Venipuncture electrocardio positioning device
By designing an venous pest -electrical positioning device, which contains rotating connectors, infusion, infusion, and guide wire connections, the complex problems caused by the diversity of equipment in the existing technology have been solved, and convenient positioning operations are achieved.
Patent Information
- Application Number
- CN202420589899.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-03-26
AI Technical Summary
In the prior art, the instruments used for infusion conductive positioning and wire conductive positioning are two sets of different equipment, which leads to the operator to find corresponding equipment according to the patient's requirements, which is complicated and inconvenient to operate.
The vein puncture -hearted positioning device is designed, including tube body, valve body, and electrode. The pipe body is equipped with a catheter connector, infusion joint and guide wire fixing connector. , To control the connection relationship between the inner cavity of these joints with the valve core cavity.
Through the rotating valve body, the operator can easily switch the infusion conductivity positioning and guide wire conductivity positioning, simplify the operating process, and improve the convenience and efficiency of the operation.
Smart Images
Figure CN222383221U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a venipuncture electrocardiographic positioning device. Background Art
[0002] ECG positioning is mainly used in the process of inserting a central venous catheter through a peripheral vein. By observing the changes in the electrocardiogram, the position of the catheter can be accurately located to improve the success rate of catheterization. Currently, the commonly used methods are divided into infusion conductive positioning and guidewire conductive positioning. However, the two positioning methods use two different sets of equipment, so the operator needs to find the corresponding equipment according to the patient's requirements. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a venous puncture electrocardiograph positioning device which can meet the use requirements of infusion conductive positioning or guide wire conductive positioning.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a venous puncture electrocardiotocographic positioning device, comprising a tube body, a valve body and an electrode; the tube body is provided with a catheter joint, an infusion joint and a guide wire fixing joint;
[0005] The valve core of the valve body is rotatably arranged in the inner cavity of the tube body to control the communication relationship between the catheter connector, the infusion connector and the guide wire fixed connector and the inner cavity of the valve core of the valve body;
[0006] When the conductive positioning is selected for infusion, the inner cavity of the valve core of the valve body is connected to the catheter connector and the infusion connector respectively, and the inner cavity of the valve core of the valve body is separated from the guide wire fixed connector;
[0007] When the guide wire conductive positioning is selected, the valve core cavity of the valve body is connected to the guide wire fixed joint, and the valve core cavity of the valve body is separated from the catheter joint and the infusion joint;
[0008] The electrode is arranged in the inner cavity of the valve core of the valve body, and a conductor passing through the tube body is arranged on the electrode.
[0009] Furthermore, the guide wire fixing joint is tubular, and a rubber layer is provided on the inner wall of the guide wire fixing joint.
[0010] Furthermore, the operating handle of the valve body is provided with a direction mark corresponding to the interface on the valve core of the valve body.
[0011] Furthermore, the length of the conductor extending out of the tube body is 1 cm to 1.5 cm.
[0012] Furthermore, at least the portion of the conductor extending out of the tube body is cylindrical.
[0013] The beneficial effect of the utility model is that: a tube body with a catheter connector, an infusion connector and a guide wire fixed connector is added, and a valve body is arranged on the tube body to control the communication relationship between the catheter connector, the infusion connector and the guide wire fixed connector and the valve core inner cavity of the valve body. When the infusion conductive positioning is selected, the operator rotates the valve body to make the catheter connector and the infusion connector communicate with the valve core inner cavity of the valve body, and the valve core inner cavity of the valve body is isolated from the guide wire fixed connector, and then the infusion needle can be connected to the infusion connector, the catheter can be connected to the catheter connector, and the conductive clamp of the electrocardiogram monitor can be clamped to hold the conductor, and then the infusion conductive positioning can be performed. When the guide wire conductive positioning is selected, the operator rotates the valve body to make the guide wire fixed connector communicate with the valve core inner cavity of the valve body, and the valve core inner cavity of the valve body is isolated from the catheter connector and the infusion connector, and then one end of the guide wire is inserted into the valve core inner cavity of the valve body through the catheter connector to contact with the electrode, and the conductive clamp of the electrocardiogram monitor can be clamped to hold the conductor, and then the guide wire conductive positioning can be performed. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of a venipuncture ECG positioning device of the utility model;
[0015] Figure 2 It is a cross-sectional structural diagram of a venipuncture electrocardiotocographic positioning device of the utility model;
[0016] Description of labels:
[0017] 1. Tube body; 11. Catheter connector; 12. Infusion connector; 13. Guidewire fixing connector;
[0018] 2. Valve body; 21. Operating handle;
[0019] 3. Electrode; 31. Conductor. DETAILED DESCRIPTION
[0020] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.
