CN221266896U - Drug eluting arterial stent molding expander - Google Patents
Drug eluting arterial stent molding expander Download PDFInfo
- Publication number
- CN221266896U CN221266896U CN202322299921.XU CN202322299921U CN221266896U CN 221266896 U CN221266896 U CN 221266896U CN 202322299921 U CN202322299921 U CN 202322299921U CN 221266896 U CN221266896 U CN 221266896U
- Authority
- CN
- China
- Prior art keywords
- connecting pipe
- support
- gasbag
- air bag
- expansion
- 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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- 238000000465 moulding Methods 0.000 title claims abstract description 14
- 239000003814 drug Substances 0.000 title claims description 25
- 229940079593 drug Drugs 0.000 title claims description 14
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 29
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000017531 blood circulation Effects 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 description 18
- 210000004712 air sac Anatomy 0.000 description 6
- 230000003902 lesion Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 208000037803 restenosis Diseases 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 230000025033 vasoconstriction Effects 0.000 description 1
Abstract
The utility model relates to a drug-eluting arterial stent molding expander, which comprises a connecting pipe, wherein the head of the connecting pipe is connected with a first supporting air bag, a second supporting air bag is arranged at the position, close to the head, of the connecting pipe, and an expanding air bag for expanding a metal stent is arranged between the first supporting air bag and the second supporting air bag.
Description
Technical Field
The application relates to the technical field of medical appliances, in particular to a drug-eluting arterial stent molding expander.
Background
For narrowing of blood vessels, a metal stent is generally arranged in the blood vessels, and polymers on the surface of the metal stent carry medicines, so that after the stent is arranged in a lesion part in the blood vessels, the medicines can be controllably released to the tissue of the heart vessel wall to exert biological effects, thereby preventing restenosis in the stent.
The patent document with the bulletin number of CN215019794U discloses a cardiovascular dilator, when in use, an air sac with a bracket sleeved on the outer side reaches a part needing to be dilated, a first branch pipe is connected with an external liquid supply device, a second branch pipe is connected with the external liquid supply device, firstly, the air is supplied to the air sac through the air supply device, the air sac is propped up, the bracket on the outer side of the air sac is also propped up completely, a groove can form a blood channel for the blood to flow, at the moment, liquid medicine is introduced into the air sac through the liquid supply device, the liquid medicine is discharged through a liquid outlet, impurities accumulated in a blood vessel are cleaned through the liquid medicine, then the air sac is contracted, the bracket is left in the blood vessel, and the dilator is taken out.
In view of the above-mentioned prior art, the inventor believes that the side surface of the balloon is tightly attached to the vessel wall after inflation and is blocked at the diseased region, so that the liquid medicine discharged from the liquid outlet hole cannot be well contacted with the inner wall of the vessel, and thus the impurities accumulated at the diseased region of the vessel are difficult to be cleaned, and therefore, a drug eluting arterial stent molding dilator is provided by those skilled in the art to solve the problems set forth in the background art.
Disclosure of utility model
In order to solve the problems in the background art, the application provides a drug-eluting arterial stent molding dilator.
The application relates to a drug eluting arterial stent molding expander, which comprises a connecting pipe, wherein the head part of the connecting pipe is connected with a first supporting air bag, a second supporting air bag is arranged at the position, close to the head part, of the connecting pipe, an expanding air bag for expanding a metal stent is arranged between the first supporting air bag and the second supporting air bag, the connecting pipe is provided with a supporting air bag inflating channel connected with the first supporting air bag and the second supporting air bag, the connecting pipe is provided with an expanding air bag inflating channel connected with the expanding air bag, the expanding air bags are distributed on the side surface of the connecting pipe at equal intervals, and liquid outlet holes are arranged between the adjacent expanding air bags in a penetrating mode on the side surface of the connecting pipe.
Preferably, the expansion air bag is an elastic plastic film structure penetrating and fixed on the side surface of the connecting pipe 1.
Preferably, the number of the expansion air bags is at least 4, and the liquid outlet holes are linearly arranged in the length direction of the connecting pipe.
Preferably, grooves for blood circulation are formed in the side surfaces of the first support air bag and the second support air bag in a penetrating mode.
In summary, the utility model has the following beneficial technical effects: according to the drug-eluting arterial stent molding expander, when the stent is used, the first supporting air bag and the second supporting air bag are expanded and attached to the wall of a blood vessel, the metal stent is expanded by expanding the expanding air bag, then the expanding air bag is contracted, the liquid medicine is discharged through the liquid outlet on the side face of the connecting pipe by passing through the liquid medicine in the connecting pipe, and a larger gap is reserved between the side face of the connecting pipe and the wall of the blood vessel due to contraction of the expanding air bag, so that the discharged liquid medicine is better contacted with the lesion part of the wall of the blood vessel, and the impurity cleaning effect on the lesion part of the blood vessel is better.
Drawings
FIG. 1 is a schematic view of the overall structure of the present application;
FIG. 2 is a schematic cross-sectional view of the present application;
fig. 3 is a schematic side view of the present application.
Reference numerals illustrate: 1. a connecting pipe; 2. a first support airbag; 3. a second support airbag; 4. a metal bracket; 5. expanding the balloon; 6. a support airbag inflation channel; 7. expanding the balloon inflation channel; 8. a liquid outlet hole; 9. a groove.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1-3, the application discloses a drug eluting arterial stent molding expander, which comprises a connecting pipe 1, wherein the head of the connecting pipe 1 is connected with a first supporting air bag 2, and a second supporting air bag 3 is arranged at the position, close to the head, of the connecting pipe 1, in the embodiment, the distance between the first supporting air bag 2 and the second supporting air bag 3 is larger than the length of a metal stent 4, and the first supporting air bag 2 and the second supporting air bag 3 are of cylindrical structures after being inflated and can be attached to the inner wall of a blood vessel to limit the movement of the connecting pipe 1.
Further, the connecting tube 1 is provided with an expansion balloon 5 for expanding the metal stent 4 between the first support balloon 2 and the second support balloon 3, the metal stent 4 can be expanded by expanding the expansion balloon 5, after the metal stent 4 is expanded, the blood vessel is expanded, and in addition, the medicine coated on the surface of the metal stent 4 can be dissolved and enter the lesion part under the flowing action of blood.
It is worth mentioning that expansion gasbag 5 is 4 at least, and equidistant interval distribution in the side of connecting pipe 1, the side of connecting pipe 1 is located and runs through between the adjacent expansion gasbag 5 and be equipped with out liquid hole 8, and after the metal support 4 expands, reduce expansion gasbag 5 for have enough big space between the inner wall of connecting pipe 1 and blood vessel, like this, through letting in the liquid medicine in connecting pipe 1, the liquid medicine is discharged through out liquid hole 9, can make the better flow of liquid medicine at the pathological change position of blood vessel, washes out the impurity of piling up of vascular pathological change position.
Specifically, the connecting pipe 1 is provided with a support airbag inflation channel 6 connected with the first support airbag 2 and the second support airbag 3, and the connecting pipe 1 is provided with an expansion airbag inflation channel 7 connected with the expansion airbag 5, the support airbag inflation channel 6 is used for inflating the first support airbag 2 and the second support airbag 3, and the expansion airbag inflation channel 7 is used for inflating the expansion airbag 5.
Specifically, the expansion balloon 5 is an elastic plastic film structure penetrating and fixed on the side surface of the connecting tube 1, and when the expansion balloon 5 is not inflated, the expansion balloon 5 is almost attached to the side surface of the connecting tube 1, so that a large enough gap exists between the side surface of the connecting tube 1 and the blood vessel wall.
The liquid outlet holes 8 are linearly arranged in the length direction of the connecting pipe 1.
In order to prevent the first support balloon 2 and the second support balloon 3 from obstructing the flow of blood, grooves 9 through which blood flows are formed in the side surfaces of the first support balloon 2 and the second support balloon 3.
The application relates to a drug eluting arterial stent molding expander, which is implemented according to the following principle:
When the medical device is used, the metal bracket 4 with medicines on the surface is sleeved on the head of the connecting pipe 1, the connecting pipe 1 is placed in a lesion part of a blood vessel, the first supporting air bag 2, the second supporting air bag 3 and the expanding air bag 5 are respectively inflated through the supporting air bag inflation channel 6 and the expanding air bag inflation channel 7, the first supporting air bag 2, the second supporting air bag 3 and the expanding air bag 5 are inflated, the first supporting air bag 2 and the second supporting air bag 3 are in contact with the inner wall of the blood vessel after being inflated, the connecting pipe 1 is limited, the expanding air bag 5 is inflated to prop open the metal bracket 4, the metal bracket 4 is supported in the blood vessel, when the medical liquid is needed to be flushed, the gas in the expanding air bag 5 is discharged, the expanding air bag 5 is contracted, the liquid outlet 6 and the inner wall of the blood vessel are at a certain distance, the medical liquid is led into the connecting pipe 3, and the medical liquid flows out of the liquid outlet 8, and therefore impurities of the lesion part of the blood vessel can be cleaned better.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. A drug eluting arterial stent molding dilator, characterized in that: the utility model provides a drug eluting arterial support mould type expander, includes connecting pipe (1), the head of connecting pipe (1) is connected with first support gasbag (2), and the position that connecting pipe (1) is close to the head is equipped with second support gasbag (3), connecting pipe (1) are located and are equipped with expansion gasbag (5) that are used for strutting metal support (4) between first support gasbag (2) and second support gasbag (3), connecting pipe (1) are equipped with support gasbag inflation channel (6) that are connected with first support gasbag (2), second support gasbag (3), and connecting pipe (1) are equipped with expansion gasbag inflation channel (7) that are connected with expansion gasbag (5), expansion gasbag (5) are in side equidistance interval distribution of connecting pipe (1), the side of connecting pipe (1) is located and runs through between adjacent expansion gasbag (5) and is equipped with out liquid hole (8).
2. A drug eluting stent molding dilator according to claim 1, wherein: the expansion air bag (5) is of an elastic plastic film structure which penetrates through and is fixed on the side face of the connecting pipe (1).
3. A drug eluting stent molding dilator according to claim 1, wherein: the number of the expansion air bags (5) is at least 4, and the liquid outlet holes (8) are linearly arranged in the length direction of the connecting pipe (1).
4. A drug eluting stent molding dilator according to claim 1, wherein: grooves (9) for blood circulation are formed in the side surfaces of the first support air bag (2) and the second support air bag (3) in a penetrating mode.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221266896U true CN221266896U (en) | 2024-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |