JP6386858B2 - Medical long body insertion aid and medical long body set - Google Patents

Description

  The present invention relates to a medical long body insertion aid and a medical long body set.

  In order to prevent infectious diseases in the procedure of inserting a medical long body such as a catheter into the body, pathogens such as bacteria are prevented from adhering to the medical long body and moving into the body together with the medical long body. Attempts have been made.

  For example, the invention of Patent Document 1 prevents bacteria from moving to the back side of the urethra together with the urine catheter in the procedure of inserting the urinary catheter from the mouth of the external urethra into the bladder.

  Specifically, in Patent Document 1, before inserting the urinary catheter, a cylindrical introducer is inserted into the outer urethral opening, and the urinary catheter is inserted into the urethra through the introducer.

  A near-external region several centimeters inside the urethra from the outer urethral opening is a place where bacteria are present at a high concentration. According to the invention of Patent Document 1, it is introduced between the urinary catheter and the inner surface of the urethra in the near-outer region. Since the instrument is inserted, it is difficult for bacteria to adhere to the urinary catheter. Therefore, bacteria existing in the near-outer region are difficult to move to the back side of the urethra together with the urinary catheter, and the risk of infection is reduced.

Special table 2010-533562 gazette

  However, in the conventional introducer, since the cap is removed and the entire introducer is exposed outside the body in use, there is a possibility that the hygienic state of the introducer may be impaired by contact with an unclean one.

  The present invention has been made in view of such circumstances, and reduces the risk of infectious diseases with a sheath covering the medical elongated body, and prevents the sanitary state of the sheath from being easily damaged. An instrument and a medical elongate set are provided.

In order to achieve the above object, the medical long body insertion aid of the present invention includes a main body portion in which an insertion hole through which the medical long body can be inserted is formed, and at least a part of the main body portion is accommodated in the main body portion. A sheath that protrudes from the insertion hole while covering the medical elongated body as the medical elongated body is inserted into the insertion hole, and the sheath that is provided and protruded from the main body portion is inserted into the insertion hole. possess a support portion for supporting so as not to escape from the hole, and wherein the supporting portion are gaps formed to the insertion hole communicates with said sheath, a thin drawn into the insertion hole through the gap And a hook portion provided at an end of the thin film. The hook portion has a width larger than the width of the gap and is hooked in the gap .

  According to the medical long body insertion aid configured as described above, since the medical long body is covered with the sheath, pathogens are unlikely to adhere to the medical long body. Therefore, it is difficult for the pathogen to move into the body together with the medical elongated body, and the risk of infectious diseases can be reduced. In addition, the medical long body insertion aid configured as described above can be used in a state where at least a part of the sheath is housed in the main body, so that the sheath is difficult to come into contact with an unclean object, and the hygiene of the sheath The state is hard to be damaged.

  Further, if a lubricant is applied to the inside of the sheath covering the medical long body, the lubricant applied to the sheath is inserted into the body along with the insertion of the medical long body into the body. It adheres to the outer surface of the scale while spreading. For this reason, it is possible to save the burden of separately applying the lubricant before inserting the long medical body into the body, reducing the work load, and applying the lubricant uniformly.

  Moreover, since it has the fastener which fastens the said medical elongate body, since a medical elongate body is fixed, it can prevent that a pathogen moves by the position shift of a medical elongate body.

  In addition, a gap communicating with the insertion hole is formed in the support portion, and the sheath includes a thin film drawn into the insertion hole through the gap, and a hook portion provided at an end of the thin film. The hook portion has a width larger than the width of the gap, and if the hook portion is caught in the gap, the sheath is strongly held by the support portion, so that the sheath can be prevented from coming off more effectively. it can.

  In addition, if the pair of edge portions that are opposed to each other and form the gap have a curved shape, the thin film of the sheath is not easily caught on the edge portion, so that the thin film can be pulled out smoothly.

  Further, if the pair of edge portions are spread so as to be separated from each other on the side where the thin film is drawn with respect to the gap, a force in the direction of closing the gap is applied to the edge portion, and the hooking portion of the sheath is Since it becomes easier to be caught in the gap, the sheath is prevented from coming off more effectively.

  In addition, if the main body is formed of an elastic body, when the medical long body is pushed into the body, the main body that contacts the patient's body surface is deformed, and the body surface is not pressed. Alleviated. Therefore, the burden on the patient is reduced.

  In addition, if an adhesive layer is provided on the outer surface of the main body portion where the insertion hole is formed, the main body portion is fixed to the body surface and is not easily displaced from a predetermined position. The troublesomeness of repairing or holding the main body in a predetermined position by hand is reduced. Therefore, the user can proceed with the procedure smoothly.

  Moreover, according to the medical elongate body set which has the medical elongate body insertion auxiliary tool which has either of the structure enumerated above, and the said medical elongate body, The same effect as that obtained by such a configuration can be obtained.

