WO2021077537A1 - 应用于气道产品的喷嘴式给药装置 - Google Patents
应用于气道产品的喷嘴式给药装置 Download PDFInfo
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- WO2021077537A1 WO2021077537A1 PCT/CN2019/121479 CN2019121479W WO2021077537A1 WO 2021077537 A1 WO2021077537 A1 WO 2021077537A1 CN 2019121479 W CN2019121479 W CN 2019121479W WO 2021077537 A1 WO2021077537 A1 WO 2021077537A1
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- upper cover
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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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
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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
- A61M19/00—Local anaesthesia; Hypothermia
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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
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
Definitions
- the invention belongs to the field of medical equipment, and in particular relates to a nozzle type drug delivery device applied to airway products.
- the most common airway products are tracheal intubation; tracheotomy; laryngeal mask; nasopharyngeal tube; bronchial intubation and so on.
- the establishment of artificial breathing channels through the operation of airway products is the most effective, mature, and most commonly used technical means for first aid, patient rescue, and nursing.
- this type of surgery is more irritating to the patient when the catheter is inserted or pulled out, and often causes severe stress response in the patient.
- the method of applying local anesthetic drugs on the surface of the catheter before insertion reduces the irritation to the patient.
- the local anesthetic drug cannot be applied again after the catheter is inserted, and the efficacy of the local anesthetic drug applied in advance will gradually disappear.
- the catheter When the catheter is extubated, the strong stimulation will cause the patient's severe stress response, which may endanger the patient's safety in severe cases.
- the intraoperative need to give certain patients a specific drug, such as vasoactive drugs, antibiotics, sedatives, etc. is also an urgent clinical problem that needs to be resolved. Therefore, in the airway products, the drug delivery structure that can realize the timely sedation and treatment of patients during surgery and before extubation has attracted more and more attention from medical workers and the medical device industry.
- the purpose of the present invention is to provide a nozzle type drug delivery device applied to airway products.
- a nozzle type drug delivery device applied to airway products comprising an upper cover and a lower cover; the upper cover includes a spray upper cover at the top end and a straight upper cover provided at the bottom end; the spray upper cover is provided at the top end There are nozzle holes, arc-shaped channels are formed inside the spraying upper cover; medicine outlet grooves are provided on both sides of the arc-shaped channels;
- the flat bottom cover is provided with a protrusion above; the flat bottom cover is provided with a medicine outlet hole; the flat upper cover is provided with a groove matching the protrusion; the groove and the There is a gap between the protrusions to form a diversion groove; the medicine outlet hole, the diversion groove, the medicine outlet groove, the arc-shaped channel and the nozzle hole are connected in sequence to form a drug delivery channel.
- the medicine outlet groove is an arc-shaped groove; the entrance of the medicine outlet groove matches with the arc-shaped channel to form a vortex.
- the medicine outlet grooves are two symmetrically arranged.
- the cross section of the arc-shaped channel is a trapezoid; the angle between the waistline of the trapezoid and the axis is ⁇ , 0° ⁇ 90°.
- the cross section of the arc-shaped channel is an isosceles trapezoid.
- the outer side of the straight upper cover is connected with installation convex points.
- the included angle between the outer side surface of the mounting bump and the connecting surface is ⁇ , 0° ⁇ 50°; the connecting surface is the contact surface between the mounting bump and the flat upper cover.
- the cross-section of the nozzle hole can be one of square, rectangular, circular, elliptical or special shape; preferably, it is circular, with a diameter of 0.05mm-3mm.
- the upper cover and the lower cover are integrally formed or connected separately; the connection mode of the upper cover and the lower cover during the split connection is bonding, tight fitting or welding.
- Positioning ribs are arranged on both sides of the protrusion; the groove is provided with curved grooves matching the positioning ribs.
- the invention is simple in structure and convenient to use, supports accurate drug delivery to the patient's trachea during operation and before extubation, and reduces the patient's pain.
