Blood flow blocking device

Abstract

A blood flow blocking device is provided with a wearing space used for containing a part to be subjected to hemostasis, and the blood flow blocking device comprises a first supporting piece, a second supporting piece, at least one hemostasis balloon and an air pipe. One longitudinal end of the second supporting piece is movably connected with one longitudinal end of the first supporting piece, and the wearing space is formed between the first supporting piece and the second supporting piece; an air cavity is formed in each hemostasis balloon, and the at least one hemostasis balloon is arranged on the side, facing the wearing space, of the first supporting piece; and the air pipe is communicated with the air cavity of each hemostatic balloon. According to the blood flow blocking device, main arteries or bleeding spots can be accurately pressed, and the hemostatic effect is achieved. The first supporting piece and the second supporting piece are movably connected with the opposite longitudinal ends, the part to be subjected to hemostasis is placed in the wearing space, or the part to be subjected to hemostasis is directly arranged in the wearing space in the transverse direction in a penetrating mode, and operation is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a blood flow blocking device. BACKGROUND

[0002] In the related art of medical equipment, a surgical pneumatic tourniquet system is an important hemostatic device in extremity surgery, which can provide a bloodless surgical field environment and clear anatomical levels for complex orthopedic surgery, ensuring the safety, accuracy and efficiency of the surgery. However, the existing hemostatic device can only be used at a fixed position, which may cause ischemia of tissues outside the surgical area and increase the risk of complications. Meanwhile, the hemostatic device cannot be selectively compressed, which may cause skin and nerve damage. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a blood flow blocking device which can selectively block the blood flow of a target blood vessel or a bleeding site.

[0004] To achieve the above-mentioned purpose, the present application provides a blood flow blocking device which forms a wearing space for accommodating a site to be hemostatic, and comprises:

[0005] a first support member;

[0006] a second support member, a longitudinal end of the second support member being movably connected with a longitudinal end of the first support member, and the first support member and the second support member forming the wearing space therebetween;

[0007] at least one hemostatic balloon, each of the hemostatic balloons forming an air cavity inside, and the at least one hemostatic balloon being arranged on a side of the first support member facing the wearing space;

[0008] an air tube, the air tube being connected with the air cavity of each of the hemostatic balloons.

[0009] In some embodiments, the at least one hemostatic balloon is one hemostatic balloon, the first support member forms a penetrating opening and a limiting slot, the one hemostatic balloon is arranged in the limiting slot, a first end of the air tube extends into the first support member through the penetrating opening and is connected with the air cavity of the one hemostatic balloon through the limiting slot;

[0010] Or, the at least one hemostatic balloon is a plurality of hemostatic balloons, the first support is formed with a penetrating opening and a plurality of limiting grooves corresponding to the number of the plurality of hemostatic balloons, the blood flow blocking device comprises a plurality of branch pipes corresponding to the number of the plurality of hemostatic balloons, the plurality of hemostatic balloons are arranged one by one in the plurality of limiting grooves, the first end of the trachea extends into the first support through the penetrating opening and is connected to one end of the plurality of branch pipes, and the other end of the plurality of branch pipes is connected to the air cavities of the plurality of hemostatic balloons one by one through the openings of the plurality of limiting grooves.

[0011] In some embodiments, a side of the first support away from the wearing space is formed with a protruding mounting portion, the mounting portion is formed with a mounting surface towards the longitudinal end, and the penetrating opening is formed on the mounting surface.

[0012] In some embodiments, the first support comprises a first fixing portion, and the second support comprises a second fixing portion, and the first fixing portion is detachably connected to the second fixing portion.

[0013] In some embodiments, one of the first fixing portion and the second fixing portion is an adhesive hook surface, and the other is a fixing band with an adhesive hair surface, and the adhesive hook surface and the adhesive hair surface of the fixing band are detachably connected.

[0014] In some embodiments, the first fixing portion is the adhesive hook surface arranged on the side of the first support away from the wearing space, and the second fixing portion is the fixing band connected to the longitudinal other end of the second support.

[0015] In some embodiments, the blood flow blocking device further comprises a rotating shaft extending in the transverse direction, and the longitudinal end of the second support is rotatably connected to the longitudinal end of the first support through the rotating shaft.

[0016] In some embodiments, the longitudinal end of the first support is formed with two first hinge portions arranged in the transverse direction, the longitudinal end of the second support is formed with a second hinge portion, the second hinge portion is embedded in the two first hinge portions in the transverse direction, and the rotating shaft is sequentially arranged in the first hinge portion and the two second hinge portions in the transverse direction.

[0017] In some embodiments, the blood flow blocking device comprises a switch valve, a pressurized balloon, and a gas pressure observation member, the pressurized balloon is connected to the second end of the trachea, the switch valve is arranged on the trachea, and the gas pressure observation member is arranged on the trachea.

[0018] In some embodiments, the at least one hemostatic balloon is a plurality of hemostatic balloons, and the plurality of hemostatic balloons are arranged in the longitudinal direction.

[0019] Compared with the prior art, the blood flow blocking device provided by the embodiment of the application can block blood flow at a site to be hemostatic, such as a forearm or a distal 1 / 3 segment of a lower leg and a site distal thereto. In a first aspect, a user can place the site to be hemostatic in a wearing space from a longitudinal other end opposite to the active connection of the first support and the second support, or directly place the site to be hemostatic in the wearing space along the transverse direction of the first support and the second support, so that the operation is more convenient. After the hemostatic balloon is inflated, the main artery or the bleeding point can be accurately compressed to achieve the hemostatic effect. In a second aspect, compared with a traditional balloon tourniquet, the device can reduce unnecessary ischemic injury and reduce the risk of local and systemic complications. In a third aspect, the device does not completely block blood flow when in use, has a long safe use time, and has a smaller influence on systemic hemodynamics. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following briefly introduces the drawings used in the specific description of the embodiments. Obviously, the drawings used in the following specific description are only some embodiments of the application. Based on these drawings, those skilled in the art can obtain other drawings without any creative effort.

[0021] Figure 1 is a structural schematic diagram of a blood flow blocking device according to an embodiment of the application;

[0022] Figure 2 is an exploded view of the blood flow blocking device according to an embodiment of the application.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] Blood flow blocking device 100; wearing space 101; first support 1; insertion port 11; limiting groove 12; mounting portion 13; mounting surface 14; first fixing portion 15; adhesive hook surface 151; first hinged portion 16; second support 2; second fixing portion 21; fixing belt 211; second hinged portion 22; air pipe 3; rotating shaft 4; on-off valve 5; pressurized balloon 6; air pressure observation member 7; hemostatic balloon 8; branch pipe 9. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the application, the application will be described more fully below with reference to the related drawings. The drawings show one or more embodiments of the application, so that the understanding of the technical solutions disclosed by the application is more accurate and thorough. However, it should be understood that the application can be implemented in various forms, and is not limited to the embodiments described below.

[0026] The same or similar reference signs in the drawings of the present application correspond to the same or similar components; in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are used only for exemplary illustration, and cannot be understood as a limitation on the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0027] In addition, if the present application has a description involving "first", "second" and the like in the embodiments, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes include the A scheme, or the B scheme, or the A and B schemes are satisfied at the same time.

[0028] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection claimed by the present application.

[0029] The blood flow blocking device 100 provided by the embodiments of the present application, please refer to Figure 1 and Figure 2 , a wearing space 101 for accommodating the bleeding site is formed, the blood flow blocking device 100 comprises a first support 1, a second support 2, at least one hemostatic balloon 8 and a trachea 3. The longitudinal end of the second support 2 is movably connected with the longitudinal end of the first support 1, and the wearing space 101 is formed between the first support 1 and the second support 2. The interior of each hemostatic balloon 8 is formed with an air cavity, and at least one hemostatic balloon 8 is arranged on the side of the first support 1 facing the wearing space 101. The trachea 3 communicates with the air cavity of each hemostatic balloon 8.

[0030] Specifically, the first support 1 and the second support 2 are both substantially shell-shaped structures with a certain curvature, the arc-shaped concave surface of the first support 1 and the arc-shaped concave surface of the second support 2 are oppositely arranged to form the wearing space 101 for accommodating the bleeding site, and the material of the first support 1 and the second support 2 includes but is not limited to plastic parts with high structural strength and light weight.

[0031] The hemostatic balloon 8 is made of flexible material and has a spherical shape, for example, the hemostatic balloon 8 can have a spherical shape, an ellipsoidal shape, etc. In an embodiment, the hemostatic balloon 8 has a shape of a capsule structure enclosed by a hemispherical structure with two concave surfaces arranged opposite to each other and a cylindrical structure. The number of hemostatic balloons 8 can be arranged according to the number of parts to be hemostatically controlled, for example, when the upper arm and the thigh need to be hemostatically controlled, one hemostatic balloon 8 can be arranged; when the forearm needs to be hemostatically controlled, two hemostatic balloons 8 can be arranged; when the lower leg needs to be hemostatically controlled, three hemostatic balloons 8 can be arranged; that is, one or more hemostatic balloons 8 can be arranged. The trachea 3 is used to pressurize and inflate the air cavity of each hemostatic balloon 8. At the same time, at least one hemostatic balloon 8 can protrude in the thickness direction of the binding member in the inflated state.

[0032] The blood flow blocking device 100 provided by the present application can be used to hemostatically control the parts to be hemostatically controlled, for example, the forearm or the distal 1 / 3 segment of the lower leg and the parts beyond the distal 1 / 3 segment. On the one hand, the user can place the parts to be hemostatically controlled in the wearing space 101 from the longitudinal end opposite to the active connection of the first support member 1 and the second support member 2, or directly place the parts to be hemostatically controlled in the wearing space 101 along the transverse direction of the first support member 1 and the second support member 2, which is more convenient to operate. After the hemostatic balloon 8 is inflated, it protrudes into the inner side of the wearing space 101, which can limit and deepen the compression of the main arteries (for example, the radial artery and the ulnar artery of the forearm) or the bleeding points of the corresponding limb parts, thereby achieving the hemostatic effect.

[0033] On the other hand, compared with the conventional air bag tourniquet device which can only be used at a fixed part, the blood flow blocking device 100 provided by the present application can reduce the unnecessary ischemic injury of a large amount of tissue outside the surgical area, and reduce the risk of local and systemic complications. Moreover, the hemostatic balloon 8 can selectively compress the blood vessels. For the surgery of the forearm or the distal 1 / 3 segment of the lower leg and the parts beyond the distal 1 / 3 segment, only the blood flow of the main arteries of the proximal limb of the forearm or the lower leg is blocked, and the proximal limb tissue is no longer ischemic and hypoxic, the hemostasis is more accurate, the required pressure is small, and the complications such as skin damage, nerve damage, tourniquet reaction, etc. are less likely to occur.

[0034] On the other hand, compared with the conventional air bag tourniquet device which can only be used at a fixed part, the blood flow blocking device 100 provided by the present application can reduce the unnecessary ischemic injury of a large amount of tissue outside the surgical area, and reduce the risk of local and systemic complications. Moreover, the hemostatic balloon 8 can selectively compress the blood vessels. For the surgery of the forearm or the distal 1 / 3 segment of the lower leg and the parts beyond the distal 1 / 3 segment, only the blood flow of the main arteries of the proximal limb of the forearm or the lower leg is blocked, and the proximal limb tissue is no longer ischemic and hypoxic, the hemostasis is more accurate, the required pressure is small, and the complications such as skin damage, nerve damage, tourniquet reaction, etc. are less likely to occur.

