CN211271403U - Controllable fine hair support - Google Patents
Controllable fine hair support Download PDFInfo
- Publication number
- CN211271403U CN211271403U CN201922445400.4U CN201922445400U CN211271403U CN 211271403 U CN211271403 U CN 211271403U CN 201922445400 U CN201922445400 U CN 201922445400U CN 211271403 U CN211271403 U CN 211271403U
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- China
- Prior art keywords
- fluff
- controllable
- villus
- support
- wall
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- 210000004209 hair Anatomy 0.000 title claims abstract description 17
- 206010028980 Neoplasm Diseases 0.000 claims abstract description 29
- 230000017531 blood circulation Effects 0.000 claims abstract description 8
- 210000004369 blood Anatomy 0.000 claims description 7
- 239000008280 blood Substances 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 229920004934 Dacron® Polymers 0.000 claims 1
- 206010002329 Aneurysm Diseases 0.000 description 28
- 208000007536 Thrombosis Diseases 0.000 description 9
- 208000002223 abdominal aortic aneurysm Diseases 0.000 description 5
- 208000007474 aortic aneurysm Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 210000001772 blood platelet Anatomy 0.000 description 4
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- 238000000034 method Methods 0.000 description 2
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- 206010014513 Embolism arterial Diseases 0.000 description 1
- 208000001750 Endoleak Diseases 0.000 description 1
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- 208000032843 Hemorrhage Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 206010066902 Surgical failure Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 238000012084 abdominal surgery Methods 0.000 description 1
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- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
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- 230000001732 thrombotic effect Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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Abstract
The utility model discloses a controllability fine hair support, include: a covered stent and villi; the stent graft includes: the stent body is a reticular tube. The covering film is coated on the outer periphery of the support body and forms a cavity channel with two open ends with the support body to serve as a blood circulation channel. A plurality of fine hairs which are all in a filament shape, one end of each fine hair is fixedly connected with the outer wall of the film covering, and the other end of each fine hair faces outwards; a plurality of villi are closely arranged and are fully distributed on the outer wall of the covering film. The controllable villus support increases the fit degree between the support and the tumor neck, and prevents the occurrence of inner leakage.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of medical supplies, especially, relate to a controllability fine hair support.
[ background of the invention ]
The abdominal aortic aneurysm is characterized in that the wall of the abdominal aortic artery loses elasticity or becomes thin due to arteriosclerosis, injury or congenital factors, and a weak blood vessel gradually bulges outwards under the impact of blood flow so as to form aneurysm, and the damage of the aneurysm mainly comprises: firstly, the aneurysm is ruptured, acute bleeding occurs, and the life is threatened when the aneurysm is serious; secondly, the aneurysm compresses the surrounding tissues and organs to cause corresponding symptoms; and the thrombus on the inner wall of the aneurysm falls off to cause acute arterial embolism of the far-end limb.
The abdominal aortic aneurysm treatment mainly comprises traditional surgical operations and intravascular minimally invasive treatment, the traditional open abdominal surgery has the defects of large wound and more postoperative complications, and the intracavitary minimally invasive treatment has the advantages of small wound, less complications, high safety, less pain of patients and the like, and gradually becomes a main method for treating the abdominal aortic aneurysm. The covered stent in a compressed state is delivered to the position of the pathological change of the blood vessel, the covered stent is released after being accurately positioned, and the expanded covered stent covers the pathological change blood vessel, so that the aneurysm is isolated, a new blood flow channel is formed, blood can not enter the aneurysm, and the purpose of treatment is achieved. The lumen of the isolated aneurysm becomes thrombotic and gradually shrinks.
One of the difficulties of the abdominal aortic aneurysm endoluminal isolation is the neck of the aneurysm, which is the part between the upper edge of the aneurysm and the renal artery, and the length of the neck of the aneurysm is required to be more than 1.5cm in the current domestic and foreign guidelines, because most of patients with abdominal aortic aneurysm have arterial plaque or distortion, the covered stent overlaps with the neck of the aneurysm by more than 1.5cm, so that the stent can be completely attached to the neck of the aneurysm without causing internal leakage. Once endoleaks occur, blood enters the aneurysm cavity from between the stent and the neck of the aneurysm, resulting in surgical failure.
[ Utility model ] content
The utility model aims at providing a controllability fine hair support has increased the laminating degree between support and the tumor neck, the emergence of leaking in the prevention.
The utility model adopts the following technical scheme: a controllable fluff scaffold comprising: a stent graft and a floss.
The stent graft includes: the stent body is a reticular tube.
The covering film is coated on the outer periphery of the support body and forms a cavity channel with two open ends with the support body to serve as a blood circulation channel.
A plurality of fine hairs which are all in a filament shape, one end of each fine hair is fixedly connected with the outer wall of the film covering, and the other end of each fine hair faces outwards; a plurality of villi are closely arranged and are fully distributed on the outer wall of the covering film.
Further, the down fixing device also comprises a detachable down fixing piece.
Furthermore, the fluff fixing piece is a sleeve, the shape of which is consistent with that of the bracket body and is sleeved outside the fluff; when the fluff fixing piece is removed, the fluff is unfolded and is used for being in close contact with the tumor neck and the inner wall of the tumor cavity.
Furthermore, the fluff fixing piece is a binding rope and is wound and fixed outside the fluff; when the fluff fixing piece is removed, the fluff is unfolded and is used for being in close contact with the tumor neck and the inner wall of the tumor cavity.
Furthermore, the length of each fluff is 0.5-2 cm.
Furthermore, each fluff is made of polyester or terylene.
Furthermore, the bracket body is in a column shape with a large upper end and a small lower end from the flowing direction of blood, and is in smooth contraction transition from the large head end to the small head end; or the Chinese character is in a herringbone shape from top to bottom.
The use method of the controllable villus support comprises the following steps:
step 1.1, placing and positioning a controllable villus support, wherein the upper end of the controllable villus support is sleeved in the neck of a patient, and the lower end of the controllable villus support is communicated with iliac arteries;
and 1.2, removing the sleeve or the binding rope, unfolding the fluff and tightly contacting the inner wall.
The utility model has the advantages that: 1. the villus can be used as foreign matters to attract a large number of blood platelets in blood to adhere and form thrombus, so that the attaching degree between the stent and the tumor neck is increased, and the occurrence of internal leakage is prevented. 2. The villi in the lumen of the aneurysm will help promote thrombosis in the lumen of the aneurysm. 3. The villus can effectively fill the spaces between the stents and the vessel wall.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of controllable villus branches;
FIG. 2 is a schematic view of a controllable fluff support sleeved with one form of fluff fastener;
FIG. 3 is a schematic structural view of a controllable fluff holder sleeved with another type of fluff fixing member;
FIG. 4 is a schematic structural diagram of controllable villus branches in a herringbone pattern.
Wherein: 1. 1-1, a stent body; 1-2, coating a film; 2. fluff; 3. a pile fastener.
[ detailed description ] embodiments
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
In the utility model, the upper end refers to the end into which blood flows; "lower end" refers to the end from which blood flows. "axial" is the direction along the length of the stent graft.
Example 1
The embodiment discloses a controllable villus support, as shown in fig. 1 and 2, comprising: the stent graft 1 includes: the stent body 1-1 is a reticular tube; the covering film 1-2 is coated on the outer periphery of the bracket body 1-1 and forms a cavity channel with two open ends with the bracket body 1 as a blood circulation channel; a plurality of fine hairs 2 which are in a filament shape, one end of each fine hair 2 is fixedly connected to the outer wall of the covering film 1-2, and the other end of each fine hair faces outwards; a plurality of piles 2 are closely arranged and are fully distributed on the outer wall of the covering film 1-2. At this time, the villus 2 is in a normally deployed state, and at this time, the villus scaffold is a scaffold of a complete structure, mainly used in a state that the length of the neck of the tumor is below 1.5 cm.
If the neck is more than 1.5cm, the fluff can be fixed when not needed, namely a detachable fluff fixing piece is arranged, the fluff fixing piece is a sleeve 3, the shape of the sleeve is consistent with that of the support body 1-1, and the sleeve is sleeved outside the fluff 2; when the fluff support has a gap with the inner wall of the tumor neck, the fluff fixing part is removed, and the fluff 2 is unfolded and contacted with the inner wall of the tumor neck. The length of the fluff 2 is 0.5-2 cm. The polymer material is selected, such as polyester or terylene. The fineness of the pile 2 is based on the state of realization of the pile, and the finer the pile, the better the effect in principle. The bracket body 1-1 is in a column shape with a large upper end and a small lower end, and is in smooth contraction transition from a large head end to a small head end. Or a herringbone from top to bottom as shown in fig. 4.
Example 2
The difference between the embodiment and the embodiment 1 is that the fluff fixing piece is a binding rope 4 which is wound and fixed outside the fluff 2; when the fluff support has a gap with the inner wall of the tumor neck, the fluff fixing part is removed, and the fluff 2 is unfolded and contacted with the inner wall of the tumor neck. The binding rope 4 is a single continuous high-strength nylon thread used for fixing the fluff 2. When the controllable villus support is used, the controllable villus support is placed, villus 2 is in a state of being fixed by the binding rope, after the controllable villus support is accurately positioned, one end of the binding rope is pulled, reversely wound and removed, and under the action of no external force, as shown in fig. 3, the villus 2 is unfolded to fill the gap between the support and the tumor neck, so that thrombosis is promoted, and internal leakage does not occur between the support body 1 and the artery.
The controllable villus support is used as follows:
in the compressed state, the controllable villus stent is delivered to the aneurysm disease site from the arterial vessel by the delivery device, the upper end is used for being inserted into the neck of the aneurysm, and the lower end is used for being inserted into the bilateral iliac arteries. The length of the stent graft is determined according to the length of the aneurysm, the stent graft is to span the aneurysm in the axial direction, for example, if the axial length of the aneurysm is 10cm, the length of the stent graft is at least about 12cm, the stent graft is to span the aneurysm, the upper end of the stent graft is placed at the upper end of the lesion part to be covered, namely, in the neck of the aneurysm, and the lower end of the stent graft is placed at the lower end of the lesion part to be covered, and is used for communicating with the iliac artery.
When the controllable villus bracket is in a state without a villus fixing piece, at the moment, villus is in close contact with the inner wall of the tumor neck. Because a large amount of platelets exist in blood, and the platelets have the functions of adhering to foreign matters and inducing thrombus formation, thrombus can be formed between the stent and the tumor neck and between the villi and the tumor wall of the aneurysm, so that the attaching degree between the stent and the tumor neck is increased, and internal leakage is prevented. At the same time, the villi on the villus stent in the tumor cavity can also induce the rapid thrombus formation in the tumor cavity so as to seal and eliminate the aneurysm.
When the controllable fluff bracket is externally provided with a fluff fixing piece, if the length of the tumor neck is more than 1.5cm, the fluff fixing piece does not need to be detached. When the villus fixing piece needs to be detached, the villus fixing piece is taken out through the vascular cavity. The villus 2 is unfolded, the villus at the upper end of the villus 2 is in close contact with the inner wall of the tumor neck, the villus on the villus bracket positioned in the tumor cavity is in close contact with the inner wall of the tumor cavity, a large amount of blood platelets in the blood are adhered to the villus 2 and induce the formation of thrombus, and meanwhile, the villus 2 can cause the formation of thrombus between the bracket and the tumor wall of the aneurysm, so that the attaching degree between the bracket and the tumor neck is increased, and the occurrence of internal leakage is prevented.
Claims (7)
1. A controllable fluff support, comprising: a covered stent (1) and villus (2);
the stent graft (1) comprises:
the stent body (1-1) is a reticular tube;
the covering film (1-2) covers the outer periphery of the bracket body (1-1) and forms a cavity channel with two open ends with the bracket body (1-1) as a blood circulation channel;
a plurality of fine hairs (2) which are in a filament shape, one end of each fine hair (2) is fixedly connected to the outer wall of the covering film (1-2), and the other end of each fine hair faces outwards; the fluff (2) is closely arranged and is fully distributed on the outer wall of the covering film (1-2).
2. A controllable fluff holder in accordance with claim 1, further comprising a removable fluff holder.
3. A controllable fluff holder according to claim 2, characterized in that the fluff holder is a sleeve (3) with a shape corresponding to the shape of the holder body (1-1) and is sleeved outside the fluff (2); when the sleeve (3) is removed, the villus (2) is unfolded and is used for being in close contact with the tumor neck and the inner wall of the tumor cavity.
4. A controllable fluff holder according to claim 2, characterized in that the fluff holder is a binding rope (4) wound and fixed outside the fluff (2); when the binding rope (4) is removed, the villus (2) is unfolded and is used for being in close contact with the tumor neck and the inner wall of the tumor cavity.
5. A controllable fluff support according to claim 1 or 2, characterized in that the length of each fluff (2) is 0.5-2 cm.
6. A controllable fluff support according to claim 5, characterized in that each fluff (2) is made of polyester or dacron.
7. A controllable villus support according to claim 6, wherein the support body (1-1) is a column with a large upper end and a small lower end according to the blood flowing direction, and the transition from the large head end to the small head end is smooth and contracted; or the Chinese character is in a herringbone shape from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922445400.4U CN211271403U (en) | 2019-12-30 | 2019-12-30 | Controllable fine hair support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922445400.4U CN211271403U (en) | 2019-12-30 | 2019-12-30 | Controllable fine hair support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211271403U true CN211271403U (en) | 2020-08-18 |
Family
ID=72010749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922445400.4U Withdrawn - After Issue CN211271403U (en) | 2019-12-30 | 2019-12-30 | Controllable fine hair support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211271403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110946675A (en) * | 2019-12-30 | 2020-04-03 | 陈江浩 | Controllable fine hair support |
-
2019
- 2019-12-30 CN CN201922445400.4U patent/CN211271403U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110946675A (en) * | 2019-12-30 | 2020-04-03 | 陈江浩 | Controllable fine hair support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200818 Effective date of abandoning: 20240708 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200818 Effective date of abandoning: 20240708 |