CN218220393U - Multi-branch artificial blood vessel - Google Patents
Multi-branch artificial blood vessel Download PDFInfo
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- CN218220393U CN218220393U CN202221172465.1U CN202221172465U CN218220393U CN 218220393 U CN218220393 U CN 218220393U CN 202221172465 U CN202221172465 U CN 202221172465U CN 218220393 U CN218220393 U CN 218220393U
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Abstract
The present disclosure discloses a multi-branch artificial blood vessel, comprising: the artificial blood vessel comprises an artificial blood vessel trunk (1), an artificial blood vessel grade 1 branch (2) at one side of the trunk, and a first branch blood vessel (3) at the other side of the trunk; the bottom end of the artificial blood vessel grade 1 branch (2) is connected with an artificial blood vessel main body, and the top end of the artificial blood vessel grade 1 branch is respectively connected with a second branch blood vessel (4) and a third branch blood vessel (5). The novel artificial blood vessel disclosed by the disclosure can reduce blood circulation interruption time, is more friendly to operation, and can reduce potential hazards and risks.
Description
Technical Field
The disclosure belongs to the field of medical equipment, and particularly relates to a multi-branch artificial blood vessel.
Background
In the aortic surgery of the prior art, a doctor needs to use an artificial blood vessel, such as a four-branch artificial blood vessel, to replace a diseased blood vessel and perform anastomosis of the artificial blood vessel with a heart, three brachiocephalic vessels, a descending aorta, etc.
The problem is that the existing four-branch artificial blood vessel often cuts off the original ascending aorta and aortic arch together before replacing the diseased blood vessel, which requires interruption of the lower body circulation and the myocardial circulation for a certain time, and even when the low temperature technology is matched, the life body is still damaged at a certain rate.
Accordingly, there is a need in the art to develop an artificial blood vessel that reduces the time to blood circulation interruption, is more friendly to the procedure, and reduces potential hazards and risks.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the present disclosure provides a multi-branch artificial blood vessel, which is characterized in that:
the artificial blood vessel includes: the artificial blood vessel comprises an artificial blood vessel trunk (1), an artificial blood vessel grade 1 branch (2) at one side of the trunk, and a first branch blood vessel (3) at the other side of the trunk;
the bottom end of the artificial blood vessel grade 1 branch (2) is connected with an artificial blood vessel main body, and the top end of the artificial blood vessel grade 1 branch is respectively connected with a second branch blood vessel (4) and a third branch blood vessel (5).
In a preferred embodiment of the method of the invention,
the included angle alpha between the artificial blood vessel level 1 branch (2) and the artificial blood vessel main body (1) is adjustable.
In a preferred embodiment of the method of the invention,
the included angle beta between the first branch blood vessel (3) and the artificial blood vessel main body (1) is adjustable.
In a preferred embodiment of the method of the invention,
the included angle gamma between the second branch blood vessel (4) and the third branch blood vessel (5) is adjustable.
Preferably, the first and second liquid crystal materials are,
the level 1 branch (2) of the artificial blood vessel and the first branch blood vessel (3) are approximately positioned at the same position of the main trunk of the artificial blood vessel.
Preferably, the first and second liquid crystal materials are,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main part of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first upper edge is flush with the second upper edge.
Preferably, the first and second liquid crystal materials are,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main part of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first lower edge is flush with the second lower edge.
Preferably, the first and second liquid crystal materials are,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main part of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first upper edge is flush with the second upper edge.
Preferably, the first and second liquid crystal materials are,
one or more 1-grade branch knotting sites are arranged on the 1-grade branch (2) of the artificial blood vessel, and the 1-grade branch (2) of the artificial blood vessel is close to the trunk of the artificial blood vessel;
one or more main body knotting sites are also arranged on the main body (1) of the artificial blood vessel, and the position of the main body (1) of the artificial blood vessel, which is close to the 1-level branch (2) of the artificial blood vessel.
