A lancing system

Abstract

This utility model discloses a puncture system for puncturing infusion ports. It is characterized by comprising a butterfly needle and an auxiliary device. The auxiliary device includes a fixedly connected handle and a limiter. The limiter is an arc-shaped structure with a single-sided opening, arranged around the infusion port. The limiter has a frustum-shaped structure expanding from a first end to a second end in its axial direction, and its sidewalls have several deformation slits. The second end is used to contact the infusion port, and the first end has a central opening for the butterfly needle tip to pass through. This utility model uses the positioning function of the auxiliary device to guide medical personnel to the needle insertion position. Simultaneously, the frustum-shaped structure and deformation slits of the auxiliary device allow medical personnel to apply axial force to the limiter, driving the second end of the limiter, which contacts the infusion port, to expand circumferentially outward to tighten the infusion port and skin, thus enabling medical personnel to accurately puncture the infusion port with the butterfly needle.

Description

Technical Field

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

[0002] Port-a-cath implantation is a clinical procedure for patients requiring long-term intravenous infusion and chemotherapy, involving the implantation of a drug delivery device. This improves patient comfort and quality of life. Currently, the lifespan of port-a-cath is often measured in years, and the injection port can be punctured 2000-3000 times. During infusion, the butterfly needle inserted into the injection port needs to be replaced periodically, every few days, to maintain medical cleanliness. However, when inserting the butterfly needle into the port-a-cath, the patient's skin needs to be taut to secure the port and injection port for optimal puncture results. Simultaneously, the butterfly needle must be held and inserted vertically from the center of the port-a-cath to penetrate the septum and reach the bottom of the reservoir. This requires considerable experience. For some medical personnel, variations in force and direction of operation can lead to problems such as barbed needle tip or failed punctures requiring re-insertion, causing patient pain and affecting the lifespan of the port-a-cath.

[0003] Therefore, how to reduce the difficulty of accurate puncture of the butterfly needle in the infusion port is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a puncture system to reduce the difficulty of accurate puncture of the butterfly needle in the infusion port.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A puncture system for puncturing an infusion port includes a butterfly needle and an auxiliary device. The auxiliary device includes a handle and a limiter that are fixedly connected. The limiter is an arc-shaped structure with a single-sided opening arranged around the infusion port. The limiter is a frustum-shaped structure that expands from a first end to a second end in its axial direction, and the sidewall of the limiter has several deformation slits. The second end is used to contact the infusion port, and the first end has a central opening for the needle tip of the butterfly needle to pass through.

[0007] Preferably, in the above-described puncture system, the second end of the limiter is fixedly provided with a fitting portion, the fitting portion extending in a direction away from the central axis of the limiter, and the deformation joint covers and separates the fitting portion.

[0008] Preferably, in the above-described puncture system, multiple deformation seams are evenly arranged along the circumference of the limiter.

[0009] Preferably, in the above-described puncture system, the handle is fixedly disposed at the first end of the limiter.

[0010] Preferably, in the above-described puncture system, the handle is arranged parallel to the central axis of the limiter.

[0011] Preferably, in the above-described puncture system, the needle has an L-shaped structure, and the tip of the needle is perpendicular to the tube of the butterfly needle.

[0012] Preferably, in the above-described puncture system, the first end of the limiter has a preset thickness in its axial direction, and the tip of the needle is inserted into the infusion port and blocked and limited by the first end of the limiter to be spaced apart from the bottom of the infusion port's reservoir.

[0013] Preferably, in the above-described puncture system, the side of the butterfly needle with its handle facing the infusion port is provided with a protective layer.

[0014] Preferably, in the above-mentioned puncture system, the extension tube of the butterfly needle is provided with at least two branch tubes.

[0015] Preferably, in the above-described puncture system, the limiter is made of transparent polycarbonate or polypropylene.

