Brachial artery tourniquet with air bag

Abstract

The utility model discloses a brachial artery hemostat with air bag, including the clamping plate, the tourniquet and the fixed band of connection on the clamping plate, the clamping plate has the arc shape of bionic human body arm appearance's arc support surface, is provided with air bag pad on the arc support surface, is provided with a plurality of through air holes on air bag pad, the tourniquet is movably connected on the clamping plate, is provided with silica gel pressure block on the tourniquet. The arc support surface of bionic human body arm appearance on the clamp can better support the shape of patient's arm, improve arm stress uniformity, the elastic soft air bag pad on the arc support surface can improve patient comfort, avoid rigid extrusion to patient's arm, a plurality of air holes on air bag pad can guarantee the air permeability of arm skin, the tourniquet of removal setting can adjust position according to the position of patient's wound, and silica gel pressure block can carry out flexible pressing to the wound on arm, avoid the tissue ischemia and injury caused by pressing too much while pressing the wound and carrying out compression hemostasis.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a brachial artery hemostat with an airbag. Background Technology

[0002] With the rapid development of endovascular techniques, interventional therapy has become a core method for the diagnosis and treatment of vascular diseases. The traditional femoral artery approach has become increasingly limited in complex cases due to anatomical variations such as vascular tortuosity, stenosis, or occlusion. Although the radial artery approach has advantages such as fewer puncture complications, its relatively small diameter (average 2.3-2.8 mm) makes it difficult to accommodate ≥7F sheaths for treating complex lesions. Therefore, the brachial artery approach (average diameter 3.5-4.2 mm), with its smaller diameter, has been widely used in complex interventional treatments such as iliofemoral artery occlusive lesions and endovascular repair of thoracic and abdominal aortic aneurysms.

[0003] Traditional hemostatic devices are typically made of rigid materials (such as plastic or metal) forming a splint structure to fix a pressure pad and maintain continuous pressure on the wound. Because these rigid splints lack elasticity, they can easily create localized high pressure on the skin of the non-puncture arm during fixation, especially in high-mobility areas such as the elbow, potentially leading to local pressure sores, nerve damage (or impaired blood circulation). Furthermore, the airtight design of rigid materials hinders normal skin respiration, and prolonged use can lead to the accumulation of sweat on the local skin, causing skin barrier damage, maceration, and even infection, posing a higher risk, especially to elderly patients. Utility Model Content

[0004] Therefore, this invention aims to solve the problem that existing brachial artery hemostats can easily cause hard pressure injuries to the human hand, and thus provides a brachial artery hemostat with an airbag.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A brachial artery hemostat with an airbag includes a splint, a tourniquet connected to the splint, and a fixing strap. The splint has an arc-shaped support surface that mimics the shape of a human arm. The splint has a through hole, and an airbag pad located on the through hole is attached to the splint. The airbag pad has several through-holes. The tourniquet is movably connected to the splint, and a silicone pressure block is provided on the tourniquet.

[0007] Furthermore, the clamp includes a front support portion and a rear support portion connected at an inclination of 5°-15°, and the airbag cushion is provided on both the front support portion and the rear support portion.

[0008] Furthermore, the cross-sectional dimension of the front support portion is smaller than that of the rear support portion, and the end of the front support portion that is away from the rear support portion gradually narrows.

[0009] Furthermore, the airbag cushion is provided with several small airbags arranged at even intervals, and adjacent small airbags are connected by connecting tubes.

[0010] Furthermore, a number of the ventilation holes are evenly spaced on the airbag pad, and a ventilation hole is provided between every four adjacent small airbags.

[0011] Furthermore, the small airbag is circular, and the vent is square.

[0012] Furthermore, the airbag cushion is provided with at least one inflation tube, the outer side of the clamp is provided with a fixing protrusion, and the fixing protrusion is provided with a detachably connected soft plug, which is suitable for blocking the inflation port of the inflation tube.

[0013] Furthermore, multiple support rods suitable for supporting the airbag cushion are evenly spaced on the through hole.

[0014] Furthermore, multiple connection ports are provided on the opposite two sides of the clamp, and the tourniquet and the fixing strap are connected to the multiple connection ports in a one-to-one correspondence, and the width of the tourniquet is smaller than the width of the connection port to which it is connected.

