve (7) is rotatably mounted on the outer portion of the upper end of the second support rod (2); a connecting rod (8) is fixedly connected to the outer portion of the sleeve (7); and a placement plate (9) is fixedly connected to the top end of the connecting rod (8).

6. The practical chair for interventionalists according to claim 5, characterized in that: A support leg (5) is fixedly connected to the side of the connection plate (4), and a universal wheel (6) is fixedly installed under the support leg (5).

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