A pneumatic tourniquet

Abstract

The utility model belongs to the technical field of medical devices, and specifically relates to a pneumatic tourniquet, which includes an adhesive thorn buckle, an adhesive wool buckle, an upper fabric, a lower fabric, a nozzle seat, a connecting hose and a nozzle plug, wherein the adhesive thorn buckle is fixedly connected to the top surface of the upper fabric, the adhesive thorn buckle and the adhesive wool buckle are detachably connected, the upper fabric and the lower fabric are connected to form a closed air bag, an inner plastic plate and an inner film are arranged between the upper fabric and the lower fabric, the inner plastic plate is fused and connected with the upper fabric, the adhesive thorn buckle, the upper fabric, the inner plastic plate and the inner film are provided with air holes corresponding to the positions, one end of the nozzle seat is fused and connected with the air hole on the inner film, the connecting hose is connected to the other end of the nozzle seat and the nozzle plug, a sealing ring is arranged inside the nozzle seat, and a skirt is arranged at the connection port of the nozzle seat and the connecting hose. The tourniquet can enhance the connection adaptability between the nozzle seat and the connecting hose, and the inner plastic plate is fixed to increase the durability of the product.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a pneumatic tourniquet. Background Art

[0002] The existing products of this type of tourniquet are basically straight or tapered strip-shaped structures with an inflatable airbag structure inside. One tourniquet has one or two inflatable airbags. During use, it is wrapped around the roots of the patient's limbs (the proximal end of the limbs to the heart). After being wrapped around the human limbs, it has a cylindrical or tapered structure. Then, under the action of the air pressure output by the external hemostatic instrument, the tourniquet is inflated and expanded, which produces a blood flow compression and blocking effect on the limbs, achieving the hemostatic effect required by the operation.

[0003] Existing technologies all use straight or tapered strip-shaped airbag structures and shapes, mostly with two layers of TPU or PVC fabric on the top and bottom, and another layer of TPU or PVC film inside to form a closed airbag. There are one or two thin plastic plates inside the airbag to even out the pressure inside the airbag on the patient's limbs. The outside of the airbag is wrapped with cloth to improve appearance and prevent fabric burr defects. The outer layer of the airbag TPU fabric has a single or double nylon adhesive buckle and thorn buckle sewn into one, which is fixed with an adhesive fixing buckle or a lock buckle to achieve the purpose of binding, fixing and bonding the tourniquet. Tourniquets are all designed with a nozzle seat made of TPU or PVC material, which is connected to the hemostatic instrument through an air hose and a joint. The structure and process principle of this type of tourniquet products are basically the same, and therefore they all have a higher manufacturing cost.

[0004] The air hose is placed in one or a group of TPU or PVC material air nozzle seats to connect the tourniquet body, and the connection method is glue bonding. The design of this type of air nozzle seat is relatively simple, but it is easy to cause poor fit due to the processing diameter error of the air hose, resulting in air leakage at the connection position.

[0005] Among them, the one or two thin plastic plates inside the airbag of this type of product are freely placed in the airbag. It is easy for the burrs of the plastic plate to move freely inside the airbag, causing damage to the TPU film under the action of air pressure, further causing the air pressure sealing effect of the tourniquet to fail. Utility Model Content

[0006] The purpose of the utility model is to solve the problems of air leakage at the hose connection and damage to the equipment due to movement of the plastic plate described in the background technology. A new pneumatic tourniquet is proposed, which can fix the plastic plate and enhance the air tightness of the hose connection.

[0007] A technical solution adopted to achieve the above-mentioned purpose is a pneumatic tourniquet, which includes an adhesive barb, an adhesive wool button, an upper fabric, a lower fabric, a nozzle seat, a connecting hose and a nozzle plug, wherein the adhesive barb is fixedly connected to the top surface of the upper fabric, the adhesive barb and the adhesive wool button are detachably connected, the upper fabric and the lower fabric are connected to form a closed air bag, an inner plastic plate and an inner film are provided between the upper fabric and the lower fabric, the inner plastic plate is fused and connected to the upper fabric, corresponding air holes are provided on the adhesive barb, the upper fabric, the inner plastic plate and the inner film, one end of the nozzle seat is fused and connected to the air hole on the inner film, and the connecting hose connects the other end of the nozzle seat and the nozzle plug;

[0008] A sealing ring is arranged inside the air valve seat, and a skirt is arranged at the connection port between the air valve seat and the connecting hose.