[0015] Furthermore, the edges of the clamping plate are provided with smooth chamfers, and the top corners of the clamping plate are provided with rounded corners.

[0016] The technical solution of this utility model has the following advantages:

[0017] 1. The brachial artery hemostat with airbag provided by this utility model features an arc-shaped support surface on the clamp, mimicking the shape of a human arm. This better conforms to the shape of the patient's arm, improving the uniformity of force distribution and preventing excessive local pressure. An airbag pad is placed on the arc-shaped support surface of the clamp. The elastic and soft airbag pad improves patient comfort and avoids pressure sores or nerve damage caused by hard compression of the patient's arm. Several ventilation holes on the airbag pad located in the through-hole of the clamp ensure that the ventilation holes are connected to the outside, thereby ensuring the breathability of the patient's arm skin and promoting postoperative recovery. The movable design of the tourniquet allows for easy adjustment of the tourniquet position according to the location of the patient's wound. The silicone pressure block on the tourniquet provides gentle pressure on the wound on the arm, ensuring normal blood flow while compressing the wound to stop bleeding, and avoiding tissue ischemia and damage caused by excessive pressure.

[0018] 2. The brachial artery hemostat with airbag provided by this utility model includes a splint comprising a front support portion and a rear support portion connected at an angle of 5°-15°, both of which are equipped with airbag cushions. This design, with the front and rear support portions connected at an angle, can adapt to the slightly bent shape of the human arm in a naturally relaxed state, improving the fit when supporting the patient's arm; the airbag cushions on both the front and rear support portions further enhance patient comfort.

[0019] 3. The brachial artery hemostat with airbag provided by this utility model has a front support portion with a smaller cross-sectional dimension than the rear support portion, and the front support portion gradually narrows at the end away from the rear support portion. This design allows for better support in accordance with the shape of the patient's arm, while also limiting the position of the patient's arm to prevent it from moving up and down and causing the wound to detach from the tourniquet's pressure point.

[0020] 4. The brachial artery hemostat with airbag provided by this utility model has several small airbags evenly spaced on the airbag pad, and adjacent small airbags are connected by connecting tubes. This design allows the elastic deformation of the airbag pad to distribute pressure over a wider skin contact area through the connected small airbags, improving the pressure uniformity when the airbag pad compresses the patient's arm, reducing the risk of pressure sores at the wound site on the patient's arm, and alleviating patient discomfort.

[0021] 5. The brachial artery hemostat with airbag provided by this utility model has several vent holes evenly spaced on the airbag pad, and a vent hole is provided between every four adjacent small airbags. This design can ensure the breathability of the arm skin, reduce sweat accumulation, avoid skin maceration and infection risks, reduce the stuffiness of long-term wear for patients, and facilitate postoperative recovery.

[0022] 6. The brachial artery hemostat with airbag provided by this utility model has a circular airbag and square vent holes. This design reduces the contact area between the circular airbag and the skin, while the square vent holes increase the skin's ventilation area and improve breathability.

[0023] 7. The brachial artery hemostat with airbag provided by this utility model has at least one inflation tube on the airbag cushion, a fixing protrusion on the outer side of the clamp, and a detachably connected soft plug on the fixing protrusion. The soft plug is suitable for blocking the inflation port of the inflation tube. This arrangement allows for easy inflation of the airbag cushion through the inflation tube, and the soft plug can block the inflation port of the inflation tube to prevent air leakage. By connecting the soft plug to the fixing protrusion, it can be prevented from being lost when not blocking the inflation tube. Simultaneously, after the soft plug blocks the inflation tube, the connection between the soft plug and the fixing protrusion also limits the inflation tube, preventing it from swinging during hand movement.

[0024] 8. The brachial artery hemostat with airbag provided by this utility model has multiple support rods evenly spaced on the through hole, with the support rods located below the airbag to provide support for the airbag. This arrangement, because the airbag is a flexible structure, can be supported by the support rods, improving its support performance. Simultaneously, since the airbag is located on the through hole, and the through hole occupies a significant area on the clamping plate, the soft airbag could collapse due to insufficient support. Therefore, designing the support rods on the through hole effectively ensures the support function for the airbag.

[0025] 9. The brachial artery hemostat with airbag provided by this utility model has multiple connection ports on both opposite edges of the splint. The tourniquet and the fixing strap are connected to the multiple connection ports one by one, and the width of the tourniquet is smaller than the width of the connection port it is connected to. This design allows the tourniquet to move within the connection port, which is wider than itself. This movement within the connection port facilitates the adjustment of the tourniquet according to the different locations of the patient's wound.

[0026] 10. The brachial artery hemostat with airbag provided by this utility model has a splint with rounded chamfers at the edges and a rounded corner at the top. This design can prevent the edges or top corners of the splint from causing scratches or punctures to the patient. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in 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 utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of the brachial artery hemostat with airbag provided in Embodiment 1 of this utility model;

[0029] Figure 2 An exploded view of the brachial artery hemostat with airbag provided in Embodiment 1 of this utility model;

[0030] Figure 3 A schematic diagram of the structure of the pneumatic brachial artery hemostat provided in Embodiment 2 of this utility model;

[0031] Figure 4 A three-dimensional structural diagram of the bracket provided in Embodiment 2 of this utility model;

[0032] Figure 5 A three-dimensional structural diagram of the integrated airbag cushion provided in Embodiment 2 of this utility model;

[0033] Figure 6This is a split view of the integrated airbag cushion provided in Embodiment 2 of this utility model;

[0034] Figure 7 This is an exploded view of the brachial artery hemostat with airbag provided in Embodiment 3 of this utility model;

[0035] Figure 8 This is a schematic diagram of the structure of the airbag cushion provided in Embodiment 3 of this utility model.

[0036] Explanation of reference numerals in the attached drawings: 1. Clamping plate; 2. Front support; 3. Rear support; 4. First connection port; 5. Second connection port; 6. Airbag cushion; 7. Vent hole; 8. Small airbag; 9. Connecting tube; 10. Support rod; 11. Fixing protrusion; 12. Soft plug; 13. Inflation tube; 14. Fixing strap; 15. Tourniquet; 16. Silicone pressure block; 17. Through hole. Detailed Implementation

[0037] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1:

[0042] like Figures 1-2 The brachial artery hemostat shown includes a splint 1, a tourniquet 15 connected to the splint 1, and a fixing strap 14. The splint 1 has an arc-shaped support surface that mimics the shape of a human arm. The splint 1 has a through hole 17. An airbag 6 located on the through hole 17 is attached to the splint 1. The airbag 6 has several through ventilation holes 7. The tourniquet 15 is movably connected to the splint 1. A silicone pressure block 16 is provided on the tourniquet 15.

[0043] This air-cushioned brachial artery hemostat features a clamp with an arc-shaped support surface that mimics the shape of a human arm. This design better conforms to the patient's arm shape, improving the even distribution of force and preventing excessive local pressure. An air-cushion pad 6 is placed on the arc-shaped support surface of the clamp 1. The elastic and soft air-cushion pad 6 enhances patient comfort and avoids pressure sores or nerve damage caused by hard compression. Several ventilation holes 7 on the air-cushion pad 6, located in the through-hole 17 of the clamp 1, ensure that the ventilation holes 7 communicate with the outside, thereby ensuring the breathability of the patient's arm skin and promoting postoperative recovery. The movable design of the tourniquet 15 allows for easy adjustment of its position according to the location of the patient's wound. The silicone pressure block 16 on the tourniquet 15 provides gentle pressure to the wound on the arm, ensuring normal blood flow while applying pressure to stop bleeding, and preventing tissue ischemia and damage caused by excessive pressure.

[0044] In this embodiment, the splint 1 includes a front support portion 2 and a rear support portion 3 connected at an angle of 10°, and both the front support portion 2 and the rear support portion 3 are provided with airbag cushions 6. This arrangement, with the front support portion 2 and the rear support portion 3 connected at an angle, can adapt to the slightly bent shape of the human arm in a naturally relaxed state, improving the adaptability when supporting the patient's arm; the airbag cushions 6 on both the front support portion 2 and the rear support portion 3 can improve patient comfort.

[0045] Specifically, the cross-sectional dimension of the front support part 2 is smaller than that of the rear support part 3, and the end of the front support part 2 that is away from the rear support part 3 gradually narrows. This design can better support the patient's arm shape and limit the movement of the patient's arm, preventing the wound from falling off the tourniquet 15 pressure point due to up-and-down movement of the arm.

