CN112998684A - Blood flow dynamic monitor - Google Patents

Abstract

Translated fromChinese

本发明公开了一种血流动态监测器，包括血管套管、探头固定座和探头，其中，所述血管套管用于套合于吻合后的血管上；探头固定座固定于所述血管套管的外壁，其包括探头固定座外层和探头固定座内层，探头固定座内层设置于探头固定座外层的内侧，探头固定座内层的中部设置有柱形凹槽，柱形凹槽的侧壁设置有内螺纹；探头包括导丝和防护套，防护套套于导丝的外侧，探头一端的防护套设置有外螺纹，用于与所述柱形凹槽的内螺纹配合设置，探头的另一端用于与多普勒监测仪连接；血管套管和探头固定座均由可降解材质制成，且探头固定座内层的降解速率大于探头固定座外层的降解速率。

The invention discloses a blood flow dynamic monitor, which comprises a blood vessel sleeve, a probe fixing seat and a probe, wherein the blood vessel sleeve is used to be sleeved on the blood vessel after anastomosis; the probe fixing seat is fixed on the blood vessel sleeve The outer wall includes the outer layer of the probe holder and the inner layer of the probe holder, the inner layer of the probe holder is arranged on the inner side of the outer layer of the probe holder, the middle of the inner layer of the probe holder is provided with a cylindrical groove, and the cylindrical groove The side wall of the probe is provided with internal threads; the probe includes a guide wire and a protective sleeve, the protective sleeve is sleeved on the outer side of the guide wire, and the protective sleeve at one end of the probe is provided with an external thread, which is used to cooperate with the internal thread of the cylindrical groove. The other end of the probe is used to connect with the Doppler monitor; both the vascular sleeve and the probe holder are made of degradable materials, and the degradation rate of the inner layer of the probe holder is greater than the degradation rate of the outer layer of the probe holder.

Description

Blood flow dynamic monitor

Technical Field

The invention belongs to the technical field of blood vessel monitoring, and particularly relates to a blood flow dynamic monitor.

Background

The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.

In the surgical operation process, the blood vessels are often required to be anastomosed, whether the anastomosed blood vessels are open or not needs to be judged, and only the open blood vessels can be better healed and restored. When the anastomosed intima of the blood vessel is repaired, endothelial cells need to cross over the damaged area, so that two sides of the anastomosis are connected into a smooth surface, the repair cycle of the endothelial cells is generally 7 to 10 days, the smoothness of the blood vessel needs to be ensured in the whole process of repairing the blood vessel, and if the blood vessel is not smooth, the distal tissue of the anastomosed blood vessel does not supply blood, and necrosis occurs.

For some surgeries that can be observed through the body surface, such as skin flap transplantation, replantation of severed limbs (severed fingers), and the like, the traditional index for judging whether the blood vessels are open or closed is generally a subjective judgment index, such as capillary reaction time, skin color, skin tension, skin temperature and the like, but the judgment index completely depends on clinical experience, has no unified standard, is poor in accuracy, has certain hysteresis, and cannot be continuously monitored. However, for some visceral and deep tissue transplantation, such as liver transplantation, kidney transplantation, lung transplantation, coronary artery bypass grafting and the like, only some indirect indexes, such as bile secretion, anuresis, abnormal breathing, precordial pain and the like, can be passed through, the monitoring is not direct, and the lag time is too long, so that the consequences are serious. Although the blood vessel can be detected whether the blood vessel is unblocked in vitro by Doppler ultrasound, the patient is not suitable to move much in the postoperative dangerous period (generally 7-10 days after the operation), the mode cannot be adopted conventionally, and more importantly, the blood vessel is difficult to be monitored continuously.

Disclosure of Invention

In view of the above problems, the present invention provides a blood flow dynamics monitor.

