JP2009050434A - Saliva suction system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a saliva suction system capable of sucking saliva in an oral cavity at a desired timing for a patient, and allowing an operator to concentrate in an endoscopic surgery. <P>SOLUTION: The saliva suction system includes a suction pipe 110 having one end inserted into the oral cavity during the endoscopic surgery through the oral cavity and the other end connected to a suction device 101 and sucking the saliva in the oral cavity by a suction force of the suction device, and a changeover device 115 provided at an intermediate part of the suction pipe and capable of changing over between a sucking condition allowing the suction force of the suction device to reach one end side of the suction pipe and a non-sucking condition preventing the suction force from reaching the one end side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a saliva suction system used when an endoscope is inserted into a patient's gastrointestinal tract, bronchi, and the like.

  Conventionally, when an endoscope is inserted from the patient's mouth to examine the gastrointestinal tract, bronchi, etc., the patient holds the endoscope mouthpiece, and the operator inserts the endoscope insertion portion into the endoscope mouse. It was inserted into the oral cavity from the insertion guide hole of the piece, and the insertion part was sent to the patient's gastrointestinal tract or the like (Patent Documents 1 to 3).

In such conventional endoscopy, there is a problem that saliva tends to accumulate in the oral cavity of the patient. When saliva accumulates in the mouth, the patient not only feels uncomfortable (stress), but also tries to swallow the saliva, etc., and the swallowing movement causes a pharyngeal reflex that hinders endoscopy. End up.
Therefore, in the past, the surgeon grasps the suction pipe with one end connected to the suction device, and the surgeon inserts the other end of the suction pipe into the patient's oral cavity as necessary to aspirate the saliva accumulated in the oral cavity. Was.
Japanese Utility Model Publication No. 5-68503 JP 2000-237125 A JP 2000-245686 A

However, as described above, it is not easy for the surgeon to operate the endoscope while taking the suction pipe, which is a separate member from the endoscope, into and out of the patient's oral cavity. It was difficult to concentrate on.
In addition, since it is difficult for the operator to completely grasp the condition in the oral cavity of the patient, it is difficult to suck saliva at the timing when the patient wants to suck.

  An object of the present invention is to provide a saliva suction system that can suck saliva in the oral cavity at a timing when a patient desires suction, and that allows an operator to concentrate on endoscopy.

  The saliva suction system of the present invention is a suction device in which one end is inserted into the oral cavity and the other end is connected to a suction device during endoscopic surgery through the oral cavity, and the saliva in the oral cavity is sucked by the suction force of the suction device. A pipe, a suckable state provided in an intermediate portion of the suction pipe, allowing the suction force by the suction device to reach the one end side of the suction pipe, and preventing the suction force from reaching the one end side And a switching device that can be switched to an incapable suction state.

  A housing connected to the suction pipe; a projecting position for supporting the switching device in the suckable state; and a pushing position for bringing the switching device into the non-suckable state. And a urging means for always urging the button toward the protruding position.

  A cylindrical main body portion that is held by a patient's mouth and has an insertion guide hole through which the insertion portion of the endoscope is inserted as a through hole, and a pipe holding hole through which the suction pipe passes and holds the suction pipe It is preferable to have.

  Furthermore, an inner flange portion located inside the mouth and an outer flange portion located outside the mouth are formed on the outer peripheral portions of both ends in the axial direction of the cylindrical main body portion when attached to the mouth of the patient. The pipe holding hole is preferably formed in at least one of the inner flange portion and the outer flange portion.

  It is preferable to form a half-pipe-shaped guide groove for guiding the suction pipe between the outer flange portion and the inner flange portion on the peripheral surface of the cylindrical main body portion.

Since the switching device of the present invention is provided in the middle part of the suction pipe, it can be operated by the patient himself. Therefore, saliva can be sucked at a timing when the patient wants to suck. Furthermore, since it is not necessary to put the suction pipe in and out of the oral cavity as in the prior art, the suction operation can be performed easily.
Further, since it is not necessary for the surgeon to suck saliva as in the prior art, it is possible to concentrate on endoscopy.

  According to the second aspect of the present invention, it is possible to switch the switching device between the suckable state and the non-suckable state simply by moving the button to the protruding position and the pushing position. Therefore, the patient can easily suck saliva and stop the suction.

