JP4731256B2 - Endoscope treatment tool fixing mechanism - Google Patents

Endoscope treatment tool fixing mechanism Download PDF

Info

Publication number
JP4731256B2
JP4731256B2 JP2005268110A JP2005268110A JP4731256B2 JP 4731256 B2 JP4731256 B2 JP 4731256B2 JP 2005268110 A JP2005268110 A JP 2005268110A JP 2005268110 A JP2005268110 A JP 2005268110A JP 4731256 B2 JP4731256 B2 JP 4731256B2
Authority
JP
Japan
Prior art keywords
treatment instrument
treatment
treatment tool
brake member
side surface
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
JP2005268110A
Other languages
Japanese (ja)
Other versions
JP2007075405A (en
Inventor
吉延 沼澤
Original Assignee
Hoya株式会社
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 Hoya株式会社 filed Critical Hoya株式会社
Priority to JP2005268110A priority Critical patent/JP4731256B2/en
Publication of JP2007075405A publication Critical patent/JP2007075405A/en
Application granted granted Critical
Publication of JP4731256B2 publication Critical patent/JP4731256B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131Accessories for endoscopes
    • A61B1/00137End pieces, e.g. caps, seals, forceps plugs

Description

  The present invention relates to an endoscope treatment tool fixing mechanism for fixing a treatment tool passed through a treatment tool insertion channel of an endoscope as necessary.

  Various treatment tools used for endoscopes are usually used by being inserted and retracted from the distal end of the insertion portion of the endoscope through the treatment tool insertion channel of the endoscope. In some cases, depending on the surgical technique or the like, it may be desirable to fix the state in which the distal end of the treatment tool protrudes from the distal end of the insertion portion of the endoscope by a desired length.

Therefore, conventionally, an auxiliary tool capable of fixing / releasing the sheath of the treatment tool is incorporated in the proximal side portion of the treatment tool, and such an auxiliary tool is attached to the treatment tool insertion base of the treatment tool insertion channel of the endoscope. By locking, the treatment instrument can be fixed to the treatment instrument insertion channel (for example, Patent Document 1).
JP-A-9-103433

  However, in the conventional endoscope treatment instrument fixing mechanism as described above, only the treatment instrument in which the auxiliary instrument is incorporated in advance can be fixed to the treatment instrument insertion channel, and can be fixed. Since the sexual treatment instrument needs to incorporate an auxiliary instrument in all, it has become very expensive.

  In addition, when using a conventional endoscope treatment tool fixing mechanism, it is necessary to remove the forceps plug from the treatment tool insertion base. Is complicated, and the body sewage or the like is ejected through the treatment instrument insertion channel.

  Therefore, according to the present invention, a general treatment instrument can be easily fixed / released with respect to the treatment instrument insertion channel with a low-cost configuration without providing any additional configuration for each treatment instrument. It is an object of the present invention to provide a treatment instrument fixing mechanism for an endoscope that can be used without attaching or removing a forceps plug even in this case.

  In order to achieve the above object, the endoscope treatment instrument fixing mechanism of the present invention is cut into the side wall portion of the treatment instrument passage conduit formed in the treatment instrument insertion cap at the entrance of the endoscope treatment instrument insertion channel. A brake member that forms a notch hole and abuts against a side surface of the treatment instrument that passes through the treatment instrument passage conduit is disposed in the notch hole so as to be movable in a direction perpendicular to the axis of the treatment instrument passage conduit. An operating member for manually moving the brake member between a state in which the brake member is in contact with the side surface of the treatment instrument and a state in which the brake member is retracted from the side surface of the treatment instrument into the cutout hole is provided.

  A forceps plug that is hermetically sealed inside the treatment instrument insertion channel and pushed open by a treatment instrument inserted into the treatment instrument insertion cap is attached to the protruding portion of the treatment instrument insertion cap, and the forceps plug is inserted into the treatment instrument The brake member may be pressed / retracted against the side surface of the treatment tool while being attached to the base.

  In addition, the operating member is provided with a male screw portion that is rotatably screwed into a screw hole formed in the brake member in a direction perpendicular to the axis of the treatment instrument passage conduit, and protrudes outward from the male screw portion. The male screw portion may be rotatably supported by the treatment instrument insertion base so as not to move in the axial direction.

  Further, at least a portion of the brake member facing the treatment instrument passage pipe may be formed of an elastic member.

