CN220877432U - Catheter indwelling needle for radiography - Google Patents
Catheter indwelling needle for radiography Download PDFInfo
- Publication number
- CN220877432U CN220877432U CN202321773551.2U CN202321773551U CN220877432U CN 220877432 U CN220877432 U CN 220877432U CN 202321773551 U CN202321773551 U CN 202321773551U CN 220877432 U CN220877432 U CN 220877432U
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- China
- Prior art keywords
- catheter
- indwelling needle
- extension
- contrast
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002601 radiography Methods 0.000 title abstract description 5
- 229920000642 polymer Polymers 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000001802 infusion Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 229920006324 polyoxymethylene Polymers 0.000 claims description 14
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 13
- -1 polyoxymethylene Polymers 0.000 claims description 13
- 229920001634 Copolyester Polymers 0.000 claims description 9
- 229920000515 polycarbonate Polymers 0.000 claims description 9
- 239000004417 polycarbonate Substances 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000003550 marker Substances 0.000 claims 4
- 239000000645 desinfectant Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 5
- 231100000252 nontoxic Toxicity 0.000 abstract description 5
- 230000003000 nontoxic effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000002872 contrast media Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004595 color masterbatch Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229940039231 contrast media Drugs 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- HNMCSUXJLGGQFO-UHFFFAOYSA-N hexaaluminum;hexasodium;tetrathietane;hexasilicate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].S1SSS1.S1SSS1.[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] HNMCSUXJLGGQFO-UHFFFAOYSA-N 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000001057 purple pigment Substances 0.000 description 1
- 210000004994 reproductive system Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000001038 titanium pigment Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a radiography catheter retaining needle, which comprises: a cannula for establishing an infusion path; a sleeve bushing connected to the sleeve; an extension conduit connected to the cannula hub for transporting a liquid; a flow stop clip for controlling the flow of fluid within the extension catheter; and a conduit coupler connected to the extension conduit; wherein at least one of the sleeve liner, the extension tube, the flow stop clip, and the tube connector is made of a purple polymer and is provided with a marking formed by ultraviolet laser inscription. The contrast catheter indwelling needle provided by the utility model has the advantages that the mark formed on the purple polymer is marked by ultraviolet laser, the mark is clear and obvious, is nontoxic and harmless, cannot be rubbed by disinfectant, and can be widely used for contrast examination.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a radiography catheter indwelling needle.
Background
The use of peripheral intravenous infusion of contrast media is a method of clinical rapid diagnosis, with the preferred tool being a contrast catheter indwelling needle. The contrast agent is delivered to the vein of the human body through the high-pressure injector by the contrast catheter indwelling needle, clear diagnostic images are obtained through CT and magnetic resonance modes, and a doctor is helped to find hidden focuses, so that a more timely treatment scheme is obtained.
If the common indwelling needle is used for injecting contrast agent, the problems of deformation, fracture, ejection of a separation plug and the like of the catheter can occur, so that medical accidents are caused. However, in a practical environment of a hospital, a patient may need to perform different injections multiple times, for example, some inpatients already carry a common indwelling needle for transfusion, and when a patient is subjected to radiography, a needle is required to be inserted again, but at present, the distinguishing mark of the two needles is not obvious, and thus the injection error of a nurse is easily caused. In order to make the medical staff clearly distinguish between the catheter indwelling needle and the normal indwelling needle, it is necessary to add a mark for maximum pressure resistance and maximum injection flow rate to the catheter indwelling needle.
The conventional method is to print the mark on the product by means of ink printing. However, the ink contains a dry-promoting propellant, and may cause damage to the reproductive system by contact with the skin. In addition, the adhesive force of the ink is smaller, doctors can use organic solvents such as alcohol, iodophor and the like during sterilization, and marks printed by the ink are easy to wipe off when contacting with the organic solvents (such as sterilization alcohol). Another method is to inject melted polymer into a mold, reproducing the shape of the mold, and the marks may be protrusions or depressions. However, the color of the mark formed by this method is the same as the part itself, resulting in no mark being visible. Yet another method is to print on separate baffles and then combine the baffles and stopper together, which typically requires 2 molds to form 2 parts and then assemble, resulting in relatively high manufacturing costs.
Thus, there is a need for an indwelling needle with clear, durable, non-toxic and harmless markers that can be adapted for use in contrast situations.
Disclosure of utility model
In order to solve the technical problems in the prior art, the embodiment of the utility model provides a contrast catheter indwelling needle which is provided with a mark formed on a purple polymer by ultraviolet laser marking, is clear and obvious, cannot be easily rubbed off by a disinfectant, and is nontoxic and harmless.
