Hemodialysis internal fistula errhysis monitoring device

Abstract

The invention provides a hemodialysis internal fistula errhysis monitoring device, and belongs to the technical field of medical instruments, the hemodialysis internal fistula errhysis monitoring device comprises a monitoring component, the monitoring component comprises a fixing brace, a mounting hole is formed in the fixing brace, a disposable treatment towel is mounted on the inner wall of the fixing brace, a fixing assembly is mounted on the outer side of the fixing brace, and a monitoring assembly is mounted on the fixing assembly; an installation assembly is installed at the left end of the fixed support, a limiting assembly is installed between the installation assembly and the fixed support, an alarm and a power supply assembly are installed on the installation assembly, and a binding assembly is installed on the outer side of the fixed support. Therefore, the integrated device with the active monitoring and alarming functions is formed.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a blood dialysis fistula bleeding monitoring device. Background Technology

[0002] Currently, maintenance hemodialysis patients require arteriovenous fistula (AVF) puncture to establish vascular access during treatment. To prevent needle displacement or tubing dislodgement, protective shields or limb immobilization braces are commonly used clinically to secure the patient's fistula-side limb and the blood tubing.

[0003] However, these traditional tools have limited functionality and cannot monitor bleeding at the fistula puncture site in real time. During dialysis, the occurrence of bleeding relies entirely on regular rounds and visual observation by nursing staff. This leads to two main problems: First, to avoid covering the puncture site, the patient's fistula-side limb usually needs to be exposed outside the blanket, which can easily cause the limb to get cold during prolonged treatment, leading to patient discomfort and even complications such as vasospasm; second, human observation is prone to oversights, and it is impossible to immediately alert staff when bleeding occurs, which may result in blood waste, increased risk of infection, and increased workload for nurses. Summary of the Invention

[0004] The purpose of this invention is to provide a blood flow monitoring device for arteriovenous fistulas in hemodialysis, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A hemodialysis arteriovenous fistula bleeding monitoring device includes a monitoring component, a fixing bracket having an installation hole, a disposable treatment towel installed on the inner wall of the fixing bracket, a fixing component installed on the outer side of the fixing bracket, a monitoring component installed on the fixing component, an installation component installed at the left end of the fixing bracket, a limit component installed between the installation component and the fixing bracket, an alarm and a power supply component installed on the installation component, and a binding component installed on the outer side of the fixing bracket.

[0007] The fixing component includes two positioning grooves symmetrically opened on the inner wall of the fixing support. The inner wall of the positioning groove is provided with a sliding hole, and a clamping component is installed inside the sliding hole.

[0008] As a preferred embodiment of the present invention, the fixing component includes a mounting groove formed on the surface of the fixing bracket, the inner bottom wall of the mounting groove is provided with a threaded groove, a mounting plate is installed inside the mounting groove, and a fixing bolt is threadedly inserted into the mounting plate, with the fixing bolt threadedly inserted into the threaded groove.

[0009] In a preferred embodiment of the present invention, the monitoring component includes two clamps, which are located on the outer and inner sides of a disposable medical towel, respectively. The clamp closer to the outer side of the disposable medical towel is fixedly connected to a mounting plate. A connecting plate and a connecting plate are symmetrically fixedly connected to the outer sides of the two mounting plates, and the connecting plate and the connecting plate are hinged together. A first spring is fixedly connected between the two clamps. A metal sheet is fixedly connected to the opposite side of each of the two clamps. A blood seepage sensing strip is installed between the metal sheet away from the fixing bracket and the disposable medical towel.

[0010] As a preferred embodiment of the present invention, the installation assembly includes two slots symmetrically formed on the surface of the fixed support, a rod is inserted into the inside of the slot, and a cross plate is fixedly connected to the outside of the rod.

[0011] In a preferred embodiment of the present invention, the limiting component includes a cylinder and a groove. The top of the mounting plate is fixedly connected to the cylinder. The outer side of the fixing bracket is provided with a groove. A limiting block is installed inside the groove. A circular plate is slidably connected inside the cylinder. A pull rod is slidably inserted into the middle of the top of the cylinder. The bottom end of the pull rod is fixedly connected to the circular plate. A second spring is sleeved on the outer side of the pull rod.