In a preferred embodiment of the method of the invention,
one or more first branch knotting sites are arranged on the first branch blood vessel (3) and at the position, close to the artificial blood vessel trunk, of the first branch blood vessel (3);
one or more main body knotting sites are also arranged on the main body (1) of the artificial blood vessel, and the position of the main body (1) of the artificial blood vessel, which is close to the first branch blood vessel (3).
The novel artificial blood vessel disclosed by the disclosure can reduce the blood circulation interruption time, is more friendly to operation so as to reduce potential harm and risk
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Figures 1 to 13C are schematic views of a prior art vascular prosthesis in a surgical application;
fig. 14A to 19 are schematic views of a novel vascular prosthesis disclosed in various embodiments of the present disclosure and its application in surgery.
Detailed Description
The present disclosure will be described in further detail with reference to fig. 1 to 19 and the embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.
The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.
When an element is referred to as being "on" or "over," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.
For descriptive purposes, the present disclosure may use spatially relative terms such as "below," in.. Below, "" above, "" upper, "" above, "" higher, "and" side (e.g., as in "side walls") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.
In order to better explain the technical effects of the artificial blood vessel of the present disclosure, referring to fig. 1 to 3, 4A to 4C, 5A to 5B, 6 to 8, 9A to 9C, 10A to 10B, 11A to 11B, 12A to 12B, and 13A to 13C, the technical problems of the bifurcated artificial blood vessel in the prior art will be described in detail.
In fig. 1, extracorporeal circulation is established via the axillary arterial cannula; in fig. 2, the right atrial cannula is established on the basis of the axillary artery cannula;
in fig. 3, the ascending aorta and aortic arch are further severed and the three brachiocephalic vessels are transected; at this time, the blood circulation related to the three brachiocephalic vessels is inevitably in an abnormal state;
in fig. 4A, a stent vessel of an appropriate type is selected and implanted into the descending aorta's true lumen via the distal ostium of the aortic arch; at this time, the blood circulation involved in the descending aorta is inevitably abnormal;
in FIG. 4B, the stent vessel of FIG. 4A is released, and FIG. 4C illustrates the released state, the purpose of the release being to expand and fit the stent vessel against the descending aorta so that the stent vessel mediates the connection of the descending aorta and the bifurcated prosthesis of FIG. 5A; it can be understood that this makes the descending aorta become the descending aorta with the stent vessel, which is the technical role of the stent vessel in fig. 4A and 4B as a special artificial blood vessel;
FIG. 5A illustrates a bifurcated vascular prosthesis having a diameter comparable to that of the stent of FIGS. 4A and 4B, selected for preparation for anastomosis with the descending aorta; at this time, it can be noticed that one side of the main body of the four-branched artificial blood vessel has three branch blood vessels, the three branch blood vessels can correspond to the three brachiocephalic vessels, and the only branch on the other side of the main body of the four-branched artificial blood vessel has other purposes, which are described in the following text;
FIG. 6 illustrates the situation after anastomosis of the distal main vessel end (i.e., the distal end of the main trunk of the prosthesis) of the bifurcated prosthesis with the descending aorta of the stented vessel shown in FIG. 4B;
in addition, combining fig. 6 and 7, it can be seen that the only branch on the other side of the quarterwave artificial blood vessel trunk is used as an artificial blood vessel perfusion branch, and is inserted into the artificial blood vessel perfusion branch by the other end of the arterial pump tube; it will be appreciated that the non-shown end of the arterial pump tube is connected to the arterial pump tube and its system; further, referring to fig. 8, it can be understood that after the connection of the arterial pump tube via the perfusion branch, the main artificial blood vessel and the descending aorta is established, in fig. 8, the circulation of the lower body is restored by the perfusion branch of the artificial blood vessel after the three branch blood vessels of the artificial blood vessel and the end of the main artificial blood vessel far from the descending aorta are clamped. This means that the bifurcated vascular prosthesis of the prior art can restore the lower body circulation only at this time, which inevitably risks damage to the living body, and that the three brachiocephalic vessels remain clamped although the lower body circulation is restored at this time.
Up to fig. 9A-9C, 1 of the three branches of the bifurcated vascular prosthesis, e.g. the medial branch, coincide with the left common carotid artery end;
further, fig. 10A illustrates that the proximal segment of the bifurcated artificial blood vessel completes proximal anastomosis at the junction of the original ascending aorta and the heart, and after the proximal anastomosis is completed, the lung is expanded, the left heart is deflated, and then the ascending aorta blocking forceps are opened to restore myocardial perfusion; at the moment, the main vessel represented by the main trunk of the four-forked artificial vessel replaces the original ascending aorta and aortic arch, and the ascending aorta and the descending aorta are communicated; FIG. 10B illustrates the situation after release of the clamp on the side of the trunk of the bifurcated prosthesis near the heart, to illustrate the open ascending aorta occlusion clamp;
FIG. 11A illustrates a bifurcated vessel on one side of the previously-described intermediate branched vessel of the bifurcated prosthesis, i.e., one of a total of three branches on one side of the main trunk of the bifurcated prosthesis, anastomosing with the left subclavian artery; FIG. 11B illustrates the anastomosis, after release of the forceps;
FIG. 12A illustrates a bifurcated vessel on the other side of the previously described mid-branch vessel of the bifurcated prosthesis, i.e., the last of the three total branches on one side of the main trunk of the bifurcated prosthesis, anastomosing a innominate artery; FIG. 12B illustrates the anastomosis, after release of the forceps; thus, the anastomosis and recovery related circulation of all three branches on one side of the main body of the four-branch artificial blood vessel and the corresponding original blood vessel are completed;
fig. 13A-13C illustrate the severing, ligation of the only perfusion branch on the other side of the bifurcated prosthesis trunk, thereby severing and ligating the perfusion branch vessel;
it can be understood that the prior art bifurcated vascular prosthesis,
in the process of operation, the ascending aorta and the aortic arch need to be cut off, three brachiocephalic vessels are intersected, then an artificial blood vessel with a proper type is selected as a special stent blood vessel, the artificial blood vessel is implanted into a descending aorta true cavity through the distal port of the aortic arch, and then the stent blood vessel is released to be expanded in the descending aorta;
further, selecting a four-forked artificial blood vessel with the diameter equivalent to that of the stent blood vessel, wherein the far end of the main blood vessel of the four-forked artificial blood vessel is anastomosed with the descending aorta with the stent blood vessel;
the other end of the arterial pump tube is inserted into a perfusion branch vessel at one side of the four-forked artificial blood vessel, then all three branch vessels at the other side of the four-forked artificial blood vessel are transected by blocking forceps, and the circulation of the lower half of the body is recovered through the perfusion branch vessels and the arterial pump tube;
further, the middle bifurcation of the three branch vessels is anastomosed with the end of the left common carotid artery; after the proximal end anastomosis is finished, expanding the lung, exhausting air from the left heart, opening ascending aorta blocking forceps, and recovering myocardial perfusion;
then, the branched blood vessel corresponding to the left subclavian artery in the three branched blood vessels is anastomosed with the left subclavian artery;
furthermore, the last bifurcation blood vessel corresponding to the innominate artery in the three branch blood vessels is anastomosed with the innominate artery;
completing anastomosis with three head-arm blood vessels;
finally, the perfused branch vessel is severed and ligated.
In summary, when the bifurcated vascular prosthesis in the prior art is used in an aortic surgery, especially when the ascending aorta and the aortic arch are required to be treated simultaneously, the circulation of the lower body cannot be recovered as soon as possible in a period of time, and the cranial vessels of the left common carotid artery, the left subclavian artery and the innominate artery cannot be recovered as soon as possible in the surgery. This means that the prior art bifurcated vascular prosthesis has a technical problem in that it cannot recover the blood circulation as quickly as possible for the application in aortic surgery.
To this end, in one embodiment, the present disclosure discloses a multi-branch vascular prosthesis, as shown in fig. 14A, wherein,
the artificial blood vessel comprises an artificial blood vessel main body (1), an artificial blood vessel grade 1 branch (2) at one side of the main body and a first branch blood vessel (3) at the other side of the main body;
the bottom end of the 1-level branch of the artificial blood vessel is connected with the main trunk of the artificial blood vessel, and the top end of the 1-level branch of the artificial blood vessel is respectively connected with the second branch blood vessel (4) and the third branch blood vessel (5).
With the above embodiment, it is possible to recover the blood circulation of the living body as soon as possible by the new multi-branch design. The application of such an artificial blood vessel in surgery is described in detail with reference to fig. 14C to 19 and an explanation thereof.
In one embodiment of the present invention,
2 pipelines extend out of the top end of the 1-level branch of the artificial blood vessel, and the 2 pipelines form a second branch blood vessel (4) and a third branch blood vessel (5) respectively.
In one embodiment of the present invention,
the diameter of the artificial blood vessel trunk is larger than that of the 1-level branch of the artificial blood vessel, and the diameter of the 1-level branch (2) of the artificial blood vessel is larger than that of the first branch blood vessel;
the length of the grade 1 branch (2) of the artificial blood vessel is less than that of the first branch (3).
In one embodiment of the method of manufacturing the optical fiber,
the length of the grade 1 branch (2) of the artificial blood vessel is less than that of the first branch blood vessel (3).
The above length refers to the default length for factory shipment, as the trunk or associated branches may be cut short during surgery, etc. The artificial blood vessel comprises an artificial blood vessel main body (1), an artificial blood vessel grade 1 branch (2), a second branch blood vessel (4) and a third branch blood vessel (5), wherein the artificial blood vessel main body, the artificial blood vessel grade 1 branch, the second branch blood vessel and the third branch blood vessel are in a communication relation; the artificial blood vessel main body (1) and the first branch blood vessel (3) are communicated.
Fig. 14B illustrates another embodiment of the novel vascular prosthesis disclosed in the present disclosure.
Regarding the above-mentioned artificial blood vessel disclosed in the present disclosure, the excellence of the technical effect thereof needs to be described by the following exemplified aortic surgical procedure:
see fig. 14C for an illustration:
operation step 1:
ascending aorta proximal anastomosis stage:
after the anesthesia is proper, the right femoral artery and the axillary artery are dissociated for standby by a conventional disinfection and drape;
opening chest in the middle, and exposing aortic arch and head and arm blood vessels;
heparinizing, establishing extracorporeal circulation of femoral artery, axillary artery and right atrium cannula, and cooling to 32 ℃ for protection;
using two vascular blocking forceps A and B to clamp the aortic arch part between the proximal end of the innominate artery and the left common carotid artery respectively; wherein C represents an extracorporeal circulation axillary artery cannula, which is firstly clamped by A in the current illustration state, and the right subclavian artery (axillary artery) IV 'and the right common carotid artery III' are communicated with C; the left common carotid artery III and the left subclavian artery IV are still communicated with the descending aorta;
cutting the ascending aorta, carefully cleaning thrombus, cooling ice debris on the surface of the heart, and perfusing blood-containing jump stopping liquid at the openings of the left and right coronary arteries;
after the heart is in good arrest, the proximal end of the ascending aorta is trimmed, the artificial blood vessel of the disclosure with the proper model is selected according to the size of the aorta of a patient, the trunk of the artificial blood vessel is trimmed to the proper length, and the proximal end (1 a) of the trunk of the artificial blood vessel is matched with the root (I) of the aorta to form I-1a.
Further, see fig. 15 for a schematic:
surgical step 2-ascending aorta distal anastomosis:
the far-end (1B) of the artificial blood vessel trunk is anastomosed with the trimmed aortic arch near-heart end (Va) to form Va-1B, the air is fully exhausted, the blood vessel blocking forceps (B) are opened, the heart jumps and slowly warms.
