Adjustable transfusion port butterfly wing needle
By designing an adjustable needle and needle seat structure and internal adjustment mechanism in the infusion port butterfly needle, the problem of unstable needle depth control is solved, and a safer and more stable infusion effect is achieved.
Patent Information
- Application Number
- CN202420606240.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The existing infusion port butterfly wing needles are unstable in the control of the puncture depth, which can easily lead to the needle being too long or too short, affecting the infusion effect, and there are safety hazards in the fixing method.
An adjustable infusion port butterfly wing needle is designed, which uses a needle to slide and is connected to the needle seat, and is fixed and adjusted through an internal adjustment mechanism, including a compression spring, button and limiting tab.
Through the use of the adjustment mechanism, the penetration depth of the needle can be effectively controlled, the need for loosening and frequent adjustment of the needle can be reduced, and the stability and safety of the infusion can be improved.
Smart Images
Figure CN222871075U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to an adjustable infusion port butterfly wing needle. Background Art
[0002] The infusion port is a new infusion technology that has only been used clinically in recent years. It is a closed infusion device that is completely implanted in the human body. It is clinically suitable for patients who require long-term infusion and chemotherapy. Infusion through the infusion port can effectively avoid complications such as phlebitis and vascular sclerosis caused by long-term peripheral infusion, and can also prevent local tissue necrosis caused by drug extravasation during chemotherapy.
[0003] Most infusion ports are used in conjunction with butterfly needles to achieve infusion operations. A butterfly needle is an infusion needle used for catheter insertion, also known as a "wing needle" or "butterfly needle". In actual clinical use, medical staff need to strictly control the insertion depth of the butterfly needle, because when the insertion depth of the butterfly needle is too deep, it will pierce the base of the infusion port. When the insertion depth is too shallow, it will cause the infusion process to be blocked, and the butterfly needle needs to be adjusted frequently, affecting the patient's infusion effect. In order to control the insertion depth of the butterfly needle, medical staff will choose to add a gauze block between the butterfly needle and the human body to fix the depth of the butterfly needle. Considering that the gauze block may be deformed and displaced, this method has a greater safety hazard. Utility Model Content
[0004] In order to solve the deficiencies of the prior art, the utility model provides an adjustable infusion port butterfly wing needle. The adjustable infusion port butterfly wing needle is based on a structural design with adjustable needle depth, which can better control the insertion depth of the butterfly wing needle and facilitate the fixation and care of the butterfly wing needle.
[0005] The technical solution adopted by the utility model is as follows:
[0006] An adjustable infusion port butterfly wing needle comprises a needle seat and a needle penetrating the needle seat, wherein the needle is movably arranged and an adjustment mechanism is arranged on the needle seat for compressing or loosening the needle.
[0007] Based on the above technical solution, the needle can be clamped to prevent loosening during the process of inserting the needle into the human body through the needle seat. Further, after the needle is inserted, the needle is released, the needle is in an adjustable state, and can be appropriately retracted into the needle seat to reach a suitable depth. Finally, the needle is pressed and fixed at the suitable depth.
[0008] Specifically, the needle head and the needle seat are slidably connected, or a gap is provided between the needle head and the needle seat.
[0009] Based on the above technical solution, the movable setting of the needle in the needle seat can be realized.
[0010] Specifically, the adjustment mechanism is arranged inside the needle seat, and is used to tighten or loosen the portion of the needle that extends into the needle seat.
[0011] Specifically, the needle seat is provided with a mounting groove perpendicular to the needle head, and the mounting groove is a blind hole structure.
[0012] The adjustment mechanism includes: a compression spring arranged at the bottom of the installation slot, one end of which is fixedly connected to the bottom of the installation slot; a frame-shaped button, one end of which extends out of the installation slot and the other end of which is fixedly connected to the other end of the compression spring; and a limit plate, which is arranged in the frame structure of the button and fixedly connected to the needle seat through two ends. The needle penetrates the space of the limit plate near the compression spring.
[0013] Based on the above technical solution, the button is pressed into the installation slot, the button compresses the compression spring, and the frame structure of the button is separated from the needle. The compression spring stretches, the button extends out of the installation slot, and the frame structure of the button presses and fixes the needle to the limiting plate.
[0014] Furthermore, a receiving groove cooperating with the needle is provided on a side of the limiting piece facing the needle.
[0015] Specifically, the needle is L-shaped, including a needle tip section and a connecting section which are perpendicular to each other. The connecting section can be connected to an extension tube, and the end of the extension tube is provided with a Luer connector and a connector cap, and a thumb clip.
[0016] Specifically, the connecting section is located on the upper end surface of the needle seat.
[0017] Specifically, the needle seat is provided with a vertical movable groove, the needle tip section passes through the bottom of the movable groove, and the connecting section is located in the movable groove.
[0018] Specifically, the needle seat is a block structure with a flat bottom surface, and the needle tip section passes through the flat bottom surface.
[0019] Based on the above technical solution, a self-adhesive foam dressing and a release paper can be conveniently arranged on the contact surface between the needle seat and the skin, and the release paper can be torn off before use.
[0020] The beneficial effects of the utility model are as follows:
[0021] 1. The utility model adjusts the insertion depth of the butterfly needle of the infusion port in the injection seat of the infusion port through an adjustment mechanism with a limit fixing function, solves the problems of the needle being too long, easy to loosen, and the need for frequent adjustment of the butterfly needle, and reduces the clinical work of medical staff;
[0022] 2. The utility model can make the needle seat fit closely to the skin through the self-adhesive foam dressing, which is more convenient for the fixation and care of the butterfly wing needle, and avoids the safety hazards such as deformation and displacement caused by the fixation of the gauze block;
[0023] 3. The utility model can realize needle recovery protection, thereby achieving the purpose of clinical safe infusion and protecting medical staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of the adjustable infusion port butterfly wing needle provided by the utility model.
[0025] Figure 2 It is a schematic diagram of the structure of the needle part of the adjustable infusion port butterfly wing needle.
[0026] Figure 3 It is a structural schematic diagram of the adjustable infusion port butterfly wing needle when the adjustment mechanism of the adjustable infusion port butterfly wing needle compresses the needle.
[0027] Figure 4 It is a structural schematic diagram of the adjustment mechanism of the adjustable infusion port butterfly wing needle when the needle is released.
[0028] Attached Figure 1 , 2 , 3, and 4, the structures represented by each number are listed as follows:
[0029] 1. Needle seat; 2. Needle; 201. Needle tip section; 202. Connecting section; 3. Compression spring; 4. Button; 401. Frame structure; 5. Limiting piece; 6. Movable groove; 7. Extension tube; 8. Luer connector; 9. Connector cap; 10. Thumb clip. DETAILED DESCRIPTION
[0030] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0031] It should be noted that when a part or component is considered to be "connected", "located", or "assembled" on another part or component, it may be directly disposed on the other part or component or there may be a central part or component at the same time. The terms "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only.
[0032] Example 1
[0033] like Figure 1 , 2As shown in FIGS. 3 and 4 , the adjustable infusion port butterfly wing needle comprises a needle seat 1 and a needle 2 penetrating the needle seat 1. The needle 2 is movably arranged. The adjustment mechanism is arranged inside the needle seat 1, and is used to tighten or loosen the part of the needle 2 extending into the needle seat 1.
[0034] Example 2
[0035] like Figure 3 , 4 As shown, on the basis of Example 1, the needle seat 1 is provided with a mounting groove perpendicular to the needle 2, and the mounting groove is a blind hole structure. The adjustment mechanism includes: a compression spring 3 arranged at the bottom of the mounting groove, one end of the compression spring 3 is fixedly connected to the bottom of the mounting groove; a frame-shaped button 4, one end of which extends out of the mounting groove, and the other end of which is fixedly connected to the other end of the compression spring 3; and a limit plate 5, the limit plate 5 is arranged in the frame structure 401 of the button 4, and is fixedly connected to the needle seat 1 through two ends. The needle 2 passes through the space on the side of the limit plate 5 close to the compression spring 3. Based on this technical solution, by releasing the button, the limit plate can fix the needle on the needle seat and cannot move. By pressing the button, the limit plate and the needle can be loosened, and the needle can be retracted into the needle seat by external force. When the spring is released and the button is pressed, the limit plate can fix the needle again.
[0036] The side of the limiting piece 5 facing the needle 2 can also be provided with a receiving groove matched with the needle 2. The contact area with the needle can be increased, and the limiting is performed at the same time, so that the fixation is more stable.
[0037] Example 3
[0038] like Figure 1 , 2 As shown, on the basis of embodiments 1 and 2, the needle 2 is L-shaped, and includes a needle tip section 201 and a connecting section 202 which are perpendicular to each other. The connecting section 202 can be connected to an extension tube 7, and the end of the extension tube 7 is provided with a Luer connector 8 and a connector cap 9, and a thumb clip 10. The needle seat 1 is provided with a vertical movable groove 6, the needle tip section 201 passes through the bottom of the movable groove 6, and the connecting section 202 is located in the movable groove 6.
[0039] Example 4
[0040] The connecting section 202 is located on the upper end surface of the needle seat 1 .
[0041] Example 5
[0042] The needle seat 1 is a block structure with a flat bottom surface, and the needle tip section 201 penetrates the flat bottom surface. Based on this technical solution, it is convenient to set a self-adhesive foam dressing and release paper on the contact surface between the needle seat and the skin.
[0043] Example 6
[0044] The needle 2 and the needle seat 1 are slidably connected to facilitate the movement of the needle. Compared with the method of providing a gap between the needle 2 and the needle seat 1, the fixing effect of the needle will be better.
[0045] During the use of this utility model:
[0046] The needle is inserted into the injection seat of the infusion port. After the needle is adjusted to a satisfactory depth by observing the infusion effect, the button can be pressed to release the needle. The needle slowly retracts into the needle seat 1 until the foam dressing on the bottom of the needle seat 1 adheres to the skin. The button is released and the needle can be fixed again.
[0047] When the butterfly needle needs to be replaced after use, the button can be pressed to allow the needle to fully retract into the needle seat, thereby achieving clinical safety infusion and protecting medical staff.
[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.
Claims
1. An adjustable infusion port butterfly wing needle, characterized in that: The invention comprises a needle seat (1) and a needle (2) penetrating the needle seat (1); the needle (2) is movably arranged, and an adjustment mechanism is arranged on the needle seat (1) for tightening or loosening the needle (2).
2. The adjustable infusion port butterfly needle according to claim 1, characterized in that: The needle (2) and the needle seat (1) are slidably connected, or a gap is provided between the needle (2) and the needle seat (1).
3. The adjustable infusion port butterfly needle according to claim 1, characterized in that: The adjustment mechanism is arranged inside the needle seat (1) and is used to tighten or loosen the portion of the needle (2) extending into the interior of the needle seat (1).
4. The adjustable infusion port butterfly needle according to claim 3, characterized in that: The needle seat (1) is provided with a mounting groove perpendicular to the needle head (2), and the mounting groove is a blind hole structure; The regulating mechanism comprises: A compression spring (3) is arranged at the bottom of the installation groove, one end of the compression spring (3) is fixedly connected to the bottom of the installation groove; A frame-shaped button (4), one end of which extends out of the mounting slot and the other end of which is fixedly connected to the other end of the compression spring (3); and a limiting plate (5), wherein the limiting plate (5) is arranged in the frame structure (401) of the button (4) and is fixedly connected to the needle seat (1) via two ends; Correspondingly, the needle (2) passes through the space of the limiting plate (5) close to the compression spring (3).
5. The adjustable infusion port butterfly needle according to claim 4, characterized in that: A receiving groove cooperating with the needle (2) is provided on the side of the limiting plate (5) facing the needle (2).
6. The adjustable infusion port butterfly wing needle according to claim 4, characterized in that: The button (4) extends into the installation groove, the button (4) compresses the compression spring (3), and the frame structure (401) of the button (4) is separated from the needle (2).
7. The adjustable infusion port butterfly needle according to claim 4, characterized in that: The compression spring (3) is stretched, and the button (4) extends out of the installation slot, and the frame structure (401) of the button (4) presses and fixes the needle (2) onto the limiting plate (5).
8. The adjustable infusion port butterfly needle according to any one of claims 1 to 7, characterized in that: The needle (2) is L-shaped, and comprises a needle tip section (201) and a connecting section (202) which are perpendicular to each other; The connecting section (202) is located on the upper end surface of the needle seat (1); Alternatively, the needle seat (1) is provided with a vertical movable groove (6), the needle tip section (201) passes through the bottom of the movable groove (6), and the connecting section (202) is located in the movable groove (6).
9. The adjustable infusion port butterfly needle according to claim 8, characterized in that: The connecting section (202) is connected to an extension tube (7), and the end of the extension tube (7) is provided with a Luer connector (8) and a connector cap (9), and is also provided with a thumb clip (10).
10. The adjustable infusion port butterfly needle according to claim 9, characterized in that: The needle seat (1) is a block-shaped structure with a flat bottom surface, and the needle tip section (201) penetrates the flat bottom surface.