[0046] Specifically, the edges of the splint 1 are rounded, and the top corners of the splint 1 are rounded. This design prevents the edges or top corners of the splint 1 from causing scratches or punctures to the patient.

[0047] In this embodiment, multiple connection ports are provided on the opposite sides of the splint 1. The tourniquet 15 and the fixing strap 14 are connected to the multiple connection ports in a one-to-one correspondence. The width of the tourniquet 15 is smaller than the width of the connection port it is connected to. This arrangement allows the tourniquet 15 to move within the connection port, which is wider than itself. This movement within the connection port facilitates the tourniquet 15's movement according to the different positions of the patient's wound. Specifically, both the front support portion 2 and the rear support portion 3 are provided with two sets of first connection ports 4 for connecting the fixing straps 14, which are spaced apart. The rear support portion 3 is provided with a set of second connection ports 5 for connecting the tourniquet 15 at one end near the front support portion 2. Each set of connection ports is located on the opposite sides of the splint 1. The two ends of each fixing strap 14 or tourniquet 15 are connected to the opposite sides of the splint 1 and to the same set of connection ports. Specifically, the connection port for connecting the tourniquet 15 extends along the length edge of the rear support portion 3.

[0048] In this embodiment, the air cushion 6 is provided with a plurality of small airbags 8 evenly spaced apart, and adjacent small airbags 8 are connected by connecting tubes 9. With this configuration, the elastic deformation of the air cushion 6 can be distributed to a wider skin contact surface through the connected small airbags 8, thereby improving the pressure uniformity when the air cushion 6 compresses the patient's arm, reducing the risk of pressure sores at the wound site on the patient's arm, and relieving the patient's discomfort.

[0049] Specifically, several ventilation holes 7 are evenly spaced on the airbag pad 6, and a ventilation hole 7 is provided between every four adjacent small airbags 8. This arrangement ensures the breathability of the arm skin, reduces sweat accumulation, avoids skin maceration and infection risks, reduces the stuffiness of long-term wear for patients, and is beneficial to the patient's postoperative recovery.

[0050] In this embodiment, the small airbag 8 is circular, and the vent 7 is square. This design reduces the contact area between the circular airbag 8 and the skin, while the square vent 7 increases the skin's air-breathing area and improves breathability.

[0051] In this embodiment, the airbag cushion 6 is provided with at least one inflation tube 13, and a fixing protrusion 11 is provided on the outer side of the clamp 1. A detachably connected soft plug 12 is provided on the fixing protrusion 11, which is suitable for blocking the inflation port of the inflation tube 13. With this arrangement, the airbag cushion 6 can be easily inflated through the inflation tube 13, and the soft plug 12 can block the inflation port of the inflation tube 13 to prevent air leakage. By connecting the soft plug 12 to the fixing protrusion 11, it can be prevented from being lost when it is not blocking the inflation tube 13. At the same time, after the inflation tube 13 is blocked by the soft plug 12, the connection between the soft plug 12 and the fixing protrusion 11 can also limit the inflation tube 13, which can prevent the inflation tube 13 from swinging when the hand moves.

[0052] In this embodiment, the airbag cushion 6 on the front support 2 and the airbag cushion 6 on the rear support 3 are separate units, and each airbag cushion 6 is provided with an inflation tube 13. In an alternative embodiment, the airbag cushion 6 on the front support 2 and the airbag cushion 6 on the rear support 3 are integrally connected airbag cushions, and the inflation tube 13 can be located at the position of the front support 2 or the rear support 3.

[0053] In this embodiment, multiple support rods 10 are evenly spaced on the through-hole 17 of the clamping plate 1, and all support rods 10 are located below the airbag cushion 6. This arrangement allows the airbag cushion 6, being a flexible structure, to be supported by the support rods 10, improving its support performance. Simultaneously, since the airbag cushion 6 is located on the through-hole 17, and the through-hole 17 occupies a significant area on the clamping plate 1, the soft airbag cushion 6 could collapse due to insufficient support. Therefore, designing the support rods 10 on the through-hole 17 effectively ensures the support of the airbag cushion 6. Specifically, the width of the support rod 10 is smaller than the diameter of the vent hole 7. This arrangement prevents the support rod 10 from being too wide and blocking the vent hole 7, ensuring the connectivity and breathability between the vent hole 7 and the through-hole 17.

