Femoral artery compression tourniquet assembly

Abstract

The present application relates to a kind of femoral artery compression hemostatic bandage assemblies, including compression knob, the bottom end of compression knob is fixedly connected with central spiral compression rod, the bottom end of central spiral compression rod is fixedly connected with connecting ring outside, the bottom end of connecting ring is fixedly connected with compression pad, the outside of central spiral compression rod is threadedly connected with mechanical support structure, the bottom end of mechanical support structure is fixedly connected with cup-shaped stable base, the outside of cup-shaped stable base is fixedly connected with multiple connecting blocks.The present application, by compression knob drive central spiral compression rod moves along axial direction, realizes the beneficial effect that compression pad is continuously accurately adjusted to femoral artery compression force;By locking ring locking the axial position of central spiral compression rod, it realizes the beneficial effect that compression force is stably maintained, prevents from turning loose;By screw rod drive rotating round block and through rotating long connecting plate, connecting short plate and U-shaped connecting block drive connecting buckle, it realizes the beneficial effect that the length of waist fixing belt is conveniently fine-tuned.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a femoral artery compression tourniquet assembly. Background Technology

[0002] Femoral artery puncture is a commonly used vascular access method in interventional diagnosis and treatment, extracorporeal membrane oxygenation (ECMO) support, and other clinical procedures. After the puncture, continuous and effective pressure must be applied to the femoral artery puncture site to prevent complications such as bleeding, subcutaneous hematoma, and pseudoaneurysm, and to promote healing and shorten the patient's bed rest and hospital stay. Therefore, hemostatic devices that can provide stable and reliable pressure to the femoral artery puncture site are of significant clinical application demand.

[0003] Existing femoral artery compression hemostasis devices typically consist of a fixation strap and a compression component. In use, the fixation strap is first wrapped around and secured to the patient's waist or thigh, and then the compression component is aligned with the femoral artery puncture site. Pressure is applied to the puncture site by rotating a knob or manually pressing to achieve hemostasis. However, existing devices have the following shortcomings in practical use: the pressure application relies heavily on the operator's experience, making continuous and precise adjustment difficult; the pressure is also prone to loosening during prolonged compression, leading to instability; and the device relies solely on a single fixation strap, resulting in insufficient stability and easy displacement during compression, making it difficult to maintain a consistently accurate compression position. Summary of the Invention

[0004] The purpose of this invention is to provide a femoral artery compression tourniquet assembly.

[0005] The objective of this invention is achieved through the following technical solution: a femoral artery compression tourniquet assembly, comprising a compression knob, a central spiral compression rod fixedly connected to the bottom end of the compression knob, a connecting ring fixedly connected to the outer side of the bottom end of the central spiral compression rod, a compression pad fixedly connected to the bottom end of the connecting ring, a mechanical support structure threadedly connected to the outer side of the central spiral compression rod, a cup-shaped stabilizing base fixedly connected to the bottom end of the mechanical support structure, two connecting blocks fixedly connected to the outer side of the cup-shaped stabilizing base, a connecting mechanism provided on the connecting blocks, leg fixing straps provided on the two connecting mechanisms, a connecting rotating block fixedly connected to the outer side of the cup-shaped stabilizing base, an adjusting component rotatably connected to the connecting rotating block, and a waist fixing strap externally connected to the adjusting component.

[0006] As a further description of the above technical solution:

[0007] The central spiral compression rod has a locking ring connected to its external thread.

[0008] As a further description of the above technical solution:

[0009] The bottom end of the cup-shaped stabilizing base is fixedly connected to a bearing base, and the bearing base is provided with a circular spring piece on its outside.

[0010] As a further description of the above technical solution:

[0011] The adjustment assembly includes a rotating long connecting plate, a threaded rod rotatably connected to the rotating long connecting plate, a rotating circular block fixedly connected to the outside of the threaded rod, a connecting short plate rotatably connected to the outside of the rotating circular block, a U-shaped connecting block rotatably connected to the outside of the connecting short plate, and a waist fixing belt fixedly connected to the outside of the U-shaped connecting block.

[0012] As a further description of the above technical solution:

[0013] The waist strap is provided with a connecting buckle on the outside, and the connecting buckle includes a limiting sleeve and an elastic buckle.

