JP4555059B2 - Endoscope forceps plug - Google Patents

Description

  The present invention relates to an endoscopic forceps plug.

  An endoscopic forceps plug is generally a rubber member that is detachably provided at the entrance of an endoscope treatment instrument insertion channel, and is normally elastically closed to allow the treatment instrument to pass through. It has a closure membrane that is elastically deformed and expanded.

  Then, in both the state when the treatment tool is not used and the time when the treatment tool is in use, the treatment tool passes through the treatment tool insertion channel so that the sewage in the body does not spout outward from the closure membrane portion to contaminate the surroundings. The first closing membrane having a slit that is elastically deformed and expanded by being applied, and the second closing membrane having an opening that is elastically deformed and expanded by being passed through the treatment instrument are arranged in a double manner Has been.

  When using a treatment instrument having a large diameter that cannot pass through the slit, etc., the first closure film can be removed and the treatment instrument can be passed only through the opening of the second closure film. The closure membrane is formed as a lid-like member that is detachable from the barrel-like member on which the second closure membrane is formed (for example, Patent Document 1).

  However, in a state in which the lid-like member on which such a first closing membrane is formed is removed from the barrel-like member, the body contamination is caused from the opening formed in the second closing membrane when the treatment instrument is not passed. There is a problem that liquid etc. are likely to leak out.

Therefore, a tongue piece that is elastically deformed by being passed through the treatment tool and is pushed down with one end side as a fulcrum is arranged so as to face the back surface of the second closing membrane, so that the treatment tool insertion channel is not used when the treatment tool is not used. It is also conceivable that the tongue piece is pressed against the back surface of the closing membrane by the pressure so that the opening is closed from the back side (for example, Patent Document 2).
JP 2001-218732 A Reality 5-15282

  When the endoscopy is completed, it is necessary to completely clean and disinfect not only the endoscope body but also the forceps plug for each case. In the case of the forceps plug described in Patent Document 2, Care must be taken not to leave the area between the closure membrane dirty.

  However, in order to wash the portion between the tongue piece and the closure membrane with the forceps plug described in Patent Document 2, the tongue piece is bent largely from the root side (fulcrum side) and sufficient between the closure membrane. Since a gap must be created, the base of the tongue piece cracks in a short time, and the forceps plug must be replaced with a new one.

  Therefore, the present invention reliably prevents leakage of sewage when the treatment tool is not used, and can easily and reliably wash and disinfect the portion between the closure membrane and the tongue piece after use. It is an object of the present invention to provide a forceps plug of an endoscope having a sex.

  In order to achieve the above object, the forceps plug of the endoscope of the present invention has a barrel-shaped member made of a resilient material attached to the entrance portion of the treatment instrument insertion channel of the endoscope, and the barrel-shaped member. And a lid-like member made of an elastic material that can be freely engaged and disengaged, and the lid-like member has a first closing membrane having a slit that is elastically deformed and expanded by passing the treatment instrument. In the forceps plug of the endoscope in which the second closing film having an opening that is formed and elastically deformed and expanded when the treatment tool is passed through the barrel-shaped member is formed, A tongue piece that is elastically deformed by being passed through the treatment instrument and pushed down with one end side as a fulcrum at a position facing the back surface of the closure membrane is formed with a gap between the second closure membrane and protruding. It is.

  In addition, if the clearance between the tongue piece and the second closing membrane is at least 0.3 mm, the cleaning performance is good.

  According to the present invention, the tongue piece that is elastically deformed by being passed through the treatment tool and pushed down on one end side as a fulcrum is passed through the second closure, at a position facing the back surface of the second closure membrane in which the opening is formed. By projecting the gap between the membrane and the membrane, it is possible to reliably prevent leakage of the sewage when the treatment tool is not used by the tongue piece, and after use, the second closure membrane is not greatly bent. The portion between the tongue and the tongue piece can be easily and surely cleaned and disinfected, and excellent durability can be obtained.

  A barrel-shaped member made of a resilient material attached to the entrance portion of the treatment instrument insertion channel of the endoscope, and a lid-shaped member made of a resilient material that is detachable with respect to the barrel-shaped member are provided. The lid-shaped member is formed with a first closing film having a slit that is elastically deformed and expanded when the treatment tool is passed through, and the barrel-shaped member is elastically deformed when the treatment tool is passed. In the forceps plug of the endoscope in which the second closing membrane having an opening that is pushed and expanded is formed, the treatment tool is passed through the position facing the back surface of the second closing membrane of the barrel member. A tongue piece that is elastically deformed and can be pushed down on one end side as a fulcrum is formed to project from the second closing film with a gap.

