CN210205000U - Cardiovascular medicine coating stent - Google Patents
Cardiovascular medicine coating stent Download PDFInfo
- Publication number
- CN210205000U CN210205000U CN201920534440.3U CN201920534440U CN210205000U CN 210205000 U CN210205000 U CN 210205000U CN 201920534440 U CN201920534440 U CN 201920534440U CN 210205000 U CN210205000 U CN 210205000U
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- tube
- drug
- high molecular
- molecular polymer
- degradable high
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Abstract
The utility model relates to a cardiovascular drug coating bracket, belonging to the technical field of medical apparatus and instruments, which comprises a sacculus tube, a joint, a sealing plug, an air duct and a guide wire; a sealing plug is fixedly arranged at the left end of the balloon tube, and a guide wire is fixedly connected to the left side of the sealing plug; the right end of the balloon tube is connected with the air duct through a joint, and the outer end of the air duct is connected with an external inflating device; it also comprises a drug-coated stent; the outer side of the sacculus tube is sleeved with a drug coating bracket, and the sacculus tube comprises a first straight tube, a second straight tube and a horn tube; the drug coating support comprises a bare support, a bioactive coating, a degradable high molecular polymer and a degradable high molecular polymer II, and can effectively prevent the drug coating from peeling off from the support, so that drug ingredients are more diversified, meanwhile, the efficiency of drug effect exertion is increased, and the practicability is stronger.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to cardiovascular medicine coating support.
Background
In order to deal with the problem that 30% of patients who receive cardiac vasodilation still face the problem of narrowing blood vessels within half a year, and the patients cannot recover normally after the vascular dilation, so that a lot of cells block the blood vessels, the medical field has invented a new method for inhibiting cell division, namely, a drug-coated stent, wherein a layer of drug is coated on the stent for expanding the blood vessels of the patients, and anti-growth hormone released by the drug can inhibit abnormal cell proliferation, so that the blood vessels cannot be blocked and narrowed; however, the drug-coated stent in the prior art is easy to peel off, has single drug component and slow drug effect, and needs to be improved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a simple structure, reasonable in design, convenient to use's cardiovascular medicine coating support can effectually prevent that the medicine coating from peeling off from the support for the drug composition is more diversified, simultaneously, has increased the efficiency of drug effect performance, and the practicality is stronger.
In order to achieve the above object, the utility model adopts the following technical scheme: it comprises a balloon tube, a joint, a sealing plug, an air duct and a guide wire; a sealing plug is fixedly arranged at the left end of the balloon tube, and a guide wire is fixedly connected to the left side of the sealing plug; the right end of the balloon tube is connected with the air duct through a joint, and the outer end of the air duct is connected with an external inflating device; it also comprises a drug-coated stent; the outer side of the sacculus tube is sleeved with a drug coating bracket;
the sacculus tube comprises a first straight tube, a second straight tube and a horn tube; the right side of the first straight pipe is fixedly connected with a horn pipe, and the right side of the horn pipe is fixedly connected with a second straight pipe; a sealing plug is fixedly arranged at the left end of the first straight pipe, and a joint is fixedly arranged at the right end of the second straight pipe; the diameter of the right end of the horn pipe is larger than that of the left end.
The drug coating stent comprises a bare stent, a bioactive coating, a first degradable high molecular polymer and a second degradable high molecular polymer; the fixed bioactive coating that is provided with in the outside of naked support, the fixed degradable high-molecular polymer that is provided with in the outside of bioactive coating, the fixed degradable high-molecular polymer that is provided with in the outside of degradable high-molecular polymer No. two.
Further, the bare stent is in a wavy net tubular arrangement.
Furthermore, a plurality of grooves are fixedly arranged on the outer side wall of the bare support, and the bioactive coating is embedded in the grooves.
Furthermore, the thickness of the degradable high molecular polymer I and the degradable high molecular polymer II is 10-100 μm.
Furthermore, the left end and the right end of the drug coating bracket are both fixedly provided with a support ring.
Furthermore, a rough layer is fixedly arranged on the outer side wall of the supporting ring.