[0014] As a further description of the above technical solution:

[0015] The compression pad is a disc-shaped pad, and the connecting ring is fixedly connected to the top center of the compression pad. The compression pad and the central spiral compression rod are coaxially arranged.

[0016] As a further description of the above technical solution:

[0017] The compression pad is located below the bottom of the cup-shaped stabilizing base and is coaxially arranged with the cup-shaped stabilizing base.

[0018] As a further description of the above technical solution:

[0019] The locking ring abuts against the top of the mechanical support structure, and the outer surface of the locking ring is provided with anti-slip teeth.

[0020] As a further description of the above technical solution:

[0021] The circular spring sheet has an arc-shaped sheet structure. The circular spring sheet is sleeved on the outside of the central spiral compression rod and is coaxially arranged with the cup-shaped stabilizing base.

[0022] As a further description of the above technical solution:

[0023] The circular spring is located above the cup-shaped stabilizing base, the supporting base is a disc-shaped base, and the circular spring is coaxially arranged with the supporting base.

[0024] Compared with the prior art, the advantages of the present invention are as follows:

[0025] The central spiral compression rod moves axially via a pressure knob, enabling continuous and precise adjustment of the compression pressure on the femoral artery. A locking ring secures the axial position of the central spiral compression rod, maintaining stable pressure and preventing loosening. A threaded rod drives a rotating block, which in turn drives a connecting buckle via a rotating long plate, connecting short plate, and U-shaped connecting block, facilitating convenient fine-tuning between the lumbar and leg straps. The combined restraint of the lumbar and leg straps ensures stable device fixation and prevents displacement of the compression position. A circular spring provides elastic restoring force, allowing for rapid return of the compression pad and quick release of pressure. A connecting ring connects the central spiral compression rod and the compression pad, enabling detachable replacement and easy cleaning and disinfection of the compression pad. A cup-shaped stabilizing base conforms to the groin area, ensuring accurate compression positioning and a comfortable fit. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main body of an embodiment of a femoral artery compression tourniquet assembly according to the present invention;

[0027] Figure 2 This is a schematic diagram of the connecting short plate of a femoral artery compression tourniquet assembly proposed in this invention;

[0028] Figure 3 This is a schematic diagram of the locking ring structure of a femoral artery compression tourniquet assembly proposed in this invention;

[0029] Figure 4 This is a schematic diagram of the connecting block of a femoral artery compression tourniquet assembly proposed in this invention;

[0030] Figure 5 This is a schematic diagram of the waist fixation belt of a femoral artery compression tourniquet assembly proposed in this invention;

[0031] Figure 6 This is a schematic diagram of the circular spring piece of a femoral artery compression tourniquet assembly proposed in this invention;

[0032] Figure 7 This is a schematic diagram of the compression pad of a femoral artery compression tourniquet assembly proposed in this invention.

[0033] Figure 8 This is a schematic diagram of the mechanical support structure of a femoral artery compression tourniquet assembly proposed in this invention.

[0034] Labeling Explanation: 1. Pressure Knob; 2. Central Spiral Pressure Rod; 3. Connecting Ring; 4. Pressure Pad; 5. Cup-shaped Stabilizing Base; 6. Mechanical Support Structure; 7. Leg Fixing Strap; 8. Locking Ring; 9. Connecting Mechanism; 10. Connecting Block; 11. Connecting Rotary Block; 12. Rotating Long Connecting Plate; 13. Threaded Rod; 14. Rotating Round Block; 15. Connecting Short Plate; 16. U-shaped Connecting Block; 17. Waist Fixing Strap; 18. Connecting Buckle; 19. Bearing Base; 20. Circular Spring. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0036] like Figure 1 and 8 The diagram shown is a schematic representation of an embodiment of a femoral artery compression tourniquet assembly provided by the present invention. It includes a compression knob 1 for the operator to hold and rotate, serving as the entry point for applying and releasing pressure. This allows the pressure to be continuously and precisely adjusted based on the rotation operation. A central spiral compression rod 2 is fixedly connected to the bottom end of the compression knob 1, acting as the main shaft for pressure transmission and moving along its own axis. This converts the rotation of the knob into the pressing and returning action of the compression pad 4, achieving a progressively increasing compression depth and precisely controllable compression amount. The bottom end of the central spiral compression rod 2 is externally fixed... A connecting ring 3 is fixedly connected, serving as a transitional connector between the compression pad 4 and the main shaft. This allows for the independent disassembly and replacement of the compression pad 4, facilitating cleaning, disinfection, and ensuring hygiene through repeated use. The bottom end of the connecting ring 3 is fixedly connected to the compression pad 4, which directly contacts the skin in the femoral artery puncture site area. This enables the concentrated transmission and continuous stabilization of the compression force, ensuring reliable compression of the puncture site and stable hemostasis. The compression pad 4 is a disc-shaped pad, with the connecting ring 3 fixedly connected to the top center of the compression pad 4. The compression pad 4 is coaxially arranged with the central spiral compression rod 2.

