技术领域technical field
本发明涉及一种用于将药液喷雾到生物体的患部的生物体用药液注入用具。The present invention relates to a device for injecting a medicinal solution for a living body for spraying a medicinal solution to an affected part of a living body.
背景技术Background technique
在生物体内的处置或治疗等中一般进行如下操作：使套管针通过形成于腹部等的孔中，进而使喷嘴通过套管针内部而向体腔内导入药液。In vivo treatment or treatment, etc., generally, a trocar is passed through a hole formed in the abdomen or the like, and a nozzle is passed through the inside of the trocar to introduce a medical solution into a body cavity.
而且，在专利文献1中公开有如下技术：即使在喷嘴因套管针而配置受限的状态下，也能够利用喷嘴向大范围喷射药液。Furthermore, Patent Document 1 discloses a technology that can spray a chemical solution over a wide range from a nozzle even in a state where the arrangement of the nozzle is restricted by a trocar.
专利文献1中所记载的生物体用药液注入用具(在该文献中记载为生物体组织粘合剂涂布用具。)能够将多种药液及使这些药液混合的气体相对于喷嘴的轴心方向倾斜地喷雾。如此，若为将药液相对于喷嘴的轴心方向倾斜地喷雾的结构，则通过使喷嘴围绕轴心转动，能够将药液向大范围喷雾。The biomedical solution injector described in Patent Document 1 (described as a biological tissue adhesive applicator in this document) is capable of injecting a plurality of medicinal solutions and the gas for mixing these medicinal solutions to the nozzle. Spray obliquely in the axial direction. In this way, if the chemical liquid is sprayed obliquely with respect to the axial direction of the nozzle, the chemical liquid can be sprayed over a wide area by rotating the nozzle around the axial center.
现有技术文献prior art literature
专利文献patent documents
专利文献1：日本特开2013-74988号公报Patent Document 1: Japanese Patent Laid-Open No. 2013-74988
发明内容Contents of the invention
发明要解决的技术课题The technical problem to be solved by the invention
在专利文献1中所公开的生物体用药液注入用具中，气体喷出路及药液流通路这两者的远位端部相对于喷嘴的轴心方向倾斜地形成，由此将药液及气体喷雾。In the biological drug solution injector disclosed in Patent Document 1, the distal end portions of both the gas ejection path and the drug solution flow path are formed obliquely with respect to the axial center direction of the nozzle, thereby injecting the drug solution and gas spray.
而且，在该生物体用药液注入用具中，当以高压力(例如0.1MPa)将气体供给到药液时，需要防止因其风压而使作为喷雾对象的组织粘合用片材等片材位置偏移。Moreover, in this biomedical solution injector, when the gas is supplied to the medical solution at a high pressure (for example, 0.1 MPa), it is necessary to prevent the tissue adhesion sheet or the like as the spray object from being damaged by the wind pressure. Material position offset.
当为了防止该位置偏移而降低气体的供给压力时(例如0.07MPa)，关于利用气体使药液的粒度变细而使多种药液容易混合并将药液有效地涂布至下风处，有改善的余地。When the supply pressure of the gas is lowered (for example, 0.07 MPa) to prevent this positional shift, the particle size of the chemical liquid is reduced by the gas, so that various chemical liquids are easily mixed and the chemical liquid is effectively applied to the downwind area. There is room for improvement.
本发明是鉴于上述课题而完成的，其目的在于提供一种能够使药液更加细粒化而喷雾到体腔内的生物体用药液注入用具。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a drug solution injector for living organisms that can further finely granulate the drug solution and spray it into a body cavity.
用于解决技术课题的手段Means for solving technical problems
本发明的生物体用药液注入用具的特征在于，具备：主体部；及喷嘴，从主体部延伸，喷嘴具备：管状的药液吐出部，设置于喷嘴的前端部并吐出位于内部空间中的药液；及气体喷出部，位于药液吐出部的附近，通过对从药液吐出部吐出的药液喷射气体而使药液以雾状喷雾，在药液吐出部的周壁上，在气体喷出部侧形成有流入开口部，在与气体喷出部侧相反的一侧形成有流出开口部，气体喷出部向与从药液吐出部吐出的药液的吐出方向交叉的方向喷射气体，流入开口部及流出开口部形成于通过气体喷出部喷射的气体的喷射方向的延长线上。The biological drug solution injector of the present invention is characterized in that it includes: a main body; and a nozzle extending from the main body, and the nozzle includes: a tubular drug solution discharge part provided at the front end of the nozzle to discharge the liquid in the internal space. liquid medicine; and the gas ejection part, located in the vicinity of the liquid medicine discharge part, by injecting gas to the liquid medicine ejected from the liquid medicine discharge part, the liquid medicine is sprayed in mist form, on the peripheral wall of the liquid medicine discharge part, on the gas An inflow opening is formed on the side of the discharge part, and an outflow opening is formed on the side opposite to the side of the gas discharge part, and the gas discharge part sprays gas in a direction intersecting the discharge direction of the liquid medicine discharged from the liquid medicine discharge part. The inflow opening and the outflow opening are formed on the extension line of the injection direction of the gas injected from the gas injection part.
发明的效果The effect of the invention
根据本发明，可提供一种能够使药液更加细粒化而喷雾到体腔内的生物体用药液注入用具。According to the present invention, it is possible to provide a device for injecting a drug solution for a living body, which can finely granulate the drug solution and spray it into a body cavity.
附图说明Description of drawings
图1是表示本实施方式所涉及的生物体组织粘合剂涂布用具及其周边设备的立体图。FIG. 1 is a perspective view showing a living tissue adhesive applicator and its peripheral equipment according to the present embodiment.
图2是表示位于图1的喷嘴的前端部的头部的放大立体图。FIG. 2 is an enlarged perspective view showing a head portion located at the tip of the nozzle in FIG. 1 .
图3是表示通过吐出管及气体喷出部的中心轴的铅垂剖面的喷嘴的前端部的剖视图。3 is a cross-sectional view of the front end portion of the nozzle, showing a vertical cross-section passing through the central axis of the discharge pipe and the gas discharge portion.
图4是头部的主视图。Fig. 4 is a front view of the head.
图5是关于比较例及实施例示出送气气体的每个空气压力下的风力的图。Fig. 5 is a graph showing the wind force for each air pressure of the blown gas in relation to the comparative example and the working example.
图6是表示关于比较例及实施例的喷雾药液的粒度的图。Fig. 6 is a graph showing the particle size of sprayed chemical liquids in Comparative Examples and Examples.
图7是表示变形例所涉及的头部的图，是表示通过吐出管及气体喷出部的中心轴的铅垂剖面的喷嘴的前端部的剖视图。7 is a view showing a head portion according to a modified example, and is a sectional view showing a front end portion of a nozzle in a vertical section passing through the central axis of a discharge pipe and a gas discharge portion.
具体实施方式Detailed ways
以下，根据附图对本发明的生物体用药液注入用具的实施方式进行说明。Hereinafter, embodiments of the biological drug solution injection tool of the present invention will be described with reference to the drawings.
另外，以下说明的实施方式仅仅是用于使得容易理解本发明的一例，并不限定本发明。即，关于以下说明的部件的形状、尺寸、配置等，在不脱离本发明的主旨的情况下当然能够进行变更、改良，并且本发明中当然包括其等价物。In addition, embodiment described below is just an example for making understanding of this invention easy, and does not limit this invention. That is, the shape, size, arrangement, etc. of the members described below can of course be changed and improved without departing from the gist of the present invention, and equivalents thereof are of course included in the present invention.
