JP2012065980A - Liquid agent applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid agent applicator capable of further surely closing a gap generated at an insertion part between a long-length insertion body and living tissue.SOLUTION: The liquid agent applicator includes: a syringe 12 having a liquid storage part 22b filled with a liquid agent for covering the insertion part of an insertion tube 16 such as a catheter into the living tissue; and a nozzle 14 connected to an outflow port 22a at the tip of the syringe 12. The nozzle 14 is provided with an arm part 32 capable of surrounding at least a part of the outer peripheral surface of the insertion tube 16, and the arm part 32 is provided with discharge holes 36 for discharging the liquid agent L, with which the liquid storage part 22b is filled, toward the outer peripheral surface of the insertion tube 16.

Description

  The present invention relates to a liquid agent applicator for applying a liquid agent that covers an insertion portion between a long inserted body such as a catheter and a living tissue.

  Long medical inserts, for example, various catheters such as vascular catheters, urinary catheters and epidural catheters, indwelling drains, peritoneal dialysis tubes, or insertion parts of Huber needles, or living bodies When an implantable medical device cable or a tracheostomy cannula or the like (hereinafter referred to as an insertion tube) is inserted and placed in the body, there is a gap in the insertion portion of the insertion tube into a living tissue (for example, the body surface). In this gap, bacteria (for example, bacteria resident in the skin) and dirt may invade, and infection or inflammation may occur.

  Therefore, in general, in order to prevent the above infections and inflammation, a treatment for covering the periphery of the insertion portion with a dressing agent, a treatment for applying a patch impregnated with an antibacterial agent around the insertion portion, and the like are performed. (For example, see Patent Documents 1 and 2).

JP-A-9-94299 Japanese Patent No. 3046623

  A certain effect can be obtained for the prevention of infectious diseases and inflammation by performing a treatment for attaching the dressing agent and patch to the insertion portion and the periphery thereof. However, since the method of applying such a dressing or patch is a treatment only covering the periphery of the insertion portion between the insertion tube and the living tissue from above, it is difficult to completely close the gap generated in the insertion portion.

  The present invention has been made in consideration of such a conventional problem, and is a liquid agent applicator that can more reliably close a gap generated in an insertion portion between a long insertion body and a living tissue. The purpose is to provide.

  The liquid agent applicator according to the present invention has an arm portion that can surround at least a part of an outer peripheral surface of a long insertion body to be inserted into a living tissue, and the arm portion has the arm portion that extends to the living tissue of the insertion body. A discharge hole for discharging the liquid agent for covering the insertion portion toward the outer peripheral surface of the insert is provided.

  According to such a configuration, by discharging the liquid agent from the discharge hole provided in the arm portion toward the outer peripheral surface of the insert surrounded by the arm portion, the liquid agent is applied to the insertion portion and the periphery thereof, A gap generated in the insertion portion can be reliably covered and closed.

  The liquid storage unit filled with the liquid agent and the arm unit, the arm unit having a nozzle capable of circulating the liquid agent from the liquid storage unit, the liquid agent filled in the liquid storage unit It is good also as a structure discharged from the discharge hole of a nozzle.

  In this case, when a plurality of the discharge holes are provided, the liquid agent can be discharged more evenly and rapidly to the outer peripheral surface of the insert.

  When the arm portion has a ring shape having an inner diameter larger than the outer diameter of the insert body, the liquid agent can be applied in a state where the insert body is positioned and held inside the ring shape, and the operation of the liquid agent applicator is performed. The property is further improved.

  The arm portion may have an opening through which an outer diameter of the insert can pass in a part of a direction surrounding the insert. If it does so, an insertion body can be easily arrange | positioned inside an arm part via this opening part.

  The opening may be an inclined surface whose width increases from the inner surface side to the outer surface side of the arm portion. This makes it possible to more easily insert the insert from the opening into the region surrounded by the arm, and from the opening of the insert once disposed in the region surrounded by the arm. Can also be provided.

  Further, when a lock mechanism capable of opening and closing the opening is provided, it is possible to surely prevent the insertion member arranged in the region surrounded by the arm from coming out of the opening, and more reliably and stably the liquid agent. Application can be performed.

  The discharge hole may be provided on the inner surface of the arm portion facing the outer peripheral surface of the insert or on the lower surface of the arm portion that faces the insertion portion. When the discharge hole is provided on the inner surface of the arm portion, the liquid agent can be discharged more smoothly and reliably to the outer peripheral surface of the insert body positioned and held in the region surrounded by the arm portion. On the other hand, when a discharge hole is provided on the lower surface of the arm portion, the liquid agent discharge direction may be a direction perpendicular to the arm portion (for example, see FIG. 10B), or a direction (for example, a direction toward the insertion portion of the insert into the living tissue) FIG. 12). If it is angled so as to have a focal point in the vicinity of the insertion portion, the liquid agent can be more easily applied to the insertion portion and its periphery.

  When the arm portion is provided with a leg portion that lands on the surface of the living tissue and defines a height position from the insertion portion of the arm portion, a more simple operational feeling can be obtained, In addition, it is possible to clearly indicate the appropriate use position of the liquid applicator to the user.

  According to the present invention, the liquid agent for covering the insertion portion of the insert body into the living tissue is discharged from the discharge hole provided in the arm portion toward the outer peripheral surface of the insert body surrounded by the arm portion, The liquid agent can be smoothly applied to the insertion portion of the insertion body into the living tissue and the periphery thereof, and the gap generated in the insertion portion can be reliably covered and closed.