To solve the above technical problem, one or more of the following embodiments of the present invention provide the following technical solutions:

the invention provides a blood flow dynamic monitor, which comprises a blood vessel sleeve, a probe fixing seat and a probe, wherein,

the blood vessel sleeve is used for being sleeved on the anastomosed blood vessel;

the probe fixing seat is fixed on the outer wall of the blood vessel sleeve and comprises a probe fixing seat outer layer and a probe fixing seat inner layer, the probe fixing seat inner layer is arranged on the inner side of the probe fixing seat outer layer, a cylindrical groove is formed in the middle of the probe fixing seat inner layer, and internal threads are formed in the side wall of the cylindrical groove;

the probe comprises a guide wire and a protective sleeve, the protective sleeve is sleeved on the outer side of the guide wire, an external thread is arranged on the protective sleeve at one end of the probe and used for being matched with the internal thread of the cylindrical groove, and the other end of the probe is used for being connected with a Doppler monitor;

the blood vessel sleeve and the probe fixing seat are both made of degradable materials, and the degradation rate of the inner layer of the probe fixing seat is greater than that of the outer layer of the probe fixing seat.

Compared with the prior art, one or more technical schemes of the invention have the following beneficial effects:

in the invention, the blood vessel sleeve is sleeved on the outer wall of the blood vessel, and the Doppler detector can detect the blood flow condition in the blood vessel after anastomosis in real time and feed back the unblocked condition of the blood vessel in time, thereby playing an important role in smooth rehabilitation of the blood vessel after anastomosis.

The outside of seal wire is provided with the lag, and the lag can play better guard action to the seal wire, prevents that the seal wire from exposing the accuracy that influences the detection in the body fluid environment. Simultaneously, threaded connection between lag and the probe fixing base inlayer can seal the tip of probe on the one hand, avoids probe tip and body fluid direct contact, improves the accuracy that blood flow detected, and on the other hand, the probe is convenient for directly back-off the probe from probe fixing base inlayer, retrieves the probe after finishing using.

Because the anastomosed blood vessel is fragile, when the blood vessel is recovered, a small acting force needs to be applied to the blood vessel in the process of unscrewing the probe from the probe fixing seat so as to prevent the blood vessel from being damaged greatly. The degradation rate of the inner layer of the probe fixing seat is greater than that of the outer layer of the probe fixing seat, after the blood vessel is monitored for 7-10 days continuously, the inner layer of the probe fixing seat is degraded to a greater extent, and at the moment, when the probe is screwed out reversely, the probe can be damaged only by applying a small force, so that the damage to the blood vessel is small, and the blood vessel cannot be damaged.

The blood vessel sleeve and the probe fixing seat are made of degradable materials, after the probe fixing seat is used, the probe is only required to be recovered, the blood vessel sleeve and the probe fixing seat are reserved, and after a certain time, the secondary damage to body tissues can be avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic diagram of an overall structure of a blood flow dynamics monitor according to an embodiment of the present invention;

FIG. 2 is a schematic view of a fitting structure between a probe and a casing according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a top view of a blood flow dynamic monitor according to an embodiment of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a schematic cross-sectional view of a cannula according to an embodiment of the invention;

FIG. 6 is a schematic cross-sectional view of a cannula according to another embodiment of the invention;

fig. 7 is a schematic view of an installation structure of the blood flow dynamics monitor of the present invention.

The probe comprises awrench 1, awrench 2, a stabilizingsleeve 3, a suturingseat 4,skin 5, aprobe 6, a probe fixing seatouter layer 7, acoupling agent 8, a blood vessel sleeve 9, a probe fixing seatinner layer 10, asuturing hole 11, a positioning arrow, 12, a clampingtooth 13, aclamping jaw 14, asecond groove 15, a screwing-out arrow, 16,subcutaneous tissue 17, adisplay 18 and a blood vessel.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In a first aspect, the present invention provides a blood flow dynamic monitor, comprising a blood vessel casing, a probe holder and a probe, wherein,

the blood vessel sleeve is used for being sleeved on the anastomosed blood vessel;

the probe fixing seat is fixed on the outer wall of the blood vessel sleeve and comprises a probe fixing seat outer layer and a probe fixing seat inner layer, the probe fixing seat inner layer is arranged on the inner side of the probe fixing seat outer layer, a cylindrical groove is formed in the middle of the probe fixing seat inner layer, and internal threads are formed in the side wall of the cylindrical groove;

the probe comprises a guide wire and a protective sleeve, the protective sleeve is sleeved on the outer side of the guide wire, an external thread is arranged on the protective sleeve at one end of the probe and used for being matched with the internal thread of the cylindrical groove, and the other end of the probe is used for being connected with a Doppler monitor;

the blood vessel sleeve and the probe fixing seat are both made of degradable materials, and the degradation rate of the inner layer of the probe fixing seat is greater than that of the outer layer of the probe fixing seat.