并且，在所有附图中，对相同的构成要件标注相同的附图标记，并适当地省略重复说明。并且，以下将生物体用药液注入用具中的吐出药液的一侧(远离手术人员的一侧)设为前侧或远端侧，将其相反的一侧设为后侧或近端侧，也分别称为前端侧、基端侧。In addition, in all the drawings, the same reference numerals are assigned to the same components, and overlapping descriptions are appropriately omitted. In addition, in the following, the side (the side away from the operator) from which the drug solution is discharged in the biological drug solution injection tool is referred to as the front side or the distal end side, and the opposite side thereof is referred to as the rear side or the proximal end side. , also referred to as front end side and base end side respectively.
＜本发明的概要＞<Summary of the present invention>
首先，主要参考图1至图3对本发明的概要进行说明。First, the outline of the present invention will be described mainly with reference to FIGS. 1 to 3 .
图1是表示本实施方式所涉及的生物体组织粘合剂涂布用具1及其周边设备的立体图。图2是表示位于图1的喷嘴X的前端部的头部12的放大立体图，图3是表示通过吐出管13及气体喷出部12f的中心轴的铅垂剖面的喷嘴X的前端部的剖视图。FIG. 1 is a perspective view showing a living tissue adhesive applicator 1 and its peripheral devices according to the present embodiment. 2 is an enlarged perspective view showing the head 12 located at the tip of the nozzle X in FIG. 1 , and FIG. 3 is a cross-sectional view showing the tip of the nozzle X in a vertical section passing through the central axis of the discharge pipe 13 and the gas ejection portion 12f. .
如图1所示，生物体用药液注入用具(生物体组织粘合剂涂布用具1)具备主体部2和从主体部2延伸的喷嘴X。As shown in FIG. 1 , the biological drug solution injection tool (biological tissue adhesive application tool 1 ) includes a main body 2 and a nozzle X extending from the main body 2 .
喷嘴X具备：设置于喷嘴X的前端部(头部12)并吐出位于内部空间中的药液10的管状的药液吐出部(吐出管13)；及位于吐出管13的附近，通过对从吐出管13吐出的药液10喷射气体(送气气体G)而使药液10以雾状喷雾的气体喷出部12f。The nozzle X includes: a tubular liquid medicine discharge part (discharge pipe 13) provided at the front end (head 12) of the nozzle X to discharge the liquid medicine 10 located in the internal space; The gas ejection unit 12 f sprays gas (gas supply gas G) from the liquid medicine 10 discharged from the discharge pipe 13 to spray the liquid medicine 10 in a mist form.
在吐出管13的周壁13a上，在气体喷出部12f侧形成有流入开口部(狭缝13b)，在与气体喷出部12f侧相反的一侧形成有流出开口部(狭缝13c)。On the peripheral wall 13a of the discharge pipe 13, an inflow opening (slit 13b) is formed on the side of the gas discharge part 12f, and an outflow opening (slit 13c) is formed on the side opposite to the side of the gas discharge part 12f.
气体喷出部12f向与从吐出管13吐出的药液10的吐出方向交叉的方向喷射送气气体G。The gas ejection unit 12 f ejects the gas supply gas G in a direction intersecting the ejection direction of the medicinal solution 10 ejected from the ejection tube 13 .
狭缝13b、13c的特征在于，形成于通过气体喷出部12f喷射送气气体G的喷射方向的延长线上。The slits 13b and 13c are characterized in that they are formed on the extension line of the jetting direction of the blown gas G jetted from the gas jetting part 12f.
在本实施方式所涉及的吐出管13中，设为使送气气体G流入的流入开口部为狭缝13b、使送气气体G流出的流出开口部为狭缝13c来进行说明，但本发明并不限定于这种结构。In the discharge pipe 13 according to the present embodiment, the inflow opening through which the blown gas G flows is described as the slit 13b, and the outflow opening through which the blown gas G flows out is described as the slit 13c. limited to this structure.
即，吐出管13中的“流入开口部”及“流出开口部”只要能够使送气气体G通入药液吐出部(吐出管13)内将药液10分断即可。因此，“流入开口部”及“流出开口部”并不限定于形成为长尺寸的狭缝13b、13c，也可以为圆孔，也可以为格子状的孔。That is, the "inflow opening" and "outflow opening" in the discharge tube 13 may be used as long as they allow the gas supply gas G to flow into the liquid medicine discharge part (discharge tube 13) and divide the liquid medicine 10. Therefore, the "inflow opening" and the "outflow opening" are not limited to the elongated slits 13b and 13c, and may be circular holes or lattice-shaped holes.
此外，它们可以设置有多个，也可以将网状的部件接合于药液吐出部(吐出管13)的前端部而形成。In addition, a plurality of these may be provided, and a mesh-shaped member may be joined to the front end portion of the drug solution discharge portion (discharge tube 13 ).
另外，以下对如下结构进行说明：吐出管13与喷嘴X的延伸方向平行地延伸，并且气体喷出部12f沿与吐出管13的延伸方向交叉的方向延伸而将送气气体G喷射到从吐出管13吐出的药液10。In addition, the structure in which the discharge pipe 13 extends parallel to the direction in which the nozzle X extends, and the gas ejection portion 12f extends in a direction intersecting the direction in which the discharge pipe 13 extends so as to spray the blown gas G from the discharge pipe 13 will be described below. 13 spit out the liquid medicine 10 .
然而，并不限定于这种结构，也可以为相反的结构(即，气体喷出部12f与喷嘴X的延伸方向平行地延伸，并且吐出管13沿与气体喷出部12f的延伸方向交叉的方向延伸的结构)。However, it is not limited to this configuration, and a reverse configuration (that is, the gas ejection portion 12f extends parallel to the extending direction of the nozzle X, and the ejection pipe 13 extends in a direction intersecting the extending direction of the gas ejection portion 12f may also be used. oriented structure).
根据上述结构，利用以通过形成于药液吐出部(吐出管13)的流入开口部(狭缝13b)及流出开口部(狭缝13c)的方式喷射送气气体G的结构，能够使供给至吐出管13的药液10更加细粒化而进行喷雾。According to the above-mentioned structure, the air-feeding gas G is injected so as to pass through the inflow opening (slit 13 b ) and the outflow opening ( slit 13 c ) formed in the liquid medicine discharge part (discharge pipe 13 ), so that the supply to the discharge can be achieved. The chemical solution 10 in the tube 13 is further finely granulated and sprayed.
＜关于整体结构＞＜About the overall structure＞
主要参考图1及图2对作为本发明的生物体用药液注入用具的生物体组织粘合剂涂布用具1及其周边设备的整体结构进行说明。The overall structure of the biological tissue adhesive application tool 1 and its peripheral equipment as the biological drug solution injecting tool of the present invention will be described mainly with reference to FIGS. 1 and 2 .
本发明所涉及的生物体用药液注入用具(生物体组织粘合剂涂布用具1)为向体内注入(涂布/喷雾)药液的用具。作为本发明所涉及的生物体用药液注入用具的注入对象的药液10(参考图3)可以为一种，也可以如由本实施方式所涉及的生物体组织粘合剂涂布用具1喷雾的药液10那样为两种以上。生物体组织粘合剂涂布用具1具有在后述的多种药液10的吐出处进行喷雾/混合而作为粘合剂涂布于生物体内的器官等的功能。The living body drug solution injection tool (biological tissue adhesive application tool 1 ) according to the present invention is a tool for injecting (applying/spraying) a drug solution into the body. The drug solution 10 (refer to FIG. 3 ) to be injected into the biological drug solution injection tool according to the present invention may be one kind, or may be sprayed by the biological tissue adhesive application tool 1 according to the present embodiment. There are two or more types of medicinal solution 10. The living tissue adhesive applicator 1 has a function of spraying/mixing various kinds of medical solutions 10 to be applied as an adhesive to organs in the living body and the like at the discharge point described later.
