CN208725799U - Push rod and embolization system - Google Patents

Abstract

The utility model provides a kind of push rod and embolization system, Faradaic current circuit can be formed in the case where connecting power supply by first conductive layer and second conductive layer, without avoiding and thus giving patient's bring pain again to patient skin insertion conductive pin to form Faradaic current circuit；Simultaneously as decreasing operating procedure without being inserted into conductive pin, reducing operation difficulty；Further, the distance of the electrolysis zone and first conductive layer that are electrolysed is very small, so that entire Faradaic current circuit is time-consuming short and stablizes, the time needed for thereby reducing implantation material release, improves the release efficiency of implantation material.

Description

Push rod and embolization system

Technical field

The utility model relates to the field of medical instrument technology, in particular to a kind of push rod and embolization system.

Background technique

Intracranial aneurysm is that entocranial artery blood vessel partial wall as caused by the factors such as congenital anomaly or the damage day after tomorrow is damaged, Under haemodynamics load and other factors effect, the abnormal bulging that gradually forms.The illness of intracranial aneurysm in crowd Rate is 1%~7%, which looks back derived from postmortem or angiography data, and result difference is related with research mode, retrospective to grind The aneurysm incidence for studying carefully report is often lower, is 0.2%~0.4%；And the incidence of perspective study report is higher, is 6%~9%.Aneurysm can betide any age, and 40~60 years old common, but there are apparent region and ethnic differences for its incidence It is different.Having intracranial aneurysm illness rate in research prompt asian population is 2.5%~3.0%.

Guglielmi cooperates with engineers and technicians within 1991, has developed Guglielmi Detachable Coils GDC treatment entocranial artery Tumor.The implantation material material of the distal end GDC is platinum, is connected with push rod, and implantation material is imported blood vessel and is transported to by microtubular The aneurysm diseased region of the cerebral artery of tortuous complexity, implantation material and push rod connected component are molten disconnected because of electrolysis, implantation material solution Take off and stay it is intracavitary in aneurysm tumor, thus prevent blood flow flow into aneurysm.Since starting for aneurysm interventional therapy, people The safety and validity of this new therapeutic means are just being paid close attention to always.The development of evidence-based medicine EBM also necessarily leads to comparative study Appearance, before international subarachnoid hemorrhage Therapy study ISAT, aneurysmal interventional therapy be only limitted to those open cranium folder The aneurysm of high risk is closed, and after the short-term and long-term results of ISAT research are delivered, aneurysmal interventional therapy is no longer opened Cranium presss from both sides the candidate means closed, and becomes preferred one for the treatment of method.

In the prior art, Guglielmi Detachable Coils working principle referring to FIG. 1, release 101 anode and push rod 102 are connected, and the cathode of release 101 is connected with conductive pin 103, due to the electrolysis means between implantation material 104 and push rod 102 It is easy to be electrolysed and divided when charging in the presence of solion (such as blood or other body fluid), when electrolysis means are from micro- In the case that 105 distal end of conduit is left and is exposed in solion, and conductive pin 103 is inserted into patient skin, release is opened 101 power supply, push rod 102 and conductive pin 103 are formed into a loop, and electrolysis means are divided due to electrolysis, and implantation material 104 is freed simultaneously It stays in aneurysm.

Currently, the prominent question for Guglielmi Detachable Coils is: 1, conductive pin needs to be inserted into patient skin, and at least big In 10mm, pain is brought to patient；2, forming circuit needs long path between the anode and cathode of release, causes to plant The time for entering the electrolysis means division between object and push rod extends；3, operating procedure is more and cumbersome: for example, conductive pin is worn Thorn, release anode is connected with push rod, release cathode is connected with conductive pin, release switch button is opened, electrolysis means Release anode and push rod separate after the completion of division, release cathode and conductive pin separate, can after the completion of this series of steps It is placed in aneurysm with completing an implantation material, and averagely clogs 5~6 spring ring implantation materials in aneurysm at present, be bound to Extend the time and increases the operation difficulty of surgical and the probability of error.

Utility model content

One of the purpose of this utility model is to provide a kind of push rod and embolization system, to solve to discharge in the prior art Implantation material needs conductive pin to be inserted into patient skin, and the problem of pain is brought to patient；The two of the purpose of this utility model are to solve The problem of certainly forming circuit needs long path between the anode and cathode of release in the prior art；The utility model The third purpose is to solve the problems, such as that operating procedure is more and cumbersome in the prior art.