[0009] In the above technical solution, high frequency or ultrasonic waves are used to fuse and fix the inner plastic plate to the upper fabric layer to prevent the inner plastic plate from moving when the pneumatic tourniquet is inflated, causing the tourniquet to be cut and damaged; a skirt is provided at the air inlet of the air nozzle seat to adapt to the outer diameter deviation of the connecting hose generated during the manufacturing process, thereby preventing air leakage at the connection.

[0010] Preferably, the peripheral sides of the upper fabric layer, the lower fabric layer and the inner film are fused and connected.

[0011] Furthermore, the adhesive wool button is fixedly connected to the top surface of the upper fabric.

[0012] In the above technical solution, the adhesive wool button can be fixed to the top surface of the upper fabric by sewing.

[0013] Furthermore, the ends of the bonding barb button and the bonding wool button which are away from each other are detachably connected.

[0014] In the above technical solution, the adhesive barb button and the adhesive wool button can be wrapped around each other to play a fixing role, wherein the adhesive wool button does not need to be fixed to the upper fabric. At this time, the adhesive barb button and the adhesive wool button can be connected at one end close to each other, and the pneumatic tourniquet can be wrapped around the patient's leg or arm, and the adhesive barb button and the adhesive wool button can be connected at one end away from each other to play a fixing role.

[0015] Furthermore, the pneumatic tourniquet also includes a label strap, and the label strap is fixedly connected to one side of the adhesive barb.

[0016] In the above technical solution, the label tape and the adhesive barb are sewn together to achieve the purpose of traceability of the pneumatic tourniquet product.

[0017] Furthermore, the pneumatic tourniquet also includes a binding strap, which is fixedly connected to the lower layer of fabric and is arranged perpendicular to the lower layer of fabric.

[0018] In the above technical solution, the bandage serves the purpose of tying and fixing the pneumatic tourniquet after it is inflated.

[0019] Furthermore, the material of the inner plastic plate is selected from PE or PVC, and the thickness of the inner plastic plate is 0.5-0.8 mm.

[0020] In the above technical solution, the inner plastic plate enables the pneumatic tourniquet to have a certain fixed shape, so that it has a certain rigidity after being inflated.

[0021] Furthermore, the material of the upper fabric layer and the lower fabric layer is selected from TPU or PVC.

[0022] Furthermore, the valve seat is made of TPU or PVC.

[0023] Furthermore, the skirt is annular, and the inner diameter of the skirt is smaller than the outer diameter of the connecting hose.

[0024] In the above technical solution, the thickness of the skirt is preferably greater than the maximum tolerance of the connecting hose, so as to play a sealing role and prevent the air pressure tourniquet from leaking.

[0025] Furthermore, the thickness of the skirt is greater than or equal to 0.12 mm.

[0026] Furthermore, the inner diameter of the air valve seat is greater than or equal to the outer diameter of the connecting hose.

[0027] The advantages of the utility model are:

[0028] 1. The utility model fuses and connects the upper fabric and the inner plastic plate by high-frequency and ultrasonic methods, so that the inner plastic plate can be fixed to prevent the inner plastic plate from moving and cutting the inner film when the air pressure tourniquet is inflated.

[0029] 2. The utility model provides a skirt at the air inlet of the air nozzle seat and a sealing ring inside, so that the inserted connecting hose has an effective airtight fit and obtains an effective air pressure sealing effect.

[0030] 3. The adhesive hair buckle and tourniquet of the utility model can be connected without suturing and fixed by connecting the two ends of the adhesive barbed buckle, thereby reducing production steps and reducing production costs.

[0031] 4. The utility model adopts a fusion connection method, which can eliminate the problem of fiber shedding on the raw edge of the air pressure tourniquet, thereby reducing the process of wrapping the edge of the tourniquet device with fabric and reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the components of the utility model;

[0034] Figure 2 This is a schematic diagram of the structure of the utility model for bonding the wool button and the upper fabric;

[0035] Figure 3 This is a schematic diagram of the structure of the upper fabric and inner plastic plate of the utility model;

[0036] Figure 4 This is a structural schematic diagram of the gas nozzle seat of the utility model;

[0037] Figure 5 It is a structural schematic diagram of the utility model;

[0038] Figure 6 This is a schematic diagram of the use of the utility model.

[0039] Illustrations: 1. Label tape, 2. Adhesive barb, 3. Adhesive wool button, 4. Upper fabric, 5. Inner plastic plate, 6. Air nozzle seat, 7. Connecting hose, 8. Air nozzle plug, 9. Inner film, 10. Lower fabric, 11. Binding strap, 12. Sealing ring, 13. Skirt, 14. Suture line, 15. Fusion section. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] Example 1

[0043] like Figure 1 As shown, a pneumatic tourniquet is composed of a label belt 1, an adhesive spike buckle 2, an adhesive wool buckle 3, an upper fabric 4, an inner plastic plate 5, two air nozzle seats 6, a connecting hose 7, an air nozzle plug 8, an inner film 9, a lower fabric 10 and a binding belt 11, wherein the adhesive spike buckle is fixedly connected to the top surface of the upper fabric, the label belt is fixed by sewing on the surface of the adhesive spike buckle, and the adhesive wool buckle is fixed to the surface of the upper fabric by sewing, and the sewing line 14 is shown Figure 2 The inner plastic plate is fused and connected with the side of the upper fabric opposite to the wool button by high frequency or ultrasonic wave, and the fusion section 15 is shown in FIG. Figure 3 The upper fabric, the inner film and the peripheral sides of the lower fabric are fused and connected by high frequency or ultrasonic means to form a closed airbag, and two corresponding air holes are provided on the bonding barb, the upper fabric, the inner plastic plate and the inner film. The air outlets of the two air nozzle seats are respectively fused and connected with the two air holes on the inner film by high frequency or ultrasonic means, and the connecting hose is connected to the air inlet of the air nozzle seat and the air nozzle plug, wherein the functional part of the bonding barb is arranged downward, and the functional part of the bonding wool button is arranged upward.

[0044] The strap is fixedly connected to the lower fabric, and the strap is vertically arranged to the lower fabric. The specific structure of the air pressure tourniquet is shown in Figure 5 .

[0045] like Figure 4 As shown, the valve seat is "L" shaped, a skirt 13 is provided at the connection port between the valve seat and the connecting hose, a sealing ring 12 is provided inside the valve seat near the skirt, and the skirt is annular, and the inner diameter of the skirt is smaller than the outer diameter of the connecting hose.

[0046] The thickness of the skirt is greater than the manufacturing tolerance of the connecting hose (the manufacturing tolerance is the standard outer diameter of the connecting hose minus the outer diameter of the connecting hose actually manufactured, the absolute value), so that when the connecting hose has a manufacturing tolerance, it can still achieve a good sealing effect, and the internal sealing ring has the same function as the skirt.

[0047] In this embodiment, the thickness of the skirt is greater than the maximum manufacturing tolerance of the connecting hose, so that the connecting hose can still achieve a good sealing effect at the minimum size.

[0048] In this embodiment, the thickness of the skirt is greater than or equal to 0.12 mm, and may be 0.12 mm, 0.13 mm, 0.14 mm, etc. but not limited thereto. The thickness of the skirt needs to be selected according to the manufacturing tolerance of the connecting hose.

[0049] In this embodiment, the standard outer diameter of the connecting hose is preferably 5-10 mm, and can be 5 mm, 6 mm, 7 mm, etc. but not limited thereto. The maximum manufacturing tolerance is 0.1 mm. The standard outer diameter of the connecting hose can be selected according to product requirements.

[0050] The material of the upper fabric and the lower fabric is selected from TPU or PVC, the material of the valve seat is TPU or PVC, and the material of the inner plastic plate is selected from PE or PVC, which can be specifically selected according to product requirements.

[0051] The thickness of the inner plastic plate is 0.5-0.8 mm, and optional thicknesses include 0.5 mm, 0.6 mm, 0.7 mm, etc., but not limited thereto, and can be selected based on product requirements.

[0052] Example 2

[0053] A pneumatic tourniquet, the components and structure of which are similar to those of Example 1, except that the middle portion of the adhesive barb is fixedly connected to the upper fabric, one end of the adhesive wool button is detachably connected to the adhesive barb, and the adhesive wool button is not connected to the upper fabric.

[0054] The working process and principle of the utility model: Figure 6 As shown, the pneumatic tourniquet is wrapped around the patient's limbs, connected and fixed by bonding barbed buckles and bonding hair buckles, and then the strap is knotted to further fix it, and the air nozzle plug is connected to an external universal pneumatic tourniquet device. The main function of the universal pneumatic tourniquet device is to provide an air source with a certain stable pressure. After ventilation, the air bag expands to prevent blood circulation and play a role in hemostasis.

[0055] There will inevitably be a processing diameter error in the production process of the connecting hose, and this error can easily lead to air leakage at the junction of the connecting hose and the air nozzle seat. The air nozzle seat of the utility model is provided with a skirt whose inner diameter is smaller than the minimum outer diameter of the connecting hose after actual production, and is combined with a sealing ring to improve the sealing of the junction between the connecting hose and the air nozzle seat.

[0056] The utility model fuses and connects the upper fabric and the inner plastic plate by means of high frequency or ultrasonic waves, thereby preventing the inner plastic plate from moving.

[0057] It should be noted that, according to common clinical product requirements, a pneumatic tourniquet can be designed with a single or double airbag, and a double airbag product can be considered to be a combination of simple single airbags.

[0058] Finally, it should be noted that this embodiment is only used to illustrate the present invention and does not limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A pneumatic tourniquet, characterized in that: The pneumatic tourniquet comprises an adhesive barb (2), an adhesive wool barb (3), an upper fabric (4), a lower fabric (10), an air nozzle seat (6), a connecting hose (7) and an air nozzle plug (8); the adhesive barb is fixedly connected to the top surface of the upper fabric; the adhesive barb and the adhesive wool barb are detachably connected; the upper fabric and the lower fabric are connected to form a closed air bag; an inner plastic plate (5) and an inner film (9) are provided between the upper fabric and the lower fabric; the inner plastic plate is fused with the upper fabric; air holes corresponding to the positions are provided on the adhesive barb, the upper fabric, the inner plastic plate and the inner film; one end of the air nozzle seat is fused with the air hole on the inner film; the connecting hose connects the other end of the air nozzle seat and the air nozzle plug; A sealing ring (12) is provided inside the air nozzle seat, and a skirt (13) is provided at the connection port between the air nozzle seat and the connecting hose.

2. The pneumatic tourniquet according to claim 1, characterized in that: The bonding wool button is fixedly connected to the top surface of the upper fabric.

3. The pneumatic tourniquet according to claim 1, characterized in that: The end of the bonding barb button away from the bonding wool button is detachably connected.

4. The pneumatic tourniquet according to claim 1, characterized in that: The pneumatic tourniquet also includes a label belt (1), which is fixedly connected to one side of the adhesive barb.

5. The pneumatic tourniquet according to claim 1, characterized in that: The pneumatic tourniquet also includes a binding belt (11), which is fixedly connected to the lower layer of fabric and is arranged perpendicular to the lower layer of fabric.

6. The pneumatic tourniquet according to claim 1, characterized in that: The material of the inner plastic plate is selected from PE or PVC, and the thickness of the inner plastic plate is 0.5-0.8 mm.

7. The pneumatic tourniquet according to claim 1, characterized in that: The material of the upper fabric and the lower fabric is selected from TPU or PVC.

8. The pneumatic tourniquet according to claim 1, characterized in that: The material of the air nozzle seat is TPU or PVC.

9. The pneumatic tourniquet according to claim 1, characterized in that: The skirt is annular, and the inner diameter of the skirt is smaller than the outer diameter of the connecting hose.

10. The pneumatic tourniquet according to claim 1, characterized in that: The inner diameter of the air valve seat is greater than or equal to the outer diameter of the connecting hose.

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