Puncture point capsule bag hemostatic patch
The puncture point pouch hemostatic dressing, through its inner layer, pouch, and Velcro design, solves the problems of complex and uncomfortable hemostasis at the femoral artery puncture point during vascular interventional surgery. It achieves simple and efficient hemostasis and healing, reduces the risk of infection, and improves nursing efficiency and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY)
- Filing Date
- 2025-05-06
- Publication Date
- 2026-07-21
Smart Images
Figure CN224523170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a puncture point pouch hemostatic patch. Background Technology
[0002] Interventional vascular surgery is a minimally invasive diagnostic and treatment technique. Guided by medical imaging equipment, instruments such as needles, catheters, and guidewires are inserted into blood vessels through a puncture site on the body surface. Angiography is first performed by injecting contrast agents to clearly visualize the vascular morphology and lesions for accurate diagnosis. Subsequently, appropriate treatments are administered according to different conditions, such as using balloon dilation to narrowed vessels, implanting stents to support blocked vessels, and injecting chemotherapy drugs or embolic agents for cancer patients. This procedure is minimally invasive, requiring only a tiny puncture site, allowing for precise targeting of the lesion site, minimizing damage to normal tissues, resulting in fewer complications, faster patient recovery, and shorter hospital stays. It is widely used in cardiovascular, cerebrovascular, peripheral vascular diseases, and oncology fields. Diseases such as coronary heart disease, cerebral aneurysms, lower extremity arteriosclerosis obliterans, and liver cancer are often treated using interventional vascular surgery.
[0003] In vascular interventional surgery, hemostasis at the femoral artery puncture site is a crucial step. Common postoperative complications include bleeding or hematoma at the puncture site, which can be life-threatening in severe cases. For wound care after femoral vein wounds and femoral artery sutures, traditional hemostasis methods such as elastic bandages and sandbag compression are not only complex to perform but also suffer from poor patient comfort and inconsistent hemostatic effects. Utility Model Content
[0004] This utility model provides a puncture point pouch hemostatic patch to solve the above-mentioned technical problems.
[0005] A puncture point pouch hemostatic dressing includes: a dressing body comprising an inner layer and an outer layer, the outer layer having an observation area, the inner layer being disposed along the edge of the observation area, the inner layer being used to adhere to the area around the wound; and a pouch disposed within the observation area, the pouch having an observation window on its surface, the observation window being transparent, and the pouch having an injection channel on its surface, allowing medication to seep out of the pouch and act on the wound.
[0006] Preferably, the puncture point pouch hemostatic patch further includes auxiliary Velcro straps, which are respectively disposed at opposite ends of the patch body.
[0007] Preferably, the inner layer has a medical soft adhesive layer on the side away from the outer layer.
[0008] Preferably, the injection channel is provided with a positioning slot, which is used to fix the syringe.
[0009] Preferably, the outer layer is provided with a temperature-sensitive color-changing strip, and the color-changing range of the color-changing strip includes white, blue and red.
[0010] Preferably, the observation window is elliptical.
[0011] Preferably, the material of the bag is a cellulose-based film.
[0012] Preferably, the tensile strength of the outer layer is greater than 2.5 GPa.
[0013] Preferably, the thickness of the inner lining layer is 200 μm to 2 mm.
[0014] Preferably, a protective film is also provided on the outer layer.
[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.
[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of the structure of the puncture point pouch hemostatic patch described in one embodiment of the present invention.
[0019] Figure 2 This is a side view of the puncture point pouch hemostatic patch according to one embodiment of the present invention.
[0020] In the diagram: 100, puncture site pouch hemostatic patch; 110, patch body; 111, inner layer; 112, outer layer; 113, protective film; 120, pouch; 121, observation window; 122, injection channel; 130, auxiliary Velcro. Detailed Implementation
[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0022] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.
[0023] This utility model embodiment provides a puncture point pouch 120 hemostatic patch, such as Figure 1 and Figure 2 As shown, the puncture point pouch 120 hemostatic dressing includes: a dressing body 110, which includes an inner dressing layer 111 and an outer dressing layer 112. The outer dressing layer 112 has an observation area, and the inner dressing layer 111 is arranged along the edge of the observation area. The inner dressing layer 111 is used to adhere to the area around the wound. The pouch 120 is arranged in the observation area. The surface of the pouch 120 has an observation window 121, which is transparent. The surface of the pouch 120 also has an injection channel 122, so that the medication in the pouch 120 can seep out of the pouch 120 and act on the wound.
