Puncture indwelling needle convenient for developing and positioning
By fastening an extremely thin metal ring to the outer wall of the indwelling catheter, making it visible to ultrasound but impervious to X-rays, the problem of difficult positioning of the indwelling needle in the body is solved, achieving efficient visualization and accurate positioning of the catheter, thus improving treatment efficiency and safety.
Patent Information
- Application Number
- CN202422756730.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing indwelling needles are difficult to locate accurately under ultrasound guidance, especially when the catheter is misaligned or broken, resulting in insufficient imaging ability and affecting treatment efficiency and safety.
A very thin metal collar is fastened to the outer wall of the indwelling catheter, making it visible to ultrasound but impervious to X-rays. Combined with the tight fit design between the steel needle and the catheter, this ensures accurate positioning and visualization of the catheter within the body.
It improves the ability of catheters to be visualized and positioned in the body, reduces the risk of displacement and breakage, improves treatment efficiency, and reduces the workload of medical staff and the suffering of patients.
Smart Images
Figure CN223641122U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field more specifically, the utility model relates to a kind of puncture indwelling needle convenient to develop positioning. BACKGROUND
[0002] Puncture indwelling needle is a kind of for medical process needs long time or multiple intravenous infusion, blood transfusion, dosing or blood collection, it is kept intravenous access open by being indwelt in patient intravenous soft catheter and a connector fixed on skin surface, its purpose is to reduce the pain and discomfort of patient caused by frequent puncture, while facilitating medical staff to carry out drug infusion or blood collection operation at any time.
[0003] At present, when continuous nerve block is carried out, a steel needle is usually used to puncture the skin, and the drug is injected into the surrounding target point to complete anesthesia, but in the case of some chronic pain and intractable pain in the pain department, single anesthesia effect is poor, and anesthesia needs to be carried out uninterruptedly or at intervals, at this time, the indwelling catheter needs to be sent into the surrounding target point under the guidance of ultrasound, so that drug supply can be carried out.
[0004] In this case, the steel needle is located inside the catheter when puncture is just performed, so that medical staff can easily observe the position of the needle tip under the guidance of ultrasound, but after the steel needle is removed, the catheter may be offset from the target position after the patient moves, at this time, medical staff need to confirm the position of the catheter by ultrasound imaging positioning, since the indwelling catheter is transparent, its imaging ability is poor, so it is difficult to be accurately positioned, therefore, it needs to be improved and optimized. SUMMARY
[0005] In order to overcome the shortcomings of the prior art, the utility model provides a kind of puncture indwelling needle convenient to develop positioning, with the advantages of strong imaging ability and easy positioning.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of puncture indwelling needle convenient to develop positioning, including connector, the bottom of the connector is fixedly installed with push plate, the left side of the connector is fixedly installed with indwelling catheter;
[0007] The outer wall of the indwelling catheter is fixedly sleeved with a metal sleeve ring, the right side of the connector is provided with a steel needle base, the left side of the steel needle base is fixedly installed with a steel needle, the left end of the steel needle penetrates the inside of the connector, and the steel needle is located inside the indwelling catheter.
[0008] As a preferred technical scheme of the utility model, the metal sleeve ring is arranged on the outer wall of the left end of the indwelling catheter, and the thickness of the metal sleeve ring is very thin.
[0009] As a preferred embodiment of this invention, the metal collar is fastened to the outer surface of the indwelling catheter, and the metal collar can be visualized by ultrasound and cannot be penetrated by X-rays.
[0010] As a preferred embodiment of this utility model, the steel needle is movably disposed inside the indwelling catheter, and the leftmost end of the indwelling catheter is provided with a constriction, and the indwelling catheter and the steel needle are tightly fitted together.
[0011] As a preferred embodiment of this utility model, a needle tip is fixedly installed at the left end of the steel needle, and the needle tip is located on the outside of the indwelling catheter.
[0012] As a preferred technical solution of this utility model, the steel needle can be withdrawn through the steel needle base into the interior of the indwelling catheter, and the indwelling catheter can be left inside the human body.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model secures an extremely thin metal ring to the outer surface of the indwelling catheter tip, allowing medical staff to observe the position of the metal ring using ultrasound guidance and X-rays. The metal ring provides strong imaging and positioning capabilities for the indwelling catheter, facilitating calibration and improving treatment efficiency. Furthermore, in the event of a breakage in the transparent indwelling catheter, the metal ring can also help medical staff locate the breakage point, significantly reducing their workload and making this invention worthy of widespread application.
