Pressing-free tourniquet used after venipuncture

Abstract

The utility model relates to a pressing-free tourniquet after venipuncture, belongs to the technical field of medical instruments, and solves the problem that the wound of a patient after venipuncture is difficult to heal and needs to be manually pressed for hemostasis for a long time in the prior art. The pressing-free tourniquet comprises a strip-shaped bridle, a pressurizing assembly, a first air pipe and a second air pipe, the strip-shaped bridle is bound on an arm of a patient; the pressurizing assembly is arranged in the middle of the strip-shaped bridle; the pressurizing assembly is sequentially provided with a non-woven fabric, a pressurizing air bag, a waterproof layer and a prothrombin layer from outside to inside; the first air pipe and the second air pipe are simultaneously communicated with the pressurizing air bag and are used for inflating or deflating the pressurizing air bag; and the prothrombin layer is used for storing a prothrombin medicament. The pressing-free tourniquet can replace manual work to pressurize the bleeding position of a patient, and the pressurizing pressure can be adjusted while the hemostasis function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a tourniquet that does not require pressure after intravenous puncture. Background Technology

[0002] Venipuncture is a commonly used medical treatment method, suitable for patients who need long-term infusion but whose peripheral veins are difficult to puncture due to hardening or collapse, patients who need total parenteral nutrition, and for emergency treatment of critically ill patients and patients with difficult blood collection.

[0003] However, for patients with coagulation disorders, the puncture wound is difficult to heal on its own after venipuncture, and the prolonged failure of the wound to heal can lead to excessive bleeding. Generally, it is necessary to apply pressure to the wound for a long time and apply prothrombin to achieve healing. Currently, the application of pressure to the wound is usually done manually. On the one hand, it is difficult to maintain the pressure intensity and pressure state for a long time. On the other hand, it may also lead to coagulation difficulties or even the formation of local ecchymosis and hematoma due to insufficient pressure.

[0004] Therefore, for cases where prolonged pressure is required to stop bleeding after venipuncture, there is a need to provide a tourniquet that eliminates the need for prolonged manual pressure to achieve hemostasis of the patient's wound. Utility Model Content

[0005] Based on the above analysis, the present invention aims to provide a tourniquet that does not require pressure application after venipuncture, in order to solve the problem that existing venipuncture wounds are difficult to heal and require long-term manual pressure for hemostasis.

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

[0007] A tourniquet for intravenous puncture without pressure application includes: a strip-shaped band, a pressure assembly, a first trachea, and a second trachea; the strip-shaped band is wrapped around the patient's arm; the pressure assembly is disposed in the middle of the strip-shaped band;

[0008] The pressurization assembly consists of, from the outside in, a non-woven fabric, a pressurization airbag, a waterproof layer, and a prothrombin layer. A first trachea and a second trachea are simultaneously connected to the pressurization airbag. The first trachea inflates the pressurization airbag, which then applies pressure to the venous puncture site in the patient's arm. The second trachea deflates the inflated pressurization airbag. The prothrombin layer stores the prothrombin agent.

[0009] Furthermore, the two ends of the strip-shaped strap are provided with fixing components, which can connect the two ends of the strip-shaped strap into one piece; the non-woven fabric is fixedly connected to the strip-shaped strap or is an integral structure.

[0010] Furthermore, the pressurized airbag is a rectangular airbag, a circular airbag, an elliptical airbag, or an annular airbag.

[0011] Furthermore, the end of the first air tube is an open end, which can be connected to an inflation device.

[0012] Furthermore, the first air tube is equipped with a one-way valve, which allows gas to flow from the first air tube into the pressurization bladder of the pressurization assembly, but prevents it from flowing out in the opposite direction.

[0013] Furthermore, a sealing cap is detachably installed at the end of the second trachea.

[0014] Furthermore, the prothrombin layer is a sponge material or a colloidal material adsorbed with prothrombin.

[0015] Furthermore, when the prothrombin layer is made of sponge material, the prothrombin agent is adsorbed through the sponge's own adsorption capacity.

[0016] Furthermore, when the prothrombin layer is a colloidal material, its surface is processed with drug storage grooves; the prothrombin agent is filled in the drug storage grooves for storage.

[0017] Furthermore, the medicine storage groove is grid-shaped; or, the medicine storage groove is honeycomb-shaped.

