CN217286703U - Central venous catheter with hydrophilic coating - Google Patents
Central venous catheter with hydrophilic coating Download PDFInfo
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- CN217286703U CN217286703U CN202123411060.7U CN202123411060U CN217286703U CN 217286703 U CN217286703 U CN 217286703U CN 202123411060 U CN202123411060 U CN 202123411060U CN 217286703 U CN217286703 U CN 217286703U
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- catheter
- tube body
- hydrophilic coating
- catheter tube
- central venous
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Abstract
The utility model provides a central venous catheter with hydrophilic coating, it includes: the catheter comprises a catheter tube body, a catheter tube body and a catheter, wherein the proximal end of the catheter tube body is provided with a flexible conical tip, the outer diameter of the catheter tube body is 1-4mm, the length of the catheter tube body is 7-30cm, and at least one inner cavity is formed in the catheter tube body; the connecting handle is connected with the tail end of the catheter tube body, and at least one connecting cavity connected with the inner cavity of the catheter tube body is formed in the connecting handle; the catheter comprises a catheter body, at least one extension tube, a connecting handle and a connecting piece, wherein the catheter body is provided with an inner cavity; the flexible conical tip and the outer surface of the catheter body are provided with a hydrophilic coating. When the catheter is used, the hydrophilic coating can attach water molecules on the surface to enable the surface of the catheter to be ultra-smooth and not easily attached by thrombus, the risk of patient thrombus caused by long-term indwelling of the central venous catheter can be reduced, the resistance of the central venous catheter in the process of catheterization and catheter pulling can be reduced, and the injury to the patient blood vessel is reduced.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a central venous catheter with hydrophilic coating.
Background
The central venous catheter is mainly used for being inserted into a central venous system of a patient to realize the functions of inputting liquid medicine, drawing blood samples or measuring blood pressure and the like. The central venous catheter is widely applied to departments such as anesthesia departments, emergency departments, ICU wards and the like of hospitals, and can establish a good transfusion channel for severe patients, so that the blood pressure of the patients can be maintained during large-scale and rapid venous transfusion or emergency treatment.
When the central venous catheter in the prior art is used, the part of the central venous catheter entering a blood vessel of a human body is easily attached by thrombus, and the thrombus can be formed in the blood vessel of a patient after the central venous catheter is left for a long time.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a central venous catheter with hydrophilic coating to the central venous catheter who exists among the solution prior art leads to the problem of thrombus formation after keeping somewhere for a long time.
According to the embodiment of the utility model provides a central venous catheter with hydrophilic coating is proposed, it includes: the catheter comprises a catheter tube body, a catheter tube body and a catheter, wherein the proximal end of the catheter tube body is provided with a flexible conical tip, the outer diameter of the catheter tube body is 1-4mm, the length of the catheter tube body is 7-30cm, and at least one inner cavity is formed in the catheter tube body; the connecting handle is connected with the tail end of the catheter tube body, and at least one connecting cavity connected with the catheter tube body is formed in the connecting handle; the number of the extension pipes is the same as that of the inner cavities of the catheter tube body and that of the connecting cavities of the connecting handles; wherein at least a majority of the outer surface of the catheter tube is provided with a hydrophilic coating.
Wherein, under the condition that the inner cavities are a plurality of, the inner cavities are mutually independent and do not interfere with each other.
Wherein the hydrophilic coating is a high molecular polymer hydrophilic coating with hydrophilic groups or a monomer hydrophilic coating with hydrophilic groups.
Wherein at least a majority of the outer surface of the catheter tube including the flexible tapered tip is provided with a hydrophilic coating.
Wherein, all be provided with on at least one extension pipe and end the liquid clamp.
Wherein the end of the at least one extension tube has a luer taper fitting.
According to the utility model provides a central venous catheter with hydrophilic coating is provided with the hydrophilic coating that the one deck is smooth, antiseized glutinous, stable, wear-resisting, biocompatibility is good at pipe body surface. When the catheter is used, the hydrophilic coating can attach water molecules on the surface to enable the surface of the catheter body to be ultra-smooth, so that the catheter is not easily attached by thrombus in the indwelling process, and the risk of occurrence of patient thrombus caused by long-term indwelling of the central venous catheter can be reduced. Meanwhile, the resistance of the central venous catheter in the process of catheter placement and catheter pulling can be reduced, and the damage to the blood vessel of a patient is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic view of a single lumen central venous catheter having a hydrophilic coating in accordance with an embodiment of the present invention;
fig. 2 is a schematic view of a dual lumen central venous catheter having a hydrophilic coating in accordance with an embodiment of the present invention;
fig. 3 is a schematic view of a three-lumen central venous catheter having a hydrophilic coating in accordance with an embodiment of the present invention;
fig. 4 is a schematic view of a four-lumen central venous catheter having a hydrophilic coating in accordance with an embodiment of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following description will be given with reference to the embodiments of the present invention and the accompanying drawings, in which the technical solution of the present invention is clearly and completely described. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a central venous catheter with a hydrophilic coating according to an embodiment of the present invention includes at least: the flexible conical tip 1, the catheter tube body 2, the connecting handle 3, the extension tube 4, the hydrophilic coating 5, the joint 6 and the liquid stopping clamp 7.