It is a partial exploded perspective view of the liquid medicine applicator concerning one embodiment of the present invention. It is the fragmentary sectional view which expanded the front end side of the liquid agent applicator shown in FIG. FIG. 3A is an explanatory view showing a state in which the liquid agent is applied to the insertion portion of the insertion tube into the living tissue with the applicator shown in FIG. 1, and FIG. 3B is a plan view of the applicator shown in FIG. 3A. FIG. 3C is an explanatory view showing a state in which the liquid agent is applied from the state shown in FIG. 3A and the periphery of the insertion portion is covered with the liquid agent. 4A is a side cross-sectional view of a configuration example in which a lock mechanism is provided at a connection portion between a syringe and a nozzle, and FIG. 4B is a side cross-sectional view in which the lock mechanism shown in FIG. 4A is in a locked state. FIG. 5A is a partially omitted plan view of the nozzle according to the first modified example, and FIG. 5B is a partially omitted plan view of the nozzle according to the second modified example. FIG. 6A is a partially omitted plan view of the nozzle according to the third modification, and FIG. 6B is a partially omitted plan view of the nozzle according to the fourth modification. It is a partially omitted plan view of a nozzle according to a fifth modification. It is a partially-omission partial cross section of the nozzle which concerns on a 6th modification. It is a partial omission partial section of the nozzle concerning the 7th modification. FIG. 10A is a partially omitted plan view of a nozzle according to an eighth modification, and FIG. 10B is an explanatory view showing a state in which a liquid agent is applied using the nozzle shown in FIG. 10A. FIG. 11A is an explanatory view showing a state in which a nozzle provided with a leg portion at the tip is positioned with respect to the insertion portion, and FIG. 11B shows a nozzle provided with a leg portion of another configuration at the tip with respect to the insertion portion. It is explanatory drawing which shows a mode that it positioned. 12A is a partially omitted bottom view of a nozzle according to a ninth modification, and FIG. 12B is a partially omitted sectional view taken along the line XIIB-XIIB in FIG. 12A. 13A is a partially omitted plan view of the nozzle according to the tenth modification, FIG. 13B is a partially omitted plan view of the nozzle according to the eleventh modification, and FIG. 13C relates to the twelfth modification. It is a partially omitted plan view of the nozzle. 14A is a partially omitted plan view of a nozzle having a lock mechanism in a locked state, and FIG. 14B is a partially omitted plan view of the nozzle shown in FIG. 14A in an unlocked state. 15A is a partially omitted plan view of the nozzle according to the first modification of the nozzle having the locking mechanism in a partially omitted plan view, and FIG. 15B is a partially omitted plan view of the nozzle shown in FIG. 15A in an unlocked state. It is. 16A is a partially omitted plan view of the nozzle according to the second modification of the nozzle having the locking mechanism in a partially omitted plan view, and FIG. 16B is a partially omitted plan view of the nozzle shown in FIG. 16A in an unlocked state. It is. It is a partially abbreviated top view of the nozzle which concerns on the 3rd modification of the nozzle which has a locking mechanism. FIG. 18A is a partially omitted plan view of a nozzle having a locking mechanism according to a fourth variation in a partially omitted state when the nozzle is locked, and FIG. 18B is a partially omitted plan view of the nozzle shown in FIG. 18A in an unlocked state. It is. FIG. 19A is a partially omitted plan view of a nozzle having a lock mechanism according to a fifth modified example in a locked state of the nozzle, and FIG. 19B is a partially omitted plan view of the nozzle shown in FIG. 19A in an unlocked state. It is. 20A is a partially omitted plan view of the nozzle according to the sixth modified example of the nozzle having the locking mechanism in the unlocked state, and FIG. 20B is a partially omitted plan view of the nozzle shown in FIG. 20A in the locked state. It is. FIG. 21A is a partially omitted plan view of a nozzle having a locking mechanism according to a seventh modified example in a locked state of the nozzle, and FIG. 21B is a partially omitted plan view of the nozzle shown in FIG. 21A in an unlocked state. FIG. 21C is a partially omitted perspective view in the locked state shown in FIG. 21A. It is a perspective view of the liquid agent applicator which concerns on another structural example of the liquid agent applicator shown in FIG. 23A is a plan view of a liquid agent applicator according to still another configuration example of the liquid agent applicator shown in FIG. 1, and FIG. 23B is a side view of the liquid agent applicator shown in FIG. 23A.

  Hereinafter, preferred embodiments of the liquid applicator according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a partially exploded perspective view of a liquid agent applicator 10 according to an embodiment of the present invention, and FIG. 2 is an enlarged partial cross-sectional view of the distal end side of the liquid agent applicator 10 shown in FIG.

  A liquid agent applicator 10 according to the present embodiment (hereinafter also simply referred to as “applicator 10”) includes a syringe 12 filled with the liquid agent L and a nozzle 14 connected to the tip of the syringe 12. Is a device for applying (administering, discharging, and injecting) from a nozzle 14 to a target site. The liquid L is a drug or the like for covering the insertion portion 20 of the insertion tube 16 that is a long insertion body made of a catheter, drain, cable, or the like into the living tissue 18 (for example, the body surface) (FIG. 3A). That is, the applicator 10 is a medical instrument for applying the liquid L from the nozzle 14 at the tip to the insertion portion 20 and its periphery. The insertion portion 20 of the insertion tube 16 into the living tissue 18 may be other than the body surface, for example, inside the body.

  As the liquid L, for example, a liquid containing a sealant (sealing material, adhesive) containing cyanoacrylate or an antibacterial agent such as chlorhexidine and having sufficient viscosity may be used. The liquid is preferably hardened after ejection, and preferably has a suitable adhesiveness with living tissue. Specific examples of the material include a gel mainly composed of polyethylene glycol and a polysaccharide gel, and a method of curing by mixing two liquids may be used.

  In the following description, the left side (syringe 12 side) in FIGS. 1 and 2 is called the “base end (rear end)” side, and the right side (nozzle 14 side) is called the “front end” side.

  As shown in FIGS. 1 and 2, the syringe 12 is fluid-tightly slid within the outer cylinder 22 and an outer cylinder (cylinder) 22 provided with an outlet 22 a protruding in a tapered shape at the tip, A gasket 24 that defines a liquid storage portion 22b filled with the liquid L is attached to the tip, and includes a pusher (plunger rod) 26 that can move in the front-rear direction (axial direction).

  The nozzle 14 has a substantially cylindrical base portion 30 having an inlet 28 that is tapered to the outlet 22a of the syringe 12 at the base end surface, and the insertion tube 16 in plan view (see FIG. 2) from the distal end of the base portion 30. And an arm portion (ring portion) 32 formed in, for example, a C-ring shape, a V-shape, or a U-shape (FIG. 2 illustrates a C-ring configuration). Have. A nozzle channel 34 that extends from the injection port 28 and extends in the axial direction is formed inside the base portion 30, and the nozzle channel 34 also extends inside the arm portion 32 (FIG. 2). reference). Further, a plurality (9 in this embodiment) of discharge holes 36 branched from the nozzle flow path 34 are formed in the inner surface (inner peripheral surface) 32a of the arm portion 32 formed in a substantially circular shape. .

  As shown in FIG. 2, all the discharge holes 36 in the nozzle 14 are formed in the discharge direction directed to the center of the circle constituting the arm portion 32, and are provided at equal intervals along the circumferential direction of the arm portion 32. However, it is needless to say that the discharge direction and the arrangement interval of the discharge holes 36 can be changed as appropriate.

  As shown in FIGS. 1 and 2, the arm portion 32 is provided with an opening (notch portion, slit) 38 through which the outer diameter of the insertion tube 16 can pass on the distal end side in the axial direction of the base portion 30. . In this arm part 32, the opening part 38 is comprised by the inclined shape which a width | variety (distance between inner surfaces) expands toward the front-end | tip direction.

