阅读说明：本技术 内窥镜及扩展支架 (Endoscope and expansion support ) 是由 时百明 李鹏 于 2018-01-04 设计创作，主要内容包括：本发明涉及提供一种内窥镜及扩展支架,其中内窥镜包括:内窥镜的外表面设有第一导电部,所述第一导电部用于与人体接触,内窥镜设有器械通道,所述器械通道用于供内窥镜用处理装置穿设其中。结构设计合理、切割速度较快、被动电极灼伤风险较低并具有通配性。(The invention relates to an endoscope and an expansion bracket, wherein the endoscope comprises a first conductive part arranged on the outer surface of the endoscope, the first conductive part is used for contacting with a human body, the endoscope is provided with an instrument channel, and the instrument channel is used for a processing device for the endoscope to penetrate through. Reasonable structural design, high cutting speed, low burn risk of the passive electrode and universal matching property.)

1. An endoscope, comprising:

the outer surface of the endoscope is provided with a first conductive part which is used for contacting with a human body, and the endoscope is provided with an instrument channel which is used for the processing device for the endoscope to penetrate through.

2. The endoscope of claim 1, wherein the endoscope is provided with a fourth conductive portion, the first conductive portion and the fourth conductive portion being electrically connected.

3. The endoscope of claim 1, further comprising an extension holder, wherein the extension holder is attached to an outside of the endoscope, and the first conductive portion is provided on an outer periphery of the extension holder.

4. The endoscope according to claim 2, wherein the fourth conductive portion is a wire, and the fourth conductive portion is inserted into the endoscope or is provided outside the endoscope.

5. An endoscope according to claim 2 or 4, wherein said endoscope is provided with a connecting through hole, and wherein a conductive material is provided in said connecting through hole to electrically connect said first conductive portion and said fourth conductive portion.

6. An endoscope according to claim 2 or 4, wherein an end face of the distal end of the endoscope is provided with an electrically conductive material for electrically connecting said first electrically conductive portion and said fourth electrically conductive portion.

7. An extension holder, characterized in that the extension holder is configured to be attached to the outside of an endoscope, and the extension holder is provided with a first conductive section configured to be in contact with a human body, and a fourth conductive section electrically connected to the first conductive section, and the fourth conductive section is configured to be electrically connected to a supply electrode.

8. The extension bracket according to claim 7, wherein the fourth conductive portion is a wire for passing through an endoscope or being provided outside the endoscope.

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to an endoscope and an expansion bracket.

Background

Conventionally, there is known a bipolar treatment instrument for an endoscope that performs a treatment on a living tissue or the like by penetrating the endoscope. Some of such bipolar treatment instruments for endoscopes have a function of supplying a high-frequency current to the treatment instrument for performing a treatment such as incision, cauterization, or hemostasis on a living tissue.

As an example of such an endoscopic treatment instrument, patent document CN102413786B discloses a high-frequency incision instrument for incising a living tissue by using a polyp excision snare to which a high-frequency current is applied. A current loop is formed by conducting an electric wire, a passive electrode arranged on the outer periphery of the extension portion, a living tissue in contact with the passive electrode, a polypectomy snare, and a control wire to the supply electrode, thereby completing a polypectomy operation. Patent CN205697995U discloses a bipolar incision knife, which comprises a control part, an insulating sheath, and a cutting part; the far end of the control part is connected with the near end of the insulating sheath tube, and the cutting part comprises a cutting electrode, a passive electrode, a cutting electrode terminal capable of being communicated with the cutting electrode, a passive electrode terminal capable of being communicated with the passive electrode, a cutting electrode conductor connecting the cutting electrode and the cutting electrode terminal, and a passive electrode conductor connecting the passive electrode and the passive electrode terminal; the cutting electrode and the driven electrode are arranged at the far end of the insulating sheath tube and are respectively connected with the control part through a cutting electrode conductor and a driven electrode conductor.

