CN212489914U - A lead line for monitoring central venous catheter point end position - Google Patents
A lead line for monitoring central venous catheter point end position Download PDFInfo
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- CN212489914U CN212489914U CN202020454913.1U CN202020454913U CN212489914U CN 212489914 U CN212489914 U CN 212489914U CN 202020454913 U CN202020454913 U CN 202020454913U CN 212489914 U CN212489914 U CN 212489914U
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- wire
- sleeve
- central venous
- venous catheter
- monitoring
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Abstract
The utility model discloses a lead wire for monitoring the position of the tip end of a central venous catheter, which belongs to the field of medical instruments and has the advantages that the connection between a guide wire and the lead wire is more stable, and the catheter can be filled with liquid; the first connecting part comprises a connecting sleeve, two ends of the connecting sleeve are respectively an injector connecting end and a guide wire connecting end, and the periphery of the connecting sleeve is provided with an electric wire body connecting end; the connecting sleeve is located the seal wire link is equipped with fixed sleeve, fixed sleeve with connecting sleeve fixed connection, fixed sleeve is equipped with the internal thread for connect the seal wire. The utility model is suitable for a monitoring central venous catheter most advanced position.
Description
Technical Field
The utility model relates to a lead line, in particular to a lead line for monitoring the position of the tip end of a central venous catheter.
Background
PICC catheterization is an insertion procedure in which a central venous catheter is inserted by peripheral venipuncture and the tip of the central venous catheter reaches the entrance of the superior vena cava or right atrium, and is mainly applied to patients who are treated by long-term venous transfusion, irritant drug infusion and intermittent transfusion. After the PICC placement is completed, it is necessary to determine whether the catheter tip is in the mid-inferior superior vena cava for safe use.
The existing advanced catheter tip positioning method in the PICC catheter placement process is to judge the position of the catheter tip through the change of an intracardiac electrogram P wave; namely an atrial endocardial electrical conduction coupling positioning method, which is called an electrocardiogram positioning method for short. The electrocardio-positioning method has good effect and can greatly reduce the catheter ectopic rate. Specifically, the electrocardiogram positioning method is a method for guiding the positioning of the catheter tip according to the characteristic change of a P wave by using an electrode to probe into a proximal cardiac end through a superior vena cava to pick up the P wave of an atrium in the PICC catheter placement process.
In order to obtain the P wave in the PICC catheterization process, the existing method is to connect a clip at each end of the lead wire, wherein one clip is clamped on the guide wire penetrating the catheter, and the other clip is clamped on the electrode plate.
Based on the practical experience and professional knowledge of the product engineering application for years, the designer actively carries out research and innovation by matching with the application of the theory, so as to create a lead wire for monitoring the position of the tip of the central venous catheter, and the lead wire has higher practicability.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lead line for monitoring central venous catheter most advanced position has the seal wire and leads the line connection more stable, can carry out the advantage of flushing simultaneously.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a lead wire for monitoring the position of the tip end of a central venous catheter comprises a wire body, a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are positioned at two ends of the wire body, the first connecting part is used for connecting a guide wire, and the second connecting part is used for connecting an electrocardiogram monitor;
the first connecting part comprises a connecting sleeve, two ends of the connecting sleeve are respectively an injector connecting end and a guide wire connecting end, and the periphery of the connecting sleeve is provided with an electric wire body connecting end;
the connecting sleeve is located the seal wire link is equipped with fixed sleeve, fixed sleeve with connecting sleeve fixed connection, fixed sleeve is equipped with the internal thread for connect the seal wire.
Furthermore, the second connecting portion comprises a connecting shell, and a cylindrical jack is formed in the connecting shell and used for inserting a plug-in buckle of the ECG monitor.
Furthermore, an electric wire protective sleeve extends integrally from the connecting shell, and the electric wire protective sleeve is coaxially sleeved on the electric wire body.
Furthermore, a plurality of through holes are formed in the periphery of the wire protective sleeve in a staggered mode.
Furthermore, the connecting sleeve is located the integrative guide cylinder that extends of seal wire connecting end, the guide cylinder is to keeping away from the syringe connecting end direction extends.
Furthermore, the connecting sleeve is located the syringe connecting end is equipped with the seal ring groove, be equipped with the sealing member in the seal ring groove.
Further, the sealing element is a sealing sheet, the bottom of the sealing sheet is fixedly connected with the bottom of the sealing ring groove, and a cross-shaped tearing line is formed in the sealing sheet from the center to the periphery in the radial direction.
Further, the length of the tearing line is smaller than the inner circle diameter of the sealing ring groove.
The utility model discloses following beneficial effect has:
the runner is formed in the middle of the connecting sleeve and used for achieving liquid flushing operation, the outer threads are arranged at the fixed end of the guide wire and the lead wire and fixed with the inner threads of the fixing sleeve, so that the guide wire and the lead wire are firmly connected, the first connecting portion and the guide wire are connected, the second connecting portion is communicated with the ECG monitor, the position of the tip of the central venous catheter is monitored, the accuracy of the position of the tip of the catheter is guaranteed, and a perspective method is avoided.
Compared with the mode that the existing guide wire and the lead wire are connected through the clamp, the fixing end of the guide wire and the lead wire is provided with the external thread, the fixing mode of the guide wire and the internal thread of the fixing sleeve enables the guide wire and the lead wire to be stably connected, and meanwhile, the runner in the middle of the connecting sleeve can also be used for flushing simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the whole lead wire in the embodiment;
fig. 2 is a schematic connection diagram of the components for embodying the first connection portion in the present embodiment;
fig. 3 is a schematic structural diagram for embodying the sealing sheet in this embodiment.
In the figure, 1, a wire body; 2. a connecting sleeve; 2a, an injector connecting end; 2b, a guide wire connecting end; 2c, connecting ends of the wire bodies; 3. fixing the sleeve; 4. connecting the shell; 41. a cylindrical receptacle; 411. a spring plate; 42. a guide cylinder; 5. a wire protective sleeve; 51. a through hole; 6. sealing the ring groove; 7. sealing the sheet; 71. and (6) tearing the line.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
A lead wire for monitoring the position of the tip of a central venous catheter is shown in figure 1 and comprises a wire body 1, a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are positioned at two ends of the wire body 1 and are used for connecting a guide wire, and the second connecting part is used for connecting an electrocardiogram monitor;
the first connecting part comprises a connecting sleeve 2, the two ends of the connecting sleeve 2 are respectively an injector connecting end 2a and a guide wire connecting end 2b, and the periphery of the connecting sleeve 2 is provided with an electric wire body connecting end 2 c; connecting sleeve 2 is located seal wire link 2b and is equipped with fixed sleeve 3, fixed sleeve 3 and connecting sleeve 2 fixed connection, and fixed sleeve 3 is equipped with the internal thread for connect the seal wire.
The runner is formed in the middle of the connecting sleeve 2 and used for achieving liquid flushing operation, the outer threads are arranged at the fixed end of the guide wire and the lead wire and fixed with the inner threads of the fixing sleeve 3, so that firm connection between the guide wire and the lead wire is achieved, connection between the first connecting portion and the guide wire is achieved, the second connecting portion is communicated with the ECG monitor, the position of the tip of the central venous catheter is monitored, accuracy of the position of the tip of the catheter is guaranteed, and a perspective method is avoided.
Compare with the mode that current seal wire and lead the line and pass through the clip and be connected, the seal wire is equipped with the external screw thread with the stiff end of leading the line, with the internal thread fixed mode of fixed sleeve 3, makes and realizes stable connection between seal wire and the line of leading, and the runner in 2 middle parts of connecting sleeve can also carry out the flushing operation simultaneously.
As shown in fig. 2, the second connecting portion includes a connecting housing 4, and a cylindrical insertion hole 41 is formed in the connecting housing 4 for inserting a buckle of the electrocardiograph monitor, wherein the cylindrical insertion hole 41 is made of a metal material, and elastic pieces 411 can be arranged on two sides of the cylindrical insertion hole 41, so that the buckle of the electrocardiograph monitor can be firmly connected when being inserted into the cylindrical insertion hole 41, and the probability that the buckle falls off from the cylindrical insertion hole 41 is reduced.
As shown in fig. 2, the connecting housing 4 integrally extends with a wire sheath 5, and the wire sheath 5 is coaxially sleeved on the wire body 1. The periphery of the wire protective sleeve 5 is provided with a plurality of through holes 51 in a staggered manner. The wire protective sleeve 5 can be used for protecting the connecting position of the wire body 1 and the cylindrical jack 41, and the through hole 51 is beneficial to heat dissipation of the connecting position and avoids heat accumulation at the connecting position.
As shown in fig. 1, a guide cylinder 42 is integrally extended from the connection sleeve 2 at the guide wire connection end 2b, and the guide cylinder 42 extends in a direction away from the syringe connection end 2 a. The thread is equipped with the external screw thread with the stiff end of leading the line, and is fixed with the internal thread of fixed sleeve 3, and here, the guide wire can establish a location section of thick bamboo with the stiff end of leading the line, and a location section of thick bamboo periphery is located to the external screw thread, and guide cylinder 42 cooperates with a location section of thick bamboo for the preliminary location of guide wire and fixed sleeve 3.