  Further, in the medical elongated body set, the distal end of the sheath is pushed into the medical elongated body in a direction opposite to a protruding direction in which the sheath projects from the insertion hole, By inserting the medical elongated body in the protruding direction, the medical elongated body may be covered while being turned back so as to be pushed back from the pushed-in state. In this way, the protruding portion of the sheath that is pushed out together with the insertion of the medical long body is pushed into the inside of the medical long body, and the sheath that has not been in contact with the filth is that of the medical long body. It is constituted by being flipped sequentially with insertion. As a result, since the protrusion of the sheath is kept in a state in which the attachment of the pathogen is suppressed, the movement of the pathogen into the body is further effectively prevented.

It is sectional drawing of the catheter insertion auxiliary tool of 1st Embodiment. It is sectional drawing which follows the 2-2 line of FIG. It is a figure which shows the catheter set of 1st Embodiment. It is a figure which shows the state which the front-end | tip of the urinary catheter was inserted in the catheter insertion auxiliary tool of 1st Embodiment, and protruded with the sheath. It is a figure which shows the state by which the catheter insertion assistance tool and urinary catheter of 1st Embodiment were arrange | positioned in the external urethral opening. It is a figure which shows a mode that a urinary catheter is inserted in a urethra while being covered with the sheath of the catheter insertion auxiliary tool of 1st Embodiment. It is a figure which shows a mode that the base end side of a sheath is hooked and hold | maintained at a support part. It is a figure which shows a mode that a urine catheter penetrates the sheath of the catheter insertion auxiliary tool of 1st Embodiment, and is inserted in the back of a urethra. It is a figure which shows the catheter set of 2nd Embodiment. It is a figure which shows a mode that a urinary catheter is fixed with the fastener of the catheter insertion auxiliary tool of 2nd Embodiment. It is a figure which shows the catheter set of 3rd Embodiment. It is a figure which shows a mode that the front-end | tip of a urinary catheter is inserted in the catheter insertion auxiliary tool of 3rd Embodiment. It is a figure which shows a mode that a sheath protrudes from the catheter insertion auxiliary tool of 3rd Embodiment by pushing in a urine catheter. It is a figure which shows a mode that the sheath of the catheter insertion auxiliary tool of 3rd Embodiment protrudes in a urethra. It is a figure which shows a mode that a urinary catheter is inserted in a urethra through the sheath protruded from the catheter insertion auxiliary tool of 3rd Embodiment. It is a figure which shows the catheter set of 4th Embodiment. It is a figure which shows the state which aligned the catheter insertion auxiliary tool of 4th Embodiment, the urinary catheter, and the wire which sets these. It is a figure which shows a mode that the sheath of the catheter insertion auxiliary tool of 4th Embodiment is inserted in a urine catheter by pushing in a wire. It is a figure which shows the state in which the sheath of the catheter insertion auxiliary tool of 4th Embodiment was further inserted in the urine catheter. It is a figure which shows a mode that a urinary catheter is inserted in the penetration hole of the catheter insertion auxiliary tool of 4th Embodiment from the state in which the sheath was most inserted in the urinary catheter. It is a figure which shows the state which the front-end | tip of the urinary catheter was inserted in the penetration hole of the catheter insertion auxiliary tool of 4th Embodiment, and protruded with the sheath. It is a figure which shows the state by which the catheter insertion auxiliary tool and urinary catheter of 4th Embodiment were arrange | positioned at the external urethral opening. It is a figure which shows a mode that a urinary catheter is inserted in a urethra, covered with the sheath of the catheter insertion auxiliary tool of 4th Embodiment. It is a figure which shows a state when the sheath of the catheter insertion auxiliary tool of 4th Embodiment protrudes most in the urethra. It is a figure which shows a mode that a urinary catheter penetrates the sheath of the catheter insertion auxiliary tool of 4th Embodiment, and is inserted in the back of a urethra. It is sectional drawing which shows the modification of a support part. It is sectional drawing which shows the modification of a support part. It is sectional drawing which shows the modification of a support part. It is sectional drawing which shows the modification of a support part. It is sectional drawing which shows the modification of a support part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the dimension ratio of drawing is exaggerated on account of description, and differs from an actual ratio.

<First Embodiment>
As shown in FIG. 1, the catheter insertion assisting device 100 (medical long body insertion assisting device) of the first embodiment includes a main body portion 110, a support portion 120, an adhesive layer 130, protective films 140 and 150, and the like. And a sheath 160.

  The main body 110 is formed of an elastic body. The elastic body is, for example, a sponge, but is not limited thereto, and may be, for example, rubber. An insertion hole 111 is formed in the main body 110. The insertion hole 111 passes through the main body 110.

  The support part 120 is provided in the main body part 110 and supports the sheath 160. A gap 121 communicating with the insertion hole 111 is formed in the support portion 120.

