Medical hemostatic sponge set facilitating accurate extraction

The design of the elastic mesh and connecting block solves the problem of the difficulty in accurately removing traditional hemostatic sponges, and realizes the stable storage and convenient removal of polyvinyl alcohol sponge particles. It can adapt to the hemostatic needs of different wound shapes and depths, improve the hemostatic effect and reduce the risk of residue during removal.

CN224369905UActive Publication Date: 2026-06-19BEIJING YINGJIA MEDICAL MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING YINGJIA MEDICAL MATERIAL CO LTD
Filing Date
2025-04-16
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional hemostatic sponges are difficult to remove precisely during use, are prone to leaving residues, and may cause secondary damage to the wound. Furthermore, the hemostatic drugs filled with airbags do not have a good fixation effect.

Method used

The device features an elastic mesh pocket design containing polyvinyl alcohol sponge particles. It is secured by the cooperation of first and second connecting blocks, locking blocks, ball bearings, and springs. Combined with the design of threaded posts and connecting frames, it enables flexible control and complete removal of the elastic mesh pocket.

Benefits of technology

It achieves stable sealing and convenient removal of polyvinyl alcohol sponge particles, adapting to the hemostasis needs of different wound shapes and depths, improving the hemostatic effect and reducing the risk of residue during removal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hemostatic sponge, disclose a kind of medical hemostatic sponge suit convenient to accurate extraction, including elastic mesh bag, the inside of the elastic mesh bag is provided with a plurality of polyvinyl alcohol sponge particles, the inside of the elastic mesh bag is provided with first connecting block, the inside of the elastic mesh bag is provided with second connecting block, the inside fixedly connected with clamping block of first connecting block, the outer wall sliding connection of clamping block is in the inside of second connecting block, the outer wall sliding connection of clamping block has ball, the outer wall fixedly connected with first spring of ball, the outer wall of the elastic mesh bag is provided with connecting assembly. In the utility model, push first connecting block and second connecting block, by the cooperation of clamping block, ball and first spring, polyvinyl alcohol sponge particle is sealed, reaches the effect that fixed design is convenient to take out elastic mesh bag and polyvinyl alcohol sponge particle simultaneously, simultaneously through the effect that elastic mesh bag elasticity design adapts to the different shape of patient's wound.
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Description

Technical Field

[0001] This utility model relates to the field of hemostatic sponge technology, and in particular to a medical hemostatic sponge kit that is easy to remove precisely. Background Technology

[0002] Hemostatic sponges are polymeric materials used for medical hemostasis, characterized by their fine, porous structure and positive charge. They rapidly absorb water from the blood, adhere to and aggregate with platelets to form a thrombus, thus sealing the wound and activating clotting factors to promote blood coagulation and achieve hemostasis. A medical hemostatic sponge kit designed for precise removal is an innovative medical device aimed at solving the problems of traditional hemostatic sponges, such as difficulty in precise removal and the tendency for residue to remain. Traditional hemostatic sponges are prone to leaving residue during removal, potentially causing secondary damage to the wound; therefore, a medical hemostatic sponge kit that facilitates precise removal is used.

[0003] A search revealed Chinese patent publication number CN203400177U, which discloses a gynecological intrauterine hemostatic device including a pre-positioned balloon. The pre-positioned balloon is connected to a pressure balloon via a connecting tube. One end of the connecting tube extends into the pre-positioned balloon, and a pressure gauge and switch are connected to the pressure balloon port. The end of the connecting tube extending into the pre-positioned balloon has an arc-shaped tip and is engraved with graduations. The surface of the pre-positioned balloon is covered with folds, and a sponge layer is attached to the outside of the pre-positioned balloon. A drug-filled ring is connected to the outside of the pre-positioned balloon, and the drug-filled ring has several micropores filled with hemostatic drugs. The end of the connecting tube extending into the pre-positioned balloon has several circumferentially distributed openings.

