A compression dressing for hemostasis

Abstract

The application relates to the field of medical devices, in particular to a pressing patch for hemostasis, which comprises a base pad, a bottom of the base pad is provided with a sticking unit, a top of the base pad is provided with a pressing unit, the pressing unit comprises a fixing pad, an expansion bag and a liquid storage bag, the expansion bag and the liquid storage bag are arranged at the bottom of the fixing pad, the liquid storage bag is located in an expansion cavity, the inside of the expansion bag stores acid particles, the inside of the liquid storage bag stores alkaline liquid, and the fixing pad and the expansion bag are detachably connected to the top of the base pad; after a patient wears the pressing patch, the liquid storage bag is pressed through the fixing pad, after the liquid storage bag is pressed and broken, the alkaline liquid and the acid particles are contacted, an acid-base reaction forms a large amount of carbon dioxide, the expansion bag is expanded, the wound of the patient is pressed, the weak and powerless crowd such as the old people does not need medical staff to press and can also achieve effective fixing effect, and the medical staff can conveniently perform relevant medical operations on the remaining patients.

Description

Technical Field

[0001] This application relates to the field of clinical nursing technology, and in particular to a hemostatic pressure dressing. Background Technology

[0002] In clinical nursing, after blood is drawn or intravenous infusion is performed, medical cotton swabs are typically used to apply pressure to stop the bleeding, or adhesive bandages are applied for further pressure to ensure hemostasis and prevent complications. During blood drawing or infusion, the needle punctures the skin and blood vessel walls, creating a wound. After the needle is removed, these wounds require time to heal. To ensure that blood no longer flows from the puncture site, pressure is applied to the area with cotton swabs or bandages. This pressure helps platelets aggregate and adhere, forming microthrombi, thus achieving complete hemostasis. If pressure is not applied, or if the pressure is insufficient or not applied firmly enough, blood may continue to flow from the puncture site, causing bruising, swelling, or even a hematoma. Therefore, applying pressure to the wound after blood drawing or infusion is crucial.

[0003] In clinical practice, it has been found that blood draws or intravenous infusions are routine medical procedures that affect almost the entire population. Among these populations are the elderly and other individuals who are physically weak and unable to apply pressure. It is difficult for these individuals to apply effective pressure to wounds. To avoid bruising, swelling, or even hematoma, medical staff often need to assist with pressure application. However, medical staff cannot perform other procedures while applying pressure, which leads to some patients being unable to undergo related medical procedures, resulting in a waste of medical resources and potentially exacerbating the doctor-patient relationship. Utility Model Content

[0004] This application provides a hemostatic pressure dressing to address the technical problem that the inventors have recognized in clinical practice that blood draws or intravenous infusions are routine medical procedures, covering almost the entire patient population, including the elderly and other individuals with weak strength who are unable to apply pressure effectively. These individuals often require assistance from medical staff to apply pressure to prevent bruising, swelling, or even hematoma. However, medical staff cannot perform other operations while applying pressure, resulting in some patients being unable to undergo related medical procedures, leading to a waste of medical resources and potentially exacerbating the doctor-patient relationship.

[0005] This application provides a hemostatic pressure dressing, including a base pad, an adhesive unit at the bottom of the base pad, and a pressure unit at the top of the base pad. The pressure unit includes a fixing pad, an expansion bag, and a reservoir bag. The expansion bag and the reservoir bag are both located at the bottom of the fixing pad, and the fixing pad and the expansion bag restrict an expansion cavity. The reservoir bag is located within the expansion cavity. The expansion bag contains acidic particles, and the reservoir bag contains an alkaline liquid. Both the fixing pad and the expansion bag are detachably connected to the top of the base pad.

[0006] In any of the above technical solutions, the adhesive unit further includes a foam sponge dressing, a hydrocolloid dressing, and a peelable film. The foam sponge dressing and the hydrocolloid dressing are both disposed at the bottom of the base pad, and the hydrocolloid dressing is located outside the foam sponge dressing. The peelable film is disposed at the bottom of the foam sponge dressing and the hydrocolloid dressing.

[0007] In any of the above technical solutions, the back of the tearable film is provided with an extension section, and the extension section and the tearable film adopt an integral molding structure.

[0008] In any of the above technical solutions, a reminder pad is further provided inside the fixing pad.

