Trans-radial artery interventional puncture positioning device

Abstract

The invention relates to the technical field of medical equipment, and discloses a transradial artery interventional puncture positioning device which comprises a bottom plate, and a pair of mounting mechanisms are arranged on the bottom plate; the two ends of the arc-shaped frame are fixedly connected with first rotating shafts correspondingly, the first rotating shafts are rotationally connected with fixing plates, and the two fixing plates are fixedly connected to the pair of mounting mechanisms. The first limiting mechanism is arranged between any first rotating shaft and the fixing plate, and the arc-shaped frame can be fixed to different angle positions through the first limiting mechanism; the chain and chain wheel transmission mechanism is arranged on the arc-shaped frame and can drive the puncture sleeve to slide along the arc track of the arc-shaped frame; the second limiting mechanism is arranged between the chain and chain wheel transmission mechanism and the arc-shaped frame, the second limiting mechanism can fix the puncture sleeve to different point positions, the puncture needle can accurately and stably correspond to the puncture position, the stability of the puncture needle in the operation process is improved, and the operation safety, success rate and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a radial artery interventional puncture positioning device. BACKGROUND

[0002] Diagnosis and treatment (such as angiography, interventional embolization, stent implantation) of cerebrovascular diseases (such as aneurysm, arteriovenous malformation, vascular stenosis / occlusion) often require vascular puncture operation (such as femoral artery, radial artery puncture to establish access, or direct puncture of specific intracranial and extracranial vessels).

[0003] In the existing puncture operation, the doctor usually performs without image guidance, but the puncture method is still mainly completed by hand, and it is difficult to avoid the slight shaking of the hand-held puncture needle at the moment of puncture. When the needle tip enters the subcutaneous tissue, the puncture direction may be shifted due to resistance and force direction, and a millimeter-level deviation may lead to puncture failure, vascular wall injury (dissection, perforation), bleeding, thrombus formation or adjacent nerve injury and other serious complications. SUMMARY

[0004] The purpose of the present application is to provide a radial artery interventional puncture positioning device, which aims to solve or improve at least one of the above technical problems.

[0005] To achieve the above-mentioned purpose, the present application provides the following scheme: the present application provides a radial artery interventional puncture positioning device, comprising:

[0006] a bottom plate;

[0007] a pair of mounting mechanisms arranged on the bottom plate, the pair of mounting mechanisms being used for fixing and mounting on the arm of a patient;

[0008] an arc-shaped frame, two ends of the arc-shaped frame being respectively fixedly connected with first rotating shafts, the first rotating shafts being rotatably connected with fixed plates, and the two fixed plates being respectively fixedly connected with the pair of mounting mechanisms;

[0009] a first limiting mechanism arranged between any one of the first rotating shafts and the fixed plate, the first limiting mechanism being capable of fixing the arc-shaped frame at different angular positions;

[0010] a puncture sleeve, the puncture sleeve being slidably arranged on the arc-shaped frame;

[0011] a chain and sprocket transmission mechanism, the chain and sprocket transmission mechanism being arranged on the arc-shaped frame, and the chain and sprocket transmission mechanism being capable of driving the puncture sleeve to slide along the arc trajectory of the arc-shaped frame;

[0012] a second limiting mechanism arranged between the chain and sprocket transmission mechanism and the arc-shaped frame, the second limiting mechanism being capable of fixing the puncture sleeve at different point positions.

[0013] Optionally, the mounting mechanism comprises:

[0014] A clamping plate connected to the bottom plate and the fixed plate;

[0015] A threaded sleeve provided on the clamping plate, a threaded rod with a tap being threadedly fitted in the threaded sleeve, an end of the threaded rod being rotatably connected to a clamping plate, the clamping plate being used to abut against the arm of the patient.

[0016] Optionally, the first limiting mechanism comprises:

[0017] A first fixed clamping tooth ring fixedly connected to the fixed plate and coaxially provided with the first rotating shaft;

[0018] A first movable clamping tooth ring coaxially provided with the first fixed clamping tooth ring and capable of being engaged;

[0019] A first connecting sleeve connected to the first rotating shaft through a first elastic mechanism, the first connecting sleeve being fixedly connected to the first movable clamping tooth ring.

