CN103784179A - Blood vessel constraining device - Google Patents
Blood vessel constraining device Download PDFInfo
- Publication number
- CN103784179A CN103784179A CN201410031957.2A CN201410031957A CN103784179A CN 103784179 A CN103784179 A CN 103784179A CN 201410031957 A CN201410031957 A CN 201410031957A CN 103784179 A CN103784179 A CN 103784179A
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- China
- Prior art keywords
- blood vessel
- rigid frame
- framework
- lock pin
- blood
- 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.)
- Granted
Links
- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 38
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 7
- 241000283984 Rodentia Species 0.000 claims description 3
- 208000014674 injury Diseases 0.000 abstract description 11
- 230000008733 trauma Effects 0.000 abstract description 8
- 210000004369 blood Anatomy 0.000 abstract description 7
- 239000008280 blood Substances 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 7
- 210000000709 aorta Anatomy 0.000 abstract description 6
- 208000007536 Thrombosis Diseases 0.000 abstract description 5
- 210000003038 endothelium Anatomy 0.000 abstract description 5
- 230000002792 vascular Effects 0.000 abstract description 5
- 206010033892 Paraplegia Diseases 0.000 abstract description 4
- 206010061660 Artery dissection Diseases 0.000 abstract description 3
- 230000004087 circulation Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000036770 blood supply Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 2
- 230000017531 blood circulation Effects 0.000 description 12
- 208000032843 Hemorrhage Diseases 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 7
- 210000004026 tunica intima Anatomy 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000001225 therapeutic effect Effects 0.000 description 5
- 206010002329 Aneurysm Diseases 0.000 description 4
- 231100000216 vascular lesion Toxicity 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 208000028867 ischemia Diseases 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 206010059245 Angiopathy Diseases 0.000 description 1
- 206010053567 Coagulopathies Diseases 0.000 description 1
- 241001484259 Lacuna Species 0.000 description 1
- 208000031816 Pathologic Dilatation Diseases 0.000 description 1
- 206010050902 Postoperative thrombosis Diseases 0.000 description 1
- 241000294142 Vascellum Species 0.000 description 1
- 239000002473 artificial blood Substances 0.000 description 1
- 230000035602 clotting Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000024883 vasodilation Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
Abstract
The invention discloses a blood vessel constraining device which comprises a hollow cylindrical rigid frame. One radial side of the rigid frame is broken. The device further comprises an elastic body which is fixed between borders of the rigid frame and forms a semi-ring sleeve structure. The blood vessel constraining device can improve the tension stress performance of a vascular wall, angiectasis and angiorrhexis can be prevented, direct contact of instruments and blood vessel endothelium and blood is avoided, the blood and the blood vessel endothelium are protected, extracorporeal circulation is avoided, operation is easy, time is short, trauma is small, treatment effect can be greatly improved, meanwhile, a bare stent placed in a lumen can be combined for treating artery dissection, the inner portion and the outer portion of the vascular wall are clamped tightly, the mechanical strength of the vascular wall is improved, damage on an aorta intima is lowered, forming rate of inner membrane crevasses is lowered, inner leakage is avoided, the function of vessel inner membrane protecting is achieved, thrombus-causing rate can be lowered, the bare stent has no influence on blood supply of an aorta branch vessel, the occurrence rate of paraplegia is lowered, the implanting range is wide, a false lumen is fully closed, and the shortcoming that an existing later-period false lumen is not completely closed continuously is overcome.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, relate in particular to a kind of blood vessel restraint device.
Background technology
Aneurysm is very dangerous clinically a kind of angiopathy, once finding aneurysm patient, need treat accordingly it as early as possible, and the measure for the treatment of at present is mainly divided into: 1. surgical operation vascular replacement.Curative effect is comparatively definite, but this type of patient of patient mostly is advanced age, and operation wound is large, and most of patients needs extracorporeal circulation, and Peri operative mortality is higher, and the complication such as postoperative thrombosis, important blood vessels branch are narrow, anastomotic stoma expansion is comparatively common.2. utilize Wicresoft's interventional therapeutic technique of inner cavity insulation principle, it is the induction system thinner with a set of caliber, the overlay film frame that the band of confined state is supported is sent to vascular lesion position, after accurately locating, by its release and cover lesion vessels, isolated vascular lesion position also forms new channel of blood flow, between overlay film frame and lesion vessels, form false chamber, false intracavity is lost after blood supply, its inner remained blood forms thrombosis gradually and flesh changes into vascular tissue, thereby reach the object for the treatment of, but this kind of modal complication of Therapeutic Method has: 1. internal hemorrhage due to trauma: refer to that false chamber is completely not isolated, still have blood flow.Once enter not laminating completely between overlay film frame near-end and blood vessel, under blood flow impacts, this lacuna can bear larger pressure, so that blood flow runs through whole gap, form internal hemorrhage due to trauma, after internal hemorrhage due to trauma occurs, false chamber is difficult to complete thrombosis, can cause the complication such as false chamber Ectasia, aorta rupture, finally treat unsuccessfully; 2. overlay film frame causes new cut: the reason of this complication is more, wherein, overlay film frame and blood flow contact area are large, be subject to larger blood flow impact force, for center rest, proximal stent need to have compared with hightension compressing aorta avoids displacement, this oppressive force becomes the major reason of aortic tunica intima damage, cut formation, and tunica intima acts in stable most important maintaining clotting system, the local tunica intima of having treated all grievous injury such as at present artificial blood vessel's displacement, intracavity overlay film frame are isolated, causes hematoclasis, thrombosis; 3. thrombosis: overlay film frame and blood flow contact area are large, and blood vessel endothelium is difficult to cover overlay film frame, remains in the higher bolt rate that causes, and the 4. important organ ischemia such as paraplegia performance, for overlay film frame stops due to important blood vessels branch blood flow.
Therefore, for addressing the above problem, need one to be used for the treatment of aneurysmal medical apparatus and instruments, the generation of the complication such as anti-tampon, important organ ischemia, internal hemorrhage due to trauma, inner film injury, significantly improves therapeutic effect.
Summary of the invention
In view of this, the object of this invention is to provide a kind of blood vessel restraint device, can effectively anti-tampon, the generation of the complication such as important organ ischemia, internal hemorrhage due to trauma, inner film injury, can significantly improve therapeutic effect.
Blood vessel restraint device of the present invention, comprises the rigid frame of hollow columnar; A radially side of described rigid frame disconnects; Also comprise and be fixed on the elastomer that forms semi-ring nested structure between described rigid frame frame;
Further, described rigid frame comprises and is the first hinged framework of hinge shape and the second framework;
Further, described rigid frame also comprises for by the first framework and the fixing lockable mechanism of the second framework locking;
Further, described lockable mechanism comprises along the lock pin of the first framework and the setting of the second framework hinge; The corresponding lock pin of described the first framework is provided with the first locking hole; The corresponding lock pin of the second framework is provided with the second locking hole; Described lock pin is spline pin, and described the first locking hole and the second locking hole are to close with spline pin rodent the splined hole of locking;
Further, on described lock pin, each key crest top land is provided with around lock pin and is circumferentially with anti-slip tank;
Further, described anti-slip tank is helicla flute;
Further, described elastomer comprises along axially setting the multiple curved tinsel along rigid frame axially-aligned of rigid frame.
The invention has the beneficial effects as follows: blood vessel restraint device of the present invention, while being used for the treatment of aneurysm and prevention distensibility of blood vessel disease, can compress lesion locations from blood vessel outside, strengthen the tension stress performance of blood vessel wall, prevent vasodilation, break, avoid apparatus directly to contact with blood vessel endothelium and blood, protected blood and blood vessel endothelium; Extracorporeal circulation has been avoided in this type of operation, simple to operate, the time is short, and wound is little, can significantly improve therapeutic effect, can place bare bracket treatment artery dissection by connecting pipe intracavity simultaneously, will inside and outside blood vessel wall, clamp, and has improved the mechanical strength of blood vessel wall; The object of bare bracket is support envelope, make it and former wound surface laminating, little with blood flow contact area, be subject to impulsive force little, be difficult for displacement, can avoid displacement therefore proximal stent need to be oppressed aorta compared with small tension receiving coil, reduce the damage to aortic tunica intima,, there is not internal hemorrhage due to trauma in the formation rate that reduces intimal tear; Bare bracket and blood flow contact area are little, have the function of protection tunica intima, can reduce the bolt rate that causes; And bare bracket does not affect the blood confession of aortic branch blood vessel, without the origin place that avoids the important nutrient vessel of spinal cord, reduce the incidence rate of paraplegia, that can implant is wider, the false chamber of adequate closure, reduce existing the disadvantage of later stage vacation chamber sustainable existence dysraphism.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is the top view of Fig. 1.
The specific embodiment
Fig. 1 is front view of the present invention; Fig. 2 is the top view of Fig. 1, as shown in the figure: the blood vessel restraint device of the present embodiment, comprises the rigid frame 1 of hollow columnar; A radially side of described rigid frame 1 disconnects and forms the gap 2 with certain width, can rigid frame 1 be enclosed within to blood vessel outside by this gap 2, rigid frame 1 internal diameter is slightly less than corresponding vascular lesion position external diameter, rigid frame 1 can be fixed in vessel outer wall by banding, for the position that has branch vessel, this gap 2 can be stepped down to branch vessel towards a side at branch vessel place, also can offer slot to make way in gap 2 limit portions to the situation that branch vessel diameter is larger; Also comprise and be fixed on the elastomer 3 that forms semi-ring nested structure between described rigid frame 1 frame, elastomer 3 can adapt to the bending of blood vessel to a certain extent, can make it to shrink for diseased region provides elastic force simultaneously, effectively treats aneurysm; Rigid frame 1 frame comprises the ring wale of the end, two ends that forms rigid support and is fixedly connected on the longeron between two annular girders, and the corresponding gap of ring wale 2 places disconnect and are semi-annular shape; At least corresponding gap of longeron 2 both sides portions respectively arrange one; This blood vessel restraint device can be placed bare bracket treatment artery dissection by connecting pipe intracavity, bare bracket is prior art, its structure is the elasticity silk screen of shell-like, if application number is 200810106140.1 disclosed a kind of internally bare bracket of vascellum, can will inside and outside blood vessel wall, clamp, improve the mechanical strength of blood vessel wall; The object of bare bracket is support envelope, make it and former wound surface laminating, little with blood flow contact area, be subject to impulsive force little, be difficult for displacement, can avoid displacement therefore proximal stent need to be oppressed aorta compared with small tension receiving coil, reduce the damage to aortic tunica intima,, there is not internal hemorrhage due to trauma in the formation rate that reduces intimal tear; Bare bracket and blood flow contact area are little, have the function of protection tunica intima, can reduce the bolt rate that causes; And bare bracket does not affect the blood confession of aortic branch blood vessel, without the origin place that avoids the important nutrient vessel of spinal cord, reduce the incidence rate of paraplegia, that can implant is wider, the false chamber of adequate closure, reduce existing the disadvantage of later stage vacation chamber sustainable existence dysraphism.
In the present embodiment, described rigid frame 1 comprises and is the first hinged framework 4 of hinge shape and the second framework 5, the first framework 4 and the second framework 5 half buckling states form the rigid frame 1 with above-mentioned gap 2, be convenient to this rigid frame 1 to be fastened on vessel outer wall, the auxiliary fixing devices such as recycling bolt or pin carry out the relative implantation that fixedly completes rigid frame 1 to the first framework 4 with the second framework 5.
In the present embodiment, described rigid frame 1 also comprises for by the first framework 4 and the fixing lockable mechanism of the second framework 5 lockings, makes rigid frame 1 be fixed on vessel outer wall, prevents that rigid frame 1 is shifted, and guarantees therapeutic effect.
In the present embodiment, described lockable mechanism comprises along the lock pin 6 of the first framework 4 and the second framework 5 hinges settings; The corresponding lock pin 6 of described the first framework 4 is provided with the first locking hole 8; The corresponding lock pin 6 of the second framework 5 is provided with the second locking hole 9; Described lock pin 6 is spline pin, described the first locking hole 8 and the second locking hole 9 are for can close with spline pin rodent the splined hole of locking, the backlash of spline tooth is rationally set, can carry out multi-faceted fixing to the first framework 4 and the second framework 5 by lock pin 6, practical, rigid frame 1 is fastened on after vessel outer wall compression, lock pin 6 is inserted in the first locking hole 8 and the second locking hole 9, simple to operation; Lock pin 6 outside diameters are slightly larger than the first locking hole 8 and the interior circular diameter of the second locking hole 9, make lock pin 6 insert rear and the first locking hole 8 and the second locking hole 9 interference fit, prevent that lock pin 6 from coming off, and keep the position stability between the first framework 4 and the second framework 5.
In the present embodiment, on described lock pin 6, each key crest top land is provided with around lock pin 6 and is circumferentially with anti-slip tank 7, can reduce the contact area between lock pin 6 and the first locking hole 8 and the second locking hole 9, be beneficial to lock pin 6 surfaces small deformation occurs, to insert smoothly in the first locking hole 8 and the second locking hole 9, and can improve the coefficient of friction between lock pin 6 and the first locking hole 8 and the second locking hole 9, further improve the syndeton intensity between lock pin 6 and the first locking hole 8 and the second locking hole 9, prevent that lock pin 6 from coming off.
In the present embodiment, described anti-slip tank 7 is helicla flute, not only easy to process, and the circular flute length of the Length Ratio of the groove forming on each key tooth, and non-skid property is better.
In the present embodiment, described elastomer 3 comprises along axially setting the multiple curved tinsel along rigid frame 1 axially-aligned of rigid frame 1, tinsel is along the cylinder bending at rigid frame 1 place, utilize the effect of curved elastic recovering force wiry that vascular lesion position is shunk, can also adapt to preferably shape of blood vessel.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (7)
1. a blood vessel restraint device, is characterized in that: the rigid frame that comprises hollow columnar; A radially side of described rigid frame disconnects; Also comprise and be fixed on the elastomer that forms semi-ring nested structure between described rigid frame frame.
2. blood vessel restraint device according to claim 1, is characterized in that: described rigid frame comprises and is the first hinged framework of hinge shape and the second framework.
3. blood vessel restraint device according to claim 2, is characterized in that: described rigid frame also comprises for by the first framework and the fixing lockable mechanism of the second framework locking.
4. blood vessel restraint device according to claim 3, is characterized in that: described lockable mechanism comprises along the lock pin of the first framework and the setting of the second framework hinge; The corresponding lock pin of described the first framework is provided with the first locking hole; The corresponding lock pin of the second framework is provided with the second locking hole; Described lock pin is spline pin, and described the first locking hole and the second locking hole are to close with spline pin rodent the splined hole of locking.
5. blood vessel restraint device according to claim 4, is characterized in that: on described lock pin, each key crest top land is provided with around lock pin and is circumferentially with anti-slip tank.
6. blood vessel restraint device according to claim 5, is characterized in that: described anti-slip tank is helicla flute.
7. according to the blood vessel restraint device described in the arbitrary claim of claim 1-6, it is characterized in that: described elastomer comprises along axially setting the multiple curved tinsel along rigid frame axially-aligned of rigid frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031957.2A CN103784179B (en) | 2014-01-22 | 2014-01-22 | Blood vessel restraint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031957.2A CN103784179B (en) | 2014-01-22 | 2014-01-22 | Blood vessel restraint device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103784179A true CN103784179A (en) | 2014-05-14 |
| CN103784179B CN103784179B (en) | 2016-05-18 |
Family
ID=50660539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410031957.2A Expired - Fee Related CN103784179B (en) | 2014-01-22 | 2014-01-22 | Blood vessel restraint device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103784179B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2218111C1 (en) * | 2002-07-17 | 2003-12-10 | Латыпов Виктор Равильевич | Device for obturating renal blood vessels |
| US20040138684A1 (en) * | 2003-01-15 | 2004-07-15 | The University Of Miami | Venous anti-reflux implant |
| US20070213805A1 (en) * | 2006-03-09 | 2007-09-13 | Cook Incorporated | Expandable stent grafts and methods of use thereof |
| CN101965162A (en) * | 2007-12-15 | 2011-02-02 | 恩多斯潘有限公司 | Extra-vascular wrapping for treating aneurysmatic aorta in conjunction with endovascular stent-graft and methods thereof |
| CN102258391A (en) * | 2010-05-28 | 2011-11-30 | 微创医疗器械(上海)有限公司 | External hoop for blood vessels |
-
2014
- 2014-01-22 CN CN201410031957.2A patent/CN103784179B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2218111C1 (en) * | 2002-07-17 | 2003-12-10 | Латыпов Виктор Равильевич | Device for obturating renal blood vessels |
| US20040138684A1 (en) * | 2003-01-15 | 2004-07-15 | The University Of Miami | Venous anti-reflux implant |
| US20070213805A1 (en) * | 2006-03-09 | 2007-09-13 | Cook Incorporated | Expandable stent grafts and methods of use thereof |
| CN101965162A (en) * | 2007-12-15 | 2011-02-02 | 恩多斯潘有限公司 | Extra-vascular wrapping for treating aneurysmatic aorta in conjunction with endovascular stent-graft and methods thereof |
| CN102258391A (en) * | 2010-05-28 | 2011-11-30 | 微创医疗器械(上海)有限公司 | External hoop for blood vessels |
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| Publication number | Publication date |
|---|---|
| CN103784179B (en) | 2016-05-18 |
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Effective date of registration: 20181026 Address after: 510640 2414-2416 of the main building 371, five mountain road, Tianhe District, Guangzhou, Guangdong. Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 408000 No. 2, Gao sun Tang Road, Fuling District, Chongqing. Patentee before: Li Baotong |
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| TR01 | Transfer of patent right | ||
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Effective date of registration: 20181102 Address after: 233000 Anhui Bengbu City Huaguang Avenue Jiahe residential area independent commercial building (two floor) Patentee after: Bengbu Zhongzhi Intellectual Property Operation Co.,Ltd. Address before: 510640 2414-2416 of the main building 371, five mountain road, Tianhe District, Guangzhou, Guangdong. Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 |