[0004] In the aforementioned utility model, this gynecological intrauterine hemostatic device, due to its structure, connects a drug-filled ring to the outside of the balloon. When the switch is turned on, the balloon is inflated, and according to the pressure gauge reading, it is inflated to a suitable pressure for compression hemostasis. Simultaneously, the hemostatic drug filled in the drug-filled ring seeps into the bleeding wound through micropores, achieving hemostasis through medication. The connecting tube is graduated to easily monitor the extent of insertion into the body. The surface of the pre-positioned balloon is covered with pleats, allowing for greater contact with the bleeding site and absorbing more blood and other fluids at once. The pressure is evenly distributed within the uterine cavity, reducing the likelihood of dead space. It is convenient and easy to operate, enabling patients to stop bleeding quickly, receive timely rescue, and escape danger. However, in actual use, the balloon may not effectively fix the filled hemostatic drug, and residue may remain upon removal due to blood absorption and expansion. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a medical hemostatic sponge kit that is easy to remove precisely. It aims to improve the problem that traditional airbags do not have a good fixation effect on the hemostatic drugs they are filled with, and that they are prone to swelling due to blood absorption, resulting in residues when removed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a medical hemostatic sponge set for easy and precise removal, comprising an elastic mesh pouch, wherein multiple polyvinyl alcohol sponge particles are disposed inside the elastic mesh pouch, a first connecting block is disposed inside the elastic mesh pouch, a second connecting block is disposed inside the elastic mesh pouch, the outer wall of the first connecting block is slidably connected to the outer wall of the second connecting block, a locking block is fixedly connected inside the first connecting block, the outer wall of the locking block is slidably connected to the outer wall of the locking block, the outer wall of the ball is slidably connected to the outer wall of the ball is slidably connected to the inner wall of the second connecting block, a first spring is fixedly connected to the outer wall of the ball, the outer wall of the first spring is fixedly connected to the inner wall of the second connecting block, and a connecting component is disposed on the outer wall of the elastic mesh pouch.

[0007] Through the above technical solution: the elastic net bag has good elasticity and strength, can adapt to different shapes, and will not break after the polyvinyl alcohol sponge particles absorb blood and expand. By restricting the position of the first connecting block and the second connecting block, the polyvinyl alcohol sponge particles can be prevented from falling off during use. The first connecting block and the second connecting block can be limited by the limiting effect of the ball bearing on the locking block.

[0008] As a further description of the above technical solution:

[0009] The connecting assembly includes a connecting plate, the outer wall of which is fixedly connected to the outer wall of the elastic mesh bag, and a connecting rod is fixedly connected to the upper surface of the connecting plate.

[0010] Through the above technical solution, the connecting plate serves to connect the elastic net bag and the connecting rod, allowing the elastic net bag to slide synchronously through the sliding of the connecting rod.

[0011] As a further description of the above technical solution:

[0012] A fixing plate is fixedly connected to the upper surface of the connecting rod, and a syringe shell is slidably connected to the outer wall of the fixing plate. The outer wall of the connecting plate is slidably connected to the inside of the syringe shell.

[0013] Through the above technical solution: the fixing plate plays a role in fixing the connecting rod. The fixing plate slides inside the syringe shell and can provide stable support for the sliding of the connecting rod, so that it can slide stably.

[0014] As a further description of the above technical solution:

[0015] A fixing frame is fixedly connected to the upper surface of the syringe shell, and a threaded column is rotatably connected inside the fixing frame.

[0016] The above technical solution involves fixing the bracket to the upper surface of the syringe shell, which provides support for the rotation of the threaded column when it rotates.

[0017] As a further description of the above technical solution:

[0018] A rotating block is fixedly connected to the upper surface of the threaded column, and a connecting frame is threadedly connected inside the threaded column.

[0019] The above technical solution involves fixing the rotating block to the upper surface of the threaded column. When the rotating block is rotated, it will simultaneously drive the threaded column to rotate. Through the action of the thread, the connecting frame can slide by rotating the threaded column.

[0020] As a further description of the above technical solution:

[0021] A fixing cylinder is fixedly connected to the lower surface of the connecting frame. The lower surface of the fixing cylinder is fixedly connected to the upper surface of the fixing plate. The internal thread of the fixing cylinder is connected to the outer wall of the threaded column. The outer wall of the fixing cylinder is slidably connected to the inside of the fixing frame.

[0022] With the above technical solution: the fixed cylinder is fixed on the lower surface of the connecting frame. When the threaded column rotates, the connecting frame and the fixed cylinder will slide at the same time. At the same time, the fixed frame also plays a supporting and limiting role in the sliding of the fixed cylinder.

[0023] As a further description of the above technical solution:

[0024] The connecting frame has a support column that is slidably connected inside, and the outer wall of the support column is fixedly connected inside the fixed frame.

[0025] With the above technical solution: the support column is fixed inside the fixed frame, and the connecting frame will slide through the support column. The support column plays a limiting role in the sliding of the connecting frame, so that the connecting frame can only slide in the vertical direction.

[0026] As a further description of the above technical solution:

[0027] A second spring is fixedly connected to the upper surface of the connecting frame, and the outer wall of the second spring is fixedly connected to the inner top wall of the fixed frame.

