TWI703955B - Balloon type electrode catheter - Google Patents
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- TWI703955B TWI703955B TW108112794A TW108112794A TWI703955B TW I703955 B TWI703955 B TW I703955B TW 108112794 A TW108112794 A TW 108112794A TW 108112794 A TW108112794 A TW 108112794A TW I703955 B TWI703955 B TW I703955B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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Abstract
本發明的目的,是在於提供一種氣球型電極導管,其對於所使用之護鞘還有內視鏡的內腔,可以無損於插通性地導入於脈管系統,並且對於病灶組織能夠及於大範圍地進行燒灼治療。 本發明的氣球型電極導管,具備有:外管(10)、及通電用連接器(21)、及氣球(30),其在擴張部(31)的兩端具有頸部(33)、(35)、及內管(41)、及前端頂件(46)、及帶狀電極(51)~(54),其形成於氣球(30)的外表面、及金屬環(60),其內周面以接觸於帶狀電極(51)~(54)的各個前端部之方式裝設於前端側頸部(31)、及導線(70),其前端固定於金屬環(60)的內周面,且其基端固定於通電用連接器(21),藉此將帶狀電極(51)~(54)之各個與通電用連接器(21)電性連接。 The purpose of the present invention is to provide a balloon-type electrode catheter, which can be introduced into the vasculature without impairing the sheath and the lumen of the endoscope, and can reach the lesion tissue Carry out extensive cauterization. The balloon-type electrode catheter of the present invention is provided with an outer tube (10), a connector (21) for energization, and a balloon (30), which has necks (33), ( 35), and the inner tube (41), and the top end piece (46), and the strip electrodes (51) to (54), which are formed on the outer surface of the balloon (30) and the metal ring (60), which The peripheral surface is attached to the front neck (31) and the lead (70) so as to contact the front ends of the strip electrodes (51) to (54), and the front ends are fixed to the inner circumference of the metal ring (60) The base end is fixed to the current-carrying connector (21), thereby electrically connecting the strip electrodes (51) to (54) to the current-carrying connector (21).
Description
本發明,是關於氣球型電極導管,更詳細而言,是關於用以導入於脈管系統,對於脈管及其周圍組織進行高頻燒灼治療的氣球型電極導管。The present invention relates to a balloon-type electrode catheter. More specifically, it relates to a balloon-type electrode catheter that is introduced into the vasculature to perform high-frequency cauterization on the vessel and its surrounding tissues.
作為用以對於脈管及其周圍組織進行高頻燒灼治療之氣球型的電極導管(脈管內燒灼裝置),在以往被介紹有具備:外管(導管軸芯(catheter shaft))、及連接於外管前端的氣球、及插通於外管腔及氣球內部的內管(導引線管腔)、及用以將流體供給至氣球內部而插通於外管腔的腔管(供給管腔)、及用以將已供給至氣球內部的流體予以排出而插通於外管腔的腔管(回流管腔)、以及設置在氣球外表面的表面電極(高頻電極)(請參照後述專利文獻1)。As a balloon-type electrode catheter (intravascular cauterization device) for high-frequency cauterization of the vessel and its surrounding tissues, it has been introduced in the past to have: an outer tube (catheter shaft) and a connection The balloon at the front end of the outer tube, the inner tube (guide wire lumen) inserted into the outer lumen and the inside of the balloon, and the lumen (supply tube) used to supply fluid to the inside of the balloon and inserted into the outer lumen Lumen), a lumen (reflux lumen) for expelling fluid supplied to the inside of the balloon and inserted into the outer lumen, and a surface electrode (high-frequency electrode) provided on the outer surface of the balloon (please refer to the following Patent Document 1).
構成專利文獻1所記載之氣球型電極導管的氣球,係具有進行擴張收縮的擴張部、以及形成於其兩端的頸部,且基端側頸部是被固定在外管,前端側頸部是被固定於內管(導引線管腔)。The balloon constituting the balloon-type electrode catheter described in Patent Document 1 has an expansion part that expands and contracts, and necks formed at both ends of the balloon. The proximal neck is fixed to the outer tube and the distal neck is covered. Fixed to the inner tube (guide wire lumen).
依據專利文獻1所記載的氣球型電極導管,藉由將高頻電流通電於設置在氣球外表面的表面電極,可以對脈管或是其周圍的病灶組織進行高頻燒灼治療。 又,藉由使從腔管(供給管腔)供給至氣球內部的流體在氣球的內部循環,然後從腔管(回流管腔)排出,可以冷卻氣球的內部。 According to the balloon-type electrode catheter described in Patent Document 1, by applying high-frequency current to the surface electrode provided on the outer surface of the balloon, high-frequency cauterization can be performed on the vessel or the surrounding lesion tissue. In addition, the fluid supplied from the lumen (supply lumen) to the inside of the balloon is circulated inside the balloon and then discharged from the lumen (return lumen) to cool the inside of the balloon.
另一方面,在用來將肺靜脈進行電性隔離的氣球型電極導管中,作為將高頻電流通電於形成在氣球外表面的表面電極之形態,是在被固定於導管軸芯前端部的氣球頸部(位在通電用連接器該側之基端側的頸部)裝設金屬環,將表面電極電性連接於該金屬環,並且藉由導線將該金屬環與通電用的連接器電性連接的形態,此形態是由本案發明人所提案(請參照後述專利文獻2)。 [先前技術文獻] [專利文獻] On the other hand, in the balloon-type electrode catheter used to electrically isolate the pulmonary veins, as a form of applying high-frequency current to the surface electrode formed on the outer surface of the balloon, the balloon is fixed to the tip of the catheter shaft core. A metal ring is installed on the neck (neck at the base end side of the side of the power connector) to electrically connect the surface electrode to the metal ring, and the metal ring is electrically connected to the power connector through a wire. The form of sexual connection is proposed by the inventor of this case (please refer to Patent Document 2 mentioned later). [Prior Technical Literature] [Patent Literature]
專利文獻1:日本特表2013-532564號公報 專利文獻2:日本特開2016-185296號公報(特別是第4圖) Patent Document 1: Japanese Special Form No. 2013-532564 Patent Document 2: Japanese Patent Application Laid-Open No. 2016-185296 (especially Figure 4)
[發明所欲解決的問題][The problem to be solved by the invention]
在如專利文獻1所記載之用以對脈管或是其周圍組織進行高頻燒灼治療的氣球型電極導管中,作為將高頻電流通電於形成在氣球外表面的表面電極之形態,為如專利文獻2所記載的形態,亦即,將金屬環裝設在:被固定在外管(導管軸芯)的氣球頸部(基端側頸部),經由該金屬環進行通電。In the balloon-type electrode catheter used to perform high-frequency cauterization on the vessel or its surrounding tissue as described in Patent Document 1, as a form of applying high-frequency current to the surface electrode formed on the outer surface of the balloon, In the mode described in Patent Document 2, a metal ring is attached to a balloon neck (base end side neck) fixed to an outer tube (catheter shaft), and electricity is supplied through the metal ring.
然而,構成如專利文獻1所記載之氣球型電極導管之外管的空腔中,由於內包有用以供導引線插通的內管(導引線管腔)、及用以使冷卻用流體流通的腔管(供給管腔及回流管腔),所以其外徑很大。However, the cavity constituting the outer tube of the balloon-type electrode catheter as described in Patent Document 1 contains an inner tube (guide wire lumen) through which the guide wire can be inserted and used for cooling. The lumen (supply lumen and return lumen) through which fluid flows, so its outer diameter is large.
特別是在利用氣球型電極導管進行贅生物(腫瘤)等之燒灼治療時,為了提高表面電極之周圍組織的冷卻效果,必須增大循環在氣球內部之流體的流量,因此,需要將用以使冷卻用流體流通的腔管大口徑化,伴隨於此,必須更加增大外管的外徑。Especially when the balloon electrode catheter is used for cauterization treatment of neoplasms (tumors), in order to improve the cooling effect of the surrounding tissues of the surface electrode, the flow rate of the fluid circulating in the balloon must be increased. Therefore, it is necessary to use The lumen through which the cooling fluid flows has increased in diameter, and with this, it is necessary to further increase the outer diameter of the outer tube.
並且,在如此之大外徑的外管上固定氣球的基端側頸部,然後進一步地在該基端側頸部裝設金屬環之情形時,將會造成該金屬環的外徑,大大地超過在導入電極導管時由使用的護鞘(sheath)還有內視鏡所限制的外徑(軸芯徑或是包覆徑),在導入氣球型電極導管時,致使該金屬環鉤卡到所使用之護鞘或者內視鏡的開口,而使氣球型電極導管無法插通於此等的內腔。In addition, when the base end neck of the balloon is fixed to the outer tube with such a large outer diameter, and then a metal ring is further installed on the base end neck, the outer diameter of the metal ring will be greatly increased. The ground exceeds the outer diameter (axial core diameter or sheath diameter) restricted by the sheath and endoscope used when the electrode catheter is introduced. When the balloon-type electrode catheter is introduced, the metal ring hook is caught To the opening of the sheath or endoscope used, the balloon electrode catheter cannot be inserted into these cavities.
本發明是基於以上的問題所研創。 本發明的目的,是在於提供一種氣球型電極導管,其對於所使用之護鞘還有內視鏡的內腔,可以無損於插通性地導入於脈管系統,並且對於脈管或是其周圍的病灶組織能夠及於大範圍地進行燒灼治療。 本發明的另一目的,是在於提供一種氣球型電極導管,其可以沿著脈管的圓周方向對該脈管或是其周圍組織均質地進行燒灼治療。 本發明的再另一目的,是在於提供一種氣球型電極導管,其對於氣球內部具有優秀的冷卻效果,進而對於表面電極之周圍的組織具有優秀的冷卻效果。 [用以解決問題之手段] The present invention is developed based on the above problems. The object of the present invention is to provide a balloon-type electrode catheter, which can be introduced into the vasculature without impairing the insertability of the sheath and the lumen of the endoscope, and is suitable for the vessel or its The surrounding lesion tissue can be burned in a large area. Another object of the present invention is to provide a balloon-type electrode catheter, which can uniformly cauterize the vessel or its surrounding tissues along the circumferential direction of the vessel. Yet another object of the present invention is to provide a balloon-type electrode catheter, which has an excellent cooling effect on the inside of the balloon, and further has an excellent cooling effect on the tissue around the surface electrode. [Means to solve the problem]
(1)本發明的氣球型電極導管,是用以導入於脈管系統,對脈管或是其周圍的組織進行高頻燒灼治療的氣球型電極導管,其特徵為具備: 外管,其具有中央腔以及於其周圍複數配置的副腔、和 通電用連接器,其配置於上述外管的基端側、和 氣球,其具有進行擴張收縮的擴張部以及連續於其兩端的頸部,並藉由基端側頸部被固定於上述外管的前端部,使該氣球連接於該外管的前端側、和 內管,其插通於上述外管的上述中央腔,從該中央腔的開口朝上述氣球的內部延伸出而延伸在該氣球的內部,並具有能夠插通導引線的管腔、和 前端頂件,其具有:連通於上述內管之上述管腔的管腔,於上述氣球的內部中連接於上述內管的前端,並且被固定在前端側頸部而朝向上述氣球的外部延伸出去、和 表面電極,其由金屬薄膜所構成,該金屬薄膜是形成在上述擴張部及上述前端側頸部中之上述氣球的外表面、和 金屬環,其藉由使其內周面接觸於上述表面電極的前端部之方式,裝設在上述氣球的上述前端側頸部,而與上述表面電極電性連接、和 導線,其前端固定於上述金屬環的內周面,並延伸在上述氣球的內部及上述外管之任一者的上述副腔,且其基端固定於上述通電用連接器,藉此將上述表面電極與上述通電用連接器電性連接。 (1) The balloon-type electrode catheter of the present invention is a balloon-type electrode catheter that is used to introduce into the vasculature to perform high-frequency cauterization on the vessel or its surrounding tissues, and is characterized by: The outer tube, which has a central cavity and a plurality of auxiliary cavities arranged around it, and A connector for energization, which is arranged on the proximal side of the outer tube, and A balloon that has an expanding portion that expands and contracts and a neck portion that is continuous at both ends, and is fixed to the front end of the outer tube by the base end side neck, so that the balloon is connected to the front end of the outer tube, and The inner tube is inserted into the central cavity of the outer tube, extends from the opening of the central cavity toward the inside of the balloon and extends inside the balloon, and has a lumen capable of inserting a guide wire, and A tip top piece having: a lumen connected to the lumen of the inner tube, connected to the tip of the inner tube in the interior of the balloon, and fixed to the neck of the tip side to extend toward the outside of the balloon ,with A surface electrode, which is composed of a metal thin film formed on the outer surface of the balloon in the expansion portion and the tip side neck, and A metal ring is mounted on the neck of the tip side of the balloon by making its inner peripheral surface contact the tip of the surface electrode, and is electrically connected to the surface electrode, and The leading end of the lead wire is fixed to the inner peripheral surface of the metal ring and extends inside the balloon and the sub-cavity of the outer tube, and the base end is fixed to the electrical connector, thereby connecting the The surface electrode is electrically connected with the above-mentioned energizing connector.
根據如此之構成的氣球型電極導管,由於可以經由金屬環及導線,將形成於氣球外表面的表面電極電性連接於通電用連接器,故可以確實地將高頻電流導通於該表面電極。 藉此,對於脈管或是其周圍的病灶組織能夠及於大範圍地進行燒灼治療。 According to the balloon-type electrode catheter constructed in this way, since the surface electrode formed on the outer surface of the balloon can be electrically connected to the energizing connector via the metal ring and the wire, it is possible to reliably conduct high-frequency current to the surface electrode. In this way, a large-scale cauterization treatment can be performed on the vessel or the surrounding lesion tissue.
又,用以裝設金屬環之氣球的前端側頸部,是固定於前端頂件的頸部,由於相較於被固定在外管之基端側頸部,其外徑格外較小,所以可以使裝設在前端側頸部之金屬環的外徑,小於外管還有基端側頸部的外徑。 藉此,在導入氣球型電極導管時,該金屬環不會發生諸如鉤卡在所使用之護鞘還有內視鏡的開口之情事,故不會損及氣球型電極導管對於護鞘還有內視鏡之內腔的插通性。 In addition, the neck of the front end of the balloon used to install the metal ring is the neck fixed to the top of the front end. Compared with the neck of the base end fixed to the outer tube, the outer diameter of the neck is extremely small. Make the outer diameter of the metal ring installed on the neck of the front end smaller than the outer diameter of the outer tube and the neck of the base end. Therefore, when the balloon-type electrode catheter is introduced, the metal ring will not be caught in the sheath or the opening of the endoscope, so it will not damage the balloon-type electrode catheter’s protection against the sheath. The penetration of the inner cavity of the endoscope.
(2)於本發明的氣球型電極導管中,較佳為:上述表面電極,是以沿著氣球的軸向延伸之方式所形成並沿著該氣球的圓周方向配置成等角度間隔的複數帶狀電極,且使上述金屬環的內周面接觸於上述帶狀電極的各個前端部。(2) In the balloon-type electrode catheter of the present invention, it is preferable that the surface electrode is formed in a manner extending along the axial direction of the balloon and arranged along the circumferential direction of the balloon at equal angular intervals. Shaped electrode, and the inner peripheral surface of the metal ring is brought into contact with each tip portion of the strip electrode.
根據如此之構成的氣球型電極導管,由於可以經由金屬環及導線,將沿著氣球的圓周方向以等角度間隔所形成的複數個帶狀電極的各個,電性連接於通電用連接器,所以對於複數個帶狀電極的各個,可以均等地導通高頻電流,藉此,可以沿著該脈管的圓周方向對脈管或是其周圍的組織進行均質的燒灼治療。According to the balloon electrode catheter constructed in this way, since each of the plurality of strip electrodes formed at equal angular intervals along the circumferential direction of the balloon can be electrically connected to the current-carrying connector via the metal ring and the lead wire, For each of the plurality of strip electrodes, the high-frequency current can be evenly conducted, so that the vessel or the surrounding tissue can be uniformly cauterized along the circumferential direction of the vessel.
(3)於本發明的氣球型電極導管中,較佳為:上述金屬環被施以絕緣被覆。(3) In the balloon-type electrode catheter of the present invention, it is preferable that the metal ring is provided with an insulating coating.
根據如此之構成的氣球型電極導管,可以防止通電時的金屬環成為高溫,而可以避免金屬環之周圍的正常組織發生諸如被燒灼的情事。According to the balloon electrode catheter constructed in this way, it is possible to prevent the metal ring from becoming high temperature when energized, and it is possible to prevent the normal tissue around the metal ring from being burnt.
(4)於本發明的氣球型電極導管中,較佳為: 上述外管所具有之上述副腔的至少1條,是用以將流體供給至上述氣球內部來使該流體流通的流體供給用副腔; 上述外管所具有之上述副腔的至少1條,是用以將已被供給至上述氣球內部的流體從該氣球內部排出,來使該流體流通的流體排出用副腔。 (4) In the balloon-type electrode catheter of the present invention, preferably: At least one of the sub-cavities of the outer tube is a sub-cavity for fluid supply for supplying fluid to the inside of the balloon to circulate the fluid; At least one of the sub-cavities included in the outer tube is a sub-cavity for discharging fluid for discharging the fluid supplied to the inside of the balloon from the inside of the balloon to allow the fluid to circulate.
(5)於上述(4)的氣球型電極導管中,較佳為: 上述氣球的上述擴張部,是內包有:被固定在上述氣球的上述基端側頸部之上述外管的上述前端部; 上述流體供給用副腔的開口,是位在比上述擴張部之軸向的中間位置更靠近前端側, 上述流體排出用副腔的開口,是位在上述擴張部的上述基端或是其近旁。 (5) In the balloon electrode catheter of (4) above, preferably: The expansion portion of the balloon includes: the front end portion of the outer tube fixed to the base end side neck of the balloon; The opening of the sub-cavity for fluid supply is located closer to the tip side than the middle position of the expansion part in the axial direction, The opening of the fluid discharge sub-cavity is located at or near the base end of the expansion part.
根據如此之構成的氣球型電極導管,藉由使朝向氣球內部供給之流體的供給口,與從氣球內部排出之流體的排出口相互地在軸向上改變位置,由於即使在氣球擴張後(內部已被流體充填後),仍可以形成從前端側往基端側之流體的流動,來使該流體於氣球的內部中進行流動,所以可以充分地冷卻氣球的內部,進而充分地冷卻表面電極之周圍的組織。According to the balloon-type electrode catheter configured in this way, the supply port for the fluid supplied to the inside of the balloon and the discharge port for the fluid discharged from the balloon are mutually changed in the axial direction. Even after the balloon is expanded (the inside is already After being filled with fluid), a fluid flow from the tip side to the base side can still be formed to make the fluid flow inside the balloon, so the inside of the balloon can be sufficiently cooled, and the surroundings of the surface electrode can be sufficiently cooled Organization.
(6)於上述(4)及(5)的氣球型電極導管中,較佳為:上述流體供給用副腔的數量是比上述流體排出用副腔的數量還多。(6) In the balloon-type electrode catheters of (4) and (5) above, it is preferable that the number of the fluid supply sub-cavities is greater than the number of the fluid discharge sub-cavities.
根據如上述之構成的氣球型電極導管,可以將氣球的內部維持在一定的壓力(擴張壓力)。According to the balloon-type electrode catheter constructed as described above, the inside of the balloon can be maintained at a certain pressure (expansion pressure).
(7)於本發明的氣球型電極導管中,較佳為: 固定有上述氣球的上述基端側頸部之上述外管的上述前端部的外徑,是比該外管的基端部的外徑還小地形成; 上述氣球的上述基端側頸部的外徑,與上述外管的上述基端部的外徑是實質上相等。 (7) In the balloon-type electrode catheter of the present invention, preferably: The outer diameter of the front end portion of the outer tube to which the base end side neck of the balloon is fixed is formed to be smaller than the outer diameter of the base end portion of the outer tube; The outer diameter of the proximal neck portion of the balloon is substantially equal to the outer diameter of the proximal portion of the outer tube.
根據如此之構成的氣球型電極導管,由於外徑為最大之基端側頸部的外徑是與外管的基端部的外徑實質上相等,所以對於護鞘以及內視鏡之內腔的插通性,不會有受到該基端側頸部所妨礙之情形。 又,可以將外管的外徑作為由護鞘或者內視鏡所限制的最大直徑,所以可以充分確保該外管所具有之流體供給用副腔及流體排出用副腔的直徑,並可以使氣球內部的冷卻效果進一步地提升。 According to the balloon-type electrode catheter constructed in this way, since the outer diameter of the proximal side neck with the largest outer diameter is substantially the same as the outer diameter of the proximal end of the outer tube, the sheath and the inner cavity of the endoscope The penetrating property will not be hindered by the neck of the base end. In addition, the outer diameter of the outer tube can be used as the maximum diameter restricted by the sheath or the endoscope. Therefore, the diameter of the auxiliary cavity for fluid supply and the auxiliary cavity for fluid discharge of the outer tube can be sufficiently ensured, and can be used The cooling effect inside the balloon is further improved.
(8)於本發明的氣球型電極導管中,較佳為:於上述氣球的管壁配置有溫度感測器。 [發明效果] (8) In the balloon electrode catheter of the present invention, it is preferable that a temperature sensor is arranged on the wall of the balloon. [Invention Effect]
根據本發明的氣球型電極導管,對於所使用之護鞘還有內視鏡的內腔,可以無損於插通性地導入於脈管系統,並且對於脈管或是其周圍的病灶組織能夠及於大範圍地進行燒灼治療。 又,根據本發明的氣球型電極導管具備有由複數個帶狀電極所構成的表面電極,可以沿著該脈管的圓周方向對脈管或是其周圍組織進行均質的燒灼治療。 再者,根據本發明的氣球型電極導管具備有外管,且該外管具有:開口在比氣球的擴張部之軸向的中間位置更靠前端側的流體供給用副腔、以及開口在氣球的擴張部的基端或是其近旁的流體排出用副腔,相較於以往的氣球型電極導管,對於氣球內部具有優秀的冷卻效果,進而對於表面電極之周圍的組織具有優秀的冷卻效果。 According to the balloon-type electrode catheter of the present invention, the sheath and the lumen of the endoscope can be introduced into the vasculature without impairing penetration, and can reach the vessel or the surrounding lesion tissue Perform cauterization on a large scale. In addition, the balloon-type electrode catheter according to the present invention is provided with a surface electrode composed of a plurality of belt-shaped electrodes, and the vessel or its surrounding tissue can be uniformly cauterized along the circumferential direction of the vessel. Furthermore, the balloon-type electrode catheter according to the present invention is provided with an outer tube, and the outer tube has: a fluid supply sub-cavity opened at the tip side than the middle position of the expansion part of the balloon in the axial direction, and a sub-cavity for fluid supply opened in the balloon Compared with the conventional balloon-type electrode catheter, the proximal end of the expansion part or the adjacent fluid discharge sub-cavity has an excellent cooling effect on the inside of the balloon, and further has an excellent cooling effect on the tissue around the surface electrode.
<實施形態><Implementation form>
本實施形態的氣球型電極導管100,是用以導入於脈管系統,藉由高頻燒灼,對位在脈管及其周圍組織的贅生物(腫瘤)等之病灶組織進行治療的氣球型電極導管。The balloon-
第1圖~第24圖所示的氣球型電極導管100,係具備有:
外管(outer tube)10,其由圓管狀部分11以及半圓管狀部分13所構成,並具有中央腔10L以及配置於其周圍的副腔(sub-lumen)101L~112L;和
電性連接器21,其配置於外管10的基端側;和
氣球30,其具有:進行擴張收縮的擴張部31、及連續於其兩端的頸部(前端側頸部33及基端側頸部35),且基端側頸部35被固定於構成外管10之前端部的圓管狀部分11,並藉由擴張部31內包有構成外管10之前端部的半圓管狀部分13,而使氣球30連接於外管10的前端側;和
內管41,其具有導引線腔(guide wire lumen),插通於外管10的中央腔10L,從該中央腔10L的開口朝向氣球30的內部延伸,而延伸在該氣球30的內部;和
前端頂件46,其具有:連通於內管41之導引線腔的管腔(導引線腔),於氣球30的內部中連接於內管41的前端,並且被固定在前端側頸部33而朝向氣球30的外部延伸出;和
帶狀電極51~54(表面電極),其由形成於氣球30的擴張部31及前端側頸部33外表面的金屬薄膜所形成;和
金屬環60,其是藉由使其內周面接觸於帶狀電極51~54的各個前端部之方式,裝設在氣球30的前端側頸部33,而與各個帶狀電極51~54電性連接;和
導線70,其前端連接於金屬環60的內周面,並延伸存在於氣球30的內部以及外管10(圓管狀部分11)的副腔112L,其基端連接於電性連接器21;和
溫度感測器(熱電耦)80,其前端(測溫部81)被埋設在氣球30之擴張部31的管壁,並延伸存在於擴張部31及基端側頸部35的管壁以及外管10(圓管狀部分11)的管腔106L,其基端連接於電性連接器21。
The
於第1圖及第2圖中,符號20是連接於外管10之基端側的Y連接器、22是流體供給用連接器、23是流體排出用連接器、24是導引線連接器、26是導線保護管、27是流體供給用管、28是流體排出用管。In Figures 1 and 2, the
如第3圖~第5圖、第14圖、第15圖、第17圖~第22圖所示,構成氣球型電極導管100的外管10,是由圓管狀部分11與半圓管狀部分13所構成。
外管10的基端部以及前端部的一部分,是由圓管狀部分11所構成,外管10的前端部(除了上述一部分)是由半圓管狀部分13所構成。
As shown in Figures 3 to 5, 14, 15, and 17 to 22, the
如第17圖、第19圖以及第21圖所示,於外管10之圓管狀部分11的內部,形成有:中央腔10L、及以等角度(30°)間隔配置於其周圍的12條副腔101L~112L。
於圓管狀部分11,副腔101L~112L的各個,是藉由將之圍繞的腔管(lumen tube)所形成,此等腔管,是藉由形成圓管狀部分11的黏著劑樹脂所固定。
As shown in Figure 17, Figure 19 and Figure 21, in the
如第14圖及第15圖所示,於外管10之半圓管狀部分13的內部,從圓管狀部分11的內部連續地形成有副腔101L~105L。
於半圓管狀部分13中,用以圍繞各個副腔101L~105L的腔管,是藉由形成半圓管狀部分13的黏著劑樹脂所固定。
As shown in FIGS. 14 and 15, in the semicircular
如第3圖及第4圖所示,配置在圓管狀部分11之內部以及半圓管狀部分13之內部的副腔101L~105L,是分別在作為外管10之前端面的半圓管狀部分13的前端面14呈開口。As shown in Figures 3 and 4, the sub-cavities 101L to 105L arranged inside the circular
副腔101L~105L之各個,是與第1圖及第2圖所示的流體供給用連接器22連通。
藉此,副腔101L~105L(形成於外管10的12條副腔中的5條副腔),係成為用以對氣球30(擴張部31)之內部供給流體的「流體供給用副腔」。
在此,作為供給至氣球30之內部的流體,可以例示出生理食鹽水。
Each of the sub-cavities 101L to 105L communicates with the
如第3圖及第5圖所示,形成在圓管狀部分11之內部的中央腔10L及副腔106L~112L,係各別在圓管狀部分11的前端面12呈開口。
不過,副腔106L、110L及112L的開口,是藉由第17圖所示的密封材90所封閉。
As shown in FIGS. 3 and 5, the
副腔107L~111L之各個,是與第1圖所示的流體排出用連接器23連通。
藉此,副腔107L~109L及111L(形成於外管10的12條副腔中的4條副腔),係成為用以將已供給至氣球30(擴張部31)之內部的流體從氣球30之內部排出的「流體排出用副腔」。
Each of the sub-cavities 107L to 111L is in communication with the
作為外管10的構成材料,並沒有特別地限定,例如可以舉出:聚醯胺、聚醚聚醯胺、聚醚醯胺嵌段共聚物(PEBAX(註冊商標))及尼龍等之聚醯胺系樹脂,此等之中以PEBAX為理想。The material of the
外管10的外徑(在後述之基端部中的外徑),通常設為1.0mm~3.3mm,適切之一例是設為1.45mm。
外管10之中央腔10L的直徑,通常設為0.35mm~0.95mm,適切之一例是設為0.85mm。
外管10之副腔101L~112L的直徑,通常設為0.10mm~0.75mm,適切之一例是設為0.25mm。外管10的長度,通常設為100mm~2200mm,適切之一例是設為1800mm。
The outer diameter of the outer tube 10 (the outer diameter at the base end described later) is usually 1.0 mm to 3.3 mm, and an appropriate example is 1.45 mm.
