WO2018040061A1 - 一种内镜用组织切开装置 - Google Patents

一种内镜用组织切开装置 Download PDF

Info

Publication number
WO2018040061A1
WO2018040061A1 PCT/CN2016/097865 CN2016097865W WO2018040061A1 WO 2018040061 A1 WO2018040061 A1 WO 2018040061A1 CN 2016097865 W CN2016097865 W CN 2016097865W WO 2018040061 A1 WO2018040061 A1 WO 2018040061A1
Authority
WO
WIPO (PCT)
Prior art keywords
rigid body
restricting
cutting wire
cutting
restricting mechanism
Prior art date
Application number
PCT/CN2016/097865
Other languages
English (en)
French (fr)
Inventor
程永华
韩春琦
Original Assignee
杭州安杰思医学科技有限公司
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 杭州安杰思医学科技有限公司 filed Critical 杭州安杰思医学科技有限公司
Priority to PCT/CN2016/097865 priority Critical patent/WO2018040061A1/zh
Publication of WO2018040061A1 publication Critical patent/WO2018040061A1/zh

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • 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

Definitions

  • the invention relates to the field of medical instruments, in particular to an interventional tissue incision device for endoscopic treatment.
  • Duodenal endoscopic sphincterotomy (hereinafter referred to as EST) is further developed based on the therapeutic technique of endoscopic retrograde cholangiopancreatography (ERCP), which is performed under endoscopy.
  • ERCP endoscopic retrograde cholangiopancreatography
  • EST is an important therapeutic technique in the field of endoscopy and a prerequisite for other endoscopic treatments.
  • EST has the advantages of small surgical trauma, rapid postoperative recovery, and high success rate. Therefore, the application of EST is gradually becoming widespread.
  • High-frequency incising knife is a necessary tool in EST surgery.
  • the existing high-frequency incision knife includes tapered tip, multi-lumen tube, shredded wire, high-frequency electrode plug, guide wire lumen inlet, handle, tip coating;
  • the frequency electrode plug is inserted into the handle by mechanical snapping, and the proximal end of the multi-lumen tube is connected with the handle by in-line injection molding; the end of the cutting wire is connected with the high-frequency electrode plug; the inlet of the guide wire cavity is located at the proximal end of the multi-lumen tube .
  • the direction of the shred is controlled by rotating the handle to facilitate cutting angle adjustment during endoscopic surgery.
  • the main body of the shredded wire is a large-diameter portion, and is gathered into a small-diameter portion at a cutting portion that is in contact with the tissue.
  • the present invention has been made in view of the above circumstances, and an object of the invention is to provide a tissue incision device for an endoscope which is structurally sound, simple, and stable, and can effectively prevent a shredded yarn from being broken due to excessive rotation.
  • the present invention provides a tissue incision device for endoscope, comprising:
  • the cutting portion comprising a shredded wire, and a conductive mechanism electrically connected to the cutting wire;
  • the manipulation portion is disposed at a proximal end of the cutting wire for controlling the rotation and advancement and retreat of the cutting wire;
  • a proximal end of the housing is fastened to a distal end of the operating portion, and at least two cavities are disposed in the housing for respectively passing the cutting wire and arranging the conductive mechanism;
  • the endoscopic tissue dissection device further includes a restriction mechanism for limiting the number of rotations of the shreds, the restriction mechanism comprising:
  • the rigid body is disposed on a periphery of a proximal end of the cutting wire and coaxial with the cutting wire, and a cross section of the rigid body along a radial direction of the cutting wire is a non-circular shape;
  • the first restricting mechanism is disposed on the outer circumference of the rigid body and achieves circumferential fixation with the rigid body;
  • the second limiting mechanism matching the first limiting mechanism to limit the number of revolutions of the first limiting mechanism.
  • the restriction mechanism further includes a stop mechanism disposed at both ends of the first restriction mechanism or the second restriction mechanism for controlling a stroke range of the first restriction mechanism.
  • the first restricting mechanism has a passage matching the shape of the rigid body such that the first restricting structure is slidable along an axial direction of the rigid body.
  • the first restriction mechanism is fixedly coupled to the rigid body.
  • the restricting mechanism further includes a sliding bracket disposed inside the casing and slidable along an axial direction of the cutting wire, and the second restricting mechanism is fixedly disposed on the sliding bracket,
  • the sliding bracket has an opening in an axial direction of the first restricting mechanism, and the first restricting mechanism is disposed in the opening.
  • the first restriction mechanism is an externally threaded element and the second restriction mechanism is an internally threaded element that mates with the externally threaded element.
  • the first limiting mechanism is a gear and the second limiting mechanism comprises a rack that cooperates with a gear.
  • the operating portion includes a circumferential control mechanism that controls the rotation of the cutting wire and an axial control mechanism that controls the advancement and retreat of the cutting wire, the cutting wire being fixedly coupled to the axial control mechanism, the axial direction A control mechanism is slidably disposed on the circumferential control mechanism, and the axial control mechanism is circumferentially locked with the circumferential control mechanism to rotate the cutting wire under the driving of the circumferential control mechanism.
  • the rigid body is a guiding tube that is bored in the housing.
  • the conductive mechanism comprises an electrode plug and a copper sleeve matched with the electrode plug, and the copper sleeve is sleeved outside the rigid body for the rigid body to pass through.
  • a spring is disposed on the cutting wire near the distal end of the second limiting mechanism, and a distal end of the spring is provided with a metal ring, and the spring, the cutting wire and the metal ring are electrically connected sexual connection.
  • the circumferential control mechanism is a rotary handle
  • the axial control mechanism is a sliding handle
  • the strength of the shred wire can be enhanced, and the non-circular shape of the rigid body enables the circumferential torque to be transmitted between the first restricting mechanism and the rigid body, thereby ensuring the surgical effect;
  • the limiting mechanism for limiting the number of rotations of the shreds limits the maximum number of revolutions of the shreds, avoiding the breakage of the shreds due to excessive rotation, and further controlling the shreds by providing a stop mechanism on both sides of the restricting mechanism Rotation; in the present invention, the control portion and the conductive mechanism are simplified, and the stability of the device can be further improved.