[0037] The central spiral compression rod 2 is externally threaded with a mechanical support structure 6, which supports and guides the central spiral compression rod 2, so as to achieve the effect that the compression direction is always along the predetermined axis, the compression process is stable and does not tilt, and the force is balanced. The bottom end of the mechanical support structure 6 is fixedly connected to a cup-shaped stable base 5, which conforms to the contour of the groin area and supports the entire device, so as to achieve accurate compression positioning, comfortable wearing of the device, and no deviation during the compression process. The compression pad 4 is located below the bottom of the cup-shaped stable base 5 and is coaxially set with the cup-shaped stable base 5.

[0038] The cup-shaped stabilizing base 5 has two external fixed connections of connecting blocks 10, which provide hooking points for the leg fixing straps 7. This achieves the effect of multi-point distribution of leg restraint force along the circumference of the base, uniform force distribution, and no overload of single-point force distribution. The connecting blocks 10 are equipped with connecting mechanisms 9, which enable the hooking and tightening of the leg fixing straps 7 with the main body of the device. This allows for quick connection and tightness adjustment of the leg restraint, achieving a fit that adapts to different leg sizes. The two connecting mechanisms 9 are equipped with leg fixing straps 7, which are fixed around the patient's thighs to achieve restraint positioning of the device on the thigh side. This ensures that the device is worn stably and is not prone to displacement or slippage when compressed.

[0039] The central spiral compression rod 2 is externally threaded with a locking ring 8, which locks the axial position of the central spiral compression rod 2, so as to achieve the effect of maintaining the pressure stably during long-term compression, preventing rotation and loosening, and preventing the pressure from decaying over time. The locking ring 8 abuts against the top of the mechanical support structure 6, and the outer surface of the locking ring 8 is provided with anti-slip teeth. The cup-shaped stabilizing base 5 is externally fixedly connected to a connecting rotating block 11, which provides a rotation fulcrum for the adjustment component. The adjustment component is rotatably connected to the connecting rotating block 11. The adjustment component includes a rotating long connecting plate 12, which limits and supports the threaded rod 13, so as to achieve the effect of stable rotation of the threaded rod 13 during the adjustment process, no deviation, and reliable adjustment action. The threaded rod 13 is rotatably connected to the rotating long connecting plate 12. Through rotation, the adjustment action is driven to realize convenient fine adjustment between the waist fixation belt 17 and the leg fixation belt 7, so as to achieve the effect of quick adaptation of the device to patients of different body types. The threaded rod 13 is externally fixedly connected to a rotating round block 14. The rotating round block 14 is externally rotatably connected to a connecting short plate 15, which connects the rotation transmission path and adapts the adjustment stroke. The connecting short plate 15 is externally rotatably connected to a U-shaped connecting block 16, which connects the waist fixation belt 17 and transmits the adjustment action, so as to achieve the effect of uniform transmission of adjustment force to the belt body and consistent tension on both sides of the belt body.

[0040] The bottom end of the cup-shaped stabilizing base 5 is fixedly connected to the bearing base 19, which supports the circular spring piece 20 and forms a support and positioning for the bottom of the device, so as to achieve the effects of stable installation of the spring piece, stable bottom structure of the device, and uniform pressure. The circular spring piece 20 is located above the cup-shaped stabilizing base 5. During the compression process, it stores elastic deformation energy and releases elastic recovery force when the compression is released, so as to achieve the effects of rapid return of the compression pad 4 and rapid release of the compression force. The bearing base 19 is a disc-shaped base, and the circular spring piece 20 is coaxially arranged with the bearing base 19. The circular spring piece 20 is arranged on the outside of the bearing base 19. The circular spring piece 20 has an arc-shaped sheet structure. The circular spring piece 20 is sleeved on the outside of the central spiral compression rod 2 and is coaxially arranged with the cup-shaped stabilizing base 5.

