KR101649534B1 - Optical-based blood flow measurement method and system for monitoring opening of vascular anastomosis - Google Patents

Abstract

The present invention relates to an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed vessel, and more particularly, to a vascular anastomosis apparatus (100) disposed at an anastomotic vessel site. A blood flow rate detecting sensor 200 integrally coupled to the vascular athletic apparatus 100 for detecting blood flow around the anastomosed blood vessel region; And a blood flow monitoring device 300 that receives information on blood flow measured by the blood flow detecting sensor 200 and monitors the blood flow amounts, wherein the blood flow detecting sensor 200 detects an amount of light And non-invasively detects the blood flow quantities.
In addition, the present invention relates to an optical-based blood flow measuring method capable of monitoring the opening of an anastomosed blood vessel, and more particularly, ); (2) combining (S312) a second vascular graft device at a second end of the blood vessel; (3) binding the first vascular anastomosing device and the second vascular anastomosing device, and mating the cut blood vessels (S313); (4) measuring (S315) the first blood flow volume before the anastomosed region and the second blood flow volume after the anastomotic region from the first vascular anastomosis apparatus and the second vascular anastomosis apparatus; And (5) wirelessly transmitting the measured first blood flow rate and the second blood flow rate to the monitoring device (S317).
According to the optical-based blood flow measuring method and the optical-based blood flow measuring system using the optical-based blood flow measuring method, which are capable of monitoring the opening of the anastomosed blood vessel proposed in the present invention, A blood flow rate sensor for detecting blood flow around the anastomosed blood vessel, a blood flow rate monitoring device for monitoring the blood flow rate by receiving the blood flow rate information measured by the blood flow rate sensor, The sensor non-invasively senses blood flow by irradiating light to the anterior and posterior parts of the anastomosed vessel so that it is possible to continuously monitor whether the blood vessels of the surgical site are properly anastomosed, Can easily detect whether the agreement is normal have.

Description

TECHNICAL FIELD [0001] The present invention relates to an optical-based blood flow measurement method capable of monitoring the opening of an anastomosed blood vessel, and an optical-based blood flow measurement system using the same.

The present invention relates to a blood flow measuring method and a blood flow measuring system using the same, and more particularly, to an optical blood flow measuring method and an optical based blood flow measuring system using the same for monitoring the opening of an anastomosed blood vessel.

As urbanization progresses rapidly, people's lack of exercise, westernization of eating habits become widespread, so-called vascular occlusive diseases, in which the blood vessels of the human body are narrowed or largely clogged, are gradually increasing. In particular, the majority of heart diseases can be caused by ischemia, which is blocked by blood vessels supplying nutrients and oxygen to the heart, which can be typified by myocardial infarction and angina.

Often surgical treatment may be applied to treat such closed vessels, or nearly occluded blood vessels. For example, a procedure may be used in which the site where vascular occlusion has progressed is cut off and then the cut blood vessels are knitted. In addition to the treatment of such vascular occlusive disease, vascular anastomosis surgery can also be performed in the reconstructive operation of the flap in the above-described manner or in the anastomosis operation of the severed blood vessel.

Surgery for stitching together blood vessels in a continuous, periodic beating area, such as the heart, can be performed by a highly skilled specialist with a great deal of time and effort. Therefore, it is very important to check whether an anastomosed vessel is anastomosed in the human body. If the vessel anastomosis is not performed properly, serious side effects such as internal hemorrhage may cause life-disruption.

In this connection, Japanese Laid-Open Patent Publication No. 10-2013-0141977 (Dec. 27, 2013) and Patent Publication No. 10-1318485 (Oct. 20, 2013) disclose a device that can be used for vascular anastomosis . However, techniques for continuously monitoring whether or not an anastomosis of an anastomotic site of an anastomotic operation is performed have limitations that have not been disclosed, and in particular, a technology capable of early detection of an anastomotic blood leak during an everyday life after surgery There is a problem that is not disclosed at all.