The diameter of the
如第1圖及第2圖所示,於外管10的基端側,連接有Y連接器20。
如第23圖所示,圍繞外管10的副腔101L~105L及副腔107L~111L的腔管,是從外管10的基端進入到Y連接器20的內部。
As shown in FIG. 1 and FIG. 2, a
如第24圖所示,圍繞副腔101L~105L(流體供給用副腔)之腔管的基端部,是於Y連接器20的內部中,連結(由接著劑95固定)於單腔構造的流體供給用管27。
該流體供給用管27,是朝Y連接器20的外部延伸出去,流體供給用管27的基端是連結於流體供給用連接器22。
As shown in Figure 24, the proximal end of the lumen surrounding the sub-lumen 101L to 105L (sub-lumen for fluid supply) is in the inside of the
圍繞副腔107L~111L之腔管的基端部,是於Y連接器20的內部中,連結(由接著劑95固定)於單腔構造的流體排出用管28。
該流體排出用管28,是朝Y連接器20的外部延伸出去,流體排出用管28的基端是連結於流體排出用連接器23。
The base end of the lumen surrounding the sub-lumen 107L to 111L is connected (fixed by the adhesive 95) to the
構成氣球型電極導管100的氣球30,是由進行擴張收縮的擴張部31、連續至擴張部31之前端的前端側頸部33、以及連續至擴張部31之基端的基端側頸部35所構成。The
氣球30的擴張部31,是藉由流體供給至其內部而擴張,藉由流體從其內部排出而收縮的空間形成部分。
如第1圖~第5圖所示,氣球30的擴張部31,是由:圓筒狀部分311、從圓筒狀部分311之前端至前端側頸部33之基端的前端側圓錐部分313、以及從圓筒狀部分311之基端至基端側頸部35之前端的基端側圓錐部分315所構成。
The
藉由基端側頸部35被固定在外管10的前端部(藉由圓管狀部分11所構成的前端部),並且擴張部31內包有外管10的前端部(藉由半圓管狀部分13所構成的前端部),使氣球30連接在外管10的前端側。The base
在此,固定有氣球30之基端側頸部35的外管10的前端部(第19圖所示的圓管狀部分11)其表層部分被削除,其外徑成為比基端側頸部35沒有被固定之外管10的基端部(第21圖所示的圓管狀部分11)的外徑還小。
又,第19圖所示之基端側頸部35的外徑,是與第21圖所示之外管10的基端部的外徑實質上相等。
Here, the front end portion of the outer tube 10 (the circular
藉此,可以防止由於基端側頸部35而損及:對用來導入氣球型電極導管100所使用的護鞘(sheath)或者內視鏡之內腔的插通性。
又,由於可以將外管10的外徑作為由護鞘或者內視鏡所限制的最大直徑(不必考慮由基端側頸部的厚度所造成之外徑擴大),所以可以充分確保外管10之副腔101L~112L的直徑,並可以使氣球30內部的冷卻效果進一步地提升。
Thereby, it is possible to prevent the
如第3圖及第4圖所示,流體供給用副腔101L~105L呈開口之半圓管狀部分13的前端面14,是位在比氣球30之擴張部31的軸向的中間位置更靠前端側而位在圓筒狀部分311的前端近旁。
藉此,流通在流體供給用副腔101L~105L的流體,是從位在圓筒狀部分311的前端近旁位置的各個開口朝前端方向吐出,吐出的流體,可以到達擴張部31(前端側圓錐部分313)的前端近旁,藉此,可以在氣球30(擴張部31)的內部中形成從前端側往基端側之流體的流動。
As shown in Figures 3 and 4, the
若流體供給用副腔的開口位置,在位於比氣球之擴張部的軸向的中間位置更靠近基端側之情形時,氣球擴張後,即使使流體從該開口朝前端方向吐出,亦無法使該流體到達至擴張部的前端近旁,因而無法在氣球的內部中形成從前端側往基端側之流體的流動。If the opening position of the sub-cavity for fluid supply is located closer to the proximal side than the axial middle position of the expansion part of the balloon, after the balloon is expanded, even if the fluid is discharged from the opening in the distal direction, it cannot be used. Since this fluid reaches the vicinity of the tip of the expansion part, the flow of fluid from the tip side to the proximal side cannot be formed in the inside of the balloon.
如第3圖及第5圖所示,流體排出用副腔107L~109L及111L呈開口之圓管狀部分11的前端面12,是位在擴張部31的基端。As shown in FIGS. 3 and 5, the
作為氣球30的構成材料,並沒有特別地限定,可以使用與以往周知之構成氣球導管的氣球相同材料,例如可以舉出:聚醯胺、聚醚聚醯胺、PEBAX及尼龍等之聚醯胺系樹脂;熱塑性聚醚胺基甲酸乙酯、聚醚聚胺基甲酸乙酯脲、氟聚醚胺基甲酸乙酯脲、聚醚聚胺基甲酸乙酯脲樹脂及聚醚聚胺基甲酸乙酯脲醯胺等之聚胺基甲酸乙酯系樹脂。The constituent material of the
作為氣球30(擴張部31)的直徑,通常設為0.7mm~30.0mm,適切之一例是設為2.0mm。
氣球30之基端側頸部35的外徑,是與外管10之基端部的外徑實質上相等,通常設為1.0mm~3.3mm,適切之一例是設為1.45mm。
作為氣球30(擴張部31)的長度,通常設為8mm~50mm,適切之一例是設為20mm。
The diameter of the balloon 30 (expanded portion 31) is usually 0.7 mm to 30.0 mm, and an appropriate example is 2.0 mm.
The outer diameter of the base
於本實施形態的氣球型電極導管100,是藉由內管41、以及前端頂件46而構成內軸芯(inner shaft)。
構成氣球型電極導管100的內管41,係具有能夠插通導引線的管腔(導引線腔),且插通於外管10(圓管狀部分11)的中央腔10L,其前端部是從該中央腔10L的開口朝氣球30(擴張部31)的內部延伸出去。
In the
朝氣球30(擴張部31)的內部延伸出去之內管41的前端部,是在其外周面的半圓周部分被半圓管狀部分13所覆蓋的狀態下,延伸在:擴張部31的基端側圓錐部分315、圓筒狀部分311、以及前端側圓錐部分313的內部,並於前端側圓錐部分313的內部中,連結於前端頂件46。The distal end of the
另一方,內管41的基端部,如第23圖及第24圖所示,是從外管10的基端(中央腔10L之基端側的開口)進入至Y連接器20的內部,並延伸在Y連接器20的內部,延伸至Y連接器20的外部,內管41的基端是連結在導引線連接器24。On the other hand, the base end of the
作為內管41的構成材料,雖可以使用與以往周知之構成氣球導管的內管相同材料,不過以使用機械特性優良之結晶性熱塑性樹脂的PEEK樹脂(聚醚醚酮樹脂)為佳。As the constituent material of the
內管41的外徑,是與被其插通之外管10的中央腔10L的直徑相同或稍微較小,通常設為0.34mm~0.99mm,適切之一例是設為0.84mm。
內管41的內徑,通常設為0.31mm~0.92mm,適切之一例是設為0.68mm。
The outer diameter of the
構成氣球型電極導管100的前端頂件46,係具有連通於內管41之導引線腔的管腔(導引線腔),於氣球30之擴張部31的前端側圓錐部分313的內部中連接於內管41的前端,並且固定於前端側頸部33而朝氣球30的外部延伸出去。前端頂件46的前端呈開口。The
作為前端頂件46的構成材料者,雖然沒有特別地限定,不過例如可舉出:聚醯胺、聚醚聚醯胺、PEBAX以及尼龍等之聚醯胺系樹脂、聚胺基甲酸乙酯等。The constituent material of the
前端頂件46的內徑,是與內管41的內徑實質上相同,通常設為0.31mm~0.92mm,適切之一例是設為0.68mm。
前端頂件46的外徑,通常設為0.35mm~2.6mm,適切之一例是設為1.0mm。
供前端頂件46固定之氣球30的前端側頸部33的外徑,通常設為0.37mm~3.3mm,適切之一例是設為1.18mm。
The inner diameter of the
如第3圖~第7圖及第9圖~第15圖所示,於氣球30(擴張部31的圓筒狀部分311及前端側圓錐部分313以及前端側頸部33)的外表面,作為供高頻電流通電的表面電極,是使沿著氣球30的軸向而延伸之由金屬薄膜所形成的帶狀電極51~54,沿著氣球30的圓周方向以90°間隔所配置。As shown in FIGS. 3-7 and 9-15, the outer surface of the balloon 30 (the
作為構成帶狀電極51~54之金屬薄膜的構成材料,可以舉出:金、鉑、銀、銅及此等的合金、不鏽鋼等。
作為構成帶狀電極51~54之金屬薄膜的膜厚以0.5μm~5.0μm為佳,較佳為1.0μm~2.5μm。
該膜厚過小之情形時,於手術中(高頻通電中),恐由於焦耳熱而使金屬薄膜成為高溫之虞。
另一方,薄膜的膜厚過大之情形時,該金屬薄膜會有難以追隨:伴隨擴張收縮之氣球的形狀變化,而有損氣球的擴張收縮性的情形。
Examples of the constituent material of the metal thin film constituting the
作為將構成帶狀電極51~54的金屬薄膜形成於氣球30之外表面的方法,並沒有特別地限定,可以採用蒸氣沈積、濺鍍、電鍍、印刷等、通常的金屬薄膜形成方法。The method of forming the metal thin film constituting the
如第3圖、第4圖、第6圖、第9圖以及第10圖所示,於氣球30的前端側頸部33裝設有金屬環60。
構成氣球型電極導管100的金屬環60,其內周面是以接觸於帶狀電極51~54之各個的前端部之方式所設,並於前端側頸部33施以斂縫加工固定,藉此,帶狀電極51~54之各個與金屬環60電性連接。
As shown in FIG. 3, FIG. 4, FIG. 6, FIG. 9 and FIG. 10, a
作為金屬環60的構成材料,可以舉出鉑或是鉑系的合金等。如第9圖所示,金屬環60,是由樹脂材料65所絕緣被覆。藉此,可以防止通電時的金屬環60成為高溫,而可以避免金屬環60之周圍的正常組織發生諸如被燒灼的情事。As a constituent material of the
裝設在前端側頸部33之金屬環60的內徑,是與前端側頸部33的外徑實質上相同,通常設為0.37mm~3.3mm,適切之一例是設為1.18mm。
裝設在前端側頸部33之金屬環60的外徑,是比外管10還有基端側頸部35的外徑還小,通常設為0.98mm~3.28mm,適切之一例是設為1.32mm。
The inner diameter of the
在金屬環60的內周面固定有導線70的前端。
該導線70,如第9圖及第11圖所示,是延伸在前端頂件46的管壁內,然後如第12圖、第14圖、以及第15圖所示,沿著內管41而延伸在氣球30之擴張部31的內部,然後如第17圖、第19圖、以及第21圖所示,延伸在外管10(圓管狀部分11)的副腔112L,然後如第23圖及第24圖所示,延伸在Y連接器20的內部,經過從Y連接器20延伸出之導線保護管26的內部再從Y連接器20延伸出去。
The tip of the
導線70的基端是連接在電性連接器21。該電性連接器21,是兼備有:作為對帶狀電極51~54的各個進行高頻電流通電之通電用連接器的功能、以及用以將溫度感測器80連接至溫度測量器之熱電耦連接器的功能。The base end of the
藉由將帶狀電極51~54的各個,經由金屬環60及導線70而連接於電性連接器21,可以對帶狀電極51~54的各個,均等地通導高頻電流。By connecting each of the
作為導線70的構成材料,例如可以舉出:銅、銀、金、鉑、鎢、以及此等金屬的合金,並以施有氟系樹脂等之電氣絕緣性保護被覆為佳。Examples of the constituent material of the
如第3圖、第5圖、第15圖~第20圖所示,於氣球30的管壁,埋設配置有由熱電耦所構成的溫度感測器80。該溫度感測器80的測溫部81(測溫接點),是位在擴張部31的管壁。As shown in FIGS. 3, 5, and 15 to 20, a
如第19圖~第22圖所示,溫度感測器80,是從氣球30之基端側頸部35的管壁進入外管10(圓管狀部分11)的副腔106L而延伸在該副腔106L,然後如第23圖及第24圖所示,與導線70一起延伸在Y連接器20的內部,經過從Y連接器20延伸出之導線保護管26的內部再從Y連接器20延伸出去。
溫度感測器80的基端是連接在電性連接器21。
As shown in Figs. 19-22, the
根據本實施形態的氣球型電極導管100,藉由在氣球30的外表面所形成之帶狀電極51~54的各個,可以對位在脈管或是其周圍的病灶,大範圍地進行高頻燒灼治療。According to the balloon-
又,藉由使金屬環60以其內周面接觸於帶狀電極51~54之各個的前端部之方式裝設在氣球30的前端側頸部,藉此,帶狀電極51~54的各個由於經由該金屬環60及導線70而與電性連接器21電性連接,所以可以對帶狀電極51~54之各個均等地通導高頻電流,藉此,可以沿著該脈管的圓周方向對位在脈管或是其周圍的病灶組織均質地進行燒灼治療。Furthermore, by attaching the
又,於氣球30的前端側頸部33所裝設之金屬環60的外徑,由於是比外管10還有基端側頸部35的外徑還小,所以金屬環60不會發生諸如鉤卡在導入時所使用之護鞘或者內視鏡的開口之情事,因而不會損及氣球型電極導管100對於護鞘或者內視鏡之內腔的插通性。In addition, the outer diameter of the
又,流體供給用副腔101L~105L之各個,是在位於氣球30之擴張部31的圓筒狀部分311的前端近旁位置之半圓管狀部分13的前端面14呈開口,流體排出用副腔107L~109L及111L之各個,是在位於氣球30之擴張部31的基端位置之圓管狀部分11的前端面12呈開口,藉此,即使氣球30在擴張後(內部已被流體充填後),仍可以形成從前端側往基端側之流體的流動,來使該流體於氣球30的內部中進行流動。Furthermore, each of the
尤其是,從流體供給用副腔101L~105L的開口朝前端方向所吐出的流體,碰到擴張部31之前端側圓錐部分313的內壁面,然後,沿著擴張部31的圓筒狀部分311及基端側圓錐部分315的內壁面而朝基端方向流動,藉此,可以使流體在氣球30(擴張部31)的內部中循環。In particular, the fluid discharged from the openings of the
其結果,可以遍及於擴張部31之全區域且效率良好地將氣球30的內部予以冷卻,藉此,使帶狀電極51~54之周圍的組織充分地被冷卻,而可以確實地防止該組織被纖維化(fibrosis)。As a result, the inside of the
又,由於配置於外管10的流體供給用副腔101L~105L為5條,流體排出用副腔107L~109L及111L為4條,所以可以將氣球30的內部維持在一定的壓力(擴張壓力)。In addition, since there are five sub-cavities 101L to 105L for fluid supply arranged in the
作為本實施形態的氣球型電極導管100能夠適用之病症例,為脈管或是位於其周圍的贅生物還有迷走神經等,具體上,可以舉出膽管癌、肺癌、肝癌、腎臟癌、腎上腺腺瘤、腎動脈迷走神經等。Examples of diseases to which the balloon-
以上,對於本發明的實施形態進行了說明,不過本發明並不限定於此等的實施形態,而是能夠有各種的變更。
例如,位在氣球30之內部中的半圓管狀部分13的前端面14的位置(流體供給用副腔101L~105L的開口位置),係只要比擴張部31之軸向的中間位置還要前端側即可,故亦可不位在擴張部31的圓筒狀部分311的前端近旁。
Above, the embodiments of the present invention have been described, but the present invention is not limited to these embodiments, and various modifications are possible.
For example, the position of the
又,在本發明的氣球型電極導管中,亦可以將流體供給用副腔及/或是流體排出用副腔的開口形成在外管的外周面,將流體朝向外管的半徑方向進行吐出/排出。In addition, in the balloon-type electrode catheter of the present invention, the openings of the fluid supply sub-cavity and/or the fluid discharge sub-cavity may be formed on the outer peripheral surface of the outer tube, and the fluid may be discharged/discharged in the radial direction of the outer tube .
又,亦可以使流體供給用副腔的開口,以位在氣球之擴張部的基端或是其近旁,使流體排出用副腔的開口,以位在比擴張部的軸向的中間位置更位於前端側之方式來設置。In addition, the opening of the auxiliary cavity for fluid supply may be positioned at or near the base end of the expansion part of the balloon, and the opening of the auxiliary cavity for fluid discharge may be positioned more than the middle of the expansion part in the axial direction. It is set by the way located on the front side.
又,亦可以使流體供給用副腔及流體排出用副腔,相互地在同一軸向位置開口。In addition, the sub-cavity for fluid supply and the sub-cavity for fluid discharge may be opened at the same axial position.
100:氣球型電極導管
10:外管
10L:中央腔
101L~105L:副腔(流體供給用副腔)
107L~109L、111L:副腔(流體排出用副腔)
106L、110L、112L:副腔
11:圓管狀部分
12:圓管狀部分的前端面
13:半圓管狀部分
14:半圓管狀部分的前端面
20:Y連接器
21:電性連接器
22:流體供給用連接器
23:流體排出用連接器
24:導引線連接器
26:導線保護管
27:流體供給用管
28:流體排出用管
30:氣球
31:擴張部
311:圓筒狀部分
313:前端側圓錐部分
315:基端側圓錐部分
33:前端側頸部
35:基端側頸部
41:內管
46:前端頂件
51~54:帶狀電極(表面電極)
60:金屬環
70:導線
80:溫度感測器(熱電耦)
81:溫度感測器的測溫部
90:密封材
95:接著劑
100: Balloon electrode catheter
10:
第1圖是本發明之一實施形態的氣球型電極導管的平面圖。 第2圖是第1圖所示之氣球型電極導管的局部剖視正面圖(含有第1圖之II-II線剖面的正面圖)。 第3圖是顯示第1圖所示之氣球型電極導管的前端部分的立體圖。 第4圖是顯示第1圖所示之氣球型電極導管的前端部分(氣球的前端側)的立體圖。 第5圖是顯示第1圖所示之氣球型電極導管的前端部分(氣球的基端側)的立體圖。 第6圖是第2圖的局部放大圖(VI部分的詳細圖)。 第7圖是第6圖的局部放大圖(VII部分的詳細圖)。 第8圖是第2圖的局部放大圖(VIII部分的詳細圖)。 第9圖是第1圖的IX-IX線剖面圖。 第10圖是第9圖的局部放大圖(X部分的詳細圖)。 第11圖是第1圖的XI-XI線剖面圖。 第12圖是第1圖的XII-XII線剖面圖。 第13圖是第12圖的局部放大圖(XIII部分的詳細圖)。 第14圖是第1圖的XIV-XIV線剖面圖。 第15圖是第1圖的XV-XV線剖面圖。 第16圖是第15圖的局部放大圖(XVI部分的詳細圖)。 第17圖是第1圖的XVII-XVII線剖面圖。 第18圖是第17圖的局部放大圖(XVIII部分的詳細圖)。 第19圖是第1圖的XIX-XIX線剖面圖。 第20圖是第19圖的局部放大圖(XX部分的詳細圖)。 第21圖是第1圖的XXI-XXI線剖面圖。 第22圖是第21圖的局部放大圖(XXII部分的詳細圖)。 第23圖是第1圖的XXIII-XXIII線剖面圖。 第24圖是第1圖的XXIV-XXIV線剖面圖。 Figure 1 is a plan view of a balloon electrode catheter according to an embodiment of the present invention. Fig. 2 is a partial cross-sectional front view of the balloon electrode catheter shown in Fig. 1 (a front view including a cross-section along the line II-II in Fig. 1). Fig. 3 is a perspective view showing the tip portion of the balloon electrode catheter shown in Fig. 1. Fig. 4 is a perspective view showing the tip portion (the tip side of the balloon) of the balloon-type electrode catheter shown in Fig. 1. Fig. 5 is a perspective view showing the tip portion (base end side of the balloon) of the balloon-type electrode catheter shown in Fig. 1. Figure 6 is a partial enlarged view of Figure 2 (detailed view of part VI). Fig. 7 is a partial enlarged view of Fig. 6 (detailed view of part VII). Fig. 8 is a partial enlarged view of Fig. 2 (detailed view of part VIII). Fig. 9 is a sectional view taken along the line IX-IX in Fig. 1. Fig. 10 is a partial enlarged view of Fig. 9 (detailed view of part X). Figure 11 is a cross-sectional view taken along line XI-XI in Figure 1. Fig. 12 is a sectional view taken along line XII-XII in Fig. 1. Fig. 13 is a partial enlarged view of Fig. 12 (detailed view of part XIII). Figure 14 is a sectional view taken along the line XIV-XIV in Figure 1. Fig. 15 is a sectional view taken along the line XV-XV in Fig. 1. Figure 16 is a partial enlarged view of Figure 15 (detailed view of XVI part). Fig. 17 is a sectional view taken along the line XVII-XVII in Fig. 1. Figure 18 is a partial enlarged view of Figure 17 (detailed view of part XVIII). Figure 19 is a cross-sectional view taken along the line XIX-XIX in Figure 1. Figure 20 is a partial enlarged view of Figure 19 (detailed view of part XX). Figure 21 is a sectional view taken along the line XXI-XXI in Figure 1. Figure 22 is a partial enlarged view of Figure 21 (detailed view of part XXII). Fig. 23 is a sectional view taken along the line XXIII-XXIII in Fig. 1. Fig. 24 is a sectional view taken along the line XXIV-XXIV in Fig. 1.
10:外管
10L:中央腔
11:圓管狀部分
12:圓管狀部分的前端面
13:半圓管狀部分
14:半圓管狀部分的前端面
30:氣球
31:擴張部
311:圓筒狀部分
313:前端側圓錐部分
315:基端側圓錐部分
33:前端側頸部
35:基端側頸部
41:內管
46:前端頂件
51~54:帶狀電極(表面電極)
60:金屬環
70:導線
80:溫度感測器(熱電耦)
81:溫度感測器的測溫部
10:
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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WOPCT/JP2018/030365 | 2018-08-15 | ||
PCT/JP2018/030365 WO2020035918A1 (en) | 2018-08-15 | 2018-08-15 | Balloon-type electrode catheter |
Publications (2)
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TW202008970A TW202008970A (en) | 2020-03-01 |
TWI703955B true TWI703955B (en) | 2020-09-11 |
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Application Number | Title | Priority Date | Filing Date |
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TW108112794A TWI703955B (en) | 2018-08-15 | 2019-04-12 | Balloon type electrode catheter |
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JP (1) | JP6894582B2 (en) |
TW (1) | TWI703955B (en) |
WO (1) | WO2020035918A1 (en) |
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RU2757371C1 (en) * | 2020-10-31 | 2021-10-14 | Государственное бюджетное учреждение здравоохранения города Москвы «Научно-исследовательский институт скорой помощи им. Н.В. Склифосовского Департамента здравоохранения города Москвы» (ГБУЗ "НИИ СП ИМ. Н.В.СКЛИФОСОВСКОГО ДЗМ") | Method and apparatus for intraoperative monitoring of functional integrity of corticospinal tract in operations on brain |
JPWO2022259438A1 (en) * | 2021-06-09 | 2022-12-15 |
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US20010003798A1 (en) * | 1998-02-11 | 2001-06-14 | Phyllis K. Kristal | Balloon catheter for intra-urethral radio-frequency urethral enlargement |
US20040054367A1 (en) * | 2002-09-16 | 2004-03-18 | Jimenez Teodoro S. | Ablation catheter having shape-changing balloon |
US20050171527A1 (en) * | 2003-12-31 | 2005-08-04 | Sumita Bhola | Circumferential ablation device assembly with an expandable member |
TW200531714A (en) * | 2004-01-06 | 2005-10-01 | Toray Industries | Balloon catheter |
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US5779698A (en) * | 1989-01-18 | 1998-07-14 | Applied Medical Resources Corporation | Angioplasty catheter system and method for making same |
JP5444840B2 (en) * | 2009-05-21 | 2014-03-19 | 東レ株式会社 | Ablation catheter with balloon and ablation catheter system with balloon |
WO2014083698A1 (en) * | 2012-11-30 | 2014-06-05 | 株式会社グツドマン | Ablation catheter |
US20190069949A1 (en) * | 2014-12-03 | 2019-03-07 | Metavention, Inc. | Systems and methods for modulatng nerves or other tissue |
JP6308683B2 (en) * | 2015-03-27 | 2018-04-11 | 日本ライフライン株式会社 | Balloon type ablation catheter |
JP2017113271A (en) * | 2015-12-24 | 2017-06-29 | 日本ゼオン株式会社 | Endoscopic treatment instrument |
-
2018
- 2018-08-15 JP JP2020537324A patent/JP6894582B2/en active Active
- 2018-08-15 WO PCT/JP2018/030365 patent/WO2020035918A1/en active Application Filing
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2019
- 2019-04-12 TW TW108112794A patent/TWI703955B/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010003798A1 (en) * | 1998-02-11 | 2001-06-14 | Phyllis K. Kristal | Balloon catheter for intra-urethral radio-frequency urethral enlargement |
US20040054367A1 (en) * | 2002-09-16 | 2004-03-18 | Jimenez Teodoro S. | Ablation catheter having shape-changing balloon |
US20050171527A1 (en) * | 2003-12-31 | 2005-08-04 | Sumita Bhola | Circumferential ablation device assembly with an expandable member |
TW200531714A (en) * | 2004-01-06 | 2005-10-01 | Toray Industries | Balloon catheter |
Also Published As
Publication number | Publication date |
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WO2020035918A1 (en) | 2020-02-20 |
JP6894582B2 (en) | 2021-06-30 |
TW202008970A (en) | 2020-03-01 |
JPWO2020035918A1 (en) | 2021-02-15 |
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