  The material of the nozzle 14 is not particularly limited. For example, a resin such as polypropylene, polyethylene, polyvinyl chloride, cyclic polyolefin, polystyrene, polycarbonate, acrylic resin, polyamide, or the like may be used. The outer cylinder 22 and the pusher 26 of the syringe 12 may be used. The same applies to. For the gasket 24, various elastomers such as styrene-butadiene rubber, butyl rubber, isoprene rubber, silicone rubber, and polyester elastomer may be used. The nozzle 14 has, for example, a length from the base end of the base portion 30 to the tip of the arm portion 32 of about 10 mm to 50 mm, preferably about 20 mm to 30 mm, and the inner diameter of the inner surface 32a of the arm portion 32, that is, The outer diameter of the region surrounded by the arm portion 32 depends on the outer diameter of the insertion tube 16, but is, for example, about 5 mm to 30 mm, preferably about 10 mm to 20 mm. The width (interval) of the opening 38 is The diameter is about 3 mm to 30 mm, preferably about 3 mm to 20 mm, and the discharge hole 36 has a diameter of about 0.5 mm to 3 mm, preferably about 1 mm to 2 mm. Of course, each of these dimensions and materials can be set optimally as appropriate depending on the application and specifications of the applicator 10, the type of the liquid L, and the like.

  Next, an example of a liquid agent application method using the applicator 10 configured as described above will be described with reference to FIGS. 3A to 3C. FIG. 3A is an explanatory view showing a state in which the liquid L is applied to the insertion portion 20 of the insertion tube 16 into the living tissue 18 by the applicator 10 shown in FIG. 1, and FIG. 3B is an application shown in FIG. 3A. 3C is a plan view of the tool 10, and FIG. 3C is an explanatory view showing a state where the liquid agent L is applied from the state shown in FIG.

  As the insertion tube 16 which is a long insertion body, for example, various catheters such as blood vessel catheters, urinary catheters and epidural catheters, indwelling drains, peritoneal dialysis tubes, or insertion parts of Huber needles Or, a cable of an implantable medical device, an incision cannula, or the like can be given. In a state where such an insertion tube 16 is inserted into the biological tissue 18 (for example, the body surface), as shown in FIG. 3A, the insertion tube 16 is interposed between the insertion tube 16 and the biological tissue 18 in the insertion portion 20. A gap G is formed along the outer peripheral surface. In FIGS. 3A to 3C, the gap G is slightly exaggerated for ease of understanding, but the actual gap G is narrower than that illustrated in FIGS. 3A to 3C. It is a minute interval.

  In this way, the gap G generated in the insertion portion 20 may be invaded by bacteria and dirt that are permanently present on the surface of the living tissue 18 (skin surface, etc.). In order to prevent infection and inflammation, It is preferable to block the gap G more reliably. However, since the conventional dressing described above has a configuration in which a film is only attached to the periphery of the insertion portion, it is difficult to completely close the gap G generated in the insertion portion. In addition, wrinkles or the like may occur in the attached film, and in this case, bacteria may move through the gaps (spaces) generated by the wrinkles and the like, and may enter the gap G.

  Therefore, in the present embodiment, the liquid gap L contains a sealant containing cyanoacrylate or an antibacterial agent such as chlorhexidine in order to reliably close the gap G and prevent the occurrence of the gap due to wrinkles or the like. In addition, a liquid agent having a sufficient viscosity is used, and a solution L alone or a mixture thereof is preliminarily filled in the liquid storage part 22b of the syringe 12, or is filled immediately before the procedure. deep.

  Next, after removing the cap 39 (see FIG. 1) of the outlet 22a of the syringe 12 and opening the outlet 22a, the nozzle 14 is attached (see FIG. 2), and after priming, FIG. 3A and FIG. 3B, the insertion tube 16 is inserted into the arm portion 32 through the opening 38, and the insertion tube 16 is disposed so as to surround the inner surface 32a of the arm portion 32. That is, the insertion tube 16 is inserted inside the ring of the arm portion 32.

  Instead of the cap 39, for example, a resin film (not shown) is provided at the outlet of the outlet 22a, and the film is opened with a puncture needle (not shown) at the start of use, or the nozzle 14 You may comprise so that it may open by the puncture needle in which the flow path provided in the path | route 34 was formed.

  The installation position of the nozzle 14 on the insertion tube 16 depends on the type and size of the insertion tube 16 and the applicator 10, the size of the gap G in the insertion portion 20, and the like. The height position may be set to 20 mm, preferably about 10 mm (h = 10 mm in FIG. 3A). The width (minimum width) of the opening 38 is preferably set to be slightly larger than the outer diameter of the target insertion tube 16, for example, about several percent to several tens of percent. The inner diameter of the inner surface 32a of 32 is slightly larger than the outer diameter of the target insertion tube 16, and is preferably set to about 1.3 to 2 times, for example. This is not the case when the opening 38 is made of an elastic member and can be expanded.

  Subsequently, by pushing the pusher 26 of the syringe 12, as shown in FIG. 3B and FIG. 3C, the liquid agent L is discharged from the discharge holes 36 of the nozzle 14 toward the insertion tube 16 all at once. The liquid agent L descends along the outer peripheral surface of the insertion tube 16 and reaches the insertion portion 20. Thereby, the liquid L is appropriately applied to the insertion portion 20 and the periphery thereof, and the gap G is reliably covered and closed. In addition, the liquid L of the applicator 10 can be used in combination with, for example, the above-mentioned dressing, so that even if wrinkles are generated in the dressing, it is reliably prevented that bacteria enter the body from the gap G. The

  For example, when a sealant containing cyanoacrylate is used as the liquid agent L, the sealant is solidified at the insertion portion 20 and its peripheral portion, so that the gap G can be reliably closed, and the insertion tube 16 is inserted into the insertion portion 20. It can also be fixed. On the other hand, for example, when a liquid agent containing an antibacterial agent such as chlorhexidine and having a sufficient viscosity is used as the liquid agent L, the liquid agent L is held at the insertion portion 20 and its peripheral portion, and the gap G is reliably blocked. be able to. When the liquid agent is used, it does not solidify around the insertion portion 20 unlike the sealant described above, but in general, the width of the gap G generated between the insertion tube 16 and the living tissue 18 is extremely narrow. Therefore, if the liquid agent L has a predetermined viscosity, the gap G can be reliably closed by the surface tension without solidifying.

