Clinical arm hemostasis and bandaging first-aid device for emergency department

Abstract

The invention discloses a clinical arm hemostasis binding first-aid device for an emergency department, relates to the technical field of medical treatment, and aims to solve the technical problem of high local pressure in the arm hemostasis process, the clinical arm hemostasis binding first-aid device comprises an outer lantern ring, a positioning ring plate is arranged on the inner circle of the outer lantern ring, a fixing ring is arranged on the inner circumference of the positioning ring plate, and a connecting hoop is fixed on the periphery of the fixing ring. The periphery of the connecting hoop is connected with an extension rod fixed to the positioning ring plate, hollow bag cloth is arranged on the periphery of the fixing ring, a plurality of stepless compression structures distributed in an annular array mode are arranged on the periphery of the fixing ring around the center of the fixing ring, each stepless compression structure comprises a compression connecting rod, and gap compensation parts are further arranged among the multiple compression connecting rods. Stepless rotary control structures for driving synchronous rotation are installed at the end of the stepless compression structure, and a stepless regulation and control structure is arranged on one side of the multiple stepless rotary control structures. Through cooperation of the stepless compression structure, the stepless rotary control structure and the stepless regulation and control structure, the stepless compression device has the advantages that the pressure is uniform, and the compression force can be subjected to stepless regulation.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and more particularly to a clinical arm hemostatic bandage first aid device for an emergency department. Background Art

[0002] When an arm is injured, compression is applied to the upper third of the arm to stop bleeding, followed by a bandage. Rubber bands are widely used for hemostasis and limb immobilization due to their ease of use. However, due to multiple factors, including the material properties of the rubber band, how it is used, and the physiological structure of the human arm, the band's elastic force generated during stretching is proportional to the amount of elongation. To achieve hemostasis, the rubber band must be stretched to a certain degree, generating significant elastic force. Furthermore, due to its rigidity, this significant elastic force is concentrated in the area of contact with the arm, resulting in excessive localized pressure. Therefore, rubber bands are often manually wrapped around the arm to achieve hemostasis. Uneven wrapping force or an inconsistent number of wraps can cause varying degrees of tightness on the arm, placing greater pressure on tighter areas. This often results in excessive and unevenly distributed localized pressure when the band is elastically compressed. The high elastic modulus and internal structural flaws of the rubber band, combined with improper wrapping and a lack of a regulating mechanism, not only cause significant discomfort to the patient but can also easily lead to localized tissue, vascular, and nerve damage. In view of this, we propose a clinical arm hemostatic bandage first aid device for emergency department. Summary of the Invention

[0003] The purpose of the present invention is to provide an emergency department clinical arm hemostasis bandage first aid device to solve the technical problem of excessive local pressure that is prone to occur during arm hemostasis.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: a clinical arm hemostatic bandage first aid device for emergency departments, comprising an outer collar, a positioning ring plate provided on the inner ring of the outer collar, a positioning column connected between the outer periphery of the positioning ring plate and the inner wall of the outer collar, a fixing ring provided on the inner periphery of the positioning ring plate, a connecting hoop fixed on the outer periphery of the fixing ring, an extension rod fixed to the positioning ring plate on the outer periphery of the connecting hoop, a hollow bag cloth provided on the outer periphery of the fixing ring, and a plurality of stepless compression structures distributed in an annular array provided on the outer periphery of the fixing ring at its center;

[0005] The stepless compression structure includes a compression link, and a plurality of the compression links form a quasi-circular shape. The compression link is composed of soft and hard materials distributed in an alternating manner. A rotating sleeve is provided on one side of the compression link, and the center of the rotating sleeve is rotatably connected to the outer periphery of the fixed ring. An articulated link is connected between the rotating sleeve and the compression link, and both ends of the articulated link are movably hinged to the compression link and the rotating sleeve respectively. A gap compensation member is also provided between the plurality of the compression links, and a stepless rotary control structure for driving synchronous rotation is installed on the end of the rotating sleeve, and a stepless regulation structure is arranged on one side of the plurality of stepless rotary control structures;

[0006] A pressure equalizing structure is also provided on the periphery of the bag cloth.