- the nozzle can adjust the position according to the position and depth of the intubation, and inject local drugs into the patient as needed, increase the patient's tolerance to the tracheal tube, and reduce the adverse reaction of the tracheal tube to the patient's respiratory tract stimulation; it can also be used to inject physiological Salt water or disinfected water is conducive to throat cleaning care.
- the nozzle can form a diversified medicinal liquid surface, the dosage is uniform and it is conducive to the diffusion and infiltration of the medicinal liquid, avoiding irritating cough reflex to the patient, and will not cause paralysis of the glottis muscles.
- Figure 1 is a schematic diagram of the overall structure of a nozzle-type drug delivery device applied to airway products according to the present invention
- FIG. 2 is a schematic diagram of the upper cover structure of the nozzle-type drug delivery device applied to airway products according to the present invention
- FIG. 3 is a schematic diagram of the lower cover structure of the nozzle-type drug delivery device applied to airway products according to the present invention
- FIG. 4 is a schematic diagram of the formation of a vortex flow in the medicine outlet groove of the nozzle-type drug delivery device applied to airway products of the present invention
- Figure 5 is a partial view of a cross-section of a nozzle-type drug delivery device applied to airway products according to the present invention
- Figures 6-9 are schematic diagrams of the nozzle-type drug delivery device applied to airway products in the tracheal intubation, tracheostomy intubation, double-lumen bronchial intubation, and nasopharyngeal tube, respectively.
- Figures 1-5 show a nozzle type drug delivery device applied to airway products, including an upper cover 1 and a lower cover 2; the upper and lower covers are made of medical polymer materials; the upper The cover includes a spray upper cover 11 at the top end and a straight upper cover 12 provided at the bottom end; the spray upper cover is provided with a nozzle hole 14 at the top end, and an arc-shaped channel 15 is formed inside the spray upper cover;
- the cover includes a straight lower cover 21 provided at the bottom end and a protrusion 22 provided above the straight lower cover; the inside of the straight lower cover is provided with a medicine outlet hole 24; the straight upper cover is provided There are grooves that are matched and positioned with the protrusions; there is a gap between the grooves and the protrusions to form the diversion groove 3; the medicine outlet hole 24, the diversion groove 3, and the arc-shaped channel 15 and the nozzle hole 14 are sequentially connected to form a drug delivery channel.
- Medicine outlet grooves 13 are provided on both sides of the arc-shaped channel; the medicine outlet groove is communicated with the arc-shaped channel and the diversion groove respectively.
- the medicine outlet groove is an arc-shaped groove; the entrance of the medicine outlet groove matches the arc-shaped channel to form a vortex (as shown in FIG. 4).
- the medicine outlet grooves are two symmetrically arranged A.
- the cross section of the arc-shaped channel is a trapezoid with a narrow upper side and a wide lower side, preferably an isosceles trapezoid; the angle between the waistline of the trapezoid and the axis is ⁇ , 0° ⁇ 90°.
- Two sides of the protrusion are provided with positioning ribs 23; the ground groove is provided with a curved groove 17 matching the ground positioning ribs.
- Mounting bumps 13 are connected to the outside of the straight upper cover.
- the included angle between the outer side surface of the mounting protrusion and the connecting surface is ⁇ , 0° ⁇ 50°; the connecting surface is the contact surface between the mounting protrusion and the flat upper cover.
- the cross-section of the nozzle hole can be one of square, rectangular, circular, elliptical or special shape; preferably, it is circular and has a diameter of 0.05mm-3mm.
- the upper cover and the lower cover are integrally formed or connected separately; the connection mode of the upper cover and the lower cover during the split connection is bonding, tight fitting or welding.
- the nozzle-type drug delivery device applied to airway products of the present application is used in conjunction with airway products, and can be designed to be fixed in the tube wall of the airway product by bonding, tight fitting, or welding, or it can be designed as an independent device connection
- the matched airway products inject the liquid medicine from the medicine outlet hole of the lower cover, flow through the diversion groove, medicine outlet groove and arc-shaped channel of the upper cover, and spray out from the nozzle hole of the upper cover;
- a columnar or mist or fan-shaped liquid surface can be formed.
