Chemical inflatable tourniquet used after vein blood sampling

Abstract

The utility model relates to a chemical inflation tourniquet used after vein blood sampling. The chemical inflation tourniquet comprises an elastic bandage, the chemical inflation structure part is arranged on the elastic bandage and comprises a hemostatic absorbent cotton layer and an inflatable bag body which are sequentially arranged from the skin attaching layer to the outside, and the inflatable bag body is internally provided with a first component layer and a second component layer which react to generate gas after being in contact; the first component layer and the second component layer are separated by a destructible thin film layer, and the destructible part on the thin film layer is also connected with an inflation lead extending out of the inflatable bag body. Compared with the prior art, the device can replace the situation that a patient presses a puncture point for 5 minutes with three fingers after blood sampling, and also plays a role in stopping bleeding at the damaged part of the blood vessel.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary medical devices, and relates to a chemical inflatable tourniquet for use after intravenous blood collection. Background Technique

[0002] After the end of intravenous blood collection, it is required that the patient press the puncture point for 5 minutes until the bleeding stops. During the pressing period, it is not advisable to bend the elbow or massage, as this will increase the additional pressure and lead to an increased risk of bleeding, congestion, pain and other conditions. In clinical practice, patients often perform poorly in terms of the pressing time and location. For the intravenous pressure tourniquet disclosed in CN202020862313.9, although a hemostatic mechanism is also provided on the tourniquet, the cotton ball is fixed on the hemostatic mechanism, and the puncture site is compressed through the hemostatic mechanism to stop bleeding. However, the controllability of the pressing force of this tourniquet structure is poor, and at the same time, it does not have the function of timed pressing. Content of the Utility Model

[0003] The purpose of the utility model is to provide a chemical inflatable tourniquet for use after intravenous blood collection to replace the patient's "pressing the puncture point with three fingers for 5 minutes" after blood collection, and also play the role of ensuring hemostasis at the blood vessel damage site.

[0004] The purpose of the utility model can be realized by the following technical solutions:

[0005] A chemical inflatable tourniquet for use after intravenous blood collection, comprising:

[0006] An elastic bandage;

[0007] And a chemical inflatable structure part arranged on the elastic bandage, which includes a hemostatic cotton layer and an inflatable airbag body arranged in sequence from the layer close to the skin to the outside. The inflatable airbag body contains a first component layer and a second component layer that react to generate gas after contact. The first component layer and the second component layer are separated by a breakable thin film layer, and a breakable part on the thin film layer is also connected to an inflatable lead wire extending out of the inflatable airbag body.

[0008] Further, both ends of the elastic bandage are provided with bandage adhesive areas that can contact and fix each other.

[0009] Furthermore, the bandage adhesive area is provided with Velcro.

[0010] Further, a heat insulation layer is also provided between the hemostatic cotton layer and the inflatable airbag body.

[0011] Furthermore, the heat insulation layer is a PE layer.

[0012] Further, when the first component layer and the second component layer do not contact, the inflatable airbag body is in a deflated state.

[0013] Further, a hole for the inflation lead to pass through is provided at the bottom of the inflatable airbag body.

[0014] Furthermore, the diameter of the hole is not greater than the diameter of the inflation lead.

[0015] Further, a pull ring is provided at the end of the inflation lead.

[0016] Further, the setting position of the chemical inflation structure part on the elastic band satisfies that when the elastic band is bound on the patient's arm after venipuncture, the hemostatic cotton layer closely adheres to and presses on the puncture site on the patient's arm.

[0017] Compared with the prior art, the present utility model has the following advantages:

[0018] (1) By applying this tourniquet, it can replace the "three-finger pressing on the puncture point for 5 minutes" after the patient's blood collection, and also play the role of ensuring hemostasis at the damaged blood vessel.

[0019] (2) It can prevent displacement, perform targeted pressing, ensure cleanliness and hygiene during the pressing process, and can also prompt the pressing duration laterally. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the chemical inflation tourniquet of the present utility model before inflation;

[0021] Figure 2 is a schematic diagram of the chemical inflation tourniquet after inflation;

[0022] Figure 3 is a schematic diagram of the chemical inflation tourniquet after being unfolded;

[0023] Explanation of the marks in the figure:

[0024] 1 - elastic band;

[0025] 2 - chemical inflation structure part, 21 - inflatable airbag body, 22 - hemostatic cotton layer, 23 - heat insulation layer, 24 - film layer;

[0026] 3 - band adhesive area;

[0027] 4 - inflation lead. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and gives the detailed implementation manners and specific operation processes, but the protection scope of the present utility model is not limited to the following embodiments.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] In the following embodiments or examples, if there is no special description of functional components or structures, it means that they are all conventional components or conventional structures adopted by those skilled in the art to achieve the corresponding functions.