[0021] Please refer to Figure 1 and Figure 2 As shown, the utility model is a venous puncture electrocardiotocographic positioning device, comprising a tube body 1, a valve body 2 and an electrode 3; the tube body 1 is provided with a catheter connector 11, an infusion connector 12 and a guide wire fixing connector 13;
[0022] The valve core of the valve body 2 is rotatably disposed in the inner cavity of the tube body 1 to control the communication relationship between the catheter connector 11, the infusion connector 12 and the guide wire fixed connector 13 and the inner cavity of the valve core of the valve body 2;
[0023] When the conductive positioning for infusion is selected, the inner cavity of the valve core of the valve body 2 is respectively connected with the catheter connector 11 and the infusion connector 12, and the inner cavity of the valve core of the valve body 2 is separated from the guide wire fixing connector 13;
[0024] When the guide wire conductive positioning is selected, the valve core cavity of the valve body 2 is connected to the guide wire fixed joint 13, and the valve core cavity of the valve body 2 is separated from the catheter joint 11 and the infusion joint 12;
[0025] The electrode 3 is disposed in the inner cavity of the valve core of the valve body 2 , and a conductor passing through the tube body 1 is disposed on the electrode 3 .
[0026] Working principle: When the infusion conductive positioning is selected, the operator rotates the valve body 2 to connect the catheter connector 11 and the infusion connector 12 with the valve core lumen of the valve body 2, and the valve core lumen of the valve body 2 is isolated from the guide wire fixing connector 13, and then the infusion needle can be connected to the infusion connector 12, the catheter to the catheter connector 11, and the conductive clip of the ECG monitor clamps the conductor 31. During the positioning process, the operator uses venipuncture to insert the catheter into the vein, and the operator pushes physiological saline at a uniform speed through the infusion connector 12 so that the ECG monitor can use the electrode 3 to contact the physiological saline to obtain the intracavitary electrocardiogram, while the operator slowly inserts the catheter in centimeters. At the same time, the operator needs to continuously observe the shape of the P wave in the intracavitary electrocardiogram to determine the location where the catheter has reached. It should be noted that the operator needs to continuously push physiological saline to ensure that the valve is open to avoid the intracavitary electrocardiogram signal being cut off. When the catheter tip is in the peripheral vein, the P wave has no significant difference from the surface electrocardiogram; when the catheter tip enters the superior vena cava, the P wave gradually increases; when the catheter tip enters the middle and lower segments of the superior vena cava, the P wave increases significantly, and the shape tends to be high and sharp; when the catheter tip reaches the junction of the superior vena cava and the right atrium, the P wave reaches its peak; when the catheter enters the middle or lower part of the right atrium, bidirectional P waves or P wave amplitude decline may occur. At this time, stop feeding the catheter and retract the catheter until the P wave shows the highest positive peak level, and then retract the catheter 0.5-1cm. This is the ideal position for the catheter tip.
[0027] When the guide wire conductive positioning is selected, the operator rotates the valve body 2 to connect the guide wire fixing joint 13 with the valve core inner cavity of the valve body 2, and the valve core inner cavity of the valve body 2 is isolated from the catheter joint 11 and the infusion joint 12, and then inserts one end of the guide wire into the valve core inner cavity of the valve body 2 through the guide wire fixing joint 13 to contact the electrode 3, and clamps the conductor 31 with the conductive clip of the electrocardiograph. During the positioning process, the operator uses venipuncture to slowly insert the other end of the guidewire into the vein in centimeters. Since the ECG monitor can use the contact between electrode 3 and the guidewire to obtain the intracavitary electrocardiogram, the operator needs to continuously observe the shape of the P wave in the intracavitary electrocardiogram to determine the position where the guidewire reaches. When the tip of the guidewire is in the peripheral vein, the P wave has no significant difference from the surface electrocardiogram; when the tip of the guidewire enters the superior vena cava, the P wave gradually increases; when the tip of the guidewire enters the middle and lower sections of the superior vena cava, the P wave vibration increases significantly, and the shape tends to be high and sharp; when the tip of the guidewire reaches the junction of the superior vena cava and the right atrium, the P wave reaches a peak; when the guidewire enters the middle or lower part of the right atrium, a bidirectional P wave or a drop in the P wave amplitude may appear. At this time, stop sending the guidewire and retract the guidewire until the P wave shows the highest positive peak level, and then retract the guidewire 0.5-1cm. This is the ideal position for the catheter tip to be left, and measure the length of the exposed guidewire. The total length of the guidewire minus the length of the exposed guidewire gives the length of the guidewire in the body, which is the required length of the catheter. According to the required length, the catheter is inserted into the blood vessel along the guidewire and finally withdrawn from the guidewire.