In order to solve the above technical problems, the utility model provides a kind of push rod, the push rod includes: the first conductive layer And it is set to the second conductive layer in first conductive layer, second conductive layer and first conductive layer insulation；It is described Second conductive layer includes electrolysis zone, and the electrolysis zone can be disconnected by electrolysis,

After solion is immersed in the electrolysis zone, second conductive layer is connect with the anode of a power supply, and described first Conductive layer is connect with the cathode of the power supply, positive, described second conductive layer, the solion, described of the power supply The cathode of one conductive layer and the power supply forms current loop.

Optionally, in the push rod, the distal end of the proximal end of the electrolysis zone and first conductive layer is described Distance in the axial direction of push rod is less than 5mm.

Optionally, in the push rod, length of the electrolysis zone in the axial direction of the push rod be 0.5mm~ 5mm。

Optionally, in the push rod, second conductive layer further includes the firstth area and the secondth area, firstth area It being connect with the proximal end of the electrolysis zone, secondth area is connect with the distal end of the electrolysis zone, and firstth area is in line-styled, Secondth area is in " J " font, " U " font, " O " font or " T " font.

Optionally, in the push rod, the push rod further includes insulating layer, and the insulating layer is located at described second Between conductive layer and first conductive layer, the insulating layer has the first opening and the second opening, and second opening is compared with institute The first opening is stated close to the proximal end of the push rod；First opening only exposes the electrolysis zone；Second opening is exposed Part second conductive layer.

Optionally, in the push rod, proximal end to the proximal end of the push rod of second opening is pushed away described Sending the distance in the axial direction of bar is 30mm~50mm.

Optionally, in the push rod, second conductive layer the push rod radially with a thickness of 0.1mm~1mm.

The utility model also provides a kind of embolization system, and the embolization system includes: push rod as described above, frees Device, microtubular and plug components, wherein

The plug components are fixed in the push rod, and the push rod can be moved along the inner cavity of the microtubular It is dynamic, the plug components are pushed into predetermined position,

The release includes power supply, first electrode contact and second electrode contact, the first electrode contact with it is described The cathode of power supply connects, and the second electrode contact is connect with the anode of the power supply,

When the release provides voltage to the push rod, the first electrode contact of the release and the push First conductive layer of bar connects, and the second electrode contact of the release is connect with the second conductive layer of the push rod.

Optionally, in the embolization system, the plug components include the connector being fixed in the push rod And the elastic component around the connector, the secondth area of the connector and the push rod link and are fixed by colloid.

Optionally, in the embolization system, the connector is in " J " font, " U " font, " O " font or " T " Font, the elastic component are in basket-style or screw type.

In push rod provided by the utility model and embolization system, pass through first conductive layer and second conduction Layer can form Faradaic current circuit in the case where connecting power supply, without being inserted into conductive pin to patient skin again to form electrolysis electricity Road is flowed back to, avoids and thus gives patient's bring pain；Simultaneously as decreasing operating procedure without being inserted into conductive pin, drop Low operation difficulty；Further, the distance of the electrolysis zone and first conductive layer that are electrolysed is very small, so that whole A Faradaic current circuit is time-consuming short and stablizes, and the time needed for thereby reducing implantation material release, improves the release of implantation material Efficiency.

Detailed description of the invention

Fig. 1 is the operation principle schematic diagram of Guglielmi Detachable Coils in the prior art；

Fig. 2 is a structural schematic diagram of the push rod of the utility model embodiment；

Fig. 3 is another structural schematic diagram of the push rod of the utility model embodiment；

Fig. 4 is the structural schematic diagram of the release of the utility model embodiment；

Fig. 5 is the structural schematic diagram of the embolization system of the utility model embodiment；

Fig. 6 is the structural schematic diagram of the plug components of the utility model embodiment；

Fig. 7 is the connector of the utility model embodiment and the status diagram that push rod links together；

Fig. 8 is a structural schematic diagram of the elastic component of the utility model embodiment；

Fig. 9 is another structural schematic diagram of the elastic component of the utility model embodiment；

Figure 10 is the current loop schematic diagram of the plug components of the utility model embodiment；

Wherein, 101- release；102- push rod；103- conductive pin；104- implantation material；105- microtubular；

20- push rod；The first conductive layer of 21-；The second conductive layer of 22-；The electrolysis zone 220-；The firstth area 221-；222- second Area；23- insulating layer；230- first is open；231- second is open；

30- release；300- first electrode contact；301- second electrode contact；

40- plug components；41- connector；42- elastic component.

Specific embodiment

Below in conjunction with the drawings and specific embodiments to the utility model proposes push rod and embolization system make further it is detailed It describes in detail bright.According to following explanation and claims, will be become apparent from feature the advantages of the utility model.It should be noted that attached Figure is all made of very simplified form and using non-accurate ratio, only to convenient, lucidly aid illustration is originally practical new The purpose of type embodiment.In addition, the structure that attached drawing is shown is often a part of practical structures.Particularly, each attached drawing needs The emphasis of displaying is different, uses different ratios sometimes.

In present specification, " proximal end " and " distal end " is from using doctor's angle of the medical instrument to carry out read fortune for that This element or the relative bearing of movement, relative position, direction, although " proximal end " and " distal end " not be it is restrictive, " proximal end " is often referred to the Medical Devices in course of normal operation close to one end of doctor, and " distal end " typically refers to initially enter One end of patient's body.

Referring to FIG. 2, its structural schematic diagram for the push rod of the utility model embodiment.As shown in Fig. 2, in the application In embodiment, the push rod 20 includes: the first conductive layer 21 and the second conductive layer for being set in first conductive layer 21 22, second conductive layer 22 and first conductive layer 21 insulate；Second conductive layer 22 includes electrolysis zone 220, described Electrolysis zone 220 can be disconnected by electrolysis.Here, can be even by first conductive layer 21 and second conductive layer 22 Formation Faradaic current circuit under power supply is connect, without keeping away again to patient skin insertion conductive pin to form Faradaic current circuit Exempt from thus to give patient's bring pain；Simultaneously as decreasing operating procedure without being inserted into conductive pin, reducing operation Difficulty.

In the embodiment of the present application, after solion (such as blood) is immersed in the electrolysis zone 220, described second is conductive Layer 22 is connect with the anode of a power supply, when first conductive layer 21 is connect with the cathode of the power supply, the anode of the power supply, Second conductive layer 22, the solion, first conductive layer 21 and the power supply cathode be capable of forming electric current and return Road.The electrolysis zone 220 can occur to be electrolysed and be broken as a result,.

In the embodiment of the present application, the generally cylindrical straight-bar of the push rod 20, can have not from proximate Same diameter.For example, the diameter of the proximal end of the push rod 20 be greater than distal end diameter, thus be conducive to the push rod 20 for The push of implantation material.Specifically, the diameter of the push rod 20 is segmented into multistage, for example, from proximal end to being distally divided into three sections, Wherein, one section of the diameter close to proximal end is maximum, and one section of the diameter close to distal end is minimum, and the diameter of interlude is also between maximum Among minimum.For another example, the diameter of the push rod 20 can be gradation type, be gradually reduced from proximate.

Preferably, second conductive layer 22 the push rod 20 radially with a thickness of 0.1mm~1mm.For example, Second conductive layer 22 the push rod 20 radially with a thickness of 0.2mm, 0.3mm, 0.5mm, 0.7mm or 0.9mm etc..Further, second conductive layer 22 can be conductive filament, conducting rod, contact tube or conductive mesh etc.；It is described First conductive layer 21 can also be conductive filament, conducting rod, contact tube or conductive mesh etc..

In the embodiment of the present application, the material of second conductive layer 22 and first conductive layer 21 is metal, excellent Choosing, the material of second conductive layer 22 and first conductive layer 21 is one of stainless steel, tungsten, Jin Heyin or more Kind, wherein the material of second conductive layer 22 and first conductive layer 21 can be identical or not identical.

