Simple deep venous catheter capable of being used for first-aid rapid catheterization
By designing a simple deep vein catheter, combined with removable components and ultrasound guidance, the problem of long time for traditional central vein catheterization is solved, and rapid and safe deep vein catheterization is achieved, improving first aid efficiency and sterility.
Patent Information
- Application Number
- CN202421895211.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-08-07
AI Technical Summary
In shock state, traditional central venous catheterization operation takes a long time, making it difficult to quickly establish central venous access, affecting first aid efficiency.
A simple deep venous catheter including syringe interface, connector, connecting tube, heparin cap, closure clip, sterile hole towel and other components is designed. Combined with removable design and ultrasonic guidance, it achieves a fast and safe deep venous catheterization.
Improve first aid efficiency, ensure operation safety and sterility, reduce operation time, and enhance catheter flexibility and service life.
Smart Images
Figure CN223220815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of venous catheters, in particular to a simple deep venous catheter which can be used for emergency rapid catheterization. Background Art
[0002] Acute or chronic blood or fluid loss due to external or internal factors may lead to shock and endanger the patient's life. Establishing peripheral or central venous access is a crucial step in saving the patient's life. However, in a state of shock, due to the protective contraction of peripheral blood vessels and insufficient volume and vascular filling, it is often difficult to establish peripheral venous access, especially for patients who have lost limbs due to severe trauma, burn patients, etc., it may even be impossible to establish peripheral venous access. Therefore, central venous access has become the preferred option for emergency rescue of critical illnesses.
[0003] However, the central venous catheterization technique that has been used for a long time, although very mature, still takes longer to operate than peripheral venous catheterization. Even for a skilled anesthesiologist, it takes 3-5 minutes or even longer to complete the operation under relatively smooth circumstances. Therefore, shortening the time of central venous catheterization is also the key to increasing the success rate of patient emergency treatment. As the saying goes, time is life.
[0004] Traditional connecting tubes are not easy to bend, have strong pressure resistance, and are of sufficient length, but the catheterization time is long. New peripheral venous catheters are easy to bend and are insufficient in length, but have fast puncture speed and simple operation. Combining their respective advantages and disadvantages, and with the increasingly mature and popular ultrasound-guided positioning technology, designing a new central venous catheter that can be quickly placed should have its value. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a simple deep vein catheter that can be used for emergency rapid catheterization.
[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a simple deep vein catheter that can be used for emergency rapid catheterization, including a syringe interface, a connector is installed at one end of the syringe interface, the upper end of the connector is connected to a connecting tube, a heparin cap is installed on the top of the connecting tube, a closing clamp is provided on the outside of the connecting tube, one end of the connector is connected to a new catheter, circular slots and square slots are provided on both sides of the connector, a sterile drape is provided on one side of the syringe interface, and a square drape hole is provided inside the sterile drape.
[0007] As a further description of the above technical solution:
[0008] The connector is detachably mounted on the bottom of the syringe interface, and the connecting tube is detachably mounted on the top of the connector. The length of the novel catheter is eight to twelve centimeters.
[0009] As a further description of the above technical solution:
[0010] The heparin cap is integrally connected to the top of the connecting tube, a connecting valve is provided inside the heparin cap, and a closing clamp is movably connected to the outside of the connecting tube.
[0011] As a further description of the above technical solution:
[0012] The circular slot is opened on one side of the connector, and the square slot is opened on the other side of the connector. The circular slot is circular in shape, and the square slot is square in shape.
[0013] As a further description of the above technical solution:
[0014] The shape of the sterile drape is square, the hole of the square drape is opened in the middle of the sterile drape, and the shape of the hole of the square drape is square.
[0015] The utility model has the following beneficial effects:
[0016] The design of the simple deep vein catheter in the present invention not only improves the efficiency of emergency treatment, but also ensures the safety and sterility of the medical process. In an emergency, doctors or medical personnel can quickly and accurately perform deep vein catheterization, thus buying more time for the patient's rescue.
[0017] The detachable design of the connector allows for easy replacement or cleaning of the catheter, increasing its service life and safety. The detachable connection tube also makes it easier for medical personnel to select the appropriate catheter length and specifications based on the patient's specific condition.
[0018] The integrated connection design of the heparin cap not only simplifies the operation process, but also ensures a tight connection between the heparin cap and the connecting tube, preventing leakage or falling off. The connecting valve inside the heparin cap can adjust the flow rate of the liquid as needed to ensure patient comfort and safety.
[0019] The closure clamp allows for convenient closure of the catheter when it's not in use, preventing the ingress of external contaminants. Furthermore, the clamp's articulated design ensures flexibility and ease of use. The circular and square slots allow medical personnel to select the appropriate slot for connection, enhancing operational flexibility and convenience.
[0020] The sterile drape design ensures that the patient's skin is effectively protected during the procedure, preventing skin infections. Furthermore, the square drape hole allows for easy alignment of the drape hole with the puncture site when the patient's skin needs to be exposed for puncture, reducing errors during the procedure. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the overall structure of a simple deep venous catheter that can be used for emergency rapid catheterization proposed by the utility model;
[0022] Figure 2 This is a schematic structural diagram of a sterile drape for a simple deep vein catheter that can be used for rapid emergency catheterization, as proposed by the present invention;
[0023] Figure 3 This is an enlarged view of point A of a simple deep venous catheter for emergency rapid catheterization proposed by the present invention;
[0024] Figure 4 This is an interface diagram of a new type of catheter proposed by the utility model, which can be used for emergency rapid catheterization of a simple deep vein catheter;
[0025] Figure 5 This is a picture of the puncture needle of a simple deep vein catheter that can be used for emergency rapid catheterization proposed by the utility model after it is taken out.
[0026] Legend:
[0027] 1. Syringe interface; 2. Heparin cap; 3. Connecting tube; 4. Connector; 5. New catheter; 6. Sterile drape; 7. Square drape hole; 8. Round slot; 9. Square slot; 10. Closure clamp. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] Reference Figure 1-5 The utility model provides an embodiment: a simple deep vein catheter that can be used for emergency rapid catheterization, comprising a syringe interface 1, a connector 4 installed at one end of the syringe interface 1, a connecting tube 3 connected to the upper end of the connector 4, a heparin cap 2 installed on the top of the connecting tube 3, a closing clamp 10 provided on the outside of the connecting tube 3, a new catheter 5 connected to one end of the connector 4, circular slots 8 and square slots 9 provided on both sides of the connector 4, a sterile drape 6 provided on one side of the syringe interface 1, and a square drape hole 7 provided inside the sterile drape 6.
[0031] Specifically, the new catheter 5 is provided with a puncture needle inside, and an opening is opened on its surface near the bottom. When in use, the new catheter is introduced into the patient's vein using the puncture needle. The new catheter is made of polyurethane material (the material used for new infant catheters). The new catheter is 14 cm long, and the puncture needle is slightly longer than the length of the new catheter. When in use, the new catheter is introduced into the patient's vein through the puncture needle, and then the puncture needle is removed, and the new catheter remains in the patient's vein. The new catheter is fixed to the patient's body through a fixed connector.
[0032] Particularly, the opening is provided on the first channel, and the medicine of the first channel is input into the patient's vein through the opening, and the medicine of the second channel enters the patient's vein through the novel catheter, so the first channel and the second channel are sealed to each other.
[0033] In this utility model, the connector 4 is detachably mounted on the bottom of the syringe interface 1, and the connecting tube 3 is detachably mounted on the top of the connector 4. The length of the novel catheter 5 ranges from 8 to 14 cm. The tip of the novel catheter 5 is precision-ground to ensure smooth and unobstructed penetration of skin and tissue while minimizing pain for the patient. The design of the novel catheter 5 takes into account the characteristics of human anatomy, and its curvature and rigidity have been rigorously tested to ensure its suitability for venous punctures at different locations and depths.
[0034] Specifically, the tail of the syringe interface 1 can be connected to the syringe, which is convenient for confirming whether it is in the blood vessel. It itself is a new catheter and also the tail end of the puncture needle. The front end of the puncture needle tip is slightly longer than the new catheter, which is conducive to catheterization.
[0035] When the syringe interface 1 (blood returns after the new catheter enters the blood vessel), we can confirm that the catheter and the new catheter 5 have also entered the blood vessel. At this time, stabilize the syringe interface 1 and slowly push the new catheter 5 into the blood vessel. At this point, the deep vein catheter is successfully inserted.
[0036] Furthermore, the heparin cap 2 is integrally connected to the top of the connecting tube 3. A connecting valve is provided inside the heparin cap 2. A closing clamp 10 is movably connected to the outside of the connecting tube 3. The closing clamp 10 is cleverly designed and is used to quickly and effectively close the connecting tube 3 when intravenous infusion or blood sampling is not required, thereby preventing the invasion of external bacteria or contaminants and ensuring the safety of the patient.
[0037] Specifically, the syringe interface 1 and the new catheter 5 are on the same central axis, and an opening should be opened on the side of the new catheter 5 near the bottom. The cover opening is connected to the connecting tube. The bottom of the new catheter 5 is also an opening, which is connected to the syringe interface. The two openings form two channels that do not affect each other. One channel can be used for blood transfusion, and the other channel can be used for anesthetic transfusion.
[0038] In particular, the tip of the puncture needle exceeds the tip of the novel catheter 5 , and the doctor can introduce the novel catheter into the patient's venous blood vessel through the puncture needle.
[0039] Furthermore, the circular slot 8 is opened on one side of the connector 4, and the square slot 9 is opened on the other side of the connector 4. The circular slot 8 is circular in shape, and the square slot 9 is long and parallel to the new catheter.
[0040] Specifically, the connector is a rectangular parallelepiped with a circular through hole on the left and a square through hole on the right. The square through hole is used to thread a bandage, and the bandage is used to fix the connector to the patient to reduce the patient's pain. When it is inconvenient to use a bandage to fix it, the circular through hole is used to fix the connector using existing technology.
[0041] The square slot 9 is designed as a rectangular hole. Its purpose is that if the catheter does not need to be kept in the blood vessel for too long, we can use an elastic bandage to fix it, which can also reduce one invasive operation.
[0042] Furthermore, the sterile drape 6 is square in shape, and the square drape hole 7 is provided in the middle of the sterile drape 6. The square drape hole 7 is square in shape and of a suitable size, sufficient for medical personnel to perform surgery or treatment in a sterile environment. The four edges of the drape hole are rounded to avoid possible scratching and tearing, while also enhancing its durability.
[0043] The material of the sterile drape 6 is high-quality non-woven fabric, which not only has excellent antibacterial properties, but is also soft and comfortable and will not irritate the patient's skin.
[0044] Specifically, see Figure 5 The first channel is connected to the connecting tube 3, and the second channel is connected to the syringe interface 1. Blood and medicine can be transfused simultaneously through the two channels.
[0045] Working principle and usage process:
[0046] When deep vein catheterization needs to be performed quickly, first ensure the sterility of all components. Open the sterile drape 6 and cover it on the patient's skin, ensuring that the square drape hole 7 is aligned with the predetermined puncture position.
[0047] Next, take out the simple deep vein catheter from the sterile package, dock the connector 4 with the bottom of the syringe interface 1 and tighten it to ensure there is no leakage. Then, connect the connecting tube 3 with the top of the connector 4 and tighten it.
[0048] At this time, the new catheter 5 is aligned with the square hole 7 on the patient's skin, and the syringe is used to gently push the catheter 5 until it enters the blood vessel. During the puncture process, whether the new catheter 5 has successfully entered the blood vessel can be judged by observing whether there is blood returning in the syringe.
[0049] Once puncture is successful, advancement can be stopped and manipulation can be continued through the circular slots 8 and square slots 9 on either side of the connector 4. The circular slots 8 can be used to secure the catheter to the skin around the puncture site with sutures, while the square slots 9 can be used to secure the catheter with bandages, ropes, or other non-invasive methods. The puncturist can determine the appropriate method of attachment based on the specific environment and patient needs. The square slots 9 can also be used to secure bandages, reducing the number of invasive procedures and improving patient comfort.
[0050] Next, medicine or liquid can be injected into the connecting tube 3 through the syringe interface 1. After the injection is completed, the connecting valve inside the heparin cap 2 can be closed to prevent blood from flowing back.
[0051] When the deep vein catheter is no longer needed, the catheter can be easily separated from the syringe through the connector 4 and the catheter can be closed by the closing clamp 10 to prevent blood from flowing out.
[0052] Throughout the entire process, the use of a sterile drape 6 can ensure the sterility of the operating area and reduce the risk of infection. At the same time, the square drape is conducive to ultrasound-guided puncture and facilitates the placement of the ultrasound probe for better ultrasound imaging.
[0053] In summary, the utility model provides a simple deep venous catheter that can be used for rapid catheterization in emergency situations. It has the advantages of simple structure, easy operation, and good sterility effect, and can meet the needs of rapid catheterization at the emergency scene.
[0054] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A simple deep vein catheter for emergency rapid catheterization, comprising a syringe interface (1), characterized in that: One end of the syringe interface (1) is provided with a connector (4), the upper end of the connector (4) is connected to a connecting tube (3), the top of the connecting tube (3) is provided with a heparin cap (2), the outer side of the connecting tube (3) is provided with a closing clamp (10), one end of the connector (4) is connected to a novel catheter (5), both sides of the connector (4) are provided with circular slots (8) and square slots (9), one side of the syringe interface (1) is provided with a sterile drape (6), and the interior of the sterile drape (6) is provided with a square drape hole (7).
2. A simple deep venous catheter for emergency rapid catheterization according to claim 1, characterized in that: The connector (4) is detachably mounted on the bottom of the syringe interface (1), the connecting tube (3) is detachably mounted on the top of the connector (4), and the length of the novel catheter (5) is 8-12 cm.
3. The simplified deep venous catheter for emergency rapid catheterization according to claim 1, characterized in that: The heparin cap (2) is integrally connected to the top of the connecting tube (3); a connecting valve is provided inside the heparin cap (2); and a closing clamp (10) is movably connected to the outside of the connecting tube (3).
4. A simple deep venous catheter for emergency rapid catheterization according to claim 1, characterized in that: The circular slot (8) is opened on one side of the connector (4), and the square slot (9) is opened on the other side of the connector (4). The circular slot (8) is circular in shape, and the square slot (9) is square in shape.
5. The simplified deep venous catheter for emergency rapid catheterization according to claim 1, characterized in that: The sterile drape (6) is square in shape, and the square drape hole (7) is opened in the middle of the sterile drape (6). The square drape hole (7) is square in shape.