JP2007275624A - Instrument for medical treatment and endoscope, system for endoscopic medical treatment and endoscope system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an instrument for medical treatment and an endoscope, a system for endoscopic medical treatment in which the operating section of the instrument for medical treatment can be fixed to the endoscope when an endoscope operator operates the instrument for medical treatment, and electric power can be supplied to the operating section of the instrument for medical treatment. <P>SOLUTION: The system is equipped with a flexible inserting part, the operating section 75 for operating the inserting part, a channel into which the instrument for medical treatment can be inserted, and a supporting member 55 for detachably mounting the operating section of the instrument for medical treatment on the operating section. The supporting member 55 has an electrical contact 57 and this electrical contact is connected to an outside power-supply unit 73 through a wiring 76 arranged in the supporting member and the operating section. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a treatment tool, an endoscope, and an endoscope treatment system endoscope system.

When performing a procedure using a treatment tool together with an endoscope, the treatment tool is operated by an assistant other than the operator who operates the endoscope. Therefore, the operator can operate the treatment tool, and an open / close unit that stores and holds the handle of the treatment tool and is electrically operated can be detachably attached to the endoscope operation unit (for example, a patent Reference 1)), and a treatment tool operation part that can be fixed to a treatment tool operation auxiliary tool that is detachable from an operation part of an endoscope (for example, see Patent Document 2) have been proposed.
Japanese Unexamined Patent Publication No. 2000-207 (FIGS. 6 and 8) JP 2002-330973 A (FIG. 24)

However, in the case where the fixing means for fixing the treatment tool operation unit is attached to the endoscope as in the above-described conventional technique, it takes time and effort to attach. In addition, if it is not detachable and is integrated with the endoscope from the beginning, it may be in the way of an inspection or the like that does not use a treatment instrument. In the case of the technique described in Patent Document 1, since the treatment instrument operation unit is operated by electricity, the treatment instrument operation unit is stored and held, and manual operation cannot be performed.
Furthermore, even if it is detachable, there is no degree of freedom of the treatment instrument operation portion after attachment, and it is difficult to increase or decrease the force during operation.

  The present invention has been made in view of the above circumstances, and when the operation of the treatment tool is performed by an operator of the endoscope, the treatment tool operation unit can be easily fixed to the endoscope, and the operation of the treatment tool It is an object of the present invention to provide a treatment tool, an endoscope, an endoscope treatment system, and an endoscope system that can supply power to a section.

The present invention employs the following means in order to solve the above problems.
An endoscope according to the present invention includes a flexible insertion portion, an operation portion for operating the insertion portion, a channel through which a treatment tool can be inserted, and a treatment tool operation of the treatment tool with respect to the operation portion. A support member for detachably mounting the part, the support member has an electrical contact, and the electrical contact is connected to an external power supply device by wiring arranged in the support member and the operation unit. It is characterized by being.

  A treatment instrument according to the present invention includes a flexible treatment instrument insertion section, a treatment section connected to a distal end of the treatment instrument insertion section, and a proximal end of the treatment section insertion section. A treatment instrument operating section to be operated is provided, and a connection section connectable to the electrical contact of the endoscope according to claim 1 is provided in the treatment instrument operation section.

  An endoscope treatment instrument system according to the present invention includes the endoscope according to claim 1 and the treatment instrument according to claim 2.

In the endoscope treatment instrument system according to the present invention, the treatment instrument includes an operation wire for connecting the treatment section and the treatment instrument operation section, and the connection section separates the operation wire from the electrical contact. The support member can be engaged at either the first position or the second position where the operation wire and the electrical contact are in contact with each other.

  An endoscope system according to the present invention includes an endoscope, a treatment instrument to be inserted into the endoscope, a treatment instrument side electrical connector provided in the treatment instrument, and the endoscope. An endoscope-side electrical connector that can be connected to a treatment instrument-side electrical connector, and an external power source that is electrically connected to the endoscope-side electrical connector are provided.

  According to the present invention, when the operation of the treatment tool is performed by the operator of the endoscope, the treatment tool operation unit can be easily fixed to the endoscope, and the endoscope operator can stably operate the treatment tool. Can be done in the state. In addition, it is possible to supply power to the treatment instrument operation unit. Therefore, for example, a high-frequency treatment instrument can be operated in a stable state by being fixed to the operation unit of the endoscope.

Before describing the present invention, a first reference embodiment as a prerequisite technology of the present invention will be described with reference to FIGS.
As shown in FIG. 1, an endoscope treatment system 1 according to this reference embodiment includes a treatment instrument insertion portion 2 having flexibility, a treatment section 3 connected to the distal end of the treatment instrument insertion portion 2, and a treatment instrument. A treatment tool 6 such as a biopsy forceps having a treatment tool operation part 5 connected to the proximal end of the insertion part 2 and operating the treatment part 3, and a flexible insertion part 7 as shown in FIG. An endoscope 12 having an operation unit 8, a channel 10 through which the treatment tool 6 can be inserted, and a support member 11 that detachably attaches the treatment tool operation unit 5 of the treatment tool 6 to the operation unit 8. ing.

The support member 11 is provided so as to be extendable and retractable from the forceps port 13 disposed in the operation unit 8 toward the insertion unit 7, and is stored in the operation unit 8 when the treatment tool operation unit 5 is not attached. When the tool operating unit 5 is mounted, the tool operating unit 5 protrudes from the operating unit 8.
An engaging portion (engaging means) 15 for connecting the treatment instrument operation portion 5 is disposed at the distal end of the support member 11. As shown in FIG. 3, the connection portion 16 disposed on the treatment instrument operation portion 5. It is supposed to be removable.
As shown in FIG. 4, the engaging portion 15 is formed in a columnar shape and includes a rectangular fitting hole 18 in which an engaging groove 17 that can be engaged with a jaw portion 22 described later is formed.

  As shown in FIG. 5, the connection portion 16 is formed in a box shape and can be fitted into the fitting hole 18, and a jaw portion 22 is formed at one end 21, and is arranged in the connection body 20. The pair of hooks 25 and 26 pivotally supported on the pivot shaft 23 in the same direction, and the other end 27 of the pair of hooks 25 and 26 and the connection body 20 are connected, and the jaw 22 is connected to the connection body. A spring 28 that urges the pair of hooks 25 and 26 in a direction to protrude outwardly of 20 and a side surface 20A and 20B of the connection body 20 that are movable in a direction parallel to the pivot shaft 23. A pair of buttons 30 and 31 capable of rotating each of 25 and 26 about the pivot shaft 23 are provided.

  A protrusion hole 32 through which the jaws 22 of the pair of hooks 25 and 26 can protrude is formed on one side surface 20C of the connection body 20 that faces the engagement groove 17 when the connection body 20 is attached to the engagement portion 15. Has been.

The pair of hooks 25, 26 has an inclined portion 36 on the other end 27 side where the central axis from one end 21 to the pivot shaft 23 and the central axis from the pivot shaft 23 to the other end 27 intersect and bend. The slant portion 36 is in contact with the pair of buttons 30 and 31.
The pair of buttons 30, 31 are arranged at positions facing the spring 28 across the pair of hooks 25, 26, and one side surface 37 that contacts the oblique portion 36 from the center of the connection main body 20 toward the outside, It is formed in a tapered shape so as to be gradually separated from the opposite other side surface 38 and is movable with respect to the pivot shaft 23.

Next, the operation method, action, and effect of the treatment tool 6, the endoscope 12, and the endoscope treatment system 1 according to the first reference embodiment will be described.
First, after the treatment instrument insertion portion 2 of the treatment instrument 6 is inserted into the forceps port 13 to a predetermined position, the support member 11 is extended and projected as shown in FIG.
Then, the treatment tool 6 is attached to the support member 11. At this time, the jaw 22 and the engagement groove 17 are opposed to each other, and the connection main body 20 of the connection portion 16 is fitted into the fitting hole 18 of the engagement portion 15.

At this time, the jaw portion 22 is temporarily immersed in the projection hole 32 by pressing from the wall surface of the fitting hole 18, and at the same time, the oblique portion 36 moves in a direction to contract the spring 28 and a pair of pivots around the pivot shaft 23. The hooks 25 and 26 rotate respectively.
When the jaw 22 reaches the position of the engagement groove 17, the pressing force from the wall surface of the fitting hole 18 disappears, so that the spring 28 is restored and the pair of hooks 25, 26 are reversed around the pivot shaft 23. By rotating in the direction, the jaw portion 22 is engaged with the engagement groove 17, and the connection main body 20 of the connection portion 16 and the engagement portion 15 of the treatment instrument operation portion 5 are connected. Thus, the treatment tool 6 is attached to the support member 11.

When removing the treatment tool 6 from the support member 11, the pair of buttons 30 and 31 are pushed into the connection body 20.
At this time, as shown in FIG. 7, the oblique portions 36 of the pair of hooks 25, 26 move in the direction in which the spring 28 is contracted, and accordingly, the jaw portion 22 is immersed in the projection hole 32, and the jaw portion 22 is inserted. And the engagement groove 17 are released.
In this state, the connection main body 20 is taken out from the fitting hole 18, the connection portion 16 and the engagement portion 15 are detached, and the treatment tool 6 is removed from the support member 11.

  According to the treatment tool 6, the endoscope 12, and the endoscope treatment system 1, only when the treatment tool 6 is used, the support member 11 of the endoscope 12 is protruded from the operation unit 8 and the treatment tool operation unit 5. The connecting portion 16 can be attached, and a stable operation can be performed with the treatment instrument operation portion 5 fixed to the operation portion 8. Further, when the treatment tool 6 is not used, the treatment tool 6 is removed from the support member 11 and the support member 11 is stored in the operation unit 8 so as not to obstruct the operation of the endoscope 12. it can. Therefore, the operator of the endoscope 12 can operate the treatment tool 6 in a stable state.

Next, a second reference embodiment will be described with reference to FIGS.
In addition, the same code | symbol is attached | subjected to the component similar to the 1st reference form mentioned above, and description is abbreviate | omitted.

  The difference between the second reference form and the first reference form is that the support member 41 of the endoscope 40 according to this reference form is formed in a rod shape and can be folded as shown in FIGS. It is provided and the engaging portion 42 is a luer lock mechanism.

The support member 41 is rotatably disposed on the operation unit 51 via the ball joint unit 50, and is normally folded in a direction along the insertion unit 7 to be stored.
The engaging portion 42 is a luer lock connector (male) 43 similar to the taper of the syringe barrel whose outer diameter is gradually reduced toward the tip, and as shown in FIGS. In the treatment instrument operating portion 46 of the treatment instrument 45 such as a basket-type grasping forceps, a luer lock connector (female) 47 to which the taper of the syringe barrel can be connected is formed on the inner peripheral surface from the open end toward the proximal end. (Connection part) 48 is arranged.

Next, an operation method, an operation and an effect of the treatment tool 45, the endoscope 40, and the endoscope treatment system 52 including these according to the second reference embodiment will be described.
First, similarly to the first reference embodiment, after the treatment instrument insertion portion 2 is inserted into the forceps port 13, the treatment instrument 45 is attached to the support member 41.

At this time, the support member 41 folded and accommodated along the insertion portion 7 is rotated around the ball joint portion 50 and is erected from the operation portion 51.
Then, the luer lock connectors 43 and 47 are attached and the treatment tool 45 is attached to the support member 41 by inserting the engaging portion 42 into the base 48 and press-contacting it.
According to the treatment tool 45, the endoscope 40, and the endoscope treatment system 52, the luer lock connectors 43 and 47 allow the operation part 51 of the endoscope 40 and the treatment tool operation part 46 to be fitted and detached. The treatment tool 45 and the endoscope 40 can be attached and detached more easily.

Next, an embodiment of the present invention will be described with reference to FIGS.
In addition, the same code | symbol is attached | subjected to the component similar to the 1st reference form mentioned above, and description is abbreviate | omitted.
The difference between this embodiment and the first reference embodiment is that the engaging portion 56 of the support member 55 of the endoscope 53 according to this embodiment has an electrical contact 57, and a biopsy forceps as shown in FIG. A first connection part (connection part) 61 arranged in the treatment tool operation part 60 of the non-high-frequency treatment tool (treatment tool) 58 and the like, and a high-frequency treatment tool (treatment tool) such as a high-frequency snare as shown in FIG. It is possible to connect to both the second connection part (connection part) 65 arranged in the treatment instrument operation part 63 of 62.

As shown in FIG. 14, the first connecting portion 61 and the second connecting portion 65 have substantially the same height, and the inner diameter of the first connecting portion 61 is the inner diameter of the second connecting portion 65. It is formed in a smaller cylindrical shape, and is arranged so as to protrude from the treatment instrument operation portions 60 and 63 in a direction intersecting with the operation wire 66.
The first connecting portion 61 is provided with a first convex portion 67 formed to project radially inward along the circumferential direction of the inner peripheral surface on the base end 61a side.
The second connecting portion 65 is provided with a second convex portion 68 formed to project radially inward along the circumferential direction of the inner peripheral surface on the opening 65a side.
The first connection portion 61 can be engaged with the support member 55 at a first position 70 where the operation wire 66 and the electrical contact 57 are separated from each other. The second connection portion 65 has the electrical contact 57 connected to the operation wire 66. The support member 55 can be engaged with the second position 71 in contact.
That is, the second connection portion 65 and the operation wire 66 constitute a treatment instrument side electrical connector, and an engagement portion 56 described later is an endoscope side electrical connector that can be connected to the treatment instrument side electrical connector. Configure.

As shown in FIG. 15, the endoscope 53 is connected to a light source device 72 and a high-frequency power source (power supply device) 73, and an electrical contact 57 is a wiring cable disposed in the support member 55 and the operation unit 75. (Wiring) 76 is connected to the high frequency power source 73. The support member 55 is extendable and retractable as in the first reference embodiment. As shown in FIG. 16, the engaging portion 56 includes an electrical contact 57, a cylindrical body 77 formed in a cylindrical shape, A shaft member 78 disposed in the tube portion main body 77 and having a distal end protruding from the tube portion main body 77 and connected to the electrical contact 57, and a first large diameter disposed on the base end of the shaft member 78 and bonded to the wiring cable 76. A portion 80, a second large-diameter portion 81 formed at a predetermined interval from the first large-diameter portion 80 toward the electrical contact 57 side, a partition member 87 and a second large-diameter portion 81 described later And a spring 82 disposed between the two.
The electrical contact 57 is formed to be curved along the outer peripheral surface of the operation wire 66 so as to be contactable.

The cylinder main body 77 is arranged on the electric contact 57 side and can be fitted to the first connecting part 61 and can be fitted to the first connecting part 61, and can be fitted to the second connecting part 65 arranged on the support member 55 side. A second cylindrical portion 85, the outer diameter of the first cylindrical portion 83 is smaller than the outer diameter of the second cylindrical portion 85, and the boundary between the two is defined as the first position 70. ing. In addition, a partition member 87 in which a through hole 86 capable of penetrating the shaft member 78 is formed between the first large-diameter portion 80 and the second large-diameter portion 81 is disposed inside the cylindrical body 77. Yes. The height of the first cylindrical portion 83 is set such that the electrical contact does not come into contact with the operation wire 66 even if the tip 61b of the first connecting portion 61 is fitted to the first position 70. .
The height of the cylindrical body 77 is such that the electrical contact 57 is pressed against the operation wire 66 by the spring 82 when the tip 65a of the second connection portion 65 is locked at the second position 71. Is formed.
As shown in FIG. 17, the first cylindrical portion 83 is provided with a first concave portion 88 formed to be engageable with the first convex portion 67, and similarly, the second cylindrical portion 85. A second concave portion 90 formed so as to be engageable with the second convex portion 68 is disposed on the outer peripheral surface of the second convex portion 68.

Next, an operation method of the non-high-frequency treatment tool 58, the high-frequency treatment tool 62, the endoscope 53, and the endoscope treatment system 91 including these according to the present embodiment will be described.
First, when the non-high-frequency treatment instrument 58 is used, the support member 55 is extended and erected in the same manner as in the first reference embodiment.
Then, until the tip 61b of the first connecting portion 61 is locked at the first position 70, the first cylindrical portion 83 and the first connecting portion 61 are fitted to each other and the first convex portion 67 and the first connecting portion 61 are fitted. The recess 88 is engaged. At this time, as shown in FIG. 18A, the electrical contact 57 is separated from the operation wire 66 and is not in contact, and the treatment instrument operation unit 60 is attached to the support member 55.

When the high-frequency treatment instrument 62 is used, the second cylindrical portion 85 and the second connection portion 65 are fitted until the distal end 65a of the second connection portion 65 is locked at the second position 71. At this time, since the outer diameter of the first cylinder portion 83 is smaller than the outer diameter of the second cylinder portion 85, the first cylinder portion 83 is inserted into the second connection portion 65.
In this way, as shown in FIG. 18B, the second convex portion 68 and the second concave portion 90 are engaged with the electrical contact 57 in contact with the operation wire 66. At this time, the shaft member 78 is moved and adjusted by the distance between the first large-diameter portion 80 and the second large-diameter portion 81 by the bias of the spring 82, and the electric contact 57 and the operation wire 66 are Contact is maintained.

  According to the non-high frequency treatment instrument 58, the high frequency treatment instrument 62, the endoscope 53, and the endoscope treatment system 91, the treatment instrument operation unit 60 of the non-high frequency treatment instrument 58 and the support member 55 at the first position 70. By engaging, the electric contact 57 and the operation wire 66 can be attached to the endoscope 53 in a state of being separated from each other. Further, by engaging the treatment instrument operating portion 63 of the high-frequency treatment instrument 62 with the support member 55 at the second position 71, the electrical contact 57 and the operation wire 66 can be mounted in contact with each other. The high-frequency power can be supplied through the. In this way, both the non-high-frequency treatment instrument 58 and the high-frequency treatment instrument 62 can be attached to the endoscope.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the present embodiment, the height of the first connection portion 61 of the non-high-frequency treatment instrument 58 and the second connection portion 65 of the high-frequency treatment instrument 62 are substantially the same, and the inner diameter of the first connection portion 61 is Although the diameter is smaller than the inner diameter of the second connection portion 65, the cylindrical main body of the engaging portion is made common and the inner diameters of the first connection portion and the second connection portion are substantially the same. Even if the height of the first connection portion is made higher than the height of the second connection portion, and the height of the first connection portion is fitted between the first connection portion and the cylinder main body, The height at which the contact does not come into contact with the operation wire and the height of the second connection portion are defined as the height at which the electrical contact and the operation wire can come into contact with each other when the second connection portion and the cylinder body are fitted together. It doesn't matter. Also in this case, the same actions and effects as described above can be obtained.
The channel may be externally attached along the side surface of the insertion portion of the endoscope.

(Additional item 1)
The endoscope according to any one of claims 2 to 5, wherein the engaging means is a luer lock connector that can be fitted to the treatment instrument operation section.
The endoscope can be easily fixed to the endoscope by being fitted to the treatment instrument operation section with a luer lock connector.

(Appendix 2)
The treatment tool according to claim 6, wherein the connection portion is a luer lock connector that can be fitted to the operation portion.
The treatment tool can be easily fixed to the endoscope by being fitted to the operation portion of the endoscope with a luer lock connector.

(Additional Item 3)
The endoscope according to appendix 1,
An endoscope treatment system comprising: a treatment instrument having a treatment instrument operation unit that can be fitted to the luer lock connector of the endoscope.
This endoscope treatment system can easily attach the treatment instrument operation section to the endoscope by fitting the operation section of the endoscope and the treatment instrument operation section with a luer lock connector.

It is a side view which shows the treatment tool in the 1st reference form used as the premise of this invention. It is a side view showing an endoscope in the 1st reference form. It is a perspective view which shows the principal part of the endoscope treatment system in a 1st reference form. It is principal part sectional drawing which shows the endoscope treatment system in a 1st reference form. It is (a) AA sectional drawing of FIG. 1, (b) It is BB sectional drawing. It is a side view showing an endoscope treatment system in the 1st reference form. It is explanatory drawing which shows the effect | action of the attachment or detachment operation of the treatment tool in a 1st reference form. It is a side view which shows the endoscope of the state which does not use a treatment tool in the 2nd reference form used as the premise of this invention. It is a side view which shows the endoscope at the time of using a treatment tool in the 2nd reference form. It is a side view which shows the treatment tool in a 2nd reference form. It is a perspective view which shows the principal part of the endoscope treatment system in a 2nd reference form. It is a side view which shows the non-high frequency treatment tool in embodiment of this invention. It is a side view which shows the high frequency treatment tool in embodiment of this invention. It is principal part sectional drawing which shows the (a) 1st connection part of a non-high frequency treatment tool in the embodiment of this invention, and the (b) 2nd connection part of a high frequency treatment tool. It is a side view showing an endoscope in an embodiment of the present invention. It is sectional drawing which shows the (a) engaging part of the endoscope in embodiment of this invention, (b) It is a perspective view which shows an electrical contact. It is a principal part expanded sectional view which shows the connection part and engagement part in embodiment of this invention. The principal part of the endoscope treatment system in embodiment of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 52, 91 ... Endoscopic treatment system 2 ... Treatment tool insertion part, 3 ... Treatment part, 5, 46, 60, 63 ... Treatment tool operation part, 6, 45 ... Treatment tool, 7 ... Insertion part, 8, 51, 75 ... operation part, 10 ... channel, 11, 41, 55 ... support member, 12, 40, 53 ... endoscope, 13 ... forceps port 15, 42, 56 ... engagement part (engagement means), 16 DESCRIPTION OF SYMBOLS ... Connection part 48 ... Base (connection part) 57 ... Electrical contact 58 ... Non-high frequency treatment tool (treatment tool) 61 ... First connection part (connection part) 62 ... High frequency treatment tool (treatment tool) 65 ... second connection part (connection part), 66 ... operation wire, 70 ... first position, 71 ... second position, 73 ... high frequency power supply (power supply device), 76 ... wiring cable (wiring).

Claims (5)

An insertion part having flexibility;
An operation unit for operating the insertion unit;
A channel through which the treatment tool can be inserted;
A support member that detachably attaches the treatment instrument operation section of the treatment instrument to the operation section,
The support member has electrical contacts;
The endoscope is characterized in that the electrical contact is connected to an external power supply device by wiring arranged in the support member and the operation section. A treatment instrument insertion portion having flexibility;
A treatment part connected to the distal end of the treatment instrument insertion part;
A treatment instrument operation unit connected to a proximal end of the treatment unit insertion unit and operating the treatment unit;
The treatment instrument, wherein the treatment instrument operation part is provided with a connection part connectable with the electrical contact of the endoscope according to claim 1. An endoscope according to claim 1;
An endoscopic treatment system comprising the treatment tool according to claim 2. The treatment instrument includes an operation wire that connects the treatment section and the treatment instrument operation section,
The connection portion can be engaged with the support member at either a first position where the operation wire and the electrical contact are separated from each other or a second position where the operation wire and the electrical contact are in contact with each other. The endoscope treatment system according to claim 3, An endoscope,
A treatment instrument inserted into the endoscope;
A treatment instrument side electrical connector provided in the treatment instrument;
An endoscope-side electrical connector provided in the endoscope, connectable to the treatment instrument-side electrical connector; and
An endoscope system comprising: an external power supply device that is electrically connected to the endoscope side electrical connector.

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