[0018] The technical solution of this utility model can achieve at least one of the following effects:

[0019] 1. The tourniquet of this invention, which does not require pressure after venipuncture, can be tied to the outside of the patient's arm when the patient's coagulation function is insufficient. It continuously applies pressure to the bleeding site after venipuncture through the pressure component, which can prevent bleeding at the wound site, help promote wound healing, and avoid bruising and hematoma caused by insufficient pressure.

[0020] 2. The tourniquet of this invention, which does not require pressure after intravenous puncture, has a first and a second trachea connected to the pressure assembly for inflation and deflation. This allows for the inflation or deflation of the internal pressure bag, thereby adjusting the pressure applied to the patient's wound. This prevents bleeding from the wound while avoiding prolonged pressure that could cause discomfort or limb injury to the patient.

[0021] 3. The tourniquet of this invention, which does not require pressure after intravenous puncture, has a prothrombin layer on the surface of the pressure module. The prothrombin layer stores prothrombin agent and assists in the healing of the patient's wound through the prothrombin stored in the prothrombin layer.

[0022] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description

[0023] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0024] Figure 1 This is a front view of the tourniquet that does not require pressure application after intravenous puncture according to this utility model;

[0025] Figure 2 This is a back view of the non-compression tourniquet for intravenous puncture according to the present invention.

[0026] Figure 3 This is a schematic diagram showing the usage of the non-compression tourniquet after intravenous puncture according to this utility model.

[0027] Figure 4 This is a schematic diagram of the pressure assembly of the tourniquet for intravenous puncture that does not require pressure application according to this utility model.

[0028] Figure 5 This is a schematic diagram of the pressure balloon of the tourniquet that does not require pressure after intravenous puncture according to this utility model.

[0029] Figure 6 This is a schematic diagram of the drug storage groove in the prothrombin layer.

[0030] Figure label:

[0031] 1-Strip strap; 2-Fixing assembly; 3-Pressurization assembly; 4-First air tube; 5-One-way valve; 6-Second air tube; 7-Sealing cap;

[0032] 301 - Non-woven fabric; 302 - Pressure airbag; 303 - Waterproof layer; 304 - Prothrombin layer; 3041 - Drug storage groove. Detailed Implementation

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0034] Example 1

[0035] A specific embodiment of this utility model discloses a tourniquet that does not require pressure application after intravenous puncture, such as... Figure 1 , Figure 2 , Figure 3 As shown, it includes: a strip-shaped tourniquet 1, a pressure-applying component 3, a first trachea 4, and a second trachea 6; the two ends of the strip-shaped tourniquet 1 are provided with fixing components 2, which can bond the two ends of the strip-shaped tourniquet 1 together, thereby binding the strip-shaped tourniquet 1 to the patient's arm; the pressure-applying component 3 is located in the middle of the strip-shaped tourniquet 1; the first trachea 4 is used to inflate the pressure-applying component 3, thereby pressurizing the venous puncture site in the patient's arm; the second trachea 6 is used to deflate the inflated pressure-applying component 3 to achieve pressure regulation; the tourniquet of this utility model, which does not require pressure application, achieves hemostasis by applying pressure to the puncture site through the pressure-applying component 3.

[0036] Furthermore, the two ends of the strip-shaped strap 1 are provided with fixing components 2, which can connect the two ends of the strip-shaped strap 1 into one piece. Preferably, the fixing components 2 are straps or Velcro. When the fixing components 2 are Velcro, they are provided on both sides of the strip-shaped strap 1, and the Velcro can be glued together to connect the strip-shaped strap 1 into a ring structure, such as... Figure 1 , Figure 2 , Figure 3 As shown.

[0037] In one specific embodiment of this utility model, the pressurizing component 3 has a multi-layer structure; the pressurizing component 3 is provided with, from the outside to the inside, a non-woven fabric 301, a pressurizing airbag 302, a waterproof layer 303, and a prothrombin layer 304, as shown below. Figure 4 As shown.

[0038] Specifically, the nonwoven fabric 301 is fixedly connected to the strip strap 1 or is an integral structure.

[0039] Specifically, the pressurized airbag 302 is a rectangular airbag, a circular airbag, or an elliptical airbag; or, as... Figure 5 As shown, the pressurized airbag 302 is an annular airbag.

[0040] Furthermore, the first trachea 4 and the second trachea 6 are simultaneously connected to the pressurized airbag 302 for inflating or deflating the pressurized airbag 302.

[0041] Specifically, the end of the first air tube 4 is an open end, which can be connected to an inflation device.

[0042] In one specific embodiment of this utility model, a one-way valve 5 is provided on the first trachea 4. The one-way valve 5 is a medical one-way valve. The medical one-way valve is a mature product in the field of medical devices. When implementing the invention, the appropriate model and type of the medical one-way valve are selected as needed.

[0043] Specifically, the one-way valve 5 allows gas to enter the pressurization bladder 302 of the pressurization assembly 3 through the first air pipe 4, but prevents it from flowing out in the opposite direction.

[0044] In one specific embodiment of this utility model, a sealing cap 7 is detachably installed at the end of the second air tube 6.

[0045] Preferably, the end of the second trachea 6 is a rigid plastic tube with external threads on its surface; correspondingly, the sealing cap 7 is cylindrical with internal threads on its inner surface. The second trachea 6 and the sealing cap 7 are screwed together. When the sealing cap 7 is unscrewed from the second trachea 6, the gas in the pressure bag 302 can overflow from the second trachea 6, thereby allowing the pressure bag 302 to be deflated and adjusted to regulate the pressure applied to the patient's wound.

[0046] Preferably, the coverage area of ​​the pressurized airbag 302 is not less than 6 cm². 2 Preferably, the coverage area of ​​the pressurized airbag 302 is 4cm × 2cm.

[0047] In one specific embodiment of this utility model, the waterproof layer 303 can prevent liquid from seeping out.

[0048] Preferably, the waterproof layer 303 is a plastic film or a soft gel.

[0049] In one specific embodiment of this utility model, the prothrombin layer 304 is used to store the prothrombin reagent.

[0050] Specifically, the prothrombin layer 304 is a sponge material or a colloidal material that adsorbs prothrombin.

[0051] Specifically, prothrombin is a powdered drug with hemostatic properties.

[0052] In one specific embodiment of this invention, when the prothrombin layer 304 is made of sponge material, the prothrombin agent is adsorbed through the sponge's own adsorption function. When the pressure component 3 is pressed tightly against the patient's venous puncture wound, the prothrombin agent acts on the patient's wound to achieve the effect of assisting in coagulation and hemostasis.

[0053] Furthermore, when the prothrombin layer 304 is made of sponge material, before using the pressure-free tourniquet of this invention for hemostasis, the prothrombin agent needs to be coated on the surface of the prothrombin layer 304. This allows the tourniquet to achieve hemostasis when it is applied to the patient's puncture wound. The sponge containing lyophilized prothrombin powder provides rapid local hemostasis. Simultaneously, the sponge expands after absorbing the flowing blood, working in conjunction with the outer side of the tourniquet to apply pressure to the wound and reduce blood leakage.

[0054] Preferably, when the prothrombin layer 304 is made of sponge material, the thickness of the sponge layer is 3mm to 5mm.

[0055] In another specific embodiment of this utility model, when the prothrombin layer 304 is made of a colloidal material (such as silicone), its surface is processed with a drug storage groove 3041. Specifically, the prothrombin agent is filled in the drug storage groove 3041 for storage. When the pressure component 3 is pressed against the patient's wound, due to the deformable characteristics of the colloidal material, the prothrombin agent in the drug storage groove 3041 is squeezed out from the drug storage groove 3041 and then comes into contact with the patient's wound to achieve the hemostatic effect on the wound.

[0056] Preferably, the drug storage groove 3041 is grid-shaped. Alternatively, the drug storage groove 3041 is honeycomb-shaped, such as... Figure 6 As shown.

[0057] Furthermore, when the prothrombin layer 304 is a colloidal material and has a drug storage groove 3041 processed on its surface, the prothrombin powder can be pre-stored in the drug storage groove 3041, and a removable plastic film can be pasted on the surface of the prothrombin layer 304; since the surface of the plastic film is smooth, the prothrombin agent inside the drug storage groove 3041 will not be brought out when the plastic surface is peeled off.

[0058] Preferably, the depth of the medicine storage groove 3041 is 0.5mm to 1mm.

[0059] When using the pressure-free tourniquet of this invention, firstly, the prothrombin agent is coated on the surface of the prothrombin layer 304 (if pre-filled, recoating is not necessary); then, the strip band 1 is wrapped around the patient's puncture site and fixed by the fixing components 2 at both ends, so that the tourniquet is bound to the outside of the patient's wound and the pressure component 3 is pressed against the surface of the puncture wound; furthermore, the pressure bag 302 is inflated through the first trachea 4, and after inflation, the pressure bag 302 expands to further press against the patient's puncture wound, thereby preventing blood from flowing out.

[0060] It is worth noting that for patients with impaired coagulation function, prolonged pressure and prothrombin agents are required to achieve hemostasis. In practice, prolonged pressure on the patient's arm may cause discomfort or even tissue necrosis. Therefore, the pressure bag 302 should be repeatedly inflated and deflated at regular intervals (e.g., 5 minutes / 10 minutes) to ensure blood supply to the patient's extremities and minimize patient discomfort or other damage while achieving hemostasis and coagulation.

[0061] Compared with the prior art, the technical solution provided in this embodiment has at least one of the following beneficial effects:

[0062] 1. The pressure-free tourniquet of this utility model, by setting a pressure component 3 in the middle of the strip band, after the tourniquet is tied to the patient's arm, can apply pressure to the patient's puncture wound through the pressure component 3, reduce or eliminate wound bleeding, and promote wound healing.

[0063] 2. The pressure-free tourniquet of this utility model applies pressure to the wound after puncture by local application, while the pressure on other areas around the wound is relatively small, ensuring that the patient's arm has a certain blood circulation and preventing tissue necrosis caused by prolonged lack of blood flow.

[0064] 3. The pressure-free tourniquet of this utility model is provided with a first trachea 4 and a second trachea 6, and a one-way valve 5 and a sealing cap 7 are respectively provided on the first trachea 4 and the second trachea 6, which can be used to inflate or deflate the pressure bag 302, thereby allowing real-time adjustment of the pressure applied by the tourniquet to the patient's wound. For patients with thrombocytopenia or coagulation abnormalities, local pressure is applied using the pressure bag 302 to ensure that the patient has continuous and stable pressure when wearing the tourniquet for hemostasis, avoiding bruising and hematoma caused by insufficient pressure, and the pressure of the bag can be adjusted according to the patient's bleeding situation and comfort.

[0065] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tourniquet that requires no pressure application after intravenous puncture, characterized in that, include: A strip band (1), a pressurizing assembly (3), a first trachea (4), and a second trachea (6); the strip band (1) can be tied around the patient's arm; the pressurizing assembly (3) is located in the middle of the strip band (1); The pressurization component (3) consists of a non-woven fabric (301), a pressurization airbag (302), a waterproof layer (303), and a prothrombin layer (304) arranged sequentially from the outside to the inside. A first trachea (4) and a second trachea (6) are connected to the pressurization airbag (302). The first trachea (4) is used to inflate the pressurization airbag (302), and the pressurization airbag (302) can pressurize the venous puncture site in the patient's arm after inflation. The second trachea (6) is used to deflate the pressurization airbag (302) after inflation. The prothrombin layer (304) is used to store the prothrombin agent.

2. The tourniquet for venipuncture without pressure application according to claim 1, characterized in that, The two ends of the strip belt are provided with fixing components (2), which can connect the two ends of the strip belt (1) into one piece; the non-woven fabric (301) is fixedly connected to the strip belt (1) or is an integral structure.

3. The tourniquet for venipuncture without pressure application according to claim 1, characterized in that, The pressurized airbag (302) can be a rectangular airbag, a circular airbag, an elliptical airbag, or an annular airbag.

4. The tourniquet for venipuncture without pressure application according to any one of claims 1-3, characterized in that, The end of the first air tube (4) is an open end, which can be connected to an inflation device.

5. The tourniquet for venipuncture without pressure application according to claim 4, characterized in that, The first air tube (4) is equipped with a one-way valve (5), which allows gas to flow from the first air tube (4) into the pressurization bladder (302) of the pressurization assembly (3) without flowing out in the opposite direction.

6. The tourniquet for venipuncture without pressure application according to any one of claims 1-3 and 5, characterized in that, The end of the second trachea (6) is detachably fitted with a sealing cap (7).

7. The tourniquet for venipuncture without pressure application according to claim 1, characterized in that, The prothrombin layer (304) is a sponge or colloidal material adsorbed with prothrombin.

8. The tourniquet for venipuncture without pressure application according to claim 7, characterized in that, When the prothrombin layer (304) is made of sponge, the prothrombin agent is adsorbed by the sponge's own adsorption capacity.

9. The tourniquet for venipuncture without pressure application according to claim 7, characterized in that, When the prothrombin layer (304) is a colloidal material, its surface is processed with a drug storage groove (3041); the prothrombin agent is filled in the drug storage groove (3041) for storage.

10. The tourniquet for venipuncture without pressure application according to claim 9, characterized in that, The medicine storage groove (3041) is grid-shaped; or, the medicine storage groove (3041) is honeycomb-shaped.

Images