  The adhesive layer 130 is provided on the outer surface 112 in which the insertion hole 111 is formed in the main body 110.

  The protective film 140 covers the entire adhesive layer 130 and closes the opening of the insertion hole 111. The protective film 140 is adhered to the adhesive layer 130 with an adhesive force that can be peeled off by hand. The protective film 140 has a knob 141 protruding from the outer periphery of the main body 110 so that it can be easily peeled off.

  The protective film 140 prevents foreign matter from adhering to the surface of the adhesive layer 130 and reducing the adhesive force. The protective film 140 prevents foreign matter from entering the main body 110 by closing the opening of the insertion hole 111.

  The protective film 150 covers the entire outer surface 113 on which the insertion hole 111 is formed, and closes the opening of the insertion hole 111 on the side opposite to the protection film 140. The protective film 150 is adhered to the outer surface 113 with an adhesive force that can be peeled off by hand. The protective film 150 has a knob 151 protruding from the outer periphery of the main body 110 so as to be easily peeled off.

  The protective film 150 prevents foreign matter from entering the inside of the main body 110 by closing the opening of the insertion hole 111.

  The sheath 160 is housed inside the main body 110. The sheath 160 is sterilized. The sheath 160 includes a roll portion 161 configured by winding a thin film around a core material 166 (hook portion), and a thin film 162 drawn from the roll portion 161.

  The thin film 162 is drawn into the insertion hole 111 through the gap 121. The thin film 162 is disposed so as to close the insertion hole 111. When the thin film 162 is pressed in a direction protruding from the insertion hole 111, the thin film 162 is deformed into a bag shape while being pulled out from the roll portion 161. In a state where the thin film 162 does not protrude from the insertion hole 111, the entire sheath 160 is accommodated inside the main body 110.

  A lubricant 163 is applied to the sheath 160. The lubricant 163 is applied to both surfaces of the thin film 162, but is not limited thereto. The lubricant 163 may be applied only to one surface of the thin film 162 that is an inner portion of the thin film 162 that protrudes from the insertion hole 111 and deforms into a bag shape. The lubricant 163 is preferably applied in a large amount.

  Examples of the material constituting the lubricant 163 include glycerin, polyethylene glycol, polyprene glycol, macrogol, carbomer, polyvinyl alcohol, sodium polyacrylate, sodium alginate, sodium hyaluronate, agarose, and the like.

  As shown in FIG. 2, the roll part 161 and the core material 166 are annular, and the thin film 162 is provided inside the roll part 161. A weakened portion 164 is formed in the central portion of the thin film 162. The fragile portion 164 is, for example, a perforated cut, but is not limited thereto.

  As shown in FIG. 2, two support parts 120 are provided apart from each other in the circumferential direction of the roll part 161, but the present invention is not limited to this, and three or more support parts 120 may be provided. Further, the support part 120 may be provided over the entire circumferential direction of the roll part 161.

  As shown in FIG. 3, the catheter set 180 (medical long body set) of the embodiment includes a catheter insertion aid 100 and a urinary catheter 190 (medical long body).

  The urinary catheter 190 is hollow and has a tube shape. The urinary catheter 190 is flexible. An opening 191 is formed on the outer periphery near the distal end of the urinary catheter 190. An opening is also formed at the proximal end 192 of the urinary catheter 190. The opening 191 communicates with the inside of the urinary catheter 190 and the opening formed in the proximal end 192.

  Next, how to use the catheter insertion aid 100 and the urinary catheter 190 will be described.

  The urinary catheter 190 is used by being inserted through the insertion hole 111 of the catheter insertion aid 100. The user peels off the protective films 140 and 150 and inserts the urinary catheter 190 into the insertion hole 111 from the outer surface 113 side.

  As shown in FIG. 4, as the urinary catheter 190 is inserted into the insertion hole 111, the thin film 162 of the sheath 160 is pulled out from the roll portion 161 and protrudes from the insertion hole 111 while covering the urinary catheter 190. The support part 120 supports the sheath 160 so as not to come out of the insertion hole 111.

  When the user inserts the urinary catheter 190 to the extent that the distal end of the urinary catheter 190 and the outer peripheral portion in the vicinity thereof slightly protrude from the insertion hole 111, the user maintains the state. At this time, since most of the sheath 160 is housed inside the main body 110, an unclean object is difficult to contact the sheath 160.

  As shown in FIG. 5, the user places the catheter insertion assisting tool 100 and the urinary catheter 190 in the outer urethral opening P1 of the penis P in that state. Since the distal end of the urinary catheter 190 protrudes from the insertion hole 111, the urinary catheter 190 can be easily placed in alignment with the external urethral opening P1, and the procedure can be smoothly advanced.

  In the urethra P2, a region P3 (a part indicated by a large number of points in the figure, which is indicated by a number of points in the figure, hereinafter simply referred to as the near-outer region P3) from the outer urethral orifice P1 has a high concentration of bacteria. However, since the sheath 160 covers the distal end of the urinary catheter 190, bacteria do not adhere to the urinary catheter 190.