[0012] In a preferred embodiment of the present invention, the top end of the limiting block penetrates the mounting plate and is fixedly connected to the bottom end face of the circular plate, and the two ends of the second spring are fixedly connected to the inner top wall of the circular plate and the cylinder, respectively.

[0013] In a preferred embodiment of the present invention, the power supply assembly includes a battery compartment fixedly connected to the top of the mounting plate, a plurality of limiting plates are symmetrically fixedly connected inside the battery compartment, a battery is installed between the plurality of limiting plates, and a cover plate is installed on the top of the battery compartment.

[0014] As a preferred embodiment of the present invention, the binding assembly includes a barbed patch and a binding strap. The binding strap and the barbed patch are fixedly connected to the front and rear sides of the outer wall of the fixing bracket, respectively, and a round barbed patch is fixedly connected to the inner side of the binding strap.

[0015] In a preferred embodiment of the present invention, the clamping assembly includes a lead screw and a slide rod. The top of the fixed support is rotatably connected to the lead screw, and a fixing frame is threaded onto the outer side of the lead screw. The slide rod is slidably inserted into the inside of the sliding hole, and a clamping plate is fixedly connected to the bottom end of the slide rod.

[0016] In a preferred embodiment of the present invention, the fixing frame is arranged in an "I" shape, and the top end of the sliding rod is fixedly connected to the fixing frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Modular monitoring structure: Combining traditional passive fixing brackets with electronic monitoring and alarm modules to form an integrated device with active monitoring and alarm functions.

[0019] 2. Integrated design of sensor strip and treatment towel: The bleeding sensor strip is creatively integrated into the disposable treatment towel, which realizes the monitoring function while avoiding cross-infection between different patients.

[0020] 3. Detachable and washable design: The main body of the brace and the electronic components are detachably connected, allowing the main body of the brace to be thoroughly cleaned and disinfected, and the electronic components to be reused, reducing the cost of use.

[0021] 4. Real-time automatic alarm: By detecting changes in the electrical properties of the sensing strip, bleeding is determined, enabling real-time automatic alarm without manual intervention, which significantly improves patient safety.

[0022] 5. By rotating the lead screw at the top of the fixing bracket, the fixing frame is driven to move vertically, and the movement is smoothly transmitted to the clamping plate using a sliding rod, achieving the effect of firmly pressing the edge of the disposable treatment towel into the positioning groove on the inner wall of the fixing bracket. This rigid clamping method ensures that the treatment towel remains flat and fixed throughout the monitoring process, completely avoiding the displacement or wrinkling of the treatment towel caused by patient movement. This ensures the continuous and accurate correspondence between the bleeding sensor strip and the puncture point position, effectively preventing monitoring failure or false alarms caused by the displacement of the treatment towel. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Schematic diagram of a structure with a portion removed Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the binding component structure of the present invention;

[0027] Figure 4 For the present invention Figure 1 Schematic diagram of a structure with a portion removed Figure 2 ;

[0028] Figure 5 For the present invention Figure 4Enlarged schematic diagram of the structure of region A in the middle;

[0029] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure of region B in the middle;

[0030] Figure 7 This is a schematic diagram of the fixing component and monitoring component structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the clamping assembly structure of the present invention.

[0032] In the diagram: 10. Fixing bracket; 11. Mounting hole; 12. Fixing component; 121. Threaded groove; 122. Mounting groove; 123. Mounting plate; 124. Fixing bolt; 13. Monitoring component; 131. Clamping plate; 132. Metal sheet; 133. Connecting plate; 134. First spring; 135. Connecting plate; 14. Alarm; 15. Power supply component; 151. Cover plate; 152. Battery compartment; 153. Limiting plate; 154. Battery; 16. Mounting component; 161. Slot; 1 62. Insert rod; 163. Horizontal plate; 17. Limiting component; 171. Cylinder; 172. Second spring; 173. Pull rod; 174. Round plate; 175. Groove; 176. Limiting block; 18. Disposable treatment towel; 19. Binding component; 191. Bristle patch; 192. Binding strap; 193. Round bristle patch; 20. Sliding hole; 201. Positioning groove; 21. Pressing component; 211. Fixing frame; 212. Lead screw; 213. Sliding rod; 214. Pressing plate; 22. Bleeding sensor strip. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] Reference Figure 1 This is the first embodiment of the present invention. This embodiment provides a blood flow monitoring device for arteriovenous fistula in hemodialysis, including a monitoring component, a fixing bracket 10, a mounting hole 11 on the fixing bracket 10, a disposable treatment towel 18 made of non-woven fabric installed on the inner wall of the fixing bracket 10, a fixing component 12 installed on the outer side of the fixing bracket 10, a monitoring component 13 installed on the fixing component 12, an installation component 16 installed on the left end of the fixing bracket 10, a limit component 17 installed between the installation component 16 and the fixing bracket 10, an alarm 14 and a power supply component 15 installed on the installation component 16, the alarm 14 is fixedly connected to the top of the horizontal plate 163, and a binding component 19 is installed on the outer side of the fixing bracket 10.

[0036] Reference Figure 6 The fixing component 12 includes a mounting groove 122 formed on the surface of the fixing bracket 10. The inner bottom wall of the mounting groove 122 is provided with a threaded groove 121. A mounting plate 123 is installed inside the mounting groove 122. A fixing bolt 124 is threaded into the mounting plate 123, and the fixing bolt 124 is threaded into the threaded groove 121. After the monitoring component 13 is clamped, the mounting plate 123 is installed into the mounting groove 122, and then the fixing bolt 124 is screwed in so that the fixing bolt 124 is threaded into the threaded groove 121, thereby fixing the monitoring component 13. This installation method also facilitates the disassembly of the monitoring component 13.

[0037] Reference Figure 7 The monitoring component 13 includes two clamps 131, located on the outer and inner sides of the disposable medical towel 18, respectively. The clamp 131 closer to the outer side of the disposable medical towel 18 is fixedly connected to the mounting plate 123. A connecting plate 133 and a connecting plate 135 are symmetrically fixedly connected to the outer sides of the two mounting plates 123, and the connecting plate 133 and the connecting plate 135 are hinged together. A first spring 134 is fixedly connected between the two clamps 131. A metal sheet 132 is fixedly connected to the opposite side of each of the two clamps 131. The metal sheet 132 is electrically connected to the alarm 14. A blood seepage sensing strip 22 is installed between the metal sheet 132 away from the fixing bracket 10 and the disposable medical towel 18. The bleeding sensing strip 22 is fixed to the disposable treatment towel 18. The monitoring component 13 is placed inside the mounting hole 11, and then the right end of the upper clamp 131 is pressed. At this time, the first spring 134 contracts, thereby clamping the two clamps 131 to the right end of the disposable treatment towel 18 and the bleeding sensing strip 22. At this time, the metal plates 132 on the opposite side of the two clamps 131 are in contact with one side of the disposable treatment towel 18 and the bleeding sensing strip 22, respectively. The bleeding sensing strip 22 is made of a moisture-sensitive material. When blood, which is a conductive liquid, wets the bleeding sensing strip 22, it will change its electrical characteristics such as resistance / capacitance. The monitoring component 13 monitors the electrical parameters of the bleeding sensing strip 22 in real time. Once the parameter change exceeds the set threshold, indicating that bleeding has occurred, the monitoring component 13 immediately triggers the alarm 14 to issue an audible and visual alarm to notify medical staff.