It is obvious that the artificial blood vessel disclosed in the present disclosure can make the heart rebound and slowly rewet through the above 2 operation steps, which means that the circulation between the heart and the descending aorta has already started to be normal. This is particularly so that the prosthesis disclosed in this disclosure begins lower body circulation earlier than the bifurcated prosthesis exemplified in the prior art.
Further, see fig. 16 for a schematic:
operation step 3-artificial blood vessel angle adjustment:
during the rewarming period, the included angle alpha between the primary branch (2) and the main trunk and the included angle beta between the first branch blood vessel (3) and the main trunk are adjusted through the knotting site of the outer wall of the artificial blood vessel according to the position and the trend of the head and arm blood vessels of the patient. The k1-a1 and k1-a2 sites on the main trunk (1) of the artificial blood vessel are respectively knotted and connected with the k2-1 and k2-2 sites of the first-level branch (2) by silk threads, and the included angle alpha is adjusted, so that the far end of the third branch blood vessel (5) faces the far end of the left common carotid artery as far as possible and is ready to be anastomosed with the left common carotid artery. And then knotting and connecting the k1-b1 site on the main trunk (1) and the k3-1 site on the branch (3), and adjusting the beta included angle to enable the far end of the branch blood vessel (3) to face the far end of the left subclavian artery as far as possible to prepare for anastomosis with the left subclavian artery.
Further, see fig. 17 for a schematic:
operation step 4-left neck total and left subclavian anastomosis:
clamping and cutting off the proximal end (IIIa) of the left common carotid artery, trimming the third branch vessel (5) to a proper length, and anastomosing the distal end (5 b) of the third branch vessel with the proximal end (IIIa) of the left common carotid artery to form IIIa-5b. Similarly, the left subclavian artery proximal end (IVa) is clamped and severed, the first branch vessel (3) is trimmed to length and its distal end (3 b) is anastomosed to the left subclavian artery proximal end (IVa) to form Iva-3b. By this time, circulation in the left common carotid artery and the left subclavian artery can be restored.
Further, see fig. 18 for a schematic:
operation step 5-innominate artery anastomosis:
the second branch vessel (4) is trimmed to a suitable length and the distal end (4 b) is fitted with the innominate proximal end (IIa) to form IIa-4b. Protamine neutralizes heparin, and axillary artery and femoral artery extracorporeal circulation cannulae are respectively removed to tightly stop bleeding. By this time, circulation of the innominate artery can be restored.
Further, see fig. 19 for a description of:
surgical step 6-stenting:
an interventionalist doctors makes a fluoroscopy on the descending aorta to define the lesion position, sends the stent graft into the femoral artery, the proximal end of the stent is positioned at the main trunk (1) of the artificial blood vessel and the far end of the branch bifurcation, releases the stent graft after repeatedly determining the release site, displays the good position of the stent by the second time of the aorta angiography, and removes the guide wire of the catheter after determining that no obvious internal leakage exists. Strictly stopping bleeding, placing the pericardium mediastinum for drainage, checking the gauze instrument, and closing the chest layer by layer. Fig. 19 illustrates the final stent primarily in the aortic arch V and the inner region of the descending aorta VI.
In summary, through the exemplary application of the artificial blood vessel, the artificial blood vessel disclosed by the present disclosure obviously overcomes the technical problem that the artificial blood vessel in the prior art cannot restore the relevant blood circulation as soon as possible.
In another embodiment of the present invention, the substrate is,
the included angle alpha between the artificial blood vessel level 1 branch (2) and the artificial blood vessel main body (1) is adjustable. Therefore, the anastomotic angle of any one of the second branch blood vessel (4) and the third branch blood vessel (5) and the corresponding original blood vessel can be adjusted when the method is applied to an operation.
In another embodiment of the present invention, the substrate is,
the included angle beta between the first branch blood vessel (3) and the artificial blood vessel main body (1) is adjustable. Thus, the anastomotic angle of the first branch vessel (3) and the corresponding original vessel can be adjusted when the first branch vessel is applied to an operation.
In another embodiment of the present invention, the substrate is,
the included angle gamma between the second branch blood vessel (4) and the third branch blood vessel (5) is adjustable. Therefore, the anastomotic angle of the second branch blood vessel (4) and the third branch blood vessel (5) with the corresponding original blood vessel can be adjusted when the operation is performed.
In another embodiment of the present invention, the substrate is,
the adjustable ranges of the included angles alpha and beta are both 30-60 degrees, and the adjustable range of the included angle gamma is 0-30 degrees.
In a further embodiment of the method according to the invention,
the included angle between the grade 1 branch (2) and the first branch blood vessel (3) is 60-120 degrees.
In a further embodiment of the method according to the invention,
the artificial blood vessel level 1 branch (2) and the first branch blood vessel (3) are approximately positioned at the same position of the main trunk of the artificial blood vessel.
In another embodiment of the present invention, the substrate is,
the substantially same location divides the trunk into two sections,
exemplary, wherein a length is between 30 and 25cm;
the other section is 10 to 15cm.
In another embodiment of the present invention, the substrate is,
illustratively, the diameter of the stem is 26-32mm.
In a further embodiment of the method according to the invention,
illustratively, the grade 1 branch is 16mm in diameter.
In a further embodiment of the method according to the invention,
illustratively, the first to third branches have a diameter of 8-10mm.
In another embodiment of the present invention, the substrate is,
illustratively, the top to bottom length of the level 1 branch (2) is 5cm.
In another embodiment of the present invention, the substrate is,
illustratively, the first to third branch vessels have a length of at most 30cm.
In another embodiment of the present invention, the substrate is,
the artificial blood vessel main body, the level 1 branch and the first to third branch blood vessels have the characteristics of stretching and extruding on the premise of default delivery length, and the lengths of all parts of the artificial blood vessel main body, the level 1 branch and the first to third branch blood vessels can be further adjusted through the stretching and extruding characteristics.
In another embodiment of the present invention, the substrate is,
the artificial blood vessel main body, the grade 1 branch and the first to third branch blood vessels also have bending characteristics on the premise of default delivery appearance, and included angles among all parts of the artificial blood vessel main body, the grade 1 branch and the first to third branch blood vessels can be further adjusted through the bending characteristics.
In another embodiment of the present invention, the substrate is,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main part of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first upper edge is flush with the second upper edge.
In another embodiment of the present invention, the substrate is,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main trunk of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first lower edge is flush with the second lower edge.
In another embodiment of the present invention, the substrate is,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main trunk of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first upper edge is flush with the second upper edge.
In another embodiment of the present invention, the substrate is,
one or more 1-grade branch knotting sites are arranged on the 1-grade branch (2) of the artificial blood vessel, and the 1-grade branch (2) of the artificial blood vessel is close to the trunk of the artificial blood vessel;
one or more main body knotting sites are also arranged on the main body (1) of the artificial blood vessel, and the position of the main body (1) of the artificial blood vessel close to the 1-level branch (2) of the artificial blood vessel.
In another embodiment of the present invention, the substrate is,
one or more first branch knotting sites are arranged on the first branch blood vessel (3) and at the position, close to the artificial blood vessel trunk, of the first branch blood vessel (3);
one or more main body knotting sites are also arranged on the main body (1) of the artificial blood vessel, and the position of the main body (1) of the artificial blood vessel, which is close to the first branch blood vessel (3).
It should be noted that, the existence of the aforesaid included angle and the adjustable range thereof make the artificial blood vessel disclosed in the present disclosure have the aforesaid technical function of restoring blood circulation as soon as possible in the application process, and also: compared with a four-branch artificial blood vessel, the artificial blood vessel has the characteristics of easy adjustment, flexibility and maximized prevention of vessel rupture under the condition of reducing one branch.
The knotted sites further disclosed in the embodiments herein further enhance the ease of adjustment, flexibility, and maximum prevention of vessel kinking of the vascular prosthesis disclosed in the present disclosure. Illustratively, the spatial position relationship of the first branch vessel (3) and the knotted position of the artificial blood vessel trunk (1) can be further adjusted by connecting a line between the knotted positions of the artificial blood vessel 1-level branch (2) and the artificial blood vessel trunk (1). If necessary, one or more corresponding branch knotting sites can be arranged on the second branch blood vessel (4) and the third branch blood vessel (5), and a line can be connected with the knotting sites of the artificial blood vessel trunk (1) so as to further adjust the spatial position relationship of each other.
In the description of the present specification, reference to the description of "one embodiment/mode", "some embodiments/modes", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are provided merely for clarity of explanation and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. A multi-branch vascular prosthesis, comprising:
the artificial blood vessel includes: the artificial blood vessel comprises an artificial blood vessel trunk (1), an artificial blood vessel grade 1 branch (2) at one side of the trunk, and a first branch blood vessel (3) at the other side of the trunk;
the bottom end of the grade 1 branch (2) of the artificial blood vessel is connected with the main trunk of the artificial blood vessel, and the top end of the grade 1 branch of the artificial blood vessel is respectively connected with the second branch blood vessel (4) and the third branch blood vessel (5).
2. The artificial blood vessel of claim 1,
the included angle alpha between the artificial blood vessel level 1 branch (2) and the artificial blood vessel main body (1) is adjustable.
3. The artificial blood vessel of claim 1,
the included angle beta between the first branch blood vessel (3) and the artificial blood vessel main body (1) is adjustable.
4. The artificial blood vessel of claim 1,
the included angle gamma between the second branch blood vessel (4) and the third branch blood vessel (5) is adjustable.
5. The artificial blood vessel of claim 1,
the level 1 branch (2) of the artificial blood vessel and the first branch blood vessel (3) are approximately positioned at the same position of the main trunk of the artificial blood vessel.
6. The artificial blood vessel of claim 1,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main part of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first upper edge is flush with the second upper edge.
7. The artificial blood vessel of claim 1,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main part of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first lower edge is flush with the second lower edge.
8. The artificial blood vessel of claim 1,
the joint of the bottom end of the artificial blood vessel level 1 branch (2) and the main trunk of the artificial blood vessel is provided with a first upper edge and a first lower edge;
the joint of the first branch blood vessel (3) and the main trunk of the artificial blood vessel is provided with a second upper edge and a second lower edge;
the first upper edge is flush with the second upper edge.
9. The artificial blood vessel of claim 1,
one or more 1-grade branch knotting sites are arranged on the 1-grade branch (2) of the artificial blood vessel, and the 1-grade branch (2) of the artificial blood vessel is close to the trunk of the artificial blood vessel;
one or more main body knotting sites are also arranged on the main body (1) of the artificial blood vessel, and the position of the main body (1) of the artificial blood vessel close to the 1-level branch (2) of the artificial blood vessel.
10. The artificial blood vessel of claim 1,
one or more first branch knotting sites are arranged on the first branch blood vessel (3) and the first branch blood vessel (3) is close to the artificial blood vessel trunk;
one or more main body knotting sites are also arranged on the main body (1) of the artificial blood vessel, and the position of the main body (1) of the artificial blood vessel, which is close to the first branch blood vessel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221172465.1U CN218220393U (en) | 2022-05-16 | 2022-05-16 | Multi-branch artificial blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221172465.1U CN218220393U (en) | 2022-05-16 | 2022-05-16 | Multi-branch artificial blood vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218220393U true CN218220393U (en) | 2023-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221172465.1U Active CN218220393U (en) | 2022-05-16 | 2022-05-16 | Multi-branch artificial blood vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218220393U (en) |
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2022
- 2022-05-16 CN CN202221172465.1U patent/CN218220393U/en active Active
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