JP4531442B2 - Endoscope forceps plug - Google Patents

Description

  The present invention relates to an endoscopic forceps plug.

  An endoscope forceps plug is generally a rubber member that is detachably provided at an entrance portion of a treatment instrument insertion channel of an endoscope, and is a slit that is elastically deformed and expanded when the treatment instrument is passed. Has a closure membrane formed.

  However, simply by providing such a closed membrane with slits, when the treatment instrument is not used, the sewage in the body squirts through the gap between the slits through the treatment instrument insertion channel and contaminates the surroundings. There is a case.

Therefore, a tongue piece that is elastically deformed by being passed through the treatment tool and pushed down on one end side as a fulcrum is arranged so as to face the back surface of the closure membrane, and the treatment tool insertion channel is not used when the treatment tool is not used. When the pressure increases, the tongue piece is pressed against the back surface of the closing membrane by the pressure so that the slit portion is blocked from the back side (for example, Patent Document 1).
Reality 5-15282

  After the endoscopy is completed, it is necessary to clean and disinfect not only the endoscope body but also the forceps plug for each case. In the case of the above-described forceps plug, Care must be taken not to leave the area between the two dirty.

  However, in order to clean the portion between the tongue piece and the closing membrane, the tongue piece must be bent largely from the root side (fulcrum side) to create a sufficient gap between the tongue piece and the tongue piece. A crack occurred in the root part of the needle for a short time, and the forceps plug had to be replaced with a new one.

  Accordingly, the present invention provides a tongue piece on the back side of the closure membrane in which slits are formed to more completely prevent leakage of dirty liquid when the treatment tool is not used, and after use, between the closure membrane and the tongue piece. It is an object of the present invention to provide an endoscopic forceps plug that can easily and reliably be cleaned and disinfected, and has excellent durability.

  In order to achieve the above object, the forceps plug of the endoscope of the present invention faces a closing membrane formed with a slit that is elastically deformed and expanded by passing a treatment tool, and a back surface of the closing membrane. An endoscopic forceps plug having a tongue piece that is disposed at a position and elastically deformed by being passed through the treatment tool and pushed down with one end side as a fulcrum, to the forceps plug, the endoscope treatment tool insertion channel A barrel-shaped member made of a resilient material that can be attached and detached at the inlet portion of the container and a lid-shaped member made of a resilient material that is detachable with respect to the barrel-shaped member are provided, and the closure membrane is used as the lid-shaped member. The tongue piece is formed into a barrel-shaped member.

  In addition, the tongue piece may be formed so as to project in a cantilever state from the inner peripheral wall of the barrel-shaped member inward. Further, the back surface of the closing membrane and the tongue piece may be arranged so as to be in close contact with each other in a normal state, or may be configured such that there is a gap in the normal state between the back surface of the closing membrane and the tongue piece. .

  Moreover, the protrusion which can get over while the tongue piece elastically deforms may be formed on the inner peripheral wall of the barrel-like member adjacent to the back surface of the tongue piece.

  According to the present invention, when the endoscope is used, even if a gap is formed in the slit when the treatment tool is not used, the slit is closed by the tongue piece, so that leakage of filth from the forceps plug is more completely prevented, and After the endoscope is used, the lid-like member on which the closing membrane is formed and the barrel-like member on which the tongue piece is separated to easily and reliably clean and disinfect the portion between the closing membrane and the tongue piece. And excellent durability can be obtained.

  A closing membrane formed with a slit that is elastically deformed and expanded when the treatment instrument is passed through, and one end side that is elastically deformed when the treatment instrument is passed through the position facing the back surface of the closing membrane An endoscopic forceps plug having a tongue that is pushed down on a fulcrum, and a barrel-shaped member made of a resilient material that is detachably attached to the entrance portion of the treatment instrument insertion channel of the endoscope, A lid-like member made of an elastic material that can be freely attached to and detached from the barrel-like member, a closing film is formed on the lid-like member, and a tongue piece is formed on the barrel-like member.

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 a forceps plug 10 that is detachably attached to the inlet portion of the treatment instrument insertion channel 3 includes an operation section. It arrange | positions in the state which protrudes from the lower end part of 2 diagonally upwards.

  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 part of the lid-like member 12 is formed in a shape that is recessed inward, and the bottom part thereof is a closing film 14, and a “−” shaped slit 15 is formed in the central part of the closing film 14. 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 circumferential wall portion formed on the lid-like member 12 in a state of surrounding the periphery of the closure film 14 with a space from such a portion is formed on the outer circumferential surface in the vicinity of the upper end of the barrel-like member 11 by elastic deformation. An inward projection 17 that can be freely engaged and disengaged is formed in the circumferential groove 16 formed.

  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.

  Reference numeral 20 denotes a tongue piece that protrudes inwardly from the inner peripheral wall of the barrel-shaped member 11. The lid-shaped member 12 is attached to the barrel-shaped member 11, and the inner protrusion 17 engages with the circumferential groove 16. In this state, the tongue piece 20 is laid out so as to be in close contact with the back surface 14a of the closing film 14 formed in a planar shape.

  As shown in FIG. 3, the tongue piece 20 is connected to the barrel-like member 11 in a cantilever state only at a connecting portion 21 formed on one end side thereof, and a treatment tool or the like is passed through the slit 15. When passed, the tongue piece 20 is pushed down by being elastically deformed with the connecting portion 21 as a fulcrum.

