Hand supporting plate for radial artery puncture

Abstract

The invention belongs to the technical field of medical puncture, and discloses a radial artery puncture hand supporting plate which comprises a base, a universal groove is formed in the base, a universal adjusting assembly is movably arranged in the universal groove, mounting grooves are symmetrically formed in the side wall of the universal groove, a mounting hole is formed in the base in a penetrating mode, and the universal adjusting assembly is movably arranged in the mounting hole. The mounting hole is connected with the universal groove in a penetrating mode, a wire groove is formed between the mounting hole and the mounting groove in a penetrating mode, and through multi-degree-of-freedom and hydraulic precise control of the universal ball head, three-dimensional independent adjustment of the wrist support is achieved, and clinical requirements are met; the piston rod is driven by the gravity of the arm of a patient to compress liquid in the liquid storage barrel, the hydraulic telescopic rod pushes the rubber brake pad to lock the universal ball head, closed-loop control from gravity triggering to hydraulic locking is formed, automatic locking can be achieved without manual operation, and the operation time is greatly shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of medical puncture, and in particular relates to a radial artery puncture hand support plate. Background Art

[0002] During radial artery puncture, the patient's wrist needs to be elevated to keep the wrist joint in a hyperextension state, which is conducive to improving the success rate of radial artery puncture; Publication No. CN209074924U discloses a radial artery puncture position fixation device that uses a mechanical structure of positioning balls and grooves to achieve angle adjustment. However, the spring-supported positioning balls lose their elasticity after long-term use. Even slight movement of the patient can cause the angle between the arm rest and the hand fixation plate to change, affecting the stability of the puncture position. Publication No. CN218589136U discloses a radial artery puncture support pad that directly uses a saline bottle at a fixed height as support. The fixed angle makes it difficult to align the radial artery, leading to needle deviation or repeated punctures, increasing the risk of vascular damage and hematoma. Therefore, a radial artery puncture hand support plate that can universally adjust the angle and automatically brake and lock is needed to solve the above problems. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a radial artery puncture hand support plate, which realizes three-dimensional independent adjustment of the wrist support through the multi-degree-of-freedom and hydraulic precision control of the universal ball head to cover clinical needs; the gravity of the patient's arm drives the piston rod to compress the liquid in the liquid storage barrel, and the hydraulic telescopic rod pushes the rubber brake pad to lock the universal ball head, forming a closed-loop control from gravity triggering to hydraulic locking, which can be automatically locked without manual operation, greatly shortening the operation time.

[0004] The technical solution adopted by the present invention is as follows: a radial artery puncture hand support plate, including a base, a universal groove is provided in the base, a universal adjustment component is movably provided in the universal groove, the side walls of the universal groove are symmetrically provided with mounting grooves, a mounting hole is provided through the base, the mounting hole is through-connected with the universal groove, a wire groove is provided through the mounting hole and the mounting groove, a hydraulic telescopic rod is fixedly provided in the mounting groove in opposite horizontal directions, the universal adjustment component includes a universal ball head movably provided in the universal groove and a liquid storage barrel fixedly provided on the outer wall of the universal ball head, and the liquid storage barrel is connected to the base end pipe of the hydraulic telescopic rod.

[0005] As a preferred technical solution of this scheme, the universal adjustment assembly also includes a piston rod that is slidably arranged on the top wall of the liquid storage barrel, a spring is connected between the piston rod and the inner wall of the bottom of the liquid storage barrel, and a wrist rest is fixed to the upper end of the piston rod.

[0006] As a preferred technical solution of this scheme, a steel wire rope is fixed to the output end of the hydraulic telescopic rod, the free end of the steel wire rope passes through the wire groove and is overlapped on the guide wheel, and the free end of the steel wire rope is fixedly connected to the outer wall of the universal ball head.

[0007] As a preferred technical solution of this scheme, a fixing frame is fixedly provided in the mounting hole, and a guide wheel is rotatably provided on the fixing frame.

[0008] As a preferred technical solution of this scheme, the axis of the piston rod itself, the axis of the liquid storage barrel itself, the center of the universal ball head and the connection point between the wire rope and the universal ball head are arranged on the same line.