As shown in fig. 1 and 3, the connecting sleeve 2 is provided with a sealing ring groove 6 at the syringe connecting end 2a, and a sealing member is provided in the sealing ring groove 6. The provision of a seal, which prevents air from entering the conduit, significantly reduces the likelihood of bacterial ingress within the coupling sleeve 2 and thus the likelihood of infection.
As shown in fig. 1 and 3, the sealing element is a sealing sheet 7, the bottom of the sealing sheet 7 is fixedly connected with the bottom of the sealing ring groove 6, here, the sealing sheet 7 and the sealing ring groove 6 can be connected in an adhesive manner, and the sealing sheet 7 is provided with a cross-shaped tear line 71 along the radial direction from the center to the outer periphery. When the syringe is inserted into the sealing ring groove 6 and enters the connecting sleeve 2, the tearing line 71 is broken under the action of external force, and meanwhile, the sealing sheet 7 can wrap the head of the syringe to ensure the sealing in the cavity of the connecting sleeve 2. Preferably, the length of the tear line 71 is smaller than the inner circle diameter of the seal ring groove 6, so that the seal piece 7 can be sufficiently attached to the bottom of the seal ring groove 6, and the fixation of the seal piece 7 and the seal ring groove 6 is not affected by the fracture of the tear line 71.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The lead wire for monitoring the tip position of the central venous catheter is characterized by comprising a wire body (1), a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are positioned at two ends of the wire body (1), the first connecting part is used for connecting a guide wire, and the second connecting part is used for connecting an electrocardiogram monitor;
the first connecting part comprises a connecting sleeve (2), two ends of the connecting sleeve (2) are respectively an injector connecting end (2a) and a guide wire connecting end (2b), and the periphery of the connecting sleeve (2) is provided with an electric wire body connecting end (2 c);
the connecting sleeve (2) is located the seal wire connecting end (2b) is equipped with fixed sleeve (3), fixed sleeve (3) with connecting sleeve (2) fixed connection, fixed sleeve (3) are equipped with the internal thread for connect the seal wire.
2. The lead wire for monitoring the tip position of a central venous catheter according to claim 1, characterized in that the second connecting part comprises a connecting shell (4), and a cylindrical jack (41) is arranged on the connecting shell (4) for inserting a buckle of an electrocardiograph monitor.
3. The lead wire for monitoring the tip position of a central venous catheter according to claim 2, characterized in that the connecting shell (4) is integrally extended with a wire protecting sleeve (5), and the wire protecting sleeve (5) is coaxially sleeved on the wire body (1).
4. The lead wire for monitoring the tip position of a central venous catheter according to claim 3, characterized in that the wire protective sleeve (5) is provided with a plurality of through holes (51) in a staggered manner on the periphery.
5. A lead wire for monitoring the position of a central venous catheter tip according to claim 1, characterised in that the connection sleeve (2) has a guide cylinder (42) extending integrally at the guide wire connection end (2b), the guide cylinder (42) extending away from the syringe connection end (2 a).
6. A lead wire for monitoring the position of the tip of a central venous catheter according to claim 1, characterised in that the connection sleeve (2) is provided with a sealing ring groove (6) at the syringe connection end (2a), a sealing element being provided in the sealing ring groove (6).
7. The lead wire for monitoring the tip position of a central venous catheter according to claim 6, characterized in that the sealing element is a sealing sheet (7), the bottom of the sealing sheet (7) is fixedly connected with the bottom of the sealing ring groove (6), and the sealing sheet (7) is provided with a cross-shaped tearing line (71) from the center to the periphery in the radial direction.
8. A lead wire for monitoring the position of the tip of a central venous catheter according to claim 7, characterised in that the length of the tear line (71) is smaller than the inner circle diameter of the sealing ring groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020454913.1U CN212489914U (en) | 2020-03-31 | 2020-03-31 | A lead line for monitoring central venous catheter point end position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020454913.1U CN212489914U (en) | 2020-03-31 | 2020-03-31 | A lead line for monitoring central venous catheter point end position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212489914U true CN212489914U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020454913.1U Expired - Fee Related CN212489914U (en) | 2020-03-31 | 2020-03-31 | A lead line for monitoring central venous catheter point end position |
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| CN (1) | CN212489914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114795307A (en) * | 2022-05-06 | 2022-07-29 | 成都市第三人民医院 | Biopsy forceps capable of displaying forceps body position in real time |
-
2020
- 2020-03-31 CN CN202020454913.1U patent/CN212489914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114795307A (en) * | 2022-05-06 | 2022-07-29 | 成都市第三人民医院 | Biopsy forceps capable of displaying forceps body position in real time |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |