Infusion port with puncture positioning function

Abstract

The utility model belongs to the technical field of medical instruments, and particularly discloses an infusion port with puncture positioning, which comprises an infusion port main body, a butterfly wing needle and a positioning component, a puncture part is arranged at the upper end of the infusion port main body, the butterfly wing needle is used for puncturing the puncture part, a positioning part is arranged in the middle of the butterfly wing needle, and the positioning component comprises a positioning seat and a sliding sleeve. The outer side of the positioning seat is sleeved with the sliding sleeve in a sliding mode, the positioning seat is provided with a vertically-through inner cavity, a guide ring and a plurality of clamping pieces evenly distributed in the circumferential direction are arranged in the inner cavity, the upper ends of the clamping pieces are hinged to the positioning seat, the guide ring abuts against and surrounds the multiple clamping pieces, the guide ring can push the lower ends of the multiple clamping pieces to contract inwards, and the positioning seat is provided with a vertical sliding groove. The guide ring is provided with a connecting rod penetrating through the sliding groove, the connecting rod is fixed to the sliding sleeve, an inserting groove is formed in the upper end of the sliding sleeve, and the positioning part is matched with the inserting groove in shape. The lower ends of the multiple clamping pieces contract inwards to clamp the infusion port body, the positioning part of the butterfly wing needle is inserted into the sliding groove, and the butterfly wing needle can accurately puncture.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an infusion port with puncture positioning. Background Art

[0002] An implantable venous port (VPA), also known as an implantable central catheter system, is a fully implantable vascular access system that provides patients with long-term venous access. It is a clinical infusion system that has been developed in recent years. VPAs are widely used in clinical practice due to their distinct advantages: simple operation, requiring only a subcutaneous puncture for infusion, avoiding repeated punctures and potential vascular damage; and they can reduce drug extravasation and prevent the development of peripheral phlebitis.

[0003] Currently, during the infusion port puncture process, it is necessary to first press with hands to find the infusion port, and then the medical staff pinches the infusion port with one hand and pinches the butterfly needle with the other hand. During the operation, the fingers can easily block the line of sight, resulting in incorrect puncture position, causing problems with subsequent infusion, and affecting the patient's experience. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an infusion port with puncture positioning, which has a positioning component that assists in puncture positioning and helps medical staff to achieve accurate puncture.

[0005] According to an embodiment of the present invention, an infusion port with puncture positioning includes an infusion port body, a butterfly wing needle and a positioning assembly, the upper end of the infusion port body is provided with a puncture part, the butterfly wing needle is used to puncture the puncture part, the middle part of the butterfly wing needle is provided with a positioning part, the positioning assembly includes a positioning seat and a sliding sleeve, the sliding sleeve is slidably sleeved on the outer side of the positioning seat, the positioning seat has an inner cavity that passes through from top to bottom, a guide ring and a plurality of circumferentially distributed clamping pieces are provided in the inner cavity, the upper end of the clamping piece is hinged to the positioning seat, the guide ring abuts and surrounds a plurality of clamping pieces, the guide ring can push the lower ends of the plurality of clamping pieces to retract inward, the positioning seat is provided with a vertical sliding groove, the guide ring is provided with a connecting rod passing through the sliding groove, the connecting rod is fixed to the sliding sleeve, the upper end of the sliding sleeve is provided with a slot, and the positioning part matches the shape of the slot.

[0006] The infusion port with puncture positioning according to the embodiment of the present invention has at least the following beneficial effects:

[0007] During use, the positioning assembly is first placed on the skin above the infusion port body. The medical staff pushes the sliding sleeve downward with their hands, and the slide drives the guide ring. The guide ring pushes the lower ends of multiple clamping pieces to retract inward. Multiple clamping pieces clamp the infusion port body to accurately position it. Then the medical staff inserts the butterfly wing needle from the inner cavity of the positioning seat, and the positioning part of the butterfly wing needle is inserted into the slide groove as a guide for the butterfly wing needle, so that the butterfly wing needle can accurately puncture into the puncture part of the infusion port body, simplifying the operation of the medical staff and improving the accuracy of puncture.

[0008] According to some embodiments of the present invention, the positioning portion is a plastic sheet fixed to the butterfly wing needle, plug-in sheets are formed on both sides of the plastic sheet, and the slot is a straight slot that matches the plug-in sheets.

[0009] According to some embodiments of the present invention, the positioning portion is a plastic block fixed to the butterfly wing needle, the cross-section of the plastic block is rectangular, and the slot is a rectangular groove that matches the plastic block.

[0010] According to some embodiments of the present invention, a detachable top cover is connected to the upper end of the sliding sleeve, the slot is provided on the top cover, and the slot passes through the top cover.

[0011] According to some embodiments of the present invention, the upper outer side surface of the clamping piece is set as an inclined surface, the inner wall surface of the guide ring is set as a conical surface, and the small end of the conical surface is on the upper side.

[0012] According to some embodiments of the present invention, the positioning seat is connected to two clamping pieces, and the positioning seat is provided with two sliding grooves, and the two clamping pieces and the two sliding grooves are distributed on both sides of the positioning seat.

[0013] According to some embodiments of the present invention, the positioning seat is connected to four clamping pieces, and the four clamping pieces form a circle, and the width of the lower end of the clamping piece is at least 50% greater than the width of the upper end.

[0014] According to some embodiments of the present invention, the lower end of the clamping piece extends beyond the positioning seat, and the lower end of the clamping piece is at least 2 mm lower than the positioning seat.

[0015] According to some embodiments of the present invention, a silicone pad is fixed to the lower end of the clamping piece, and the silicone pad covers the inner side surface of the lower end of the clamping piece. The lower end surface of the silicone pad is set to a smooth arc surface.

[0016] According to some embodiments of the present invention, the positioning seat and the clamping piece are both made of transparent materials to facilitate observation of the puncture status of the butterfly needle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 is a cross-sectional view of a positioning assembly in some embodiments of the present invention;

[0020] Figure 2 yes Figure 1 A top view of the positioning assembly;

[0021] Figure 3 This is a schematic diagram of the structure of the butterfly wing needle in some embodiments of the present invention;

[0022] Figure 4 This is a schematic diagram of the infusion port in use according to an embodiment of the utility model;

[0023] Figure 5 is a cross-sectional view of a positioning assembly in some other embodiments of the present utility model;

[0024] Figure 6 yes Figure 5 Top view of the positioning component.

[0025] Reference numerals:

[0026] Infusion port body 100, puncture portion 110;

[0027] Butterfly wing needle 200, positioning portion 210;

[0028] Positioning assembly 300 , positioning seat 310 , sliding groove 311 , sliding sleeve 320 , slot 321 , top cover 322 , guide ring 330 , clamping piece 340 , connecting rod 350 . DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, assembling, and matching should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figures 1 to 4 As shown, some embodiments of the present invention provide an infusion port with puncture positioning, which helps medical staff to accurately position and facilitates vertical puncture.

[0034] The infusion port with puncture positioning includes an infusion port body 100, a butterfly needle 200 and a positioning assembly 300. The upper end of the infusion port body 100 is provided with a puncture portion 110, the butterfly needle 200 is used to puncture the puncture portion 110, the middle part of the butterfly needle 200 is provided with a positioning portion 210, and the positioning assembly 300 includes a positioning seat 310 and a sliding sleeve 320. The sliding sleeve 320 is slidably mounted on the outer side of the positioning seat 310. The positioning seat 310 has an inner cavity that runs through from top to bottom, and a guide ring 330 and multiple guide rings are provided in the inner cavity. The clamping pieces 340 are evenly distributed around the circumference, and the upper ends of the clamping pieces 340 are hinged to the positioning seat 310. The guide ring 330 abuts against and surrounds the multiple clamping pieces 340. The guide ring 330 can push the lower ends of the multiple clamping pieces 340 to retract inward. The positioning seat 310 is provided with a vertical slide 311. The guide ring 330 is provided with a connecting rod 350 passing through the slide 311. The connecting rod 350 is fixed to the sliding sleeve 320. The upper end of the sliding sleeve 320 is provided with a slot 321. The positioning part 210 matches the shape of the slot 321. The infusion port with puncture positioning is designed to improve the accuracy and convenience of puncture during use. The infusion port body 100 is a basic component, and a puncture part 110 is provided at the upper end to facilitate the precise entry of the butterfly needle 200. The butterfly wing needle 200 is used as a puncture tool, and the positioning part 210 integrated in the middle cooperates with the slot 321 of the positioning assembly 300 for accurate guidance, so that the butterfly wing needle 200 can accurately pierce the skin and the puncture part 110.

[0035] The introduction of the positioning assembly 300 is a key design feature of the infusion port. The positioning assembly 300 consists of a positioning seat 310 and a sliding sleeve 320. The positioning seat 310 features a targeted internal design, with a continuous inner cavity providing a passageway for the butterfly needle 200. The sliding groove 311 provided on the positioning seat 310 cooperates with the positioning portion 210 of the butterfly needle 200 to accurately position and guide the butterfly needle 200. The upper end of the clamping piece 340 is hinged to the positioning seat 310, allowing its lower end to flexibly retract inward when subjected to external force. The guide ring 330, driven by a slide, serves as the driving force for the retraction of the clamping pieces 340. It abuts and surrounds multiple clamping pieces 340, and through the linkage of the connecting rod 350 and the sliding sleeve 320, precise control of the retraction of the lower end of the clamping piece 340 is achieved. When the sliding sleeve 320 slides along the outer side of the positioning seat 310 , the connecting rod 350 fixed on the sliding sleeve 320 drives the guide ring 330 to move downward, thereby pushing the lower end of the clamping piece 340 to retract inward.

[0036] When the infusion port with puncture positioning is in use, the medical staff first places the positioning assembly 300 on the skin above the infusion port body 100. The inner diameter of the positioning seat 310 is larger than the liquid port body 100 and is directly put on the liquid port body 100 to have a positioning effect; the medical staff pushes the sliding sleeve 320 downward with one hand, and the slide drives the guide ring 330. The guide ring 330 pushes the lower ends of the multiple clamping pieces 340 to retract inward to clamp the liquid port body 100. Then the medical staff uses the other hand to insert the butterfly wing needle 200 from the inner cavity of the positioning seat 310, and the positioning part 210 of the butterfly wing needle 200 is inserted into the slide groove 311 as a guide for the butterfly wing needle 200, so that the butterfly wing needle 200 can accurately puncture into the puncture part 110 of the infusion port body 100, simplifying the operation of the medical staff and improving the accuracy of the puncture.

[0037] After the puncture is completed, the positioning assembly 300 is moved upward to separate from the butterfly needle 200, and then the butterfly needle 200 is connected to the infusion bottle to perform infusion, which is easy to operate.

[0038] When further refining the embodiments of the present invention, various design optimizations are performed with respect to the specific shape of the positioning portion 210 and the matching method with the slot 321 .

[0039] In some embodiments of the present invention, the positioning portion 210 is designed as a plastic sheet fixed to the butterfly needle 200. This plastic sheet is lightweight and economical, with carefully machined inserts on both sides. These inserts are flat and easily inserted into and securely secured slots 321 on the sliding sleeve 320. Specifically, the slot 321 is designed as a slot that matches the shape of the insert, ensuring that after puncture and positioning, the butterfly needle 200 is securely locked thanks to the tight fit between the insert and the slot.

[0040] Furthermore, in other embodiments of the present invention, the positioning portion 210 adopts another form, namely, a plastic block fixed to the butterfly needle 200. This plastic block is designed to be thicker, and its cross-section can be designed to be rectangular, trapezoidal, non-circular, or other shapes to increase the contact area with the slot 321, thereby further improving the stability of the positioning. Correspondingly, the slot 321 on the sliding sleeve 320 is also designed to be a rectangular groove, trapezoidal groove, non-circular groove, etc. that matches the cross-section of the plastic block to ensure that the plastic block can be accurately inserted and fixed within the slot 321. This combination of a rectangular groove and a rectangular plastic block not only enhances the stability of the connection, but also simplifies the assembly process and improves the efficiency of use.

[0041] To sum up, whether it is a combination of a plug-in piece and a straight slot or a design of a rectangular plastic block and a rectangular slot, the utility model achieves precise positioning and firm locking of the butterfly needle 200 in the infusion port through ingenious structural design, providing convenience and safety for medical operations.

[0042] In some embodiments of the present invention, the sliding sleeve 320 serves as a core component, and its upper end is specially designed with a removable top cover 322. This top cover 322 is not only convenient for installation and maintenance, but also serves an important function. A slot 321 is defined on its upper surface and runs through the entire top cover 322. The shape of the slot 321 matches the shape of the connector, ensuring that after puncture and positioning, the butterfly needle 200 can be securely locked by the tight fit between the connector and the slot.

[0043] In some embodiments of the present invention, the upper outer side surface of the clamping piece 340 is designed as a slope. At the same time, the inner wall surface of the guide ring 330 is designed as a conical surface, and the small end of the conical surface is located on the upper side. The slope cooperates with the conical surface. When the guide ring 330 moves downward, it can push the lower ends of the multiple clamping pieces 340 to gradually contract to push the skin to arch. The conical design not only perfectly matches the slope of the clamping piece 340 to form a progressive clamping mechanism, but also ensures stability and reliability during the clamping process. As the clamping piece 340 slides downward along the conical surface, the lower ends of the multiple clamping pieces 340 gradually contract. Medical staff can control the degree of contraction according to actual conditions, which is convenient for use.

[0044] In some embodiments of the present invention, a positioning base 310 connects two clamping pieces 340, and a corresponding slide 311 is provided on each side of the positioning base 310. This two-sided layout makes the clamping process more balanced while reducing the impact on vision. The symmetrical arrangement of the clamping pieces 340 and the slide 311 ensures even distribution of clamping force, reducing the risk of damage caused by uneven force. Medical personnel can operate the sliding sleeve 320 to slide the clamping piece 340 within the slide 311, thereby achieving a secure clamping of the object.

[0045] In other embodiments of the present invention, a structure using four clamping pieces 340 is designed. The four clamping pieces 340 are cleverly arranged in a circle to form an enclosing clamping structure. It is understood that the lower end width of the clamping piece 340 is designed to be at least 50% greater than the upper end width. This design increases the width and contact area of ​​the lower end of the clamping piece 340, facilitating skin clamping and improving stability.

[0046] In some embodiments of the present invention, the lower end of the clamping piece 340 is designed to extend beyond the positioning seat 310 by a certain distance, and this excess dimension is at least 2 mm. This design detail has a significant effect, allowing the clamping piece 340 to protrude beyond the positioning seat 310, which is conducive to clamping the liquid port body 100. Moreover, after the multiple clamping pieces 340 are retracted, their height will be shortened. Therefore, the lower end of the clamping piece 340 is designed to extend beyond the positioning seat 310.

[0047] In some embodiments of the present invention, a resilient silicone pad is secured to the lower end of the clamping piece 340. This pad not only tightly covers the inner side of the lower end of the clamping piece 340, but also ensures a soft and comfortable contact surface between the clamping piece 340 and the liquid harbor body 100. Furthermore, the lower end of the silicone pad is meticulously designed as a smooth, arc-shaped surface. This design not only enhances aesthetics but, more importantly, helps evenly distribute pressure during the clamping process, reducing direct pressure on the liquid harbor body 100.

[0048] Furthermore, to facilitate observation during the procedure by medical staff and improve convenience and accuracy, both the positioning seat 310 and the clamping piece 340 in this embodiment can be made of a transparent material. This design allows medical staff to clearly observe the position of the liquid harbor body 100 and the puncture status of the butterfly needle 200, including key information such as whether the needle has accurately entered the liquid harbor body 100 and whether there is blood reflux, thereby ensuring the accuracy and safety of the puncture operation. The choice of transparent materials not only meets the high standards of equipment cleanliness and visibility required in the medical field, but also greatly improves the efficiency and success rate of medical operations, providing patients with a safer and more comfortable medical experience.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An infusion port with puncture positioning, characterized in that: include: An infusion port body, wherein the upper end of the infusion port body is provided with a puncture portion; A butterfly wing needle, the butterfly wing needle is used to puncture the puncture part, and a positioning part is provided in the middle of the butterfly wing needle; The positioning assembly includes a positioning seat and a sliding sleeve, the sliding sleeve is slidably mounted on the outside of the positioning seat, the positioning seat has an inner cavity that passes through from top to bottom, a guide ring and a plurality of circumferentially distributed clamping plates are provided in the inner cavity, the upper end of the clamping plate is hinged to the positioning seat, the guide ring abuts and surrounds the plurality of clamping plates, the guide ring can push the lower ends of the plurality of clamping plates to retract inward, the positioning seat is provided with a vertical sliding groove, the guide ring is provided with a connecting rod passing through the sliding groove, the connecting rod is fixed to the sliding sleeve, and a slot is provided at the upper end of the sliding sleeve, and the positioning portion matches the shape of the slot.

2. The infusion port with puncture positioning according to claim 1, characterized in that: The positioning portion is a plastic sheet fixed to the butterfly wing needle, plug-in sheets are formed on both sides of the plastic sheet, and the slot is a straight slot that matches the plug-in sheets.

3. The infusion port with puncture positioning according to claim 1, characterized in that: The positioning portion is a plastic block fixed to the butterfly wing needle, the cross section of the plastic block is rectangular, and the slot is a rectangular groove that matches the plastic block.

4. The infusion port with puncture positioning according to claim 2 or 3, characterized in that: The upper end of the sliding sleeve is connected with a detachable top cover, the slot is arranged on the top cover, and the slot passes through the top cover.

5. The infusion port with puncture positioning according to claim 2 or 3, characterized in that: The upper outer side surface of the clamping piece is set as an inclined surface, the inner wall surface of the guide ring is set as a tapered surface, and the small end of the tapered surface is on the upper side.

6. The infusion port with puncture positioning according to claim 5, characterized in that: The positioning seat is connected to the two clamping pieces, and the positioning seat is provided with two sliding grooves. The two clamping pieces and the two sliding grooves are distributed on both sides of the positioning seat.

7. The infusion port with puncture positioning according to claim 5, characterized in that: The positioning seat is connected to four clamping pieces, which form a circle. The width of the lower end of the clamping piece is at least 50% greater than the width of the upper end.

8. The infusion port with puncture positioning according to claim 1, characterized in that: The lower end of the clamping piece exceeds the positioning seat, and the lower end of the clamping piece is at least 2 mm lower than the positioning seat.

9. The infusion port with puncture positioning according to claim 8, characterized in that: A silicone pad is fixed to the lower end of the clamping piece, and the silicone pad covers the inner side surface of the lower end of the clamping piece. The lower end surface of the silicone pad is set to a smooth arc surface.

10. The infusion port with puncture positioning according to claim 1, characterized in that: The positioning seat and the clamping piece are both made of transparent materials, so as to facilitate observation of the puncture status of the butterfly wing needle.

Images