WO2007017949A1 - 内視鏡用処置具 - Google Patents
内視鏡用処置具 Download PDFInfo
- Publication number
- WO2007017949A1 WO2007017949A1 PCT/JP2005/014768 JP2005014768W WO2007017949A1 WO 2007017949 A1 WO2007017949 A1 WO 2007017949A1 JP 2005014768 W JP2005014768 W JP 2005014768W WO 2007017949 A1 WO2007017949 A1 WO 2007017949A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- endoscope
- forceps
- closing member
- treatment instrument
- 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.)
- Ceased
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/128—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for applying or removing clamps or clips
- A61B17/1285—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for applying or removing clamps or clips for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments 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
- A61B1/012—Instruments 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 characterised by internal passages or accessories therefor
- A61B1/018—Instruments 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 characterised by internal passages or accessories therefor for receiving instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2931—Details of heads or jaws with releasable head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/005—Auxiliary appliance with suction drainage system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/007—Auxiliary appliance with irrigation system
Definitions
- the present invention relates to an endoscope treatment tool that is used by being inserted into an endoscope channel.
- an endoscopic treatment tool having a liquid supply line.
- the endoscopic treatment tool is a forceps with a pair of treatment pieces attached to the distal end of the flexible sheath so that it can be opened and closed with a pin
- the fluid supply line is on the axis of the flexible sheath. Placed in.
- the liquid supply line passes between two pins provided for each treatment piece and opens in the center of the front surface of the insulating spacer.
- Patent Document 1 Japanese Patent Laid-Open No. 2004-275548
- hemostasis may be performed with the treatment piece closed.
- the present invention has been made in view of the above circumstances, and an object thereof is to enable liquid feeding regardless of the open / closed state of the tip portion.
- the present invention is an endoscopic treatment instrument, which is a treatment instrument insertion portion that is inserted through a channel of an endoscope, an opening / closing member support portion that is formed at a distal end of the treatment instrument insertion portion, An opening / closing member that is supported by the support portion so as to be freely opened and closed, and is provided on the outside of the opening / closing member in a direction orthogonal to the length direction of the opening / closing member, At least one tip opening that opens toward the target site And a liquid supply line for supplying a constant liquid.
- the distal end opening of the liquid supply conduit is displaced by approximately 90 ° around the axis of the treatment instrument insertion portion with respect to the opening / closing direction of the opening / closing member. It is provided in, It is characterized by the above-mentioned.
- the present invention is characterized in that, on the premise of the above invention, the liquid supply conduit is provided outside the treatment instrument insertion portion.
- the liquid supply conduit is arranged outside the treatment instrument insertion portion, so that the apparatus configuration is simplified.
- the present invention is a biopsy forceps, a high-frequency forceps, or a clip.
- the endoscopic treatment tool is a high-frequency forceps, biopsy forceps, or clip
- a liquid for washing away bleeding or a hemostatic agent is fed to the liquid feeding line.
- the present invention provides a treatment instrument for an endoscope, a treatment instrument insertion portion penetrated by a channel of the endoscope, and an opening / closing member support portion formed at a distal end of the treatment instrument insertion portion.
- An opening / closing member that is supported by the opening / closing member support portion so as to be freely opened and closed, and is formed from the treatment instrument insertion portion to the opening / closing member support portion for transmitting a driving force on the hand side to the opening / closing member.
- a transmission member that is connected to the opening and closing member and the treatment instrument insertion portion, and has a flow passage area larger than a flow passage area formed between the hole and the transmission member. And a liquid-feeding passage for feeding a predetermined liquid to the target site.
- the holes necessary for allowing the transmission member to pass therethrough are communicated with the liquid feeding conduit, and the flow area of the holes is small. After a short time, the liquid can be surely ejected with the opening force at the tip of the liquid supply line.
- the present invention employs the configuration as described above, the liquid can be reliably fed to the target site according to the state of use. Therefore, stop bleeding immediately and check the bleeding site.
- FIG. 1 is a view showing a high-frequency forceps and an endoscope according to an embodiment of the present invention.
- FIG. 2 is a diagram showing a configuration of a high-frequency forceps.
- FIG. 3 is a sectional view taken along line III-III in FIG.
- FIG. 4 is a view showing a state where a pair of energy forceps of the high-frequency forceps is opened.
- FIG. 5 is a view on arrow A in FIG.
- FIG. 6 is a diagram showing a configuration of a high-frequency forceps according to an embodiment of the present invention.
