FR2614201A1 - Device for closing and exposing vessels during surgical or anastomoses as well as closure and exposure method for a vessel using this device - Google Patents
Device for closing and exposing vessels during surgical or anastomoses as well as closure and exposure method for a vessel using this device Download PDFInfo
- Publication number
- FR2614201A1 FR2614201A1 FR8705607A FR8705607A FR2614201A1 FR 2614201 A1 FR2614201 A1 FR 2614201A1 FR 8705607 A FR8705607 A FR 8705607A FR 8705607 A FR8705607 A FR 8705607A FR 2614201 A1 FR2614201 A1 FR 2614201A1
- Authority
- FR
- France
- Prior art keywords
- vessel
- balls
- exposing
- during surgical
- anastomoses
- 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
- 230000003872 anastomosis Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title abstract description 11
- 230000003874 surgical anastomosis Effects 0.000 claims description 5
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 238000009958 sewing Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000023597 hemostasis Effects 0.000 description 3
- 240000007817 Olea europaea Species 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000003144 traumatizing effect Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 238000007631 vascular surgery Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/1204—Type of occlusion temporary occlusion
- A61B17/12045—Type of occlusion temporary occlusion double occlusion, e.g. during anastomosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
- A61B2017/1107—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis for blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
- A61B2017/1135—End-to-side connections, e.g. T- or Y-connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/12127—Double occlusion, e.g. for creating blood-free anastomosis site
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Reproductive Health (AREA)
- Surgical Instruments (AREA)
Abstract
Description
"Dispositif pour l'occlusion et l'exposition de vaisseaux
lors des anastomoses chirurgicales ainsi que procédé
d'occlusion et d'exposition d'un vaisseau à l'aide de ce
dispositif"
La présente invention se rapporte à un dispositif pour l'occlusion et l'exposition de vaisseaux lors des anastomoses chirurgicales."Device for occlusion and exposure of vessels
during surgical anastomoses and method
occluding and exposing a vessel using this
device"
The present invention relates to a device for occluding and exposing vessels during surgical anastomoses.
L'une des difficultés de la chirurgie vasculaire est de bien voir l'incision qui a été faite sur un vaisseau lorsqu'on désire réaliser une anastomose d'un autre vaisseau ou d'un tube sur celui-ci. One of the difficulties of vascular surgery is to see clearly the incision which has been made on a vessel when it is desired to make an anastomosis of another vessel or of a tube thereon.
En effet, lorsque le vaisseau a été incisé et lorsque ses parois sont molles, il se trouve souvent collabé ; la vision précise des différentes couches est fondamentale ; elle est parfois difficile, surtout si le chirurgien est gêné par un suintement de sang. Indeed, when the vessel has been incised and when its walls are soft, it is often collapsed; the precise vision of the different layers is fundamental; it is sometimes difficult, especially if the surgeon is bothered by an oozing of blood.
Pour remédier à ces inconvénients, les praticiens ont l'habitude d'utiliser des clamps qui sont des sortes de pinces servant à obturer les vaisseaux pour empêcher le sang de revenir dans la zone de l'anastomose. To overcome these drawbacks, practitioners are used to using clamps which are a kind of forceps used to seal the vessels to prevent blood from returning to the anastomosis area.
Ces procédés de clampage ne sont pas aptes à donner satisfaction étant donné qu'ils risquent de traumatiser les vaisseaux à l'endroit où leur paroi se trouve déjà fragilisée, et, provoquent leur aplatissement, créant par suite des conditions peu favorables à la couture. De plus, de tels procédés ne sont pas toujours utilisables sur des petits vaisseaux. These clamping methods are not able to give satisfaction since they risk traumatizing the vessels at the place where their wall is already weakened, and cause them to flatten, thereby creating conditions which are not very favorable for sewing. In addition, such methods are not always usable on small vessels.
