WO2022007733A1 - Dispositif de coupe haute fréquence multifonctionnel pour endoscope - Google Patents

Dispositif de coupe haute fréquence multifonctionnel pour endoscope Download PDF

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Publication number
WO2022007733A1
WO2022007733A1 PCT/CN2021/104421 CN2021104421W WO2022007733A1 WO 2022007733 A1 WO2022007733 A1 WO 2022007733A1 CN 2021104421 W CN2021104421 W CN 2021104421W WO 2022007733 A1 WO2022007733 A1 WO 2022007733A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
knife
sheath tube
tube
guide tube
Prior art date
Application number
PCT/CN2021/104421
Other languages
English (en)
Chinese (zh)
Inventor
胡晓刚
韩贯通
高嵩
完颜宏涛
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 WO2022007733A1 publication Critical patent/WO2022007733A1/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
    • 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
    • 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 invention relates to the technical field of medical instruments, and more particularly, to a multifunctional high-frequency cutter for endoscope.
  • the two-finger handle When the high-frequency tool is operated, the two-finger handle needs to be locked by a locking member to avoid accidents in the axial electrode. Sliding, which brings inconvenience to the operation of the medical staff; if the locking member is not locked, when the two-finger handle or the slider is moved, a linkage phenomenon will occur, and misoperation will occur, which will bring unexpected accidents to patients.
  • the axial electrode and the needle tube are arranged side by side in the outer sheath tube, so that the radial dimension of the outer sheath tube is larger.
  • the Chinese patent with the application publication number CN109771027A discloses a multi-functional cutting knife, which relates to a device including a conductive liquid injection knife head, a snare, a cable, an outer tube assembly, and a slip ring and an electrode plug core rod.
  • Multifunctional scalpel for tissue stripping and water injection before and during microscopic mucosal dissection.
  • the Chinese patent with the authorization announcement number CN209074869U discloses a new type of mucosal incision knife, which involves integrating the mucosal incision knife and the injection needle into different cavities of the double-lumen catheter, so as to realize the functions of integrating the injection needle and the mucosal incision knife The new mucosal incision knife.
  • the Chinese patent with the authorization announcement number CN209186932U discloses a high-frequency electric knife for endoscopy with a liquid injection structure, which relates to a liquid injection channel formed by using the gap between the knife body and the distal limit ring to achieve the injection function. Endoscopic high frequency electrosurgery.
  • the Chinese patent with the authorization announcement number CN209186930U discloses a high-frequency electric knife for endoscope with double cutter heads, which relates to a high-frequency electric knife for endoscopy with double cutter heads.
  • the structure uses one cutter head to control the retraction movement of the other cutter head.
  • the Chinese patent with the authorization announcement number CN209916189U discloses a biliary mucosal electrocoagulation bulb, which relates to a biliary mucosal electrocoagulation bulb.
  • the addition of an electrocoagulator at the front end of the device can perform electrocoagulation and hemostasis in time during surgery.
  • U.S. Patent Publication No. US20190298435A1 relates to a shaft with a central lumen connected to an electrode with an electrode lumen at the distal end of the shaft, and the electrode contains one or more electrode lumen exits at different angles with an injection function.
  • High-frequency electrosurgical equipment relates to a shaft with a central lumen connected to an electrode with an electrode lumen at the distal end of the shaft, and the electrode contains one or more electrode lumen exits at different angles with an injection function.
  • the present invention provides a multifunctional high-frequency cutter for endoscope, which integrates the functions of cutting, coagulation and injection needle to achieve three-in-one, and doctors can perform corresponding operation, thus saving the time of changing instruments and improving the efficiency of the operation. .
  • a multifunctional high-frequency cutter for endoscope comprising a sheath tube, an I knife, an electrocoagulation head, a first handle, a second handle, an electrode holder and an injection interface;
  • the rear end of the sheath tube is fixedly connected with the second handle, and a spring guide tube is passed through the sheath tube;
  • a first handle is slidably arranged on the second handle, and the rear end of the spring guide tube is fixedly connected with the first handle , the first handle slides back and forth on the second handle and drives the spring guide tube to move back and forth relative to the sheath tube.
  • the spring guide tube is connected with the connector on the electrode seat, and the inner cavity of the spring guide tube is connected with the injection interface connection;
  • the outer sheath is also sleeved with an outer sheath, the front part of the outer sheath is pierced with the I knife and the electrocoagulation head, the I knife runs through the electrocoagulation head, and the back of the I knife is The end is fixedly connected with the front end of the spring guide tube;
  • the electrocoagulation head is fixed on the front end of the sheath tube, and the I knife is electrically connected with the electrocoagulation head; the outer sheath tube slides backward relative to the sheath tube to expose the electrocoagulation head;
  • the I knife has an inner cavity and is communicated with the spring guide tube; the spring guide tube moves back and forth and drives the I knife to extend and retract from the front end of the outer sheath.
  • the front end of the second handle is also fixed with a sleeve.
  • an outer sheath handle is fixed at the rear end of the outer sheath tube, the outer sheath handle is connected to the sheath tube, and the outer sheath handle moves backwards and drives the outer sheath tube to move backward relative to the sheath tube.
  • the spring guide tube is covered with a plastic coating layer.
  • the second handle includes a handle body and a thumb ring fixed at the rear end of the handle body; the first handle is a double-finger ring structure.
  • the front end of the electrocoagulation head is also fixed with a ceramic pad, and the I knife penetrates the ceramic pad.
  • the injection interface is fixed on the first handle.
  • the I knife is also provided with a radial electrode that is electrically connected to the electrocoagulation head, and the electrocoagulation head is connected to the I knife through the radial electrode.
  • the radial electrode is fixed on the I knife; or, the radial electrode is fixed on the electrocoagulation head.
  • the electrode holder and the second handle are connected by snap connection, interference fit or screw connection.