  As described above, in the applicator 10 according to the present embodiment, the liquid L filled in the liquid storage part 22b of the syringe 12 is discharged from the discharge hole 36 opened in the inner surface 32a of the arm part 32 to the outer peripheral surface of the insertion tube 16. The gap G can be reliably covered and closed by discharging the liquid and applying the liquid L to the insertion portion 20 and its periphery. Accordingly, it is possible to reliably prevent bacteria and dirt from entering the gap G formed in the insertion portion 20 between the insertion tube 16 such as a catheter and the living tissue 18, and infectious diseases in the insertion portion 20 Inflammation can be prevented.

  The nozzle 14 has an arm portion 32 that can surround the insertion tube 16, and a discharge hole 36 for the liquid agent L is formed in the inner surface 32 a of the arm portion 32. Therefore, at the time of application of the liquid L, the liquid L can be reliably discharged from the discharge hole 36 to the outer peripheral surface of the insertion pipe 16 at a stroke while holding the insertion pipe 16 inside the arm portion 32, and high operability. Reliable application is possible.

  Since each discharge hole 36 is formed in the inner surface 32 a of the arm portion 32, the liquid agent L can be supplied to the insertion tube 16 only by holding (arranging) the insertion tube 16 inside (inside) the arm portion 32. It is possible to reliably and evenly discharge to the outer peripheral surface.

  A plurality of discharge holes 36 are not provided as described above, and may be, for example, only one discharge hole 36 having a certain size. However, the liquid agent L is more evenly distributed with respect to the outer peripheral surface of the insertion tube 16. In order to apply, it is preferable to provide three or more discharge holes 36 that are evenly arranged at substantially equal intervals in the circumferential direction of the arm portion 32.

  As shown in FIG. 2, the nozzle 14 has an opening 38 for inserting the insertion tube 16 into a region surrounded by the arm portion 32, and this opening 38 is formed in the distal direction of the applicator 10, That is, an opening is formed on the axis. Thereby, when the user sets the applicator 10 to the insertion tube 16, for example, the user can easily pass the insertion tube 16 through the opening 38 while holding the syringe 12 portion with one hand. Operability can be obtained.

  Moreover, in the nozzle 14, the opening 38 is formed as an inclined surface whose width increases from the inner surface 32 a side of the arm portion 32 toward the outer surface side. Accordingly, the insertion tube 16 can be more easily inserted from the opening 38 into the region surrounded by the arm portion 32, and the opening of the insertion tube 16 once disposed inside the arm portion 32. A function of preventing the slippage from 38 can be provided.

  By the way, in the said applicator 10, since the liquid agent L with sufficient viscosity is apply | coated, for example, the liquid agent L discharged from the syringe 12 generate | occur | produces predetermined high pressure (resistance). Therefore, the connection portion between the nozzle 14 and the syringe 12 includes, for example, a luer lock 21 shown in FIGS. 4A and 4B in addition to the normal taper fitting structure (luer taper fitting structure) shown in FIG. A luer lock structure is also effective.

  As shown in FIGS. 4A and 4B, the luer lock 21 includes a female screw 27 formed on the inner peripheral surface of a cylindrical portion 25 disposed with a gap 23 on the outer peripheral side of the outlet 22a of the syringe 12, and a base. It is comprised from the external thread 29 formed in the base end side outer peripheral surface of the part 30. FIG. The male screw 29 on the nozzle 14 side is screwed onto the female screw 27 on the syringe 12 side, whereby the syringe 12 and the nozzle 14 can be more reliably fitted and fastened.

  Next, modified examples of the nozzle 14 in the applicator 10 configured as described above will be described in order. In each of the following modifications, the same reference numerals as those shown in FIGS. 1 to 4 indicate the same or similar configurations, and thus the detailed description is omitted because they exhibit the same or similar functions and effects. To do.

  As shown in FIG. 5A, instead of the nozzle 14, the nozzle 14a is formed of an arm portion 40 provided with a discharge hole 36 in a V-shaped inner surface 40a, or the substantially diamond-shaped inner surface 42a is discharged as shown in FIG. 5B. It can also be configured as a nozzle 14b comprising an arm portion 42 provided with a hole 36. That is, in the applicator 10, the shape of the arm portion may be other than the ring shape (C ring shape) of the arm portion 32 and the V shape or rhombus shape of the arm portions 40, 42. Any configuration may be used as long as the tube 16 is appropriately positioned and held and the liquid L can be appropriately applied to the insertion portion 20. In other words, the arm portion may have any configuration as long as it can surround at least a part of the insertion tube 16 and can smoothly discharge the liquid agent L to the insertion tube 16.

  As shown in FIG. 6A, instead of the nozzle 14, a nozzle 14c having an opening 44 formed in a substantially parallel width, or as shown in FIG. 6B, from the inner surface 32a side to the outer surface side of the arm portion 32. It is also possible to configure the nozzle 14d having an opening 46 formed of an inclined surface with a narrow width. In the opening 44 shown in FIG. 6A, the insertion / removal into the region surrounded by the arm portion 32 of the insertion tube 16 through the opening 44 is equally easy. 6B, insertion into the region surrounded by the arm portion 32 of the insertion tube 16 is somewhat difficult, but removal from the inside of the arm portion 32 of the insertion tube 16 is facilitated. Of course, these openings 44 and 46 may be applied to the nozzles 14a and 14b shown in FIGS. 5A and 5B.

  As shown in FIG. 7, instead of the nozzle 14, a nozzle provided with an opening 38 at a position that opens in a direction intersecting with the axial direction of the applicator 10 (in FIG. 7, a direction substantially orthogonal to the axial direction). 14e may be configured. According to this nozzle 14e, since the pushing direction of the pusher 26 in the syringe 12 (that is, the axial direction of the syringe 12) intersects with the opening direction of the opening portion 38, the region once surrounded by the arm portion 32 It is possible to reliably prevent the insertion tube 16 inserted and disposed inside from being accidentally pulled out of the opening 38 when the pusher 26 is pushed in.

  In the nozzle 14 shown in FIG. 2, the discharge direction in each discharge hole 36 has been described as being directed to the center of the circle constituting the arm portion 32, but of course other than this may be used. For example, as shown in FIG. 8, a pair of discharge holes 36 a and 36 a set in a discharge direction slightly closer to the opening 38 rather than the center of the circle constituting the arm 32 is provided in the vicinity of the opening 38. It can also be configured as a nozzle 14f.

  Then, the liquid agent L discharged from each discharge hole 36a is appropriately applied also to the outer peripheral surface of the insertion tube 16 located at the portion facing the opening 38 as shown by the arrow A in FIG. become. For this reason, the liquid agent L can be reliably applied to the portion where the discharge hole 36 cannot be installed by the opening 38 by the discharge hole 36a, and the liquid agent L is more evenly applied to the outer peripheral surface of the insertion tube 16. It becomes possible to apply. Of course, the number of discharge holes 36a may be one or three or more, and the arrangement thereof can be changed as appropriate.

  As shown in FIG. 9, instead of the discharge hole 36, a nozzle 14 g provided with a tapered discharge hole 48 whose diameter increases in the discharge direction can also be configured. By providing such a discharge hole 48, the nozzle 14g can more reliably and uniformly apply the liquid agent L to the outer peripheral surface of the insertion tube 16.

  In the nozzle 14 illustrated in FIG. 2, the configuration in which the discharge hole 36 is provided in the inner surface 32a of the arm portion 32 is illustrated. However, as illustrated in FIG. 10A, for example, the discharge hole 36 is formed on the lower surface 32b of the arm portion 32 ( You may comprise as the nozzle 14h provided in the surface which directs a direction).

  As shown in FIG. 10B, according to the nozzle 14h, the discharge hole 36 is provided in the lower surface 32b facing the insertion portion 20 side, so that the insertion tube 16 is held in the region surrounded by the arm portion 32. Then, the liquid L can be reliably applied to the insertion tube 16, the insertion portion 20, and the periphery thereof.

  As shown in FIG. 11A, for example, the nozzle 14h is landed on the surface of the biological tissue 18 on the distal end side (near the opening 38) of the arm portion 32, and the insertion portion 20 (biological tissue 18) of the arm portion 32 is placed. A leg portion 47 that defines a height h from the surface) may be provided. By providing the leg portion 47, it is possible to clearly define the optimum height position for installation of the nozzle 14h on the insertion tube 16, that is, the height h from the surface of the biological tissue 18, and a more simple operation feeling. Obtainable. In addition, it is possible to clearly indicate the proper use position of the applicator 10 to the user. In addition, the shape of the leg part 47 can take various shapes, such as a general tripod (two legs) structure used with a camera etc., and the structure which installed the flat plate, for example, the syringe 12 is the point. Any nozzle may be used as long as it is interposed between the nozzle 14h connected to the tip of the body and the surface of the biological tissue 18 and can define the installation height h of the nozzle 14h from the biological tissue 18.

  Similarly, as shown in FIG. 11B, a substantially triangular leg 49 may be provided on the distal end side (near the opening 38) of the arm portion 32 in a side view inclined from the extending direction of the arm portion 32. . By providing the leg portion 49, the nozzle 14 h can be easily positioned with respect to the insertion portion 20 simply by bringing the leg portion 49 into contact with the surface of the living tissue 18. Of course, these leg portions 47 and 49 may be installed in the nozzles 14a to 14g and the nozzles 14i and 14j described later.

  As shown in FIGS. 12A and 12B, instead of the nozzle 14 h, a discharge hole 50 in which the discharge direction of the liquid agent L from the discharge hole 36 is set obliquely downward toward the inside of the arm portion 32 is provided on the lower surface 32 b. It can also be configured as a nozzle 14i. According to the nozzle 14 i, the liquid agent L is discharged obliquely downward and inward from the discharge hole 50, so that the liquid agent L can be more reliably applied to the insertion tube 16 and the insertion portion 20. In addition to providing the discharge hole 50 in the lower surface 32b of the arm portion 32, for example, the discharge hole 50 may be provided in a corner portion of the lower surface 32b and the inner surface 32a.

  As described above, in the nozzle 14, the insertion tube 16 is inserted and arranged in a region surrounded by the C-ring-shaped arm portion 32, and the insertion tube 16 is inserted from the discharge hole 36 opened to the inner surface 32 a of the arm portion 32. The liquid agent L is applied to the insertion portion 20 and its periphery by discharging the liquid agent L toward the outer peripheral surface of the insertion portion 20. Therefore, in order to enable more uniform and reliable application of the liquid agent L, it is desirable to keep the installation position of the insertion tube 16 in the region surrounded by the arm part 32 substantially constant during the application. The same applies to the other nozzles 14a to 14i.

  Therefore, as shown in FIG. 13A, instead of the nozzles 14 (14 a to 14 i), a mark (mark) 52 is provided on the upper surface (and the lower surface) of the arm portion 32 to indicate the center of the inner circle of the arm portion 32. It can also be configured as a nozzle 14j. The marks 52 are preferably placed at a plurality of positions (three points in FIG. 13) such that the intersection of virtual lines extending in the indicated direction is located at the center of the inner circle of the arm portion 32, for example. According to this nozzle 14j, the insertion tube 16 can be arranged and held with reference to the three marks 52, and when the liquid agent L is applied, the installation position of the insertion tube 16 in the area surrounded by the arm portion 32 can be determined. For example, it can be easily held at the center position. The marks 52 may be formed by, for example, unevenness by printing or molding, and of course, the number and shape of the marks 52 can be changed as appropriate. In FIG. 13A, for ease of understanding, the cross section hatching of the insertion tube 16 shown in a cross section orthogonal to the axial direction is omitted, and the same applies to FIGS. 13B and 13C.

  As shown in FIG. 13B, instead of the nozzles 14 (14 a to 14 j), a nozzle 54 in which a thin thread 54 is provided between the opposing surfaces of the inner surface 32 a of the arm portion 32, and a mark 56 is installed at the approximate center of the thread 54. It can also be configured as 14k (see also the two-dot chain line in FIG. 1). As the thread 54, for example, a wire such as a synthetic fiber made of a resin similar to the nozzle 14 may be used. Also, as the mark 56, a part of the thread 54 is colored or a slightly larger diameter than the thread 54. It is preferable that the member is fixed. According to this nozzle 14k, by placing and holding the insertion tube 16 in contact with the thread 54 with the mark 56 as a guideline, the insertion in the region surrounded by the arm portion 32 when the liquid agent L is applied. The installation position of the pipe | tube 16 can be hold | maintained more reliably and easily.

  As shown in FIG. 13B, when the yarn 54 is installed in a direction orthogonal to the opening direction on the opening 38 side, the insertion tube 16 inserted inside the arm portion 32 via the opening 38 is easily positioned and held. This is preferable. Further, as shown in FIG. 13B, the thread 54 may be installed so that the mark 56 is arranged at substantially the center of the inner circle of the arm portion 32. For example, as shown by a two-dot chain line in FIG. 13B. When the mark 56 is installed at a position slightly offset backward from the center of the inner circle of the arm portion 32, the insertion tube 16 is moved to the arm while the outer surface of the insertion tube 16 is in contact with the thread 54. It becomes possible to arrange at the center of the inner circle of the portion 32. Of course, even if the mark 56 is omitted and the thread 54 is cross-linked, the positioning and holding function of the insertion tube 16 can be sufficiently secured.