[0016] As can be seen from the above technical solution, the puncture system provided by this utility model mainly includes a butterfly needle and an auxiliary device. The butterfly needle is used to puncture the infusion port, while the auxiliary device is used to position and assist the puncture of the butterfly needle. Specifically, the auxiliary device includes a handle and a limiter. The limiter is an arc-shaped structure with a single-sided opening, allowing it to be positioned around the infusion port through its opening. Simultaneously, the limiter is a frustum-shaped structure extending along its axial direction, specifically, the limiter expands axially from the first end to the second end, and the sidewall of the limiter has several deformation slits extending along its axial direction. The second end of the limiter is extended to divide the second end position into multiple independent structures. Based on this, the second end of the limiter is used to contact the skin around the infusion port. When puncture is required, medical staff apply axial downward pressure to the limiter through the handle, which drives the second end of the limiter to expand and deform, thereby tightening and arching the skin around the infusion port. Medical staff can locate the infusion port through the arc-shaped surrounding area of ​​the limiter, and the tightened and arched infusion port reduces the difficulty of puncture and improves the accuracy of the puncture process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the auxiliary device structure provided in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the butterfly wing needle structure provided in an embodiment of the present invention.

[0020] Among them, 10-butterfly wing needle; 110-needle tip; 120-needle handle; 130-branch tube; 20-auxiliary device; 210-handle; 220-limiter; 2210-first end; 2220-second end; 230-expansion joint; 240-fitting part. Detailed Implementation

[0021] The core of this invention lies in disclosing a puncture system to reduce the difficulty of accurate puncture of the butterfly needle in the infusion port.

[0022] To enable those skilled in the art to better understand the present invention, embodiments of the present invention will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the configurations shown in the following embodiments are not limited to those necessary for the solution of the invention as described in the claims.

[0023] like Figure 1 and Figure 2 As shown, the puncture system provided in this embodiment of the invention is used to puncture an infusion port, enabling patients to conveniently and accurately change the needle 110. Specifically, the puncture system mainly includes a butterfly needle 10 and an auxiliary device 20. The butterfly needle 10 is the main actuating component of the puncture system, used to accurately puncture the infusion port to achieve fluid infusion. The auxiliary device 20 is a key component used to assist the butterfly needle 10 in the puncture operation, and its effective structural design improves the accuracy and stability of the puncture. The auxiliary device 20 specifically consists of a handle 210 and a limiter 220 that are fixedly connected. The handle 210 has a rod-shaped structure to facilitate gripping and operation by medical personnel. The handle 210 can be provided with anti-slip texture or covered with a sponge pad to improve the gripping comfort of medical personnel and provide a stable force and support effect for the puncture process. The limiter 220 has an arc-shaped structure with a single-sided opening, so that the limiter 220 can be set around the infusion port through the opening area, thereby limiting and protecting the infusion port during the puncture process.

[0024] It should be noted that the surrounding structure of the limiter 220 for the infusion port not only surrounds and protects the infusion port, but also, through the top opening of the limiter 220 in the axial direction, positions the butterfly needle 10 to a certain extent, indicating the puncture position of the butterfly needle 10.

[0025] Furthermore, in some embodiments of this utility model, the limiter 220 is configured as a frustum structure, specifically a frustum structure that expands axially from the first end 2210 to the second end 2220. The relatively narrow first end 2210 is positioned at the top in the vertical direction away from the patient's skin, and its narrower size can improve the accuracy of the needle tip 110 of the butterfly needle 10 entering the body. The relatively wider second end 2220 is used to achieve a smooth, surrounding placement of the infusion port, while avoiding damage to the infusion port due to the smaller size of the second end 2220. Based on the above structure, the side wall of the limiter 220 is also provided with several deformation slits 230, which connect from the side wall of the limiter 220 to the second end 2220 of the limiter 220. The design of the deformation slits 230 provides the limiter 220 with a certain elastic deformation capacity, that is, the second end 2220 of the limiter 220 can expand when subjected to pressure. Medical staff can contact the skin area of ​​the patient where the infusion port is set through the second end 2220 of the limiter 220. After the limiter 220 contacts the target area, the second end 2220 of the limiter 220 is driven to expand and deform by applying force to the handle 210. The expanded and deformed second end 2220 of the limiter 220 can tighten the skin of the patient where the infusion port is set, thereby arching the infusion port and providing a stable limiting effect for the infusion port, thus providing stable support for the puncture of the butterfly needle 10.