The present invention has been proposed in order to solve the above-mentioned problems of the previously proposed methods, and it is an object of the present invention to provide an optical-based blood flow measurement system which comprises a vascular anastomosis device disposed in an anastomosed blood vessel region, And a blood flow rate monitoring device for monitoring the blood flow rate by receiving blood flow rate information measured by the blood flow rate detection sensor, wherein the blood flow rate detection sensor detects an amount of light The blood flow can be monitored noninvasively to continuously monitor whether or not the blood vessels of the surgical site are properly anastomosed and to easily detect whether the blood vessels in the human body are normal or not, Optical-based blood that can monitor the opening of an aneurysm And a quantity measuring method and an optical-based blood flow measuring system using the same for that purpose.

According to an aspect of the present invention, there is provided an optical-based blood flow measuring system for monitoring an opening of an aneutralized blood vessel,

A vascular anastomosing device disposed at an anatomical vessel site;

A blood flow rate sensor integrally coupled to the vascular anastomosis device and detecting blood flow around the anastomosed blood vessel portion; And

And a blood flow monitoring device for monitoring the blood flow rates by receiving information on blood flow rates measured by the blood flow detecting sensor,

The blood flow rate sensor may include:

And configured to detect non-invasively the blood flow quantities by irradiating light on the anastomosed blood vessel region.

Preferably, the vascular grafting device further comprises:

A first vascular access unit surrounding the blood vessel at an upstream side of the aorta blood vessel site; And

And a second vascular augmentor which surrounds the blood vessel on the downstream side of the anastomosed vascular site and is coupled with the first vascular aorta to maintain anastomosis of the anastomosed vascular site.

Preferably,

The first vascular access arteriosity and the second vascular access arteriosum are each,

A tubular attachment tube hollowed to surround the blood vessel; And

And a plurality of latching protrusions disposed on an outer circumferential surface of the attachment tube.

Advantageously, the attachment tube comprises:

And a plurality of vascular fixation hooks having sharp ends for fixing at least a part of the outer surface of the blood vessel.

Preferably,

A protruding engaging portion protruding vertically toward an outer circumferential surface of the blood vessel is formed on the latching protrusion of the first vascular aphasizer,

An engaging groove is formed in the engaging protrusion of the second vascular grafting machine so as to be opened toward an outer circumferential surface of the blood vessel,

And the first vascular anastomosis unit and the second vascular anastomosis unit may be bound together as the projecting engagement unit is coupled to the engagement groove.

Preferably, the blood flow rate sensor further comprises:

For each of the first vascular graft and the second vascular graft,

And may be arranged between the attachment tube and any one of the engagement protrusions.

Preferably, the blood flow rate sensor further comprises:

A blood flow rate sensing unit for sensing blood flow around the anastomosed blood vessel region; And

And a control board for transmitting the information of the detected blood flow to the blood flow monitoring device.

Preferably, the blood flow rate sensing unit includes:

And irradiate the light toward an outer circumferential surface of the blood vessel enclosed by the attachment tube to detect light reflected, absorbed or transmitted by the blood vessel.

Preferably, the blood flow rate sensor further comprises:

And may include a photoplethysmography sensor.

Preferably, the blood flow rate sensor further comprises:

A first blood flow amount flowing from the upstream side of the anastomosed blood vessel region to the anastomosed blood vessel region and a second blood flow amount flowing from the anastomosed blood vessel region toward the downstream side of the aorta blood vessel region, To the device.

Preferably, the blood flow monitoring apparatus further comprises:

And to receive information of the first blood flow rate and the second blood flow rate from the blood flow rate sensor wirelessly.

Preferably, the blood flow monitoring apparatus further comprises:

A gateway for wirelessly receiving information of the first blood flow rate and the second blood flow rate; And

And a monitoring system that is electrically connected to the gateway and processes information of the first blood flow amount and the second blood flow amount according to a predetermined algorithm.

Advantageously, the monitoring system comprises:

And compare the first blood flow amount and the second blood flow amount to output an alarm signal when the difference between the first blood flow amount and the second blood flow amount is equal to or greater than a preset threshold value.

