CN208927393U - A kind of adjustable perfusion system and perfusion conduit - Google Patents
A kind of adjustable perfusion system and perfusion conduit Download PDFInfo
- Publication number
- CN208927393U CN208927393U CN201820360740.XU CN201820360740U CN208927393U CN 208927393 U CN208927393 U CN 208927393U CN 201820360740 U CN201820360740 U CN 201820360740U CN 208927393 U CN208927393 U CN 208927393U
- Authority
- CN
- China
- Prior art keywords
- tube body
- lumen
- conduit
- pressure
- adjustable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model provides a kind of adjustable perfusion system, and the adjustable perfusion system includes conduit and pressure-regulating device, wherein the conduit includes tube body and lumen；There are multiple side openings, the multiple side opening is adapted so that internal blood flows into the lumen on the tube body；The proximal part of the tube body has proximal end bore, and the proximal end bore is adapted so that extracorporeal liquid flows into the lumen；The distal portions of the tube body have remote stomidium, and the remote stomidium is adapted so that the internal blood and the extracorporeal liquid flow out the lumen；The pressure-regulating device is connected to the proximal end bore, for adjusting the pressure of the extracorporeal liquid.The utility model adjusts the injection pressure of extracorporeal liquid by pressure-regulating device, or the area of open side opening is adjusted by adjusting seal wire, flow into embolic occlusion section distal end perfusion blood flow gradually increase, realize it is gradual excessively, avoid blood flow and restore the damage caused by blood vessel suddenly.
Description
Technical field
The utility model relates to a kind of medical catheters, more particularly, to a kind of adjustable perfusion system for thrombus
With perfusion conduit.
Background technique
Acute arterial embolism is a kind of common disease, and the most familiar is acute myocardial infarction and acute cerebral infarction.It is practical
On, all arterial systems are likely to that embolism class diseases occur, and embolus the most common is thrombus, and most thrombus are local originals
Because caused by, a small number of thrombus are that the thrombus that remaining place is formed comes along blood flow drift.
The completely plugged artery of acute thrombus (blood flow about 0%), leads to cell hypoxic-ischemic, gradually dead.This is referred to as
For ischemic injuries.Occluded blood vessel is opened in time and restores blood flow (blood flow about 100%), can be saved cell in imminent danger, still, also can
Promote part survivaling cell dead, this is referred to as reperfusion injury.
Existing Reperfu- sion mode is to restore blood flow by partially disintegrating endarterial thrombus, but they are for blood flow
At once the degree restored is impossible to finely regulating.This is because thrombus is collectively formed by a variety of blood constituents, have multiple
The characteristics of polygamy and dynamic evolution.Thrombus suction catheter can pump out the thrombus of different proportion, restore blood flow, this ratio is
It is uncontrollable.Sacculus pressurization squeezes thrombus, and thrombus is partially compressed, but after sacculus is withdrawn, pressure disappears, itself has elasticity
Thrombus can part restore, this ratio is also uncontrollable.Under current this mode, blood vessel amount is restored to 100% from 0%
Process be a uncontrollable process.
Numerous results of animal show that reperfusion injury is related with the mode of Reperfu- sion, are restored to suddenly from 0%
100% is harmful.Finding the method that can reduce reperfusion injury has lasted many decades, may currently, there are two types of methods
It is feasible.The first, adjusts the controlled reperfusion of blood physical parameter, by controlling the physical parameter of Reperfu- sion, such as temperature, pressure
Power, flow, mode etc. realize the gradual transition from 0% to 100%.Second, adjust the controlling of blood chemistry parameter again
Perfusion increases the drug of protection cardiac muscle cell such as possible harmful ingredients certain in antagonism blood.Drug can be directly injected into
Into the coronary artery for causing problem, this local administration mode can be improved drug concentration and reach better effect, while
The systemic side effects that drug can be reduced are ideal selections, far superior to simple through peripheral vein administration mode.
Adjusting the controlled reperfusion of blood the physical-chemical parameters in the prior art mainly includes perfusion balloon catheter, OTW sacculus
And thrombus suction catheter.