The catheter tube 2 has a proximal end and a distal end, and the catheter tube 2 may have an outer diameter of 1-4mm and a length of 7-30 cm. The flexible conical tip 1 is arranged at the proximal end of the catheter tube body 2, and the flexible conical tip 1 can avoid the situation that the central venous catheter damages the blood vessel of a patient due to too deep catheterization in the catheterization process. One or more inner cavities are arranged in the catheter tube body 2, and under the condition that the number of the inner cavities is large, the inner cavities are independent and do not interfere with each other.
At the end of the catheter tube 2, the catheter tube 2 is connected to a connection handle 3. One or more connection lumens (not shown) may be provided in the stem 3 for communicating the inner lumen of the catheter tube 2 with the extension tubes 4, so that the number of extension tubes 4 is the same as the number of connection lumens.
In the embodiment shown in fig. 1, the number of the extension tube 4 is one, the number of the connection chamber is one, and the extension tube 4 is connected to the inner chamber of the catheter tube 2 through the connection chamber. Referring to fig. 2 to 4, in other embodiments, the number of the extension tubes 4 may also be two, three or four according to different use requirements, in which case, the number of the connection cavities is the same as the number of the extension tubes 4 and the number of the inner cavities of the catheter tube body, and each extension tube 4 is respectively communicated with the inner cavity of the catheter tube body 2 through one connection cavity. Under the condition that the extension tubes 4 are multiple, each inner cavity of the catheter tube body 2 is mutually independent and does not interfere with each other, so that the multiple extension tubes 4 can be simultaneously connected with any one or more devices of a liquid medicine input device, a blood sample extraction device and a blood pressure measuring device, and multiple functions can be simultaneously realized.
The end of the extension tube 4 has a fitting 6, in the present embodiment the fitting 6 may be a luer taper fitting. The connector 6 can be connected with a liquid medicine input device, a blood sample extraction device or a blood pressure measurement device, so that the functions of liquid medicine input, blood sample extraction or blood pressure measurement and the like of the central venous catheter are realized. The extension tube 4 is also provided with a liquid stopping clamp 7, and when the circulation of the liquid medicine or the blood needs to be stopped urgently, the liquid stopping clamp 7 can clamp the extension tube 4 to stop the input of the liquid medicine or the extraction of the blood.
In the present embodiment, at least most of the outer surface of the catheter tube 2 is provided with a hydrophilic coating 5, i.e. the catheter tube 2 is continuously coated with the hydrophilic coating 5 starting from the proximal flexible conical tip, and the length of the catheter tube 2 provided with the hydrophilic coating 5 is not less than half of the total length of the catheter tube 2. In other embodiments, the entire outer surface of the catheter tube 2 is provided with a hydrophilic coating. In practical applications, the hydrophilic coating 5 may be a hydrophilic coating of a high molecular polymer having hydrophilic groups or a hydrophilic coating of a monomer having hydrophilic groups. The hydrophilic coating 5 can form a smooth, anti-sticking, stable, wear-resistant and biocompatible hydrophilic coating on the outer surface of the catheter tube body 2. When the catheter is used, the hydrophilic coating can attach water molecules on the surface to enable the surface of the catheter body to be super-smooth, so that the catheter is not easily attached by thrombus in the indwelling process, and the risk of occurrence of patient thrombus caused by long-term indwelling of the central venous catheter can be reduced. Meanwhile, the resistance of the central venous catheter in the process of catheter placement and catheter pulling can be reduced, and the damage to the blood vessel of a patient is reduced.
The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A central venous catheter having a hydrophilic coating, comprising:
the catheter comprises a catheter tube body, a catheter tube body and a catheter, wherein the proximal end of the catheter tube body is provided with a flexible conical tip, the outer diameter of the catheter tube body is 1-4mm, the length of the catheter tube body is 7-30cm, and at least one inner cavity is formed in the catheter tube body;
a connection handle connected to the end of the catheter tube, the connection handle having at least one connection cavity therein connected to the inner cavity of the catheter tube;
the number of the extension pipes is the same as that of the inner cavities of the catheter tube body and that of the connecting cavities of the connecting handles;
wherein at least a majority of the outer surface of the catheter tube is provided with a hydrophilic coating.
2. The central catheter according to claim 1, wherein in the case of a plurality of said lumens, the lumens are independent of each other and do not interfere with each other.
3. The central venous catheter of claim 1, wherein the hydrophilic coating is a high molecular polymer hydrophilic coating having hydrophilic groups or a monomeric hydrophilic coating having hydrophilic groups.
4. A central venous catheter as claimed in claim 1 characterised in that at least a major part of the outer surface of the catheter tube including the flexible tapered tip is provided with a hydrophilic coating.
5. The central venous catheter of claim 1, wherein the at least one extension tube is provided with a fluid stop clip.
6. The central venous catheter of claim 1 wherein the tip of the at least one extension tube has a luer taper fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123411060.7U CN217286703U (en) | 2021-12-31 | 2021-12-31 | Central venous catheter with hydrophilic coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123411060.7U CN217286703U (en) | 2021-12-31 | 2021-12-31 | Central venous catheter with hydrophilic coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217286703U true CN217286703U (en) | 2022-08-26 |
Family
ID=82922641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123411060.7U Active CN217286703U (en) | 2021-12-31 | 2021-12-31 | Central venous catheter with hydrophilic coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217286703U (en) |
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2021
- 2021-12-31 CN CN202123411060.7U patent/CN217286703U/en active Active
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