  The user adheres the adhesive layer 130 to the tip of the penis P and fixes the main body 110 to the penis P. The adhesive layer 130 is adhered to the tip of the penis P with an adhesive force that can be peeled off by hand.

  After placing the catheter insertion aid 100 and the urinary catheter 190 at the outer urethral opening P1, the user pushes the urinary catheter 190 and advances the urinary catheter 190 to the back side of the urethra P2.

  As shown in FIG. 6, as the urinary catheter 190 is pushed, the thin film 162 of the sheath 160 is pushed by the tip of the urinary catheter 190 and pulled out into the urethra P2. Since the thin film 162 is housed in the main body 110 before being pulled out, the thin film 162 is kept in a sterilized state without being exposed to an external environment outside the body.

  The drawn thin film 162 has an elongated cylindrical bag shape and covers the distal end of the urinary catheter 190 and the outer periphery of the urinary catheter 190.

  As the urinary catheter 190 moves to the back side of the urethra P2, the bag-like thin film 162 expands in the depth direction. When the thin film 162 is pulled out most, the distal end of the sheath 160 is located on the deeper side of the urethra P2 than the near-outer region P3.

  A fragile portion 164 is formed at the distal end of the sheath 160. For this reason, the front-end | tip of the sheath 160 is easy to tear compared with the part of the base end side rather than the front-end | tip. Accordingly, when the urinary catheter 190 is further pushed in when the thin film 162 is pulled out most, the distal end of the sheath 160 is broken, and the urinary catheter 190 penetrates through the sheath 160. At this time, since the proximal end side of the sheath 160 is hooked and held by the support portion 120, the sheath 160 remains in the near-external region P3 without being detached from the main body portion 110.

  The weakened portion 164 at the distal end of the sheath 160 is not limited to the cut, and may be configured by forming the distal end of the sheath 160 with a water-soluble material, for example. In this case, for example, by supplying water to the distal end of the sheath 160 from the opening 191 on the distal end side of the urinary catheter 190, the distal end of the sheath 160 is easily broken. Moreover, the weak part 164 may be comprised by making the film thickness of the sheath 160 thin, capping with glue, opening a pinhole, or these combinations, for example.

  As shown in FIG. 7, the core member 166 at the proximal end of the sheath 160 has a width L <b> 2 that is larger than the width L <b> 1 of the gap 121 and is caught in the gap 121. As a result, the sheath 160 is held by the support portion 120. The core material 166 as the hooking portion only needs to be caught in the gap 121, and the cross-sectional shape of the core material 166 is not limited to a perfect circle shape as illustrated. The cross-sectional shape of the core material 166 may be an elliptical shape or a polygonal shape.

  As shown in FIG. 8, the urinary catheter 190 that has penetrated the distal end of the sheath 160 is further pushed in and moves to the bladder located in the back of the urethra P2.

  When the urinary catheter 190 passes through the near-external region P3, the urinary catheter 190 is covered with the sheath 160, so that bacteria present at a high concentration in the near-external region P3 do not adhere to the urinary catheter 190.

  On the other hand, since the lubricant 163 is applied to the inside of the sheath 160, the lubricant 163 adheres to the urinary catheter 190 when the urine catheter 190 passes through the near-external region P3 while being covered by the sheath 160. Since the lubricant 163 is applied to the entire inner circumference of the sheath 160, the lubricant 163 adheres to the entire circumference of the outer circumference of the urinary catheter 190. By applying the lubricant 163 to the surface of the urinary catheter 190, the urinary catheter 190 can move smoothly in the urinary tract P2.

  When the opening 191 at the distal end of the urinary catheter 190 reaches the bladder, the user stops inserting the urinary catheter 190. The urine collected in the bladder flows into the urinary catheter 190 through the opening 191 and is discharged from the base end side of the urinary catheter 190 to the outside of the body.

  Next, the function and effect of this embodiment will be described.

  The catheter insertion aid 100 of the present embodiment covers the urinary catheter 190 that passes through the near-external region P3 with a sheath 160. For this reason, bacteria present at a high concentration in the near-outer region P3 do not adhere to the urinary catheter 190. Therefore, bacteria do not move to the back side of the urethra P2 together with the urinary catheter 190, and the risk of infection associated with the insertion of the urinary catheter 190 can be reduced.

  Further, since the catheter insertion aid 100 can be used in a state where at least a part of the sheath 160 is housed in the main body 110, the sheath 160 is difficult to come into contact with an unclean object outside the body, and the hygienic state of the sheath 160 is impaired. It's difficult.

  In the catheter insertion aid 100, when not in use, the sheath 160 is housed in the main body 110 in a state where the thin film 162 is wound around the roll portion 161 and becomes small, so that the catheter insertion aid 100 can be made compact. .