According to one aspect of the present utility model, there is provided a contrast catheter indwelling needle comprising: a cannula for establishing an infusion path; a sleeve bushing connected to the sleeve; an extension conduit connected to the cannula hub for transporting a liquid; a flow stop clip for controlling the flow of fluid within the extension catheter; and a conduit coupler connected to the extension conduit; wherein at least one of the sleeve liner, the extension tube, the flow stop clip, and the tube connector is made of a purple polymer and is provided with a marking formed by ultraviolet laser inscription.
Alternatively, the sleeve liner is made of polycarbonate or copolyester.
Alternatively, the extension catheter is made of polyurethane.
Alternatively, the stopper clamp is made of polyoxymethylene.
Alternatively, the catheter adapter is made of polycarbonate or copolyester.
Optionally, the sleeve bushing, the flow stop clip and/or the conduit joint are injection molded and the extension conduit is extrusion molded.
Optionally, the withstand pressure of the contrast catheter indwelling needle is not less than 325PSI.
Optionally, at least one of the sleeve liner, the extension conduit, the stop clip, and the conduit fitting is provided with a planar region on which the indicia are formed.
Optionally, the indicia includes a maximum pressure resistance value and/or a maximum injection flow rate value.
Alternatively, the marked line width is 0.1mm-1mm and the marked line depth is 0.01mm-0.2mm.
Compared with the prior art, the technical scheme of the embodiment of the utility model has the following advantages:
According to an embodiment of the utility model, at least one of the sleeve bushing, the extension catheter, the flow stop clip and the catheter hub is made of a purple polymer and provided with a marking formed by ultraviolet laser inscription. The contrast catheter indwelling needle provided by the utility model has the mark formed on the purple polymer by ultraviolet laser inscription, is clear and obvious, cannot be easily rubbed by disinfectant, and is nontoxic and harmless.
Drawings
Other features and advantages of the present utility model will be better understood from the following detailed description of alternative embodiments taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and wherein:
FIG. 1 shows a schematic structural view of a contrast catheter indwelling needle according to an embodiment of the present utility model;
FIG. 2 shows a schematic structural view of a sleeve bushing of a contrast catheter indwelling needle according to an embodiment of the present utility model;
FIG. 3 shows a schematic structural view of a portion of an extension catheter of a contrast catheter indwelling needle according to an embodiment of the present utility model;
FIG. 4 illustrates a schematic structural view of a flow stop clip of a contrast catheter retention needle in accordance with an embodiment of the present utility model; and
Fig. 5 shows a schematic view of the structure of a catheter adapter of a contrast catheter indwelling needle according to an embodiment of the present utility model.
Detailed Description
The making and using of the embodiments are discussed in detail below. It should be understood, however, that the detailed description and the specific examples, while indicating specific ways of making and using the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The structural position of the various components as described, such as the directions of up, down, top, bottom, etc., is not absolute, but rather relative. When the individual components are arranged as shown in the figures, these directional expressions are appropriate, but when the position of the individual components in the figures changes, these directional expressions also change accordingly.
According to an embodiment of the present utility model, there is provided a contrast catheter indwelling needle including: a cannula for establishing an infusion path; a sleeve bushing connected to the sleeve; an extension conduit connected to the cannula hub for transporting a liquid; a flow stop clip for controlling the flow of fluid within the extension catheter; and a conduit coupler connected to the extension conduit; wherein at least one of the sleeve liner, the extension tube, the flow stop clip, and the tube connector is made of a purple polymer and is provided with a marking formed by ultraviolet laser inscription.
The contrast catheter indwelling needle according to the present utility model has a mark formed on a purple polymer by ultraviolet laser inscription, the mark being clear and noticeable and not easily rubbed off by a disinfectant. Fig. 1 shows a schematic configuration of a contrast catheter indwelling needle 100 according to an embodiment of the present utility model.
Specifically, the contrast catheter indwelling needle 100 includes a cannula 10, a cannula hub 20, an elongate catheter 30, a flow stop clip 40 and a catheter adapter 50. A trocar 11 is arranged in the sleeve 10 and inserted into a human body blood vessel to establish an infusion channel, and belongs to a liquid receiving component. The sleeve bushing 20 is connected with the sleeve 10 and belongs to a liquid receiving component. The inside of the extension pipe 30 can be circulated with liquid, one end is connected with the sleeve bushing 20, and the other end is connected with the pipe joint 50, which belongs to liquid receiving components. The stop clip 40 is used to control the flow of fluid within the extension tube 30, and is a non-fluid receiving component. The conduit coupler 50 is connected to the extension conduit 30 and belongs to a liquid receiving member.
Wherein at least one of the sleeve liner 20, the extension catheter 30, the stop clip 40, and the catheter hub 50 is made of a purple polymer and is provided with indicia formed by ultraviolet laser inscription.