[0009] In any of the above technical solutions, the inner wall of the expansion cavity is further coated with an acid and alkali resistant coating.

[0010] In any of the above technical solutions, the number of the indicator pads is further three, one of which is located above the liquid storage bag, and two of the indicator pads are symmetrically arranged with the liquid storage bag as the center.

[0011] In any of the above technical solutions, the liquid storage bag is further made of any one of polyvinyl chloride, polypropylene, and polyvinylidene fluoride.

[0012] In any of the above technical solutions, the material of the expansion bag is selected from any one of rubber, latex, and silicone.

[0013] In any of the above technical solutions, the fixing pad is further detachably connected to the top of the base pad by Velcro, snaps, adhesive, or snap fasteners.

[0014] In any of the above technical solutions, the expansion bag is further detachably connected to the top of the base pad by Velcro, snaps, adhesive, or snap fasteners.

[0015] The main benefits of this application are:

[0016] After the patient puts it on, they press the reservoir bag with the fixation pad. When the reservoir bag breaks under pressure, the alkaline liquid and acidic particles come into contact, and the acid-base reaction forms a large amount of carbon dioxide, which in turn causes the expansion bag to expand. This squeezes the patient's wound, freeing the patient's limbs and improving the patient's experience. For the elderly and other people who are weak and unable to press, it can achieve an effective fixation effect without the need for medical staff to press, allowing medical staff to perform relevant medical procedures on other patients.

[0017] It should be understood that the foregoing general description and the following detailed description are for illustrative purposes only and do not necessarily limit the scope of this application. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this application. Furthermore, the specification and drawings serve to explain the principles of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram (front view) of the pressure application structure according to an embodiment of this application.

[0020] Figure 2 This is a schematic diagram (front sectional view) of the pressing unit structure according to an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the pressure application structure in the embodiments of this application. Figure 1 (Top view);

[0022] Figure 4 This is a schematic diagram of the pressure application structure in the embodiments of this application. Figure 2 (Top view).

[0023] icon:

[0024] 100-Base pad; 101-Fixing pad; 102-Expansion bag; 103-Reservoir bag; 104-Expansion chamber; 105-Acidic granules; 106-Alkaline liquid; 107-Foam sponge dressing; 108-Hydrocolloid dressing; 109-Tearable film; 110-Extension section; 111-Indication pad. Detailed Implementation

[0025] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0026] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Please see Figure 1 and Figure 2 In one or more embodiments, a hemostatic pressure dressing is provided, including a base pad 100, an adhesive unit at the bottom of the base pad 100, and a pressing unit at the top of the base pad 100. The pressing unit includes a fixing pad 101, an expansion bag 102, and a reservoir bag 103. The expansion bag 102 and the reservoir bag 103 are both disposed at the bottom of the fixing pad 101. The fixing pad 101 and the expansion bag 102 restrict an expansion cavity 104. The reservoir bag 103 is located inside the expansion cavity 104. The expansion bag 102 stores acidic particles 105, and the reservoir bag 103 stores alkaline liquid 106. The fixing pad 101 and the expansion bag 102 are detachably connected to the top of the base pad 100.

[0030] In this embodiment, the application is fixed to the patient's wound using an adhesive unit. Then, the fixing pad 101 is pressed to compress the reservoir bag 103 until it ruptures under pressure, allowing the acidic particles 105 and alkaline liquid 106 to come into contact. The acid-base reaction generates a large amount of carbon dioxide gas, causing the expansion bag 102 to expand. The fixing pad 101 restricts the expansion bag 102. Once the expansion bag 102 has expanded to a certain extent and can no longer expand, pressure is applied to the wound. This allows for effective fixation even for elderly individuals or those with weak strength who cannot apply pressure without medical personnel. Other individuals can achieve wound fixation without the need for one hand, freeing up their hands. The patient's limbs are freed up for other procedures, improving the patient experience and freeing up medical staff to perform related medical procedures on other patients, thus reducing patient waiting time and easing doctor-patient tensions. In this application, the acidic granules 105 can be made of citric acid, and the alkaline liquid 106 can be made of baking soda. The specific materials and dosages of the acidic granules 105 and alkaline liquid 106 can be adjusted according to actual conditions. Furthermore, this application can be scaled up or down proportionally to meet the pressure requirements of different blood drawing or infusion sites, expanding its applicability to various parts of the body for stopping bleeding from skin injuries. For some patients, such as those who have not undergone blood drawing or infusion treatments, the procedure can be completed in the shortest possible time, protecting patient privacy.