[0035] The active connection manner of the longitudinal end of the second support member 2 and the longitudinal end of the first support member 1 is not particularly limited, including but not limited to rotary connection, buckle connection, plug-in connection, etc. For example, in an embodiment, please refer to Figure 1 and Figure 2, the blood flow blocking device 100 further comprises a rotating shaft 4 extending in the transverse direction, and the longitudinal end of the second support 2 is rotatably connected to the longitudinal end of the first support 1 through the rotating shaft 4. By adjusting the relative rotation of the first support 1 and the second support 2 along the rotating shaft 4, the size of the wearing space 101 between the first support 1 and the second support 2 can be conveniently adjusted. Specifically, in an embodiment, referring to Figure 1 and Figure 2 , the longitudinal end of the first support 1 is formed with two first hinge parts 16 arranged in the transverse direction, the longitudinal end of the second support 2 is formed with a second hinge part 22, the second hinge part 22 is embedded in the transverse direction between the two first hinge parts 16, and the first hinge part 16 and the second hinge part 22 are both formed with a hole in the transverse direction, and the rotating shaft 4 is sequentially inserted into the first hinge part 16 and the two second hinge parts 22 through the above-mentioned holes in the transverse direction. In this way, the first hinge part 16 and the two second hinge parts 22 are axially symmetrical structures around the rotating shaft 4, the force is more balanced during product rotation, the stability is higher, and the rotation is smoother.

[0036] In an embodiment, referring to Figure 1 and Figure 2 , the at least one balloon is one balloon, the first support 1 is formed with a penetrating opening 11 and a limiting groove 12, one balloon is arranged in the limiting groove 12, and the first end of the trachea 3 extends into the first support 1 through the penetrating opening 11 and is connected to the air cavity of the one balloon through the limiting groove 12. Specifically, the limiting groove 12 is provided with one hemostatic balloon 8, and the shape of the limiting groove 12 is matched with the shape of the corresponding hemostatic balloon 8, so that the hemostatic balloon 8 can be reliably fixed at the preset position after being pressurized, thereby reducing the situation that the hemostatic balloon 8 deviates from the local pressing hemostasis position due to external force. In addition, a part of the trachea 3 is located in the first support 1, which can protect the trachea 3 to a certain extent, and the overall structure of the product is more compact.

[0037] In an embodiment, referring to Figure 1 and Figure 2, at least one balloon is a plurality of balloons, the first support member 1 is formed with a penetrating opening 11 and a plurality of limiting grooves 12 corresponding to the number of the plurality of balloons, the blood flow blocking device 100 comprises a plurality of branch pipes 9 corresponding to the number of the plurality of balloons, and the plurality of balloons are arranged one by one in the plurality of limiting grooves 12. The first end of the air pipe 3 extends into the first support member 1 through the penetrating opening 11 and is connected to one end of the plurality of branch pipes 9 at the same time, and the other end of the plurality of branch pipes 9 is connected to the air cavity of the plurality of balloons one by one through the slot of the plurality of limiting grooves 12. That is, when the number of hemostatic balloons 8 is more than one, the airflow from the air pipe 3 can be uniformly guided into the air cavity of each hemostatic balloon 8 through the plurality of branch pipes 9, so that the air cavity of each hemostatic balloon 8 has the same air pressure. Specifically, the connection between the plurality of branch pipes 9 and the air pipe 3 can be achieved through a multi-way connector, and the number of communication openings of the multi-way connector is the sum of the number of the air pipe 3 and the plurality of branch pipes 9. At the same time, one hemostatic balloon 8 is arranged in each limiting groove 12, and the shape of each limiting groove 12 is matched with the shape of the corresponding hemostatic balloon 8, so that the hemostatic balloon 8 can be reliably fixed at the preset position after being pressurized. In addition, part of the air pipe 3 and the plurality of branch pipes 9 are located in the first support member 1, which can protect the air pipe 3 and the plurality of branch pipes 9 to a certain extent, and the overall structure of the product is more compact.