[0024] The working principle and beneficial effects of the above technical solution are as follows: the inner layer 111 adheres tightly to the skin around the wound through a medical soft adhesive layer, forming initial fixation; the observation area of the outer layer 112 exposes the pouch 120, allowing medical staff to directly observe the wound condition through the transparent observation window 121; medical staff can directly monitor bleeding at the puncture site and wound healing progress without removing the patch. When it is necessary to promote wound healing, medication is injected into the pouch 120 through the injection channel 122. The medication seeps out of the pouch 120 and acts on the wound, effectively reducing the risk of wound infection, significantly accelerating the healing process, and greatly alleviating the patient's pain. The overall structural design of this hemostatic patch integrates wound observation, hemostasis, healing promotion, and fixation. It is easy to operate, meets the needs of puncture site care after vascular interventional surgery, improves nursing efficiency, and reduces the risk of wound infection.
[0025] Furthermore, using a 60 ml syringe, the pouch 120 is pre-filled with 30 ml of medication. Before use, an additional 30 ml of 0.9% saline solution needs to be added to the syringe to dilute the medication. Subsequently, a total of 60 ml (including the diluted medication and saline solution) of liquid rich in wound-healing components is slowly injected into the pouch 120 through a precision syringe.
[0026] This hemostatic dressing is available in various sizes, such as standard, small, and large, to accommodate different puncture sites and wound sizes, meeting the needs of various patients.
[0027] In one embodiment, the puncture point pouch 120 hemostatic patch also includes auxiliary hook and loop fasteners 130, which are respectively disposed at opposite ends of the patch body 110.
[0028] The working principle and beneficial effects of the above technical solution are as follows: During use, the male and female fasteners of the auxiliary Velcro 130 are fastened together. The adhesive force between the hook and loop sides of the Velcro secures the bandage to the wound. When the patient moves or changes body posture, the Velcro automatically adjusts its fit according to the applied force, maintaining a stable fixation. The auxiliary Velcro 130 enhances the fixation strength of the bandage, effectively preventing it from shifting or falling off during patient activity. It is especially suitable for patients with special body types, uneven skin surfaces, or high activity levels. Simultaneously, the Velcro facilitates quick installation and removal, reducing the operation time for medical staff and patient discomfort.
[0029] In one embodiment, the inner layer 111 has a medical soft adhesive layer on the side away from the outer layer 112.
[0030] The working principle and beneficial effects of the above technical solution are as follows: The medical soft adhesive layer utilizes its adhesiveness to closely adhere to the skin around the wound, forming a physical adsorption force between the two to firmly fix the hemostatic dressing. Simultaneously, the soft adhesive layer is soft in texture, conforming to the subtle undulations and contours of the skin surface, filling the gaps between the skin and the inner layer 111, forming a good sealing effect. The medical soft adhesive layer provides reliable fixation, ensuring the hemostatic dressing remains stable during use and preventing displacement from affecting hemostasis and wound care; the hypoallergenic soft adhesive material reduces skin irritation, lowers the probability of allergic reactions, and improves patient comfort during use; furthermore, the sealing effect of the soft adhesive layer prevents external bacteria and contaminants from entering the wound, reducing the risk of infection.
[0031] In one embodiment, the injection channel 122 is provided with a positioning slot for fixing the syringe.
[0032] The working principle and beneficial effects of the above technical solution are as follows: When injecting medication into the pouch 120, the syringe head is aligned with the injection channel 122 and inserted, so that a specific part of the syringe (such as the protrusion on the syringe neck) engages in the positioning slot. The shape and size of the slot are adapted to the syringe, restricting the movement and shaking of the syringe during the injection process, ensuring that the medication is injected stably and accurately into the pouch 120. The positioning slot effectively improves the stability and accuracy of the injection operation, preventing problems such as leakage of medication and inaccurate dosage due to syringe slippage; it simplifies the injection procedure for medical staff, shortens the operation time, and reduces patient waiting time; it ensures that the medication containing wound-healing components is injected into the pouch 120 at the expected dose, thereby better exerting its effects of promoting wound healing and reducing the risk of infection.
[0033] In one embodiment, the outer layer 112 is provided with a thermosensitive color-changing strip, and the color-changing range of the strip includes white, blue and red.
[0034] The working principle and beneficial effects of the above technical solution are as follows: The temperature-sensitive color-changing strip is made of a special material that is sensitive to temperature, such as temperature-sensitive ink. When the skin temperature around the puncture point is within the normal range (36-38℃), the color-changing strip appears white; when the temperature is below 36℃, the internal molecular structure of the material changes, and the color-changing strip turns blue, indicating that there may be problems such as poor blood circulation; when the temperature is above 38℃, the color-changing strip turns red, indicating that there may be abnormal conditions such as wound infection, causing local fever.
[0035] Beneficial effects: Thermosensitive color-changing strips provide medical staff with an intuitive and convenient way to monitor wounds. Without the need for additional temperature measuring equipment, the temperature of the wound can be quickly determined by observing the color change of the strip, allowing for the timely detection of potential risks. This helps medical staff to take targeted treatment measures as early as possible, such as applying heat to areas with poor blood circulation and strengthening anti-infection treatment for suspected infected wounds, thereby improving the timeliness and effectiveness of wound care and improving patient prognosis.
[0036] In one embodiment, the observation window 121 is elliptical.
[0037] The working principle and beneficial effects of the above technical solution are as follows: The long axis of the elliptical observation window 121 can be set along the direction of the blood vessel or the long axis of the wound, which can more comprehensively cover the puncture point and surrounding tissues; at the same time, the elliptical edge is relatively smooth, and compared with angular shapes such as squares, the stress distribution is more uniform when in contact with the skin, making it less likely to cause pressure and damage to the skin. The elliptical observation window 121 increases the field of view, making it easier for medical staff to observe details such as bleeding at the puncture point and wound healing progress more clearly and completely, reducing blind spots; its smooth edge design reduces skin irritation and pressure, improves the patient's comfort when wearing the hemostatic dressing, and avoids problems such as local redness, swelling, and damage caused by friction or pressure on the skin from the edge of the observation window 121.
[0038] In one embodiment, the pouch 120 is made of a cellulose-based film.
[0039] The working principle and beneficial effects of the above technical solution are as follows: The cellulose-based membrane has good biocompatibility and will not cause a strong immune response upon contact with a wound; its internal microporous structure allows the medication within the capsule 120 to slowly seep out through osmosis, acting evenly on the wound; during use, the cellulose-based membrane gradually decomposes under the influence of the natural environment and biological enzymes, and as the wound heals, the membrane material gradually degrades into harmless substances. The biocompatibility of the cellulose-based membrane reduces the probability of adverse reactions such as wound allergies and inflammation, creating favorable conditions for wound healing; the controllable medication seepage method ensures the continuous and stable action of the medication on the wound, improving the effects of promoting wound healing, stopping bleeding, and preventing infection; the biodegradable nature of the material avoids the inconvenience of manual removal after wound healing of traditional non-degradable materials, reducing patient suffering and lowering the risk of environmental pollution.
[0040] In one embodiment, the tensile strength of the outer layer 112 is greater than 2.5 GPa.
[0041] The working principle and beneficial effects of the above technical solution are as follows: Due to its high tensile strength, the outer layer 112 can resist deformation and damage when subjected to external forces (such as skin stretching during patient activity or friction from clothing). Even under significant external forces, the outer layer 112 maintains its structural integrity, preserving the protection of the internal pouch 120 and the observation area, ensuring the normal functioning of the overall hemostatic patch.
[0042] High tensile strength ensures the durability and stability of the outer layer 112, extends the service life of the hemostatic dressing, and reduces the need for frequent replacement due to damage caused by external forces. At the same time, it can better protect the internal key structures such as the pouch 120 and the drug injection channel 122 from damage by external forces, ensuring the normal functioning of wound observation and drug injection, and providing reliable protection for puncture site care.