- Figures 6-9 respectively show schematic diagrams of the nozzle-type drug delivery device of the present invention applied to airway products in the tracheal intubation, tracheostomy intubation, dual-lumen bronchial intubation, and nasopharyngeal tube.
- FIG. 6 its structure is composed of a tube body 41, an inflatable cuff 42, a medicine injection tube 43, a medicine injection joint 44, a nozzle type drug delivery device 45, an inflation tube 46, and an inflation valve 47.
- the injection tube 43 and the inflation tube 46 are both connected to the tube body 41 and are both pre-embedded in the tube wall.
- the medicine injection tube 43 extends in the tube wall layer of the tube body 41 and communicates with the nozzle type drug delivery device 45.
- the medicine injection tube 43 is provided with a medicine injection joint 44 at one end away from the tube body 41.
- the inflatable tube 46 extends in the tube wall layer of the tube body 41 and communicates with the inflatable cuff 42.
- the inflation tube 46 is provided with an inflation valve 47 at one end away from the tube body 41.
- the nozzle type drug delivery device 45 of the present invention is pre-buried in the tube body 41, and the position of the nozzle type drug delivery device 45 on the tube body 41 and the spray angle can be adjusted according to clinical needs.
- a certain amount of liquid medicine is injected through the medicine injection connector 44, and reaches the nozzle-type drug delivery device 45 through the medicine injection tube 43 to realize the injection of the liquid medicine.
- a certain dose of local anesthetic can be injected through the injection port during the operation, before extubation and when the patient is awake.
- the local anesthetic can be sprayed through the nozzle It sprays into the trachea, anesthetizes the tracheal mucosa outside the tracheal cuff, reduces the stimulation of the tracheal intubation to the patient’s trachea, thereby reducing the patient’s stress response.