Perfusion balloon catheter: perfusion balloon catheter refers to there is fill orifice in balloon proximal and distal end, between proximal end bore and remote stomidium
There is cavity to be connected, in this way, the blood flow in proximal vessel can still enter the perfusion of proximal end when balloon expandable blocks intravascular blood flow
Hole, the fill orifice of distal end is reached by connected cavity, then is flowed into distal vessels, realizes the blood perfusion to distal vessels.
Normal level is not achieved in the degree of this part perfusion, still, with the absolutely not blood perfusion the case where compared with, perfusion balloon catheter band
The part perfusion come reduces the hypoxic-ischemic degree of patient.The shortcomings that perfusion balloon catheter is that (1) opening diameter is fixed, blood flow
Physical parameter be difficult to adjust, or even be not adjustable；(2) it is unable to coronary artery local administration.
Over-the-wire (OTW) sacculus: this is two-chamber bar sacculus, positioned at external tail end of conduit there are two hole, one
Hole is identical as sacculus, and can pressurize dilating sacculus, realizes the expansion of sacculus.Another hole is communicated with conductor housing stomidium, this is logical
Road both P Passable seal wire, can also pass through tail end hole perfusion liquid into the distal end coronary artery of balloon occlusion after withdrawing seal wire
Body (including blood) is partially similar to perfusion balloon catheter.It is main perfusion the difference is that, the hole of sacculus proximal segment is located at conduit tail
End, outside body rather than in coronary artery.The shortcomings that OTW sacculus is that tail end perfusion liquid is feasible, can be realized most physics ginsengs
The purpose of several and chemical parameters regulation, still, if blood perfusion (final target is still 100% hemoperfusion), mistake
Journey is cumbersome.Because blood needs to extract out in vitro, injected in coronary artery using conduit as required, this cumbersome process
Activation and red blood cell with blood coagulation system it is broken, increase the risk of reperfusion injury instead.
Thrombus suction catheter: being a kind of single-chamber bar conduit, and head end hole is mostly stomidium, positioned at the head end of conduit, tail end hole
Mostly stomidium, positioned at the tail portion of conduit.Compared with OTW sacculus, without balloon system.Usually head end hole is placed near thrombus,
The vacuum suction of tail end hole attracts thrombus to enter conduit by head end hole, flows out from tail end hole.Also it can be reversed operation, pass through
Liquid is injected in tail end hole, and through conduit, head end hole is flowed into the coronary artery of occlusion section distal end.The shortcomings that thrombus suction catheter with
OTW sacculus is similar.In addition, when external tail end enhancing perfusion, head-end flow increases, institute perfusion area because not having balloon system
Domain pressure rise, in fact it could happen that occlusion section remote pressure is higher than proximal pressure (proximal pressure pressure in aorta)
Possibility, then, thrombus has the risk moved to the near end.
Therefore, it is necessary to a kind of training equipments, it preferably has the physical parameter or chemical parameters for realizing control liquid
Ability.Meanwhile being frequently experienced in 1~5 minute in view of reperfusion injury, it must also have the ability that can quickly adjust.
Utility model content
Problem to be solved in the utility model is the Modulatory character of blood perfusion parameter when realizing ischemia-reperfusion.
To solve the above-mentioned problems, the utility model provides a kind of adjustable perfusion system, the adjustable perfusion system
Including conduit and pressure-regulating device,
Wherein, the conduit includes tube body and lumen；
There are multiple side openings, the multiple side opening is adapted so that internal blood flows into the lumen on the tube body；
The proximal part of the tube body has proximal end bore, and the proximal end bore is adapted so that extracorporeal liquid flows into the lumen；
The distal portions of the tube body have a remote stomidium, and the remote stomidium is adapted so that the internal blood and described external
Liquid flows out the lumen；
The pressure-regulating device is connected to the proximal end bore, for adjusting the pressure of the extracorporeal liquid.
In an embodiment of the utility model, pass through detachable side between the pressure-regulating device and the proximal end bore
Formula connection.
In an embodiment of the utility model, the removably includes being threadedly coupled.
In an embodiment of the utility model, the conduit further includes operation guidewire lumen, and the operation guidewire lumen is used for
Insertion manipulation seal wire is to guide the conduit to enter thrombi.
It further include the dilatation balloon being attached on tube body in an embodiment of the utility model.
It further include the negative pressure drainage device for being connected to the remote stomidium in an embodiment of the utility model, being used for will
The blood drainage of distal portions is to external.
The utility model also provides a kind of adjustable perfusion conduit, the adjustable perfusion conduit include tube body, lumen and
Adjust seal wire；
The tube body has multiple side openings, and the multiple side opening is adapted so that internal blood flows into the lumen；
The proximal part of the tube body has proximal end bore, and the adjusting seal wire is suitable for entering the pipe by the proximal end bore
Chamber, and when the adjusting seal wire is from the distal portions proximally partial movement of the conduit, so that the opening number of the side opening
Mesh gradually increases；
The distal portions of the tube body have remote stomidium, and the remote stomidium is adapted so that the internal blood flows out the pipe
Chamber.
In an embodiment of the utility model, the multiple side opening is arranged in a straight line, and the diameter phase of each side opening
Together.
In an embodiment of the utility model, the diameter of the multiple side opening is from distally proximally gradually increasing.
It further include the dilatation balloon being attached on tube body in an embodiment of the utility model.
The beneficial effect of technical solutions of the utility model is: compared with prior art, the utility model is adjusted by pressure
Device adjusts the injection pressure of extracorporeal liquid, or the area of open side opening is adjusted by adjusting seal wire, flows into embolic occlusion section
The perfusion blood flow of distal end gradually increases, realize it is gradual excessively, avoid blood flow and restore the damage caused by blood vessel suddenly.
Detailed description of the invention
It is practical to this below in conjunction with attached drawing for the above objects, features, and advantages of the utility model can be clearer and more comprehensible
Novel specific embodiment elaborates, in which:
Fig. 1 is the schematic diagram of the adjustable perfusion system of an embodiment according to the present utility model；
Fig. 2 is schematic diagram of the adjustable perfusion system in thrombi of an embodiment according to the present utility model；
Fig. 3 is the schematic diagram of the adjustable perfusion system of another embodiment according to the present utility model；
Fig. 4 is the schematic diagram of the adjustable perfusion conduit of an embodiment according to the present utility model；
Fig. 5 is schematic diagram of the adjustable perfusion conduit in thrombi of an embodiment according to the present utility model；
Fig. 6 is the schematic diagram of the adjustable perfusion conduit of another embodiment according to the present utility model.
Specific embodiment
It is practical to this below in conjunction with attached drawing for the above objects, features, and advantages of the utility model can be clearer and more comprehensible
Novel specific embodiment elaborates.
Many details are explained in the following description in order to fully understand the utility model, but this is practical new
Type can also be implemented using other different from other way described herein, therefore the utility model is not by following public tool
The limitation of body embodiment.
As shown in the application and claims, unless context clearly prompts exceptional situation, " one ", "one", " one
The words such as kind " and/or "the" not refer in particular to odd number, may also comprise plural number.It is, in general, that term " includes " only prompts to wrap with "comprising"
Include clearly identify the step of and element, and these steps and element do not constitute one it is exclusive enumerate, method or apparatus
The step of may also including other or element.
When liquid flows in pipeline, hydromechanical Poiseuille's law is used to calculate the flow of liquid,
Q=Δ P π r4/8ηl
Wherein Q indicates that the flow of liquid, Δ P indicate the pressure difference at both ends, and r indicates that the cross-sectional area of pipeline, η indicate liquid
The coefficient of viscosity, l indicate pipeline length.Therefore the cross-sectional area of flow and pipeline, the pressure difference and liquid property at both ends have
It closes, the process of perfusion can be controlled by the pressure difference and the cross-sectional area of pipeline for adjusting pipeline.
Embodiment one
The present embodiment is the system by adjusting the pressure difference control perfusion of pipeline.Fig. 1 is according to the present utility model one
The schematic diagram of the adjustable perfusion system 100 of embodiment.Adjustable perfusion system 100 includes conduit 110 and pressure-regulating device
120.Conduit 110 includes tube body 111, lumen 112, multiple side openings 113 and guiding wire chamber 114.