In some embodiments, the outer layer of the probe holder is poly-L-lactic acid, poly-DL-lactic acid, polyglycolide or polylactide, poly-L-lactic acid, PDS (ring-opened polymer of 1, 4-dioxan-2-hexanone), poly (ethylene glycol carbonate) or PCL (polycaprolactone).

Further, the material of the inner layer of the head fixing base is polylactic acid (PLA), polyglycolic acid (PGA), polylactic glycolic acid, or the like.

Furthermore, the material of the external screw thread outside the lag of probe tip is polylactic acid (PLA), polyglycolic acid (PGA) or polylactic acid glycolic acid, and is the material of easily degrading with the material of probe fixing base inlayer, and under this kind of circumstances, the external screw thread of probe and probe fixing base inlayer all have the degradation of certain degree in the internal 7-10 of probe, and the texture becomes loose, when back is unscrewed again, changes and unscrews.

In some embodiments, the circumference of the vascular cannula is divided into 2 sections or 3 sections, and when the number of the sections is 2, the two sections are both rigid structures and are hoop structures; when the number of the segments is 3, the segments are sequentially arranged in a rigid-flexible-rigid mode and are fixed on the blood vessel through clamping structures on rigid structures on two sides.

When the blood vessel sleeve is arranged in a rigid-flexible-rigid mode, the blood vessel sleeve can be attached to the outer wall of a blood vessel better due to certain elasticity of the flexible structure.

The material of the blood vessel sleeve can be polylactic acid (PLA), polyglycolic acid (PGA) and polylactic glycolic acid.

In some embodiments, a wrench is disposed on the probe. For rotating the probe.

Further, still including seam seat and firm cover, seam seat and firm cover all registrate in the outside of probe protective sheath layer, and sew up fixed connection between seat and the firm cover, seam seat and/or firm sheathe in and all be provided with the block fixed knot structure of probe protective sheath.

Furthermore, a plurality of sewing holes are formed in the sewing seat and are arranged along the circumferential direction of the sewing seat.

Furthermore, the clamping and fixing structure comprises a clamping jaw, a first groove and a second groove, the first groove is arranged on the inner wall of the stabilizing sleeve and/or the sewing seat, the second groove is arranged on the outer wall of the probe protecting sleeve, the opening of the first groove is opposite to that of the second groove, the inner wall of the first groove is an arc-shaped inner wall, and the arc-shaped inner wall is provided with clamping teeth;

the clamping jaw at least comprises a rotary fixed end, a first clamping end and a second clamping end, the clamping jaw is connected to the inner wall of the stabilizing sleeve and/or the sewing seat through the rotary fixed end, the first clamping end is matched with the clamping teeth on the inner wall of the first groove, and the second clamping end is matched with the second groove.

Still further, the second groove is an arc-shaped groove.

When continuously monitoring the blood flow of the blood vessel, the stability of the probe needs to be ensured, namely the probe is prevented from rotating, so that the probe is prevented from being screwed out of the probe fixing seat, or the rotation of the probe causes torsional injury to the blood vessel. Therefore, the probe needs to be fixed, at the moment, the claw is connected to the inner wall of the stabilizing sleeve or/and the sewing seat through the rotating fixed end, and the claw is fixed under the limiting effect of the clamping teeth and the second groove. When needs are unscrewed probe from the probe fixing base, exert certain effort to the spanner on the probe, apply the jack catch through the second recess on with the effort, make the jack catch overcome the spacing resistance of block tooth, it is rotatory around rotatory stiff end, until make the jack catch screw out from the second recess, in the first recess of part or whole screw in to fix in first recess under the effect of block tooth, at this moment, the probe can be rotatory under rotatory effort, and then screw out from the probe fixing base.

The jack catch, first recess and second recess all set up along the axial.

With this arrangement, relative sliding of the probe with respect to the stabilizer and suture seat is allowed over a distance, while relative rotation of the probe with respect to the stabilizer and suture seat is not allowed.

Furthermore, the sewing seat is provided with an indication mark, and the indication mark comprises a screwing-out arrow and a positioning arrow.

The inventor finds that in the practical process, because the anastomosed blood vessel is fragile, the fault tolerance rate in the probe rotation process is low, namely when the rotation direction of the probe during screwing out is wrong, the torsional acting force is easily applied to the blood vessel sleeve, and further certain damage is caused to the blood vessel; or if the probe is not completely screwed out of the probe fixing seat, the probe is pulled outwards, and the connected part exerts certain radial tension on the blood vessel through the blood vessel sleeve, so that the blood vessel is possibly damaged.

Therefore, the rotation direction of the probe and the degree of the probe being unscrewed from the probe holder are important control factors. The setting is unscrewed the arrow point, can indicate medical personnel's the direction of rotation of probe, sets up the location arrow point, is convenient for indicate medical personnel's the number of revolutions of probe to in judging to unscrew the probe from the probe fixing base completely. The number of turns of rotation can be confirmed by judging the number of turns of rotation of the wrench on the probe, on the premise that the number of turns of the probe screwed into the probe fixing seat is known.

In some embodiments, the ratio of the length of the vascular cannula to the diameter of the blood vessel is 5-20: 1.

Can effectively prevent the blood vessel from being damaged by the torsional acting force of the blood vessel sleeve.

The invention provides a using method of the blood flow dynamic monitor, which comprises the following steps:

injecting a set amount of couplant into the bottom of the inner layer of the probe fixing seat, screwing the end part of the probe into the probe fixing seat, and contacting the end part of the probe with the couplant;

sleeving a blood vessel sleeve on the outer side of the anastomosed blood vessel;

moving the suturing base to a proper position along the probe, suturing the suturing base on the skin, fixing the probe at a specific position through the suturing base, and enabling the other end of the probe to be in signal connection with the Doppler detector; the blood flow signal in the vessel is detected by a doppler detector. In order to prevent the probe from sliding outwards from the fixing seat, the probe can be stuck on the sewing seat through the medical adhesive tape, and then the probe is further fixed to prevent the probe from rotating or moving along the axial direction.

After blood vessel blood flow monitoring is finished, the medical adhesive tape is taken down, the wrench is rotated according to the indication direction of the screwing-out arrow on the suturing seat, the number of outward screwing-out circles is recorded under the indication action of the positioning arrow, after the probe is completely screwed out of the probe fixing seat, the suturing seat is taken down from the skin, and the probe is pulled out simultaneously.

Examples

As shown in fig. 1 and 7, a blood flow dynamic monitor comprises ablood vessel sleeve 8, a probe fixing seat and aprobe 5, wherein theblood vessel sleeve 8 is used for being sleeved on an anastomosedblood vessel 18;

as shown in fig. 2, the probe fixing seat is fixed on the outer wall of the blood vessel casing and comprises a probe fixing seatouter layer 6 and a probe fixing seat inner layer 9, the probe fixing seat inner layer 9 is arranged on the inner side of the probe fixing seatouter layer 6, a cylindrical groove is arranged in the middle of the probe fixing seat inner layer 9, and an internal thread is arranged on the side wall of the cylindrical groove;

theprobe 5 comprises a guide wire and a protective sleeve, the protective sleeve is sleeved on the outer side of the guide wire, an external thread is arranged on the protective sleeve at one end of the probe and is used for being matched with the internal thread of the cylindrical groove, and the other end of the probe is used for being connected with a Doppler monitor;

theblood vessel sleeve 8 and the probe fixing seat are both made of degradable materials, and the degradation rate of the inner layer of the probe fixing seat is greater than that of the outer layer of the probe fixing seat.

The outer layer of the probe fixing seat is made of poly-L-lactic acid, poly-DL-lactic acid, polyglycolide or polylactide, poly-L-lactic acid, PDS (ring-opening polymer of 1, 4-dioxanone-2-hexanone), poly (ethylene glycol carbonic acid), PCL (polycaprolactone) and the like.

The material of the inner layer of the probe fixing seat is polylactic acid (PLA), polyglycolic acid (PGA) and polylactic glycolic acid.

The material of the external screw thread outside the lag of probe tip is polylactic acid (PLA), polyglycolic acid (PGA) or polylactic acid glycolic acid, and is the easily degradable material with the material of probe fixing base inlayer, and under this kind of condition, the probe is in internal 7-10, and the external screw thread of probe and probe fixing base inlayer all have the degradation of certain degree, and the texture becomes loose, when back is twisted out again, changes and twists out.

The circumference of the vascular cannula is divided into 2 sections or 3 sections, and when the vascular cannula is 2 sections, the two sections are both rigid structures and are hoop structures, as shown in fig. 5 and 6; when the number of the segments is 3, the segments are sequentially arranged in a rigid-flexible-rigid mode and are fixed on the blood vessel through clamping structures on rigid structures on two sides. When the blood vessel sleeve is arranged in a rigid-flexible-rigid mode, the blood vessel sleeve can be attached to the outer wall of a blood vessel better due to certain elasticity of the flexible structure.

The material of the blood vessel sleeve can be polylactic acid (PLA), polyglycolic acid (PGA) and polylactic glycolic acid.

The probe is provided with awrench 1. For rotating the probe. Still including seam seat and firm cover, seam seat and firm cover all registrate in the outside of probe protective sheath layer, and sew up fixed connection between seat and the firm cover, seam seat and/or firm sheathe in and all be provided with the block fixed knot structure of probe protective sheath.

As shown in fig. 3, thesewing seat 3 is provided with a plurality of sewing holes 10, and the plurality of sewing holes are arranged along the circumferential direction of the sewing seat.

As shown in fig. 4, the clamping and fixing structure comprises a clampingjaw 13, a first groove and asecond groove 14, the first groove is arranged on the inner wall of the stabilizing sleeve, thesecond groove 14 is arranged on the outer wall of the probe protecting sleeve, the openings of the first groove and thesecond groove 14 are opposite, the inner wall of the first groove is an arc-shaped inner wall, and the arc-shaped inner wall is provided with a clampingtooth 12;

the clampingjaw 13 at least comprises a rotary fixed end, a first clamping end and a second clamping end, the clamping jaw is connected to the inner wall of the stabilizing sleeve and/or the sewing seat through the rotary fixed end, the first clamping end is matched with the clamping teeth on the inner wall of the first groove, and the second clamping end is matched with the second groove.

The second groove comprises a plane inner wall section and an arc inner wall section, and the second clamping end is matched with the plane inner wall section.

The jack catch, first recess and second recess all set up along the axial.

By adopting the arrangement mode, the probe can be allowed to slide relative to the stabilizing seat and the suturing seat at a certain distance, the probe cannot be allowed to rotate relative to the stabilizing seat and the suturing seat, and the mutual position relation between the suturing seat and the probe can be conveniently adjusted when the probe is fixed.

As shown in fig. 3, the sewing seat is provided with indication marks, and the indication marks comprise a screwing-outarrow 15 and apositioning arrow 11.

Set up and screw outarrow point 15, can indicate medical personnel's the direction of rotation of probe, set uplocation arrow point 11, be convenient for indicate medical personnel's the number of revolutions of probe to in judging to screw out probe from the probe fixing base completely. The number of turns of rotation can be confirmed by judging the number of turns of rotation of the wrench on the probe, on the premise that the number of turns of the probe screwed into the probe fixing seat is known.

The diameter ratio of the length of theblood vessel sleeve 8 to the blood vessel is 5-20: 1. can effectively prevent the blood vessel from being damaged by the torsional acting force of theblood vessel sleeve 8.

A method of using a blood flow dynamics monitor, comprising the steps of:

injecting a set amount of couplant into the bottom of the inner layer 9 of the probe fixing seat, screwing the end part of the probe into the probe fixing seat, and contacting the couplant;

sleeving a blood vessel sleeve on the outer side of the anastomosed blood vessel;

moving the suturing base to a proper position along the probe, suturing the suturing base on the skin, fixing the probe at a specific position through the suturing base, and enabling the other end of the probe to be in signal connection with the Doppler detector; the blood flow signal in the vessel is detected by a doppler detector.

In order to prevent the probe from sliding outwards from the fixing seat, the probe can be stuck on the sewing seat through the medical adhesive tape, and then the probe is further fixed to prevent the probe from rotating or moving along the axial direction.

After blood vessel blood flow monitoring finishes, take off medical adhesive tape, rotate the spanner according to the instruction direction of the arrow point that unscrews on the sewing seat, record the number of turns of outwards unscrewing under the instruction effect of location arrow point, after the probe is unscrewed from the probe fixing base completely, take off the sewing seat from the skin, pull out the probe simultaneously, can.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

Translated fromChinese

1.一种血流动态监测器，其特征在于：包括血管套管、探头固定座和探头，其中，1. a blood dynamic monitor, is characterized in that: comprise vascular sleeve, probe holder and probe, wherein,所述血管套管用于套合于吻合后的血管上；The blood vessel cannula is used to fit on the blood vessel after anastomosis;探头固定座固定于所述血管套管的外壁，其包括探头固定座外层和探头固定座内层，探头固定座内层设置于探头固定座外层的内侧，探头固定座内层的中部设置有柱形凹槽，柱形凹槽的侧壁设置有内螺纹；The probe holder is fixed on the outer wall of the vascular sleeve, which includes an outer layer of the probe holder and an inner layer of the probe holder, the inner layer of the probe holder is arranged on the inner side of the outer layer of the probe holder, and the middle of the inner layer of the probe holder is arranged There is a cylindrical groove, and the side wall of the cylindrical groove is provided with an internal thread;探头包括导丝和防护套，防护套套于导丝的外侧，探头一端的防护套设置有外螺纹，用于与所述柱形凹槽的内螺纹配合设置，探头的另一端用于与多普勒监测仪连接；The probe includes a guide wire and a protective sleeve. The protective sleeve is sleeved on the outer side of the guide wire. The protective sleeve at one end of the probe is provided with an external thread, which is used to cooperate with the internal thread of the cylindrical groove. Le monitor connection;血管套管和探头固定座均由可降解材质制成，且探头固定座内层的降解速率大于探头固定座外层的降解速率。Both the blood vessel cannula and the probe holder are made of degradable materials, and the degradation rate of the inner layer of the probe holder is greater than the degradation rate of the outer layer of the probe holder.2.根据权利要求1所述的血流动态监测器，其特征在于：探头固定座外层的材质为聚-L-乳酸、聚-DL-乳酸、聚乙交酯或聚丙交酯、多聚左旋乳酸、PDS、聚甘醇碳酸或PCL；2. The hemodynamic monitor according to claim 1 is characterized in that: the material of the outer layer of the probe holder is poly-L-lactic acid, poly-DL-lactic acid, polyglycolide or polylactide, polymer L-lactic acid, PDS, polyglycol carbonate or PCL;进一步的，头固定座内层的材质为聚乳酸、聚乙醇酸、聚羟基乙酸或聚乳酸羟基乙酸；Further, the material of the inner layer of the head holder is polylactic acid, polyglycolic acid, polyglycolic acid or polylactic acid glycolic acid;进一步的，探头端部的防护套外侧的外螺纹的材质为聚乳酸、聚乙醇酸、聚羟基乙酸或聚乳酸羟基乙酸。Further, the material of the external thread on the outer side of the protective sheath at the probe end is polylactic acid, polyglycolic acid, polyglycolic acid or polylactic acid glycolic acid.3.根据权利要求1所述的血流动态监测器，其特征在于：所述血管套管的周向分为2段或3段，当为2段时，两段均为刚性结构，为抱箍结构；当为3段时，依次为刚性-柔性-刚性设置，通过两侧刚性结构上的卡合结构固定于血管上。3. The blood flow dynamic monitor according to claim 1, wherein the circumferential direction of the vascular sleeve is divided into 2 sections or 3 sections, and when it is 2 sections, both sections are rigid structures, which are for holding Hoop structure; when it has three sections, it is set in order of rigidity-flexibility-rigidity, and is fixed to the blood vessel through the engaging structures on the rigid structures on both sides.4.根据权利要求1所述的血流动态监测器，其特征在于：所述探头上设置有扳手。4 . The hemodynamic monitor according to claim 1 , wherein a wrench is provided on the probe. 5 .5.根据权利要求4所述的血流动态监测器，其特征在于：还包括缝合座和稳固套，缝合座和稳固套均套合于探头防护套层的外侧，且缝合座与稳固套之间固定连接，缝合座和/或稳固套上均设置有探头防护套的卡合固定结构。5. The hemodynamic monitor according to claim 4, further comprising a suture seat and a stable sleeve, the suture seat and the stable sleeve are both sleeved on the outside of the probe protective cover layer, and the suture seat and the stable sleeve are integrated. The suture seat and/or the stable sleeve are both fixedly connected with each other, and a snap-fit fixing structure of the probe protective sleeve is provided.6.根据权利要求5所述的血流动态监测器，其特征在于：所述缝合座上设置有若干缝合孔，若干缝合孔沿缝合座的周向设置。6 . The hemodynamic monitor according to claim 5 , wherein the suture seat is provided with a plurality of suture holes, and the plurality of suture holes are arranged along the circumference of the suture seat. 7 .7.根据权利要求5所述的血流动态监测器，其特征在于：所述卡合固定结构包括卡爪、第一凹槽和第二凹槽，第一凹槽设置于稳固套和/或缝合座的内壁，第二凹槽设置于探头防护套的外壁，且第一凹槽和第二凹槽开口相对，第一凹槽的内壁为弧形内壁，弧形内壁设置有卡合齿；7 . The blood flow dynamic monitor according to claim 5 , wherein the engaging and fixing structure comprises a claw, a first groove and a second groove, and the first groove is provided on the stable sleeve and/or the second groove. 8 . In the inner wall of the suture seat, the second groove is arranged on the outer wall of the probe protective sleeve, and the openings of the first groove and the second groove are opposite, the inner wall of the first groove is an arc-shaped inner wall, and the arc-shaped inner wall is provided with engaging teeth;所述卡爪至少包括旋转固定端、第一卡合端和第二卡合端，卡爪通过旋转固定端连接至稳固套和/或缝合座的内壁上，第一卡合端与第一凹槽内壁的卡合齿配合设置，第二卡合端与第二凹槽配合设置；The claw at least includes a rotating fixed end, a first engaging end and a second engaging end, the claw is connected to the inner wall of the stable sleeve and/or the suture seat through the rotating fixed end, and the first engaging end is connected to the first concave end. The engaging teeth on the inner wall of the groove are matched and arranged, and the second engaging end is matched with the second groove;再进一步的，所述第二凹槽为弧形凹槽。Still further, the second groove is an arc-shaped groove.8.根据权利要求7所述的血流动态监测器，其特征在于：卡爪、第一凹槽和第二凹槽均沿轴向设置。8 . The blood flow dynamic monitor according to claim 7 , wherein the clamping jaws, the first groove and the second groove are all arranged along the axial direction. 9 .9.根据权利要求5所述的血流动态监测器，其特征在于：所述缝合座上设置有指示标记，指示标记包括旋出箭头和定位箭头。9 . The hemodynamic monitor according to claim 5 , wherein an indicator mark is provided on the suture seat, and the indicator mark includes a screw-out arrow and a positioning arrow. 10 .10.根据权利要求1所述的血流动态监测器，其特征在于：血管套管的长度与血管的直径比为5-20：1。10 . The hemodynamic monitor according to claim 1 , wherein the ratio of the length of the vascular sleeve to the diameter of the blood vessel is 5-20:1. 11 .

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