[0032] In order to replace the conventional operation of "pressing the puncture point with three fingers for 5 minutes" (the 5 minutes here is a virtual number) after the patient's blood collection and ensure hemostasis at the damaged blood vessel, the present utility model provides a chemical inflatable tourniquet for post-venous blood collection, and its structure can be seen Figures 1 to 3 as shown, including:

[0033] Elastic band 1;

[0034] And a chemical inflatable structure part 2 arranged on the elastic band 1, which includes a hemostatic cotton layer 22 and an inflatable airbag body 21 arranged in sequence from the direction close to the skin layer to the outside. The inflatable airbag body 21 is filled with a first component layer and a second component layer that react to generate gas after contact. The first component layer and the second component layer are separated by a breakable thin film layer 24. A gas inflation lead wire 4 extending out of the inflatable airbag body 21 is also connected to the breakable part on the thin film layer 24.

[0035] It should be pointed out that the first component and the second component used in the first component layer and the second component layer respectively can be conventional chemical agents that can generate gas after contacting each other in the art, and can be solid agents, liquid agents, or a mixture of the two. The specific types of the first component and the second component here do not belong to the innovation of the utility model and will not be repeated here. Exemplarily, the first component can be a solid hydrogen peroxide complex and / or a solid peroxide, specifically sodium percarbonate (2Na2CO3·3H2O2, etc.), and the second component can be a solid metal oxide catalyst and a small amount of water. In this way, after the first component and the second component come into contact, oxygen can be quickly generated, thereby expanding the originally deflated inflatable bladder 21, and then driving the hemostatic cotton layer 22 to compress the damaged part of the blood vessel and play a hemostatic role.

[0036] In addition, the "layer" in the first component layer and the second component layer only means that the first component and the second component are two entities that do not contact each other before the reaction and inflation, and their overall shape can be block-shaped, layered, or other shapes, and it is not limited to that the two components must be arranged in a "layered" form.

[0037] In some specific embodiments, the two ends of the elastic band 1 are provided with band adhesive areas 3 that can contact and fix each other. By setting the band adhesive areas 3, the tightness of the elastic band 1 can be effectively adjusted while fixing the elastic band 1. In a more specific embodiment, the band adhesive areas 3 are provided with Velcro.

[0038] In some specific embodiments, a heat insulating layer 23 is provided between the hemostatic cotton wool layer 22 and the inflatable bladder 21, and the heat insulating layer 23 can effectively isolate the heat released by the reaction of the first component and the second component to avoid scalding the skin. In a more specific embodiment, the heat insulating layer 23 is a PE layer.

[0039] In some specific embodiments, when the first component layer and the second component layer are not in contact, the inflatable bladder 21 is in a deflated state. At this time, the structural layers attached to the surface of the inflatable bladder 21, such as the hemostatic cotton layer 22, are in a similar folded state, and after the inflatable bladder 21 is inflated, the hemostatic cotton layer 22 and the like are also unfolded accordingly.

[0040] In some specific embodiments, the bottom of the inflatable bladder 21 is further provided with a hole for the inflation wire 4 to pass through. In a more specific embodiment, the diameter of the hole is not greater than the diameter of the inflation wire 4. Preferably, the inflation wire 4 is a cotton thread.

[0041] Here, on the one hand, the setting of the holes can facilitate the pulling of the inflation lead 4, thereby pulling the breakable part on the film layer 24 to make it broken. In this way, the first component and the second component separated by the film layer 24 will come into contact with each other through the opening formed after the break. At the same time, since there is generally no complete seal between the holes and the inflation lead 4 and there is a certain gap, there will be a certain air leakage effect. In this way, when the gas generated by the reaction expands the inflatable airbag 21, it can also prevent the pressure applied from being too large. In addition, after the first component and the second component completely react, over time, the continuous air leakage will cause the pressure applied by the inflated and expanded inflatable airbag 21 to decrease, thereby indirectly indicating the time of compression hemostasis.

[0042] In some specific embodiments, a pull ring is further provided at the end of the inflation lead 4. On the one hand, it can facilitate the pulling of the inflation lead 4, and on the other hand, it can also prevent the inflation lead 4 from retracting into the inflatable airbag 21.

[0043] In some specific embodiments, the setting position of the chemical inflation structure part 2 on the elastic band 1 satisfies that when the elastic band 1 is bound to the patient's arm after venipuncture, the hemostatic cotton layer 22 closely adheres to and presses the puncture site on the patient's arm.

[0044] In some specific embodiments, the breakable part on the film layer 24 can adopt a commonly used easily tearable structure in the art, and its specific structure does not belong to the innovative protection point of the present utility model. Exemplarily, an opening is provided on the film layer 24, and then an easily tearable film is covered at the opening. Then, the starting end of the torn easily tearable film is connected to the inflation lead 4.

[0045] The above embodiments can be implemented separately, or any two or more of them can be combined.

[0046] The above embodiments will be described in more detail below with specific examples.

[0047] Example 1:

[0048] In order to replace the conventional operation of "pressing the puncture point with three fingers for 5 minutes" (the 5 minutes here is a virtual number) after the patient's blood collection and ensure hemostasis at the blood vessel damage site, this embodiment provides a chemical inflation tourniquet for after venous blood collection, and its structure can be seen Figures 1 to 3 as shown, including:

[0049] Elastic band 1;

[0050] and a chemical inflation structure part 2 arranged on the elastic bandage 1, which includes a hemostatic cotton layer 22 and an inflatable airbag body 21 arranged in sequence from the skin - close layer to the outer direction. The inflatable airbag body 21 contains a first component layer and a second component layer that react to generate gas upon contact. The first component layer and the second component layer are separated by a breakable thin film layer 24. A gas - filling lead wire 4 extending out of the inflatable airbag body 21 is also connected to the breakable part on the thin film layer 24.