Preferably, the axis of the proximal end of the electrolysis zone 220 and the distal end of first conductive layer 21 in the push rod 20 Upward distance is less than 5mm.For example, the proximal end of the electrolysis zone 220 and the distal end of first conductive layer 21 are in the push Distance in the axial direction of bar 20 is 0.2mm, 0.5mm, 0.7mm, 1mm, 1.2mm, 2mm or 2.5mm etc..Here, electricity will occur The distance of the electrolysis zone 220 of solution and first conductive layer 21 is arranged very small, so that entire Faradaic current returns Road is time-consuming short and stablizes, and the time needed for thereby reducing implantation material release, improves the release efficiency of implantation material.

Wherein, the proximal end of the distal end of first conductive layer 21 electrolysis zone 220 is close to the close of the push rod 20 End.I.e. here, first conductive layer 21 is only located at the proximal end side of the electrolysis zone 220.

Further, length of the electrolysis zone 220 in the axial direction of the push rod 20 is 0.5mm~5mm.For example, Length of the electrolysis zone 220 in the axial direction of the push rod 20 be 0.7mm, 1mm, 1.2mm, 2mm, 2.5mm, 2.8mm or 3.2mm waiting.By designing length of the electrolysis zone 220 in the axial direction of the push rod 20, so that described push away Electrolysis quickly can occur in the electrolysis zone 220 after sending bar 20 to connect power supply and disconnect.

With continued reference to FIG. 2, in the embodiment of the present application, second conductive layer 22 further includes the first area 221 and second Area 222, firstth area 221 are connect with the proximal end of the electrolysis zone 220, and secondth area 222 is remote with the electrolysis zone 220 End connection.Here, only second conductive layer 22 is divided for electrolysis zone 220, the first area 221 in the axial direction of the push rod 20 And second area 222.In the embodiment of the present application, the first conductive layer 21 is only provided with outside firstth area 221.

Preferably, firstth area 221 is in line-styled, and secondth area 222 is in " J " font, " U " font, " O " font Or " T " font.Wherein, firstth area 221 is in line-styled, and secondth area 222 is in " J " font, " U " font, " O " word Shape or " T " font refer both to firstth area 221 and secondth area 222 along the axial shape of the push rod 20.It is logical Cross and set line-styled for firstth area 221, secondth area 222 be set as " J " font, " U " font, " O " font or Thus person " T " font can either be convenient for movement, the push to implantation material of the push rod 20, and can be convenient in implantation material Fixation before release to implantation material.

Then, referring to FIG. 3, the push rod 20 further includes insulating layer 23, the insulating layer 23, which is located at described second, is led Between electric layer 22 and first conductive layer 21, to realize the insulation of second conductive layer 22 and first conductive layer 21. In the embodiment of the present application, it is only provided with the first conductive layer 21 outside firstth area 221, therefore, namely passes through the insulation Floor 23 realizes the insulation between firstth area 221 and first conductive layer 21.Wherein, the material of the insulating layer 23 can be with For polytetrafluoroethylene (PTFE).

Specifically, the insulating layer 23 has the first opening 230 and the second opening 231, second opening 231 is relatively described First opening 230 is close to the proximal end of the push rod 20；First opening 230 only exposes the electrolysis zone 220；Described second Be open the second conductive layer 22 described in 231 exposed portion.Here, first opening 230 is only exposed the electrolysis zone 220 and is exposed Whole electrolysis zones 220；First area 221 described in second opening, 231 exposed portion.

Preferably, axial direction of proximal end to the proximal end of the push rod 20 of second opening 231 in the push rod 20 On distance be 30mm~50mm.For example, proximal end to the proximal end of the push rod 20 of second opening 231 is in the push Distance in the axial direction of bar 20 is 33mm, 35mm, 40mm, 42mm, 45mm or 48mm etc..

In the embodiment of the present application, the insulating layer 23, first conductive layer 21 and second conductive layer 22 is close End and the proximal end of the push rod 20 are in same position.That is, the insulating layer 23, first conductive layer 21 and described second The proximal end of conductive layer 22 is fixed together.It, can also only first conductive layer 21 and institute in the other embodiments of the application The proximal end for stating push rod 20 is in same position, and the proximal end of second conductive layer 22 is far from the proximal end of the push rod 20.

Correspondingly, the present embodiment also provides a kind of release, referring to FIG. 4, the release 30 includes power supply (in Fig. 4 Be not shown), first electrode contact 300 and second electrode contact 301, wherein the first electrode contact 300 and the power supply Cathode connection, the second electrode contact 301 just connect in succession with the power supply.In the embodiment of the present application, the first party To for vertical direction.