[0026] Furthermore, it should be noted that the first end 2210 of the limiter 220 also has a central opening. The opening area of ​​the first end 2210 can be relatively large to provide some indication of the puncture position of the butterfly needle 10. At the same time, the size and shape of the opening of the first end 2210 can also match the needle tip 110 of the butterfly needle 10 to allow the needle tip 110 of the butterfly needle 10 to be accurately inserted. This structure not only ensures that the butterfly needle 10 can smoothly enter the infusion port, but also limits the puncture depth of the needle tip 110 through the structure of the limiter 220, preventing excessive puncture by the needle tip 110 from damaging the internal structure of the infusion port.

[0027] In practical use, medical staff first surround the limiting device 220 of the assist device 20 around the infusion port, and use the operating handle 210 to ensure the position of the limiting device 220 is fixed. The infusion port is arched by the expansion action of the second end 2220 of the limiting device 220. Then, the needle 110 of the butterfly needle 10 is passed through the opening of the first end 2210 of the limiting device 220 to begin the puncture operation. Throughout the puncture process, the structural design of the limiting device 220 can effectively guide the puncture direction of the butterfly needle 10 and limit the puncture depth of the needle 110, thereby improving the success rate and safety of the puncture. At the same time, the design of the handle 210 also provides medical staff with a stable grip point, facilitating operation and control of the puncture process. This effectively solves the problems of complex operation, low puncture success rate, and easy damage to the infusion port in the existing technology, providing a safer, more reliable, and more efficient solution for medical infusion operation.

[0028] Furthermore, to improve the contact effect between the limiter 220 and the patient's skin, and thus enhance its limiting and arching effect on the infusion port, in some embodiments of this invention, the limiter 220 is further fixedly provided with a fitting portion 240 at its second end 2220. This further enhances the fitting effect between the limiter 220 and the surrounding area of ​​the infusion port, thereby improving the stability and reliability of the puncture process. Specifically, the fitting portion 240 extends from the second end 2220 of the limiter 220 in a direction away from the central axis of the limiter 220. That is, the fitting portion 240 increases the contact area between the limiter 220 and the surrounding area of ​​the infusion port based on the second end 2220, allowing the limiter 220 to better contact the structure or skin around the infusion port, forming a tighter fit. At the same time, the fitting portion 240 can fully contact the skin surface around the infusion port and provides a larger contact area through its extended structure, thereby better dispersing pressure and avoiding the risk of infusion port deviation due to excessive local pressure.

[0029] Furthermore, to ensure the expansion effect of the second end 2220 of the limiter 220, the expansion joint 230 not only covers the main sidewall of the limiter 220, but also extends to the fitting portion 240, separating the fitting portion 240 into multiple independent units. These separate fitting portions 240 can move along with the second end 2220 of the limiter 220, simultaneously expanding under vertical pressure to meet the requirements for arched puncture of the infusion port. It should be noted that the extended structure of the fitting portion 240 and the extended design of the expansion joint 230 not only enhance the fitting effect between the limiter 220 and the surrounding area of ​​the infusion port, but also improve the overall performance and service life of the puncture system. In actual medical operations, this design provides medical personnel with a more convenient and reliable puncture tool, effectively reducing operational risks and improving the safety and efficiency of medical infusion.

[0030] Furthermore, in some embodiments of this utility model, the limiter 220 of the puncture system has multiple deformation slits 230 on its sidewall to further improve the elasticity and adaptability of the limiter 220. Simultaneously, the multiple deformation slits 230 are evenly distributed along the circumference of the limiter 220. It should be noted that the uniform distribution of the deformation slits 230 allows the limiter 220 to elastically deform uniformly in all directions. Uniform deformation capability is crucial for adapting to changes in the shape and size of the infusion port. When there are imbalances in the arrangement of the infusion port, or when the surface of the infusion port has slight irregularities, the evenly distributed deformation slits 230 allow the limiter 220 to uniformly adjust its shape in all directions, thereby better conforming to the surface of the infusion port. This design not only improves the fit between the limiter 220 and the infusion port but also reduces stress concentration problems caused by uneven local deformation, thereby extending the service life of the limiter 220. In addition, the evenly distributed expansion joints 230 can effectively reduce vibration and shaking during puncture, thereby further improving the stability and safety of puncture.

[0031] It should also be noted that, from a structural design perspective, the uniform distribution of the expansion joint 230 makes it easier to achieve precise machining and forming of the limiter 220 during manufacturing. This design not only improves production efficiency but also reduces production costs. In practical use, medical personnel can operate the puncture system more conveniently without worrying about puncture failure or damage to the infusion port due to uneven deformation of the limiter 220.

[0032] Furthermore, in the puncture system provided in this embodiment of the present invention, the auxiliary device 20 mainly consists of a handle 210 and a limiter 220. The handle 210 is fixedly disposed at the first end 2210 of the limiter 220 to facilitate medical personnel to hold and operate the puncture system. Since the first end 2210 of the limiter 220 is disposed away from the second end 2220, when the second end 2220 is in contact with the skin around the infusion port, the force applied to the first end 2210 by the handle 210 can have a longer force adjustment path, thus avoiding the risk of sudden force changes caused by directly applying force to the second end 2220. This can effectively reduce operational risks and improve the safety and efficiency of medical infusion.

[0033] Based on the above embodiments, the handle 210 is preferably set parallel to the central axis of the limiter 220, that is, the handle 210 is set perpendicular to the plane of the first end 2210 of the limiter 220. This not only allows medical personnel to apply force more naturally when holding the handle 210, thereby more accurately controlling the puncture direction and force of the butterfly needle 10; but also ensures that when medical personnel apply vertical force by holding the handle 210, the second end 2220 of the limiter 220 can be stressed and spread evenly to the periphery, thereby achieving uniform arching of the infusion port, reducing the risk of deflection of the infusion port during the arching process of the limiter 220, and improving the puncture accuracy of medical personnel.

[0034] Furthermore, in the puncture system provided in this embodiment of the present invention, the needle tip 110 of the butterfly needle 10 is configured with an L-shaped structure, with its tip perpendicular to the tube body of the butterfly needle 10. This optimizes the shape of the needle tip 110, thereby improving the puncture effect and safety of the puncture system. Specifically, the L-shaped needle tip 110 design allows the tip of the needle tip 110 to be more accurately aligned with the puncture point of the infusion port. During the puncture process, medical personnel do not need to insert the needle perpendicular to the limiter 220. Instead, they can adopt a natural posture and use the L-shaped bending structure of the needle tip 110 to maintain the smooth extension of the tube body while achieving vertical needle insertion. This eliminates the need, as in the prior art, for bending part of the tube body to maintain the vertical insertion state of the needle tip 110 when it is on the extension structure of the tube body. This facilitates the operation of medical personnel and allows for a smoother insertion into the infusion port during the puncture process, thereby reducing friction and damage to the surface of the infusion port.

[0035] It should also be noted that, due to the L-shaped structure of the needle 110, after the area of ​​the needle 110 perpendicular to the tube body is fully inserted into the infusion port, the needle 110 in the extension direction of the tube body can abut against the top wall of the first end 2210 of the limiter 220, thus restricting the insertion of the needle 110 perpendicular to the tube body. By setting the length of the needle 110 perpendicular to the tube body, medical personnel can limit the insertion of the needle 110 by the area abutting against the first end 2210 of the limiter 220 after operating the butterfly needle 10 until the area of ​​the needle 110 perpendicular to the tube body is fully inserted into the infusion port, without puncturing the infusion port. In other words, medical personnel can operate the needle 110 with full force without controlling the insertion depth, reducing the risk of puncture problems caused by the varying skill levels of medical personnel.