Embodiments of the present invention will be described with reference to the drawings.
In FIG. 2, reference numeral 1 denotes an insertion portion of an endoscope covered with a flexible tube, and the base end thereof is connected to the lower end of the operation portion 2.

  The distal end of the treatment instrument insertion channel 3 inserted and disposed in the insertion section 1 opens to the outside at the distal end of the insertion section 1, and the forceps plug 10 attached to the inlet portion of the treatment instrument insertion channel 3 is connected to the lower end of the operation section 2. It arrange | positions in the state which protrudes diagonally upward from a part.

  The forceps plug 10 is composed of a barrel-shaped member 11 made of a resilient material that is detachably attached to the entrance portion of the treatment instrument insertion channel 3, and a resilient material that is detachable from the barrel-shaped member 11. FIG. 2 shows a state in which the lid-like member 12 is removed from the barrel-like member 11.

  FIG. 1 shows a state in which the forceps plug 10 is attached to a treatment instrument insertion base 30 provided at the inlet end of the treatment instrument insertion channel 3, and the treatment instrument insertion base 30 is connected to the treatment instrument insertion channel 3. Is arranged in a state of projecting from the outer wall surface of the operation unit 2.

  The forceps plug 10 includes a barrel-shaped member 11 formed of an elastic rubber material, and a lid-shaped member 12 formed of an elastic rubber material, which is also detachably attached. ing.

  A small-diameter portion 13 is formed on the lower inner diameter portion of the barrel-shaped member 11, and the small-diameter portion 13 is elastically deformed and engaged with a constricted portion 31 formed in the treatment instrument insertion base 30. When the member 11 is attached to the treatment instrument insertion base 30 and the barrel member 11 is elastically deformed by applying force from the state, the small diameter portion 13 and the constricted portion 31 are disengaged, The barrel-shaped member 11 can be removed from the treatment instrument insertion base 30.

  The central portion of the lid-like member 12 is formed in a shape that is recessed inward, and the bottom portion thereof is the first closing film 14. The central portion of the first closing film 14 has “− "-Shaped slit 15 is formed.

  The slit 15 normally maintains a closed state by its own elasticity and seals between the inside of the treatment instrument insertion channel 3 and the outside, and is elastic by a treatment instrument inserted into and removed from the treatment instrument insertion channel 3. It is expanded and elastically deformed.

  The upper end of the barrel-like member 11 is elastically deformed on the circumferential wall portion formed on the lid-like member 12 so as to surround the outer periphery of the first closing membrane 14 with a space in the outer diameter direction. An inward projection 17 that can be freely engaged and disengaged is formed in a circumferential groove 16 formed on the outer peripheral surface in the vicinity.

  Therefore, by disengaging the circumferential groove 16 and the inward protrusion 17, the lid-like member 12 can be removed from the barrel-like member 11 as shown by a two-dot chain line in FIG. 1. However, since the connecting belt 18 integrally extending from the lid-like member 12 is always connected near the lower end of the barrel-like member 11, the barrel-like member 11 and the lid-like member 12 are completely separated. Not a translation.

  When the lid-like member 12 is attached to the barrel-like member 11, the second closure membrane 24 is located on the inner peripheral wall of the barrel-like member 11 at a position facing the bottom surface of the first closure membrane 14 of the lid-like member 12. A circular opening 25 is formed at the center position of the second closing film 24 so as to be aligned with the slit 15 of the first closing film 14. Is formed.

  In addition, the tongue piece 20 is inward from the inner peripheral wall of the barrel-shaped member 11 at a position facing the back surface of the second closing film 24 (that is, the back surface as viewed from the first closing film 14 side). It is formed so as to protrude. The tongue piece 20 is connected to the barrel member 11 in a cantilever state only at a connecting portion 21 formed on one end side thereof, as shown in FIG. 3 illustrating a III-III cross section in FIG.

  As shown in FIGS. 4 and 5, when the treatment tool 100 or the like is passed from the outside so as to pass through the opening 25, the tongue piece 20 is elastically deformed with the connecting portion 21 as a fulcrum and pushed down. When the pressure in the treatment instrument insertion channel 3 is increased, as shown in FIG. 6, the connection portion 21 is elastically deformed and pushed up with the fulcrum 21 as a fulcrum, and closes to the back surface of the second closing film 24 to close the opening 25. To work.

