Positioning connector special for PICC
By designing a dedicated positioning connector for PICC and utilizing ECG guidance and anti-dislodgement mechanisms, the problem of difficult PICC catheter fixation has been solved, achieving a high success rate and comfortable catheter fixation, suitable for various sizes of ECG monitors.
Patent Information
- Application Number
- CN202520556779.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The lack of dedicated ECG connectors in clinical practice makes it difficult to fix PICC catheters, which are prone to falling out, affecting the success rate of catheter placement and patient comfort.
A dedicated positioning connector for PICC was designed, comprising a connector clip, ECG electrode pads, an anti-dislodgement mechanism, and an elastic band. The catheter is positioned by the ECG P wave and secured with Velcro and the elastic band to ensure that the catheter is not easily dislodged.
It improves the success rate and safety of catheter placement, reduces catheter dislodgement and complications, enhances patient comfort and mobility, and is suitable for various sizes of ECG monitors.
Smart Images

Figure CN223887230U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical equipment technology, and specifically relates to a PICC dedicated positioning connector. Background Technology
[0002] PICC (Peripherally Inserted Central Catheter) is a central venous catheter inserted through a vein in the arm. The catheter is inserted directly into a large vein near the heart, avoiding direct contact between chemotherapy drugs and the arm veins. The high blood flow in the large vein quickly dilutes the chemotherapy drugs, preventing irritation to the blood vessels. Therefore, it effectively protects the upper limb veins, reduces the incidence of phlebitis, alleviates patient pain, and improves quality of life. However, PICC connectors are specialized devices, rarely seen in clinical practice. Departments newly implementing intracardiac electrocardiogram (ICC) positioning must purchase them, and the cost is considerable. Therefore, the lack of dedicated PICC connectors is the biggest obstacle to the widespread use of ICC positioning technology. Furthermore, patients need to be very careful when using PICCs, as they may become dislodged. To address the problems mentioned above, we propose a dedicated PICC positioning connector. Summary of the Invention
[0003] The purpose of this utility model is to provide a dedicated positioning connector for PICC, which has the advantages of ECG positioning and is not easy to dislodge.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a PICC dedicated positioning connector, including a main line (1), characterized in that: a connector clip (2) is electrically connected to the left side of the main line (1), an ECG electrode pad (3) is welded to the right side of the main line (1), a branch line (4) is welded to the bottom of the ECG electrode pad (3), and an anti-detachment mechanism is provided on the surface of the main line (1).
[0005] The plug (9) connected to the branch line (4) is used to connect to the electrocardiogram monitor; when the PICC catheter is inserted to a length difference of 5cm, the connector (2) is used to connect to the guide wire at the tail of the PICC catheter so that the catheter can be positioned in the optimal position by observing the change of the P wave on the electrocardiogram displayed by the electrocardiogram monitor during the continued insertion of the catheter.
[0006] The above technical solution involves first connecting the PICC line to the ECG monitor. When the PICC catheter is advanced to a length difference of 5 cm from the pre-insertion length, the guidewire at the end of the PICC catheter is connected to the clamp. While continuing to advance the catheter, the changes in the P wave on the ECG are observed. Finally, the catheter is positioned at the optimal location. Compared with traditional X-ray positioning, this PICC catheter positioning method allows for more accurate placement during the procedure, thus greatly increasing the success rate and safety of placement. It is convenient to obtain materials, simple to manufacture, and its effectiveness is not affected. Furthermore, it can be connected to ECG monitors of various specifications, solving current clinical difficulties and promoting the development of PICC technology.
[0007] The present invention is further configured such that the anti-detachment mechanism includes a fixing pad, the fixing pad is fixedly sleeved on both sides of the surface of the main line, the top two sides of the fixing pad are sewn with straps, the top of the front of the straps is sewn with Velcro A, and the bottom two sides of the back of the fixing pad are sewn with Velcro B.
[0008] The above technical solution employs an anti-dislodgement mechanism. The guidewire at the end of the PICC catheter is connected to the clamp, the front of the fixing pad rests against the patient's arm, the bandage is wrapped around the arm, and Velcro A is attached to Velcro B for fixation. This prevents the PICC catheter from easily dislodging, ensuring good stability. The fluid flow rate is unaffected by the patient's position, facilitating patient movement during infusion, reducing pain and discomfort caused by frequent punctures, and minimizing complications caused by catheter displacement. It is not limited by time or location, can be operated directly, and is simple to use and comfortable to wear.