In some embodiments, the sleeve liner 20 is made of polycarbonate or copolyester.
In some embodiments, the extension catheter 30 is made of polyurethane.
In some embodiments, the flow stop clip 40 is made of polyoxymethylene.
In some embodiments, the catheter adapter 50 is made of polycarbonate or copolyester.
In some embodiments, sleeve liner 20, stop clip 40, and/or conduit fitting 50 are injection molded and extension conduit 30 is extrusion molded.
In some embodiments, the withstand pressure of the contrast catheter indwelling needle 100 is not less than 325PSI.
In some embodiments, at least one of the sleeve liner 20, the extension conduit 30, the stop clip 40, and the conduit fitting 50 is provided with a planar region on which the indicia are formed.
In some embodiments, the indicia may include a maximum pressure resistance value and/or a maximum injection flow rate value. For example, the maximum pressure resistance value is denoted as Max XXX PSI, where XXX is set according to the actual level of the product, such as 325, and the maximum injection flow rate value is denoted as XX ml/s, where XX is set according to the actual level of the product, such as 6.5.
In some embodiments, the marked line width is 0.1mm-1mm and the marked line depth is within 0.2mm, e.g., 0.01mm-0.2mm.
Fig. 2 shows a schematic structural view of the sleeve bushing 20 of the contrast catheter indwelling needle 100 according to an embodiment of the present utility model. In the illustrated embodiment, sleeve liner 20 is made of a purple polycarbonate or purple copolyester and is provided with indicia formed by ultraviolet laser inscription, e.g., a maximum pressure rating of Max 325PSI and a maximum injection flow rate rating of 6.5ml/s.
Fig. 3 shows a schematic structural view of a portion of an extension catheter 30 of a contrast catheter indwelling needle 100 according to an embodiment of the present utility model. In the illustrated embodiment, extension catheter 30 is made of purple polyurethane and is provided with markings formed by ultraviolet laser inscription, e.g., a maximum pressure rating of Max 325PSI and a maximum injection flow rate rating of 6.5ml/s.
Fig. 4 shows a schematic structural view of a flow stop clip 40 of a contrast catheter indwelling needle 100 according to an embodiment of the present utility model. In the illustrated embodiment, the stopper clamp 40 is made of purple polyoxymethylene and is provided with indicia formed by ultraviolet laser inscription, for example, a maximum pressure resistance value of Max 325PSI and a maximum injection flow rate value of 6.5ml/s. The stopper clamp 40 is provided with a planar area 41, and a mark is formed on the planar area 41.
Fig. 5 shows a schematic structural view of the catheter adapter 50 of the contrast catheter indwelling needle 100 according to an embodiment of the present utility model. In the illustrated embodiment, the catheter adapter 50 is made of a purple polycarbonate or purple copolyester and is provided with indicia formed by ultraviolet laser inscription, e.g., a maximum pressure resistance value of Max 325PSI and a maximum injection flow rate value of 6.5ml/s.
According to an embodiment of the present utility model, for example, when forming the mark on the stopper 40 by ultraviolet laser scribing, an ultraviolet laser having a smaller wavelength is selected, and the thermal influence on the polymer is small, for example, an ultraviolet laser having a wavelength of 355nm is selected.
The polymeric material from which the flow stop clip 40 is made is preferably polyoxymethylene (commonly known as steel). During use, the flow stop clip 40 needs to be opened and closed for a plurality of times, and the polyoxymethylene has high mechanical strength, good deformation resistance and good corrosion resistance and weather resistance.
According to the embodiment of the utility model, the polyoxymethylene is easy to decompose into small molecules at high temperature and is not easy to form carbon, the polyoxymethylene matrix is burnt or gasified after being irradiated by ultraviolet laser, the internal components decompose to generate gaseous molecules, foaming phenomenon occurs, the bubbles are surrounded by the plastic matrix, a mixed phase with higher refractive index is obtained through proper laser energy irradiation, and light marks are displayed at foaming positions.
According to the embodiment of the utility model, the polyoxymethylene is easy to decompose into small molecules at high temperature, carbon is not easy to form, the marks marked by laser are grey white, the original color of the polyoxymethylene is pale white, and the color contrast between the marks and the part is not obvious, so that the marks are not clearly seen. The addition of dark pigment to the stopper 40 allows for a clearer contrast of the imprinted indicia (e.g., black, dark blue, dark green, dark red, purple, etc.), preferably purple to mark medical devices with pressure resistant capabilities.
According to an embodiment of the utility model, the arc surface causes the focal length of the laser to change, so that it is preferable to imprint the planar area of the part.