[0007] Preferably, the compression link includes a hard connecting block and a soft connecting block, the hard connecting block and the soft connecting block are hollow structures, the hard connecting block and the soft connecting block are made of hard material and soft material respectively, and the side of the hard connecting block is movably hinged to the hinged connecting rod.

[0008] Preferably, the gap compensation part is composed of a soft rubber column and an elastic tie bar, the two ends of the soft rubber column are respectively located between the inner peripheries of adjacent compression links, one end of the elastic tie bar is fixed to one side of the soft rubber column, and the other end of the elastic tie bar is fixed to the inner wall of the compression link.

[0009] Preferably, the stepless rotation structure includes a stepless rotation worm wheel, one side of the stepless rotation worm wheel is fixed to the side of the rotating sleeve, the outer periphery of the stepless rotation worm wheel is engaged with a stepless rotation worm, and the stepless rotation worm passes through the positioning ring plate and is rotationally connected to the positioning ring plate.

[0010] Preferably, the stepless control structure includes a stepless control connecting column, the bottom end of the stepless control connecting column is fixed to the top of the stepless rotary worm, a stepless control bevel tooth is fixed on the top of the stepless control connecting column, a control sleeve is provided on one side of the stepless control bevel tooth, and the control sleeve is rotatably connected to the outer ring.

[0011] Preferably, the regulating sleeve consists of an engaging end and a rotating end, and a sawtooth groove adapted to the stepless regulating bevel gear is provided on one side of the engaging end, and the sawtooth groove is engaged with the stepless regulating bevel gear.

[0012] Preferably, the pressure equalizing structure includes a latex layer, the inner periphery of the latex layer is bonded and fixed to the outer wall of the bag cloth, a plurality of connecting hoops pass through the latex layer, the outer periphery of the latex layer is connected to an airbag body, and the interior of the airbag body is filled with gas.

[0013] Preferably, a plurality of pressure-bearing arc plates are installed on the inner wall of the latex layer, and the plurality of pressure-bearing arc plates are distributed in a circular array with the bag cloth as the center. The pressure-bearing arc plates are curved arc structures, and the vertical direction of the pressure-bearing arc plates is a flat surface body that increases the pressure-bearing area.

[0014] Preferably, the outer periphery of the adjusting end is engraved with an adjusting index, and the outer ring is located in the outer periphery of the adjusting sleeve and is engraved with angle value lines distributed in a circular array.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention realizes precise stepless adjustment of the compression force by combining a stepless compression structure with a stepless rotation control structure and a stepless regulation structure. The rotating regulation sleeve can synchronously drive multiple rotating sleeves to rotate through a series of gear transmissions, adjust the quasi-circular diameter composed of the compression connecting rod, and then change the squeezing force of the airbag body, adapting to the thickness of the arms of different patients and the actual hemostasis needs, greatly improving the patient's comfort, and avoiding tissue, blood vessel and nerve damage caused by improper pressure, solving the problem of excessive local pressure during arm hemostasis.

[0017] 2. The present invention also achieves uniform compression through a pressure-equalizing structure. The latex layer is combined with the airbag body to enable the pressure to be evenly distributed on the periphery of the arm, avoiding the problem of excessive local pressure. The pressure-bearing arc plate increases the compression area to prevent pressure sores caused by a small compression area, and better protect the patient's skin and tissue. The compression connecting rod is composed of hard connecting blocks and soft connecting blocks that are staggered, combined with gap compensation parts to ensure that the circular shape is always maintained during the stepless adjustment process, maintaining the uniformity of the peripheral pressure. This not only improves the hemostatic effect, but also further solves the problem of excessive local pressure that is prone to occur during the arm hemostasis process.

[0018] 3. The present invention also uses the design of a stepless control structure, so that the operator can easily adjust the compression force by rotating the control sleeve. The concave and convex grooves and control indicators on the outer periphery of the control sleeve, as well as the angle value lines on the outer ring, provide the operator with clear operating instructions, facilitating precise control. The design of the rubber ring ensures the stable position of the control sleeve after adjustment, prevents unexpected changes in the compression force, and further solves the problem of excessive local pressure during arm hemostasis.