La présente invention a pour but de remédier à ces inconvénients en proposant un dispositif pour l'occlusion et l'exposition de vaisseaux lors des anastomoses chirurgicales qui ne soit agressif pour les parois des vaisseaux et qui parallèlement, permette de faire l'hemostase tout en créant des conditions de nature à aider le chirurgien dans son opération ultérieure de couture. Ce procédé permet de coudre des vaisseaux non disséqués. The object of the present invention is to remedy these drawbacks by proposing a device for occluding and exposing vessels during surgical anastomoses which is not aggressive for the walls of the vessels and which, in parallel, allows hemostasis while creating conditions likely to assist the surgeon in his subsequent sewing operation. This process allows sewing of undissected vessels.
A cet effet, le dispositif conforme à l'invention est caractérisé en ce qu'il est constitué par un fil de suture serti à ses deux extrémités et portant, en sa partie centrale, deux boules dont les dimensions correspondent à celles du # aisseau sur lequel on veut faire l'anastomose. To this end, the device according to the invention is characterized in that it is constituted by a suture thread crimped at its two ends and carrying, in its central part, two balls whose dimensions correspond to those of the # aisseau on which one wants to do the anastomosis.
Le terme boule doit, bien entendu, être considéré dans un sens large et peut, tout aussi bien, s'appliquer à des sphères qu'à des volumes non angulaires de forme autre : olive ou ellipsoide par exemple. The term ball must, of course, be considered in a broad sense and can just as easily apply to spheres as to non-angular volumes of other shape: olive or ellipsoid for example.
La distance entre les boules et les dimensions de celles-ci peut, elle aussi varier dans une large mesure en fonction du "travail" à effectuer, et ce, d'autant plus que ce dispositif peut s'adapter aussi bien au domaine vasculaire que coronarien. The distance between the balls and their dimensions can also vary to a large extent depending on the "work" to be done, all the more since this device can be adapted to both the vascular and coronary.
Les boules peuvent être en matière plastique, ou en tout autre matériau pour peu qu'il soit biologiquement compatible ou inerte (métal, alliages). The balls can be made of plastic, or any other material provided that it is biologically compatible or inert (metal, alloys).
Le fil est généralement constitué par un fil de suture monobrin, tel que par exemple du monobrin 6-0. The thread is generally constituted by a single-strand suture, such as for example 6-0 single-strand.
Le mode de liaison du fil et des boules peut, lui aussi, être quelconque sans pour cela sortir du cadre de l'invention, et, par exemple être constitué par de simples noeuds ou tout autre procédé permettant une immobilisation. The mode of connection of the wire and the balls can also be arbitrary without departing from the scope of the invention, and, for example being constituted by simple knots or any other method allowing immobilization.
Selon une autre caractéristique de l'invention, le dispositif comporte au moins une dérivation constituée par un second fil de suture analogue au premier auquel il est fixé en sa partie centrale, entre les deux boules, serti à son extrémité, et portant une troisième boule analogue ou non aux deux premières. According to another characteristic of the invention, the device comprises at least one derivation constituted by a second suture thread similar to the first to which it is fixed in its central part, between the two balls, crimped at its end, and carrying a third ball analogous or not to the first two.
Cette caractéristique,qui peut donner lieu à des configurations très sophistiquées,sert à permettre d'obturer en même temps plusieurs vaisseaux ou un vaisseau et ses collatéraux. This characteristic, which can give rise to very sophisticated configurations, is used to make it possible to close several vessels at the same time or a vessel and its collaterals.
L'invention se rapporte également à un procédé d'occlusion et d'exposition d'un ou plusieurs vaisseaux. The invention also relates to a method for occluding and exposing one or more vessels.