  Returning to FIG. 1, a gap 22 is formed between the tongue piece 20 and the second closing film 24. The size t of the gap 22 is more convenient when considering only the cleanability of the portion. However, it is necessary that the size t of the gap 22 is not impaired, and t = 0.3-0. It is good to set to about 5 mm (at least 0.3 mm).

  FIG. 4 shows a state in which the treatment instrument 100 is passed from the outside through the forceps plug 10 of the embodiment configured as described above, and the slit 15 and the second closure formed in the first closure film 14. The opening 25 formed in the film 24 is elastically pushed and expanded by the treatment tool 100, and the tongue piece 20 is elastically pushed down with the connecting portion 21 as a fulcrum.

  In addition, when the diameter of the treatment instrument 100 is large enough not to pass through the slit 15, the lid-like member 12 is removed from the barrel-like member 11 as shown in FIG. Only the opening 25 of the two closing membranes 24 is pushed out and inserted.

  Then, when the subject burps and the pressure in the treatment instrument insertion channel 3 rapidly rises with the lid-like member 12 removed and the treatment instrument 100 is not used, as shown in FIG. In addition, since the opening 25 of the second closing membrane 24 is closed by the tongue piece 20, the in-body sewage or the like does not jet out.

  When the forceps plug 10 is cleaned and disinfected after the endoscopy is completed, the forceps plug 10 is removed from the treatment instrument insertion base 30 of the endoscope as shown in FIG. In a state where it is removed from the upper end portion of the barrel-shaped member 11, a cleaning liquid or the like is injected into the barrel-shaped member 11 from the opening 25 of the second closing film 24. Since the injection port is not the slit 15 but the opening 25, the cleaning liquid or the like can be easily and sufficiently injected.

  Accordingly, the cleaning liquid is fed into the barrel-shaped member 11 in a state where the tongue piece 20 is lightly elastically deformed, and the gap 22 is formed between the second closing film 24 and the tongue piece 20. Without greatly bending 20, the cleaning liquid is surely flowed to the opposite surface portion between the second closing film 24 and the tongue piece 20, and the portion can be reliably cleaned.

  Further, if the forceps plug 10 is immersed in the disinfecting solution, the disinfecting solution is also turned to the opposite surface portion between the second closing film 24 and the tongue piece 20 due to the presence of the opening 25 and the gap 22 so that the portion is surely secured. Can be disinfected.

It is side surface sectional drawing of the state in which the forceps plug of the endoscope of the Example of this invention was attached to the endoscope. 1 is a side view showing an overall configuration of an endoscope according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1 of the forceps plug of the endoscope according to the embodiment of the present invention. It is side surface sectional drawing of the state by which the treatment tool was inserted in the forceps plug of the endoscope of the Example of this invention. It is side surface sectional drawing of the state by which the treatment tool was inserted in the state which removed the lid-shaped member from the forceps plug of the endoscope of the Example of this invention. It is side surface sectional drawing of the state in which the treatment tool is not inserted in the forceps plug of the endoscope of the Example of this invention. It is side surface sectional drawing of the state by which the forceps stopper of the endoscope of the Example of this invention is removed from an endoscope and wash | cleaned.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Treatment tool insertion channel 10 Forceps stopper 11 Barrel-shaped member 12 Lid-shaped member 14 1st closing film 15 Slit 20 Tongue piece 21 Connection part 22 Gap 24 2nd closing film 25 Opening 100 Treatment tool

Claims (2)

A barrel-shaped member made of a resilient material attached to the entrance portion of the treatment instrument insertion channel of the endoscope and a lid-shaped member made of a resilient material detachable from the barrel-shaped member are provided. The lid-shaped member is formed with a first closing film having a slit that is elastically deformed and expanded when the treatment tool is passed, and the barrel-shaped member is passed with the treatment tool. In the forceps plug of the endoscope in which the second closing membrane having an opening that is elastically deformed and expanded by the
A tongue piece, which is elastically deformed by being passed through the treatment tool at a position facing the back surface of the second closing membrane of the barrel-shaped member and pushed down on one end side as a fulcrum, is the barrel shape only on the one end side. Protrusively formed with a gap between the second closure membrane in a state connected to the member ,
When the pressure in the treatment instrument insertion channel increases, the tongue piece is elastically deformed to close the opening of the second closing membrane so that there is no gap between the back surface of the second closing membrane. An endoscopic forceps plug.   The endoscopic forceps plug according to claim 1, wherein a gap between the tongue piece and the second closing membrane is at least 0.3 mm.

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