  • Figure 1 is a cross-sectional view showing a first embodiment of the present invention
  • FIG. 2 is a schematic structural view of a cutting pole of a cutting portion according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic structural view of a multi-lumen tube according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic structural view of a restriction mechanism according to Embodiment 1 of the present invention.
  • 5(a), 5(b), and 5(c) are schematic views showing a cross-sectional shape of a maximum diameter portion of a guide tube according to Embodiment 1 of the present invention.
  • Figure 6 is a cross-sectional view showing a modification of the restriction mechanism according to the first embodiment of the present invention.
  • Figure 7 is a cross-sectional view showing a second embodiment of the present invention.
  • Figure 8 is a cross-sectional view showing a restriction mechanism according to a second embodiment of the present invention.
  • Figure 9 is a partial cross-sectional view showing a third embodiment of the present invention.
  • Figure 10 is a cross-sectional view showing the restriction mechanism of the third embodiment taken along line A-A of Figure 9;
  • Figure 11 is a partial cross-sectional view showing a fourth embodiment of the present invention.
  • Figure 12 is a cross-sectional view showing a restriction mechanism of a fourth embodiment of the present invention.
  • the incision device of the present invention comprises a cutting portion, a manipulation portion 20, and a housing 30;
  • the cutting portion includes a shred 12 and a conductive mechanism 11 electrically connected to the shred 12;
  • the manipulation portion 20 is disposed at the proximal end of the shred 12 for controlling the rotation and advancement and retreat of the shred;
  • the housing 30, the proximal end of the housing 30 is snapped to the distal end of the control portion 20, and at least two cavities are disposed in the housing 30 for respectively passing the cutting wire 12 and arranging the conductive mechanism 11;
  • the incision device of the present invention further includes a restriction mechanism for limiting the number of rotations of the shred, the restriction mechanism comprising: the rigid body 50, the first restriction mechanism 41, and the second restriction mechanism 42.
  • the proximal end refers to one end of the operator near the operator, that is, one end close to the manipulation portion; the distal end refers to one end away from the operator.
  • the shredded wire is made of a conductive material, such as metal;
  • the conductive mechanism 11 includes an electrode plug 111 and a copper sleeve 112 that cooperates with the electrode plug 111.
  • One end of the electrode plug 111 is connected to an external high-frequency power source, and the other end is connected to
  • the copper sleeve 112 and the shred 12 are in an electrically conductive connection.
  • the copper sleeve 112 is sleeved outside the rigid body 50, and the rigid body 50 can pass through the copper sleeve 112.
  • the rigid body 50 in the present invention is a cylinder, such as a metal guide tube having rigidity.
  • control unit 20 includes a circumferential control mechanism 21 that controls the rotation of the shred 12 and an axial control mechanism 22 that controls the advance and retreat of the shred, the shred 12 is fixedly coupled to the axial control mechanism 22, and the axial control mechanism 22 is slidably disposed in the circumference.
  • the axial control mechanism 22 and the circumferential control mechanism 21 are circumferentially locked so that the shred can be rotated by the drive of the circumferential control mechanism 21.
  • the circumferential control mechanism 21 is a rotary handle
  • the axial control mechanism 22 is a sliding handle
  • the sliding handle is slidable.
  • the ground sleeve is disposed on the axially hollow rotating handle and is circumferentially locked with the rotating handle; the proximal end of the cutting wire 12 is fixedly connected with the sliding handle, and the sliding handle and the rotating handle are circumferentially locked, so that the rotating handle can be rotated when rotated The wire 12 rotates.
  • an insulating sleeve 51 may be disposed on the rigid body 50 of the copper sleeve 112 on the side close to the circumferential control mechanism 21.
  • the housing 30 can be a lining assembly with the proximal end snapped to the distal end of the manipulation portion 20, specifically, the distal end of the circumferential control mechanism 21 and the proximal end of the housing 30 are axially locked. Both are connected by a "snap" type to enable the circumferential control mechanism 21 to rotate circumferentially relative to the housing 30.
  • At least two cavities are disposed in the housing 30, one of which is for passing the shreds 12, and the other is for the placement of the conductive mechanism 11.
  • a first cutting cavity 31 a first guide wire cavity 32, a first injection cavity 33, an electrode cavity 34, and a shredded wire 12 are disposed in the housing 30. It is inserted into the first cutting cavity 31.
  • the electrode chamber 34 is in communication with the first cutting chamber 31, and an electrode plug 111 and a copper sleeve 112 are disposed therein.
  • the distal end of the housing 30 is further covered with a housing 36.
  • the distal end of the housing 36 is provided with a Luer connector 35.
  • the Luer connector 35 is connected to the multi-lumen tube 13, and the multi-lumen tube 13 has a second cutting chamber 131.
  • the two guide wire lumens 132, the second injection cavity 133, the shredded wire 12, the guide wire and the injection solution respectively enter the inside of the tissue from the above-mentioned cutting cavity, the guide wire cavity and the injection cavity.
  • the second cutting cavity 131 is provided with an opening at an end away from the outer casing 36.
  • the diameter of the cutting wire 12 becomes smaller near the opening, and is changed from the large diameter portion 121 to the small diameter portion 122, and the small diameter portion 122 and the multi-cavity of the cutting wire 12.
  • the tube 13 is configured as a "bow" shaped cutting pole 14 (shown in Figure 2).
  • Restricted institutions include:
  • the rigid body 50 is disposed on the outer periphery of the proximal end of the shred 12 and coaxial with the shred 12, and the cross section of the rigid body 50 in the radial direction of the cutting wire is non-circular, so that the torque of the shred 12 can be improved;
  • the first restricting mechanism 41 is disposed outside the rigid body 50 and circumferentially locked with the rigid body 50, that is, no circumferential rotation occurs between the first restricting mechanism 41 and the rigid body 50, and the rotation of the rigid body 50 can drive the first limit. Rotation of mechanism 41;
  • the second restricting mechanism 42 is matched with the first restricting mechanism 41 for limiting the number of revolutions of the first restricting mechanism 41, wherein the first restricting mechanism 41 and the second restricting mechanism 42 are both located in the housing 31. Inside.