[0009] After adopting the above structure, the beneficial effects of the present invention are as follows: (1) Utilizing the multi-degree-of-freedom motion characteristics of the universal ball head and combining it with the precise control of the hydraulic telescopic rod, the wrist support can be independently adjusted in three dimensions: horizontal rotation, vertical tilt, and lateral deflection, covering all clinical needs of radial artery puncture; (2) The patient's arm gravity compresses the liquid in the liquid storage barrel through the piston rod, and the hydraulic telescopic rod extends and pushes the rubber brake pad to lock the universal ball head, forming a closed-loop control from "gravity triggering" to "hydraulic locking", ensuring the locking of the support plate during the puncture process; (3) The patient only needs to place his arm on the wrist rest to automatically lock the wrist, without the need for medical staff to manually adjust the knob or buckle, thus shortening the operation time. This feature is particularly suitable for emergency puncture scenarios and can significantly reduce the risk of complications caused by delayed position adjustment; (4) The rubber brake pad driven by the electric push rod is combined with the universal ball head to achieve reliable braking. The support plate and the elastic strap form a rigid and flexible fixed structure, which can adapt to the fracture patient's fracture limb angle fixation needs, improve the patient's comfort, and has good applicability, which is conducive to the recovery of the patient's fractured arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention.

[0011] Figure 1 This is a three-dimensional diagram of the overall structure of a radial artery puncture hand support plate proposed by the present invention; Figure 2 This is a cross-sectional view of the internal structure of a radial artery puncture hand support plate proposed by the present invention; Figure 3 This is a schematic diagram of the overall structure of the universal adjustment assembly proposed in the present invention; Figure 4 This is a schematic diagram of the internal structure of the base proposed by the present invention; Figure 5 This is a cross-sectional view of the overall structure of Example 2 proposed by the present invention.

[0012] In the attached figure: 1. Base, 2. Wrist rest, 3. Piston rod, 4. Liquid storage barrel, 5. Spring, 6. Universal slot, 7. Mounting slot, 8. Hydraulic telescopic rod, 9. Wire slot, 10. Fixed bracket, 11. Guide wheel, 12. Wire rope, 13. Hose, 14. Universal adjustment assembly, 15. Mounting hole, 16. Universal ball head, 17. Electric push rod, 18. Support plate, 19. Elastic strap. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0014] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0015] Example 1: Figure 1-Figure 4As shown, a radial artery puncture hand support plate includes a base 1, a universal groove 6 is provided in the base 1, a universal adjustment component 14 is movably provided in the universal groove 6, a mounting groove 7 is symmetrically provided on the side wall of the universal groove 6, a mounting hole 15 is provided through the base 1, the mounting hole 15 is connected to the universal groove 6, a wire groove 9 is provided between the mounting hole 15 and the mounting groove 7, a hydraulic telescopic rod 8 is fixedly provided in the mounting groove 7 in opposite horizontal directions, a rubber brake pad is fixed at the output end of the hydraulic telescopic rod 8, and the universal adjustment component 14 includes a universal ball head 16 movably provided in the universal groove 6 and a universal ball head 16 fixedly provided on the universal ball head 1 6 outer wall of the liquid storage barrel 4, a hose 13 is connected between the liquid storage barrel 4 and the base end of the hydraulic telescopic rod 8, a fixing frame 10 is fixed in the mounting hole 15, and a guide wheel 11 is rotatably provided on the fixing frame 10, and a steel wire rope 12 is fixed to the output end of the hydraulic telescopic rod 8, the free end of the steel wire rope 12 passes through the wire groove 9 and overlaps the guide wheel 11, and the free end of the steel wire rope 12 is fixedly connected to the outer wall of the universal ball head 16, the universal adjustment assembly 14 also includes a piston rod 3 that is slidably arranged on the top wall of the liquid storage barrel 4, a spring 5 is connected between the piston rod 3 and the inner wall of the bottom of the liquid storage barrel 4, and a wrist rest 2 is fixed to the upper end of the piston rod 3.