[0019] The clinical arm hemostasis and bandage first aid device of this emergency department has effectively overcome the difficulties of traditional rubber band hemostasis methods and demonstrated significant advantages in multiple dimensions. It uses the pressure-equalizing structure to disperse and balance the pressure through the airbag and the pressure-bearing arc plate to avoid pressure sores. It also relies on the stepless compression and control structure to flexibly adapt to different arm conditions, accurately adjust the compression force, and prevent tissue damage. At the same time, the compression link is staggered with hard and soft materials, and is matched with gap compensation parts to maintain a circular shape during adjustment to ensure uniform and stable pressure. In addition, the stepless control structure uses the control sleeve to achieve synchronous and precise adjustment. The concave and convex grooves, control indicators, and angle value lines on the outer ring on the control sleeve greatly improve the convenience of operation and control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the left-side structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the right shaft side structure of the present invention;

[0022] Figure 3 It is a schematic diagram of a half-section structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the present invention when the compression diameter is the smallest;

[0024] Figure 5 For the present invention Figure 4 A magnified view of the structure of the part at A in the middle;

[0025] Figure 6 This is a structural diagram of the compression diameter adjustment and amplification process in the present invention;

[0026] Figure 7 Schematic diagram of the cross-section structure of the gap compensation part of the present invention;

[0027] Figure 8 Schematic diagram of a half-section structure of the pressure-equalizing structure in the present invention;

[0028] Figure 9 It is a schematic diagram of the connection structure between the stepless compression structure, the stepless regulation structure and the stepless rotation control structure in the present invention.

[0029] Description of the numbers in the figure:

[0030] 1. Outer ring; 2. Positioning ring plate; 3. Positioning column; 4. Fixing ring; 5. Connecting hoop; 6. Bag cloth; 7. Stepless compression structure; 8. Stepless rotation control structure; 9. Stepless regulation structure; 10. Pressure equalization structure;

[0031] 71. Compression connecting rod; 711. Hard connecting block; 712. Soft connecting block; 702. Rotating sleeve; 703. Articulated connecting rod; 74. Gap compensation piece; 741. Soft rubber column; 742. Elastic tension bar;

[0032] 801, stepless rotation control worm wheel; 802, stepless rotation control worm;

[0033] 901. Steplessly adjustable connecting column; 902. Steplessly adjustable bevel gear; 93. Adjusting sleeve; 931. Engaging end; 932. Adjusting rotating end; 101. Latex layer; 102. Airbag body; 103. Pressure-bearing arc plate. DETAILED DESCRIPTION

[0034] like Figures 1 to 9As shown, the present invention relates to a clinical arm hemostatic bandage first aid device for emergency departments. The main structure of the device is based on an outer sleeve 1. The outer sleeve 1 is made of a high-strength, lightweight alloy material. It not only has good structural stability and can provide reliable support for internal components, but also reduces the overall weight of the device, making it convenient for medical staff to operate and for patients to wear. The inner ring of the outer sleeve 1 is provided with a positioning ring plate 2, and the positioning ring plate 2 is firmly connected to the inner wall of the outer sleeve 1 through a plurality of positioning columns 3. The design of the positioning columns 3 is subject to precise mechanical calculations, and the number, position and size of the positioning columns 3 are optimized to ensure that the positioning ring plate 2 maintains a precise position in the outer sleeve 1, laying the foundation for the installation and coordinated work of subsequent components.

[0035] A fixing ring 4 is provided on the inner periphery of the positioning ring plate 2. The fixing ring 4 plays a core bearing role. A connecting hoop 5 is fixed on it. The connecting hoop 5 is connected to the positioning ring plate 2 through an extension rod. This connection method further enhances the stability of the fixing ring 4. A hollow bag cloth 6 is provided on the outer periphery of the fixing ring 4. The bag cloth 6 is made of a flexible, breathable and biocompatible material.