[0020] Optionally, the first elastic mechanism comprises:

[0021] A plurality of first connecting columns fixedly connected to the first connecting sleeve;

[0022] A plurality of first grooves provided on the first rotating shaft, the plurality of first connecting columns being slidably fitted with the plurality of first grooves and being connected through a first spring.

[0023] Optionally, the chain and sprocket transmission mechanism comprises:

[0024] An arc-shaped chain groove provided on the arc-shaped frame, a transmission chain being provided in the chain groove, a side wall of the transmission chain being fixedly connected to the puncture sleeve;

[0025] A rotating shaft groove provided on the arc-shaped frame, a transmission sprocket being rotatably connected to the transmission chain through a second rotating shaft in the rotating shaft groove, the transmission sprocket being engaged with the transmission chain.

[0026] Optionally, the second limiting mechanism comprises:

[0027] A connecting gear fixedly connected to the second rotating shaft;

[0028] A long gear rotatably connected to the arc-shaped frame through a third rotating shaft, the long gear being engaged with the connecting gear;

[0029] A second fixed clamping tooth ring fixedly connected to the arc-shaped frame and coaxially provided with the third rotating shaft;

[0030] A second movable toothed ring coaxially arranged with the second fixed toothed ring and capable of being engaged with the second fixed toothed ring;

[0031] A second connecting sleeve connected with the third rotating shaft through a second elastic mechanism, the second connecting sleeve is fixedly connected with the second movable toothed ring, and an operating rod is fixedly connected on the second connecting sleeve.

[0032] Optionally, the second elastic mechanism comprises:

[0033] A plurality of second connecting columns fixedly connected on the second connecting sleeve;

[0034] A plurality of second grooves formed on the third rotating shaft, and the plurality of second connecting columns and the plurality of second grooves are slidingly matched and connected through a second spring.

[0035] Optionally, the operating rod is in a Z-shaped structure, any parallel segment of the operating rod is fixedly connected with the second connecting sleeve, and another parallel segment of the operating rod is rotatably connected with a rotating sleeve.

[0036] Optionally, a T-shaped sliding groove adapted to the chain groove structure is formed on the arc-shaped frame, a T-shaped sliding strip is slidingly connected in the T-shaped sliding groove, and the T-shaped sliding strip is fixedly connected with the transmission chain.

[0037] Optionally, an arc-shaped communication sliding groove is communicated with one side of the T-shaped sliding strip away from the chain groove, a third connecting column is slidingly matched in the communication sliding groove, and the third connecting column is fixedly connected with the T-shaped sliding strip and the puncture sleeve.

[0038] The present application discloses the following technical effects: the installation mechanism is fixedly installed on the arm of a patient, so that the overall device position is stable, the puncture sleeve is driven by the arc-shaped frame and the chain sprocket transmission mechanism to slide along the arc trajectory of the arc-shaped frame, the position of the puncture sleeve can be freely adjusted, the angle position of the arc-shaped frame is locked by the first limiting mechanism, the point position of the puncture sleeve on the arc-shaped frame is locked by the second limiting mechanism, so that the puncture needle can accurately and stably correspond to the puncture position, the stability of the puncture needle during the operation process is improved, and the operation safety, success rate and efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] The drawings constituting a part of the present application are used to provide a further understanding of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0040] Figure 1 It is a front view of the present application;

[0041] Figure 2 It is Figure 1A close-up view of the middle A;

[0042] Figure 3 A view of the invention;

[0043] Figure 4 A view of the invention; Figure 3 A close-up view of the middle B;

[0044] Figure 5 A view of the first elastic mechanism of the invention;

[0045] Figure 6 A view of the second elastic mechanism of the invention;

[0046] Figure 7 A view of the arc-shaped frame of the invention.

[0047] In the figure: 1, arc-shaped frame; 2, first rotating shaft; 3, fixed plate; 4, puncture sleeve; 5, clamping plate; 6, threaded sleeve; 7, screw rod; 8, clamping plate; 9, first fixed clamping tooth ring; 10, first movable clamping tooth ring; 11, first connecting sleeve; 12, first connecting column; 13, first groove; 14, first spring; 15, chain groove; 16, transmission chain; 17, rotating shaft groove; 18, second rotating shaft; 19, transmission sprocket; 20, connecting gear; 21, long gear; 22, third rotating shaft; 23, second fixed clamping tooth ring; 24, second movable clamping tooth ring; 25, second connecting sleeve; 26, operating rod; 27, second connecting column; 28, second groove; 29, second spring; 30, rotating sleeve; 31, T-shaped sliding groove; 32, T-shaped sliding bar; 33, communication sliding groove; 34, third connecting column; 35, flexible pad. DETAILED DESCRIPTION

[0048] The existing Chinese patent discloses a radial artery intervention puncture positioning device CN113288366A. The fixed base plate is fixed on the hospital bed through the second fixed bolt, the patient's head is located on the inner side of the arc-shaped slide rail, then the screw rod is screwed in the fixed plate by twisting the screw rod, the other end of the screw rod is rotatably connected with the clamping block through the first bearing, so that the screw rod pushes the clamping block to approach the two sides of the patient's head, the clamping pads are arranged on the inner side of the clamping block, and the clamping pads are pushed to slide on the inner side of the clamping block under the pressure when the clamping pads are synchronously clamped with the patient, so that the sliding plate presses the first spring in the clamping block to buffer, which can prevent excessive force from being applied to the patient's head, thereby facilitating use.

[0049] Existing Chinese patent CN217310511U discloses a radial artery interventional puncture positioning device. A clamping block is inserted into both sides of an operating table. The user fixes the clamping block by rotating a fixing bolt, causing its top to abut against the operating table. The user then adjusts the height of the sliding platform between the two sliding rods. After adjustment, the user fixes the height of the sliding platform by rotating a fourth adjusting bolt, causing one end to abut against a sliding rod. A fixing plate is slidably mounted on the sliding platform. The user then opens the clamping plate, inserts the puncture needle, closes it, and fixes it with a third adjusting bolt. Since the sliding platform is mounted between telescopic rods via rotating heads, the user can make final angle adjustments by rotating the sliding platform. After adjustment, the user moves the base on the fixing plate, allowing the puncture needle to pierce the patient's brain, thus completing the puncture. Rotating the second adjusting bolt fixes the position of the moving plate, thereby fixing the position of the puncture needle and improving puncture stability.

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] Reference Figures 1 to 7 The present invention provides a transradial artery interventional puncture positioning device, comprising:

[0053] Base plate;

[0054] A pair of mounting mechanisms are set on the base plate; the pair of mounting mechanisms are used to secure the device to the patient's arm.

[0055] An arc-shaped frame 1 has a first rotating shaft 2 fixedly connected to each end. The first rotating shaft 2 is rotatably connected to a fixed plate 3. The two fixed plates 3 are fixedly connected to a pair of mounting mechanisms.

[0056] The first limiting mechanism is set between any first rotating shaft 2 and fixed plate 3, and the first limiting mechanism can fix the arc frame 1 at different angle positions;

[0057] The puncture sleeve 4 is slidably mounted on the arc-shaped frame 1;

[0058] The chain sprocket transmission mechanism is arranged on the arc-shaped frame 1, and the chain sprocket transmission mechanism can drive the puncture sleeve 4 to slide along the arc track of the arc-shaped frame 1.

[0059] The second limiting mechanism is arranged between the chain sprocket transmission mechanism and the arc-shaped frame 1, and the second limiting mechanism can fix the puncture sleeve 4 at different point positions.

[0060] By fixing the installation mechanism on the patient's arm, the overall device position is stable, the puncture sleeve 4 is driven to slide along the arc track of the arc-shaped frame 1 by the arc-shaped frame 1 and the chain sprocket transmission mechanism, the position of the puncture sleeve 4 can be freely adjusted, the angle position of the arc-shaped frame 1 is locked by the first limiting mechanism, and the point position of the puncture sleeve 4 on the arc-shaped frame 1 is locked by the second limiting mechanism, so that the puncture needle can accurately and stably correspond to the puncture position, the stability of the puncture needle during the operation process is improved, and the operation safety, success rate and efficiency are improved.

[0061] Further, the puncture sleeve 4 is provided with a clamping piece for clamping the puncture needle, and the clamping piece can be a plurality of positioning screws.

[0062] Further, the height position of the puncture sleeve 4 can be adjusted by a lifting device, and the lifting device can be a cylinder or a slide rail, which is a prior art and will not be described here.

[0063] In an embodiment of the present application, the installation mechanism comprises:

[0064] The clamping plate 5 is connected with the bottom plate and the fixed plate 3.

[0065] The threaded sleeve 6 is arranged on the clamping plate 5, the threaded sleeve 6 is threadedly matched with the screw rod 7 provided with a head, the end of the screw rod 7 is rotationally connected with the clamping plate 8, and the clamping plate 8 is used for abutting against the patient's arm.

[0066] The patient's arm is placed between the pair of clamping plates 8, the screw rod 7 is rotated, the screw rod 7 is threadedly matched with the threaded sleeve 6, the screw rod 7 drives the clamping plate 8 to move towards the patient's arm, so that the clamping space between the pair of clamping plates 8 is reduced until the pair of clamping plates 8 abut against the patient's arm, and the patient's arm is quickly fixed.

[0067] Further, the surface of the clamping plate 8 is provided with a flexible pad 35, and the comfort is improved.

[0068] Further, the clamping plate 8 is in an arc-shaped structure, and is more fitted to the curvature of the patient's arm.

[0069] In an embodiment of the present application, the first limiting mechanism comprises:

[0070] The first fixed clamping tooth ring 9 is fixedly connected to the fixed plate 3 and coaxially arranged with the first rotating shaft 2.

[0071] The first movable clashing ring 10 is coaxially arranged with the first fixed clashing ring 9 and can be engaged with the first fixed clashing ring 9;

[0072] The first connecting sleeve 11 is connected with the first rotating shaft 2 through the first elastic mechanism, and the first connecting sleeve 11 is fixedly connected with the first movable clashing ring 10.

[0073] In an embodiment of the present application, the first elastic mechanism comprises:

[0074] A plurality of first connecting columns 12 are fixedly connected on the first connecting sleeve 11.

[0075] A plurality of first grooves 13 are arranged on the first rotating shaft 2, the plurality of first connecting columns 12 are slidingly matched with the plurality of first grooves 13 and are connected through the first spring 14.

[0076] By pulling the first connecting sleeve 11, the first connecting column 12 slides along the first groove 13, the first spring 14 is stretched, thereby driving the first movable clashing ring 10 to separate from the first fixed clashing ring 9, so that the first rotating shaft 2 remains in a rotatable state, thereby the angle position of the arc-shaped frame 1 can be adjusted. After the adjustment is completed, the first connecting sleeve 11 is released, and the first movable clashing ring 10 is re-engaged with the first fixed clashing ring 9 through the pulling of the first spring 14, thereby the position of the first connecting sleeve 11 is limited, and the plurality of first connecting columns 12 are arranged between the first connecting sleeve 11 and the first rotating shaft 2, thereby the position of the first rotating shaft 2 is limited, and the position of the arc-shaped frame 1 is limited.

[0077] In an embodiment of the present application, the chain and sprocket transmission mechanism comprises:

[0078] The arc-shaped chain groove 15 is arranged on the arc-shaped frame 1, and the transmission chain 16 is arranged in the chain groove 15, and the side wall of the transmission chain 16 is fixedly connected with the puncture sleeve 4.

[0079] The rotating shaft groove 17 is arranged on the arc-shaped frame 1, and the transmission sprocket 19 is rotatably connected in the rotating shaft groove 17 through the second rotating shaft 18, and the transmission sprocket 19 is engaged with the transmission chain 16.

[0080] The movement track of the transmission chain 16 is limited by the chain groove 15, the transmission sprocket 19 is driven to rotate by rotating the second rotating shaft 18, thereby the transmission sprocket 19 drives the transmission chain 16 to rotate, and the puncture sleeve 4 is synchronously moved through the transmission chain 16.

[0081] In an embodiment of the present application, the second limiting mechanism comprises:

[0082] The connecting gear 20 is fixedly connected with the second rotating shaft 18.

[0083] A long gear 21 is rotatably connected to the arc-shaped frame 1 through a third rotating shaft 22, and the long gear 21 is engaged with the connecting gear 20.

[0084] A second fixed clamping tooth ring 23 is fixedly connected to the arc-shaped frame 1 and coaxially arranged with the third rotating shaft 22.

[0085] A second movable clamping tooth ring 24 is coaxially arranged with the second fixed clamping tooth ring 23 and can be engaged.

[0086] A second connecting sleeve 25 is connected with the third rotating shaft 22 through a second elastic mechanism, the second connecting sleeve 25 is fixedly connected with the second movable clamping tooth ring 24, and the second connecting sleeve 25 is fixedly connected with an operating rod 26.

[0087] In an embodiment of the present application, the second elastic mechanism comprises:

[0088] A plurality of second connecting columns 27 are fixedly connected to the second connecting sleeve 25.

[0089] A plurality of second grooves 28 are arranged on the third rotating shaft 22, the plurality of second connecting columns 27 are slidingly matched with the plurality of second grooves 28 and connected through a second spring 29.

[0090] By pulling the second connecting sleeve 25, the second connecting column 27 slides along the second groove 28, the second spring 29 is stretched, thereby driving the second movable clamping tooth ring 24 to separate from the second fixed clamping tooth ring 23, so that the third rotating shaft 22 remains rotatable, and then the second connecting sleeve 25 is rotated through the operating rod 26, the connecting gear 20 is driven to rotate by the long gear 21 on the second connecting sleeve 25, thereby driving the second rotating shaft 18 to rotate, realizing the rotation of the transmission sprocket 19, adjusting the position of the puncture sleeve 4, and then loosening the second connecting sleeve 25, the second movable clamping tooth ring 24 is re-engaged with the second fixed clamping tooth ring 23 through the pulling of the second spring 29, thereby limiting the position of the second connecting sleeve 25, and the second connecting sleeve 25 limits the positions of the second rotating shaft 18 and the transmission sprocket 19 through the engagement state of the long gear 21 and the connecting gear 20, and limits the position of the puncture sleeve 4 through the engagement state of the transmission sprocket 19 and the transmission chain 16.

[0091] In an embodiment of the present application, the operating rod 26 is in a Z-shaped structure, either parallel section of the operating rod 26 is fixedly connected with the second connecting sleeve 25, and the other parallel section of the operating rod 26 is rotatably connected with a rotating sleeve 30.

[0092] By setting the Z-shaped operating rod 26 and the rotatable rotating sleeve 30, the second connecting sleeve 25 is facilitated to rotate.

[0093] In one embodiment of the present application, the arc-shaped frame 1 is provided with a T-shaped sliding groove 31 matched with the structure of the chain groove 15, and the T-shaped sliding groove 31 is slidably connected with a T-shaped sliding strip 32, and the T-shaped sliding strip 32 is fixedly connected with the transmission chain 16.

[0094] Through the cooperation of the T-shaped sliding strip 32 and the T-shaped sliding groove 31, the transmission chain 16 can be stably and rotationally matched with the arc-shaped frame 1, and the T-shaped sliding strip 32 is a flexible structure.

[0095] In one embodiment of the present application, the side of the T-shaped sliding strip 32 away from the chain groove 15 is communicated with an arc-shaped communication sliding groove 33, the communication sliding groove 33 is slidably matched with a third connecting column 34, and the third connecting column 34 is fixedly connected with the T-shaped sliding strip 32 and the puncture sleeve 4.

[0096] Through the fixed connection of the third connecting column 34 with the T-shaped sliding strip 32 and the puncture sleeve 4, when the T-shaped sliding strip 32 slides, the third connecting column 34 is driven to slide along the communication sliding groove 33, so as to drive the puncture sleeve 4 to move synchronously.

[0097] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0098] The above-described embodiments are only used to describe the preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A transradial artery interventional puncture positioning device, characterized in that, include: Base plate; A pair of mounting mechanisms are disposed on the base plate, and the pair of mounting mechanisms are used for secure mounting on the patient's arm; An arc-shaped frame (1) has a first rotating shaft (2) fixedly connected to each end. The first rotating shaft (2) is rotatably connected to a fixing plate (3). The two fixing plates (3) are fixedly connected to a pair of mounting mechanisms. A first limiting mechanism is provided between any of the first rotating shafts (2) and the fixed plate (3), and the first limiting mechanism enables the arc frame (1) to be fixed at different angular positions; The piercing sleeve (4) is slidably mounted on the arc-shaped frame (1); A chain and sprocket drive mechanism is provided on the arc frame (1). The chain and sprocket drive mechanism can drive the piercing sleeve (4) to slide along the arc trajectory of the arc frame (1). The second limiting mechanism is disposed between the chain sprocket transmission mechanism and the arc frame (1). The second limiting mechanism enables the piercing sleeve (4) to be fixed at different points.

