Vein hemostasis patch

Abstract

The utility model relates to the technical field of medical instruments, in particular to a vein hemostasis patch which comprises a medical proof fabric, aseptic cotton attached to a wound surface is fixed on one side of the medical proof fabric, a capsule is attached to the other side of the medical proof fabric, and the interior of the capsule is divided into a water layer filled with water and an expansion layer filled with water absorption expansion materials through a diaphragm. And a pre-embedded needle for puncturing the diaphragm is also fixed in the expansion layer. During use, the aseptic cotton is attached to a vein wound surface and then fixed through the medical proof fabric, after the capsule is pressed, the pre-embedded needle pierces the diaphragm, so that water in the water layer flows into the expansion layer and is absorbed by the water-absorbing expansion material, and after the water-absorbing expansion material expands, the capsule pressurizes the wound surface, so that the wound surface is prevented from being damaged. Therefore, under the condition that the bleeding amount and exudation after venipuncture are limited, the wound surface liquid does not need to be passively absorbed to achieve pressurization, and the pressurization effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, and concretely relates to a vein hemostatic patch. BACKGROUND

[0002] With the enhancement of people's health consciousness, the number of physical examination is more and more, and blood examination is the basic project in physical examination. Before blood sampling, the doctor needs to prepare hemostatic cotton ball (or sterile gauze) and adhesive tape. After blood sampling, the doctor first presses the puncture bleeding point of the vein with hemostatic cotton ball or sterile gauze, and then fixes the hemostatic cotton ball (or sterile gauze) with adhesive tape, and the operation is complex, and the hemostatic effect is poor. The patient also needs to press the puncture bleeding point for a period of time, and cannot be loosened during pressing, and requires the patient to press the position of the puncture bleeding point accurately, otherwise bleeding or ecchymosis will be caused, which brings discomfort to the patient, and the puncture bleeding point is easily infected. After the hemostatic cotton ball or sterile gauze covers the puncture bleeding point, the patient cannot accurately judge the position of the puncture bleeding point, and the pressing position is not accurate.

[0003] For the vein hemostatic patch, there are many in the prior art, for example:

[0004] Chinese patent publication No. CN208114703U discloses a dynamic vein hemostatic patch, which is composed of backing layer, absorption layer and expansion layer from bottom to top, the absorption layer is in the shape of "Hui" character, the absorption layer and the backing layer form a central concave cavity and a peripheral ring concave cavity, the central concave cavity is filled with chitosan foam dressing, and the peripheral ring concave cavity is filled with hemostatic powder.

[0005] As can be seen, most vein hemostatic patches are generally composed of hemostatic layer, pressure layer and adhesive backing layer or medical adhesive tape. The pressure layer commonly relies on special designed convex part, elastic dressing or other special material expansion to realize pressure hemostasis, but the pressure of the expansion layer material of part of the hemostatic patches needs to rely on wound liquid absorption, and the amount of bleeding and exudation after vein puncture is limited, which may not stimulate the pressure layer material, resulting in no pressure effect or obvious effect of the vein hemostatic patch.

[0006] In view of this, we propose a vein hemostatic patch. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a vein hemostatic patch to solve the problems in the above background technology.

[0008] To achieve the above purpose, the utility model provides the following technical scheme:

[0009] The utility model provides a kind of intravenous hemostatic patch, including medical adhesive tape, sterile cotton is fixed with the surface of the medical adhesive tape, and the other side is attached with capsule, the inside of the capsule is divided into water layer filled with water and expansion layer filled with water-absorbing expansion material by septum, and pre-embedded needle is further fixed in the expansion layer, wherein, capsule is pressed, septum is pierced by pre-embedded needle, water in water layer flows into expansion layer and is absorbed by water-absorbing expansion material, so that expansion layer expands.

[0010] As a further scheme of the utility model: the sterile cotton, expansion layer and water layer are on the same axis, and the sterile cotton, medical adhesive tape, expansion layer and water layer are designed from bottom to top in sequence.

[0011] As a further scheme of the utility model: the outside of the capsule is fixed with PE film and waterproof film, wherein, PE film and waterproof film are bonded and form installation cavity for placing capsule, and waterproof film and PE film are both bonded and fixed with medical adhesive tape.

[0012] As a further scheme of the utility model: the PE film and capsule are both transparent.

[0013] As a further scheme of the utility model: the water-absorbing expansion material is one or more arbitrary proportion mixture of polyamide amine compound, superabsorbent resin and polysilicate.