[0036] Based on the above embodiments, the first end 2210 of the limiter 220 is used to limit a portion of the needle 110 to maintain the insertion depth of the needle 110. Therefore, in some embodiments of this utility model, the first end 2210 of the limiter 220 has a preset thickness in its axial direction to provide a clear limiting effect for the needle 110 of the butterfly needle 10. When the needle 110 of the butterfly needle 10 penetrates the infusion port and reaches a certain depth, the tip of the needle 110 will be blocked by the first end 2210 of the limiter 220, thereby preventing the needle 110 from over-puncturing, thus protecting the bottom of the reservoir and preventing over-puncture of the infusion port, and maintaining the normal use of the infusion port.

[0037] It should be noted that by setting a preset thickness for the first end 2210 of the limiter 220, medical personnel can more intuitively feel the change in resistance of the needle 110 during the puncture process. When the tip of the needle 110 contacts the first end 2210 of the limiter 220, medical personnel can clearly feel the increase in resistance, thus stopping the puncture in time. This limiting effect not only improves the safety of the puncture but also effectively reduces the risk of damage to the infusion port due to improper puncture depth.

[0038] Furthermore, in some embodiments of this utility model, a protective layer is provided on the side of the handle 120 of the butterfly needle 10 facing the infusion port. The protective layer is used to provide additional protection for the infusion port during the puncture of the butterfly needle 10. At the same time, when the puncture is completed and the butterfly needle 10 is fixed, the handle 120 of the butterfly needle 10 can contact the patient's skin through the protective layer. When the handle 120 is bonded with tape, the presence of the protective layer can distribute pressure and avoid friction between the handle 120 and the patient's skin, thus improving the patient's comfort.

[0039] Furthermore, in some embodiments of this invention, at least two branch tubes 130 are provided on the extension tube of the butterfly needle 10, i.e., on the infusion tube, to enable the simultaneous infusion of multiple medications and improve infusion efficiency. It should also be noted that the limiter 220 is made of transparent polycarbonate or polypropylene to facilitate clear observation of the infusion port by medical personnel during puncture procedures, further improving the accuracy of puncture.

[0040] The terms "first," "second," "left side," and "right side," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A puncture system for puncturing an infusion port, characterized by, The device includes a butterfly needle and an auxiliary device. The auxiliary device includes a handle and a limiter that are fixedly connected. The limiter is an arc-shaped structure with a single-sided opening to surround the infusion port. The limiter is a frustum structure that expands from a first end to a second end in its axial direction, and the side wall of the limiter has several deformation slits. The second end is used to contact the skin around the infusion port, and the first end has a central opening for the needle tip of the butterfly needle to pass through.

2. The lancing system of claim 1, wherein, The second end of the limiter is fixedly provided with a fitting part, which extends in a direction away from the central axis of the limiter, and the expansion joint covers and separates the fitting part.

3. The lancing system of claim 1, wherein, The multiple expansion joints are evenly arranged along the circumference of the limiter.

4. The puncture system as described in claim 1, characterized in that, The handle is fixedly mounted on the first end of the limiter.

5. The lancing system of claim 4, wherein the lancet is configured to be inserted into the skin of the patient to a depth of about 0.1 mm to about 1.5 mm. The handle is positioned parallel to the central axis of the limiter.

6. The lancing system of claim 1, wherein, The needle has an L-shaped structure, and the tip of the needle is perpendicular to the tube of the butterfly needle.

7. The lancing system of claim 6, wherein, The first end of the limiter has a preset thickness in its axial direction. The tip of the needle is inserted into the infusion port and blocked and limited by the first end of the limiter to be spaced apart from the bottom of the infusion port's reservoir.

8. The lancing system of claim 1, wherein, The butterfly needle has a protective pad on the side of the needle handle facing the infusion port.

9. The lancing system of claim 1, wherein, The extension tube of the butterfly needle is provided with at least two branch tubes.

10. The lancing system of claim 1, wherein, The limiter is made of transparent polycarbonate or polypropylene.

Images