[0041] The U-shaped connecting block 16 is externally fixed with a waist fixation belt 17, which wraps around and fixes to the patient's waist, thereby achieving support and restraint of the device on the waist side. Together with the leg fixation belt 7, it achieves the effect of stable fixation of the device and preventing displacement of the compression position. The waist fixation belt 17 is provided with a connecting buckle 18 on the outside, which enables quick fastening and unfastening of the waist fixation belt 17, achieving convenient wearing and removal operations and quick adjustment of tightness. The connecting buckle 18 includes a limiting sleeve and an elastic buckle.

[0042] Working principle: The patient lies supine and the entire device is placed in the groin area, so that the cup-shaped stabilizing base 5 is fastened to the groin surface, the bearing base 19 is placed on the bottom of the cup-shaped stabilizing base 5, the compression pad 4 is aligned with the location of the femoral artery puncture point, and the axis of the central spiral compression rod 2 is aligned with the puncture point to determine the benchmark for subsequent compression operations.

[0043] Take the leg restraint strap 7 and wrap it around the patient's thigh. Both ends of the leg restraint strap 7 are connected to the connecting blocks 10 on both sides of the cup-shaped stabilizing base 5 via the connecting mechanism 9. Tighten the leg restraint strap 7 through the connecting mechanism 9, and the device provides initial restraint on the thigh side. Take the waist restraint strap 17 and wrap it around the patient's waist. Fasten the connecting buckles 18 at both ends of the waist restraint strap 17 together. The limiting sleeves in the connecting buckles 18 engage with the elastic buckles, completing the closure of the waist restraint strap 17, and the device provides support and restraint on the waist side.

[0044] According to the patient's body shape and the tightness of the straps, the adjustment component is used to adjust the distance between the waist fixation belt 17 and the leg fixation belt 7. The adjustment component uses the connecting rotating block 11 as the fulcrum to rotate the threaded rod 13. The threaded rod 13 rotates around its own axis under the limiting action of the rotating long connecting plate 12, and drives the rotating round block 14 to rotate synchronously. The rotation of the rotating round block 14 is transmitted to the U-shaped connecting block 16 through the connecting short plate 15. The U-shaped connecting block 16 pulls one side of the waist fixation belt 17, and the distance between the waist fixation belt 17 and the leg fixation belt 7 changes until the waist fixation belt 17 fits the patient's waist and is appropriately tight. The operator begins applying pressure to the femoral artery puncture site by holding the pressure knob 1 and rotating it clockwise. The pressure knob 1 drives the central spiral pressure rod 2 to rotate synchronously. Under the support and guidance of the mechanical support structure 6, the central spiral pressure rod 2 moves along its own axis toward the patient's skin. The downward movement of the central spiral pressure rod 2 is transmitted to the pressure pad 4 through the connecting ring 3. The pressure pad 4 moves toward the femoral artery puncture site along with the connecting ring 3 and gradually presses the puncture site. The pressure gradually increases as the number of rotations of the pressure knob 1 increases.

[0045] When the pressure of the compression pad 4 on the puncture point reaches the required level, stop rotating the compression knob 1, and then rotate the locking ring 8. The locking ring 8 rotates along the axial direction of the central spiral compression rod 2 until the locking ring 8 abuts against the top of the mechanical support structure 6. The axial position of the central spiral compression rod 2 is thus restricted by the locking ring 8, and the compression pad 4 remains in the current compression position.