  According to the present invention, the brake member that abuts on the side surface of the treatment instrument that passes through the treatment instrument passage pipe and the operation member that abuts the brake member on the side surface of the treatment instrument include the inlet of the treatment instrument insertion channel. Since it is provided in the treatment tool insertion base, it is possible to easily fix / release a general treatment tool with respect to the treatment tool insertion channel with a low-cost configuration without providing any additional configuration for each treatment tool. Moreover, it can be used with the forceps plug attached or detached without being attached or detached, in either case of fixing / releasing.

  A notch hole is formed in the side wall portion of the treatment instrument passage conduit formed in the treatment instrument insertion cap at the entrance of the treatment instrument insertion channel of the endoscope, and is formed on the side surface of the treatment instrument passing through the treatment instrument passage conduit. The brake member to be abutted is disposed in the notch hole so as to be movable in a direction perpendicular to the axis of the treatment instrument passage line, and the brake member is in contact with the side surface of the treatment instrument and from the side surface of the treatment instrument to the notch hole. An operating member is provided for manually moving to the retracted state.

Embodiments of the present invention will be described with reference to the drawings.
In FIG. 2, reference numeral 1 is an endoscope insertion portion, and 2 is an operation portion. A treatment instrument insertion cap 4 is obliquely above the entrance portion of a treatment instrument insertion channel 3 that is inserted through the insertion section 1 over its entire length. The forceps plug 5 is detachably attached to the tip thereof. Reference numeral 6 denotes a manual operation knob which will be described later.

  Reference numeral 30 denotes a treatment tool such as a biopsy forceps, a high-frequency incision tool, an endoscope injection tool, or the like, and an operation unit 32 is provided at the proximal end of the flexible sheath 31 that is inserted into and removed from the treatment tool insertion channel 3. Are connected. The flexible sheath 31 is formed of, for example, a tightly wound coil pipe or a flexible tube.

  FIG. 3 shows the treatment instrument insertion base 4 portion, and the treatment instrument insertion base 4 is pressed and fixed to the operation portion 2 by a presser nut 7, and the presser nut 7 must be loosened by using a dedicated tool or the like not shown. Therefore, it cannot be removed from the operation unit 2.

  The treatment instrument insertion cap 4 is formed in an elongated cylindrical shape protruding from the operation unit 2 by, for example, about 1 to 3 cm. The protruding portion 4a of the treatment instrument insertion base 4 is formed in a so-called luer lock male base shape, and a forceps plug 5 made of a resilient rubber material is detachably attached thereto. In the state where the treatment tool 30 is not passed, the forceps plug 5 is in a state where the slit 5a formed in the closing membrane is closed, and the inside of the treatment tool insertion channel 3 is hermetically sealed.

  The treatment instrument insertion cap 4 is formed with a treatment instrument passage conduit 4b having a diameter that allows the flexible sheath 31 of the treatment instrument 30 to pass through in the axial direction. The part is formed with a notch hole 8 facing the treatment instrument passage conduit 4b.

  And the brake member 10 for making it contact | abut to the side surface of the flexible sheath 31 of the treatment tool 30 which passes the inside of the treatment tool passage pipe line 4b is movable to the orthogonal | vertical direction with respect to the axis line of the treatment tool passage pipe line 4b. It is arranged in the notch hole 8. In the brake member 10, a portion that contacts the flexible sheath 31 of the treatment tool 30 is an elastic portion 10 a made of a rubber material. However, the elastic portion 10a is not necessarily provided, and the entire brake member 10 may be formed of a member having elasticity to some extent.

  Reference numeral 11 denotes a holding cylinder that supports the brake member 10 from the outside so that the brake member 10 does not fall outward from the notch hole 8, and the male screw portion 12 integrally connected to the manual operation knob 6 The screw hole formed in the brake member 10 is screwed into the holding cylinder 11 in a direction perpendicular to the axis of the tool passage pipe 4b.

  The male screw portion 12 is connected so as to rotate integrally with the manual operation knob 6 at a square shaft portion 12a formed at the outer end portion thereof, and the state thereof is maintained by the retaining screw 13, and the manual operation knob. 6 and the male screw portion 12 can rotate together as a unit around the axis, but cannot move in the axial direction. .

  With such a configuration, when the manual operation knob 6 is rotated, the male screw portion 12 rotates about the axis integrally therewith, so that the brake member 10 in which a screw hole to be screwed with the male screw portion 12 is formed. As shown by a two-dot chain line in FIG. 3, it advances and retreats from the notch hole 8 in the direction of the treatment instrument passage conduit 4b, or retreats from the treatment instrument passage conduit 4b to the notch hole 8 side. Operate.