  • the present invention has the following beneficial effects:
  • the spring guide tube of the present application has both the functions of conduit and conduction, that is, when cutting, the connector on the spring guide tube and the electrode holder is connected with the I knife to form an electrical circuit; during injection, the spring guide tube The inner cavity, the injection interface and the inner cavity of the I knife are connected to form an injection channel; in this way, on the one hand, between the liquid injection and electric cutting functions, through the reverse movement of the corresponding driving member, firstly, the accident of the standby function can be completely eliminated. Start-up to avoid accidental injury to the patient or interference with the surgical process; at the same time, it can reduce unnecessary actions in the operation of the doctor and improve the efficiency of surgery; secondly, it can also avoid the linkage of multiple functional parts in the same direction and cause misoperation Phenomenon;
  • the I knife of the application penetrates the electrocoagulation head, and the electrocoagulation head is worn on the front end of the sheath tube and is fixedly connected with the sheath tube, so that the radial dimension of the sheath tube can be reduced;
  • the internal structure of the high-frequency electrical apparatus is simpler and the manufacturing cost is low.
  • Fig. 1 is the structural representation of the present invention
  • FIG. 2 is a cross-sectional view of an insertion portion of the high-frequency electrical apparatus
  • Fig. 3 is the schematic diagram that I knife of the present invention is in working state
  • FIG. 4 is a schematic diagram of the electrocoagulation head of the present invention in a working state.
  • Reference numerals 1, thumb ring; 2, second handle; 3, first handle; 4, injection interface; 5, electrode holder; 6, connector; 7, cannula; 8, sheath tube; 9, outer sheath Handle; 10, outer sheath tube; 11, ceramic head; 12, I knife; 13, radial electrode; 15, ceramic pad; 16, spring guide tube; 17, plastic coating; 18, electrocoagulation head.
  • This embodiment discloses a multifunctional high-frequency tool for endoscope, as shown in Figures 1-4, comprising a sheath 8, an I knife 12, an electrocoagulation head 18, a first handle 3, a second handle 2, an electrode
  • the electrode seat 5 is provided with a connector 6, while the electrode seat 5 is arranged at the front end of the second handle 2, and is connected with the second handle 2 by snap connection, interference fit or screw connection;
  • the injection interface 4 is fixed on the first handle 3;
  • the rear end of the sheath tube 8 is fixedly connected with the second handle 2, and the sheath tube 8 is provided with a spring guide tube 16, and the spring guide tube 16 is also covered with Insulation layer
  • the first handle 3 is slidably arranged on the second handle 2
  • the rear end of the spring guide tube 16 is fixedly connected with the first handle 3
  • the first handle 3 moves back and forth on the second handle 2 and drives the spring guide tube 16
  • the back and forth movement is performed relative to the sheath tube 8,
  • Injection needle mode push the first handle 3 forward along the second handle 2, and the first handle 3 drives the spring guide tube 16 and the I knife 12 to move forward, so that the I knife 12 extends from the front end of the outer sheath 10 to reach.
  • the inner cavity of the injection interface 4, the spring guide tube 16 and the inner cavity of the I knife 12 are communicated into a channel, and the syringe is connected on the injection interface 4 to carry out the injection operation;
  • High-frequency I knife mode push the first handle 3 forward along the second handle 2, and the first handle 3 drives the spring guide tube 16 and the I knife 12 to move forward, so that the I knife 12 extends from the front end of the outer sheath 10. Go out and reach the working state; At this time, the connector 6, the spring guide tube 16 and the I knife 12 form a connection circuit, and the high frequency is electrically connected to the connector 6, and the I knife 12 cutting operation is carried out;
  • Electrocoagulation mode when the I knife 12 is fully retracted, the outer sheath tube 10 is pulled backward along the sheath tube 8, so that the coagulation head 18 is exposed from the front end of the outer sheath tube 10, and the coagulation head 18 is working at this time. state; at this time, the connector 6, the spring guide tube 16, the I knife 12, the radial electrode 13 and the coagulation head 18 form a connection circuit; the high frequency is electrically connected to the connector 6, and the electric coagulation head 18 is electrically connected. Coagulation and hemostasis operation.
  • the device integrates the functions of the I knife 12, the electrocoagulation head 18 and the injection needle to achieve a three-in-one function.
  • the doctor can perform corresponding operations according to the needs, that is, the electrocoagulation and hemostasis operation can be performed; the normal saline can be injected to raise the lesion; The mucosal tissue can be cut and stripped; this saves the time for changing instruments, improves the efficiency of the operation, and minimizes the pain of the patient.
  • the spring guide tube 16 has both the functions of conduit and conduction, that is, when cutting, the spring guide tube 16, the connector 6 on the electrode holder 5 and the I knife 12 are connected to form an electrical circuit; At the time, the inner lumen of the spring guide tube 16, the injection interface 4 and the inner lumen of the I knife 12 communicate with each other to form an injection channel; in this way, on the one hand, between the liquid injection and the electric cutting function, through the reverse movement of the corresponding driving member, In this way, the accidental activation of the standby function can be completely eliminated, and accidental injury to the patient or interference with the surgical process can be avoided; at the same time, unnecessary actions in the operation of the doctor can be reduced, and the surgical efficiency can be improved; secondly, multiple functional parts can be avoided. On the other hand, the radial size of the sheath tube 8 can be reduced, the internal structure of the device is simpler, and the manufacturing cost is low.
  • the front end of the second handle 2 is also fixed with a sleeve 7, and the outer sheath 10 slides backward to abut against the sleeve 7 and expose the electrocoagulation head 18; at the same time, the rear end of the outer sheath 10 is fixed with an outer sheath handle.
  • the outer sheath handle 9 is sleeved on the sheath tube 8, and the outer sheath handle 9 moves backward and drives the outer sheath tube 10 to move backward relative to the sheath tube 8.
  • the second handle 2 includes a handle body and a thumb ring 1 fixed at the rear end of the handle body; the first handle 3 is a double-finger ring structure, which is convenient for doctors to operate with one hand.

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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 porte sur un dispositif de coupe haute fréquence multifonctionnel pour un endoscope, comprenant un tube de gaine (8), un dispositif de coupe I (12), une tête d'électrocoagulation (18), une première poignée (3), une seconde poignée (2), un support d'électrode (5) et un orifice de connexion d'injection (4). L'extrémité arrière du tube de gaine (8) est reliée de manière fixe à la seconde poignée (2) ; un tube-guide à ressort d'écoulement (16) est disposé dans le tube de gaine (8) de manière pénétrante ; l'extrémité arrière du tube-guide à ressort d'écoulement (16) est relié de manière fixe à la première poignée (3) ; la première poignée (3) se déplace en va-et-vient et entraîne le tube-guide à ressort d'écoulement (16) à effectuer un mouvement de va-et-vient ; la partie avant du tube de gaine (8) est en outre emmanchée avec un tube de gaine externe (10) ; la tête d'électrocoagulation (18) et le dispositif de coupe I (12) pénètrent à travers la partie avant du tube de gaine externe (10) ; l'extrémité arrière du dispositif de coupe I (12) est reliée de manière fixe au tube-guide à ressort d'écoulement (16) ; le dispositif de coupe I (12) est pourvu d'une cavité interne et est en communication avec le tube-guide à ressort d'écoulement (16) ; et le tube-guide à ressort d'écoulement (16) se déplace en va-et-vient et entraîne le dispositif de coupe I (12) à s'étendre et se rétracter à partir de l'extrémité avant du tube de gaine externe (10). L'instrument intègre les fonctions de coupe, d'électrocoagulation et une aiguille d'injection pour obtenir l'effet trois-en-un, de telle sorte qu'un médecin peut conduire des opérations correspondantes selon les besoins, ce qui permet d'économiser le temps de remplacement de l'instrument.
PCT/CN2021/104421 2020-07-08 2021-07-05 Dispositif de coupe haute fréquence multifonctionnel pour endoscope WO2022007733A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010653087.8A CN111671514A (zh) 2020-07-08 2020-07-08 一种内窥镜用多功能高频刀具
CN202010653087.8 2020-07-08

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CN (1) CN111671514A (fr)
WO (1) WO2022007733A1 (fr)

Cited By (1)

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CN117982223A (zh) * 2024-04-03 2024-05-07 武汉金柏威光电技术有限公司 一种多功能经鼻双极电凝装置

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CN111671514A (zh) * 2020-07-08 2020-09-18 安瑞医疗器械(杭州)有限公司 一种内窥镜用多功能高频刀具
CN111671513A (zh) * 2020-07-08 2020-09-18 安瑞医疗器械(杭州)有限公司 一种配合内窥镜使用的高频电器械
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

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CN205054424U (zh) * 2015-06-30 2016-03-02 复旦大学附属中山医院 一种经内镜可粘膜下注射的剥离切开刀
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CN108742832A (zh) * 2018-06-20 2018-11-06 常州乐奥医疗科技股份有限公司 医用电刀
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CN111671514A (zh) * 2020-07-08 2020-09-18 安瑞医疗器械(杭州)有限公司 一种内窥镜用多功能高频刀具
CN213406254U (zh) * 2020-07-08 2021-06-11 安瑞医疗器械(杭州)有限公司 一种内窥镜用多功能高频刀具

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117982223A (zh) * 2024-04-03 2024-05-07 武汉金柏威光电技术有限公司 一种多功能经鼻双极电凝装置

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