Chitosan fiber coated rapid radial artery hemostat

Abstract

The utility model belongs to the technical field of radial artery hemostasis, and particularly relates to a rapid radial artery hemostat coated with chitosan fibers. The device comprises a bottom plate, a mounting block vertically penetrates through the bottom plate, a threaded sleeve is vertically fixed to the top of the mounting block, a screw rod in threaded fit with the threaded sleeve vertically penetrates through the threaded sleeve, a base plate is horizontally fixed to the lower end of the screw rod, and the bottom of the base plate is wrapped with a hemostasis layer used for shortening the hemostasis time of a puncture point. Fixing assemblies for fixing the bottom plate on the wrist of a patient are arranged in the two ends of the bottom plate. According to the utility model, under the action of the fixing component, the bottom plate is fixed on the wrist of a patient, the base plate pushes the hemostatic layer to press a puncture point by rotating the screw rod, and the hemostatic layer is matched with the base plate to press the puncture point, so that the pressing time required for hemostasis is greatly shortened, the discomfort of the patient is relieved, and short-term radial artery occlusion is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of radial artery hemostasis, in particular to a quick radial artery hemostat coated with chitosan fibers. Background Art

[0002] The radial artery has become the default access site for coronary angiography and interventional procedures. Both European and American guidelines endorse a “radial artery first” strategy, and the use of the radial artery can reduce mortality, major adverse cardiovascular events, access site-related major bleeding, and the risk of vascular complications compared with the femoral artery. The radial artery hemostat is a common medical device used to control radial artery bleeding during surgery. The radial artery hemostat works by controlling blood flow by applying pressure to the artery. During the procedure, the doctor punctures the patient's wrist, inserts a catheter into the patient's radial artery, and then secures the hemostatic device of the radial artery hemostat at the puncture site. The doctor can then gently remove the catheter, and the hemostatic device of the radial artery hemostat will apply appropriate pressure on the puncture site to control bleeding.

[0003] At present, the hemostat in the prior art is composed of a support plate, a nut, a compression pad, a T-shaped pressure block, a silicone pad, a buckle, a fixing belt, and a protective film. When in use, the nut can be rotated to adjust the compression strength of the device, and the puncture point is compressed by the pressure block and the compression pad to stop bleeding. However, it takes at least 6 hours to compress the puncture point using the above technology, which is prone to swelling due to poor venous return, pressure blisters, and even radial artery occlusion, increasing the patient's pain. Utility Model Content

[0004] The utility model aims to provide a rapid radial artery hemostat coated with chitosan fibers, which has a simple structure and greatly shortens the compression time required for hemostasis.

[0005] The chitosan fiber-coated rapid radial artery hemostat comprises a base plate, a mounting block is vertically inserted into the base plate, a threaded sleeve is vertically fixed on the top of the mounting block, a screw threadedly matched with the threaded sleeve is vertically inserted into the threaded sleeve, a pad is horizontally fixed to the lower end of the screw, a hemostatic layer for shortening the hemostasis time of the puncture point is wrapped at the bottom of the pad, and fixing components for fixing the base plate to the patient's wrist are arranged at both ends of the base plate.

[0006] Furthermore, the hemostatic layer is made of chitosan fibers.

[0007] Furthermore, the pad is made of a transparent material.

[0008] Furthermore, a hemostatic marking inner circle is arranged on the pad, and a hemostatic marking outer circle is arranged outside the hemostatic marking inner circle, and the centers of the two marking circles coincide with the central axis of the screw.

[0009] Furthermore, the diameter of the inner circle of the hemostatic mark is 1 cm-1.2 cm, and the diameter of the outer circle of the hemostatic mark is 2 cm-2.2 cm.

[0010] Furthermore, a support block is fixed to the right end of the bottom of the base plate.

[0011] Furthermore, the fixing assembly includes a wristband buckle, which is fixed to the right end of the base plate, and a pressure wristband is fixed to the left end of the base plate, and the movable end of the pressure wristband is fixed to the wristband buckle.

[0012] Furthermore, a medicine bin for storing chitosan powder is provided at the bottom of the pad, a medicine drop hole communicating with the medicine bin is provided on the hemostatic layer, and isolation paper is horizontally arranged between the pad and the hemostatic layer.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the bottom plate is fixed on the patient's wrist under the action of the fixing component, and the screw is rotated to make the pad push the hemostatic layer to press on the puncture point. The hemostatic layer cooperates with the pad to press on the puncture point, which greatly shortens the compression time required for hemostasis, reduces the patient's discomfort and prevents short-term radial artery occlusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Bottom view of

[0017] Figure 3 for Figure 1 Right side view;

[0018] Figure 4 for Figure 1 A top view of the center pad;

[0019] Figure 5 It is a three-dimensional diagram of the utility model;

[0020] Figure 6 This is a schematic structural diagram of another embodiment of the utility model;

[0021] Figure 7 for Figure 6 Bottom view of the middle pad;

[0022] Figure 8 for Figure 6 A top view of the isolation paper;

[0023] Fig. 9 for Figure 6 Bottom view of the middle hemostasis layer

[0024] The names of the components in the figure are: 1. Base plate; 2. Pad; 3. Mounting block; 4. Threaded sleeve; 5. Screw; 6. Hemostatic layer; 7. Support block; 8. Wristband buckle; 9. Pressure wristband; 10. Hemostatic marking outer ring; 11. Hemostatic marking inner ring; 12. Medicine chamber; 13. Isolation paper; 14. Medicine drop hole. DETAILED DESCRIPTION

[0025] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0026] Example 1

[0027] The chitosan fiber-coated rapid radial artery hemostat described in this embodiment is as follows: Figures 1 to 5 As shown, it includes a bottom plate 1, a mounting block 3 is vertically installed in the bottom plate 1, a through hole communicating with each other from top to bottom is opened on the bottom plate 1, and the mounting block 3 is vertically installed in the through hole;

[0028] A threaded sleeve 4 is vertically fixed on the top of the mounting block 3, and the lower end of the threaded sleeve 4 is fixed on the top of the mounting block 3;

[0029] A screw rod 5 is vertically installed in the threaded sleeve 4 and is threadedly matched therewith. The screw rod 5 is vertically installed in the threaded sleeve 4. The threaded sleeve 4 is held and the screw rod 5 is rotated to control the screw rod 5 to move up and down.

[0030] A pad 2 is horizontally fixed to the lower end of the screw 5. When the screw 5 moves downward, it drives the pad 2 to move toward the puncture point to compress the puncture point and stop bleeding.

[0031] The bottom of the pad 2 is wrapped with a hemostatic layer 6 for shortening the hemostasis time of the puncture point. In clinical practice, the hemostatic layer 6 is generally pasted to the bottom of the pad 2 by a medical adhesive patch. The hemostatic layer 6 greatly shortens the compression time required for the puncture point, reduces the patient's discomfort and prevents short-term radial artery occlusion.

[0032] A wristband buckle 8 is fixed to the right end of the base plate 1, and a pressure wristband 9 is fixed to the left end of the base plate 1. The movable end of the pressure wristband 9 is fixed to the wristband buckle 8. The base plate 1 is placed above the patient's wrist, and the movable end of the pressure wristband 9 is held and passed around the patient's wrist. Then, the movable end of the pressure wristband 9 is fixed to the wristband buckle 8 to fix the base plate 1 to the patient's wrist. This paragraph of text as a whole constitutes a fixing component for fixing the base plate 1 to the patient's wrist. Of course, in the fixing component, the pressure wristband 9 is made of a cotton wristband with a certain width. During the compression hemostasis process, the pad 2 and the pressure wristband 9 jointly restrain the patient's wrist. The cotton pressure wristband 9 is soft in texture and has good air permeability, which can improve the patient's comfort during hemostasis.

[0033] When this embodiment is used, the base plate 1 is fixed on the patient's wrist through the fixing assembly, the pad 2 is facing the puncture point, the threaded sleeve 4 is held, and the screw 5 is rotated. Under the cooperation of the threads of the threaded sleeve 4 and the screw 5, the lower end of the screw 5 is driven to move downward, and the pad 2 is controlled to press on the puncture point. The hemostatic layer 6 cooperates with the pad 2 to press on the puncture point, which greatly shortens the compression time required for hemostasis, reduces the patient's discomfort and prevents short-term radial artery occlusion.

[0034] Example 2

[0035] This embodiment further illustrates the technology. Figure 1 As shown, the hemostatic layer 6 is made of chitosan fiber. Chitosan fiber is a prior art. Chitosan has good biocompatibility and can be biodegraded. The degradation products are non-toxic. It has antibacterial, hemostatic, and wound healing effects. Chitosan fiber is a functional biomass with a certain strength prepared by a series of spinning methods using chitosan as the main raw material. Applying chitosan fiber to the radial artery puncture site can significantly shorten the radial artery hemostasis time. According to clinical manifestations, most patients can stop bleeding at the puncture point within 1 hour.

[0036] Example 3

[0037] This embodiment further illustrates the technology. Figure 1 As shown, the pad 2 is made of a transparent material, and the pad 2 is made of a transparent silicone pad. The transparent pad 2 is conducive to medical staff to visually observe the hemostasis of the puncture point, so that doctors can take targeted measures according to the hemostasis status to ensure successful hemostasis of the puncture point.

[0038] The pad 2 is provided with an inner hemostatic marking circle 11, and an outer hemostatic marking circle 10 is provided outside the inner hemostatic marking circle 11. The centers of the two marking circles coincide with the central axis of the screw 5, and the centers of the two marking circles coincide with each other and coincide with the geometric center of the pad 2. The hemostatic status of the patient's puncture point is judged by the two marking circles.

[0039] In this embodiment, when the pad 2 is pressed on the puncture point, the blood soaks the hemostatic layer 6 and spreads outward from the puncture point. When the blood is aligned with the inner circle 11 of the hemostatic mark, it indicates that blood coagulation has begun. When the area of ​​the cotton soaked with blood exceeds the outer circle 10 of the hemostatic mark, it indicates that blood coagulation has failed or is not in place, and medical staff are required to take timely measures for this state.

[0040] The diameter of the hemostatic marking inner circle 11 is 1 cm-1.2 cm. The diameter of the hemostatic marking inner circle 11 is used to prompt doctors to judge the beginning of blood coagulation. The diameter of the hemostatic marking inner circle 11 can be selected to be any length between 1 cm, 1.2 cm, 1.1 cm, and 1 cm-1.2 cm.

[0041] The diameter of the hemostatic marking outer circle 10 is 2 cm-2.2 cm. The diameter of the hemostatic marking outer circle 10 is used to prompt the doctor to judge whether the coagulation is successful. The diameter of the hemostatic marking outer circle 10 can be selected to any length between 2 cm, 2.2 cm, 2.1 cm, and 2 cm-2.2 cm.

[0042] Example 4

[0043] This embodiment further illustrates the technology. Figure 1 and Figure 5 As shown, a support block 7 is fixed to the right end of the bottom of the base plate 1, the upper end of the support block 7 is fixed to the bottom of the base plate 1, and the lower end of the support block 7 is used to rest on the patient's wrist. Because the human wrist is an irregular oval shape, the support block 7 is used to rest on the patient's wrist to avoid displacement of the pad 2 during compression, thereby improving the success rate of hemostasis.

[0044] Example 5

[0045] This embodiment further illustrates the technology. Figures 6 to 9 As shown, a medicine bin 12 for storing chitosan powder is provided at the bottom of the pad 2, and the chitosan powder is used together with the chitosan fiber to stop bleeding at the puncture point, thereby further shortening the hemostatic time of the puncture point, improving the hemostatic effect, and reducing the compression time of the puncture point;

[0046] The hemostatic layer 6 is provided with a medicine drop hole 14 communicating with the medicine bin 12. The chitosan powder in the medicine bin 12 passes through the medicine drop hole 14 of the hemostatic layer 6 and covers the puncture point, thereby cooperating with the hemostatic layer 6 to stop bleeding at the puncture point.

[0047] A separation paper 13 is horizontally arranged between the pad 2 and the hemostatic layer 6. The chitosan powder is stored in the medicine bin 12 through the separation paper 13. When it is needed, the separation paper 13 is pulled out and the chitosan powder covers the puncture point.

[0048] When this embodiment is used, the screw 5 is rotated to the highest position, and the hemostatic layer 6 is fixed at the puncture point by the fixing assembly. The doctor slowly pulls out the sheath, and then pulls out the isolation paper 13. The chitosan powder stored in the medicine bin 12 covers the puncture point and combines with the bleeding at the puncture point. When the blood is soaked into the hemostatic marking inner circle 11, the chitosan powder is fully saturated, and chemical hemostasis begins. Then the screw 5 is gradually tightened to make the pad 2 push the hemostatic layer 6 to press the patient's puncture site. By observing the hemostatic marking circle on the pad 2, when the blood soaking circle on the hemostatic layer 6 is no longer expanding, the hemostatic pressure is reached, thereby controlling the bleeding. The chitosan powder cooperates with the pad 2 and the hemostatic layer 6 to press the puncture point, and hemostasis is performed simultaneously at both the chemical and physical levels, thereby minimizing the time required for hemostasis at the puncture point and reducing the patient's pain and the occurrence of complications.

Claims

1. A chitosan fiber-coated rapid radial artery hemostat, comprising a base plate (1), a mounting block (3) vertically inserted into the base plate (1), characterized in that: A threaded sleeve (4) is vertically fixed on the top of the mounting block (3), a screw (5) threadedly matched therewith is vertically inserted into the threaded sleeve (4), a pad (2) is horizontally fixed to the lower end of the screw (5), a hemostatic layer (6) for shortening the hemostasis time of the puncture point is wrapped around the bottom of the pad (2), and fixing components for fixing the bottom plate (1) to the patient's wrist are arranged at both ends of the bottom plate (1); The hemostatic layer (6) is made of chitosan fibers; A medicine bin (12) for storing chitosan powder is provided at the bottom of the pad (2), a medicine drop hole (14) communicating with the medicine bin (12) is provided on the hemostatic layer (6), and isolation paper (13) is horizontally arranged between the pad (2) and the hemostatic layer (6).

2. The chitosan fiber-coated rapid radial artery hemostat according to claim 1, characterized in that: The backing plate (2) is made of a transparent material.

3. The chitosan fiber-coated rapid radial artery hemostat according to claim 2, characterized in that: The pad (2) is provided with an inner hemostatic marking ring (11), and an outer hemostatic marking ring (10) is provided outside the inner hemostatic marking ring (11), and the centers of the two marking rings coincide with the central axis of the screw rod (5).

4. The chitosan fiber-coated rapid radial artery hemostat according to claim 3, characterized in that: The diameter of the inner circle (11) of the hemostatic marker is 1 cm to 1.2 cm, and the diameter of the outer circle (10) of the hemostatic marker is 2 cm to 2.2 cm.

5. The chitosan fiber-coated rapid radial artery hemostat according to claim 1, characterized in that: A support block (7) is fixed to the right end of the bottom of the base plate (1).

6. The chitosan fiber-coated rapid radial artery hemostat according to claim 1, characterized in that: The fixing assembly comprises a wristband buckle (8), the wristband buckle (8) is fixed to the right end of the base plate (1), a pressure wristband (9) is fixed to the left end of the base plate (1), and the movable end of the pressure wristband (9) is fixed to the wristband buckle (8).

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