- FIG. 7 is a view on arrow B in FIG.
- FIG. 8 is a cross-sectional view of the distal end portion of the biopsy forceps according to the embodiment of the present invention.
- FIG. 9 is a view taken along arrow C in FIG.
- FIG. 10 is a cross-sectional view of the distal end portion of the ligating tool according to the embodiment of the present invention.
- FIG. 11 is a sectional view taken along line XI-XI in FIG.
- FIG. 12 is a sectional view in which the inner sheath is accommodated in the outer sheath.
- FIG. 13 is a view in which the pressing member and the inner sheath are disengaged.
- FIG. 14 is a view showing a clip placed in the body.
- FIG. 1 shows a schematic configuration of an endoscope system including the endoscope treatment tool of the present embodiment.
- the endoscope system includes an endoscope 1, high-frequency forceps (endoscopic treatment tool) 3 inserted into a forceps channel 2 of the endoscope 1, and an endoscope 1.
- An endoscope main body 5 connected with a universal cord 4 is provided.
- the endoscope 1 includes a flexible insertion portion 6 to be inserted into a living body, an operation portion 7 connected to the proximal end (external) side of the insertion portion 6, and a universal cord 4.
- a bending portion 8 that can be bent is provided at the distal end of the insertion portion 6.
- a tip cover 9 is connected to the tip of the bending portion 8.
- the tip cover 9 includes an imaging unit (not shown) for observing the inside of the body and an irradiation unit for irradiating illumination light.
- An opening of the forceps channel 2 is formed on the distal end surface of the distal end cover 9.
- the forceps channel 2 has a forceps port 2a on the operation unit 7 side, and communicates between the outside of the body and the inside of the body.
- a forceps stopper 10 is attached to the forceps port 2a.
- the operation unit 7 includes a plurality of switches 11 and a plurality of operation knobs 12.
- Switch 11 can be used to record images taken by the imaging unit, or to turn off the lights. There are switches to change.
- the signal of each switch 11 is sent to the endoscope body 5 via the universal code 4.
- the operation knob 12 includes a knob that changes the bending portion 8 in a predetermined direction.
- the endoscope body 5 is provided with a device for processing and displaying an image captured by the endoscope 1, an illumination light source for imaging, and the like.
- the high-frequency forceps 3 cauterizes the blood vessel W2 whose cross section is exposed by incision of the inner wall W1 of the extinguisher and the surrounding mucosal tissue W3 and submucosal tissue W4. This is an energy forceps that can stop bleeding.
- the high-frequency forceps 3 opens and closes the flexible treatment instrument insertion portion 21 inserted into the forceps channel 2 of the endoscope 1, the treatment portion 22 provided at the distal end of the treatment instrument insertion portion 21, and the treatment portion 22.
- Two operating wires 23a and 23b transmission member, see FIG. 3) to be operated and a treatment instrument operation section 24 provided at the proximal end of the treatment instrument insertion section 21 are provided.
- the treatment instrument insertion portion 21 has a coiled inner sheath 25.
- a liquid supply conduit 26 through which liquid flows along the inner sheath 25 is formed.
- Operation wires 23a and 23b are threaded through the liquid feeding pipe 26.
- the outer side of the inner sheath 25 is covered with a tubular outer sheath 27 that also serves as an insulating member. As a result, the inner sheath 25 is insulated from the outside by the outer sheath 27.
- the treatment section 22 includes a front end cover (opening / closing member support section) 30 that is fixed to the distal end of the treatment instrument insertion section 21, and a pin 31 that pivots on the distal end cover 30. It has a pair of forceps cups (opening / closing members) 32a and 32b that are freely supported.
- the distal end cover 30 has a substantially cylindrical shape, and a liquid feeding lumen 33 is provided from the proximal end force fixed to the treatment instrument insertion portion 21 to the distal end facing the blood discharge site.
- the liquid supply lumen 33 is a liquid supply pipe line that penetrates the tip cover 30 along its length direction.
- a tip opening 33 a of the liquid feeding lumen 33 is formed on the tip surface of the tip cover 30.
- One tip opening 33a is arranged on the radially outer side perpendicular to the length direction of the forceps cups 32a, 32b and the tip cover 30, and opens to the tip (distal end) by force.
- the tip cover 30 is provided with a slit 34 in parallel with the liquid feeding lumen 33.
- the slit 34 is a groove formed by directing force from the distal end side of the distal end cover 30 to the proximal end side of the distal end cover 30.
