CN100589767C - External brace for recovering venous valve function through tracting joint of venous valves - Google Patents
External brace for recovering venous valve function through tracting joint of venous valves Download PDFInfo
- Publication number
- CN100589767C CN100589767C CN200510007614A CN200510007614A CN100589767C CN 100589767 C CN100589767 C CN 100589767C CN 200510007614 A CN200510007614 A CN 200510007614A CN 200510007614 A CN200510007614 A CN 200510007614A CN 100589767 C CN100589767 C CN 100589767C
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- frame type
- type shell
- blood vessel
- vein blood
- rear portion
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Abstract
The present invention relates to an exterior support which can be implanted into periphery of venous blood vessel along its length and is used for restoring shell valve function of venous blood vessel. It includes front and rear arcuate frame external shells on a thin-long material, the rear frame external shell includes two branches of sharp-pointed thin-long material, every frame external shellincludes the correspondent drawing side with longitudinal straight-line side branch-drawing device, and two frame external shells are mutually parallelly arranged. Said invention also provides the concrete application method of said exterior support for restoring function of venous valve by drawing mutually combined wall of venous valve.
Description
Technical field
The present invention relates to a kind of device that is used to recover the function of venous valve.
Background technology
The device that is common to the function of recovering venous valve is disclosed among the international application No.WO97/40755 (inventor ZUKOWSKI) that published on November 6th, 1997, the title of this international application is " Device forRestoring Competence to Venous Valves (recovering the device of the function of venous valve) ", and it is immediate prior art.
The device of ZUKOWSKI is based on such discovery: on the plane of the composition surface of the incompetent lax valve of vein blood vessel, for laterally extending the lobe point, the external force that is applied on this vein blood vessel flattens vein blood vessel, absorb the lax of them thus and they are engaged, recover the function of vein blood vessel.
The device of this ZUKOWSKI is characterised in that the support that applies corrective pressure to incompetent vein blood vessel.
ZUKOWSKI discloses the support with a pair of relative compressed septum, and this is identical and be rectangle substantially to barrier film.This barrier film can have ellipse or bow-shaped structural, perhaps can be concordant with the end of bending; They link together by hinge portion in the middle of integrally formed, when support places around the valve, middle hinge portion extends substantially diametrically with respect to vein blood vessel, and is placed near the comissure of the lobe point contact on the relative wall that is attached to vein blood vessel; Hinged width has determined to impose on by support the pressure of valve.This device is sewed up the free margins of two rectangular member and is implanted.Sew up and carry out and hinged identical functions, by their degree of tightening, they can be adjusted in the pressure of the device on the wall of vein.
There is relevant problem in the device of ZUKOWSKI.
It is two compressed septum on successive surface that the ZUKOWSKI device has.Because this seriality, for implanting it, need from around tissue and remove the rear wall of vein blood vessel fully from all final lateral vein blood vessels.In addition, for the same reason, treatment is being positioned at because the incompetent valve of the meet of another vein blood vessel that the asymmetry of meet itself and the transmutability in dissection cause is unaccommodated.
In addition, use the device of ZUKOWSKI, increase in the time of the diameter itself that in fact can not guarantee to be bonded with each other from the compression of outside.The defective of the device of ZUKOWSKI is that its compressed action is also unreliable aspect its remedial action.
In fact, uncertainly be: pressure was determined the increase of the diameter that the side-side direction of vein blood vessel valve is bonded with each other forcibly before and after the diameter of the front and back by reducing vein blood vessel applied, because, actually, in vivo: depend in contraction from the normal appearance of the muscle parts of the process medium-sized vein wall of surrounding tissue shell excision vein blood vessel; Depend on blood pressure in the vein blood vessel the inside; And depend on that vein blood vessel is not in its end-state in the drug-induced contraction of the muscle parts of wall of vein, and in fact prove the hypothesis under the spirit of the device of ZUKOWSKI, so its orientation ratio difficulty and may be incorrect.
Therefore in addition, consequential venospasm has reduced the diameter of peripheral vessels after Surgery Treatment, and two lobe points can be not best and be put, and therefore can not check the function of valve in surgery intra-operative (promptly in the process of operation).
Summary of the invention
An object of the present invention is to provide a kind of device that recovers the function of venous valve, this device solves above-mentioned problem.
This purpose realizes by external support of the present invention.