[0031] Please see Figure 1 , Figure 3 and Figure 4 In some embodiments, the adhesive unit includes a foam sponge dressing 107, a hydrocolloid dressing 108, and a tearable film 109. Both the foam sponge dressing 107 and the hydrocolloid dressing 108 are disposed at the bottom of the base pad 100, with the hydrocolloid dressing 108 located outside the foam sponge dressing 107. The tearable film 109 is disposed at the bottom of the foam sponge dressing 107 and the hydrocolloid dressing 108. An extension section 110 is provided on the back of the tearable film 109. The extension section 110 and the tearable film 109 adopt an integrally molded structure.

[0032] In this embodiment, the foam sponge dressing 107 is elastic, absorbent, and compressible, and it directly contacts the patient's wound. The hydrocolloid dressing 108 isolates the patient from external influences. Simultaneously, the dressing's gel properties allow for inward tension, increasing pressure. The hydrocolloid dressing 108 ensures the base pad 100 is effectively and stably fixed to the patient's wound surface. The adhesiveness of the hydrocolloid dressing 108 must be compatible with the material and dosage of the acidic particles 105 and the alkaline liquid 106, ensuring that the base pad 100 remains stably fixed to the patient's skin surface under the action of the hydrocolloid dressing 108 after the expansion bag 102 expands, without any lifting of the edges. The tearable film 109 protects the foam sponge dressing 107 and hydrocolloid dressing 108 from external interference when not in use, while the extension section 110 facilitates the removal of the tearable film 109.

[0033] Please see Figure 1 and Figure 2 In some embodiments, a warning pad 111 is provided inside the fixing pad 101, and the inner wall of the expansion cavity 104 is coated with an acid and alkali resistant coating. There are three warning pads 111, one of which is located above the liquid storage bag 103, and two of which are symmetrically arranged with the liquid storage bag 103 as the center.

[0034] In this embodiment, when the indicator pad 111 above the liquid storage bag 103 is pressed, the liquid storage bag 103 will shift towards the base pad 100 until it comes into contact with the surface of the expansion bag 102 and is squeezed, thereby causing the liquid storage bag 103 to break. When the indicator pad 111, which is symmetrically arranged around the liquid storage bag 103, is pressed, the fixing pad 101 and the expansion bag 102 will squeeze towards the liquid storage bag 103, thereby compressing the liquid storage bag 103 and causing it to break. This achieves two ways of breaking the liquid storage bag 103 and reminds the operator of the pressing position to avoid not being able to find the actual position of the liquid storage bag 103, which would prolong the operation time. The acid and alkali resistant coating protects the expansion bag 102 and the fixing pad 101 to prevent damage and leakage caused by corrosion of the fixing pad 101 and the expansion bag 102 by acids and alkalis.

[0035] Please see Figure 1 and Figure 2 In some embodiments, the liquid storage bag 103 is made of any one of polyvinyl chloride, polypropylene, and polyvinylidene fluoride. In this application, polyvinyl chloride is preferred. The expansion bag 102 is made of any one of rubber, latex, and silicone. In this application, rubber is preferred. The fixing pad 101 is detachably connected to the top of the base pad 100 by Velcro, snaps, adhesive, or snap fasteners. In this application, Velcro is preferred. The expansion bag 102 is detachably connected to the top of the base pad 100 by Velcro, snaps, adhesive, or snap fasteners. In this application, Velcro is preferred.

[0036] In this embodiment, the materials of the liquid storage bag 103 and the expansion bag 102 in this application include, but are not limited to, the materials described above. The liquid storage bag 103 must have the function of breaking after compression to ensure contact between the acidic particles 105 and the alkaline liquid 106. The expansion bag 102 has a deformation effect. At the same time, the gas generated by the contact between the acidic particles 105 and the alkaline liquid 106 will not cause the expansion bag 102 to explode and break. Therefore, the selection and amount of acidic particles 105 and alkaline liquid 106, as well as the actual material and thickness of the expansion bag 102, are selected and adjusted according to the actual situation. The connection between the fixing pad 101 and the base pad 100 includes, but is not limited to, the structure described above. The connection between the expansion bag 102 and the base pad 100 includes, but is not limited to, the structure described above. It is necessary to ensure that after the fixing pad 101, the expansion bag 102 and the base pad 100 are fixed, they will not be misaligned or even separated due to the expansion of the expansion bag 102, and the expansion bag 102 will compress the wound after expansion.

