WO2022007732A1 - Outil haute fréquence ayant de multiples fonctions - Google Patents

Outil haute fréquence ayant de multiples fonctions Download PDF

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Publication number
WO2022007732A1
WO2022007732A1 PCT/CN2021/104420 CN2021104420W WO2022007732A1 WO 2022007732 A1 WO2022007732 A1 WO 2022007732A1 CN 2021104420 W CN2021104420 W CN 2021104420W WO 2022007732 A1 WO2022007732 A1 WO 2022007732A1
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WO
WIPO (PCT)
Prior art keywords
handle
outer sheath
tube
knife
injection
Prior art date
Application number
PCT/CN2021/104420
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English (en)
Chinese (zh)
Inventor
雷达
高嵩
韩贯通
钱畅
Original Assignee
安瑞医疗器械(杭州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 安瑞医疗器械(杭州)有限公司 filed Critical 安瑞医疗器械(杭州)有限公司
Publication of WO2022007732A1 publication Critical patent/WO2022007732A1/fr

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Classifications

    • 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
    • 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
    • A61B18/1402—Probes for open surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B90/11—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
    • 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
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00607—Coagulation and cutting with the same instrument
    • 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
    • A61B2018/0091—Handpieces of the surgical instrument or device
    • A61B2018/00916—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
    • A61B2018/00958—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device for switching between different working modes of the main function
    • 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
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • A61B2018/1452—Probes having pivoting end effectors, e.g. forceps including means for cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0801—Prevention of accidental cutting or pricking
    • A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002—Irrigation

