CN207545266U - A kind of surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating - Google Patents
A kind of surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating Download PDFInfo
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- CN207545266U CN207545266U CN201720275864.3U CN201720275864U CN207545266U CN 207545266 U CN207545266 U CN 207545266U CN 201720275864 U CN201720275864 U CN 201720275864U CN 207545266 U CN207545266 U CN 207545266U
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Abstract
The utility model provides the hemodialysis catheter that a kind of surface is covered with super-hydrophobic oleophobic composite Nano coating, including all and contacting blood merging object surface, such as vessel catheter surfaces externally and internally, replacement vessels (artificial blood vessel) surfaces externally and internally, intravascular stent surfaces externally and internally are covered with the nano coating of super-hydrophobic oleophobic coating.The beneficial effects of the utility model are; there is the protective film that one layer of fluorine-containing nanometer polymer is formed on all and contacting blood merging object surface; and fluorine-containing nanometer polymer has good super-hydrophobic oleophobic property; blood and merging object surface are separated by by the film; it prevents blood directly and merging object contacts; prevent merging object from inspiring the Coagulation test in blood, anti-hemostasis-coagulation；It is also prevented from bacterium, fungi simultaneously in the field planting of merging object surface, prevents bacterium, fungal infection；The merging object service life is extended simultaneously, alleviates patient suffering, hospital stays, saves hospitalization cost.
Description
Technical field
The utility model is related to the field of medical instrument technology, specifically, it is compound to be that a kind of surface is covered with super-hydrophobic oleophobic
The hemodialysis catheter of nano coating.
Background technology
If the blood vessel of Clinical practice enters the various blood vessel merging conduits of owner, seal wire, replacement vessels and various blood at present
Pipe holder, they are all made of hydrophilic and (or) lipophilic material.Blood vessel is placed in conduit, including various arterio-venous catheters, blood
Liquid dialysis catheter, ECMO merging arterio-venous catheters etc.；Replacement vessels include various artificial blood vessels；Intravascular stent includes merging blood
The various stents of pipe, such as cardiac coronary-artery.Above-mentioned blood vessel merging object is there are two shortcoming, first, the initiation of merging object is solidifying after merging
Blood system blood coagulation makes merging object because blood coagulation leads to embolism, since merging object obstruction is different, thus clinically needs to be used for a long time anti-
Blood-clotting agent, this not only adds the risk of patient's bleeding, while there is a continuing need for monitoring coagulation functions, increase patient suffering and Fei
With；Second is that after merging overlong time, infection is easy to cause, for germ easily in the field planting of merging object surface, growth leads to body sense
Dye occurs merging object related infection, is obviously prolonged patient's course of disease, hospitalization cost significantly increases.Double super thin (hydrophobic oleophobics)
Blood vessel is placed in object, because merging object surface is super-hydrophobic oleophobic, blood has been isolated and has been placed in being in direct contact for object surface, anti-hemostasis-coagulation
Reaction and germ definite value, make merging object both not cause Coagulation test, will not make the field planting such as bacterium, fungi on merging object surface
Cause to infect.Super-amphiphobic blood vessel merging object can mitigate patient suffering and hospital stays, save hospitalization cost.
Haemodialysis is that excessive moisture or solute etc. are cleared out of to a kind of internal technology.Haemodialysis, which needs to establish, to be had
The venous channel of effect is drawn the blood of patient's body from arterial end, is input to again by vein end after purging in vitro is handled
Patient's body.The point that dialysis catheter enters the tube body of human body is the flexible material of taper, and tubular body, which is divided to, is independent two
Chamber is provided with side port on tube wall respectively connecing subapical position, and two side ports export and import respectively blood, export the side of blood
Mouth is ostium venosum cordis, and the side port for importing blood is ostium arteriosum.The hemodialysis catheter compression strength clinically used at present is small, directly
There are certain difficulty when being inserted into blood vessel, and due to the presence of negative pressure, the artery end opening of hemodialysis catheter often attaches
The vascular wall the phenomenon that, not smooth situation is flowed out from patient's body so as to cause there is blood, influences being normally carried out for treatment, sternly
In the case of weight, there may be blood inside catheters stop flowing and form thrombus, damage filter, lead to treatment failure, not only increase
The pain of patient is added or even has been also possible to will appear the serious consequence for threatening patient vitals.
Invention content
First purpose of the utility model is for deficiency of the prior art, provides a kind of surface and is covered with super-hydrophobic dredge
The blood vessel merging object of oily composite Nano coating.
Second purpose of the utility model is for deficiency of the prior art, provides a kind of surface and is covered with super-hydrophobic dredge
The hemodialysis catheter of oily composite Nano coating.
To achieve the above object, the technical scheme adopted by the utility model is that：
A kind of surface is covered with the blood vessel merging object of super-hydrophobic oleophobic composite Nano coating, and the blood vessel merging object includes blood vessel
Conduit, blood vessel merging seal wire, replacement vessels and intravascular stent are placed in, the blood vessel merging conduit includes arterio-venous catheter, blood
Liquid dialysis catheter and ECMO merging arterio-venous catheters, the replacement vessels include artificial blood vessel, and the intravascular stent includes the heart
Dirty coronary artery bracket, the surface of the blood vessel merging object are covered with the nano coating of super-hydrophobic oleophobic coating, and the surface includes interior table
Face and outer surface, the nano coating include oleophobic layer and hydrophobic layer, and the thickness of oleophobic layer is more than the thickness of hydrophobic layer, described to receive
Rice coating is fluorine-containing nanometer polymer, and fluorine-containing nanometer polymer is fluorocarbon nanometer polymer, silicon fluoride nanometer polymer or fluorine molybdenum
Nanometer polymer, the thickness of the nano coating is 50-5000nm.
To realize above-mentioned second purpose, the technical scheme adopted by the utility model is that：
A kind of surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating, including tube body (4), connecting seat
(5), fixed seat (6), extension tube (7), vessel clamp (8) and female Luer (9), the tube body (4) is interior to be included extracting the pumping of blood
It liquid pipe (10) and dialysis is finished into blood backs within endovascular woven hose (11), which is characterized in that the tube body
(4) surface is covered with the nano coating of super-hydrophobic oleophobic coating, and the nano coating includes oleophobic layer and hydrophobic layer, oleophobic layer
Thickness is more than the thickness of hydrophobic layer, and the nano coating is fluorine-containing nanometer polymer；The section exterior contour of the tube body (4) by
Three circular arcs (12) form according to 120 degree of rotational symmetry of rotation angle, and the coupling part between adjacent two circular arcs (12) uses
Round edge (13) processing；There are three the liquid suction pipe (10) is common, respectively in three circular arcs (12), the woven hose (11) is located at
The center of three liquid suction pipes (10)；The side wall of the liquid suction pipe (10) is equipped with liquid pumping hole (14), liquid pumping hole (14) and tube body (4)
Outside wall surface connectivity part is set close to round edge (13), and the end of the woven hose (11) is equipped with infusion port (15)；When tube body (4) is inserted into
During blood vessel, adjacent two circular arcs (12) and its between round edge (13) groove with cavity is formed between vascular wall
(16)。
Further, be bifurcation structure inside the connecting seat (5), connecting seat (5) by tube body (4) liquid suction pipe (10),
Woven hose (11) connects respectively with two extension tubes (7), and fixed seat (6) is fixed on connecting seat (5).
Further, the liquid pumping hole (14) is the through-hole that one end diameter is big, other end diameter is small, the small one end of diameter and pumping
Liquid pipe (10) connects.
Further, the extension tube (7) is connected by connecting seat (5) with tube body (4), and vessel clamp (8) is arranged on extension tube
(7) on.
Further, the end of the extension tube (7) is equipped with the female Luer of standard.
The utility model advantage is：
1st, the utility model sets super-amphiphobic (hydrophobic oleophobic) composite Nano coating on blood vessel merging object surface, because being placed in object
Surface is super-hydrophobic oleophobic, and blood has been isolated and has been placed in being in direct contact for object surface, Coagulation test and germ is prevented to be colonized；Make to put
Coagulation test will not both be caused by entering object, and the field planting such as bacterium, fungi will not be made to cause to infect on merging object surface.This was both alleviated
Patient suffering, hospital stays, also save hospitalization cost.