Key difference between the device of support of the present invention and ZUKOWSKI is as follows: (a) traction action is passed through in support of the present invention, and is opposite with compression; (b) it is the device that forms as frame type shell, and is opposite with successive barrier film; (c) its real working portion is the stitching that the surgeon carries out in its tractive work, and is opposite with the device of the ZUKOWSKI that only requires sealing to sew up.
Particularly, the invention provides a kind of external support of the effect that applies of the valve function that is used to recover vein blood vessel, this external support longitudinally promptly along the length of vein blood vessel implant vein blood vessel (V) around; Be included in two arc frame type shells that have vertical side on the elongated material; Described frame type shell is respectively rear portion frame type shell (1) and anterior frame type shell (1A); Described rear portion frame type shell (1) comprises two branches (2,3) that are used for expediently rear portion frame type shell being inserted into by two paths of being prepared by the surgeon the described elongated material of the sharp shape after the rear wall of vein blood vessel (V); Each frame type shell (1,1A) comprise have vertical straight sides tractive branch unit (5,5 '; 5A, 5 ' A) corresponding tractive side; Described two frame type shells (1,1A) by they vertical side around vein blood vessel (V) as one man each other and put; Described tractive side is intended to by means of surgical stapling (s1, s2) wall (iw1 that is bonded with each other by relative valve, iw2) join vein blood vessel (V) to make the diameter expansion that is bonded with each other of vein blood vessel by tractive, (c1, c2) venous valve that absorbing function is incomplete is lax so that by its lobe point of extension.
A kind of EXS method of making by the present invention's instruction also is a theme of the present invention.This method comprises the thin slice or the tubular shell material of cutting plastic material or metal.This method also comprises mould injection molding material material.
EXS advantage of the present invention is that it can insertion after the very simple cutting of rear portion or dark access tunnel.The surgeon only must prepare two paths, and needn't cut vein blood vessel on its whole length.Branch by the easy insertion of its elongated material can insert it through this passage.Because cutting is less than the device of ZUKOWSKI, therefore relevant spasm is also little.This has encouraged the importance of known " milking operation method " (milking manoeuvre), and " milking operation method " is unreliable or unfeasible under the situation of spasm.
Description of drawings
Can understand the present invention best based on detailed description hereinafter to the non-restrictive example of the present invention that provides in the accompanying drawings.
Fig. 1 and Figure 1A are respectively in a preferred embodiment the view at the front and rear frame type shell of external support housing of the present invention;
Fig. 2 is two the frame type shells of juxtaposed each other accompanying drawing 1 and 1A under assembling condition, determined to be used for wherein to receive vein blood vessel the ellipticity tunnel internal and
Fig. 3 schematically shows in case the tractive that engages the wall that is bonded with each other by its lobe by means of external support of the present invention by stitching thread by the identical wall that is bonded with each other returns to the sketch map of vein blood vessel of its functional status.
The specific embodiment
External support comprises the arc frame type shell of two of elongated material, is respectively rear portion or dark frame type shell 1 (referring to accompanying drawing 1) and anterior or shallow frame type shell 1A (referring to accompanying drawing 2).External support be used to longitudinally the length of vein blood vessel (promptly along) be implanted in vein blood vessel around.
Two frame type shells are used to carry out different functions.
Rear portion frame type shell 1 comprises the near-end of elongated material and the branch of far-end sharp shape, so that rear portion frame type shell is inserted into after the rear wall of vein blood vessel easily, and do not need the colligation of final side vein blood vessel by two paths of preparing by the surgeon.According to the branch of the easy insertion of the preferred embodiment that is described in the drawings be have eyelet 2 ', the near-end of the elongated material on the summit of 3 ' shape and the narrow elbow 2,3 of far-end. Narrow elbow 2,3 continues at the center each other by big central elbow 4.
Anterior frame type shell 1A has the identical structure with rear portion frame type shell 1, has the near-end elbow 2A of eyelet 2 ' A; Far-end elbow 3A and center elbow 4A with eyelet 3 ' A, but near-end and far-end elbow needn't have sharp-pointed shape.
Two frame type shells have the corresponding vertically side of the arcuation that is intended to constitute the tractive side.This tractive side comprises the corresponding vertically straight sides tractive branch of elongated material.According to as preferred embodiment described in accompanying drawing 1 and the 1A, tractive branch is the free-ended branch 5,5 ' and be used for 5A and the 5 ' A of anterior frame type shell 1A of rear portion frame type shell 1.Free-ended tractive branch 5,5A; 5 ', 5 ' A is respectively as the 2p of near-end branch; The far-end branch 3d of 2Ap and near-end 2; 3Ad and the far-end 3 that is respectively the frame type shell of rear portion 1 and anterior 1A, the extendible portion of 3A elbow takes place.Center elbow 4 is on the plane of arcual vertical tractive side of 4A arrival frame type shell.The ramose free-ended structure of tractive is used for given better vertical flexible extent of elasticity.
Two frame type shells have determined wherein to receive the elliptoid tunnel of vein blood vessel V around the vein blood vessel of handling by their arciform side each other and put-rotate each other their concave surface-with assembling as accompanying drawing 3 described supports.The frame type shell S of assembling is shown in Figure 2.In this preferred embodiment, by following process assembled frame type shell: the free-ended tractive branch 5 that makes rear portion frame type shell 1,5 ' eyelet 2 ' A by anterior frame type shell 1A, 3 ' A, and the free-ended tractive 5A of branch that makes anterior frame type shell 1A, the eyelet 2 of 5 ' A by rear portion frame type shell 1 ', 3 '.Therefore eyelet has formed the device of the mutual reversible mechanical connection of frame type shell.
External support has the 2p by near-end branch, the proximal part that 2Ap forms and by far-end branch 3d, the distal portions that 3Ad forms and their intermediary cores.The front and back diameter that supports can assign to near-end from central division and distal portions increases, and with the normal anatomy shape of simulating nature valve, this hemodynamics that helps valve is closed.
The 2p of near-end branch of rear portion frame type shell 1 can be outwardly arc of concave surface, and as shown in Figure 1, and the 2Ap of near-end branch of anterior frame type shell 1A can be outwardly arc of convex surface, shown in accompanying drawing 1A.Like this, in case by frame type shell 1, the external support as shown in Figure 2 of 1A assembling has the oral area 2p of inclination, and 2Ap, itself adapt to converging of on its proximal part two vein blood vessels.
With reference to the accompanying drawings 3, external support of the present invention is installed in the wall iw1 that is bonded with each other by relative valve respectively, iw2 be installed in two frame type shells vertical tractive side vein blood vessel V around.By absorbing by relaxing that tractive causes, it makes the recovery of the correct merger of incompetent lobe point.By very known surgical stapling s1, s2, drag is applied to the wall iw1 that is bonded with each other of venous valve ball, iw2, and the diameter that the edge is bonded with each other (therefore along lobe point c1, c2) applies drag so that it expands, has extended the lobe point and absorbed relaxing of they.Surgical stapling s1, s2 engage respectively tractive branch 5,5 '; 5A ' A is to face toward the wall iw1 that is bonded with each other, iw2.Surgical stapling also can engages male reaches the center elbow 4 of the frame type shell on vertical tractive side of frame type shell, 4A.In accompanying drawing 3, under the action of support of the present invention, has the tractive effect of the support of the present invention that the centrifugal ellipticity representative of the vein blood vessel V of circular cross-section once engages by the stitching of the identical wall that is bonded with each other usually.
A frame type shell or two frame type shells can have the hook that the wall that is bonded with each other by relative valve is used to engage wall of vein in the horizontal, to make the diameter expansion that is bonded with each other by tractive.This hook is carried out and is sewed up identical functions, and promptly they produce tractive.
As a kind of variant embodiment, frame type shell can be integral with one another, is connected to each other by hinge by its vertical side.
Elongated material can be to have good flexible and elastic metal wire, for example
Perhaps the steel of medical grade is such as AISI 316.
Yet elongated material also can be the plastic material of biological example compatibility, for example tetrafluoroethene such as
, polypropylene, polyethylene.
According to the present invention, design a kind of EXS method made from the present invention's instruction of integrated form, comprise integrated manufacturing step, such as the thin slice or the tube material that cut plastic material for example or metal, such as the laser cut metal paper tinsel; Perhaps such as mould injection molding material material.
In this method, manufacture and design step with the hook of the integrated tractive of frame type shell action.
In this method, when being begun by sheeting, the design folding flake material is to form vertically hinged step.
