Hemostatic device

Abstract

The utility model discloses a hemostatic device, this hemostatic device includes: elastic fingerstall, elastic fingerstall includes: inner layer finger stall part and outer layer finger stall part, the inner layer finger stall part forms the finger groove, and the finger groove is used for the extension of finger, the outer layer finger stall part is sleeved in the inner layer finger stall part, and the bottom of outer layer finger stall part is connected in the bottom of inner layer finger stall part, and the cavity is formed between the inner layer finger stall part and outer layer finger stall part, and the cavity is used for filling medium, and any one in outer layer finger stall part and inner layer finger stall part is provided with control valve, and control valve communicates with the cavity. Therefore, can realize fast and accurate hemostasis, also can reduce the adhesion of elastic fingerstall and nasal cavity mucosa tissue, also can avoid the secondary injury of elastic fingerstall when taking out from the nasal cavity, has the advantages such as simple operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a hemostatic device. Background Technology

[0002] Following ear, nose, and throat surgeries (such as sinus surgery and tonsillectomy), hemostasis and infection control are crucial aspects of postoperative recovery. However, existing hemostatic materials and techniques are significantly inadequate in terms of hemostatic efficacy and postoperative treatment, failing to meet the clinical need for rapid and convenient hemostasis.

[0003] In the ear, nose, and throat orifices, which are often irregular and uneven channels, traditional hemostatic materials (gauze, sponge) are difficult to deliver precisely to the injured site to provide pressure hemostasis. In addition, there are problems such as secondary damage that can easily be caused by secondary removal.

[0004] In existing technologies, water-filled hemostatic devices are gradually being used in clinical practice, but their design and function still have many drawbacks. Currently, a common method involves filling medical gloves with water, cutting and knotting them along the webbed fingers, and then stuffing them into the openings of the ears, nose, and throat. However, due to the varying structures of the ear, nose, and throat in different individuals, this method has a narrow applicability. Furthermore, it is difficult to deliver the gloves precisely into irregularly curved channels. Additionally, medical gloves are strong but have limited elasticity, resulting in poor hemostasis through pressure, and they also tend to stick to the nasal mucosa. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a hemostatic device that can achieve rapid and precise hemostasis, reduce adhesion between the elastic finger cot and the nasal mucosa, and prevent secondary damage when the elastic finger cot is removed from the nasal cavity. It also has the advantage of simple operation.

[0006] According to an embodiment of the present invention, a hemostatic device includes an elastic finger sleeve, the elastic finger sleeve comprising an inner finger sleeve portion and an outer finger sleeve portion, the inner finger sleeve portion having a finger groove for finger insertion, the outer finger sleeve portion being sleeved on the inner finger sleeve portion, the bottom of the outer finger sleeve portion being connected to the bottom of the inner finger sleeve portion, a cavity being formed between the inner finger sleeve portion and the outer finger sleeve portion for filling with a medium, and a control valve being provided in either the outer finger sleeve portion or the inner finger sleeve portion, the control valve being connected to the cavity.

[0007] Therefore, this hemostatic device can achieve rapid and precise hemostasis, reduce adhesion between the elastic finger cot and the nasal mucosa, and avoid secondary damage when the elastic finger cot is removed from the nasal cavity. It also has the advantage of being easy to operate.

[0008] According to some embodiments of the present invention, the cavity has a connection point, which is disposed on the outer finger sleeve portion, and the connection point is disposed near the bottom of the outer finger sleeve portion relative to the top of the outer finger sleeve portion.

[0009] According to some embodiments of the present invention, the control valve is disposed at the connection point, and the control valve is used to control the opening / closing of the connection between the cavity and the outside world.

[0010] According to some embodiments of this utility model, the control valve is a two-way or three-way adapter plug valve, which is used to connect to a pressurizing device.

[0011] According to some embodiments of this utility model, the two-way valve is either a polycarbonate valve or a stainless steel valve.

[0012] According to some embodiments of the present invention, the adapter plug valve is provided with a connector, which is adapted to be connected to the pressurizing device.

[0013] According to some embodiments of this utility model, the elastic finger sleeve is an integrally molded elastic biocompatible material finger sleeve.

[0014] According to some embodiments of this utility model, the elastic finger sleeve is one of silicone finger sleeve, latex finger sleeve, polyester finger sleeve and polyurethane finger sleeve.

[0015] According to some embodiments of the present invention, the surface of the elastic finger sleeve is provided with at least one of chlorhexidine coating, antibiotic coating, silicone oil coating, hydrogel coating and polyvinylpyrrolidone coating.

[0016] According to some embodiments of the present invention, the hemostatic device further includes: a pressure sensor and a controller, wherein the pressure sensor is disposed in the cavity, and the pressure sensor and the control valve are electrically connected to the controller respectively.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the hemostatic device according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the connection between the elastic finger sleeve and the flexible tube according to an embodiment of the present utility model;

[0021] Figure 3 This is a cross-sectional view of the connection between the elastic finger sleeve and the flexible hose according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure of a hemostatic device according to an embodiment of the present invention, which includes a connector and a pressure device connected together.

[0023] Figure label:

[0024] 100. Hemostatic device;

[0025] 1. Elastic finger sleeve; 11. Inner finger sleeve portion; 12. Outer finger sleeve portion; 13. Finger groove; 14. Cavity;

[0026] 2. Hose; 3. Control valve; 4. Pressurizing device; 5. Connector; 6. Connection point. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0028] The following is for reference. Figures 1-4 Description of a hemostatic device 100 according to an embodiment of the present invention.

[0029] Reference Figures 1-4 As shown, the hemostatic device 100 of this utility model embodiment includes: an elastic finger sleeve 1, the elastic finger sleeve 1 includes: an inner finger sleeve portion 11 and an outer finger sleeve portion 12, the inner finger sleeve portion 11 forms a finger groove 13 for finger insertion, the finger groove 13 is sleeved on the inner finger sleeve portion 11, the bottom of the outer finger sleeve portion 12 is connected to the bottom of the inner finger sleeve portion 11, a cavity 14 is formed between the inner finger sleeve portion 11 and the outer finger sleeve portion 12, the cavity 14 is used to fill a medium, and either the outer finger sleeve portion 12 or the inner finger sleeve portion 11 is provided with a control valve 32, the control valve 32 is connected to the cavity 14.

[0030] Specifically, the elastic finger cot 1 is elastic and can deform elastically under force, thus avoiding damage to the nasal mucosa caused by its hardness. Moreover, the elastic finger cot 1 deforms when subjected to external force and returns to its original shape after the external force is removed. This characteristic allows the elastic finger cot 1 to closely conform to the fine contours of the finger surface, thereby forming an effective seal.

[0031] Furthermore, the elastic finger cot 1 is soft and can gently adapt to the complex structure inside the nasal cavity without applying excessive pressure or causing unnecessary friction. This gentle approach reduces mechanical damage to the sensitive nasal mucosa. Moreover, the smooth surface of the elastic finger cot 1 reduces friction between it and the nasal mucosa, thus minimizing adhesion and preventing secondary damage when removing it from the nasal cavity.

[0032] Furthermore, the elastic finger cot 1 mainly consists of an inner finger cot portion 11 and an outer finger cot portion 12. The inner finger cot portion 11 is located inside the outer finger cot portion 12, and a cavity 14 is formed between the inner finger cot portion 11 and the outer finger cot portion 12. The medium filled in the cavity 14 can be gas or liquid. In this way, the elastic finger cot 1 can form a double-layer hollow structure. The double-layer hollow structure makes the elastic finger cot 1 more flexible, which can further reduce the adhesion between the elastic finger cot 1 and the nasal mucosa tissue, and can also further avoid secondary damage when the elastic finger cot 1 is removed from the nasal cavity. Moreover, the double-layer hollow structure can apply pressure more evenly to the bleeding area, which can avoid poor hemostasis due to insufficient pressure, and can also avoid difficulty in delivering pressure to the injured site due to excessive pressure. By adjusting the internal pressure (such as inflation), precise and uniform pressure support can be achieved for different parts, thereby achieving better hemostasis and rapid hemostasis.

[0033] Furthermore, the medium between the inner finger sleeve 11 and the outer finger sleeve 12 can act as a buffer, reducing direct pressure on the nasal mucosa and thus lowering the risk of nasal mucosal damage. Moreover, even if the outer finger sleeve 12 is damaged, the inner finger sleeve 11 can still maintain its functional integrity, ensuring that the hemostasis process is not affected under finger pressure.

[0034] Furthermore, the elastic finger cot 1 is designed with a double-layered hollow structure, which can isolate external cold air or low temperatures brought by medical devices to a certain extent, thereby helping to maintain a warm environment in the nasal cavity and increasing patient comfort.

[0035] Furthermore, the inner finger sleeve 11 has a finger groove 13 for inserting the finger. When hemostasis is required, the finger groove 13 of the elastic finger sleeve 1 is worn on the index finger, which makes it easier to insert the elastic finger sleeve 1 into the nasal cavity under the guidance of a surgical endoscope.

[0036] Furthermore, either the outer finger sleeve portion 12 or the inner finger sleeve portion 11 is provided with a control valve 3. The control valve 3 is directly connected to the cavity 14 through the hose 2. Thus, when the control valve 3 is opened, gas or liquid can enter the cavity 14, thereby ensuring that the cavity 14 is filled to the preset pressure. When the control valve 3 is closed, gas or liquid can be prevented from entering the cavity 14.

[0037] Therefore, the hemostatic device 100 can achieve rapid and precise hemostasis, reduce adhesion between the elastic finger cot 1 and the nasal mucosa, and avoid secondary damage when the elastic finger cot 1 is removed from the nasal cavity. It has the advantage of simple operation.

[0038] According to specific embodiments of this utility model, such as Figure 2 As shown, the cavity 14 has a connection point 6, which is located on the outer finger sleeve portion 12. The connection point 6 is located near the bottom of the outer finger sleeve portion 12, relative to the top of the outer finger sleeve portion 12.

[0039] Specifically, connection point 6 is the connection position of control valve 3 to cavity 14 through hose 2. When connection point 6 of hose 2 and cavity 14 is located near the bottom of outer finger sleeve 12, it can ensure that most of the body of elastic finger sleeve 1 (especially the part in contact with hemostasis area) forms a closed system. This can effectively prevent liquid or gas leakage, thereby improving its sealing performance. In addition, it can also facilitate the injection of medium at the bottom of outer finger sleeve 12 and reduce the difficulty of operation.

[0040] According to some embodiments of this utility model, such as Figure 1 As shown, control valve 3 is located at connection point 6. Control valve 3 is used to control the opening / closing of the connection between cavity 14 and the outside world.

[0041] The control valve 3 is connected to the connection point 6 of the cavity 14 via the hose 2. The control valve 3 is located at the outer end of the hose 2, that is, at the end of the hose 2 away from the elastic finger sleeve 1. The control valve 3 can accurately and quickly open or close the connection between the cavity 14 and the outside world according to actual needs. The valve body in the control valve 3 can also adjust the flow rate. For example, the valve body in the control valve 3 can be set as a rotary ball valve, which can control the flow rate (e.g., gas, liquid, etc.), thereby directly controlling the injection and discharge of gas or liquid, avoiding the cumbersome steps of knotting, and shortening the hemostasis time from 5-10 minutes in the traditional method to 1-2 minutes, thus significantly improving the hemostasis efficiency.

[0042] Furthermore, the hemostatic device 100 can discharge gas or liquid through the control valve 3, and the elastic finger sleeve 1 can be easily contracted and removed. This not only avoids damage to the elastic finger sleeve 1, but also allows for reuse. The elastic finger sleeve 1 can be used at least 10 times, thereby reducing medical costs and avoiding the need to cut the hemostatic device 100 to discharge liquid or gas after hemostasis is completed.

[0043] According to some embodiments of this utility model, such as Figure 1 and Figure 4As shown, control valve 3 is a two-way or three-way adapter plug valve, which is used to connect to pressurization device 4.

[0044] Specifically, the pressurizing device 4 can be a syringe or a pump. When the pressurizing device 4 is a syringe, the control valve 3 is a two-way or three-way adapter stopcock valve. When the control valve 3 is a two-way adapter stopcock valve, one end of the adapter stopcock valve is connected to the syringe, which facilitates the injection of gas or liquid. The other end of the adapter stopcock valve is connected to the cavity 14 through the hose 2, so that the gas or liquid in the syringe can be injected into the cavity 14.

[0045] Alternatively, the pressurizing device 4 can be configured as a pump, which can provide power to deliver liquid or gas to the two-way adapter stop valve. In this way, gas or liquid can be accurately injected into the cavity 14 inside the elastic finger sleeve 1 through the two-way adapter stop valve, and gas or liquid in the cavity 14 inside the elastic finger sleeve 1 can be quickly discharged through the two-way adapter stop valve. This allows the hemostatic device 100 to achieve precise injection or discharge of liquid or gas.

[0046] When control valve 3 is a three-way adapter plug valve, one end of the adapter plug valve can provide two liquid inlets or two air inlets. You can choose one liquid inlet or one air inlet, or you can make both liquid inlets or air inlets work at the same time. In this way, you can choose according to the actual situation, or you can speed up the liquid or air intake rate.

[0047] Furthermore, the control valve 3 can be opened and closed rapidly, enabling a quick response and allowing the user to complete necessary operations in a short time, thus adapting to emergency needs. Also, when the cavity 14 inside the elastic finger sleeve 1 does not require the injection of gas or liquid, the control valve 3 can be closed to maintain the system's seal, thereby preventing unnecessary substances from entering the elastic finger sleeve 1.

[0048] In this way, the injection and discharge of gas or liquid can be flexibly controlled by the control valve 3, and the cumbersome operation of tying knots required by the traditional hemostatic device 100 can be avoided. At the same time, precise pressure control and convenient removal can be achieved, thereby significantly improving the ease of operation and safety.

[0049] According to some embodiments of this utility model, the two-way valve is either a polycarbonate valve or a stainless steel valve.

[0050] When the two-way valve is a polycarbonate valve, its lighter weight reduces the overall weight of the hemostasis device 100. Polycarbonate valves also have high impact resistance, making them less prone to breakage or damage, thus extending the service life of the hemostasis device 100. Furthermore, polycarbonate valves offer good transparency, allowing users to directly observe the flow of gas or liquid within the valve, providing excellent visualization. Compared to metal valves, polycarbonate valves are also more cost-effective, thereby reducing medical costs.

[0051] When a two-way valve is made of stainless steel, the stainless steel valve possesses high strength and hardness, making it less prone to wear or damage in harsh working environments. Stainless steel valves can operate stably for extended periods in humid, salt spray, or other corrosive environments, thus exhibiting excellent corrosion resistance. Furthermore, the smooth surface of stainless steel valves prevents dirt and grime buildup, making them easy to clean and disinfect.

[0052] According to some embodiments of this utility model, such as Figure 1 As shown, the adapter plug valve is equipped with a connector 5, which is suitable for connection to the pressurizing device 4.

[0053] The connector 5 allows for quick connection to the pressurizing device 4, and the connector 5 of the adapter plug valve meets the requirements of GB / T1962.2-2001 and GB / T 1962.1-2015. The connector 5 can be plugged into the pressurizing device 4 or magnetically connected, requiring no additional tools or complex installation steps. This allows the pressurizing device 4 to be quickly and easily connected to the control valve 3, further improving its operational efficiency.

[0054] Furthermore, connector 5 can be configured as a Luer lock. The Luer lock is locked by a thread, which can ensure a more stable and secure connection between connector 5 and pressurizing device 4, and can also prevent connector 5 from accidentally disconnecting from pressurizing device 4.

[0055] The connector 5 can also be configured as a ferrule, which can be fitted onto the pressurizing device 4. Furthermore, a sealing ring is provided between the ferrule and the pressurizing device 4, so as to achieve a tight connection between the ferrule and the pressurizing device 4 and improve its sealing performance.

[0056] According to some embodiments of the present invention, the hemostatic device 100 further includes a pressure sensor and a controller. The pressure sensor is disposed in the cavity 14, and the pressure sensor and the control valve 3 are electrically connected to the controller.

[0057] The pressure sensor is a miniature pressure sensor that can be attached to the inner wall of the outer finger sleeve 12 or the inner finger sleeve 11 with an adhesive, so that it can be located on the inner wall of the cavity 14 and thus detect the pressure of gas or liquid in the cavity 14.

[0058] Furthermore, the pressure sensor and control valve 3 are electrically connected to the controller. The pressure sensor can communicate with the controller via Bluetooth or wireless communication. In this way, the pressure sensor can transmit the detected pressure signal to the controller. At the same time, the controller receives the pressure signal. Since the controller is electrically connected to the control valve 3, the controller can control the opening angle of the valve body of the control valve 3, and can also control the opening and closing of the valve body. In this way, the feedback system can automatically adjust the amount of gas or liquid injected into the cavity 14, thereby ensuring that the pressure in the cavity 14 is always within a safe and effective range.

[0059] Moreover, by precisely controlling the pressure inside the elastic finger cot 1, the hemostatic effect can be ensured, while also avoiding damage to the nasal mucosa tissue due to excessive pressure. Compared with the traditional pneumatic hemostatic device 100, the pressure control accuracy can be improved by about 50%.

[0060] According to some embodiments of the present invention, the elastic finger sleeve 1 is an integrally molded elastic biocompatible material finger sleeve.

[0061] In this process, an elastic biocompatible material is dissolved in an organic solvent to form an impregnation solution, which is then impregnated onto a finger mold. After drying to remove the solvent, an outer finger sleeve portion 12 and an inner finger sleeve portion 11 are obtained, denoted as T1 and T2, respectively. T2 and T1 are sequentially placed onto the finger mold. Then, the overlapping portion at the bottom of the mold is impregnated again with the impregnation solution, and after drying to evaporate the solvent, the outer finger sleeve portion 12 and the inner finger sleeve portion 11 form a double-layer hollow finger sleeve, thus achieving the one-piece molding of the elastic finger sleeve 1. Moreover, the elastic finger sleeve 1 is molded in one step using the impregnation method, which is simple in production process and easy to scale up. Compared with traditional multi-layer composite processes, the production cost can be reduced by about 30%.

[0062] Furthermore, the elastic finger cot 1 not only has good elasticity and sealing properties, but also ensures that the hemostasis device 100 is durable and reusable. The reusable elastic finger cot 1 can reduce the generation of medical waste and reduce the procurement costs of medical institutions. Compared with traditional disposable hemostasis devices, it can save about 40% of consumable costs per year.

[0063] Moreover, the impregnation method can form a double-layer hollow structure, in which the outer finger sleeve 12 and the inner finger sleeve 11 are both soft protective layers with smooth surfaces, thereby reducing friction and adhesion with the nasal mucosa and avoiding secondary damage during removal.

[0064] According to some embodiments of the present invention, the elastic finger sleeve 1 is one of silicone finger sleeve, latex finger sleeve, polyester finger sleeve and polyurethane finger sleeve.

[0065] The elastic finger cot 1 is made of a biodegradable polymer material, which can be medical-grade silicone or latex. When the elastic finger cot 1 is made of silicone, it possesses high elasticity and resilience, allowing it to adapt to fingers of different sizes and providing excellent fit. It can also maintain its original shape and elasticity even after repeated stretching and compression. Furthermore, the silicone finger cot does not absorb water, is easy to clean, and can withstand high-temperature and high-pressure sterilization.

[0066] When the elastic finger sleeve 1 is made of latex, the latex finger sleeve has excellent elasticity and flexibility, and can closely conform to the contours of the finger, thus preventing it from slipping off. The latex finger sleeve also has the advantage of high tactile sensitivity, allowing the user to feel subtle textures and pressure changes.

[0067] When the elastic finger sleeve 1 is a polyester finger sleeve, the polyester finger sleeve has high abrasion resistance. In addition, the polyester finger sleeve is soft and fits the shape of the hand, making it relatively comfortable to wear and not causing too much pressure or discomfort to the hand.

[0068] When the elastic finger sleeve 1 is a polyurethane finger sleeve, the polyurethane finger sleeve has good elasticity and fit, can fit the finger well, and is also wear-resistant, thus extending its service life.

[0069] According to some embodiments of the present invention, the surface of the elastic finger sleeve 1 is provided with at least one of the following: chlorhexidine coating, antibiotic coating, silicone oil coating, hydrogel coating, and polyvinylpyrrolidone coating.

[0070] The surface of the elastic finger cot 1 can be provided with an antibacterial layer and an anti-adhesion coating, which can further reduce the risk of infection and the possibility of mucosal adhesion.

[0071] Specifically, when the surface of the elastic finger sleeve 1 is coated with a chlorhexidine coating, the chlorhexidine coating can inhibit a variety of bacteria, fungi and certain viruses, thereby providing long-term antibacterial protection.

[0072] Alternatively, the surface of the elastic finger cot 1 is provided with an antibiotic coating. The antibiotic coating can be selected according to specific needs to inhibit specific types of bacteria or fungi, which can enhance the treatment effect. In some cases, such as when treating wounds or performing local treatment, the antibiotic coating can directly release the drug to the target area to improve the treatment effect.

[0073] Furthermore, the surface of the elastic finger sleeve 1 is coated with a silicone oil coating. The silicone oil coating has good lubrication properties, which makes the elastic finger sleeve 1 easier to put on and take off, reduces friction during the wearing process, and prevents substances from adhering to the surface of the elastic finger sleeve 1, thus making it easier to clean and maintain.

[0074] Alternatively, the surface of the elastic finger cot 1 is provided with a hydrogel coating. The hydrogel coating itself is soft and has a certain degree of elasticity, which can reduce its friction and adhesion with the nasal mucosa.

[0075] Alternatively, the surface of the elastic finger cot 1 is provided with a polyvinylpyrrolidone coating. The polyvinylpyrrolidone coating can form a transparent protective film on the surface of the nasal mucosa, which can prevent external pollutants from entering and thus protect the nasal mucosa.

[0076] Furthermore, the steps for using the hemostatic device 100 include: placing the elastic finger cot 1 on the finger, inserting it into the nasal cavity for hemostasis under the guidance of a surgical endoscope, injecting air or liquid into the cavity 14 inside the elastic finger cot 1 through a two-way valve using a pressure device 4 or a pressure pump, causing it to expand and compress the bleeding point; observing the expansion state and hemostatic effect of the finger cot with a surgical endoscope to ensure appropriate pressure. After hemostasis is completed, opening the two-way valve allows the gas or liquid to be released, and the elastic finger cot 1 can be gently removed after it contracts.

[0077] The elastic finger cot 1 is designed to fit the shape of a finger, and its length and diameter can be adjusted according to the nasal cavity anatomy. Various sizes and shapes of elastic finger cots 1 are available to meet the needs of different patients. The combination of elastic finger cot 1 and control valve 3 is simple and efficient, allowing hemostasis to be performed without complex auxiliary tools, thus reducing the learning cost and ease of use for medical staff.

[0078] Specifically, in Example 1: the elastic finger sleeve 1 can be a medical silicone finger sleeve.

[0079] In Example 1, the elastic finger cot 1 is made of medical-grade silicone, with a length of 5 cm, a diameter of 1.5 cm, and a thickness of 0.5 mm. The elastic finger cot 1 is designed with a double-layered hollow structure. The control valve 3 is made of medical-grade polycarbonate, with an interface diameter of 2 mm, and is equipped with a rotary switch. In use, the elastic finger cot 1 is worn on the index finger and inserted into the nasal cavity under the guidance of a surgical endoscope. A 10 ml syringe is connected through the control valve 3, and 8 ml of physiological saline is injected to inflate the elastic finger cot 1, compressing the bleeding point to achieve hemostasis. After hemostasis is achieved, the fluid is drained through the control valve 3, and the elastic finger cot 1 retracts and can be easily removed. Testing showed that the hemostasis time was ≤2 minutes, the patient experienced no discomfort, the finger cot could be reused ≥10 times, and its performance was stable.

[0080] Example 2: Elastic finger cot 1 can be a medical latex finger cot.

[0081] In Example 2, the elastic finger cot 1 is made of medical-grade latex, with a length of 4 cm, a diameter of 1.2 cm, and a thickness of 0.3 mm. The elastic finger cot 1 is designed with a double-layered hollow structure. The control valve 3 is made of medical-grade stainless steel, with an interface diameter of 1.5 mm, and is equipped with a rotary switch. In use, the elastic finger cot 1 is worn on the index finger and inserted into the nasal cavity under the guidance of a surgical endoscope. A 5 ml syringe is connected to the control valve 3, and 4 ml of air is injected to inflate the finger cot, compressing the bleeding point to achieve hemostasis. After hemostasis is achieved, the air is expelled through the control valve 3, and the elastic finger cot 1 contracts and can be easily removed. Testing showed that the hemostasis time is ≤1.5 minutes, the patient experiences no discomfort, the finger cot can be reused ≥15 times, and its performance is stable.

[0082] Example 3: Child-specific finger cots.

[0083] In Example 3, the elastic finger cot 1 is made of medical-grade silicone, with a length of 3 cm, a diameter of 1.0 cm, and a thickness of 0.4 mm. The elastic finger cot 1 features a double-layered hollow structure, specifically designed for children's nasal cavities. The control valve 3 is made of medical-grade polycarbonate, with an interface diameter of 1.5 mm, and is equipped with a rotary switch. In use, the elastic finger cot 1 is worn on the index finger and inserted into the child's nasal cavity under surgical guidance. A 5 ml syringe is connected to the control valve 3, and 3 ml of saline solution is injected to inflate the elastic finger cot 1, compressing the bleeding point to achieve hemostasis. After hemostasis is achieved, the fluid is drained through the control valve 3, and the elastic finger cot 1 retracts and can be easily removed. Testing showed that the hemostasis time was ≤1 minute, the child patient experienced no discomfort, the finger cot can be reused ≥10 times, and its performance is stable.

[0084] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0086] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hemostatic device, characterized in that, include: An elastic finger sleeve includes an inner finger sleeve portion and an outer finger sleeve portion. The inner finger sleeve portion has a finger groove for finger insertion. The outer finger sleeve portion is fitted onto the inner finger sleeve portion. The bottom of the outer finger sleeve portion is connected to the bottom of the inner finger sleeve portion. A cavity is formed between the inner and outer finger sleeve portions for filling with a medium. A control valve is provided in either the outer or inner finger sleeve portion, and the control valve communicates with the cavity.

2. The hemostatic device according to claim 1, characterized in that, The cavity has a connection point located on the outer finger sleeve portion, with the connection point positioned near the bottom of the outer finger sleeve portion relative to the top of the outer finger sleeve portion.

3. The hemostatic device according to claim 2, characterized in that, The control valve is located at the connection point and is used to control the opening and closing of the connection between the cavity and the outside world.

4. The hemostatic device according to claim 3, characterized in that, The control valve is a two-way or three-way adapter plug valve, which is used to connect to a pressurizing device.

5. The hemostatic device according to claim 4, characterized in that, The two-way valve is either a polycarbonate valve or a stainless steel valve.

6. The hemostatic device according to claim 4, characterized in that, The adapter plug valve is provided with a connector, which is adapted to be connected to the pressurizing device.

7. The hemostatic device according to claim 1, characterized in that, The elastic finger sleeve is a one-piece molded elastic biocompatible material finger sleeve.

8. The hemostatic device according to claim 7, characterized in that, The elastic finger sleeve is one of silicone finger sleeves, latex finger sleeves, polyester finger sleeves, and polyurethane finger sleeves.

9. The hemostatic device according to claim 1, characterized in that, The surface of the elastic finger sleeve is provided with at least one of the following: chlorhexidine coating, antibiotic coating, silicone oil coating, hydrogel coating, and polyvinylpyrrolidone coating.

10. The hemostatic device according to claim 1, characterized in that, Also includes: A pressure sensor and a controller are provided, wherein the pressure sensor is disposed within the cavity, and the pressure sensor and the control valve are electrically connected to the controller.

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