[0054] In this embodiment, the silicone pressure block 16 is made of transparent soft silicone. The transparent silicone pressure block 16 allows for easy observation of whether there is bleeding at the puncture point, thus ensuring effective hemostasis of the wound.

[0055] Example 2: Figures 3-6 As shown, the difference from Embodiment 1 is that both the small airbag 8 and the vent 7 are circular.

[0056] Example 3: Figures 7-8 As shown, the difference from Embodiment 1 is that both the small airbag 8 and the vent 7 are square.

[0057] Example 4: (Figure not shown) The difference from Example 1 is that the small airbag 8 is square and the air vent 7 is round.

[0058] In summary, this air-cushioned brachial artery hemostat features a cuff with an arc-shaped support surface that mimics the shape of a human arm. This design better conforms to the patient's arm shape, improving the evenness of force distribution and preventing excessive local pressure. An air-cushion pad 6 on the arc-shaped support surface enhances patient comfort and prevents pressure sores or nerve damage caused by harsh compression. Several ventilation holes 7 are located in the through-holes 17 of the splint 1, ensuring ventilation and allowing the skin of the patient's arm to breathe, which is beneficial for postoperative recovery. The movable tourniquet 15 allows for easy adjustment based on the location of the wound. The silicone pressure block 16 on the tourniquet 15 provides gentle pressure to the wound, ensuring normal blood flow while preventing tissue ischemia and damage from excessive pressure.

[0059] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A brachial artery hemostat with an airbag, characterized in that, The device includes a splint (1), a tourniquet (15) connected to the splint (1), and a fixing strap (14); the splint (1) has an arc-shaped support surface in the shape of a human arm, a through hole (17) is provided on the splint (1), an airbag (6) located on the through hole (17) is attached to the splint (1), and the airbag (6) is provided with several through ventilation holes (7); the tourniquet (15) is movably connected to the splint (1), and a silicone pressure block (16) is provided on the tourniquet (15).

2. The brachial artery hemostat with airbag according to claim 1, characterized in that, The clamp (1) includes a front support part (2) and a rear support part (3) connected at an inclination of 5°-15°, and the airbag cushion (6) is provided on both the front support part (2) and the rear support part (3).

3. The brachial artery hemostat with airbag according to claim 2, characterized in that, The cross-sectional dimension of the front support part (2) is smaller than that of the rear support part (3), and the end of the front support part (2) away from the rear support part (3) gradually narrows.

4. The brachial artery hemostat with airbag according to claim 1, characterized in that, The airbag cushion (6) is provided with a number of small airbags (8) arranged at even intervals, and a connecting tube (9) connects adjacent small airbags (8).

5. The brachial artery hemostat with a pneumatic bladder according to claim 4, characterized in that, A number of the ventilation holes (7) are evenly spaced on the airbag pad (6), and the ventilation holes (7) are provided between every 4 adjacent small airbags (8).

6. The brachial artery hemostat with airbag according to claim 4, characterized in that, The small airbag (8) is circular, and the air vent (7) is square.

7. The brachial artery hemostat with airbag according to claim 1, characterized in that, At least one inflation tube (13) is provided on the airbag cushion (6), and a fixing protrusion (11) is provided on the outside of the clamp (1). A detachable soft plug (12) is provided on the fixing protrusion (11), and the soft plug (12) is suitable for blocking the inflation port of the inflation tube (13).

8. The brachial artery hemostat with airbag according to claim 1, characterized in that, Multiple support rods (10) suitable for supporting the airbag cushion (6) are evenly spaced on the through hole (17).

9. The brachial artery hemostat with airbag according to claim 1, characterized in that, Multiple connection ports are provided on the opposite sides of the clamp (1). The tourniquet (15) and the fixing strap (14) are connected to the multiple connection ports in a one-to-one correspondence. The width of the tourniquet (15) is smaller than the width of the connection port to which it is connected.

10. The brachial artery hemostat with airbag according to claim 1, characterized in that, The edge of the clamp (1) is provided with a smooth chamfer, and the top corner of the clamp (1) is provided with a rounded corner.

Images