[0036] In order to achieve uniform compression on the patient's arm, a pressure-equalizing structure 10 is set on the periphery of the bag cloth 6. The pressure-equalizing structure 10 consists of a latex layer 101, an airbag body 102 and a pressure-bearing arc plate 103. The inner periphery of the latex layer 101 is tightly combined with the outer wall of the bag cloth 6 through a special bonding process to ensure that the connection between the two is firm and sealed. Multiple connecting hoops 5 pass through the latex layer 101, which not only provides additional support for the latex layer 101, but also optimizes the pressure conduction path. The periphery of the latex layer 101 is connected to the airbag body 102, and the interior of the airbag body 102 is filled with purified inert gas. The gas, such as nitrogen, the airbag body 102 is designed with good elasticity and plasticity, and can be adaptively adjusted according to the shape and thickness of the patient's arm to make the pressure evenly distributed on the periphery of the arm. The inner wall of the latex layer 101 is installed with multiple pressure arc plates 103. These pressure arc plates 103 are distributed in a circular array with the bag cloth 6 as the center. The pressure arc plates 103 are made of high-hardness materials and are designed to be U-shaped. In the vertical direction, the pressure arc plates 103 are flat surface bodies. By increasing the contact area with the arm, the pressure sore problem caused by too small a compression area is effectively avoided.

[0037] In order to achieve stepless adjustment of the compressing force of the upper arm, a plurality of stepless compression structures 7 distributed in a circular array are set at the center of the outer periphery of the fixed ring 4. The stepless compression structure 7 is mainly composed of a compression link 71, a rotating sleeve 702, a hinged link 703 and a gap compensation part 74. The compression link 71 is composed of a plurality of hard connecting blocks 711 and soft connecting blocks 712 staggered to form a quasi-circular structure. The hard connecting block 711 is made of high-strength engineering plastic and has a hollow structure inside. This design reduces weight while ensuring structural strength. The soft connecting block 712 is made of flexible rubber material and is also a hollow structure, which gives it good flexibility and buffering performance. The staggered distribution of the hard connecting block 711 and the soft connecting block 712 not only ensures the stability of the structure, but also gives the compression link 71 a certain flexibility, so that it can better adapt to the shape changes of the arm.

[0038] The side hard connecting block 711 is movably hinged to the hinged link 703, and a rotating sleeve 702 is provided on one side of the compression link 71. The center of the rotating sleeve 702 and the outer periphery of the fixed ring 4 are rotationally connected by high-precision bearings to ensure that the rotating sleeve 702 can rotate flexibly and smoothly. The rotating sleeve 702 and the compression link 71 are connected by the hinged link 703, and the two ends of the hinged link 703 are respectively connected to the compression link 71 and the rotating sleeve 702 by a movable hinge. This hinge design enables the hinged link 703 to ensure the stability of the rotational movement through displacement when the rotating sleeve 702 rotates, thereby effectively avoiding motion interference.

[0039] A gap compensation piece 74 is provided between the multiple compression links 71. The gap compensation piece 74 consists of a soft rubber column 741 and an elastic tie rod 742. The soft rubber column 741 is made of highly elastic silicone material, and its two ends are respectively located between the inner peripheries of adjacent compression links 71. One end of the elastic tie rod 742 is fixed to one side of the soft rubber column 741, and the other end is fixed to the inner wall of the compression link 71. When the inner diameter of the quasi-circular shape formed by the compression links 71 shrinks, the tension of the elastic tie rod 742 will tighten the soft rubber column 741, thereby compensating for the gap between the multiple compression links 71 after adjustment, ensuring that the quasi-circular shape is always maintained during the adjustment process, and maintaining uniform pressure on the periphery.

