JP2003052705A - Clipping device for endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clipping device for an endoscope which is not deformed even when a clipping nail unit put into a sterilizing bag is carelessly handled before the unit is attached to the distal end segment of a sheath section and which can surely be used when the need for use arises. SOLUTION: The clipping nail unit 10 which is used by being attached to the distal end segment of the sheath section 20 to be inserted and removed into and from a therapeutic appliance insertion channel of the endoscope is housed into a protective member 50 in the state of the unit alone and is sealed into the unsealable sterilizing bag 1 before use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is placed in the body in a state where a clip claw placed at the tip is forcibly closed in order to perform hemostatic treatment, marking, etc. through a treatment instrument insertion channel of an endoscope. The present invention relates to a clip device for an endoscope.

[0002]

2. Description of the Related Art A clip device for an endoscope has a structure in which a clip claw unit placed in a body is attached to a distal end portion of a sheath portion to be inserted into and removed from a treatment instrument insertion channel of an endoscope. Therefore, the clip claw unit that sticks to the mucous membrane surface needs to be sterilized.

However, it would be very complicated if the clip claw unit was sterilized after each use preparation work. Therefore, the clip claw unit is separately enclosed in a sterilization pack, and the sterilization pack is used at the time of use. It is taken out from the container and used (Japanese Patent Laid-Open No. 2000-335631).

[0004]

However, in such a conventional endoscope clip device, since the clip claw unit is simply enclosed in the sterilization pack as it is, careless handling or the like is required. If an external force is applied due to this, the clip claws may be deformed and become unusable.

Therefore, according to the present invention, when the clip claw unit placed in the sterilized pack is not deformed even if it is inadvertently handled before it is attached to the distal end portion of the sheath portion, and it is necessary to use it. An object of the present invention is to provide a clip device for an endoscope that can be reliably used in the above.

[0006]

In order to achieve the above object, the clip device for an endoscope of the present invention is used by being attached to the distal end portion of a sheath portion which is inserted into and removed from a treatment instrument insertion channel of an endoscope. Prior to use, the clip claw unit is housed in a protective member as a single unit, and then enclosed in a sterilizable pack that can be opened.

The protective member may be a tubular member, in which case the tubular protective member is preferably movable in the axial direction with respect to the clip claw unit housed inside.

Further, a connecting wire engaged with the member on the sheath portion side is connected to the clip claw unit, and the connecting wire is sandwiched between the slits formed on the tubular protective member. It may be led out to the outside of the protection member in the closed state.

The clip claw unit is connected to a plurality of openable and closable clip claws, a clip mandrel arranged between the proximal ends of the plurality of clip claws, and the base ends of the plurality of clip claws. It may include a connecting wire and a clip closure ring for forcing the clip to remain closed.

[0010]

Embodiments of the present invention will be described with reference to the drawings. FIG. 2 shows a clip claw unit 10. For example, three clip claws 11 formed of a stainless steel plate material for springs and the like are arranged at equal intervals (that is, approximately 120 ° intervals) so as to be openable and closable in a radial manner. , Proximal end 11
They are integrally connected at a. FIG. 2 shows the clip claw 11 in a closed state.

At the portion of the clip claw 11 near the base end 11a, the clip core metal 12 is provided inside the three clip claws 11.
Are arranged. The clip core metal 12 is shown in FIG.
As is also shown, the front side is formed in a columnar shape having a step with a small diameter, and is arranged inside the opening / closing drive section 11b formed in a wavy shape in the clip claw 11 portion.

A connecting wire 13 for pulling the clip claw 11 backward is connected to the base end 11a of the clip claw 11. The connecting wire 13 is formed in an annular shape with its end portions tied together.

A clip closing ring 14 is fitted on the outer surface of the base end portion 11a of the clip claw 11, and when the clip closing ring 14 is moved to the front of the clip claw 11 and the opening / closing drive portion 11b is pulled inside. Depending on the relationship with the clip core metal 12, the three clip claws 11 operate to open and then close.

When the clip claw unit 10 configured as described above is shipped to the user, as shown in FIG. 1, the clip claw unit 10 is hermetically sealed in the sealing portion 1a formed along the outer edge portion. It is enclosed in the sterilization pack 1. 1
b is the open end of the sealing portion 1a.

However, the clip claw unit 10 is not arranged in the sterilization pack 1 as it is, but is made of a synthetic resin or metal tubular member such as a tetrafluoroethylene resin tube. It is housed in a protective member 50 whose both ends are open, and is enclosed in the sterilization pack 1 in a sterilized state together with the protective member 50.

Therefore, the clip claw unit 10 stored in the sterilization pack 1 will not be deformed or damaged even if it is carelessly handled to some extent. The connecting wire 13 is guided to the outside of the protective member 50 in the sterilization pack 1 while being sandwiched between the slits 51 formed in the protective member 50.

As described above, when the clip claw unit 10 enclosed in the sterilization pack 1 is used, as shown in FIG. 3, the opening end 1b is pinched with a fingertip or the like to sterilize the pack 1.
And the clip claw unit 10 stored in the protection member 50 is taken out from the sterilization pack 1 and, as shown in FIG. 4, the connecting wire 13 extending from the slot 51 of the protection member 50. Is engaged with the wire connecting hook 24 of the sheath portion 20.

As shown in FIG. 4, the sheath portion 20 is
For example, the ring receiving coil 22 is inserted through the flexible tube 21 formed to have the same diameter as that of the protection member 50 so as to be movable back and forth in the axial direction, and the operation wire 23 is arranged at the axial position so as to be movable back and forth. The wire connecting hook 24 is attached to the tip. Ring receiving coil 2
A ring receiving tube 25 for receiving the clip closing ring 14 is attached to the tip of the ring 2.

Next, as shown in FIG. 5, the operating wire 23 is pulled by an operating portion (not shown) provided on the proximal end side of the sheath portion 20, and the connecting wire 1 is connected.
3 is drawn into the ring receiving coil 22, and at the same time, the protective member 50 is fitted onto the ring receiving coil 22.

Then, as shown in FIG. 6, when the flexible tube 21 is moved forward from the operation portion side, the protective member 50 is pushed out by the flexible tube 21 and disengaged from the clip claw 11 for use. Get ready. Therefore, at least the rear end of the protection member 50 may be open.

[0021]

According to the present invention, the clip claw unit, which is used by being attached to the distal end portion of the sheath portion that is inserted into and removed from the treatment instrument insertion channel of the endoscope, is housed in the protective member as a single unit. Then, by enclosing it in a sterilizable pack that can be opened, the clip claw unit placed in the sterilized pack may be deformed even if it is inadvertently handled before it is attached to the distal end of the sheath. It can be surely used when it runs out and needs to be used.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a clip claw unit according to an embodiment of the present invention housed in a sterilization pack.

FIG. 2 is a plan sectional view of the clip claw unit according to the embodiment of the present invention.

FIG. 3 is a plan view showing a state where the sterilization pack according to the embodiment of the present invention is about to be opened.

FIG. 4 is a plan sectional view showing an operation when the clip claw unit of the embodiment of the present invention is coupled to the sheath portion side.

FIG. 5 is a plan sectional view showing an operation when the clip claw unit of the embodiment of the present invention is connected to the sheath portion side.

FIG. 6 is a plan sectional view showing an operation when the clip claw unit of the embodiment of the present invention is connected to the sheath portion side.

[Explanation of symbols]

1 sterilization pack 10 clip claw unit 11 clip claws 13 Connecting wire 20 Sheath part 24 wire connection hook 50 Protective material 51 Slot

Continued front page    F term (reference) 3E067 AA11 AA14 AB83 AC01 BA14B                       BA31C BB11B BB14B BC03B                       BC04C EA04 EA09 EA15                       EB11 EB27 ED08 FB12 GC01                       GC10 GD03 GD06                 4C060 DD16 DD19 MM24                 4C061 GG15

Claims (5)

[Claims] 1. A clip claw unit, which is used by being attached to a distal end portion of a sheath portion which is inserted into and removed from a treatment instrument insertion channel of an endoscope, is housed in a protective member in a state of a single unit before use. And a clip device for an endoscope, which is enclosed in a sterilizable pack that can be opened. 2. The protection member is a tubular member.
The clip device for an endoscope according to the description. 3. The clip device for an endoscope according to claim 2, wherein the tubular protection member is movable in the axial direction with respect to the clip claw unit housed inside thereof. 4. A connecting wire engaged with a member on the side of the sheath portion is connected to the clip claw unit, and the connecting wire is provided between slits formed on the tubular protective member. The clip device for an endoscope according to claim 2 or 3, wherein the clip device is guided to the outside of the protective member while being sandwiched by the clip member. 5. The clip claw unit includes a plurality of clip claws that can be opened and closed, a clip core bar disposed between portions of the plurality of clip claws near the base ends, and a plurality of clip claws at the base ends. The endoscopic clip device according to claim 1, comprising a connected connecting wire and a clip closing ring for forcibly holding the clip in a closed state.