  According to the third aspect, since the suction pipe can be held by the endoscope mouthpiece held by the patient's mouth, the end of the suction pipe can be held at a predetermined position in the patient's mouth.

  According to the fourth aspect of the present invention, the insertion portion of the endoscope passes through the insertion guide hole of the cylindrical main body portion, and the suction pipe is held by the pipe holding hole formed in the outer portion of the cylindrical main body portion. Contact between the insertion portion of the endoscope and the suction pipe can be prevented. Therefore, the suction pipe can be prevented from interfering with endoscopy.

  If comprised like Claim 5, the retention strength of the suction pipe by the mouthpiece for endoscopes will improve.

Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.
The saliva suction system of the present embodiment includes an endoscope mouthpiece 10, a suction device 101, a flexible suction pipe 110, a switching device 115, and an endoscope 201.
As shown in FIG. 1, the suction pipe 110 that is detachably connected to the pipe connection portion (plug) 103 of the suction device 101 is detachably connected to the pipe connection portion (plug) 203 of the endoscope 201. Branches to the suction pipe 205 for the mouth and the suction pipes 111 and 112 for the mouthpiece.
The mouthpiece suction pipe is composed of two pipe members (a mouthpiece suction pipe 111 and a mouthpiece suction pipe 112), and communicates with each other by connecting opposite ends of the two to the switching device 115. As shown in the drawing, the mouthpiece suction pipe 112 is branched into two branch suction pipes 113 on the tip side.

The detailed structure of the switching device 115 for connecting the mouthpiece suction pipe 111 and the mouthpiece suction pipe 112 is as shown in FIGS.
The switching device 115 includes a metal housing 116 having a cylindrical shape, and a piston (button) 118 that is slidably fitted in a cylindrical concave portion 117 provided in the upper surface of the housing 116 so as to be slidable in the axial direction of the concave portion 117. A retainer (button) 119 fixed to the upper end of the piston 118; a cylindrical member 120 fixed coaxially with the piston 118 and the retainer 119 on the upper surface of the housing 116; and a bottom surface of the recess 117 and a lower surface of the retainer 119. A compression coil spring (biasing means) S that has been contracted.
A communication path 121 and a communication path 122 that extend in the radial direction of the housing 116 and communicate with the outer peripheral surface of the housing 116 and the recess 117 are formed inside the housing 116 so as to be coaxial. Further, in the communication path 121 and the communication path 122, the inner ends of the connection pipe 123 and the connection pipe 124 projecting to the outer peripheral side of the housing 116 are fitted and fixed, and the outer ends of the connection pipe 123 and the connection pipe 124 are fixed. The mouthpiece suction pipe 111 and the mouthpiece suction pipe 112 are detachably connected to each other. Further, a through passage 125 penetrating the piston 118 in the radial direction is formed in an intermediate portion in the longitudinal direction of the piston 118. Further, a concave portion 118a is formed at the end of the piston 118 opposite to the retainer 119, and a belt-like rubber G covering the concave portion 118a is fixed to the surface of the portion of the piston 118.
As shown in the drawing, the piston 118 and the retainer 119 are slidable between a projecting position (the position shown in FIGS. 2 and 3) and a pushing position (the position shown in FIG. 4) where the retainer 119 is inserted into the cylindrical member 120. In addition, since the compression coil spring S constantly urges the retainer 119 toward the protruding position, the piston 118 and the retainer 119 are always positioned at the protruding position.
When the piston 118 and the retainer 119 are positioned at the projecting position, as shown in FIG. 3, the rubber band G fixed to the piston 118 blocks the opening end of the communication path 122 (the communication path 121 and the communication path 122 are in communication with each other). Since it is shut off), the switching device 115 becomes incapable of suction. On the other hand, when the piston 118 and the retainer 119 are positioned at the push-in position, the passageway 125 of the piston 118 communicates with the communication path 121 and the communication path 122 in the housing 116, so that the switching device 115 includes the communication path 121, the communication path 122 and the connection pipe 123 and the connection pipe 124 communicate with each other via the through passage 125.

As shown in FIGS. 7 and 8, the endoscope mouthpiece 10 can be attached to the distal end portion of each branch suction pipe 113.
The endoscope mouthpiece 10 includes a cylindrical main body portion 11 that guides the flexible insertion portion 202 of the endoscope 201, an outer flange portion 13 as a restricting portion formed at both front and rear ends of the cylindrical main body portion 11, and And an inner flange portion 15. The cylindrical main body 11 is formed in a shape that allows the patient to easily bite (squeeze) the outer peripheral surface 11a with upper and lower teeth, for example, a frontal shape that is oblong or rounded at the corners. When the patient bites the outer peripheral surface 11a of the cylindrical main body portion 11 of the endoscope mouthpiece 10, the outer flange portion 13 is located outside the patient's oral cavity, and the inner flange portion 15 is located in the oral cavity. Since the teeth hit the outer flange portions 13 and 15, the endoscope mouthpiece 10 does not come off the mouth.
Further, the inside of the cylindrical main body portion 11 constitutes an insertion guide hole 11b for guiding insertion of the insertion portion 202 of the endoscope 201 and preventing the insertion portion 202 from being bitten by the patient.

The endoscope mouthpiece 10 is preferably made of a resin that is harmless to the human body and flexible. However, it is necessary for the cylindrical main body 11 to have a strength that is not easily crushed even if the patient bites it.
Moreover, the shape of the cylindrical main-body part 11, the outer flange part 13, and the inner flange part 15 is not limited to illustration embodiment. Further, the endoscope mouthpiece 10 can be cleaned and reused by forming it with a washable material such as silicon rubber.

As shown in FIGS. 5 and 6, the outer flange portion 13 and the inner flange portion 15 each have a pair of guide holes (pipe holding holes) 13a having a circular cross section for guiding and holding the pair of branch suction pipes 113, respectively. A pair of guide holes (pipe holding holes) 15a are formed. The guide hole 13a of the outer flange portion 13 is circular, but the guide hole 15a of the inner flange portion 15 has a C shape with a side cut and a smaller diameter than the guide hole 13a of the outer flange portion 13. Further, a pair of half-pipe shapes are formed on both side surfaces of the cylindrical main body 11 so as to be recessed along the contours of the left and right guide holes 13a and 15a and connect the left guide holes 13a and 15a and the right guide holes 13a and 15a, respectively. The guide groove 11c is formed.
The pair of branch suction pipes 113 are integrated with the endoscope mouthpiece 10 by being inserted through the pair of guide holes 13a, guide grooves 11c, and guide holes 15a from the outer flange portion 13 side. In the free state, the inner diameter of the guide hole 13a is slightly larger than the outer diameter of the branch suction pipe 113. However, in the free state, the inner diameter of the guide hole 15a is slightly smaller than the outer diameter of the branch suction pipe 113. Is inserted into the guide hole 15a, the guide hole 15a comes into elastic contact with the outer peripheral surface of the branch suction pipe 113. Therefore, unless the mouthpiece for endoscope 10 is intentionally moved in the axial direction of the branch suction pipe 113, the mouthpiece for endoscope 10 does not slide relative to the branch suction pipe 113.
In addition, you may form the guide hole 13a and the guide hole 15a in the shape of a mortar from which a diameter becomes small toward an inner (back surface) side from the outer (front surface) side. In this way, the branch suction pipe 113 can be more easily inserted.

Next, the saliva removal procedure using the endoscope mouthpiece 10 and the suction pipe 110 will be described.
FIG. 8 shows a state where the patient 301 holds the endoscope mouthpiece 10 integrated with the branch suction pipe 113. As shown in the figure, the insertion portion 202 of the endoscope 201 extends into the body cavity (oral cavity 303) of the patient 301 through the insertion guide hole 11b of the cylindrical main body 11, and the distal end portion of the branch suction pipe 113 is the oral cavity. 303. At this time, the drawing amount and the bending from the guide hole 15a of the branch suction pipe 113 are adjusted so that the tip of the branch suction pipe 113 is held in a position where the saliva is easily collected in the oral cavity 303, such as under the tongue of the patient 301. .
Although not shown, the patient 301 holds the switching device 115 with his / her hand.