  • the cross section of the largest diameter portion of the rigid body 50 is a flat circular shape on one side, and the first restricting mechanism 41 is disposed on the outer circumference of the rigid body 50 coaxially with the cutting wire 12, and the first restricting mechanism 41 has a channel matching the shape of the rigid body 50.
  • a slide that matches the cross-sectional shape of the largest diameter portion of the rigid body 50 is used to achieve circumferential locking and axial sliding of the rigid body 50 and the first restricting mechanism 41.
  • the first restricting mechanism 41 is an externally threaded member, such as a screw or the like; and the second restricting mechanism 42 is disposed at an outer circumference of the first restricting mechanism 41 and is threadedly engaged with the first restricting mechanism 41. It can be an internally threaded component such as a nut or the like.
  • the first limiting mechanism is disposed coaxially with the second limiting mechanism, the axial length of the second limiting mechanism 42 is greater than the axial length of the first limiting mechanism 41, and the second limiting mechanism 42 is along the advancing and retracting direction of the cutting wire.
  • the effective stroke length of the second restricting mechanism is twice the stroke of the first restricting mechanism when the shred reaches the maximum number of revolutions in the same direction.
  • the cross-sectional shape of the largest diameter portion of the rigid body 50 is a flat circular shape on one side in the present embodiment, the shape is not limited as long as the torque can be transmitted circumferentially, as shown in FIGS. 5(a) and (b). ), (c) irregular polygons, raised circles, key connections, and the like.
  • the rigid body 50 may extend to the shred 12 adjacent to the circumferential control mechanism 21, and the rigid body 50 passes through the circumferential control mechanism 21 in the axial direction of the shred 12
  • the wire is fixedly connected to the axial control mechanism 22, and the wire 12 is fixedly coupled to the rigid body 50.
  • the proximal end of the second limiting mechanism 42 abuts the copper sleeve 112, and the metal blocking piece 43 is disposed at the distal end of the second limiting mechanism 42.
  • the distance between the blocking piece 43 and the copper sleeve 112 is the first limit. The maximum travel of the mechanism 41.
  • the first restricting mechanism 41 is disposed at the middle of the second restricting mechanism 42, and the distance from the blocking piece 43 or the boundary between the copper sleeve 112 and the second restricting mechanism 42 is a preset maximum number of revolutions of the shred 12
  • the second limiting mechanism 42 has a product of the pitch of the threads, so that the shred 12 can be rotated clockwise or counterclockwise to a preset maximum number of revolutions (eg, five turns) until reaching the flap 43 or the copper sleeve 112 meets the second restriction mechanism 42. Stop at the station.
  • the torque generated between the large diameter portion 121 and the small diameter portion 122 of the shred 12 in the range of the maximum number of revolutions is smaller than the breaking torque.
  • a spring 113 is disposed on the distal end of the first cutting chamber 31.
  • the spring 113 is sleeved on the cutting wire 12.
  • the distal end of the spring 113 is fixedly provided with a metal ring 114.
  • the proximal end of the spring is electrically connected to the copper sleeve 112.
  • the electrode The plug 111, the copper sleeve 112, the spring 113, the metal ring 114 and the shred 12 are always electrically connected.
  • first restricting mechanism 41 and the second restricting mechanism 42 are circumferentially complete structures in the present embodiment, they are not limited in shape, and may be as shown in FIG. 6, as long as they are rotated in the first restricting mechanism 41.
  • the second restricting mechanism 42 cooperates with it to limit the advancement and retreat of the first restricting mechanism 41 in the axial direction.
  • the restriction mechanism further includes a stop mechanism, and the stop mechanism may be disposed at both ends of the first restriction mechanism or the second restriction mechanism for controlling the stroke range of the first restriction mechanism.
  • the stopping mechanism is constituted by the blocking piece 43 and the copper sleeve 112, and the blocking piece 43 and the copper sleeve 112 prevent the travel of the first restricting mechanism 41 at both ends of the second restricting mechanism 42, but the stop of the present invention
  • the mechanism is not limited thereby, and it may also be two blocking blocks disposed at a preset position on the path of the second restriction mechanism 42.
  • the rotation limit and the slitting operation constituted by the tissue incision device constructed as above will be explained here.
  • the cutting pole 14 approaches the band cutting tissue under the guidance of the guide wire, and the angle of the cutting electrode 14 is rotated by rotating the circumferential direction control mechanism 21.
  • the shred 12 is rotated by the circumferential control mechanism 21, and the rigid body 50 is fixedly coupled to the shred 12 to drive the first restricting mechanism 41 that is circumferentially locked with the rigid body 50 to rotate, while the first restricting mechanism 41 is in the second restricting mechanism.
  • the engagement of 42 is advanced or retracted in the axial direction, and no longer advances when the flap 43 is reached, and the rotation is restricted.
  • the cutting wire 12 When cutting, the cutting wire 12 is energized and the axial control mechanism 22 is pulled to move the cutting wire 12 backward to complete the cutting.
  • the rigid body 50 fixedly connected thereto slides in the sliding channel, and the spring 113 abuts against the copper sleeve 112 in a compressed state. Between the metal ring 114 and the metal ring 114 to enhance the power supply to the shred wire 12.
  • the spring 113 Upon completion of the incision, the spring 113 is reset, thereby pushing the eyelet 114 to reset the shred 12, while the auxiliary solution can be sprayed through the second injection chamber 133 to the tissue being cut.
  • the second embodiment changes the restriction mechanism on the basis of the first embodiment.
  • the first restricting mechanism 41' and the second restricting mechanism 42' and the housing 30' do not correspond to the modified embodiment of the first restricting mechanism 41, the second restricting mechanism 42, and the housing 30 as described above.
  • the components other than the first restriction mechanism 41', the second restriction mechanism 42', the slide bracket 44, the opening 45, and the housing 30' are configured identically to the above-described tissue incision device, and are omitted here. instruction of.
  • the first restricting mechanism 41' is a threaded member
  • the second restricting mechanism 42' is a threaded member that cooperates with the first restricting mechanism 41'.
  • the first restricting mechanism 41' may be The externally threaded member
  • the second restricting mechanism 42' may be an internally threaded member.
