Hydrophilic coating ventricular drainage tube and packaging device thereof

Abstract

The invention discloses a ventricular drainage tube with a hydrophilic coating and a packaging device of the ventricular drainage tube, and relates to the technical field of medical instruments, and the ventricular drainage tube comprises a drainage tube body which is of a hollow tubular structure; the drainage end is arranged at one end of the drainage tube body, and a plurality of drainage holes are formed in the drainage end; the connecting end is arranged at the other end of the drainage tube body, and a connector used for being connected with an external drainage device is arranged at the connecting end; the outer surface of the drainage tube body is coated with a hydrophilic coating. According to the ventricular drainage tube with the hydrophilic coating, the drainage tube body is of a hollow tubular structure, drainage liquid can enter the drainage tube body through the drainage holes in the drainage end and is drained out of a body through an external drainage device, the hydrophilic coating is arranged on the surface of the drainage tube, friction between the drainage tube and tissue is reduced, and the drainage effect is improved. Meanwhile, substance attachment is inhibited, the drainage effect is improved, and the infection risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a hydrophilic-coated ventricular drainage tube and its packaging device. Background Art

[0002] Ventricular drainage is a commonly used treatment method in neurosurgery, which is used to relieve excessive cerebrospinal fluid in the ventricular system caused by various reasons and reduce intracranial pressure, etc. The brain tissue is one of the most sensitive and important organs in the human body. Even minor injuries may trigger a series of serious complications, such as neurological dysfunction, epileptic seizures, etc., which will further affect the prognosis and quality of life of patients.

[0003] The existing ventricular drainage tubes have the following problems during use:

[0004] On the one hand, during the process of inserting the drainage tube into the ventricle, due to the relatively high friction coefficient between its material and tissues such as brain tissue, this relatively large frictional force will not only increase the difficulty of the doctor's operation, but also easily cause mechanical damage to the brain tissue.

[0005] On the other hand, the surface characteristics of the existing ventricular drainage tubes make it easy for substances such as proteins and cells to adhere and deposit on their surfaces. Over time, these adhered substances will gradually block the drainage holes of the drainage tube, resulting in poor drainage. Poor drainage not only cannot effectively reduce intracranial pressure, but also may cause cerebrospinal fluid to accumulate in the ventricular system, further aggravating the symptoms of intracranial hypertension. At the same time, these adhered substances also provide a good living environment for microorganisms such as bacteria, greatly increasing the risk of infection. In severe cases, intracranial infection may occur, which is an extremely dangerous and difficult-to-treat complication and may endanger the life of the patient. Medical staff can only try to dredge the blockage through external operations, such as flushing with normal saline. Injecting normal saline into the drainage tube will cause the inflammatory cerebrospinal fluid in the tube to flow back into the ventricle, triggering surgical risks. For patients with intracranial infection, especially ventriculitis, it is usually necessary to combine cerebrospinal fluid drainage and intraventricular drug injection for treatment. If only unilateral lateral ventricular puncture and catheterization are performed, injecting drugs through the drainage tube will cause the inflammatory cerebrospinal fluid in the tube to flow back into the ventricle; if bilateral lateral ventricular puncture and catheterization are performed to separately achieve the functions of drainage and drug injection, it will cause unnecessary trauma to the patient.

[0006] In addition, all existing hydrophilic-coated drainage tubes need to be activated by using normal saline, etc. before the operation. The traditional preparation increases the preoperative preparation time, and during the activation process, the coating may become ineffective or be contaminated with bacteria due to contact with the coating.

[0007] Therefore, there is an urgent need for a ventricular drainage tube that can reduce tissue damage caused by the drainage tube and reduce the risk of infection. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to address the deficiencies in the prior art and design a hydrophilic-coated ventricular drainage tube and its packaging device. By providing a hydrophilic coating on the surface of the drainage tube, the friction between the drainage tube and tissues is reduced, damage to the brain tissue is minimized, while the attachment of substances is inhibited, the drainage effect is improved, the infection risk is reduced. At the same time, its drug injection, drainage, and irrigation functions are integrated on the same tube body to achieve a multi-functional drainage tube, and a hydrophilic coating activation device for the drainage tube is added to reduce the preoperative operation preparation time and facilitate the surgical operation.

[0009] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0010] In the first aspect, the present invention provides a ventricular drainage tube with a hydrophilic coating, comprising:

[0011] A drainage tube body, which is a hollow tubular structure;

[0012] A drainage end, which is arranged at one end of the drainage tube body and is provided with a plurality of drainage holes;

[0013] A connection end, which is arranged at the other end of the drainage tube body, and a connector for connecting to an external drainage device is provided at the connection end;

[0014] The outer surface of the drainage tube body is coated with a hydrophilic coating.

[0015] As a further technical solution of the present invention: the hydrophilic coating includes a surface coating solution and a bottom coating solution; wherein, the coating method of the hydrophilic coating includes:

[0016] Immerse the drainage tube body in the bottom coating solution for several seconds, vertically lift it out of the solution, and perform ultraviolet light irradiation to complete the bottom coating;

[0017] Immerse the drainage tube body with the bottom coating applied in the surface coating solution for several seconds, vertically lift it out of the solution at a uniform speed, and perform ultraviolet light irradiation to complete the surface coating.

[0018] As a further technical solution of the present invention: the surface coating solution is PVP (polyvinylpyrrolidone), and the solvents are anhydrous ethanol and ultrapure water.

[0019] As a further technical solution of the present invention: the bottom coating solution is 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone, and the solvent is anhydrous ethanol.

[0020] As a further technical solution of the present invention: the outer surface of the drainage tube body is provided with scale markings.

[0021] As a further technical solution of the present invention: the drainage tube body is one of silicone, polyurethane, and polyvinyl chloride.

[0022] In a second aspect, on the basis of the first embodiment, the present invention further provides a ventricular drainage tube with a hydrophilic coating, comprising:

[0023] A drainage tube body, which is a hollow tubular structure;

[0024] A drainage end, which is arranged at one end of the drainage tube body and is provided with a plurality of drainage holes;

[0025] A connection end, which is arranged at the other end of the drainage tube body, and a connector for connecting with an external drainage device is arranged at the connection end;

[0026] A drug delivery cavity, which is arranged inside the drainage tube body, one end of the drug delivery cavity extends to the outside of the drainage tube body and is provided with a first plugging head; the other end of the drug delivery cavity communicates with the drainage end;

[0027] The outer surface of the drainage tube body is coated with a hydrophilic coating.

[0028] In a third aspect, on the basis of the second embodiment, the present invention further provides a ventricular drainage tube with a hydrophilic coating, comprising:

[0029] A drainage tube body, which is a hollow tubular structure;

[0030] A drainage end, which is arranged at one end of the drainage tube body and is provided with a plurality of drainage holes;

[0031] A connection end, which is arranged at the other end of the drainage tube body, and a connector for connecting with an external drainage device is arranged at the connection end;

[0032] A drug delivery cavity, which is arranged inside the drainage tube body, one end of the drug delivery cavity extends to the outside of the drainage tube body and is provided with a first plugging head; the other end of the drug delivery cavity communicates with the drainage end;

[0033] A flushing cavity, which is arranged inside the drainage tube body, one end of the flushing cavity extends to the outside of the drainage tube body and is provided with a second plugging head; the other end of the flushing cavity communicates with the drainage end;

[0034] The outer surface of the drainage tube body is coated with a hydrophilic coating.

[0035] In a fourth aspect, the present invention further provides a packaging device for a ventricular drainage tube with a hydrophilic coating, comprising:

[0036] A drainage tube package for hermetically packaging the ventricular drainage tube with a hydrophilic coating, and a placement cavity for the ventricular drainage tube with a hydrophilic coating is arranged inside the drainage tube package body;

[0037] A water bag device, which is arranged on the side of the placement cavity for the ventricular drainage tube with a hydrophilic coating.