2nd, the hemodialysis catheter of the utility model, the design of tube body special cross-section can prevent from leading to blood because of liquid pumping hole sucking
Tube wall, which is attached on liquid pumping hole, blocks liquid pumping hole, ensures normal haemodialysis.
3rd, the hemodialysis catheter of the utility model, compared to the structure of prior art circle straight tube, circular arc and round edge
Design can dramatically increase resistance to compression and the bending strength of tube body, be inserted into the blood vessel of patient so as to more convenient；Groove simultaneously
Tube body and the contact area with blood vessel can be reduced, the friction of tube body and blood vessel, mitigates the pain of intubation, prevent from inserting when reducing intubation
Due to intubation defeat caused by tube body not resistance to compression during pipe, be conducive to the successful progress of intubation.
4th, the hemodialysis catheter of the utility model, liquid pumping hole are the through-hole that one end diameter is big, other end diameter is small, diameter
Small one end is connected with liquid suction pipe, and the big one end of diameter is connected with groove, which makes endovascular blood easily from larger straight
One end of diameter enters liquid suction pipe by liquid pumping hole, and the blood in liquid suction pipe can not enter blood vessel from the liquid pumping hole end of small diameter
In, while the blood of certain volume can be put aside in groove, ensure that blood is smoothly flowed out from patient's body, prevent blood inside catheters
Stop flowing, the generation of anti-tampon keeps being smoothed out for haemodialysis, and use is more safe and effective.
Description of the drawings
Partial schematic diagram of the attached drawing 1 for the merging object nano surface coating of the utility model.
Attached drawing 2 is placed in the schematic diagram of object nano surface coating in the blood vessel for the utility model.
Attached drawing 3 be the water contact angle of coating surface and hexadecane contact angle schematic diagram, the water contact angle of coating surface and ten
Six alkane contact angles are both greater than 160 °, and roll angle is both less than 3 °, and coating has super-hydrophobicity oleophobic property.
Attached drawing 4 is hemodialysis catheter structure diagram in the utility model.
Attached drawing 5 is A-A diagrammatic cross-sections in Fig. 4.
Attached drawing 6 is the operation principle schematic diagram of hemodialysis catheter in the utility model.
Specific embodiment
The following further describes the utility model with specific embodiments.It should be understood that these embodiments are merely to illustrate
The utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, having read in the utility model record
After appearance, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this
Apply for the appended claims limited range.
Reference numeral and component part involved in attached drawing is as follows：
1. 2. hydrophobic layer of oleophobic layer, 3. blood vessel is placed in object
4. 5. connecting seat of tube body, 6. fixed seat
7. 8. vessel clamp of extension tube, 9. female Luer
10. 11. woven hose of liquid suction pipe, 12. circular arc
13. 14. liquid pumping hole of round edge, 15. infusion port
16. groove
1 surface of embodiment is covered with the deep vein catheter of super-hydrophobic oleophobic composite Nano coating
Refer to Fig. 1-Fig. 3, partial schematic diagram of the attached drawing 1 for the merging object nano surface coating of the utility model, attached drawing 2
The schematic diagram of merging object nano surface coating in the blood vessel for the utility model, attached drawing 3 for coating surface water contact angle and
Hexadecane contact angle schematic diagram, the water contact angle and hexadecane contact angle of coating surface are both greater than 160 °, and roll angle is both less than 3 °,
Coating has super-hydrophobicity oleophobic property.
The utility model includes 3 surface of blood vessel merging object, such as deep vein catheter surfaces externally and internally；The Deep venou of non-coating is led
Pipe is placed in the reative cell of fluorocarbon polymer plasma deposition coating equipment, using fluorocarbons as working gas, deep quiet
Arteries and veins conduit surfaces externally and internally carries out polymerisation, and the nano coating (Fig. 1-Fig. 3) being made of fluorocarbon polymer is formed in surfaces externally and internally,
The nano coating thickness is 100nm.The nano coating includes oleophobic layer 1 and hydrophobic layer 2, and the thickness of the oleophobic layer 2 is big
In the thickness of hydrophobic layer 1.