Preferably, the alarm signal comprises:

A graphic signal output on a display unit of the monitoring system, and a sound signal output on a speaker of the monitoring system.

According to an aspect of the present invention, there is provided an optical-based blood flow measuring method,

(1) attaching a first vascular anastomosis device to a first end of a blood vessel cut;

(2) attaching a second vascular graft device to the severed second end of the vessel;

(3) binding the first vascular grafting device and the second vascular grafting device, and knitting the severed blood vessels;

(4) measuring the first blood flow volume before the anastomotic site and the second blood flow volume after the anastomotic site from the first vascular anastomosing device and the second vascular anastomosing device; And

(5) wirelessly transmitting the measured first blood flow amount and the second blood flow amount to the monitoring device.

Preferably, in the step (4)

And measure the first blood flow volume and the second blood flow volume non-invasively by irradiating light on each of the blood vessel areas before and after the anastomotic site.

Preferably, in the step (1) and the step (2)

Wherein the first vascular anastomosing device is coupled to surround the blood vessel at an upstream side of the severed blood vessel portion,

The second vascular grafting device may be configured to be coupled to surround the blood vessel on the downstream side of the severed blood vessel portion.

Preferably,

(6) outputting an alarm signal when the difference between the first blood flow rate and the second blood flow rate exceeds a preset threshold value.

Preferably, in said step (6)

The alarm signal may include at least one of a graphic signal output on a display unit of the monitoring system and a sound signal output on a speaker of the monitoring system.

According to the optical-based blood flow measuring method and the optical-based blood flow measuring system using the optical-based blood flow measuring method, which are capable of monitoring the opening of the anastomosed blood vessel proposed in the present invention, A blood flow rate sensor for detecting blood flow around the anastomosed blood vessel, a blood flow rate monitoring device for monitoring the blood flow rate by receiving the blood flow rate information measured by the blood flow rate sensor, The sensor non-invasively senses blood flow by irradiating light to the anterior and posterior parts of the anastomosed vessel so that it is possible to continuously monitor whether the blood vessels of the surgical site are properly anastomosed, Can easily detect whether the agreement is normal have.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating a configuration of an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed vessel according to an embodiment of the present invention. FIG.
FIG. 2 illustrates an apparatus for vascular anastomosis in an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed vessel according to an embodiment of the present invention. FIG.
3 is a side view of a vascular grafting device of an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed vessel according to an embodiment of the present invention.
FIG. 4 is a view showing a position where a blood flow detecting sensor of an optical-based blood flow measuring system capable of monitoring the opening of an aneutralized blood vessel according to an embodiment of the present invention is worn. FIG.
FIG. 5 is a view showing a state in which vascular grafting devices of an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention are respectively worn around a blood vessel region to be stomach-operated.
6 is a block diagram of an apparatus for monitoring blood flow in an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed vessel according to an embodiment of the present invention.
FIG. 7 illustrates the use of an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed vessel according to an embodiment of the present invention. FIG.
FIG. 8 is a view showing a state in which a blood flow rate of a normally anastomosed blood vessel is monitored by an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention. FIG.
FIG. 9 is a view showing a state in which a blood flow amount in a blood vessel region that is not correctly stuck by an optical-based blood flow measuring system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention is monitored.
FIG. 10 is a flow chart of an optical-based blood flow measurement method capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. In the following detailed description of the preferred embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The same or similar reference numerals are used throughout the drawings for portions having similar functions and functions.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to "include" an element means that it may include other elements, rather than excluding other elements, unless specifically stated otherwise.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating a configuration of an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention. FIG. 1, an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention includes an apparatus 100 for measuring blood flow, a blood flow detection sensor 200, 300). The blood flow detection sensor 200 may be integrally coupled to the vascular grafting device 100. For example, the vascular graft device 100 may include a pair of vascular grafts, in which case the blood flow sensor 200 may be integrally coupled to each vascular graft. The blood flow monitoring device 300 may be connected to the blood flow detection sensor 200 wirelessly. For example, the blood flow monitoring apparatus 300 can receive blood flow information measured from the blood flow detecting sensor 200 wirelessly. Hereinafter, each component of the optical-based blood flow measurement system capable of monitoring the opening of the anastomosed blood vessel according to an embodiment of the present invention will be described in more detail.

FIG. 2 is a view showing an apparatus for vascular anastomosis of an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention, and FIG. 3 is a cross- Based blood flow measurement system capable of monitoring the opening of the vascular anastomosis apparatus. 2 and 3, an apparatus for vascular anastomosis 100 of an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention includes: And may include a sheath 110 and a second vascular anchor 120. This first vascular anastomosis 110 may be disposed adjacent the severed first end of the vessel and the second vascular anastomosis 120 may be disposed adjacent the severed second end of the vessel. For example, the first vascular anastomosis 110 may be arranged to surround the blood vessel on the upstream side of the blood vessel region to be anastomosed, and the second vascular anastomosis 120 may be arranged on the downstream side of the anastomosis region And can be anastomosed to an anastomosed blood vessel site as it is associated with the first vascular aortic coherence 110.

Each of the first vascular anastomosis 110 and the second vascular anastomosis 120 includes a tubular attachment tube 111 hollowed to surround the blood vessel and a plurality of And may include a locking protrusion 115. At this time, the attachment tube 111 may include a plurality of blood vessel fixing hooks 113 having sharp ends for fixing a part of the outer surface of the blood vessel. For example, the vascular grafting machines 110 and 120 may be fixedly disposed on one end of a blood vessel cut by the blood vessel fixing hook 113.

In addition, the engaging protrusion 115 may be formed with a protruding engaging portion for engaging the pair of vascular sewing machines 110 and 120 and a corresponding engaging groove. For example, the latching protrusion 115 of the first vascular anastomizer 110 may be provided with a protruding engaging portion 117 vertically protruding toward the outer peripheral surface of the blood vessel, and a corresponding second vascular septum 120 may be formed with coupling grooves that open toward the outer peripheral surface of the blood vessel. In this case, as the projecting engaging portion 117 is engaged with the engaging groove, the first vascular anchor 110 and the second vascular anchor 120 can be tightly coupled. Depending on the embodiment, these projecting engaging portions and engaging grooves can be arranged alternately with respect to the engaging protrusions 115 of the first vascular aunter 110 and the second vascular anchor 120, respectively . For example, one of the latching protrusions 115 of the first vascular aerator 110 is provided with a protruding engaging portion, and the engaging protrusion adjacent to the latching protrusion 115 may be provided with an engaging groove. In this case, the protruding engaging portion is provided on the corresponding latching protrusion of the second vascular aegener 120, and the engaging groove is disposed on the latching protrusion adjacent thereto. In Fig. 2, there is shown an embodiment in which such protruding engaging portions and engaging grooves are alternately arranged in each of the vascular wear assemblies 110 and 120. Fig.

3, the blood flow rate sensor 210 may be disposed between the attachment tube 111 and any one of the locking protrusions 115 with respect to each of the vascular anastomosis machines 110 and 120. For example, the blood flow detecting sensor 210 includes a blood flow detecting unit 213 for detecting a blood flow around the anatomized blood vessel region, and a control board 211 for transmitting the detected blood flow information to the blood flow monitoring apparatus 300. [ . ≪ / RTI >

FIG. 4 is a view showing a position where a blood flow detecting sensor of an optical-based blood flow measuring system capable of monitoring the opening of an aneutralized blood vessel is worn according to an embodiment of the present invention. Based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention is worn on the periphery of a blood vessel region to be anastomosed, respectively. 4, the blood flow detecting unit 213 of the blood flow detecting sensors 200 and 210 irradiates light toward the outer peripheral surface of the blood vessel 51 surrounded by the attaching tube, and the irradiated light is reflected by the blood vessel Reflected, absorbed, or transmitted. For example, the blood flow detection sensors 200 and 210 may be configured to include a photoplethysmography sensor. That is, the pulse wave can be measured by detecting the characteristics of the blood vessel such as reflectance, absorption rate, transmittance, and the like and by changing the sensed characteristic. Such a pulse wave can have a pulsating waveform appearing when blood is discharged from the heart, The changes in blood volume and blood flow due to relaxation and contraction of the heart can be shown.