[0043] In one embodiment, the thickness of the inner lining 111 is 200 μm to 2 mm.
[0044] The working principle and beneficial effects of the above technical solution are as follows: When the thickness of the inner layer 111 is within the range of 200μm-2mm, it ensures that the inner layer 111 has sufficient strength and toughness, is not easily damaged or deformed during fixation, and maintains its supporting role for the medical soft adhesive layer; at the same time, it ensures that it has a certain degree of softness, can conform to the contour of the skin surface, and will not increase the patient's foreign body sensation and discomfort due to excessive thickness; at the same time, the appropriate thickness helps to control the adhesion pressure between the inner layer 111 and the skin, ensuring that the medical soft adhesive layer performs at its best. The reasonable thickness range allows the inner layer 111 to achieve a good balance in terms of fixation, comfort, and functionality, improving the overall performance of the hemostatic dressing; it can effectively fix the hemostatic dressing and prevent its displacement, while also improving the patient's comfort when wearing it, reducing problems such as poor fixation and skin indentation caused by the inner layer 111 being too thick or too thin, and helping patients to better accept and cooperate with postoperative care.
[0045] In one embodiment, a protective film 113 is also provided on the outer layer 112.
[0046] The working principle and beneficial effects of the above technical solution are as follows: When the bandage is not in use, the protective film 113 covers the surface of the outer layer 112, isolating the outer layer 112 from the external environment and preventing dust, bacteria, and other contaminants from adhering to the outer layer 112. When the bandage needs to be used, the protective film 113 is torn off, exposing the outer layer 112, and the bandage can then be applied to the wound. The protective film 113 effectively maintains the cleanliness and hygiene of the outer layer 112, preventing it from being contaminated during storage and transportation, thereby preventing contaminants from contacting the wound during use and reducing the risk of wound infection. At the same time, the presence of the protective film 113 also protects the structure and performance of the outer layer 112 surface from external factors, ensuring that the bandage functions normally during use and providing patients with a safe and reliable nursing product.
[0047] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A puncture point pouch (120) hemostatic patch, characterized in that, The puncture point pouch (120) hemostatic dressing includes: The adhesive body (110) includes an inner adhesive layer (111) and an outer adhesive layer (112). The outer adhesive layer (112) has an observation area, and the inner adhesive layer (111) is disposed along the edge of the observation area. The inner adhesive layer (111) is used to adhere to the area around the wound. A pouch (120) is provided in the observation area. The pouch (120) has an observation window (121) on its surface. The observation window (121) is transparent. The pouch (120) also has an injection channel (122) on its surface. The medicine in the pouch (120) can seep out of the pouch (120) and act on the wound.
2. The puncture point pouch (120) hemostatic patch according to claim 1, characterized in that, The puncture point pouch (120) hemostatic patch also includes auxiliary Velcro (130), which are respectively disposed at opposite ends of the patch body (110).
3. The puncture point pouch (120) hemostatic patch according to claim 1, characterized in that, The inner layer (111) has a medical soft adhesive layer on the side away from the outer layer (112).
4. The puncture point pouch (120) hemostatic patch according to claim 1, characterized in that, The injection channel (122) is provided with a positioning slot, which is used to fix the syringe.
5. The puncture point pouch (120) hemostatic patch according to claim 1, characterized in that, The outer layer (112) is provided with a temperature-sensitive color-changing strip, and the color-changing range of the color-changing strip includes white, blue and red.
6. The puncture point pouch (120) hemostatic patch according to claim 1, characterized in that, The observation window (121) is elliptical.
7. The puncture point pouch (120) hemostatic patch according to claim 1, characterized in that, The bag (120) is made of cellulose-based film.
8. The puncture point pouch (120) hemostatic patch according to claim 1, characterized in that, The tensile strength of the outer layer (112) is greater than 2.5 GPa.
9. The puncture point pouch (120) hemostatic patch according to claim 1, characterized in that, The thickness of the inner lining layer (111) is 200 μm to 2 mm.
10. The puncture point pouch (120) hemostatic patch according to any one of claims 1-8, characterized in that, A protective film (113) is also provided on the outside of the outer layer (112).