[0037] Specifically, the working principle of the hemostatic pressure dressing provided in this application is as follows:

[0038] First, the tearable film 109 is peeled off through the extension section 110, and the foam sponge dressing 107 is aligned with the patient's wound and applied. The base pad 100 is fixed by the adhesive action of the hydrocolloid dressing 108.

[0039] Then, the finger presses the indicator pad 111. When the indicator pad 111 above the liquid storage bag 103 is pressed, the liquid storage bag 103 will move towards the base pad 100 until it comes into contact with the surface of the expansion bag 102 and is squeezed, thereby causing the liquid storage bag 103 to break. When the indicator pad 111, which is symmetrically arranged with the liquid storage bag 103 as the center, is pressed, the fixing pad 101 and the expansion bag 102 will squeeze towards the liquid storage bag 103, thereby compressing the liquid storage bag 103 to break.

[0040] When the reservoir bag 103 is damaged, the alkaline liquid 106 comes into contact with the acidic particles 105. The acid and alkali react to produce a large amount of carbon dioxide gas, which causes the expansion bag 102 to expand. The expansion bag 102 is restricted by the fixing pad 101. When the expansion bag 102 can no longer expand after it has expanded to a certain extent, it can apply pressure to the wound. For elderly people and other people who are weak and unable to press, the wound can be effectively fixed without the need for medical staff to apply pressure. Other people can stop pressing the wound with one hand, freeing up the patient's limbs to perform other operations, improving the patient experience. At the same time, it frees up medical staff to perform related medical operations on other patients, reducing patient waiting time and easing the doctor-patient relationship.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A hemostatic pressure dressing, characterized in that, The device includes a base pad, with an adhesive unit at the bottom and a pressing unit at the top. The pressing unit includes a fixing pad, an expansion bag, and a liquid storage bag. The expansion bag and the liquid storage bag are both located at the bottom of the fixing pad, which restricts an expansion cavity. The liquid storage bag is located inside the expansion cavity. The expansion bag contains acidic particles, and the liquid storage bag contains alkaline liquid. Both the fixing pad and the expansion bag are detachably connected to the top of the base pad.

2. The hemostatic pressure dressing according to claim 1, characterized in that, The adhesive unit includes a foam sponge dressing, a hydrocolloid dressing, and a peelable film. The foam sponge dressing and the hydrocolloid dressing are both disposed at the bottom of the base pad, and the hydrocolloid dressing is located outside the foam sponge dressing. The peelable film is disposed at the bottom of the foam sponge dressing and the hydrocolloid dressing.

3. The hemostatic pressure dressing according to claim 2, characterized in that, The back of the tearable film is provided with an extension section, and the extension section and the tearable film are integrally formed.

4. The hemostatic pressure dressing according to claim 1, characterized in that, A reminder pad is provided inside the fixing pad.

5. A hemostatic pressure dressing according to claim 1, characterized in that, The inner wall of the expansion chamber is coated with an acid and alkali resistant coating.

6. A hemostatic pressure dressing according to claim 4, characterized in that, The number of indicator pads is three, with one indicator pad located above the liquid storage bag, and two indicator pads arranged symmetrically with the liquid storage bag as the center.

7. The hemostatic pressure dressing according to claim 1, characterized in that, The liquid storage bag is made of any one of polyvinyl chloride, polypropylene, and polyvinylidene fluoride.

8. The hemostatic pressure dressing according to claim 1, characterized in that, The expansion bag can be made of any one of rubber, latex, or silicone.

9. A hemostatic pressure dressing according to claim 1, characterized in that, The fixing pad is detachably connected to the top of the base pad by Velcro, snaps, adhesive, or snap fasteners.

10. A hemostatic pressure dressing according to claim 1, characterized in that, The expansion bag is detachably connected to the top of the base pad via Velcro, snaps, adhesive, or snap fasteners.

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