When the suction device 101 is operated in this state, the suction force generated by the suction device 101 reaches the endoscope suction pipe 205 and the mouthpiece suction pipe 111. Accordingly, the suction force exerted on the endoscope suction pipe 205 side is the pipe connection portion 203, the suction tube 204 disposed in the endoscope 201 connected to the pipe connection portion 203, and the distal end surface of the insertion portion 202. It extends to the suction opening 206 (the tip of the suction tube 204) formed in the above. Therefore, secretion in the body cavity is sucked by the suction opening 206 of the endoscope 201.
On the other hand, when the suction force is applied to the mouthpiece suction pipe 111, the patient 301 does not push the piston 118 and the retainer 119 of the switching device 115 to the pushing position (when the mouthpiece is located at the protruding position). 3, the rubber band G provided on the piston 118 closes the opening end of the communication path 122 (since the communication between the communication path 121 and the communication path 122 is blocked), so that this suction force is applied to the mouthpiece suction pipe 112. The suction force on the endoscope suction pipe 205 side is not weakened.
However, when the patient 301 pushes the piston 118 and the retainer 119 to the pushing position against the urging force of the compression coil spring S, the through passage 125 of the piston 118 communicates with the communication passage 121 and the communication passage 122 as shown in FIG. Therefore, the suction force reaching the suction pipe 110 also reaches the mouthpiece suction pipe 112 (a pair of branch suction pipes 113). Therefore, saliva in the oral cavity 303 is aspirated from the distal ends of the pair of branch suction pipes 113.

Thus, in this embodiment, since the patient 301 can operate the switching device 115 according to his / her own will, the saliva in the oral cavity 303 can be sucked at a timing when the patient 301 himself / herself wants to suck. Further, since it is not necessary to put the branch suction pipe 113 in and out of the oral cavity 303 as in the prior art, the suction work can be easily performed.
Further, since it is not necessary for the surgeon to suck saliva as in the prior art, it is possible to concentrate on endoscopy.
Furthermore, the insertion part 202 of the endoscope 201 passes through the insertion guide hole 11b of the endoscope mouthpiece 10, and the pair of branch suction pipes 113 are a guide hole 13a and a guide groove located on the outer peripheral side of the cylindrical main body part 11. 11c and the guide hole 15a, the contact between the insertion portion 202 of the endoscope 201 and the branch suction pipe 113 can be prevented. Therefore, the branch suction pipe 113 does not hinder endoscopy by the operator.

Next, a second embodiment of the present invention will be described with reference to FIGS. The same members as those in the first embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
Although 1st Embodiment was the structure which hold | maintains the branch suction pipe 113 substantially parallel with respect to the central axis O of the cylindrical cylindrical main-body part 11 with the mouthpiece 10 for endoscopes, this embodiment is In this embodiment, the branch suction pipe 113 is held obliquely with respect to the central axis O of the cylindrical main body 11.
The guide hole 13 a ′, the guide groove 11 c ′, and the guide hole 15 a ′ of the endoscope mouthpiece 10 ′ of the second embodiment are inclined with respect to the central axis O of the cylindrical main body 11. More specifically, it is lowered from the guide hole 13a ′ toward the guide hole 15a ′ in a normal use state.
By holding the branch suction pipe 113 obliquely in this way, it becomes easier to dispose the distal end portion of the branch suction pipe 113 drawn into the oral cavity from the guide hole 15a ′ under the tongue. Therefore, the patient 301 can suck the saliva in the oral cavity 303 more easily and reliably.

As mentioned above, although this invention was demonstrated using 1st and 2nd embodiment, this invention can be implemented, giving various changes.
For example, the suction pipe 110 is branched into mouthpiece suction pipes 111 and 112 and an endoscope suction pipe 205, but the saliva suction pipes independent of each other (the mouthpiece suction pipe 111 and the mouthpiece suction pipe). The pipe 112 may be divided into an endoscope connecting pipe (an endoscope suction pipe 205), and each pipe may be individually connected to the suction device 101. Further, the number of branch suction pipes 113 may be one or three or more.
Alternatively, the guide hole 13a (13a ′) may be a front C-shaped or wide notch that is open on the side.

  Furthermore, an engagement part may be provided in the outer peripheral surface of the mouthpiece 10 for endoscopes and the branch suction pipe 113, and these engagement parts may be engaged with each other.

Alternatively, the guide body 13a (13a ') and the guide hole 15a (15a') may be formed such that the lateral width of the cylindrical main body 11 is increased and the branch suction pipe 113 passes through the insertion guide hole 11b.
Further, the guide hole 13a (13a ′) and the guide hole 15a (15a ′) may be formed only on either the left or right side. Further, at least one of the upper, lower, left, and right sides, or the upper, lower, left, and right sides may be provided instead of the left and right sides.
Alternatively, the guide hole 13a (13a ′) or the guide hole 15a (15a ′) may be formed only in one of the outer flange portion 13 and the inner flange portion 15.
Furthermore, the guide mouth 13a (13a '), the guide hole 15a (15a') and the guide groove 11c (11c ') are not formed in the endoscope mouthpiece 10, and the branch suction pipe 113 is connected to the endoscope mouthpiece 10. It may be inserted into the insertion guide hole 11b.

It is the whole figure except the mouthpiece of the saliva suction system of a 1st embodiment of the present invention. It is a perspective view of a switching device. It is a vertical side view of a switching device when a retainer and a piston exist in a protrusion position. It is a vertical side view of a switching device when a retainer and a piston exist in a pushing position. It is a perspective view of the mouthpiece for endoscopes. (A) is a front view, (B) is a left side view, (C) is a rear view, and (D) is a plan view of an endoscope mouthpiece. It is a perspective view which shows the state which attached the suction pipe to the mouthpiece for endoscopes. It is a figure which shows typically the use condition of the mouthpiece for endoscopes, and a suction pipe. It is a perspective view of the mouthpiece for endoscopes of the 2nd embodiment of the present invention. (A) is a front view, (B) is a left side view, (C) is a rear view, and (D) is a plan view of an endoscope mouthpiece of the second embodiment. It is a perspective view which shows the state which attached | subjected the suction pipe to the mouthpiece for endoscopes of 2nd Embodiment. It is a figure which shows typically the use condition of the mouthpiece for endoscopes and suction pipe of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Endoscope mouthpiece 11 Cylindrical main-body part 11b Insertion guide hole 11c Guide groove 13 Outer flange part (regulation part)
13a Guide hole (Pipe holding hole)
15 Inner flange (regulator)
15a Guide hole (pipe holding hole)
101 Suction Device 110 Suction Pipe 111 112 Mouthpiece Suction Pipe 113 Branch Suction Pipe 115 Switching Device 116 Housing 117 Recess 118 Piston (Button)
119 Retainer (button)
120 Cylindrical member 121 122 Communication path 123 124 Connection pipe 125 Through path 201 Endoscope 202 Insertion part 203 Pipe connection part 204 Suction tube 205 Endoscope suction pipe 206 Suction opening 301 Patient 303 Oral cavity G Band-shaped rubber S Compression Coil spring (biasing means)

Claims (5)

One end is inserted into the oral cavity during endoscopic surgery through the oral cavity and the other end is connected to a suction device, and a suction pipe that sucks saliva in the oral cavity by the suction force of the suction device;
A suckable state provided at an intermediate portion of the suction pipe that allows the suction force by the suction device to reach the one end side of the suction pipe, and a suction impossible to prevent the suction force from reaching the one end side A switching device that can switch between states,
A saliva suction system comprising: The saliva aspiration system according to claim 1,
The switching device is
A housing connected to the suction pipe;
A button that is supported by the housing so as to be able to move in and out, and is movable to a projecting position for bringing the switching device into the suckable state and a pushing position for bringing the switching device into the non-suckable state;
A biasing means for constantly biasing the button toward the protruding position;
Saliva suction system comprising. The saliva suction system according to claim 1 or 2,
A cylindrical main body portion that has an insertion guide hole as a through hole that is grasped by a patient's mouth and through which the insertion portion of the endoscope passes.
A pipe holding hole through which the suction pipe passes and holds the suction pipe;
A saliva suction system comprising an endoscope mouthpiece having the above. The saliva suction system according to claim 3,
On the outer periphery of both ends of the cylindrical main body in the axial direction, an inner flange portion located inside the mouth and an outer flange portion located outside the mouth when mounted on the patient's mouth, respectively,
A saliva suction system in which the pipe holding hole is formed in at least one of the inner flange portion and the outer flange portion. The saliva suction system according to claim 3 or 4,
A saliva suction system in which a half-pipe-shaped guide groove for guiding the suction pipe is formed between the outer flange portion and the inner flange portion on the peripheral surface of the cylindrical main body portion.

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