Tube body 111 is preferably shaped to cylinder, to be adapted to the shape of blood vessel, to reduce the loss to blood vessel.Tube body
111 proximal part has proximal end bore 116, and proximal end bore 116 is adapted so that extracorporeal liquid flows into lumen 112 by proximal end bore 116.
The distal portions of tube body 111 have remote stomidium 115, and remote stomidium 115 is adapted so that internal blood and extracorporeal liquid pass through remote stomidium
115 outflow lumens 112.Optionally, adjustable perfusion system 100 may also include a negative pressure device (not shown), can be connected to
Remote stomidium 115, for the blood flow of embolic occlusion distal end to be drained in vitro, negative pressure device can be vacuum pump or other can produce
The device of raw negative pressure.
There are multiple side openings 113 on tube body 111.The position of multiple side openings 113 can be located at the middle section of tube body, Huo Zhezhong
Between part close to proximal part or middle section close to distal portions, depending on the length of thrombus.Internal blood passes through multiple
Side opening 113 flows into lumen 112.The number of side opening 113 is multiple, preferably 3-5.The diameter of multiple side openings 113 can be identical,
It can also be different.Such as aperture is gradually increased from the proximal part distal end portion of tube body 111, or from the proximal end of tube body 111
Part distal end portion is gradually reduced.Multiple side openings 113 can be arranged in a straight line, or be arranged in other arbitrary shapes.
Lumen 112 is the hollow space inside tube body 111.Preferably, the shape one of the shape of lumen 112 and tube body 111
It causes, such as cylindrical.Lumen 112 be it is open, run through entire body portion, and be communicated with the outside.
Pressure-regulating device 120 is connected to the proximal end bore 116 of the proximal part of tube body 111, for adjusting extracorporeal liquid
Injection pressure.Pressure-regulating device 120 can be connected releasably to proximal end bore 116, such as be threadedly coupled or engage and connect
It connects.
Guiding wire chamber 114 is located at the outer wall of tube body 111, and for penetrating guiding wire, conduit is guided to comprising thrombus
Target site.Guiding wire chamber 114 can extend in entire tube body 111, can also extend in the part of tube body 111.Fig. 1 shows
The cross section of guiding wire chamber 114 and lumen 112 is gone out, the length of guiding wire chamber 114 is not limited to be only positioned at shown in Fig. 1
The distal portions of conduit 110.It will be seen from figure 1 that the cross section of lumen 112 and guiding wire chamber 114 is all round, and manage
The caliber of chamber 112 is significantly larger than the caliber of guiding wire chamber 114.
Fig. 2 is schematic diagram of the adjustable perfusion system 100 in thrombi of embodiment according to the present utility model.Such as figure
Shown in 2, conduit 110 enters from the proximal end P (Proximal) of embolic occlusion section, passes through entire thrombus T (Thrombosis), enters
The proximal end bore 116 of the distal end D (Distal) of embolic occlusion section, tube body 111 are located in vitro, and multiple side openings 113 of tube body 111 are located at
In proximal vessel, the remote stomidium 115 of tube body 111 is located at the distal end of embolic occlusion section.
The working principle of adjustable perfusion system is described below.
By proximal end bore 116 be perfused extracorporeal liquid, pressure-regulating device 120 adjust extracorporeal liquid injection pressure, (a) when
When the injection pressure of extracorporeal liquid is more than arterial systolic blood pressure, it is terminated completely by the hemoperfusion that side opening 113 enters conduit, body
Outer liquid flows to embolic occlusion section proximally and distally by proximal end bore 116 and side opening respectively, and the two flow is similar, pressure phase
The very little when, thrombus is mobile a possibility that.(b) when the pressure of extracorporeal liquid is between systolic pressure and diastolic pressure, internal blood and
Extracorporeal liquid alternately enters in conduit, i.e., heart contraction when systolic pressure be more than extracorporeal liquid pressure, blood enters conduit；Heart relaxes
Extracorporeal liquid pressure is more than diastolic pressure when opening, and extracorporeal liquid enters conduit, then flows into embolic occlusion section distal end from remote stomidium 115
Artery.If (c) extracorporeal liquid pressure is lower than diastolic pressure, only internal blood enters conduit by side opening 113, from remote
The artery of the inflow of stomidium 115 embolic occlusion section distal end.