[0038] In an embodiment, please refer to Figure 1 and Figure 2 The side of the first support member 1 away from the wearing space 101 is formed with a protruding mounting portion 13, the mounting portion 13 is formed with a mounting surface 14 toward the longitudinal one end, and the mounting surface 14 is formed with the penetrating opening 11. Specifically, the mounting surface 14 is a plane toward the longitudinal one end, and the arrangement of the mounting surface 14 can ensure that the connection between the air pipe 3 and the penetrating opening 11 is not easy to bend, and the mounting portion 13 can also increase the internal space of the first support portion to provide a larger accommodation space for the air pipe 3 and the plurality of branch pipes 9.

[0039] In an embodiment, please refer to Figure 1 and Figure 2 The first support member 1 comprises a first fixing portion 15, and the second support member 2 comprises a second fixing portion 21, and the first fixing portion 15 and the second fixing portion 21 are detachably connected. After the first fixing portion 15 and the second fixing portion 21 are matched, the relative position of the first support member 1 and the second support member 2 will not move relatively, so as to ensure that the blood flow blocking device 100 can be stably and reliably fixed at the hemostasis site.

[0040] In an embodiment, one of the first fixing part 15 and the second fixing part 21 is the adhesive hook surface 151, and the other is the fixing belt 211 with an adhesive hair surface, and the adhesive hook surface 151 and the adhesive hair surface of the fixing belt 211 are detachably connected. That is, when the first fixing part 15 is the adhesive hook surface 151, the second fixing part 21 is the fixing belt 211 with an adhesive hair surface; when the second fixing part 21 is the adhesive hook surface 151, the first fixing part 15 is the fixing belt 211 with an adhesive hair surface. When the adhesive hook surface 151 and the fixing belt 211 with an adhesive hair surface are in contact, the hooks on the adhesive hook surface 151 and the loop-shaped fibers on the adhesive hair surface are embedded in each other, and when they are pressed together, the hooks will grab the loop-shaped material, thereby forming a firm connection. For example, in an embodiment, please refer to Figure 1 and Figure 2 , the first fixing part 15 is the adhesive hook surface 151 arranged on the first support 1 away from the wearing space 101, and the second fixing part 21 is the fixing belt 211 connected to the other end of the second support 2 in the longitudinal direction.

[0041] In an embodiment, the blood flow blocking device 100 includes a switch valve 5, a pressurized balloon 6, and a gas pressure observation member 7. The pressurized balloon 6 is connected to the second end of the gas pipe 3, the switch valve 5 is arranged on the gas pipe 3, and the gas pressure observation member 7 is arranged on the gas pipe 3. After the switch valve 5 is opened, the pressurized balloon 6 is pressed to supply gas to each air chamber through the gas pipe 3, and when the pressure is sufficient, the switch valve 5 is closed to achieve pressure maintenance for each air chamber.

[0042] The gas pressure observation member 7 includes, but is not limited to, a gas pressure gauge, a gas pressure meter, a gas pressure sensor, etc. Specifically, in an embodiment, the gas pressure observation member 7 is a gas pressure gauge arranged on the gas pipe 3.

[0043] In an embodiment, the at least one hemostatic balloon 8 is a plurality of hemostatic balloons 8, and the plurality of hemostatic balloons 8 are arranged at intervals along the length direction of the binding member. Such an arrangement can effectively press the local pressing area of the part to be hemostatic. For example, when the forearm of the human body needs to be hemostatic, for example, in an embodiment, please refer to Figure 1 and Figure 2 , the number of the at least one hemostatic balloon 8 is two, and the two hemostatic balloons 8 are arranged at intervals along the length direction of the binding member. Such an arrangement can simultaneously implement blood flow blocking for the radial artery and the ulnar artery of the forearm after the two hemostatic balloons 8 are pressurized.

[0044] In an embodiment, the blood flow blocking device 100 includes a pneumatic tourniquet motor connected to the second end of the gas pipe 3. The pneumatic tourniquet motor can pressurize and inflate the air chamber of each hemostatic balloon 2 through the connection of the gas pipe 3, and the pneumatic tourniquet motor also has a gas pressure observation function, which can monitor the gas pressure of the air chamber in real time.

