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KR102023568B1 - Catheter pullback device system - Google Patents

Catheter pullback device system Download PDF

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KR102023568B1
KR102023568B1 KR1020180134397A KR20180134397A KR102023568B1 KR 102023568 B1 KR102023568 B1 KR 102023568B1 KR 1020180134397 A KR1020180134397 A KR 1020180134397A KR 20180134397 A KR20180134397 A KR 20180134397A KR 102023568 B1 KR102023568 B1 KR 102023568B1
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catheter
ring
pullback device
poly
conductive polymer
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김종원
서영석
김정현
백대열
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원텍 주식회사
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0158—Tip steering devices with magnetic or electrical means, e.g. by using piezo materials, electroactive polymers, magnetic materials or by heating of shape memory materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Clinical applications
    • A61B8/0891—Clinical applications for diagnosis of blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/445—Details of catheter construction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0097—Catheters; Hollow probes characterised by the hub
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M2025/0058—Catheters; Hollow probes characterised by structural features having an electroactive polymer material, e.g. for steering purposes, for control of flexibility, for locking, for opening or closing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1022—Tube connectors; Tube couplings additionally providing electrical connection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/02—General characteristics of the apparatus characterised by a particular materials
    • A61M2205/0233—Conductive materials, e.g. antistatic coatings for spark prevention

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Pulmonology (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Vascular Medicine (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

본 발명은 카테터 풀백 장치 시스템에 관한 것으로 고속회전하는 풀백장치에서 이용이 적합한 재질의 연결부재에 관한 기술을 제시하고자 카테터 및 카테터의 이동운동 및 회전운동을 안내하는 풀백장치, 풀백 장치는 카테터의 회전운동 안내시 전기신호선을 통한 카테터와의 전기적 연결을 유지시키는 연결부재를 포함하며, 연결부재는 고정링, 회전하는 회전링 및 고정링 및 회전링 사이에 위치하는 복수의 볼베어링을 포함하고, 고정링 및 회전링은 전도성 고분자 물질로 마련되는 것을 특징으로 하는 카테터 풀백 장치 시스템을 개시한다.
본 발명에 따른 카테터 풀백 장치 시스템은 다음과 같은 효과가 있다.
첫째, 풀백장치 내 슬립링에 별도 브러시가 없어 브러시가 마모될 염려가 없고, 구조적으로 컴팩트하다.
둘째, 풀백장치 내 슬립링의 회전링 및 고정링이 전도성 고분자 재질로 마련되어 내마모성이 뛰어나 제품 수명이 길고, 낮은 열팽창, 고온 저항성 등이 우수하여 제품 안정성이 뛰어나다.
셋째, 금속 재질이 아닌 전도성 고분자 재질의 슬립링은 비중이 낮아 상대적으로 낮은 토크를 가져 의료용 카테터의 고속 회전 환경에 보다 적합하다.
넷째, 금 등의 금속을 대체하여 전도성 고분자로 제조되는 풀백장치 내 슬립링의 회전링 및 고정링은 상대적으로 제조 공정이 용이하며 제조 단가도 저렴하다.The present invention relates to a catheter pullback device system to a pullback device for guiding the movement and rotational movement of the catheter and catheter, to provide a technique for the connection member of the material suitable for use in a high speed rotating pullback device, the pullback device is the rotation of the catheter And a connecting member for maintaining an electrical connection with the catheter through the electrical signal line during the movement guidance. The connecting member includes a plurality of ball bearings positioned between the fixed ring, the rotating ring and the fixed ring, and the rotating ring. And a rotating ring is made of a conductive polymer material.
The catheter pullback device system according to the present invention has the following effects.
First, since there is no separate brush in the slip ring in the pullback device, there is no fear of the brush being worn, and it is structurally compact.
Second, the rotating ring and the fixed ring of the slip ring in the pullback device are made of a conductive polymer material, which is excellent in wear resistance and long in product life, and has excellent thermal stability and high temperature resistance.
Third, the non-metallic slip ring of the conductive polymer material has a low specific gravity and thus has a relatively low torque, which is more suitable for a high-speed rotating environment of a medical catheter.
Fourth, the rotating ring and the fixed ring of the slip ring in the pullback device made of a conductive polymer by replacing a metal such as gold is relatively easy to manufacture and the manufacturing cost is low.

Description

카테터 풀백 장치 시스템 {Catheter pullback device system}Catheter pullback device system

본 발명은 카테터 풀백 장치 시스템에 관한 것이다.The present invention relates to a catheter pullback device system.

인체의 병변을 진단 및 치료하기 위해 소화기 계열, 심장 및 신경 혈관 계열, 피부 계열, 눈 계열 등 많은 의학 분야에서 의료 영상을 필요로 하고 있다.In order to diagnose and treat lesions of the human body, many medical fields, such as the digestive system, the heart and neurovascular system, the skin, and the eye, require medical imaging.

이때, 혈관계열에 경우를 예를 들면, 혈관의 상태파악을 위해 혈관을 영상화 하는 기술은 초음파를 이용한 혈관 내 초음파(Intravascular Ultrasound; IVUS)영상 획득 기술, 광 산란 특성을 이용한 광 간섭 단층(Optical Coherence Tomography; OCT) 영상획득 기술, 광 흡수 특성을 이용한 광음향(Photoacoustic; PA) 영상 획득 기술 등이 있다.At this time, in the case of vascular series, for example, the technique of imaging blood vessels for detecting the state of the blood vessels includes intravascular Ultrasound (IVUS) image acquisition technology using ultrasonic waves, and optical coherence using optical scattering characteristics. Tomography (OCT) image acquisition technology and photoacoustic (PA) image acquisition technology using light absorption characteristics.

이러한 혈관 영상화 기술들은 혈관 내 카테터(Catheter)를 삽입하여 혈관의 내피 및 내벽 깊은 부분을 실시간으로 영상화하고, 관심영역(Region Of Interest; ROI)에 대한 형태 및 구조를 영상화한다.These vascular imaging techniques insert a catheter in the blood vessel to image the endothelial and inner wall deep portions of the vessel in real time, and image the shape and structure of a region of interest (ROI).

이때, 혈관 영상화를 위해 카테터는 혈관 내를 이동하며 혈관 내 스캐닝을 수행한다.At this time, the catheter moves in the vessel and performs intravascular scanning for vascular imaging.

여기서, 카테터는 혈관 내 스캐닝을 위해 혈관의 길이 방향으로 이동이 이루어져야하며, 혈관 내벽의 손상을 최소화하기 위하여 일정한 힘 및 속도로 이동이 이루어져야한다.Here, the catheter must be moved in the longitudinal direction of the vessel for intravascular scanning, and must be moved at a constant force and speed to minimize damage to the vessel inner wall.

이에 따라, 카테터를 일정한 힘 및 속도로 견인하기 위한 풀백장치의 개발이 다각도로 이루어지고 있으며, 이러한 연구의 일환으로 대한민국 등록특허공보 제10-1487894호 (출원일 : 2013. 07. 15, 등록일 : 2015. 01. 23, 이하 ‘종래기술이라 칭함.)가 제시된바 있다. Accordingly, the development of a pullback device for pulling a catheter at a constant force and speed has been made in various angles, and as part of this research, Korean Patent Publication No. 10-1487894 (Application Date: 2013. 07. 15, Registration Date: 2015 01.23, hereinafter referred to as 'prior art').

종래기술에서 개시된 카테터의 회전운동시 카테터의 헤드와 풀백장치간에 전기적 연결을 유지할 수 있는 슬립링에 있어서, 종래 브러시 타입 슬립링이 가진 접촉저항, 노이즈 등의 문제를 해결하고, 기능 및 성능을 의료용 카테터의 작동 환경에 적합하도록 개선할 필요가 있다. In the slip ring that can maintain the electrical connection between the head and the pullback device of the catheter during the rotational movement of the catheter disclosed in the prior art, to solve the problems such as contact resistance, noise, etc. of the conventional brush type slip ring, and the function and performance for medical use There is a need to improve to suit the catheter's operating environment.

본 발명에 따른 카테터 풀백 장치 시스템은 고속회전하는 풀백장치에서 이용이 적합한 재질의 연결부재에 관한 기술을 제시한다.The catheter pullback device system according to the present invention proposes a technology related to a connection member of a material suitable for use in a high speed rotating pullback device.

본 발명에 따른 카테터 풀백 장치 시스템은 전기신호선이 구비된 튜브를 포함하며, 상기 전기신호선을 통해 음파 신호에 대한 전기적 신호를 출력하거나 입력받는 카테터; 및 상기 튜브가 관통 결합되고, 상기 전기신호선을 통해 상기 카테터와 전기적으로 연결되며, 상기 카테터의 이동운동 및 회전운동을 안내하는 풀백장치;를 포함하고, 상기 풀백장치는 상기 카테터의 회전운동 안내시 상기 전기신호선을 통한 상기 카테터와의 전기적 연결을 유지시키는 연결부재를 포함하며, 상기 연결부재는 내부에 수용공간을 포함하며, 상기 풀백장치에 설치된 채 고정되는 고정링; 상기 고정링의 수용공간에 구비되며, 내부에 마련된 수용공간에 끼움결합되는 회전축의 회전운동에 따라 회전하는 회전링; 및 상기 고정링 및 상기 회전링 사이에 마련되는 수용공간에 위치하는 복수의 볼베어링;을 포함하고, 상기 고정링 및 상기 회전링은 전도성 고분자 물질로 마련되며, 상기 전기신호선이 상기 고정링과 상기 회전링에 각각 연결되고, 상기 전도성 고분자 물질은 Poly(fluorene), polyphenylene, polypyrene, polyazulene, polynaphthalene, Poly(acetylene), Poly(p-phenylene vinylene), poly(pyrrole), polycarbazole, polyindole, polyazepine, polyaniline, poly(thiophene), poly(3,4-ethylenedioxythiophene) 및 poly(p-phenylene sulfide) 중 선택되는 적어도 어느 하나이다.The catheter pullback device system according to the present invention includes a tube having an electrical signal line, the catheter outputs or receives an electrical signal for the sound wave signal through the electrical signal line; And a pull back device through which the tube is coupled, and electrically connected to the catheter through the electric signal line, and guiding the movement and rotation of the catheter, wherein the pull back device guides the rotation of the catheter. A connection member configured to maintain an electrical connection with the catheter through the electric signal line, the connection member including an accommodation space therein and being fixed to the pullback device; A rotation ring provided in the accommodation space of the fixed ring and rotating according to the rotational movement of the rotation shaft fitted to the accommodation space provided therein; And a plurality of ball bearings positioned in a receiving space provided between the fixing ring and the rotating ring, wherein the fixing ring and the rotating ring are made of a conductive polymer material, and the electrical signal line is connected to the fixing ring and the rotating ring. Each of the conductive polymers is poly (fluorene), polyphenylene, polypyrene, polyazulene, polynaphthalene, Poly (acetylene), Poly (p-phenylene vinylene), poly (pyrrole), polycarbazole, polyindole, polyazepine, polyaniline, at least one selected from poly (thiophene), poly (3,4-ethylenedioxythiophene) and poly (p-phenylene sulfide).

본 발명에 따른 카테터 풀백 장치 시스템은 다음과 같은 효과가 있다.The catheter pullback device system according to the present invention has the following effects.

첫째, 풀백장치 내 슬립링에 별도 브러시가 없어 브러시가 마모될 염려가 없고, 볼베어링을 이용하므로 구조적으로 단순화될 수 있다.First, since there is no separate brush in the slip ring in the pullback device, there is no fear of the brush being worn, and since the ball bearing is used, the structure can be simplified.

둘째, 풀백장치 내 슬립링의 회전링 및 고정링이 전도성 고분자 재질로 마련되어 우수한 내마모성, 낮은 열팽창, 고온 저항성 등의 성질을 가지므로 작동 안정성이 뛰어나다.Second, since the rotating ring and the fixing ring of the slip ring in the pullback device are made of a conductive polymer, they have excellent wear resistance, low thermal expansion, and high temperature resistance, thereby providing excellent operational stability.

셋째, 금속 재질이 아닌 전도성 고분자 재질의 슬립링은 비중이 낮아 상대적으로 낮은 토크를 가져 의료용 카테터의 고속 회전 환경에 보다 적합하다. Third, the non-metallic slip ring of the conductive polymer material has a low specific gravity and thus has a relatively low torque, which is more suitable for a high-speed rotating environment of a medical catheter.

넷째, 금 등의 금속을 대체하여 전도성 고분자로 제조되는 풀백장치 내 슬립링의 회전링 및 고정링은 상대적으로 제조 공정이 용이하며 제조 단가도 저렴하다.Fourth, the rotating ring and the fixed ring of the slip ring in the pullback device made of a conductive polymer by replacing a metal such as gold is relatively easy to manufacture and the manufacturing cost is low.

도 1은 본 발명에 따른 카테터 풀백 장치 시스템의 연결부재를 나타낸 개략도이다.
도 2는 본 발명에 따른 카테터 풀백 장치 시스템상의 연결부재를 나타낸 사시도이다.
도 3은 본 발명에 따른 카테터 풀백 장치 시스템에 장착된 연결부재를 나타낸 단면도이다.
도 4는 본 발명에 따른 카테터 풀백 장치 시스템의 연결부재를 이루는 고정링 및 회전링의 재료가 되는 고분자들의 화학식이다.1 is a schematic view showing a connection member of the catheter pullback device system according to the present invention.
Figure 2 is a perspective view showing a connecting member on the catheter pullback device system according to the present invention.
3 is a cross-sectional view showing a connection member mounted on the catheter pullback device system according to the present invention.
Figure 4 is a chemical formula of the polymer material of the fixing ring and the rotating ring forming the connecting member of the catheter pullback device system according to the present invention.

본 발명의 바람직한 실시예에 대하여 더 구체적으로 설명하되, 이미 주지된 기술적 부분에 대해서는 설명의 간결함을 위해 생략하거나 압축하기로 한다.Preferred embodiments of the present invention will be described in more detail, but the already well-known technical parts will be omitted or compressed for brevity of description.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대해 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

본 발명에 따른 카테터 풀백 장치 시스템은 카테터(100), 풀백장치(200)를 포함한다.The catheter pullback device system according to the present invention includes a catheter 100 and a pullback device 200.

카테터(100)는 튜브(110)를 포함하며, 튜브(110)는 전기신호선(111)을 포함한다. 카테터(100) 말단의 헤드는 혈관 내 초음파 신호를 송수신하며, 초음파 변환기가 장착된다. The catheter 100 includes a tube 110, and the tube 110 includes an electrical signal line 111. A head at the end of the catheter 100 transmits and receives an intravascular ultrasound signal and is equipped with an ultrasound transducer.

카테터(100)는 전기신호선(111)을 통해 카테터(100)의 음파 신호에 대한 전기적 신호를 출력하거나 입력받는다.The catheter 100 outputs or receives an electrical signal for a sound wave signal of the catheter 100 through the electrical signal line 111.

풀백장치(200)는 튜브(110)가 관통 결합되고, 전기신호선(111)을 통해 카테터(100)와 전기적으로 연결되며, 카테터(100)의 이동운동 및 회전운동을 안내한다.Pullback device 200 is a tube 110 is coupled through, and electrically connected to the catheter 100 through the electrical signal line 111, and guides the movement and rotational movement of the catheter 100.

도 3에서 보이는 바와 같이 풀백장치(200)는 연결부재(210)를 포함한다.As shown in FIG. 3, the pullback device 200 includes a connection member 210.

풀백장치(200)의 연결부재(210)는 전기신호선(111)을 통해 전기신호를 초음파 변환기에 송신하고, 초음파 변환기로부터 전기신호를 수신하는 펄서/리시버(P)와 전기적으로 연결될 수 있다.The connection member 210 of the pullback device 200 may be electrically connected to a pulser / receiver P that transmits an electrical signal to the ultrasonic transducer through the electrical signal line 111 and receives the electrical signal from the ultrasonic transducer.

다만 도 3에서 보이는 바와 같은 카테터(100), 풀백장치(200) 및 펄서/리시버(P)의 형태 등은 일예시에 불과하다.However, the shapes of the catheter 100, the pullback device 200, and the pulser / receiver P as shown in FIG. 3 are merely examples.

도 1 및 도 2에서 보이는 바와 같이 연결부재(210)는 풀백장치(200)가 카테터(100)의 회전운동을 안내하는 동안 전기신호선(111)은 연결부재(210)와 접촉 연결되어 카테터(100)와 풀백장치(200)간의 전기적 연결을 유지시킨다. 즉, 연결부재(210)는 슬립링 역할을 한다.As shown in FIGS. 1 and 2, the connection member 210 has an electrical signal line 111 in contact with the connection member 210 while the pullback device 200 guides the rotational movement of the catheter 100. ) And the electrical connection between the pullback device 200. That is, the connection member 210 serves as a slip ring.

연결부재(210)는 고정링(211), 회전링(212) 및 복수의 볼베어링(213)을 포함한다.The connection member 210 includes a fixing ring 211, a rotation ring 212 and a plurality of ball bearings 213.

고정링(211)은 내부에 수용공간(a)을 포함하며, 풀백장치(200)에 설치된 채 고정된다. The fixing ring 211 includes an accommodation space a therein, and is fixed while being installed in the pullback device 200.

회전링(212)은 고정링(211)의 수용공간(a)에 구비되며, 내부에 마련된 수용공간(b)에 끼움결합되는 폴백장치(200)의 회전축이 회전함에 따라 회전한다.The rotary ring 212 is provided in the accommodation space (a) of the fixing ring 211, and rotates as the rotation axis of the fallback device 200 fitted to the accommodation space (b) provided therein.

볼베어링(213)은 복수로 마련되며, 고정링(211) 및 회전링(212) 사이에 마련되는 수용공간(c)에 위치한다. 볼베어링(213)은 고정링(211)과 회전링(212)사이의 회전을 용이하게 하도록 마찰을 줄이는 역할을 한다.The ball bearing 213 is provided in plurality, and is located in the accommodation space c provided between the fixed ring 211 and the rotary ring 212. The ball bearing 213 serves to reduce friction to facilitate rotation between the stationary ring 211 and the rotary ring 212.

의료용 카테터의 회전에 필요한 토크 및 회전속도 등의 성능을 갖추기 위하여 연결부재의 고정링(211) 및 회전링(212)은 전도성 고분자 물질로 마련됨이 바람직하다. The fixing ring 211 and the rotation ring 212 of the connection member are preferably made of a conductive polymer material in order to have performances such as torque and rotation speed necessary for the rotation of the medical catheter.

도 4에서 보이는 바와 같이 여기서 전도성 고분자 물질은 바람직하게는 Poly(fluorene), polyphenylene, polypyrene, polyazulene, polynaphthalene, Poly(acetylene), Poly(p-phenylene vinylene), poly(pyrrole), polycarbazole, polyindole, polyazepine, polyaniline, poly(thiophene), poly(3,4-ethylenedioxythiophene), poly(p-phenylene sulfide) 중 선택되는 어느 하나가 될 수 있다.As shown in FIG. 4, the conductive polymer is preferably poly (fluorene), polyphenylene, polypyrene, polyazulene, polynaphthalene, Poly (acetylene), Poly (p-phenylene vinylene), poly (pyrrole), polycarbazole, polyindole, polyazepine , polyaniline, poly (thiophene), poly (3,4-ethylenedioxythiophene), poly (p-phenylene sulfide) can be any one selected from.

즉, 본 발명에 따른 카테터 풀백장치 시스템은 풀백장치(200) 내 연결부재(210)에는 별도 브러시가 없어 브러시가 마모될 염려가 없으며, 구조적으로 컴팩트하다. 또한, 풀백장치 내 연결부재(210)의 회전링(212) 및 고정링(211)이 전도성 고분자 재질로 마련되면 내마모성이 뛰어나 제품 수명이 길고, 낮은 열팽창, 고온 저항성 등이 우수하여 제품 안정성이 뛰어나다. 금속 재질이 아닌 전도성 고분자 재질의 연결부재(210)는 비중이 낮아 상대적으로 낮은 토크를 가져 의료용 카테터의 고속 회전 환경에 보다 적합하다. 그리고 연결부재(210)의 회전링(212) 및 고정링(211)이 금 등의 금속을 대체한 전도성 고분자 재질이므로 상대적으로 제조 공정이 용이하며 제조 단가도 저렴한 효과가 있다.That is, the catheter pullback device system according to the present invention does not have a separate brush in the connection member 210 in the pullback device 200, there is no fear of the brush wear, it is structurally compact. In addition, when the rotary ring 212 and the fixing ring 211 of the connection member 210 in the pullback device is provided with a conductive polymer material, it has excellent wear resistance, long product life, excellent thermal expansion, high temperature resistance, and the like, and excellent product stability. . The connection member 210 of the conductive polymer material other than the metal material has a low specific gravity and thus has a relatively low torque, which is more suitable for a high speed rotation environment of the medical catheter. In addition, since the rotating ring 212 and the fixing ring 211 of the connection member 210 replace conductive metals such as gold, the manufacturing process is relatively easy and the manufacturing cost is also low.

이상에서는 본 발명의 바람직한 실시예 및 응용예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시예 및 응용예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 변형실시가 가능한 것은 물론이고, 이러한 변형실시들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어서는 안 될 것이며 본 발명의 권리범위는 후술하는 청구범위 및 그 균등범위로 이해되어야 할 것이다.While the above has been shown and described with respect to preferred embodiments and applications of the present invention, the present invention is not limited to the specific embodiments and applications described above, the invention without departing from the gist of the invention claimed in the claims Modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention, and the scope of the present invention will be described below. It should be understood that the scope and equivalents thereof.

100: 카테터
110: 튜브
111: 전기신호선
200: 풀백장치
210: 연결부재
211: 고정링
212: 회전링
213: 베어링
P: 펄서/리시버100: catheter
110: tube
111: electric signal line
200: pull back device
210: connecting member
211: retaining ring
212: rotating ring
213: bearing
P: Pulsar / Receiver

Claims (3)

전기신호선이 구비된 튜브를 포함하며, 상기 전기신호선을 통해 음파 신호에 대한 전기적 신호를 출력하거나 입력받는 카테터; 및
상기 튜브가 관통 결합되고, 상기 전기신호선을 통해 상기 카테터와 전기적으로 연결되며, 상기 카테터의 이동운동 및 회전운동을 안내하는 풀백장치;를 포함하고,
상기 풀백장치는
상기 카테터의 회전운동 안내시 상기 전기신호선을 통한 상기 카테터와의 전기적 연결을 유지시키는 연결부재를 포함하며,
상기 연결부재는
내부에 수용공간을 포함하며, 상기 풀백장치에 설치된 채 고정되는 고정링;
상기 고정링의 수용공간에 구비되며, 내부에 마련된 수용공간에 끼움결합되는 회전축의 회전운동에 따라 회전하는 회전링; 및
상기 고정링 및 상기 회전링 사이에 마련되는 수용공간에 위치하는 복수의 볼베어링;을 포함하고,
상기 고정링 및 상기 회전링은 전도성 고분자 물질로 마련되며, 상기 전기신호선이 상기 고정링과 상기 회전링에 각각 연결되고,
상기 전도성 고분자 물질은
Poly(fluorene), polyphenylene, polypyrene, polyazulene, polynaphthalene, Poly(acetylene), Poly(p-phenylene vinylene), poly(pyrrole), polycarbazole, polyindole, polyazepine, polyaniline, poly(thiophene), poly(3,4-ethylenedioxythiophene) 및 poly(p-phenylene sulfide) 중 선택되는 적어도 어느 하나인 것을 특징으로 하는
카테터 풀백 장치 시스템.A catheter including a tube provided with an electrical signal line, and outputting or receiving an electrical signal for a sound wave signal through the electrical signal line; And
And a pullback device through which the tube is coupled and electrically connected to the catheter through the electric signal line, and guides the movement and rotation of the catheter.
The pullback device
And a connecting member for maintaining an electrical connection with the catheter through the electric signal line when guiding the rotational movement of the catheter,
The connecting member
A fixing ring including an accommodation space therein and fixed while being installed in the pullback device;
A rotation ring provided in the accommodation space of the fixed ring and rotating according to the rotational movement of the rotation shaft fitted to the accommodation space provided therein; And
And a plurality of ball bearings positioned in an accommodation space provided between the fixed ring and the rotary ring.
The fixing ring and the rotating ring is made of a conductive polymer material, the electrical signal line is connected to the fixing ring and the rotating ring, respectively,
The conductive polymer material is
Poly (fluorene), polyphenylene, polypyrene, polyazulene, polynaphthalene, Poly (acetylene), Poly (p-phenylene vinylene), poly (pyrrole), polycarbazole, polyindole, polyazepine, polyaniline, poly (thiophene), poly (3,4- ethylenedioxythiophene) and poly (p-phenylene sulfide) is at least one selected from
Catheter pullback device system. 삭제delete 삭제delete
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