CN101147712B - Adsorbing type hemostatic dressing plaster - Google Patents

Abstract

The invention discloses an adsorption-type hemostatic applicator, wherein multiple rows of negative pressure adsorption tubes are embedded in the bonding surface of the hemostatic applicator, and an air suction device connected to each row of negative pressure adsorption tubes through a one-way valve is installed inside. Tube, multiple air suction tubes are collected in the same tube. The hemostatic applicator has a strong ability to actively attach and compress bleeding wounds, relying on active compression and the hemostatic components contained in it can quickly and effectively control various types of bleeding such as wound bleeding and even venous and arterial bleeding. A hemostatic patch with high reliability and strong clinical practicability.

Description

Absorbent hemostatic dressing

technical field

The invention relates to a medical product, specifically an applicator for hemostasis treatment on bleeding parts of patients.

Background technique

How to stop bleeding safely and effectively has always been an important part of clinical treatment, and the development of related technologies and methods is a strong driving force for the development of clinical medicine, especially surgery. In the field of surgery, reliable hemostasis is a necessary guarantee for the life safety of surgical patients; secondly, it can also reduce hemorrhage in the operation area, facilitate wound healing, and reduce infection complications; in addition, reducing or avoiding blood transfusion can prevent the spread of certain diseases; Can greatly reduce the economic burden of patients. The development of hemostasis technology has broken more and more surgical forbidden areas, but it is far from making this field a free kingdom for surgeons. Bleeding is still the most common complication of surgery and the main cause of early death in trauma.

At present, there are very reliable hemostasis methods (such as suturing, ligation, electrocoagulation, argon knife, etc.) for general bleeding of large blood vessels and soft tissues, but the treatment of bleeding from solid organ wounds is still a difficult problem in the field of surgery . Substantial organs are fragile and have abundant blood flow (such as the brain, kidney, liver, and spleen). The surgical wound bleeding includes both large arterial and venous bleeding and extensive bleeding from small blood vessels. Suture hemostasis is necessary to control the bleeding of large blood vessels, but at the same time, it is very easy to cause tissue cutting and damage, resulting in bleeding from gaps or needle holes; in addition, suture hemostasis is not only difficult to achieve extensive bleeding on visceral wounds, but also makes the sutured tissue less effective. Ischemia in the ligated tissue can affect the functions of important organs such as the brain, kidney, and liver. When patients with poor coagulation function, wound bleeding is more obvious and difficult to deal with, which is more common in clinical practice. At present, in brain, kidney, liver and other parenchymal organ operations, surgeons cannot handle the lesions as they wish because the bleeding problem has not been well resolved.

Researchers have found in many years of clinical work that for partial nephrectomy parenchymal wound bleeding and transplanted kidney surface bleeding, as well as arterial and venous anastomotic leakage, using gauze, gelatin sponge or instant gauze to cover and compress with fingers can be very effective. Accurately control almost all bleeding (including oozing and arterial and venous gushing bleeding). Within a certain range, the length of the compression time often determines the hemostatic effect. Once the pressure applied to the wound is removed, a firm blood clot can form on the bleeding wound and the surface of the arterial and venous anastomosis that has been compressed for a long enough time. But hemostasis, and most of the wounds with short compression time still bleed continuously, which shows that as long as some kind of hemostatic material is used on the bleeding wound, a certain compression force is applied, and it is maintained for a certain period of time, most of the kidney wounds or Arteriovenous anastomotic bleeding was very effectively controlled. So far, the method of gauze packing, compression to stop bleeding, and postoperative deferred extraction has been used for extensive bleeding of solid organ wounds. Because it is very effective, it is still used in emergency and critical cases. However, due to the existence of secondary massive bleeding and incision Worry about infection, the general situation is rarely used. These facts show that continuous pressure on the bleeding wound is an important condition for various hemostatic materials to function effectively. According to the three-part action of the physiological hemostasis process (small blood vessel constriction reaction; activation of the coagulation system in platelets and plasma) mechanism and the characteristics of the anatomical structure of parenchymal organs, it is speculated that the wound surface pressure causes the blood flow of the blood vessels that are not easy to contract in the organs to suspend or slow down. The hemostatic dressing is conducive to the activation of platelets to adhere to the subintimal tissue and form a solid hemostatic plug composed of fibrin and platelets, which effectively stops bleeding.

