CN111166541A - Blood vessel support device for interventional operation - Google Patents
Blood vessel support device for interventional operation Download PDFInfo
- Publication number
- CN111166541A CN111166541A CN201911378156.2A CN201911378156A CN111166541A CN 111166541 A CN111166541 A CN 111166541A CN 201911378156 A CN201911378156 A CN 201911378156A CN 111166541 A CN111166541 A CN 111166541A
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- CN
- China
- Prior art keywords
- stent
- supporting rod
- blood vessel
- nickel
- reticular
- 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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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/821—Ostial stents
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
Abstract
The invention relates to a vascular stent device for interventional operation, which comprises a front end, a first support rod, a second support rod, a rear end and a vascular stent, wherein a through groove matched with the first support rod is formed in the second support rod, one end of the first support rod penetrates through the second support rod along the through groove and is connected with the front end, the rear end is sleeved on the outer wall of the second support rod, and the vascular stent is arranged between the front end and the rear end and surrounds the outer sides of the first support rod and the second support rod. The design has the advantages of simple structure, easy manufacture, practicality and high efficiency.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a vascular stent device for interventional operation.
Background
Compared with the traditional peripheral vascular surgery, the minimally invasive interventional surgery adopting the stent for treatment has small wound and good effect, and becomes the main method for treating the peripheral vascular stenosis at present.
The existing blood vessel stent is generally formed by cutting thin-wall metal tubes by laser as shown in fig. 1, and because the nodes of the intersected metal tubes are relatively fixed, after the blood vessel stent is extended into a blood vessel, two ends of the blood vessel stent can be inwards collapsed to form two relatively-reduced horn mouths, namely, the two relatively-reduced horn mouths are similar to a dripping shape, so that the blood flow can be prevented, and the operation failure can be seriously caused.
In order to prevent the above situation, as shown in fig. 2, the conventional vascular stent is generally woven by using metal wires to form a mesh, but the radial rigidity of the vascular stent is poor due to the radial openings of the mesh structure, and the durability of the vascular stent is relatively poor.
Disclosure of Invention
The invention can be contracted before being inserted into the blood vessel and expanded to the position required to be supported, thereby preventing the blood vessel from being damaged in the insertion process, playing the role of increasing the practical performance of the blood vessel, and providing the blood vessel stent device for interventional operation.
In order to solve the technical problem, the invention provides a vascular stent device for interventional operation, which is characterized in that: the blood vessel stent comprises a front end, a first supporting rod, a second supporting rod, a rear end and a blood vessel stent, wherein a through groove matched with the first supporting rod is formed in the second supporting rod, one end of the first supporting rod penetrates through the second supporting rod along the through groove and is connected with the front end, the rear end is sleeved on the outer wall of the second supporting rod, and the blood vessel stent is arranged between the front end and the rear end and surrounds the outer sides of the first supporting rod and the second supporting rod;
the vascular stent is composed of a conical reticular stent and a cylindrical reticular stent, two ends of the cylindrical reticular stent are respectively connected with the conical reticular stent, the front end and the rear end are respectively connected with the small-diameter ends of the two conical reticular stents, and the large-diameter end of the conical reticular stent is connected with the cylindrical reticular stent.
Further: the tubular mesh-shaped stent is formed by winding at least one nickel-titanium alloy wire, the blood vessel stent wound by the nickel-titanium alloy wire comprises a tubular body and round corners arranged at two ends of the body, the body is formed by overlapping the nickel-titanium alloy wire in a forward rotation mode and a reverse rotation mode, the body is formed by a group of rhombic grid units, each rhombic grid unit is formed by surrounding adjacent forward rotation nickel-titanium alloy wire and reverse rotation nickel-titanium alloy wire, and the forward rotation and reverse rotation switching parts of the nickel-titanium alloy wire are the round corners at two ends of the body.
And further: the diamond shapeObtuse angle of grid cell
In the range of 95-170 degrees.
And further: the body of the conical reticular stent is made of water or alloy compatible with a human body, and is of a net tubular structure formed by conjoined net ring units and connecting units, and the expanded shape of the body is integrally tapered along the length direction.
After the structure is adopted, the blood vessel stent can be contracted before being inserted into the blood vessel and then expanded to the position where the support is needed to be answered for supporting, so that the blood vessel is prevented from being damaged in the insertion process, and the effect of increasing the practical performance of the blood vessel stent is achieved; and the design also has the advantages of simple structure, easy manufacture, practicality and high efficiency.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a vascular stent of the prior art.
FIG. 2 is a schematic structural diagram of another prior art vascular stent
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a structural view of a cylindrical mesh stent.
FIG. 5 is a block diagram of a tapered mesh stent.
Detailed Description
As shown in fig. 3, a blood vessel stent device for interventional operation comprises a front end 1, a first support rod 7, a second support rod 6, a rear end 2 and a blood vessel stent, wherein a through groove matched with the first support rod is formed in the second support rod, one end of the first support rod passes through the second support rod along the through groove and is connected with the front end, the rear end is sleeved on the outer wall of the second support rod, and the blood vessel stent is arranged between the front end and the rear end and surrounds the outer sides of the first support rod 7 and the second support rod 6; the vascular stent is composed of a conical reticular stent 3 and a cylindrical reticular stent 4, two ends of the cylindrical reticular stent are respectively connected with the conical reticular stent, the front end and the rear end are respectively connected with the small-diameter ends of the two conical reticular stents, and the large-diameter end of the conical reticular stent is connected with the cylindrical reticular stent.
The cylindrical mesh-shaped stent shown in fig. 4 is formed by winding at least one nickel-titanium alloy wire, the blood vessel stent wound by the nickel-titanium alloy wire comprises a cylindrical body and circular corners arranged at two ends of the body, the body is formed by overlapping the nickel-titanium alloy wire in a positive rotation mode and a reverse rotation mode, the body is formed by a group of rhombic grid units, each rhombic grid unit is formed by surrounding adjacent positive rotation nickel-titanium alloy wire and reverse rotation nickel-titanium alloy wire, and a positive rotation switching part and a reverse rotation switching part of the nickel-titanium alloy wire are the circular corners at two ends of the body; obtuse angle of the rhombic grid unit
In the range of 95-170 degrees.
The material of the body of the conical reticular stent shown in figure 5 is water or alloy compatible with human body, and the conical reticular stent is a net tubular structure formed by conjoined net ring units and connecting units, and the shape of the expanded body is a tapered cone along the length direction.
Claims (4)
1. A vascular stent device for interventional procedures, characterized by: the blood vessel stent comprises a front end head (1), a first supporting rod (7), a second supporting rod (6), a rear end head (2) and a blood vessel stent, wherein a through groove matched with the first supporting rod is formed in the second supporting rod, one end of the first supporting rod penetrates through the second supporting rod along the through groove and is connected with the front end head, the rear end head is sleeved on the outer wall of the second supporting rod, and the blood vessel stent is installed between the front end head and the rear end head and surrounds the outer sides of the first supporting rod (7) and the second supporting rod (6);
the vascular stent is composed of a conical reticular stent (3) and a cylindrical reticular stent (4), two ends of the cylindrical reticular stent are respectively connected with the conical reticular stent, the front end and the rear end are respectively connected with the small-diameter ends of the two conical reticular stents, and the large-diameter end of the conical reticular stent is connected with the cylindrical reticular stent.
2. A vascular stent device for interventional procedures as defined in claim 1, wherein: the tubular mesh-shaped stent is formed by winding at least one nickel-titanium alloy wire, the blood vessel stent wound by the nickel-titanium alloy wire comprises a tubular body and round corners arranged at two ends of the body, the body is formed by overlapping the nickel-titanium alloy wire in a forward rotation mode and a reverse rotation mode, the body is formed by a group of rhombic grid units, each rhombic grid unit is formed by surrounding adjacent forward rotation nickel-titanium alloy wire and reverse rotation nickel-titanium alloy wire, and the forward rotation and reverse rotation switching parts of the nickel-titanium alloy wire are the round corners at two ends of the body.
3. A vascular stent device for interventional procedures as defined in claim 2, wherein: obtuse angle of the rhombic grid unit
In the range of 95-170 degrees.
4. A vascular stent device for interventional procedures as defined in claim 1, wherein: the body of the conical reticular stent is made of water or alloy compatible with a human body, and is of a net tubular structure formed by conjoined net ring units and connecting units, and the expanded shape of the body is integrally tapered along the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378156.2A CN111166541A (en) | 2019-12-27 | 2019-12-27 | Blood vessel support device for interventional operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378156.2A CN111166541A (en) | 2019-12-27 | 2019-12-27 | Blood vessel support device for interventional operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111166541A true CN111166541A (en) | 2020-05-19 |
Family
ID=70646374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911378156.2A Withdrawn CN111166541A (en) | 2019-12-27 | 2019-12-27 | Blood vessel support device for interventional operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111166541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022461A (en) * | 2020-09-16 | 2020-12-04 | 北京美迪微科技有限责任公司 | Be applied to intravascular stent of carotid |
-
2019
- 2019-12-27 CN CN201911378156.2A patent/CN111166541A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022461A (en) * | 2020-09-16 | 2020-12-04 | 北京美迪微科技有限责任公司 | Be applied to intravascular stent of carotid |
| CN112022461B (en) * | 2020-09-16 | 2023-11-24 | 北京美迪微科技有限责任公司 | Be applied to vascular support of carotid artery |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200519 |
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| WW01 | Invention patent application withdrawn after publication |