  As the urinary catheter 190 is inserted into the urinary tract P2, the lubricant 163 inside the sheath 160 spreads and adheres to the surface of the urinary catheter 190. For this reason, the trouble of separately applying the lubricant 163 before inserting the urinary catheter 190 into the urinary tract P2 can be saved, the work load can be reduced, and the lubricant 163 can be uniformly applied to the urinary catheter 190.

  In the sheath 160, the core member 166 has a width L <b> 2 that is larger than the width L <b> 1 of the gap 121 and is caught in the gap 121. As a result, the sheath 160 is strongly held by the support portion 120, so that the effect of preventing the sheath 160 from coming off is high.

  When the urinary catheter 190 is pushed into the urethra P2, the main body 110 is pressed against the distal end of the penis P, but the main body 110 is formed by an elastic body, so that it deforms and presses against the body surface. To ease. Therefore, the burden on the patient is reduced.

  The main body 110 is bonded and fixed to the tip of the penis P by the adhesive layer 130 and is not easily displaced from a predetermined position. For this reason, the trouble of correcting the position of the main body 110 or holding the main body 110 in a predetermined position by hand is reduced, and the user can proceed with the procedure smoothly.

Second Embodiment
As shown in FIG. 9, the catheter insertion aid 200 of the second embodiment differs from the catheter insertion aid 100 of the first embodiment in that it has a fastener 270 and a mounting portion 275.

  The catheter set 280 of the present embodiment includes a urinary catheter 290 having a configuration different from that of the urinary catheter 190 of the first embodiment, and a catheter insertion aid 200.

  The fastener 270 includes an extension portion 271 that extends substantially parallel to each other, and a base portion 272 that is formed integrally with the base end side of the extension portion 271. The fastener 270 has a pair of claws 273 facing each other at the tip of the extension 271. The fastener 270 has a pair of claws 274 facing each other in the middle between the claws 273 and the base 272.

  The mounting portion 275 protrudes from the outer surface 113 of the main body portion 110 and is bent in a direction substantially parallel to the outer surface 113. The fastener 270 is detachable in the gap between the mounting portion 275 and the outer surface 113.

  The catheter insertion assisting tool 200 is the same as the catheter insertion assisting tool 100 of the first embodiment except for the fastener 270 and the mounting portion 275. Is omitted.

  The urinary catheter 290 is different from the first embodiment in that a groove 291 is formed on the outer periphery on the proximal end side. About another structure, the urinary catheter 290 is the same as that of the urinary catheter 190 of 1st Embodiment. Common components are denoted by the same reference numerals in the drawings, and redundant description is omitted here.

  The catheter insertion aid 200 and the urinary catheter 290 are used in the same manner of use as in the first embodiment, but differ from the first embodiment in that the urinary catheter 290 is fastened by the fastener 270.

  As shown in FIG. 10, the urinary catheter 290 is fastened by the fastener 270 in a state where the urinary catheter 290 is inserted into the urethra P2 until the distal end reaches the bladder.

  The user passes the urinary catheter 290 through the insertion hole 111 with the fastener 270 removed from the mounting portion 275. After moving the urinary catheter 290 to the bladder, the user inserts a fastener 270 into the gap between the mounting portion 275 and the outer surface 113 to fix the urinary catheter 290 so as not to move relative to the main body 110.

  The fastener 270 is prevented from coming off between the mounting portion 275 and the outer surface 113 when the claw 273 is caught by the mounting portion 275. The urinary catheter 290 is fastened by the nail 274 fitting into the groove 291 of the urinary catheter 290.

  Unlike the present embodiment, when the urinary catheter 290 is indwelled in the urethra P2 without using the catheter insertion aid 200, if the urinary catheter 290 is displaced from the indwelling position to the back side of the urethra P2, the near external region P3. Thus, the bacteria attached to the urinary catheter 290 move to the back side of the urethra P2 along with the positional shift of the urinary catheter 290.

  On the other hand, in the present embodiment, since the urinary catheter 290 is fixed by the fastener 270, it is possible to prevent bacteria from moving to the back side of the urethra P2 due to the displacement of the urinary catheter 290.

  Moreover, since the catheter insertion assisting tool 200 of the present embodiment has the same configuration as the catheter insertion assisting tool 100 of the first embodiment, the same operational effects as the first embodiment are achieved.

  In this embodiment, the urinary catheter 190 of the first embodiment without the groove 291 may be used instead of the urinary catheter 290. In this case, the fastener 270 is pressed and fixed so that the outer periphery of the urinary catheter 190 is sandwiched between the claws 274.

<Third Embodiment>
As shown in FIG. 11, in the catheter insertion aid 300 of the third embodiment, the configuration of the main body 310, the support 320, and the sheath 360 is the same as the main body 110, the support 120, and the sheath 160 of the first embodiment. And different. Since the adhesive layer 130 and the protective films 140 and 150 are the same as those in the first embodiment, they are denoted by the same reference numerals in the drawing, and redundant description is omitted.

