Internal jugular vein catheter delivery device

Abstract

The utility model discloses an internal jugular vein catheterization and delivery device, including a puncture needle, a two-way valve and a vacuum negative pressure sleeve, wherein the puncture needle is connected to the outlet end of the two-way valve, and the vacuum negative pressure sleeve is connected to any inlet end of the two-way valve; and further includes a guide wire assembly, wherein the guide wire assembly includes a connecting sleeve and a guide wire body, wherein the connecting sleeve is connected to any inlet end of the two-way valve, and the guide wire body is slidably arranged in the connecting sleeve, and when the connecting sleeve is connected to the outlet end of the two-way valve, the guide wire body extends into the puncture needle through the outlet end. The internal jugular vein catheterization and delivery device of the utility model can reduce the back-and-forth material collection operation during the operation process and stabilize the needle during the puncture process to prevent displacement, thereby increasing the success rate of puncture.

Description

Technical Field

[0001] The utility model relates to an internal jugular vein catheterization and delivery device, belonging to the technical field of medical equipment. Background Art

[0002] Clinically, internal jugular vein puncture and catheterization can not only provide an infusion channel for those who have difficulty in peripheral vein puncture, but also provide a guarantee for rapid infusion and postoperative intravenous hypernutrition therapy for patients with hemorrhagic shock. Therefore, internal jugular vein puncture and catheterization is a commonly used clinical procedure in surgical patients.

[0003] The existing internal jugular vein puncture and catheterization operation is to perform the puncture syringe insertion and guide wire insertion separately. On the one hand, the operating doctor needs to take consumables back and forth from the operation panel, which is not conducive to the operation; on the other hand, in the process of taking the guide wire from the operation panel, it is difficult to ensure that the hand fixes the puncture syringe, which can easily cause the puncture syringe to move in the blood vessel, increasing the difficulty of the subsequent guide wire insertion. There is room for improvement. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing internal jugular vein puncture and catheterization operation requires back and forth sampling, which is inconvenient, and the puncture needle is prone to move during the back and forth sampling process, which increases the difficulty of guide wire insertion.

[0005] In order to solve the above technical problems, the utility model provides an internal jugular vein catheter delivery device, which can reduce the back and forth material collection operation during the operation and stabilize the needle during the puncture process to prevent displacement and increase the success rate of puncture.

[0006] In order to achieve the above technical objectives and the above technical effects, this application is implemented through the following technical solutions:

[0007] An internal jugular vein catheter delivery device comprises a puncture needle, a two-way valve and a vacuum negative pressure sleeve, wherein the puncture needle is connected to the outlet end of the two-way valve, and the vacuum negative pressure sleeve is connected to any inlet end of the two-way valve;

[0008] It also includes a guide wire assembly, which includes a connecting sleeve and a guide wire body. The connecting sleeve is connected to either inlet end of the two-way valve, and the guide wire body is slidably inserted into the connecting sleeve. When the connecting sleeve is connected to the outlet end of the two-way valve, the guide wire body extends into the puncture needle through the outlet end.

[0009] Preferably, the vacuum negative pressure sleeve includes a vacuum tube and an elastic rubber plug. The vacuum tube is hollow and has an opening at one end. The elastic rubber plug is inserted at the opening of the vacuum tube. A plug hole is provided on the elastic rubber plug. A connecting needle tube is detachably provided at either inlet end of the two-way valve. The connecting needle tube is plugged into the plug hole and extends into the inner cavity of the vacuum tube.

[0010] Furthermore, a detachable cover is provided on the connecting needle tube.

[0011] Preferably, the connecting conduit is a cylindrical tube and is arranged in a curled shape.

[0012] Preferably, the guidewire body comprises an axial guidewire, a spring coil and a safety guidewire, the spring coil is wound around the axial guidewire, and the end of the axial guidewire is connected to the end of the spring coil through the safety guidewire.

[0013] Furthermore, the guide wire body is coated with a hydrophilic polymer layer.

[0014] The utility model provides an internal jugular vein catheter delivery device, which has the following advantages:

[0015] 1. The utility model internal jugular vein catheter delivery device adds a two-way valve and a puncture needle to the front section of the guide wire. One side of the two-way valve is connected to the negative pressure vacuum sleeve, and the other side is connected to the guide wire, so that the puncture syringe and the guide wire are integrated into one. Without changing the length and thickness of the guide wire, the use of the puncture kit is optimized, the tedious material collection work during the operation process is reduced, and the operator can grasp and fix the needle more steadily during the puncture process to prevent displacement and increase the success rate of puncture.

