CN1927130A - 灌注式集束可控探针 - Google Patents

灌注式集束可控探针 Download PDF

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CN1927130A
CN1927130A CN 200510029422 CN200510029422A CN1927130A CN 1927130 A CN1927130 A CN 1927130A CN 200510029422 CN200510029422 CN 200510029422 CN 200510029422 A CN200510029422 A CN 200510029422A CN 1927130 A CN1927130 A CN 1927130A
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罗昌渠
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Abstract

本发明创新点是一种新型综合探针，其特点是既可作射频微创探针，又可进行介入疗法，也可作多针无水酒精注射针。治疗范围大，适用性广。它在绝缘外套管内安置空芯导管，导管前端是多根有弹性、有强度的微细针管。每根针管与导管相通，导管的另一端是针基，与注射器相连。针基前有一电极，与射频器相接。液体可从细针管中射出，细针管以梅花状展开，大小可控。外套管前有斜口可直接穿刺，深度可控。外套管后是一可控手柄。另外，针基与注射器之间可串接带热电偶的接续器，可实时测量治疗温度。

Description

灌注式集束可控探针
灌注式集束可控探针是一种用于射频肿瘤消融仪上的关键治疗针，属医疗器械范围。射频肿瘤热疗(消融)近几年在国内外迅速发展，特别是美国、法国、韩国、意大利均认为是一种非常有希望的射频肿瘤微创手术。其作用不断替代手术治疗，治疗效果可与手术相提并论，它独特的优点是：简单、安全可靠、费用低、副作用小，体弱老幼均宜，也可多次反复治疗。射频微创热疗中最关键的部件就是探针，它决定该机的先进性、治疗范围、治疗效果。以往，冷极的缺点是需大功率，热量大多被冷却水带走。集束电极的缺点是：由于针数多，硬度差，遇到硬的组织不能张开，尖端也易碳化，往往创伤大。单针灌注热针的缺点是：边缘区域难以处理，即现有的射频热探针均有优点，又有不足之处，治疗范围限制在3～5cm以下。灌注式集束可控探针的创新是：在冷极、集束电极、灌注式热针的基础上发展起来的集各方的优点，是一种综合性的射频微创探针。既可作射频微创治疗针，又可进行介入疗法局部治疗，也可做无水酒精专用注射作用。其创新结构达到治疗范围广，适用性大。其突出的优点必将推动射频微创热疗的快步发展。
新型创新灌注式集束可控探针的结构：
这种结构的先进性在空芯不锈钢导管的一端安置4～5个微型空芯不锈钢管，组成多空芯集束探针。每根微型空芯针以一定的圆弧曲线向外展开，其大小可控。不锈钢导管的另一端是注射针基座可直接与注射器相接。注射器可注射盐水，也可注射治癌药水，也可注入同位素。在导管与注射针基座的相结合处引出电极，与射频发生器相连接进行微创热疗。另外，在导管的外面套以略大于导轨的不锈钢管，导管在外套管内可伸缩自由，又不松动。外套管前端是一斜口，可刺入皮肤。另一端与导向手柄相连。导管在手柄内定向定位可前后伸缩。
图号说明：
图1是灌注式集束可控探针的外形图。
图2是灌注式集束可控探针的剖视图。
1-微型空芯注射针管     2-外套管                3-手柄
4-射频电极             5-针基                  6-内导管
7-定位圈               8-定位钢珠              9-热电偶
10-导杆                11-微型热电偶           12-接续器
具体实施方式：
在导管6的前端安置φ0.5(或φ0.4)4～5根微型空芯管1，微型空芯管1与导管6焊固密封，微型空芯管1与导管6相通，液体可从微型管1的一端压出，液体沿径向均匀灌注。微型空芯管以一定的圆弧向外展开，大小可控，并具有相当强度的弹性。
导管6的另一端安置注射针针基座5，直接与注射器相接，可灌注液体。中间亦可安上接续器口，再与注射器相接。接续器上安置微型热电偶11，可测量导管端的温度。导管6与针基座5之间引出电极4，与射频发生器相连。导管6和针基一端装有导杆10和限位钉13，则导管在手柄内作定向前后限位伸缩。
管套2的前端为一近30°的斜口，作穿刺用。套管2外表套以绝缘套管(涂以高温绝缘漆)，并标有cm的刻度，套管2的另一端与手柄3相接，手柄3的一端装有定位圈7与定位钢珠8，限定微管1张展的大小。
以上结构的创新点实现了可灌注热疗，可与化疗、放疗直接相结合，可控制微型管以梅花形张展的大小。利用接续器12又可测量温度。不仅可作热疗，也可作无水酒精专用注射针用。其治疗范围大大扩大可达到10cm以上，是一种新型独立的创新产品。

Claims (4)

1.一种新型射频可控探针，在绝缘套管一端为斜口，另一端为一手柄。套管内有一导管，其特征是：
导管的前端安置多根弹性微型空芯注射针管，以梅花状展开，大小可控，每根管与导管相通。导管另一端是注射针基，可直接与注射器相接。导管与针基之间引出一电极与射频发生器相接。
2.权力要求所述的探针，其特征是：注射器与注射针基之间可串入带热电偶的接续器，直接测量导管前端的温度。
3.权力要求所述的探针，其特征是：不接接续器，不接射频源，可直接作专用多针无水酒精注射针用。
4.权力要求所述的探针，其特征是：手柄内装有导向限位与定位装置，使梅花状针头大小定位可控，外套管有刻度可控制穿刺深度。
CN 200510029422 2005-09-06 2005-09-06 灌注式集束可控探针 Pending CN1927130A (zh)

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CN101721247B (zh) * 2008-10-17 2011-03-30 四川锦江电子科技有限公司 疼痛电极针
CN102188304A (zh) * 2010-12-31 2011-09-21 清华大学 一种空心管式多弹头纳米肿瘤热疗仪器
CN103974670A (zh) * 2011-08-24 2014-08-06 消融系统有限公司 用于血管壁注射和血管周肾去神经支配的导管系统
CN105030325A (zh) * 2014-04-18 2015-11-11 韦伯斯特生物官能(以色列)有限公司 具有专用流体路径和针定心插入件的消融导管
US9278196B2 (en) 2011-08-24 2016-03-08 Ablative Solutions, Inc. Expandable catheter system for vessel wall injection and muscle and nerve fiber ablation
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US9526827B2 (en) 2012-10-29 2016-12-27 Ablative Solutions, Inc. Peri-vascular tissue ablation catheter with support structures
CN106308927A (zh) * 2016-08-22 2017-01-11 北京市肿瘤防治研究所 多针尖扩展射频消融电极针
US9554849B2 (en) 2012-10-29 2017-01-31 Ablative Solutions, Inc. Transvascular method of treating hypertension
US9795441B2 (en) 2011-04-22 2017-10-24 Ablative Solutions, Inc. Methods of ablating tissue using a catheter injection system
US9931046B2 (en) 2013-10-25 2018-04-03 Ablative Solutions, Inc. Intravascular catheter with peri-vascular nerve activity sensors
US9949652B2 (en) 2013-10-25 2018-04-24 Ablative Solutions, Inc. Apparatus for effective ablation and nerve sensing associated with denervation
CN108670402A (zh) * 2018-05-31 2018-10-19 王振环 深层组织穿刺切开器
US10118004B2 (en) 2011-08-24 2018-11-06 Ablative Solutions, Inc. Expandable catheter system for fluid injection into and deep to the wall of a blood vessel
US10172663B2 (en) 2011-04-22 2019-01-08 Ablative Solutions, Inc. Expandable catheter system for peri-ostial injection and muscle and nerve fiber ablation
US10226278B2 (en) 2012-10-29 2019-03-12 Ablative Solutions, Inc. Method for painless renal denervation using a peri-vascular tissue ablation catheter with support structures
US10517666B2 (en) 2013-10-25 2019-12-31 Ablative Solutions, Inc. Apparatus for effective ablation and nerve sensing associated with denervation
US10736656B2 (en) 2012-10-29 2020-08-11 Ablative Solutions Method for painless renal denervation using a peri-vascular tissue ablation catheter with support structures
US10849685B2 (en) 2018-07-18 2020-12-01 Ablative Solutions, Inc. Peri-vascular tissue access catheter with locking handle
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CN102188304A (zh) * 2010-12-31 2011-09-21 清华大学 一种空心管式多弹头纳米肿瘤热疗仪器
CN102188304B (zh) * 2010-12-31 2012-12-05 清华大学 一种空心管式多弹头纳米肿瘤热疗仪器
US11007346B2 (en) 2011-04-22 2021-05-18 Ablative Solutions, Inc. Expandable catheter system for peri-ostial injection and muscle and nerve fiber ablation
US11717345B2 (en) 2011-04-22 2023-08-08 Ablative Solutions, Inc. Methods of ablating tissue using a catheter injection system
US10172663B2 (en) 2011-04-22 2019-01-08 Ablative Solutions, Inc. Expandable catheter system for peri-ostial injection and muscle and nerve fiber ablation
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