However, the above solutions all have the following improvements: the heat effect of the first active electrode (namely the high-frequency processing part and the cutting part) is not obvious, and the cutting speed is slow, so that the clinical application is not wide; secondly, the contact area of the passive electrode and the tissue is small, and the risk of undesirable tissue burning exists; thirdly, the passive electrode and the active electrode are relatively close to each other, so that the risk of short circuit failure caused by mutual contact of the two electrodes or by the fact that current flows through interstitial fluid between the two electrodes exists; fourthly, in the surgical instruments for endoscopes, there are treatment instruments such as electrocoagulation forceps, biopsy forceps, needle-like knives, etc. which need to be electrified to perform the operations of incision, cauterization, hemostasis, etc. in addition to the snare and the papillary incision knife, and the general compatibility of the passive electrode in the above technical scheme is low.

Disclosure of Invention

Based on the above, the invention provides the treatment device for the endoscope, the endoscope and the expansion bracket, which overcome the defects of the prior art, have reasonable structural design, high cutting speed, low passive electrode burning risk and universal matching property.

The technical scheme is as follows:

a treatment device for an endoscope, comprising: a first electrode comprising an electrical treatment section and a steering wire; the second electrode is used for being installed on an endoscope and comprises a first conductive part and a sliding contact part electrically connected with the first conductive part, and the first conductive part is used for being in contact with a human body; the surface of the sheath pipe is provided with a second conductive part; when the sheath tube is located at a preset position, the sliding contact part is in contact with and electrically connected with the second conductive part, and the sheath tube is in sliding fit with the sliding contact part.

In one embodiment, the endoscope further comprises an expansion bracket, the expansion bracket is used for being sleeved outside the endoscope, and the first conductive part is arranged on the periphery of the expansion bracket.

In one embodiment, the expansion bracket comprises a sleeve and a transparent cover connected with the sleeve, the sleeve is used for being sleeved outside the endoscope, the transparent cover is transparent or semitransparent, and the transparent cover is used for enabling the endoscope to obtain images.

In one embodiment, the expansion bracket comprises a sleeve and a flexible part or an elastic part connected with the sleeve, the sleeve is used for being sleeved outside the endoscope, and the sliding contact part is fixed on the inner side of the expansion bracket.

In one embodiment, the outer surface of the sheath is provided with a layer of conductive material, and the conductive material forms the second conductive part.

In one embodiment, the sheath is provided with a first cavity and a second cavity, the steering wire is arranged in the first cavity in a penetrating mode, a third conducting portion is arranged in the second cavity, and the third conducting portion is electrically connected with the second conducting portion.

In one embodiment, the second conductive portion surrounds the sheath around the circumference of the sheath.

In one embodiment, the wiping portion includes a fifth conductive portion electrically connected to the first conductive portion and a sixth conductive portion electrically connected to the sixth conductive portion.

A treatment device for an endoscope, comprising: a first electrode comprising an electrical treatment section and a steering wire; the sheath tube, the external surface of said sheath tube has the second conductive part, the said second conductive part is used for connecting electrically with the first conductive part on the endoscope; the sheath pipe is provided with a first cavity and a second cavity, the control wire penetrates through the first cavity, a third conducting part is arranged in the second cavity, and the third conducting part is electrically connected with the second conducting part.

In one embodiment, the outer surface of the sheath is provided with a layer of conductive material, and the conductive material forms the second conductive part.

In one embodiment, the sheath is provided with a first cavity and a second cavity, the steering wire is arranged in the first cavity in a penetrating mode, a third conducting portion is arranged in the second cavity, and the third conducting portion is electrically connected with the second conducting portion.

In one embodiment, the second conductive portion surrounds the sheath around the circumference of the sheath.

An expansion stent comprising: the expandable stent is configured to be attached to an endoscope, and has an outer peripheral surface with a diameter larger than that of the endoscope, and a first conductive portion provided on an outer periphery of the expandable stent and a sliding contact portion electrically connected to the first conductive portion, the sliding contact portion being electrically connected to a second conductive portion of the treatment device for an endoscope.

In one embodiment, the expansion bracket comprises a sleeve and a transparent cover connected with the sleeve, the sleeve is used for being sleeved outside the endoscope, the transparent cover is transparent or semitransparent, and the transparent cover is used for enabling the endoscope to obtain images.

In one embodiment, the expansion bracket comprises a sleeve and a flexible part or an elastic part connected with the sleeve, the sleeve is used for being sleeved outside the endoscope, and the sliding contact part is fixed on the inner side of the expansion bracket.

An endoscope, comprising: the outer surface of the endoscope is provided with a first conductive part which is used for contacting with a human body, and the endoscope is provided with an instrument channel which is used for the processing device for the endoscope to penetrate through.

In one embodiment, the endoscope further comprises an expansion bracket, the expansion bracket is arranged outside the endoscope, and the first conductive part is arranged on the periphery of the expansion bracket.

In one embodiment, the fourth conductive portion is a wire, and the fourth conductive portion is inserted into the endoscope or disposed outside the endoscope.

In one embodiment, the endoscope is provided with a connecting through hole, and a conductive material is arranged in the connecting through hole to electrically connect the first conductive part and the fourth conductive part.

In one embodiment, the end face of the distal end of the endoscope is provided with a conductive material to electrically connect the first conductive portion and the fourth conductive portion.

An extension holder is used for being mounted outside an endoscope, and is provided with a first conductive part and a fourth conductive part electrically connected with the first conductive part, wherein the first conductive part is used for being in contact with a human body, and the fourth conductive part is used for being electrically connected with a supply electrode.

In one embodiment, the fourth conductive portion is a wire, and the fourth conductive portion is configured to be inserted into the endoscope or disposed outside the endoscope.

The invention has the beneficial effects that:

the first electrode electrically operates the human body, and the current entering the human body is not passed through the whole human body by the second conductive part loop any more, so that other organs of the human body or an electronic device (such as a pacemaker) are prevented from being injured, and the whole operation is safe. As long as the electrical requirements can be met, the second electrode can be arranged at any position of the endoscope, so that the contact area of the second conductive part and the human body is large enough, and the current is fully led out. The space of contact has increased the conducting area of the contact segment who derives the electric current from human tissue in the return path through make full use of endoscope mirror body outside and tissue contact, when reducing the risk of burning, has further improved the fuel factor, has improved endoscopic surgery's security and operating efficiency, provides the guarantee for further clinical popularization and the application of processing apparatus for the endoscope.

Drawings

FIG. 1A is a schematic view showing a treatment apparatus for an endoscope and an endoscope in accordance with an embodiment of the present invention;

FIG. 1B is a schematic view showing a treatment apparatus for an endoscope and an endoscope in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view showing an extended stent attached to a treatment device for an endoscope according to an embodiment of the present invention;

FIG. 3 is an end view of FIG. 2;

FIG. 4 is a diagram of several configurations of a second electrical conductor in accordance with an embodiment of the present invention;

FIGS. 5A-C are schematic views of alternative embodiments of an expandable stent according to embodiments of the present invention;

FIGS. 6A to C are schematic views showing a treatment apparatus for an endoscope and an endoscope in accordance with a second embodiment of the present invention;

FIGS. 7 to 13 are schematic views of other embodiments of the present invention;

FIG. 14 is a schematic view of another embodiment of the present invention;

FIG. 15 is an enlarged view of A in FIG. 14;

FIG. 16 is a schematic view of another embodiment of the present invention;

FIG. 17 is an enlarged view of B in FIG. 16;

FIG. 18 is a schematic view of another embodiment of the present invention;

FIG. 19 is an enlarged view of C in FIG. 18;

FIG. 18 is a schematic view of another embodiment of the present invention;

FIG. 19 is an enlarged view of C in FIG. 18;

FIG. 20 is a schematic view of another embodiment of the present invention;

FIG. 21 is an enlarged view of E in FIG. 20;

FIG. 22 is a schematic view of a third embodiment of the present invention;

FIG. 23 is an enlarged view of a portion of FIG. 22;

FIG. 24 is a schematic view of another embodiment of the present invention;

FIG. 25 is a partial cross-sectional view of FIG. 24;

fig. 26 is an overall structural view of the embodiment of fig. 24.

Description of reference numerals:

sheath 10, first lumen 11, second lumen 12, steering wire 20, cutting section 21, ESD incision knife 222, snare 221, electrocoagulation forceps 223, biopsy forceps 224, papillary incision knife 225, conductor lumen 2251, cutting wire 2252, anchor point 2253, drive section 30, sliding finger ring 31, scope 401, instrument channel 403, transparent cover 41, extension bracket 42, return path 50, first conductive section 51, second conductive section 52, sliding contact section 53, third conductive section 54, fourth conductive section 55, supply electrode 60, passive electrode 61, active electrode 62.

Detailed Description

The present invention will be described in further detail below, but the embodiments of the present invention are not limited thereto.