[0014] Compared with prior art, the utility model has the beneficial effects that:

[0015] The intravenous hemostatic patch is fixed by medical adhesive tape after attaching sterile cotton to intravenous wound, and after pressing capsule, pre-embedded needle pierces septum, so that water in water layer flows into expansion layer and is absorbed by water-absorbing expansion material, and after expansion of water-absorbing expansion material, capsule pressurizes wound, so that in the case of limited bleeding and exudation after intravenous puncture, passive absorption of wound liquid is not needed to realize pressurization, and pressurization effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is overall structure schematic diagram of the scheme.

[0017] Significance of each reference numeral in the drawing is as follows:

[0018] 100, medical adhesive tape; 101, PE film; 102, waterproof film; 110, capsule; 111, water layer; 112, expansion layer; 113, pre-embedded needle; 120, sterile cotton. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0020] Embodiment

[0021] Most of the current venous hemostatic patches are generally composed of a hemostatic layer, a pressure layer and a backing layer or medical tape 100. The pressure layer commonly relies on specially designed protruding parts, elastic dressings or other special material expansion to achieve pressure hemostasis. However, the pressure of the expansion layer 112 material of some hemostatic patches needs to rely on the absorption of liquid from the wound. The amount of bleeding and exudation after venous puncture is limited, which may not stimulate the pressure layer material, resulting in no pressure effect or not obvious effect of the venous hemostatic patch.

[0022] Therefore, with reference to Figure 1 The purpose of the present embodiment is to provide a venous hemostatic patch. The medical tape 100 has a disinfectant cotton 120 attached to one side for wound adhesion. The disinfectant cotton 120 is used to disinfect the wound and reduce the risk of infection. The disinfectant cotton 120 has low manufacturing cost and simple manufacturing process, and is suitable as one of the raw materials for manufacturing the venous hemostatic patch. Since the wound needs to be pressed to stop bleeding, it is laborious to directly apply external force to press the wound. The existing method of absorbing liquid from the wound is also limited by the amount of bleeding and exudation after venous puncture. Therefore, a capsule 110 is attached to the side of the medical tape 100 away from the disinfectant cotton 120. The inside of the capsule 110 is divided into two layers by a diaphragm. The upper layer is a water layer 111 filled with water, and the lower layer is an expansion layer 112 filled with water-absorbing expansion material. The expansion layer 112 also has a pre-embedded needle 113 fixed therein to pierce the diaphragm. When the capsule 110 is pressed, the diaphragm is pierced by the pre-embedded needle 113, causing the water in the water layer 111 to flow into the expansion layer 112 and be absorbed by the water-absorbing expansion material, causing the expansion layer 112 to expand, thereby actively pressing the wound with the capsule 110. This is beneficial in the case of limited bleeding and exudation after venous puncture, without the need to passively absorb liquid from the wound to achieve pressure, thereby improving the pressure effect.

[0023] In view of the excellent effect of positive pressure in promoting wound hemostasis, the disinfectant cotton 120, the expansion layer 112 and the water layer 111 are designed to be on the same axis to form an efficient and synergistic hemostasis system, in which the components are arranged in the order of disinfectant cotton 120, medical adhesive tape 100 (as a medium for fixation and pressure transmission), expansion layer 112 and water layer 111 from bottom to top; during use, after the septum of the capsule 110 is pierced by the pre-embedded needle 113, the water in the water layer 111 flows into the expansion layer 112, and the water-absorbing and expanding material in the expansion layer 112 expands after absorbing water, generating stable pressure, which is directly and uniformly applied to the wound surface by the medical adhesive tape 100, forming effective positive pressure and greatly improving the hemostasis efficiency and effect.

[0024] During the operation of piercing the septum of the capsule 110 by the pre-embedded needle 113, if the pre-embedded needle 113 accidentally pierces the entire capsule 110, it will cause the water stored inside to leak unexpectedly, which may contaminate the wound being treated, not only interfering with the hemostasis effect, but also possibly exacerbating the patient's injury and discomfort, therefore, the capsule 110 is fixed with a PE film 101 and a waterproof film 102, and the PE film 101 and the waterproof film 102 are bonded to form an installation cavity for placing the capsule 110, the piercing direction of the pre-embedded needle 113 is directly opposite the PE film 101, by using the toughness and puncture resistance of the PE film 101, even if the pre-embedded needle 113 pierces the capsule 110, it can effectively prevent it from further penetrating the PE film 101, reducing the risk of water leakage, at the same time, if there is an extreme situation, such as a small amount of water not being absorbed by the water-absorbing and expanding material, the waterproof film 102 can also isolate the small amount of water from the wound; in addition, in order to facilitate the combination of the capsule 110 and the medical adhesive tape 100, therefore, the waterproof film 102 and the PE film 101 are bonded and fixed with the medical adhesive tape 100, simplifying the manufacturing process, without the need for additional tools or steps, the stable connection of the capsule 110 and the adhesive tape can be easily achieved, improving the production efficiency.

