EP0738501A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Endoscope operative instrument
Assignee: Olympus Corp
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Filing: 1995-11-02
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Granted: —
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Expires: 2015-11-02
Abstract
Abstract An endoscope operative instrument according to the invention is adapted to be introduced into the interior of the body through the channel of an endoscope and permit a manipulating force of a remote manipulating section (4) to be transmitted to an operating section (2) on a distal end site, thereby manipulating the operating section (2), and comprises as its featuring constitution a tubular sheath (28) insertable into the channel of the endoscope, rotary manipulating means (55) provided on the manipulating section (4) for rotatingly manipulating the operating section (2), and a manipulating wire (33) rotatably inserted through the sheath (28) and connecting the operating section (2) and the rotary manipulating means (55) to each other to have a torque transmitting property capable of transmitting a torque from the rotary manipulating means (55) to the operating section (2).
Inventors
- 👤 Kiyotaka Matsuno
- 👤 Yukio 301 Tsuda-3-chome-Apartment No. 10 tou SATO
- 👤 Akihito Olympus-Nishi-Hachiouji-Corporas SADAMASA
- 👤 Minoru Shinozuka
- 👤 Yutaka Yanuma
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 13:44
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/29; A61B17/00234; A61B17/12; A61B17/122; A61B17/128; A61B17/1285; A61B17/2909; A61B17/34; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1445; A61B18/1492; A61B90/00; A61B90/90; A61B90/94; A61B10/00; A61B10/02; A61B10/04; A61B10/06; A61B17/064; A61B17/0643; A61B18/148; A61B2010/045; A61B2017/2912; A61B2017/2919; A61B2017/292; A61B2017/2926; A61B2017/2927; A61B2017/2929; A61B2017/2931; A61B2017/2932; A61B2017/2939; A61B2017/294; A61B2017/2946; A61B2018/00053; A61B2018/00184; A61B2018/00196; A61B2018/00315; A61B2018/00452; A61B2018/00476; A61B2018/0091; A61B2018/00916; A61B2018/1405; A61B2018/1407; A61B2018/141; A61B2018/1425; A61B90/36; A61B90/37; A61B2090/378; A61B2090/3782; A61B90/39; A61B2090/3937; A61B2218/00; A61B2218/001; A61B2218/002; A61B2218/003; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3287; A61M2005/3289
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
106 words
An endoscopic treatment tool adapted to be led into the vital body through the endoscope channel and to operate a treatment section by transmitting the operating force of an operating section at the operator's side to the treatment section, characterized by comprising: a tubular sheath adapted to be inserted into the endoscope channel; rotative operation means arranged on said operating section for rotatively operating said treatment section; and an operating wire rotatably inserted into said sheath for coupling said treatment section with said rotative operation means and having a torque transmissivity capable of transmitting the rotation torque from the rotative operation means to said treatment section.
Claim 2
Dependent Claim
100 words
An endoscopic treatment tool according to claim 1, characterized by further comprising: a lead tube adapted to be inserted into the endoscope channel, said sheath being inserted in retractively into said lead tube; a first slider connected to the base end of said sheath for performing the back-and-forth operation of said sheath with respect to said lead tube; and a second slider connected to the base end of said operating wire and engaging said first slider through a ratchet mechanism for performing the back-and-forth operation of the operating wire while moving back and forth with respect to the first slider.
Claim 3
Dependent Claim
77 words
An endoscopic treatment tool according to claim 2, characterized in that said ratchet mechanism comprises an engaging pawl formed along the longitudinal direction of said first slider, engaging means arranged in said second slider and adapted to engage said engaging pawl, a spring for biasing said engaging means with respect to said engaging pawl, and a release button for releasing the engagement between said engaging means and said engaging pawl against the biasing force of said spring.
Claim 4
Dependent Claim
48 words
An endoscopic treatment tool according to claim 3, characterized in that said release button is arranged slidably in said second slider, and the clearance between said release button and said second slider in the direction of advance and retraction of said second slider is 0.01 to 0.2 mm.
Claim 5
Dependent Claim
49 words
An endoscopic treatment tool according to claim 3, characterized by further comprising tension release means capable of releasing the tension of said operating wire by advancing and retracting said second slider with respect to said first slider while holding said first slider and said second slider engaged by ratchet.
Claim 6
Dependent Claim
23 words
An endoscopic treatment tool according to claim 5, characterized in that engaging means is arranged in said second slider, retaining a predetermined clearance.
Claim 7
Dependent Claim
18 words
An endoscopic treatment tool according to claim 6, characterized in that said clearance is 4 to 6 mm.
Claim 8
Dependent Claim
99 words
An endoscopic treatment tool according to claim 2, characterized in that a reinforcing pipe is externally arranged at the base end of said operating wire, a cylindrical support member is externally arranged on the outer periphery of said reinforcing pipe, the side of said support member is caulked at least at two points in the longitudinal direction, whereby said operating wire, said reinforcing pipe and said support member are integrally fixed, said support member is caught in an engaging section arranged in said second slider, whereby said operating wire and said second slider are rotatably coupled to each other.
Claim 9
Dependent Claim
25 words
An endoscopic treatment tool according to claim 8, characterized in that said adjacent caulking operations are performed on the opposite sides of said support member.