2 surface of embodiment is covered with the artificial blood vessel of super-hydrophobic oleophobic composite Nano coating
The utility model includes 3 surface of blood vessel merging object, such as artificial blood vessel's surfaces externally and internally；The artificial blood vessel of non-coating is put
It puts in the reative cell of fluorocarbon polymer plasma deposition coating equipment, using fluorocarbons as working gas, in artificial blood vessel
Surfaces externally and internally carries out polymerisation, and in the nano coating that surfaces externally and internally formation is made of fluorocarbon polymer, the nano coating is thick
It spends for 400nm.The nano coating includes oleophobic layer 1 and hydrophobic layer 2, and the thickness of the oleophobic layer 2 is more than the thickness of hydrophobic layer 1
Degree.
3 surface of embodiment is covered with the coronary artery stent of super-hydrophobic oleophobic composite Nano coating
The utility model includes 3 surface of blood vessel merging object, such as coronary artery stent surfaces externally and internally；By the blood of non-coating
Pipe holder is placed in the reative cell of fluorine molybdenum polymer plasma deposition coating equipment, using fluorocarbons as working gas,
Intravascular stent surfaces externally and internally carries out polymerisation, described to receive in the nano coating that surfaces externally and internally formation is made of fluorocarbon polymer
Rice coating layer thickness is 800nm.The nano coating includes oleophobic layer 1 and hydrophobic layer 2, and the thickness of the oleophobic layer 2 is more than hydrophobic
The thickness of layer 1.
4 surface of embodiment is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating
The utility model includes 3 surface of blood vessel merging object, such as hemodialysis catheter surfaces externally and internally；The blood of non-coating is saturating
Analysis conduit is placed in the reative cell of fluorine molybdenum polymer plasma deposition coating equipment, using fluorocarbons as working gas,
Conduit surfaces externally and internally carries out polymerisation, and in the nano coating that surfaces externally and internally formation is made of fluorocarbon polymer, the nanometer applies
Layer thickness is 800nm.The nano coating includes oleophobic layer 1 and hydrophobic layer 2, and the thickness of the oleophobic layer 2 is more than hydrophobic layer 1
Thickness.
Specifically, as Figure 4-Figure 6, Fig. 4 is that haemodialysis is led in the utility model to the structure of the hemodialysis catheter
Pipe structure diagram, Fig. 5 are A-A diagrammatic cross-sections in Fig. 4, and Fig. 6 is the operation principle of hemodialysis catheter in the utility model
Schematic diagram.A kind of surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating, including tube body 4, connecting seat 5, consolidates
Reservation 6, extension tube 7, vessel clamp 8 and female Luer 9, the interior liquid suction pipe 10 included for extracting blood of the tube body 4 and general
Dialysis finishes blood and backs within endovascular woven hose 11, and the surfaces externally and internally of the tube body 4 is covered with super-hydrophobic oleophobic coating
Nano coating, the nano coating includes oleophobic layer and hydrophobic layer, and the thickness of oleophobic layer is more than the thickness of hydrophobic layer, described to receive
Rice coating is fluorine-containing nanometer polymer.The section exterior contour of the tube body 4 is by three circular arcs 12 according to 120 degree of rotations of rotation angle
Turn symmetrical to form, the coupling part between adjacent two circular arcs 12 is handled using round edge 13；There are three the liquid suction pipe 10 is common,
It is located in three circular arcs 12 respectively, liquid suction pipe 10 is set respectively close to circular arc 12.The woven hose 11 is located at three liquid suction pipes 10
Center；The side wall of liquid suction pipe 10 is equipped with several liquid pumping holes 14, and the liquid pumping hole 14 is one end diameter is big, other end diameter
Small through-hole, the small one end of diameter are connected with liquid suction pipe 10, and the liquid pumping hole 14 is with 4 outside wall surface connectivity part of tube body close to round edge 13
Setting, when tube body 4 is inserted into blood vessel, adjacent two circular arcs 12 and its between round edge 13 and vascular wall between formed and carry
The groove 16 of cavity, liquid pumping hole 14 connect groove 16 with liquid suction pipe 10；The end of the woven hose 11 is equipped with infusion port 15.