When beginning, tube material is carried out suitable shaping corresponding to final finally arc, the ellipsoidal shape that supports by tube material.
Disclose the present invention with reference to specific embodiments of the invention, still it should be understood that under the prerequisite that does not break away from protection scope of the present invention and can make modification, protection scope of the present invention is only by additional claim restriction.
Claims (9)
1. the external support of the effect that applies of a valve function that is used to recover vein blood vessel, this external support longitudinally promptly along the length of vein blood vessel implant vein blood vessel (V) around; Be included in two arc frame type shells that have vertical side on the elongated material; Described frame type shell is respectively rear portion frame type shell (1) and anterior frame type shell (1A); Described rear portion frame type shell (1) comprises two branches (2,3) that are used for expediently rear portion frame type shell being inserted into by two paths of being prepared by the surgeon the described elongated material of the sharp shape after the rear wall of vein blood vessel (V); Each frame type shell (1,1A) comprise have vertical straight sides tractive branch unit (5,5 '; 5A, 5 ' A) corresponding tractive side; Described two frame type shells (1,1A) by they vertical side around vein blood vessel (V) as one man each other and put; Described tractive side is intended to by means of surgical stapling (s1, s2) wall (iw1 that is bonded with each other by relative valve, iw2) join vein blood vessel (V) to make the diameter expansion that is bonded with each other of vein blood vessel by tractive, (c1, c2) venous valve that absorbing function is incomplete is lax so that by its lobe point of extension.
2. according to the external support of claim 1, wherein said rear portion frame type shell and anterior frame type shell have the relative wall that is bonded with each other by rear portion frame type shell and anterior frame type shell and engage the hook device of vein blood vessel with the diameter expansion that is bonded with each other that makes rear portion frame type shell and anterior frame type shell by tractive.
3. according to the external support of claim 1 or 2, wherein said rear portion frame type shell and anterior frame type shell (1,1A) separated from one another, and around passing through surgical stapling (s1, s2) vein blood vessel of Chu Liing (V) can be by combination with one another.
4. according to the external support of claim 3, wherein said two frame type shells have reciprocal reversible mechanical connecting device (2 ', 3 '; 2 ' A, 3 ' A).
5. according to the external support of claim 1 or 2, wherein said two frame type shells are integral with one another, and are connected to each other by hinge means by vertical side of described two frame type shells.
6. according to the external support of claim 1, the proximal end of wherein said rear portion frame type shell (1) part (2p) is outwardly arc of concave surface, and the proximal end of the correspondence of described anterior frame type shell (1A) part (2Ap) is outwardly arc of convex surface.
7. according to the external support of claim 1, wherein said elongated material is to have good flexible and elastic bio-compatible material, selects from metal and plastics.
8. an EXS method of making claim 5 comprises the thin slice/tubular shell material that cuts plastic material or metal.
9. an EXS method of making claim 5 comprises mould injection molding material material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510007614A CN100589767C (en) | 2005-02-06 | 2005-02-06 | External brace for recovering venous valve function through tracting joint of venous valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510007614A CN100589767C (en) | 2005-02-06 | 2005-02-06 | External brace for recovering venous valve function through tracting joint of venous valves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1813638A CN1813638A (en) | 2006-08-09 |
| CN100589767C true CN100589767C (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510007614A Expired - Fee Related CN100589767C (en) | 2005-02-06 | 2005-02-06 | External brace for recovering venous valve function through tracting joint of venous valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100589767C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11484318B2 (en) | 2011-01-17 | 2022-11-01 | Artio Medical, Inc. | Expandable body device and method of use |
| KR102139383B1 (en) | 2011-01-17 | 2020-07-30 | 메타랙티브 메디컬, 인크. | Detachable metal balloon delivery device and method |
| AU2012366236B2 (en) | 2012-01-17 | 2017-10-12 | Artio Medical, Inc. | Expandable body device and method of use |
| CN103239309A (en) * | 2012-02-13 | 2013-08-14 | 桑戈门德有限责任公司 | Stent-type outer vein support for venous valve repair |
| WO2016044647A2 (en) | 2014-09-17 | 2016-03-24 | Metactive Medical, Inc. | Expandable body device and method of use |
-
2005
- 2005-02-06 CN CN200510007614A patent/CN100589767C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1813638A (en) | 2006-08-09 |
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Granted publication date: 20100217 Termination date: 20130206 |