[0028] The above technical solution involves a second spring positioned between the connecting frame and the fixed frame. The sliding of the connecting frame can compress or stretch the second spring, which provides elastic support and allows the threaded column to rotate stably.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, by pushing the first connecting block and the second connecting block, the ball bearing and the first spring cooperate to fix the first connecting block and the second connecting block by locking the ball bearing in the inner wall of the locking block, thus sealing the polyvinyl alcohol sponge particles. The fixed design facilitates the simultaneous removal of the elastic net bag and the polyvinyl alcohol sponge particles. At the same time, the elastic design of the elastic net bag adapts to different shapes of the patient's wound.

[0031] 2. In this utility model, the rotating block drives the threaded column to rotate. Through the cooperation between the connecting frame, the fixed cylinder, the support column and the second spring, the extension distance of the elastic net bag can be flexibly controlled to achieve the effect of hemostasis for patients with different wound depths. After hemostasis is completed, the elastic net bag and polyvinyl alcohol sponge particles can be easily removed as a whole. Attached Figure Description

[0032] Figure 1 A perspective view of a medical hemostatic sponge kit for easy and precise removal according to this utility model;

[0033] Figure 2 This is a partial structural diagram of the elastic mesh pocket of a medical hemostatic sponge kit that facilitates precise removal, as proposed in this utility model.

[0034] Figure 3 A cross-sectional schematic diagram of the internal structure of the second connecting block of a medical hemostatic sponge kit that is easy to remove precisely, as proposed in this utility model;

[0035] Figure 4 A cross-sectional schematic diagram of the internal structure of the syringe shell of a medical hemostatic sponge kit for easy and precise removal, as proposed in this utility model.

[0036] Figure 5 This is a partial structural diagram of the threaded column of a medical hemostatic sponge kit that is easy to remove precisely, as proposed in this utility model.

[0037] Legend:

[0038] 1. Elastic mesh bag; 2. Polyvinyl alcohol sponge particles; 3. First connecting block; 4. Second connecting block; 5. Locking block; 6. Ball bearing; 7. First spring; 8. Connecting assembly; 801. Connecting plate; 802. Connecting rod; 9. Fixing plate; 10. Syringe housing; 11. Fixing frame; 12. Threaded column; 13. Rotating block; 14. Connecting frame; 15. Fixing cylinder; 16. Support column; 17. Second spring. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides: a medical hemostatic sponge set for easy and precise removal, including an elastic mesh bag 1, a plurality of polyvinyl alcohol sponge particles 2 disposed inside the elastic mesh bag 1, a first connecting block 3 disposed inside the elastic mesh bag 1, a second connecting block 4 disposed inside the elastic mesh bag 1, the outer wall of the first connecting block 3 being slidably connected to the outer wall of the second connecting block 4, a locking block 5 being fixedly connected inside the first connecting block 3, the outer wall of the locking block 5 being slidably connected to the inner wall of the second connecting block 4, a ball bearing 6 being slidably connected to the outer wall of the locking block 5, the outer wall of the ball bearing 6 being slidably connected to the inner wall of the second connecting block 4, a first spring 7 being fixedly connected to the outer wall of the ball bearing 6, the outer wall of the first spring 7 being fixedly connected to the inner wall of the second connecting block 4, and a connecting component 8 disposed on the outer wall of the elastic mesh bag 1;

[0041] Specifically, the elastic net bag 1 is made of spandex and polyester, possessing good elasticity and strength. It can hold 60-70 polyvinyl alcohol sponge particles 2, and can be adjusted according to the size of the syringe shell 10 or the different shapes of the patient's wound. Furthermore, the polyvinyl alcohol sponge particles 2 will not break after absorbing blood and expanding. The polyvinyl alcohol sponge particles 2 have extremely strong water absorption capacity, quickly absorbing wound exudate, blood, and other bodily fluids, keeping the wound dry, helping to prevent wound infection, and promoting wound healing. The elastic net bag 1 supports the first connecting block 3 and the second connecting block 4. The first connecting block 3 fixes the locking block 5. When the first connecting blocks 3 and the second connecting blocks 4 on both sides approach each other, the locking block 5 slides into the interior of the second connecting block 4. The second connecting block 4 supports the ball bearings 6 on both sides. The ball bearing 6 provides support. When the ball bearing 6 is squeezed by the locking block 5, it exerts a squeezing force on the first springs 7 on both sides. The locking block 5 has a slot that can fully engage with the ball bearing 6. When the ball bearing 6 is locked in the inner wall of the locking block 5, it no longer exerts a squeezing force on the first spring 7. The first spring 7 will push the ball bearing 6 back to lock the locking block 5 through the rebound action, thus sealing the polyvinyl alcohol sponge particles 2 inside the elastic net bag 1 to prevent them from scattering during the hemostasis process. The elastic net bag 1 containing the polyvinyl alcohol sponge particles 2 is injected into the uterus. After absorbing blood, the polyvinyl alcohol sponge particles 2 expand according to the biological structure, compressing the wound surface without any blind spots. After the wound surface heals, physiological saline is injected to fully soak the polyvinyl alcohol sponge particles 2. After they are basically separated from the wound surface, the elastic net bag 1 is pulled to completely remove the polyvinyl alcohol sponge particles 2.

[0042] Reference Figure 1 The connecting component 8 includes a connecting plate 801, the outer wall of which is fixedly connected to the outer wall of the elastic net bag 1, and a connecting rod 802 is fixedly connected to the upper surface of the connecting plate 801.

[0043] Specifically, the connecting plate 801 provides support and fixation for the elastic net bag 1, and the connecting rod 802 provides support for the connecting plate 801.

[0044] Reference Figure 1 , Figure 4 and Figure 5A fixing plate 9 is fixedly connected to the upper surface of the connecting rod 802. A syringe housing 10 is slidably connected to the outer wall of the fixing plate 9. The outer wall of the connecting plate 801 is slidably connected to the inside of the syringe housing 10. A fixing frame 11 is fixedly connected to the upper surface of the syringe housing 10. A threaded column 12 is rotatably connected to the inside of the fixing frame 11. A rotating block 13 is fixedly connected to the upper surface of the threaded column 12. A connecting frame 14 is threadedly connected to the inside of the threaded column 12. A fixing cylinder 15 is fixedly connected to the lower surface of the connecting frame 14. The lower surface of the fixing cylinder 15 is fixedly connected to the upper surface of the fixing plate 9. The inside of the fixing cylinder 15 is threadedly connected to the outer wall of the threaded column 12. The outer wall of the fixing cylinder 15 is slidably connected to the inside of the fixing frame 11. A support column 16 is slidably connected to the inside of the connecting frame 14. The outer wall of the support column 16 is fixedly connected to the inside of the fixing frame 11. A second spring 17 is fixedly connected to the upper surface of the connecting frame 14. The outer wall of the second spring 17 is fixedly connected to the inner top wall of the fixing frame 11.

[0045] Specifically, the fixing plate 9 supports and fixes the connecting rod 802. The fixing plate 9 slides inside the syringe housing 10 and can drive the elastic mesh bag 1 to slide synchronously through the connecting rod 802. The syringe housing 10 fixes the fixing frame 11, the fixing frame 11 supports the threaded column 12, and the threaded column 12 fixes the rotating block 13. The rotation of the rotating block 13 can cause the threaded column 12 to rotate. The connecting frame 14 fixes the fixing cylinder 15. The rotation of the threaded column 12 can cause the connecting frame 14 and the fixing cylinder 15 to slide synchronously. The support column 16 is fixed inside the fixing frame 11 and provides limiting support for the sliding of the connecting frame 14. The second spring 17 is also compressed due to the sliding of the connecting frame 14. The second spring 17 can maintain a certain preload to ensure that the threaded column 12 remains stable during rotation. The sliding of the fixing cylinder 15 can drive the elastic mesh bag 1 to slide through the connecting plate 801, the connecting rod 802, and the fixing plate 9, thereby controlling the extension length of the elastic mesh bag 1.

[0046] Working principle: When this kit is needed, multiple polyvinyl alcohol sponge particles 2 are placed inside the elastic mesh bag 1. Pushing the first connecting block 3 and the second connecting block 4 causes the first connecting block 3 to drive the locking block 5 into the interior of the second connecting block 4. When the locking block 5 slides into the interior of the second connecting block 4, it will squeeze the ball bearings 6 on both sides, causing them to slide inside the second connecting block 4. When the ball bearings 6 slide, they will squeeze the first spring 7. When the locking block 5 and the ball bearings 6 are fully in contact and engaged, the rebound action of the first spring 7 can push the ball bearings 6 in the opposite direction to lock them in the inner wall of the locking block 5. The first connecting block 3 and the second connecting block 4 are used to seal and fix the polyvinyl alcohol sponge particles 2 inside the elastic mesh bag 1, achieving a fixed design that allows for the simultaneous removal of the elastic mesh bag 1 and the polyvinyl alcohol sponge particles 2. At the same time, the elastic design of the elastic mesh bag 1 adapts to different shapes of the patient's wound, improving the hemostatic effect.

[0047] When it is necessary to stop bleeding from a patient's wound, simply rotate the rotating block 13 to rotate the threaded column 12. When the threaded column 12 rotates, it simultaneously drives the connecting frame 14 and the fixing cylinder 15 to slide. When the connecting frame 14 slides, it stretches or compresses the second spring 17. The fixing cylinder 15 drives the fixing plate 9 to slide inside the syringe housing 10. When the fixing plate 9 slides, it drives the connecting rod 802 and the connecting plate 801 to slide simultaneously. The sliding of the connecting plate 801 can drive the elastic mesh bag 1 to slide out of the syringe housing 10. The extension height of the elastic mesh bag 1 can be flexibly adjusted according to the different wound depths of the patient. The elastic mesh bag 1 and the polyethylene The polyvinyl alcohol sponge particles 2 absorb blood and stop bleeding from the wound. Rotating the rotating block 13 in the opposite direction will cause the elastic net bag 1 to slide in the opposite direction, achieving the effect of hemostasis for different wound depths. After hemostasis is completed, the elastic net bag 1 and polyvinyl alcohol sponge particles 2 can be easily removed as a whole. This set not only achieves a fixed design that makes it easy to remove the elastic net bag 1 and polyvinyl alcohol sponge particles 2 at the same time, but also adapts to different wound shapes through the elastic design of the elastic net bag 1, improving the hemostasis effect. It can also achieve the effect of hemostasis for different wound depths, and after hemostasis is completed, the elastic net bag 1 and polyvinyl alcohol sponge particles 2 can be easily removed as a whole.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medical hemostatic sponge kit facilitating accurate extraction, comprising an elastic mesh bag (1), characterized in that: The elastic net bag (1) is provided with a plurality of polyvinyl alcohol sponge particles (2) inside. The elastic net bag (1) is provided with a first connecting block (3) inside. The elastic net bag (1) is provided with a second connecting block (4) inside. The outer wall of the first connecting block (3) is slidably connected to the outer wall of the second connecting block (4). The first connecting block (3) is fixedly connected with a locking block (5) inside. The outer wall of the locking block (5) is slidably connected to the inner wall of the second connecting block (4). The outer wall of the locking block (5) is slidably connected to a ball (6). The outer wall of the ball (6) is slidably connected to the inner wall of the second connecting block (4). The outer wall of the ball (6) is fixedly connected to a first spring (7). The outer wall of the first spring (7) is fixedly connected to the inner wall of the second connecting block (4). The outer wall of the elastic net bag (1) is provided with a connecting component (8).

2. The medical hemostatic sponge kit for easy and accurate removal according to claim 1, characterized in that: The connecting assembly (8) includes a connecting plate (801), the outer wall of which is fixedly connected to the outer wall of the elastic net bag (1), and a connecting rod (802) is fixedly connected to the upper surface of the connecting plate (801).

3. The medical hemostatic sponge kit for easy and accurate removal according to claim 2, characterized in that: A fixing plate (9) is fixedly connected to the upper surface of the connecting rod (802), and a syringe shell (10) is slidably connected to the outer wall of the fixing plate (9). The outer wall of the connecting plate (801) is slidably connected to the inside of the syringe shell (10).

4. The medical hemostatic sponge kit for easy and accurate removal according to claim 3, characterized in that: A fixing frame (11) is fixedly connected to the upper surface of the syringe shell (10), and a threaded column (12) is rotatably connected inside the fixing frame (11).

5. A medical hemostatic sponge kit for easy and precise removal according to claim 4, characterized in that: The upper surface of the threaded column (12) is fixedly connected to a rotating block (13), and the internal thread of the threaded column (12) is connected to a connecting frame (14).

6. The medical hemostatic sponge kit for easy and accurate removal according to claim 5, characterized in that: The lower surface of the connecting frame (14) is fixedly connected to a fixing cylinder (15), the lower surface of the fixing cylinder (15) is fixedly connected to the upper surface of the fixing plate (9), the inner thread of the fixing cylinder (15) is connected to the outer wall of the threaded column (12), and the outer wall of the fixing cylinder (15) is slidably connected to the inside of the fixing frame (11).

7. The medical hemostatic sponge kit of claim 5, wherein: The connecting frame (14) has a sliding connection to a support column (16), and the outer wall of the support column (16) is fixedly connected to the inside of the fixing frame (11).

8. The medical hemostatic sponge kit of claim 7, wherein: The upper surface of the connecting frame (14) is fixedly connected to a second spring (17), and the outer wall of the second spring (17) is fixedly connected to the inner top wall of the fixing frame (11).