生物体组织粘合剂涂布用具1具备在内部具有空间2s的主体部2和与主体部2的空间2s连通并向远端侧延伸的喷嘴X。The living tissue adhesive applicator 1 includes a main body 2 having a space 2 s therein, and a nozzle X communicating with the space 2 s of the main body 2 and extending toward the distal side.
喷嘴X具备与主体部2内部的空间2s连通并从主体部2的前端侧延长而设置的延长部11和安装于延长部11的前端的后述的头部12。The nozzle X includes an extension part 11 communicated with the space 2s inside the main body part 2 and extended from the front end side of the main body part 2 , and a head part 12 , which will be described later, attached to the front end of the extension part 11 .
在主体部2的近端部，以向近端侧突出的方式设置有注射器安装口2d。药液10从安装于注射器安装口2d的注射器17及柱塞7经由主体部2供给到吐出管13。A syringe attachment port 2 d is provided at a proximal end portion of the main body portion 2 so as to protrude toward the proximal end side. The medical solution 10 is supplied from the syringe 17 and the plunger 7 attached to the syringe attachment port 2 d to the discharge tube 13 via the main body 2 .
并且，送气气体G(参考图3)经由气体注入部2g填充于主体部2。填充于主体部2的送气气体G供给到气体喷出部12f。And the main body part 2 is filled with the supply gas G (refer FIG. 3) via the gas injection part 2g. The blowing gas G filled in the main body part 2 is supplied to the gas ejection part 12f.
在主体2上设置有用于向其内部的空间2s内注入送气气体G(参考图3)的气体注入部2g。具体而言，气体注入部2g形成于在主体部2上形成的向上方且后方(近端侧)倾斜地突出的部分的突出处。The main body 2 is provided with a gas injection part 2g for injecting the blowing gas G (refer to FIG. 3 ) into the space 2s inside the body 2 . Specifically, the gas injection portion 2 g is formed at a protrusion of a portion formed on the main body portion 2 that obliquely protrudes upward and rearward (proximate side).
就气体喷出部12f而言，关于其详细内容，将在后面进行叙述，其喷射从气体注入部2g填充于主体部2内部的空间2s内的送气气体G，并将从吐出管13吐出的药液10以雾状喷雾混合。The gas ejection unit 12f, whose details will be described later, injects the blown gas G filled in the space 2s inside the main body 2 from the gas injection unit 2g, and discharges the gas G discharged from the discharge pipe 13. The medicinal solution 10 is mixed with mist spray.
在生物体组织粘合剂涂布用具1上连接有向主体部2导入用于将药液10喷雾的送气气体G的送气软管31。送气软管31连接于调整送气气体G的量的调节器30，并且经由空气过滤器9连接于主体部2。An air supply hose 31 for introducing air supply gas G for spraying the medical solution 10 into the main body 2 is connected to the living tissue adhesive application tool 1 . The air supply hose 31 is connected to the regulator 30 for adjusting the amount of the air supply gas G, and is connected to the main body 2 via the air filter 9 .
具体而言，送气软管31由设置于基端侧的连接器31a连接于调节器30，并且由设置于前端侧的连接器31b连接于空气过滤器9的连接口9a。通过使从调节器30供给的送气气体G通入空气过滤器9而从送气气体G中移除尘埃并去除杂菌。Specifically, the air supply hose 31 is connected to the regulator 30 by a connector 31a provided on the base end side, and is connected to the connection port 9a of the air filter 9 by a connector 31b provided on the front end side. Dust is removed from the blown gas G and miscellaneous bacteria are removed by passing the blown gas G supplied from the regulator 30 through the air filter 9 .
送气气体G从调节器30经由送气软管31、空气过滤器9、气体注入部2g导入/填充于主体部2内部的空间2s。The blown gas G is introduced from the regulator 30 through the blown hose 31 , the air filter 9 , and the gas injection part 2 g to be introduced into/filled into the space 2 s inside the main body part 2 .
并且，在主体部2上安装有用于将不同的药液经由注射器安装口2d导入到主体部2(更具体而言，位于主体部2内并连接于吐出管13的未图示的软管)的内部的各设置有两个的柱塞7及注射器17。In addition, the main body 2 is attached to the main body 2 for introducing different medical solutions into the main body 2 through the syringe attachment port 2d (more specifically, a hose not shown in the main body 2 and connected to the discharge tube 13). Two plungers 7 and syringes 17 are each provided inside.
具体而言，在主体部2的后表面中的两侧的端部，两个部位向后方突出，在这些部位的后端形成有作为药液注入部的注射器安装口2d。在该两个注射器安装口2d分别连接有注射器17。分别填充于两根注射器17内的药液10通过柱塞7被压入注射器17内而经由注射器安装口2d经过主体部2内的未图示的软管供给到吐出管13。Specifically, at both end portions of the rear surface of the main body portion 2, two portions protrude rearward, and a syringe attachment port 2d serving as a drug solution injection portion is formed at the rear end of these portions. The syringes 17 are respectively connected to the two syringe mounting ports 2d. The medicinal solution 10 filled in the two syringes 17 is pushed into the syringes 17 by the plunger 7 and supplied to the discharge tube 13 via the syringe attachment port 2 d through a not-shown hose in the main body 2 .
并且，生物体组织粘合剂涂布用具1具备用于将两个柱塞7同时压向注射器17的柱塞保持件8。柱塞保持件8以能够与两个柱塞7的基端侧抵接的大小形成。Furthermore, the living tissue adhesive application tool 1 includes a plunger holder 8 for simultaneously pressing the two plungers 7 to the syringe 17 . The plunger holder 8 is formed in a size capable of abutting against the base end sides of the two plungers 7 .
喷嘴X所具备的延长部11用于确保用于将安装于延长部11的前端的头部12配设于体腔内的长度。例如，在使用胸腔镜进行手术时使用生物体组织粘合剂涂布用具1。The extension part 11 included in the nozzle X is used to ensure the length for arranging the head part 12 attached to the tip of the extension part 11 in the body cavity. For example, the biological tissue adhesive application tool 1 is used in surgery using a thoracoscope.
例如，在插通未图示的套管针内而进行基于EAS(endoscope assisted surgery：内窥镜辅助手术)的手术时，需要在套管针的插通处涂布药液10。在该情况下，由于喷嘴X具备延长部11，因此能够沿轴心方向加长喷嘴X而根据药液10的涂布位置延长将药液10喷雾的部位即头部12的可到达位置。For example, when an operation by EAS (endoscope assisted surgery: endoscope-assisted surgery) is performed by inserting a trocar (not shown), it is necessary to apply the medical solution 10 to the insertion site of the trocar. In this case, since the nozzle X includes the extension portion 11 , the nozzle X can be lengthened in the axial direction to extend the reachable position of the head 12 , which is the part where the chemical solution 10 is sprayed, according to the application position of the chemical solution 10 .
＜关于头部周围的结构＞＜About the structure around the head＞
接着，除了参考图1至图3以外，还主要参考图4对头部12及头部12周围的结构进行说明。图4是头部12的主视图。Next, the head 12 and the structure around the head 12 will be described mainly with reference to FIG. 4 in addition to FIGS. 1 to 3 . FIG. 4 is a front view of the head 12 .
如图2及图3所示，本实施方式所涉及的头部12具备头部主体12b、两根管状的吐出管13及位于吐出管13的附近并对从吐出管13吐出的药液10喷射送气气体G的两个气体喷出部12f。As shown in FIGS. 2 and 3 , the head 12 according to the present embodiment includes a head body 12 b, two tubular discharge tubes 13 , and is located near the discharge tubes 13 to control the liquid medicine 10 discharged from the discharge tubes 13 . The two gas ejection parts 12f which inject the air-feeding gas G.