Definitions

  • the present invention relates to the technical field of medical instruments, and more particularly, to a multifunctional high-frequency cutter.
  • Endoscopic surgery has obvious advantages such as less trauma and fewer complications, such as endoscopic tissue biopsy.
  • Endoscopic mucosal resection mucosal resection, EMR Endoscopic mucosal resection mucosal resection
  • ESD Endoscopic submucosal dissection
  • other common surgical procedures have also passed the test of time and have been widely used.
  • high-frequency electrocautery is used to strip the mucosa and achieve en bloc resection of the diseased tissue.
  • the high-frequency electrosurgical knives on the market usually do not have a water injection function, and the mucus secreted by the patient's digestive tract and the blood stains generated during the operation often block the doctor's field of vision, making it difficult to clearly observe the diseased tissue and accurately cut the knife.
  • more and more endoscopes have their own water and gas valves, which can be used to clean mucus and blood stains, but they are mainly used to clean the soft endoscope lens and light source. Due to insufficient water pressure and too little water, it cannot be used for patient digestion. Clean properly.
  • the main purpose of cleaning the digestive tract is to inject physiological saline into the endoscopic forceps, which results in the phenomenon of repeated instrument replacement during the operation, which greatly increases the operation time and brings pain to the patients.
  • the Chinese patent with the application publication number CN109394335A discloses a high-frequency composite electric knife, which is a two-in-one device for cutting and liquid spraying. It uses a sliding handle to conduct electricity through a steel wire and drive the push-pull knife bar to achieve cutting and marking. Or the shank will always be exposed, posing a risk to the operation.
  • the Chinese patent with the authorized publication number CN209107567U discloses a multifunctional high-frequency electric cutting knife, which is a three-in-one instrument of electrocoagulation, injection and cutting, wherein the electrocoagulation function adopts a pliers cup clamping structure, which is cumbersome to operate.
  • the structure is more complicated and the manufacturing cost is high.
  • the present invention provides a multifunctional high-frequency cutter, which integrates the functions of cutting, marking and spraying liquid to achieve three-in-one, and the doctor can perform corresponding operations as needed, In this way, the time for replacing instruments is saved, and the operation efficiency is improved.
  • a multifunctional high-frequency cutter comprising a head end assembly and a handle assembly, the head end assembly including an outer sheath tube and an O knife;
  • the handle assembly includes a first a handle, a second handle, an electrode holder and an injection interface;
  • the first handle is slidably connected with the second handle; at the same time, the rear end of the outer sheath is connected with the first handle, and the outer sheath is provided with a spring tube, the spring tube is provided with an injection tube, and the injection tube is connected with the second handle Fixed connection, and the injection tube is communicated with the injection interface on the handle assembly; the second handle slides back and forth and drives the injection tube to move back and forth;
  • the front part of the outer sheath is provided with a conductive seat and the O knife, the front end of the spring tube is fixedly connected with the conductive seat, and the rear end of the spring tube is connected with the connector on the electrode seat;
  • a conductive moving block is also fixed on the knife, and the O knife is connected to the conductive seat through the conductive moving block;
  • the rear end of the O-knife is fixedly connected with the injection tube, and the O-knife has an inner cavity and is communicated with the injection pipe; the injection pipe moves back and forth and drives the O-knife to extend and retract from the front end of the outer sheath.
  • the rear end of the outer sheath is slidably connected with the first handle.
  • the O-knife penetrates through the conductive seat.
  • an outer sheath moving block is fixed at the rear end of the outer sheath tube, and the rear end of the outer sheath moving block is slidably connected with the first handle insert sleeve.
  • the outer sheath tube is fixedly connected to the outer sheath moving block through an outer sheath joint, the outer peripheral wall of the outer sheath joint is formed into a tooth shape, and the outer sheath tube is sleeved on the outer peripheral wall of the outer sheath joint.
  • the first handle includes a handle body and a thumb ring fixed at the rear end of the handle body; the second handle is a two-finger handle.
  • a ceramic head is also fixed at the front end of the O-knife.
  • the front end of the O-knife extends along the radial direction of the O-knife to form a radial cutter body, the front part of the O-knife is also fixed with a fixed piece, and the ceramic head is clamped between the radial cutter body and the fixed piece between.
  • the injection interface is fixed on the second handle.
  • the electrode holder and the first handle are connected by snap connection, interference fit or screw connection.
  • the present invention has the following beneficial effects:
  • the high-frequency tool integrates the functions of cutting, marking, electrocoagulation and liquid spray to achieve four-in-one. Doctors can perform corresponding operations as needed to mark the diseased tissue; Cleaning; it can also cut and peel the mucosal tissue; this saves the time for changing instruments, improves the efficiency of the operation, and minimizes the pain of the patient;
  • the internal structure of the high-frequency tool is simpler and the manufacturing cost is low.
  • Fig. 1 is the structural representation of this high frequency cutter
  • Fig. 2 is the structural representation that this high frequency cutter is in cutting function
  • Fig. 3 is the sectional view of Fig. 2;
  • Figure 4 is a cross-sectional view of the head-end assembly
  • FIG. 5 is a cross-sectional view of the assembly of the outer sheath tube and the outer sheath moving block
  • FIG. 7 is a schematic structural diagram of the high-frequency cutter in the function of spraying liquid or marking
  • Fig. 8 is the sectional view of the head end assembly when the high-frequency cutter is in the function of spraying liquid or marking;
  • Fig. 9 is the structural representation that this high frequency cutter is in the electric coagulation function
  • FIG. 10 is a cross-sectional view of the head-end assembly when the high-frequency cutter is in the electrocoagulation function.
  • This embodiment discloses a multifunctional high-frequency knife, as shown in FIGS. 1 to 5 , including a head assembly 10 and a handle assembly 30 .
  • the head assembly 10 includes an outer sheath 21 and an O knife 11 ;
  • the handle assembly 30 It includes a first handle 35, a second handle, an electrode seat and an injection interface 16.
  • the electrode seat is provided with a connector 34, and the electrode seat and the first handle 35 are connected by snap connection, interference fit or screw connection; the first handle 35 It is slidably connected with the second handle; at the same time, the rear end of the outer sheath tube 21 is connected with the second handle, and the outer sheath tube 21 is pierced with a spring tube 22, and the spring tube 22 is pierced with an injection tube 23, and the injection tube 23 and The second handle is fixedly connected, and the injection tube 23 is communicated with the injection interface 16 on the second handle through the injection catheter 25; the second handle moves back and forth and drives the injection tube 23 to move back and forth; the front part of the outer sheath 21 is pierced with a conductive
  • Liquid spraying function As shown in Figures 7 and 8, the rear end of the O knife 11 is fixedly connected with the injection tube 23, and the O knife 11 has an inner cavity and is communicated with the injection tube 23, and the rear end of the injection tube 23 is connected with the injection interface 16 are connected, at this time, the injection port 16, the injection tube 23 and the inner cavity of the O knife 11 are connected to form a liquid channel, the syringe is fixed at the injection port 16, and the liquid can be sprayed from the front end of the O knife 11;
  • Cutting function as shown in Figure 2, Figure 3 and Figure 4, push the outer sheath 21 to move forward, so that the outer sheath 21 wraps the conductive seat 14; push the second handle forward along the first handle 35, the second The handle moves forward and drives the injection tube 23 and the O knife 11 to move forward, so that the O knife 11 protrudes from the front end of the outer sheath tube 21.
  • the connector 34, the spring tube 22, the conductive seat 14, the conductive moving block and the The O knife 11 forms a connected circuit, and the high frequency is electrically connected to the connector 34 to perform the O knife 11 cutting operation;
  • Marking function as shown in Figures 7 and 8, push the outer sheath 21 to move forward, so that the outer sheath 21 wraps the conductive seat 14; pull the second handle backward along the first handle 35, and the second handle is backward Move and drive the injection tube 23 and the O-knife 11 to move backward, so that the O-knife 11 is retracted into the conductive seat 14 and only the O-knife 11 head is exposed.
  • the connector 34, the spring tube 22, the conductive seat 14, the conductive moving block And the O-blade 11 forms a connected circuit to electrically connect the high frequency to the connector 34 to perform the O-blade 11 marking operation.
  • Doctors can perform corresponding operations according to their needs, that is, they can mark the diseased tissue; they can also spray physiological saline to clean the human tissue; they can also cut and peel off the mucosal tissue; this saves the time for replacing instruments, improves the operation efficiency, and maximizes the efficiency of the operation. reduce the suffering of the patient.
  • the outer sheath tube 21 wraps the conductive base 14, and at the same time, the O-knife 11 is retracted into the conductive base 14 and only the head of the O-knife 11 is exposed.
  • the marking function reduces the operation steps of the doctor and improves the operation efficiency.
  • the electric cutting function it is only necessary to push the second handle to move forward along the first handle, so that the O knife 11 protrudes from the front end of the outer sheath tube 21
  • the high frequency is electrically connected to the connector 34, and the O-knife 11 cutting operation can be performed.
  • the operation is relatively simple and convenient, and misoperation is not easy to occur.
  • the rear end of the outer sheath tube 21 is slidably connected with the first handle, and the outer sheath tube 21 moves backward to expose the conductive seat 14.
  • electrocoagulation function as shown in Figures 9 and 10, pull the outer sheath 21 to move backwards, so that the conductive seat 14 is exposed;
  • the handle is pulled backward along the first handle, and the second handle moves backward and drives the injection tube 23 and the O-knife 11 to move backward, so that the O-knife 11 is retracted into the conductive seat 14 and only the O-knife 11 head is exposed.
  • the rear end of the outer sheath tube 21 is fixed with an outer sheath moving block 31 , and the rear end of the outer sheath moving block 31 is slidably connected with the first handle 35 .
  • the outer sheath tube 21 is fixedly connected to the outer sheath moving block 31 through the outer sheath joint 24 , the outer peripheral wall of the outer sheath joint 24 is formed into a tooth shape, and the outer sheath tube 21 is sleeved on the outer peripheral wall of the outer sheath joint 24 . In this way, the assembly of the outer sheath tube 21 and the first handle is facilitated.
  • the outer sheath moving block 31 is moved backward to abut against the first handle and expose the conductive seat 14 .
  • the outer sheath moving block 31 moves backwards to abut against the first handle and restricts the further backward movement of the outer sheath tube 21 , so that the conductive seat 14 is completely exposed at the front end of the outer sheath tube 21 .
  • the first handle 35 includes a handle body and a thumb ring fixed at the rear end of the handle body; the second handle is a two-finger handle 36 . It is convenient for doctors to operate with one hand.
  • the front end of the O knife 11 is also fixed with a ceramic head 12 ; the front end of the O knife 11 extends along the radial direction of the O knife 11 to form a radial knife body, and the front part of the O knife 11 is also A fixed piece 13 is fixed, and the ceramic head 12 is clamped between the radial cutter body and the fixed piece 13 .

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physics & Mathematics (AREA)
  • Otolaryngology (AREA)
  • Plasma & Fusion (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un outil haute fréquence ayant de multiples fonctions, comprenant un ensemble d'extrémité de tête (10) et un ensemble de poignée (30), l'extrémité arrière d'un tube de gaine externe (21) sur l'ensemble d'extrémité de tête (10) est reliée à une première poignée (35), un tube à ressort pénètre dans le tube de gaine externe (21), un tube d'injection (23) pénètre dans le tube à ressort (22), et le tube d'injection (23) est relié de manière fixe à une deuxième poignée. La deuxième poignée se déplace en va-et-vient et entraîne le déplacement du tube d'injection (23) en va-et-vient. Un siège conducteur (14) pénètre dans la portion avant du tube de gaine externe (21), l'extrémité avant du tube à ressort (22) est reliée de manière fixe au siège conducteur (14), et l'extrémité arrière du tube à ressort (22) est reliée à un connecteur (34) sur un siège d'électrode. Une lame en O (11) pénètre également dans la partie avant du tube de gaine externe (21), et la lame en O (11) a une cavité interne et est en communication avec le tube d'injection (23). Le tube d'injection (23) se déplace en va-et-vient et entraîne la dilatation ou la rétractation de la lame en O (11) à partir de l'extrémité avant du tube de gaine externe (21). L'outil haute fréquence comprend quatre fonctions, à savoir la découpe, le marquage, l'électrocoagulation et la pulvérisation de liquide, de sorte qu'un médecin peut effectuer une opération correspondante selon les besoins, ce qui permet de gagner du temps pour remplacer des instruments et d'améliorer l'efficacité chirurgicale.
PCT/CN2021/104420 2020-07-08 2021-07-05 Outil haute fréquence ayant de multiples fonctions WO2022007732A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010652112.0A CN111658128B (zh) 2020-07-08 2020-07-08 一种具有多功能的高频刀具
CN202010652112.0 2020-07-08

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WO2022007732A1 true WO2022007732A1 (fr) 2022-01-13

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WO (1) WO2022007732A1 (fr)

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CN111658128B (zh) * 2020-07-08 2023-09-22 安瑞医疗器械(杭州)有限公司 一种具有多功能的高频刀具
CN112545641B (zh) * 2020-11-27 2024-10-01 深圳开立生物医疗科技股份有限公司 高频电刀
CN112790856B (zh) * 2021-01-18 2022-04-05 山东第一医科大学附属肿瘤医院(山东省肿瘤防治研究院、山东省肿瘤医院) 一次性使用带有注射针的粘膜切开刀及使用方法
CN113229891B (zh) * 2021-05-21 2024-03-12 以诺康医疗科技（苏州）有限公司 多功能手术器械
CN113081245A (zh) * 2021-05-25 2021-07-09 诸暨市鹏天医疗器械有限公司 一种多功能切开刀
CN114404025A (zh) * 2022-01-22 2022-04-29 江苏邦士医疗科技有限公司 一种柔性等离子电极
CN118121270A (zh) * 2024-03-27 2024-06-04 江苏唯德康医疗科技有限公司 一种黏膜切开刀

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CN108309439A (zh) * 2018-05-09 2018-07-24 诸暨市鹏天医疗器械有限公司 一种针头可调式切开刀及其使用方法
CN209611076U (zh) * 2018-11-21 2019-11-12 南京微创医学科技股份有限公司 一种医用连接装置
CN111658128A (zh) * 2020-07-08 2020-09-15 安瑞医疗器械(杭州)有限公司 一种具有多功能的高频刀具
CN213430509U (zh) * 2020-07-08 2021-06-15 安瑞医疗器械(杭州)有限公司 一种具有多功能的高频刀具

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