  As shown in FIG. 13C, instead of the nozzle 14k, a plurality of yarns 54 (two in FIG. 13C) may be provided instead of one. In this nozzle 14l, two yarns 54 are installed so as to cross each other, a mark 56 is installed at the intersection, and the mark 56 is installed so as to be approximately the center of the inner circle of the arm portion 32. . As a result, a concave portion (valley) directed to the opening 38 side with a predetermined angle θ is formed inside the arm portion 32 of the nozzle 14l by crossing the two threads 54. Thus, the insertion tube 16 can be positioned and held more stably at the concave portion. The nozzle 14l is also arranged in the center of the inner circle of the arm portion 32 with the outer surface of the insertion tube 16 in contact with the thread 54 (the concave portion). Of course, the thread 54 and the mark 56 may be installed at an offset position as indicated by a two-dot chain line, and the mark 56 may be omitted.

  Next, as a modification of the nozzles 14, 14 a to 14 l, a description will be given of the nozzle 15 provided with a mechanism for preventing the insertion tube 16 from coming off from the arm portion by providing a lock mechanism at the opening of the insertion tube 16 and the modification. To do.

  As described above, since the nozzle 14 and the like are configured to discharge the liquid agent L in a state where the insertion tube 16 is installed inside the arm portion 32, the insertion tube 16 is installed in a region surrounded by the arm portion 32. After that, it is desirable that the insertion tube 16 does not accidentally escape from the opening 38 until the application of the liquid L is completed. Hereinafter, a configuration example of a nozzle including a lock mechanism that performs a function of preventing the insertion tube 16 from coming off will be sequentially described.

  14A is a plan view of the nozzle 15 having a locking mechanism in a locked state, and FIG. 14B is a plan view of the nozzle 15 shown in FIG. 14A in an unlocked state.

  As shown in FIGS. 14A and 14B, the nozzle 15 includes an arm portion 74 having a lock mechanism 70 that can open and close the opening 38 instead of the arm portion 32 of the nozzle 14 shown in FIG. The locking mechanism 70 has a curved bar-like slide bar 72 that can be advanced and retracted from one end face constituting the opening 38, and the slide bar 72 is an inner part formed along the circumferential direction on one end side of the arm part 74. It is inserted and placed in the cavity. A gripping protrusion 75 protrudes from the base end of the slide bar 72, and the gripping protrusion 75 protrudes from a slide hole 76 formed in the upper surface of the arm portion 74. A spring 78 that urges the slide bar 72 in the forward direction, that is, the direction of closing the opening 38 (see FIG. 15A) is disposed at the proximal end of the slide bar 72 within the lumen of the arm portion 74.

  Therefore, in the nozzle 15, the slide bar 72 is normally moved forward by the biasing force of the spring 78 and is in contact with or close to the end surface constituting the other opening 38 to close the opening 38. That is, the lock mechanism 70 is in a locked state (see FIG. 15A). On the other hand, when inserting / removing the insertion tube 16 into / from the region surrounded by the arm portion 74, the gripping protrusion 75 is retracted along the slide hole 76. As a result, the slide bar 72 moves backward against the urging force of the spring 78, so that the opening 38 is opened and the lock mechanism 70 can be unlocked (see FIG. 15B). Of course, the arm portion having such a locking mechanism may be applied to the nozzles 14a to 14l according to the above-described configurations, and the same applies to the nozzles 15a to 15g according to the following modifications.

  FIG. 15A is a plan view of the nozzle 15a according to the first modification of the nozzle 15 having the lock mechanism in a locked state, and FIG. 15B is a plan view of the nozzle 15a shown in FIG. 15A in an unlocked state.

  As shown in FIGS. 15A and 15B, the nozzle 15a includes an arm portion 74a having a lock mechanism 70a capable of opening and closing the opening 38 instead of the arm portion 32 of the nozzle 14 shown in FIG. The lock mechanism 70a is fixed to one end surface of the arm portion 74a constituting the opening 38, and has an expandable member 80 that can expand and contract from the end surface. The stretchable member 80 is formed of, for example, a bellows-like stretchable tube, so that the opening 38 is closed and locked in the expanded state shown in FIG. 16A, and the opening 38 is opened in the contracted state shown in FIG. 16B. And it will be unlocked.

  FIG. 16A is a plan view of a nozzle 15b according to a second modification of the nozzle 15 having a lock mechanism in a locked state, and FIG. 16B is a plan view of the nozzle 15b shown in FIG. 16A in an unlocked state.

  As shown in FIGS. 16A and 16B, the nozzle 15b includes an arm portion 74b having a lock mechanism 70b capable of opening and closing the opening 38 instead of the arm portion 32 of the nozzle 14 shown in FIG. The locking mechanism 70 b is screwed into a columnar fixing portion (bolt portion) 82 fixed to one end face of the arm portion 74 b constituting the opening 38 and a male screw 82 a formed on the outer peripheral surface of the fixing portion 82. And a movable part (nut part) 84 provided with a female screw 84a in the inner cavity.

  Therefore, in the lock mechanism 70 b, the movable portion 84 is screwed / advanced with respect to the fixed portion 82, and the distal end of the movable portion 84 is brought into contact with or close to the end surface constituting the other opening 38. The locked state is such that the opening 38 is closed (see FIG. 16A), and the movable portion 84 is screwed and retracted in the opposite direction with respect to the fixed portion 82, whereby the unlocked state in which the opening 38 is opened (FIG. 16B). reference).

  FIG. 17 is a plan view of a nozzle 15c according to a third modification of the nozzle 15 having a lock mechanism.

  As illustrated in FIG. 17, the nozzle 15 c includes an arm portion 74 c having a lock mechanism 70 c that can open and close the opening 38 instead of the arm portion 32 of the nozzle 14 illustrated in FIG. 2. The lock mechanism 70 c includes a curved rod-shaped swinging member 88 that is pivotally supported by a rotation shaft 86 at one end of an arm portion 74 c constituting the opening 38.

  Therefore, in the lock mechanism 70c, the swinging member 88 is rotated about the rotation shaft 86 and set to the closed position shown by the solid line in FIG. By rotating the member 88 and setting it to the open position indicated by the two-dot chain line in FIG. 17, the unlocked state is formed in which the opening 38 is opened. In the lock mechanism 70c, a torsion spring (not shown) is provided on the rotary shaft 86, and the oscillating member 88 is automatically set to a closed position indicated by a solid line in FIG. You may comprise as follows.

  18A is a plan view of the nozzle 15d according to a fourth modification of the nozzle 15 having a locking mechanism in a locked state, and FIG. 18B is a plan view of the nozzle 15d shown in FIG. 18A in an unlocked state.

  As shown in FIGS. 18A and 18B, the nozzle 15d includes an arm portion 74d having a lock mechanism 70d capable of opening and closing the opening 38 instead of the arm portion 32 of the nozzle 14 shown in FIG. The locking mechanism 70d has a pair of balloons 90, 90 that can be expanded (expanded) in a direction close to each other and contracted (folded) in a direction away from each other on opposite end surfaces of an arm portion 74d constituting the opening 38. Prepare.

  The balloon 90 can be contracted and expanded by a change in the internal pressure, and the liquid agent L is pumped from the contracted state (see FIG. 18B) to the inside through the expansion channel 92 communicating with the nozzle channel 34. To expand into a cylindrical shape (cylindrical shape) (see FIG. 18A). The balloon 90 is formed of, for example, the same material as that used for a general balloon catheter, such as polyethylene, polyethylene elastomer, polyamide, polyamide elastomer, polyurethane, polyurethane elastomer, polyolefin, polyolefin elastomer, polyester, polyester elastomer, and the like. Preferably, it may be formed of polyamide, polyamide elastomer, polyester, or polyester elastomer.

  As described above, in the applicator 10, for example, since the liquid L having a sufficient viscosity is applied, the liquid L discharged from the syringe 12 has a predetermined high pressure (liquid Pressure). Therefore, the lock mechanism 70d is in an unlocked state where each balloon 90 is deflated and the opening 38 is opened when the liquid L is not supplied from the syringe 12 (see FIG. 1) (see FIG. 18B). By supplying the liquid L through the nozzle flow path 34 and the expansion flow path 92, each balloon 90 is expanded and the opening 38 is closed (see FIG. 18A). That is, in the lock mechanism 70d, even if the user of the applicator 10 does not specially operate the lock mechanism 70d, the insertion tube 16 is disposed inside the arm portion 74d and the pusher 26 of the syringe 12 is simply pushed. The balloon 90 is expanded by the liquid pressure of the liquid L supplied from the syringe 12, and the nozzle 15d can be automatically locked. Of course, the balloon 90 may be installed only on one end surface of the arm portion 74d.

  19A is a plan view of the nozzle 15e according to a fifth modification of the nozzle 15 having a lock mechanism in a locked state, and FIG. 19B is a plan view of the nozzle 15e shown in FIG. 19A in an unlocked state.

  As shown in FIGS. 19A and 19B, the nozzle 15e includes an arm portion 74e having a lock mechanism 70e capable of opening and closing the opening 38, instead of the arm portion 32 of the nozzle 14 shown in FIG. The locking mechanism 70e has a tongue-like shape that can be expanded (stretched) toward the vicinity of the other end, and contracted (rolled) in a direction away from the vicinity of one end of the arm 74e constituting the opening 38. A flat balloon 94 is provided. The flat balloon 94 can be contracted and expanded by a change in internal pressure. From the contracted state (see FIG. 19B), the liquid agent L is pumped into the interior through the expansion channel 92 communicating with the nozzle channel 34. As it turns, it expands and expands into a tongue plate (see FIG. 19A). The flat balloon 94 is also substantially the same as the balloon 90 described above, for example, the same material as the balloon used for a general balloon catheter, such as polyethylene, polyethylene elastomer, polyamide, polyamide elastomer, polyurethane, polyurethane elastomer, polyolefin. , Polyolefin elastomer, polyester, polyester elastomer, etc., preferably polyamide, polyamide elastomer, polyester, polyester elastomer.

  Accordingly, the locking mechanism 70e is in an unlocked state in which the flat balloon 94 is deflated and wound and the opening 38 is opened when the liquid L is not supplied from the syringe 12 (see FIG. 1) (FIG. 19B). The liquid L is supplied via the nozzle flow path 34 and the expansion flow path 92, whereby the flat balloon 94 is expanded and expanded to be in a locked state in which the opening 38 is closed (see FIG. 19A). That is, also in the lock mechanism 70e, the insertion tube 16 is disposed inside the arm portion 74e even if the user of the applicator 10 does not specially operate the lock mechanism 70e in substantially the same manner as the lock mechanism 70d. By simply pushing the pusher 26 of the syringe 12 in this state, the flat balloon 94 is expanded by the liquid L supplied from the syringe 12, and the nozzle 15e can be automatically locked. Needless to say, the flat balloon 94 may be installed at both opposing ends of the arm portion 74e.

  20A is a plan view of the nozzle 15f according to a sixth modification of the nozzle 15 having a lock mechanism in the unlocked state, and FIG. 20B is a plan view of the nozzle 15f shown in FIG. 20A in the locked state.

  As shown in FIGS. 20A and 20B, the nozzle 15f includes an arm portion 74f having a lock mechanism 70f capable of opening and closing the opening 38 instead of the arm portion 32 of the nozzle 14 shown in FIG. The arm portion 74f is formed, for example, as a substantially semicircular ring, and the lock mechanism 70f includes a rack member 96 that can advance and retract in the radial direction along the opening side of the arm portion 74f. The rack member 96 has a rack gear 96 a on its inner surface, and the rack gear 96 a meshes with a pinion gear 98 a formed on a stopcock (valve) 98 that opens and closes the nozzle flow path 34. The rack member 96 is guided by being inserted through a guide hole 100 formed at one end of the arm portion 74f, and advances and retreats with the rotation of the pinion gear 98a, so that the opening 38 can be opened and closed.

  Therefore, in the lock mechanism 70f, as shown in FIG. 20A, in the state where the stopcock 98 is closed and the nozzle flow path 34 is closed, the rack member 96 is set to the retracted position and the opening 38 is opened. Is in a state. On the other hand, when opening the nozzle channel 34 with the stopcock 98 in the open position, the pinion gear 98a rotates in conjunction with the opening operation of the stopcock 98, and the rack member 96 is driven forward in conjunction with this. Then, as shown in FIG. 20B, when the stopcock 98 is in the fully open position, the rack member 96 is also in the predetermined forward position, and the locked state is obtained in which the opening 38 is closed. That is, in the lock mechanism 70f, when supplying the liquid L from the syringe 12, the rack member 96 is driven forward in conjunction with the operation of opening the stopcock 98 (opening of the nozzle flow path 34), thereby opening the opening 38. It is automatically closed and locked.

  FIG. 21A is a plan view of a nozzle 15g according to a seventh modification of the nozzle 15 having a lock mechanism in a locked state, and FIG. 21B is a plan view of the nozzle 15g shown in FIG. 21A in an unlocked state. FIG. 21C is a perspective view in the locked state shown in FIG. 21A.

  As shown in FIGS. 21A to 21C, the nozzle 15 g has a pair of arm portions 74 g having a lock mechanism 70 g that can open and close the opening portion 38 by opening and closing each other, instead of the arm portion 32 of the nozzle 14 shown in FIG. 2. 74h. Each of the arm portions 74g and 74h is configured as a substantially semicircular ring. One arm portion 74g is fixed to the base portion 30, and the other arm portion 74h is connected to the arm portion 74g by the rotating shaft 102. And can be rotated. The rotating shaft 102 has a branch channel that branches into each nozzle channel 34 of each arm portion 74g. Then, as shown in FIGS. 21A and 21C, when the arm portions 74g and 74h are set to the closed position, the distal end portions are in positions where they overlap each other, whereby the opening 38 can be reliably closed. .

  Accordingly, in the lock mechanism 70g, the arm portion 74h is rotated about the rotation shaft 102 and set to the closed position shown in FIGS. 21A and 21C, whereby the opening portion 38 is closed and the arm portion is closed. By turning 74h and setting the open position shown in FIG. 21B, the unlocked state in which the opening 38 is opened is obtained. In the lock mechanism 70g, a torsion spring (not shown) is provided on the rotary shaft 102, and the arm portion 74h is automatically set to the closed position shown in FIGS. 21A and 21C by the urging force of the torsion spring. You may comprise.

  Next, another configuration example of the applicator 10 configured as described above will be described.

  FIG. 22 is a perspective view of a liquid agent applicator 10a according to another configuration example of the liquid agent applicator 10 shown in FIG.

  In the liquid medicine applicator 10 including the nozzles 14 (14a to 14l) and 15 (15a to 15g), the nozzle 14 and the like are configured to be detachable from the syringe 12. However, as illustrated in FIG. For example, the liquid agent applicator 10a may be configured in such a manner that the nozzle 14m having a structure substantially similar to the nozzle 14 is integrally provided at the tip of the nozzle 12a. Thereby, in the applicator 10a, the process of mounting the nozzle 14m on the syringe 12a becomes unnecessary, and handling becomes easier. Furthermore, the manufacturing cost of the applicator 10a can be reduced by integrating the nozzle 14m with the syringe 12a. In FIG. 22, the nozzle 14m has a configuration substantially similar to that of the nozzle 14, but the applicator 10a has a configuration similar to that of the other nozzles 14a to 14l, 15 and 15a to 15g. Of course, the same applies to the following applicator 10b.

  23A is a plan view of a liquid agent applicator 10b according to still another configuration example of the liquid agent applicator 10 shown in FIG. 1, and FIG. 23B is a side view of the liquid agent applicator 10b shown in FIG. 23A.

  As shown in FIGS. 23A and 23B, the liquid agent applicator 10b has a small flat main body 62 having a liquid storage portion 62a instead of the syringe 12a of the applicator 10a shown in FIG. Is integrally provided with a nozzle 14n provided with a nozzle flow path 34 communicating with the liquid storage section 62a. A bulging portion 62b bulging in a flat hemispherical shape is provided on the upper and lower surfaces of the substantially central portion of the main body 62, and the inside of the bulging portion 62b is a liquid storage portion 62a. In the main body 62, at least the bulging portion 62b constituting the liquid storage portion 62a is formed of a flexible resin material or the like.

  Therefore, in the applicator 10b, with the user holding the main body 62 with one hand, the bulging portion 62b (liquid storage portion 62a) is formed with the thumb and index finger, for example, as shown by the arrow P in FIG. 23B. By pressing in the crushing direction, the liquid L can be discharged from the discharge hole 36 of the nozzle 14n. Thus, since the applicator 10b does not require a syringe, the overall structure can be made more compact and low-cost, and the handleability can be further improved.

  The present invention is not limited to the above-described embodiment, and it is needless to say that various configurations or processes can be adopted without departing from the gist of the present invention.

  For example, the liquid agent L to be discharged / applied by the liquid agent applicator 10 may of course be other than a liquid agent containing a sealant containing cyanoacrylate and an antibacterial agent such as chlorhexidine and having sufficient viscosity, The point is that it can be solidified by being applied to the periphery of the insertion portion 20 or can cover and close the gap G with an appropriate viscosity. For example, a gel or polysaccharide gel mainly composed of polyethylene glycol is used. Also good. In addition, the liquid agent applied with the said applicator means a liquid thing in the apply | coated state, and naturally also includes what solidifies like a sealant after apply | coating.

DESCRIPTION OF SYMBOLS 10, 10a, 10b ... Liquid agent applicator 12, 12a ... Syringe 14, 14a-14n, 15, 15a-15g ... Nozzle 16 ... Insertion tube 18 ... Biological tissue 20 ... Insertion part 32, 40, 42, 74, 74a-74h ... Arms 36, 36a, 48, 50 ... Discharge holes 38, 44, 46 ... Openings 47, 49 ... Legs 70, 70a-70g ... Lock mechanism

Claims (9)

Having an arm portion that can surround at least a part of the outer peripheral surface of the elongated insertion body to be inserted into the living tissue;
A liquid agent applicator, wherein the arm portion is provided with a discharge hole for discharging a liquid agent for covering the insertion portion of the insert body into the living tissue toward the outer peripheral surface of the insert body. The liquid medicine applicator according to claim 1,
A liquid storage part filled with the liquid agent;
A nozzle having the arm part, and capable of circulating the liquid agent from the liquid storage part to the arm part;
A liquid applicator characterized by comprising: The liquid medicine applicator according to claim 1 or 2,
A liquid agent applicator comprising a plurality of the discharge holes. In the liquid agent applicator according to any one of claims 1 to 3,
The liquid agent applicator, wherein the arm portion has a ring shape having an inner diameter larger than an outer diameter of the insert. In the liquid agent applicator according to any one of claims 1 to 4,
The liquid agent applicator, wherein the arm portion has an opening through which an outer diameter of the insert can pass in a part of a direction surrounding the insert. The liquid medicine applicator according to claim 5,
The liquid agent applicator, wherein the opening is an inclined surface having a width that increases from an inner surface side to an outer surface side of the arm portion. The liquid medicine applicator according to claim 5,
A liquid agent applicator comprising a lock mechanism capable of opening and closing the opening. In the liquid agent applicator according to any one of claims 1 to 7,
The discharge hole is provided on the inner surface of the arm portion facing the outer peripheral surface of the insert or on the lower surface of the arm portion that faces the insertion portion. . In the liquid agent applicator according to any one of claims 1 to 8,
The liquid agent applicator characterized in that the arm part is provided with a leg part that lands on the surface of the living tissue and defines a height position from the insertion part of the arm part.

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