A port puncture positioning device

The puncture positioning device, composed of an arc-shaped connecting plate and an infrared emitting lamp, solves the problems of obstructed vision and high difficulty in dismantling existing infusion port puncture devices, and achieves more efficient puncture operations.

CN224523716UActive Publication Date: 2026-07-21ZHUJIANG HOSPITAL OF SOUTHERN MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUJIANG HOSPITAL OF SOUTHERN MEDICAL UNIVERSITY
Filing Date
2025-03-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing port-of-care puncture positioning devices can easily obstruct the vision and hand movement of medical staff, increasing the difficulty of puncture, and the removal of the puncture needle catheter is also difficult.

Method used

The connecting base, composed of several arc-shaped connecting plates, and the sliding arc-shaped positioning plate, combined with infrared emitting lights, provide puncture point guidance, avoid infusion ports and puncture needle catheters, and facilitate adjustment of needle insertion position and removal.

Benefits of technology

It improves the accuracy of puncture and simplifies the puncture process, reduces the difficulty of operation for medical staff, and avoids obstruction of vision and catheter interference.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of medical apparatus and instruments especially relates to a infusion port puncture positioning device. The utility model discloses a connecting base that is annular, the arc positioning plate of sliding on the connecting base and the positioning assembly of being fixed in the inboard wall of arc positioning board. The utility model discloses a kind of infusion port puncture positioning device, to solve the problem that the existing positioning device is prone to hinder medical staff to carry out puncture and high difficulty of removal.
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Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a port-of-care puncture and positioning device. Background Technology

[0002] An infusion port is a closed infusion device that is completely implanted in the body for patients requiring long-term intravenous medication. Current infusion ports generally consist of a base and a catheter connected to the base, with a puncture septum on the base. After complete implantation, when an infusion is needed, healthcare workers will use one hand to hold the infusion port and the other hand to hold a butterfly needle for puncture and infusion.

[0003] To improve puncture accuracy, puncture positioning devices have been invented. These typically include a notched positioning ring, which is placed on the outer wall of the infusion port to improve the accuracy of puncture for medical staff. However, it should be noted that the notched positioning ring is designed to avoid the catheter of the infusion port. The positioning ring surrounds the infusion port, which to some extent obstructs the medical staff's view and can also hinder the movement of the medical staff's hands during puncture. This is especially true for medical staff who are not skilled in puncture, are less experienced, or have a different dominant hand for needle insertion (usually the right hand), which increases the difficulty of puncture for medical staff to some extent.

[0004] In addition, after the puncture needle is inserted, the catheter on the puncture needle increases the difficulty of removing the positioning ring. Medical staff need to be careful to avoid the catheter of the puncture needle and the catheter of the infusion port to avoid touching them and causing the puncture needle to shift or fall out.

[0005] Therefore, how to design a port-of-care puncture and positioning device that can solve the above-mentioned technical problems is a technical problem that needs to be solved. Utility Model Content

[0006] In order to solve the above problems, the purpose of this utility model is to provide an infusion port puncture positioning device to solve the problems that existing positioning devices easily hinder medical staff from performing punctures and are difficult to remove.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: including a ring-shaped connecting base, an arc-shaped positioning plate slidably disposed on the connecting base, and a positioning component fixed to the inner sidewall of the arc-shaped positioning plate;

[0008] The connecting base is composed of several arc-shaped connecting plates connected front to back; a T-shaped connecting tenon is formed on the front end face of the arc-shaped connecting plate along its height direction, and a T-shaped connecting groove is formed on the rear end face of the arc-shaped connecting plate at the position corresponding to the T-shaped connecting tenon along its height direction; a connecting slide is formed on the upper end face of several arc-shaped connecting plates, and the connecting slides on several arc-shaped connecting plates are spliced ​​together to form a connected annular slide; a connecting block that mates with the annular slide is fixed on the bottom of the arc-shaped positioning plate along its circumference, and the connecting block is slidably disposed in the annular slide.

[0009] Furthermore, the positioning component includes at least three infrared emitting lamps, and the intersection of the rays emitted by the three infrared emitting lamps is set corresponding to the center of the connecting base.

[0010] Furthermore, an arc-shaped connecting buckle is hinged on the outer wall of one end of the arc-shaped connecting plate, and a connecting buckle that cooperates with the arc-shaped connecting buckle is fixed on the outer wall of the other end at the corresponding position of the arc-shaped connecting buckle. Adjacent arc-shaped connecting plates are connected by the arc-shaped connecting buckle and the connecting buckle.

[0011] Furthermore, the lower end face of the arc-shaped connecting plate is also affixed with several layers of disposable paper that match the shape and size of the arc-shaped connecting plate.

[0012] Furthermore, the minimum number of the arc-shaped connecting plates is eight.

[0013] Furthermore, the arc-shaped positioning plate is equipped with a power supply for providing power to the infrared emitting lamp.

[0014] Furthermore, the power source is a rechargeable battery, and the outer surface of the arc-shaped positioning plate is provided with a charging port that is connected to the power source.

[0015] Furthermore, the outer peripheral wall of the arc-shaped connecting plate is provided with a plurality of threaded through holes that communicate with the connecting slide along its circumferential direction.

[0016] This utility model has the following beneficial effects:

[0017] 1-This utility model provides a connecting base consisting of several arc-shaped connecting plates and an arc-shaped positioning plate that slides on the upper surface of the connecting base. This facilitates the avoidance of catheters for infusion ports and puncture needles. It also allows medical staff to adjust the connection base according to their preferred hand, needle insertion habits, and the position of the infusion port on the patient. This avoids situations where the connecting base obstructs the view or hinders the needle insertion during puncture. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the present utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the utility model in use.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-Connecting base, 11-Arc-shaped connecting plate, 111-T-shaped connecting tenon, 112-T-shaped connecting mortise, 113-Connecting slide, 114-Arc-shaped connecting buckle, 115-Connecting buckle, 116-Disposable partition paper, 117-Threaded through hole;

[0023] 2-Arc-shaped positioning plate, 21-Connecting block, 22-Charging port;

[0024] 3- Positioning component, 31- Infrared emitting light. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0026] See Figure 1-3 As shown, the solution includes an annular connecting base 1, an arc-shaped positioning plate 2 slidably disposed on the connecting base 1, and a positioning component 3 fixed to the inner sidewall of the arc-shaped positioning plate 2; the inner diameter of the connecting base 1 is the same as the outer diameter of the infusion port.

[0027] The connecting base 1 is composed of several arc-shaped connecting plates 11 connected front to back; a T-shaped connecting tenon 111 is provided on the front end face of the arc-shaped connecting plate 11 along its height direction, and a T-shaped connecting groove 112 is provided on the rear end face of the arc-shaped connecting plate 11 at the corresponding position of the T-shaped connecting tenon 111 along its height direction; a connecting slide 113 is provided on the upper end face of several arc-shaped connecting plates 11, and the connecting slides 113 on several arc-shaped connecting plates 11 are assembled to form a connected annular slide; a connecting block 21 that cooperates with the annular slide is fixedly provided on the bottom of the arc-shaped positioning plate 2 along its circumference, and the connecting block 21 is slidably disposed in the annular slide.

[0028] Furthermore, the positioning component 3 includes at least three infrared emitting lamps 31, and the intersection of the rays emitted by the three infrared emitting lamps 31 is set corresponding to the center of the connecting base 1.

[0029] Furthermore, to increase the stability of the connection between adjacent arc-shaped connecting plates 11, this embodiment provides an arc-shaped connecting buckle 114 hinged to the outer wall of one end of each arc-shaped connecting plate 11, and a connecting buckle 115 corresponding to the arc-shaped connecting buckle 114 fixed to the outer wall of the other end. Adjacent arc-shaped connecting plates 11 are connected by the arc-shaped connecting buckle 114 and the connecting buckle 115. When not in use, the connecting buckle is engaged with the adjacent connecting buckle 115 to increase the tightness of the connection.

[0030] The lower end face of the arc-shaped connecting plate 11 is also affixed with several layers of disposable paper 116 that match the shape and size of the arc-shaped connecting plate 11. When in use, the bottom layer of disposable paper 116 is removed, allowing the newest disposable paper 116 to come into contact with the patient's skin, improving patient safety and preventing cross-infection.

[0031] Furthermore, in this embodiment, the number of arc-shaped connecting plates 11 is set to 8. Setting the number of arc-shaped connecting plates 11 to 8 is a preferred implementation, but it is not limited to this. In other embodiments, the number of arc-shaped connecting plates 11 can be increased as needed. The more arc-shaped connecting plates 11 are provided, the more precise the notch opening of the connecting base 1 will be during use.

[0032] Furthermore, the arc-shaped positioning plate 2 is equipped with a power source (not shown in the figure) for providing power to the infrared emitting lamp 31. Even further, the power source is a rechargeable battery, and the outer surface of the arc-shaped positioning plate 2 has a charging port 22 connected to the power source 22.

[0033] Furthermore, the outer peripheral wall of the arc-shaped connecting plate 11 is provided with a plurality of threaded through holes 117 that communicate with the connecting slide 113 at intervals along its circumference. After the use position of the arc-shaped positioning plate 2 is determined, fastening bolts are connected through the threaded through holes 117 so that the fastening bolts abut against the arc-shaped positioning plate 2 to restrict the movement of the arc-shaped positioning plate 2.

[0034] The working principle is roughly as follows:

[0035] First, medical staff gently press the infusion port to determine its placement. Then, they place the connecting base 1 in the corresponding position of the infusion port. Based on the position of the infusion port catheter, they remove the corresponding arc-shaped connecting plate 11 to avoid the catheter and place the infusion port inside the connecting base 1. At the same time, the infrared emitting lamp 31 emits infrared rays. The puncture point is located below the intersection of the three infrared rays. Based on the puncture hand, the scene environment, and the patient's needle insertion site, the medical staff moves the arc-shaped positioning plate 2 to rotate circumferentially along the connecting base 1. They adjust the notch position of the arc-shaped positioning plate 2 to facilitate needle insertion. During the rotation of the arc-shaped positioning plate 2, the intersection of the infrared rays remains unchanged.

[0036] Once confirmed, open the arc-shaped connecting buckle 114 on the outer wall of the arc-shaped connecting plate 11 at the corresponding arc-shaped positioning plate 2 notch position, and move one or more arc-shaped connecting plates 11 at the corresponding notch upwards so that they form a ring structure with notches with the arc-shaped connecting plate 11. Figure 3 As shown, (under normal circumstances, the catheter of the infusion port is set opposite to the catheter of the puncture needle, that is, the arc-shaped positioning plate 2 corresponds to the position of the catheter of the infusion port. When the arc-shaped connecting plate 11 is removed from the notch position of the arc-shaped positioning plate 2, the arc-shaped connecting plates 11 on both sides and the arc-shaped positioning plate 2 are connected. It is impossible for there to be two independent notches on the connecting base 1), so as to avoid the hands of medical staff from touching the puncture needle catheter.

[0037] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for positioning and puncturing an infusion port, characterized in that: It includes a ring-shaped connecting base (1), an arc-shaped positioning plate (2) slidably disposed on the connecting base (1), and a positioning component (3) fixed to the inner sidewall of the arc-shaped positioning plate (2); The connecting base (1) is composed of several arc-shaped connecting plates (11) connected front to back; a T-shaped connecting tenon (111) is provided on the front end face of the arc-shaped connecting plate (11) along its height direction, and a T-shaped connecting groove (112) is provided on the rear end face of the arc-shaped connecting plate (11) at the position corresponding to the T-shaped connecting tenon (111) along its height direction; a connecting slide (113) is provided on the upper end face of several arc-shaped connecting plates (11), and the connecting slides (113) on several arc-shaped connecting plates (11) are assembled to form a connected annular slide; a connecting block (21) that cooperates with the annular slide is fixed on the bottom of the arc-shaped positioning plate (2) along its circumference, and the connecting block (21) is slidably disposed in the annular slide.

2. The infusion port puncture and positioning device according to claim 1, characterized in that: The positioning component (3) includes at least three infrared emitting lamps (31), and the intersection of the rays emitted by the three infrared emitting lamps (31) is set at the center of the connecting base (1).

3. The infusion port puncture and positioning device according to claim 1, characterized in that: An arc-shaped connecting buckle (114) is hinged on the outer wall of one end of the arc-shaped connecting plate (11), and a connecting buckle (115) that cooperates with the arc-shaped connecting buckle (114) is fixed on the outer wall of the other end. Adjacent arc-shaped connecting plates (11) are connected by the arc-shaped connecting buckle (114) and the connecting buckle (115).

4. The infusion port puncture and positioning device according to claim 1, characterized in that: The lower end face of the arc-shaped connecting plate (11) is also covered with several layers of disposable paper (116) that match the shape and size of the arc-shaped connecting plate (11).

5. The infusion port puncture and positioning device according to claim 1, characterized in that: The minimum number of the arc-shaped connecting plates (11) is 8.

6. The infusion port puncture and positioning device according to claim 1, characterized in that: The arc-shaped positioning plate (2) is equipped with a power supply for providing power to the infrared emitting lamp (31).

7. The port-of-care puncture and positioning device according to claim 6, characterized in that: The power source is a rechargeable battery, and the outer surface of the arc-shaped positioning plate (2) is provided with a charging port (22) that is connected to the power source.

8. The port-of-care puncture and positioning device according to claim 1, characterized in that: The outer peripheral wall of the arc-shaped connecting plate (11) is provided with a plurality of threaded through holes (117) that communicate with the connecting slide (113) at intervals along its circumference.