[0015] 2. This utility model, through the constriction design, ensures a tight fit between the outer walls of the indwelling catheter and the steel needle, preventing the indwelling catheter from being blocked on the outside of the skin. Furthermore, the extremely thin metal collar ensures that the outer surfaces of the metal collar and the indwelling catheter are almost on the same plane, greatly reducing the friction between the metal collar / catheter and the patient's skin. This ensures that the steel needle can insert the indwelling catheter into the body, guaranteeing the success rate of puncture, reducing the patient's pain during puncture, and avoiding the waste of medical resources. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is an exploded view of the present invention;
[0018] Figure 3 This is a schematic diagram of the steel needle structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the metal collar structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the needle tip structure of this utility model.
[0021] In the diagram: 1. Connector; 2. Push plate; 3. Indwelling catheter; 4. Steel needle base; 5. Steel needle; 6. Needle tip; 7. Metal collar; 8. Narrowing. Detailed Implementation
[0022] 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.
[0023] like Figures 1 to 5 As shown, this utility model provides a puncture indwelling needle that is easy to visualize and locate, including a connector 1, a push plate 2 fixedly installed at the bottom of the connector 1, and an indwelling catheter 3 fixedly installed on the left side of the connector 1.
[0024] A metal collar 7 is fixedly fitted to the outer wall of the indwelling catheter 3. A steel needle base 4 is provided on the right side of the connector 1. A steel needle 5 is fixedly installed on the left side of the steel needle base 4. The left end of the steel needle 5 penetrates the interior of the connector 1 and is located inside the indwelling catheter 3.
[0025] When continuous nerve blocks and continuous peripheral nerve blocks are required, medical staff first determine the site to be anesthetized. Then, holding connector 1, the medical staff aligns the needle tip 6 with the patient's skin and inserts the steel needle 5 around the patient's nerve by pushing the push plate 2. During the insertion of the steel needle 5, the indwelling catheter 3, through its left constriction 8, fits tightly against the outer wall of the steel needle 5. The indwelling catheter 3 then enters the patient's body along with the steel needle 5. At this point, ultrasound guidance is required. Under ultrasound guidance, the medical staff can easily observe the position of the needle tip 6 and the metal collar 7. The medical staff ensures that the tip of the indwelling catheter 3 is located around the target point. After confirming the accurate positioning of the indwelling catheter 3, the medical staff withdraws the steel needle 5 through the steel needle base 4. At this point, the indwelling catheter 3 remains in place. Inside the patient's body, the outlet of the indwelling catheter 3 is fixed around the target nerve. Since the connector 1 and the indwelling catheter 3 are interconnected, medical staff can administer anesthetic drugs through the connector 1 to achieve multiple consecutive anesthesias. After a single treatment, when the patient walks or turns over, the position of the indwelling catheter 3 may deviate or even break. At this time, the metal ring 7 can exert its imaging and positioning capabilities. Due to the material of the metal ring 7, X-rays cannot penetrate the metal ring 7, making the image of the metal ring 7 black, which is greatly different from the patient's body structure. At this time, medical staff can observe and locate the metal ring 7 under ultrasound or X-ray conditions, so that medical staff can easily deal with the broken or misaligned indwelling catheter 3 based on the imaging of the metal ring 7.
[0026] By fastening an extremely thin metal collar 7 to the outer surface of the indwelling catheter 3 tip, medical staff can observe the position of the metal collar 7 through ultrasound guidance and X-rays. This allows the metal collar 7 to provide strong imaging and positioning capabilities for the indwelling catheter 3, facilitating calibration by medical staff and improving treatment efficiency. Furthermore, in the event of a breakage in the transparent indwelling catheter 3, the metal collar 7 can also help medical staff locate the breakage point, greatly reducing their workload and making this method worthy of widespread application.
[0027] The metal collar 7 is located on the outer wall of the left end of the indwelling catheter 3, and the metal collar 7 is extremely thin.
[0028] Since the metal collar 7 is located at the left tip of the indwelling catheter 3, medical staff can observe and locate the metal collar 7 under ultrasound or X-ray conditions, thereby further locating the outlet of the indwelling catheter 3.
[0029] The metal collar 7 is installed on the outer surface of the indwelling catheter 3 by fastening, and the metal collar 7 can be visualized by ultrasound and cannot be penetrated by X-rays.
[0030] The metal collar 7 is extremely thin, and the outer surfaces of the metal collar 7 and the indwelling catheter 3 are almost on the same plane, ensuring that the steel needle 5 can insert the indwelling catheter 3 into the human body. Furthermore, due to the material of the metal collar 7, radiation cannot penetrate the metal collar 7, making the image of the metal collar 7 black, which greatly distinguishes it from the patient's body structure and facilitates the positioning of medical staff.
[0031] The steel needle 5 is movably disposed inside the indwelling catheter 3, and the leftmost end of the indwelling catheter 3 is provided with a constriction 8, so that the indwelling catheter 3 and the steel needle 5 are tightly fitted together.