When beginning, pressure-regulating device 120 applies the injection pressure for being greater than systolic pressure, hemoperfusion to extracorporeal liquid
It closes, only the artery of extracorporeal liquid perfusion embolic occlusion section distal end, is then gradually decreased in vitro by pressure-regulating device 120
The injection pressure of liquid, when extracorporeal liquid injection pressure is dropped between systolic pressure and diastolic pressure, extracorporeal liquid and internal blood are handed over
For the artery for entering embolic occlusion section distal end, the injection pressure of extracorporeal liquid is further decreased, extracorporeal liquid pressure drops to diastole
When under pressure, extracorporeal liquid perfusion is closed, and internal blood enters the artery of embolic occlusion section distal end later.As extracorporeal liquid fills
The decline of injection pressure power, flow into blood vessel distal end perfusion blood flow gradually increase, realize it is gradual excessively, it is suddenly extensive to avoid blood flow
It is multiple to be damaged caused by blood vessel.
Embodiment two
Fig. 3 is the schematic diagram of the adjustable perfusion system 200 of another embodiment according to the present utility model.Adjustable perfusion
System 200 includes conduit 210 and pressure-regulating device 220, and conduit 210 and pressure-regulating device 220 are similar to adjustable perfusion
The conduit 110 and pressure-regulating device 120 of system 100, details are not described herein again.
Adjustable perfusion system 200 further includes sacculus 230.Sacculus 230 is attached on tube body 211, spherical in shape or oval.
Fig. 3 shows sacculus 230 and is located between side opening 213 and the remote stomidium 215 of tube body 211, but not limited to this, sacculus 230 may be alternatively located at
The distal end of side opening 213.Sacculus 230 can be inflatable air bag, air bag can be made to expand by injection liquid or gas, liquid
Or gas can be entered inside inflatable air bag by pipeline (not shown), pipeline can be located at the outside of tube body 211,
The inside of tube body 211 can be located at, it is preferable that pipeline is located at the inside of tube body 211, to reduce the size of conduit, and then reduces
Damage to blood vessel.
When adjustable perfusion system 200 enters thrombi, side opening 213 is located at the proximal end of embolic occlusion section, remote stomidium
215 are located at the distal end of embolic occlusion section, and between side opening 213 and remote stomidium 215, sacculus 230 can close sacculus 230 positioned at thrombus
The proximal end of section or the distal end of embolic occlusion section are filled in, after injecting gas or liquid by pipeline, sacculus 230 expands, by embolic occlusion
The proximal end of section and the distal end of embolic occlusion section separate, and can preferably block the flowing of blood, can more precisely control blood flow
That restores is gradual.
Embodiment three
The present embodiment is the adjustable perfusion conduit that can be perfused by adjusting the cross-sectional area control of pipeline.
Fig. 4 is the schematic diagram of the adjustable perfusion conduit 300 of an embodiment according to the present utility model.Adjustable perfusion is led
Pipe 300 includes tube body 310, lumen 320, and side opening 311 adjusts seal wire 330 and seal wire guidewire lumen 340.
Tube body 310 is preferably shaped to cylinder, to be adapted to the shape of blood vessel, to reduce the loss to blood vessel.Tube body
310 proximal part has proximal end bore 360, and proximal end bore 360 is adapted so that extracorporeal liquid flows into lumen 320 by proximal end bore 360.
The distal portions of tube body 310 have remote stomidium 350, and remote stomidium 350 is adapted so that internal blood and extracorporeal liquid pass through remote stomidium
350 outflow lumens 320.Remote stomidium 350 can be connected to a negative pressure device, for the blood flow of embolic occlusion distal end to be drained to body
Outside, negative pressure device can be vacuum pump or other devices that can generate negative pressure.
