WO2004012615A1 - 超音波処置具 - Google Patents
超音波処置具 Download PDFInfo
- Publication number
- WO2004012615A1 WO2004012615A1 PCT/JP2003/009810 JP0309810W WO2004012615A1 WO 2004012615 A1 WO2004012615 A1 WO 2004012615A1 JP 0309810 W JP0309810 W JP 0309810W WO 2004012615 A1 WO2004012615 A1 WO 2004012615A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- probe
- component
- living tissue
- ultrasonic
- gripping
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N7/02—Localised ultrasound hyperthermia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/282—Jaws
- A61B2017/2825—Inserts of different material in jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/282—Jaws
- A61B2017/2829—Jaws with a removable cover
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B17/320092—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
- A61B2017/320093—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw additional movable means performing cutting operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B17/320092—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
- A61B2017/320095—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw with sealing or cauterizing means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0813—Accessories designed for easy sterilising, i.e. re-usable
Definitions
- the present invention relates to an ultrasonic treatment instrument for performing treatment such as incision, resection, or coagulation of a living tissue using ultrasonic vibration.
- the ultrasonic treatment instrument has a long insertion portion for insertion into a body cavity, a probe protruding from the distal end of the insertion portion, and a rotatable tip end of the insertion portion in a manner to open and close with respect to the probe. And an end working portion disposed.
- An operation unit for rotating the distal end working unit is provided on the hand side of the ultrasonic treatment instrument.
- the grasping member for grasping the living tissue between the probe and the probe includes an i-th component and a second component.
- the first component is made of a resin that exhibits a low coefficient of friction to the probe and has excellent heat resistance and abrasion resistance, for example, PTFE (polytetrafluoroethylene). It is arranged in the part which does.
- the second component is relatively rigid and highly tough and is formed in a frame shape by using a metal. The second component covers the outer surface of the first component, and includes a support portion with a force member. It is composed of
- an ultrasonic treatment instrument includes a probe that ultrasonically vibrates, a distal end working unit that moves in a manner to open and close the probe by operating an operation unit, and the probe and the distal end working unit.
- a probe that ultrasonically vibrates
- a distal end working unit that moves in a manner to open and close the probe by operating an operation unit
- the probe and the distal end working unit By applying ultrasonic vibration to the probe while grasping the living tissue during the ultrasonic treatment, the distal end working section corresponds to the operation of the operating section.
- a jaw member that can be opened and closed by moving the jaw member, and a gripping member that grips the living tissue between the probe and the probe when the jaw member is closed with respect to the probe.
- the gripping member is formed of a heat-resistant resin material, and is disposed at least in a portion facing the probe; And a second component disposed as a reinforcing member in a state where the second component is exposed to the outer surface of the component and is in close contact with the first component.
- the second invention by filling a filler between the first component and the second component, the first component and It is characterized in that the second components are brought into close contact with each other.
- An ultrasonic treatment device is the ultrasonic treatment device according to any one of the first invention to the third invention, wherein the second component is configured to extend along a direction in which the probe extends. It is a metal material.
- An ultrasonic treatment device is the ultrasonic treatment device according to any one of the first invention to the third invention, wherein the second component includes a portion supported by the jaw member. It is characterized.
- an ultrasonic treatment instrument includes a probe that vibrates ultrasonically, a tip operating portion that moves in a manner to open and close with respect to the probe by operating an operation unit, and the probe and the tip operating portion.
- the probe while holding the living tissue during
- the distal end working unit includes a joe member that opens and closes in response to an operation of the operation unit,
- a gripping member that holds the living tissue between the probe and the probe when the jaw member is closed with respect to the probe, and the gripping member is heat-resistant. It is specially molded from a single resin material having properties.
- FIG. 1 is an external view showing an entire ultrasonic coagulation / incision apparatus to which the ultrasonic treatment device according to the first embodiment is applied
- FIG. 2 is a front view of the ultrasonic coagulation / incision apparatus shown in FIG.
- FIG. 3 is a sectional view taken along line m--m in FIG. 2
- FIG. 4 is a sectional view in FIG.