Further, the cathode of the first electrode contact 300 and the power supply is directly connected to, the second electrode contact 301 are directly connected to the anode of the power supply；Alternatively, the first electrode contact 300 by one switch (being not shown in Fig. 4) with The cathode of the power supply connects, and the second electrode contact 301 is connect by the switch with the anode of the power supply.Exist This, the first electrode contact 300 and the second electrode contact 301 can be directly connected to the power supply simultaneously；Alternatively, institute Stating first electrode contact 300 and the second electrode contact 301 can be connect by a switch with the power supply simultaneously.

Preferably, distance of the second electrode contact 301 in a second direction with the first electrode contact 300 is 30mm~50mm, the second direction and the first direction are vertical.In the embodiment of the present application, the second direction is level Direction.

Correspondingly, the present embodiment also provides a kind of embolization system, referring to FIG. 5, the embolization system includes: as described above Push rod 20, release as described above 30, microtubular (being not shown in Fig. 5) and plug components 40, wherein the embolism portion Part 40 is fixed in the push rod 20, and the push rod 20 can be moved along the inner cavity of the conduit, by the embolism Component 40 pushes to predetermined position (such as intracranial aneurysm is intracavitary), and the release 30 can be provided to the push rod 20 Electric current, so that the electrolysis zone 220 (can accordingly refer to Fig. 2) of the push rod 20 is electrolysed and disconnects.

Specifically, in combination with referring to figs. 2 to Fig. 5, in the embodiment of the present application, when the release 30 is to the push rod When 20 offer voltage, the first electrode contact 300 of the release 30 is connect with the first conductive layer 21 of the push rod 20, institute The second electrode contact 301 for stating release 30 is connect with the second conductive layer 22 of the push rod 20.Here, working as the release 30 do not need to the push rod 20 provide voltage when, the release 30 can be with the separated state of the push rod 20；Only Have when the release 30 needs to provide voltage to the push rod 20,30 ability of release connects with the push rod 20 It connects, thus can also be convenient for push of the push rod 20 to implantation material (being herein plug components 40).

Wherein, the release 30 is once connect (herein specifically: the first of the release 30 with the push rod 20 Electrode contact blade 300 is connect with the first conductive layer 21 of the push rod 20, the second electrode contact 301 of the release 30 and institute State the second conductive layer 22 connection of push rod 20), the release 30 can provide electric current to the push rod 20, it is possible thereby to Convenient for operation.Alternatively, the release 30 is connect (herein specifically: the first electricity of the release 30 with the push rod 20 Pole contact 300 is connect with the first conductive layer 21 of the push rod 20, the second electrode contact 301 of the release 30 with it is described Second conductive layer 22 of push rod 20 connects) after, the switch being closed on the release 30 can make the release 30 provide electric current to the push rod 20, it is possible thereby to guarantee the accuracy for the time that electric current provides.

Then, referring to FIG. 6, it is the structural schematic diagram of the plug components of the utility model embodiment.As shown in fig. 6, In the embodiment of the present application, the plug components 40 include connector 41 and the elastic component 42 around the connector 41.It is preferred that , the plug components 40 have radiopaque and electropositive surface, so as to stable combination or are adhered to specific implantation In position, such as aneurysmal sack etc..Preferably, the material of the plug components 40 be one of platinum, tungsten, tantalum, nickel and titanium or A variety of alloys.

Further, the second area 222 of the connector 41 and the push rod 20 links and is fixed by colloid, In, the colloid can be UV glue, epoxy glue etc..Intersected by the connector 41 and the second area 222 of the push rod 20 It links and is fixed using colloid, the connector 41 can be made securely, to be reliably fixed together with the push rod 20.

Further, the connector 41 can be in " J " font, " U " font, " O " font or " T " font.In this Shen Please be in embodiment, secondth area 222 is also in " J " font, " U " font, " O " font or " T " font.It both as a result, can be with Intersect well and links together.For example, the connector 41 is in " U " as shown in fig. 7, secondth area 222 is in " J " font Font, thus the two can be very good to intersect and link together.For another example, secondth area 222 is in " O " font, the connector 41 is T-shaped, and thus the two can also intersect well links together.After being fixed again by colloid, it can make described Connector 41 securely, is reliably fixed together with the push rod 20.