  FIG. 4 shows a state in which the treatment tool 100 is passed from the outside through the forceps plug 10 of the embodiment configured as described above, and the slit 15 formed in the closing membrane 14 is elastically formed by the treatment tool 100. The tongue piece 20 is pushed and expanded elastically with the connecting portion 21 as a fulcrum. FIG. 5 shows a state in which the syringe barrel 200 is inserted into the forceps plug 10 instead of the treatment instrument 100, and the slit 15 is expanded by the syringe barrel 200, and the tongue piece 20 is pushed down.

  Further, in a state where the treatment tool 100 and the syringe barrel 200 are not inserted into the forceps plug 10, the slit 15 is reliably blocked by the tongue piece 20 that is in close contact with the back surface 14a of the closing membrane 14 as shown in FIG. Thus, for example, even when the subject burps and the pressure in the treatment instrument insertion channel 3 rises rapidly, the closed state of the forceps plug 10 is well maintained, and the body sewage or the like does not jet out.

  Therefore, even when the insertion / removal of the treatment instrument 100 or the like is repeated and a slight gap is generated in the slit 15, the spilling of the internal body fluid is prevented by the blocking action by the tongue piece 20, and the forceps plug 10 is discarded for a long time Can be used without.

  When the endoscopic examination is completed, the forceps plug 10 is removed from the treatment instrument insertion cap 30 of the endoscope, and the lid-like member 12 is removed from the upper end of the barrel-like member 11 as shown in FIG. Then, the closing film 14 formed on the lid-shaped member 12 side and the tongue piece 20 formed on the barrel-shaped member 11 side are separated from each other, so that the opposing surfaces of the closing film 14 and the tongue piece 20 are separated. The entire forceps plug 10 can be easily and reliably cleaned and disinfected.

  Further, the forceps plug 10 of the present invention is formed by separating the closing membrane 14 and the tongue piece 20 into the lid-like member 12 and the barrel-like member 11, so that both the closing membrane 14 and the tongue piece 20 are the lid-like member. Compared with the case of forming in 12, it is much easier to manufacture.

  The present invention is not limited to the above-described embodiment. For example, a slight gap is provided between the back surface 14a of the closing film 14 and the tongue piece 20 as in the second embodiment shown in FIG. May be. Even in this configuration, when the pressure in the treatment instrument insertion channel 3 rises, the tongue piece 20 is pressed against the back surface 14a of the closing membrane 14 by the pressure, and the closing membrane 14 is completely closed.

  Further, as shown in FIG. 8 and FIG. 9 illustrating the IX-IX cross section, a projection 22 small enough to be able to get over the tongue piece 20 while being elastically deformed is adjacent to the back surface of the tongue piece 20. It may be formed on the inner peripheral wall of the shaped member 11.

  With this configuration, the close contact state of the tongue piece 20 with respect to the back surface 14a of the closure film 14 is maintained well, and the closed state of the slit 15 is further improved even when the internal pressure of the treatment instrument insertion channel 3 is not increased. Can be sure.

It is side surface sectional drawing of the state in which the forceps plug of the endoscope of the 1st Example of this invention was attached to the endoscope. 1 is a side view illustrating an overall configuration of an endoscope according to a first embodiment of the present invention. It is a perspective view of the barrel-shaped member of the forceps stopper of the endoscope according to the first 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 1st Example of this invention. It is side surface sectional drawing of the state by which the injection cylinder was inserted in the forceps stopper of the endoscope of 1st Example of this invention. It is side surface sectional drawing of the state by which the forceps plug of the endoscope of 1st Example of this invention is removed from an endoscope, and is wash | cleaned and disinfected. It is side surface sectional drawing of the forceps stopper of the endoscope of the 2nd Example of this invention. It is side surface sectional drawing of the forceps stopper of the endoscope of the 3rd Example of this invention. It is IX-IX sectional drawing in FIG. 8 of the forceps stopper of the endoscope of the 3rd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Treatment tool insertion channel 10 Forceps stopper 11 Barrel-shaped member 12 Lid-like member 14 Closure membrane 14a Back surface 15 Slit 18 Connection belt 20 Tongue piece 21 Connection part 30 Treatment tool insertion base 100 Treatment tool 200 Injection cylinder

Claims (3)

A closure membrane in which slits are formed that are elastically deformed and expanded when the treatment instrument is passed, and the treatment instrument is elastically deformed by being placed at a position facing the back surface of the closure membrane. In a forceps plug of an endoscope having a tongue piece that is pushed down with one end side as a fulcrum,
The forceps plug includes a barrel-shaped member made of a resilient material that is detachably attached to an entrance portion of the treatment instrument insertion channel of the endoscope, and a resilient material that is detachable with respect to the barrel-shaped member. and a lid-like member is provided comprising, the closure film is formed on the lid member, the tongue is formed in the barrel-shaped member, so that the back surface and the tongue of the closure film into close contact in a normal state An endoscopic forceps plug characterized by being arranged .   The forceps plug of an endoscope according to claim 1, wherein the tongue piece is formed so as to project in a cantilevered state from the inner peripheral wall of the barrel-shaped member. The forceps plug for an endoscope according to claim 1 or 2 , wherein a protrusion that can be overcome while the tongue piece is elastically deformed is formed on an inner peripheral wall of the barrel-like member adjacent to the back surface of the tongue piece.

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