  • the limiting mechanism further includes a sliding bracket 44 disposed inside the housing 30' and slidable therein in the axial direction.
  • the second limiting mechanism 42' is fixedly disposed on the sliding bracket 44.
  • the sliding bracket 44 is along the first limiting mechanism 41.
  • the axial direction has an opening 45
  • the first restricting mechanism 41' is disposed in the opening 45, whereby the movable range of the first restricting mechanism is limited to the range of the opening 45, and both sides of the opening 45 constitute Stop mechanism.
  • the first restricting mechanism 41' is fixedly coupled to the rigid body 50, and the second restricting mechanism 42' matching the first restricting mechanism 41' is fixed to the sliding bracket 44, and the sliding bracket 44 is disposed in the housing.
  • the sliding bracket 44 is provided with an opening 45 capable of accommodating the first restricting mechanism 41'.
  • the first restricting mechanism 41' is placed in the opening 45, and the distance from the two ends of the opening 45 is
  • the predetermined first limiting mechanism 41' is the product of the maximum number of revolutions and the pitch of the first limiting mechanism 41' thread to limit the rotation of the first restricting mechanism 41'.
  • the sum of the distance between the two ends of the first restricting mechanism 41' and the inner edge of the opening is the effective stroke of the second restricting mechanism 42', and the effective stroke length of the second restricting mechanism 42' is when the shred reaches the maximum number of revolutions in the same direction.
  • One limit is twice the limit of the mechanism 41'.
  • the rotation limit and the slitting operation constituted by the tissue incision device constructed as above will be explained here.
  • the cutting pole 14 approaches the band cutting tissue under the guidance of the guide wire, and the angle of the cutting electrode 14 is rotated by rotating the circumferential direction control mechanism 21.
  • the shred 12 is rotated by the circumferential control mechanism 21, and the rigid body 50 is fixedly coupled to the shred 12 to drive the first restricting mechanism 41' fixedly coupled to the rigid body 50 to rotate while the first restricting mechanism 41' is in the second limit.
  • the mechanism 42' is advanced or retracted in the axial direction, and does not advance when the edge of the opening 45 is reached, and the rotation is restricted.
  • the cutting wire 12 When cutting, the cutting wire 12 is energized to pull the axial control mechanism 22, and the cutting wire 12 is moved backward to complete the cutting.
  • the rigid body 50 fixedly connected thereto drives the entire sliding bracket 44 to slide in the casing 30', and the spring 113 compresses. The state abuts between the copper sleeve 112 and the eyelet 114 to enhance the power supply to the shred 12. After the slitting is completed, the spring 113 is reset, thereby pushing the eyelet 114 to reset the shred 12.
  • first restriction mechanism 41" and the second restriction mechanism 42" do not correspond to the modified embodiment of the first restriction mechanism 41 and the second restriction mechanism 42 as described above.
  • the first restricting mechanism 41" is a gear which is disposed on the rigid body 50 and disposed coaxially with the shred 12, and has a passage matching the shape of the rigid body 50 therein, such as the rigid body 50.
  • the cross-sectional shape of the largest diameter portion matches the slide to achieve circumferential locking and axial sliding of the rigid body 50 with the gear.
  • the second restricting mechanism 42" is a rack that is disposed in the housing and meshes with the gear of the first restricting mechanism 41", and the rack is disposed in the radial direction of the shred.
  • a blocking piece 62 is formed at both ends of the effective stroke of the rack, and the blocking piece 62 constitutes a stopping mechanism.
  • the number of teeth Z 1 of the rack between the blocking pieces 62 is 2n times the number of teeth Z 2 of the gear (n is the cutting wire 12 Maximum number of revolutions).
  • the gear In the initial state, the gear is disposed in the middle of the rack, and the gear is rotated by the cutter 12, so that the rack moves under the effective stroke under the driving of the gear, and when the shred 12 rotates clockwise or counterclockwise to the preset maximum rotation circle
  • the gear may be rotated by the rack to advance the rotation of the cutter, and the gear is disengaged from the rack when the cutter is rotated to the maximum number of turns.
  • the torque generated by the shred 12 between the large diameter portion 121 and the small diameter portion 122 in the range of the maximum number of revolutions is equal to or less than the breaking torque.
  • the flap 62 can be set to a vacant position, which will come out when the gear reaches the vacancy at the edge of the effective stroke of the rack, thereby limiting the stroke of the gear.
  • the other components of the present embodiment are the same as those of the tissue incision device of the first embodiment, and the description thereof is omitted here.
  • first restricting mechanism 41"' and the second restricting mechanism 42"' do not correspond to the modified embodiment of the first restricting mechanism 41 and the second restricting mechanism 42 as described above.
  • the first restricting mechanism 41"' is an externally threaded member disposed on the rigid body 50 coaxially with the shred 12.
  • the cross section of the largest diameter portion of the rigid body 50 is a flat circular shape on one side,
  • the threaded member has a passage matching the shape of the rigid body 50, such as a slide having a matching cross-sectional shape of the largest diameter portion of the rigid body 50, to achieve circumferential locking and axial direction of the rigid body 50 and the first restricting mechanism 41"' slide.
  • the second restricting mechanism 42"' is a limit wheel, which is also a female threaded member, is fixed to the housing, and has an internal thread that cooperates with the external thread of the externally threaded member.
  • the difference from the restricting mechanism in the first embodiment is In this embodiment, the second limiting mechanism is used to drive the first limiting mechanism to rotate forward; and in the first embodiment, the first limiting mechanism drives the second limiting mechanism to rotate forward.
  • the stroke of the internal thread of the internally threaded element is equal to twice the stroke of the externally threaded element 41"' to the maximum number of revolutions, and the end of the externally threaded element 41"' external thread is provided with a stop/protrusion, the stop/protrusion The stop mechanism.
  • the internally threaded member 42"' is located in the middle of the externally threaded member 41"' so that the shred 12 can be rotated clockwise or counterclockwise to a preset maximum number of revolutions (e.g., five turns) until the stop/protrusion is reached. Parked.
  • the torque generated by the shred 12 between the large diameter portion 121 and the small diameter portion 122 in the range of the maximum number of revolutions is equal to or less than the breaking torque.

Abstract

一种内镜用组织切开装置，包括：切割部，该切割部包括切丝（12）、与切丝（12）电性连接的导电机构（11）；操控部（20），该操控部（20）设置在切丝（12）近端用以控制切丝（12）旋转和进退；壳体（30），该壳体（30）的近端卡扣于操控部（20）的远端，并且壳体（30）内设置有至少两个腔体（31，32）以分别供切丝（12）通过和安置导电机构（11）；该内镜用组织切开装置还包括用于限制切丝（12）旋转圈数的限制机构。采用本装置，可以使得切丝（12）的最大旋转圈数受到限制，避免了由于过度旋转而导致的切丝（12）断裂。

Description

一种内镜用组织切开装置 技术领域
本发明涉及医疗器械领域，特别是一种内窥镜治疗用的介入式组织切开装置。
背景技术
十二指肠内镜下乳头括约肌切开术(以下简称EST)是在内镜下逆行性胆胰管造影术(以下简称ERCP)的治疗性技术基础上进一步发展起来的，是于内镜下利用高频电切开刀将十二指肠乳头括约肌及胆总管末端部分切开的一种治疗技术。EST是内镜领域中一项重要的治疗技术，亦是其他内镜治疗的前提。比如，胆管结石取出、胆管狭窄扩张、胆道支架内引流、胆管肿瘤活检及放射源置入内照射等诊疗技术，大多需要先进行EST，然后才能完成诸项内镜治疗。EST具有手术创伤小、术后恢复快、成功率高等优点，也正因此，EST的应用逐渐广泛。
高频切开刀是EST手术中必要的器械，现有的高频切开刀包括锥形尖端、多腔管、切丝、高频电极插头、导丝腔入口、手柄、尖端涂层；高频电极插头以机械卡扣的方式装入手柄中，多腔管近端与手柄采用在线注塑的方法连接；切丝尾端与高频电极插头相连接；导丝腔入口位于多腔管近端。通过旋转手柄来控制切丝的方向，以便于在内窥镜手术中的切割角度调整。为了兼顾操控强度与切割要求，切丝主体为大径部，在与组织接触的切割部位收拢为小径部。
在内窥镜手术过程中难免需要通过旋转切丝来调整切割角度，而切丝的过度旋转会导致其断裂，尤其是大径部和小径部所能承受扭力不同，大径部和小径部之间的结合部更容易发生断裂，从而导致切丝的损坏。
发明内容
本发明是鉴于上述情况作出的，发明目的在于提供一种结构设计合理、简单稳定，能够有效防止切丝因过度旋转而断裂的内镜用组织切开装置。
为达到上述目的，本发明提供一种内镜用组织切开装置，其包括：
切割部，所述切割部包括切丝、与所述切丝电性连接的导电机构；
操控部，所述操控部设置在所述切丝近端用以控制所述切丝旋转和进退；
壳体，所述壳体的近端卡扣于所述操控部的远端，并且所述壳体内设置有至少两个腔体以分别供所述切丝通过和安置所述导电机构；
其特征在于，所述内镜用组织切开装置还包括用于限制切丝旋转圈数的限制机构，所述限制机构包括：
刚体，所述刚体设于所述切丝的近端外周并与所述切丝同轴，所述刚体沿切丝径向的截面为非圆形状；
第一限制机构，所述第一限制机构设置在所述刚体外周并与所述刚体之间实现周向固定；
第二限制机构，所述第二限制机构与所述第一限制机构相匹配用以限制所述第一限制机构的旋转圈数。
优选地，所述限制机构还包括止动机构，所述止动机构设置在所述第一限制机构或所述第二限制机构的两端用于控制所述第一限制机构的行程范围。
优选地，所述第一限制机构内具有与所述刚体形状相匹配的通道使得所述第一限制结构可沿所述刚体的轴向滑动。
优选地，所述第一限制机构与所述刚体固定连接。
优选地，所述限制机构还包括滑动支架，所述滑动支架设于所述壳体内部并能沿所述切丝的轴向滑动，所述第二限制机构固定设置于所述滑动支架上，所述滑动支架沿所述第一限制机构的轴向上具有开孔，所述第一限制机构配置在所述开孔内。
优选地，所述第一限制机构为外螺纹元件，所述第二限制机构为与所述外螺纹元件相匹配的内螺纹元件。
优选地，所述第一限制机构为齿轮，所述第二限制机构包括与齿轮相配合的齿条。
优选地，所述操控部包括控制所述切丝旋转的周向控制机构和控制所述切丝进退的轴向控制机构，所述切丝与所述轴向控制机构固定连接，所述轴向控制机构滑动设置在所述周向控制机构上，且所述轴向控制机构与所述周向控制机构周向锁定，以使所述切丝在所述周向控制机构驱动下旋转。
优选地，所述刚体为导向管，其穿设于所述壳体内。
优选地，所述导电机构包括电极插头和与所述电极插头相配合的铜套，所述铜套套设于所述刚体外部以供所述刚体穿过。
优选地，所述切丝上、靠近所述第二限制机构的远端处套设有弹簧，所述弹簧的远端设置有金属圈，所述弹簧、切丝与所述金属圈之间电性连接。
优选地，所述周向控制机构为旋转手柄，所述轴向控制机构为滑动手柄。
采用本发明，由于设置了刚体，可以增强切丝的强度，并且非圆形状的刚体使得周向的扭矩能在第一限制机构和刚体之间传递，保证了手术效果；其次，由于设置了可以限制切丝旋转圈数的限制机构，使得切丝的最大旋转圈数受到限制，避免了由于过度旋转而导致的切丝断裂，而通过在限制机构两侧设置止动机构可以更进一步控制切丝的旋转；本发明中简化了操控部和导电机构，可以进一步提高装置的稳定性。
附图说明
图1为本发明实施例一的剖视图；
图2为本发明实施例一的切割部的切割极的结构示意图；
图3为本发明实施例一的多腔管的结构示意图；
图4为本发明实施例一的限制机构的结构示意图；
图5(a)、5(b)、5(c)为本发明实施例一的导向管的最大径部的横截面形状的示意图；
图6为本发明实施例一的限制机构一种变形例的剖视图；
图7为本发明实施例二的剖视图；
图8为本发明实施例二的限制机构的剖视图；
图9为本发明实施例三的部分剖视图；
图10为将本实施例三的限制机构沿图9的A-A线横截的截面示意图；
图11为本发明实施例四的部分剖视图；
图12为本发明实施例四的限制机构的剖视图。
标号说明：导电机构11、电极插头111、铜套112、弹簧113、金属圈114、切丝12、大径部121、小径部122、多腔管13、第二切丝腔131、第二导丝腔 132、第二注射腔133、切割极14、操控部20、周向控制机构21、轴向控制机构22、壳体(30、30’)、第一腔体31、第二腔体32、第三腔体33、第四腔体34、鲁尔接头35、外壳36、第一限制机构(41，41’，41”，41”’)、第二限制机构(42，42’，42”，42”’)、挡片(43、62)、滑动支架44、开孔45、刚体50、绝缘套管51。
具体实施方式
下面结合附图来详细说明本发明的具体实施方式，但本发明内容并不局限于这些实施方式。
实施例一
如图1、图2和图3所示，本发明的切开装置包括切割部，操控部20，壳体30；
切割部包括切丝12和与切丝12电性连接的导电机构11；
操控部20设置在切丝12的近端用以控制切丝的旋转和进退；
壳体30，壳体30的近端卡扣于操控部20的远端，并且壳体30内设置有至少两个腔体以分别供切丝12通过和安置导电机构11；
其中，本发明的切开装置还包括用于限制切丝旋转圈数的限制机构，限制机构包括：刚体50，第一限制机构41，第二限制机构42。
本发明中，近端指使用状态下，靠近操作者的一端，即靠近操控部的一端；远端指远离操作者的一端。
本发明中，切丝由可导电材料制得，比如金属等；导电机构11包括电极插头111和与电极插头111相配合的铜套112，电极插头111一端与外部高频电源连接，另一端与铜套112和切丝12处于可导电的连接状态。铜套112套设于刚体50外部，刚体50可以穿过铜套112。优选地，本发明中的刚体50为柱体，比如具有刚性的金属导向管。
进一步，操控部20包括控制切丝12旋转的周向控制机构21和控制切丝进退的轴向控制机构22，切丝12与轴向控制机构22固定连接，轴向控制机构22滑动设置在周向控制机构21上，且轴向控制机构22与周向控制机构21周向锁定，从而使得切丝可以在周向控制机构21的驱动下旋转。优选地，本发明中，周向控制机构21为旋转手柄，轴向控制机构22为滑动手柄，滑动手柄可滑动 地套设在轴向中空的旋转手柄上，且与旋转手柄周向锁定；切丝12的近端与滑动手柄固定连接，由于滑动手柄与旋转手柄周向锁定，因此旋转手柄旋转时可带动切丝12旋转。
优选地，为了保证操作安全性，可以在铜套112靠近周向控制机构21一侧的刚体50上设置绝缘套管51。
下面分别说明一下本发明的壳体30和限制机构。
<壳体>
本发明中，壳体30可以为一内衬组合架，其近端卡扣于操控部20的远端，具体来说，周向控制机构21的远端与壳体30的近端轴向锁定，两者通过“卡扣”形式连接以使周向控制机构21能相对于壳体30沿周向旋转。
壳体30内设置有至少两个腔体，其中一个腔体供切丝12通过，另一腔体供安置导电机构11。具体地，如图1和图3所示，在本发明中，壳体30内设置有第一切丝腔31、第一导丝腔32、第一注射腔33、电极腔34，切丝12穿设于第一切丝腔31内。电极腔34与第一切丝腔31相通，其内设置有电极插头111和铜套112。壳体30的远端进一步罩设有外壳36，外壳36的远端设置有一鲁尔接头35，鲁尔接头35与多腔管13相连，多腔管13内具有第二切丝腔131、第二导丝腔132、第二注射腔133，切丝12、导丝、注射液分别从上述切丝腔、导丝腔、注射腔内进入组织内部。第二切丝腔131在远离外壳36的末端处设置有开口，切丝12的直径在接近开口处变小，由大径部121渐变为小径部122，切丝12的小径部122与多腔管13构“弓”形的切割极14(如图2所示)。
<限制机构>
以下将结合图1和图4说本实施例中限制机构的布置及工作原理。
限制机构包括：
刚体50，刚体50设于切丝12的近端外周并与切丝12同轴，并且刚体50沿切丝径向的截面为非圆形状，这样可以提高切丝12的扭矩；
第一限制机构41，第一限制机构41设置在刚体50外并与刚体50周向锁定，即第一限制机构41与刚体50之间不发生周向转动，刚体50的旋转可以带动第一限制机构41的旋转；
第二限制机构42，第二限制机构42与第一限制机构41相匹配用以限制第一限制机构41的旋转圈数，其中，第一限制机构41与第二限制机构42均位于壳体31内。
刚体50最大径部的横截面为一侧带扁的圆形，第一限制机构41设于刚体50外周与切丝12同轴，第一限制机构41内具有与刚体50的形状相匹配的通道，比如与刚体50最大径部的横截面形状相匹配的滑道，以实现刚体50与第一限制机构41的周向锁定、轴向滑动。优选地，在本实施例的限制机构中，第一限制机构41为外螺纹元件，比如，螺杆等；第二限制机构42设置在第一限制机构41外周并与第一限制机构41螺纹配合，其可以为内螺纹元件，比如螺母等。本实施例中，第一限制机构与第二限制机构同轴设置，第二限制机构42的轴向长度大于第一限制机构41的轴向长度，第二限制机构42沿切丝的进退方向、即沿轴向方向配置在壳体30中，第一限制机构和第二限制机构的行进方向与切丝的轴向平行。优选地，第二限制机构的有效行程长度为切丝达到同向最大旋转圈数时第一限制机构行程的两倍。
尽管刚体50最大径部的横截面形状在本实施例中是一侧带扁的圆形，但并没有限定其形状，只要能够周向传递转矩即可，如图5(a)、(b)、(c)所示的不规则多边形、带凸起的圆、键连接等。另外，因切丝12过于纤细不便于旋转操作，为了增强驱动效果，刚体50可以延伸至切丝12靠近周向控制机构21段，刚体50沿切丝12轴向穿过周向控制机构21并与轴向控制机构22固定连接，切丝12与刚体50固定连接。
本实施例中，第二限制机构42的近端与铜套112相抵接，在第二限制机构42远端设置有金属挡片43，挡片43和铜套112之间的距离为第一限制机构41的最大行程。初始状态下，第一限制机构41设置在第二限制机构42的中部，其与挡片43或者铜套112与第二限制机构42交界处的距离为预设的切丝12最大旋转圈数和第二限制机构42螺纹的螺距之积，从而切丝12可顺时针或者逆时针旋转到预设最大旋转圈数(如五圈)直至抵达挡片43或者铜套112与第二限制机构42交界处停驻。其中最大旋转圈数范围内在切丝12的大径部121和小径部122之间所产生的扭矩小于其断裂扭矩。
在第一切丝腔31的远端设置有弹簧113，弹簧113套设在切丝12上，弹簧113远端固定设置有金属圈114，弹簧近端与铜套112电性连接，这样，电极插头111、铜套112、弹簧113、金属圈114与切丝12一直处于电性连接状态。
尽管第一限制机构41、第二限制机构42在本实施例中是周向完整的结构，但并没有限定其形状，也可以为如图6所示的样子，只要在第一限制机构41旋转过程中均有第二限制机构42与之配合足以限制第一限制机构41在轴向上的进退即可。
优选地，限制机构还包括止动机构，止动机构可以设置在第一限制机构或第二限制机构的两端用于控制第一限制机构的行程范围。在本实施例中，止动机构由挡片43和铜套112构成，挡片43和铜套112在第二限制机构42两端阻止了第一限制机构41的行进，但本发明的止动机构并没有因此受到限定，其也可以是设置在第二限制机构42路径上预设位置的两个阻挡块。
通过如上构造的组织切开装置所构成的旋转限位和切开操作将在此处进行说明。内窥镜手术中，切割极14在导丝的引导下接近带切割组织，通过旋转周向控制机构21来旋转调节切割极14的角度。切丝12在周向控制机构21的带动下旋转，刚体50与切丝12固定连接，从而带动与刚体50周向锁定的第一限制机构41旋转，同时第一限制机构41在第二限制机构42的配合下沿轴向前进或者后退，当达到挡片43时不再前进，旋转动作被限制。切开时，向切丝12通电并拉动轴向控制机构22，使切丝12向后移动完成切割，与之固定连接的刚体50在滑道内滑动，弹簧113以压缩状态抵接在铜套112和金属圈114之间以增强向切丝12的供电能力。切开完成后，弹簧113复位，从而推动金属圈114以使切丝12复位，同时可通过第二注射腔133向组织被切开部喷洒辅助药液。
实施例二
实施例二在实施例一的基础上对限制机构做了变化。本实施例中，第一限制机构41’和第二限制机构42’、壳体30’别对应如前所述的第一限制机构41、第二限制机构42、壳体30修改的实施例。除了第一限制机构41’、第二限制机构42’、滑动支架44、开孔45和壳体30’之外的其它构成部分与上述的组织切开装置构成相同，并在此处省略对其的说明。
如图7、8所示，第一限制机构41’为螺纹元件，第二限制机构42’为与第一限制机构41’相配合的螺纹元件，可选地，第一限制机构41’可以为外螺纹元件，第二限制机构42’可以为内螺纹元件。限制机构还包括滑动支架44，滑动支架44设于壳体30’内部并能在其中沿轴向滑动，第二限制机构42’固定设置于滑动支架44上，滑动支架44沿第一限制机构41’的轴向上具有开孔45，第一限制机构41’配置在开孔45内，由此第一限制机构的活动范围被限制在开孔45的范围内，开孔45的两侧构成了止动机构。
在本实施例2中，第一限制机构41’与刚体50固定连接，与第一限制机构41’相匹配的第二限制机构42’固设在滑动支架44上，滑动支架44设置在壳体 30’的滑道内，滑动支架44上开设有能够容纳第一限制机构41’的开孔45，初始状态下第一限制机构41’置于开孔45中，且与开孔45两端的距离为预设的第一限制机构41’最大旋转圈数和第一限制机构41’螺纹的螺距之积，以限制第一限制机构41’的旋转。第一限制机构41’两端与开孔内边缘的距离之和为第二限制机构42’的有效行程，第二限制机构42’的有效行程长度为切丝达到同向最大旋转圈数时第一限制机构41’行程的两倍。
通过如上构造的组织切开装置所构成的旋转限位和切开操作将在此处进行说明。内窥镜手术中，切割极14在导丝的引导下接近带切割组织，通过旋转周向控制机构21来旋转调节切割极14的角度。切丝12在周向控制机构21的带动下旋转，刚体50与切丝12固定连接，从而带动与刚体50固定连接的第一限制机构41’旋转，同时第一限制机构41’在第二限制机构42’的配合下沿轴向前进或者后退，当达到开孔45边缘时不再前进，旋转动作被限制。切开时，向切丝12通电拉动轴向控制机构22，使切丝12向后移动完成切割，与之固定连接的刚体50带动整个滑动支架44在壳体30’内滑动，弹簧113以压缩状态抵接在铜套112和金属圈114之间以增强向切丝12的供电能力。切开完成后，弹簧113复位，从而推动金属圈114以使切丝12复位。
实施例三
本实施例中，第一限制机构41”和第二限制机构42”别对应如前所述的第一限制机构41、第二限制机构42修改的实施例。
如图9、10所示，第一限制机构41”为一齿轮，该齿轮设置在刚体50上并与切丝12同轴配置，其内具有与刚体50的形状相匹配的通道，比如刚体50的最大径部的横截面形状相匹配的滑道，以实现刚体50与齿轮的周向锁定和轴向滑动。
第二限制机构42”为设置在壳体内的与第一限制机构41”的齿轮相啮合的齿条，齿条沿切丝的径向配置。在齿条有效行程的两端设置有挡片62，该挡片62构成止动机构，挡片62之间齿条的齿数Z1为齿轮的齿数Z2的2n倍(n为切丝12的最大旋转圈数)。初始状态下，齿轮设置在齿条的中间，由切丝12驱动齿轮旋转，进而齿条在齿轮的驱动下于有效行程内移动，当切丝12顺时针或者逆时针旋转到预设最大旋转圈数(如五圈)时抵达有效行程边缘的挡片62处停驻。可选地，也可以由齿条带动齿轮旋转前进从而驱动切丝旋转，当切丝旋转 到最大圈数时齿轮从齿条内脱出。其中最大旋转圈数范围内切丝12在大径部121和小径部122之间所产生的扭矩在断裂扭矩以下。
应予说明，挡片62可以设置为空位，当齿轮抵达齿条有效行程边缘的空位时会脱出从而对齿轮的行程起了限制作用。
本实施例的其它构成部分与实施例一的组织切开装置构成相同，在此处省略对其的说明。
实施例四
本实施例中，第一限制机构41”’和第二限制机构42”’别对应如前所述的第一限制机构41、第二限制机构42修改的实施例。
如图11、12所示，第一限制机构41”’为设置在刚体50上与切丝12同轴的外螺纹元件。刚体50最大径部的横截面为一侧带扁的圆形，外螺纹元件内具有与刚体50的形状相匹配的通道，比如刚体50的最大径部的横截面形状相匹配的滑道，以实现刚体50与第一限制机构41”’的周向锁定、轴向滑动。
第二限制机构42”’为限位轮，其也为内螺纹元件，固定在壳体上，具有与外螺纹元件的外螺纹相配合的内螺纹。与实施例一中的限制机构不同的是，本实施例中，是由第二限制机构限位轮带动第一限制机构旋转前进；而实施例一中，是由第一限制机构带动第二限制机构旋转前进。
内螺纹元件的内螺纹的行程等于外螺纹元件41”’达到最大旋转圈数时行程的两倍，在外螺纹元件41”’外螺纹的远端设置有挡块/突起，该挡块/突起构成了止动机构。初始状态下，内螺纹元件42”’位于外螺纹元件41”’的中部，从而切丝12可顺时针或者逆时针旋转到预设最大旋转圈数(如五圈)直至抵达挡块/突起而停驻。其中最大旋转圈数范围内切丝12在大径部121和小径部122之间所产生的扭矩在断裂扭矩以下。
此外，需要说明的是，本说明书中所描述的具体实施例，其零、部件的形状、所取名称等可以不同。凡依本发明专利构思所述的构造、特征及原理所做的等效或简单变化，均包括于本发明专利的保护范围内。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，只要不偏离本发明的结构或者超越本权利要求书所定义的范围，均应属于本发明的保护范围。

