JP4955347B2 - Endoscope cap - Google Patents

Description

The present invention relates to an endoscope cap that is attached to the distal end of an endoscope used in, for example , endoscopic submucosal dissection (ESD), and includes a cleaning liquid supply tube that ejects cleaning liquid and cleans an affected area.

  Conventionally, a cylindrical main body having an outer fitting portion fitted to the distal end of the endoscope, a space forming portion provided at the distal end of the endoscope mounting portion and having a through hole formed in the peripheral wall, and a space forming portion 2. Description of the Related Art An endoscope cap is known that includes a cleaning liquid supply tube that ejects from a distal end a cleaning liquid that is inserted into and fixed to a through-hole and that cleans an affected area, and that ejects the cleaning liquid from the cleaning liquid supply tube. (For example, refer to Patent Document 1).

Since the conventional endoscope cap has one ejection port for the cleaning liquid, it is necessary to clean the affected area from only one direction. However, the affected part is often spread to some extent, and it is difficult to clean from only one direction, and there is a problem that skill is required for the cleaning work.
Japanese Patent No. 3790866

  An object of this invention is to provide the cap for endoscopes which can wash | clean an affected part easily in view of the above point.

  To achieve the above object, the present invention provides a cylindrical main body that is externally fitted to the distal end of an endoscope, and a cleaning liquid supply tube that is connected to the cylindrical main body and supplies a cleaning liquid that cleans the affected area. In the mirror cap, the cylindrical main body is formed with a circumferential flow path in the circumferential wall through which the cleaning liquid supplied from the cleaning liquid supply tube flows in the circumferential direction, and an outlet from which the cleaning liquid is ejected is formed in the circumferential direction. A plurality of channels are provided in communication with the flow path.

  According to the present invention, the cleaning liquid supplied by the cleaning liquid supply tube is ejected from the plurality of jet outlets via the circumferential flow path formed in the peripheral wall of the cylindrical main body. Accordingly, the cleaning liquid can be ejected from a plurality of directions toward the affected part, and the affected part can be easily cleaned. Further, since the cleaning liquid is ejected from the plurality of jet outlets using one cleaning liquid supply tube without providing a plurality of cleaning liquid supply tubes, the cleaning liquid is provided in comparison with the case where the cleaning liquid supply tube is provided for each jet outlet. The supply tube is less likely to be entangled, and the endoscope cap is easy to handle.

  In addition, the cylindrical main body forms an outer fitting portion that is fitted to the distal end of the endoscope, and a space that is provided at the distal end of the outer fitting portion to maintain a constant distance between the distal end of the endoscope and the affected portion. It is preferable that a through hole for discharging the liquid accumulated in the space forming portion is formed in the peripheral wall of the space forming portion. According to such a configuration, it is possible to discharge the liquid such as the cleaning liquid and blood collected in the space forming portion through the through hole to the outside of the space forming portion. Thereby, the visual field of an endoscope can be kept favorable.

  Moreover, it is preferable to connect the multipurpose tube opened ahead to the cylindrical main body. According to such a configuration, it is possible to perform ventilation, suction, and the like using a multipurpose tube, and replace an endoscope that is currently used without replacing with a new endoscope having many channels through which forceps and the like are inserted. The number of channels can be easily increased at low cost.

  An embodiment of an endoscope cap of the present invention will be described with reference to FIGS. FIG. 1 is an explanatory sectional view showing an endoscope cap of the present embodiment, and FIG. 2 is an explanatory view showing the endoscope cap of the present embodiment from the distal end side.

  The endoscope cap 1 according to the embodiment of the present invention has an outer fitting portion 31 that is detachably fitted to the distal end of the endoscope 2, and a constant distance from the distal end of the endoscope 2 to the affected portion. A cylindrical main body 3 having a space forming portion 32 for facilitating treatment and treatment with forceps or the like inserted into a channel of the endoscope 2 is provided. The inner diameter of the space forming portion 32 is formed larger than the inner diameter of the outer fitting portion 31. This facilitates medical practice without narrowing the field of view of the endoscope 2 fixed to the outer fitting portion 31 by the space forming portion 32. In addition, a pair of through holes 32 a penetrating in the radial direction is formed in the peripheral wall of the space forming portion 32.

  An annular circumferential flow path 4 is formed in the peripheral wall of the space forming portion 32. In addition, the space forming portion 32 is provided with an insertion port 41 so as to communicate with the circumferential flow path 4 from behind. A cleaning liquid supply tube 5 for supplying the cleaning liquid to the circumferential flow path 4 is inserted into and fixed to the insertion port 41. A connector 5 a that can be connected to a syringe or the like is provided at the proximal end of the cleaning liquid supply tube 5. In addition, two outlets 6 (see FIG. 2) communicating with the circumferential flow path 4 are provided at the tip edge of the space forming portion 32. The cleaning liquid supplied from the cleaning liquid supply tube 5 to the circumferential flow path 4 is jetted forward from the jet outlet 6. In addition, you may incline the jet nozzle 6 so that the washing | cleaning liquid jetted ahead may incline and inject in radial direction inner side.