在头部主体12b的后端部形成有与延长部11的前端嵌合的嵌合部12h。嵌合部12h具有直径比头部主体12b中的其他部位小的外表面，并且该外表面以与延长部11的内表面对置的状态嵌合。A fitting portion 12h fitted to the front end of the extension portion 11 is formed at the rear end portion of the head body 12b. The fitting portion 12 h has an outer surface having a smaller diameter than other parts of the head body 12 b, and the outer surface is fitted in a state of facing the inner surface of the extension portion 11 .
[吐出管][spit tube]
吐出管13从头部主体12b向远端侧延伸。利用由气体喷出部12f喷射的送气气体G，药液10以雾状喷雾。The discharge tube 13 extends distally from the head body 12b. The chemical solution 10 is sprayed in a mist form by the blowing gas G sprayed from the gas spraying part 12f.
在吐出管13的基端部连接有未图示的药液流通管的前端部，该药液流通管与注射器安装口2d连通。从两根吐出管13吐出作为混合对象的两种药液。To the base end of the discharge tube 13 is connected a front end portion of a medical solution flow tube (not shown), and the drug solution flow tube communicates with the syringe attachment port 2d. Two kinds of medicinal liquids to be mixed are discharged from the two discharge tubes 13 .
在本实施方式中，吐出管13中的一方吐出包含纤维蛋白原等的药液。吐出管13中的另一方使如下药液流通，该药液包含凝血酶等且用于作用于纤维蛋白原等而使其作为粘合剂发挥功能。In the present embodiment, one of the discharge tubes 13 discharges a drug solution containing fibrinogen or the like. The other of the discharge tubes 13 circulates a medical solution containing thrombin and the like for acting on fibrinogen and the like to function as a binder.
在药液吐出部(吐出管13)上，在比流入开口部(狭缝13b)及流出开口部(狭缝13c)更靠近端侧(作为头部主体12b侧的基端侧)形成有绕整周形成的环绕部13d。On the liquid medicine discharge part (discharge tube 13), a winding tube is formed on the end side (the base end side of the head main body 12b side) than the inflow opening part (slit 13b) and the outflow opening part (slit 13c). Surrounding portion 13d formed all around.
即，在本实施方式所涉及的吐出管13中，在环绕方向上具有未与狭缝13b、13c交叉的部位(剖面圆形的部位)。That is, in the discharge pipe 13 according to the present embodiment, there are parts (parts having a circular cross section) that do not intersect the slits 13b and 13c in the circumferential direction.
根据上述结构，通过形成环绕部13d，能够抑制因流入开口部(狭缝13b)及流出开口部(狭缝13c)而使药液吐出部(吐出管13)的刚性降低。According to the above configuration, by forming the surrounding portion 13d, it is possible to suppress a decrease in the rigidity of the liquid medicine discharge portion (discharge tube 13) due to the inflow opening (slit 13b) and the outflow opening (slit 13c).
如图4所示，流入开口部(狭缝13b)的外周侧的开口宽度W2比内周侧的开口宽度W1宽。As shown in FIG. 4 , the opening width W2 on the outer peripheral side of the inflow opening (slit 13 b ) is wider than the opening width W1 on the inner peripheral side.
在此，“宽度”是指从轴向(图4所示的方向)观察喷嘴X的头部12时与气体喷出部12f的喷射方向正交的方向的长度。流入开口部的外周侧及内周侧的含义与吐出管13的外周侧及内周侧相同。Here, the "width" refers to the length in the direction perpendicular to the jetting direction of the gas jetting part 12f when the head 12 of the nozzle X is viewed from the axial direction (the direction shown in FIG. 4 ). The outer peripheral side and the inner peripheral side of the inflow opening have the same meaning as the outer peripheral side and the inner peripheral side of the discharge pipe 13 .
根据上述结构，通过流入开口部(狭缝13b)的外周侧的开口宽度W2比内周侧的开口宽度W1宽，能够将送气气体G宽范围地取入到吐出管13中，并且加快取入到吐出管13内部的送气气体G的流速。因此，将供给至吐出管13的内部的药液10利用送气气体G剪切而变得容易细粒化。According to the above configuration, since the opening width W2 on the outer peripheral side of the inflow opening (slit 13 b ) is wider than the opening width W1 on the inner peripheral side, it is possible to take in the blown gas G into the discharge pipe 13 over a wide range and at a faster rate. The flow velocity of the blown gas G inside the discharge pipe 13 . Therefore, the chemical solution 10 supplied to the inside of the discharge tube 13 is easily granulated by shearing by the blowing gas G.
如图4所示，流入开口部(狭缝13b)的外周侧的开口宽度W2比气体喷出部12f的流路直径D宽。As shown in FIG. 4 , the opening width W2 on the outer peripheral side of the inflow opening (slit 13 b ) is wider than the flow path diameter D of the gas ejection portion 12 f.
若从气体喷出部12f喷射的送气气体G从气体喷出部12f排出，则送气气体G的喷雾区域随着远离气体喷出部12f而变宽。When the blown gas G sprayed from the gas blowout part 12f is discharged from the gas blowout part 12f, the spray area of the blown gas G becomes wider as the distance from the gas blowout part 12f increases.
根据上述结构，通过狭缝13b的开口宽度W2比气体喷出部12f的流路直径D宽，能够将从气体喷出部12f排出而扩散的送气气体G从狭缝13b宽广地取入。According to the above configuration, since the opening width W2 of the slit 13b is wider than the flow path diameter D of the gas ejection portion 12f, the blowing gas G discharged and diffused from the gas ejection portion 12f can be widely taken in through the slit 13b.
反过来说，气体喷出部12f的流路直径D比狭缝13b的外周侧的开口宽度W2狭窄地形成。如此，通过流路直径D狭窄，气体喷出部12f的流路面积变小，通过与气体喷出部12f的壁面接触而引起的压力损失，能够降低从气体喷出部12f供给的送气气体G的风压，并且增大风速。因此，能够抑制在药液10的喷雾区域产生偏差。Conversely, the flow path diameter D of the gas ejection portion 12f is narrower than the opening width W2 on the outer peripheral side of the slit 13b. In this way, the channel diameter D is narrowed, the flow channel area of the gas ejection part 12f is reduced, and the pressure loss caused by contact with the wall surface of the gas ejection part 12f can reduce the supply gas G supplied from the gas ejection part 12f. wind pressure and increase the wind speed. Therefore, it is possible to suppress occurrence of variation in the spraying area of the chemical solution 10 .
流入开口部(狭缝13b)的内周侧的开口宽度W1比气体喷出部12f的流路直径D窄。The opening width W1 on the inner peripheral side of the inflow opening (slit 13 b ) is narrower than the flow path diameter D of the gas ejection portion 12 f.
根据上述结构，加快送气气体G的流速而将送气气体G取入到吐出管13的内部，并将供给至吐出管13的内部的药液10剪切而变得容易细粒化。According to the above configuration, the flow velocity of the gas supply gas G is increased to take the gas supply gas G into the discharge tube 13 , and the liquid medicine 10 supplied to the discharge tube 13 is sheared and finely divided.
流出开口部(狭缝13c)的外周侧的开口宽度W4比内周侧的开口宽度W3宽。The opening width W4 on the outer peripheral side of the outflow opening (slit 13 c ) is wider than the opening width W3 on the inner peripheral side.