According to the embodiment of the utility model, purple pigment (such as ultramarine purple), titanium pigment (for improving temperature resistance) and dispersing agent (such as wax) are mixed into polyformaldehyde to prepare a color forming master batch; mixing the color master batch and the polyoxymethylene; adding the mixed raw materials into an injection molding machine together to heat and melt the mixed raw materials, stirring special honours by a screw rod, and performing injection molding in a mold to obtain a purple flow stop clamp; the violet flow stopping clamp is placed below a laser emitting head of a laser to carry out laser inscription. In some embodiments, the color concentrates comprise the following components in percentage by mass: 75.5% of polyoxymethylene, 9% of titanium dioxide, 6.5% of pigment powder, 9% of dispersing agent and 0.1% -100% of color master batch, for example 4% of raw materials by mass. Wherein + -1% falls within the scope of the utility model.
According to an embodiment of the utility model, important process parameters of laser scribing are as follows: speed (mm/s): 275-425; laser frequency (KHZ): 20-30 parts; q pulse width (microseconds): 5 to 10; current flow: 1A. The laser is an ultraviolet laser, and the laser wavelength is 355nm.
In order to obtain a clear and distinct marking, according to an embodiment of the present utility model, a pigment, preferably ultramarine violet, is added to the polyoxymethylene, polycarbonate, copolyester or polyurethane material to make the manufactured part (sleeve liner 20, extension pipe 30, stop clip 40 or pipe joint 50) appear dark colored, preferably in the region of the stop clip.
Laser-imprinted and conventional ink-printed marks obtained according to examples of the present utility model were taken and rubbed with iodophor or 75% sterile alcohol. The laser-imprinted indicia was not rubbed off and was easily rubbed off after exposure to iodophor or 75% sterile alcohol.
The contrast catheter indwelling needle according to the present utility model has a mark formed on a purple polymer by ultraviolet laser inscription, the mark being clear and noticeable and not easily rubbed off by a disinfectant.
The contrast catheter indwelling needle provided by the utility model does not use volatile agent, is nontoxic and harmless, and is friendly to medical staff and patients.
While the foregoing has described the technical content and features of the present utility model, it will be appreciated that those skilled in the art, upon attaining the teachings of the present utility model, may make variations and improvements to the concepts disclosed herein, which fall within the scope of the present utility model. The above description of embodiments is illustrative and not restrictive, and the scope of the utility model is defined by the claims.
Claims (10)
1. A contrast catheter indwelling needle, comprising:
A cannula for establishing an infusion path;
A sleeve bushing connected to the sleeve;
an extension conduit connected to the sleeve liner for transporting a liquid;
A flow stop clip for controlling the flow of liquid within the extension conduit; and
A conduit coupler connected to the extension conduit;
Wherein at least one of the sleeve liner, the extension conduit, the stop clip, and the conduit coupler is made of a purple polymer and is provided with a marking formed by ultraviolet laser inscription.
2. The contrast catheter indwelling needle according to claim 1, wherein said sleeve hub is made of polycarbonate or copolyester.
3. The contrast catheter indwelling needle according to claim 1, wherein said extension catheter is made of polyurethane.
4. The contrast catheter indwelling needle according to claim 1, wherein said flow stop clip is made of polyoxymethylene.
5. The contrast catheter indwelling needle according to claim 1, wherein said catheter adapter is made of polycarbonate or copolyester.
6. The contrast catheter indwelling needle according to claim 1, wherein said sleeve hub, said flow stop clip and/or said catheter adapter are injection molded and said extension catheter is extrusion molded.
7. The contrast catheter indwelling needle according to claim 1, wherein the withstand pressure of said catheter indwelling needle is not less than 325PSI.
8. The contrast catheter indwelling needle according to any one of claims 1 to 7, wherein at least one of said sleeve hub, said extension catheter, said flow stop clip and said catheter adapter is provided with a planar region, said marker being formed on said planar region.
9. The catheter indwelling needle according to any one of claims 1 to 7, wherein said marker comprises a maximum pressure resistance value and/or a maximum injection flow rate value.
10. The catheter indwelling needle according to any one of claims 1 to 7, wherein the width of the line of the marker is 0.1mm to 1mm and the depth of the line of the marker is 0.01mm to 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321773551.2U CN220877432U (en) | 2023-07-07 | 2023-07-07 | Catheter indwelling needle for radiography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321773551.2U CN220877432U (en) | 2023-07-07 | 2023-07-07 | Catheter indwelling needle for radiography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220877432U true CN220877432U (en) | 2024-05-03 |
Family
ID=90838875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321773551.2U Active CN220877432U (en) | 2023-07-07 | 2023-07-07 | Catheter indwelling needle for radiography |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220877432U (en) |
-
2023
- 2023-07-07 CN CN202321773551.2U patent/CN220877432U/en active Active
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