Venous hemostasis patch with air permeability and dry cotton ball wrapping function

Abstract

The utility model provides a vein hemostasis patch with air permeability and a dry cotton ball wrapping function, and particularly relates to the technical field of medical instruments. Aiming at the problems of insufficient air permeability, inconvenience in replacement of a cotton pad, single function, insufficient fixing stability and the like of the existing vein hemostasis patch, the utility model provides the vein hemostasis patch with the air permeability and the dry cotton ball wrapping function, which comprises an adjusting belt and a supporting belt connected to the adjusting belt, a cotton ball bin used for clamping a dry cotton ball is detachably connected to the supporting belt through a hook-and-loop fastener, and the cotton ball bin faces a venipuncture point. According to the device, efficient hemostasis of a puncture point is achieved, the cotton ball is convenient to replace, medicine adjuvant therapy is achieved, and wearing comfort and stability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a venous hemostatic patch with breathability and dry cotton ball wrapping function. Background Technology

[0002] As a common medical device, intravenous hemostatic patches are widely used for hemostasis after venipuncture, such as applying pressure to the puncture site after blood collection, infusion, or injection. Traditional intravenous hemostatic patches typically consist of adhesive tape and a cotton pad attached to it. The adhesive tape is applied to the skin surface, and the cotton pad applies pressure to the puncture site to achieve hemostasis.

[0003] However, existing intravenous hemostatic patches have the following shortcomings: First, most existing intravenous hemostatic patches use non-breathable adhesive tape, which can easily lead to local moisture and cause skin discomfort or even allergic reactions when applied to the skin for extended periods, especially for patients with sensitive skin. Second, the cotton pad of existing patches is usually fixed to the base material with adhesive or integral molding, making it difficult to remove or replace separately. When the cotton pad becomes saturated with blood and loses its effectiveness, the user needs to remove the entire patch and replace it with a new one, which not only increases material consumption and usage costs but may also cause secondary damage to the puncture site or increase the risk of infection due to tearing. Third, existing intravenous hemostatic patches mostly only have simple pressure hemostasis function and lack a drug release mechanism, so they cannot improve hemostasis efficiency or anti-infection ability with the help of drugs. Summary of the Invention

[0004] To address the aforementioned issues of insufficient breathability, inconvenient cotton pad replacement, limited functionality, and insufficient fixation stability, this utility model aims to provide a venous hemostatic patch with both breathability and dry cotton ball wrapping functionality. The device's breathable substrate design, detachable cotton ball compartment structure, microcapsule drug release mechanism, and stable clamping and connection design enable efficient hemostasis at the puncture point, convenient cotton ball replacement, drug-assisted treatment, and comfortable and stable wear.

[0005] The main idea of ​​the technical solution adopted in this utility model is to address the shortcomings of existing intravenous hemostatic patches by optimizing structural design and functional integration. It employs a breathable substrate and ventilation holes to improve breathability and reduce skin discomfort; a detachable cotton ball compartment is designed, and the cotton ball can be easily replaced via Velcro, reducing usage costs; an elastic clamping element and a microcapsule drug release mechanism are incorporated to release coagulants or antibacterial agents while holding the dry cotton ball, enhancing hemostasis and anti-infection effects; and the coordination of the adjusting strap and connecting buckle ensures stability and comfort when applied to different body parts. The overall design balances breathability, ease of operation, and functionality, making it suitable for hemostasis after intravenous puncture.

[0006] The technical objective of this utility model is achieved through the following technical solution:

[0007] A venous hemostatic patch with breathability and dry cotton ball wrapping function includes an adjustment band and a support band connected to the adjustment band. A cotton ball compartment for holding a dry cotton ball is detachably connected to the support band by Velcro, and the cotton ball compartment faces the venous puncture site.

[0008] To achieve the above technical solution, the cotton ball storage container further includes a storage body, and the inner wall of the storage body is provided with multiple elastic clamping components.

[0009] Furthermore, the elastic clamping member includes an elastic adjusting member, one end of which is connected to the inner wall of the chamber, and the other end is connected to a clamping piece.

[0010] Furthermore, multiple microcapsules are attached to the surface of the clamping piece with medical adhesive to release the drug upon pressure rupture when the dry cotton ball is pushed forward.

[0011] Furthermore, the diameter of the microcapsules is 50-80 micrometers.

[0012] Furthermore, the hook and loop fastener includes a first hook and loop fastener and a second hook and loop fastener; wherein, the first hook and loop fastener is disposed on the upper surface of the support band; the second hook and loop fastener is disposed on the lower surface of the cotton ball compartment, and the first hook and loop fastener and the second hook and loop fastener cooperate with each other to achieve a detachable connection between the cotton ball compartment and the support band.

[0013] By adopting the above technical solution, this utility model has the following technical effects:

[0014] By designing a detachable cotton ball compartment, the cotton ball compartment can be replaced independently, which makes it easy to quickly replace the cotton ball after it is saturated with blood. This reduces the frequency of changing the overall bandage, lowers the cost of use, and avoids secondary damage to the puncture site caused by tearing the bandage.

[0015] By incorporating elastic clamping elements and a microcapsule drug release mechanism, the stable clamping of the dry cotton ball is ensured, improving the reliability of hemostasis at the puncture site. At the same time, the release of coagulants or antibacterial agents through microcapsules during cotton ball advancement enhances hemostasis efficiency and anti-infection capabilities, thereby improving treatment outcomes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0017] Figure 1 This is a schematic diagram of the overall structure of a venous hemostatic patch with breathability and dry cotton ball wrapping function according to the present invention;

[0018] Figure 2 This is a schematic diagram of the support belt structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cotton ball compartment of this utility model;

[0020] Figure 4 This is a schematic diagram of the bottom structure of the cotton ball compartment of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the elastic clamping component of this utility model;

[0022] In the diagram, 1-adjusting belt; 11-first fastener hook and loop fastener; 12-second fastener hook and loop fastener; 2-support belt; 21-connecting buckle; 22-support receiving seat; 3-cotton ball compartment; 31-compartment body; 32-elastic clamping component; 321-elastic adjusting component; 322-clamping piece; 33-microcapsule; 4-hook fastener; 41-first hook and loop fastener; 42-second hook and loop fastener. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, not all embodiments.

[0024] refer to Figure 1-5 This application discloses a venous hemostatic patch with breathability and dry cotton ball wrapping function, including an adjustment band 1 and a support band 2 connected to the adjustment band 1. A cotton ball compartment 3 for holding dry cotton balls is detachably connected to the support band 2 by Velcro 4. The cotton ball compartment 3 faces the venous puncture point.

[0025] like Figure 2 The hook and loop fastener 4 includes a first hook and loop fastener 41 and a second hook and loop fastener 42. The first hook and loop fastener 41 is located on the upper surface of the support band 2, has a hook-and-loop structure, is made of nylon material, and has an area of ​​3 square centimeters. The second hook and loop fastener 42 is located on the lower surface of the cotton ball compartment 3, has a loop-and-loop structure, is also made of nylon material, and has the same area as the first hook and loop fastener 41, also 3 square centimeters. The first hook and loop fastener 41 and the second hook and loop fastener 42, through the interplay of their hook and loop surfaces, enable a detachable connection between the cotton ball compartment 3 and the support band 2.

[0026] like Figure 1 The adjustment band 1 is made of medical-grade polyester fiber material, which is flexible and elastic. It is 20 cm long, 2 cm wide, and 1 mm thick. The inner surface of the adjustment band 1 is coated with medical-grade hypoallergenic adhesive for attaching to the skin, and the outer surface is covered with a peelable protective film to ensure the cleanliness of the adhesive layer before use.

[0027] Preferably, the support band 2 is a long strip structure made of soft but supportive medical silicone composite non-woven fabric material, with a length of 10 cm, a width of 2 cm, and a thickness of 2 mm. The surface of this material has multiple ventilation holes with a diameter of 0.5 mm evenly distributed, providing good breathability and flexibility while offering sufficient support to maintain the structural stability of the hemostatic patch.

[0028] Preferably, each end of the support band 2 is provided with a connecting buckle 21. The connecting buckle 21 is a rectangular ring structure used to connect with the adjustment band 1 and is made of medical-grade polypropylene material. One end of the adjustment band 1 passes through the inner frame of the connecting buckle 21 on the left side of the support band 2, extends from the outside to the inside, and then folds back to form a ring structure. This ring structure is fixed by medical hot melt adhesive to ensure a firm connection between the adjustment band 1 and the connecting buckle 21. In addition, to enhance the stability of the fixed end, two rows of medical sutures are added to the outside of the adhesive area to further prevent the adjustment band 1 from slipping out of the connecting buckle 21.

[0029] Preferably, the other end (free end) of the adjusting band 1 passes through the connecting buckle 21 on the other side of the support band 2 to adjust its length and is fixed by a fastener structure to accommodate different sized body parts (such as the wrist or forearm). The free end of the adjusting band 1 passes from the inside to the outside through the inner frame of the connecting buckle 21 on the right side of the support band 2, and then is pulled outward to form an adjustable length segment. The free end of the adjusting band 1 is provided with a fastener structure, which uses a Velcro fastening mechanism.

[0030] Specifically, the inner surface of the free end of the adjusting band 1 (within 5 cm of the end) is provided with a first hook-and-loop fastener 11, which has a hook-and-loop structure. The outer surface of the middle section of the adjusting band 1 (within 10 cm of the fixed end) is provided with a second hook-and-loop fastener 12, which has a rough-textured structure. In use, the free end of the adjusting band 1 is passed through the right connecting buckle 21 and pulled to a suitable length so that the bandage fits the body part (such as the wrist circumference of about 15-20 cm). Then, the first hook-and-loop fastener 11 and the second hook-and-loop fastener 12 are aligned and pressed together, and the fastener is fixed by the cooperation of the hook and loop surfaces.

[0031] like Figure 2 A support seat 22 is provided in the middle of the support band 2. The support seat 22 is circular, with a diameter of 5 cm and a thickness of 1.5 mm. It is integrally formed with the support band 2 and is made of the same medical-grade silicone composite non-woven fabric material to ensure the uniformity and breathability of the overall structure. A first Velcro 41 is provided on the upper surface of the support seat 22.

[0032] Preferably, the cotton ball compartment 3 includes a compartment body 31 and an elastic clamping element 32. The compartment body 31 has a circular structure with an inner diameter of 2 cm and a depth of 0.8 cm. It is made of medical-grade polypropylene material and has sufficient rigidity to maintain its shape. The compartment body 31 has multiple ventilation holes around its perimeter, specifically 24 ventilation holes, which are evenly distributed on the side walls. Each hole has a diameter of 0.5 mm and a spacing of 0.6 cm. These ventilation holes further enhance the overall breathability and reduce skin moisture or discomfort caused by prolonged wear.

[0033] Preferably, the two inner walls of the compartment 31 are provided with a plurality of elastic clamping members 32. In this embodiment, there are two elastic clamping members 32 symmetrically distributed inside the compartment, or there can be four elastic clamping members 32 evenly distributed in four directions on the inner wall of the compartment 31 (one is provided every 90°) to provide a balanced clamping force.

[0034] Preferably, each elastic clamping member 32 includes an elastic adjusting member 321 and a clamping piece 322. The elastic adjusting member 321 is made of medical-grade polyethylene (PE) material, which has good elasticity and durability. It has an arc-shaped spring structure, a length of 0.6 cm, a width of 0.3 cm, and a thickness of 0.1 cm. One end of the elastic adjusting member 321 is fixedly connected to the inner wall of the chamber 31 by medical hot melt adhesive, and the other end is connected to the clamping piece 322.

[0035] It is worth noting that the clamping plate 322 is made of medical-grade polypropylene and is shaped like an arc blade. The inner surface of the clamping plate 322 (the side facing the center of the compartment 31) is designed with a rough texture to increase friction with the dry cotton ball and prevent slippage. The clamping plate 322 is tilted towards the center of the compartment 31 by the elastic force of the elastic adjusting member 321 to form a clamping space. The initial diameter of the clamping space is 1.8 cm (slightly smaller than the diameter of the dry cotton ball by 2 cm), ensuring that the dry cotton ball is properly clamped when pushed in.

[0036] like Figure 5 The inner surface of the clip 322 is covered with multiple microcapsules 33 using a medical adhesive. Each microcapsule 33 has a diameter of 60 micrometers and uses a biodegradable polymer (such as polylactic acid) as its shell material, encapsulating a coagulant (tranexamic acid, with a loading of 0.1 mg / capsule). Approximately 150 microcapsules 33 are distributed on the surface of each clip 322, at a density of 200 per square centimeter, ensuring uniform drug release.

[0037] Preferably, the microcapsules 33 are attached to the surface of the clamping sheet 322 using a medical-grade water-soluble adhesive (such as carboxymethyl cellulose CMC). The fixation process is as follows: first, a 10-micron-thickness layer of CMC adhesive is coated on the inner surface of the clamping sheet 322; then, the microcapsules 33 are uniformly attached to the adhesive layer using a spraying process; finally, the adhesive is cured by low-temperature drying (40°C, 30 minutes) to ensure that the microcapsules 33 are firmly attached.

[0038] Preferably, when the dry cotton ball is advanced, the clamping force applied by the clamping piece 322 is sufficient to cause the microcapsule 33 to rupture under pressure, releasing the internal coagulant. The released coagulant is absorbed by the dry cotton ball and penetrates to the puncture site through capillary action, promoting hemostasis.

[0039] It is worth noting that the adjustment belt 1 and support belt 2 are reusable. The materials and structural design of the adjustment belt 1 and support belt 2 enable them to withstand at least 50 cycles of reuse and washing (it is recommended to wash with warm water and neutral detergent and then air dry) without significantly reducing their stickiness and flexibility. The cotton ball compartment 3 is designed for single use and should be discarded after each use to avoid cross-infection and drug residue, ensuring hygiene and safety.

[0040] The workflow of this embodiment is as follows:

[0041] Before use, gently press a dry cotton ball (2 cm in diameter, made of medical absorbent cotton) into the chamber 31. During the insertion of the dry cotton ball, the clamping plates 322 of the two or four elastic clamping members 32 are compressed and expand outward, and the elastic adjusting member 321 undergoes elastic deformation, generating clamping force to firmly fix the dry cotton ball in the chamber 31. At the same time, the microcapsules 33 on the inner surface of the clamping plates 322 are squeezed by the dry cotton ball, and some microcapsules 33 rupture, releasing coagulant to the surface of the dry cotton ball.

[0042] The cotton ball compartment 3, containing dry cotton balls, is connected to the support holder 22 of the support band 2 via Velcro 4. The venous hemostatic patch is then placed at the venipuncture site (e.g., a wrist venipuncture site), and the dry cotton ball is aligned with the puncture site, applying moderate pressure. The dry cotton ball is stably compressed at the puncture site by the clamping force of the clamping piece 322, and the coagulant released from the microcapsule 33 penetrates to the puncture site, promoting hemostasis. The small gap (approximately 0.1 mm) between the compartment 31 and the clamping piece 322 ensures breathability and reduces stuffiness.

[0043] After use, discard cotton ball compartment 3 to avoid cross-infection and drug residue.

[0044] It should be understood that the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A venous hemostatic patch with breathability and dry cotton ball wrapping function, comprising an adjustment band (1) and a support band (2) connected to the adjustment band (1), characterized in that, The support band (2) is detachably connected to a cotton ball compartment (3) for holding dry cotton balls via Velcro (4), with the cotton ball compartment (3) facing the venipuncture point.

2. The intravenous hemostatic patch with breathability and dry cotton ball wrapping function according to claim 1, characterized in that, The cotton ball container (3) includes a container body (31), and the inner wall of the container body (31) is provided with multiple elastic clamping parts (32).

3. A venous hemostatic patch with breathability and dry cotton ball wrapping function according to claim 2, characterized in that, The elastic clamping member (32) includes an elastic adjusting member (321), one end of which is connected to the inner wall of the chamber (31), and the other end is connected to a clamping piece (322).

4. A venous hemostatic patch with breathability and dry cotton ball wrapping function according to claim 3, characterized in that, The surface of the clamping piece (322) is covered with multiple microcapsules (33) that are designed to rupture under pressure and release the drug when the dry cotton ball is pushed forward.

5. A venous hemostatic patch with breathability and dry cotton ball wrapping function according to claim 4, characterized in that, The diameter of the microcapsules (33) is 50-80 micrometers.

6. A venous hemostatic patch with breathability and dry cotton ball wrapping function according to claim 1, characterized in that, The Velcro (4) includes a first Velcro (41) and a second Velcro (42); The first Velcro strap (41) is provided on the upper surface of the support strap (2); The second Velcro (42) is set on the lower surface of the cotton ball compartment (3). The first Velcro (41) and the second Velcro (42) cooperate with each other to achieve a detachable connection between the cotton ball compartment (3) and the support band (2).

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