CN102626329A - Radiofrequency ablation negative pressure automatic biopsy gun - Google Patents

Abstract

Translated fromChinese

本发明涉及一种射频消融负压自动活检枪，属于临床医学及医疗器械领域。本发明在目前病理活检枪应用的基础上，引入射频消融装置，以解决病理穿刺活检伴随的活检有效率不够高、针道出血、针道种植转移问题。本发明为一套负压自动活检针与射频消融针(正极)共用一外套管(负极)系统。负压自动活检针，其尾部为圆筒状，是一六滑动体、四弹性卡槽、双弹簧的装置；其头部标本槽与中空针体相通，标本槽锋利刀口与外套管锋利刀口可对切。射频消融针为一单头双极装置。击发装置为一软硬牵相结合的机械装置。此发明可用于肾脏、肝脏、肺脏、乳腺、甲状腺、胰腺、前列腺、睾丸、子宫、卵巢、体表肿块及淋巴结等的活检与消融。

The invention relates to a radio frequency ablation negative pressure automatic biopsy gun, which belongs to the field of clinical medicine and medical equipment. Based on the current application of pathological biopsy guns, the present invention introduces a radiofrequency ablation device to solve the problems of insufficient biopsy efficiency, needle tract bleeding, and needle tract implantation and transfer accompanying pathological biopsy. The present invention is a set of negative pressure automatic biopsy needles and a radio frequency ablation needle (positive pole) sharing one outer casing (negative pole) system. The negative pressure automatic biopsy needle has a cylindrical tail, which is a device with six sliding bodies, four elastic slots, and double springs; the specimen slot at the head communicates with the hollow needle body, and the sharp knife edge of the specimen slot can be connected with the sharp knife edge of the outer sleeve. Diagonal. The radiofrequency ablation needle is a single-headed bipolar device. The firing device is a mechanical device combining soft and hard pulling. This invention can be used for biopsy and ablation of kidney, liver, lung, breast, thyroid, pancreas, prostate, testis, uterus, ovary, body surface mass and lymph node.

Description

Translated fromChinese

射频消融负压自动活检枪Radiofrequency ablation negative pressure automatic biopsy gun

一.技术领域：临床医学，医疗器械。 1. Technical fields: clinical medicine, medical equipment. the

二.背景技术：射频(radiofrequency，RF)是一种电磁波。射频消融(radiofrequency ablation，RFA)是用一定频率(通常500Hz)电磁波损毁生物体内已发生病变的组织达到治疗疾病的目的，属于局部微创热疗技术。RFA不引起生物体神经肌肉反应和生物电离效应，20年来临床广泛应用于实体性肿瘤及非肿瘤患者。 2. Background technology: radio frequency (radiofrequency, RF) is a kind of electromagnetic wave. Radiofrequency ablation (radiofrequency ablation, RFA) is to use a certain frequency (usually 500Hz) electromagnetic waves to destroy the diseased tissue in the living body to achieve the purpose of treating the disease, which belongs to the local minimally invasive hyperthermia technology. RFA does not cause biological neuromuscular response and bioionization effect, and has been widely used clinically in patients with solid tumors and non-tumors for 20 years. the

病理穿刺活检临床已应用50余年。活检枪20年来临床应用逐渐增多，自动活检枪及负压活检枪时见报道，负压自动活检枪文献鲜见。中国市场充斥着美国巴德、强生，德国宝雅，意大利普利赛、德迈特，日本TSK、八光等系列活检针(枪)。目前所有的活检针(枪)在应用上均有一定缺陷及并发症，臂如：穿刺有效率75-95％，针道出血率1.7-15.9％，针道肿瘤种植率2.1-8％等。 Pathological biopsy has been used clinically for more than 50 years. The clinical application of biopsy guns has gradually increased in the past 20 years. Automatic biopsy guns and negative pressure biopsy guns have been reported frequently, but literature on negative pressure automatic biopsy guns is rare. The Chinese market is filled with series of biopsy needles (guns) such as Bard & Johnson of the United States, Baoya of Germany, Puliser and Demet of Italy, TSK of Japan, and Yaguang. At present, all biopsy needles (guns) have certain defects and complications in application, such as: puncture effective rate 75-95%, needle tract bleeding rate 1.7-15.9%, needle tract tumor implantation rate 2.1-8% and so on. the

三.发明内容：3. Contents of the invention:

1.目的：本发明为射频消融负压自动活检枪，可极大提高病理穿刺活检的有效率，最大限度地避免了针道出血及针道肿瘤种植的发生。 1. Purpose: The present invention is an automatic biopsy gun for radiofrequency ablation negative pressure, which can greatly improve the efficiency of pathological biopsy, and avoid the occurrence of needle tract bleeding and needle tract tumor implantation to the greatest extent. the

2.技术方案：本发明由一共同外套管的负压自动活检针及射频消融针组成。负压自动活检针尾部为一圆筒状操作体，内置一支撑架，包括负压舱均由医用聚丙烯制成；负压舱内针体有两个侧孔，舱外尾部有一带塞抽吸孔。射频消融针头部置有热电偶，针体中空，针头部有两个侧孔，针头1-3cm以下涂有绝缘层，针尾部可接注射器并有热电偶导线正极导线连接。外套管后1/2涂有绝缘层并有长度刻度标示，尾端连接负极导线，尾部持柄与活检针和射频消融针相匹配吻合。 2. Technical solution: The present invention consists of a negative pressure automatic biopsy needle and a radiofrequency ablation needle with a common overtube. The tail of the negative pressure automatic biopsy needle is a cylindrical operating body with a built-in support frame. The negative pressure chamber is made of medical polypropylene; suction hole. The head of the radiofrequency ablation needle is equipped with a thermocouple, the needle body is hollow, and the needle head has two side holes. The needle head is 1-3cm below the needle and coated with an insulating layer. The rear 1/2 of the outer cannula is coated with an insulating layer and marked with a length scale. The tail end is connected to the negative electrode lead, and the handle at the tail is matched with the biopsy needle and the radiofrequency ablation needle. the

活检针头端到达指定位置后，推压负压舱(1)向前与圆筒状操作体尾端平齐，同时负压舱滑体(2)顺连动杆(3)划过连动杆弹性卡(4)，并沿滑道推动负压舱弹簧(5)进入其弹性卡位(6)；负压舱活塞(7)及滑体(8)沿滑道进入其弹性卡位(9)；针滑体(10)沿滑道推动针体弹簧(11)进入其弹性卡位(12)，针头锋利刀口(13)与外套管锋利刀口张开(14)，标本槽(15)深入病变组织。掀动(或者外拉式)按钮(16)，硬推动杆(17)带动软连杆(18)致负压舱滑体弹性卡向内移位，击发启动，在活塞固定不动的情况下，负压舱及其弹簧复位，负压形成，组织紧贴附于标本槽。负压舱弹簧复位末段带动连动杆致针滑体弹性卡向外移位，针体及其弹簧复位，针头端组织切割活检完成。拔出活检针，置入带绝缘涂层(19)的射频消融针，射频消融2-3min后，拔出带绝缘涂层(19)的外套管。 After the end of the biopsy needle reaches the designated position, push the negative pressure chamber (1) forward to be flush with the tail end of the cylindrical operating body, and at the same time, slide the negative pressure chamber (2) along the linkage rod (3) across the linkage rod elastic card (4), and push the negative pressure cabin spring (5) into its elastic clamping position (6) along the slideway; the negative pressure cabin piston (7) and sliding body (8) enter its elastic clamping position (9) along the slideway ); the needle sliding body (10) pushes the needle body spring (11) along the slideway to enter its elastic clamping position (12), the sharp edge of the needle (13) and the sharp edge of the outer sleeve are opened (14), and the specimen groove (15) goes deep diseased tissue. Tilt (or pull out) the button (16), the hard push rod (17) drives the soft connecting rod (18) to cause the elastic card of the sliding body in the negative pressure cabin to move inward, and the firing starts. When the piston is fixed , the negative pressure cabin and its spring return, the negative pressure is formed, and the tissue is tightly attached to the specimen groove. The end section of the negative pressure cabin spring reset drives the linkage rod to cause the elastic card of the needle sliding body to shift outward, the needle body and its spring reset, and the tissue cutting biopsy at the needle end is completed. Pull out the biopsy needle, insert the radiofrequency ablation needle with insulating coating (19), and pull out the outer cannula with insulating coating (19) after 2-3 minutes of radiofrequency ablation. the

四.附图说明：图1是负压自动活检枪尾部示意图；图2是负压自动活检枪击发装置示意图；图3是负压自动活检枪针头示意图；图4是射频消融针示意图。 4. Description of drawings: Figure 1 is a schematic diagram of the tail of the negative pressure automatic biopsy gun; Figure 2 is a schematic diagram of the firing device of the negative pressure automatic biopsy gun; Figure 3 is a schematic diagram of the needle of the negative pressure automatic biopsy gun; Figure 4 is a schematic diagram of the radiofrequency ablation needle. the

五.实施方式：在CT或超声或钼靶机的引导下，局麻后，尖刀片在皮肤上刺一2mm小口，射频消融负压自 动活检枪完成活检及射频消融，按压穿刺孔2min，创可贴覆盖，标本送病理检查。适用于肾脏、肝脏、肺脏、乳腺、甲状腺、前列腺、胰腺、睾丸、子宫、卵巢、体表肿块及淋巴结等的活检。 5. Implementation method: Under the guidance of CT or ultrasound or mammography machine, after local anesthesia, a sharp blade will pierce a 2mm small incision on the skin, and the radiofrequency ablation negative pressure automatic biopsy gun will complete the biopsy and radiofrequency ablation, and press the puncture hole for 2 minutes. Covered with a band-aid, the specimen was sent for pathological examination. It is suitable for biopsy of kidney, liver, lung, breast, thyroid, prostate, pancreas, testis, uterus, ovary, body surface mass and lymph node. the

Claims (4)

Translated fromChinese

1.射频消融针与负压自动活检针相结合，其标志性装置为共用一外套管，此外套管为射频消融针的负极。1. The radiofrequency ablation needle is combined with the negative pressure automatic biopsy needle, and its iconic device is a shared outer sleeve, which is the negative electrode of the radiofrequency ablation needle.2.一种负压自动活检枪。其特征是：尾部——圆筒状，六滑动体(负压舱，活塞，针体，针体弹簧，负压舱弹簧，连动杆)，四弹性卡槽(负压舱弹簧卡槽，针体弹簧卡槽，活塞滑体卡槽，连动杆卡槽)，双弹簧(负压舱弹簧，针体弹簧)。头部——标本槽与中空针体相通，标本槽锋利刀口与外套管锋利刀口可对切。2. A negative pressure automatic biopsy gun. Its features are: tail-cylindrical, six sliding bodies (negative pressure cabin, piston, needle, needle spring, negative pressure cabin spring, linkage rod), four elastic slots (negative pressure cabin spring slot, Needle body spring slot, piston sliding body slot, linkage rod slot), double springs (negative pressure chamber spring, needle spring). Head—the specimen slot communicates with the hollow needle body, and the sharp knife edge of the specimen slot can be cut in half with the sharp knife edge of the outer tube.3.一种单头双极射频消融针。其特征是：中空针体为正极，热电偶置于针头体内，针头端带2-4个侧孔，针头1-3cm以下涂有绝缘层，针体尾端带连接导线并可接注射器。外套管为负极，后1/2外壁涂有绝缘隔热层并有长度刻度标示；外套管尾端带连接导线，有一与活检针和射频消融针匹配吻合的持柄。3. A single-head bipolar radiofrequency ablation needle. Its characteristics are: the hollow needle body is the positive electrode, the thermocouple is placed in the needle body, the needle end has 2-4 side holes, the needle is coated with an insulating layer below 1-3cm, and the needle tail is equipped with a connecting wire and can be connected to a syringe. The outer cannula is a negative electrode, and the rear 1/2 outer wall is coated with an insulating layer and marked with a length scale; the end of the outer cannula has a connecting wire and a handle that matches the biopsy needle and the radiofrequency ablation needle.4.击发装置为一软硬牵相结合的机械装置。4. The firing device is a mechanical device combining soft and hard pull.

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