5 inside of connecting seat is bifurcation structure, and the bifurcation structure includes three drawing liquid chambers being connect with liquid suction pipe 10, Yi Jiyu
The transfusing chamber that woven hose 11 connects, the other end of the transfusing chamber are connect with extension tube 7, and three drawing liquid chambers are combined into one in end
A cavity is simultaneously connect with another extension tube 7.Connecting seat 5 is outer with two respectively by liquid suction pipe 10, the woven hose 11 in tube body 4
Prolong pipe 7 to connect, fixed seat 6 is fixed on connecting seat 5, and the vessel clamp 8 is arranged in extension tube 7, is set in the end of extension tube 7
There is the female Luer of standard.
It should be noted that in the present embodiment, the surfaces externally and internally of the tube body is covered with the nanometer painting of super-hydrophobic oleophobic coating
Layer, the nano coating include oleophobic layer and hydrophobic layer, and the thickness of oleophobic layer is more than the thickness of hydrophobic layer, and the nano coating is
Fluorine-containing nanometer polymer.Fluorine-containing nanometer polymer have good super-hydrophobic oleophobic property, the nano coating be completely covered tube body with
The surface of blood and merging object is separated by by the surface of contacting blood, formation protective film, the film, it is therefore prevented that blood is direct and is placed in object
Contact prevents merging object from inspiring the Coagulation test in blood, anti-hemostasis-coagulation, while is also prevented from bacterium, fungi on merging object surface
Definite value prevents bacterium, fungal infection.The setting of nano coating extends the service life of merging object, mitigates patient suffering, reduces
Institute's time saves medical expense.
In the present embodiment, the section exterior contour of the tube body 4 is by three circular arcs 12 according to 120 degree of rotational symmetry of rotation angle
It forming, the coupling part between adjacent two circular arcs 12 is handled using round edge 13, and liquid suction pipe 10 is set respectively close to circular arc 12,
Woven hose 11 is located at the center of three liquid suction pipes 10, and the liquid pumping hole 14 is set with 4 outside wall surface connectivity part of tube body close to round edge 13,
When tube body 4 is inserted into blood vessel, adjacent two circular arcs 12 and its between round edge 13 and vascular wall between formed with cavity
Groove 16, liquid pumping hole 14 connects groove 16 with liquid suction pipe 10.First, in haemodialysis, due to the entrance of liquid pumping hole 14
End is arranged on the inside of groove 16, which can prevent liquid pumping hole 14 to be in contact with vascular wall, prevent from sucking because of liquid pumping hole 14
Vascular wall is caused to be attached to the generation for blocking liquid pumping hole 14 on liquid pumping hole 14, ensures normal haemodialysis.Secondly, compared to existing
Technology justifies the structure of straight tube, in the present embodiment the design of circular arc 12 and round edge 13 can dramatically increase tube body 4 resistance to compression and bending resistance it is strong
Degree is inserted into so as to more convenient in the blood vessel of patient；Simultaneously groove 16 can reduce tube body with 4 and blood vessel contact area,
The friction of tube body and blood vessel when reducing intubation mitigates the pain of intubation, prevents during intubation due to being intubated caused by tube body not resistance to compression
Failure is conducive to the successful progress of intubation.