After the structure is adopted, the utility model discloses beneficial effect does: a cardiovascular medicine coating support, can effectually prevent that the medicine coating from peeling off from the support for the drug composition is diversified more, simultaneously, has increased the efficiency of drug effect performance, and the practicality is stronger, the utility model has the advantages of simple structure, it is reasonable to set up, the cost of manufacture is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view of a-a portion in fig. 1.
Fig. 3 is a layer diagram of the drug-coated stent of the present invention.
Fig. 4 is a schematic structural diagram of the balloon tube of the present invention.
Fig. 5 is a cross-sectional view of the hinge of the present invention.
Description of reference numerals:
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 5, the technical solution adopted by the present embodiment is: the balloon catheter comprises a balloon tube 1, a connector 4, a sealing plug 2, an air duct 9 and a guide wire 3; a sealing plug 2 is fixedly arranged at the left end of the balloon tube 1, a guide wire 3 is fixedly connected to the left side of the sealing plug 2, and the guide wire 3 can help the balloon tube 1 to drive the drug coating stent 5 to enter the diseased blood vessel; the right end of the balloon tube 1 is connected with an air duct 9 through a joint 4, and the outer end of the air duct 9 is connected with an external inflating device; it also comprises a drug-coated stent 5; the outer side of the sacculus tube 1 is sleeved with a drug coating bracket 5;
the sacculus tube 1 comprises a first straight tube 1-1, a second straight tube 1-2 and a trumpet tube 1-3; the right side of the first straight pipe 1-1 is fixedly connected with a horn pipe 1-3, and the right side of the horn pipe 1-3 is fixedly connected with a second straight pipe 1-2; a sealing plug 2 is fixedly arranged at the left end of the first straight pipe 1-1, and a joint 4 is fixedly arranged at the right end of the second straight pipe 1-2; the diameter of the right end of the horn tube 1-3 is larger than that of the left end.
The drug coating stent 5 comprises a bare stent 5-1 (the bare stent 5-1 is formed by cutting a nickel-titanium alloy precision pipe by laser), a bioactive coating 5-2, a first degradable high polymer 5-3 (the interior of the first degradable high polymer contains anti-restenosis drugs including antithrombotic and anti-cell proliferation agents) and a second degradable high polymer 5-4 (the interior of the second degradable high polymer contains anti-restenosis drugs and anti-inflammatory drugs); the outer side of the bare stent 5-1 is fixedly provided with a bioactive coating 5-2, the outer side of the bioactive coating 5-2 is fixedly provided with a first degradable high molecular polymer 5-3, and the outer side of the first degradable high molecular polymer 5-3 is fixedly provided with a second degradable high molecular polymer 5-4.
Furthermore, the naked support 5-1 is in a wavy net tubular shape, and is convenient to fold.
Furthermore, a plurality of grooves 6 are fixedly arranged on the outer side wall of the bare stent 5-1, and the bioactive coating 5-2 is embedded in the grooves 6, so that the peeling of the drug on the outer side wall of the bare stent 5-1 can be effectively prevented.
Furthermore, the thickness of the first degradable high molecular polymer 5-3 and the second degradable high molecular polymer 5-4 is 10-100 μm, so that the medicament can be better dispersed, and meanwhile, the medicament cannot be retained in the blood vessel for too long time.
Furthermore, the left end and the right end of the drug-coated stent 5 are both fixedly provided with the support rings 7, so that the drug-coated stent 5 can be further tightened on the inner side wall of the blood vessel.
Further, the lateral wall of the support ring 7 is fixedly provided with a rough layer 8, the adopted medicament is corroded and then the rough layer 8 formed by polishing in the later period is adopted, and the medicament coating support 5 can be prevented from generating displacement during working.
The working principle of the specific embodiment is as follows: the sacculus tube 1 and the medicine coating bracket 5 sleeved outside the sacculus tube are conveyed to a diseased region through the matching guide effect of an external conduit and a guide wire 3, airflow is conveyed to the inside of the sacculus tube 1 through an air duct 9 through an external inflating device, the medicine coating bracket 5 is gradually expanded and tightly attached to the inner wall of a diseased blood vessel along with the gradual increase of the pressure inside the sacculus tube 1, the inside of the sacculus tube 1 is decompressed after the expansion is finished, the sacculus tube 1 is taken out, after the medicine coating bracket 5 is expanded, the diameter of the inlet end of the medicine coating bracket 5 is larger than that of the outlet end because the material of the medicine coating bracket 5 is radially not compressed, and the blood can generate instant acceleration when flowing through the inside of the medicine coating bracket 5, so that the efficiency of medicine effect exertion is improved; no. 5-3 degradable high molecular polymer and No. 5-4 degradable high molecular polymer can effectively prevent the formation of restenosis, thrombus and inflammation.