[0016] 2. The utility model internal jugular vein catheterization and delivery device, through the setting of the vacuum negative pressure sleeve, after the puncture needle enters the internal jugular vein, blood can enter the vacuum negative pressure sleeve from one of the valves, indicating that the puncture needle has entered the blood vessel, and the plug-in cooperation between the connecting needle tube and the elastic rubber plug in the vacuum negative pressure sleeve can prevent the vacuum negative pressure sleeve from being inserted too early and entering the interior, resulting in the failure to achieve the prompt effect.

[0017] 3. The utility model internal jugular vein catheter delivery device has high clinical operability, practicality and feasibility, and has a relatively simple structure, which is conducive to production and clinical application and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an axial schematic diagram of the overall structure of an internal jugular vein catheter delivery device connected to a needle tube in a capped state;

[0019] Figure 2 This is an axial schematic diagram of the overall structure of an internal jugular vein catheterization and delivery device connected to a vacuum negative pressure sleeve;

[0020] Figure 3 This is an exploded schematic diagram of the overall structure of an internal jugular vein catheter delivery device connected to a vacuum negative pressure sleeve;

[0021] In the figure:

[0022] 1-puncture needle; 2-two-way valve; 3-vacuum negative pressure sleeve; 31-vacuum tube; 32-elastic rubber plug; 321-plug hole; 4-connecting needle tube; 5-cover; 6-guidewire assembly; 61-connecting sleeve; 62-guidewire body; 621-axial guidewire; 622-spring coil; 623-safety guidewire. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technical personnel in the field without creative work are within the scope of protection of the present utility model.

[0024] Reference Figure 1-Figure 3 A device for placing an internal jugular vein catheter comprises a puncture needle 1, a two-way valve 2 and a vacuum negative pressure sleeve 3. The puncture needle 1 is connected to the outlet end of the two-way valve 2, and the vacuum negative pressure sleeve 3 is connected to any inlet end of the two-way valve 2. When performing a puncture operation, the outlet end of the two-way valve 2 is connected to the vacuum negative pressure sleeve 3. After the puncture needle 1 enters the internal jugular vein, blood can enter the vacuum negative pressure sleeve 3 from the two-way valve 2, thereby prompting the two-way valve 2 that the needle has entered the blood vessel, so that medical staff can enter the next medical operation more quickly.

[0025] In a further embodiment, the vacuum negative pressure sleeve 3 includes a vacuum tube 31 and an elastic rubber plug 32. The vacuum tube 31 is a hollow transparent tube with one end open. The elastic rubber plug 32 is inserted and fixed at the opening of the vacuum tube 31. The elastic rubber plug 32 is provided with a plug hole 321. A connecting needle tube 4 is fixedly installed at either inlet end of the two-way valve 2 by bolts. A sealing cover 5 is sleeved on the outer wall of the end of the connecting needle tube 4 away from the two-way valve 2. When performing a puncture operation, the sealing cover 5 is removed, and the connecting needle tube 4 and the plug hole 31 are connected. 21 is inserted into the inner cavity of the vacuum tube 31, and then the blood is sucked by the vacuum negative pressure in the vacuum tube 31. The setting of the elastic rubber plug 32 can ensure the sealing of the plug-in hole 321 when the vacuum negative pressure sleeve 3 is not in use; when the vacuum negative pressure sleeve 3 is in operation, the sealing between the inner wall of the plug-in hole 321 and the connecting needle tube 4 can be ensured, so as to ensure the normal suction of blood and better play a prompting role. In this embodiment, the sleeve of the cover 5 is based on the principle of friction force, which is a prior art and will not be elaborated on.

[0026] Reference Figure 1-Figure 3, an internal jugular vein catheterization and delivery device, further comprising a guide wire assembly 6, the guide wire assembly 6 comprising a connecting sleeve 61 and a guide wire body 62, the connecting sleeve 61 is connected to any inlet end of the two-way valve 2, that is, the connecting sleeve 61 and the vacuum negative pressure sleeve 3 can be installed at any position, the guide wire body 62 is slidably inserted into the connecting sleeve 61, and when the connecting sleeve 61 is connected to the outlet end of the two-way valve 2, the guide wire body 62 extends into the puncture needle 1 through the outlet end of the two-way valve 2, so as to extend into the human blood vessel through the puncture needle 1.

[0027] In a further embodiment, the connecting catheter is a cylindrical tube and is arranged in a curled shape. The curled shape is convenient for medical staff to grasp, and can also prevent the connecting catheter from being too long and inconvenient to operate. In actual applications, the outer walls of the connecting catheter in the curled state can also be fixed by a snap connection, making the connecting catheter more convenient and stable to grasp.

[0028] Reference Figure 1-Figure 3 In a further embodiment, the guide wire body 62 includes an axial guide wire 621, a spring coil 622 and a safety guide wire 623. The spring coil 622 is a stainless steel spring coil 622. The spring coil 622 is wound around the axial guide wire 621. The axial guide wire 621 is used to ensure the hardness of the guide wire body 62. The head end of the axial guide wire 621 is a gradually tapered tip, thereby making the head end softer. The end of the axial guide wire 621 is connected to the end of the spring coil 622 through the safety guide wire 623 to prevent the axial guide wire 621 from separating from the spring coil 622.

[0029] In a further embodiment, the guidewire body 62 is coated with a hydrophilic polymer layer (not shown in the figure), and the hydrophilic polymer layer can be a polytetrafluoroethylene layer to increase the smoothness of the guidewire body 62, which is beneficial for the advancement of the guidewire and the exchange of the catheter / guidewire. In this embodiment, the coating of the hydrophilic polymer layer is a prior art and will not be elaborated in detail.

[0030] The operation steps of the internal jugular vein catheter delivery device of the utility model are as follows:

[0031] (1) Expose the internal jugular vein puncture site and disinfect and lay a drape.

[0032] (2) The internal jugular vein is confirmed by ultrasound observation, and the puncture needle 1 is inserted into the skin at an angle of 45 degrees.

[0033] (3) After the puncture needle 1 enters the internal jugular vein, blood can enter the vacuum negative pressure sleeve 3 from one of the valves, indicating that the puncture needle 1 has entered the blood vessel.

[0034] (4) Finally, the guide wire body 62 is inserted into the internal jugular vein through another valve. The absence of resistance indicates that the guide wire body 62 has been successfully inserted. The puncture needle 1 is withdrawn, the skin is expanded, and the catheter is inserted into the internal jugular vein.

[0035] The above is only a preferred embodiment of the utility model, and is not any formal or substantial limitation of the utility model. It should be pointed out that ordinary technicians in this technical field can make some improvements and supplements without departing from the utility model, and these improvements and supplements should also be regarded as the protection scope of the utility model. Any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the spirit and scope of the utility model, which are all equivalent embodiments of the utility model; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the utility model are still within the scope of the technical solution of the utility model.

Claims

1. An internal jugular vein catheter delivery device, characterized in that: It comprises a puncture needle (1), a two-way valve (2) and a vacuum negative pressure sleeve (3), wherein the puncture needle (1) is connected to the outlet end of the two-way valve (2), and the vacuum negative pressure sleeve (3) is connected to either inlet end of the two-way valve (2); The invention also comprises a guide wire assembly (6), wherein the guide wire assembly (6) comprises a connecting sleeve (61) and a guide wire body (62), wherein the connecting sleeve (61) is connected to any inlet end of the two-way valve (2), and the guide wire body (62) is slidably arranged in the connecting sleeve (61), and when the connecting sleeve (61) is connected to the outlet end of the two-way valve (2), the guide wire body (62) extends into the puncture needle (1) through the outlet end.

2. The internal jugular vein catheter delivery device according to claim 1, characterized in that: The vacuum negative pressure sleeve (3) comprises a vacuum tube (31) and an elastic rubber plug (32); the vacuum tube (31) is hollow and has an opening at one end; the elastic rubber plug (32) is inserted into the opening of the vacuum tube (31); a plug hole (321) is provided on the elastic rubber plug (32); a connecting needle tube (4) is detachably provided at either inlet end of the two-way valve (2); the connecting needle tube (4) is plugged into the plug hole (321) and extends into the inner cavity of the vacuum tube (31).

3. The internal jugular vein catheter delivery device according to claim 2, characterized in that: The connecting needle tube (4) is detachably sleeved with a sealing cover (5).

4. The internal jugular vein catheter delivery device according to claim 1, characterized in that: The connecting sleeve is a cylindrical tube and is arranged in a curled shape.

5. The internal jugular vein catheter delivery device according to claim 1, characterized in that: The guide wire body (62) comprises an axial guide wire (621), a spring coil (622) and a safety guide wire (623); the spring coil (622) is wound around the axial guide wire (621); the end of the axial guide wire (621) is connected to the end of the spring coil (622) via the safety guide wire (623).

6. The internal jugular vein catheter delivery device according to claim 5, characterized in that: The guide wire body (62) is coated with a hydrophilic polymer layer.

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