Auxiliary clamp for positioning electrogram in cardiac cavity

Abstract

The utility model relates to an electrogram positioning auxiliary clip in a cardiac cavity, which comprises an alligator clip, a lead and an adapter, the front end face of the adapter is provided with a lead wire slot, the side face of the adapter is provided with a button-type electrode, one end of the lead is electrically connected with the alligator clip, and the other end of the lead is electrically connected with the lead wire slot and the button-type electrode on the adapter. According to the electrogram positioning auxiliary clamp in the cardiac cavity, the lead wire slot and the button type electrode are arranged on the adapter, so that the adapter can be connected with a lead wire of an electrocardiograph in an inserted mode and can also be connected with an electrocardiograph monitor, the adapter and the electrocardiograph monitor are integrated together without being connected with a plurality of adapter clamps, the adapter clamps are selectively used on site according to actual conditions, and the operation is convenient. And no matter whether the lead for electrocardiograph monitoring is in a clip type or a snap-fastener type, the lead can be tightly connected with the lead to form a closed circuit, so that a stable and clear electrocardiogram can be quickly led out.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to an intracardiac electrogram positioning auxiliary clip. Background Technique

[0002] Peripherally Inserted Central Catheter (PICC) has become the preferred venous therapy for patients with tumor chemotherapy, irritant drug infusion, intravenous nutrition therapy, and long-term intravenous infusion due to its advantages of less trauma, long indwelling time, and fewer complications. The optimal position of the PICC tip is the lower segment of the superior vena cava or the area near the junction of the superior vena cava and the right atrium. Literature reports show that the ectopic rate of PICC catheters is 6%-10%. If the catheter tip is inserted too shallowly and does not reach the superior vena cava, it is likely to cause complications such as thrombosis, catheter blockage, and catheter migration. If the catheter tip is inserted too deeply and enters the right atrium, it can cause complications such as arrhythmia.

[0003] Therefore, the accurate positioning of the catheter tip is crucial for the safety of patients during venous therapy. In recent years, more and more studies have confirmed that the intracardiac electrogram positioning technology using an electrocardiograph and an electrocardiogram monitor can real-time position during catheter insertion and make the position of the catheter tip more ideal, without radiation, and is more convenient, effective, and safe. The Chinese Nursing Association also issued a group standard "Intracardiac Electrogram Positioning Technology for PICC Tips" in 2021 and gradually applied it to clinical practice. However, in clinical applications, how to connect the sterile PICC catheter support wire with the non-sterile electrocardiograph lead or electrocardiogram monitor lead is a difficult point, which affects the wide application of this technology in clinical practice.

[0004] The existing special conversion clip for intracardiac electrogram is only applicable to intracardiac electrogram positioning using an electrocardiograph. After connecting to the right limb lead of the electrocardiograph first, it needs to be sent into the sterile sheath together with the ultrasound probe. During positioning, the conversion clip needs to be connected to the catheter support wire through the sterile sheath. The waveform is often unstable when taking pictures, the waveform is thick and not easy to distinguish, and the catheterization time is prolonged. Moreover, this conversion clip is not applicable to electrocardiogram monitors, and it is more convenient to use an electrocardiogram monitor for positioning when catheterizing critically ill patients at the bedside. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide an intracardiac electrogram positioning auxiliary clip according to the deficiencies of the existing technology, which can select to connect an electrocardiograph or an electrocardiogram monitor for positioning according to the actual situation.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An intracardiac electrogram positioning auxiliary clip, comprising an alligator clip, a wire, and a conversion adapter. The front end face of the conversion adapter is provided with a lead wire slot, and the side face of the conversion adapter is provided with a button electrode. One end of the wire is electrically connected to the alligator clip, and the other end is electrically connected to the lead wire slot and the button electrode on the conversion adapter.

[0008] To better implement the present utility model, further optimization is made to the above structure. The conversion adapter is of a cuboid structure. The button electrode is arranged on the lower side face of the conversion adapter, and holding parts are arranged on the left and right side faces of the conversion adapter.

[0009] To better implement the present utility model, further optimization is made to the above structure. Anti-slip protrusions are arranged on the holding parts.

[0010] To better implement the present utility model, further optimization is made to the above structure. An extension block is arranged at the rear end of the conversion adapter, and a tape is wound around the extension block.

[0011] To better implement the present utility model, further optimization is made to the above structure. The wire is made of copper wire, and the outside of the copper wire is wrapped with insulating rubber.

[0012] To better implement the present utility model, further optimization is made to the above structure. The length of the wire is 30 cm.

[0013] To better implement the present utility model, further optimization is made to the above structure. The alligator clip includes an upper jaw and a lower jaw that bite with each other. A trapezoidal block is arranged on the upper jaw, and a trapezoidal groove is formed on the lower jaw. The trapezoidal block can be abutted into the trapezoidal groove.

[0014] To better implement the present utility model, further optimization is made to the above structure. The upper jaw is made of rubber material, and the lower jaw is made of a conductor material electrically connected to the wire.

[0015] The present utility model has the following beneficial effects compared with the prior art:

[0016] The intracardiac electrogram positioning auxiliary clip provided by the present utility model, by arranging a lead wire slot and a button electrode on the conversion adapter, can not only be plugged into the lead wire of the electrocardiograph, but also be connected to the electrocardiogram monitor. Integrating the two together does not require connecting multiple conversion clips and can be selected and used according to the actual situation on site. Moreover, whether the lead of the electrocardiogram monitor is of the clip type or the snap type, it can be closely connected to form a closed circuit, so as to quickly lead out a stable and clear electrocardiogram. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is one of the structural schematic diagrams of the present invention;

[0019] Figure 2 is Figure 1 the enlarged structural schematic diagram of A in;

[0020] Figure 3 is another structural schematic diagram of the present invention;

[0021] Figure 4 is Figure 3 the enlarged structural schematic diagram of B in.