  The catheter set 380 of the present embodiment includes a catheter insertion assisting tool 300 and a urinary catheter 190. Since the urinary catheter 190 is the same as that of the first embodiment, the same reference numerals are given in the figure, and redundant description is omitted.

  The main body 310 is formed of an elastic body as in the first embodiment. The body portion 310 is formed with an insertion hole 311 through which the urinary catheter 190 is inserted.

  The sheath 360 includes a cylindrical body 362 and a flange 361 provided at the proximal end of the cylindrical body 362. The lubricant 163 of the first embodiment is applied to the inner periphery of the cylindrical body 362. The lubricant 163 of the first embodiment is applied to the outer periphery of the cylindrical body 362. The cylindrical body 362 is disposed in the insertion hole 311.

  The support part 320 has a hook part 321 on which the flange 361 is hooked. The entire sheath 360 is accommodated inside the main body 310 when the flange 361 is hooked on the hook portion 321.

  As shown in FIG. 12, when the urinary catheter 190 is inserted into the cylindrical body 362 through the insertion hole 311, a frictional force between the sheath 360 and the urinary catheter 190 acts. As a result, the sheath 360 is 190 is pushed in the insertion direction. Since the sheath 360 is made of a flexible material, the flange 361 is deformed so as to get over the hook portion 321 when pushed so by the urinary catheter 190.

  As shown in FIG. 13, when the flange 361 gets over the hook portion 321, the sheath 360 moves together with the urinary catheter 190. When the user moves the urinary catheter 190 and the sheath 360 until the distal end of the sheath 360 slightly protrudes from the opening on the lower side of the insertion hole 311, the state is maintained. At this time, since most of the sheath 360 is accommodated in the main body 310, it is difficult for an unclean object to come into contact with the sheath 360.

  As shown in FIG. 14, the user places the catheter insertion assisting tool 300 and the urinary catheter 190 at the outer urethral opening P1, and further pushes in the urinary catheter 190 from the state described above. The sheath 360 moves until the flange 361 comes into contact with the lower portion 322 of the support portion 320 and protrudes from the insertion hole 311 to the urethra P2. At this time, the distal end of the sheath 360 is located on the back side of the urethra P2 with respect to the near-outer region P3.

  As shown in FIG. 15, when the urine catheter 190 is further pushed after the flange 361 contacts the lower part 322 of the support part 320, the sheath 360 is caught by the support part 320 and stays in the near-outer region P3, and the urinary catheter is retained. Only 190 moves to the back side of the urethra P2.

  When the urinary catheter 190 passes through the near-external region P3, the urinary catheter 190 is covered with the sheath 360, so that bacteria present at a high concentration in the near-external region P3 do not adhere to the urinary catheter 190.

  On the other hand, since the lubricant 163 of the first embodiment is applied to the inside of the sheath 360, when the urinary catheter 190 passes through the near-external region P3 while being covered by the sheath 360, the lubricant 163 is removed from the urinary catheter 190. Adhere to the surface.

  When the opening 191 at the distal end of the urinary catheter 190 reaches the bladder, the user stops inserting the urinary catheter 190. The urine collected in the bladder flows into the urinary catheter 190 through the opening 191 and is discharged from the base end side of the urinary catheter 190 to the outside of the body.

  The main body part 310, the support part 320, and the sheath 360 of the catheter insertion assisting tool 300 of the present embodiment have shapes different from those of the main body part 110, the support part 120, and the sheath 160 of the first embodiment. Has the same function. Therefore, the catheter insertion assisting tool 300 according to the present embodiment can exhibit the same effects as the catheter insertion assisting tool 100 according to the first embodiment.

<Fourth embodiment>
As shown in FIG. 16, the catheter insertion aid 400 according to the fourth embodiment has an adhesive layer 430 that is arranged differently from the adhesive layer 130 according to the first embodiment.

  In the catheter insertion aid 400, the adhesive layer 430 is disposed not on the outer surface 112 but on the outer surface 113 on the opposite side, unlike the adhesive layer 130 of the first embodiment. About another structure, since the catheter insertion auxiliary tool 400 is the same as that of the catheter insertion auxiliary tool 100 of 1st Embodiment, it attaches | subjects the same code | symbol in a figure, and the overlapping description here is abbreviate | omitted.

  The catheter set 480 of the present embodiment includes a urinary catheter 490 having a configuration different from that of the urinary catheter 190 of the first embodiment, and a catheter insertion aid 400.

  The urinary catheter 490 is different from the urinary catheter 190 of the first embodiment in that an opening 493 is formed at the tip. The opening 493 is open in the axial direction of the urinary catheter 490. The opening 493 communicates with the inside of the urinary catheter 490. Regarding the configuration other than the opening 493, the urinary catheter 490 is the same as the urinary catheter 190 of the first embodiment.