[0038] Reference Figure 1 and Figure 2The mounting assembly 16 includes two symmetrically arranged slots 161 on the surface of the fixed support 10. A rod 162 is inserted into the slot 161, and a horizontal plate 163 is fixedly connected to the outside of the rod 162. The limiting assembly 17 includes a cylinder 171 and a groove 175. The top of the mounting plate 123 is fixedly connected to the cylinder 171. The outside of the fixed support 10 has a groove 175, and a limiting block 176 is installed inside the groove 175. A circular plate 174 is slidably connected inside the cylinder 171. A pull rod 173 is slidably inserted into the middle of the top of the cylinder 171. The bottom end of the pull rod 173 is fixedly connected to the circular plate 174, and a second spring 172 is sleeved on the outside of the pull rod 173. The top end of the limiting block 176 penetrates the mounting plate 123 and is fixedly connected to the bottom end face of the circular plate 174. The two ends of the second spring 172 are respectively connected to the circular plate 174 and the cylinder. The inner top wall of 171 is fixedly connected. When the horizontal plate 163 needs to be installed, the pull rod 173 is driven to move upward, thereby causing the circular plate 174 to move upward. The upward movement of the circular plate 174 causes the limiting block 176 to move upward, so that the bottom end of the limiting block 176 is higher than the bottom end of the horizontal plate 163. During the upward movement of the circular plate 174, the second spring 172 is compressed and stored, and then the insertion rod 162 corresponds to the slot 161 and is inserted into the inside of the slot 161. When the insertion rod 162 is fully inserted into the inside of the slot 161, the limiting block 176 corresponds to the groove 175. At this time, the second spring 172 returns to its original position and generates a pushing force, causing the limiting block 176 to be inserted into the inside of the groove 175, thereby forming a limiting and fixing of the horizontal plate 163, thus completing the installation of the power supply component 15 and the alarm 14.

[0039] When it is necessary to disassemble the power supply component 15 and the alarm 14, the pull rod 173 is moved upward. The upward movement of the pull rod 173 causes the limiting block 176 to move out of the groove 175, thereby releasing the limitation on the horizontal plate 163. Then, the alarm 14 is moved to the left, thereby removing the insertion rod 162 from the slot 161. This facilitates the disassembly of the alarm 14 and the power supply component 15. This allows the fixing bracket 10 to be thoroughly cleaned and disinfected, and the electronic components can be reused, reducing the cost of use.

[0040] Reference Figure 4 and Figure 5The power supply assembly 15 includes a battery compartment 152 fixedly connected to the top of the mounting plate 123. Multiple limiting plates 153 are symmetrically fixedly connected inside the battery compartment 152. A storage battery 154 is installed between the multiple limiting plates 153. The storage battery 154 supplies power to all electrical appliances. The storage battery 154 is a rechargeable lithium battery. A USB charging port is provided on the outside of the storage battery 154. A cover plate 151 is installed on the top of the battery compartment 152. The cover plate 151 is fastened to the top of the battery compartment 152. Removing the cover plate 151 from the top of the battery compartment 152 makes it easy to remove the storage battery 154 from the inside of the battery compartment 152.

[0041] Reference Figure 1 and Figure 3 The binding component 19 includes a bristle patch 191 and a binding strap 192. The binding strap 192 and the bristle patch 191 are fixedly connected to the front and rear sides of the outer wall of the fixation brace 10, respectively. A round bristle patch 193 is fixedly connected to the inner side of the binding strap 192. The binding strap 192 is wrapped around the outside of the patient's arm, and then the round bristle patch 193, in conjunction with the bristle patch 191, is used to bind the fixation brace 10 to the outside of the patient's arm, thereby fixing the fixation brace 10 to the patient's arm. This not only prevents the fixation brace 10 from shifting during use, but also allows the arm to be covered with a blanket after the fixation brace 10 is fixed to the arm, avoiding the limb from getting cold during long-term treatment, which can cause patient discomfort or even complications such as vasospasm.

[0042] In use, the horizontal plate 163 is first installed, which drives the pull rod 173 to move upward, thereby causing the circular plate 174 to move upward. The upward movement of the circular plate 174 causes the limiting block 176 to move upward, so that the bottom surface of the limiting block 176 is higher than the bottom surface of the horizontal plate 163. During the upward movement of the circular plate 174, the second spring 172 is compressed and stores force, which causes the insertion rod 162 to correspond to the slot 161 and insert the insertion rod 162 into the inside of the slot 161. When the insertion rod 162 is fully inserted into the inside of the slot 161, the limiting block 176 corresponds to the groove 175. At this time, the second spring 172 returns to its original position and generates a pushing force, causing the limiting block 176 to insert into the inside of the groove 175, thereby forming a limiting and fixing of the horizontal plate 163, thus completing the installation of the power supply component 15 and the alarm 14.

[0043] Press the right end of the upper clamp 131. At this time, the first spring 134 contracts, thereby clamping the two clamps 131 on the right end of the disposable treatment towel 18 and the bleeding sensing strip 22. At this time, the metal plates 132 on the opposite side of the two clamps 131 contact one side of the disposable treatment towel 18 and the bleeding sensing strip 22 respectively. Then, the disposable treatment towel 18 is laid on the inside of the fixing bracket 10, and the monitoring component 13 is placed inside the mounting hole 11. The mounting plate 123 is installed inside the mounting groove 122. Then, the fixing bolt 124 is screwed in so that the fixing bolt 124 is threaded into the inside of the thread groove 121, thereby fixing the monitoring component 13. This installation method also facilitates the disassembly of the monitoring component 13.

[0044] The strap 192 is wrapped around the outside of the patient's arm, and then the round hair tape 193 and the barbed hair tape 191 are used to bind the fixation brace 10 to the outside of the patient's arm, thereby fixing the fixation brace 10 to the patient's arm and preventing the fixation brace 10 from shifting during use.

[0045] When blood, being a conductive liquid, wets the bleeding sensing strip 22, it changes its electrical properties, such as resistance / capacitance. The monitoring component 13 monitors the electrical parameters of the bleeding sensing strip 22 in real time. Once a parameter change is detected that exceeds a set threshold, indicating bleeding, the monitoring component 13 immediately triggers the alarm 14 to issue an audible and visual alarm, notifying medical personnel.

[0046] When it is necessary to disassemble the power supply component 15 and the alarm 14, the pull rod 173 is moved upward. The upward movement of the pull rod 173 causes the limiting block 176 to move out of the groove 175, thereby releasing the limitation on the horizontal plate 163. Then, the alarm 14 is moved to the left, thereby removing the insertion rod 162 from the slot 161. This facilitates the disassembly of the alarm 14 and the power supply component 15. This allows the fixing bracket 10 to be thoroughly cleaned and disinfected, and the electronic components can be reused, reducing the cost of use.

[0047] Example 2

[0048] Reference Figure 1 , Figure 2 and Figure 8 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a fixing component, including two positioning grooves 201 symmetrically opened on the inner wall of the fixing support 10. The inner wall of the positioning groove 201 is provided with a sliding hole 20, and a clamping component 21 is installed inside the sliding hole 20.

[0049] Reference Figure 8The clamping assembly 21 includes a lead screw 212 and a slide rod 213. The top of the fixed support 10 is rotatably connected to the lead screw 212. The outer side of the lead screw 212 is threaded with a fixed frame 211. The slide rod 213 is slidably inserted into the inside of the sliding hole 20. The bottom end of the slide rod 213 is fixedly connected to a clamping plate 214. The shape and size of the clamping plate 214 are adapted to the shape and size of the positioning groove 201. The four sliding holes 20 respectively play the role of limiting the sliding of the four slide rods 213, improving the stability of the clamping plate 214 when moving. The fixed frame 211 is set in an "I" shape structure, and the top end of the slide rod 213 is fixedly connected to the fixed frame 211.

[0050] In use, after the disposable treatment towel 18 is laid inside the fixed support 10, the screw 212 is rotated. The rotation of the screw 212 causes the fixed frame 211 to move upward, which in turn causes the four sliding rods 213 to move upward. The upward movement of the sliding rods 213 causes the pressing plate 214 to move upward. The upward movement of the pressing plate 214 presses and fixes the disposable treatment towel 18 inside the positioning groove 201, thereby fixing the disposable treatment towel 18 to the fixed support 10 and preventing the disposable treatment towel 18 from shifting during use.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hemodialysis arteriovenous fistula bleeding monitoring device, characterized in that: include, The monitoring component includes a fixing bracket (10), which has an installation hole (11). A disposable treatment towel (18) is installed on the inner wall of the fixing bracket (10). A fixing component (12) is installed on the outer side of the fixing bracket (10). A monitoring component (13) is installed on the fixing component (12). An installation component (16) is installed on the left end of the fixing bracket (10). A limit component (17) is installed between the installation component (16) and the fixing bracket (10). An alarm (14) and a power supply component (15) are installed on the installation component (16). A binding component (19) is installed on the outer side of the fixing bracket (10). The fixing component includes two positioning grooves (201) symmetrically opened on the inner wall of the fixing support (10). The inner wall of the positioning groove (201) is provided with a sliding hole (20), and a clamping component (21) is installed inside the sliding hole (20).

2. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 1, characterized in that: The fixing component (12) includes a mounting groove (122) formed on the surface of the fixing bracket (10). The inner bottom wall of the mounting groove (122) is provided with a threaded groove (121). A mounting plate (123) is installed inside the mounting groove (122). A fixing bolt (124) is threaded into the mounting plate (123), and the fixing bolt (124) is threaded into the inside of the threaded groove (121).

3. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 2, characterized in that: The monitoring component (13) includes two clamps (131), which are located on the outer and inner sides of the disposable treatment towel (18), respectively. The clamp (131) closer to the outer side of the disposable treatment towel (18) is fixedly connected to the mounting plate (123). The outer sides of the two mounting plates (123) are symmetrically fixedly connected to a connecting plate (133) and a connecting plate (135), and the connecting plate (133) and the connecting plate (135) are hinged together. A first spring (134) is fixedly connected between the two clamps (131). A metal sheet (132) is fixedly connected to the opposite side of the two clamps (131). A blood seepage sensing strip (22) is installed between the metal sheet (132) away from the fixed support (10) and the disposable treatment towel (18).

4. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 3, characterized in that: The mounting assembly (16) includes two slots (161) symmetrically opened on the surface of the fixed support (10), with a rod (162) inserted into the inside of the slot (161) and a cross plate (163) fixedly connected to the outside of the rod (162).

5. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 4, characterized in that: The limiting component (17) includes a cylinder (171) and a groove (175). The top of the mounting plate (123) is fixedly connected to the cylinder (171). The outer side of the fixing support (10) is provided with a groove (175). A limiting block (176) is installed inside the groove (175). A circular plate (174) is slidably connected inside the cylinder (171). A pull rod (173) is slidably inserted at the middle of the top of the cylinder (171). The bottom end of the pull rod (173) is fixedly connected to the circular plate (174). A second spring (172) is sleeved on the outer side of the pull rod (173).

6. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 5, characterized in that: The top end of the limiting block (176) passes through the mounting plate (123) and is fixedly connected to the bottom end face of the circular plate (174). The two ends of the second spring (172) are fixedly connected to the inner top wall of the circular plate (174) and the cylinder (171), respectively.

7. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 6, characterized in that: The power supply assembly (15) includes a battery compartment (152) fixedly connected to the top of the mounting plate (123). Multiple limiting plates (153) are symmetrically fixedly connected inside the battery compartment (152). A battery (154) is installed between the multiple limiting plates (153). A cover plate (151) is installed on the top of the battery compartment (152).

8. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 7, characterized in that: The binding assembly (19) includes a barbed patch (191) and a binding strap (192). The binding strap (192) and the barbed patch (191) are fixedly connected to the front and rear sides of the outer wall of the fixing support (10), respectively. A round barbed patch (193) is fixedly connected to the inner side of the binding strap (192).

9. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 8, characterized in that: The clamping assembly (21) includes a lead screw (212) and a slide rod (213). The top of the fixed support (10) is rotatably connected to the lead screw (212). The outer side of the lead screw (212) is threaded with a fixing bracket (211). The slide rod (213) is slidably inserted into the inside of the sliding hole (20). The bottom end of the slide rod (213) is fixedly connected to a clamping plate (214).

10. The hemodialysis arteriovenous fistula bleeding monitoring device according to claim 9, characterized in that: The fixing frame (211) is arranged in the shape of an "I" and the top end of the slide rod (213) is fixedly connected to the fixing frame (211).

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