[0016] The axis of the piston rod 3 , the axis of the liquid storage barrel 4 , the center of the universal ball joint 16 , and the connection point between the wire rope 12 and the universal ball joint 16 are arranged on the same line.

[0017] During specific use, in the initial state, the piston rod 3 is in an elevated state under the elastic force of the spring 5, and the liquid storage barrel 4 is filled with liquid. At this time, the hydraulic telescopic rod 8 is in a retracted state, so the hydraulic telescopic rod 8 pulls the wire rope 12 and the universal ball head 16, thereby making the wrist rest 2 in a horizontal state; When performing a puncture operation, the medical staff first adjusts the wrist support 2 to a suitable angle and places the patient's wrist on the wrist support 2. Then, the wrist support 2 and the piston rod 3 move downward due to the gravity of the patient's arm. The piston rod 3 presses the liquid in the liquid storage barrel 4 into the hydraulic telescopic rod 8 through the hose 13. The output end of the hydraulic telescopic rod 8 is then extended. When the rubber brake pad contacts the universal ball head 16, the universal ball head 16 is effectively braked, so that the wrist support 2 is stabilized at a preset angle, thereby providing convenience for the puncture operation of the medical staff.

[0018] Example 2, as Figure 5 As shown, the difference between this embodiment and the aforementioned embodiment 1 is that a support plate 18 is fixedly provided on the outer wall of the universal ball head 16, an elastic band 19 is provided on the support plate 18, an electric push rod 17 is fixedly provided in the mounting groove 7, a steel wire rope 12 is fixedly provided at the output end of the electric push rod 17, and a rubber brake pad is fixedly provided at the output end of the electric push rod 17.

[0019] During specific use, the medical staff first places the fractured patient's arm on the support plate 18, and then uses the elastic strap 19 to fix the patient's arm. At this time, the medical staff adjusts the angle of the support plate 18 and starts the electric push rod 17. The electric push rod 17 drives the rubber brake pad to extend. When the rubber brake pad contacts the universal ball head 16, the universal ball head 16 is effectively braked, so that the support plate 18 is stabilized at a preset angle, thereby providing fixed support for the recovery of the patient's fractured arm.

[0020] In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to this technical solution without creatively designing them without departing from the purpose of the invention, they should all fall within the scope of protection of the invention.

Claims

1. A radial artery puncture hand support plate, comprising a base (1), characterized in that: A universal groove (6) is provided in the base (1), a universal adjustment assembly (14) is movably provided in the universal groove (6), a mounting groove (7) is symmetrically provided on the side wall of the universal groove (6), a mounting hole (15) is provided through the base (1), the mounting hole (15) is connected to the universal groove (6), a wire groove (9) is provided through the mounting hole (15) and the mounting groove (7), a hydraulic telescopic rod (8) is fixedly provided in the mounting groove (7) in opposite horizontal directions, the universal adjustment assembly (14) comprises a universal ball head (16) movably provided in the universal groove (6) and a liquid storage barrel (4) fixedly provided on the outer wall of the universal ball head (16), and the liquid storage barrel (4) is connected to the base end pipeline of the hydraulic telescopic rod (8).

2. A radial artery puncture hand support according to claim 1, characterized in that: The universal adjustment assembly (14) further comprises a piston rod (3) slidably disposed on the top wall of the liquid storage barrel (4) and a wrist support (2) fixedly disposed on the upper end of the piston rod (3).

3. A radial artery puncture hand support according to claim 2, characterized in that: A steel wire rope (12) is fixedly provided at the output end of the hydraulic telescopic rod (8), the steel wire rope (12) passes through the wire groove (9), and the free end of the steel wire rope (12) is fixedly connected to the outer wall of the universal ball head (16).

4. A radial artery puncture hand support according to claim 3, characterized in that: The axis of the piston rod (3), the axis of the liquid storage barrel (4), the center of the universal ball joint (16), and the connection point between the wire rope (12) and the universal ball joint (16) are arranged on a collinear line.

5. The radial artery puncture hand support according to claim 4, characterized in that: A spring (5) is connected between the piston rod (3) and the inner wall of the bottom of the liquid storage barrel (4).

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