[0040] Working principle: When the compression force needs to be adjusted, the rotating sleeve 702 is rotated to drive the articulated link 703 to rotate. Due to the articulated characteristics of the articulated link 703, it can ensure the stability of the movement through displacement when the rotating sleeve 702 rotates. As the articulated link 703 rotates, the quasi-circular diameter of the compression link 71 is adjusted steplessly. Different rotation angles correspond to different quasi-circular diameters, which in turn produce different degrees of squeezing on the latex layer 101 and the airbag body 102. In this process, the hard connecting block 711, the soft connecting block 712 and the soft rubber column 741 work together, and cooperate with the adaptive characteristics of the airbag body 102 to evenly distribute the pressure on the periphery of the patient's arm. Through this stepless adjustment method, the device can adapt to the thickness of different patients' arms, achieve precise adjustment of the compression force, improve the patient's comfort, and effectively protect local tissues, blood vessels and nerves.

[0041] In order to adjust the pressing force steplessly, a stepless rotary control structure 8 for driving synchronous rotation is installed at the end of the rotating sleeve 702. The stepless rotary control structure 8 includes a stepless rotary control worm wheel 801. One side of the stepless rotary control worm wheel 801 is fixed to the side of the rotating sleeve 702. The outer periphery of the stepless rotary control worm wheel 801 is meshed with a stepless rotary control worm 802. The stepless rotary control worm 802 passes through the positioning ring plate 2 and is rotatably connected to the positioning ring plate 2. A stepless control structure 9 is arranged on one side of the multiple stepless rotary control structures 8. The stepless control structure 9 includes a stepless control connecting column 901. The bottom end of the stepless control connecting column 901 is fixed to the top of the stepless rotary control worm 802. The top of the stepless control connecting column 901 is fixed with a stepless control Bevel gear 902, a regulating sleeve 93 is provided on one side of the stepless regulating bevel gear 902, the regulating sleeve 93 is rotatably connected to the outer ring 1, a rubber ring is provided between the regulating sleeve 93 and the outer ring 1, and the resistance of the rubber ring can ensure that the position of the regulating sleeve 93 after adjustment is stable, the regulating sleeve 93 is composed of a meshing end 931 and a rotating end 932, a sawtooth groove adapted to the stepless regulating bevel gear 902 is provided on one side of the meshing end 931, the sawtooth groove is meshed with the stepless regulating bevel gear 902, a plurality of concave and convex grooves are provided on the outer peripheral side wall of the rotating end 932, the outer periphery of the rotating end 932 is engraved with regulating indicators, and the outer ring 1 is in the peripheral area of the regulating sleeve 93 and is engraved with angle value lines distributed in a circular array.

[0042] Working principle: To achieve stepless control, the adjusting end 932 of the control sleeve 93 is rotated to drive the meshing end 931 to rotate, so that the sawtooth groove drives the stepless control bevel gear 902 to rotate, which makes the stepless control connecting column 901 rotate, and further rotates the stepless rotary worm 802;

[0043] Combined with the meshing design of the stepless rotation worm wheel 801 and the stepless rotation worm 802, the stepless rotation worm wheel 801 can be rotated to drive the rotating sleeve 702 to rotate. Moreover, since the meshing end 931 synchronously drives the rotation of multiple stepless control bevel teeth 902, it can play the role of synchronous rotation and improve stability.

[0044] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A clinical arm hemostatic bandage first aid device for emergency departments, characterized in that: The invention comprises an outer ring (1), wherein the inner ring of the outer ring (1) is provided with a positioning ring plate (2), a positioning column (3) is connected between the outer periphery of the positioning ring plate (2) and the inner wall of the outer ring (1), a fixing ring (4) is provided on the inner periphery of the positioning ring plate (2), a connecting hoop (5) is fixed on the outer periphery of the fixing ring (4), an extension rod fixed to the positioning ring plate (2) is connected on the outer periphery of the connecting hoop (5), a hollow bag cloth (6) is provided on the outer periphery of the fixing ring (4), and a plurality of stepless compression structures (7) distributed in an annular array are provided on the outer periphery of the fixing ring (4) at its center; The stepless compression structure (7) includes a compression link (71), and a plurality of the compression links (71) form a quasi-circular shape. The compression link (71) is composed of soft and hard materials distributed in an alternating manner. A rotating sleeve (702) is provided on one side of the compression link (71), and the center of the rotating sleeve (702) is rotatably connected to the outer periphery of the fixed ring (4). A hinged link (703) is connected between the rotating sleeve (702) and the compression link (71). The two ends of the hinged link (703) are respectively movably hinged to the compression link (71) and the rotating sleeve (702). A gap compensation member (74) is also provided between the plurality of the compression links (71). A stepless rotary control structure (8) for driving synchronous rotation is installed at the end of the rotating sleeve (702), and a stepless regulating structure (9) is arranged on one side of the plurality of the stepless rotary control structures (8); A pressure equalizing structure (10) is also provided on the periphery of the bag cloth (6).

2. The first aid device for clinical arm hemostasis and bandage in emergency department according to claim 1, characterized in that: The compression link (71) includes a hard link block (711) and a soft link block (712), wherein the hard link block (711) and the soft link block (712) are hollow structures, and the hard link block (711) and the soft link block (712) are made of hard material and soft material respectively, wherein the hard link block (711) is movably hinged to the hinge link (703) on the side.

3. The first aid device for clinical arm hemostasis and bandage in emergency department according to claim 2, characterized in that: The gap compensation member (74) is composed of a soft rubber column (741) and an elastic tie bar (742), the two ends of the soft rubber column (741) are respectively located between the inner peripheries of adjacent compression links (71), one end of the elastic tie bar (742) is fixed to one side of the soft rubber column (741), and the other end of the elastic tie bar (742) is fixed to the inner wall of the compression link (71).

4. The first aid device for clinical arm hemostasis and bandage in emergency department according to claim 3, characterized in that: The stepless rotary control structure (8) comprises a stepless rotary control worm wheel (801), one side of the stepless rotary control worm wheel (801) is fixed to the side of the rotating sleeve (702), the outer periphery of the stepless rotary control worm wheel (801) is meshed with a stepless rotary control worm (802), and the stepless rotary control worm (802) passes through the positioning ring plate (2) and is rotationally connected to the positioning ring plate (2).

5. The first aid device for clinical arm hemostasis and bandage in emergency department according to claim 4, characterized in that: The stepless control structure (9) comprises a stepless control connecting column (901), the bottom end of the stepless control connecting column (901) is fixed to the top of the stepless rotary worm (802), a stepless control bevel gear (902) is fixed to the top of the stepless control connecting column (901), a control sleeve (93) is provided on one side of the stepless control bevel gear (902), and the control sleeve (93) is rotatably connected to the outer ring (1).

6. The first aid device for clinical arm hemostasis and bandage in emergency department according to claim 5, characterized in that: The regulating sleeve (93) is composed of an engagement end (931) and a rotation regulating end (932); a sawtooth groove adapted to the stepless regulating bevel gear (902) is provided on one side of the engagement end (931); and the sawtooth groove is engaged with the stepless regulating bevel gear (902).

7. The first aid device for clinical arm hemostasis and bandage in emergency department according to claim 6, characterized in that: The pressure equalizing structure (10) comprises a latex layer (101), the inner periphery of the latex layer (101) is bonded and fixed to the outer wall of the bag cloth (6), a plurality of connecting hoops (5) pass through the latex layer (101), the outer periphery of the latex layer (101) is connected to an air bag body (102), and the interior of the air bag body (102) is filled with gas.

8. The first aid device for clinical arm hemostasis and bandage in emergency department according to claim 7, characterized in that: A plurality of pressure-bearing arc plates (103) are installed on the inner wall of the latex layer (101), and the plurality of pressure-bearing arc plates (103) are distributed in a circular array with the bag cloth (6) as the center. The pressure-bearing arc plates (103) are curved arc structures, and the vertical direction of the pressure-bearing arc plates (103) is a flat surface body that increases the pressure-bearing area.

9. The first aid device for clinical arm hemostasis and bandage in emergency department according to claim 8, characterized in that: The outer periphery of the adjusting end (932) is engraved with an adjusting index, and the outer ring (1) is located in the outer periphery of the adjusting sleeve (93) and is engraved with angle value lines distributed in a ring array.

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