- certain specific drugs can also be given through the tracheal intubation port to meet specific clinical needs.
- Fig. 7 is a schematic diagram of a tracheostomy cannula with a nozzle-type drug delivery device:
- 51 tube body
- 52 inflation Cuff
- 53 injection tube
- 54 injection connector
- 55 nozzle-type drug delivery device
- 56 inflation tube
- 57 inflation valve
- Figure 8 is a dual-lumen bronchial intubation tube with a nozzle-type drug delivery device Schematic diagram:
- 61 tube body; 62: bronchial tube body; 63: tracheal cuff; 64: bronchial cuff; 65: tracheal cuff inflation tube; 66: tracheal cuff inflation valve; 67: bronchial cuff Inflatable tube; 68: bronchial cuff inflation valve; 69: injection tube; 610: injection connector; 611: nozzle-type drug delivery device;
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Abstract
一种应用于气道产品的喷嘴式给药装置，包括上盖（1）以及下盖（2）；上盖（1）包括顶端的喷洒上盖（11）以及底端设置的平直上盖（12）；喷洒上盖（11）顶端设置有喷嘴孔（14）、喷洒上盖（11）内部形成有弧形通道（15）；弧形通道（15）两侧设置有出药槽；下盖（2）包括底端设置的平直下盖（21）以及设置在平直下盖（21）上方的凸起（22）；平直下盖（21）设置有出药孔（24）；平直上盖（21）设置有与凸起（22）匹配的凹槽；凹槽与凸起（22）之间保有间隙形成导流槽（3）；出药孔（24）、导流槽（3）、出药槽、弧形通道（15）以及喷嘴孔（14）顺序连通形成给药通道。装置结构简单，使用方便，支持术中和拔管前实现对病人气管内部的准确给药，减轻患者的痛苦。
Description
本发明属于医疗器械领域，具体涉及一种应用于气道产品的喷嘴式给药装置。
气道产品最常见的有气管插管；气管切开；喉罩；鼻咽管；支气管插管等。目前通过气道产品的手术建立人工呼吸通道是急救和病人救助、护理时最有效、最成熟、最常用的技术手段。但这类手术在导管置入或拔出时对患者的刺激较大，常常引起患者剧烈的应激反应，临床常用在导管置入前表面涂抹局麻药物的方式降低对患者的刺激，但是，在导管置入后无法再次涂抹局麻药物，预先涂抹的局麻药物药效也会逐渐消失，在拔管时，强烈的刺激又会引起患者剧烈的应激反应，严重时危及患者安全。此外，术中需要针对某些患者给予某种特定的药物，比如血管活性药、抗生素；镇静剂等，也是现有临床急需解决的问题。因此在气道产品上能够实现术中和拔管前对患者及时进行镇静和实施治疗功能的给药结构越来越受到医务工作者和医疗器械行业的关注。
发明内容
本发明的目的在于提供一种应用于气道产品的喷嘴式给药装置。
本发明为实现上述目的，采用以下技术方案：
一种应用于气道产品的喷嘴式给药装置，包括上盖以及下盖；所述的上盖包括顶端的喷洒上盖以及底端设置的平直上盖；所述的喷洒上盖顶端设置有喷嘴孔、所述的喷洒上盖内部形成有弧形通道；所述的弧形通道两侧设置有出药槽；所述的下盖包括底端设置的平直下盖以及设置在所述的平直下盖上方的凸起；所述的平直下盖设置有出药孔；所述的平直上盖设置有与所述的凸起匹配的凹槽；所述的凹槽与所述的凸起之间保有间隙形成导流槽；所述的出药孔、导流槽、出药槽、弧形通道以及喷嘴孔顺序连通形成给药通道。
所述的出药槽为弧形槽；所述出药槽的入口与所述的弧形通道匹配形成涡流。优选的，出药槽为对称设置的两个。
所述的弧形通道的截面为梯形；梯形的腰线与轴线之间的夹角为α，0°≤α≤90°。优选的,所述的弧形通道的截面为等腰梯形。
所述的平直上盖外侧连接有安装凸点。
所述的安装凸点的外侧面与连接面的夹角为γ，0°≤γ≤50°；所述的连接面为所述的安装凸点与所述的平直上盖的接触面。
所述的喷嘴孔的截面可以为方形、长方形、圆形、椭圆形或者异形的一种；优选的，为圆形，直径为0.05mm-3mm。
所述的上盖与所述的下盖一体成型或者分体连接；分体连接时所述的上盖与所述的下盖的连接方式为粘结、紧配或者焊接。
所述的凸起两侧设置有定位筋；所述的凹槽设置有与所述的定位筋匹配的曲槽。
与现有技术相比，本发明的有益效果是：
1)本发明结构简单，使用方便，支持术中和拔管前实现对病人气管内部的准确给药，减轻患者的痛苦。
2)喷嘴可依据插管的位置及深度调整位置，按需给病人注入局部药物，增加患者对气管导管的耐受性，减轻气管导管对病人呼吸道刺激的不良反应；也可用于为患者注射生理盐水或消毒水利于清洗咽喉护理。
3)喷嘴可形成多样化的药液面，给药量均匀且利于药液的扩散和渗入，避免对患者产生刺激性呛咳反射，也不会引起声门处肌群麻痹。
4)可应用在不同的气道产品中，适用手术类型广泛，且其部件不含金属材质，支持术中通过核磁共振检查，方便医生及时查验患者病情状况。
图1为本发明应用于气道产品的喷嘴式给药装置的整体结构示意图；
图2为本发明应用于气道产品的喷嘴式给药装置的上盖结构示意图；
图3为本发明应用于气道产品的喷嘴式给药装置的下盖结构示意图；
图4为本发明应用于气道产品的喷嘴式给药装置的出药槽涡流形成示意图；
图5为本发明应用于气道产品的喷嘴式给药装置截面的局部图；
图6-9分别为本发明应用于气道产品的喷嘴式给药装置在气管插管、气管切开插管、双腔支气管插管以及鼻咽管的示意图。
为了使本技术领域的技术人员更好地理解本发明的技术方案，下面结合附图和最佳实施例对本发明作进一步的详细说明。
图1-5示出一种应用于气道产品的喷嘴式给药装置，包括上盖1以及下盖2；所述的上盖与下盖均采用医用高分子材料制成；所述的上盖包括顶端的喷洒上 盖11以及底端设置的平直上盖12；所述的喷洒上盖顶端设置有喷嘴孔14、所述的喷洒上盖内部形成有弧形通道15；所述的下盖包括底端设置的平直下盖21以及设置在所述的平直下盖上方的凸起22；所述的平直下盖内部设置有出药孔24；所述的平直上盖设置有与所述的凸起匹配定位的凹槽；所述的凹槽与所述的凸起之间保有间隙形成导流槽3；所述的出药孔24、导流槽3、弧形通道15以及喷嘴孔14顺序连通形成给药通道。所述的弧形通道两侧设置有出药槽13；所述的出药槽与所述的弧形通道以及导流槽分别连通。所述的出药槽为弧形槽；所述的出药槽的入口与所述的弧形通道匹配形成涡流(如图4示出)，优选的,所述的出药槽为对称设置两个。所述的弧形通道的截面为上窄下宽的梯形，优选的，为等腰梯形；梯形的腰线与轴线之间的夹角为α，0°≤α≤90°。
所述的凸起两侧设置有定位筋23；所述地凹槽设置有与所述地定位筋匹配的曲槽17。所述的平直上盖外侧连接有安装凸点13。所述的安装凸点的外侧面与连接面的夹角为γ，0°≤γ≤50°；所述的连接面为所述的安装凸点与所述的平直上盖的接触面。该种设置可以实现应用于气道产品的喷嘴式给药装置在气管内0-50°之间的倾斜角度，使喷嘴孔实现不同角度的喷射。所述的喷嘴孔的截面可以为方形、长方形、圆形、椭圆形或者异形的一种；优选的，为圆形，直径为0.05mm-3mm。所述的上盖与所述的下盖一体成型或者分体连接；分体连接时所述的上盖与所述的下盖的连接方式为粘结、紧配或者焊接。
本申请的应用于气道产品的喷嘴式给药装置配合气道产品使用，可设计为通过粘接或紧配或焊接方式固定在气道产品的管壁内，也可设计为独立的装置连接在气道产品以外；配合应用的气道产品将药液从下盖的出药孔注入，流经上盖的导流槽、出药槽和弧形通道，从上盖的喷嘴孔喷出；通过调整弧形通道与中轴线之间的夹角，可形成柱状或雾状或扇形状的药液面。图6-9分别示出本发明应用于气道产品的喷嘴式给药装置在气管插管、气管切开插管、双腔支气管插管以及鼻咽管的示意图。
以图6为例进行应用说明：其结构由管体41,充气套囊42，注药管43，注药接头44，喷嘴式给药装置45，充气管46，充气阀47组成。所述注药管43和所述充气管46均连接管体41并均预埋于其管壁内。所述注药管43在管体41的管壁层中延伸并与所述的喷嘴式给药装置45连通。所述注药管43远离所述管体41的一端设有注药接头44。所述充气管46在管体41的管壁层中延伸并与 所述的充气套囊42连通。所述充气管46在远离所述管体41的一端设有充气阀47。
本发明喷嘴式给药装置45预埋在管体41内，可以依据临床需要调整喷嘴式给药装置45在管体41上面的位置及调整喷射的角度。通过注药接头44注入一定量的药液，经过注药管43到达喷嘴式给药装置45，实现药液的喷射。
使用方法：与现有气管插管一样置入，置入后，可以在患者术中和拔管前以及清醒带管时，经注药口注入一定剂量的局麻药物，局麻药物经喷嘴雾状喷射到气管内，麻醉气管套囊外的气管粘膜，减轻气管插管对患者气管的刺激，从而降低患者的应激反应。同理，针对某些特定患者也可以经由气管插管注药口给予某些特定的药物，满足特定的临床需求。
图7-9的喷嘴式给药装置的使用情况与图4类似，其中图7为一种具有喷嘴式给药装置的气管切开插管的示意图：图中：51：管体；52：充气套囊；53：注药管；54：注药接头；55：喷嘴式给药装置；56：充气管；57：充气阀；图8为一种具有喷嘴式给药装置的双腔支气管插管的示意图：图中：61：管体；62：支气管管体；63：气管套囊；64：支气管套囊；65：气管套囊充气管；66：气管套囊充气阀；67：支气管套囊充气管；68：支气管套囊充气阀；69：注药管；610：注药接头；611：喷嘴式给药装置；图9为一种具有喷嘴式给药装置的鼻咽管的示意图：图中：71：管体；72：注药管；73：注药接头；74：喷嘴式给药装置。
以上内容仅为本发明的较佳实施例，对于本领域的普通技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，本说明书内容不应理解为对本发明的限制。
Claims (9)
- 一种应用于气道产品的喷嘴式给药装置，其特征在于，包括上盖以及下盖；所述的上盖包括顶端的喷洒上盖以及底端设置的平直上盖；所述的喷洒上盖顶端设置有喷嘴孔、所述的喷洒上盖内部形成有弧形通道；所述的弧形通道两侧设置有出药槽；所述的下盖包括底端设置的平直下盖以及设置在所述的平直下盖上方的凸起；所述的平直下盖设置有出药孔；所述的平直上盖设置有与所述的凸起匹配的凹槽；所述的凹槽与所述的凸起之间保有间隙形成导流槽；所述的出药孔、导流槽、出药槽、弧形通道以及喷嘴孔顺序连通形成给药通道。
- 根据权利要求1所述的应用于气道产品的喷嘴式给药装置，其特征在于，所述的出药槽为弧形槽；所述出药槽的入口与所述的弧形通道匹配形成涡流。
- 根据权利要求2所述的应用于气道产品的喷嘴式给药装置，其特征在于，所述的弧形通道的截面为梯形；梯形的腰线与轴线之间的夹角为α，0°≤α≤90°。
- 根据权利要求3所述的应用于气道产品的喷嘴式给药装置，其特征在于，所述的出药槽为弧形槽；所述的弧形槽的入口与所述的弧形通道匹配形成涡流。
- 根据权利要求1所述的应用于气道产品的喷嘴式给药装置，其特征在于，所述的平直上盖外侧连接有安装凸点。
- 根据权利要求5所述的应用于气道产品的喷嘴式给药装置，其特征在于，所述的安装凸点的外侧面与连接面的夹角为γ，0°≤γ≤50°；所述的连接面为所述的安装凸点与所述的平直上盖的接触面。
- 根据权利要求1所述的应用于气道产品的喷嘴式给药装置，其特征在于，所述的喷嘴孔截面可以为方形、长方形、圆形、椭圆形或者异形的一种。
- 根据权利要求1所述的应用于气道产品的喷嘴式给药装置，其特征在于，所述的上盖与所述的下盖一体成型或者分体连接；分体连接时所述的上盖与所述的下盖的连接方式为粘结、紧配或者焊接。
- 根据权利要求1所述的应用于气道产品的喷嘴式给药装置，其特征在于，所述的凸起两侧设置有定位筋；所述的凹槽设置有与所述的定位筋匹配的曲槽。
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| US4923448A (en) * | 1988-12-06 | 1990-05-08 | Mark Anderson | Syringe with spray nozzle tip |
| CN1832808A (zh) * | 2003-08-08 | 2006-09-13 | 瓦卢瓦有限合伙公司 | 流体制品喷雾头 |
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