[0045] Finally, it should be noted that the above merely describes the preferred embodiments of the present application and does not constitute a limitation on the protection scope of the present application. Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions described in the foregoing embodiments can still be modified or some technical features can be replaced by equivalents for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be within the protection scope of the present application.

Claims

1.A blood flow blocking device formed with a wearing space for accommodating a site to be hemostatic, comprising: a first support; a second support, a longitudinal end of the second support movably connected with a longitudinal end of the first support, a wearing space formed between the first support and the second support; at least one hemostatic balloon, each of the at least one hemostatic balloon formed with an air cavity inside, the at least one hemostatic balloon arranged on a side of the first support facing the wearing space; and an air tube, the air tube communicating with the air cavity of each of the at least one hemostatic balloon. The at least one hemostatic balloon is one hemostatic balloon, the first support formed with a penetrating port and a limiting slot, the one hemostatic balloon arranged in the limiting slot, a first end of the air tube penetrating into the first support through the penetrating port and connecting the air cavity of the one hemostatic balloon through the limiting slot. Alternatively, the at least one hemostatic balloon is a plurality of hemostatic balloons, the first support formed with a penetrating port and a plurality of limiting slots corresponding to the number of the plurality of hemostatic balloons, the blood flow blocking device comprising a plurality of branch tubes corresponding to the number of the plurality of hemostatic balloons, the plurality of hemostatic balloons arranged in the plurality of limiting slots one by one, a first end of the air tube penetrating into the first support through the penetrating port and simultaneously connecting one end of the plurality of branch tubes, the other end of the plurality of branch tubes respectively connected with the air cavity of the plurality of hemostatic balloons one by one through the slot of the plurality of limiting slots. The first support formed with a protruding mounting portion on a side of the first support facing away from the wearing space, the mounting portion formed with a mounting surface facing a longitudinal end, the mounting surface formed with the penetrating port. The first support comprising a first fixing portion, the second support comprising a second fixing portion, the first fixing portion and the second fixing portion detachably connected. One of the first fixing portion and the second fixing portion is an adhesive hook surface, the other of the first fixing portion and the second fixing portion is a fixing band with an adhesive hair surface, the adhesive hook surface and the adhesive hair surface of the fixing band detachably connected. The first fixing portion is the adhesive hook surface arranged on the first support facing away from the wearing space, the second fixing portion is the fixing band connected with a longitudinal other end of the second support. The blood flow blocking device further comprising a rotating shaft extending along a transverse direction, a longitudinal end of the second support movably connected with a longitudinal end of the first support through the rotating shaft. A longitudinal end of the first support formed with two first hinge portions arranged along a transverse direction, a longitudinal end of the second support formed with a second hinge portion, the second hinge portion embedded between the two first hinge portions along a transverse direction, the rotating shaft sequentially penetrating into the first hinge portion and the two second hinge portions along a transverse direction. The blood flow blocking device comprising a switch valve, a pressurized balloon and a gas pressure observation member, the pressurized balloon connected with a second end of the air tube, the switch valve arranged on the air tube, the gas pressure observation member arranged on the air tube. The at least one hemostatic balloon is a plurality of hemostatic balloons, the plurality of hemostatic balloons arranged along a longitudinal direction. ​ ​ ​ ​ 2. The blood flow blocking device of claim 1, wherein, ​ ​ 3. The blood flow blocking device of claim 2, wherein, ​ 4. The blood flow blocking device of claim 1, wherein, ​ 5. The blood flow blocking device of claim 4, wherein, ​ 6. The blood flow blocking device of claim 5, wherein, ​ 7. The blood flow blocking device of any one of claims 1-6, wherein, ​ 8. The blood flow blocking device of claim 7, wherein, ​ 9. The blood flow blocking device according to any one of claims 1-6, characterized in that, ​ 10. The blood flow blocking device of claim 1, wherein, ​

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