- Two slits are provided in the wall 30a on the proximal end side of the tip cover 30 at the slit 34.
- a hole 35 is provided in the tip cover 30 substantially parallel to the axis. The through hole 35 allows the treatment instrument insertion portion 21 and the slit 34 to communicate with each other.
- a single operation wire 23a, 23b can be passed through the through hole 35 so as to be able to advance and retreat.
- the forceps cups 32a and 32b are arranged to face each other along the slit 34 provided in the tip cover 30.
- the forceps cups 32a and 32b have cup portions 36a and 36b, and arm portions 37a and 37b extending so that the proximal end force of the cup portions 36a and 36b is directed toward the rear (the treatment instrument insertion portion 21 side). .
- the cup portions 36a, 36b have concave portions 38a, 38b on the opposing surfaces.
- the forceps surface 39a that forms the outer edge of the recess 38a is a portion that contacts the other cup portion 36b, and a plurality of grooves 40 are provided at predetermined intervals.
- the forceps surface 39b that forms the outer edge of the concave portion 38b is a portion that comes into contact with the other cup portion 36a, and a plurality of grooves 40 are provided at predetermined intervals.
- the arm portion 37a of the forceps cup 32a extends rearward from the base end of the cup portion 36a.
- a hole 48a is formed at the rear end of the arm portion 37a.
- the tip of the operation wire 23a is engaged with the hole 48a.
- the pin 31 is rotatably supported.
- a hole 48b is formed in the rear end portion of the arm portion 37b of the forceps cup 32b.
- the tip of the operation wire 23b is engaged with the hole 48b.
- a predetermined portion of the arm portion 37b is rotatably supported by a pin 31 (see FIG. 3).
- the forceps cups 32a and 32b rotate around the pin 31.
- Each pin 31, each arm 37a, 37b, and each tip of the operation wires 23a, 23b is a link mechanism that opens and closes the pair of forceps cups 32a, 32b.
- the operation wire 23a and the operation wire 23b have respective distal end portions that pass through the through holes 35 of the distal end cover 30, and engage with the forceps cup 32a and the forceps cup 32b, respectively.
- Each operation wire 23a, 23b is formed by covering a conductive material with an insulating sheath.
- the tips of the operation wires 23a and 23b are electrically connected to the forceps cups 32a and 32b.
- the proximal ends of the operation wires 23a and 23b pass through the treatment instrument insertion portion 21, are pulled out to the treatment instrument operation portion 24, and are connected to the handle portion 41 of the treatment instrument operation portion 24.
- the treatment instrument operation unit 24 includes an operation unit main body 42 and a hand that is slidable with respect to the operation unit main body 42. It has a dollar part 41.
- the proximal end of the treatment instrument insertion portion 21 is connected to the distal end of the operation portion main body 42.
- a finger ring 43 is provided at the base end of the operation unit body 42.
- a luer cock 44 is provided on the distal end side of the operation section main body 42. The inner passage of the luer cock 44 passes through the operation portion main body 42 and communicates with the liquid feeding conduit 26 (see FIG. 3).
- a slide groove 45 is formed along the length direction of the operation unit main body 42.
- a handle portion 41 is slidably fitted into the slide groove 45. Operation wires 23a and 23b passing through the operation unit main body 42 are fixed to the handle unit 41.
- the handle portion 41 is provided with holes 46a and 46b through which an operator puts fingers, a terminal 47, and a force S.
- the terminal 47 is electrically connected to the operation wires 23a and 23b.
- a high frequency power source 49 see FIG. 1
- the pair of forceps cups 32a and 32b can be energized.
- the luer cock 44 can be equipped with a fluid supply device (not shown) that stores liquid.
- the fluid supply device include a syringe and a fluid pump.
- the liquid water, physiological saline, a hemostatic agent, a staining solution, or the like may be used.
- the high-frequency forceps 3 are inserted into the channel 2 of the endoscope 1, and the terminal 47 is connected to the high-frequency power source 49.
- the tip of the high-frequency forceps 3 is brought close to the circumference of the bleeding site (for example, blood vessel W2 shown in FIG. 1).
- the insertion part 6 of the endoscope 1 is bent, and the tip of the tip cover 30 of the high-frequency forceps 3 is directed to the bleeding site.
- the syringe storing the liquid is connected to the luer cock 44 of the treatment instrument operation unit 24, and the liquid in the syringe is sent out to the liquid feeding line 26.
- the liquid sent out from the syringe is introduced from the luer cock 44 into the liquid feeding conduit 26 in the treatment instrument insertion portion 21.
- the liquid is guided to the treatment section 22 through the liquid supply conduit 26, and is ejected from the liquid supply lumen 33 of the treatment section 22 toward the bleeding site through the distal end opening 33a.
- the squirting fluid will wash away the blood around the bleeding site.
- the bleeding position is confirmed by the imaging part of the endoscope 1, and the handle part 41 of the treatment instrument operation part 24 is slid to open the pair of forceps cups 32a and 32b.
- the handle portion 41 is pushed toward the distal end side, and the operation wires 23a and 23b are moved forward toward the bleeding site.
- the operation wires 23a and 23b move forward, the arm portions 37a and 37b supported by the tip cover 30 with the pins 31 are separated in a direction substantially perpendicular to the length direction of the treatment portion 22.
- the forceps cups 32a and 32b rotate about the pin 31 to open the distance between the forceps surfaces 39a and 39b.
- the pair of forceps cups 32a and 32b sandwich the blood vessel W2 with the forceps surfaces 39a and 39b together with the submucosal tissue W4 around the exposed blood vessel W2.
- the tip of the cut surface of the blood vessel W2 is in the ⁇ 38a, 38b of the forceps cup 32a, 32b.
- the liquid supply lumen 33 is provided in the treatment section 22, the liquid can be ejected from the liquid supply lumen 33 in a direction substantially parallel to the extending direction of the pair of forceps cups 32a and 32b. Therefore, the periphery of the bleeding site can be washed away with the liquid while maintaining the state in which the high-frequency forceps 3 is inserted into the endoscope 1, and the bleeding site can be reliably confirmed. Since the length direction of the liquid feeding lumen 33 and the extending direction of the pair of forceps cups 32a and 32b are substantially parallel, the position where the liquid body is sprayed can be specified. Therefore, hemostasis can be performed quickly and easily.
- the high-frequency forceps 3 can be used while washing the affected area with the liquid supply or immediately after washing. Can stop hemostasis by frequency. Therefore, the procedure becomes easy. Since the position of the liquid feeding lumen 33 and the pair of forceps cups 32a and 32b are arranged at different positions, the configuration of the apparatus can be simplified.
- the liquid supply lumen 33 does not hinder the opening and closing of the forceps cups 32a and 32b.
- the field of view does not narrow.
- the high-frequency forceps 80 has a treatment portion 81 provided at the distal end of a flexible treatment instrument insertion portion 21.
- a treatment instrument operation section 83 is provided at the proximal end of the treatment instrument insertion section 21.
- a liquid supply conduit 84 is disposed along the treatment section 81 and the treatment instrument insertion section 21 to send a liquid to be ejected urgently to the bleeding site.
- the treatment portion 81 is supported so that the pair of forceps cups 32a and 32b can turn and face the distal end cover (opening / closing member support portion) 85.
- the forceps cups 32a and 32b have the same configuration as that of the first embodiment.
- the treatment portion 81 is configured to be rotatable around a pin (not shown) via a link mechanism that has force such as the arm portions 37a and 37b and the operation wires 23a and 23b.
- the operation wires 23a and 23b pass through the distal end cover 85 and the treatment instrument insertion portion 21, and are fixed to the handle portion 41 of the treatment instrument operation portion 83.
- a part of the outer periphery of the tip cover 85 is recessed.
- the leading end of the liquid supply conduit 84 is fixed to the recess 85a.
- the recess 85a is provided along the length direction of the tip cover 85 at a position substantially perpendicular to the opening / closing direction of the tips of the pair of forceps cups 32a and 32b.
- One liquid supply conduit 84 is arranged on the radially outer side orthogonal to the length direction of the forceps cups 32a and 32b and the tip cover 85, and is opened by force toward the tip (distal end).
- the liquid supply conduit 84 has at least a portion that is fixed to the outer surface of the outer sheath 27 and is flexible.
- the proximal end of the fluid delivery line 84 is the main body of the operation part 86 of the treatment instrument operation part 83. Fixed.
- a luer cock 44 to which a syringe can be connected is attached to the proximal end portion of the liquid feeding conduit 84.
- the operation section main body 86 of the treatment instrument operation section 83 has a liquid supply conduit 84 fixed to the outer surface.
- the operation section main body 86 is directly connected to the liquid supply conduit 84 and the luer cock 44.