[0022] In the figure:

[0023] 1 - alligator clip, 101 - trapezoidal block, 102 - trapezoidal groove, 2 - wire, 3 - adapter, 301 - lead wire slot, 302 - holding part, 4 - button electrode, 5 - extension block, 6 - tape. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the present invention clearer, the following will describe the technical solutions of the present invention in detail. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Referring to Figures 1 - 4 , the intracardiac electrogram positioning auxiliary clip provided by the present utility model includes an alligator clip 1, a wire 2, and a conversion adapter 3. A lead wire slot 301 is provided on the front end face of the conversion adapter 3, and the lead wire of an electrocardiograph can be inserted into the lead wire slot 301. For details, see Figure 3 and Figure 4 , a button electrode 4 is provided on the side surface of the conversion adapter 3, and the bottom surface is a metal sheet. The connection between metals makes the conductivity better, eliminating the need for disposable electrode patches and reducing consumption. It also has a wider range of usability and can be closely connected to both clip-type and snap-type electrocardiogram monitoring leads. The clip-type lead can be directly clipped onto the protrusion of the button electrode 4, while the snap-type lead can be directly snapped together. One end of the wire 2 is electrically connected to the alligator clip 1, and the other end is electrically connected to the lead wire slot 301 and the button electrode 4 on the conversion adapter 3. A closed circuit is formed through the alligator clip 1, the wire 2, and the conversion adapter 3, thereby quickly guiding out a stable and clear electrocardiogram.

[0028] The conversion adapter 3 is of a cuboid structure. The button electrode 4 is provided on the lower side surface of the conversion adapter 3. Holding portions 302 are provided on the left and right side surfaces of the conversion adapter 3 to facilitate docking during connection. Anti-slip protrusions are provided on the holding portions 302 to increase friction.

[0029] For details, see Figure 4 , an extension block 5 is provided at the rear end of the conversion adapter 3, and a tape 6 is wound around the extension block. Regardless of whether the conversion adapter 3 is flipped, the tape 6 can be torn off to bond and fix the conversion adapter 3 on the sterile drape, making the positioning more stable.

[0030] The wire 2 is made of copper wire, and the copper wire is wrapped with insulating rubber on the outside, which can reduce electromagnetic interference and improve the quality of signal transmission. The length of the wire 2 is 30 cm. Since the product is a disposable sterile item, strict aseptic operation needs to be ensured, and the length should meet the requirements of aseptic operation.

[0031] For details, see Figure 1 and Figure 2The crocodile clip 1 includes an upper jaw and a lower jaw that engage with each other. The upper jaw is provided with a trapezoidal block 101, and the lower jaw is provided with a trapezoidal groove 102. The two cooperate with each other. When the crocodile clip 1 engages, the trapezoidal block 101 can reach the trapezoidal groove 102 to firmly lock the catheter support wire in the trapezoidal groove 102. Since the diameter of the catheter support wire is only 0.5mm, the catheter support wire can be effectively prevented from popping out of the crocodile clip 1. Moreover, the upper jaw is made of rubber, and the lower jaw is made of a conductor material for the electrical connection wire 2. Only the lower jaw is needed to transmit the electrical signal. The upper jaw is made of rubber to provide greater friction to prevent the catheter support wire from popping out.

[0032] When in use, first clamp the auxiliary positioning clip on the catheter support guide wire through the crocodile clip 1, so that the catheter support guide wire is stuck in the trapezoidal groove 102, and then use an electrocardiograph or an electrocardiograph monitor for positioning according to the on-site situation, so as to quickly guide a stable and clear electrocardiogram.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An intracardiac electrogram positioning auxiliary clip, characterized in that: The invention comprises an alligator clip (1), a wire (2) and a conversion joint (3); a lead wire slot (301) is arranged on the front end surface of the conversion joint (3); a button-type electrode (4) is arranged on the side surface of the conversion joint (3); one end of the wire (2) is electrically connected to the alligator clip (1), and the other end is electrically connected to the lead wire slot (301) and the button-type electrode (4) on the conversion joint (3).

2. The intracardiac electrogram positioning auxiliary clamp according to claim 1, characterized in that: The conversion joint (3) is a rectangular parallelepiped structure, the button-type electrode (4) is arranged on the lower side of the conversion joint (3), and gripping portions (302) are arranged on the left and right side surfaces of the conversion joint (3).

3. The intracardiac electrogram positioning auxiliary clamp according to claim 2, characterized in that: The gripping portion (302) is provided with an anti-slip protrusion.

4. The intracardiac electrogram positioning auxiliary clamp according to claim 2, characterized in that: An extension block (5) is provided at the rear end of the conversion joint (3), and an adhesive tape (6) is wound around the extension block.

5. The intracardiac electrogram positioning auxiliary clip according to claim 1, characterized in that: The conducting wire (2) is a copper wire, and the outer side of the copper wire is wrapped with insulating rubber.

6. The intracardiac electrogram positioning auxiliary clamp according to claim 5, characterized in that: The length of the wire (2) is 30 cm.

7. The intracardiac electrogram positioning auxiliary clip according to claim 1, characterized in that: The crocodile clip (1) comprises an upper jaw and a lower jaw that engage with each other, the upper jaw is provided with a trapezoidal block (101), the lower jaw is provided with a trapezoidal groove (102), and the trapezoidal block (101) can be pressed into the trapezoidal groove (102).

8. The intracardiac electrogram positioning auxiliary clip according to claim 7, characterized in that: The upper jaw is made of rubber material, and the lower jaw is made of a conductor material electrically connected to the lead wire (2).

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