[0046] During continuous compression, the circular spring piece 20 is located outside the central spiral compression rod 2 and above the cup-shaped stabilizing base 5. The circular spring piece 20 undergoes elastic deformation as the central spiral compression rod 2 is pressed down, and its deformation process remains coaxial with the supporting base 19. The compressive force is jointly borne by the mechanical support structure 6 and the cup-shaped stabilizing base 5. The leg fixation strap 7 and the waist fixation strap 17 maintain the restraint on the thigh side and waist side, respectively. The compression pad 4 is always aligned with the puncture point. After the compression hemostasis is completed, the compression is released. The operator rotates the compression knob 1 in the opposite direction. The compression knob 1 drives the central spiral compression rod 2 to rotate in the opposite direction. The central spiral compression rod 2 moves away from the skin along the axis. The compression pad 4 leaves the puncture point along with the connecting ring 3. At the same time, the circular spring piece 20 releases its stored elastic recovery force, and the compression pad 4 quickly returns to its original position, and the compressive force is released quickly. Step 9: After the pressure is released, press the connecting buckle 18 to disengage the limiting sleeve from the elastic buckle, untie the waist fixation belt 17, and then loosen the leg fixation belt 7 through the connecting mechanism 9. Remove the device from the patient as a whole to complete the entire compression hemostasis operation.

Claims

1. A femoral artery compression tourniquet assembly, comprising a compression knob (1), characterized in that: The bottom end of the pressure knob (1) is fixedly connected to a central spiral pressure rod (2), the bottom end of the central spiral pressure rod (2) is fixedly connected to a connecting ring (3), the bottom end of the connecting ring (3) is fixedly connected to a pressure pad (4), the external thread of the central spiral pressure rod (2) is connected to a mechanical support structure (6), the bottom end of the mechanical support structure (6) is fixedly connected to a cup-shaped stable base (5), the external part of the cup-shaped stable base (5) is fixedly connected to two connecting blocks (10), the connecting blocks (10) are provided with connecting mechanisms (9), the two connecting mechanisms (9) are provided with leg fixing straps (7), the external part of the cup-shaped stable base (5) is fixedly connected to a connecting rotating block (11), the connecting rotating block (11) is rotatably connected to an adjustment component, and the external part of the adjustment component is connected to a waist fixing strap (17).

2. The femoral artery compression tourniquet assembly according to claim 1, characterized in that: The central spiral compression rod (2) is externally threaded with a locking ring (8).

3. The femoral artery compression tourniquet assembly according to claim 1, characterized in that: The bottom end of the cup-shaped stabilizing base (5) is fixedly connected to a bearing base (19), and a circular spring piece (20) is provided on the outside of the bearing base (19).

4. The femoral artery compression tourniquet assembly according to claim 1, characterized in that: The adjustment assembly includes a rotating long connecting plate (12), on which a threaded rod (13) is rotatably connected. A rotating round block (14) is fixedly connected to the outside of the threaded rod (13). A connecting short plate (15) is rotatably connected to the outside of the rotating round block (14). A U-shaped connecting block (16) is rotatably connected to the outside of the connecting short plate (15). A waist fixing belt (17) is fixedly connected to the outside of the U-shaped connecting block (16).

5. The femoral artery compression tourniquet assembly according to claim 1, characterized in that: The waist fixing belt (17) is provided with a connecting buckle (18) on the outside, and the connecting buckle (18) includes a limiting sleeve and an elastic buckle.

6. The femoral artery compression tourniquet assembly according to claim 1, characterized in that: The compression pad (4) is a disc-shaped pad, and the connecting ring (3) is fixedly connected to the top center of the compression pad (4). The compression pad (4) and the central spiral compression rod (2) are coaxially arranged.

7. A femoral artery compression tourniquet assembly according to claim 1, characterized in that: The compression pad (4) is located below the bottom of the cup-shaped stabilizing base (5) and is coaxially arranged with the cup-shaped stabilizing base (5).

8. A femoral artery compression tourniquet assembly according to claim 2, characterized in that: The locking ring (8) abuts against the top of the mechanical support structure (6), and the outer surface of the locking ring (8) is provided with anti-slip teeth.

9. A femoral artery compression tourniquet assembly according to claim 3, characterized in that: The circular spring piece (20) has an arc-shaped sheet structure. The circular spring piece (20) is sleeved on the outside of the central spiral compression rod (2) and is coaxially arranged with the cup-shaped stable base (5).

10. A femoral artery compression tourniquet assembly according to claim 9, characterized in that: The circular spring (20) is located above the cup-shaped stabilizing base (5), the bearing base (19) is a disc-shaped base, and the circular spring (20) and the bearing base (19) are coaxially arranged.

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