5, the blood vessel articulators 110 and 120 are disposed at respective ends of the cut blood vessel portion and the blood flow amount sensor 200 is integrally attached to the blood vessel articulators 110 and 120 Depending on the placement, it is possible to detect the anterior and posterior blood flow of the anatomy of the anatomy. For example, the blood flow detecting sensor 200 integrally coupled to the first vascular anastomizer 110 senses a first blood flow flowing from the upstream side of the anastomosed blood vessel portion toward the anastomosed blood vessel portion, The blood flow detecting sensor 200 integrally coupled to the vascular anastomosis unit 120 may be configured to detect a second blood flow flowing toward the downstream side of the anastomosed blood vessel region from the anastomosed blood vessel region. The blood flow information detected at the anterior and posterior parts of the anastomosed blood vessel may be wirelessly transmitted to the blood flow monitoring apparatus 300.

FIG. 6 is a block diagram of an apparatus for monitoring blood flow in an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention. 6, an apparatus for monitoring blood flow in an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention includes a gateway 310 and a monitoring system 330, . The gateway 310 may be configured to wirelessly receive the information of the first blood flow rate and the second blood flow rate. The monitoring system 330 may be electrically connected to the gateway 310 and configured to process the information of the first blood flow rate and the second blood flow rate according to a predetermined algorithm. In the present embodiment, the monitoring system 330 can be any computing device including any processor and memory, including, for example, a microprocessor, a microcomputer, a PC, a notebook computer, a smart phone, a tablet PC, May be a computing device.

The monitoring system 330 may be configured to process information on the first blood flow rate and the second blood flow rate, which are transmitted through the gateway 310, according to a predetermined algorithm. For example, the monitoring system 330 may compare the first blood flow rate and the second blood flow rate, and output an alarm signal when the difference between the first blood flow rate and the second blood flow rate is equal to or greater than a preset threshold value. At this time, the alarm signal may be a graphic signal outputted on the display unit of the monitoring system 330, a sound signal outputted on the speaker of the monitoring system 330, or the like.

FIG. 7 is a view showing an optical-based blood flow measuring system for monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention. FIG. 8 is a cross- FIG. 9 is a view showing a state in which a blood flow of a normally anastomosed blood vessel region is monitored by an optical-based blood flow measurement system capable of monitoring the opening of an anastomosed vessel according to an embodiment of the present invention. FIG. 3 is a view showing a state in which a blood flow volume of a blood vessel site that has not been properly anastomosed by an optical-based blood flow measurement system is monitored. As shown in FIG. 7, in a human patient whose blood vessel cut by the vascular anastomosis operation is anastomosed, the anastomosis of the blood vessels 51 and 53 is arranged in the anastomotic region of the cut blood vessel portions 51 and 53 (110, 120) for holding the blood vessel. Each of the vascular grafts 110 and 120 is provided with a blood flow detecting sensor 200 which is integrally coupled to the first blood flow amount flowing from the upstream side blood vessel 51 at the anastomosis site and the first blood flow amount flowing from the downstream side blood vessel 53 The information on the second blood flow flowing through the blood flow monitoring device 300 can be wirelessly transmitted to the blood flow monitoring device 300. [

At this time, the transmitted blood flow information may be expressed, for example, as a blood flow graph shown in FIG. 8 or FIG. As shown in FIG. 8, when the blood flow before and after the anastomosis region is detected as flowing with a similar blood flow rate and pattern, it can be confirmed that the anastomosed blood vessel region is normally opened. However, as shown in FIG. 9, when the blood flow after the anastomosis is significantly decreased and the blood flow itself is significantly different from the blood flow before the anastomosis site, the anastomotic blood vessel site is not properly anastomosed, It can be judged that a part of the blood is leaked. In this case, since leaked blood may solidify in the human body and cause serious problems, it is important to continuously monitor the leakage of blood. According to the optical-based blood flow measuring system according to the present embodiment, . Particularly, in the display unit or the speaker of the monitoring system 330, when the blood leakage is detected, an alarm signal is instantly outputted to notify the patient himself or herself of the vascular anastomosis operation, The emergency situation can be prevented.