  Next, how to use the catheter insertion aid 400 and the urinary catheter 490 will be described.

  As shown in FIG. 17, the user sets the urinary catheter 490 and the catheter insertion aid 400 using the wire W. The user points the outer surface 112 side of the catheter insertion assisting tool 400 toward the distal end of the urinary catheter 490 and aligns the distal end of the urinary catheter 490 with the insertion hole 111. Further, the user aligns the tip of the wire W with the insertion hole 111 on the outer surface 113 side.

  Thereafter, as shown in FIG. 18, the user pushes the wire W toward the sheath 160 and inserts the distal end of the sheath 160 formed by the thin film 162 into the urinary catheter 490 from the opening 493. The thin film 162 inserted into the urinary catheter 490 has a bag shape.

  As shown in FIG. 19, the user inserts the wire W until the thin film 162 is most drawn out from the opening 493 into the urinary catheter 490. At this time, since the sheath 160 is hooked and held by the support portion 120, it cannot be detached from the main body portion 110.

  Thereafter, as shown in FIG. 20, the user pulls out the wire W and pushes the urinary catheter 490 toward the insertion hole 111.

  As shown in FIG. 21, when the urinary catheter 490 is inserted into the insertion hole 111 and the sheath 160 is pushed at the distal end thereof, the thin film 162 inserted into the urinary catheter 490 is pushed back. The thin film 162 covers the urinary catheter 490 while being pulled out from the opening 493 and turned upside down.

  When the user inserts the urinary catheter 490 until the distal end of the urinary catheter 490 and the outer peripheral portion in the vicinity thereof slightly protrude from the opening on the lower side of the insertion hole 111, the user maintains the state. At this time, since most of the sheath 160 is housed inside the main body 110 and the urinary catheter 490, it is difficult for an unclean object to contact the sheath 160.

  As shown in FIG. 22, the user places the catheter insertion aid 400 and the urinary catheter 490 at the external urethral opening P1 in this state. The user adheres the adhesive layer 430 to the tip of the penis P and fixes the main body 110 to the penis P. Thereafter, the user further pushes the urinary catheter 490 and advances the urinary catheter 490 to the back side of the urinary tract P2.

  As shown in FIG. 23, the urinary catheter 490 moves to the back side of the urethra P2 while being covered by the sheath 160. The protrusion 165 of the sheath 160 pushed out with the insertion of the urinary catheter 490 is formed by the thin film 162 pulled out from the opening 493 and turned over. Since the thin film 162 is contained in the main body 110 and the urinary catheter 490, the thin film 162 is pulled out from the opening 493 in a sterilized state.

  As shown in FIG. 24, the sheath 160 protrudes from the insertion hole 111 while covering the urinary catheter 490 until the thin film 162 is completely pulled out from the inside of the urinary catheter 490. At this time, the distal end of the sheath 160 is located on the back side of the urethra P2 with respect to the near-outer region P3.

  When the urinary catheter 490 is further pushed in from this state, the distal end of the sheath 160 is broken by the fragile portion 164, and the urinary catheter 490 penetrates the sheath 160. Since the proximal end side of the sheath 160 is hooked and held by the support portion 120, the sheath 160 does not come off the main body portion 110 and remains in the near-outer region P <b> 3.

  As shown in FIG. 25, the urinary catheter 490 that has penetrated the sheath 160 is further pushed in and moves to the bladder located in the back of the urethra P2.

  When the urinary catheter 490 passes through the near-outer region P3, the urinary catheter 490 is covered with the sheath 160, so that bacteria present at a high concentration in the near-outer region P3 do not adhere to the urinary catheter 490.

  On the other hand, since the lubricant 163 of the first embodiment is applied to the inside of the sheath 160, when the urinary catheter 490 is covered by the sheath 160 while passing through the near-outer region P3, the lubricant 163 is covered with the urinary catheter 490. Adhere to the surface.

  When the opening 493 and the opening 191 at the distal end of the urinary catheter 490 reach the bladder, the user stops inserting the urinary catheter 490. The urine collected in the bladder flows into the urine catheter 490 through the opening 493 and the opening 191 and is discharged out of the body from the proximal end side of the urine catheter 490.

  Next, the function and effect of this embodiment will be described.

  In the catheter insertion assisting tool 400, the protruding end 165 of the sheath 160 is configured such that the thin film 162 that has been pushed in the direction opposite to the protruding direction and has not been in contact with the unclean object is sequentially reversed with the insertion of the urinary catheter 490. The As a result, the protruding tip 165 is always kept in a clean state in which the adhesion of bacteria is suppressed, so that the catheter insertion aid 400 can more effectively prevent bacteria from moving to the back side of the urethra P2. .