- Other configurations are the same as those in the first embodiment.
- This treatment section 81 is used by being inserted into the channel 2 of the endoscope 1.
- the tip of the tip cover 85 is directed toward the bleeding site, and the syringe force also sends out the liquid.
- the liquid from which the syringe force is also sent out is ejected from the tip of the liquid supply conduit 84, and the blood around the bleeding site is washed away.
- the operation wires 23a and 23b are advanced and retracted, and the bleeding site and its periphery are sandwiched between the pair of forceps cups 32a and 32b.
- a high-frequency current is applied from the high-frequency power source 49 to cauterize the submucosal tissue W4 in contact with the forceps surfaces 39a and 39b with the blood vessel W2 contained.
- liquid feeding to and around the bleeding site and hemostasis can be performed quickly.
- liquid supply conduit 84 is disposed outside the treatment portion 81 and the treatment instrument insertion portion 21, liquid supply and hemostasis can be performed with a simple configuration.
- Other effects are the same as in the first embodiment.
- the endoscope treatment tool is a biopsy forceps.
- the same components as those in the first embodiment are denoted by the same reference numerals.
- a duplicate description of the first embodiment is omitted.
- the biopsy forceps 91 has a flexible and long treatment instrument insertion portion 92.
- the sheath 93 of the treatment instrument insertion portion 92 is hollow.
- the lumen of the sheath 93 becomes a liquid supply line 94.
- An opening / closing member support 95 is provided at the distal end of the sheath 93.
- the opening / closing member support portion 95 has a concave shape provided so as to traverse the sheath 93 in the radial direction and having a slit 96.
- the liquid supply line 94 extends substantially parallel to the axis of the sheath 93.
- the distal end portion of the liquid feeding pipe 94 is branched into two liquid feeding branch pipes 94 a sandwiching the opening / closing member support portion 95, and a distal end opening 97 is formed on the distal end surface of the sheath 93.
- Two tip openings 97 are arranged on the radially outer side perpendicular to the length direction of the biopsy cup 99 and the opening and closing support member 95, and are arranged at the tip (distal end). Open toward.
- the front end opening 97 has a shape in which a part of the circle is cut off by the opening / closing member supporting portion 95.
- a pin 98 crosses the slit 96 in a direction perpendicular to the axis of the sheath 93.
- the biopsy cup 99 as a pair of opening / closing members is supported by the pins 98 so as to be freely opened and closed by the opening / closing member support portion 95.
- the biopsy cup 99 has an arm 99a supported by the pin 98.
- a cup portion 99b projects beyond the sheath 93 at the tip of the arm 99a.
- Each cup part 99b has a recess (not shown) facing each other.
- the size of the pair of cup portions 99b is equal to or smaller than the outer diameter of the sheath 93 in the closed state.
- the width of the cup portion 99b in the direction perpendicular to the opening / closing direction is narrower than the arrangement interval of the tip openings 97.
- the biopsy cup 99 is arranged so as to be sandwiched between two tip openings 97.
- An operation wire 100 is connected to the proximal end of the arm 99a of the biopsy cup 99.
- the operation wire 100 is drawn into the hollow sheath 93 through the through hole 101 of the opening / closing member support part 95 and connected to a treatment tool operation part (not shown).
- the treatment instrument operation unit is configured by removing the terminal 47 from the treatment instrument operation unit 24 shown in FIG.
- the through hole 101 allows the liquid supply conduit 94 and the slit 96 to communicate with each other.
- the flow passage area of the gap when the operation wire 100 is passed through the through hole 101 is sufficiently smaller than the flow passage areas of the liquid feeding branch conduit 94 a and the tip opening 97.
- the biopsy forceps 91 When performing a procedure using the biopsy forceps 91, the biopsy forceps 91 is passed through the endoscope 1 (see FIG. 1), and the biopsy cup 99 is brought close to the target site.
- physiological saline is injected from the luer cock 44, and the tip opening 97 force is also ejected through the liquid supply line 94. Saline will reach the target site without being blocked by biopsy cup 99 and wash away the bleeding.
- the handle portion 41 is operated to open the pair of biopsy forceps 91, and the force is applied to advance the entire treatment instrument insertion portion 92 and press the biopsy cup 99 against the target site. Thereafter, the biopsy cup 99 is closed, the target part is sandwiched, and the entire treatment instrument insertion part 92 is retracted with the force, and the target part is torn and collected.
- the biopsy forceps 91 is provided with a distal end opening 97 at a position away from the movement range force when the biopsy cup 99 is opened and closed, the biopsy cup 99 is opened while injecting physiological saline. You can close it.
- a hemostatic agent is injected from the luer cock 44, and the hemostatic agent is ejected from the tip opening 97. The hemostatic agent reaches the bleeding site without being blocked by the biopsy cup 99.
- the hemostatic agent can be sprayed after the biological tissue at the target site is collected. Therefore, it is possible to stop bleeding immediately after collecting the biological tissue.
- the endoscope treatment tool may be a high-frequency forceps having the configuration of the third embodiment.
- Saline can be fed from the tip opening 97 to check the bleeding site and cauterize the force.
- the endoscopic treatment instrument is a ligation instrument equipped with an openable / closable clip.
- the same components as those in the first embodiment are denoted by the same reference numerals. Descriptions overlapping with the first embodiment are omitted.
- the ligation instrument 110 has a treatment instrument insertion portion 111 that penetrates the treatment instrument channel of the endoscope.
- the treatment instrument insertion portion 111 has a long outer sheath 112 having flexibility, and an inner sheath 113 that is passed through the outer sheath 112 so as to freely advance and retract.
- the outer sheath 112 has a hole 114 through which the inner sheath 113 passes.
- the four liquid supply conduits 115 extending in the circumferential direction on the outer periphery of the hole 114 are substantially parallel to the axis. Therefore, as shown in FIG. 10, the distal end opening 116 of the liquid supply conduit 115 formed on the distal end surface of the outer sheath 112 is disposed so as to surround the hole 114.
- the inner sheath 113 is formed of a close coil sheath.
- a peripheral edge portion of the distal end opening of the inner sheath 113 is a stopper 117 whose inner diameter is reduced.
- An operation wire 118 is inserted into the inner sheath 113 so as to freely advance and retract.
- the distal end of the operation wire 118 is a large-diameter portion 118a, and a connecting member 119 as an opening / closing member support portion is provided on the large-diameter portion 118a.
- the fragile portion 119a is provided with a protrusion 119b that engages the clip 120 in a direction substantially orthogonal to the axial direction.
- the connecting member 119 is accommodated in a cylindrical pressing member 121.
- the pressing member 121 has a substantially cylindrical shape.
- the proximal end of the pressing member 121 is expanded in diameter after the thin weak part 121a is formed.
- the enlarged diameter portion 121b can be engaged with the proximal end side of the stagger 117 of the inner sheath 113.
- the front end surface of the pressing member 121 is closed except for two slits 122. These slits 122 are formed substantially parallel to the projecting direction of the projection 119b of the connection member 119.
- an engagement piece 121c is provided toward the outer side in the radial direction.
- the clip 120 is engaged with the protrusion 119b of the connecting member 119.
- the clip 120 is formed by bending a central part of a belt-shaped stainless steel and engaging the protrusion 119b from the base end side.
- the clip 120 has two clip legs 120a extending toward the tip.
- the clip leg 120a extends outward through the two slits 122 one by one.
- the tip end portion of the clip leg portion 120a pulled out from the pressing member 121 is bent in the approaching direction to become a claw portion 120b.
- An operation unit is connected to the proximal end portion of the inner sheath 113.
- the operation unit has a configuration in which the terminal 47 is removed from the treatment instrument operation unit 24 shown in FIG.
- the ligature tool 110 When hemostasis is performed with the clip 120, the ligature tool 110 is inserted into the endoscope. At this time, as shown in FIG. 12, the inner sheath 113 is drawn into the outer sheath 112 and the clip 120 is accommodated in the outer sheath 112. Once the tip of the outer sheath 112 is close to the target site, The inner sheath 113 is advanced relative to the outer sheath 112, and the clip 120 is also protruded from the distal end force of the outer sheath 112. If the target site cannot be confirmed due to bleeding, physiological saline is injected from the luer cock 44 and is ejected from the tip opening 116 through the liquid feeding line 115. Saline is sprayed from each of the four tip openings 116, and the bleeding is washed and flushed with the saline from the V ⁇ tip opening 116, which mainly overlaps the clip 120.
- the entire ligature tool 110 is pushed in, the clip 120 is pressed against the living tissue, and the bleeding site is pinched by the nail portion 120b.
- the handle portion 41 is pulled, the bow I is stretched on the operation wire 118, the connecting member 119 is retracted, and the clip 120 is pulled back into the pressing member 121.
- the clip legs 120a are closed and ligated across the bleeding site.
- the handle 41 is advanced again to open the clip leg 120a, the bleeding site can be ligated again.
- the handle portion 41 is further pulled toward the proximal side to break the fragile portion 119a of the connecting member 119.
- the operation wire 118 is pulled back, and the large diameter portion 118a comes into contact with the enlarged diameter portion 121b of the pressing member 121 to push the enlarged diameter portion 121b to the proximal end side.
- the thin weak part 121a is broken, and the engagement between the pressing member 121 and the inner sheath 113 is released.
- the clip 120 ligating the bleeding member and the pressing member 121 are left in the body.
- tip openings 116 of the liquid delivery line 115 are arranged radially outwardly perpendicular to the length direction of the clip 120 and the inner sheath 113, and the openings are directed toward the tip (distal end). I let you. Therefore, liquid can be fed regardless of whether the clip 120 is open or closed, and bleeding can be washed away in advance. Therefore, confirmation of the target part becomes easy.
- the liquid is fed with the clip 120 closed, a large field of view can be secured and the liquid can be delivered reliably.
- the tip openings 116 are arranged in the circumferential direction, the liquid can be reliably fed regardless of the rotation position of the clip 120 and the opening and closing of the clip 120.
- the clip may be configured such that the clip leg can be closed only once. However, as in this embodiment, the clip 120 that can be opened and closed a plurality of times is preferable because the target portion can be reliably ligated.
- the present invention can be widely applied without being limited to the above embodiments.
- the endoscope treatment tool may include a nichrome wire, a direct current may be passed through the nichrome wire, and hemostasis may be performed by heat generation. Further, the endoscope treatment tool may be configured to incise or excise the target site. In this case, an incision or excision is performed while the bleeding is washed away with the liquid ejected from the liquid supply line. As the liquid at this time, a liquid containing a pigment can be used.
- the endoscope treatment tool according to the present invention can be used by being inserted into a channel of an endoscope.
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- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Vascular Medicine (AREA)
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Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2005/014768 WO2007017949A1 (ja) | 2005-08-11 | 2005-08-11 | 内視鏡用処置具 |
| EP05770426A EP1913876A4 (en) | 2005-08-11 | 2005-08-11 | TREATMENT DEVICE FOR AN ENDOSCOPE |
| KR1020087003037A KR101164286B1 (ko) | 2005-08-11 | 2005-08-11 | 내시경용 처치구 |
| JP2007529446A JP4690410B2 (ja) | 2005-08-11 | 2005-08-11 | 内視鏡用処置具 |
| US12/028,407 US8932323B2 (en) | 2004-02-13 | 2008-02-08 | Treatment tool for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2005/014768 WO2007017949A1 (ja) | 2005-08-11 | 2005-08-11 | 内視鏡用処置具 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/028,407 Continuation US8932323B2 (en) | 2004-02-13 | 2008-02-08 | Treatment tool for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007017949A1 true WO2007017949A1 (ja) | 2007-02-15 |
Family
ID=37727145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/014768 Ceased WO2007017949A1 (ja) | 2004-02-13 | 2005-08-11 | 内視鏡用処置具 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8932323B2 (ja) |
| EP (1) | EP1913876A4 (ja) |
| JP (1) | JP4690410B2 (ja) |
| KR (1) | KR101164286B1 (ja) |
| WO (1) | WO2007017949A1 (ja) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009523041A (ja) * | 2006-01-12 | 2009-06-18 | マルチ バイオプシー サンプリング カンパニー アーペーエス | 多数のサンプルを採取するサンプリング装置 |
| JP2011206488A (ja) * | 2010-03-30 | 2011-10-20 | Fujifilm Corp | 結紮装置 |
| JP5198683B1 (ja) * | 2012-11-21 | 2013-05-15 | 富士システムズ株式会社 | 電気メス洗浄用水出しチューブ |
| JP5275527B1 (ja) * | 2013-02-05 | 2013-08-28 | 富士システムズ株式会社 | 電気メス洗浄用水出しチューブ |
| JP2014166361A (ja) * | 2014-03-13 | 2014-09-11 | Fujifilm Corp | 結紮装置 |
| WO2017134752A1 (ja) * | 2016-02-02 | 2017-08-10 | オリンパス株式会社 | 内視鏡処置具 |
| JP6227204B1 (ja) * | 2016-02-02 | 2017-11-08 | オリンパス株式会社 | 内視鏡処置具 |
| JP2022035058A (ja) * | 2020-08-20 | 2022-03-04 | 株式会社Biomedical Solutions | 生検鉗子 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011141800A1 (en) * | 2010-05-10 | 2011-11-17 | Endosense S.A. | Irrigated finned ablation head |
| WO2012060189A1 (ja) * | 2010-11-01 | 2012-05-10 | オリンパスメディカルシステムズ株式会社 | 処置具 |
| JP6622175B2 (ja) * | 2016-11-29 | 2019-12-18 | 国立大学法人千葉大学 | トロッカー |
| KR102593540B1 (ko) * | 2021-05-18 | 2023-10-23 | 한림대학교 산학협력단 | 다방향 조절이 가능한 내시경 클립장치 |
| JP7492085B2 (ja) * | 2021-05-25 | 2024-05-28 | 清明 本間 | 内視鏡用処置具 |
| KR102652179B1 (ko) * | 2021-08-30 | 2024-03-29 | 주식회사 파인메딕스 | 내시경용 지혈 겸자 |
| WO2023248072A1 (en) * | 2022-06-22 | 2023-12-28 | Covidien Lp | Systems and methods for providing and operating dissecting catheters |
| KR102901862B1 (ko) * | 2023-06-22 | 2025-12-18 | 주식회사 파인메딕스 | 내시경용 지혈 겸자 |
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- 2005-08-11 JP JP2007529446A patent/JP4690410B2/ja not_active Expired - Fee Related
- 2005-08-11 KR KR1020087003037A patent/KR101164286B1/ko not_active Expired - Fee Related
- 2005-08-11 EP EP05770426A patent/EP1913876A4/en not_active Withdrawn
-
2008
- 2008-02-08 US US12/028,407 patent/US8932323B2/en active Active
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| JPH0551314U (ja) * | 1991-12-12 | 1993-07-09 | オリンパス光学工業株式会社 | 細胞採取用鉗子 |
| JP2002505904A (ja) * | 1998-03-09 | 2002-02-26 | スペクトラサイエンス,インコーポレイティド | 光学的生検鉗子システム及び組織標本採取方法 |
| JP2001327512A (ja) * | 2000-05-24 | 2001-11-27 | Asahi Optical Co Ltd | 内視鏡用処置具 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009523041A (ja) * | 2006-01-12 | 2009-06-18 | マルチ バイオプシー サンプリング カンパニー アーペーエス | 多数のサンプルを採取するサンプリング装置 |
| JP2011206488A (ja) * | 2010-03-30 | 2011-10-20 | Fujifilm Corp | 結紮装置 |
| JP5198683B1 (ja) * | 2012-11-21 | 2013-05-15 | 富士システムズ株式会社 | 電気メス洗浄用水出しチューブ |
| JP5275527B1 (ja) * | 2013-02-05 | 2013-08-28 | 富士システムズ株式会社 | 電気メス洗浄用水出しチューブ |
| JP2014166361A (ja) * | 2014-03-13 | 2014-09-11 | Fujifilm Corp | 結紮装置 |
| WO2017134752A1 (ja) * | 2016-02-02 | 2017-08-10 | オリンパス株式会社 | 内視鏡処置具 |
| JP6216482B1 (ja) * | 2016-02-02 | 2017-10-18 | オリンパス株式会社 | 内視鏡処置具 |
| JP6227204B1 (ja) * | 2016-02-02 | 2017-11-08 | オリンパス株式会社 | 内視鏡処置具 |
| US10973540B2 (en) | 2016-02-02 | 2021-04-13 | Olympus Corporation | Endoscopic surgical device |
| US11207088B2 (en) | 2016-02-02 | 2021-12-28 | Olympus Corporation | Endoscopic surgical device |
| JP2022035058A (ja) * | 2020-08-20 | 2022-03-04 | 株式会社Biomedical Solutions | 生検鉗子 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2007017949A1 (ja) | 2009-02-19 |
| KR20080042813A (ko) | 2008-05-15 |
| EP1913876A1 (en) | 2008-04-23 |
| JP4690410B2 (ja) | 2011-06-01 |
| KR101164286B1 (ko) | 2012-07-09 |
| US20080125809A1 (en) | 2008-05-29 |
| EP1913876A4 (en) | 2009-11-11 |
| US8932323B2 (en) | 2015-01-13 |
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