Infusion port positioning seat

By designing a port-of-care positioning device and utilizing a combination of suction cups and multi-point suture holes, the problem of unstable fixation of the port-of-care device in the patient's body was solved, achieving stable implantation and normal use.

CN224113079UActive Publication Date: 2026-04-14THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
Filing Date
2025-03-03
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing infusion ports cannot be stably fixed during use and are prone to movement when implanted in the patient's body, making suturing and fixation inconvenient and affecting normal use.

Method used

An infusion port positioning seat was designed, comprising a base body, a puncture septum, a catheter, and a clamping post. The base body is provided with a reservoir and a fixing mounting hole. A suction cup and an auxiliary positioning seat are used for multi-point suture fixation, which is achieved by suction cup adsorption and suture hole.

Benefits of technology

This achieves stable fixation of the infusion port within the patient's body, reducing displacement caused by movement and ensuring normal use of the device and unaffected patient life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an infusion port positioning seat which comprises a base body, a puncture partition, a guide pipe and clamping columns, the puncture partition is fixedly arranged on the base body in a clamped mode, the guide pipe is connected to the base body, and the clamping columns are evenly and fixedly installed at the bottom end of the puncture partition. And the base main body comprises a liquid storage tank, a fixed mounting clamping hole and a fixed seat. In the using process, preliminary fixation can be achieved, final firm arrangement of the bottom of the fixing base is facilitated, the first suture holes and the second suture holes are evenly distributed in the bottom of the fixing base, and suture fixation between multiple points of the bottom and the side end of the fixing base and skin tissue can be achieved through the first suture holes and the second suture holes. The fixing seat is finally and fully fixed and positioned, so that after the device is implanted into the skin of a patient, the normal use of the patient is not influenced, and the device is more convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of port technology, specifically a port positioning seat. Background Technology

[0002] An infusion port is a completely subcutaneous closed intravenous infusion device, consisting of an injection base (a coin-sized titanium alloy or plastic base) and a catheter (a silicone / polyurethane tubing connected to a central venous line). Its function is similar to a "port," establishing a long-term venous access through subcutaneous puncture. It is suitable for patients requiring repeated infusions of high-concentration drugs (such as chemotherapy drugs) or long-term intravenous therapy. However, existing infusion ports are not convenient and stable to use. Furthermore, movement during implantation hinders rapid fixation, and movement during suturing makes suturing inconvenient. The single fixation point of the base makes it prone to separation from the skin tissue during significant movements after implantation, leading to large displacements and preventing stable use. Therefore, a port positioning device is needed to address these problems. Utility Model Content

[0003] The purpose of this invention is to provide a port positioning seat for infusion to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an infusion port positioning seat, comprising a base body, a puncture septum, a catheter, and locking posts. The puncture septum is securely mounted on the base body, the catheter is connected to the base body, and the locking posts are uniformly and fixedly installed at the bottom end of the puncture septum. The base body includes a reservoir, fixed mounting holes, and a fixing seat. The reservoir is located inside the fixing seat, and the fixed mounting holes are uniformly located on the fixing seat.

[0005] Preferably, a suction cup is fixedly connected to the bottom end of the fixing base, and an auxiliary positioning base is fixedly connected to the bottom edge of the suction cup.

[0006] Preferably, a sealing post is inserted into the side end of the suction cup.

[0007] Preferably, the bottom edge of the suction cup is provided with a first suture hole evenly extending through it, and the auxiliary positioning seat is provided with a second suture hole evenly extending through it. The number of the second suture holes is the same as that of the first suture holes, and the second suture holes are located outside the first suture holes.

[0008] Preferably, the conduit is connected to the liquid storage tank, and the snap-fit ​​post is snapped into the interior of the fixed mounting hole.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] During use, this utility model can provide initial fixation, facilitating the final secure installation of the fixation base. The bottom of the fixation base has evenly distributed first and second suture holes. Through the first and second suture holes, the fixation base can be sutured and fixed to the skin tissue at multiple points on the bottom and sides, ensuring that the fixation base is fully fixed and positioned. This ensures that after the device is implanted into the patient's skin, it will not affect the patient's normal life and use, making the implantation and use of the device more convenient and stable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present utility model;

[0012] Figure 2 This is a schematic diagram of the main body disassembled structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the main structure of the base of this utility model;

[0014] Figure 4 This is a schematic diagram of the bottom structure of the base body of this utility model.

[0015] In the figure: 1-base body, 2-puncture diaphragm, 3-catheter, 4-liquid reservoir, 5-fixed mounting hole, 6-fixed seat, 7-clamping post, 8-auxiliary positioning seat, 9-suction cup, 10-sealing post, 11-first suture hole, 12-second suture hole. Detailed Implementation

[0016] 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.

[0017] like Figure 1-4 As shown, one embodiment of this utility model is provided: an infusion port positioning seat, including a base body 1, a puncture diaphragm 2, a catheter 3, and a locking post 7. The puncture diaphragm 2 is fixedly mounted on the base body 1, the catheter 3 is connected to the base body 1, and the locking post 7 is evenly fixedly installed at the bottom end of the puncture diaphragm 2. The base body 1 includes a liquid storage tank 4, a fixing mounting hole 5, and a fixing seat 6. The liquid storage tank 4 is opened inside the fixing seat 6, and the fixing mounting hole 5 is evenly opened on the fixing seat 6.

[0018] A suction cup 9 is fixedly connected to the bottom end of the mounting base 6, and an auxiliary positioning seat 8 is fixedly connected to the bottom edge of the suction cup 9. The auxiliary positioning seat 8 serves to assist in positioning and fixing, and its design increases the contact support area at the bottom of the suction cup 9, making it more stable.

[0019] A sealing post 10 is inserted into the side of the suction cup 9. After the sealing post 10, made of a soft material such as silicone, is removed from the suction cup 9, the suction cup 9 can be quickly released from its adsorption state.

[0020] The bottom edge of the suction cup 9 is evenly provided with a first suture hole 11, and the auxiliary positioning seat 8 is evenly provided with a second suture hole 12. The number of second suture holes 12 is the same as that of the first suture holes 11. The second suture holes 12 are located outside the first suture holes 11. Multi-point suture fixation can be achieved through the first suture holes 11 and the second suture holes 12.

[0021] The conduit 3 is connected to the liquid storage tank 4, and the snap-fit ​​post 7 is snapped into the inside of the fixed installation hole 5 for easy fastening and installation.

[0022] Working principle: During implantation, pressing the fixation base 6 first causes the suction cup 9 at its bottom to adhere to the skin, achieving initial fixation of the suction cup 9 and fixation base 6 for stable placement. After initial fixation, the suction cup 9 and fixation base 6 are sutured to the skin tissue through the evenly distributed first suture holes 11 and second suture holes 12 on the suction cup 9 and auxiliary positioning base 8. After fixation, the existing single suture fixation point at the bottom of the fixation base 6 is transformed into multiple suture fixation points on the bottom and sides, making the fixation base 6 more stable after implantation. Once the base body 1 is fully fixed, the puncture is performed by pressing. The septum 2 allows the snap-fit ​​post 7 to be inserted into the fixed mounting hole 5, thus achieving a fixed snap-fit ​​between the fixation seat 6 and the puncture septum 2. Then, the entire device can be stably implanted into the skin. During use, the device can be initially fixed, facilitating the final secure suturing of the bottom of the fixation seat 6. The bottom of the fixation seat 6 has evenly distributed first suture holes 11 and second suture holes 12. Through the first suture holes 11 and second suture holes 12, the bottom and sides of the fixation seat 6 can be sutured and fixed to the skin tissue at multiple points, ensuring that the fixation seat 6 is fully fixed and positioned. This ensures that after the device is implanted into the patient's skin, it will not affect the patient's normal life and makes the device more convenient and stable to use.

[0023] 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 port-a-cath positioning device, comprising a base body (1), a puncture septum (2), a catheter (3), and a locking post (7), characterized in that: The puncture septum (2) is fixedly mounted on the base body (1), the catheter (3) is connected to the base body (1), and the snap-fit ​​posts (7) are evenly fixedly installed at the bottom end of the puncture septum (2). The base body (1) includes a liquid storage tank (4), a fixed mounting hole (5), and a fixing seat (6). The liquid storage tank (4) is opened inside the fixing seat (6), and the fixed mounting hole (5) is evenly opened on the fixing seat (6).

2. The infusion port positioning seat according to claim 1, characterized in that: The bottom end of the fixed base (6) is fixedly connected to a suction cup (9), and the bottom edge of the suction cup (9) is fixedly connected to an auxiliary positioning base (8).

3. The infusion port positioning seat according to claim 2, characterized in that: A sealing post (10) is inserted into the side end of the suction cup (9).

4. The infusion port positioning seat according to claim 3, characterized in that: The suction cup (9) has a first suture hole (11) evenly extending through its bottom edge, and the auxiliary positioning seat (8) has a second suture hole (12) evenly extending through its bottom edge. The number of the second suture holes (12) is the same as that of the first suture holes (11), and the second suture holes (12) are located outside the first suture holes (11).

5. A port positioning seat according to claim 4, characterized in that: The conduit (3) is connected to the liquid storage tank (4), and the snap-fit ​​post (7) is snapped into the interior of the fixed installation hole (5).