After adopting above-mentioned structure, this embodiment beneficial effect does:
1. the bioactive coating 5-2, the first degradable high molecular polymer 5-3 and the second degradable high molecular polymer 5-4 are wrapped on the outer side of the bare stent 5-1, so that the drug coating can be effectively prevented from peeling off from the stent, and the drug components are more diversified;
2. the medicine coating support 5 adopts a mode that the diameter of the inlet end is larger than that of the outlet end, so that the instantaneous flow rate of blood at a certain stage is increased, the efficiency of drug effect exertion is increased, and the practicability is stronger.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A cardiovascular drug-coated stent, characterized in that: the balloon catheter comprises a balloon tube (1), a joint (4), a sealing plug (2), an air duct (9) and a guide wire (3); a sealing plug (2) is fixedly arranged at the left end of the balloon tube (1), and a guide wire (3) is fixedly connected to the left side of the sealing plug (2); the right end of the balloon tube (1) is connected with an air duct (9) through a joint (4), and the outer end of the air duct (9) is connected with an external inflating device; it also comprises a drug-coated stent (5); the outer side of the sacculus tube (1) is sleeved with a drug coating bracket (5);
the sacculus tube (1) comprises a first straight tube (1-1), a second straight tube (1-2) and a trumpet tube (1-3); the right side of the first straight pipe (1-1) is fixedly connected with a horn pipe (1-3), and the right side of the horn pipe (1-3) is fixedly connected with a second straight pipe (1-2); a sealing plug (2) is fixedly arranged at the left end of the first straight pipe (1-1), and a joint (4) is fixedly arranged at the right end of the second straight pipe (1-2); the diameter of the right end of the horn pipe (1-3) is larger than that of the left end;
the drug coating stent (5) comprises a bare stent (5-1), a bioactive coating (5-2), a first degradable high molecular polymer (5-3) and a second degradable high molecular polymer (5-4); the outer side of the bare stent (5-1) is fixedly provided with a bioactive coating (5-2), the outer side of the bioactive coating (5-2) is fixedly provided with a first degradable high molecular polymer (5-3), and the outer side of the first degradable high molecular polymer (5-3) is fixedly provided with a second degradable high molecular polymer (5-4).
2. The cardiovascular drug coated stent of claim 1, wherein: the naked stent (5-1) is in a wave-shaped net tubular arrangement.
3. The cardiovascular drug coated stent of claim 1, wherein: the outer side wall of the bare support (5-1) is fixedly provided with a plurality of grooves (6), and the bioactive coating (5-2) is embedded in the grooves (6).
4. The cardiovascular drug coated stent of claim 1, wherein: the thickness of the first degradable high molecular polymer (5-3) and the second degradable high molecular polymer (5-4) is 10-100 μm.
5. The cardiovascular drug coated stent of claim 1, wherein: the left end and the right end of the drug coating bracket (5) are both fixedly provided with a support ring (7).
6. The cardiovascular drug coated stent of claim 5, wherein: a rough layer (8) is fixedly arranged on the outer side wall of the supporting ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534440.3U CN210205000U (en) | 2019-04-11 | 2019-04-11 | Cardiovascular medicine coating stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534440.3U CN210205000U (en) | 2019-04-11 | 2019-04-11 | Cardiovascular medicine coating stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210205000U true CN210205000U (en) | 2020-03-31 |
Family
ID=69923425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920534440.3U Expired - Fee Related CN210205000U (en) | 2019-04-11 | 2019-04-11 | Cardiovascular medicine coating stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210205000U (en) |
-
2019
- 2019-04-11 CN CN201920534440.3U patent/CN210205000U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 Termination date: 20210411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |