CN112618948B - A connection structure for sealing and locking a Luer connector and a catheter - Google Patents
A connection structure for sealing and locking a Luer connector and a catheter Download PDFInfo
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- CN112618948B CN112618948B CN202011615967.2A CN202011615967A CN112618948B CN 112618948 B CN112618948 B CN 112618948B CN 202011615967 A CN202011615967 A CN 202011615967A CN 112618948 B CN112618948 B CN 112618948B
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- 238000007789 sealing Methods 0.000 title claims abstract description 64
- 238000009434 installation Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 1
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000000244 kidney pelvis Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/14—Tube connectors; Tube couplings for connecting tubes having sealed ends
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1033—Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1038—Union screw connectors, e.g. hollow screw or sleeve having external threads
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
本发明公开了一种鲁尔接头与导管密封锁定的连接结构，包括鲁尔接头和导管，鲁尔接头内开设有轴孔，轴孔内同轴固定有限位环，鲁尔接头与导管之间通过密封锁紧装置同轴固定，鲁尔接头的轴孔内同轴设置有密封环和弹性套，限位环的内侧环面与密封环的一侧端面同轴贴合，密封环的另一侧端面与弹性套的一端端面同轴贴合，导管的一端同轴插入弹性套和密封环、位于限位环的环孔内，密封锁紧装置包括用于同轴抵推弹性套的另一端端面、使密封环的内孔收缩夹紧导管的抵推件和用于将鲁尔接头与抵推件同轴固定的锁紧件。通过同轴挤压弹性套和密封环，使密封环夹紧导管，满足了防漏要求，确保了一定压力的液体和气体输送的密封性。
The invention discloses a connection structure for sealing and locking a Luer connector and a catheter, comprising a Luer connector and a catheter, wherein an axial hole is provided in the Luer connector, a limiting ring is coaxially fixed in the axial hole, the Luer connector and the catheter are coaxially fixed through a sealing locking device, a sealing ring and an elastic sleeve are coaxially arranged in the axial hole of the Luer connector, the inner ring surface of the limiting ring is coaxially fitted with one end surface of the sealing ring, the other end surface of the sealing ring is coaxially fitted with one end surface of the elastic sleeve, one end of the catheter is coaxially inserted into the elastic sleeve and the sealing ring and is located in the ring hole of the limiting ring, and the sealing locking device comprises a pushing piece for coaxially pushing the other end surface of the elastic sleeve and making the inner hole of the sealing ring contract and clamp the catheter, and a locking piece for coaxially fixing the Luer connector and the pushing piece. By coaxially squeezing the elastic sleeve and the sealing ring, the sealing ring clamps the catheter, thereby meeting the leakage-proof requirement and ensuring the sealing performance of liquid and gas transmission at a certain pressure.
Description
技术领域Technical Field
本发明涉及医用器械连接装置技术领域，具体地指一种鲁尔接头与导管密封锁定的连接结构。The invention relates to the technical field of medical instrument connection devices, and in particular to a sealing and locking connection structure of a Luer connector and a catheter.
背景技术Background Art
近年来，由于微创手术的创口小、手术恢复快，目前普遍用于鼻咽腔治疗、肾盂排石等治疗领域，微创手术中，对各种医用导管之间的连接具有一定的密封防漏及位置锁定的要求，需要确保一定压力的液体和气体输送导管之间、导管与医疗器械轴之间的可靠的密封连接，能堵塞封闭导管孔口，不会引起流体的泄漏，同时能有效锁定连接导管或轴的位置，确保使用中不会产生位置的滑移或改变。In recent years, due to the small incision and fast recovery of minimally invasive surgery, it is now widely used in treatment areas such as nasopharyngeal cavity treatment and renal pelvis stone removal. In minimally invasive surgery, the connection between various medical catheters has certain requirements for sealing, leak prevention and position locking. It is necessary to ensure reliable sealing connections between liquid and gas delivery catheters of a certain pressure, and between catheters and medical device shafts. It is necessary to block and seal the catheter orifices without causing fluid leakage. At the same time, it can effectively lock the position of the connected catheter or shaft to ensure that there is no slippage or change in position during use.
发明内容Summary of the invention
本发明的目的就是要解决上述背景技术的不足，提供一种密封性好、可靠性高的鲁尔接头与导管密封锁定的连接结构。The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology and provide a connection structure of a Luer connector and a catheter with good sealing performance and high reliability.
为实现此目的，本发明所设计的鲁尔接头与导管密封锁定的连接结构，包括鲁尔接头和导管，其特征在于：所述鲁尔接头内开设有轴孔，所述轴孔内同轴固定有限位环，所述鲁尔接头与所述导管之间通过密封锁紧装置同轴固定，所述鲁尔接头的轴孔内同轴设置有密封环和弹性套，所述限位环的内侧环面与所述密封环的一侧端面同轴贴合，所述密封环的另一侧端面与所述弹性套的一端端面同轴贴合，所述导管的一端同轴插入所述弹性套和所述密封环、位于所述限位环的环孔内，所述密封锁紧装置包括用于同轴抵推所述弹性套的另一端端面、使所述密封环的内孔收缩夹紧所述导管的抵推件和用于将所述鲁尔接头与所述抵推件同轴固定的锁紧件。To achieve this object, the sealing and locking connection structure of a Luer connector and a catheter designed in the present invention comprises a Luer connector and a catheter, and is characterized in that: an axial hole is provided in the Luer connector, a limiting ring is coaxially fixed in the axial hole, the Luer connector and the catheter are coaxially fixed via a sealing and locking device, a sealing ring and an elastic sleeve are coaxially arranged in the axial hole of the Luer connector, the inner ring surface of the limiting ring is coaxially fitted with one end surface of the sealing ring, the other end surface of the sealing ring is coaxially fitted with one end surface of the elastic sleeve, one end of the catheter is coaxially inserted into the elastic sleeve and the sealing ring and is located in the ring hole of the limiting ring, and the sealing and locking device comprises a pushing member for coaxially pushing the other end surface of the elastic sleeve to shrink the inner hole of the sealing ring to clamp the catheter, and a locking member for coaxially fixing the Luer connector and the pushing member.
进一步的，所述鲁尔接头包括具有轴孔的接头帽和连接于所述接头帽的外侧端面、与所述接头帽的轴孔同轴连通且具有内螺纹或外螺纹的接头套筒，所述接头帽的内侧端面上同轴固定有所述限位环，所述限位环的内侧环面上同轴固定有安装套筒，所述密封环和所述弹性套均同轴设置于所述安装套筒内。Furthermore, the Luer connector includes a connector cap having an axial hole and a connector sleeve connected to the outer end surface of the connector cap, coaxially connected to the axial hole of the connector cap and having an internal thread or an external thread, the limiting ring is coaxially fixed on the inner end surface of the connector cap, the mounting sleeve is coaxially fixed on the inner ring surface of the limiting ring, and the sealing ring and the elastic sleeve are coaxially arranged in the mounting sleeve.
进一步的，所述抵推件为密封螺母，所述密封螺母包括具有内螺纹的螺母帽，所述螺母帽的内侧端面上同轴连接有轴向抵推套筒8，所述导管的一端同轴插入所述轴向抵推套筒，所述轴向抵推套筒8的前端面与所述弹性套的另一端端面同轴贴合压紧。Furthermore, the push member is a sealing nut, which includes a nut cap with an internal thread, an axial push sleeve 8 is coaxially connected to the inner end face of the nut cap, one end of the catheter is coaxially inserted into the axial push sleeve, and the front end face of the axial push sleeve 8 is coaxially fitted and pressed with the other end face of the elastic sleeve.
进一步的，所述接头帽的内表面与所述安装套筒的外表面之间的间隙为定位环槽，所述锁紧件包括同轴设置于所述定位环槽内的定位环。Furthermore, the gap between the inner surface of the joint cap and the outer surface of the mounting sleeve is a positioning ring groove, and the locking member includes a positioning ring coaxially arranged in the positioning ring groove.
进一步的，所述安装套筒包括同轴连接于所述限位环的内侧环面上的密封环定位套筒和间隔连接于所述密封环定位套筒远离所述限位环一侧的周向端面上的多块圆弧形板，所述圆弧形板的表面设有外螺纹，所述锁紧件包括与多块所述圆弧形板螺纹连接的锁紧螺母，所述锁紧螺母的一侧端面同轴连接所述定位环。Furthermore, the mounting sleeve includes a sealing ring positioning sleeve coaxially connected to the inner ring surface of the limiting ring and a plurality of arc-shaped plates spaced apart from each other on the circumferential end surface of the sealing ring positioning sleeve away from the limiting ring, the surface of the arc-shaped plate being provided with an external thread, the locking member includes a locking nut threadedly connected to the plurality of arc-shaped plates, and one side end surface of the locking nut is coaxially connected to the positioning ring.
进一步的，所述锁紧螺母的另一端端面同轴连接有具有外螺纹的螺纹套筒，所述螺纹套筒螺纹连接于所述螺母帽内。Furthermore, the other end surface of the locking nut is coaxially connected to a threaded sleeve having external threads, and the threaded sleeve is threadedly connected in the nut cap.
更进一步的，所述弹性套的侧部开设有与所述弹性套的内部轴孔连通、沿所述弹性套的长度方向设置的轴向缺口。Furthermore, an axial notch is provided on the side of the elastic sleeve and is communicated with the internal axial hole of the elastic sleeve and is arranged along the length direction of the elastic sleeve.
本发明的有益效果是：通过同轴挤压弹性套和密封环，使密封环夹紧导管，再将鲁尔接头与导管通过密封锁紧装置连接，有效保证了鲁尔接头与导管之间的密封连接，满足了防漏要求，确保了一定压力的液体和气体输送的密封性，确保了使用过程中导管与鲁尔接头的连接稳定。The beneficial effects of the present invention are as follows: by coaxially extruding the elastic sleeve and the sealing ring, the sealing ring clamps the catheter, and then the Luer connector and the catheter are connected through a sealing locking device, thereby effectively ensuring a sealed connection between the Luer connector and the catheter, meeting the leakage-proof requirements, ensuring the sealing of liquid and gas delivery at a certain pressure, and ensuring a stable connection between the catheter and the Luer connector during use.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明中内鲁尔接头与导管密封锁定的连接结构的立体图；FIG1 is a perspective view of a connection structure of a female Luer connector and a catheter sealed and locked in the present invention;
图2为本发明中内鲁尔接头与导管密封锁定的连接结构的主视图；FIG2 is a front view of the connection structure of the inner Luer connector and the catheter sealed and locked in the present invention;
图3为图2中A—A剖视图；Fig. 3 is a cross-sectional view of A-A in Fig. 2;
图4为本发明中外鲁尔接头与导管密封锁定的连接结构的立体图；FIG4 is a perspective view of the connection structure of the external Luer connector and the catheter sealed and locked in the present invention;
图5为本发明中外鲁尔接头与导管密封锁定的连接结构的主视图；FIG5 is a front view of the connection structure of the external Luer connector and the catheter sealed and locked in the present invention;
图6为图5中B—B剖视图；Fig. 6 is a sectional view of B-B in Fig. 5;
图7为本发明中内鲁尔接头的立体图；FIG7 is a perspective view of a female Luer connector according to the present invention;
图8为本发明中内鲁尔接头的主视图；FIG8 is a front view of the inner Luer connector of the present invention;
图9为图8中C—C剖视图；FIG9 is a cross-sectional view of FIG8 C-C;
图10为本发明中外鲁尔接头的立体图；FIG10 is a perspective view of the external Luer connector of the present invention;
图11为本发明中外鲁尔接头的主视图；FIG11 is a front view of the male and female Luer connector of the present invention;
图12为图11中D—D剖视图；FIG12 is a cross-sectional view of FIG11 , D-D;
图13为本发明中锁紧件的立体图；FIG13 is a perspective view of a locking member in the present invention;
图14为本发明中锁紧件的主视图；FIG14 is a front view of the locking member of the present invention;
图15为图14中E—E剖视图；FIG15 is a cross-sectional view of FIG14 , EE;
图16为本发明中抵推件的立体图；FIG16 is a perspective view of the push member of the present invention;
图17为本发明中抵推件的立主视图；FIG17 is a front elevation view of the push member of the present invention;
图18为图17中F—F剖视图；FIG18 is a cross-sectional view of FIG17 from F to F;
图19为本发明中密封环的立体图；FIG19 is a perspective view of a sealing ring in the present invention;
图20为本发明中弹性套的立体图；FIG20 is a perspective view of the elastic sleeve of the present invention;
其中，1—导管，2—密封环，3—弹性套，4—限位环，5—接头帽，6—接头套筒，7—螺母帽，8—轴向抵推套筒，9—定位环槽，10—定位环，11—密封环定位套筒，12—圆弧形板，13—锁紧螺母，14—螺纹套筒，15—轴向缺口，16—内鲁尔接头，17—外鲁尔接头，18—抵推件，19—锁紧件。Among them, 1 is a catheter, 2 is a sealing ring, 3 is an elastic sleeve, 4 is a limiting ring, 5 is a connector cap, 6 is a connector sleeve, 7 is a nut cap, 8 is an axial push sleeve, 9 is a positioning ring groove, 10 is a positioning ring, 11 is a sealing ring positioning sleeve, 12 is an arc plate, 13 is a locking nut, 14 is a threaded sleeve, 15 is an axial notch, 16 is an inner Luer connector, 17 is an outer Luer connector, 18 is a push piece, and 19 is a locking piece.
具体实施方式DETAILED DESCRIPTION
下面结合附图和具体实施例对本发明作进一步的详细说明。The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
如图1—20所示的鲁尔接头与导管密封锁定的连接结构，包括鲁尔接头(内鲁尔接头16或外鲁尔接头17)和导管1，鲁尔接头与导管1之间通过密封锁紧装置同轴固定。The sealing and locking connection structure of the Luer connector and the catheter as shown in Figures 1-20 includes a Luer connector (an internal Luer connector 16 or an external Luer connector 17) and a catheter 1, and the Luer connector and the catheter 1 are coaxially fixed by a sealing locking device.
鲁尔接头包括具有轴孔的接头帽5和连接于接头帽5的外侧端面、与接头帽5的轴孔同轴连通且具有内螺纹或外螺纹的接头套筒6，接头帽5的内侧端面上同轴连接固定有限位环4，限位环4的内侧环面上同轴固定连接有安装套筒，安装套筒包括同轴连接于限位环4内侧环面上的密封环定位套筒11和间隔连接于密封环定位套筒11远离限位环4的一侧的周向端面上的多块圆弧形板12，圆弧形板12的表面设有外螺纹。密封环2和弹性套3均同轴设置于安装套筒内，导管1的一端同轴插入弹性套3和密封环2，位于限位环4的环孔内。The Luer connector includes a connector cap 5 with an axial hole and a connector sleeve 6 connected to the outer end face of the connector cap 5, coaxially connected to the axial hole of the connector cap 5 and having an internal thread or an external thread. The inner end face of the connector cap 5 is coaxially connected and fixed with a limit ring 4, and the inner ring surface of the limit ring 4 is coaxially fixedly connected with a mounting sleeve. The mounting sleeve includes a sealing ring positioning sleeve 11 coaxially connected to the inner ring surface of the limit ring 4 and a plurality of arc-shaped plates 12 connected at intervals to the circumferential end face of the sealing ring positioning sleeve 11 away from the limit ring 4, and the surface of the arc-shaped plate 12 is provided with an external thread. The sealing ring 2 and the elastic sleeve 3 are both coaxially arranged in the mounting sleeve, and one end of the catheter 1 is coaxially inserted into the elastic sleeve 3 and the sealing ring 2, and is located in the ring hole of the limit ring 4.
密封锁紧装置包括抵推件18和用于将鲁尔接头与抵推件18同轴固定的锁紧件19。抵推件18为密封螺母，包括具有内螺纹的螺母帽7，螺母帽7的内侧端面上同轴连接有轴向抵推套筒8，导管1的一端同轴插入轴孔和轴向抵推套筒8，轴向抵推套筒8的前端面与弹性套3的另一端端面同轴贴合压紧。接头帽5的内表面与安装套筒的外表面之间的间隙为定位环槽9，锁紧件19包括同轴设置于定位环槽9内的定位环10和与多块圆弧形板12螺纹连接的锁紧螺母13，锁紧螺母13的一侧端面同轴连接定位环10，锁紧螺母13的另一端端面同轴连接有具有外螺纹的螺纹套筒14，螺纹套筒14螺纹连接于螺母帽7内。The sealing locking device includes a push piece 18 and a locking piece 19 for coaxially fixing the Luer connector and the push piece 18. The push piece 18 is a sealing nut, including a nut cap 7 with internal threads, an axial push sleeve 8 is coaxially connected to the inner end face of the nut cap 7, one end of the catheter 1 is coaxially inserted into the axial hole and the axial push sleeve 8, and the front end face of the axial push sleeve 8 is coaxially fitted and pressed with the other end face of the elastic sleeve 3. The gap between the inner surface of the connector cap 5 and the outer surface of the mounting sleeve is a positioning ring groove 9, and the locking piece 19 includes a positioning ring 10 coaxially arranged in the positioning ring groove 9 and a locking nut 13 threadedly connected to a plurality of arc-shaped plates 12, one end face of the locking nut 13 is coaxially connected to the positioning ring 10, and the other end face of the locking nut 13 is coaxially connected to a threaded sleeve 14 with external threads, and the threaded sleeve 14 is threadedly connected to the nut cap 7.
本发明中，在只需要密封或对导管1进行轻微的夹紧操作时，可以将导管1塞入密封环2和弹性套3的中心孔内，一手捏住锁紧螺母13，一手旋紧密封螺母即可。在需要牢固可靠锁定导管1时，先对锁紧螺母13进行初步旋紧，再旋紧密封螺母对密封环2进行压缩，然后旋紧锁紧螺母13固定导管1的位置。在不需要密封的场合可以直接旋紧锁紧螺母13固定导管1的位置。In the present invention, when only sealing or slight clamping operation is required on the catheter 1, the catheter 1 can be inserted into the central hole of the sealing ring 2 and the elastic sleeve 3, and the locking nut 13 can be pinched with one hand and the sealing nut can be tightened with the other hand. When the catheter 1 needs to be firmly and reliably locked, the locking nut 13 is first tightened preliminarily, and then the sealing nut is tightened to compress the sealing ring 2, and then the locking nut 13 is tightened to fix the position of the catheter 1. In the case where sealing is not required, the locking nut 13 can be directly tightened to fix the position of the catheter 1.
以上所述，仅是本发明的较佳实施例而已，并非对本发明的结构做任何形式上的限制。凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明的技术方案的范围内。The above is only a preferred embodiment of the present invention, and does not limit the structure of the present invention in any form. Any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still falls within the scope of the technical solution of the present invention.
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| CN114159673B (en) * | 2021-12-08 | 2023-11-07 | 上海神玑医疗科技有限公司 | Vascular catheter interventional device |
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| US6394983B1 (en) * | 1998-10-28 | 2002-05-28 | Abbott Laboratories | Cap and luer connector for a fluid transfer device |
| US7025389B2 (en) * | 2003-06-06 | 2006-04-11 | Baxter International Inc. | Method and device for transferring fluid |
| US7998134B2 (en) * | 2007-05-16 | 2011-08-16 | Icu Medical, Inc. | Medical connector |
| US20080312640A1 (en) * | 2007-06-14 | 2008-12-18 | Sabin Corporation | Modified luer fittings for feeding tube adapter |
| EP3524299B1 (en) * | 2009-07-15 | 2022-06-22 | Becton, Dickinson and Company | Injection device with sealed luer fitting |
| CN202637706U (en) * | 2012-07-13 | 2013-01-02 | 山东大正医疗器械股份有限公司 | Internal-inserting type guide-pipe connecting component |
| CN204395219U (en) * | 2014-12-31 | 2015-06-17 | 郑州迪奥医学技术有限公司 | Do not reduce the luer lock joint of flow |
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