  Moreover, since the catheter insertion assisting tool 400 of this embodiment has the same configuration as that of the catheter insertion assisting tool 100 of the first embodiment, the same effects as those of the first embodiment are achieved.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims.

  For example, a support part is not limited to the said embodiment, You may use support part 120A-120E as shown in FIGS.

  The present invention includes a support portion 120A having a hollow substantially trapezoidal cross-sectional shape as shown in FIG.

  Moreover, this invention includes the support parts 120B, 120C, 120D, and 120E which have a hollow substantially C-shaped cross-sectional shape as shown in FIGS.

  In the support portion 120D shown in FIG. 29, the pair of edge portions 122D forming the gap 121D has a curved shape. For this reason, compared with the case where the edge portion 122D is square, the thin film 162 is pulled out smoothly without being caught by the edge portion 122D.

  In the support portion 120E shown in FIG. 30, the pair of edge portions 122E not only have a curved shape, but also spread away from each other on the side where the thin film 162 is drawn with respect to the gap 121E. For this reason, in the edge part 122E, the force F of the direction which closes the clearance gap 121E is added from the main-body part 110, for example, and the core material 166 becomes difficult to remove | deviate from the clearance gap 121E.

  Further, the present invention is not limited to those used in treatment through the urethra as in the above embodiment. The present invention may be used for a procedure of inserting a bladder fistula catheter or a renal pelvis catheter using an opening formed in the abdomen. In this case, the medical long body insertion assisting tool is disposed in an opening formed in the peritoneum, and a bladder fistula catheter and a renal pelvis catheter are inserted as the medical long body. It can also be used for various drainage tubes including ascites.

  Moreover, in the said embodiment, although the medical elongate body insertion aid is used with respect to the male, it is not limited to this, You may be used with respect to the female.

  In the above embodiment, the medical long body insertion aid and the medical long body are inserted into the insertion hole of the medical long body insertion aid, and these are integrated with each other. However, the present invention is not limited to this. For example, the medical long body insertion assisting tool may be first disposed in the external urethral opening, and then the medical long body may be inserted into the insertion hole of the medical long body insertion assisting tool.

100, 200, 300, 400 Catheter insertion aid (medical long body insertion aid),
110, 310 body part,
111, 311 insertion hole,
112, 113 outer surface on which insertion holes are formed,
120, 120A, 120B, 120C, 120D, 120E, 320 support part,
121, 121D, 121E gaps in the support,
122D, 122E Edges forming gaps,
130, 430 adhesive layer,
140, 150 protective film,
160, 360 sheath,
161 roll part,
162 thin film,
163 lubricant,
164 vulnerable part,
165 sheath tip,
166 Core material (hook part),
180, 280, 380, 480 catheter set (medical long body set),
190, 290, 490 Urine catheter (medical long body),
191 opening,
270 fasteners,
273, 274 nails,
275 wearing part,
291 groove,
493 opening,
L1 width of the gap formed in the support part,
L2 Width of hook part,
P penis,
P1 External urethral orifice,
P2 urethra,
P3 Near and outside area,
W wire.

Claims (9)

A main body formed with an insertion hole through which a medical elongated body can be inserted; and
A sheath that is at least partially housed in the main body, and that protrudes from the insertion hole while covering the medical elongated body as the medical elongated body is inserted into the insertion hole;
Provided in the main body portion, have a, a support portion for supporting so as not to escape the sheath protruding from the insertion hole,
A gap communicating with the insertion hole is formed in the support portion, and the sheath includes a thin film drawn into the insertion hole through the gap, and a hook portion provided at an end of the thin film. ,
The said hook part has a width | variety larger than the width | variety of the said clearance gap, and is a medical elongate body insertion assistance tool hooked in the said clearance gap .   The medical long body insertion aid according to claim 1, wherein a lubricant is applied to at least one of the inside and the outside of the sheath covering the medical long body.   The medical long body insertion aid according to claim 1 or 2, further comprising a fastener for fastening the medical long body. The medical long body insertion assisting tool according to any one of claims 1 to 3, wherein a pair of edges that face each other and form the gap have a curved shape . The medical long body insertion assisting device according to claim 4, wherein the pair of edge portions spreads away from each other on the side where the thin film is drawn out with respect to the gap . The medical long body insertion aid according to any one of claims 1 to 5, wherein the main body is formed of an elastic body . The medical elongated body insertion assisting tool according to any one of claims 1 to 6 , wherein an adhesive layer is provided on an outer surface of the main body portion where the insertion hole is formed . A medical elongated body insertion aid according to any one of claims 1 to 7,
A medical long body set comprising the medical long body . The distal end of the sheath is pushed into the medical elongated body in a direction opposite to the projecting direction in which the sheath projects from the insertion hole, and the sheath is in the medical elongated body in the projecting direction. The medical elongate body set according to claim 8, which covers the medical elongate body while being turned upside down by being inserted from the pushed-in state .