[0051] Please refer to again Figure 3 As shown in etc., both ends of the elastic bandage 1 are provided with bandage adhesive areas 3 that can be in contact and fixed with each other. Through the setting of the bandage adhesive areas 3, while fixing the elastic bandage 1, its tightness can be effectively adjusted. In a more specific implementation manner, the bandage adhesive areas 3 are set with Velcro.

[0052] Please refer to again Figure 1 As shown in etc., a heat - insulating layer 23 is also provided between the hemostatic cotton layer 22 and the inflatable airbag body 21. Through the heat - insulating layer 23, the heat released by the reaction of the first component and the second component can be effectively isolated, avoiding scalding the skin. In a more specific implementation manner, the heat - insulating layer 23 is a PE layer.

[0053] Please refer to again Figure 1 As shown in etc., when the first component layer and the second component layer are not in contact, the inflatable airbag body 21 is in a deflated state. In addition, a hole for the gas - filling lead wire 4 to pass through is provided at the bottom of the inflatable airbag body 21. In a more specific implementation manner, the diameter of the hole is not greater than the diameter of the gas - filling lead wire 4. Preferably, the gas - filling lead wire 4 is a cotton thread. The setting position of the chemical inflation structure part 2 on the elastic bandage 1 satisfies that when the elastic bandage 1 is bound on the arm of a patient after venous puncture, the hemostatic cotton layer 22 closely adheres to and presses the puncture site on the patient's arm.

[0054] During specific operation, the elastic bandage 1 in the tourniquet of this embodiment has a certain elasticity and adhesiveness for fixation. After venous puncture is completed, it helps to fix well at the puncture site of the patient with an appropriate force. Subsequently, when the gas - filling lead wire 4 pulls and breaks the breakable part on the thin film layer 24, the first component layer and the second component layer come into contact and react to generate gas, so that the inflatable airbag body 21 expands, and then pushes the hemostatic cotton layer 22 to compress the puncture site for hemostasis. As time goes by, the internal gas will leak out, which can indirectly prompt the time of compression hemostasis. When the inflatable airbag body 21 deflates, it means that the pressing process is completed, and the patient only needs to remove this tourniquet.

[0055] Embodiment 2:

[0056] On the basis of Embodiment 1, the following design is further adopted in this embodiment: a pull ring is further provided at the end of the inflatable lead 4. On the one hand, it can facilitate pulling the inflatable lead 4. On the other hand, it can also prevent the inflatable lead 4 from retracting into the inflatable airbag body 21.

[0057] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present utility model according to the disclosure of the present utility model should be within the protection scope of the present utility model.

Claims

1. A chemical inflatable tourniquet for use after venous blood sampling, characterized in that: include: Elastic bandage; And a chemical inflation structure arranged on the elastic bandage, which includes a hemostatic cotton wool layer and an inflatable sac arranged in sequence from the skin-closed layer to the outside, the inflatable sac contains a first component layer and a second component layer that react upon contact to generate gas, the first component layer and the second component layer are separated by a destructible film layer, and the destructible part on the film layer is also connected to an inflation lead extending out of the inflatable sac.

2. A chemical inflatable tourniquet for use after venous blood sampling according to claim 1, characterized in that: Both ends of the elastic band are provided with band adhesive areas which can contact and fix with each other.

3. A chemical inflatable tourniquet for use after venous blood sampling according to claim 2, characterized in that: The adhesive area of ​​the strap is provided with Velcro.

4. A chemical inflatable tourniquet for use after venous blood sampling according to claim 1, characterized in that: A heat insulation layer is also provided between the hemostatic cotton wool layer and the inflatable sac.

5. A chemical inflatable tourniquet for use after venous blood sampling according to claim 4, characterized in that: The heat insulation layer is a PE layer.

6. A chemical inflatable tourniquet for use after venous blood sampling according to claim 1, characterized in that: When the first component layer and the second component layer are not in contact, the inflatable bladder is in a deflated state.

7. A chemical inflatable tourniquet for use after venous blood sampling according to claim 1, characterized in that: The bottom of the inflatable bag is also provided with a hole for the inflation lead to pass through.

8. A chemical inflatable tourniquet for use after venous blood sampling according to claim 7, characterized in that: The diameter of the hole is not greater than the diameter of the inflation lead.

9. A chemical inflatable tourniquet for use after venous blood sampling according to claim 1, characterized in that: A pull ring is also provided at the end of the inflation lead.

10. A chemical inflatable tourniquet for use after venous blood sampling according to claim 1, characterized in that: The chemical inflation structure is disposed at a position of the elastic bandage such that when the elastic bandage is bound to the arm of a patient after venipuncture, the hemostatic cotton wool layer is tightly attached to and presses the puncture site on the patient's arm.

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