  FIG. 4 shows a state in which the flexible sheath 31 of the treatment tool 30 is passed from the treatment tool insertion base 4 into the treatment tool insertion channel 3. The slit 5a of the forceps plug 5 is pushed and elastically deformed by the flexible sheath 31, opens in a state of being in close contact with the outer peripheral surface of the flexible sheath 31, and in a state where the sewage or the like in the treatment instrument insertion channel 3 does not jet The flexible sheath 31 can be freely advanced and retracted in the axial direction.

  When it becomes necessary to fix the flexible sheath 31 of the treatment instrument 30 so as not to advance or retreat, the manual operation knob 6 is manually rotated to cut out the brake member 10 as shown in FIG. By pressing the elastic member 10a of the brake member 10 against the side surface of the flexible sheath 31 by pushing into the treatment instrument passage conduit 4b from the hole 8, the flexible sheath 31 is fixed to the treatment instrument passage conduit 4b. Can do.

  In this state, since the brake member 10 does not return from the treatment instrument passage pipe line 4b side unless the male screw portion 12 is screwed, the fixed state is maintained. If the manual operation knob 6 is rotated in the reverse direction, as shown in FIG. 4, the brake member 10 is retracted from the treatment instrument passage conduit 4b to the notch hole 8 side, and the treatment instrument passage conduit is disposed. The fixing of the flexible sheath 31 to 4b is released.

  As described above, in this embodiment, the brake member 10 is manually moved between the state in contact with the side surface of the flexible sheath 31 of the treatment instrument 30 passing through the treatment instrument passage conduit 4b and the retracted state. The operation member is composed of the manual operation knob 6 and the male screw portion 12, and there is no need to attach or detach the forceps plug 5 for the operation.

  The general treatment instrument 30 can be easily fixed / released from the treatment instrument insertion channel 3 with a low-cost configuration without providing any additional configuration for each treatment instrument 30.

It is side surface sectional drawing of the treatment tool fixation state of the treatment tool fixing mechanism of the endoscope of the Example of this invention. It is a side view of the endoscope of the Example of this invention. It is side surface sectional drawing of the treatment tool fixing mechanism of the endoscope of the Example of this invention. It is side surface sectional drawing of the treatment tool fixation cancellation | release state of the treatment tool fixing mechanism of the endoscope of the Example of this invention.

Explanation of symbols

3 treatment instrument insertion channel 4 treatment instrument insertion cap 4b treatment instrument passage line 5 forceps plug 6 manual operation knob (operation member)
8 Notch hole 10 Brake member 10a Elastic part 12 Male thread part (operation member)
30 treatment tool 31 flexible sheath

Claims (3)

  1. A side surface of the treatment instrument that has a notch hole formed in the side wall portion of the treatment instrument passage conduit formed in the treatment instrument insertion cap at the entrance of the treatment instrument insertion channel of the endoscope and passes through the treatment instrument passage conduit. A brake member to be brought into contact with the treatment tool is disposed in the cutout hole so as to be movable in a direction perpendicular to the axis of the treatment instrument passage line, and the brake member is brought into contact with a side surface of the treatment tool; An operation member for manually moving from a side surface to a state retracted into the notch hole is provided, and the operation member is formed on the brake member in a direction perpendicular to the axis of the treatment instrument passage conduit A male screw portion rotatably engaged with the formed screw hole, and a manual operation knob provided to protrude outward from the male screw portion, wherein the male screw portion is an axis of the male screw portion. The treatment instrument insertion port is not moved in the direction. Treatment tool fixing mechanism of the endoscope, characterized in that it is rotatably supported.
  2. A forceps plug that is hermetically sealed in the treatment tool insertion channel and is pushed open by a treatment tool inserted into the treatment tool insertion base is attached to a protruding end portion of the treatment tool insertion base, and the forceps plug is The treatment instrument fixing mechanism for an endoscope according to claim 1, wherein the brake member can be pressed / retracted from a side surface of the treatment instrument in a state of being attached to the treatment instrument insertion base .
  3.   The treatment instrument fixing mechanism for an endoscope according to claim 1 or 2, wherein at least a portion of the brake member facing the treatment instrument passage pipe is formed of an elastic member.
JP2005268110A 2005-09-15 2005-09-15 Endoscope treatment tool fixing mechanism Active JP4731256B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005268110A JP4731256B2 (en) 2005-09-15 2005-09-15 Endoscope treatment tool fixing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005268110A JP4731256B2 (en) 2005-09-15 2005-09-15 Endoscope treatment tool fixing mechanism

Publications (2)

Publication Number Publication Date
JP2007075405A JP2007075405A (en) 2007-03-29
JP4731256B2 true JP4731256B2 (en) 2011-07-20

Family

ID=37936279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005268110A Active JP4731256B2 (en) 2005-09-15 2005-09-15 Endoscope treatment tool fixing mechanism

Country Status (1)

Country Link
JP (1) JP4731256B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009153764A (en) 2007-12-27 2009-07-16 Nippon Sherwood Medical Industries Ltd Insertion assisting tool for endoscope
JP5259258B2 (en) * 2008-05-30 2013-08-07 オリンパス株式会社 Endoscope device
JP5587703B2 (en) * 2010-08-26 2014-09-10 富士フイルム株式会社 Endoscope system
CN103458762B (en) * 2011-08-09 2016-01-06 奥林巴斯株式会社 Endoscope-assisted apparatus and endoscope

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113586A (en) * 1976-03-19 1977-09-22 Takami Uehara Solely operable fiberscope for detecting living body
JPH0838476A (en) * 1994-08-02 1996-02-13 Olympus Optical Co Ltd Ultrasonic probe with curving mechanism
JPH0994253A (en) * 1995-09-29 1997-04-08 Asahi Optical Co Ltd Device to fix treatment apparatus for endoscope
JPH11313794A (en) * 1998-05-07 1999-11-16 Asahi Optical Co Ltd Master/slave type endoscope
JP2005198834A (en) * 2004-01-15 2005-07-28 Fujinon Corp Forcep plug for endoscope
JP2005211126A (en) * 2004-01-27 2005-08-11 Olympus Corp Inserting and detaching member for treating instrument, treating instrument provided with the same, and endoscope

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113586A (en) * 1976-03-19 1977-09-22 Takami Uehara Solely operable fiberscope for detecting living body
JPH0838476A (en) * 1994-08-02 1996-02-13 Olympus Optical Co Ltd Ultrasonic probe with curving mechanism
JPH0994253A (en) * 1995-09-29 1997-04-08 Asahi Optical Co Ltd Device to fix treatment apparatus for endoscope
JPH11313794A (en) * 1998-05-07 1999-11-16 Asahi Optical Co Ltd Master/slave type endoscope
JP2005198834A (en) * 2004-01-15 2005-07-28 Fujinon Corp Forcep plug for endoscope
JP2005211126A (en) * 2004-01-27 2005-08-11 Olympus Corp Inserting and detaching member for treating instrument, treating instrument provided with the same, and endoscope

Also Published As

Publication number Publication date
JP2007075405A (en) 2007-03-29

Similar Documents

Publication Publication Date Title
US8858551B2 (en) High-frequency treatment apparatus
JP3917332B2 (en) Endoscope operation wire connecting part
CN100586362C (en) Endoscope system and operation assistant device for the same
JP4481880B2 (en) Stent placement device
JP5506230B2 (en) Telescopic cannula
JP4875445B2 (en) Endoscopic treatment tool
EP1759626B1 (en) Endoscope
JP3614943B2 (en) Endoscopic puncture needle
JP5164553B2 (en) Surgical treatment device
US8771288B2 (en) Medical device having linear to rotation control
US7473220B2 (en) Surgical port device
US5195506A (en) Surgical retractor for puncture operation
US8398685B2 (en) Transbuccal plate holding cannula
DE602004006218T2 (en) Treatment instrument for endoscope
US5209736A (en) Trocar method and apparatus
EP1139853B1 (en) Endoscope instrument having reduced backlash during insertion
JP4716513B2 (en) Endoscopic clip device
JP4472362B2 (en) Endoscopic treatment tool
US8251945B2 (en) Endoscopic suction device
DE19924639B4 (en) Control unit for an endoscopic treatment instrument
DE19707373C1 (en) Releasable connection of two tube shaft instruments or instrument parts
US8070756B2 (en) Polypectomy device and method of use
US6852078B2 (en) Outer sheathed endoscope
US5088998A (en) Resectoscope apparatus
US6461330B1 (en) Surgical operation guiding apparatus

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20080501

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080606

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101220

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101224

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110120

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110216

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110302

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110406

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110419

R150 Certificate of patent or registration of utility model

Ref document number: 4731256

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140428

Year of fee payment: 3

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250