Claim 10
Dependent Claim
43 words
An endoscopic treatment tool according to claim 8, characterized by further comprising a caulking member comprising a first arm having a recess and a second arm having a protrusion fitted in the recess, and said support member is held by said caulking member.
Claim 11
Dependent Claim
29 words
An endoscopic treatment tool according to claim 8, characterized in that the longitudinal distance by which adjacent caulking points are spaced from each other is 0.4 to 0.6 mm.
Claim 12
Dependent Claim
57 words
An endoscopic treatment tool according to any one of claims 1 to 11, characterized in that said treatment section is a holding clamp rotatable with respect to said sheath and adapted to bind or hold a vital tissue, said holding clamp having a holder thereof opening and closing with the advance and retraction of said operating wire.
Claim 13
Dependent Claim
85 words
An endoscopic treatment tool according to any one of claims 1 to 11, characterized in that said treatment section is a clip rotatable with respect to said sheath and adapted to widely open due to the inherent widely-opening tendency thereof, said clip being adapted to replaceably engage a hook mounted at the forward end of said operating wire and to close by being retracted into a holding tube mounted replaceably at the forward end of said sheath by the retracting operation of said operating wire.
Claim 14
Dependent Claim
64 words
An endoscopic treatment tool according to claim 1, characterized in that said treatment section is an incision knife capable of incising the tissue by a high-frequency current, said incision knife being rotatable and capable of advancing and retracting with respect to said sheath, said incision knife having a forward end bent at a predetermined angle with respect to the longitudinal axis of said sheath.
Claim 15
Dependent Claim
32 words
An endoscopic treatment tool according to claim 14, characterized by further comprising restriction means for restricting the amount by which said incision knife is projected from the forward-end opening of said sheath.
Claim 16
Dependent Claim
59 words
An endoscopic treatment tool according to claim 1, characterized in that said treatment section is a cleaning liquid injection section rotatable with respect to said sheath and adapted to receive and discharge the cleaning liquid supplied thereto through said sheath, said cleaning liquid injection section having means for discharging diagonally backward the cleaning liquid supplied thereto through said sheath.
Claim 17
Dependent Claim
48 words
An endoscopic treatment tool according to claim 1, characterized in that said treatment section is an injection needle for injecting the chemical liquid supplied thereto through said sheath into a vital tissue, said injection needle being rotatable and adapted to advance and retract with respect to said sheath.
Claim 18
Dependent Claim
26 words
An endoscopic treatment tool according to claim 17, characterized in that said injection needle is retractively and rotatably screwed to the forward end of said sheath.
Claim 19
Dependent Claim
34 words
An endoscopic treatment tool according to claim 17 or 18, characterized by further comprising restriction means for restricting the amount by which the injection needle is projected from the forward-end opening of said sheath.
Claim 20
Dependent Claim
98 words
An endoscopic treatment tool according to claim 1, characterized in that said treatment section is a high-frequency snare including a wire closed in loop and a loop section capable of widely opening due to the wide-opening tendency attached thereto, said loop section is rotatable and retractable with respect to said sheath, said loop section being pulled into said sheath by the pulling operation of said operating wire so that said loop form is compressed to bind the tissue located in said loop section, said bound tissue being burnt off by the high-frequency current supplied through said operating wire.
Claim 21
Dependent Claim
124 words
An endoscopic treatment tool according to claim 1, characterized in that said treatment section is a high-frequency marking section including a marking section forming a ring member, said marking section including a shape memory alloy for storing the annular shape of said ring member and the angle α of the axis extending from the root of said ring member to said ring member, said marking section being rotatable and retractable with respect to said sheath and capable of being pulled into said sheath by deforming the ring member in linear fashion, said marking section being adapted to attach an annular marking on the tissue against which the ring member is pressed by supplying a high-frequency current to said marking section through said operating wire.
Claim 22
Dependent Claim
103 words
An endoscopic treatment tool according to claim 1, characterized in that a cleaning liquid injection member is arranged at the forward end of said sheath for receiving and discharging the cleaning liquid supplied through said sheath, which cleaning liquid injection member has an opening for discharging forward the cleaning liquid supplied thereto through said sheath, and said treatment section is a top adapted to advance and retract with respect to said opening, said top including a guide groove for supplying spirally toward said opening the cleaning liquid supplied thereto through said sheath, said top being screwed retractively to said cleaning liquid injection member.
Claim 23
Dependent Claim
132 words
An endoscopic treatment tool according to claim 1, characterized in that the forward end of said sheath has fixed thereon a cylindrical forward-end tip having an internal space communicating with an external environment at a first opening formed in the side wall of said forward-end tip, said internal space also communicating with the inner hole of said sheath at a second opening formed at the base end thereof, an ultrasonic transducer being arranged on the forward end side of said internal space located in proximity to said first opening for transmitting an ultrasonic wave, said treatment section is a reflective mirror rotatably mounted on said sheath in opposed relation to said ultrasonic transducer, said reflective mirror being adapted to reflect the ultrasonic wave generated from said ultrasonic transducer toward said first opening.
References Cited (Backward Citations)
No citation records indexed.
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