Fig. 8 and Fig. 9 are please referred to, is the structural schematic diagram of the elastic component of the utility model embodiment.Implement in the application In example, the elastic component 42 can be basket-style or screw type.Wherein, the elastic component 42 can use existing any one Mode is formed, and the application is not construed as limiting this.For example, the elastic component 42 can be made in the following way: being 0.010 in diameter Coiling level-one coil (can be made of diameter of 0.00175 inch of platinum alloy coil) on the metal mandrel of inch；By coiling Good level-one coil is worked out according to pre-set shape, forms " Ω " (complexity) basket-style；Wherein, " Ω " (complexity) basketry In type, the angle between two adjacent rings (LOOP) is preferably 90 °.For another example, the elastic component 42 can be made in the following way: Coiling level-one coil (the platinum alloy coil system that can be 0.002 inch by diameter on the metal mandrel that diameter is 0.012 inch At)；It will be worked out around the level-one coil made according to pre-set shape, form screw type；Wherein, adjacent in screw type Angle between two circles (LOOP) is 180 °.

Here, electrolysis electricity can be formed in the case where connecting power supply by first conductive layer 21 and second conductive layer 22 Road is flowed back to, without avoiding and thus bringing to patient again to patient skin insertion conductive pin to form Faradaic current circuit Pain；Simultaneously as decreasing operating procedure without being inserted into conductive pin, reducing operation difficulty；Further, occur The distance of the electrolysis zone 220 of electrolysis and first conductive layer 21 is very small, so that entire Faradaic current circuit time-consuming is short And stablize, the time needed for thereby reducing implantation material release, improve the release efficiency of implantation material.

Further, the present embodiment also provides a kind of application method of above-mentioned embolization system, the use of the embolization system Method includes:

Plug components are pushed into predetermined position, at this point, the solion (solion is immersed in the electrolysis zone of push rod It can be blood, or various acid, alkalinity or neutral solution, such as physiological saline etc.)；

Release provides electric current to the push rod, so that the electrolysis zone of the push rod is electrolysed and disconnects.

Specifically, referring to FIG. 10, it is the current loop schematic diagram of the plug components of the utility model embodiment.At this Apply in embodiment, after release 30 provides electric current to the push rod 20, the flow direction of entire current loop are as follows: positive pole → 301 → the second conductive layer 22 of second electrode contact is (from the proximal end connecting with the second electrode contact 301 to the electrolysis zone 220) → solion → first conductive layer 21 (proximally from distal end) → first electrode 300 → power cathode of contact.Here, by The electrolysis that electric current generates is provided to the push rod 20 in release 30, can make the electrolysis zone of the push rod 20 220 are electrolysed and disconnect.In the application method of above-mentioned embolization system provided by the embodiments of the present application, release 30 is to the push Bar 20 provides when a length of 1s~10s of electric current.Since the distance of the electrolysis zone 220 and first conductive layer 21 that are electrolysed is non- It is often small, so that entire Faradaic current circuit time-consuming short (only needing 1s~5s herein) and stabilization, thereby reduce plant Time needed for entering object release, improve the release efficiency of implantation material.

In the embodiment of the present application, the application method of the embolization system further include: withdraw the push rod 20.Thus it is Complete the implantation for a plug components 40；Then, the push rod 20 can be along conduit by second plug components 40 are pushed to predetermined position, at this point, solion is immersed in the electrolysis zone 220 of push rod 20, release 30 is to the push rod 20 Electric current is provided, it can be so that the electrolysis zone 220 of the push rod 20 be electrolysed and disconnects, so that second plug components 40 be planted Enter to predetermined position.It is subsequent to repeat again, so that more plug components 40 are implanted to predetermined position.

In the embodiment of the present application, release 30 can be real by the following two kinds mode to the push rod 20 offer electric current It is existing:

First conductive layer 21 of mode one, once the first electrode contact 300 of the release 30 and the push rod 20 Connection, the second electrode contact 301 of the release 30 are connect with the second conductive layer 22 of the push rod 20, the release 30 just provide electric current to the push rod 20.Under such mode be the release 30 once and the push rod 20 connect once to The push rod 20 provides electric current, can be in order to operating.

Mode two, the first electrode contact 300 when the release 30 and the first conductive layer 21 company of the push rod 20 It connects, after the second electrode contact 301 of the release 30 is connect with the second conductive layer 22 of the push rod 20, the release 30 close the switch, and 30 ability of release provides electric current to the push rod 20.It is 30 He of release under such mode After the push rod 20 connects, it is also necessary to which the switch being closed on the release 30 can make the release 30 to institute It states push rod 20 and electric current is provided, it is possible thereby to guarantee the accuracy for the time that electric current provides.

To sum up, conductive by described first in push rod provided by the embodiment of the utility model and embolization system Layer and second conductive layer can form Faradaic current circuit in the case where connecting power supply, without leading again to patient skin insertion Acusector avoids to form Faradaic current circuit and thus gives patient's bring pain；Simultaneously as without being inserted into conductive pin, Reduce operating procedure, reduces operation difficulty；Further, the distance of the electrolysis zone and first conductive layer that are electrolysed It is very small, so that entire Faradaic current circuit is time-consuming short and stablizes, the time needed for thereby reducing implantation material release, mention The high release efficiency of implantation material.

Foregoing description is only the description to the utility model preferred embodiment, not to any limit of the scope of the utility model Fixed, any change, the modification that the those of ordinary skill in the utility model field does according to the disclosure above content belong to right and want Seek the protection scope of book.

Claims (10)

1. a kind of push rod, which is characterized in that the push rod includes: the first conductive layer and is set in first conductive layer The second conductive layer, second conductive layer and first conductive layer insulation；Second conductive layer includes electrolysis zone, described Electrolysis zone can be disconnected by electrolysis,

After solion is immersed in the electrolysis zone, second conductive layer is connect with the anode of a power supply, and described first is conductive Layer is connect with the cathode of the power supply, and positive, described second conductive layer of the power supply, the solion, described first are led The cathode of electric layer and the power supply forms current loop.

2. push rod as described in claim 1, which is characterized in that the proximal end of the electrolysis zone and first conductive layer it is remote The distance in the axial direction of the push rod is held to be less than 5mm.

3. push rod as described in claim 1, which is characterized in that length of the electrolysis zone in the axial direction of the push rod For 0.5mm~5mm.

4. push rod as described in claim 1, which is characterized in that second conductive layer further includes the firstth area and the secondth area, Firstth area is connect with the proximal end of the electrolysis zone, and secondth area is connect with the distal end of the electrolysis zone, firstth area In line-styled, secondth area is in " J " font, " U " font, " O " font or " T " font.

5. push rod as described in claim 1, which is characterized in that the push rod further includes insulating layer, the insulating layer position Between second conductive layer and first conductive layer, the insulating layer has a first opening and the second opening, and described the Two openings more described first are open close to the proximal end of the push rod；First opening only exposes the electrolysis zone；Described Second conductive layer described in two opening exposed portion.

6. push rod as claimed in claim 5, which is characterized in that proximal end to the proximal end of the push rod of second opening Distance in the axial direction of the push rod is 30mm~50mm.

7. such as push rod according to any one of claims 1 to 6, which is characterized in that second conductive layer is in the push Bar radially with a thickness of 0.1mm~1mm.

8. a kind of embolization system, which is characterized in that the embolization system includes: to push away as according to any one of claims 1 to 7 Send bar, release, microtubular and plug components, wherein

The plug components are fixed in the push rod, and the push rod can be moved along the inner cavity of the microtubular, with The plug components are pushed into predetermined position,

The release includes power supply, first electrode contact and second electrode contact, the first electrode contact and the power supply Cathode connection, the positive of the second electrode contact and the power supply connect,

When the release provides voltage to the push rod, first electrode contact and the push rod of the release The connection of first conductive layer, the second electrode contact of the release are connect with the second conductive layer of the push rod.

9. embolization system as claimed in claim 8, which is characterized in that the plug components include connector and around the company Secondth area of the elastic component of fitting, the connector and the push rod links and is fixed by colloid.

10. embolization system as claimed in claim 9, which is characterized in that the connector is in " J " font, " U " font, " O " word Shape or " T " font, the elastic component are in basket-style or screw type.