[0032] By setting the constriction 8, the steel needle 5 can stably insert the indwelling catheter 3 into the target position in the patient's body, preventing the indwelling catheter 3 from being blocked on the outside of the skin.
[0033] The constriction 8 ensures a tight fit between the outer walls of the indwelling catheter 3 and the steel needle 5, preventing the indwelling catheter 3 from being blocked on the outside of the skin. Furthermore, the extremely thin metal collar 7 ensures that the outer surfaces of the metal collar 7 and the indwelling catheter 3 are almost on the same plane, greatly reducing the friction between the metal collar 7, the indwelling catheter 3, and the patient's skin. This ensures that the steel needle 5 can insert the indwelling catheter 3 into the body, guaranteeing the success rate of puncture, reducing the patient's pain during puncture, and avoiding the waste of medical resources.
[0034] The left end of the steel needle 5 is fixedly equipped with a needle tip 6, which is located on the outside of the indwelling catheter 3.
[0035] The needle tip 6 allows the steel needle 5 to easily pierce the patient's skin.
[0036] Among them, the steel needle 5 can be withdrawn through the steel needle base 4 into the inside of the indwelling catheter 3, and the indwelling catheter 3 can be left inside the human body.
[0037] The steel needle 5 is withdrawn through the steel needle base 4, leaving the indwelling catheter 3 inside the human body to facilitate continuous and repeated drug injections.
[0038] Working principle and usage process of this utility model:
[0039] When continuous nerve blocks and continuous peripheral nerve blocks are required, medical staff first determine the site to be anesthetized. Then, holding connector 1, the medical staff aligns the needle tip 6 with the patient's skin and inserts the steel needle 5 around the patient's nerve by pushing the push plate 2. During the insertion of the steel needle 5, the indwelling catheter 3, through its left constriction 8, fits tightly against the outer wall of the steel needle 5. The indwelling catheter 3 then enters the patient's body along with the steel needle 5. At this point, ultrasound guidance is required. Under ultrasound guidance, the medical staff can easily observe the position of the needle tip 6 and the metal collar 7. The medical staff ensures that the tip of the indwelling catheter 3 is located around the target point. After confirming the accurate positioning of the indwelling catheter 3, the medical staff withdraws the steel needle 5 through the steel needle base 4. At this point, the indwelling catheter 3 remains in place. Inside the patient's body, the outlet of the indwelling catheter 3 is fixed around the target nerve. Since the connector 1 and the indwelling catheter 3 are interconnected, medical staff can administer anesthetic drugs through the connector 1 to achieve multiple consecutive anesthesias. After a single treatment, when the patient walks or turns over, the position of the indwelling catheter 3 may deviate or even break. At this time, the metal ring 7 can exert its imaging and positioning capabilities. Due to the material of the metal ring 7, X-rays cannot penetrate the metal ring 7, making the image of the metal ring 7 black, which is greatly different from the patient's body structure. At this time, medical staff can observe and locate the metal ring 7 under ultrasound or X-ray conditions, so that medical staff can easily deal with the broken or misaligned indwelling catheter 3 based on the imaging of the metal ring 7.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A puncture indwelling needle for easy imaging and positioning, comprising a connector (1), characterized in that: A push plate (2) is fixedly installed at the bottom of the connector (1), and an indwelling catheter (3) is fixedly installed on the left side of the connector (1). The outer wall of the indwelling catheter (3) is fixedly fitted with a metal collar (7), a steel needle base (4) is provided on the right side of the connector (1), a steel needle (5) is fixedly installed on the left side of the steel needle base (4), the left end of the steel needle (5) penetrates the interior of the connector (1), and the steel needle (5) is located inside the indwelling catheter (3).
2. The indwelling needle for easy imaging and positioning according to claim 1, characterized in that: The metal collar (7) is disposed on the outer wall of the left end of the indwelling catheter (3), and the metal collar (7) is extremely thin.
3. The indwelling needle for easy imaging and positioning according to claim 1, characterized in that: The metal collar (7) is fastened to the outer surface of the indwelling catheter (3), and the metal collar (7) can be ultrasonically visualized and cannot be penetrated by X-rays.
4. The indwelling needle for easy imaging and positioning according to claim 1, characterized in that: The steel needle (5) is movably disposed inside the indwelling catheter (3), and the leftmost end of the indwelling catheter (3) is provided with a constriction (8), and the indwelling catheter (3) and the steel needle (5) are tightly fitted together.
5. The indwelling needle for easy imaging and positioning according to claim 1, characterized in that: The left end of the steel needle (5) is fixedly equipped with a needle tip (6), which is located outside the indwelling catheter (3).
6. The indwelling needle for easy imaging and positioning according to claim 1, characterized in that: The steel needle (5) can be withdrawn through the steel needle base (4) into the inside of the indwelling catheter (3), which can be left inside the human body.