[0028] Among them, the preferred electrode 3 is a tubular structure, which can not only avoid affecting the flow of saline from the infusion connector 12 to the catheter connector 11, but also increase the contact area between the electrode 3 and the saline, thereby further ensuring that the ECG monitor obtains the intracavitary electrocardiogram.
[0029] Furthermore, the guidewire fixing joint 13 is tubular, and a rubber layer (not shown in the figure) is provided on the inner wall of the guidewire fixing joint 13 .
[0030] From the above description, it can be seen that the rubber layer is used to wrap the part of the guide wire inserted into the valve core cavity of the valve body 2 to prevent the part of the guide wire that contacts the electrode 3 from moving significantly, thereby affecting the ECG obtained by the ECG monitor.
[0031] Please refer to Figure 1 As shown, further, the operating handle 21 of the valve body 2 is provided with a direction mark corresponding to the interface on the valve core of the valve body 2.
[0032] As can be seen from the above description, the operator can know how to rotate the operating handle 21 to achieve the desired connection relationship between the catheter connector 11, the infusion connector 12 and the guide wire fixing connector 13 through the direction mark.
[0033] Furthermore, the length of the conductor 31 extending out of the tube body 1 is 1 cm to 1.5 cm.
[0034] From the above description, it can be seen that the extension of 1 cm to 1.5 cm can not only ensure the reliability of the conductive clip of the ECG monitor, but also reduce the possibility of the conductor 31 interfering with the operator as much as possible.
[0035] Furthermore, at least the portion of the conductor 31 extending out of the tube body 1 is cylindrical.
[0036] From the above description, it can be seen that the portion of the conductor 31 extending out of the tube body 1 is cylindrical, which can be better clamped by the conductive clamp of the electrical monitor.
[0037] Embodiment 1
[0038] A venipuncture ECG positioning device, please refer to Figure 1 and Figure 2 As shown, it includes a tube body 1, a valve body 2 and an electrode 3; the tube body 1 is provided with a catheter connector 11, an infusion connector 12 and a guide wire fixed connector 13; the valve core of the valve body 2 is rotatably arranged in the inner cavity of the tube body 1 to control the communication relationship between the catheter connector 11, the infusion connector 12 and the guide wire fixed connector 13 and the valve core inner cavity of the valve body 2; when the infusion conductive positioning is selected, the valve core inner cavity of the valve body 2 is communicated with the catheter connector 11 and the infusion connector 12 respectively, and the valve core inner cavity of the valve body 2 is separated from the guide wire fixed connector 13; when the guide wire conductive positioning is selected, the valve core inner cavity of the valve body 2 is communicated with the guide wire fixed connector 13, and the valve core inner cavity of the valve body 2 is separated from the catheter connector 11 and the infusion connector 12; the electrode 3 is arranged in the valve core inner cavity of the valve body 2, and a conductor passing through the tube body 1 is arranged on the electrode 3. The guide wire fixed connector 13 is tubular, and a rubber layer (not shown in the figure) is arranged on the inner wall of the guide wire fixed connector 13. The operating handle 21 of the valve body 2 is provided with a direction mark corresponding to the interface on the valve core of the valve body 2. The length of the conductor 31 extending out of the tube body 1 is 1.5 cm. At least the part of the conductor 31 extending out of the tube body 1 is cylindrical.
