Multifunctional central venous catheter

Abstract

The utility model discloses a multifunctional central venous catheter, and relates to the technical field of medical instruments, the multifunctional central venous catheter comprises an outer sleeve internally provided with three cavities, one end of the outer sleeve is fixedly connected with a puncture assembly, the other end of the outer sleeve is provided with a fixing assembly, and one end, close to the puncture assembly, of the outer sleeve is provided with a detection assembly. Through cooperative arrangement of the outer cannula, the main chamber, the main catheter, the one-way valve and other structures, when a pulmonary artery duct or an endocardium temporary pace-making lead needs to be placed in the operation process, the pulmonary artery duct or the endocardium temporary pace-making lead can be pushed into the main catheter, and the end of the pulmonary artery duct or the endocardium temporary pace-making lead is moved into the body of a patient along the main catheter; the problems that the risk of corresponding complications of central vein puncture is increased and a large amount of time is wasted due to the fact that central vein puncture needs to be carried out again when a pulmonary artery catheter or an endocardium temporary pace-making lead needs to be placed in an operation of an existing venous catheter hand are solved as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a multifunctional central venous catheter. Background Art

[0002] The most commonly used central venous catheter in clinical practice can only provide infusion and central venous pressure monitoring. However, central venous catheters are often used in critically ill patients and require simultaneous monitoring of multiple indicators to provide timely and comprehensive information for clinical diagnosis and treatment.

[0003] The invention patent with publication number CN116224750A proposes a central venous catheter, comprising: a catheter body, provided with a temperature measurement channel, an isolation cavity and at least one infusion channel, wherein the isolation cavity separates the temperature measurement channel from the infusion channel;

[0004] A temperature probe, wherein the temperature probe is arranged in the temperature measurement channel, and a wire of the temperature probe is led out through the temperature measurement channel;

[0005] The infusion tubes are the same in number as the infusion channels, and one end of the infusion tubes is fixed to the catheter body and is in one-to-one communication with the infusion channels.

[0006] When the above-mentioned intravenous catheter operator needs to place a pulmonary artery catheter or a temporary endocardial pacing wire during surgery, central venous puncture is required again, and the placement can only be performed after the sheath is inserted. This not only increases the risk of corresponding complications of central venous puncture, but also wastes a lot of time. Utility Model Content

[0007] The utility model aims to solve or at least alleviate the problem that when a pulmonary artery catheter or a temporary endocardial pacing wire needs to be placed during surgery, the existing intravenous catheter operation needs to perform central venous puncture again and the placement can only be performed after the sheath is inserted, which not only increases the risk of corresponding complications of central venous puncture but also wastes a lot of time.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A multifunctional central venous catheter comprises an outer sleeve with three chambers inside, one end of the outer sleeve is fixedly connected to a puncture assembly, the other end of the outer sleeve is installed with a fixing assembly, and an end of the outer sleeve close to the puncture assembly is provided with a detection assembly. The three chambers include a main chamber and two side chambers respectively located on both sides of the main chamber, a main catheter with one end connected to the puncture assembly is passed through the main chamber, a one-way valve is installed at the end of the main catheter away from the puncture assembly, side catheters are passed through the two side chambers, and a heparin cap is fixedly connected to one end of the side catheter close to the fixing assembly.

[0010] By adopting the above technical solution, during the operation, the user first inserts the puncture part connected to a section of the outer sleeve into the user's neck or femoral vein, and continues to push the outer sleeve until the puncture part is pushed into the patient's superior vena cava, and then the section of the outer sleeve exposed outside the patient's body is fixed through the ear plate connected to the end. At this time, since the light detector is installed on the end of the outer sleeve close to the puncture part and is pushed into the patient's body together with the puncture part, the light emitted by the light emitting part of the light detector is reflected or refracted by the medium outside the outer sleeve and received by the light receiving part of the light detector, and the data is transmitted to the signal conversion connector through the optical fiber. The user can connect the signal conversion connector to the saturation connection line of the monitor. The numerical value is displayed on the monitor and intuitively presented to the user, so that the user's body condition is monitored in real time. When a pulmonary artery catheter or a temporary endocardial pacing wire needs to be inserted during the operation, the pulmonary artery catheter or the temporary endocardial pacing wire can be pushed into the main catheter, and the end of the pulmonary artery catheter or the temporary endocardial pacing wire moves along the main catheter until it is discharged from the tip hole of the puncture part into the patient's body, thereby avoiding as much as possible the problem that when a pulmonary artery catheter or a temporary endocardial pacing wire needs to be placed during the operation, the existing intravenous catheter technique needs to perform central venous puncture again, and the catheter can only be placed after the sheath is inserted, which not only increases the risk of corresponding complications of central venous puncture, but also wastes a lot of time.