There are multiple side openings 311, the position of multiple side openings 311 can be located at the middle section of tube body, Huo Zhezhong on tube body 310
Between part close to proximal part or middle section close to distal portions, depending on the length of thrombus, internal blood passes through multiple
Side opening 311 flows into lumen 320.The number of side opening 311 is multiple, preferably 3-5.The diameter of multiple side openings 311 can be identical,
It can also be different, such as aperture is gradually increased from the proximal part distal end portion of tube body 310, or from the proximal end of tube body 310
Part distal end portion is gradually reduced.Multiple side openings 311 can be arranged in a straight line, or be arranged in other arbitrary shapes.
Lumen 320 is the hollow space inside tube body 310, it is preferable that the shape of lumen 320 and the shape one of tube body 310
It causes, such as cylindrical.Lumen 320 is through-hole, has run through entire body portion, and be communicated with the outside.
It adjusts seal wire 330 to be inserted into lumen 320, for closing side opening 311.Adjust being preferably shaped to and managing for seal wire 330
The shape of chamber 320 is consistent, moves in lumen 320 convenient for adjusting seal wire 330.Adjust seal wire 330 diameter preferably and lumen
320 internal diameter is consistent, and to prevent blood perfusion from flowing out from the proximal end of conduit, the efficiency of hemoperfusion can be improved.
Guiding wire chamber 340 is located at the outer wall of tube body 310, and for penetrating guiding wire, the guidance of conduit 300 is extremely included blood
The target site of bolt.Guiding wire chamber 340 can extend in entire tube body 310, can also extend in the part of tube body 310.Fig. 4
The cross section of guiding wire chamber 340 and lumen 320 is shown, the length of guiding wire chamber 340 is not limited to a position shown in Fig. 1
In the distal portions of conduit 310.From Fig. 1 as can be seen that the cross section of lumen 320 and guiding wire chamber 340 is all round, and
And the caliber of lumen 320 is significantly larger than the caliber of guiding wire chamber 340.
Fig. 5 is schematic diagram of the adjustable perfusion conduit 300 in thrombi of an embodiment according to the present utility model.
As shown in figure 5, conduit 300 enters from the proximal end P (Proximal) of embolic occlusion section, entire thrombus T is passed through
(Thrombosis), into the distal end D (Distal) of embolic occlusion section, the proximal end bore 360 of tube body 310 is located at external, tube body 310
Multiple side openings 311 be located in proximal vessel, the remote stomidium 350 of tube body 310 is located at the distal end of embolic occlusion section.
The working principle of adjustable perfusion conduit 300 is described below.
Seal wire 330 will be adjusted to be inserted into the lumen 320 of conduit 300, side opening 311 is all closed, adjusting then will be inserted with
The guidance of conduit 300 of seal wire 330 is to target thrombi, and side opening 311 is entirely closed at this time, without blood from embolic occlusion
The proximal end of section is perfused to the distal end of embolic occlusion section.Move backward and adjust seal wire 330, side opening 311 starts to open, blood start from
The proximal end of embolic occlusion section is perfused to the distal end of embolic occlusion section, moves backward with seal wire 330 is adjusted, the side opening of opening is got over
More, the blood of perfusion is more, until restoration of blood flow is perfused to 100%.
By adjusting the movement of seal wire, it can adjust the open number of side opening, and then adjust the open area of side opening, make side opening
Open area gradually increases, and the blood perfusion being perfused from the proximal end of embolic occlusion section to the distal end of embolic occlusion section also gradually increases
Add, realize it is gradual excessively, avoid blood flow and restore the damage caused by blood vessel suddenly.
Example IV
Fig. 6 is the schematic diagram of the adjustable perfusion conduit 400 of another embodiment according to the present utility model.Adjustable perfusion
Conduit 400 includes tube body 410, lumen 420, side opening 411, adjusting seal wire 430 and seal wire guidewire lumen 440, tube body 410, lumen
420, side opening 411, adjust seal wire 430, seal wire guidewire lumen 440 be similar to tube body 310 shown in Fig. 4, lumen 320, side opening 311,
Seal wire 330 is adjusted, seal wire guidewire lumen 340, details are not described herein again.
Adjustable perfusion conduit 400 further includes sacculus 470.Sacculus 470 is attached on tube body 410, spherical in shape or oval.
Fig. 6 shows sacculus 470 and is located between side opening 411 and the remote stomidium 450 of tube body 410, but not limited to this, sacculus 470 may be alternatively located at
The distal end of side opening 411.Sacculus 470 can be inflatable air bag, air bag can be made to expand by injection liquid or gas, liquid
Or gas can be entered inside inflatable air bag by pipeline (not shown), pipeline can be located at the outside of tube body 410,
The inside of tube body 410 can also be located at, it is preferable that pipeline is located at the inside of tube body 410, to reduce the size of conduit, and then drops
The low damage to blood vessel.
When adjustable perfusion conduit 400 enters thrombi, side opening 411 is located at the proximal end of embolic occlusion section, remote stomidium
Positioned at the distal end of embolic occlusion section, for sacculus 470 between side opening 411 and remote stomidium, sacculus 470 can be located at embolic occlusion section
Proximal end or embolic occlusion section distal end, after injecting gas or liquid by pipeline, sacculus 470 expands, by embolic occlusion section
Proximal end and the distal end of embolic occlusion section separate, and can preferably block the flowing of blood, can more precisely control restoration of blood flow
It is gradual.
Although the utility model is described with reference to current specific embodiment, ordinary skill in the art
Personnel it should be appreciated that more than embodiment be intended merely to illustrate the utility model, be detached from the spirit of the present invention no
In the case of can also make various equivalent change or replacement, therefore, as long as to upper in the spirit of the utility model
State the variation of embodiment, modification will all be fallen in the range of following claims.
Claims (10)
1. a kind of adjustable perfusion system, the adjustable perfusion system includes conduit and pressure-regulating device, which is characterized in that
Wherein, the conduit includes tube body and lumen；
There are multiple side openings, the multiple side opening is adapted so that internal blood flows into the lumen on the tube body；
The proximal part of the tube body has proximal end bore, and the proximal end bore is adapted so that extracorporeal liquid flows into the lumen；
The distal portions of the tube body have remote stomidium, and the remote stomidium is adapted so that the internal blood and the extracorporeal liquid
Flow out the lumen；
The pressure-regulating device is connected to the proximal end bore, for adjusting the pressure of the extracorporeal liquid.
2. adjustable perfusion system according to claim 1, which is characterized in that the pressure-regulating device and the proximal end
It is connected between hole by removably.
3. adjustable perfusion system according to claim 2, which is characterized in that the removably includes that screw thread connects
It connects.
4. adjustable perfusion system according to claim 1, which is characterized in that the conduit further includes operation guidewire lumen,
The operation guidewire lumen is for being inserted into manipulation seal wire to guide the conduit to enter thrombi.
5. adjustable perfusion system according to claim 1, which is characterized in that further include the expanded spheres being attached on tube body
Capsule.
6. adjustable perfusion system according to claim 1, which is characterized in that further include being connected to bearing for the remote stomidium
Press drainage device, for by the blood drainage of distal portions to external.
7. a kind of adjustable perfusion conduit, the adjustable perfusion conduit includes tube body, lumen and adjusting seal wire；Its feature exists
In,
The tube body has multiple side openings, and the multiple side opening is adapted so that internal blood flows into the lumen；
The proximal part of the tube body has proximal end bore, and the adjusting seal wire is suitable for entering the lumen by the proximal end bore,
And when the adjusting seal wire is from the distal portions proximally partial movement of the conduit so that the opening number of the side opening by
It is cumulative to add；
The distal portions of the tube body have remote stomidium, and the remote stomidium is adapted so that the internal blood flows out the lumen.
8. adjustable perfusion conduit as claimed in claim 7, which is characterized in that the multiple side opening is arranged in a straight line, and each
The diameter of the side opening is identical.
9. adjustable perfusion conduit as claimed in claim 7, which is characterized in that the diameter of the multiple side opening is from distal end to close
End gradually increases.
10. adjustable perfusion conduit as claimed in claim 7, which is characterized in that further include the expanded spheres being attached on tube body
Capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820360740.XU CN208927393U (en) | 2018-03-16 | 2018-03-16 | A kind of adjustable perfusion system and perfusion conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820360740.XU CN208927393U (en) | 2018-03-16 | 2018-03-16 | A kind of adjustable perfusion system and perfusion conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208927393U true CN208927393U (en) | 2019-06-04 |
Family
ID=66713831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820360740.XU Active CN208927393U (en) | 2018-03-16 | 2018-03-16 | A kind of adjustable perfusion system and perfusion conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208927393U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251808A (en) * | 2019-07-25 | 2019-09-20 | 汇康（昆山）医疗科技有限公司 | A kind of catheter sheath of the sheath tube body with porous structure |
| CN110668380A (en) * | 2019-10-30 | 2020-01-10 | 苏州克劳丽化妆品有限公司 | Nondestructive filling equipment and method containing solid particle colloid |
| CN116672032A (en) * | 2023-08-03 | 2023-09-01 | 清华大学 | thrombus aspiration catheter |
-
2018
- 2018-03-16 CN CN201820360740.XU patent/CN208927393U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251808A (en) * | 2019-07-25 | 2019-09-20 | 汇康（昆山）医疗科技有限公司 | A kind of catheter sheath of the sheath tube body with porous structure |
| CN110668380A (en) * | 2019-10-30 | 2020-01-10 | 苏州克劳丽化妆品有限公司 | Nondestructive filling equipment and method containing solid particle colloid |
| CN110668380B (en) * | 2019-10-30 | 2021-03-30 | 苏州克劳丽化妆品有限公司 | Nondestructive filling equipment and method containing solid particle colloid |
| CN116672032A (en) * | 2023-08-03 | 2023-09-01 | 清华大学 | thrombus aspiration catheter |
| CN116672032B (en) * | 2023-08-03 | 2024-01-12 | 清华大学 | Thrombus aspiration catheter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109414539B (en) | In vitro life support system | |
| US20060100639A1 (en) | System and method for the treatment of reperfusion injury | |
| US6592567B1 (en) | Kidney perfusion catheter | |
| CA2919981C (en) | Unitary body systems and devices and methods to use the same for retroperfusion | |
| EP1156848B1 (en) | Partial aortic occlusion devices for cerebral perfusion augmentation | |
| US8062283B2 (en) | Methods and apparatus for treating infarcted regions of tissue following acute myocardial infarction | |
| CN208927393U (en) | A kind of adjustable perfusion system and perfusion conduit | |
| US10813648B2 (en) | Systems and methods for effecting the total and partial occlusion of the aorta of a living being | |
| US20020161351A1 (en) | Method and apparatus for treating acute myocardial infarction with selective hypothermic perfusion | |
| US20050015048A1 (en) | Infusion treatment agents, catheters, filter devices, and occlusion devices, and use thereof | |
| US20050004503A1 (en) | Method and apparatus for treating acute myocardial infarction with hypothermic perfusion | |
| JP2021500166A (en) | Systems and methods that selectively occlude the superior vena cava to treat heart disease | |
| CN208573789U (en) | Total aortic arch replacement and bracket elephant trunk technique aorta clamping device | |
| CN107847714A (en) | Lancing system | |
| US11331421B2 (en) | Expandable ECMO extension cannula system | |
| KR101671612B1 (en) | Perfusion device for organ harvest surgery | |
| CN107929920A (en) | Can the double sacculus of filling type aorta clamping | |
| WO2018092139A1 (en) | Intracranial volume adaptor for cerebral blood flow | |
| CN110270001A (en) | A kind of adjustable perfusion system and perfusion conduit | |
| CN107595348A (en) | Total aortic arch replacement and support elephant trunk technique aorta clamping device | |
| CN111437449A (en) | Right heart auxiliary device | |
| CN209405464U (en) | A kind of internal flow controllable ischemia-reperfusion sacculus | |
| CN110755732B (en) | Valve balloon device for regulating and controlling reperfusion blood flow by guide wire and use method | |
| CN208660114U (en) | It can the double sacculus of filling type aorta clamping | |
| CN212214278U (en) | Right heart auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |