JP4061594B2 - Endoscope food knife - Google Patents

Description

  The present invention adds an electric knife or knife function directly to the transparent hood attached to the distal end of the medical endoscope, and the added electric knife or knife function does not use the forceps hole of the endoscope. The present invention relates to a technique for facilitating complicated treatment and treatment by an endoscope by enabling insertion of another type of device into a forceps hole.

  When endoscopically treating or treating gastrointestinal tract cancers, use an IT knife (insulation-tipped dithermic knife), a hook knife, an electric knife such as a needle knife, or the periphery of the target lesion. An endoscopic mucosal resection is performed by incising at a depth of the submucosa, subsequently submerging into the submucosa from one point of the incision, and again peeling the lesion using the electric knife or knife. The advantage is that large lesions can be resected and the resected lesions can be observed and diagnosed in detail.

  However, with conventional electric scalpels or knives, the contact part is a point, so it takes a long time to peel, and often peels under the blind, so advanced endoscopic operation techniques are required and the stomach wall is perforated. The risk was high. In fact, the conventional electrosurgical knife or knife is operated through only one forceps hole, so other treatment tools that are limbs cannot be used at the same time, and it is difficult to maintain the peeling operation under the mucous membrane, which tends to be blind. . Therefore, in the present invention, an electric knife or knife function is attached to the hood itself attached to the distal end of the endoscope, and the attached function is made possible without using the forceps hole of the endoscope. A first object is to enable operations such as excision, incision, and detachment with a visual field that is stable under visible conditions by inserting a treatment tool such as grasping forceps and grasping a lesion or excision surface. In addition, the attached blade of the electric knife or knife is a line or a surface, and further has mobility, so that operations such as excision, incision, and detachment can be efficiently performed in a short time. To do. Furthermore, by adding the already disclosed cleaning function (transparent hood with endoscope cleaning function; patent publication: 2003-204921) to the cap part, the endoscope field of view such as bleeding is reduced during treatment / treatment. The third problem is to make the grasping forceps and the like electrically coexist with the function of the coagulation forceps and to stop bleeding promptly. In addition, it is thought that it is most easy to use the normal cap part by cutting it into a partial hood of about one third, but by making the cap part of this partial hood rotatable, it becomes peripheral A fourth problem is to enable operations such as excision, incision, and detachment regardless of where a lesion is present.

  The cap part of the conventional transparent hood is cut and processed into a one-third circumference. A side hole is made in the hood portion, and a tube through which an electric knife or knife is passed from the outside of the cap portion is bonded. In addition, the electric knife or knife is basically a processed high-frequency snare or strangulation device which is a conventional treatment tool. The high-frequency snare or strangulation device that penetrates the cap part is appropriately fixed while maintaining the mobility inside the cap part. Furthermore, the already disclosed cleaning function (transparent hood with endoscope cleaning function; Patent Publication: 2003-204921) is added to the cap portion. The endoscope hood knife according to the present invention thus completed is put on the tip of the endoscope as usual, and the two tubes are fixed to the endoscope body with tape. On the other side of the tube, a connector is attached to one side, and washing water is injected from the connector, so that it can always be washed through the tube in the transparent hood. On the other side, a handle is attached so that the length of the cutting edge can be adjusted. The two tubes are externally attached to the endoscope body, so that the incision / peeling operation and cleaning can be performed without using the endoscope forceps hole. Dedicated to the treatment device, complex treatment / treatment and cleaning can be performed at the same time.

  Two oblique holes (4,5) are made in the corresponding part of the cap part (1) of the cut transparent hood, and two tubes (6,7) longer than the endoscope main body that fits the diameter of the oblique holes there. Glue. The oblique hole (4) opened in the cap part (1) is an ejection hole for washing water injected from the connector (11). The slant hole (5) opened in the cap part (1) passes through a metal wire serving as an electric knife or knife (8). The length of the wave front of the electric knife or knife (8) can be varied by the handle comprising the handle body (12), the handle gripping portion (13), and the handle variable portion (14). The electric knife or knife (8) is fixed to the cap part (1) by the electric knife or knife fixing part (9). The cap part (1) continues to the endoscope mounting part (3) via the cap rotating part (2), and is fixed to the distal end part of the endoscope by the endoscope mounting part (3). The cap rotating part (2) is structured to be able to rotate the cap part (1) as much as possible. The two tubes (6, 7) are branched at the branching portion (10) and continue to the connector (11) and the handle (12-14). In this completed hood, the endoscope mounting part (3) is put on the tip of the endoscope as usual, and the tubes (6, 7) are taped to the main body at about five places, and the tip of the syringe filled with cleaning water is attached. Fit into connector (11). This completes the preparation of the device and corresponds to the actual treatment / treatment. Thereby, in the cap part (1), it becomes always washable via the tube (6). The electric knife or knife (8) fixed inside the cap part (1) can be cut and peeled by the handle (12-14) without using a forceps hole. The forceps hole in the endoscope body is dedicated to other treatments and therapeutic instruments, allowing complex treatments and treatments to be performed simultaneously with cleaning.

When performing endoscopic treatment / therapy for gastrointestinal cancer, the endoscope food knife according to the present invention is mounted as described above, and the endoscope is inserted into the subject. In particular, when gastrointestinal cancer is peeled off in the submucosa by endoscopic mucosal resection, a treatment tool such as a grasping forceps is inserted into the forceps hole to grasp the lesion, and the endoscope food knife of the present invention is used. A wide range of detachment is performed with a stable field of view by inserting it into the submucosa . Further, if the field of view such as bleeding is reduced during the operation, hemostasis can be easily performed while washing by inserting an instrument for hemostasis treatment from the forceps hole.

The invention's effect

  The endoscope hood knife according to the present invention has an electric knife or knife function added to the hood when performing endoscopic treatment / therapy for gastrointestinal cancer. It became possible to insert a treatment tool, and it was a complicated treatment and treatment. Furthermore, by making it possible to perform the cleaning action at the same time, an environment for facilitating treatment / treatment can be created, and the examination time, treatment / treatment time can be shortened. In addition, complications such as bleeding lead to a decrease in the amount of bleeding.

It is the whole view which looked at the cap part from the plane. It is the whole view which looked at the cap part from the side. It is the whole view which looked at the cap part from the back. (A) The electric knife or knife is in the hood. (B) The electric knife or knife extends out of the hood. It is a general view of the food knife for endoscopes.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cap part 2 Cap rotation part 3 Endoscope mounting part 4 Cleaning tube oblique hole part 5 Electric knife or knife oblique hole part 6 Cleaning tube 7 Electric knife or knife tube 8 Electric knife or knife 9 Electric knife or knife fixing part 10 Tube branching portion 11 Connector 12 Handle body 13 Handle gripping portion 14 Handle variable portion

Claims (1)

When not attached, the endoscope body is detachable to enable normal use as a general-purpose one-channel endoscope, and is attached to the distal end of the endoscope for use via the channel of the endoscope body. independent electric scalpel to permit resection, incision and peeling without the inserted cutter, with hood fitted with a knife or high-frequency snare inside the direct cap portion, and, attached to the outside of the cap portion electrically female, by a metal wire serving as a knife or a high-frequency snare through the inclined hole opened in the cap portion attached to the inside of the cap portion, operating the handle contiguous thereto, electric knife, a knife or a high-frequency snare variably in the horizontal direction with respect to the length cap of the cutting edge of the, i.e., the shortest time is the longest time remains in the cap can freely in the length jumping out cap And, cutting the circumference resident of the cap portion about one-third of a transparent hood to facilitate entry into the narrow detail.

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