[0011] Optionally, the puncture assembly is a puncture portion fixedly connected to the end of the outer sleeve, and an end of the puncture portion away from the outer sleeve is provided with a tip hole connected to the internal cavity of the puncture portion.

[0012] By adopting the above technical solution, a puncture part is provided to facilitate medical staff to insert the main catheter and the side catheter into the patient's vein through the sharp puncture part, and a tip hole is provided so that the user can push the pulmonary artery catheter or the endocardial temporary pacing wire out of the tip hole along the main catheter and extend it into the patient's body without the need for central vein puncture again.

[0013] Optionally, the fixing component includes an end head with a wing-shaped structure, and two symmetrically arranged ear plates are fixedly connected to the side walls on both sides of the end head, and fixing holes are opened on the free ends of the ear plates.

[0014] By adopting the above technical solution, after the user punctures the entire central venous catheter into the patient's body, the user can pass the external medical tape through the fixing hole opened on the ear plate, and fix the end to the patient's skin with the medical tape to fix the section of the central venous catheter outside the patient's body.

[0015] Optionally, the detection assembly includes two groups of side holes opened on both sides of one end of the outer sleeve close to the puncture portion, and the two groups of side holes are respectively connected to the two side catheter ends.

[0016] By adopting the above technical solution, when the user needs an infusion, the heparin cap installed on the side catheter can be connected to an external injection device, the drug can be injected into the side catheter through the external injection device, and discharged along the side hole to provide intravenous treatment for the user.

[0017] Optionally, the detection component also includes a light detector installed four centimeters away from one end of the outer sleeve near the puncture portion, an optical fiber electrically connected to the light detector is embedded inside the outer sleeve along the length of the outer sleeve, and a signal conversion connector is installed on the end of the optical fiber away from the light detector.

[0018] By adopting the above technical solution, the light detector includes a light emitting part and a light receiving part. The light emitted by the light emitting part is received by the light receiving part after being reflected or refracted by the medium outside the outer sleeve, and the data is transmitted to the signal conversion connector through the optical fiber. The user can connect the signal conversion connector to the saturation connection line of the monitor and display the numerical value on the monitor to intuitively show it to the user.

[0019] Optionally, a locking structure is installed on a section of the two side conduits located outside the fixing component.

[0020] By adopting the above technical solution, the locking structure includes a locking clip and a locking joint. The locking clip and the locking joint are arranged on the side catheter to seal the side catheter when the side catheter is not in use, thereby avoiding blood reflux and blockage inside the side catheter as much as possible.

[0021] In summary, the beneficial effects of this application are as follows:

[0022] The present application coordinates the structures such as the outer sheath, the main chamber, the main catheter and the one-way valve. When a pulmonary artery catheter or a temporary endocardial pacing wire needs to be inserted during an operation, it can be pushed into the main catheter, so that the end of the pulmonary artery catheter or the temporary endocardial pacing wire moves along the main catheter into the patient's body, thereby avoiding the problem that the existing intravenous catheter operator needs to perform central venous puncture again when a pulmonary artery catheter or a temporary endocardial pacing wire needs to be placed during an operation. The catheter can only be placed after the sheath is inserted, which not only increases the risk of corresponding complications of central venous puncture, but also wastes a lot of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall cross-sectional structure of this application;

[0024] Figure 2 This application Figure 1 A magnified view of the local details at center A;

[0025] Figure 3 It is a cross-sectional view of the outer sleeve of the present application.

[0026] Explanation of the reference numerals: 1. outer sleeve; 2. main chamber; 3. side chamber; 4. puncture part; 5. tip hole; 6. end; 7. ear plate; 8. side hole; 9. photodetector; 10. optical fiber; 11. signal conversion connector; 12. main catheter; 13. one-way valve; 14. side catheter; 15. heparin cap; 16. locking structure. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] See also Figure 1-3 A multifunctional central venous catheter comprises an outer sleeve 1 with three chambers formed inside. The outer sleeve 1 is used to protect the structure installed inside the chamber to prevent the structure inside the chamber from being rubbed or contaminated with bacteria.

[0029] One end of the outer sleeve 1 is fixedly connected to a puncture assembly for piercing the patient's large vein, and the other end of the outer sleeve 1 is installed with a fixing assembly. When the user pushes the puncture assembly into the patient's superior vena cava, the outer sleeve 1 exposed outside the patient's body can be fixed by the fixing assembly.

[0030] One end of the outer sleeve 1 close to the puncture assembly is provided with a detection assembly for real-time detection of central venous oxygen saturation and central venous temperature data.

[0031] The three chambers include a main chamber 2 and two side chambers 3 respectively located on both sides of the main chamber 2. A main catheter 12 having one end connected to the puncture assembly is passed through the main chamber 2. A one-way valve 13 is installed at the end of the main catheter 12 away from the puncture assembly. Through the setting of the one-way valve 13, the main catheter 12 can still maintain a sealed state after puncturing into the patient's body. Side catheters 14 are passed through the two side chambers 3. A heparin cap 15 is fixedly connected to one end of the side catheter 14 close to the fixing assembly.

[0032] Reference Figure 1 The puncture assembly is a puncture portion 4 fixedly connected to the end of the outer tube 1, and a tip hole 5 communicating with the inner cavity of the puncture portion 4 is provided at one end of the puncture portion 4 away from the outer tube 1. The puncture portion 4 is provided to facilitate medical personnel to insert the main catheter 12 and the side catheter 14 into the patient's vein through the puncture portion, and the tip hole 5 is provided so that the user can push the pulmonary artery catheter or the endocardial temporary pacing wire out of the tip hole 5 along the main catheter 12 and extend it into the patient's body without performing central vein puncture again.

[0033] Reference Figure 1The fixing assembly includes a wing-shaped terminal 6, and two symmetrically arranged ear plates 7 are fixedly connected to the side walls of the terminal 6. A fixing hole is provided on the free end of the ear plate 7. After the user inserts the whole central venous catheter into the patient's body, the user can pass the fixing hole provided on the ear plate 7 through the external medical tape, and fix the terminal 6 to the patient's skin through the medical tape to fix the section of the central venous catheter outside the patient's body.

[0034] Reference Figure 1 The detection assembly includes two sets of side holes 8 opened on both sides of one end of the outer tube 1 near the puncture part 4, and the two sets of side holes 8 are respectively connected to the ends of two side catheters 14. When the user needs to perform an infusion, the heparin cap 15 installed on the side catheter 14 can be connected to an external injection device, and the drug can be injected into the side catheter 14 through the external injection device and discharged along the side holes 8 to provide intravenous treatment for the user.

[0035] Reference Figure 1 The detection assembly also includes a light detector 9 installed at four centimeters of one end of the outer tube 1 close to the puncture part 4. An optical fiber 10 electrically connected to the light detector 9 is embedded inside the outer tube 1 along the length direction of the outer tube 1. A signal conversion connector 11 is installed on the end of the optical fiber 10 away from the light detector 9. The light detector 9 includes a light emitting part and a light receiving part. The light emitted by the light emitting part is reflected or refracted by the medium outside the outer tube 1 and then received by the light receiving part, and the data is transmitted to the signal conversion connector 11 through the optical fiber 10. The user can connect the signal conversion connector 11 to the saturation connection line of the monitor, and the numerical value is displayed on the monitor to the user intuitively.

[0036] Reference Figure 2 The two side catheters 14 are both provided with a locking structure 16 on a section outside the fixing assembly. The locking structure 16 includes a locking clip and a locking joint. The locking clip and the locking joint are provided on the side catheters 14 to seal the side catheters 14 when the side catheters 14 are not in use, so as to avoid blood reflux and blockage inside the side catheters 14.

[0037] The implementation principle of the present application is as follows: during the operation, the user first inserts the puncture portion 4 connected to a section of the outer sleeve 1 into the user's neck or femoral vein, and continues to push the outer sleeve 1 until the puncture portion 4 is pushed into the patient's superior vena cava, and then the section of the outer sleeve 1 exposed outside the patient's body is fixed by the ear plate 7 connected to the end 6. At this time, since the light detector 9 is installed on the end of the outer sleeve 1 close to the puncture portion 4 and is pushed into the patient's body together with the puncture portion 4, the light emitted by the light emitting portion of the light detector 9 is reflected or refracted by the medium outside the outer sleeve 1 and is received by the light receiving portion of the light detector 9, and the data is transmitted to the signal conversion connector 11 through the optical fiber 10. The user can connect the signal conversion connector 11 to the saturation of the monitor. The pulmonary artery catheter or the temporary endocardial pacing wire needs to be inserted during the operation, and the end of the pulmonary artery catheter or the temporary endocardial pacing wire moves along the main catheter 12 until it is discharged from the tip hole 5 of the puncture part 4 into the patient's body, thereby avoiding the problem that the existing intravenous catheter technique needs to perform central venous puncture again when a pulmonary artery catheter or a temporary endocardial pacing wire needs to be placed during the operation. The placement can only be performed after the sheath is inserted, which not only increases the risk of corresponding complications of central venous puncture, but also wastes a lot of time.

[0038] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multifunctional central venous catheter, comprising an outer sleeve (1) with three chambers formed therein, one end of the outer sleeve (1) being fixedly connected to a puncture assembly, the other end of the outer sleeve (1) being mounted with a fixing assembly, and the end of the outer sleeve (1) close to the puncture assembly being provided with a detection assembly, characterized in that: The three chambers include a main chamber (2) and two side chambers (3) respectively located on both sides of the main chamber (2); a main catheter (12) having one end connected to the puncture assembly is passed through the main chamber (2); a one-way valve (13) is installed at one end of the main catheter (12) away from the puncture assembly; side catheters (14) are passed through the two side chambers (3); a heparin cap (15) is fixedly connected to one end of the side catheter (14) close to the fixing assembly.

2. A multifunctional central venous catheter according to claim 1, characterized in that: The puncture assembly is a puncture portion (4) fixedly connected to the end of the outer sleeve (1), and an end of the puncture portion (4) away from the outer sleeve (1) is provided with a tip hole (5) connected to the internal cavity of the puncture portion (4).

3. A multifunctional central venous catheter according to claim 1, characterized in that: The fixing assembly comprises an end head (6) in a wing-shaped structure, and two side walls of the end head (6) are fixedly connected to two symmetrically arranged ear plates (7), and a fixing hole is formed on the free end of the ear plate (7).

4. A multifunctional central venous catheter according to claim 2, characterized in that: The detection assembly comprises two groups of side holes (8) opened on both sides of one end of the outer sleeve (1) close to the puncture portion (4), and the two groups of side holes (8) are respectively connected to the ends of the two side catheters (14).

5. A multifunctional central venous catheter according to claim 4, characterized in that: The detection assembly also includes a light detector (9) installed four centimeters away from one end of the outer sleeve (1) close to the puncture portion (4), an optical fiber (10) electrically connected to the light detector (9) is embedded inside the outer sleeve (1) along the length direction of the outer sleeve (1), and a signal conversion connector (11) is installed on the end of the optical fiber (10) away from the light detector (9).

6. A multifunctional central venous catheter according to claim 5, characterized in that: A locking structure (16) is installed on a section of the two side conduits (14) located outside the fixing assembly.

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