通过用外周侧的开口宽度W4比内周侧的开口宽度W3宽的流出开口部(狭缝13c)将流入到吐出管13中的药液10喷出到外部，能够喷出细粒化的药液。The chemical solution 10 that has flowed into the discharge pipe 13 is discharged to the outside through the outflow opening (slit 13 c ) whose opening width W4 on the outer peripheral side is wider than the opening width W3 on the inner peripheral side, so that a finely granulated chemical solution can be discharged. .
反过来说，狭缝13c的内周侧的开口宽度W3比狭缝13b的外周侧的开口宽度W4窄。通过如此构成，能够抑制雾状化之前的药液10经过开口宽度W3向下方滴落。Conversely, the opening width W3 on the inner peripheral side of the slit 13c is narrower than the opening width W4 on the outer peripheral side of the slit 13b. With such a configuration, it is possible to suppress downward dripping of the chemical solution 10 before nebulization through the opening width W3.
流入开口部(狭缝13b)和流出开口部(狭缝13c)中的至少任一个形成为狭缝状，且形成为在药液吐出部(吐出管13)的延伸方向上较长。At least one of the inflow opening (slit 13 b ) and the outflow opening ( slit 13 c ) is formed in a slit shape, and is formed to be long in the extending direction of the liquid medicine discharge part (discharge tube 13 ).
另外，在本实施方式中，如上所述，流入开口部及流出开口部均形成为狭缝状。然而，仅一方也可以为圆孔或矩形孔，而不是狭缝状。In addition, in this embodiment, both the inflow opening and the outflow opening are formed in a slit shape as described above. However, only one side may be a circular hole or a rectangular hole instead of a slit shape.
如上所述，若流入开口部和流出开口部中的至少一方为与作为药液10的流路方向的吐出管13的延伸方向平行地延伸的狭缝13b、13c，则在如下观点上优选，即，即使是流速快的药液10，通过使送气气体G经过狭缝13b、狭缝13c，也能够将药液10在流路方向上的宽范围内分断。As described above, if at least one of the inflow opening and the outflow opening is the slits 13b, 13c extending parallel to the direction in which the discharge tube 13 extends as the flow path direction of the medical solution 10, it is preferable from the following viewpoints, That is, even if the flow rate of the medical solution 10 is fast, by passing the gas supply gas G through the slits 13b and 13c, the medical solution 10 can be divided in a wide range in the flow path direction.
如图2所示，当沿径向观察吐出管13的外表面时，作为狭缝13b、13c的近端侧的缘面的底部形成为圆弧状。即，狭缝13b、狭缝13c具有圆弧状的缘部。As shown in FIG. 2 , when the outer surface of the discharge tube 13 is viewed in the radial direction, the bottoms of the slits 13 b and 13 c are formed in an arc shape as the proximal edge surfaces. That is, the slit 13b and the slit 13c have arc-shaped edges.
通过如此形成狭缝13b，容易将从气体喷出部12f喷射的送气气体G接收到吐出管13的内部。By forming the slit 13b in this way, the blown gas G injected from the gas ejection portion 12f is easily received into the discharge pipe 13 .
此外，狭缝13b、13c的底部以朝向外周侧宽广地开放的方式形成。通过如此构成狭缝13b、13c，即使在吐出管13的轴向上，送气气体G也进一步容易流入，并且流出时容易膨胀。In addition, the bottoms of the slits 13b, 13c are formed to be widely opened toward the outer peripheral side. By configuring the slits 13b and 13c in this way, the blown gas G is further facilitated to flow in even in the axial direction of the discharge pipe 13, and is also easily expanded when flowing out.
如图3所示，药液吐出部(吐出管13)以比气体喷出部12f更向远端侧延伸的方式突出。As shown in FIG. 3 , the drug solution discharge portion (discharge tube 13 ) protrudes so as to extend farther than the gas discharge portion 12f.
气体喷出部12f的喷出开口12m相对于与吐出管13的延伸方向正交的虚拟平面以随着在径向上从吐出管13离开而向吐出管13的前端侧突出的方式倾斜地形成。The discharge opening 12m of the gas discharge portion 12f is formed obliquely with respect to a virtual plane perpendicular to the extending direction of the discharge pipe 13 so as to protrude toward the front end side of the discharge pipe 13 as it moves away from the discharge pipe 13 in the radial direction.
换言之，形成有喷出开口12m的面(在本实施方式中为以与送气气体G的喷射方向正交的方式形成的正交面12n)相对于与吐出管13的延伸方向正交的虚拟平面以随着在径向上从吐出管13离开而向吐出管13的前端侧突出的方式倾斜地形成。In other words, the surface on which the discharge opening 12m is formed (orthogonal surface 12n formed so as to be perpendicular to the injection direction of the blown gas G in this embodiment) is relative to the virtual plane perpendicular to the direction in which the discharge pipe 13 extends. It is formed obliquely so as to protrude toward the front end side of the discharge pipe 13 as it moves away from the discharge pipe 13 in the radial direction.
如此，通过正交面12n相对于上述虚拟平面倾斜地形成，喷出开口12m的上端部以与吐出管13的前端开口直径相等的长度程度靠近吐出管13侧。Thus, since the orthogonal surface 12n is formed obliquely with respect to the said virtual plane, the upper end part of the discharge opening 12m approaches the discharge pipe 13 side by the length equivalent to the diameter of the front-end opening of the discharge pipe 13.
根据上述结构，通过气体喷出部12f的喷出开口12m向吐出管13的前端侧突出形成，容易将送气气体G到达吐出管13为止的流速维持为较快。According to the above structure, since the discharge opening 12m of the gas discharge part 12f protrudes toward the front end side of the discharge pipe 13, it is easy to maintain the flow velocity of the blown gas G until it reaches the discharge pipe 13 at a high speed.
另外，本实施方式所涉及的吐出管13与通过主体部2内的未图示的药液流通管为分体，但本发明并不限定于这种结构，也可以一体地形成。In addition, the discharge tube 13 according to the present embodiment is a separate body from the unillustrated liquid medicine circulation tube passing through the main body 2, but the present invention is not limited to such a structure, and may be integrally formed.
并且，只要能够将药液10沿与喷嘴X的轴心方向交叉的方向喷雾即可，作为药液10的吐出方向的吐出管13的延伸方向不一定要与喷嘴X的轴心方向平行。In addition, as long as the chemical solution 10 can be sprayed in a direction intersecting the axial direction of the nozzle X, the extending direction of the discharge tube 13 as the discharge direction of the chemical solution 10 does not have to be parallel to the axial direction of the nozzle X.
[气体喷出部][Gas ejection part]
气体喷出部12f为在头部12的前端部喷出从气体注入部2g填充于主体部2内部的空间2s内的送气气体G的部位。The gas ejection portion 12 f is a portion that ejects the blowing gas G filled in the space 2 s inside the main body portion 2 from the gas injection portion 2 g at the front end portion of the head portion 12 .
本实施方式所涉及的气体喷出部12f为以朝向通过两根吐出管13各自吐出的药液10的吐出处的方式延伸的两个贯通孔。具体而言，气体喷出部12f以与喷嘴X(及吐出管13)的轴心方向交叉的方式朝向远端侧向斜下方延伸。The gas ejection portion 12 f according to the present embodiment is two through holes extending toward the ejection point of the liquid medicine 10 ejected by the two ejection tubes 13 . Specifically, the gas ejection portion 12f extends obliquely downward toward the distal end side so as to intersect with the axial center direction of the nozzle X (and the discharge pipe 13 ).
由于吐出管13及气体喷出部12f各自以这种朝向延伸，因此通过使生物体组织粘合剂涂布用具1围绕喷嘴X的轴心进行旋转，能够对送气气体G的喷出方向进行定向，从而能够调整药液10的喷雾方向。以下，喷出方向是指以气体喷出部12f为基准朝向远端侧的矢量。Since the discharge tube 13 and the gas discharge part 12f each extend in this direction, the discharge direction of the blown gas G can be oriented by rotating the living tissue adhesive application tool 1 around the axis of the nozzle X. , so that the spraying direction of the medicinal solution 10 can be adjusted. Hereinafter, the ejection direction refers to a vector directed toward the distal side with respect to the gas ejection portion 12f.
另外，若无需设为通过生物体组织粘合剂涂布用具1的旋转来调整药液10的喷雾方向的结构，则如上所述，可以为气体喷出部12f与喷嘴X的延伸方向平行地延伸，并且吐出管13沿与气体喷出部12f的延伸方向交叉的方向延伸的结构。In addition, if it is not necessary to adjust the spraying direction of the chemical solution 10 by the rotation of the living tissue adhesive application tool 1, as described above, the gas ejection part 12f may be arranged so that it is parallel to the direction in which the nozzle X extends. It is a structure in which the discharge pipe 13 extends in a direction intersecting the direction in which the gas discharge portion 12f extends.
如图3所示，气体喷出部12f的喷出开口12m形成于与送气气体G的喷射方向正交的面(正交面12n)。As shown in FIG. 3, 12 m of discharge openings of the gas discharge part 12f are formed in the surface (orthogonal surface 12n) orthogonal to the injection direction of the blown gas G.
根据上述结构，容易相对于气体喷出部12f的中心轴对称地在相同的时刻使送气气体G从喷出开口12m喷射，且容易使被送气气体G剪切的同时诱导的药液10均等地喷雾。According to the above-mentioned configuration, it is easy to spray the blown gas G from the blowout opening 12m at the same timing symmetrically with respect to the central axis of the gas blowout portion 12f, and it is easy to uniformly induce the chemical solution 10 while being sheared by the blown gas G. spray.
气体喷出部12f的开口面积小于药液吐出部(吐出管13)的开口面积。The opening area of the gas discharge part 12f is smaller than the opening area of the liquid medicine discharge part (discharge tube 13).
“开口面积”是指形成有开口的平面上的开口的面积。即，气体喷出部12f的开口面积为沿与送气气体G的喷射方向正交的方向延伸的正交面12n上的开口的面积。吐出管13的开口面积为吐出管13的前端面上的开口(除狭缝13b及狭缝13c以外的开口，在本实施方式中为图4所示的圆形部分)的面积。The "opening area" means the area of the opening on the plane where the opening is formed. That is, the opening area of the gas ejection portion 12f is the area of the opening on the orthogonal surface 12n extending in the direction perpendicular to the injection direction of the blown gas G. The opening area of the discharge pipe 13 is the area of the opening on the front end surface of the discharge pipe 13 (openings other than the slit 13b and the slit 13c are circular parts shown in FIG. 4 in this embodiment).
根据上述结构，通过气体喷出部12f的开口面积小于药液吐出部(吐出管13)的开口面积，能够增大送气气体G的压力损失(能量损失)来减小风力，并且提高风速。通过将这种送气气体G喷射供给到药液10，能够促进使药液10成为细雾状。According to the above configuration, since the opening area of the gas discharge part 12f is smaller than that of the liquid medicine discharge part (discharge pipe 13), the pressure loss (energy loss) of the blown gas G can be increased to reduce the wind force and increase the wind speed. By spraying and supplying the gas supply gas G to the chemical solution 10 , it is possible to promote the fine mist form of the chemical solution 10 .
气体喷出部12f的流路直径为0.3mm以上且0.6mm以下。The flow path diameter of the gas ejection part 12f is not less than 0.3 mm and not more than 0.6 mm.
如此，通过气体喷出部12f的流路直径为0.3mm以上且0.6mm以下，能够确保送气气体G的喷出量，并且提高流速，从而能够使被喷射了送气气体G的药液10的粒子变细。In this way, when the flow path diameter of the gas ejection part 12f is not less than 0.3 mm and not more than 0.6 mm, the ejection amount of the air supply gas G can be ensured, and the flow rate can be increased, so that the particles of the chemical solution 10 sprayed with the air supply gas G can Thinning.
[檐部][eaves]
头部12在其前端部隔着气体喷出部12f而还具备檐部12i，该檐部12i设置于与设置有吐出管13的部位相反的一侧的部位。The head portion 12 further includes a eaves portion 12i provided on the opposite side to the portion where the discharge pipe 13 is provided, across the gas ejection portion 12f at the front end thereof.
檐部12i以覆盖气体喷出部12f及吐出管13的前端的方式设置，并且以药液10的吐出方向为基准向比吐出管13的前端更靠远端侧突出而形成。尤其，檐部12i形成为平缓的尖形。The eaves portion 12i is provided to cover the gas ejection portion 12f and the tip of the discharge tube 13, and is formed to protrude farther from the tip of the discharge tube 13 with respect to the discharge direction of the medicinal solution 10. In particular, the eaves portion 12i is formed in a gentle pointed shape.
具体而言，檐部12i以如下方式形成：宽度方向(在本实施方式中为两个吐出管13排列的方向平行的方向)的中央部分向远端侧最大突出，随着朝向宽度方向两侧而从头部主体12b突出的量变小。Specifically, the eaves 12i are formed so that the central portion in the width direction (in this embodiment, a direction parallel to the direction in which the two discharge tubes 13 are arranged) protrudes most toward the distal end side, and On the other hand, the amount of protrusion from the head main body 12b becomes smaller.
更具体而言，檐部12i以吐出管13从头部主体12b突出的长度的2倍以上的长度从头部主体12b突出。More specifically, the eaves portion 12i protrudes from the head main body 12b with a length twice or more the length at which the discharge pipe 13 protrudes from the head main body 12b.
如此形成的檐部12i作为将气体喷出部12f及吐出管13与周围环境隔开的间壁墙发挥功能。因此，檐部12i能够抑制从气体喷出部12f喷出的送气气体G的来自周围环境的影响，从而能够保持药液10的喷雾的整流性。The eaves portion 12i formed in this way functions as a partition wall that separates the gas discharge portion 12f and the discharge pipe 13 from the surrounding environment. Therefore, the eaves 12i can suppress the influence of the surrounding environment on the air supply gas G ejected from the gas ejection portion 12f, and can maintain the regularity of spraying of the chemical solution 10 .
并且，通过檐部12i，能够抑制由于因吐出药液10的吐出管13与器官等接触而附着的体液等，在气体喷出部12f或吐出管13中产生堵塞。进而，通过将檐部12i形成为尖形，容易从头部12向未图示的套管针内插通喷嘴X。Furthermore, the eaves 12i can suppress clogging of the gas ejection part 12f or the discharge pipe 13 due to bodily fluid or the like adhered due to the contact of the discharge pipe 13 which discharges the medicinal solution 10 with an organ or the like. Furthermore, by forming the eaves 12i in a pointed shape, it is easy to insert the nozzle X from the head 12 into a trocar not shown.
＜关于喷雾结果＞＜About spray results＞
接着，主要参考图5及图6对基于本实施方式所涉及的生物体组织粘合剂涂布用具1的药液10的喷雾结果(实施例)和基于以往的未图示的生物体组织粘合剂涂布用具的药液10的喷雾结果(比较例)进行说明。Next, the spray results (example) of the chemical solution 10 by the living tissue adhesive applicator 1 according to the present embodiment and the results of spraying the chemical solution 10 based on the conventional unillustrated living tissue adhesive will be discussed mainly with reference to FIG. 5 and FIG. The spray result (comparative example) of the chemical solution 10 of the mixture applicator will be described.
图5是关于比较例及实施例示出送气气体G的每个空气压力下的风力的图，图6是表示关于比较例及实施例的喷雾药液的粒度的图。FIG. 5 is a graph showing the wind force at each air pressure of the air-supply gas G for the comparative example and the working example, and FIG. 6 is a drawing showing the particle size of the sprayed chemical liquid for the comparative example and the working example.
比较例示出在吐出管中未形成有狭缝且气体喷出部未从头部主体12b突出的未图示的生物体组织粘合剂涂布用具。The comparative example shows a living tissue adhesive applicator (not shown) in which no slit is formed in the discharge tube and the gas discharge portion does not protrude from the head main body 12b.
图5所示的风力为对配置于与气体喷出部12f离开5cm的位置处的测量仪从气体喷出部12f垂直地喷射送气气体G时测量的荷载。The wind force shown in FIG. 5 is a load measured when blowing gas G is vertically injected from the gas ejection portion 12f to a measuring instrument arranged at a position 5 cm away from the gas ejection portion 12f.
将图5的图表所示的详细数值示于表1。Table 1 shows detailed numerical values shown in the graph of FIG. 5 .
[表1][Table 1]
如图5及表1所示，在生物体组织粘合剂涂布用具1所涉及的实施例中，相对于比较例，能够将风力抑制为约0.5倍至约0.6倍左右。As shown in FIG. 5 and Table 1, in the example according to the living tissue adhesive applicator 1, the wind force can be suppressed to about 0.5 to about 0.6 times that of the comparative example.
而且，在图6所示的喷雾试验中，在实施例中，相对于比较例，即使从气体喷出部12f喷射的送气气体G的空气压力低至0.07MPa，也能够将细粒度的药液10涂布于对象面。Moreover, in the spray test shown in FIG. 6 , in the embodiment, compared with the comparative example, even if the air pressure of the air supply gas G injected from the gas ejection part 12f is as low as 0.07 MPa, it is possible to spray the fine-grained chemical solution. 10 Apply to the target surface.
＜变形例＞＜Modifications＞
在上述实施方式中的头部12中，狭缝13b和狭缝13c在吐出管13的轴向上以相同的长度形成，但本发明并不限定于这种结构。In the head portion 12 in the above embodiment, the slit 13b and the slit 13c are formed to have the same length in the axial direction of the discharge pipe 13, but the present invention is not limited to this structure.
接着，主要参考图7对变形例所涉及的头部23进行说明。图7是表示变形例所涉及的头部23的图，是表示通过吐出管23及气体喷出部12f的中心轴的铅垂剖面的喷嘴X的前端部的剖视图。Next, the head portion 23 according to the modified example will be described mainly with reference to FIG. 7 . 7 is a view showing the head portion 23 according to a modified example, and is a cross-sectional view showing the front end portion of the nozzle X in a vertical section passing through the central axis of the discharge pipe 23 and the gas discharge portion 12f.
作为本例所涉及的流出开口部的狭缝23c以比作为流入开口部的狭缝13c短的长度形成，在连结气体喷出部12f的下端和狭缝13c的基端的延长线上设置有狭缝23c的基端部。The slit 23c as the outflow opening according to this example is formed with a shorter length than the slit 13c as the inflow opening, and a slit is provided on an extension line connecting the lower end of the gas ejection portion 12f and the base end of the slit 13c. The base end portion of the slit 23c.
即，狭缝23c形成于从气体喷出部12f喷射并通过狭缝13c的送气气体G的延长线上。That is, the slit 23c is formed on the extension line of the blown gas G injected from the gas ejection part 12f and passing through the slit 13c.
通过如此形成吐出管23，相对于未被剪切的药液10从狭缝23c流出的比例，能够提高被经过狭缝13b的送气气体G剪切的药液10从狭缝23c流出的比例。根据这种结构，能够抑制雾化前的药液10的液滴滴落。By forming the discharge pipe 23 in this way, the ratio of the medicinal solution 10 sheared by the blowing gas G passing through the slit 13b to flow out from the slit 23c can be increased relative to the ratio of the non-sheared medicinal solution 10 to flow out from the slit 23c. According to such a configuration, it is possible to suppress dripping of the liquid medicine 10 before nebulization.
另外，本实施方式所涉及的生物体组织粘合剂涂布用具1具备形成于两根吐出管13各自的药液流通路。In addition, the living tissue adhesive applicator 1 according to the present embodiment includes a drug solution flow path formed in each of the two discharge tubes 13 .
然而，本发明所涉及的生物体用药液注入用具并不限定于这种结构，也可以具备更多的药液流通路，相反地，也可以为一个。同样地，气体喷出部12f也并不限定于两个，也可以设置有更多，相反地，也可以为一个。However, the biological drug solution injector according to the present invention is not limited to this configuration, and may have more drug solution flow channels, or conversely, one. Similarly, the number of gas ejection parts 12f is not limited to two, and may be provided in more numbers, or conversely, may be one.
并且，在上述实施方式中，对将送气气体G从两个气体喷出部12f平行地喷雾的结构进行了说明。即使是这种结构，由于吐出管13的直径小且通过吐出管13的药液10的剖面积充分小，因此也能够将两种药液10适当混合。Moreover, in the said embodiment, the structure which sprayed the blowing gas G in parallel from the two gas ejection parts 12f was demonstrated. Even with such a configuration, since the discharge tube 13 has a small diameter and the cross-sectional area of the drug solution 10 passing through the discharge tube 13 is sufficiently small, the two kinds of drug solutions 10 can be properly mixed.
然而，本发明并不限定于这种结构，也可以为如下结构：为了促进两种药液10的混合，两个气体喷出部12f在相互交叉的方向上延伸，以使从两个气体喷出部12f喷射的送气气体G的喷射处相交。在该情况下，只要在送气气体的喷射处具有吐出管13及形成于吐出管13的流入开口部及流出开口部即可。However, the present invention is not limited to this configuration, and may be a configuration in which two gas jets 12f extend in directions intersecting each other in order to promote the mixing of the two kinds of chemical solutions 10 so that the gas jets from the two gas jets The injection points of the blown gas G injected from the outlet portion 12f intersect. In this case, what is necessary is just to have the discharge pipe 13 and the inflow opening part and the outflow opening part formed in the discharge pipe 13 at the injecting place of the blowing gas.
上述实施方式包含以下的技术思想。The above-described embodiments include the following technical ideas.
(1)(1)
一种生物体用药液注入用具，其特征在于，具备：A tool for injecting medicinal liquid for living organisms, characterized in that it has:
主体部；及the main body; and
喷嘴，从该主体部延伸，a nozzle extending from the body portion,
该喷嘴具备：This nozzle has:
管状的药液吐出部，设置于所述喷嘴的前端部并位于吐出内部空间中的药液；及a tubular liquid medicine discharge part, which is provided at the front end of the nozzle and is positioned to discharge the liquid medicine in the internal space; and
气体喷出部，位于该药液吐出部的附近，通过对从所述药液吐出部吐出的所述药液喷射气体而使所述药液以雾状喷雾，a gas ejection unit located in the vicinity of the medicinal solution ejection unit, spraying gas to the medicinal liquid ejected from the medicinal liquid ejection unit to spray the medicinal liquid in mist form,
在所述药液吐出部的周壁上，在所述气体喷出部侧形成有流入开口部，在与所述气体喷出部侧相反的一侧形成有流出开口部，An inflow opening is formed on the side of the gas ejection portion, and an outflow opening is formed on a side opposite to the gas ejection portion on the peripheral wall of the liquid medicine ejection portion,
所述气体喷出部向与从所述药液吐出部吐出的所述药液的吐出方向交叉的方向喷射所述气体，The gas ejection unit injects the gas in a direction intersecting with a discharge direction of the chemical liquid ejected from the chemical liquid ejection portion,
所述流入开口部及所述流出开口部形成于通过所述气体喷出部喷射的所述气体的喷射方向的延长线上。The inflow opening and the outflow opening are formed on an extension line of an injection direction of the gas injected from the gas ejection part.
(2)(2)
根据(1)所述的生物体用药液注入用具，其中，The biological drug solution injector according to (1), wherein
在所述药液吐出部，在比所述流入开口部及所述流出开口部更靠近端侧形成有绕整周形成的环绕部。A surrounding portion formed around the entire circumference of the medicinal solution discharge portion is formed on the end side of the inflow opening and the outflow opening.
(3)(3)
根据(1)或(2)所述的生物体用药液注入用具，其中，The biological drug solution injector according to (1) or (2), wherein
所述流入开口部的外周侧的开口宽度比内周侧的开口宽度宽。The opening width on the outer peripheral side of the inflow opening is wider than the opening width on the inner peripheral side.
(4)(4)
根据(3)所述的生物体用药液注入用具，其中，The biological drug solution injector according to (3), wherein
所述流入开口部的所述外周侧的所述开口宽度比所述气体喷出部的流路直径宽。The opening width on the outer peripheral side of the inflow opening is wider than the flow path diameter of the gas ejection portion.
(5)(5)
根据(3)或(4)所述的生物体用药液注入用具，其中，The biological drug solution injector according to (3) or (4), wherein
所述流入开口部的所述内周侧的所述开口宽度比所述气体喷出部的流路直径窄。The opening width of the inner peripheral side of the inflow opening is narrower than the flow path diameter of the gas ejection portion.
(6)(6)
根据(1)至(5)中任一项所述的生物体用药液注入用具，其中，The biological drug liquid injection tool according to any one of (1) to (5), wherein
所述流出开口部的外周侧的开口宽度比内周侧的开口宽度宽。The outlet opening has an opening width wider on the outer peripheral side than on the inner peripheral side.
(7)(7)
根据(1)至(6)中任一项所述的生物体用药液注入用具，其中，The biological drug liquid injection tool according to any one of (1) to (6), wherein
所述流入开口部和所述流出开口部中的至少任一个形成为狭缝状且形成为在所述药液吐出部的延伸方向上长。At least one of the inflow opening and the outflow opening is formed in a slit shape and is formed to be long in a direction in which the medical solution discharge part extends.
(8)(8)
根据(1)至(7)中任一项所述的生物体用药液注入用具，其中，The biological drug liquid injection tool according to any one of (1) to (7), wherein
所述气体喷出部的开口面积小于所述药液吐出部的开口面积。The opening area of the gas discharge part is smaller than the opening area of the liquid medicine discharge part.
(9)(9)
根据(1)至(8)中任一项所述的生物体用药液注入用具，其中，The biological drug liquid injection tool according to any one of (1) to (8), wherein
所述药液吐出部比所述气体喷出部更向远端侧延伸并突出，The liquid medicine ejection part extends and protrudes farther than the gas ejection part,
所述气体喷出部的喷出开口相对于与所述药液吐出部的延伸方向正交的虚拟平面以随着从所述药液吐出部离开而向所述药液吐出部的前端侧突出的方式倾斜地形成。The discharge opening of the gas discharge unit protrudes toward the front end side of the chemical solution discharge unit as it moves away from the chemical solution discharge unit with respect to a virtual plane perpendicular to the extending direction of the chemical solution discharge unit. formed obliquely.
(10)(10)
根据(9)所述的生物体用药液注入用具，其中，The biological drug solution injector according to (9), wherein
所述喷出开口形成于与所述气体的喷射方向正交的面。The ejection opening is formed on a surface perpendicular to the ejection direction of the gas.
(11)(11)
根据(1)至(10)中任一项所述的生物体用药液注入用具，其中，The biological drug liquid injection tool according to any one of (1) to (10), wherein
所述气体喷出部的流路直径为0.3mm以上且0.6mm以下。The flow path diameter of the gas ejection part is not less than 0.3 mm and not more than 0.6 mm.
产业上的可利用性Industrial availability
根据本发明，可提供一种能够使药液更加细粒化而喷雾到体腔内的生物体用药液注入用具。According to the present invention, it is possible to provide a device for injecting a drug solution for a living body, which can finely granulate the drug solution and spray it into a body cavity.
附图标记的说明Explanation of reference signs
1-生物体组织粘合剂涂布用具(生物体用药液注入用具)，2-主体部，2d-注射器安装口，2g-气体注入部，2s-空间，7-柱塞，8-柱塞保持件，9-空气过滤器，9a-连接口，10-药液，11-延长部，12-头部(前端部)，12b-头部主体，12f-气体喷出部，12h-嵌合部，12i-檐部，12m-喷出开口，12n-正交面，13-吐出管(药液吐出部)，13a-周壁，13b-狭缝(流入开口部)，13c-狭缝(流出开口部)，13d-环绕部，17-注射器，22-头部(前端部)，23-吐出管，23c-狭缝(流出开口部)，30-调节器，31-送气软管，31a、31b-连接器，G-送气气体(气体)，X-喷嘴。1-Biological tissue adhesive application tool (biological drug solution injection tool), 2-Main body, 2d-Syringe installation port, 2g-Gas injection part, 2s-Space, 7-Plunger, 8-Pillar Plug holder, 9-air filter, 9a-connection port, 10-chemical solution, 11-extended part, 12-head (front end), 12b-head main body, 12f-gas ejection part, 12h-embedded Joint, 12i-eaves, 12m-spray opening, 12n-orthogonal surface, 13-discharge pipe (medicine liquid discharge part), 13a-surrounding wall, 13b-slit (inflow opening), 13c-slit ( outflow opening), 13d-surrounding part, 17-syringe, 22-head (front end), 23-discharge tube, 23c-slit (outflow opening), 30-regulator, 31-air supply hose, 31a , 31b-connector, G-supply gas (gas), X-nozzle.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020206503AJP7571514B2 (en) | 2020-12-14 | 2020-12-14 | Medical fluid injection equipment for living organisms |
| JP2020-206503 | 2020-12-14 | ||
| PCT/JP2021/046042WO2022131249A1 (en) | 2020-12-14 | 2021-12-14 | Medicinal liquid injection device for living body |
| Publication Number | Publication Date |
|---|---|
| CN116600903Atrue CN116600903A (en) | 2023-08-15 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180083573.3APendingCN116600903A (en) | 2020-12-14 | 2021-12-14 | Liquid injection tool for living body |
| Country | Link |
|---|---|
| JP (1) | JP7571514B2 (en) |
| CN (1) | CN116600903A (en) |
| WO (1) | WO2022131249A1 (en) |
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| JP2018201727A (en)* | 2017-05-31 | 2018-12-27 | 住友ベークライト株式会社 | Biomedical injection device |
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| CN103347617A (en)* | 2011-04-04 | 2013-10-09 | 喷嘴网络株式会社 | Liquid atomization device |
| JP2018201727A (en)* | 2017-05-31 | 2018-12-27 | 住友ベークライト株式会社 | Biomedical injection device |
| US20190321554A1 (en)* | 2018-04-19 | 2019-10-24 | Ethicon, Inc. | Adapter manifold for multi-barrel syringe applicator |
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| Publication number | Publication date |
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| JP7571514B2 (en) | 2024-10-23 |
| JP2022093815A (en) | 2022-06-24 |
| WO2022131249A1 (en) | 2022-06-23 |
| TW202228602A (en) | 2022-08-01 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
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