[0009] The present invention is further configured such that there are two fixing pads.
[0010] The above technical solution involves setting two fixing pads to simultaneously secure the upper arm and forearm, further preventing them from falling off.
[0011] The present invention is further configured such that the end of the branch line away from the ECG electrode is electrically connected to a plug.
[0012] The above technical solution incorporates a plug, enabling the connector to connect to various sizes of electrocardiogram (ECG) monitors.
[0013] The present invention is further provided that the wiring clamp has a spring inside.
[0014] The above technical solution incorporates a spring to prevent the wire clamp from slipping off when holding the wire.
[0015] The present invention is further configured such that the material of the strap is an elastic material.
[0016] The above technical solution, by using an elastic material, allows for adjustment when binding the arm, making it comfortable to wear.
[0017] The present invention is further configured such that a wire harness is sleeved on the surface of the branch line.
[0018] The above technical solution involves setting up cable ties to allow for the storage of excessively long cables, preventing accidental stepping on them.
[0019] The present invention is further provided that a cotton pad is sewn onto the front side of the fixing pad.
[0020] The above technical solution, by incorporating a cotton pad, makes wearing and using the garment more comfortable.
[0021] In summary, this utility model has the following beneficial effects:
[0022] 1. Compared with traditional X-ray imaging, the PICC catheter positioning method of this utility model can make the intraoperative catheter placement direction more accurate, thereby greatly increasing the success rate and safety of catheter placement. It is convenient to obtain materials, simple to manufacture, and its use effect is not affected in any way. Moreover, it can be connected to various specifications of electrocardiogram monitors, solving current clinical difficulties and promoting the development of PICC technology.
[0023] 2. This utility model features a PICC catheter that is not easily dislodged, has good stability, and the fluid flow rate is not affected by the patient's position. It facilitates the patient's movement during infusion, reduces the pain and discomfort caused by frequent punctures, and reduces complications caused by catheter displacement. It is not limited by time or place, can be operated directly, and is simple to operate and comfortable to wear. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a front structural sectional view of the present invention;
[0026] Figure 3 This is a partial rear view of the structure of this utility model.
[0027] Attached diagram labels: 1. Main line; 2. Connection clip; 3. ECG electrode pads; 4. Branch line; 5. Fixing pad; 6. Bandage; 7. Velcro A; 8. Velcro B; 9. Plug; 10. Spring; 11. Cable tie; 12. Cotton pad. Detailed Implementation
[0028] The present invention will be further described in detail below with reference to the accompanying drawings.
[0029] Example 1: Reference Figure 1 , Figure 2A dedicated positioning connector for PICC includes a main line 1, a clamp 2 electrically connected to the left side of the main line 1, an ECG electrode 3 soldered to the right side of the main line 1, a branch line 4 soldered to the bottom of the ECG electrode 3, and an anti-dislodgement mechanism on the surface of the main line 1. The branch line 4 is first connected to an ECG monitor. When the PICC catheter is advanced to a length difference of 5 cm from the pre-insertion length, it is connected to the guide wire at the tail of the PICC catheter by the clamp. While continuing to advance the catheter, the changes in the P wave of the ECG are observed. Finally, the catheter is positioned in the optimal position.
[0030] refer to Figure 1 , Figure 2 The end of the branch line 4 away from the ECG electrode 3 is electrically connected to a plug 9. By setting the plug 9, the connector can be connected to ECG monitors of various specifications.
[0031] refer to Figure 1 , Figure 2 The wire clamp 2 is equipped with a spring 10 inside, which can prevent the wire clamp 2 from falling off when clamping the wire.
[0032] refer to Figure 1 , Figure 2 The surface of the branch line 4 is fitted with a cable tie 11. By setting the cable tie 11, the branch line 4 can be stored away when it is too long, preventing accidental stepping on the long cable.
[0033] Brief description of usage: When PICC is required for treatment, first connect plug 9 of connector 4 to the ECG monitor. When the PICC catheter is advanced to a length 5 cm short of the pre-insertion length, connect the guidewire at the end of the PICC catheter to the clamp. Continue advancing the catheter while observing changes in the P wave on the ECG. Finally, position the catheter in the optimal position. Compared with traditional X-ray positioning, the PICC catheter positioning method allows for more accurate placement during the procedure, thus greatly increasing the success rate and safety. It is convenient to obtain materials, simple to manufacture, and its effectiveness is not affected. It can also be connected to ECG monitors of various sizes, solving current clinical difficulties and promoting the development of PICC technology.
[0034] Example 2: Reference Figure 1 , Figure 2 , Figure 3 A PICC-specific positioning connector with an anti-dislodgement mechanism includes a fixing pad 5, which is fixedly sleeved on both sides of the surface of the main line 1. The top two sides of the fixing pad 5 are sewn with straps 6, and the top of the front of the straps 6 is sewn with Velcro A7. The bottom two sides of the back of the fixing pad 5 are sewn with Velcro B8. The connector is connected to the guide wire at the tail of the PICC catheter via a clamp. The front of the fixing pad 5 is against the patient's arm, the straps 6 are wrapped around the arm, and the Velcro A7 is attached to the Velcro B8 for fixation. The PICC catheter is not easy to dislodge and has good stability.
[0035] refer to Figure 1 , Figure 2 Two fixing pads 5 are provided. By setting two fixing pads 5, the upper arm and forearm can be fixed at the same time, further preventing them from falling off.
[0036] refer to Figure 1 , Figure 2 , Figure 3 The strap 6 is made of elastic material, which allows for adjustment when binding the arm, making it comfortable to wear.
[0037] refer to Figure 1 The front of the fixing pad 5 is sewn with a cotton pad 12, which makes it more comfortable to wear.
[0038] Brief description of usage: When using a PICC line, connect the guidewire at the end of the PICC catheter to the clamp. Place the front of the fixing pad 5 against the patient's arm, wrap the bandage 6 around the arm, and secure it with Velcro A7 against Velcro B8. The PICC catheter is less likely to fall out, has good stability, and the fluid flow rate is not affected by the patient's position. It facilitates the patient's movement during infusion, reduces pain and discomfort caused by frequent punctures, and reduces complications caused by catheter displacement. It is not limited by time or place, can be operated directly, and is simple to operate and comfortable to wear.
[0039] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A PICC-specific positioning connector, comprising a main line (1), characterized in that: A connector clip (2) is electrically connected to the left side of the main line (1), an electrocardiogram electrode pad (3) is welded to the right side of the main line (1), a branch wire (4) is welded to the bottom of the electrocardiogram electrode pad (3), and an anti-detachment mechanism is provided on the surface of the main line (1). The plug (9) connected to the branch line (4) is used to connect to the electrocardiogram monitor; when the PICC catheter is inserted to a length difference of 5cm, the connector (2) is used to connect to the guide wire at the tail of the PICC catheter so that the catheter can be positioned in the optimal position by observing the change of the P wave on the electrocardiogram displayed by the electrocardiogram monitor during the continued insertion of the catheter.
2. The PICC-specific positioning connector according to claim 1, characterized in that: The anti-detachment mechanism includes a fixing pad (5), which is fixedly sleeved on both sides of the surface of the main line (1). The top two sides of the fixing pad (5) are sewn with straps (6). The top of the front of the straps (6) is sewn with Velcro A (7), and the bottom two sides of the back of the fixing pad (5) are sewn with Velcro B (8).
3. A PICC-specific positioning connector according to claim 2, characterized in that: The fixing pad (5) is provided in two parts.
4. A PICC-specific positioning connector according to claim 1, characterized in that: The end of the branch line (4) away from the ECG electrode (3) is electrically connected to a plug (9).
5. A PICC-specific positioning connector according to claim 1, characterized in that: The wiring clamp (2) is equipped with a spring (10).
6. A PICC-specific positioning connector according to claim 2, characterized in that: The material of the strap (6) is set to be elastic.
7. A PICC-specific positioning connector according to claim 1, characterized in that: The surface of the branch line (4) is fitted with a wire harness (11).
8. A PICC-specific positioning connector according to claim 2, characterized in that: The front of the fixing pad (5) is sewn with a cotton pad (12).