[0038] As a further technical solution of the present invention: sterile normal saline is provided inside the water bag device.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1. The present invention provides a ventricular drainage tube with a hydrophilic coating. The drainage tube body has a hollow tubular structure. The drained liquid can enter the drainage tube body through several drainage holes at the drainage end and is drained to the outside through an external drainage device. By providing a hydrophilic coating on the surface of the drainage tube, the friction between the drainage tube and the tissue is reduced, the damage to the brain tissue is decreased, and at the same time, the attachment of substances is inhibited, the drainage effect is improved, and the infection risk is reduced.

[0041] 2. In the embodiment of the present invention, a scale mark 101 is further provided on the outer surface of the drainage tube body, and the scale mark is used to accurately judge the depth of insertion of the drainage tube into the ventricle.

[0042] 3. The present invention can accurately inject drugs into the infection area through the drug administration cavity for patients with intracranial infections, especially ventriculitis, by providing a drug administration cavity.

[0043] 4. When the catheter is blocked, it can be flushed with normal saline or the like through the flushing cavity to avoid causing the inflammatory cerebrospinal fluid in the tube to flow back into the ventricle and cause diseases.

[0044] 5. The present invention adds a water bag device inside the drainage tube package, which is arranged at the front end or upper part of the drainage tube. The water bag is filled with a certain amount of sterile normal saline. Before the drainage tube is inserted into the human body, the normal saline in the water bag can be extruded by squeezing, further moistening the tissue around the front end of the drainage tube and reducing the insertion resistance. At the same time, the normal saline can also play a certain role in cleaning the tissue around the front end of the drainage tube and reducing the risk of infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural diagram of a ventricular drainage tube with a hydrophilic coating proposed by the present invention;

[0046] Figure 2 It is a structural diagram of another embodiment of a ventricular drainage tube with a hydrophilic coating proposed by the present invention;

[0047] Figure 3 It is a structural diagram of another embodiment of a ventricular drainage tube with a hydrophilic coating proposed by the present invention;

[0048] Figure 4 is Figure 3 a schematic cross-sectional view of the drainage tube body in

[0049] Figure 5Structural diagram of a packaging device for a ventricular drainage tube with a hydrophilic coating proposed by the present invention;

[0050] As shown in the figure:

[0051] 10 - Drainage tube body, 20 - Drainage end, 201 - Drainage holes, 30 - Connection end, 301 - Connector, 40 - Medication cavity, 401 - First plug, 50 - Flushing cavity, 501 - Second plug, 60 - Drainage tube packaging body, 601 - Placement cavity for hydrophilic coating ventricular drainage tube, 70 - Water bag device. Specific implementation mode

[0052] The following describes the specific implementation mode of the present invention in conjunction with the drawings and embodiments:

[0053] It should be noted that the structures, colors, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present invention. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the efficacy and purpose that the present invention can achieve, should still fall within the scope covered by the technical content disclosed by the present invention.

[0054] At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope that the present invention can implement.

[0055] Embodiment 1

[0056] As Figure 1 shown, the present invention provides a ventricular drainage tube with a hydrophilic coating, including:

[0057] The drainage tube body 10, and the drainage tube body 10 is a hollow tubular structure;

[0058] The drainage end 20, which is arranged at one end of the drainage tube body 10 and several drainage holes 201 are arranged on the drainage end 20;

[0059] The connection end 30, which is arranged at the other end of the drainage tube body 10, and a connector 301 for connecting to an external drainage device is arranged at the connection end 30;

[0060] The outer surface of the drainage tube body 10 is coated with a hydrophilic coating.

[0061] The present invention provides a ventricular drainage tube with a hydrophilic coating. The drainage tube body has a hollow tubular structure. The drainage liquid can enter the drainage tube body through a plurality of drainage holes at the drainage end and is drained to the outside through an external drainage device. By setting a hydrophilic coating on the surface of the drainage tube, the friction between the drainage tube and tissues is reduced, the damage to the brain tissue is decreased, and at the same time, the attachment of substances is inhibited, the drainage effect is improved, and the infection risk is reduced.

[0062] In an embodiment of the present invention, the hydrophilic coating includes a surface coating solution and a bottom coating solution; wherein, the coating method of the hydrophilic coating includes:

[0063] Immerse the drainage tube body in the bottom coating solution for several seconds, vertically lift it out of the solution, and perform ultraviolet light irradiation to complete the bottom coating;

[0064] Immerse the drainage tube body with the bottom coating applied in the surface coating solution for several seconds, vertically lift it out of the solution at a uniform speed, and perform ultraviolet light irradiation to complete the surface coating.

[0065] In an embodiment of the present invention, the surface coating solution is PVP (polyvinylpyrrolidone), and the solvents are anhydrous ethanol and ultrapure water.

[0066] In an embodiment of the present invention, the bottom coating solution is 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone, and the solvent is anhydrous ethanol.

[0067] In an embodiment of the present invention, a scale mark 101 is further provided on the outer surface of the drainage tube body, and the scale mark is used to accurately judge the depth of insertion of the drainage tube into the ventricle.

[0068] In an embodiment of the present invention, the drainage tube body is made of a medical-grade polymer material, and the medical-grade polymer material includes but is not limited to one of silicone, polyurethane, polyvinyl chloride, etc.

[0069] Embodiment 2

[0070] See Figure 2 , based on Embodiment 1, the present invention further provides a ventricular drainage tube with a hydrophilic coating, including:

[0071] A drainage tube body 10, the drainage tube body 10 has a hollow tubular structure;

[0072] A drainage end 20, provided at one end of the drainage tube body 10 and a plurality of drainage holes 201 are provided on the drainage end 20;

[0073] A connection end 30, provided at the other end of the drainage tube body 10, and a connection head 301 for connecting to an external drainage device is provided at the connection end 30;

[0074] The drug delivery cavity 40 is arranged inside the drainage tube body. One end of the drug delivery cavity extends to the outside of the drainage tube body and is provided with a first plug 401; the other end of the drug delivery cavity communicates with the drainage end.

[0075] The outer surface of the drainage tube body 10 is coated with a hydrophilic coating.

[0076] In the embodiment of the present invention, by setting the drug delivery cavity, for patients with intracranial infection, especially ventriculitis, the drug can be accurately injected into the infection area through the drug delivery cavity. When the drug delivery cavity is not in use, the injection port is blocked by a plug to prevent bacteria and dust from entering the ventricle.

[0077] Embodiment Three

[0078] See Figure 3 and Figure 4 , on the basis of Embodiment Two, the present invention further provides a ventriculostomy drainage tube with a hydrophilic coating, including:

[0079] The drainage tube body 10 is a hollow tubular structure.

[0080] The drainage end 20 is arranged at one end of the drainage tube body 10, and a plurality of drainage holes 201 are arranged on the drainage end 20.

[0081] The connection end 30 is arranged at the other end of the drainage tube body 10, and a connector 301 for connecting to an external drainage device is arranged at the connection end 30.

[0082] The drug delivery cavity 40 is arranged inside the drainage tube body. One end of the drug delivery cavity extends to the outside of the drainage tube body and is provided with a first plug 401; the other end of the drug delivery cavity communicates with the drainage end.

[0083] The flushing cavity 50 is arranged inside the drainage tube body. One end of the flushing cavity extends to the outside of the drainage tube body and is provided with a second plug 501; the other end of the flushing cavity communicates with the drainage end.

[0084] The outer surface of the drainage tube body 10 is coated with a hydrophilic coating.

[0085] When the catheter is blocked, it can be flushed with normal saline through the flushing cavity to prevent the inflammatory cerebrospinal fluid in the tube from flowing back into the ventricle and causing diseases. When injecting normal saline, it is injected from the flushing cavity and flows out from the drainage cavity to form a cycle, preventing the inflammatory cerebrospinal fluid in the tube from flowing back into the ventricle; when the flushing cavity is not in use, the flushing port is blocked by a plug to prevent bacteria and dust from entering the ventricle.