FIG. 10 is a flow chart of an optical-based blood flow measuring method capable of monitoring the opening of an anastomosed blood vessel according to an embodiment of the present invention. As shown in FIG. 10, an optical-based blood flow measuring method capable of monitoring the opening of an anastomosed vessel according to an embodiment of the present invention includes the steps of: binding a first vessel end- (S312) connecting the second vascular grafting device to the second cut end of the blood vessel (S312), binding the first vascular grafting device and the second vascular grafting device, and joining the severed blood vessel (S313) Measuring a first blood flow volume before the anastomosis site and a second blood flow volume after the anastomosis site from the first vascular anastomosis device and the second vascular anastomosis device (S315), and transmitting the measured first blood flow volume and the second blood flow volume to the blood flow monitoring device The method may further include a step S319 of outputting an alarm signal when the difference between the first blood flow amount and the second blood flow amount exceeds a predetermined threshold value after step S317 Configuration Can.

At this time, steps S311 and S312 may be performed simultaneously, and in step S311, the first vascular anastomosing device is coupled to surround the blood vessel on the upstream side of the severed blood vessel part, and in step S312, And may be coupled to surround the blood vessel on the downstream side of the blood vessel region.

In step S315, light is irradiated to each of the blood vessel regions before and after the anastomotic site, and the first blood flow amount and the second blood flow amount can be measured non-invasively.

In step S319, the alarm signal may be output in the form of a graphic signal output on the display unit of the monitoring system, a sound signal output on the speaker of the monitoring system, or the like.

The present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics of the invention.

51, 53: blood vessel 100: vascular anastomosis device
110: first vascular anastomosis 113: vascular fixation hook
115, 125: latching protrusion 117:
120: second vascular grafting machine 200, 210: blood flow detection sensor
211: control board 213: blood flow volume sensing unit
300: blood flow monitoring device 310: gateway
330: Monitoring system
S311: binding the first vascular graft device to the first end of the blood vessel cut
S312: coupling the second vascular graft device to the severed second end of the vessel
S313: binding the first vascular anastomosis device and the second vascular anastomosis device, and fitting the severed blood vessels
S315: measuring the first blood flow volume before the anastomosis site and the second blood flow volume after the anastomosis site from the first vascular anastomosis device and the second vascular anastomosis device
S317: transmitting the measured first blood flow rate and second blood flow rate to the blood flow monitoring device
S319: outputting an alarm signal when the difference between the first blood flow rate and the second blood flow rate exceeds a predetermined threshold value

Claims (19)

An optical-based blood flow measurement system,
A vascular anastomosis device (100) disposed at an anatomical vessel site;
A blood flow rate detecting sensor 200 integrally coupled to the vascular athletic apparatus 100 for detecting blood flow around the anastomosed blood vessel region; And
And a blood flow monitoring device 300 for monitoring the blood flow rates by receiving information on blood flow rates measured by the blood flow detecting sensor 200,
The blood flow rate detection sensor (200)
And non-invasively detecting the blood flow quantities by irradiating light on the anastomosed vessel region,
The vascular grafting device (100)
A first blood vessel stapler 110 surrounding the blood vessel at an upstream side of the stapled blood vessel site and a second blood vessel stapler 110 surrounding the blood vessel at a downstream side of the stapled blood vessel site and being coupled to the first blood vessel stapler 110 And a second vascular augmentor (120) for maintaining anastomosis of the anastomosed vascular site,
The first vascular anastomosis machine 110 and the second vascular anastomosis machine 120 may each have a first,
And a plurality of latching protrusions (115) disposed on an outer circumferential surface of the attachment tube (111), wherein the attachment tube (111) And a plurality of vascular fixation hooks (113) having sharp ends for fixing at least a portion of the side surface,
A protruding engaging portion 117 vertically protruding toward the outer circumferential surface of the blood vessel is formed in the engaging protrusion 115 of the first vascular anastomizer 110, The first vascular anastomizer 110 and the second vascular anastomizer 120 are coupled to each other as the protruding coupling portion 117 is deflected into the coupling groove, And,
The blood flow rate detection sensor (200)
(110) and the second vascular anastomosis unit (120) are disposed between the attachment tube (111) and any one of the engagement protrusions (115), and the blood vessels And a control board 211 for transmitting the detected blood flow amount information to the blood flow monitoring device 300. The blood flow monitoring device 300 includes a control board 211,
The blood flow rate detection sensor (200)
A first blood flow amount flowing from an upstream side of the anastomosed blood vessel portion toward the anastomosed blood vessel portion and a second blood flow amount flowing downstream of the aortic vessel portion from the anastomosed blood vessel portion, RTI ID = 0.0 > 300, < / RTI >
The blood flow monitoring apparatus (300)
A gateway 310 for wirelessly receiving information on the first blood flow rate and the second blood flow rate; and a controller 310 electrically connected to the gateway 310, for receiving the first blood flow rate and the second blood flow rate information according to a predetermined algorithm And a monitoring system (330)
The monitoring system (330)
And outputs an alarm signal when the difference between the first blood flow amount and the second blood flow amount is equal to or greater than a preset threshold value, Wherein the monitoring system includes at least one of a graphic signal output on the monitor and a sound signal output on the speaker of the monitoring system.
delete delete delete delete delete delete The method according to claim 1,
The blood flow rate sensing unit 213,
And is configured to illuminate the light toward an outer circumferential surface of a blood vessel surrounded by the attachment tube and to sense light reflected, absorbed or transmitted by the blood vessel. Blood flow measurement system.
9. The blood-flow meter according to claim 8, wherein the blood-
An optical-based blood flow measurement system capable of monitoring the opening of an anastomosed blood vessel, characterized by comprising a photoplethysmography sensor.
delete The blood-flow monitoring apparatus (300) according to claim 1,
Wherein the first blood flow rate and the second blood flow rate information are received wirelessly from the blood flow rate detection sensor (200).
delete delete delete An optical-based blood flow measurement method,
(1) combining (S311) a first vascular graft device at a first end of the blood vessel cut;
(2) combining (S312) a second vascular graft device at a second end of the blood vessel;
(3) binding the first vascular anastomosing device and the second vascular anastomosing device, and mating the cut blood vessels (S313);
(4) measuring (S315) the first blood flow volume before the anastomosed region and the second blood flow volume after the anastomotic region from the first vascular anastomosis apparatus and the second vascular anastomosis apparatus; And
(5) transmitting the measured first blood flow amount and the second blood flow amount to the monitoring device by wireless (S317)
In the above steps (1) and (2)
Wherein the first vascular grafting device is coupled to surround the blood vessel at an upstream side of the severed blood vessel portion and the second vascular anastomosing device is coupled to surround the blood vessel at a downstream side of the severed blood vessel portion,
The first vascular anastomosing device and the second vascular anastomosing device may each comprise:
And a plurality of latching protrusions disposed on an outer circumferential surface of the attachment tube, wherein the attachment tube has a pointed end for fixing at least a part of the outer surface of the blood vessel A plurality of vascular fixation hooks,
In the step (4)
Irradiating each of the blood vessel regions before and after the anastomotic site with light to non-invasively measure the first blood flow amount and the second blood flow amount,
(6) outputting an alarm signal (S319) when the difference between the first blood flow amount and the second blood flow amount exceeds a preset threshold value, wherein the alarm signal is outputted on the display unit of the monitoring system Wherein the at least one of the at least one of the at least one of the at least one of the at least two of the at least one of the at least one of the at least two of the at least one of the at least one of the at least one of the at least two of the at least one of the at least one of the at least one.
delete delete delete delete

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