  In addition, the endoscope cap 1 is provided with a multipurpose tube 7 which is inserted into an insertion port 42 formed on the peripheral wall of the cylindrical main body 3 and fixed, and the distal end faces the space forming portion 32. .

  Next, a method for using the endoscope cap 1 of this embodiment will be described.

  First, the outer fitting portion 31 of the endoscope cap 1 is fitted on the distal end of the endoscope 2. The cleaning liquid supply tube 5 and the multipurpose tube 7 are fixed to the outer peripheral surface of the endoscope 2 with a tape or the like. Then, the endoscope 2 is inserted into the body through a body hole such as a patient's mouth. When the distal end of the endoscope 2 approaches the affected area, the cleaning liquid is supplied from the cleaning liquid supply tube 5 to the circumferential flow path 4 and the cleaning liquid is ejected from the ejection port 6 toward the affected area. Since the washing liquid is ejected from the two jet nozzles 6, the medical staff can easily wash the affected area with the washing liquid. Alternatively, the affected part may be cleaned by sending air using the multipurpose tube 7 and blowing air to the affected part.

  Then, the distal end of the endoscope cap 1 is pressed against the periphery of the affected part so as to wrap the affected part, and treatment / treatment is performed with forceps or the like inserted into the channel of the endoscope 2. Since the distance between the distal end of the endoscope 2 and the affected part is maintained constant by the space forming part 32, the medical staff can easily perform the treatment / treatment of the affected part. At this time, blood, washing liquid, or the like may accumulate in the space forming portion 32, but the blood or the like accumulated from the through hole 32 a formed in the peripheral wall of the space forming portion 32 can be discharged. Visibility can be kept good. Further, the multipurpose tube 7 may be used to suck blood or the like accumulated in the space forming portion 32.

  According to the endoscope cap 1 of the present embodiment, the cleaning liquid can be ejected from a plurality of directions toward the affected part, and the affected part can be easily cleaned. In addition, since the cleaning liquid is ejected from the plurality of jet outlets 6 by using one cleaning liquid supply tube 5 without providing a plurality of cleaning liquid supply tubes, the cleaning liquid supply tube is provided for each jet outlet. The cleaning liquid supply tube is less likely to be entangled, and the endoscope cap is easy to handle.

  In addition, since the multipurpose tube 7 is provided in the endoscope cap 1, the endoscope 2 that is currently used can be used without replacing with a new endoscope having many channels through which forceps and the like are communicated. The number of channels can be easily increased at low cost.

  In addition, in this embodiment, although the thing provided with the two jet nozzles 6 was demonstrated, it is not restricted to this, Three or more may be sufficient. In the present embodiment, the annular flow path 4 has been described as being annular. However, the circumferential flow path 4 may not be annular, and may be formed in an arc shape, for example.

  Further, in the present embodiment, the cylindrical main body 3 including the space forming portion 32 has been described. However, the cylindrical main body 3 may not include the space forming portion 32, and the “affected portion” of the present invention can be used. Can be easily washed ”. In this case, the circumferential flow path 4 may be formed in the peripheral wall of the outer fitting portion 31.

Explanatory sectional drawing which shows the cap for endoscopes of this embodiment. Explanatory drawing which shows the cap for endoscopes of this embodiment from the front end side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Endoscope cap, 2 ... Endoscope, 3 ... Cylindrical member, 31 ... Outer fitting part, 32 ... Space formation part 32a ... Through-hole, 4 ... Circumferential flow path, 41, 42 ... Insertion port, 5 ... Cleaning solution supply tube 5a ... Connector, 6 ... Spout, 7 ... Multipurpose tube.

Claims (3)

In an endoscope cap comprising: a cylindrical main body that is detachably fitted to the distal end of an endoscope; and a cleaning liquid supply tube that is connected to the cylindrical main body and supplies a cleaning liquid for cleaning the affected area.
The cylindrical main body is formed with a circumferential flow path in the circumferential wall through which the cleaning liquid supplied from the cleaning liquid supply tube flows in the circumferential direction, and an outlet from which the cleaning liquid is jetted forward is formed in the circumferential flow path. An endoscope cap characterized in that a plurality of caps are provided in communication. The cylindrical main body forms an outer fitting portion that is fitted to the distal end of the endoscope, and a space that is provided at the distal end of the outer fitting portion to maintain a constant distance between the distal end of the endoscope and the affected portion. And a space forming portion to
The endoscope cap according to claim 1, wherein a through-hole for discharging the liquid accumulated in the space forming portion is formed in a peripheral wall of the space forming portion.   The endoscope cap according to any one of claims 1 and 2, wherein a multipurpose tube that opens forward is connected to the cylindrical main body.

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