CN100508913C - Indirect artificial valva outside vein - Google Patents
Indirect artificial valva outside vein Download PDFInfo
- Publication number
- CN100508913C CN100508913C CNB2006101546352A CN200610154635A CN100508913C CN 100508913 C CN100508913 C CN 100508913C CN B2006101546352 A CNB2006101546352 A CN B2006101546352A CN 200610154635 A CN200610154635 A CN 200610154635A CN 100508913 C CN100508913 C CN 100508913C
- Authority
- CN
- China
- Prior art keywords
- blood vessel
- valve
- vessel wall
- pressure point
- end pressure
- 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.)
- Expired - Fee Related
Links
- 210000003462 vein Anatomy 0.000 title claims abstract description 31
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 47
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000008280 blood Substances 0.000 description 9
- 210000004369 blood Anatomy 0.000 description 9
- 210000003141 lower extremity Anatomy 0.000 description 6
- 208000007536 Thrombosis Diseases 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 3
- 210000003191 femoral vein Anatomy 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 206010058314 Dysplasia Diseases 0.000 description 1
- 206010062575 Muscle contracture Diseases 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 208000006111 contracture Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007849 functional defect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000007918 intramuscular administration Methods 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000004026 tunica intima Anatomy 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Images
Landscapes
- Prostheses (AREA)
Abstract
An external indirect artificial valve for vein is composed of upper valve body, lower valve body and two side valve axles for connecting said upper valve body with said lower one. The both ends of the artificial valve have respectively the far-end and near-end pressing points to the wall of blood vessel, which are respectively fixed to the far end and near end of vein b suture.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly relate to and be used for the treatment of the Insufficient a kind of indirect artificial valva outside vein of deep veins of lower limb.
Background technology
In the blood circulation of human body whole body, lower limb blood opposing action of gravity is whole sanguimotor important component part to heart regurgitation.Lower limb blood can be resisted gravity and main two reasons that reflux smoothly, and the one, the muscle of shank carries out alternative contraction and diastole, as a muscle pump, will wrap up with intramuscular venous blood and press to heart; The 2nd, in whole veins of lower extremity, generally a vein valve is promptly arranged every 10～20 centimetres, prevent backflowing of blood.And owing to some other reasons such as the obstruction machineization of congenital valve dysplasia, thrombosis or the heavy burdens of standing for a long time, cause the valve closing function incomplete, this type of disease is called the deep veins of lower limb functional defect, and domestic sickness rate has a strong impact on daily life and work up to 8.8%.But at present, such disease is first-selected with the operative treatment, but various treatment meanss still can not reach gratifying curative effect.
In recent years, many foreign scholars propose the design of valve substitute separately.The kind of the valve substitute in the foreign study mainly contains at present: (1) forms a valve spline structure with the whole or interior membrane portions of wall of vein to the intracavity upset, but postoperative may be sent out scar contracture, causes the vein caliber narrow, even blocks; (2) utilize rustless steel, platinum etc., the manufacture of intraocular valve, this type of design directly is exposed to artificial implantation in the blood, and the thrombosis possibility is arranged; (3) design regular compressing venous device outside tube wall, simulation vein valve function.Present when human body lower limbs moved, gastrocnemius flesh button loop was oppressed venous and is just simulated the vein valve function with gastrocnemius flesh button loop compressing vein, and under quiescent condition, gastrocnemius flesh button loop does not just play valve.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the present invention is to provide a kind of indirect artificial valva outside vein, keep the mobile operation implanting device of intravenous blood selectable one-way.
In order to realize that the technical scheme that above-mentioned order invention is adopted is:
The valve upper body is connected by both sides valve axle with the valve lower body; The two ends of valve upper body and valve lower body opposite face are respectively equipped with blood vessel wall far-end pressure point and blood vessel wall near-end pressure point, and blood vessel wall far-end pressure point can contact with venal distal, and blood vessel wall near-end pressure point can contact with venal proximal; The blood vessel wall near-end pressure point of valve upper body and valve lower body is all fixed valve upper body and valve lower body and wall of vein with anchor suture.
Blood vessel wall far-end pressure point compressing area is less than blood vessel wall near-end pressure point compressing area; Blood vessel wall far-end pressure point level of compression is greater than blood vessel wall near-end pressure point level of compression; Blood vessel wall far-end pressure point and valve axle in vessel axis to projector distance less than blood vessel wall near-end pressure point and valve axial projection distance.
Described valve upper body and valve lower body material are the outer titanium alloy that coats expanded polytetrafluoroethylsealing (ePTFE) layer.
The beneficial effect that the present invention has is: this invention can keep intravenous blood selectable one-way to flow, and has the function of physiology valve; And this device is placed on outside the blood vessel wall, keeps the integrity of tunica intima, reduces the possible risk of thrombosis in the postoperative blood vessel.
Description of drawings
Fig. 1 is a structural principle axonometric chart of the present invention;
Fig. 2 is that the present invention is in the structural representation under the closed condition;
Fig. 3 is the profile of A-A line among Fig. 2;
Fig. 4 is the profile of B-B line among Fig. 2;
Fig. 5 be the present invention be under the open state structural representation;
Fig. 6 is the profile of C-C line among Fig. 5;
Fig. 7 is the profile of D-D line among Fig. 5.
Among the figure: 1, valve lower body, 2, the valve upper body, 3, the valve axle, 4, blood vessel wall far-end pressure point, 5, blood vessel wall near-end pressure point, 6, wall of vein, 7, the intravascular space cross section, 8, anchor suture, 9, venal distal, 10, venal proximal.
The specific embodiment
As shown in Figure 1 and Figure 2, valve upper body 2 is connected by both sides valve axle 3 with valve lower body 1; Valve upper body 2 is respectively equipped with blood vessel wall far-end pressure point 4 and blood vessel wall near-end pressure point 5 with the two ends of valve lower body 1 opposite face, and blood vessel wall far-end pressure point 4 can contact with venal distal 9, and blood vessel wall near-end pressure point 5 can contact with venal proximal 10; Valve upper body 2 is all fixing with wall of vein 6 with valve upper body 2 and valve lower body 1 with anchor suture 8 with the blood vessel wall near-end pressure point 4 of valve lower body 1.
Blood vessel wall far-end pressure point 4 compressing areas are less than blood vessel wall near-end pressure point 5 compressing areas; Blood vessel wall far-end pressure point 4 level of compression are greater than blood vessel wall near-end pressure point 5 level of compression; Blood vessel wall far-end pressure point 4 with valve axle 3 in vessel axis to projector distance less than blood vessel wall near-end pressure point 5 and valve axle 3 projector distances.
Described valve upper body 2 and valve lower body 1 material are the outer titanium alloy that coats expanded polytetrafluoroethylsealing (ePTFE) layer.
Operation principle of the present invention is as follows:
As Fig. 2, Fig. 3, shown in Figure 4, when blood flow from venal proximal 10 when venal distal 9 flows, the moment that the moment that 6 pairs of blood vessel wall near-ends of described wall of vein pressure point 5 produces produces greater than 6 pairs of blood vessel wall far-ends of wall of vein pressure point 4, it is big that the level of compression of blood vessel wall far-end pressure point 4 becomes, cause the vein closure, as shown in Figure 3, and the level of compression of blood vessel wall near-end pressure point 5 becomes big, as shown in Figure 4.Thereby this device plays the effect of the blood reflux stream of blocking-up.
As Fig. 5, Fig. 6, shown in Figure 7, when blood flow from venal distal 9 when venal proximal 10 flows, the moment that the moment that 6 pairs of blood vessel wall far-ends of described wall of vein pressure point 4 produces produces greater than 6 pairs of blood vessel wall near-ends of wall of vein pressure point 5, the level of compression of blood vessel wall far-end pressure point 4 diminishes, as shown in Figure 6, and the level of compression of blood vessel wall near-end pressure point 5 becomes big, but is unlikely to be urged to the degree of vein closure, as shown in Figure 7.Thereby blood passes through smoothly, flows to heart.
As shown in Figure 2, for preventing wall of vein 6 lateral displacement taking place at blood vessel wall near-end pressure point 5 places, with sutures the adventitia of wall of vein 6 and the expanded polytetrafluoroethylsealing layered suture of valve upper body 2 and valve lower body 1 is closed anchor suture 8 when this device is settled.
In operation process, surgeon's end femoral vein that dissociates, the side of ligation on disconnected this section femoral vein propped up vein, valve upper body 2 and valve lower body 1 are positioned over outside this section femoral vein tube wall, settle the valve axle 3 of both sides, the sutured suture 8 again, thereby finished the main operation process of settling indirect artificial valva outside vein.
The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (2)
1. indirect artificial valva outside vein, it is characterized in that: valve upper body (2) are connected by both sides valve axles (3) with valve lower body (1); Valve upper body (2) is respectively equipped with blood vessel wall far-end pressure point (4) and blood vessel wall near-end pressure point (5) with the two ends of valve lower body (1) opposite face, blood vessel wall far-end pressure point (4) can contact with venal distal (9), and blood vessel wall near-end pressure point (5) can contact with venal proximal (10); Valve upper body (2) all uses anchor suture (8) that valve upper body (2) are fixing with valve lower body (1) and wall of vein (6) with the blood vessel wall near-end pressure point (5) of valve lower body (1); Described blood vessel wall far-end pressure point (4) compressing area is less than blood vessel wall near-end pressure point (5) compressing area; Blood vessel wall far-end pressure point (4) level of compression is greater than blood vessel wall near-end pressure point (5) level of compression; Blood vessel wall far-end pressure point (4) and valve axle (3) in vessel axis to projector distance less than blood vessel wall near-end pressure point (5) and valve axle (3) projector distance.
2. a kind of indirect artificial valva outside vein according to claim 1 is characterized in that: described valve upper body (2) and valve lower body (1) material are the outer titanium alloy that coats the expanded polytetrafluoroethylsealing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101546352A CN100508913C (en) | 2006-11-13 | 2006-11-13 | Indirect artificial valva outside vein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101546352A CN100508913C (en) | 2006-11-13 | 2006-11-13 | Indirect artificial valva outside vein |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1957861A CN1957861A (en) | 2007-05-09 |
| CN100508913C true CN100508913C (en) | 2009-07-08 |
Family
ID=38069818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101546352A Expired - Fee Related CN100508913C (en) | 2006-11-13 | 2006-11-13 | Indirect artificial valva outside vein |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100508913C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9545289B2 (en) | 2010-02-26 | 2017-01-17 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for endoluminal valve creation |
| WO2012145444A2 (en) | 2011-04-20 | 2012-10-26 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for endoluminal valve creation |
| US10292807B2 (en) | 2012-02-07 | 2019-05-21 | Intervene, Inc. | Systems and methods for endoluminal valve creation |
| WO2014110460A1 (en) | 2013-01-10 | 2014-07-17 | Intervene, Inc. | Systems and methods for endoluminal valve creation |
| US10231613B2 (en) | 2013-09-27 | 2019-03-19 | Intervene, Inc. | Visualization devices, systems, and methods for informing intravascular procedures on blood vessel valves |
| EP3122266B1 (en) | 2014-03-24 | 2018-06-06 | Intervene, Inc. | Devices and systems for controlled hydrodissection of vessel walls |
| US10603018B2 (en) | 2014-12-16 | 2020-03-31 | Intervene, Inc. | Intravascular devices, systems, and methods for the controlled dissection of body lumens |
| US10646247B2 (en) | 2016-04-01 | 2020-05-12 | Intervene, Inc. | Intraluminal tissue modifying systems and associated devices and methods |
| WO2021262785A1 (en) | 2020-06-23 | 2021-12-30 | Intervene, Inc. | Endovascular valve formation system with imaging capability |
-
2006
- 2006-11-13 CN CNB2006101546352A patent/CN100508913C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 慢性下肢静脉功能不全的外科治疗进展及其疗效评价. 王俊，刘颖斌，彭淑牖.中国实用外科杂志，第25卷第12期. 2005 |
| 慢性下肢静脉功能不全的外科治疗进展及其疗效评价. 王俊，刘颖斌，彭淑牖.中国实用外科杂志，第25卷第12期. 2005 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1957861A (en) | 2007-05-09 |
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Granted publication date: 20090708 Termination date: 20091214 |