Recently, King et al. reported in the United States that the improvement of the strong hemostatic dressing used in vitro, combined with wound compression for a certain period of time, can effectively control most wound bleeding and save the lives of patients when used in the treatment of bleeding in patients with severe abdominal organ injury. It shows the importance of hemostasis combined with hemostatic material and wound compression. Unfortunately, the hemostatic material did not actively adhere to and compress the wound, requiring a large amount of packing; in addition, its main body was non-absorbable, and the patient had to undergo a second laparotomy to remove the hemostatic dressing after recovery. In recent years, for the problem of parenchymal organ bleeding, foreign countries have invested heavily in and developed hemostatic materials. Wound hemostatic drugs represented by Alistair Hemostatic Powder from Medafor in the United States have been used in the clinical treatment of hemorrhage in kidneys, liver, and brain tissues. The most important step in its application is to apply pressure to the wound for a certain period of time and with a certain intensity to promote the formation of blood clots. However, due to the lack of continuous pressure on the wound, its hemostatic effect is greatly affected, and there are The blood clot dislodges, with the risk of secondary bleeding. Theoretically, covering hemostasis is an ideal treatment method for visceral wound bleeding, which can achieve comprehensive hemostatic effect with the help of artificially formed hemostatic membrane, but it needs strong adhesion and compression ability of the hemostatic membrane to the wound surface. The combination of procoagulant effect can exert the best hemostatic effect, while the active strong adhesion and compression ability to the wound surface is currently lacking in all hemostatic covering materials at home and abroad, which is the main reason for its weak hemostatic effect, which needs to be solved urgently.

Contents of the invention

Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide an adsorption-type hemostatic applicator. The hemostatic applicator has a strong ability to actively attach and compress bleeding wounds. Depending on the active compression and the hemostatic components contained in it, various types of bleeding such as bleeding from wounds and even venous and arterial bleeding can be quickly and effectively controlled.

In order to achieve the above object, the technical scheme adopted in the present invention is:

An adsorption-type hemostatic applicator, in which multiple rows of negative pressure adsorption tubes are embedded on the bonding surface, and air suction tubes connected to each row of negative pressure adsorption tubes through a one-way valve are installed inside, and multiple rows of negative pressure adsorption tubes are installed inside. The air suction pipes are combined in the same pipe.

An incarceration ring is arranged in the nozzle of the negative pressure adsorption tube.

The air suction pipe is fixedly connected with the negative pressure adsorption pipe through a one-way valve.

The air suction pipe is flexibly connected with the negative pressure adsorption pipe through a one-way valve.

The nozzle of the negative pressure adsorption tube is flush with the bonding surface of the hemostatic applicator or retracted inward for a certain distance.

The one-way valve is arranged on the top or side wall of the negative pressure adsorption tube.

The hemostatic patch is an expandable sponge filled with hemostatic filling materials.

Based on the small-diameter negative pressure adsorption technology, the present invention combines hemostatic materials to form a new type of hemostatic applicator with strong self-absorbing ability. Through the incarceration, compression and the coagulation-promoting effect of the hemostatic material, it can achieve a strong effect on bleeding wounds. , reliable hemostatic effect, is a hemostatic application with high reliability and strong clinical practicability. This product can greatly improve the effectiveness of covered hemostatic materials, making covered hemostasis truly an effective supplement and substitute for traditional suturing hemostasis, providing a new powerful method for the treatment of various soft tissue bleeding in the field of surgery, and ensuring surgical safety. Providing strong protection can greatly improve the level of surgical treatment and promote the development of surgical technology. It is suitable for the treatment of bleeding from various parenchymal organs and bleeding from large soft tissue wounds in peacetime and wartime.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is a side view of the present invention;

Fig. 3 is a top view of the present invention;

Fig. 4 is a schematic cross-sectional view of the present invention attached to a bleeding wound.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

The reference signs are explained as follows:

1. Hemostatic applicator 2. Negative pressure adsorption tube

3. Incarcerated ring 4. Check valve

5. Air suction tube 6. Bleeding wound

As shown in Figures 1 to 4, multiple rows of negative pressure adsorption tubes 2 are embedded on the bonding surface of the hemostatic applicator 1. The hemostatic applicator 1 is made of expandable sponge filled with hemostatic filling materials, and the negative pressure adsorption tubes The mouth of the nozzle is flush with the bonding surface of the hemostatic applicator or indented inward for a certain distance. There is an incarcerated ring 3 inside the nozzle, and the inner part of the hemostatic applicator is equipped with a one-way valve 4 that absorbs with each row of negative pressure. The air suction tube 5 connected with the tube can be fixed or pull-out connection, and multiple air suction tubes gather in the same tube outside the hemostatic applicator.

As shown in Figure 4, the product enables the hemostatic applicator to be actively attached to the bleeding wound through the formation of negative pressure. When the negative pressure in the pressure adsorption tube disappears, the hemostatic applicator can still be attached to the wound surface through the incarceration effect. The connection between the air suction tube and the negative pressure adsorption tube can be fixed or a pull-out structure. After the tube is pulled out, the negative pressure in the negative pressure adsorption tube is maintained by the one-way valve. This design makes the hemostatic applicator left on the wound without too much rigid structure, so that the hemostatic applicator can be smoothly combined with the bleeding wound, and every time An air suction pipe is connected with a row of negative pressure adsorption pipes, which simplifies the design structure of the application and is beneficial to large-scale production.

The specific steps for using a hemostatic applicator are as follows:

1. When a solid organ is bleeding, apply a negative pressure adsorption hemostatic applicator to the surface of the bleeding organ;

2. Use a suction device to quickly generate negative pressure in the negative pressure adsorption tube of the application, and through the negative pressure and the incarcerated ring at the mouth of the negative pressure adsorption tube, the hemostatic application can be actively attached to the surface of the bleeding parenchymal organ ;

3. Pull out the air suction tube after checking whether there is any place where it is not firmly attached, and only the hemostatic applicator and the negative pressure adsorption tube for active adsorption are left on the tissue wound surface;

4. After completing the above steps, check the reliability of hemostasis, trim the excess part of the hemostatic applicator, and complete the hemostasis process.

Of course, theoretically speaking, although the application of the principle of vacuum negative pressure can effectively attach objects to tissue wounds, due to the bleeding of wounds, the biggest hidden worry about the application of negative pressure devices is whether negative pressure suction will increase wound bleeding. In this regard, the negative pressure adsorption technology was applied to different tissue wound bleeding, and more than 100 cases of clinical pre-experimental observations were repeatedly conducted. It was found that local negative pressure suction not only did not increase wound bleeding, but had a hemostatic effect. The principle is the incarceration effect of local negative pressure on the tissue. The stronger the negative pressure, the more obvious the incarceration effect and the stronger the hemostatic effect. In addition, unlike the current non-absorptive wound hemostatic materials, liquid components such as blood on the tissue wound surface not only have no effect on negative pressure suction, but help to maintain the airtightness of the adsorption surface.

The present invention is not limited to the above-mentioned best implementation mode, and anyone can draw other products in various forms under the enlightenment of the present invention. However, no matter any changes are made in its shape or structure, all technical solutions identical or similar to the present invention are within its protection scope. For example, a variety of biological materials can be used to produce materials, including bioabsorbable materials and non-absorbable materials. As a hemostatic filling material, all current hemostatic materials can be selected for filling. The use of other materials should be considered as different materials for this invention. Applications. In addition, the shape of the hemostatic applicator can be adjusted according to the shape and size of the wound surface, and similar designs of different shapes and sizes should also be regarded as specific application types of the invention.

Claims (6)

1. An adsorption type hemostatic applicator, is characterized in that, the bonding surface of this hemostatic applicator is embedded with many rows of negative pressure adsorption tubes, and the inside is equipped with air that is connected to each row of negative pressure adsorption tubes by a one-way valve. As for the suction pipe, a plurality of air suction pipes are collected in the same pipe, and an incarceration ring is arranged in the nozzle of the negative pressure adsorption pipe. 2. The adsorption-type hemostatic applicator according to claim 1, wherein the air suction tube is fixedly connected to the negative pressure adsorption tube through a one-way valve. 3. The adsorption-type hemostatic applicator according to claim 1, characterized in that, the air suction pipe is flexibly connected to the negative pressure adsorption pipe through a one-way valve. 4 . The adsorption-type hemostatic applicator according to claim 1 , wherein the mouth of the negative pressure adsorption tube is flush with the bonding surface of the hemostatic applicator or retracted inward by a certain distance. 5. The adsorption-type hemostatic applicator according to claim 1, wherein the one-way valve is arranged on the top or the side wall of the negative pressure adsorption tube. 6. The adsorption-type hemostatic patch according to claim 1, characterized in that, the hemostatic patch is an expandable sponge filled with a hemostatic filling material.

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