Claims (12)

  1. 一种内镜用组织切开装置，包括：
    切割部，所述切割部包括切丝、与所述切丝电性连接的导电机构；
    操控部，所述操控部设置在所述切丝近端用以控制所述切丝旋转和进退；
    壳体，所述壳体的近端卡扣于所述操控部的远端，并且所述壳体内设置有至少两个腔体以分别供所述切丝通过和安置所述导电机构；
    其特征在于，所述内镜用组织切开装置还包括用于限制切丝旋转圈数的限制机构，所述限制机构包括：
    刚体，所述刚体设于所述切丝的近端外周并与所述切丝同轴，所述刚体沿切丝径向的截面为非圆形状；
    第一限制机构，所述第一限制机构设置在所述刚体外周并与所述刚体之间实现周向固定；
    第二限制机构，所述第二限制机构与所述第一限制机构相匹配用以限制所述第一限制机构的旋转圈数。
  2. 根据权利要求1所述的内镜用组织切开装置，其中，所述限制机构还包括止动机构，所述止动机构设置在所述第一限制机构或所述第二限制机构的两端用于控制所述第一限制机构的行程范围。
  3. 根据权利要求1所述的内镜用组织切开装置，其中，所述第一限制机构内具有与所述刚体形状相匹配的通道使得所述第一限制结构可沿所述刚体的轴向滑动。
  4. 根据权利要求1所述的内镜用组织切开装置，其中，所述第一限制机构与所述刚体固定连接。
  5. 根据权利要求1所述的内镜用组织切开装置，其中，所述限制机构还包括滑动支架，所述滑动支架设于所述壳体内部并能沿所述切丝的轴向滑动，所述第二限制机构固定设置于所述滑动支架上，所述滑动支架沿所述第一限制机构的轴向上具有开孔，所述第一限制机构配置在所述开孔内。
  6. 根据权利要求1所述的内镜用组织切开装置，其中，所述第一限制机构为外螺纹元件，所述第二限制机构为与所述外螺纹元件相匹配的内螺纹元件。
  7. 根据权利要求1所述的内镜用组织切开装置，其中，所述第一限制机构为齿轮，所述第二限制机构包括与齿轮相配合的齿条。
  8. 根据权利要求1至7中任意一项所述的内镜用组织切开装置，其特征在于： 所述操控部包括控制所述切丝旋转的周向控制机构和控制所述切丝进退的轴向控制机构，所述切丝与所述轴向控制机构固定连接，所述轴向控制机构滑动设置在所述周向控制机构上，且所述轴向控制机构与所述周向控制机构周向锁定，以使所述切丝在所述周向控制机构驱动下旋转。
  9. 根据权利要求1至7中任意一项所述的内镜用组织切开装置，其特征在于：所述刚体为导向管，其穿设于所述壳体内。
  10. 根据权利要求1至7中任意一项所述的内镜用组织切开装置，其特征在于：所述导电机构包括电极插头和与所述电极插头相配合的铜套，所述铜套套设于所述刚体外部以供所述刚体穿过。
  11. 根据权利要求1至7中任意一项所述的内镜用组织切开装置，其特征在于：所述切丝上、靠近所述第二限制机构的远端处套设有弹簧，所述弹簧的远端设置有金属圈，所述弹簧、切丝与所述金属圈之间电性连接。
  12. 根据权利要求8所述的内镜用组织切开装置，其特征在于：所述周向控制机构为旋转手柄，所述轴向控制机构为滑动手柄。
PCT/CN2016/097865 2016-09-02 2016-09-02 一种内镜用组织切开装置 WO2018040061A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/097865 WO2018040061A1 (zh) 2016-09-02 2016-09-02 一种内镜用组织切开装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/097865 WO2018040061A1 (zh) 2016-09-02 2016-09-02 一种内镜用组织切开装置

Publications (1)

Publication Number Publication Date
WO2018040061A1 true WO2018040061A1 (zh) 2018-03-08

Family

ID=61299876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/097865 WO2018040061A1 (zh) 2016-09-02 2016-09-02 一种内镜用组织切开装置

Country Status (1)

Country Link
WO (1) WO2018040061A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108814711A (zh) * 2018-08-14 2018-11-16 浙江创想医学科技有限公司 一种新型黏膜切开刀
CN108852505A (zh) * 2018-09-12 2018-11-23 无锡圣诺亚科技有限公司 腔内目标组织切割器
CN109620397A (zh) * 2019-01-31 2019-04-16 郑州大学第附属医院 一种腹腔镜下精细胆道切开装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5843091A (en) * 1995-05-12 1998-12-01 Ballard Medical Products Extension regulator for catheter carried medical instruments
US20030036768A1 (en) * 2001-08-14 2003-02-20 Hutchins John E. Method of and apparatus for positioning and maintaining the position of endoscopic instruments
CN1911185A (zh) * 2005-08-12 2007-02-14 富士能株式会社 高频处置工具
CN1957836A (zh) * 2005-11-02 2007-05-09 奥林巴斯医疗株式会社 内窥镜系统、内窥镜用操作辅助装置
CN101301221A (zh) * 2007-05-07 2008-11-12 奥林巴斯医疗株式会社 内窥镜用处理器具
CN101652104A (zh) * 2007-04-20 2010-02-17 奥林巴斯医疗株式会社 处置器械和具有处置器械的内窥镜处置系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5843091A (en) * 1995-05-12 1998-12-01 Ballard Medical Products Extension regulator for catheter carried medical instruments
US20030036768A1 (en) * 2001-08-14 2003-02-20 Hutchins John E. Method of and apparatus for positioning and maintaining the position of endoscopic instruments
CN1911185A (zh) * 2005-08-12 2007-02-14 富士能株式会社 高频处置工具
CN1957836A (zh) * 2005-11-02 2007-05-09 奥林巴斯医疗株式会社 内窥镜系统、内窥镜用操作辅助装置
CN101652104A (zh) * 2007-04-20 2010-02-17 奥林巴斯医疗株式会社 处置器械和具有处置器械的内窥镜处置系统
CN101301221A (zh) * 2007-05-07 2008-11-12 奥林巴斯医疗株式会社 内窥镜用处理器具

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108814711A (zh) * 2018-08-14 2018-11-16 浙江创想医学科技有限公司 一种新型黏膜切开刀
CN108852505A (zh) * 2018-09-12 2018-11-23 无锡圣诺亚科技有限公司 腔内目标组织切割器
CN109620397A (zh) * 2019-01-31 2019-04-16 郑州大学第附属医院 一种腹腔镜下精细胆道切开装置

Similar Documents

Publication Publication Date Title
US20230110289A1 (en) Endoscopic Ultrasound Fine Needle Aspiration Device
US9375252B2 (en) Adjustable length and/or exposure electrodes
EP1816970B1 (de) Vorrichtung zur resektion und/oder ablation von organischem gewebe mittels hochfrequenzstrom
EP2617372B1 (en) Material removal device
WO2018040061A1 (zh) 一种内镜用组织切开装置
CN206473393U (zh) 一种内镜用组织切开装置
US20090299352A1 (en) Steerable laser-energy delivery device
US8801708B2 (en) Endoscopic-use treatment instrument
JP2017526477A5 (zh)
US11602390B2 (en) Electrosurgical apparatus with flexible shaft
JP2010532211A5 (zh)
JP5948493B2 (ja) 高周波処置具
JP7184807B2 (ja) 伸縮可能シャフト用ロック機構
US20120059219A1 (en) Bipolar resection device having simplified rotational control and better visualization
KR20200049258A (ko) 복수개의 처치구 병용이 가능한 병변조직 제거용 의료용 스네어
WO2017134752A1 (ja) 内視鏡処置具
US11039876B2 (en) Hand-held instrument with extendable shaft locking mechanism
CN108523986A (zh) 一种内窥镜用带注射针的高频刀具
CN209032622U (zh) 一种内窥镜用带注射针的高频刀具
JP4616210B2 (ja) 高周波処置具
KR101493766B1 (ko) 카테터가 구비된 고주파 소작장치
JP2011083303A (ja) 内視鏡用高周波処置具
CN117481784A (zh) 内镜用切开装置及内镜

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16914627

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16914627

Country of ref document: EP

Kind code of ref document: A1