[0039] Working principle: When the infusion conductive positioning is selected, the operator rotates the valve body 2 to connect the catheter connector 11 and the infusion connector 12 with the valve core lumen of the valve body 2, and the valve core lumen of the valve body 2 is isolated from the guide wire fixing connector 13, and then the infusion needle can be connected to the infusion connector 12, the catheter to the catheter connector 11, and the conductive clip of the ECG monitor clamps the conductor 31. During the positioning process, the operator uses venipuncture to insert the catheter into the vein, and the operator pushes physiological saline at a uniform speed through the infusion connector 12 so that the ECG monitor can use the electrode 3 to contact the physiological saline to obtain the intracavitary electrocardiogram, while the operator slowly inserts the catheter in centimeters. At the same time, the operator needs to continuously observe the shape of the P wave in the intracavitary electrocardiogram to determine the location where the catheter has reached. It should be noted that the operator needs to continuously push physiological saline to ensure that the valve is open to avoid the intracavitary electrocardiogram signal being cut off. When the catheter tip is in the peripheral vein, the P wave has no significant difference from the surface electrocardiogram; when the catheter tip enters the superior vena cava, the P wave gradually increases; when the catheter tip enters the middle and lower segments of the superior vena cava, the P wave increases significantly, and the shape tends to be high and sharp; when the catheter tip reaches the junction of the superior vena cava and the right atrium, the P wave reaches its peak; when the catheter enters the middle or lower part of the right atrium, bidirectional P waves or P wave amplitude decline may occur. At this time, stop feeding the catheter and retract the catheter until the P wave shows the highest positive peak level, and then retract the catheter 0.5-1cm. This is the ideal position for the catheter tip.
[0040] When the guide wire conductive positioning is selected, the operator rotates the valve body 2 to connect the guide wire fixing joint 13 with the valve core inner cavity of the valve body 2, and the valve core inner cavity of the valve body 2 is isolated from the catheter joint 11 and the infusion joint 12, and then inserts one end of the guide wire into the valve core inner cavity of the valve body 2 through the guide wire fixing joint 13 to contact the electrode 3, and clamps the conductor 31 with the conductive clip of the electrocardiograph. During the positioning process, the operator uses venipuncture to slowly insert the other end of the guidewire into the vein in centimeters. Since the ECG monitor can use the contact between electrode 3 and the guidewire to obtain the intracavitary electrocardiogram, the operator needs to continuously observe the shape of the P wave in the intracavitary electrocardiogram to determine the position where the guidewire reaches. When the tip of the guidewire is in the peripheral vein, the P wave has no significant difference from the surface electrocardiogram; when the tip of the guidewire enters the superior vena cava, the P wave gradually increases; when the tip of the guidewire enters the middle and lower sections of the superior vena cava, the P wave vibration increases significantly, and the shape tends to be high and sharp; when the tip of the guidewire reaches the junction of the superior vena cava and the right atrium, the P wave reaches a peak; when the guidewire enters the middle or lower part of the right atrium, a bidirectional P wave or a drop in the P wave amplitude may appear. At this time, stop sending the guidewire and retract the guidewire until the P wave shows the highest positive peak level, and then retract the guidewire 0.5-1cm. This is the ideal position for the catheter tip to be left, and measure the length of the exposed guidewire. The total length of the guidewire minus the length of the exposed guidewire gives the length of the guidewire in the body, which is the required length of the catheter. According to the required length, the catheter is inserted into the blood vessel along the guidewire and finally withdrawn from the guidewire.
[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.
Claims
1. A venipuncture electrocardiographic positioning device, characterized in that: It includes a tube body, a valve body and an electrode; the tube body is provided with a catheter joint, an infusion joint and a guide wire fixing joint; The valve core of the valve body is rotatably arranged in the inner cavity of the tube body to control the communication relationship between the catheter connector, the infusion connector and the guide wire fixed connector and the inner cavity of the valve core of the valve body; When the conductive positioning is selected for infusion, the inner cavity of the valve core of the valve body is connected to the catheter connector and the infusion connector respectively, and the inner cavity of the valve core of the valve body is separated from the guide wire fixed connector; When the guide wire conductive positioning is selected, the valve core cavity of the valve body is connected to the guide wire fixed joint, and the valve core cavity of the valve body is separated from the catheter joint and the infusion joint; The electrode is arranged in the inner cavity of the valve core of the valve body, and a conductor passing through the tube body is arranged on the electrode.
2. The venipuncture ECG positioning device according to claim 1, characterized in that: The guide wire fixing joint is in a tubular shape, and a rubber layer is arranged on the inner wall of the guide wire fixing joint.
3. The venipuncture ECG positioning device according to claim 1, characterized in that: The operating handle of the valve body is provided with a direction mark corresponding to the interface on the valve core of the valve body.
4. The venipuncture ECG positioning device according to claim 1, characterized in that: The length of the conductor extending out of the tube body is 1 cm to 1.5 cm.
5. The venipuncture ECG positioning device according to claim 1 or 4, characterized in that: At least the portion of the conductor extending out of the tube body is cylindrical.