[0025] In order to intuitively and accurately monitor the piercing state of the septum inside the capsule 110, and to ensure that the water in the water layer 111 can flow smoothly into the expansion layer 112 and be effectively absorbed by the water-absorbing and expanding material, therefore, the PE film 101 and the capsule 110 are made of transparent materials, by using transparent materials, the entire operation process becomes visualized. When the pre-embedded needle 113 pierces the septum, medical personnel can clearly observe the occurrence of the piercing action, and how the water in the water layer 111 starts to flow to the expansion layer 112 in response to this action, this immediate feedback mechanism greatly improves the accuracy and safety of the operation, avoiding the piercing of the capsule 110 by the pre-embedded needle 113 due to misjudgment or delayed response; at the same time, in the demonstration of teaching and training, the transparent material enables students to intuitively see the working principle of the hemostasis mechanism, thereby more deeply understanding its operation principle and application scenarios.

[0026] From the raw materials of the water-absorbing and expanding material, the fluctuation of the production cost, and the overall consideration of environmental sustainability, the water-absorbing and expanding material is selected as one or more arbitrary proportion mixtures of polyamide amine compound, superabsorbent resin and polysilicate. The reason is that the three kinds of materials are relatively common, the cost is low when making, each of the three has unique water absorption performance and expansion characteristics, and by flexibly adjusting the mixing ratio, the performance of the water-absorbing and expanding material can be accurately controlled to meet the needs of different application scenarios. At the same time, the three kinds of materials have good biocompatibility and degradability, reducing the pollution and burden to the environment.

[0027] In summary, the working principle of the present scheme is as follows:

[0028] After the patient's vein is injured, the venous hemostatic patch is taken out, the sterile cotton 120 is aligned with the wound, and then the medical adhesive tape 100 is adhered to the patient's skin to fix it. After that, press the capsule 110 to make the pre-embedded needle 113 pierce the water layer 111, and the water in the water layer 111 flows into the swelling layer 112. The water-absorbing and expanding material in the swelling layer 112 expands after absorbing water, generating a stable pressure. This pressure directly and uniformly acts on the wound surface through the front surface of the medical adhesive tape 100, thereby achieving the effect of pressure hemostasis. After the wound stops bleeding or heals, the medical adhesive tape 100 can be pulled off from the patient's skin.

[0029] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. The description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in each example can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0030] Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the application; that is, any equivalent transformation made within the scope of the claims of the present application is within the protection scope of the claims of the present application.

Claims

1. A venous hemostatic patch comprising a medical adhesive tape (100), characterized in that: The medical adhesive plaster (100) is fixed with the disinfecting cotton (120) on one side, and is attached with the capsule (110) on the other side, the inside of the capsule (110) is divided into the water layer (111) filled with water and the expansion layer (112) filled with water-absorbing expansion material by the diaphragm, the expansion layer (112) is also fixed with the pre-embedded needle (113) which pierces the diaphragm, wherein, the diaphragm is pierced by the pre-embedded needle (113) by pressing the capsule (110), the water in the water layer (111) flows into the expansion layer (112) and is absorbed by the water-absorbing expansion material, so that the expansion layer (112) expands.

2. The venous hemostatic patch according to claim 1, characterized in that: The disinfecting cotton (120), the expansion layer (112) and the water layer (111) are on the same axis, and the disinfecting cotton (120), the medical adhesive plaster (100), the expansion layer (112) and the water layer (111) are designed in sequence from bottom to top.

3. The venous hemostatic patch of claim 1, wherein: The outside of the capsule (110) is fixed with the PE film (101) and the waterproof film (102), wherein, the PE film (101) and the waterproof film (102) are bonded and form the installation cavity for placing the capsule (110), and the waterproof film (102) and the PE film (101) are both bonded and fixed with the medical adhesive plaster (100).

4. The venous hemostatic patch of claim 3, wherein: The PE film (101) and the capsule (110) are both transparent.

5. The venous hemostatic patch of claim 1, wherein: The water-absorbing expansion material is one or more arbitrary proportion mixtures of polyamide amine compound, superabsorbent resin and polysilicate. The water-absorbing expansion material is one or more arbitrary proportion mixtures of polyamide amine compound, superabsorbent resin and polysilicate.

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