2. The transradial artery interventional puncture positioning device according to claim 1, characterized in that, The installation mechanism includes: The card plate (5) is connected to the base plate and the fixing plate (3); A threaded sleeve (6) is provided on the clamping plate (5). The threaded sleeve (6) is internally threaded with a screw (7) with a flower head. The end of the screw (7) is rotatably connected to a clamping plate (8), which is used to abut against the patient's arm.

3. The transradial artery interventional puncture positioning device according to claim 1, characterized in that, The first limiting mechanism includes: The first fixed toothed ring (9) is fixedly connected to the fixed plate (3) and is coaxially arranged with the first rotating shaft (2); The first movable toothed ring (10) is coaxially arranged with the first fixed toothed ring (9) and can mesh with it; The first connecting sleeve (11) is connected to the first rotating shaft (2) through the first elastic mechanism, and the first connecting sleeve (11) is fixedly connected to the first movable retaining ring (10).

4. The transradial artery interventional puncture positioning device according to claim 3, characterized in that, The first elastic mechanism includes: Multiple first connecting posts (12) are fixedly connected to the first connecting sleeve (11); Multiple first grooves (13) are formed on the first rotating shaft (2), and multiple first connecting posts (12) slide in cooperation with the multiple first grooves (13) and are connected by a first spring (14).

5. The transradial artery interventional puncture positioning device according to claim 1, characterized in that, The chain and sprocket transmission mechanism includes: An arc-shaped chain groove (15) is provided on the arc-shaped frame (1), and a transmission chain (16) is provided in the chain groove (15). The side wall of the transmission chain (16) is fixedly connected to the piercing sleeve (4). A rotating shaft groove (17) is formed on the arc-shaped frame (1). A transmission sprocket (19) is rotatably connected in the rotating shaft groove (17) via a second rotating shaft (18). The transmission sprocket (19) meshes with the transmission chain (16).

6. The transradial artery interventional puncture positioning device according to claim 5, characterized in that, The second limiting mechanism includes: The connecting gear (20) is fixedly connected to the second rotating shaft (18); A long gear (21) is rotatably connected to the arc frame (1) via a third rotating shaft (22), and the long gear (21) meshes with the connecting gear (20); The second fixed toothed ring (23) is fixedly connected to the arc frame (1) and coaxially arranged with the third rotating shaft (22); The second movable toothed ring (24) is coaxially arranged with the second fixed toothed ring (23) and can mesh with it; The second connecting sleeve (25) is connected to the third rotating shaft (22) through the second elastic mechanism. The second connecting sleeve (25) is fixedly connected to the second movable retaining ring (24). An operating rod (26) is fixedly connected to the second connecting sleeve (25).

7. The transradial artery interventional puncture positioning device according to claim 6, characterized in that, The second flexible mechanism includes: Multiple second connecting posts (27) are fixedly connected to the second connecting sleeve (25); Multiple second grooves (28) are formed on the third rotating shaft (22), and multiple second connecting posts (27) slide in engagement with multiple second grooves (28) and are connected by a second spring (29).

8. The transradial artery interventional puncture positioning device according to claim 6, characterized in that, The operating lever (26) has a Z-shaped structure. Any parallel segment of the operating lever (26) is fixedly connected to the second connecting sleeve (25), and a rotating sleeve (30) is rotatably connected to the other parallel segment of the operating lever (26).

9. A transradial artery interventional puncture positioning device according to claim 5, characterized in that, The arc frame (1) is provided with a T-shaped slide groove (31) that is adapted to the structure of the chain groove (15). A T-shaped slide bar (32) is slidably connected in the T-shaped slide groove (31), and the T-shaped slide bar (32) is fixedly connected to the transmission chain (16).

10. A transradial artery interventional puncture positioning device according to claim 9, characterized in that, The T-shaped slide bar (32) has an arc-shaped connecting groove (33) on the side away from the chain groove (15). A third connecting post (34) is slidably fitted in the connecting groove (33). The third connecting post (34) is fixedly connected to the T-shaped slide bar (32) and the piercing sleeve (4).

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