In the present embodiment, the liquid pumping hole 14 is the through-hole that one end diameter is big, other end diameter is small, the small one end of diameter with
Liquid suction pipe 10 connects, and the big one end of diameter is connected with groove 16, which makes endovascular blood easily from larger-diameter one
End enters liquid suction pipe 10 by liquid pumping hole 14, and the blood in liquid suction pipe 10 can not enter blood from 14 end of liquid pumping hole of small diameter
Guan Zhong, while the blood of certain volume can be put aside in groove 14, ensure that blood is smoothly flowed out from patient's body, prevent in conduit
Blood stops flowing, and the generation of anti-tampon keeps being smoothed out for haemodialysis, and use is more safe and effective.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
Art personnel under the premise of the utility model principle is not departed from, can also make several improvement and supplement, these are improved and supplement
Also it should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating, including tube body (4), connecting seat (5),
Fixed seat (6), extension tube (7), vessel clamp (8) and female Luer (9), the interior liquid suction pipe for including extracting blood of the tube body (4)
(10) and dialysis is finished into blood and backs within endovascular woven hose (11), which is characterized in that the tube body (4)
Surface is covered with the nano coating of super-hydrophobic oleophobic coating, and the nano coating includes oleophobic layer and hydrophobic layer, the thickness of oleophobic layer
More than the thickness of hydrophobic layer, the nano coating is fluorine-containing nanometer polymer；The section exterior contour of the tube body (4) is by three
Circular arc (12) is formed according to 120 degree of rotational symmetry of rotation angle, and the coupling part between adjacent two circular arcs (12) uses round edge
(13) it handles；There are three the liquid suction pipe (10) is common, respectively in three circular arcs (12), the woven hose (11) is positioned at three
The center of liquid suction pipe (10)；The side wall of the liquid suction pipe (10) is equipped with liquid pumping hole (14), liquid pumping hole (14) and tube body (4) outer wall
Face connectivity part is set close to round edge (13), and the end of the woven hose (11) is equipped with infusion port (15)；When tube body (4) is inserted into blood vessel
When, adjacent two circular arcs (12) and its between round edge (13) groove (16) with cavity is formed between vascular wall.
2. surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating according to claim 1, feature exists
In the internal connecting seat (5) is bifurcation structure, and connecting seat (5) divides liquid suction pipe (10), the woven hose (11) in tube body (4)
It is not connected with two extension tubes (7), fixed seat (6) is fixed on connecting seat (5).
3. surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating according to claim 1, feature exists
In the liquid pumping hole (14) is the through-hole that one end diameter is big, other end diameter is small, and the small one end of diameter connects with liquid suction pipe (10)
It is logical.
4. surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating according to claim 1, feature exists
In the extension tube (7) is connected by connecting seat (5) with tube body (4), and vessel clamp (8) is arranged in extension tube (7).
5. surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating according to claim 1, feature exists
In the end of the extension tube (7) is equipped with the female Luer of standard.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275864.3U CN207545266U (en) | 2017-03-21 | 2017-03-21 | A kind of surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275864.3U CN207545266U (en) | 2017-03-21 | 2017-03-21 | A kind of surface is covered with the hemodialysis catheter of super-hydrophobic oleophobic composite Nano coating |
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| CN207545266U true CN207545266U (en) | 2018-06-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201244A (en) * | 2019-07-17 | 2019-09-06 | 山东百多安医疗器械有限公司 | A kind of low viscous functional catheter of lyophoby |
| CN114984404A (en) * | 2022-06-10 | 2022-09-02 | 惠州市顺美医疗科技有限公司 | Surface forming guide catheter and preparation method thereof |
| CN115137445A (en) * | 2022-06-22 | 2022-10-04 | 上海百心安生物技术股份有限公司 | Balloon pulse catheter with hydrophobic film |
-
2017
- 2017-03-21 CN CN201720275864.3U patent/CN207545266U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201244A (en) * | 2019-07-17 | 2019-09-06 | 山东百多安医疗器械有限公司 | A kind of low viscous functional catheter of lyophoby |
| CN110201244B (en) * | 2019-07-17 | 2022-09-20 | 山东百多安医疗器械股份有限公司 | Lyophobic low functional catheter that glues |
| CN114984404A (en) * | 2022-06-10 | 2022-09-02 | 惠州市顺美医疗科技有限公司 | Surface forming guide catheter and preparation method thereof |
| CN114984404B (en) * | 2022-06-10 | 2023-07-25 | 惠州市顺美医疗科技有限公司 | Surface-molded guide catheter and preparation method thereof |
| CN115137445A (en) * | 2022-06-22 | 2022-10-04 | 上海百心安生物技术股份有限公司 | Balloon pulse catheter with hydrophobic film |
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