[0086] Embodiment Four

[0087] See Figure 5 , on the basis of Embodiments One to Three, the present invention further provides a hydrophilic package for a ventriculostomy drainage tube with a hydrophilic coating, including:

[0088] A drainage tube packaging body 60 for hermetically packaging a hydrophilic-coated ventricular drainage tube;

[0089] A hydrophilic-coated ventricular drainage tube placement cavity 601;

[0090] A water bag device 70 is arranged on the side of the hydrophilic-coated ventricular drainage tube placement cavity 601.

[0091] Wherein, sterile normal saline is arranged inside the water bag device 70.

[0092] In the embodiment of the present invention, the hydrophilic drainage tube needs to activate the coating before use. This time, a water bag device is added inside the drainage tube packaging, which is arranged at the front end or upper part of the drainage tube. The water bag is filled with a certain amount of sterile normal saline. Before the drainage tube is inserted into the human body, the normal saline in the water bag can be squeezed out to further moisten the tissue around the front end of the drainage tube and reduce the insertion resistance. At the same time, the normal saline can also play a certain role in cleaning the tissue around the front end of the drainage tube and reduce the risk of infection. Generally, before use, the normal saline in the water bag is squeezed out to infiltrate the catheter. During the operation, the packaging can be directly torn open, and the guide wire end can be held for implantation, avoiding the contact between the drainage tube and the human body, which may cause the coating or the surface of the drainage tube to come into contact with bacteria.

[0093] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydrophilic coating ventricular drainage tube, characterized in that: include: A drainage tube body, wherein the drainage tube body is a hollow tubular structure; A drainage end is arranged at one end of the drainage tube body and has a plurality of drainage holes; A connecting end is arranged at the other end of the drainage tube body, and a connector for connecting to an external drainage device is arranged at the connecting end; The outer surface of the drainage tube body is coated with a hydrophilic coating.

2. A hydrophilic coating ventricular drainage tube according to claim 1, characterized in that: The hydrophilic coating comprises a surface coating solution and a primer solution; wherein the coating method of the hydrophilic coating comprises: Soak the drainage tube body in the primer solution for a few seconds, pull it out vertically from the solution, and expose it to ultraviolet light to complete the primer coating; The drainage tube body coated with the primer is immersed in the surface coating solution for several seconds, and then vertically pulled out of the solution at a uniform speed, and subjected to ultraviolet light, and the surface coating is completed.

3. A hydrophilic coating ventricular drainage tube according to claim 2, characterized in that: The surface coating solution is PVP, and the solvent is anhydrous ethanol and ultrapure water.

4. A hydrophilic coating ventricular drainage tube according to claim 2, characterized in that: The primer solution is 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone, and the solvent is anhydrous ethanol.

5. The hydrophilic coating ventricular drainage tube according to claim 1, characterized in that: The outer surface of the drainage tube body is provided with scale marks.

6. The hydrophilic coating ventricular drainage tube according to claim 1, characterized in that: The drainage tube body is made of one of silicone, polyurethane and polyvinyl chloride.

7. A hydrophilic coating ventricular drainage tube according to any one of claims 1 to 6, characterized in that: Also includes: A drug delivery cavity, wherein the drug delivery cavity is arranged inside the drainage tube body, one end of the drug delivery cavity extends to the outside of the drainage tube body and is provided with a first plugging head; The other end of the drug delivery cavity is communicated with the drainage end.

8. A hydrophilic coating ventricular drainage tube according to any one of claims 1 to 6, characterized in that: Also includes: A flushing cavity, wherein the flushing cavity is arranged inside the drainage tube body, one end of the flushing cavity extends to the outside of the drainage tube body and is provided with a second plugging head; The other end of the flushing cavity is communicated with the drainage end.

9. A packaging device for a ventricular drainage tube with a hydrophilic coating, characterized in that: include: Drainage tube packaging, used for sealing and packaging a hydrophilic coating ventricular drainage tube, wherein a cavity for placing the hydrophilic coating ventricular drainage tube is arranged inside the drainage tube packaging body; A water bag device is arranged on the side of the hydrophilic coating ventricular drainage tube placement cavity.

10. The packaging device for a ventricular drainage tube with a hydrophilic coating according to claim 9, characterized in that: Sterile physiological saline is arranged inside the water bag device.

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