Ce procédé est caractérisé en ce que l'on fait une incision sur le ou les vaisseaux à l'endroit où l'on veut effectuer l'anastomose, on introduit dans cette incision les boules d'un dispositif tel que décrit ci-dessus, on pique les parois du ou des vaisseaux par leur partie interne au-delà de l'incision à l'aide des extrémités serties du ou des fils de suture et on tire sur ces extrémités de manière à mettre les boules en place à l'intérieur du ou des vaisseaux. This process is characterized in that an incision is made on the vessel (s) at the place where one wishes to perform the anastomosis, the balls of a device as described above are introduced into this incision, the walls of the vessel (s) are pricked by their internal part beyond the incision using the crimped ends of the suture (s) and one pulls on these ends so as to put the balls in place inside of the vessel (s).
La mise en place des boules à l'intérieur des vaisseaux est, en fait, relativement aisée et on arrive donc, conformément à l'invention, à faire l'hémostase tout en ouvrant le vaisseau et en lui redonnant une forme cylindrique favorable pour la couture ; de plus, le procédé conforme à l'invention permet, grâce à la présence des boules à l'intérieur du vaisseau, de l'orienter de la façon la plus commode pour le praticien qui peut, ainsi, mener son anastomose de la façon la plus adéquate et la plus rapide possible et ce, en évitant tout traumatisme des vaisseaux par un clamp ou une traction quelconque. The establishment of the balls inside the vessels is, in fact, relatively easy and we therefore arrive, in accordance with the invention, to make the hemostasis while opening the vessel and giving it a favorable cylindrical shape for the sewing; moreover, the process according to the invention allows, thanks to the presence of the balls inside the vessel, to orient it in the most convenient way for the practitioner who can, thus, carry out his anastomosis in the as adequate and as quick as possible, avoiding any trauma to the vessels by any clamp or traction.
Les caractéristiques du dispositif ainsi que du procédé qui font l'objet de l'invention seront décrites plus en détail en se référant aux dessins annexés dans lesquels : - la figure 1 représente un dispositif à deux boules
conforme à l'invention, - la figure 2 représente un dispositif à trois boules, - la figure 3 montre, à échelle agrandie, la mise en
place du dispositif représenté sur la figure 1 à
l'intérieur d'un vaisseau.The characteristics of the device as well as of the method which are the subject of the invention will be described in more detail with reference to the accompanying drawings in which: - Figure 1 shows a device with two balls
according to the invention, - Figure 2 shows a device with three balls, - Figure 3 shows, on an enlarged scale, the implementation
place of the device shown in Figure 1 to
inside a ship.
Selon la figure 1, le dispositif pour l'occlusion et l'exposition de vaisseaux lors de l'anastomose chirurgicale est constitué par un fil de suture 1 qui est serti à ses deux extrémités 2, 2' et porte, en sa partie centrale, deux boules 3, 3' dont les dimensions correspondent à celles du vaisseau sur lequel on veut faire l'anastomose. According to FIG. 1, the device for occluding and exposing vessels during surgical anastomosis consists of a suture wire 1 which is crimped at its two ends 2, 2 ′ and carries, in its central part, two balls 3, 3 'whose dimensions correspond to those of the vessel on which we want to make the anastomosis.
Les boules 3, 3' qui peuvent être sphériques mais aussi en forme d'olive ou d'éllipsoide sont en un matériau quelconque biologiquement compatible et sont reliées au fil 1 au moyen de noeuds 4. The balls 3, 3 ′ which can be spherical but also in the form of an olive or an elipsoid are made of any biologically compatible material and are connected to the wire 1 by means of nodes 4.
Le fil 1 est le plus souvent constitué par un fil de suture mono-brin notamment un fil 6-0. La distance d entre les boules 3 et 3' est fonction de l'opération que l'on désire réaliser. The thread 1 is most often made up of a single-strand suture, in particular a 6-0 thread. The distance d between the balls 3 and 3 'depends on the operation that one wishes to carry out.
Selon la figure 2, le fil 1 porte, en sa partie centrale 10 située entre les deux boules 3, 3', un second fil 1' formant une dérivation ; ce fil 1' est lui aussi muni d'une boule 3" analogue aux boules 3 et 3', fixée au moyen de noeuds 4 et, est, par ailleurs, serti à son extrémité 2". On obtient, ainsi, une configuration triangulaire permettant d'obturer à la fois un vaisseau et un vaisseau collatéral. On pourrait prévoir des géométries plus compliquées portant plusieurs dérivations sans pour cela sortir du cadre de l'invention. According to Figure 2, the wire 1 carries, in its central part 10 located between the two balls 3, 3 ', a second wire 1' forming a bypass; this wire 1 'is also provided with a ball 3 "similar to the balls 3 and 3', fixed by means of knots 4 and, is, moreover, crimped at its end 2". We thus obtain a triangular configuration making it possible to close both a vessel and a collateral vessel. We could provide more complicated geometries carrying several branches without departing from the scope of the invention.
Dans tous les cas, le diamètre des boules 3, 3', 3" est, comme la distance d entre celles-ci, fonction du travail à effectuer ; en chirurgie c9rona- rienne, les calibres des billes les plus couramment utilisés sont de 1 mm, 1,5 mm et 2 mm ; ces dimensions croissent notablement dans le domaine de la chirurgie va scul aire. In all cases, the diameter of the balls 3, 3 ', 3 "is, like the distance d between them, a function of the work to be carried out; in ceremonial surgery, the sizes of the most commonly used balls are 1 mm, 1.5 mm and 2 mm; these dimensions increase notably in the field of surgical surgery.
Selon la figure 3, le dispositif susmentionné est destiné à être utilisé lorsque l'on veut réaliser une anastomose d'un vaisseau ou d'un tube B représenté schématiquement sur un vaisseau A. According to FIG. 3, the above-mentioned device is intended to be used when it is desired to perform an anastomosis of a vessel or of a tube B shown diagrammatically on a vessel A.
Dans ce but, on commence à faire sur le vaisseau A une incision 5 à l'endroit où l'on veut réaliser l'anastomose puis, on introduit par celle-ci selon la flèche I le dispositif constitué par le fil de suture 1 portant les deux boules 3 et 3' avant de piquer les parois du vaisseau A aux points 6 et 6' au delà de l'incision 5 par les extrémités serties 2 et 2' du fil 1. Il suffit alors de tirer selon les flèches Il sur ces extrémités pour arriver à placer correctement les boules 3 et 3' dans le vaisseau A de manière à faire l'hémostase, c'est-à-dire à empêcher le sang de revenir dans la zone de l'anastomose. Le sang représenté en hachurés sur la figure 3, reste ainsi en arrière des boules 3 et 3', et, le chirurgien se trouve dans des conditions optimales pour effectuer sa couture, d'autant plus que la présence des boules 3 et 3' permet d'ouvrir -le vaisseau A pour lui donner une forme cylindrique et de l'orienter de la façon la plus commode pour l'opérateur. For this purpose, one begins to make on the vessel A an incision 5 at the place where one wishes to make the anastomosis then, one introduces by this one according to arrow I the device constituted by the suture thread 1 carrying the two balls 3 and 3 'before stitching the walls of the vessel A at points 6 and 6' beyond the incision 5 by the crimped ends 2 and 2 'of the wire 1. It then suffices to pull according to the arrows Il on these ends to arrive to correctly place the balls 3 and 3 'in the vessel A so as to make the hemostasis, that is to say to prevent the blood from returning to the area of the anastomosis. The blood represented in hatched lines in FIG. 3 thus remains behind the balls 3 and 3 ′, and the surgeon is in optimal conditions for sewing, especially since the presence of the balls 3 and 3 ′ allows to open the vessel A to give it a cylindrical shape and to orient it in the most convenient way for the operator.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8705607A FR2614201B1 (en) | 1987-04-21 | 1987-04-21 | DEVICE FOR THE OCCLUSION AND EXPOSURE OF VESSELS DURING SURGICAL ANASTOMOSES AS WELL AS A METHOD OF OCCLUSION AND EXPOSURE OF A VESSEL USING THIS DEVICE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8705607A FR2614201B1 (en) | 1987-04-21 | 1987-04-21 | DEVICE FOR THE OCCLUSION AND EXPOSURE OF VESSELS DURING SURGICAL ANASTOMOSES AS WELL AS A METHOD OF OCCLUSION AND EXPOSURE OF A VESSEL USING THIS DEVICE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2614201A1 true FR2614201A1 (en) | 1988-10-28 |
| FR2614201B1 FR2614201B1 (en) | 1990-07-06 |
Family
ID=9350321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8705607A Expired - Lifetime FR2614201B1 (en) | 1987-04-21 | 1987-04-21 | DEVICE FOR THE OCCLUSION AND EXPOSURE OF VESSELS DURING SURGICAL ANASTOMOSES AS WELL AS A METHOD OF OCCLUSION AND EXPOSURE OF A VESSEL USING THIS DEVICE. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2614201B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999015088A1 (en) * | 1997-09-26 | 1999-04-01 | Duke University | Perfusion-occlusion catheter and methods |
| EP0928161A1 (en) * | 1996-07-16 | 1999-07-14 | Heartport, Inc. | Coronary shunt and method of use |
| CN107595343A (en) * | 2017-10-20 | 2018-01-19 | 王刚 | Previous anastomotic building mortion is aided in a kind of thin vessels Coronary Artery Bypass |
| CN113693744A (en) * | 2021-08-30 | 2021-11-26 | 余翔 | Blood vessel support ring and blood vessel support ring assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2387635A1 (en) * | 1977-04-20 | 1978-11-17 | Medical Eng Corp | BLOOD VESSEL OCCLUSION DEVICE, SUITABLE FOR USE IN ANASTOMOSIS |
| US4286598A (en) * | 1978-11-06 | 1981-09-01 | Kapitanov Nikolai N | Forceps for isolation of part of blood vessel during anastomosis |
| GB2164562A (en) * | 1984-09-21 | 1986-03-26 | Colin Campbell Mackenzie | Device to facilitate reconnection of tubular vessels in a body |
-
1987
- 1987-04-21 FR FR8705607A patent/FR2614201B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2387635A1 (en) * | 1977-04-20 | 1978-11-17 | Medical Eng Corp | BLOOD VESSEL OCCLUSION DEVICE, SUITABLE FOR USE IN ANASTOMOSIS |
| US4286598A (en) * | 1978-11-06 | 1981-09-01 | Kapitanov Nikolai N | Forceps for isolation of part of blood vessel during anastomosis |
| GB2164562A (en) * | 1984-09-21 | 1986-03-26 | Colin Campbell Mackenzie | Device to facilitate reconnection of tubular vessels in a body |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0928161A1 (en) * | 1996-07-16 | 1999-07-14 | Heartport, Inc. | Coronary shunt and method of use |
| EP0928161A4 (en) * | 1996-07-16 | 2000-12-06 | Heartport Inc | Coronary shunt and method of use |
| WO1999015088A1 (en) * | 1997-09-26 | 1999-04-01 | Duke University | Perfusion-occlusion catheter and methods |
| US6165196A (en) * | 1997-09-26 | 2000-12-26 | Corvascular Surgical Systems, Inc. | Perfusion-occlusion apparatus |
| CN107595343A (en) * | 2017-10-20 | 2018-01-19 | 王刚 | Previous anastomotic building mortion is aided in a kind of thin vessels Coronary Artery Bypass |
| CN113693744A (en) * | 2021-08-30 | 2021-11-26 | 余翔 | Blood vessel support ring and blood vessel support ring assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2614201B1 (en) | 1990-07-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| CL | Concession to grant licences | ||
| ST | Notification of lapse |