- Fig. 5 is a cross-sectional view taken along line IV-IV
- Fig. 5 is a cross-sectional side view of an essential part of the ultrasonic coagulation incision apparatus shown in Fig. 1
- Fig. 6 is a cross-sectional view taken along line VI-VI in Fig. 5
- Fig. 7 (a) Fig. 7 is a side view of the probe applied to the ultrasonic coagulation and incision apparatus shown in Fig. 1
- Fig. 7 (b) is a cross-sectional view of the 1 Vn-W spring in Fig. 7 (a)
- Fig. 8 (a) Is a perspective view showing the tip working section, FIG.
- FIG. 9 (b) is an exploded perspective view of the distal end working portion
- FIGS. 9 (a) to 9 (c) are conceptual diagrams sequentially showing the manufacturing process of the gripping member
- FIG. 10 is a diagram showing the second embodiment.
- Fig. 11 is a plan view showing the main part of an ultrasonic coagulation and incision apparatus to which the ultrasonic treatment tool is applied
- Fig. 11 is a cross-sectional side view of the main part of the ultrasonic coagulation and incision apparatus shown in Fig. 10
- Fig. 12 is XII—XII line cross section in FIG. 11
- FIG. 13 (a) is a perspective view showing the tip working section
- FIG. 13 (b) is an exploded perspective view of the tip working section
- FIGS. 14 (a) to 14 (c) are conceptual diagrams sequentially showing the manufacturing process of the gripping member.
- FIG. 1 to FIG. 9 are diagrams illustrating an ultrasonic sound using the ultrasonic treatment device according to the first embodiment of the present invention.
- 1 shows a wave coagulation incision apparatus.
- the ultrasonic coagulation and incision device exemplified here is for performing treatment such as incision, excision, or coagulation of a living tissue using ultrasonic waves. As shown in FIG. 1, vibrations that can be separated from each other are used.
- a unit 100 and a treatment tool unit 100 are provided.
- the vibration unit 10 includes an ultrasonic vibrator 12 serving as an oscillation source inside the vibrator cover 11.
- the ultrasonic vibrator 12 converts an electric signal into mechanical vibration when given an electric signal, for example, like a piezoelectric element.
- the ultrasonic vibrator 12 may be a vibrator that vibrates at a frequency of 20 KHz or more, but in the first embodiment, it vibrates at a frequency of 47 KHz when an electric signal is given. Things are applied.
- the rear end of the vibrating unit 10 (the right end of the vibrating unit 10 in Fig. 1) is connected to the Cape Knole 13.
- a horn 14 and an attachment 15 are provided at the tip of the vibration unit 10 (the left end of the vibration unit 10 in FIG. 5).
- the cape 13 is for applying an electric signal output from a power supply unit (not shown) to the ultrasonic vibrator 12 to vibrate the ultrasonic vibrator 12.
- the horn 14 is attached to the ultrasonic vibrator 12, and is for amplifying and outputting the vibration when the ultrasonic vibrator 12 vibrates.
- the horn 14 has a female screw 16 at the tip.
- the attachment 15 is for detachably connecting the vibration unit 10 to a treatment unit 1.0 described below, and has a mounting ring 17 on the outer periphery of the distal end.
- the mounting ring 17 is a metal annular member, which is not explicitly shown in the figure, but can be elastically deformed in the radial direction by cutting out a part thereof.
- the treatment tool cut 100 includes a probe 110 and a unit main body 120 on which the probe 110 is mounted.
- the probe 110 is a long member having an input part 111, a waveguide part 112 and a treatment part 113, and a male screw part 114 provided on a base end face of the input part 111.
- the horn 14 of the vibration unit 10 is screwed into the female thread 16 of the horn 14. It is detachably attached to.
- the probe 110 is formed of a biocompatible metal material, for example, a titanium alloy.
- the total length of the probe 110 is formed to be a length obtained by integrally multiplying a half wavelength of the vibration by the ultrasonic transducer 12.
- the input portion 111 of the probe 110 is a relatively large cylindrical portion having a flange portion 115 at its distal end.
- the flange portion 115 is a large-diameter portion formed on the outer peripheral portion at a position that becomes a node of vibration on the most proximal side when the ultrasonic vibrator 12 vibrates.
- a plurality of flat portions 115a can be provided on the outer peripheral surface of the flange portion 115.
- the waveguide section 112 of the probe 110 is a long columnar section having a smaller diameter than the input section 111, and the tapered section 1 16
- the input section is connected to the end of 1 1 1 through 1.
- small-diameter sections 117 are formed at several positions where the ultrasonic vibrator 12 vibrates when it vibrates, and the vibration vibrating node 1 Rubber rings 1 1 8 are attached to several places.
- the small-diameter portion 117 is a portion having a reduced cross-sectional area so that a desired amplitude can be obtained in the treatment portion 113 when the ultrasonic vibrator 12 vibrates.
- the rubber ring 118 is interposed between the waveguide portion 112 and an insertion portion 160 described later to prevent mutual interference between the waveguide portion 112 and the insertion portion 160. It is.
- the treatment section 113 of the probe 110 is a portion that directly contacts a living tissue such as a blood vessel, has a uniform outer diameter, and has a cylindrical shape having a small diameter and extending linearly. It is formed.
- the unit main body 120 has a cylindrical shape with both ends opened, and an outer connection member 122 and an inner connection member are provided at the inner peripheral portion of the base end opening. 1 and 2, and an operation unit 130 on the outer peripheral portion at the center.
- the outer connecting member 1 2 1 and the inner connecting member 1 2 2 It is attached to the unit main body 120 so as to form an annular groove for accommodating the attachment 15 and the mounting ring 17.
- the outer connection member 122 has a ridge 121 a on the inner peripheral surface on the base end side. This ridge 12a restricts the passage of the mounting ring 17 when it is in a normal state, but has an inner diameter that allows the passage when the mounting ring 17 is reduced in diameter by elastic deformation. ing.
- the operation section 130 is a section that is operated by an operator when treating living tissue, and includes a fixed handle 13 1 and a movable handle. Handle 1 32 is provided.
- the fixed handle 13 1 extends radially outward from the unit 1 and the main body 120, and has a fixed-side finger hook 13 1 a at the extending end thereof. It is configured integrally with the main unit 120.
- the movable handle 132 has a movable finger hook 132a at the base end, and a pin insertion hole 132b at the bifurcated distal end.
- the movable handle 1332 is rotated with respect to the unit main body 120 by attaching a fulcrum pin 133 to the unit main body 120 through the respective pin insertion holes 133b. Mounted as possible. As shown in FIG.
- a resin bush made of PTFE or the like having a low friction coefficient is used around the fulcrum pin 133 for the purpose of improving sliding performance with the movable handle 132.
- 3 4 is interposed.
- the movable handle 13 2 is provided with an action pin 13 5 at a position closer to the base end than the fulcrum pin 13 3.
- These working pins 1 35 have their respective tips projecting into the unit main body 120 through working grooves 120 a provided in the unit main body 120.
- the fixed-side finger hook 13 1 a and the movable-side finger hook 13 2 a have fingers respectively.
- the working pin 135 moves the working groove 120a of the unit main body 120 along the axial direction with the rotation of the movable handle 132.
- the jet main body 120 is provided with a drive mechanism 140 therein.
- the driving mechanism 140 is arranged on the outer periphery of the probe 110 when the vibration unit 10 is mounted on the unit main body 120 while the probe 110 is mounted on the horn 14.
- the connecting member 141 is attached to the opening at the tip end of the unit main body 120 via a fixing ring 146, and can rotate around the axis with respect to the unit main body 120.
- the connecting member 141 has a cylindrical shape whose outer diameter increases stepwise toward the proximal end, and the connecting member 144 1 extends in the axial direction at the position closest to the proximal end. It has an elongated hole 1441a along it.
- the connecting member 141 has a rotating knob 147 for rotating operation attached to an outer peripheral portion of a portion protruding from the tip of the unit main body 120.
- the pipe fixing member 14 2 has a cylindrical shape and is attached to the inner peripheral surface of the distal end of the connecting member 14 1 via the fixing pin 14 2 a, and can rotate together with the connecting member 14 1. It is.
- the driving force transmitting member 144 is provided on the inner peripheral surface of the base end of the connecting member 141, and can slide along the axial direction of the connecting member 141.
- the driving force transmitting member 1443 has an engaging pin 144a on the outer peripheral surface thereof, and the engaging pin 144a is connected to the long hole 144a of the connecting member 141. By making the connection, it is possible to rotate integrally with the connecting member 141.
- a packing 144b for securing airtightness with the inner peripheral surface of the connecting member 141 is attached to an outer peripheral portion of the driving force transmitting member 144. The packing 144b serves to prevent gas and insufflation gas from leaking out during laparoscopic surgery, for example.
- the pipe fixing member 142 and the driving force transmitting member 143 are provided with interference prevention rings 142b and 143c on their respective inner peripheral surfaces.
- the interference prevention rings 142b and 143c are attached to the pipe fixing member 142 and the driving force transmitting member 143 in order to prevent the probe 110 from directly contacting the pipe fixing member 142 and the driving force transmitting member 143. is there.
- the anti-interference rings 142b and 143c for example, those formed of a resin having a low friction coefficient such as PTFE are applied.
- the slide receiving member 144 is formed in a cylindrical shape having a flange-shaped receiving portion 144a at a base end thereof, and is connected to a base end of the driving force transmitting member 143 by a connecting pin 144b. As shown in FIG. 6, the base end of the slide receiving member 144 has a deformed hole shape having flat portions 144c at two locations on the inner surface facing each other.
- the slider receiving member 144 has a slider 148 and a coil spring 149 provided on the outer periphery thereof.
- the slider 148 has an annular shape that fits around the outer periphery of the slide receiving member 144, and can move along the axial direction of the slide receiving member 144. It is.
- the slider 148 is provided with an engagement groove 148a on its outer periphery. The distal end of a working pin 135 projecting into the unit body 120 via the working groove 120a is engaged with the engaging groove 148a.
- the coil spring 149 is a compression spring interposed between the base end surface of the driving force transmitting member 143 and the front end surface of the slider 148.
- the coil spring 149 normally moves the slider 148 to the proximal end side in the normal state, and holds the slider 148 in a state in which the proximal end surface of the slider 148 is in contact with the receiving portion 144 a of the slide receiving member 144.
- the driving force transmitting member 143 is pressed toward the distal end with a constant panel force.
- the contact member 145 is a conductive tubular member having a distal end portion having an outer shape corresponding to the flat portion 144c of the slide receiving member 144. The distal end portion is fitted to the base end portion of the slide receiving member 144. It is arranged in the state where it was set.
- This contact member 145 It is arranged at a position covering the outer peripheral portion of the input portion 111 in o, and its inner peripheral surface is configured to fit the flange portion 115 of the probe 110.
- the elastic piece 144a is formed by forming a slit (not shown) in the base end of the contact member 144 along the axial direction, and a protrusion 144 is formed at each free end. has b.
- the protruding portion 145 b is configured such that its outer diameter is larger than the inner diameter of the inner connecting member 122.
- the contact member 1 45 is rotated with respect to the inner connecting member 1 2 2 by engaging the projection 1 4 5 b with the annular groove 1 2 2 a formed on the inner peripheral surface of the inner connecting member 1 2 2. Possible and axial movement is restricted.
- connection rubber 150 formed by a conductive rubber is attached to the tip of the contact member 144.
- the connection rubber 150 is for securing electrical connection with the probe 110, and is provided on the outer peripheral surface of the probe 110 near a position where the probe 110 becomes a node of vibration. We are in pressure contact.
- the outer part j of the connection rubber 150 is provided with a projection 150a for ensuring airtightness with the inner peripheral surface of the slide receiving member 144.
- the projection 150a of the connecting rubber 150 functions to prevent the insufflation gas from leaking to the outside during laparoscopic surgery, for example.
- Reference numeral 151 in FIG. 5 denotes a high-frequency connection pin provided on the unit main body 120.
- the high-frequency connection pin 15 1 is for connecting an active cord for supplying a high-frequency current from a high-frequency ablation power supply device, and is electrically connected to the internal connection member 1 2 2. It is attached to the base end of the unit main body 120 as shown.
- an insulating member 152 is attached at the base end of the high-frequency connection pin 151 in order to secure electrical safety with the active cord attached.
- the drive mechanism 140 having such a configuration, when the rotation knob 144 is rotated, the connection member 141, the pipe fixing member 144, and the driving force transmission member 144 are interlocked with this rotation.
- the treatment instrument unit 100 includes an insertion portion 160 on the distal end side of the unit main body 120.
- the insertion portion 160 is a long thin portion inserted into the body cavity of the viewer during laparoscopic surgery, and has an outer pipe 1 having a double structure. It has 6 1 and inner pipe 16 2.
- the outer pipe 161 extends from the tip of the rotary knob 147 to the inside thereof, and the base end thereof is fixed to the inner peripheral surface of the pipe fixing member 144. .
- the outer peripheral surface of the outer pipe 161 is covered with an insulating tube 163.
- the inner pipe 16 2 forms a channel through which the waveguide section 112 and the treatment section 113 of the probe 110 pass.
- the above-described rubber ring 118 is interposed between the inner pipe 162 and the waveguide portion 112.
- a distal end cover 1664 is attached to the distal end of the outer pipe 161 of the inlet 160.
- the tip cover 16 4 allows the probe 11 to pass through the holding member 16 5.
- the vibration unit 10 is connected to the unit body 1. It is provided at a position where the treatment section 113 of the probe 110 can be exposed to the outside from the tip when it is mounted on the probe 20. .
- the distal end cover 164 is provided with a distal end working portion 170.
- the distal end working portion 170 holds a living tissue between the treatment portion 113 of the probe 110 and the living body tissue.
- the tip working portion 170 includes a joint member 17010 and a holding member 1720. I have.
- the joint member 17010 is formed of a metal having biocompatibility and desired oka IJ properties and toughness, for example, stainless steel. As shown in FIG. 8 (b), has a distal bearing portion 1 7 1 1 bifurcated. As shown in FIG. 4, the joint member 1.710 has its proximal end attached to the distal end cover 164 by two right and left rotation support pins 1712 arranged coaxially, and the extending direction of the insertion portion 160. It is possible to rotate around an axis that is perpendicular to the axis. A link pin 1713 is attached to the joint member 1710.
- the link pin 1713 is disposed at an eccentric position avoiding the rotation support pin 1712 along the axial direction of the rotation support pin 1712, and the tip of the drive link 1730 is connected.
- the drive link 1730 extends inside the insertion portion 160 along a channel provided between the outer pipe 161 and the inner pipe 162, and as shown in FIG. Are connected to the driving force transmitting member 143 via the
- the gripping member 1720 is a portion that is in direct contact with a living tissue such as a blood vessel between the treatment portion 113 of the probe 110 and includes a first component 1721 and a second component 1722.
- the first component portion 1721 has a holding portion 1721a facing the treatment portion 113 of the probe 110 and a tip bearing portion 1721b mounted between the tip support portion 1711 of the joint member 1710. It has a low coefficient of friction with the probe 110 and is molded integrally with a resin with excellent heat resistance (about 170 ° C) and abrasion resistance, such as PTF E and PFA (perfluoroalkoxyl alkane). is there.
- the holding portion 1721a has a curved concave groove corresponding to the treatment section 113 of the probe 110 at the center portion, and is located at a position on the ⁇ side of the concave groove. It has a serrated uneven portion.
- the second component 1722 is formed of a metal having high rigidity and toughness with respect to PTFE and PFA, for example, stainless steel, and is embedded as a reinforcing material inside the first component 1721.
- the second component 1722 extends to a portion that is almost the entire length of the first component 1721, and has a portion corresponding to the distal end bearing portion 1721b of the first component 1721.
- the entire outer surface of the second component 1722 is covered by the first component 1721, and there is no portion exposed to the outside.
- This gripping member 1720 is provided with a tip bearing portion 1721 b at the tip of the joint member 1710. With the bearing pin 17 1 1 attached between the bearings 17 1 11 and 17 2 1 b and the 2nd component 17 2 2 Thereby, it is supported so as to be tiltable about an axis perpendicular to the extending direction of the insertion portion 160.
- the gripping member 1720 described above can be formed by insert molding the first component part 1721 around the second component part 1722. It can be obtained easily.
- the method shown in Fig. 9 may be used. That is, first, as shown in FIG. 9 (a), the second component part 1722 formed into a desired shape, the base part 1721A and the lid part 17 formed by PTFE. Prepare 2 1 B.
- the base 1 7 2 1 A is formed in a rectangular shape sufficient to form the lower half of the first component 1 7 2 1
- the lid 1 7 2 1 B is the first component 1 It is formed into a rectangular shape sufficient to form the upper half of 7 2 1.
- the lid 1721B is attached to the base 1721A. They are joined together to form a coarse material welded between them by heat. .
- the fingers When grasping a living tissue, the fingers are hung on the fixed-side finger hooks 13 1 a and the movable-side finger hooks 13 2 a, respectively.
- the driving force transmitting member 144 moves forward and backward along the axial direction when the slider 144 engaged with 5 moves along the axial direction.
- the reciprocating movement of the driving force transmitting member 14 3 is transmitted to the joint member 17 10 as the reciprocating movement of the drive link 17 30, and the joint member 17 10 is rotated by the rotation support pin 17.
- the gripping member 1720 opens and closes with respect to the treatment section 113 of the probe 110. As a result, a living tissue such as a blood vessel can be grasped between the treatment section 113 of the probe 110 and the grasping member 17020.
- the coil spring 149 is interposed between the driving force transmitting member 144 and the slider 148, any operation can be performed on the movable handle 132. Even when a force is applied, the driving force transmitting member 144 can be pressed toward the distal end by the panel force of the coil spring 149, and the jaw member 170 can be pressed with a constant force. It will be closed. Furthermore, the gripping member 1720 can be tilted around the axis of the support pin 170 with respect to the jaw member 170 that moves in the open / close manner in response to the operation of the operating section 130. Therefore, treatment can be performed by applying a uniform gripping force over the entire length of the living tissue.
- the support pin 1 is set so that the grasping member 1702 follows the deflection of the probe 110. Since it tilts around the axis of 740, it is possible to always apply a uniform gripping force to the living tissue. Therefore, if the ultrasonic vibrator 12 of the vibrating unit 10 is vibrated while grasping the living tissue, the treatment section 113 of the probe 110 is ultrasonically vibrated, and a living body such as a blood vessel is detected. It will be possible to apply a constant force to the tissue constantly to perform treatments such as coagulation and incision.
- the second component 1722 of the gripping member 1720 serving as a reinforcing material is completely embedded in the first component 1721, thereby providing a simple structure. It has an outer shape and there is no gap between the first component part 1721 and the second component part.There is no gap between the first component part and the second component part. Cleaning can be performed easily. As a result, it is easy to reuse the treatment unit 1 • 0 in the ultrasonic coagulation and incision apparatus, which can contribute to a reduction in environmental load and a reduction in operation costs.
- the shapes of the jaw member 170 and the gripping member 170 in the distal end working portion 170 are not necessarily limited to those described in the first embodiment, and may be, for example, a curved shape. It may be present.
- the second component 1722 is configured to include a portion supported by the jaw member 1710 in the gripping member 1720, but the second component 172 is not necessarily required. It is not necessary that 2 2 include a portion supported by the jaw member 17 10, and a gripping member 1 7 2 consisting only of the first component 1 7 2 1 without requiring the second component 1 7 2 2 0 may be applied.
- FIGS. 10 to 14 show an ultrasonic coagulation and incision apparatus to which the ultrasonic treatment device according to the second embodiment of the present invention is applied.
- the ultrasonic coagulation and incision device exemplified here is for performing treatment such as incision, excision, or coagulation of a living tissue using ultrasonic waves, similarly to the ultrasonic coagulation and incision device described in Embodiment 1.
- the second embodiment is different from the first embodiment only in the configuration of the gripping member in the distal end working portion.
- the second component 272 formed of metal is the first component formed of PTFE or PFA. It is arranged so as to be exposed on the outer surface of the part 2721.
- the first component part 2 7 2 1 is between the holding section 2 7 2 1 a facing the treatment section 1 13 of the probe 1 10 and the tip support section 1 7 1 1 of the jaw member 1 7 10 It has a tip bearing part 27 2 lb to be attached to the.
- a coloring marker 2721c is embedded in the peripheral thickness region of the first component portion 2721.
- the coloring marker 2721c appears outside when the first component part 2721 is worn out, and informs the user of the limit of use.
- the second component 272 2 2 is disposed on both sides of the tip bearing portion 272 1 b in the first component 272 1, and extends to a portion that is almost the entire length of the first component 272 1. Are there.
- the gripping member 2720 is formed by joining the tip end bearing portion 2721b of the first component portion 2721 and the second component portion 2722 with a joint member 1727.
- 10 tip support The bearing pin 1 7 4 0 is inserted between the tip support 1 7 1 1, the second component 2 7 2 2, and the tip bearing 2 7 2 1 b while mounted between 1 7 1 1 Thereby, it is supported so as to be tiltable around an axis perpendicular to the extending direction of the insertion portion 160.
- the gripping member 2720 of the second embodiment described above has a structure in which, when PFA is applied as the first component 2272, the first component 2727 is inside the second component 2722. Outsert molding may be used. In this case, when the first component 272 1 is outsert molded, the first component 272 1 and the second component 272 2 are in close contact with each other. There is no gap between the two.
- the shape of the first component part 272 1 is cut out from a rectangular PTFE material 272 1 ′.
- the adhesive 272 may be made of any of silicone, rubber, resin, etc., but it has heat resistance and is resistant to sterilization. Is preferred.
- a gripping member 270 of a desired shape can be obtained as shown in FIG. 14 (c). It is preferable that the adhesive 272 is formed so that the exposed portion is continuous with the outer surfaces of the first component 272 and the second component 272, so that there is no step. Note that the above-mentioned coloring marker 2721c is embedded in the first component portion 2721 by filling the above-mentioned adhesive 2723. May be.
- the first component part 272 1 and the second component part 272 2 can be brought into close contact with the adhesive serving as a filler, and the gripping member 272 0 is formed. No gap is created between the two.
- the coil spring 1449 is interposed between the driving force transmission member 144 and the slider 1488. Therefore, no matter what operating force is applied to the movable handle 13 2, the driving force transmitting member 14 3 can be pressed toward the distal end by the spring force of the coil spring 14 9, and the jaw member 1710 will be closed with a constant force. Further, the gripping member 2720 can be tilted about the axis of the support pin 1704 with respect to the jaw member 1710 that moves in the open / close manner in response to the operation of the operating section 130. The treatment can be performed by applying a uniform gripping force over the entire length of the living tissue.
- the support pin is used so that the gripping member 2720 follows the deflection of the probe 110. Since it tilts around the axis of 1740, it is possible to always apply a uniform gripping force to the living tissue.
- the ultrasonic vibrator 12 of the vibrating unit 10 is vibrated while grasping the living tissue, the treatment section 113 of the probe 110 is ultrasonically vibrated, and a living body such as a blood vessel is detected. Coagulation, incision, and other procedures can be performed by constantly applying a constant force to the tissue.
- the ultrasonic coagulation and incision apparatus even if the force is formed by any of the above-described methods, the first component portion 272 and the second component portion 27 22 is closely adhered to and no gap is formed between them, so that even when dirt such as blood adheres, reliable washing can be easily performed in a short time. As a result, the ultrasonic coagulation and incision device can be easily reused, which contributes to reducing the burden on the environment and reducing the operation cost.
- the second component part 272 is configured so as to include a portion supported by the joint member 171 in the gripping member 270, but the second component part 207 is not necessarily required. It is not necessary that 22 include a portion supported by the joint member 1710. Furthermore, was the application of the adhesive 2 7 2 3 having an adhesive function as a filler, it is not always necessary to use the one having an adhesive function. Industrial applicability
- a probe that oscillates ultrasonically, a tip operating portion that moves in a manner that opens and closes the probe by operating the operating portion, and between the probe and the tip operating portion.
- the probe is suitable for an ultrasonic treatment for performing a desired treatment on the living tissue.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03766699.7A EP1433428B1 (en) | 2002-08-02 | 2003-08-01 | Ultrasonic treatment apparatus |
JP2004525817A JP4388475B2 (ja) | 2002-08-02 | 2003-08-01 | 超音波処置具 |
US10/815,424 US7264618B2 (en) | 2002-08-02 | 2004-04-01 | Ultrasonic treatment apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002226303 | 2002-08-02 | ||
JP2002-226303 | 2002-08-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/815,424 Continuation US7264618B2 (en) | 2002-08-02 | 2004-04-01 | Ultrasonic treatment apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004012615A1 true WO2004012615A1 (ja) | 2004-02-12 |
Family
ID=31492183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/009810 WO2004012615A1 (ja) | 2002-08-02 | 2003-08-01 | 超音波処置具 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7264618B2 (ja) |
EP (1) | EP1433428B1 (ja) |
JP (1) | JP4388475B2 (ja) |
WO (1) | WO2004012615A1 (ja) |
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Also Published As
Publication number | Publication date |
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EP1433428B1 (en) | 2013-10-02 |
EP1433428A1 (en) | 2004-06-30 |
US7264618B2 (en) | 2007-09-04 |
JP4388475B2 (ja) | 2009-12-24 |
US20040186463A1 (en) | 2004-09-23 |
JPWO2004012615A1 (ja) | 2006-04-27 |
EP1433428A4 (en) | 2010-04-21 |
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